U.S. patent number 3,883,005 [Application Number 05/330,710] was granted by the patent office on 1975-05-13 for transportable storage containers.
Invention is credited to Robert K. Stevens.
United States Patent |
3,883,005 |
Stevens |
May 13, 1975 |
Transportable storage containers
Abstract
Transport brackets are affixed to the container and include
provisions for achieving transportability with either a crane or a
fork lift. Variable storage capacity is provided by an extension
bin which is detachably affixed as part of the container. The top
and bottom of the container are compatibly configured to provide an
interlock between a plurality of stacked containers and a dolly is
configured for use with these interlocking provisions. The
container is configured to achieve stacking interchangeability when
any vertically peripheral sides are aligned and brackets are
disposed around the vertical periphery of the container to achieve
fork lift accessibility from any direction perpendicular to the
vertically peripheral sides.
Inventors: |
Stevens; Robert K. (Fairfield,
CT) |
Family
ID: |
23290980 |
Appl.
No.: |
05/330,710 |
Filed: |
February 8, 1973 |
Current U.S.
Class: |
280/30; 220/4.03;
294/68.21; 294/68.3; 414/785; 280/79.2 |
Current CPC
Class: |
B65D
88/30 (20130101); B65D 88/005 (20130101) |
Current International
Class: |
B65D
88/30 (20060101); B65D 88/00 (20060101); B65g
067/02 () |
Field of
Search: |
;214/1N,1D,1R,1.5R,38CA,38C,38CC,515,620,621
;294/27R,67D,67DA,67DB,67DC,69R,69A,68,DIG.1 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Werner; Frank E.
Attorney, Agent or Firm: Wooster, Davis & Cifelli
Claims
What I claim is:
1. In a container of the type used for transportable storage of
high volume parts, the improvement comprising: brackets affixed on
said container intermediate to the top and bottom thereof each said
bracket including a horizontal bearing surface for interfacing with
fork lift prongs and means for connecting to an overhead lifting
yoke, said horizontal bearing surfaces extending externally from
the horizontal extremities of said container perpendicularly to the
vertical axis thereof and being disposed on a common horizontal
plane through said container.
2. The combination of claim 1 wherein said container includes a
hopper base and extension bin, said hopper base having vertically
peripheral sides about the circumference of a top opening, said
extension bin being compatibly configured with said hopper base to
engagingly affix thereon into said top opening and being effective
to increase the storage capacity of said hopper base.
3. The combination of claim 2 wherein said extension bin includes
vertically peripheral sides structured and arranged identically to
said vertically peripheral sides on said hopper base, said sides of
said extension bin having butt straps extending therefrom, said
extension bin being affixed on said hopper base with said butt
straps engaging into said top opening thereof.
4. A container for transportable storage of high volume parts
comprising:
a hopper base having vertically peripheral sides about the
circumference of a top opening and a supporting structure for a
dischargeable hopper, said supporting structure being configured to
engage across said vertically peripheral sides at the top of said
hopper base;
an extension bin compatibly configured with said hopper base to
engagingly affix thereon into said top opening and being effective
to increase the storage capacity of said hopper base, said
extension bin including vertically peripheral sides structured and
arranged identically to said vertically peripheral sides on said
hopper base, said sides of said extension bin having butt straps
extending therefrom, said extension bin being affixable on said
hopper base with said butt straps engaging into said top opening
thereof, said vertically peripheral sides of said extension bin
circumventing a top opening therein, said container being
interlockingly stackable on other containers and other hopper bases
of identical construction with said supporting structure engaging
thereagainst to translate horizontal stress through the stacking
interface; and
brackets affixed to said container and separated thereacross at the
spacing of fork lift prongs, each said bracket including a
horizontal bearing surface for interfacing with fork lift prongs
and means for connecting to an overhead lifting yoke, said
horizontal bearing surfaces being disposed on a common horizontal
plane through said container.
5. The combination of claim 4 wherein said supporting structure
includes vertical support members extending from channel shaped
pads, said channel shaped pads being arranged to present an outer
flange and an inner flange relative to the overall thickness
projected from thereabove by said vertically peripheral side, said
outer flange being configured to overlap said vertically peripheral
side and said inner flange being notched to engage within said top
openings.
6. The combination of claim 5 wherein said container includes a
detachable dolly, said dolly having vertically peripheral sides of
identical arrangement and parameters as said vertically peripheral
sides of said hopper base, said vertically peripheral sides of said
dolly circumventing a top opening therein, said hopper base being
interlockingly affixable on said dolly with said channel shaped
pads engaging across said vertically peripheral sides thereon to
translate horizontal stress therebetween.
7. The combination of claim 1 wherein said connecting means
includes an eye bolt.
8. The combination of claim 1 wherein said connecting means
includes a vertical web, said vertical web having an aperture
therethrough.
9. The combination of claim 1 wherein said connecting means
includes a hook.
10. The combination of claim 1 wherein each said bracket includes a
length of angle stock, said angle stock having perpendicular
flanges and being disposed on said container with a flange oriented
in a horizontal plane therethrough, said connecting means being an
aperture through said horizontal flange.
11. The combination of claim 1 wherein each said bracket includes a
length of angle stock, said angle stock having perpendicular
flanges and being disposed on said container with a flange oriented
in a horizontal plane therethrough, said connecting means being a
horizontal flange section of compatible thickness to plate
grips.
12. The combination of claim 1 wherein said container is arranged
to have a square horizontal section and includes vertically
peripheral sides, said brackets being disposed on each said
vertically peripheral side, said container being accessible to
interface with the forklift prongs from any direction perpendicular
to said vertically peripheral sides.
13. A container for transportable storage of high volume parts
comprising:
vertically peripheral sides circumventing a top opening and being
arranged to have a square horizontal section;
channel shaped pads supporting said container, each said channel
shaped pad being arranged parallel to one said vertically
peripheral side and disposed to present an outer flange and an
inner flange relative to the overall thickness projected from
thereabove by said vertically peripheral side, said outer flange
being configured to overlap said vertically peripheral side and
said inner flange being notched to engage within said top opening,
said container being interlockingly stackable on other containers
of identical construction with said channel shaped pads engaging
across the vertically peripheral sides thereof to translate
horizontal stresses through the stacking interface and said
container being interchangeably stackable on other containers of
identical construction with any vertically peripheral sides thereof
vertically aligned; and
brackets affixed to said container and separated thereacross on
each said vertically peripheral side at the spacing of fork lift
prongs, each said bracket including a horizontal bearing surface
for interfacing with fork lift prongs and means for connecting to
an overhead lifting yoke, said horizontal bearing surfaces being
disposed on a common horizontal plane through said container, said
container being accessible to interface with the fork lift prongs
from any direction perpendicular to said vertitcally peripheral
sides.
Description
BACKGROUND OF THE INVENTION
The present invention relates to a storage container having
transport brackets configured for use with either a crane, or a
fork lift, especially such a container with a variable storage
capacity and a stacking feature of interchangeable and interlocking
nature. Transportable storage containers are utilized for widely
diverse purposes from the inventory of component parts for high
volume production to the harvest of grain. Hitherto, transportable
storage containers have been structured in many different ways to
combine transportability with either a vertical stacking feature or
a variable storage capacity feature.
Because fork lifts are widely used to transport containers, many
transportable storage containers are adapted for use therewith.
However, other common lift and transport provisions, such as a
crane, are not usable with these containers. Furthermore,
utilization of fork lifts therewith is limited due to the fact that
engagement accessibility therebetween is only possible in
particular directions.
Stacking of a plurality of units is possible with some
transportable storage containers, however, very few of these
containers provide any stacking interlock by which structural
integrity is assured between stacked units. However, on the
transportable storage containers which have a stacking interlock,
stacking is only possible when the units are particularly
orientated and, therefore, interchangeability does not exist in all
directions of access to the stack. Furthermore, the stacking
interlock is not directly adaptable for use with a dolly.
Variability in storage capacity is possible with a few
transportable storage containers, however, such containers are not
known to be stackable. Furthermore, the structural sophistications
by which the variability is achieved are costly and are easily
rendered inoperative by the abuse incurred in normal use.
SUMMARY OF THE INVENTION
It is, therefore, a general object of the present invention to
provide a transportable storage container which minimizes and
obviates the disadvantages of the prior art.
It is a specific object of the present invention to provide a
transportable storage container having brackets which are adapted
for transport by either a fork lift or a crane.
It is a more specific object of the present invention to provide a
transportable storage container which is accessible to a fork lift
from any direction perpendicular to its vertically peripheral
sides.
It is another object of the present invention to provide an
interlockingly stackable transportable storage container having a
detachable bin by which the storage capacity is varied.
It is a further object of the present invention to provide a
transportable storage container which is interlockingly stackable
whenever the vertically peripheral sides of the units are
interchangeably aligned.
It is still a further object to provide a detachable dolly to which
a transportable storage container is interlockingly affixable.
These objects are accomplished according to the present invention
by incorporating both a horizontal bearing surface for interfacing
with fork lift prongs and means for connecting to an overhead
lifting yoke on a single transport bracket. A container is
structured from a hopper base to which an extension bin is
detachably affixed and the transport brackets are separated across
opposite sides of the container at a distance equal to the spacing
between fork lift prongs. The hopper base includes a supporting
structure which is configured to engage across vertically
peripheral sides on the hopper base when disposed on the top
thereof and a dolly is structured with vertically peripheral sides
having the same dimensional parameters and arrangement as those of
the hopper base. When stacking interchangeability is desired
between units, the container is structured in a symmetrical
configuration about its vertical axis to provide a square
horizontal section therethrough.
BRIEF DESCRIPTION OF THE DRAWINGS
The manner in which these and other objects of the present
invention are achieved will be best understood by reference to the
following description, the appended claims, and the attached
drawings wherein:
FIG. 1 is a perspective view of a transportable storage container
having the transport brackets of this invention incorporated
thereon;
FIG. 2 is an enlarged partial elevational view of stacked hopper
bases with portions thereof cut away to illustrate the stacking
interlock in one horizontal direction;
FIG. 3 is a view similar to that of FIG. 2 but illustrating the
stacking interlock in a horizontal direction perpendicular to that
shown in FIG. 2;
FIG. 4 is a top view of a transportable storage container having
transport brackets with slots disposed thereon as a means for
connecting to an overhead lifting yoke and illustrating the fork
lift accessibility possible from any direction perpendicular to the
vertically peripheral sides of the container;
FIG. 5 is a reduced partial elevational view of a transportable
storage container having transport brackets with lifting hooks
disposed as a means for connecting to an overhead lifting yoke;
FIG. 6 is a view similar to that of FIG. 5 but illustrating the use
of transport brackets having a vertical web with an aperture
therethrough as a means for connecting to an overhead lifting
yoke;
FIG. 7 is a top perspective view of a transportable storage
container having transport brackets with flanges of a specific
thickness disposed thereon as a means for connecting to an overhead
lifting yoke;
FIG. 8 is a view similar to that of FIG. 2 but with complete
transportable storage containers stacked to illustrate that an
identical stacking interlock exists therebetween.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Turning now to the drawings, and more particularly to FIG. 1, there
is illustrated a transportable storage container 10 which is
interlockingly affixed on a detachable dolly 12 and includes
transport brackets 14 with provisions adapting to either an
overhead lifting yoke 16 or fork lift prongs 18. The container 10
is constructable in increments or storage capacity by detachably
affixing an extension bin 20 to a hopper base 22. Generally, the
hopper base 22 is constructed of a conventionally shaped
dischargeable hopper 24 which is affixed on a supporting structure
26 and a discharge gate 28 is disposed at the bottom of the hopper
24 to regulate distribution of materials stored therein.
Each bracket 14 includes means 30 for connecting to the overhead
lifting yoke 16 and a horizontal bearing surface 32 for interfacing
with the fork lift prongs 18. Although the brackets 14 are shown to
be affixed on each vertically peripheral side of the container 10
the fundamental concept of this invention only requires that two
brackets 14 be separated across opposite sides of the container 10
at a distance equal to the spacing between fork lift prongs 18.
Regardless of the number of brackets 14 utilized, the horizontal
bearing surface 32 on all brackets 14 must be disposed in a common
horizontal plane through the container 10. The brackets 14 can be
fabricated of any suitable material, such as metal, and are affixed
to the container 10 by any suitable means, such as welding. Angle
stock having two perpendicular flanges can be conveniently used in
the brackets 14 and arranged on the container 10 with a horizontal
flange 34 extending outwardly therefrom and with a vertical flange
36 lying flat thereagainst. An eye bolt 38 is affixed to the
horizontal flange 34 of each bracket 14 by suitable means, such as
welding and is engageable by a shackle 40 on the overhead lifting
yoke 16 to serve as the connecting means 30 therewith.
The dischargeable hopper 24 has vertical sides 42 extending from
the diverging end of a funnel shaped portion 44 and a top opening
46 into the hopper base 22 is established by the inner periphery of
the vertical sides 42. Therefore, the geometric configuration of
the top opening 46 and the dimensional parameters thereof are
determined from the peripheral arrangement of the vertical sides
42. The discharge gate 28 is located on the converging end of the
hopper 24 and includes a pivotal hatch 48 which is rotatably
affixed about a shute 50 in a conventional manner. Any suitable
means, such as bolts (not shown) can be utilized to secure the
discharge gate 28 to the hopper 24 and a handle 52 (shown in FIG.
4) is disposed on the pivot hatch 48 to control material
distribution.
Vertical support members 54 extend from channel shaped pads 56 to
establish the supporting structure 26. Angle stock having two
perpendicular flanges can be conveniently used for the vertical
support members 54, and is affixed to the hopper 24 at the vertical
corners thereof. The channel shaped pads 56 are arranged to present
an outer flange 58 and an inner flange 60 relative to the overall
width projected from directly thereabove by the vertically
peripheral side of the hopper base 22. Of course, this overall
width is equal to the combined thickness of the vertical side 42,
and the flange on the vertical support members 54. A notch 62 is
disposed at each longitudinal end of the pad 56 and reduces the
inner flange 60 in length to a magnitude slightly less than the
width projected from above by the top opening 46. Any suitable
means can be utilized to affix the support members 54 to both the
hopper 24 and the pads 56, such as welding. Of course, tie bars
(not shown) could be utilized to interconnect the pads 56 for
structural purposes.
The extension bin 20 is compatibly configured to engagingly affix
on the hopper base 22 in the top opening 46 thereof. Vertical sides
64 are arranged about the identical peripheral pattern as the
vertical sides 42 of the hopper base 22 so as to be vertically
complemental thereto, and the thickness of the material utilized
for both vertical sides 64 and 42 is identical. Because both
vertical sides 64 and 42 are vertically complementary, a top
opening 66 identical to that of the hopper base 22 exists into the
extension bin 20. Corner plates 68 of the same angle stock used for
the vertical support members 54 are disposed exteriorly at each
corner and butt straps 70 are disposed to extend from the inner
surface of each vertical side 64. Any suitable means can be
utilized to affix both the corner plates 68 and the butt straps 70
to the extension bin 20, such as welding.
Angle stock having two perpendicular flanges of identical thickness
to the vertical sides 42 on the hopper base 22 is used in
constructing the dolly 12. Lengths 72 of the angle stock are
rectangularly arranged, with each length 72 having a horizontal
flange 74 extending inwardly and a vertical flange 76 extending
upwardly. The lengths 72 are joined and gusset plates 78 disposed
therebetween at each corner. Downwardly extending casters 80 are
pivotally affixed through the gusset plates 78 and corner plates 82
of the same angle stock used for the vertical support members 54
are disposed exteriorly along each corner. The lengths 72 can be
affixed to both the gusset plates 78 and the corner plates 82 by
any suitable means, such as welding. The vertical flanges 76 are
disposed in a peripheral arrangement identical to that of the
vertical sides 42 on the hopper base 22 and, therefore, a top
opening 84 identical to that of the hopper base 22 exists into the
dolly 12.
In use, the hopper base 22 is interlockingly stackable on top of
other containers 10 and hopper bases 22 of identical construction
therewith, as illustrated in FIGS. 2, 3 and 8. This is so because
the channel shaped pads 56 on the supporting structure 26 are
engageable at the top of either the hopper base 22 or extension bin
20 across vertically peripheral sides thereon of identical overall
width. More specifically at every stacking interface, the outer
flanges 58 on the upper unit overlap the outer limits of the lower
init, as shown in FIG. 3 and due to the notches 62, the inner
flanges 60 on the upper unit engage into the top openings 46 or 66
of the lower unit, as illustrated in FIGS. 2 and 8. Therefore, when
shear stresses are translated through a stack of units in a
horizontal direction perpendicular to the flanges 58 and 60 the
outer flanges 58 develop the interlock and when shear stresses are
translated therethrough in a horizontal direction parallel to the
flanges 58 and 60 the inner flanges 60 develop the interlock.
Because the top of the dolly 12 is dimensionally identical to the
top of either the hopper base 22 or the extension bin 20, the
container 10 is affixed thereon with the horizontal stresses
therebetween being translated through an identical interlock to
that described above.
Generally, the supporting structure 26 of the container 10 is
rectangular and the brackets 14 are disposed on the vertically
peripheral sides thereof to interconnect the vertical support
members 54. Although it is not necessary to the fundamental concept
of this invention, in FIG. 1 the container 10 has a square
horizontal section and the brackets 14 are disposed on each
vertically peripheral side of the supporting structure 26.
Therefore, the container 10 is accessible to fork lift prongs 18
from any direction perpendicular to the vertically peripheral
sides, as illustrated in FIG. 4. Furthermore the square horizontal
section of the container 10 results in square top openings 46 and
66 therein and, therefore, the stackability of the containers 10 is
interchangeable when any vertically pheripheral sides thereof are
vertically aligned. It should be clearly understood, however, that
within the fundamental concept of this invention, only two brackets
14 are necessary and the horizontal section of the container 10 can
be an oblong rectangle. In such an arrangement, of course, the
container 10 would only be accessible to fork lift prongs 18 in
either of two axially aligned directions and would only be
stackable when vertically peripheral sides of identical length are
vertically aligned.
The container 10 stores high volume parts, such as nuts or bolts,
and is transportable from one location to another with the dolly
12, or a crane or a fork lift. When a crane is utilized, the
overhead lifting yoke 16 is connected to the hook (not shown)
thereof and the connecting means 30 on the brackets 14 is engaged
by the overhead lifting yoke 16. Then the hook is reeled in by the
crane to lift the container 10 for relocation as desired. Within
the art of rigging, many different types of lifting yokes 16
suitable to the container 10 of this invention are known. Very
generally described, the lifting yoke 16 provides a minimum of two
tension members 86 which are each connectable at one end to the
crane hook and are separated at some predetermined distance from
the crane hook by a spreader bar 88. The other end of each tension
member 86 extends freely from the spreader bar 88 and is adapted
with suitable means for engaging the connecting means 30, such as
the shackle 40 utilized to engage the eye bolt 38 in FIG. 1. As is
well known in the art of material distribution, when the fork lift
is utilized, the prongs 18 thereof are positioned under the
horizontal bearing surface 32 of the brackets 14 on opposite sides
of the container 10. Then the prongs 18 are raised and the fork
lift carries the container 10 to the desired new location. For
short distance relocations, such as within machining or assembly
areas, the container 10 is detachably affixed on the dolly 12 and
rolled in any desired direction. As discussed previously when the
container 10 is affixed on the dolly 12 an interlock exists
therebetween through which horizontal stresses are translated.
Distribution of the items from the container 10 is easily
accomplished at any location by merely turning the pivot hatch 48
to an open position. The hopper base 22 can be utilized for
transportable storage purposes independently of the extension bin
20 where its storage capacity is sufficient for a particular
application. Where the extension bin 20 is utilized to increase the
storage capacity of the hopper base 22, it is affixed thereto with
the edges of its vertical sides 64 abutting upon the edges of the
vertical sides 42 on the hopper base 22. Therefore, the butt straps
70 engage into the top opening 46 of the hopper base 22, as
illustrated in FIG. 8, to establish an interlock therebetween in a
horizontal plane.
Other specific embodiments of the overhead lifting yoke connecting
means 30 are illustrated in FIGS. 4-7, where no extension bins 20
are shown on the hopper bases 22, so as to simplify matters. Slots
90 are disposed through the horizontal flanges 34 on the brackets
14 in FIG. 4 and are engageable by any suitable means suspended
fron the overhead lifting yoke 16 such as a hook (not shown). A
hook 92 is affixed to each bracket 14 in FIG. 5 and engages a ring
94 suspended from the overhead lifting yoke 16. Many safety codes
require that the hook 92 includes a spring loaded tongue (not
shown) which permits the ring 94 to be easily engaged into the hook
92 but disengageable only after the tongue is depressed. In FIG. 6,
the connecting means 30 includes a vertical web 96 affixed on each
bracket 14 and an aperture 98 disposed therethrough. A hook 100 is
suspended from the lifting yoke 16 and is configured to be
engageable into the aperture 98. Again, the safety codes mentioned
previously require that the hook 100 include a spring loaded tongue
(not shown) operable in the same manner as discussed above. The
connecting means 30 on each bracket 14 can be merely a portion on
the horizontal flange 34 having a controlled thickness of
compatible magnitude with the gap of conventional plate grips 102,
as shown in FIG. 7.
It should be readily appreciated by those skilled in this art that
the transport brackets on the transportable storage container of
this invention are adaptable to either a fork lift or a crane.
Also, the transportable storage container has a variable storage
capacity and is interlockingly affixable on a dolly or is
interlockingly stackable on other containers of identical
construction. Furthermore, the accessibility of the fork lift from
any direction perpendicular to the vertically peripheral sides of
the container is possible when the transport brackets are affixed
on each vertically peripheral side and interchangeable stacking is
possible when the container is structured to have a square
horizontal section.
It should be understood that the present disclosure has been made
only by way of example and that numerous changes in details of
contruction and the combinations or arrangements of parts may be
resorted to without departing from the true spirit and scope of the
invention. Therefore, the present disclosure should be construed as
illustrative rather than limiting.
* * * * *