U.S. patent number 3,756,469 [Application Number 05/088,391] was granted by the patent office on 1973-09-04 for convertible hopper vehicle.
This patent grant is currently assigned to Bulk Liner Corporation. Invention is credited to Edwin E. Clark, Albert J. Florig.
United States Patent |
3,756,469 |
Clark , et al. |
September 4, 1973 |
CONVERTIBLE HOPPER VEHICLE
Abstract
A carrier unit adapted to be converted into a bulk material
carrier generally including a container having a floor, the floor
having at least one floor section movable to a selected position
providing a surface inclined toward an opening in the floor formed
by the removal and positioning of the floor section into the
selected position, a pair of wall units disposed within the
container, movable between storage positions and operative
positions on opposite sides of the floor section to cooperate with
the floor section in the selected position and portions of the
interior walls of the container to define a compartment, and a
flexible liner for holding bulk material, mountable in the
compartment, the flexible enclosure having an inlet for charging
bulk material thereinto and at least one outlet cooperable with the
floor opening for communicating the interior of the flexible liner
with the exterior of the container.
Inventors: |
Clark; Edwin E. (Allentown,
PA), Florig; Albert J. (Norristown, PA) |
Assignee: |
Bulk Liner Corporation
(Allentown, PA)
|
Family
ID: |
22211103 |
Appl.
No.: |
05/088,391 |
Filed: |
November 10, 1970 |
Current U.S.
Class: |
222/105; 105/243;
222/183; 105/423; 298/24 |
Current CPC
Class: |
B65D
88/32 (20130101); B65D 90/046 (20130101); B61D
3/06 (20130101); B60P 3/42 (20130101); B65D
2590/046 (20130101) |
Current International
Class: |
B61D
3/06 (20060101); B61D 3/00 (20060101); B65D
88/00 (20060101); B65D 90/04 (20060101); B65D
88/32 (20060101); B61d 003/06 (); B61d 007/32 ();
B61d 017/18 () |
Field of
Search: |
;105/239,243,358,360,423
;298/7,30,8H,24 ;222/105,183,193 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Forlenza; Gerald M.
Assistant Examiner: Beltran; Howard
Claims
We claim:
1. A carrier unit adapted to be converted into a bulk material
carrier comprising a container having a floor, said floor having at
least one floor section movable to a selected position providing a
surface inclined toward an opening in said floor formed by the
removal and positioning of said floor section into said selected
position, at least one substantially vertically disposed wall unit
disposed within said container, movable longitudinally between a
storage position and an operative position adjacent said floor
section to cooperate with said floor section in said selected
position and portions of the interior walls of said container to
define a compartment, and a flexible liner for holding bulk
material, mountable in said compartment, said flexible liner having
an inlet for charging bulk material thereinto and at least one
outlet cooperable with said floor opening for communicating the
interior of said flexible liner with the exterior of said container
whereby when said wall unit is secured in its storage position and
said floor section remains as a floor component, said container may
be utilized to transport general cargo and when said floor section
is disposed in said selected position, said wall unit is disposed
in its operative position adjacent said floor section, and said
flexible liner is mounted within said compartment, said container
may be utilized to transport bulk material within said flexible
liner disposed within said compartment.
2. A carrier unit adapted to be carried to be converted into a bulk
material carrier according to claim 1 wherein said flexible liner
is provided with an expanded configuration adapted to conform to
the configuration of said compartment.
3. A carrier unit adapted to be converted into a bulk material
carrier according to claim 1 wherein said container includes a
hopper communicable with the interior of said compartment.
4. A carrier unit adapted to be converted into a bulk material
carrier according to claim 3 wherein said flexible liner is
provided with a portion extendable through said floor opening into
said hopper, which includes said outlet.
5. A carrier unit adapted to be converted into a bulk material
carrier according to claim 1 wherein said container is supported on
at least one wheel unit.
6. A carrier unit adapted to be converted into a bulk material
carrier according to claim 1 wherein flexible liner is supported on
carrier means movable selectively into a storage position in said
container and an operable position within said compartment.
7. A carrier unit adapted to be converted into a bulk material
carrier according to claim 1 wherein said container includes a
hopper communicable with the interior of said compartment, and
wherein said flexible liner is supported on carrier means movable
selectively into a storage position in said container and an
operative position within said compartment, said flexible liner has
an expanded configuration adapted to conform to the interior
configuration of said compartment, and said flexible liner is
provided with a portion extendable through said floor opening into
said hopper, which includes said outlet.
8. A carrier unit adapted to be converted into a bulk material
carrier according to claim 7 wherein said container is supported on
at least one wheel unit.
9. A carrier unit adapted to be converted into a bulk material
carrier according to claim 1 which includes two wall units movable
longitudinally between storage positions and operative positions
adjacent said floor section to cooperate with said floor section in
said selected position and portions of the interior walls of said
container to define said compartment.
10. A carrier unit adapted to be converted into a bulk material
carrier according to claim 9 wherein said flexible liner is
supported on carrier means and is disposed between said wall
units.
11. A carrier unit adapted to be converted into a bulk material
carrier comprising a container including a floor, a pair of opposed
side walls and end walls, at least one pair of floor sections
hingedly connected to said floor and swingable laterally so that
the longitudinal free edges thereof engage and rest againt said
side walls to provide a pair of opposed surfaces inclined toward an
opening formed upon swinging said floor sections laterally into
engagement with said side walls, a pair of substantially vertically
disposed wall units movable longitudinally from a storage position
to positions adjacent said floor sections to provide a compartment
defined by said wall units, said floor sections in their open
positions, said side walls and said top wall, and a flexible liner
for holding bulk material, mountable in said compartment, said
flexible liner having an inlet for charging bulk material thereinto
and at least one outlet cooperable with said floor opening for
communicating the interior of said flexible liner with the exterior
of said container.
12. A carrier unit adapted to be converted into a bulk material
carrier according to claim 11 including panels disposable in said
compartment between said opened floor sections providing additional
surfaces inclined toward said opening thus defining a compartment
having a lower funnel section.
13. A carrier unit adapted to be converted into a bulk material
carrier according to claim 12 wherein said additional panels are
hingedly connected along transverse edges to said wall units and
are provided with converging side edges engageable with said floor
sections in the open positions for forming said funnel section.
14. A carrier unit adapted to be converted into a bulk material
carrier according to claim 11 wherein said flexible liner is
provided with an expanded configuration adapted to conform to the
interior configuration of said compartment.
15. A carrier unit adapted to be converted into a bulk material
carrier according to claim 11 wherein said container includes a
hopper communicable with the interior of said compartment through
said floor opening.
16. A carrier unit adapted to be converted into a bulk material
carrier according to claim 15 wherein said flexible liner is
provided with a portion extendable through said floor opening into
said hopper, which includes said outlet.
17. A carrier unit adapted to be converted into a bulk material
carrier according to claim 11 wherein said carrier is supported on
at least one wheel unit.
18. A carrier unit adapted to be converted into a bulk material
carrier according to claim 11 wherein said flexible liner is
supported on carrier means disposed between said wall units and is
movable therewith selectively into a storage position in said
container and an operable position in said compartment.
19. A carrier unit adapted to be converted into a bulk material
carrier according to claim 11 wherein said container includes a
hopper communicable with the interior of said compartment through
said floor opening, and wherein said flexible liner is supported on
carrier means disposed between said wall units and is movable
selectively into a storage position in said container and an
operable position within said compartment, said flexible liner is
provided with an expanded configuration adapted to conform to the
interior configuration of said compartment, and said flexible liner
is provided with a portion extendable through said floor opening
into said hopper, which includes said outlet.
20. A carrier unit adapted to be converted into a bulk material
carrier according to claim 19 wherein said container is supported
on at least one wheel unit.
21. A carrier unit adapted to be converted into a bulk material
carrier according to claim 11 including first means disposed within
said container for supporting said wall units and guiding said
units between said storage and operative positions, and second
means disposed within said container for supporting said liner and
guiding said liner between said storage position and said operative
position.
22. A carrier unit adapted to be converted into a bulk material
carrier according to claim 21 wherein said first means comprises a
pair of longitudinally extending, transversely spaced guide tracks
and rollers secured to said wall units supported on said guide
tracks and movable along the length thereof, and said second guide
means consists of a pair of longitudinally extending, transversely
spaced guide tracks and a plurality of transversely extending
hanger rods movable along said guide tracks on which said liner is
suspended.
Description
This invention relates to a carrier unit and more particularly to a
carrier unit normally adapted to carry general cargo which is
convertible into a bulk material carrier.
In the transportation industry, it has been the customary practice
to utilize separate types of carrier units for transporting general
cargo and bulk materials. More recently, efforts have been made to
devise multi-purpose carrier units which are adapted to carry
either general cargo or bulk material. It has been found, however,
that such convertible carrier units in the prior art have not been
entirely satisfactory from the viewpoint of simplicity, cost of
manufacture and operating performance.
Accordingly, it is the principal object of the present invention to
provide the novel carrier unit.
Another object of the present invention is to provide a novel
carrier unit which is adapted to carry either general cargo or bulk
materials.
A further object of the present invention is to provide a novel
carrier unit normally adapted to carry general cargo which is
convertible into a bulk material carrier.
A still further object of the present invention is to provide a
novel convertible carrier unit adapted to carry either general
cargo or bulk materials, which is adapted to facilitate the loading
and unloading of bulk materials.
Another object of the present invention is to provide a novel
convertible carrier unit adapted to carry either general cargo or
bulk material which is adapted to be loaded and unloaded with bulk
material by gravity feed.
A further object of the present invention is to provide a novel
convertible carrier unit for transporting either general cargo or
bulk material which can be constructed by simple modification of
conventional carrier units.
A still further object of the present invention is to provide a
novel convertible carrier unit adapted to carry exclusively general
cargo or a combination of bulk materials and general cargo.
Another object of the present invention is to provide a novel
convertible carrier unit adapted to carry general cargo, bulk
material or a combination of general cargo and bulk material which
is simple in design, comparatively inexpensive to manufacture, and
easy to convert for carrying different forms of cargo.
Other objects and advantages of the present invention will become
more apparent to those persons having ordinary skill in the art to
which the present invention pertains, from the following
description taken in conjunction with the accompanying drawings
wherein:
FIG. 1 is a perspective view of an embodiment of the invention,
having portions thereof broken away;
FIG. 2 is a vertical cross-sectional view of the embodiment
illustrated in FIG. 1;
FIG. 3 is an enlarged cross-sectional view taken along line 3,3 in
FIG. 2;
FIG. 4 is a view similar to the view shown in FIG. 3, illustrating
a component thereof in an alternate position;
FIG. 5 is a partial, longitudinal sectional view of the embodiment
illustrated in FIGS. 1 through 4, illustrating the embodiment in a
condition for receiving general cargo; and
FIG. 6 is a cross sectional view taken along line 6,6 in FIG.
5.
Briefly described, the present invention relates to a carrier unit
adapted to be converted into a bulk material carrier generally
including a container having a floor, the floor having at least one
floor section movable to a selected position providing a surface
inclined toward an opening in the floor formed by the removal and
positioning of the floor section into the selected position, at
least on wall unit disposed within the container, movable between a
storage position and an operative position adjacent to the floor
section to cooperate with the floor section in the selected
position and portions of the interior walls of the container to
define a compartment and a flexible liner for holding bulk
material, mountable in the compartment formed by the floor section,
the wall unit and the container walls, the flexible enclosure
having an inlet for charging bulk material thereinto and at least
one outlet cooperable with the floor opening for communicating the
interior of the flexible liner with the exterior of the container.
In such a structure, when the wall unit is secured in its storage
position and the floor section remains as a floor component, the
container may be utilized to transport general cargo, and when the
floor section is disposed in the selected position, the wall unit
is disposed in its operative position adjacent the floor section,
and the flexible liner is mounted within the compartment, the
container may be utilized to transport bulk material within the
flexible liner disposed within the compartment formed by the floor
section, the wall unit and the interior walls of the container.
In the preferred embodiment of the invention, a plurality of floor
sections are provided which are positionable against side walls of
the container, a pair of wall units are provided having panels
cooperating with the floor sections to form the compartment for the
flexible liner, the container is provided with at least one hopper
communicable with the interior of the compartment formed by the
movable floor sections, the wall units and the interior walls of
the container, and the flexible enclosure is provided with an
expanded configuration adapted to conform to the configuration of
the compartment, and a portion extendable through the floor opening
into the hopper, which includes the outlet thereof.
Referring to the drawings, there is illustrated an embodiment of
the invention. Generally, the embodiment includes a chassis 10, a
container 11 mounted on the chassis, a pair of wall units 12 and 13
disposed within the container and movable longitudinally thereof,
and a flexible liner 14 mounted within the container between the
wall units 12 and 13. The chassis 10 consists of an elongated frame
assembly 15 including a pair of longitudinally disposed structural
beams 16 and 17 and plurality of transversely disposed structural
members 18, supported at its rear end on a wheel unit 19, and when
not connected to a tractor unit for transit, is supported at a
point forward of the wheel unit by a pair of conventional support
legs 20 and 21. The container mounted on the frame assembly
supported on the wheel unit as illustrated, forms a trailer unit
which can be connected to a conventional tractor unit for
transporting cargo within the container. It further is
contemplated, however, that the container 11 with the wall units 12
and 13 and the flexible liner 14 disposed therein may be mounted on
a truck chassis or a rail car, or may be utilized as an independent
unit for mounting on different forms of transportation units as is
conventional in the field of containerization.
The container 11 is provided with a floor 22 rigidly secured to the
frame assembly 15 of the chassis, side walls 23 and 24, a top wall
25 and front end wall 26 providing an open rear end which may be
closed with a conventional door unit 27. The top wall 25 is formed
with a plurality of longitudinally spaced access openings 28 having
upwardly projecting, annular loading conduits 29 provided with
access doors 30.
As best illustrated in FIGS. 1 and 6, the floor 22 of the container
is provided with a plurality of floor sections 31 through 36 which
are hingedly connected along their outer edges to the floor 22 and
are swingable outwardly so that the inner edges thereof engage the
side walls 23 and 24 to provide surfaces inclined toward an opening
37 formed when the floor sections are disposed in their operative
positions as illustrated in FIGS. 1 through 4. The hinge
connections of the floor sections lie along the parallel side edges
of the opening 37, and the floor sections consist of identical
rectangular configurations so that when the floor sections are
disposed in their operative positions, the inclined surfaces
thereof lie in a pair of planes converging towards the opening
37.
Depending from the frame assembly 15 of the chassis is a plurality
of hoppers 38 which communicate at their upper ends with the
interior of the container through opening 37, and which also
communicate through lower outlet ends with a longitudinally
disposed discharge conduit 39 having a rearwardly disposed outlet
40 which may be operatively connected to a pneumatic conveying
system for unloading bulk material within the container as will
later be described.
Referring to FIGS. 1, 3 and 4, the wall unit 12 consists of a
rectangular panel member 41 mounted on a pair of spaced, vertical
peripheral frame members 42 and 43, and a pair of spaced,
horizontal peripheral frame members 44 and 45. The panel 41 is
provided with additional strength and rigidity by means of a
plurality of vertical rib members 46 through 51 which are disposed
between the peripheral frame members 41 and 43 and interconnect the
frame members 44 and 45.
The wall unit 12 is provided at the upper end thereof with a pair
of transversely spaced roller units 52 and 53 which ride on a pair
of longtiudinally disposed guide tracks 54 and 55 secured to the
top wall 25 of the container adjacent the side walls 23 and 24, for
supporting the wall unit and moving it longitudinally within the
container between a storage position as illustrated in FIGS. 5 and
6 and an operative position as illustrated in FIGS. 1 through 4.
The wall unit is maintained in the operative position adjacent the
opening 37 by means of a pair of latching bolts 56 and 57 disposed
in the frame member 45 and extendable into holes provided in the
floor 22 forward of the front end of the opening 37.
Mounted on the rear face of the wall unit 12 is a panel 58 which
may be moved between a storage position as illustrated in FIGS. 4
and 5 and an operative position as illustrated in FIGS. 1, 2 and 3.
The panel 58 is provided with an edge 59 disposed parallel to the
floor 22, which is hingedly connected to the panel 41, a pair of
parallel side edges 60 and 61 disposed adjacent the side walls 23
and 24 of the container, a pair of converging side edges 62 and 63
which are engageable with the inclined surfaces provided by the
floor sections 31 and 32 when the panel 58 and the floor sections
31 and 32 are in their operative positions as illustrated in FIG.
1, and a transverse edge 64 which is engageable with the floor 22
of the container adjacent the front edge of the opening 37 when the
panel 58 is in the operative position. The panel 58 further is
provided with a plurality of transversely spaced reinforcing ribs
65 which are receivable in vertical openings 66 in panel 41 when
the panel 58 is in the retracted storage position as illustrated in
FIG. 4.
The wall unit 13 is similar in construction to the wall unit 12 and
is movable between a storage position as illustrated in FIG. 5 and
6 and an operative position as illustrated in FIGS. 1, 2 and 3. The
wall unit 13 includes a rectangular panel 67 mounted on a pair of
transversely spaced, vertical peripheral frame members 68 and 69,
and a pair of vertically spaced, horizontal peripheral frame
members 70 and 71. In addition to the frame members 68 through 71,
the panel 67 is provided with a plurality of vertically disposed
reinforcing frame members 72 through 77 which interconnect the
peripheral frame members 70 and 71. The wall unit 13 further is
provided with a pair of roller units 78 and 79 at the upper end
thereof which ride on guide tracks 54 and 55 to support the wall
unit and permitted it to be moved between its storage and operative
positions. A pair of latch bolts 80 and 81 are provided in the
lower frame member 71 which are receivable in holes adjacent the
rear end of the opening 37 to secure the wall unit 13 in its
operative position as best illustrated in FIG. 2.
The front face of the panel 67 is provided with a hinged panel 82
which is similar in construction to the hinged panel 58 connected
to the wall unit 12. As best shown in FIG. 2, when the wall unit 13
and the panel 82 are disposed in their operative positions the free
transverse edge of the panel 82 will engage the floor 22 adjacent
the rear edge of the opening 37, and the converging side edges
thereof will engage the inclined surfaces of the floor sections 34
and 35, with the parallel side edges thereof disposed adjacent the
side walls 23 and 24 of the container. The panel 82 is movable
between an operative position as illustrated in FIG. 2 and an
inoperative or storage position as illustrated in FIG. 5.
When the floor sections 31 through 36 are in their open, operative
positions, the wall units 12 and 13 are in their operative
positions adjacent the front and rear edges of opening 37, and the
panels 58 and 82 are swung downwardly as illustrated in FIGS. 1 and
2, such components, in cooperation with portions of side walls 23
and 24, and top wall 25 of the container, define a compartment 83
having a rectangularly shaped upper section and a funnel-shaped
lower section communicating through the opening 37 with the
interior of the hoppers 38. The flexible liner 14 in its expanded
condition is provided with a configuration which substantially
conforms to the configuration to the compartment 83. More
specifically, the liner 14 includes a top panel 84 adapted to lie
adjacent the top wall 25, a side panel 85 adapted to lie adjacent
the side wall 23 and rest at its lower end on the inclined surfaces
provided by the floor sections 32, 34 and 36, a side panel 86
adapted to lie adjacent side wall 24 and rest at its lower end on
the inclined surfaces provided by the floor sections 31, 33 and 35,
a front end panel 87 adapted to lie adjacent to panel 41 of wall
unit 12 and rest at its lower end on the inclined surface provided
by the panel 58, and a rear end panel 88 adapted to lie adjacent
the panel 67 of wall unit 13 and rest at its lower end on the panel
82. The lower end of the flexible liner may simply be open to
communicate with the interior of the hoppers 38 through the opening
37 or may be provided with projecting portions extending through
the opening 37 into the hoppers 38.
The flexible liner 14 is supported within the compartment by means
of a plurality of transversely disposed hanger rods 89 which extend
through tunnel loops 90 provided on top panel 84 of the liner, each
of which are provided with rollers 91 and 92 at the ends thereof
which ride on a pair of transversely spaced guide tracks 93 and 94
disposed adjacent the guide tracks 54 and 55. The front and rear
liner panels 87 and 88 are provided with tunnel loops 93 and 94 at
the upper ends thereof which are adapted to receive therethrough
hanger rods 95 and 96 which are rigidly mounted on the upper ends
of the panels 41 and 67 of wall units 12 and 13. The side panels of
the liner further are supported by a plurality of straps 97
provided at the upper ends thereof which receive the ends of the
hanger rods 89 therethrough. The lower portions of the side and end
panels of the liner are maintained adjacent the side walls of the
container and the wall units by means of a plurality of straps 98
which may be secured to suitable hooks provided in the side walls
of the container and the panels 41 and 67 of the wall units. The
upper panel 84 of the liner also is provided with a plurality of
longitudinally spaced flexible conduit sections 99 which are
registerable with and adapted to extend into the annular loading
conduits 29 of the top wall of the container when the liner is in
its expanded condition, as illustrated in FIG. 2. Each of the
conduits is provided with an opening in the upper end thereof which
may be closed with an interlocking fastener or zipper 100.
When it is desired to utilize the carrier unit as described to
transport general cargo, the floor sections 31 through 36 are swung
downwardly into the positions as illustrated in FIG. 6, flush with
the container floor 22, to close the opening 37, the panels 58 and
82 of the wall units are swung upwardly and secured against the
panels 41 and 67, and the wall units 12 and 13 are rolled forwardly
to the positions as illustrated in FIG. 5 and secured therein by
means of the latch bolts 80 and 81 which are received in
registerable holes in the container floor, so that the flexible
liner 14 is supported from the hanger rods 89 and is disposed in
folds between the wall units. With the various components of the
carrier unit thus positioned, various types of cargo can be loaded
into the container through the rear access doors.
Whenever it is desirable, however, to convert the carrier unit for
transporting bulk material, the wall units 12 and 13 are detached
from their storage positions, moved forwardly to the positions as
illustrated in FIGS. 1 through 4, and secured therein by means of
the latch bolts 56, 57, 80 and 82. The positioning of the wall
units as described will cause the flexible liner 14 to expand so
that it will be suspended from the hanger rodds disposed adjacent
the top wall of the container, and substantially will extend from
one wall unit to the other with the conduit sections 99 being
substantially registered with the annular conduits 29. A workman
would then move the lower ends of the liner away from the side
walls and rods units and swing the floor sections 31 through 36
outwardly into their operative positions as illustrated in FIGS. 1
through 4. After the floor sections have been positioned, the
panels 58 and 82 are swung downwardly into position also as
illustrated in FIGS. 1 through 6. With the compartment 83 thus
formed, the side and end panels of the liner are secured to the
side walls of the container and the wall units by means of the
straps 98. Thus, the flexible liner will be in its expanded
condition having a configuration conforming to the configuration of
the compartment 83 with the lower open end thereof communicating
with the interior of the hoppers 38 through the opening 37. The
lower ends of the side and end panels of the liner will rest on the
floor sections 31 through 36 and the panels 58 and 82, so that the
lower end of the liner will be formed as a funnel for directing
bulk material deposited therein through the opening 37 into the
hoppers 38.
The panels 41 and 67 of the wall units are provided with doors 101
and 102 which provide access to the compartment 83 and also the
container space between the wall unit 12 and the front end wall 26.
It is contemplated that workmen assembling the unit for carrying
bulk materials will utilize such access doors to move the floor
sections 31 through 36 and the panels 58 and 82 into position and
also to position the liner and secure it to the container walls and
the wall units. The end walls of the liner also may be provided
with closable openings to permit access to the interior of the
liner so that any additional adjustments to the liner can be made.
With the components thus assembled, the workmen may then exit
through the rear opening of the container and close the rear access
doors so that the unit will be ready to be loaded with the bulk
material. This may be accomplished simply by opening the access
doors 30, reaching down and pulling the sections 99 upwardly
through the annular mountings 29, opening the sections 99 and
inserting therein a chute or conduit for loading the bulk material
into the liner. The bulk material can be loaded into the liner
either by gravity feed or by a force feed method utilizing a
pneumatic conveying system or the like. After the liner has been
fully loaded, the liner is secured and the access doors are closed
so that the carrier unit is then ready to be transported to its
destination. It will be appreciated that when the liner is loaded,
the bulk material will flow downwardly through the opening 37 into
the hoppers 38 and eventually fill the entire liner.
When the carrier unit has been moved to its destination and it is
desired to unload it, this may be accomplished simply by connecting
the discharge end 40 of the conduit 39 with a suitable conveying
system, to draw the bulk material out of the unit. It will be
appreciated that when a vacuum is applied to the conduit 39, bulk
material within the liner will be caused to move downwardly through
the hoppers 38 into the conduit 39, and be drawn outwardly through
the discharge opening 40 into the conveying system. It further will
be appreciated that the inclined surfaces provided by the floor
sections 31 through 36 and panels 58 and 82 will facilitate the
gravity flow of the material within the liner into the hoppers 38
and the conduit 39, so that all of the bulk material within the
liner will be removed quickly and efficiently.
After the bulk material has thus been unloaded and it is desired to
convert the carrier unit so that it again will be adapted to carry
general cargo, the pneumatic conveying system is detached from the
conduit 39, and workmen enter the compartment 83 through the rear
access doors of the container and access door 102 to detach the
lower ends of the liner from the container walls and the wall units
12 and 13. As soon as this has been accomplished, the workmen next
swing the panels 58 and 59 upwardly and secure them against the
panels 41 and 67, and swing the floor sections 31 through 36
downwardly to close the opening 37. The latch bolts 56, 57, 80 and
81 are then lifted to their unlatched positions, the workmen exit
through the access door 102 and then proceed to push the wall unit
13 forwardly so that the wall units with the liner disposed in
folds between them are moved to the storage position as illustrated
in FIG. 5. The latch bolts 80 and 81 are then dropped into position
to secure the wall units in the storage position. At such time, the
carrier unit will be in condition for loading general cargo in the
conventional manner.
Although it is preferred that the flexible liner 14 be permanently
installed within the container between the wall units 12 and 13, it
would be possible to utilize a removable, flexible liner or to
secure the flexible liner within the compartment in any other
suitable manner. It further is contemplated that in lieu of
providing a pair of wall units which are movable longitudinally
within the container between storage and operable positions, such
wall units may be hingedly connected to one or more walls and swung
between storage and operative positions. By way of example, the
wall units 12 and 13 could be hingedly connected to the top wall
whereby the units can be swung upwardly and secured to the top wall
for storage, and swung downwardly with the lower ends thereof
secured to the floor, into their operative positions.
Referring to FIG. 2, it will be noted that when the carrier unit is
assembled for carrying bulk material in the liner disposed within
the compartment 83, there is provided a forwardly disposed
compartment 103 between the front end wall 26 and the wall unit 12,
and a rearwardly disposed compartment 104 between the wall unit 14
and the rear access doors. It is contemplated that by providing
suitable access doors for the compartment 103, such compartments
may be utilized for carrying general cargo while bulk material is
carried in the liner within the compartment 83.
From the foregoing detailed description, it will be evident that
there are a number of changes, adaptations, and modifications of
the present invention which come within the province of those
skilled in the art. However, it is intended that all such
variations not departing from the spirit of the invention be
considered as within the scope thereof as limited solely by the
claims appended hereto.
* * * * *