FIELD OF THE INVENTION
This invention relates to improved methods and apparatus concerning collapsible containers.
BACKGROUND OF THE INVENTION
Various container systems are known in the prior art.
SUMMARY OF THE INVENTION
The present invention, in one or more embodiments, provides a first container. The first container includes a first base comprised of first, second, third, and fourth sides The first container also includes first, second, third, and fourth walls, located adjacent to the first, second, third, and fourth sides of the base, respectively.
The first, second, third, and fourth walls, can each be placed in an erect or erected state, substantially perpendicular to the first base. The first container may also include a lid which can be connected to the first, second, third, and fourth walls in the erect state. The first, second, third, and fourth walls in their erect state typically form four sides of an open box structure and the first base forms a bottom of the open box structure. The lid can be used to close the open box structure.
The first wall can be placed in a ramp state in which the first wall lies adjacent to, but not on top of, the first base, and in which the first wall lies at an angle, which may be approximately five degrees with respect to the first base. The second wall, typically lying opposite the first wall, can also be placed in a ramp state in which the second wall lies adjacent to, but not on top of, the first base, and in which the second wall lies at an angle, which may be approximately five degrees with respect to the first base. In addition, the first, second, third, and fourth walls can be placed in a collapsed state in which the first, second, third, and fourth walls are substantially parallel to the first base.
A vehicle can be rolled over the first wall when the first wall is in its ramp state, and then rolled onto the first base. Similarly, a vehicle can be rolled over the second wall when the second wall is in its ramp state, and then rolled onto the first base. The first wall may be connected to the first base by a first axle which allows the first wall to pivot with respect to the first base. A first inverted J-shaped slot may be fixed to the third side of the first base and a second inverted J-shaped slot may be fixed to the fourth side of the first base. The third side of the first base is opposite the fourth side of the first base. The first axle may have a first end which is inserted into the first inverted J-shaped slot and a second end which is inserted into the second inverted J-shaped slot. The first and second inverted J-shaped slots allow the first wall to pivot about more than one pivot point with respect to the first base.
The apparatus may include a second container, similar to or identical to, the first container. The present invention includes a method of providing a first container as previously described, placing the walls in an erect state and then subsequently placing one or two of the walls in a ramp state. The method may also include rolling a vehicle over one of the walls in the ramp state and onto the base.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a perspective view of a container, including a lid, in accordance with an embodiment of the present invention, with the container shown in a fully assembled and fully erect state;
FIG. 2 shows a perspective view of the container of FIG. 1 in a fully assembled but collapsed state;
FIG. 3 shows a perspective view of a body portion of the container of FIG. 1, wherein the lid has been removed and is not shown, and wherein the body portion is in a fully erect state;
FIG. 4 shows a perspective view of the body portion of the container of FIG. 1, wherein a left ramp, a right ramp, a front panel, and a back panel of the body portion, are shown in a collapsed state;
FIG. 5 shows a perspective view of the body portion of the container of FIG. 1, wherein the left ramp, the right ramp, and the front panel are shown in a collapsed state while the rear panel is shown in an erect state;
FIG. 6 shows a perspective view of the body portion of the container of FIG. 1, wherein the left ramp and the right ramp are shown in a collapsed state while the front and rear panels are shown in an erect state;
FIG. 7 shows a perspective view of the body portion of the container of FIG. 1, wherein the rear and front panels are in an erect state, and the left ramp and the right ramp are both shown in a down state to allow a vehicle to be rolled over either of the left or right ramps and onto a floor or base of the body portion of the container;
FIG. 8 shows a perspective view of various states of the left and right ramps while the front and rear panels are in an erect state;
FIG. 9 shows a front blown up view of one of the inverted J-shaped slots of the container shown in FIG. 8;
FIG. 10 shows a side blown up view of a connection of two latching devices of the container shown in FIG. 7;
FIG. 11 shows a perspective blown up view of different positions of an end of an axle in an inverted J-shaped slot;
FIG. 12 shows a side blown up view of the front panel connected to the base by a hinge; and
FIG. 13, shows a perspective view of the container of FIG. 1, flipped so that the bottom of the container of FIG. 1 can be seen.
DETAILED DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a perspective view of a container 1, including a lid 10 and a body portion 12, in accordance with an embodiment of the present invention, with the container 1 shown in a fully assembled and fully erect state. FIG. 2 shows a perspective view of the container 1 of FIG. 1 in a fully assembled but collapsed state. FIG. 3 shows a perspective view of the body portion 12 of the container 1 of FIG. 1, wherein the lid 10 has been removed and is not shown, and wherein the body portion 12 is in a fully erect state.
The lid 10, as shown in FIGS. 1 and 2, includes a top surface 10e, and sides 10a, 10b, 10c, and 10d. Attachment devices 11a, 11b, 11c, and 11d, shown in FIG. 2, are attached to the top surface 10e of the lid 10. The attachment devices 11a, 11b, 11c, and 11d include slide bolts 13a, 13b, 13c, and 13d, respectively, which are pivotally connected to mounting devices 15a, 15b, 15c, and 15d, respectively, so that the slide bolts 13a-d can pivot with respect to the top surface 10e. Mounting devices 15a, 15b, 15c, and 15d serve several purposes. First, they vertically align the slide bolts 13a, 13b, 13c, and 13d with holes of forklift rails of a container similar to container 1, to be stacked on top of container 1. Mounting device 15a would be aligned with a hole, similar to hole 24a of rail 24 shown in FIG. 2, but for a container stacked on top of container 1. Mounting device 15b would be aligned with a hole, similar to hole 22a, but for a container stacked on top of container 1. Mounting device 15d would be aligned with a hole in the container stacked on top of container 1, similar to a hole opposite hole 24a, in the rail 24, near side 10d of the lid 10 in FIG. 2. Mounting device 15c would be aligned with a hole in the container stacked on top of container 1, similar to a hole opposite hole 22a, in the rail 22, near side 10d of the lid 10 in FIG. 2. Holes 22a, 24a, and holes at the opposite ends of the rails 22 and 24, not shown, allow the stacking and interlocking of multiple containers.
A second purpose of the mounting devices 15a-d is to act as guides for stacked containers. Third, the mounting devices 15a-d help to protect the slide bolts 13a, 13b, 13c, and 13d during the stacking process. Fourth, the mounting devices 15a and 15b act as a stop for another container, identical to container 1, stacked on top of container 1. The container 1 also includes angles 25 and 23 attached at one end of the rails 24 and 22 respectively, near side 10a of the lid 10 shown in FIG. 2. When angles similar to angles 25 and 23 of a container, similar to container 1, to be stacked on top of container 1, hit mounting devices 15a and 15b, respectively, the slide bolts 13a and 13b, respectively, can be engaged with the holes in the forklift rails, of the container stacked on top, similar to holes 24a and 22a. In addition, the slide bolts 13c and 13d can be engaged with holes in the forklift rails of the container stacked on top, similar to holes that are opposite holes 24a and 22a in the forklift rails 24 and 22 shown in FIG. 2.
Attachment devices 11e and 11f are attached to the side 10c. The attachment devices include rings 31e and 31f, which are pivotally connected by mounting devices 15e and 15f, so that the rings can pivot with respect to the side 10c. There are another two attachment devices, similar to 11e and 11f, another two rings similar to 31e and 31f and another two mounting devices similar to 15e and 15f, attached to side 10b of the lid 10, but not shown in FIG. 2. The attachment devices 11e and 11f, and the similar attachment devices not shown, but attached to side 10b, serve two purposes. First, they act as handles to allow the end user to remove the lid 10 from the container 1. Second, they allow the end user to tie down or secure the container 1 to a surface like a pallet. The sides 10a, and 10d may also include two attachment devices similar to 11e and 11f. The sides 10a and 10d have a height H1, shown in FIG. 2 which is about half of a height H2 of the sides 10c and 10b. The sides 10c and 10b each may be, but are not required to be, about half as long as the sides 10a and 10d. Latching devices 17 and 19 may be fixed to the side 10a and may be used to latch the side 10a to a front panel 14 when the container 1 is in the fully erect state of FIG. 1, and to the base 30 when the container 1 is in the collapsed state of FIG. 2. There may be similar latching devices provided on the side 10d of the lid 10.
The body portion 12 of the container 1 includes the front panel or wall 14, a left ramp or wall 16, a rear panel or wall 18, and a right ramp or wall 20. The body portion 12 also includes a base or bottom surface 30, shown partially in FIG. 3. The front panel 14, left ramp 16, rear panel 18, right ramp 20, and base 30, when in the upright or erect state of FIG. 3, define a cavity 32 into which cargo such as a small vehicle or all terrain vehicle (ATV) can be placed. The base 30 has sides 30c, and 30d, (FIG. 2) which can be latched to sides 10a, and 10d of the lid 10 in a fully collapsed state.
The front panel 14 may include an emergency access port 14a, handles 14b and 14f, latching devices 14c, 14d, 14e, 14g, 14h, 14i, 14j, and 14k. Latching devices 14c and 14g which engage with devices 17 and 19 on the lid 10, shown in FIG. 1, in order to secure the lid 10 in place. Latching devices 14d and 14e engage with latching devices 16f and 16h, respectively, located on the left ramp 16, to affix the front panel 14 to the left ramp 16. Latching devices 14h and 14i engage with latching devices 20a and 20b, respectively, located on the right ramp 20, to affix the front panel 14 to the right ramp 20. This gives rigidity and strength to the body portion 12 of the container 1. Handles 14b and 14f are used by an end user to lift and lower the front panel 14 during the collapsing and erecting of the container 1. The rear panel 18 may be, but is not required to be, identical to the front panel 14. The left ramp 16 may include handles 16a, 16b, 16c, and 16d, and latching devices 16e, 16f, 16g, and 16h. The handles 16a-d may be part of or attached to the left ramp 16. The right ramp 20 may be identical to the left ramp 16. The right ramp 20 may include handles similar to 16a-d. The left ramp 16 may include reinforcing members 16x and 16y, shown in FIG. 3. The right ramp 20 may include similar reinforcing members. The latching devices 14j and 14k of the front panel 14 may be connected to latching devices 30a and 30b, respectively, of base 30 to attach or latch front panel 14 to base 30.
The rear panel 18 may be latched to the left ramp 16 and to the right ramp 20 in a manner similar to the manner in which front panel 14 can be latched to the left ramp 16 and to the right ramp 20. The rear panel 18 may be latched to the base 30 in a manner similar to the manner in which the front panel 14 can be latched to the base 30. The right ramp 20 can be latched to the front panel 14 in a manner similar to the manner in which the left ramp 16 can be latched to the front panel 14.
The base 30 of the container 1 has attached thereto, forklift rails or slots 22, 24, 26, and 28. Two forklift rails, not shown, would also be provided opposite rails 26 and 28, near right ramp 20. FIG. 13, shows a perspective view of the container 1 flipped so that the bottom of the container 1 can be seen.
FIG. 4 shows a perspective view of the body portion 12 of the container 1 of FIG. 1, wherein a first ramp 16, a second ramp 20, a front panel 14, and a back panel 18 of the body portion 12, are in a collapsed state. The back panel 18 is shown collapsed on top of the front panel 14. Portion 18a similar to portion 14a is shown in FIG. 4. Latching devices 18h and 18i for connecting or latching to latching devices 16e and 16g, of left ramp 16, respectively, are shown by the combination of FIGS. 3 and 4. Latching devices 18d and 18e for connecting to right ramp 20 are shown in FIG. 4. Latching devices 18c and 18g for connecting to lid 10, are shown in FIG. 4. Latching devices 18j and 18k for connecting to base 30 are shown in FIG. 4. The back panel 18 includes a flange 19a shown in FIG. 4, similar to a flange 14l for front panel 14, shown in FIG. 3. The back or rear panel 18 includes handles 18b and 18f, shown in FIG. 4, for lifting or rotating the rear panel 18 into an upright state or lowering, folding, and/or rotating the rear panel 18 into a collapsed state.
FIG. 5 shows a perspective view of the body portion 12 of the container 1 of FIG. 1, wherein the left ramp 16, the right ramp 20, and the front panel 14 are shown in a collapsed state while the rear panel 18 is shown in an erect state. In FIG. 5, the left ramp 16 is collapsed or folded over the base 30. The left ramp 16 is connected to the base 30 by rod or axle 46. The left ramp 16 can pivot with respect to the base 30 about rod or axle 46. The rod or axle 46 has an end 46a, which is shown inserted into an upside down or inverted J-shaped slot 50a in a plate 50. The plate 50 is fixed to side 30c of the base 30 shown in FIG. 3. The rod or axle 46 also has an end 46b, which is shown inserted into an upside down or inverted J-shaped slot 51a in a plate 51. The plate 51 is fixed to a side of the base 30 opposite side 30c. In the collapsed position of FIG. 5, the end 46a lies at a location 90a in the inverted J-shaped slot 50a, which is shown in FIG. 11, and the end 46b, lies in a similar location in the inverted J-shaped slot 51a. The location 90a lies at a first end of the inverted J-shaped slot 50a.
In FIG. 5, the right ramp 20 is collapsed or folded over the base 30. Similar to the left ramp 16, the right ramp 20 is connected to the base 30 by a rod or axle 47. The right ramp 20 can pivot with respect to the base 30 about the rod or axle 47. The rod or axle 47 has an end 47a, which is shown in inserted into an inverted J-shaped slot 52a in a plate 52. The plate 52 is fixed to side 30c of the base 30, shown in FIG. 3. The rod or axle 47 also has an end 47b, which is shown inserted into an inverted J-shaped slot 53a in a plate 53. The plate 53 is fixed to the base 30 at a side opposite the side 30c. In the collapsed position of FIG. 5, the end 47a lies at a location at an end of the inverted J-shaped slot 52a, similar to the location 90a, for the inverted J-shaped slot 50a shown in FIG. 11 and the end 47b lies at a similar location in the inverted J-shaped slot 53a.
In FIG. 5, the left ramp 16 and the right ramp 20 collapse or fold over so that they do not overlap each other, however, this is not a requirement for the operation of this type of container. In one embodiment, the top edge 16i of left ramp 16 and the top edge 20i of right ramp 20 as shown in FIG. 3, touch one another or are closely adjacent when the left ramp 16 and right ramp 20 are folded over as in FIG. 5. The front panel 14 is shown in FIG. 5 collapsed or folded over the left ramp 16 and the right ramp 20. The front panel 14 is connected to the base 30 by rod, hinge, or axle 48, shown in FIG. 12. The front panel 14 can pivot with respect to the base 30 about rod, hinge, or axle 48. In this case, the hinge 48 is connected to both the front panel 14 and the base 30 as seen in FIG. 12.
FIG. 6 shows a perspective view of the body portion 12 of the container 1 of FIG. 1, wherein the first ramp 16 and the second ramp 20 are shown in a collapsed state while the front panel 14 and the rear panel 18 shown in an erect state. The front panel 14 is kept erect by the engagement of the latches 30a and 30b with the keepers, or latching device, 14j and 14k mounted to the front panel 14. The rear panel 18 is kept erect in a similar fashion.
FIG. 7 shows a perspective view of the body portion 12 of the container 1 of FIG. 1, wherein the rear panel 18 and the front panel 14 are in an erect state, and the left ramp 16 and the right ramp 20 are both shown in a down state to allow a vehicle to be rolled over either of the left ramp 16 or the right ramp 20 and onto the floor or base 30 of the body portion 12 of the container 1. The left ramp 16 has a substantially flat inner surface 16k. The left ramp 16 includes a portion 16j which is a handle that allows the end user to easily lift the left ramp 16 when attempting to close the container 1. Similarly the right ramp 20 has a substantially flat inner surface 20k and a handle 20j.
In the state of FIG. 7, the end 46a of axle 46 is shown inserted into the inverted J-shaped slot 50a and at a location 90d, shown in FIG. 11, at the bottom, or second end, of the inverted J-shaped slot 50a. Similarly, the end 46b of the axle 46 is inserted in the slot 51a and at a location at the bottom, or second end, of the inverted J-shaped slot 51a. Similarly, in FIG. 7, the end 47a of axle 47 is shown inserted into the inverted J-shaped slot 52a and at a location at the bottom of the inverted J-shaped slot 52a. Similarly, the end 47b of the axle 47 is inserted in the slot 53a and at a location at the bottom of the inverted J-shaped slot 53a.
FIG. 8 shows a perspective view of various states of the left ramp 16 and the right ramp 20 while the front panel 14 and the rear panel 18 are in an erect state. A left ramp position or state 116 shows the position of the left ramp 16 when it is completely down as in FIG. 7. Left ramp positions or states 216 and 316 show positions of the left ramp 16 when the left ramp 16 is partially up. A left ramp position or state 416 shows the position of the left ramp 16 when the left ramp 16 is fully erect as in FIG. 3. A left ramp position 516 shows the left ramp 16 when it is partially collapsed.
Similarly, a right ramp position or state 120 shows the position of the right ramp 20 when it is completely down as in FIG. 7. Right ramp positions or states 220 and 320 show positions of the right ramp 20 when the right ramp 20 is partially up. A right ramp position or state 420 shows the position of the right ramp 20 when the right ramp 20 is fully erect as in FIG. 3. A right ramp position or state 520 shows the right ramp 20 partially collapsed. A right ramp position or state 620 shows the right ramp 20 fully collapsed.
FIG. 9 shows a perspective blown up view of the inverted J-shaped slot 52a of the container 1 shown in FIG. 5. FIG. 10 shows a left blown up view of latching device 18k which latches to a latching device opposite latching device 30a on the base 30 of the container 1 shown in FIG. 7. FIG. 11 shows a perspective blown up view of different positions of an end 46a of an axle in the inverted J-shaped slot 50a.
In operation, the container 1 may be received in the collapsed state of FIG. 2. In order to change the container 1 from the collapsed state of FIG. 2 to the fully erect state of FIG. 1, the following steps can be followed. Firstly, the latching devices 30a and 30b on side 30c of the base 30 are disconnected from the latching devices 17 and 19 on the surface or side 10a of the lid 10, respectively, as shown in FIG. 2. Latching devices similar to latching devices 30a and 30b, on a side opposite side 30c on the base 30, are disconnected from latching devices similar to 17 and 19 on the surface or side 10d of the lid 10. The lid 10 can then be lifted off of the base 30 of the body portion 12 (actually sitting on items 33 in FIG. 6 and 34 in FIG. 10) and set down at another location apart from the body portion 12. The body portion 12 in a fully collapsed state, with the lid 10 removed, is shown in FIG. 4. The rear panel 18 can then be folded upwards or rotated upwards, about rod or axle or hinge 49, to which the rear panel 18 is connected, into an upright position as shown by FIGS. 4 and 5. The rear panel 18 can be lifted or folded upwards from the position of FIG. 4 into the position of FIG. 5 by the pulling the handles 18b and 18f upwards. One person may pull on handle 18b and another person may pull on handle 18f. The rear panel 18 is held in an upright position by a flange 19a resting on item 34 (FIG. 10) and locked into an upright position by latching or connecting latching devices similar to latching device 30a and 30b shown in FIG. 3, but on the opposite side of the base 30 to devices 18j and 18k (shown in FIG. 4).
With the rear panel 18 locked in place with respect to the base 30, the front panel 14 can then be unfolded or lifted from the collapsed position of FIG. 5 to the upright position of FIG. 6. The front panel 14 rotates with respect to the base 30 about axle or rod or hinge 48, to which the front panel 14 is connected. The flange 14l shown in FIG. 3, of the front panel 14, rests on item 33 similar to the way the flange 19a of the rear panel 18 rests on item 34. The flanges 19a and 14l serve two purposes. First, they give added stability to the body of the container by resting on 34 and 33 respectively. They also act as a means of shielding rain water from running down the front and back panels into the base of the container. It should be noted that a second purpose for items 33 and 34 is to support the lid when the container is in the closed position. The front panel 14 is locked in the upright position of FIG. 6, by connecting latching devices 30a and 30b of the base 30 to latching devices 14j and 14k of the front panel 14.
Next, the left ramp 16 is lifted or folded upwards from the collapsed state of FIG. 6, to the erect state of FIG. 3. The left ramp 16 can be lifted, folded or rotated upwards by pulling handles 16a and 16b. One person may pull on each of handles 16a and 16b. The left ramp 16 rotates upwards about axle 46 to which the left ramp 16 is connected. When the left ramp 16 is in the fully collapsed position of FIG. 6, the end 46a of the rod or axle 46 lies in position 90a, at a first end of the inverted J-shaped slot 50a, as seen in FIG. 11. The right ramp 20 works in a similar fashion. When the left ramp 16 is lifted up, the ends 46a and 46b remain at ends 90a and an end similar to 90a, respectively, of the inverted J-shaped slots 50a and 51a. The latching devices 16e and 16g are connected to latching devices 18h and 18i on the rear panel 18 and the latching devices 16f and 16h are connected to latching devices 14d and 14e on the front panel 14 to lock the left ramp 16 in place.
Similarly the right ramp 20 is lifted or folded upwards from the collapsed state of FIG. 6, to the erect state of FIG. 3. The right ramp 20 can be lifted, folded or rotated upwards by pulling handles on right ramp 20, similar to handles 16a and 16b. One person may pull on each of the handles. The right ramp 20 rotates upwards about axle or rod 47 to which the right ramp 20 is connected. When the right ramp 20 is in the position of FIG. 6, the ends 47a and 47b of the rod or axle 47 lie at ends, similar to the location of 90a shown in FIG. 11, of the inverted J-shaped slots 52a and 53a, respectively. When the right ramp 20 is lifted up, the ends 47a and 47b remain at ends similar to the location 90a shown in FIG. 11, of the inverted J-shaped slots 52a and 53a, respectively. Latching devices, on the right ramp 20, similar to latching devices 16e and 16g are connected to latching devices 18d and 18e on the rear panel 18 and latching devices, on the right ramp 20, similar to latching devices 16f and 16h are connected to latching devices 14h and 14i on the front panel 14 to lock the right ramp 20 in place.
After the body portion 12 is in the erected state of FIG. 3, the lid 10 can be placed back on the body portion 12 as shown by FIG. 1. The lid 10 can be picked up by two people. One person would lift one end by holding the ring 31e in one hand and holding the ring 31f in his or her other hand, and another person would lift the other end by holding the ring similar to 31e, but on side 10b of the lid 10, in one hand and holding the ring similar to 31f, but on side 10b of the lid 10, in his or her other hand. After the lid 10 is placed on top of the body portion 12 as shown in FIG. 1, the latching devices 14c and 14g on the front panel 14 can be latched or connected to latching devices 17 and 19 of the lid 10. Similarly, the latching devices 18g and 18c on the rear panel 18 can be latched or connected to latching devices on side 10d of the lid 10. This secures the lid 10 to the body portion 12.
The procedure for dropping one of the ramps of left ramp 16 and right ramp 20, will be described with reference to left ramp 16. The body portion 12 for purposes of this description, starts out in the erect state of FIG. 3, with the lid 10 removed. The left ramp 16 is latched to the rear panel 18 by latching devices 16e and 16g connected to latching devices 18h and 18i, respectively, and latched to the front panel 14 by latching devices 16f and 16h connected to latching devices 14d and 14e, respectively. The left ramp 16 is disconnected from the rear panel 18 and the front panel 14 by disconnecting latching devices 16e and 16g from latching devices 18h and 18i, respectively, and disconnecting latching devices 16f and 16h from latching devices 14d and 14e, respectively.
The left ramp 16 is then pulled upwards so that the ends 46a and 46b of the rod or axle 46 are pulled upwards to the highest point of inverted J-shaped slots 50a and 51a. Referring to FIG. 11, for inverted J-shaped slot 50a, this would be a location between 90a and 90b, at the top of the inverted J-shaped slot 50a. The left ramp 16 is then dropped downwards, so that the ends 46a and 46b of the rod or axle 46 are dropped into the longer part of the inverted J-shaped slots 50a and 51a, respectively. The end 46a is dropped downwards through the positions 90b, 90c, and 90d shown in FIG. 11. The left ramp 16 is then rotated downwards through the positions 316, 216 and 116 shown in FIG. 8. The use of the inverted J-shaped slots 50a and 51a (for left ramp 16), allows the surface 16k of the left ramp 16 to be even with the surface 30e as seen in FIG. 7. This allows a heavy vehicle or other heavy cargo to be easily rolled into or slid into the cargo region or chamber 32 (shown in FIG. 7, which will be bound by ramps 16 and 20 and walls or panels 14 and 18) and prevents the cargo from being damaged. It should be noted that ramp 16 may be dropped while the axle 46 is in location 90a as shown in FIG. 11. In this configuration, the surface 16k of the left ramp 16 will not be even with the surface 30e of the base 30. This technique may be used if an even loading surface between the left ramp 16 and surface 30e of the base 30 is not required. The same applies for the right ramp 20.
The right ramp 20 can be lowered in a manner similar to or identical to the left ramp 16. The right ramp 20 can be lowered from the erect position 420 through positions 320, 220, and 120, shown in FIG. 8.
The left ramp 16 includes magnets 16m, 16n, 16o, and 16p. When the latching devices 16e, 16g, 16f, and 16h are disconnected from latching devices on the rear panel 18 or front panel 14, they can be attached to the magnets. This prevents damage from occurring to the latching devices 16e-16h when the ramp 16 is in the position shown in FIG. 7. Latching devices 16e, 16f, 16g, and 16h can be attached to magnets 16m, 16o, 16n, and 16p, respectively. Magnets similar to magnets 16m-p are also located on the right ramp 20.
Flanges 19a and 14l as seen in FIG. 10 and FIG. 12, respectively, on the front and back panels are used not only as protection against the weather, but give added stability to the body 12 of the container 1 by flange 19a resting on component 34, and flange 14l resting on component 33.
Although the invention has been described by reference to particular illustrative embodiments thereof, many changes and modifications of the invention may become apparent to those skilled in the art without departing from the spirit and scope of the invention. It is therefore intended to include within this patent all such changes and modifications as may reasonably and properly be included within the scope of the present invention's contribution to the art.
Patent Grant
8152014
