U.S. patent number 3,598,273 [Application Number 04/781,859] was granted by the patent office on 1971-08-10 for container.
This patent grant is currently assigned to Air Cargo Equipment Corporation. Invention is credited to John M. Buday, Donald W. Feddersen, Everett L. Markowski, Blase C. Rau.
United States Patent |
3,598,273 |
Rau , et al. |
August 10, 1971 |
CONTAINER
Abstract
There is disclosed a container adapted to be carried in an
airplane and used to transport either cargo or baggage, the
container comprising a plurality of panels, a plurality of frame
members removably interconnecting the panels, each of the panels
including a pair of spaced-apart sheet metal walls and a body of
rigid cellular construction therebetween, a rigidifying panel and a
set of stiffeners removably mounted in the container, a door
removably mounted in the container by means of a hinge mechanism, a
plurality of latching mechanisms in the door for engaging keeper
structure in the container and being constructed to prevent
inadvertent opening and subsequent removal of the door, handles
housed by the door for removing the door from the container and
including venting ports, a bumper mounted on the base panel of the
container and extending therearound to protect the container from
damage, and removable shelves in the container separated one from
the other.
Inventors: |
Rau; Blase C. (Skokie, IL),
Buday; John M. (Park Ridge, IL), Feddersen; Donald W.
(Northbrook, IL), Markowski; Everett L. (Morton Grove,
IL) |
Assignee: |
Air Cargo Equipment Corporation
(Tulsa, OK)
|
Family
ID: |
25124182 |
Appl.
No.: |
04/781,859 |
Filed: |
December 6, 1968 |
Current U.S.
Class: |
220/1.5;
220/4.28; 312/352; 220/23.89; 220/668 |
Current CPC
Class: |
B65D
88/14 (20130101) |
Current International
Class: |
B65D
88/14 (20060101); B65D 88/00 (20060101); B65d
087/00 () |
Field of
Search: |
;220/1.5,84,4,10,15,83
;161/161 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Leclair; Joseph R.
Assistant Examiner: Garrett; James R.
Claims
What we claim is:
1. A container comprising a generally rectangular base panel, two
elongated side base frame members and two elongated end base frame
members respectively disposed against said base panel at the
margins thereof, two upstanding side panels each disposed with one
of the margins thereof upon a different one of said side base frame
members, four elongated corner frame members respectively disposed
against the generally upstanding margins of said side panels, two
elongated side top frame members each disposed upon a different one
of said side panels at the upper margin thereof, a horizontal top
panel disposed between and against said side top frame members, two
elongated end top frame members respectively disposed against said
top panel at the front and rear margins thereof, a rear panel
disposed with the margins thereof against a rear one of said end
base frame members and against the rear one of said end top frame
members and against the rear ones of said corner frame members,
each of said panels including a pair of spaced-apart substantially
parallel sheet metal walls and a body of rigid cellular
construction disposed therebetween and spacer structure extending
therearound, said body being disposed centrally of said walls and
secured thereto with said spacer structure being disposed at the
margins of said walls and secured thereto and extending along the
periphery of said body, a plurality of readily detachable first
fasteners respectively detachably connecting said panels to said
frame members, a load-bearing rigidifying panel having a width
substantially less than the width of said rear panel, said
rigidifying panel having one edge thereof disposed against said top
panel and another edge thereof disposed against one of said side
panels and extending generally parallel to said rear panel, and a
plurality of readily detachable second fasteners and brackets
respectively detachably mounting said rigidifying panel on the
adjacent panels in said container.
2. The container set forth in claim 1, wherein said rigidifying
panel includes a pair of spaced-apart substantially parallel sheet
metal walls and a body of rigid cellular construction disposed
therebetween and spacer structure extending therearound, said body
being disposed centrally of said walls and secured thereto with
said spacer structure being disposed at the margins of said walls
and secured thereto and extending along the periphery of said
body.
3. The container set forth in claim 1, wherein said one side panel
includes a first portion extending generally parallel to the other
of said side panels and a second portion extending from said first
portion toward said second side panel and said base panel, said
rigidifying panel having a longer side edge and a shorter side edge
extending generally parallel to one another and a top edge disposed
normal to both of said side edges and an oblique edge joining the
bottoms of said side edges, said top edge being disposed against
said top panel and said shorter side edge being disposed against
said first portion and said oblique edge being disposed against
said second portion.
4. The container set forth in claim 1, wherein said rigidifying
panel is disposed with its plane perpendicular to and generally
centrally of said top panel and said one side panel.
5. A container comprising a generally rectangular base panel, two
elongated side base frame members and two elongated end base frame
members respectively disposed against said base panel at the
margins thereof, two upstanding side panels each disposed with one
of the margins thereof upon a different one of said side base frame
members, four elongated corner frame members respectively disposed
against the generally upstanding margins of said side panels, two
elongated side top frame members respectively disposed upon said
side panels at the upper margins thereof, a top panel disposed with
the side margins thereof between and against said side top frame
members, two elongated end top frame members respectively disposed
against said top panel at the front and rear margins thereof, a
rear panel disposed with the margins thereof against the rear one
of said end base frame members and against the rear one of said end
top frame members and against the rear ones of said corner frame
members, each of said panels including a pair of spaced-apart
substantially parallel sheet metal walls and a body of rigid
cellular construction disposed therebetween and spacer structure
extending therearound, said body being disposed centrally of said
walls and secured thereto with said spacer structure being disposed
at the margins of said walls and secured thereto and extending
along the periphery of said body, a plurality of readily detachable
first fasteners respectively detachably connecting said panels to
said frame members, a load-bearing rigidifying panel having a width
substantially less than the width of said rear panel, said
rigidifying panel having one edge thereof disposed against said top
panel and another edge thereof disposed against one of said side
panels, said rigidifying panel extending generally parallel to said
rear panel, a plurality of readily detachable second fasteners and
brackets respectively detachably mounting said rigidifying panel on
the adjacent panels in said container, an elongated T-shaped side
stiffener disposed on the inner surface of the other of said side
panels and in alignment with the adjacent edge of said rigidifying
panel, said side stiffener including a mounting flange secured to
the other of said side panels and a first platelike rib extending
toward said rigidifying panel, a pair of elongated L-shaped top
stiffeners disposed on the inner surface of said top panel and
interconnecting said side stiffener and said rigidifying panel,
each of said top stiffeners including an attachment flange secured
to said top panel and a second platelike rib extending toward said
bottom panel, the second rib of one of said top stiffeners being
disposed adjacent to one side of said first rib and adjacent to the
corresponding wall of said rigidifying panel, the second rib of the
other of said top stiffeners being disposed adjacent to the other
side of said first rib and adjacent to the corresponding wall of
said rigidifying panel, and a plurality of readily detachable third
fasteners detachably connecting said top stiffeners to said side
stiffener and to said rigidifying panel.
6. The container set forth in claim 5, wherein, said rigidifying
panel is disposed with its plane perpendicular to and generally
centrally of said top panel and said one side panel.
7. The container set forth in claim 5, and further comprising at
least one spacer disposed between said second ribs at a point
disposed between said side stiffener and said rigidifying panel to
maintain a predetermined spacing between said second ribs.
8. The container set forth in claim 5, and further comprising a
first splice plate disposed against one side of said rigidifying
panel and one of said L-shaped top stiffeners, a second splice
plate disposed on the other side of said rigidifying panel and
against the other of said L-shaped top stiffeners, at least one
fastener interconnecting said splice plates and said L-shaped top
stiffeners and said rigidifying panel, and at least one fastener
interconnecting only said splice plates and said rigidifying
panel.
9. A container comprising a body having a door-receiving opening
therein, an integral generally F-shaped door support defining an
edge of said door-receiving opening and including an attachment
portion and a retaining portion extending substantially normal to
each other and a guide portion disposed therebetween and extending
away from said attachment portion and away from said retaining
portion, said guide portion terminating in a free distal end spaced
from said attachment portion and said retaining portion, said
attachment portion being mounted on said container adjacent to said
door-receiving opening with said retaining portion extending in the
plane of and toward said opening and said guide portion extending
inwardly thereof, said retaining portion having a convex
cylindrical distal retaining surface disposed on the same side
thereof as said attachment portion and said guide portion having a
concave cylindrical retaining surface in facing relationship with
said distal retaining surface and defining a groove therebetween, a
door for removable mounting in said door-receiving opening and
having a closed position with respect thereto, an integral hanger
including a mounting portion attached to one edge of said door and
including a tongue, said tongue having a concave cylindrical
bearing surface on its outer face shaped complementary to said
distal retaining surface and a convex cylindrical distal bearing
surface shaped complementary to said guide portion concave
cylindrical retaining surface and said groove, said tongue in the
closed position of said door being disposed in said groove with
said concave bearing surface in contact with said distal retaining
surface and with said distal bearing surface in contact with said
guide portion concave cylindrical retaining surface, and at least
one latching mechanism spaced from said hanger and said door
support and having a latching condition for engagement of said door
with said body and a release condition for disengagement of said
door from said body, said latching mechanism in the latching
condition thereof cooperating with said door support and said
hanger to prevent pivoting of said door with respect to said
container and thus to prevent removal of said tongue from said
groove to hold said door in said door-receiving opening, said
latching mechanism in the release condition thereof accommodating
pivoting of said door with respect to said container and thus to
permit movement of said tongue out of said groove whereby to allow
removal of said door from said door-receiving opening.
10. The container set forth in claim 9, wherein said door support
is elongated and extends essentially from one side of said
door-receiving opening to the other side thereof, said hanger being
elongated and extending essentially from one edge of said door to
the opposite edge thereof.
11. The container set forth in claim 9, wherein said door support
is disposed adjacent to the top of said door-receiving opening.
12. The container set forth in claim 9, wherein said latching
mechanism includes keeper structure mounted on said body adjacent
to said door-receiving opening, a latch rotatably mounted on said
door adjacent to the periphery thereof and being rotatable between
a latching position for engagement with the associated keeper
structure and a release position for disengagement from the
associated keeper structure, a driven gear rotatably mounted on
said door and drivingly connected to said latch for imparting
rotation thereto, a drive gear rotatably mounted on said door and
drivingly connected to said driven gear for imparting rotation
thereto and a handle drivingly connected to said driving gear for
imparting rotation thereto to move said latch between the latch and
release positions thereof, said gears being constructed and
arranged to cause a given amount of rotation of said handle to
impart a substantially lesser amount of rotation to said latch,
thereby to reduce the chances of an inadvertent rotation of said
handle causing said latch to move from the lathing position thereof
to the release position thereof.
13. In a container adapted to be transported on the floor of a
vehicle and subjected to striking other objects in the vehicle, the
combination comprising a generally rectangular base panel, two
elongated side base frame members and two elongated end base frame
members each including an attachment flange and a pair of outwardly
directed spaced-apart retaining jaws, said attachment flanges being
respectively disposed against said base panel at the margins
thereof and secured thereto, two elongated side bumpers
respectively disposed adjacent to said side base frame members and
two elongated end bumpers respectively disposed adjacent to said
end base frame members, each of said bumpers having a longitudinal
extent less than the longitudinal extent of the associated frame
member, each of said bumpers including a pair of elongated
spaced-apart gripping flanges thereon forcibly urged between the
associated retaining jaws and respectively biased thereagainst,
said bumpers being grippingly held by the associated retaining jaws
and removable therefrom by forcibly withdrawing said gripping
flanges from said retaining jaws, a plurality of V-shaped corner
bumpers each having a pair of diverging legs merging into a curved
apex, said corner bumpers being respectively disposed adjacent to
the corners of said base panel with said legs being respectively
aligned with the adjacent side bumper and end bumper, means
attaching said corner bumpers to said base frame members and
accommodating ready detachment of said corner bumpers therefrom,
said side bumpers and said end bumpers and said corner bumpers
defining an essentially continuous bumper around the periphery of
said base panel to protect said container from damage when it
strikes another object.
14. The combination set forth in claim 13, wherein the ends of said
corner bumpers are disposed against the ends of said base frame
members, and further comprising, eight splice plates respectively
disposed against said corner bumpers and the adjacent base frame
members and respectively removably joined thereto.
15. The combination set forth in claim 13, wherein each of said
corner bumpers includes a pair of legs diverging at an obtuse angle
so that the distance between the apexes of successive corner
bumpers is slightly less than the corresponding distance between
opposing ones of said side and end bumpers to facilitate guiding of
said container.
16. The container set forth in claim 15, and further comprising two
doors respectively detachably mounted on said frame members to
close the openings in the ends of said container.
Description
This invention is directed to a container for use in an airplane,
the container being constructed to be lightweight, yet durable.
It is an important object of the present invention to provide a
container comprising a base panel, elongated base frame members
connected to the base panel at the margins thereof, two side panels
respectively connected at one of the margins thereof to two of the
base frame members, four elongated corner frame members
respectively connected to the generally upstanding margins of the
side panels, two elongated side top frame members respectively
connected to the side panels at the upper margins thereof, a top
panel connected at the side margins thereof to the side top frame
members, two elongated end top frame members respectively connected
to the top panel at the front and rear margins thereof.
In connection with the foregoing object, another object of the
invention is to provide each of the panels with a pair of
spaced-apart substantially parallel sheet metal walls and spacer
structure and a body of rigid cellular construction disposed
between the walls and secured thereto, the spacer structure being
disposed between the associated sheet metal walls at the margins
thereof and secured thereto and extending around the periphery of
the associated body of rigid cellular construction.
In connection with the foregoing objects, it is another object to
make the connections between the panels and the adjacent frame
members detachable.
Another object of the invention is to provide a container
comprising a door mounted in the door-receiving opening thereof for
closure of the opening and readily removable therefrom for exposing
the door-receiving opening.
Yet another object of the invention is to provide an improved
container of the type set forth comprising a base panel, elongated
base frame members detachably connected to the base panel at the
margins thereof, two side panels respectively detachably connected
at one of the margins thereof to two of the base frame members,
four elongated corner frame members respectively detachably
connected to the generally upstanding margins of the side panels,
two elongated side top frame members respectively detachably
connected to the side panels at the upper margins thereof, a top
panel detachably connected at the margins thereof to the side top
frame members, two elongated end top frame members respectively
detachably connected to the top panel at the front and rear margins
thereof, a rear panel detachably connected at the margins thereof
to a rear one of the end base frame members and to the rear one of
the top frame members and to the rear ones of the corner frame
members, and a load-bearing rigidifying panel having a longitudinal
extent substantially less than the longitudinal extent of the rear
panel, the rigidifying panel having the edges thereof disposed
against the top panel and detachably connected thereto and against
one of the side panels and detachably connected thereto.
In connection with the foregoing object, another object of the
invention is to provide a container of the type set forth and
further comprising an elongated T-shaped side stiffener including a
mounting flange secured to the other of the side panels and a
platelike rib, a pair of elongated L-shaped top stiffeners each
including a first attachment flange secured to the top panel and
each including a second platelike rib, the second rib of one of the
top stiffeners being detachably connected to one side of the first
rib adjacent to the corresponding wall of the rigidifying panel,
the second rib of the other of the top stiffeners being detachably
connected to the other side of the first rib and adjacent to the
corresponding wall rigidifying panel.
Still another object of the invention is to provide an improved
container comprising a door adapted for mounting in the
door-receiving opening of the container to close the same, a latch
rotatably mounted on the door adjacent to the periphery thereof and
being rotatable between a latching position for engagement with the
keeper structure in the container and a release position for
disengagement from the keeper structure, a driven gear rotatably
mounted on the door and drivingly connected to the latch for
imparting rotation thereto. A driving gear rotatably mounted on the
door and drivingly connected to the driven gear for imparting
rotation thereto, and a handle drivingly connected to the driving
gear for imparting rotation thereto to move the latch between the
latching and release positions thereof.
In connection with the foregoing object, it is another object of
the invention to provide an improved container wherein the latching
mechanism is mounted in a housing fixedly mounted on the door
adjacent to the periphery thereof and defining a handle recess, the
handle being pivotal between an inner storage position disposed in
the recess and an outer operating position disposed out of the
recess.
Yet another object of the invention is to provide a latching
mechanism including a latch, a driven gear drivingly connected to
the latch for imparting rotation thereto, a driving gear rotatably
mounted on the door and drivingly connected to the driven gear for
imparting rotation thereto, and a handle drivingly connected to the
driving gear for imparting rotation thereto to move the latch
between the latching and release positions thereof, the gears being
constructed and arranged to cause a given amount of rotation of the
handle to impart a substantial lesser amount of rotation to the
latch.
Still another object of the invention is to provide an improved
container comprising a body having a door-receving opening therein,
a door support mounted on the body adjacent to the door-receiving
opening, the door support including a retaining portion extending
into the opening and a guide portion extending inwardly from the
opening, the retaining portion having an arcuate outer retaining
surface and the guide portion having an arcuate inner retaining
surface in facing relationship with the outer retaining surface and
defining a groove therebetween, a door for removably mounting in
the door-receiving opening and having a closed position with
respect thereto, a hanger mounted on the door along one edge
thereof including a tongue having an arcuate outer bearing surface
and an arcuate inner bearing surface, the hanger in the closed
position of the door being disposed in the groove with the outer
bearing surface in facing relationship with the outer retaining
surface and with the inner bearing surface in facing relationship
with the inner retaining surface.
In connection with the foregoing object, it is another object of
the invention to provide a container wherein the retaining portion
has a convex sliding pivot surface, having a concave sliding pivot
surface, the convex pivot surface being disposed in abutting
relationship with the concave pivot surface when the tongue is
disposed within the groove and during the removal of the tongue
from the groove.
Yet another object of the invention is to provide a door for
closing the opening of a container, wherein there is mounted in the
door a casing defining a handle recess with a socket therein, a
handle pivotally mounted in the socket and pivotal between an inner
storage position disposed in the recess and outer operating
position disposed out of the recess.
Still another object of the invention is to provide a container
comprising a base panel, base frame members on the base panel and
each including a pair of outwardly directed spaced-apart retaining
jaws, elongated side bumpers and end bumpers respectively disposed
adjacent to the side and end base frame members, each of the
bumpers including a pair of elongated spaced-apart gripping flanges
thereon forcibly urged between the associated retaining jaws and
respectively biased thereagainst, the bumpers being grippingly held
by the associated retaining jaws and removable therefrom by
forcibly withdrawing the gripping flanges from the retaining
jaws.
In connection with the foregoing object, it is another object of
the invention to provide a container which further includes a
plurality of V-shaped corner bumpers each having a pair of
diverging legs merging into a curved apex, the corner bumpers being
respectively disposed adjacent to the corners of the base panel
with legs being respectively aligned with the adjacent side and end
bumpers, the corner bumpers being attached to the base frame
members and being readily removable therefrom.
Yet another object of the invention is to provide a container
comprising a base panel with a base frame extending therearound, a
plurality of tiedown mechanisms each having an adjustable finger
thereon, the base frame having an abutment surface thereon against
which the finger of each of the tiedown mechanisms abuts to hold
the container in position on the floor.
Still another object of the invention is to provide a container
with a plurality of shelf supports detachably connected therein, a
pair of shelf panels carried by the shelf supports and detachably
connected thereto, and a divider separating the shelf panels from
each other.
Further features of the invention pertain to the particular
arrangement of the parts whereby the above-outlined and additional
features thereof are attained.
The invention, both as to its organization and method of
construction, together with other objects and advantages, will best
be understood by reference to the following specification taken in
connection with the accompanying drawings, in which:
FIG. 1 is a perspective view of a cargo container made in
accordance with and embodying the principles of the present
invention;
FIG. 2 is a view in lateral cross section through the fuselage of
an airplane showing two of the cargo containers of FIG. 1 in the
operative position;
FIG. 3 is a perspective view showing the cargo container in phantom
and showing the rigidifying panel in position therein;
FIG. 4 is an enlarged fragmentary view in vertical section through
the cargo container of FIG. 1 along the lines 4-4 thereof;
FIG. 5 is a view in horizontal section of one of the rigidifying
panel mounting brackets shown in FIG. 4 along the lines 5-5
thereof;
FIG. 6 is an enlarged fragmentary view in vertical section through
the cargo container of FIG. 1 along the lines 6-6 thereof;
FIG. 7 is a view in horizontal section through the side stiffener
and side panel of FIG. 6 along the lines 7-7 thereof;
FIG. 8 is an enlarged fragmentary view in vertical section through
the cargo container of FIG. 1 along the lines 8-8 thereof and
showing the juncture of the rigidifying panel and the top
stiffeners;
FIG. 9 is a view in vertical section through the top stiffeners and
top panel of FIG. 8 along the lines 9-9 thereof;
FIG. 10 is a view in vertical section through the rigidifying
panel, the splice plates, the top panel and the top stiffeners of
FIG. 8 along the lines 10-10 thereof;
FIG. 11 is an enlarged fragmentary perspective view of the corner
of the cargo container of FIG. 1 within the circle 11 thereof,
certain portions of the door being broken away to expose the door
frame;
FIG. 12 is an enlarged view in vertical section through the door
frame and bumpers of FIG. 11 along the line 12-12 thereof;
FIG. 13 is an enlarged fragmentary view in vertical section through
the cargo container of FIG. 1 along the lines 13-13 thereof;
FIG. 14 is a top plan view of one of the four corner bumpers
installed in the cargo container of FIG. 1;
FIG. 15 is a view in vertical section of the corner bumper of FIG.
14 along the lines 15-15 thereof;
FIG. 16 is an enlarged fragmentary view in vertical section through
the cargo container of FIG. 1 along the lines 16-16 thereof and
showing the detail of the hinge mechanism when the door is in the
closed position thereof;
FIG. 17 is a view in vertical section similar to that of FIG. 16
but with the hinge mechanism in the condition thereof when the door
is being removed from the cargo container;
FIG. 18 is an enlarged view of one of the latching mechanisms of
the door in the cargo container of FIG. 1 and showing the handle in
its latching and release positions thereof;
FIG. 19 is a further enlarged view in vertical section of the
latching mechanism of FIG. 18 along the lines 19-19 thereof, with
the handle being shown in its storage position in full lines and in
its operating position in broken lines;
FIG. 20 is an elevation view of the gears and latch mechanism of
FIG. 19 wherein the latch is shown in both its latching and release
positions;
FIG. 21 is a view in lateral cross section of the elongated
door-sealing gasket;
FIG. 22 is an enlarged elevation view of one of the handles on the
door of the cargo container of FIG. 1;
FIG. 23 is a view in vertical section of the handle of FIG. 22
along the lines 23-23 thereof;
FIG. 24 is a view in vertical section of the tiedown mechanism in
the cargo container of FIG. 1 along the lines 24-24 thereof;
FIG. 25 is a perspective view of a second embodiment of a baggage
container made in accordance with and embodying the principles of
the present invention;
FIG. 26 is an enlarged perspective view of a portion of the baggage
container of FIG. 25 and showing the mounting of the shelf;
FIG. 27 is an enlarged fragmentary view in vertical section through
the baggage container of FIG. 25 along the lines 27-27 thereof and
illustrating further aspects of the shelf mounting;
FIG. 28 is an enlarged view in vertical section of the baggage
container of FIG. 25 along the lines 28-28 thereof; and
FIG. 29 is an enlarged perspective view of the portion of the
baggage container of FIG. 25 shown in the circle 29, and showing
further aspects of the shelf mounting.
Referring now to the drawings, and particularly to FIGS. 1 to 3
thereof, there is illustrated a cargo container 50 made in
accordance with and embodying the principles of the present
invention. The cargo container 50 is adapted for use in an aircraft
60 which has the usual parts such as a fuselage 61 and wings 62,
with a longitudinally extending upper deck 63 disposed slightly
below the midpoint of the aircraft 60, thus to define a passenger
compartment 64 in the space above the deck 63. Spaced well below
the deck 63 and extending substantially parallel thereto is a lower
deck 66, defining a cargo and/or baggage compartment 65 between the
decks 63 and 66. In use, there will be provided two rows of cargo
containers 50 (or baggage containers as the case may be) in
side-by-side relationship and disposed along the length of the
fuselage 61. As will be understood more fully hereinafter, a
portion of one wall in each of the cargo containers 50 is slanted
so as to accommodate a container 50 of the maximum length (along
the lateral dimension of the airplane 60).
Referring now to FIGS. 1 and 4, the details of construction of the
cargo container 50 will be described. The cargo container 50
comprises a base panel 70 including a pair of spaced-apart
substantially rectangular sheet metal walls extending generally
parallel to each other. Disposed between the walls 71 and 72 is a
filler 73 in the form of a body of rigid cellular construction
preferably formed of aluminum having a honeycomb structure, the
filler 73 being secured to the walls 71 and 72 by means of a sheet
of epoxy. Disposed between the metal walls 71 and 72 at the margins
thereof and extending around the periphery of the filler 73 is a
rigid frame or spacer structure 74 in the form of an elongated
channel having a U-shaped cross section with a bight 76 carrying
flanges 75. The spacer structure 74 is bonded into the panel 70 by
use of expanding epoxy disposed between the bight 76 and the
adjacent portion of the filler 73, and by use of epoxy between the
flanges 75 and the adjacent portions of the walls 71 and 72.
Preferably for the sake of minimizing the weight, maximizing the
strength, and simplifying the manufacture, the spacer structure 74
is formed of an aluminum extrusion. The spacer structure 74 lends
rigidity to the base panel 70 and, in addition, provides a means
for attaching the base panel 70 to other parts of the cargo
container 50. Disposed around the margin of the base panel 70 and
extending through the wall 72 and through the flanges 75 is a
plurality of holes through which bolts may be inserted for use in
connecting other parts of the cargo container 50 to the base panel
70. For this purpose, there is provided a plurality of nuts 77
respectively in alignment with the holes in the wall 72.
The cargo container 50, as shown in FIG. 4, comprises an elongated
side base frame member 80 disposed against the base panel 70 along
the left-hand margin thereof as viewed in FIG. 1. The side base
frame member 80 includes a body portion 81 carrying an inwardly
directed attachment flange 82 and an upstanding flange 83, the
upstanding flange 83 carrying an out-turned flange 84 having on the
outer end thereof an upturned flange 85 directed upwardly and
outwardly. The upper surface of the body portion 81 defines an
engagement surface 87 for use with a plurality of locking
mechanisms 67 mounted on the lower deck 66 of the aircraft 60. The
locking mechanisms 67, one of which is shown in phantom, in FIG. 4,
include a finger 68 which may be swiveled from a disengaging
position to a position where it is disposed against the engagement
surface 87 and tightened thereagainst to hold the cargo container
50 in place. It is to be understood that there are similar locking
mechanisms disposed adjacent to other parts of the cargo container
50 and operated in a similar fashion as will be explained more
fully hereinafter.
Projecting outwardly from the body portion 81 is a pair of
longitudinally extending and spaced-apart retaining jaws 88. In
order to minimize the weight yet provide maximum strength, the side
base frame member 80 is preferably formed of an aluminum extrusion
having therein a longitudinally extending bore 89 so as to minimize
the amount of aluminum required. The side base frame member 80 is
disposed adjacent to the left side (as viewed in FIGS. 1 and 4) of
the base panel 70, with the attachment flange 82 disposed against
the left-hand margin of the top wall 72. A threaded bolt 94 is
passed through an opening in the attachment flange and through
openings in the wall 72 and the flange 75 and threadably engages
the nut 77 to secure the base frame member 80 in place. It is to be
understood that there is a plurality of holes along the
longitudinal extent of the attachment flange 82 corresponding in
number to the holes in the wall 72 for use in securing the
attachment flange 82 along the length thereof.
Although not shown in the drawings, the base frame member 80 does
not have the cross section shown in FIG. 4 from the front of the
base panel 70 to the rear thereof. For reasons that will become
more clear subsequently, only the flanges 84 and 85 continue
throughout the entire lateral extent of the base panel 70, the
remainder of the parts, namely, the body portion 81, the attachment
flange 82, the upstanding flange 83, and the retaining jaws 88,
being somewhat shorter than the lateral extent of the base panel
70.
There is provided an elongated side bumper 95 preferably formed of
an extruded length of aluminum and includes a body 96 having a
rounded or curved outer surface 97. Integral with the body 96 is a
pair of spaced-apart gripping flanges 98 which are biased away from
each other. The side bumper 95 is installed on the base frame
member 80 by urging the gripping flanges 98 into the space between
the retaining jaws 88. Because the gripping flanges are biased away
from one another, they will respectively abut against the retaining
jaws 88 so as to be grippingly held thereby and removable therefrom
by forcibly withdrawing the gripping flanges 98. The bumper 95
protects the left side (as viewed in FIG. 1) of the cargo container
50 as it is being moved and jostled about during loading and
unloading thereof. It is to be understood that the lateral extent
of the bumper 95 is less than the lateral extent of the base panel
70 and is equal in length to the length of the retaining jaws
88.
Referring now to FIGS. 1 and 6 of the drawings, the cargo container
50 further comprises an elongated side base frame member 100
disposed against the base panel 70 along the right-hand margin
thereof as viewed in FIG. 1. The side base frame member 100
includes a body portion 101 carrying an inwardly directed
attachment flange 102 and an upstanding flange 103, the upstanding
flange 103 carrying an out-turned flange 104 having on the outer
end thereof an upturned flange 105. The upper surface of the body
portion 101 defines an engagement surface 107 for use with the
locking mechanisms 67 mounted on the lower deck 66 of the aircraft
60 (see FIG. 24). As explained with respect to the frame member 80,
the locking mechanisms 67 include a finger 68 which may be swiveled
from a disengaging position to a position where it is disposed
against the engagement surface 107 and tightened thereagainst to
hold the cargo container 50 in place.
Projecting outwardly from the body portion 101 is a pair of
longitudinally extending and spaced-apart retaining jaws 108. In
order to minimize the weight, yet provide maximum strength, the
side base frame member 100 is preferably formed of an aluminum
extrusion having therein a longitudinally extending bore 109 so as
to minimize the amount of aluminum required. The side base frame
member 100 is disposed adjacent to the right-hand side (as viewed
in FIGS. 1 and 6) of the base panel 70, with the attachment flange
102 disposed against the right-hand margin of the top wall 72. A
threaded bolt 114 is passed through an opening in the attachment
flange 102 and through openings in the wall 72 and the flange 75
and threadably engages the nut 77 to secure the base frame member
100 in place. It is to be understood that there is a plurality of
holes along the longitudinal extent of the attachment flange 102
corresponding in number to the holes in the wall 72 for use in
securing the attachment flange 102 along the length thereof.
Although not shown in the drawings, the base frame member 100 does
not have the cross section shown in FIG. 6 from the front of the
base panel 70 to the rear thereof. For reasons that will become
more clear subsequently, only the flanges 104 and 105 continue
through the entire lateral extent of the base panel 70, the
remainder of the parts, namely, the body portion 101, the
attachment flange 102, the upstanding flange 103, and the retaining
jaws 108, being somewhat shorter than the lateral extent of the
base panel 70.
There is provided an elongated side bumper 115 preferably formed of
an extruded length of aluminum and includes a body 116 having a
rounded or curved outer surface 117. Integral with the body 116 is
a pair of spaced-apart gripping flanges 118 which are biased away
from each other. The side bumper 115 is installed on the base frame
member 100 by urging the gripping flanges 118 into the space
between the retaining jaws 108. Because the gripping flanges are
biased away from one another, they will respectively abut against
the retaining jaws 108 so as to be grippingly held thereby and
removable therefrom by forcibly withdrawing the gripping flanges
118. The bumper 115 protects the right side (as viewed in FIG. 1)
of the cargo container 50 as it is being moved and jostled about
during loading and unloading thereof. It is to be understood that
the lateral extent of the bumper 115 is less than the lateral
extent of the base panel 70 and is equal in length to the length of
the retaining jaws 108.
Referring now to FIGS. 1 and 13 of the drawings, the cargo
container 50 further comprises an elongated end base frame member
120 disposed against the base panel 70 along the front or forward
margin thereof as viewed in FIG. 1. The end base frame member 120
includes a body portion 121 carrying an inwardly directed
attachment flange 122 and an upstanding flange 123, the upstanding
flange 123 carrying a channel-shaped portion 124 defined by a pair
of spaced-apart elongated lips 125a and 125b extending generally
parallel to each other. For reasons to be explained, the lower
surface of the lip 125a defines an abutment surface 126. The upper
surface of the body portion 121 defines an engagement surface 127
for use with the locking mechanisms 67 mounted on the lower deck 66
of the aircraft 60. The locking mechanisms 67, one of which is
shown in phantom in FIG. 13, includes a finger 68 which may be
swiveled from a disengaging position to a position where it is
disposed against the engagement surface 127 and tightened
thereagainst to hold the cargo container 50 in place.
The base frame member 120 does not have the cross section shown in
FIG. 13 from one side of the base panel 70 to the other side
thereof. For reasons that will become more clear subsequently, only
the channel-shaped portion 124 continues throughout the entire
longitudinal extent of the base panel 70, the remainder of the
parts, namely, the body portion 121, the attachment flange 122, the
upstanding flange 123, and the retaining jaws 128, being somewhat
shorter than the longitudinal extent of the base panel 70.
Projecting outwardly from the body portion 121 is a pair of
longitudinally extending and spaced-apart retaining jaws 128. In
order to minimize the weight, yet provide maximum strength, the end
base frame member 120 is preferably formed of an aluminum extrusion
having therein a longitudinally extending bore 129 so as to
minimize the amount of aluminum required. The end base frame member
120 is disposed adjacent to the one side (as viewed in FIGS. 1 to
4) of the base panel 70, with the attachment flange 122 disposed
against the left-hand margin of the top wall 72. A threaded bolt
134 is passed through an opening in the attachment flange 122 and
through openings in the wall 72 and the flange 75 and threadably
engages the nut 77 to secure the base frame member in place. It is
to be understood that there is a plurality of holes along the
longitudinal extent of the attachment flange 122 corresponding in
number to the holes in the wall 72 for use in securing the
attachment flange 122 along the length thereof.
There is provided an elongated side bumper 135 preferably formed of
an extruded length of aluminum metal and includes a body 136 having
a rounded or outer curved surface 137. Integral with the body 136
is a pair of spaced-apart gripping flanges 138 which are biased
away from each other. The side bumper 135 is installed on the base
frame member 120 by urging the gripping flanges 138 into the space
between the retaining jaws 128. Because the gripping flanges are
biased away from one another, they will respectively abut against
the retaining jaws 128 so as to be grippingly held thereby and
removable therefrom by forcibly withdrawing the gripping flanges
138 from the retaining jaws 128. The bumper 135 protects the front
(as viewed in FIG. 1) of the cargo container 50 as it is being
moved and jostled about during loading and unloading thereof. It is
to be understood that the lateral extent of the bumper 135 is less
than the longitudinal extent of the base panel 70 and is equal in
length to the length of the retaining jaws 128.
Although not shown, it is to be understood that there is provided
an end base frame member at the rear of the base panel 70 and
having a construction like the base frame member 100. As is the
case with the front end base frame member 120, the rear end base
frame member (not shown) is shorter than the longitudinal extent of
the base panel 70. Also the bumper (not shown) carried by the rear
end base frame member is shorter than the longitudinal extent of
the base panel 70. As will be explained in detail, the corner
bumpers 420 fill the gaps left by the shorter side and end
bumpers.
Referring now to FIG. 4, the cargo container 50 is therein shown to
include a sloping side panel 140 having a construction similar to
the other panels in the container 50, the panel 140 including a
pair of spaced-apart substantially rectangular sheet metal walls
141 and 142 disposed generally parallel to one another. A filler
143 formed of a body of rigid cellular construction, is disposed
between the walls 141 and 142 and secured thereto. A rigid frame or
elongated spacer structure 144, preferably in the form of a solid
aluminum extrusion, is disposed between the walls 141 and 142 at
the margins thereof and extends around the periphery of the filler
143. The spacer structure 144 is secured both to the filler 143 and
to the walls 141 and 142 to lend strength to the panel 140. Formed
in the spacer structure 144 is a plurality of spaced-apart openings
therethrough for use in receiving fasteners to attach the panel 140
to other parts of the cargo container 50. One of the margins of the
sloping side panel 140 is disposed against the upturned flange 85
of the side base member 80 and is supported thereby, so as to slant
upwardly and outwardly from the base panel 70. Bolts 146 pass
through aligned openings in the upturned flange 85, the walls 141
and 142 and the spacer structure 144 and engage nuts 145 to secure
the panel 140 in place.
There is also provided a vertical side panel 150 having a
construction like that of the sloping side panel 140, and including
a pair of spaced-apart substantially rectangular sheet metal walls
151 and 152 disposed parallel to one another. Disposed between the
walls 151 and 152 is a filler 153 in the form of a body of rigid
cellular construction, with a rigid frame or elongated spacer
structure 154 extending around the periphery of the filler 153.
There is provided a plurality of spaced-apart holes in the spacer
structure 154 for use in attaching the panel 150 to other parts of
the cargo container 50.
To interconnect the panels 140 and 150, there is provided an
integral elongated connecting frame member 160 including attachment
flanges 161 and 162 diverging at an obtuse angle, with a protrusion
163 being disposed between the attachment flanges 161 and 162. The
connecting frame member 160 is disposed such that the protrusion
163 is between the adjacent ends of the panels 140 and 150, the
attachment flange 161 being disposed against the wall 141 of the
panel 140 adjacent to the margin thereof. A bolt 167 is passed
through an opening in the flange 161 and aligned openings in the
walls 141 and 142 and in the spacer structure 144 and engages a nut
166, thus to attach the connecting frame member 160 to the panel
140. It is to be understood that additional fasteners are provided
along the length of the member 160. The flange 162 is disposed
against the wall 151 of the panel 150 at the lower margin thereof.
A bolt 169 is passed through an opening in the flange 162 and
aligned openings in the walls 151 and 152 and in the spacer
structure 154 and engages a nut 168, thus to attach the connecting
frame member 160 to the panel 150. It is to be understood that
additional fasteners are provided along the length of the member
160.
By virtue of the above described construction, the panel 150 will
be disposed generally vertically and the panel 140 will slant from
the lower end of the panel 150 inwardly and toward the base panel
70.
There is provided a left-hand (as viewed in FIGS. 1 and 4) top
frame member 170 which includes an elongated body 171 and
attachment flanges 173 and 174 disposed in planes generally normal
to each other. Preferably, the frame member 170 is in the form of
an aluminum extrusion having a longitudinal bore 172 therein to
minimize the weight of the member 170 without any loss in strength
thereof. The top frame member 170 is disposed on top of the side
panel 150, with the attachment flange 174 being disposed against
the wall 151 of the panel 150 at the margin thereof. Bolts 176 pass
through openings in the flange 174 and through openings in the
walls 151 and 152 and the spacer structure 154 and engage nuts 175,
thus to mount the top frame member 170 upon the side panel 150.
Referring now to FIG. 6, details of the right-hand (as viewed in
FIGS. 1 and 6) side panel 180 will be described, the side panel 180
including a pair of spaced-apart substantially rectangular sheet
metal walls 181 and 182 and disposed generally parallel to each
other. A filler 183 formed of a body of rigid cellular construction
is disposed between the walls 181 and 182 and secured thereto. A
rigid frame or elongated spacer structure 184, preferably in the
form of a solid aluminum extrusion, is disposed between the walls
181 and 182 at the margins thereof and extends around the periphery
of the filler 183. The spacer structure 184 is secured both to the
filler 183 and to the walls 181 and 182 to lend strength to the
panel 180. Formed in the spacer structure is a plurality of
spaced-apart openings therethrough for use in receiving fasteners
to attach the panel 180 to other parts of the cargo container
50.
The lower margin of the inner surface of the side panel 180 is
disposed against the upturned flange 105 of the side base member
100 and is supported thereby. Bolts 186 pass through aligned
openings in the upturned flange 105, the walls 181 and 182 and the
spacer structure 184 and engage nuts 185 to secure the panel 180 in
place.
Disposed on top of the side panel 180 is a top frame member 190
which includes an elongated body 191 and attachment flanges 193 and
194 disposed in planes normal to each other. Preferably, the frame
member 190 is in a form of an aluminum extrusion having a
longitudinal bore 192 therein to minimize the weight of the member
190 without any loss in strength thereof. The top frame member 190
is disposed on top of the side panel 180, with the attachment
flange 194 being disposed against the wall 181 of the panel 180 at
the margin thereof. Bolts 196 pass through openings in the flange
194 and through openings in the walls 181 and 182 and the spacer
structure 184 and engage nuts 195, thus to mount the top frame
member 190 upon the side panel 180.
The cargo container 50 further comprises a top panel 200 including
a pair of spaced-apart substantially rectangular sheet metal walls
201 and 202 and a filler 203 in the form of a body of rigid
cellular construction. There is also provided a rigid frame or
spacer structure 204 disposed between the sheet metal walls 201 and
202, secured thereto and extending around the periphery of the
filler 203. Formed in the spacer structure 204 in the opposite
sides thereof adjacent to the frame members 170 and 190 is a pair
of laterally extending recesses or rabbets 205. To connect the top
panel 200 to the side panel 180, the attachment flange 193 of the
right-hand top frame member 190 is disposed within the rabbet 205
on the right side of the top panel 200. A plurality of bolts 207
passes through openings in the flange 193 located at spaced-apart
points thereon and through openings in the spacer structure 204 and
in the wall 202 and respectively engages a plurality of nuts 206,
thus to attach the top panel 200 to the side panel 180. To connect
the top panel 200 to the side panel 150, the attachment flange 173
of the left-hand top frame member 170 is disposed within the rabbet
205 on the left side of the top panel 200. A plurality of bolts 207
passes through openings in the flange 173 located at spaced-apart
points thereon and through openings in the spacer structure 204 and
in the wall 202 and respectively engages a plurality of nuts 206,
thus to attach the top panel 200 to the side panel 150. The depth
of each of the rabbets 205 is equal to the thickness of the
attachment flanges 173 and 193 so that the upper surfaces of the
attachment flanges 173 and 193 and the upper surface of the top
panel 200 are substantially flush with one another and present a
smooth, substantially continuous surface, thereby preventing
collection of water on the top panel 200.
Referring now to FIGS. 1, 11, and 19, it may be seen that the cargo
container 50 includes a slanting corner frame member 220 that forms
a continuation of the front end base frame member 120 and includes
an attachment flange 221 carrying thereon a channel-shaped portion
222, the purpose for which will be described in detail hereinafter.
The attachment flange 221 is secured to the sloping side panel 140
at the front margin thereof by utilizing nuts and bolts in a
fashion similar to that described with reference to others of the
panel-frame member interconnections. The channel-shaped portion 222
defines a keeper surface 223 and includes an out-turned lip 224,
the bottom surface of the out-turned lip 224 providing an abutment
surface 225 for use as will be described in more detail
hereinafter.
There is also provided a vertical corner frame 230 member disposed
on top of the slanting corner frame member 220 and secured to the
vertical side panel 150 in a similar fashion. Although not shown,
the vertical corner frame member 230 has a channel-shaped portion
similar to the channel-shaped portion 222. A vertical corner frame
member 240 is disposed adjacent to the right-hand (as viewed in
FIG. 1) side of the cargo container 50 and has a construction like
that described with reference to the corner frame member 230 and
includes an attachment flange secured by means of nuts and bolts to
the side panel 180. There is also provided a rear slanting corner
frame member 250 secured to the rear end of the slanting side panel
140 by means of nuts and bolts in the same fashion as previously
described. The slanting corner frame member 250 may have a
construction similar to the top frame members 170 and 190. Disposed
on top of the slanting corner frame member 250 and having a
construction similar thereto is a vertical corner frame member 260
secured to the vertical side panel 150 adjacent to the rear margin
thereof. Disposed adjacent to the side panel 180 adjacent to the
rear end thereof is a vertically extending corner frame member 270
having a construction similar to the construction of the corner
frame member 260 and directed generally parallel thereto. One of
the flanges of the corner frame member 270 is secured to the side
panel 180 at the margin thereof by means of nuts and bolts in a
fashion like that described with reference to others of the panels
and frame members.
A top frame member 290 having a construction similar to the top
frame members 170 and 190 is disposed at the rear of the top panel
200, with one of the attachment flanges of the member 290 being
secured by means of nuts and bolts to the top panel 200 at the rear
margin thereof. There is also provided a rear panel 310 having a
rectangular shape but with one corner thereof sliced off so as to
conform to the shape of a cross section of the cargo container 50
laterally therethrough. The rear panel 310 is disposed against the
rear base frame member (not shown), against the corner frame
members 250, 260, and 270, and against the top frame member 290.
The rear panel 310 is secured to said last-mentioned frame members
by means of nuts and bolts. If desired, the rear panel 310 could be
a removable door such as the door 450 presently to be
described.
What has been described thus far is a cargo container of
exceptionally strong construction by virtue of the body of rigid
cellular construction in each of the panels, yet lightweight, due
to the panels being constructed preferably of aluminum. Without
sacrificing any loss in strength, the cargo container 50 can be
completely disassembled within a very short period of time because
all of the panels are secured to the frame members by nuts and
bolts which can easily be removed. There are a number of desirable
ramifications of this feature. For example, if one panel becomes
damaged at a point far removed from the situs of the manufacturing
facility of the cargo container 50, the user merely calls the
manufacturing facility and asks that the panel or the frame member
which has become damaged be shipped out immediately to the place
where it is needed. Since the replacement part is relatively small
and consumes a small amount of space, it can find room to be
transported with very short notice. Also the manufacturer of the
cargo containers can ship them in a knockdown condition, thereby
utilizing less space on the vehicle used to transport them and
accordingly reducing the manufacturer's cost.
To strengthen the cargo container 50, there is shown, in FIGS. 1,
2, and 4, a rigidifying panel 320, including a pair of spaced-apart
sheet metal walls 321 and 322 and a filler 323 in the form of a
body of rigid cellular construction between the walls 321 and 322
and secured thereto by means of epoxy as previously described with
reference to others of the panels in the cargo container 50. There
is also provided spacer structure 324 around the periphery of the
filler 323 (see FIG. 10). The rigidifying panel 320 is in the form
of a rectangle, but with one corner thereof sliced away.
As shown in more detail in FIG. 5, to mount the rigidifying panel
320 centrally within the cargo container 50, there is provided a
bracket 325, the bracket 325 including a generally vertically
extending attachment flange 326 which, in turn, carries a pair of
spaced-apart substantially parallel side attachment flanges 327
extending upwardly and outwardly from the attachment flange 326.
The side attachment flanges 327 respectively carry a pair of
attachment flanges 328 lying in the same plane and inclined with
respect to the attachment flange 326. There are provided bolts 330
that pass through openings in the upstanding flange 83 of the side
base frame member 80 and engage nuts 329 to mount the bracket 325
on the frame member 80. The bolts 146, in addition to passing
through the upturned flange 85 of the side base frame member 80 and
through the side panel 140, also pass through the inclined
attachment flanges 328 and engage the nuts 145. Also, bolts 321
pass through the side attachment flanges 327 and through the
portion of the rigidifying panel 320 disposed therebetween and
engage nuts 332, thereby to interconnect the rigidifying panel 320,
the side panel 140, and the frame member 80.
There is also provided a second bracket 335 including an attachment
flange 336 having the shape of a flattened V, the attachment flange
336 carrying thereon further attachment flanges 337 and 338. The
bolts 167, in addition to passing through the connecting frame
member 160 and through the panel 140, also pass through the
attachment flange 337 and engage the nuts 166. Similarly, the bolts
169, in addition to passing through the connecting frame member 160
and the side panel 150 also pass through the attachment flange 338
and engage the nuts 168. There is provided adjacent to the opposite
wall 322 of the rigidifying panel 320 a bracket (not shown) like
the bracket 335 and aligned therewith. A plurality of bolts 339
passes through the attachment flange 336 and the attachment flange
on the opposing bracket (not shown) and through the rigidifying
panel 320 disposed therebetween, and respectively engages a
plurality of nuts (not shown), thereby to interconnect the
rigidifying panel 320 with the slanting side panel 140 and the
vertical side panel 150.
There is also provided a third bracket 340 including an attachment
flange 341 having a generally square shape but with a corner
thereof sliced off, the attachment flange 341 carrying thereon
attachment flanges 342 and 343 disposed in planes directed
generally normal to each other. The bolts 207 pass, not only
through the attachment flange 173 and the top panel 200, but also
through the attachment flange 343 and engage the nuts 206.
Similarly, the bolts 176 pass, not only through the attachment
flange 174 and through the side panel 150, but also through the
attachment flange 342. It is to be understood that a bracket (not
shown) similar to the bracket 340 is disposed on the opposite wall
322 of the rigidifying panel 320 and aligned with the bracket 340.
A plurality of bolts 344 passes through the attachment flange 341
and the corresponding attachment flange on the opposing bracket
(not shown) and through the rigidifying panel 320 and engages in
nuts on the opposite side, thereby to interconnect the rigidifying
panel 320 with the frame member 170, the side panel 150, and the
top panel 200.
Referring now to FIGS. 1, 6 and 7, further details of the means for
strengthening the cargo container 50 will be described. There is
provided an elongated T-shaped side stiffener 350 including a
mounting flange 351 and a platelike rib 352 directed normally
thereto. The rib 352 is cut out adjacent to the bottom thereof,
indicated by the reference numeral 353. The T-shaped side stiffener
350 is mounted in the container with the mounting flange 351
disposed against the wall 182 of the panel 180 approximately
centrally thereof. The bolts 186 extend not only through the flange
105 and through the panel 180 but also through the mounting flange
351 and respectively engage nuts 185. Similarly, the bolts 196 pass
not only through the flange 194 and the panel 180, but also through
the mounting flange 351 adjacent to the top thereof and
respectively engage the nuts 195. It is to be understood that there
are similar nuts and bolts toward the rear side of the platelike
rib 352 extending into the mounting flange 351. In addition there
are provided bolts 356 that pass through the flange 351 and engage
in nuts imbedded in the panel 180 so as to be hidden from view.
There is further provided an L-shaped bracket 360 disposed on both
sides of the platelike rib 352 (only the front bracket 360 is
shown), the bracket 360 including a pair of attachment flanges 361
and 362. The flange 362 is attached to the upstanding flange 103 of
the side base frame member 100 by means of a bolt 364 and a nut
363. The attachment flange 361 of each of the brackets 360 is
attached to the platelike rib 352 also by means of nuts and
bolts.
Referring now to FIGS. 6 to 10, the cargo container 50 also
comprises a front elongated L-shaped top stiffener including an
attachment flange 371 and a platelike nut 372 disposed normal
thereto. The attachment flange 371 is joined to the top panel 200
by means of bolts 373, engaging in nuts imbedded in the top panel
200 so as to be hidden from view.
There is also provided a rear elongated L-shaped top stiffener 380
including an attachment flange 381 and a platelike rib 382 disposed
normally thereto. The attachment flange 381 is joined to the top
panel 200 by means of bolts 383 threaded into nuts imbedded into
the top panel 200 so as to be hidden from view. The top stiffeners
370 and 380 extend from adjacent to the top frame member 190 to the
upper right-hand (as viewed in FIG. 8) corner of the rigidifying
panel 320, the forward top stiffener 370 being disposed against the
forward side of the T-shaped side stiffener 350 and on the forward
side of the rigidifying panel 320, and the rear top stiffener 380
being disposed against the rear of the T-shaped side stiffener 350
and against the rear side of the rigidifying panel 320.
For connecting the stiffeners 370 and 380 to the rigidifying panel
320, there is provided a splice plate 390 including an attachment
flange 391 and an offset flange 392. Also, there is provided a
splice plate 400 including an attachment flange 401 and offset
flange 402. A pair of bolts 405 extends through openings in the
attachment flanges 391 and 401 and in the rigidifying panel 320 and
engage nuts 404. Also there are provided bolts 407 passing the
offset flanges 392 and 402, through the platelike ribs 372 and 382
and through the rigidifying panel 320 and engage the nuts 408,
thereby to interconnect the L-shaped top stiffeners 370 and 380 and
the rigidifying panel 320. There may also be provided a spacer 410
disposed between the ribs 372 and 382. A bolt 412 passes through
the ribs 372 and 382 and through the spacer 410 and engages the nut
411. The thicknesses of the spacer 410 and the rigidifying panel
320 and the side stiffener 350 are the same so that tightening of
the various nuts and bolts as described does not distort any of the
members.
Accordingly, the rigidifying panel 320 is firmly attached to the
top panel 200, to the vertical side panel 150 and to the sloping
side panel 140. The side stiffener 350 is secured to the vertical
side panel 180, and the L-shaped top stiffeners 370 and 380 are
secured to each other, to the T-shaped side stiffener 350, to the
top panel 200 and to the rigidifying panel 320. It may be seen
that, with a minimum quantity of metal, an exceptionally strong
container has been provided by reason of this rigidifying and
stiffening structure. Like the outside panels and the associated
frame members, the parts of the rigidifying and stiffening
structure are also easily detachable from each other and from the
other panels and frame members of the cargo container 50.
As previously described, the left side base frame member 80, the
right side base frame member 100, the front end base frame member
120, and the rear end base frame member (not shown) do not extend
to the corners of the base panel 70. To fill the gaps thereby
created at the corners of the base panel 70, there is provided a
set of four V-shaped corner bumpers 420, 430, 431 and 432. Each of
the four bumpers has the same structure, whereby, in the interest
of brevity, only the corner bumper 420 disposed at the forward
left-hand corner (as viewed in FIG. 1) of the cargo container 50
will be described. Referring to FIGS. 14 and 15, the corner bumper
420 includes a pair of legs 421 and 422 diverging from each other
at an obtuse angle and merging into a curved apex 423. Preferably,
each corner bumper 420 is formed of an aluminum extrusion. The
corner bumper 420 includes a body portion 425 having a curved outer
surface 426 conforming in shape to the curved surface of the
adjacent side bumper or end bumper, as the case may be. Depending
inwardly upon the body portion 425 is an attachment flange 427, the
body portion 425 carrying thereon an upstanding flange 428 which,
in turn, carries an out-turned flange 429.
As is most clearly shown in FIG. 11, the corner bumper 420 is so
positioned and placed that the curved outer surface 426 on the leg
421 forms a continuation of the curved outer surface 137 of the
front end bumper 135, and the curved surface 426 of the leg 422
forms a continuation of the curved outer surface 97 of the left
side bumper 95. The attachment flange 427 is disposed against the
wall 72 of the base panel 70 and is removably connected thereto by
means of bolts 433 (FIG. 12) extending through the attachment
flange 427 and engaging in the nuts 77 in the channel-shaped spacer
structure 74.
The corner bumper 420 is joined to the adjacent portion of the
front end base frame member 120 by means of a splice plate 440.
Bolts 441 pass through the upstanding flange 428 in the leg 421 and
through one portion of the splice plate 440 and respectively engage
nuts 442. Additional bolts 441 pass through the upstanding flange
123 of the front end base frame member 120 and through another
portion of the splice plate 440, thereby securely to attach the
corner bumper 420 to the front end base frame member 120. As
previously described, the channel-shaped portion 124 continues to
the corners of the container 50, the corner bumper 420 being
connected to the channel-shaped portion 124 by means of bolts 448
extending through the lip 125b and through the out-turned flange
429 and engaging nuts 449.
The corner bumper 420 is joined to the adjacent portion of the left
side base frame member 80 by means of a splice plate 445. Bolts
(not shown) pass through the upstanding flange 428 in the leg 422
and through one portion of the splice plate 445 and respectively
engage nuts (not shown). Additional bolts (not shown) pass through
the upstanding flange 83 of the left side base frame member 80 and
through another portion of the splice plate 445, thereby securely
to attach the corner bumper 420 to the left side base frame member
80. It is to be understood that the corner bumpers 430, 431, and
432, respectively mounted on the other three corners of the base
panel 70, have the same construction as the corner bumper 420 and
are respectively secured to the adjacent frame members in much the
same way.
Because the legs of each of the corner bumpers diverge at an obtuse
angle, the distance between the apex 423 of the corner bumper 420
and the apex of the corner bumper 430 (and the distance between the
apexes of the corner bumpers 431 and 432) is less than the
corresponding distance between the left side bumper 95 and the
right side bumper 115. Also, the distance between the apex 423 of
the corner bumper 420 and the apex of the corner bumper 432 (and
the distance between the apexes of the corner bumpers 430 and 431)
is less than the distance between the front end bumper 135 and the
rear end bumper (not shown). The fact that the corners are closer
together than the side facilitates moving the container 50
about.
The corner bumpers 420, 430, 431, and 432, the side bumpers 95 and
115, and the end bumpers 135 (only one is shown) define a
continuous bumper extending around the periphery of the base panel
70 to protect it and the cargo container 50 from damage as the
container is being moved about. From time to time, therefore, the
corner bumpers 420, 430, 431, and 432 may become damaged or worn
out and require replacement thereof. To this end, the corner
bumpers 420, 430, 431, and 432 are readily detachable by loosening
the bolts associated with the splice plates.
Referring now to FIGS. 1, 16, and 17, details of the door 450 will
be described. The door 450 includes a pair of spaced-apart
generally rectangular sheet metal walls 451 and 452 disposed
generally parallel to each other and a filler 453 in the form of a
body of rigid cellular construction disposed between the walls 451
and 452 and secured thereto. There is provided spacer structure 454
(see FIG. 19) adjacent to the bottom of the door 450 and disposed
between the walls 451 and 452 and secured thereto. There may also
be provided spacer structure (not shown) between the walls 451 and
452 adjacent to the sides thereof.
To mount the door 450 in the cargo container 50, there is provided
a hinge mechanism 460 including an integral generally F-shaped door
support 461 including an attachment portion 462, a retaining
portion 463 depending therefrom and a guide portion 466 extending
from the attachment portion 462 and away from the retaining portion
463. The retaining portion 463 has an arcuate outer retaining
surface 464 that faces toward the interior of the container 50. The
guide portion 466 has an inner retaining surface 467 that faces
toward the exterior of the container 50, the outer retaining
surface 464 being a continuation of the inner retaining surface 467
and in facing relationship therewith to define a groove 468
therebetween. The guide portion 466 finally includes a guide
surface 469 disposed toward the outer retaining surface 464 and
being a continuation of the inner retaining surface 467. The
attachment portion 462 is disposed between the walls 201 and 202 of
the top panel 200 adjacent to the forward ends thereof, the
attachment portion 462 being secured therein by means of epoxy.
With the attachment portion 462 so mounted, the retaining portion
463 extends downwardly into the door-receiving opening 458 and the
guide portion 466 extending downwardly and inwardly of the
door-receiving opening 458. It is to be understood that the door
support 461 extends from one side of the door-receiving opening 458
to the other side thereof. The extremity of the retaining portion
463 is partly bounded by an inwardly facing arcuate convex pivot
surface 465.
The hinge mechanism 460 further includes a hanger 480 having an
attachment portion 481 disposed between the walls 451 and 452 of
the door 450 and secured thereto. The hanger 480 also includes a
tongue 482 having an arcuate outer bearing surface 483 facing
toward the exterior of the cargo container 50 and an inner bearing
surface 484 facing toward the interior of the cargo container 50.
The portion of the hanger 480 between the tongue 482 and the
attachment portion 481 is in part bounded by an outwardly facing
concave pivot surface 485. The hanger finally includes an outwardly
directed guide surface 487 that is a continuation of the concave
surface 485. It is to be understood that in the preferred
embodiment the inner bearing surface 484 and the concave pivot
surface 485 are each arcuate. In addition, the outer bearing
surface 483 is a continuation of the inner bearing surface 484 and
the concave pivot surface 485 is a continuation of the outer
bearing surface 483.
In the closed position of the door 450, the tongue 482 is disposed
in the groove 468 with the outer bearing surface 483 in facing
relationship with the outer retaining surface 464 and with the
inner bearing surface 484 in facing relationship with the inner
retaining surface 467 of the door support 461. It can be
appreciated that, if the opposite end of the door 450 is locked or
latched onto the cargo container 50, the door 450 will be held in
place by virtue of the above-described hinge mechanism 460. When it
is desired to remove the door 450, the latching mechanisms will be
unlatched, the construction of which will be explained in detail
hereinafter, and the door 450 is rotated while maintaining the
concave pivot surface 485 in abutting relationship with the convex
pivot surface 465 permitting the tongue 482 to be moved out of the
groove 468 followed by removal of the door 450 from the
door-receiving opening 458.
The guide portion 466, in addition to precluding movement of the
door 450 when in the locked position thereof, also serves as a
guide for repositioning the door 450 into the door-receiving
opening 458. When the door 450 is to be replaced in the
door-receiving opening 458, the operator merely positions the door
450 such that the tongue 482 is placed in contact with the guide
surface 469 adjacent to the lower end thereof and such that the
guide surface 487 is disposed in contact with the convex pivot
surface 465. The operator then moves the door 450 such that the
tongue 482 moves along the guide surface 469 into the groove 468.
Also the guide surface 487 moves along the convex pivot surface 465
until the pivot surfaces 465 and 485 are in abutting
relationship.
An important feature of the hinge mechanism 460 is the fact that
the door 450 can be completely removed from the container 50 so as
to permit unobstructed loading and removal of cargo stored therein.
Another advantage of the above-described construction resides in
the fact that any tendency of the door 450 to rotate about the
longitudinal axis of the tongue 482 while the door 450 is locked is
precluded because of the abutting relationship of the pivot
surfaces 465 and 485. Any tendency of the door 450 to rotate while
closed could cause bowing or distortion of the door 450 in response
to forces tending to open the door.
It is to be understood that, although the rear panel 310 is shown
to be readily detachably connected to the adjacent frame members,
it can define a door having the same construction as the door 450.
In such case, the rear panel 310 would be mounted by means of a
hinge mechanism like the hinge mechanism 460 so that such rear
panel 310 would be readily removable from the container 50.
As shown in FIG. 1, the door 450 is hinged adjacent to the top
thereof and a plurality of latching mechanisms 500 are located at
spaced-apart points on the door 450 adjacent to the three free
edges thereof, seven such latching mechanisms being shown in the
embodiment of FIG. 1.
Referring now to FIGS. 18 through 20, the details of one of the
latching mechanisms 500 will be described. It is to be understood
that all seven latching mechanisms 500 are identical to one
another, whereby the ensuing description with respect to one of
them is equally applicable to each of them. The latching mechanism
500 includes a housing 510 including a lip 511 defining the
periphery of the housing 510 and having a generally keyhole-shaped
outline. The housing 510 includes an inwardly offset wall 512
located adjacent to one end of the housing 510 and merging into an
inwardly sloping wall 513 and then to the lip 511 by means of an
outwardly sloping wall 514. The housing 510 further includes a rear
wall 515 spaced rearwardly from the inwardly offset wall 512 and
disposed generally parallel thereto and spaced therefrom by means
of connecting walls 516 (only one is shown), thus to define a
compartment 517 between the walls 512, 515 and 516.
The latching mechanism 500 also includes a latch 520 located in the
compartment 517 and against the rear wall 515 and rotatably mounted
in the housing 510 by means of a gudgeon 521 fixedly secured to the
latch 520 and rotatably journaled into the walls 512 and 515. There
is also provided a driven gear 524 having gear teeth 525 and partly
disposed in the compartment 517, the gear 524 being drivingly
connected to the latch 520 for imparting rotation thereto by virtue
of its being fixedly mounted onto the gudgeon 521.
The latching mechanism 500 also includes a driving gear 526
disposed in the compartment 517 and fixedly mounted onto a gudgeon
528 that is rotatably journaled into the walls 512 and 515. The
driving gear 526 is drivingly connected to the driven gear 524 for
imparting rotation thereto by virtue of the gear teeth 527 of the
driving gear 526 being meshed with the gear teeth 525 and the
driven gear 524.
The latching mechanism 500 finally includes a handle 530 including
an arm 531 connected to the gudgeon 528 by means of a transverse
pin 532. The arm 531 is connected adjacent to the other end thereof
to a knob 533 rotatably mounted thereon so that the user in
rotating the handle 530 rotates the knob 533 independently of the
arm 531 to facilitate rotating of the handle 530. The pin 532
provides a driving connection between the handle 530 and the
driving gear 526 so that rotation of the handle 530 rotates the
driving gear 526 which in turn rotates the driven gear 524 which in
turn rotates the latch 520. In addition, the handle 530 is
pivotally movable about the pin 532 in the direction of the axis of
the gudgeon 528 toward and away from the housing 510, whereby the
handle 530 is pivotal between an inner storage position disposed in
a recess 518 represented by the handle 530 shown in solid lines,
whereby the handle 530 is relatively inaccessible to a user. By
grasping the handle 530, it may be moved to an outer operating
position indicated by the phantom lines wherein the handle 530 is
disposed out of the recess 518 and is accessible to a user to
permit subsequent rotation thereof to move the latch 520.
The latching mechanism 500 is disposed in a door opening with
reinforcing structure 456 therearound. The lip 511 is secured to
the wall 451 of the door 450 thus to secure the latching mechanism
500 in place. The latch 520 will be disposed slightly to the rear
of the keeper surface 223 of the corner frame member 220. It is to
be understood that the latching mechanisms 500 disposed adjacent to
the corner frame members 230 and 240 will engage similar keeper
surfaces disposed thereon. On the other hand, the three latching
mechanisms 500 disposed adjacent to the bottom of the door 450 will
engage the rear surface of the upstanding flange 123 of the front
end base frame member 120 (see FIG. 13).
In operation, the latch mechanism has a latching position wherein
the latch 520 engages the keeper surface 223, and the handle 530 is
in the position pointing to the designation "LOCK," which position
is indicated by the solid lines in FIG. 18. The latching mechanism
also has an inner storage position wherein the handle 530 is
disposed in the recess 518. If it is desired to open the door 450,
the user grasps the handle 530 and pivots it about the pin 532 to
move the handle 530 from the inner storage position to an outer
operating position wherein the handle is disposed out of the recess
518. The user then rotates the handle 530 in the clockwise
direction which rotates the driving gear 526 in the direction of
the arrow 540 which, in turn, imparts rotation to the driven gear
524 in the direction of the arrow 541 which in turn moves the latch
520 in the direction of the arrow 542. When the handle 530 reaches
the position pointing to the designation "OPEN," which, in turn, is
indicated by the broken lines in FIG. 18, the handle has traversed
about 340.degree. and the latch 520 disengages the keeper surface
223 to unlock the door 450. The operator then pushes the handle 530
back into the recess 518 to the inner storage position thereof.
This operation is carried out for each of the seven latching
mechanisms whereupon the door 450 is unlocked and can be pivoted as
previously described and pulled out of the door-receiving opening
458 of the cargo container 50.
To replace the door 450, the hanger 480 of the hinge mechanism 460
is inserted into the door support 461 as previously described and
each of the latching mechanisms 500 is then locked by first pulling
the handle 530 out from the inner storage position thereof into the
outer operating position thereof, followed by rotation of the
handle 530 in the counterclockwise direction thereof, as viewed in
FIG. 18, to move the latch 520 from the release position thereof
into the latching position thereof.
By constructing the gears 524 and 526 such that the gear ratio of
the former to the latter is substantially greater than 1:1 and
preferably on the order of 4:1, the user must impart a substantial
rotation to the handle 530 to rotate the latch 520 from the
latching position thereof to the release position thereof. This is
a desirable aspect since the cargo container 50 is used in an
airplane where an unwanted opening during flight would of course
damage the contents of the container. An airplane is always
susceptible to a good deal of jostling during landing, takeoff and
often during the actual flight. Any of these occurrences could of
course cause unwanted opening of the container 50. Because the
handle 530 must be rotated a substantial amount, on the order from
300.degree. to 360.degree., the chance of such inadvertent rotation
of the handle is far less likely to move the latch 520 from the
latching position to the release position thereof. Further, because
the handle 530 is normally in the storage position thereof, the
handle 530 itself is relatively inaccessible so that the chances of
inadvertently rotating the handle 530 is also reduced. The
combination of these two features, make it extremely unlikely that
any unwanted opening of the container 50 could occur.
To minimize side-to-side movement of the door 450 when the door 450
is in the locked position thereof, there is provided an integral
elongated restraining member 550 extending along the lower edge of
the door 450. The restraining member 550 includes an attachment
flange 551 secured to the wall 452 and an inturned lip 552 defining
an abutment surface 553 facing toward the opposite side of the door
450. When the door 450 is in the closed position thereof, the
inturned lip 552 is disposed immediately adjacent to the out-turned
lip 224 and the abutment surfaces 553 and 225 are in facing
relationship. Any tendency of the door 450 to move from side to
side will cause the abutment surfaces 553 and 225 to engage thereby
preventing such movement.
The elongated restraining member is disposed around the entire free
margin of the door 450, whereby when the door is closed, one
portion of the lip 552 will be disposed immediately adjacent to the
out-turned lip (not shown) of the left-hand corner frame member 230
and inwardly thereof. Another portion of the lip 552 is disposed
immediately adjacent to the out-turned lip (not shown) on the right
corner frame member and inwardly thereof. The restraining member
550 also has a portion thereof located at the bottom of the door
450 and, as shown in FIG. 13, has the lip 552 thereof disposed
immediately beneath the out-turned lip 125a of the front end base
frame member 120, with the abutment surfaces 126 and 553 being in
facing relationship to limit vertical movement of the door 450 in
the closed position thereof. By virtue of the elongated restraining
member 550 extending around the free margin of the door 450 and the
cooperation therewith of the frame members 120, 220, 230 and 240,
movement of the door 450 in the plane thereof is prevented when the
door is closed.
The container 50 further comprises an elongated gasket 560, the
construction of which is best shown in FIG. 21. The gasket 560
includes an elongated substantially flat attachment portion 561 and
a hollow crescent-shaped portion 562 integral with the attachment
portion 561. The crescent-shaped portion includes an outer curved
longer resilient segment 563 and an inner curved shorter resilient
segment 564. Disposed on the outer surface of the outer curved
resilient segment 563 is a plurality of projections 565. As shown
in FIG. 19, the gasket 560 is positioned within the channel-shaped
portion 222 of the slanting corner frame member 220, with the
attachment portion 561 being connected in the portion 222 by means
of a connector element 566. The gasket 560 is also disposed in
channel-shaped portions (not shown) of the corner frame members 230
and 240. In addition, as is best shown in FIG. 13, the gasket is
also disposed in the channel-shaped portion 124 of the front end
base frame member 120 and secured thereto.
In the closed position of the door, the attachment portion 551 of
the restraining member 550 engages the outer surface of the outer
curved resilient segment 563 of the gasket 560 and flattens it and
the inner curved segment 564 against the attachment portion 561.
The resiliency in the segments 563 and 564 urge the door 450
outwardly but such movement is precluded by virtue of the latching
mechanisms 500 being in the latching positions thereof. The
resiliency in the gasket 560 provides a good seal for the door 450
to prevent seepage of moisture into the container 50.
As can be seen in FIG. 1, there is provided a pair of handle
assemblies 580 mounted on the door 450 to be grasped by a user to
move the door 450 out of the door-receiving opening 458 after the
latching mechanisms 500 have been placed in their release
positions. Each of the handle assemblies 580 are identical, whereby
only one will be described. The handle assembly 580 is more clearly
shown in FIGS. 22 and 23, and is shown to include a casing 581
having a generally rectangular outline. The casing includes a lip
582 around the periphery of the casing 581 and a rear wall 583
disposed rearwardly of the lip 582 to define a recess 584. The
handle assembly 580 also includes a clip 586 having a pair of
attachment flanges 587 respectively attached to the casing 581 and
bent to define a socket 588. The casing 581 also has the rear wall
583 struck out to define two venting ports 589. There is also
provided a handle 590 in the form of a rectangular loop, one leg of
the loop having a rubber sleeve 591 thereon to be grasped by a
user. The opposite leg of the handle is located in the socket 588
and is pivotal therein between a storage position wherein the
handle 590 is disposed in the recess 584 and an outer operating
position wherein the handle 590 is disposed out of the recess 584.
The handle assembly 580 is positioned within an opening provided
therefor in the door 450 with the lip 582 disposed against the
outer wall 451 of the door 450 and secured thereto. The venting
ports 589 permit equalization of the inside of the cargo container
50 with the atmosphere.
There also is provided a pair of handle assemblies 600 mounted in
the side panel 150 for use in moving the container 50 around. The
handle assembly 600 has a construction identical to the
construction of the handle assemblies 580, whereby further
description of these handle assemblies is unnecessary.
In order to prevent the cargo in the cargo container 50 from moving
around therein during transportation thereof, there is provided a
plurality of tiedown mechanisms 610 mounted in the container 50 on
the base panel 70 at various points around the periphery thereof.
Each of the tiedown mechanisms 610 includes a base 611 movably
supporting thereon a wire loop 612. The base 611 includes two
openings therein for receiving therethrough bolts 114 for engaging
the nuts 77. There are also provided openings in the base 611
through which pass bolts 614 engaging what are referred to as
"potted-in-place" inserts 613. The inserts 613 are disposed in a
cavity formed in the base panel 70 and are held therein by means of
an epoxy 615. In use, ropes are passed around the cargo contained
in the cargo container 50 and threaded through the loop 612 of each
of the tiedown mechanisms 610 and tied in place so as to preclude
the cargo from moving about during transportation of the container
50.
There is also provided a tag holder 620 for carrying a destination
tag 627 indicating where the particular cargo container 50 is
bound.
In use, the cargo containers 50 are brought to the entrance of the
airplane 60 and moved onto a ball transfer mat consisting of a
multiplicity of balls defining a ball bearing surface. The
containers 50 are moved on the ball bearing surface so as to orient
them and align them into two longitudinally extending side-by-side
rows, the sloping side panel 140 of each of the containers
accommodating the curvature of the airplane fuselage 61. Because
the containers 50 are moved on a ball transfer mat, the fact that
no connections are made on the bottom wall 71 of the base panel 70
is highly desirable as there are no obstructions to free movement
of the containers. After all the containers are positioned at the
desired locations, the fingers 68 of locking mechanisms 67 disposed
at various points on the lower deck 66, are swiveled so as to
engage the engagement surface of the adjacent base frame member and
tightened to hold the cargo container 50 to prevent movement
thereof. When the airplane 60 reaches its destination, the
containers 50 are rolled out of the airplane and brought to a
convenient location in the airport, and the doors 450 are removed
to permit the cargo to be conveniently removed from the
containers.
In an operating form of the invention, each of the panels 70, 140,
150, 180, 200, 310, 320, and the door 450 had walls formed of
aluminum sheet such as that sold under the designation 7075-T6
Alclad; the outside wall of each of the panels except the base
panel 70 had a thickness of 0.012 inches; the inside wall of each
of the panels except the base panel 70 had a thickness of 0.012
inches; the walls of the base panel 70 had a thickness of 0.04
inches; the filler in each of the panels other than the base panel
70 was an aluminum honeycomb construction having a 3/16-inch cell
size and a 3.1 lb. per cu. ft. density, with a thickness of between
0.222 inches and 0.472 inches depending on the particular panel;
the filler in the base panel 70 was an aluminum honeycomb
construction having a 1/8-inch cell size and an 8.1 lb. per cu. ft.
density with a thickness of 0.545 inches; the fillers were joined
to the walls of the associated panel by the use of an epoxy having
a density of 0.06 lb. per sq. ft. in the base panel 70 and 0.03 lb.
per sq. ft. in all the other panels; each of the frame members were
formed of an aluminum extrusion composed of an aluminum alloy sold
under the designation 606-T6 and having a yield strength of about
35,000 lbs. per sq. inch; the T-shaped side stiffener 350 and the
L-shaped top stiffeners 370 and 380 were each aluminum alloy
extrusions sold under the designation 7075-T6; the side, end, and
corner bumpers were formed of aluminum alloy extrusions sold under
the designation 7075-T6; the gear ratio of the driven gear 524 to
the driving gear 526 was 4:1; the handle 530 had to be rotated
approximately 340.degree. to release the latching mechanism 500;
the gasket 560 was formed of neoprene.
There is illustrated in FIG. 25 a baggage container 750 made in
accordance with another embodiment of the present invention. The
baggage container 750 has the same basic exterior construction as
the cargo container 50 and in order to show correspondence of parts
therebetween, the parts of the baggage container 750 are indicated
by the same reference numerals used with respect to the
corresponding parts in the cargo container 50, but with a factor of
700 added thereto. More specifically, the baggage container 750
comprises a base panel 770 having side base frame members 780 and
800 respectively secured to the sides thereof, a front end base
frame member 820 secured to the front thereof and a rear base frame
member (not shown). The frame members are readily detachably
secured to the base panel 770 in the manner described with
reference to the cargo container 50. The baggage container 750, in
addition, includes corner frame members 920, 930, 940, 950 and 960;
and the side panels 840, 850, and 880 respectively readily
detachably connected to the corner frame members 920, 930, 940,
950, and 960 and the base frame members 780, 800, and 820. There
are also provided top frame members 870, 890, and 990 and a top
panel 900 removably attached thereto. The rear panel 1010 in this
embodiment is a door readily removably mounted in the container 750
by means of a hinge mechanism like the hinge mechanism 460 in the
cargo container 50, so that such rear panel 1010 is readily
removable from the container 750. Although not shown in FIG. 25,
the baggage container 750 also includes a door constructed like the
door 450 in the cargo container 50 and hingedly mounted to the
container 750 by means of a similar hinge mechanism and latched by
means of similar latching mechanisms. There is also provided a
continuous bumper surrounding the base panel 770 defined in part by
the bumpers 1132, 795, 1120, 835, and 1130.
The container 750 includes a rigidifying panel 1020 in the shape of
a rectangle with one corner sliced away. The rigidifying panel 320
is mounted centrally within the baggage container 750, with the
shorter edge thereof being disposed against the panel 850, and with
the oblique edge thereof being disposed against the slanting panel
840. The rigidifying panel 320 is secured by means of brackets
1025, 1035, and 1040 in the same way as the corresponding brackets
secure the rigidifying panel 320 in the cargo container 50. There
is also provided an elongated T-shaped side stiffener 1050 disposed
against the panel 880 and readily detachably secured thereto. There
is provided a pair of elongated spaced-apart L-shaped top
stiffeners 1070 and 1080 disposed against the inner surface of the
top panel 900 generally centrally thereof and detachably secured
thereto.
The baggage container 750 thus far described is of precisely the
same construction as the cargo container 50, and has the same
highly desirable features of being strong and durable by reason of
the panels being constructed of bodies of rigid cellular
construction. Each and every panel is readily removably attached to
the adjacent frame member so that the baggage container 750 may be
shipped in a disassembled condition and so that any one panel may
be readily removed and easily replaced.
Referring now to FIGS. 25, 27 and 29, details of the shelf mounting
structure will be described. There is provided a center shelf
bracket 1150 having an attachment flange 1151 and a support flange
1152 disposed in planes substantially normal to each other. The
attachment flange is secured to the rigidifying panel 1020 on the
front wall 1021 thereof and at a position about one-third the way
down from the top panel 900. There is also provided a center shelf
bracket 1160 having an attachment flange 1161 and a support flange
1162 disposed in planes substantially normal to each other. The
attachment flange 1161 is disposed against the wall 1022 of the
rigidifying panel 1020 in such a manner that the support flange
1162 lies in the same horizontal plane as the support flange 1152.
The attachment flanges 1151 and 1161 are readily removably attached
to the rigidifying panel 1020 by means of an insert 1165 mounted by
means of epoxy within the panel 1020. A threaded bolt 1166 passes
through aligned openings in the attachment flanges 1151 and 1161
and through the insert 1165 detachably to connect the brackets 1150
and 1160 to the rigidifying panel 1020.
There is further provided a corner shelf bracket 1170 including an
attachment flange 1171 and a support flange 1172 lying in planes
substantially normal to each other. The attachment flange 1171 is
disposed against the vertical side panel 850 and removably secured
thereto and at a vertical position thereon such that the support
flange 1172 lies in the same horizontal plane as the support
flanges 1152 and 1162. There is further provided a corner shelf
bracket 1180 including an attachment flange 1181 and a support
flange 1182 lying in planes substantially normal to each other. The
attachment flange 1181 is removably secured to the vertical side
panel 850 in a manner such that the support flange 1182 lies in the
same horizontal plane as the support flange 1152. There are
provided similar corner shelf brackets (not shown) on the opposite
vertical side panel 880 such that their support flanges also lie in
the same horizontal plane as the support flanges 1172 and 1182.
As is shown more clearly in FIG. 28, there is also provided a
plurality of intermediate supports 1190 and as more clearly shown
in FIG. 28, each intermediate support 1190 includes a cylindrical
stud 1191 having therein a slot 1192 for receiving a screwdriver to
rotate the support 1190. Formed on one end of the stud 1191 and
integral therewith is a threaded shank 1193 which engages an insert
1195 epoxied into the associated side panel 850. As shown in FIG.
25 four such intermediate supports are provided and are located on
the panel 850 such that they lie in the same horizontal plane as
the support flanges 1152, 1162, 1172 and 1182. There are provided
similar intermediate supports 1200 on the panel 880 disposed in the
same plane as the intermediate supports 1190.
The baggage container 750 further comprises a shelf 1210 including
a pair of spaced-apart generally rectangular walls 1211 and 1212
disposed generally parallel to each other. Disposed between the
walls 1211 and 1212 is a filler 1213 in the form of a body of rigid
cellular construction secured thereto. Disposed around the
periphery of the filler 1213 and secured thereto and to the walls
1211 and 1212 is spacer structure 1214 for use in reinforcing the
shelf 1210 and for mounting the same. The shelf 1210 is positioned
in the container 750 such that it rests upon the support flanges
1152, 1172 and on the support flanges on the brackets on the panel
880 and on the intermediate supports 1190 and 1200. The shelf 1210
is secured in place by means of fasteners extending through the
support flanges 1152 and 1172. There is further provided a second
shelf 1220 having the same construction as the shelf 1210, namely
including a pair of spaced-apart generally rectangular sheet metal
walls 1221 and 1222 extending generally parallel to each other.
Disposed within the walls 1221 and 1222 is a filler 1223 in the
form of a body of rigid cellular construction. A spacer structure
1224 extends around the periphery of the filler 1223 and is secured
thereto and to the walls 1221 and 1222. The shelf 1220 rests upon
the support flanges 1162 and 1182 and on the support flanges (not
shown) of the brackets on the panel 880. The shelf 1220 also rests
upon the intermediate supports 1190 and 1200.
If desired, there may be provided another shelf 1230 disposed
beneath the shelf 1210 and extending generally parallel thereto and
mounted on structure essentially the same as the shelf mounting
structure used with respect to the panel 1210. Finally, there may
be provided a shelf 1240 disposed in the same horizontal plane as
the shelf 1230 and mounted on a similar structure as are used to
mount the rest of the shelves.
To compartment the baggage container 750, there is provided an
L-shaped retaining bracket 1250 secured to the shelf 1210 adjacent
to the inner edge thereof and extending from the inner edge of the
rigidifying panel 1020 to the right side panel 880. The bracket
1250 includes a pair of attachment flanges 1251 and 1252 lying in
planes normal to each other, the attachment flange 1251 being
secured to the shelf 1210. There is provided a similar retaining
bracket (not shown) on the shelf 1220 and being spaced apart from
the retaining bracket 1250 and disposed generally parallel thereto.
In order to prevent baggage from shifting during transit, there is
provided a divider 1260 which, in the preferred form, is formed of
an expanded metal to define a mesh. The divider 1260 is disposed
between the platelike ribs of the L-shaped top stiffeners 1070 and
1080 and extends down through the retaining bracket 1250 and the
facing retaining bracket (not shown), through the space between the
shelves 1230 and 1240 upon which are mounted similar retaining
brackets and down to the base panel 770 upon which are mounted
three spaced-apart retaining brackets 1270, 1280, and 1290. The
divider 1260 extends from the rigidifying panel 1020 to the
platelike rib of the T-shaped side stiffener 1050. The divider 1260
is secured by means of fasteners extending through the attachment
flange 1251 and through the divider 1260 and through the opposing
attachment flange (not shown). Similarly, fasteners extend through
the remainder of the retaining brackets and through the divider
1260 to hold the divider in place. As is the case with the rest of
the parts of the baggage container 750, the divider 1260 and the
retaining brackets therefor are readily removable from the
container 750, so that they may be easily replaced. The divider
1260 and the rigidifying panel 1020 define a substantially
continuous wall completely separating the shelf panels 1210 and
1230 and the front portion of the base panel 770 from the shelf
panels 1200 and 1240 and the rear portion of the base panel 770 to
minimize the shifting of baggage in transit.
While there has been described what are at present considered to be
the preferred embodiments of the invention, it will be understood
that various modifications may be made therein, and it is intended
to cover in the appended claims all such modifications as fall
within the true spirit and scope of the invention.
* * * * *