JP6490864B1 - Handling equipment, lifting method of roll box pallet - Google Patents

Abstract

A cargo handling assistance device capable of improving the efficiency and safety of loading and unloading operations of a roll box pallet to a loading platform, and a method of lifting the roll box pallet. A cargo handling assistance device (10) is provided on each of a bottom wall (22), two side walls (23, 24), a rear wall (25) and front and rear ends of lower ends of the two side walls (23, 24). It can be placed below a roll box pallet 20 with casters 26. In the cargo handling assistance device 10, the length in the first direction D1 is longer than the distance between the two side wall portions 23, 24, and the length in the second direction D2 orthogonal to the first direction D1 is the side wall portion 23, The main body 30 includes a support member configured to have a shape shorter than the distance between the casters 26 provided on the front and rear ends of the main body 24, and the caster 40 provided on the main body 30. [Selected figure] Figure 2

Description

  The present invention relates to a cargo handling assistance device that assists in cargo handling, and a method of lifting a roll box pallet.

  From the past, the loading and unloading of packages using roll box pallets (commonly known as basket cars) has been known. For example, in the case where there are a plurality of transport destinations, it is possible to improve the cargo handling efficiency by stacking the packages for each transport destination on a common roll box pallet. In addition, the roll box pallet also has a function of storing luggage.

JP-A-8-80855

  However, as described above, the loading and unloading of packages using roll box pallets has the following problems. That is, as a method of loading and unloading roll box pallets onto and from a truck bed, a loading and unloading method using a platform is known, but when a worker loads and unloads roll box pallets onto a truck bed, There is a problem that the roll box pallet may fall from the platform. In addition, it is necessary to level the truck on the platform, which limits the loading / unloading area and makes the loading / unloading operation of the roll box inefficient.

  There is also known a method of loading and unloading a roll box pallet onto a truck bed by means of a forklift, but the roll box pallet is generally made of a metal material, and forklift claws are also generally made of a metal material. Since the roll box pallet is slippery with respect to the fork of the forklift, the roll box pallet may fall from the fork of the fork.

  Furthermore, although the bottom wall of the roll box pallet is normally locked by the locking mechanism in a posture where the load can be placed, if the bottom wall is unlocked by a failure of the locking mechanism, etc. There is also a possibility that the roll box pallet may be broken because the bottom wall is pushed up by the claws.

  Therefore, an object of the present invention is to provide a cargo handling assistance device capable of improving the efficiency and safety of loading and unloading operations of a roll box pallet to a loading platform, and a method of lifting the roll box pallet.

  The cargo handling assistance device is provided under a roll box pallet having a bottom wall, two side walls, a rear wall, and first casters provided on the front and rear ends of the lower ends of the two side walls, respectively. Will be placed.

The cargo handling assistance device has a stopper protruding from the upper surface, and the length along the first direction from one end of the first direction to the stopper has a dimension longer than the distance between the two side wall portions And the length of the second direction orthogonal to the first direction has a dimension shorter than the distance between the first casters respectively provided at the front and rear ends of the side wall portion, a body insertable holes are formed and provided in the main body, and a second caster that allows moving the body, the height from the lower end of said second caster to said upper surface, The height is lower than the height from the lower end of the first caster to the lower end of each of the two side wall portions.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the cargo handling assistance apparatus which can improve the efficiency and safety | security of the unloading operation | work of a roll box pallet with respect to a loading platform, and the lifting method of a roll box pallet.

FIG. 1 is a perspective view showing a state of loading and unloading of a roll box pallet using the cargo handling assistance device according to the first embodiment of the present invention. FIG. 2 is a perspective view showing the configuration of the cargo handling assistance device of the first embodiment. FIG. 3 is a bottom view of the lower surface of the roll box pallet and the periphery thereof as viewed from below in a state in which the roll box pallet is lifted by a forklift using the cargo handling assistance device of the first embodiment. FIG. 4: is a top view which shows the structure of the cargo handling assistance apparatus which concerns on the 2nd Embodiment of this invention. FIG. 5 is a cross-sectional view of the cargo handling assistance device of the second embodiment, taken along the line F5-F5 shown in FIG. FIG. 6 is a cross-sectional view of the second embodiment of the cargo handling assistance device shown along the line F6-F6 shown in FIG. FIG. 7 is a plan view showing a state in which the first support member and the second support member used in the cargo handling assistance device according to the second embodiment of the present invention are expanded. FIG. 8 is a cross-sectional view showing the main parts of the cargo handling assistance device according to the third embodiment of the present invention.

  A cargo handling assistance device 10 according to a first embodiment of the present invention will be described using FIGS. 1 to 3. FIG. 1 is a perspective view showing the state of loading and unloading of the roll box pallet 20 using the cargo handling assistance device 10. As shown in FIG. FIG. 2 is a perspective view showing the configuration of the cargo handling assistance device 10. FIG. 3 is a bottom view of the lower surface of the roll box pallet 20 and the periphery thereof, viewed from below, in a state in which the roll box pallet 20 is lifted by the forklift 5 using the cargo handling assistance device 10.

  As shown in FIG. 1, the cargo handling assistance device 10 is used in a state of being disposed below the roll box pallet 20 when the roll box pallet 20 is lifted by the forklift 5. The roll box pallet 20 is a so-called basket car. The cargo handling assistance device 10 assists the loading and unloading of the load M stored in the roll box pallet 20 by assisting loading and unloading of the roll box pallet 20 by the forklift 5. First, the roll box pallet 20 will be described.

  The roll box pallet 20 has a pallet body 21 and a plurality of casters 26 provided on the pallet body 21. The pallet main body 21 is configured to be able to accommodate a plurality of packages M. The pallet main body 21 is, for example, formed in a box shape having an open front and upper surface, and the bottom wall 22, the first side wall 23, the second side wall 24, and the rear wall 25; Is equipped. The roll box pallet 20 accommodates the package M.

The bottom wall portion 22 is formed of, for example, a rectangular plate member. In the present embodiment, the bottom wall portion 22 is formed in a square shape as an example, and further as a square shape having a side of 1,100 mm as an example. In addition, the shape of the bottom wall part 22 is not limited to square shape. The bottom wall portion 22 may be formed of, for example, a rectangular plate member elongated in one direction.
A caster (first caster) 26 is provided at each of the front and rear ends of the lower end of the first side wall portion 23. A caster 26 is provided at each of the front and rear ends of the lower end of the second side wall portion 24. The caster 26 is rotatably connected to the side wall portions 23 and 24 by a rotation axis parallel to the vertical direction. The roll box pallet 20 moves the package M by traveling by the caster 26 in a state where the package M is stored. Further, as described above, the caster 26 is connected to the side wall portions 23 and 24 by rotation axes parallel to the vertical direction, so that the roll box pallet 20 can be moved in a desired direction.

  The roll box pallet 20 is configured to be foldable, for example. As one example of the foldable configuration, the rear end of the bottom wall 22 is rotatably connected to the lower end of the rear wall 25 by a horizontal parallel rotation shaft as shown by arrow R1. . The second side wall portion 24 is rotatably connected to the rear wall portion 25 as indicated by an arrow R2 by a rotation axis parallel to the vertical direction.

  In the roll box pallet 20, a lock mechanism for locking the bottom wall portion 22 so that the upper surface of the bottom wall portion 22 is parallel to the horizontal direction, and the second side wall portion 24 to the first side wall portion 23. It has a lock mechanism that locks in a parallel state. By these locking mechanisms, the roll box pallet 20 is maintained in a shape capable of containing the load M as shown in FIG.

  The roll box pallet 20 configured in this way is folded by pivoting the bottom wall 22 and the second side wall 24. Since the roll box pallet 20 is disposed in the standby space in a folded state when not in use, the area occupied by the roll box pallet 20, that is, the storage space of the roll box pallet 20 can be saved. In addition, the roll box pallet 20 is convenient for transporting a plurality of rolls by being folded.

  The cargo handling assistance device 10 includes a main body 30, a plurality of casters (second casters) 40 provided on the main body 30, and a handle 50 provided on the upper surface 31 of the main body 30, as shown in FIG. ing.

  The main body 30 is configured in a shape having a predetermined thickness, and as an example, the outer appearance is configured in a rectangular shape. The predetermined thickness said here is the thickness which can form the hole which can arrange the nail | claw 6 of the forklift 5 in the thickness of the main body 30. As shown in FIG. The main body 30 is made of, for example, a resin material. In the present embodiment, as an example, the upper surface of the main body 30 is formed in a rectangular shape.

The main body 30 has a dimension such that the distance from one end in the first direction D1 to the handle 50 is longer than the distance between the side walls 23 and 24 of the roll box pallet 20. The first direction D1 is one in a direction parallel to the upper surface 31 of the main body 30.
Further, the main body 30 has a length from one end to the other end in the second direction D2 orthogonal to the first direction D1 between castors 26 provided at each of the front and rear ends of the lower end of the first side wall portion 23 Have a dimension shorter than

  In the present embodiment, since the upper surface 31 is formed in a rectangular shape, the longitudinal direction of the upper surface 31 is taken as a first direction D1 as an example, and the short direction of the upper surface 31 is taken as a second direction D2.

Therefore, the length L1 from one end in the longitudinal direction of the main body 30 to the handle 50 has a dimension longer than the distance L2 between the side walls 23 and 24 of the roll box pallet 20.
The short side length L3 of the main body 30 has a dimension shorter than the distance L4 between the two casters 26 of the side walls 23 and 24 of the roll box pallet 20, respectively. In the present embodiment, the distance L4 between the two casters 26 is, for example, a distance when the rotation axis of each of the two casters 26 is parallel to the first direction D1 (longitudinal direction). It is. The distance L4 between the two casters 26 is not limited to the distance between the postures when the respective rotation axes are parallel to the first direction D1. In another example, the distance L4 between the two casters 26 may be a distance when the rotation axis of each of the two casters 26 is in a posture in which it is parallel to the second direction D2. In short, regardless of the postures of the two casters 26 of the side walls 23 and 24 of the roll box pallet 20, the cargo handling assist device 10 is disposed between the two casters 26 regardless of the lateral length L3 of the main body 30. It may have any possible dimensions.

  The main body 30 also has a lift-up hole 32. The lift-up holes 32 are holes in which the claws 6 of the forklift 5 are accommodated. The lift-up holes 32 have, for example, a first hole 32 a and a second hole 32 b.

  Two first holes 32a are formed. The two first holes 32a are formed within the thickness of the main body 30, and penetrate the main body 30 in the second direction D2. One of the first holes 32 a is formed so that one of the two claws 6 of the forklift 5 can be arranged, and the other first hole 32 a is formed so that the other claw 6 can be arranged.

Two second holes 32b are formed. The two second holes 32b are formed within the thickness of the main body 30, and penetrate the main body 30 in the first direction D1. One second hole 32 b is formed to be able to arrange one claw 6 of the forklift 5, and the other second hole 32 b is formed to arrange the other claw 6 below.
The first hole 32a and the second hole 32b may have, for example, a configuration in which a part is common. For example, the first hole 32a and the second hole 32b are disposed at the same position in the thickness direction of the main body 30A, and therefore, parts of each other intersect, and the intersections are common. It becomes composition.

The upper surface 31 of the main body 30 is provided with a non-slip portion. The non-slip portion 33 makes the roll box pallet 20 placed on the upper surface 31 less likely to slip relative to the upper surface 31. The slip and stop portion 33 is configured, for example, by fixing a tape material having a relatively high coefficient of friction to the upper surface 31.
Specifically, the non-slip portion 33 extends from one end to the other end of the upper surface 31 in the first direction D1. A plurality of non-slip portions 33 are provided as an example, and they are respectively spaced apart in the second direction D2.

One caster 40 is provided at each of, for example, four corners of the lower surface of the main body 30.
The handle 50 is provided on the other end of the upper surface 31 of the main body 30 in the longitudinal direction (first direction D1). The handle 50 is gripped by the user when the cargo handling assistance device 10 is run. The handle 50 is configured in a U-shape as an example in a front view. The handle 50 is not limited to being configured in a U-shape when viewed from the front. For example, the handle 50 may be configured in a T-like shape in a front view.

  The handle 50 also functions as a stopper that restricts the movement of the cargo handling assistance device 10 by abutting on the roll box pallet 20 when the cargo handling assistance device 10 is inserted from the side below the roll box pallet 20.

  The handle 50 is configured to be foldable as an example. The folding structure which makes the handle 50 foldable includes, as an example, a handle receiving groove 51 formed on the upper surface 31 of the main body 30, and a rotating shaft supporting the lower end of the handle 50 so as to be rotatable. ing.

The handle accommodation groove 51 accommodates the handle 50 which is rotated about a rotation axis parallel to the horizontal direction and is turned to the upper surface 31 side. In the present embodiment, a state in which the handle 50 is rotated about the rotation axis and accommodated in the handle accommodation groove 51 is referred to as a folded state of the handle 50. The handle accommodation groove 51 is configured in accordance with the shape of the handle 50. In the present embodiment, since the handle 50 is U-shaped, the handle receiving groove 51 is U-shaped.
The handle accommodation groove 51 has a depth such that the handle 50 does not protrude upward with respect to the portion other than the handle accommodation groove 51 of the upper surface 31 of the main body 30.

  The cargo handling assistance device 10 configured in this manner has a height dimension that can be disposed below the pallet body 21 of the roll box pallet 20. That is, the height of the upper surface 31 of the main body 30 from the ground G is lower than the height from the ground G to the lower end of the pallet main body 21.

  In the present embodiment, the lower end of the pallet body 21 is, for example, the lower ends of the side wall portions 23 and 24. Therefore, in the present embodiment, the height dimension from the ground G to the upper surface 31 is smaller than the distance from the ground G to the lower ends of the side wall portions 23 and 24.

  Furthermore, in the cargo handling assistance device 10, when the cargo handling assistance device 10 is installed on the ground G, the height of the upper surface 31 of the main body 30 from the ground G is, The dimension is set to be lower than the height of the lower end of the pallet body 21 from the ground G.

Next, an example of an operation of loading the roll box pallet 20 on the loading platform 2 of the truck 1 using the cargo handling assistance device 10 will be described. In addition, the loading platform 2 has, as an example, a configuration that can be accessed from the side, and as a specific example, it is a wing body type loading platform. In addition, the laterally accessible carrier is not limited to a wing body type carrier. In another example, it may be a hood type bed. FIG. 1 shows a state in which a part of the wing body type open / close door is omitted.

First, the operator operates the handle 50 to move the cargo handling assistance device 10 close to the roll box pallet 20 loaded on the loading platform 2.
Next, the operator causes the front end of the cargo handling assistance device 10 to face between the two casters 26 of the first side wall portion 23 or the second side wall portion 24 of the roll box pallet 20. In addition, the front end of the cargo handling assistance device 10 mentioned here is the other end with respect to the handle 50 in the longitudinal direction of the main body 30.

  Next, the worker moves the cargo handling assistance device 10 below the roll box pallet 20, between the two casters 26 of the opposite side wall portion of the first side wall portion 23 or the second side wall portion 24. At this time, the cargo handling assistance device 10 is moved toward the other side wall portion. That is, the cargo handling assistance device 10 moves from one side to the other of the side walls 23 and 24 in a posture in which the first direction D1 is parallel or substantially parallel to the direction from the one side of the side walls 23 and 24 to the other. Be done. The worker moves the cargo handling assistance device 10 to a position where the main body 30 vertically opposes the lower ends of the side wall portions 23 and 24.

  The worker moves the cargo handling assistance device 10 until, for example, the handle 50 abuts on the pallet body 21 of the roll box pallet 20. When the loading assistance device 10 is moved until the handle 50 abuts on the pallet main body 21, the main body 30 vertically opposes the lower ends of the side wall portions 23 and 24.

  Next, the worker moves the forklift 5 to move the forklift 5 forward of the roll box pallet 20. The front side of the roll box pallet 20 referred to here is the opening side of the roll box pallet 20, that is, the side facing the rear wall 25. Next, the worker travels and operates the forklift 5 to insert the two claws 6 of the forklift 5 into the two first holes 32 a from the front of the roll box pallet 20 as shown in FIG. 3.

  Next, the operator operates the forklift 5 to lift the two claws 6. When raised, each of the claws 6 abuts on the top surface of the first hole 32a. When the claw 6 is further raised from the state in which the claw 6 abuts on the lower surface of the main body 30, the main body 30 is lifted by the claw 6.

  When lifted, the main body 30 abuts on the lower ends of the side wall portions 23 and 24 of the roll box pallet 20. When the two claws 6 are further raised from the state in which the main body 30 is in contact with the lower ends of the side wall portions 23 and 24, the cargo handling assistance device 10 and the roll box pallet 20 are lifted integrally. As described above, the roll box pallet 20 is lifted by the forklift 5 with the lower ends of the side wall portions 23 and 24 supported by the cargo handling assistance device 10.

  As described above, the resinous cargo handling assisting device 10 is disposed between the metal claw 6 and the metal roll box pallet 20, so that the roll box pallet 20 can be prevented from slipping. Furthermore, the non-slip portion 33 provided on the upper surface 31 abuts on the lower ends of the side wall portions 23 and 24 to further prevent the roll box pallet 20 from slipping on the upper surface 31.

The operator stops raising the two claws 6 when the roll box pallet 20 is lifted to a position higher than the loading platform 2.
When the operator stops raising the two claws 6, next, the forklift 5 is moved to move the roll box pallet 20 from the side onto the loading platform 2. That is, as shown in FIG. 1, the roll box pallet 20 is placed on the loading platform 2 with the back wall 25 facing the inside of the loading platform 2. Note that FIG. 1 shows a state in which the roll box pallet 20 is fully loaded from one of the two sides of the loading platform 2. For this reason, all the roll box pallets 20 on the loading platform 2 are on the loading platform 2 with the front (the side facing the rear wall 25) facing in the same direction (the orientation facing the right in FIG. 1). Is placed on the
However, the roll box pallet 20 is not limited to being loaded from only one of both sides of the loading platform 2. For example, when the roll box pallet 20 is stacked from the other side of the loading platform 2, the roll box pallet 20 to be stacked has a posture in which the side facing the rear wall 25 faces the other direction ( In FIG. 1, it is mounted on the loading platform 2 in a posture facing to the left.
The operator lowers the two claws 6 when the roll box pallet 20 is moved to the predetermined position of the loading platform 2. The predetermined position referred to here is a planned position where the roll box pallet 20 is to be arranged.

  As the two claws 6 are lowered, the two claws 6, the cargo handling assisting device 10, and the roll box pallet 20 are integrally lowered. The operator stops the lowering of the two claws 6 when the two claws 6 are lowered to the position where the four casters 40 of the cargo handling assistance device 10 are placed on the loading platform 2.

  In a state where the four casters 40 of the cargo handling assistance device 10 are placed on the loading platform 2, the four casters 26 of the roll box pallet 20 are placed on the loading platform 2, and the cargo handling assistance device 10 has side wall portions 23 and 24. It is separated from

Next, the operator retracts the forklift 5 to move the claws 6 from under the cargo handling assistance device 10 to the outside of the cargo bed 2. Next, the worker removes the cargo handling assistance device 10 from under the roll box pallet 20. Specifically, the worker operates the cargo handling assistance device 10 between the two casters 26 of the first side wall 23 or the two casters 26 of the second side wall 24 with the handle 50 facing each other. , Unload the cargo handling assistance device 10.

  By these processes, the operation of loading the roll box pallet 20 on the loading platform 2 by the forklift 5 is completed. The operation of unloading the roll box pallet 20 from the loading platform 2 is the reverse of the loading operation described above.

  The cargo handling assistance device 10 configured in this manner is disposed at the lower end of each of the side walls 23 and 24 of the roll box pallet 20 at vertically opposite positions. When the roll box pallet 20 is lifted by the forklift 5, the lower ends of the side wall portions 23 and 24 are supported by the cargo handling assistance device 10.

  Thus, by using the cargo handling assistance device 10, the two claws 6 of the forklift 5 slip against the roll box pallet 20 since the two claws 6 of the forklift 5 do not directly abut the roll box pallet 20. There is no For this reason, even if the roll box pallet 20 is lifted by the forklift 5, the roll box pallet 20 can be prevented from falling, so the safety of the loading and unloading operation of the roll box pallet 20 on the loading platform 2 can be improved. Furthermore, since the roll box pallet 20 can be loaded and unloaded from the loading platform 2 by the forklift 5, no platform is required. For this reason, the efficiency of loading and unloading operations of the roll box pallet 20 to the loading platform 2 can be improved.

  Furthermore, the non-slip portion 33 is provided on the upper surface 31 of the main body 30, so that the roll box pallet 20 can be prevented from sliding relative to the cargo handling assistance device 10.

  Furthermore, since the forklift 5 can be used, the roll box pallet 20 can be loaded and unloaded from the side with respect to the loading platform 2. As it becomes possible to unload the cargo box 2 from the side, the roll box pallet 20 can be efficiently unloaded to the cargo box 2.

  That is, for example, when the roll box pallet 20 is to be lowered from the opening at the rear end of the cargo bed 2 to the cargo box 2, it is necessary to sequentially lower the roll box pallet 20 at a position close to the opening. Furthermore, when loading the roll box pallet 20, it is necessary to stack the roll box pallet 20 in order on the back side of the loading platform 2 in consideration of the order of unloading.

  However, by loading and unloading the roll box pallet 20 from the side of the cargo bed 2, it becomes possible to unload the roll box pallet 20 at any position of the cargo bed 2. Furthermore, it is also possible to load the roll box pallet 20 in the empty space of the loading platform 2.

  For example, when the load is stored in the roll box pallets 20 assigned to a plurality of transport destinations by the truck 1 and transported, the roll box pallets 20 to be unloaded regardless of the positions of the respective roll box pallets 20 in the loading platform 2 It is possible to

  Furthermore, when the roll box pallet 20 is lifted by the forklift 5, the main body 30 has the two first holes 32a and the two second holes 32b in which the two claws 6 of the forklift 5 can be disposed. When the upper surface of the claw 6 is inclined with respect to the horizontal direction, the claw 6 abuts on the bottom surface of the first hole 32a or the second hole 32b into which the claw 6 is inserted.

  The contact of the claw 6 with the bottom surface of the hole prevents the upper surface 31 of the main body 30 from being greatly inclined. Since the upper surface 31 can be prevented from being largely inclined, the roll box pallet 20 can be stably placed on the cargo handling assistance device 10.

  Furthermore, the claws 6 of the forklift 5 do not directly contact the bottom wall 22 of the roll box pallet 20. For this reason, even if the locking mechanism for locking the bottom wall 22 of the roll box pallet 20 in a posture in which the load M can be placed is broken, the claw 6 bounces up the bottom wall 22 (about the rotation axis There is no turning). As described above, since the bottom wall portion 22 is not flipped up by the claws 6, it is possible to prevent the load M placed on the bottom wall portion 22 from falling and breakage of the roll box pallet 20. it can.

  Next, a cargo handling assistance device 10A according to a second embodiment of the present invention will be described using FIGS. 4 to 7. In addition, the structure which has a function similar to 1st Embodiment attaches | subjects the code | symbol same as 1st Embodiment, and abbreviate | omits description.

  FIG. 4 is a plan view showing the cargo handling assistance device 10A. FIG. 5 is a cross-sectional view of the cargo handling assistance device 10A shown along the line F5-F5 shown in FIG. 6 is a cross-sectional view of the cargo handling assistance device 10A shown along the line F6-F6 shown in FIG. FIG. 7 is a plan view showing a state in which the first support member 60 and the second support member 70 used in the cargo handling assistance device 10A are moved to the maximum projecting position with respect to the main body 30A.

As shown in FIGS. 4 to 7, the cargo handling assistance device 10A includes a main body 30A, a first support member 60, a second support member 70, an operation unit 80, a conversion mechanism 90, and a plurality of casters 40. And the handle 50.
The main body 30A is configured in a shape having a predetermined thickness, and as an example, the outer appearance is configured in a rectangular shape. The predetermined thickness said here is the thickness which can form the hole which can arrange the nail | claw 6 of the forklift 5 in the thickness of 30 A of main bodies. The main body 30A is made of a resin material.

  In the main body 30A, a length from one end to the other end along the first direction D1 is provided to the caster 26 provided at the front end of the first side wall portion 23 and to the front end of the second side wall portion 24. It has a dimension shorter than the distance between it and the caster 26. Furthermore, the main body 30A has a length along the second direction D2 from the one end in the second direction D2 to the handle 50 longer than the distance from the front end of the bottom wall 22 of the roll box pallet 20 to the rear wall 25 It has dimensions.

Specifically, a distance L5 from one of two opposing sides of the upper surface 31A of the main body 30A to the handle 50 is a distance L6 from the front end of the bottom wall 22 of the roll box pallet 20 to the rear wall 25 It has a longer dimension than that shown in FIG.
Furthermore, of the caster 26 provided at the front end of the first side wall portion 23 of the roll box pallet 20 and the length of the second side wall portion 24, the length L 7 between the other two opposite sides of the four sides of the upper surface 31 A The distance between the caster 26 provided at the front end and the caster 26 provided at the rear end of the first side wall 23 and the caster 26 provided at the rear end of the second side wall 24 It is comprised in the rectangular plate shape which has a dimension shorter than the distance (shown in FIG. 1).
The distance between the caster 26 provided at the front end of the first side wall portion 23 of the roll box pallet 20 and the caster 26 provided at the front end of the second side wall portion 24 The distance between the caster 26 provided at the rear end of the first side wall portion 23 and the caster 26 provided at the rear end of the second side wall portion 24 is equal as an example in this embodiment, and the distance L8 (Shown in FIG. 1). That is, the length L7 has a dimension shorter than the distance L8.

  The distance L8 between the caster 26 provided at the front end of the first side wall portion 23 and the caster 26 provided at the front end of the second side wall portion 24 mentioned here is the front end of the first side wall portion 23 The rotation axes of the provided caster 26 and the caster 26 provided at the front end of the second side wall portion 24 are, for example, distances when the posture is parallel to the second direction D2.

  A distance L8 between the caster 26 provided at the front end of the first side wall portion 23 and the caster 26 provided at the front end of the second side wall portion 24 is provided at the front end of the first side wall portion 23 The rotation axis of each of the caster 26 and the caster 26 provided at the front end of the second side wall portion 24 may be a distance when it is in a posture parallel to the first direction D1.

  In short, regardless of the posture of the caster 26 provided at the front end of each of the side walls 23 and 24 and the posture of the caster 26 provided at the rear end of each of the side walls 23 and 24, the length L7 Between the two casters 26 and the two casters 26 at the rear end, the size may be such that the cargo handling assist device 10 can be disposed.

  Further, on the upper surface 31A of the main body 30A, the first groove 102 for supporting the first support member 60 movably in the first direction D1, and the second support member 70 can be moved in the first direction D1. And a third groove 104 for accommodating the conversion mechanism 90, and a fourth groove 105 for accommodating the operation portion 80.

  The first groove 102 has a width dimension shorter than the distance between the casters 26 at the front and rear ends of the first side wall portion 23. The first groove 102 is located at a position below the roll box pallet 20 and when the main body 30A vertically opposes the rear wall 25 of the roll box pallet 20. Between the two casters 26 of the side wall portion 23 in the first direction D1.

  A retaining portion 102a is formed at the upper end of each of both edges of the first groove 102 in the second direction D2. The retaining portion 102 a is configured by a projecting portion that protrudes into the first groove 102. The retaining portion 102a is formed, as an example, between both ends in the first direction D1.

  The second groove 103 has a width dimension shorter than the distance between the casters 26 at the front and rear ends of the second side wall portion 24. The second groove 103 is a second side wall portion when the cargo handling assistance device 10A is disposed below the roll box pallet 20 and the main body 30A is opposed to the rear wall 25 of the roll box pallet 20. The two castors 24 are opposed to each other in the first direction D1.

  At the upper end of each of both edges of the second groove 103 in the second direction D2, a retaining portion 103a configured similarly to the retaining portion 102a provided in the first groove 102 is formed. . The retaining portion 103 a is configured by a protruding portion that protrudes into the second groove 103. The retaining portion 103a is formed, as an example, between both ends in the first direction D1.

The third groove 104 is formed between the first groove 102 and the second groove 103. The third groove 104 is in communication with the first groove 102 and the second groove 103.
The fourth groove 105 is formed in the range from the side end on the handle 50 side of the main body 30A to the third groove 104.

  The first support member 60 is, for example, formed in a plate shape. The first support member 60 is accommodated in the first groove 102 so as to be movable in the first direction D1. The upper surface 61 of the first support member 60 is configured to be flush with the upper surface 31A of the main body 30A. The width (length in the second direction D2) of the first support member 60 is shorter than the distance between the castors 26 at the front and rear ends of the first side wall portion 23.

  As shown in FIG. 5, engaging portions 62 are formed on both end portions of the upper surface 61 of the first support member 60 in the second direction D2. The engaging portion 62 faces the retaining portion 102a in the thickness direction of the main body 30A.

  Specifically, the engagement portion 62 is configured by lowering the upper surface 61 by one step in the thickness direction of the first support member 60. A gap is provided between the engaging portion 62 and the retaining portion 102a to such an extent that the first support member 60 can be moved along the first direction D1. The portion other than the engaging portion 62 of the upper surface 61 is configured to be a flat surface flush with the upper surface 31A of the main body 30A. The abutment of the first support member 60 and the retaining portion 102 a prevents the first support member 60 from coming off from the first groove 102.

  The second support member 70 is, for example, formed in a plate shape. The second support member 70 is movably accommodated in the second groove 103 in the first direction D1. The upper surface 71 of the second support member 70 is configured as a flat surface flush with the upper surface 31A of the main body 30A. The width (length along the second direction D2) of the second support member 70 is shorter than the distance between the casters 26 at the front and rear ends of the second side wall portion 24. Engaging portions 72 are formed on both end portions of the upper surface 71 of the second support member 70 in the second direction D2. The engaging portion 72 faces the retaining portion 103a in the thickness direction of the main body 30A.

  The engaging portion 72 is configured in the same manner as the engaging portion 62, and more specifically, is configured by lowering the upper surface 71 one step in the thickness direction of the second support member 70. A gap is provided between the engaging portion 72 and the retaining portion 103a to allow movement of the second support member 70 in the first direction D1. The portion other than the engaging portion 72 of the upper surface 71 is configured to be a flat surface flush with the upper surface 31A of the main body 30A. The abutment of the second support member 70 and the retaining portion 103 a prevents the second support member 70 from coming off the first groove 102.

  The operating unit 80 is operated by the operator when moving the support members 60 and 70 in the first direction D1. The operation unit 80 receives an operation of pushing by an operator, as an example in the present embodiment. The operation part 80 is comprised by the rod member as an example.

  The conversion mechanism 90 is configured, as an example, in a link mechanism that becomes a rhombus in plan view. As shown in FIGS. 5 and 7, the conversion mechanism 90 is expanded and contracted in the second direction D2 to change the length in the first direction D1. Specifically, the conversion mechanism 90 expands in the first direction D1 when being contracted in the second direction D2, and is contracted in the second direction when being expanded in the second direction.

One end of the operation unit 80 is fixed to the conversion mechanism 90. The conversion mechanism 90 is contracted in the second direction D2 by the operation unit 80 being pushed into the fourth groove 105.
One end of the conversion mechanism 90 in the first direction D1 is in contact with the first support member 60. The other end of the conversion mechanism 90 in the first direction D1 is in contact with the second support member 70. The conversion mechanism 90 extends the first direction D1 to move the first support member 60 and the second support member 70 in the first direction D1 so as to project relative to the main body 30A.

  The dimensions of the conversion mechanism 90, the first support member 60, and the second support member 70 are set to be switchable between the first state S1 and the second state S2.

  In the first state S1, as shown in FIG. 7, the lower end of the first side wall portion 23 of the roll box pallet 20 is opposed by the first support member 60 projecting with respect to the main body 30A, and The second support members 70 project from the main body 30A so as to face the lower end of the second side wall portion 24 of the roll box pallet 20.

  In the first state S1, a distance L9 between the tip 63 of the first support member 60 in the protrusion direction with respect to the main body 30A and the tip 73 of the second support member 70 in the protrusion direction with respect to the main body 30A is It is longer than the distance L2 (shown in FIG. 1) between the first side wall 23 and the second side wall 24 of the pallet 20.

  The second state is S2, as shown in FIG. 4, the distance L9 between the tip 63 of the first support member 60 and the tip 73 of the second support member 70 is The distance L8 (shown in FIG. 3) between the caster 26 provided at the front end and the caster 26 provided at the front end of the second side wall portion 24 is shorter.

  In the present embodiment, in the second state S2, as an example, the tip 63 of the first support member 60 and the tip 73 of the second support member 70 are the same as the side ends of the main body 30A in the first direction D1. Placed in position. Therefore, in the second state S2, the distance L9 is the same as the distance L7.

  In the second state S2, the tips 63 and 73 may be respectively disposed inside the side end of the main body 30A in the first direction D1. In this case, the distance L9 is shorter than the distance L7. Alternatively, in the second state S2, at least one of the tips 63 and 73 may project in the first direction D1 from the side end of the main body 30A in the first direction D1. In this case, the distance L9 is longer than the distance L7.

  Further, as shown in FIGS. 4, 6 and 7, each of the first support member 60 and the second support member 70 has a cover that covers a part of the conversion mechanism 90. Specifically, the first support member 60 has a first cover 64. The second support member 70 has a second cover 74.

  The first cover portion 64 is a portion opposite to the tip 63 in the first direction D1 and has a gap between the lower surface of the first groove 102 and the lower surface of the second groove 103. There is. A part of the conversion mechanism 90 is disposed in this gap.

  The second cover 74 is a portion opposite to the tip 73 in the first direction D1 and has a gap between the lower surface of the first groove 102 and the lower surface of the second groove 103. There is. A part of the conversion mechanism 90 is disposed in the gap. The first cover portion 64 and the second cover portion 74 abut each other to cover the third groove 104 when the first support member 60 and the second support member 70 are in the second state S2. .

  Also, the main body 30A has two first holes 32a for lift up and two second holes 32b. The first hole 32a penetrates the main body 30A in the second direction D2 as in the first embodiment. The second hole 32b penetrates the main body 30A in the first direction D1 as in the first embodiment.

For example, one caster 40 is provided at each of four corners of the lower surface of the main body 30A.
The handle 50 is provided on one end of the upper surface 31A of the main body 30A in the lateral direction.

  The cargo handling assistance device 10A configured in this manner has a height dimension that can be disposed below the pallet body 21 of the roll box pallet 20. That is, the height of the upper surface 31A of the main body 30A from the ground G is lower than the height from the ground G to the lower end of the pallet main body 21.

  Moreover, the non-slip part 33 is provided in the upper surface 31A and the upper surfaces 61 and 71 of the cargo handling assistance apparatus 10A comprised in this way. The anti-slip portion 33 extends from one end to the other end of the upper surface 31A, 61, 71 in the first direction D1 as an example, and a plurality of anti-slip portions 33 are provided. The plurality of non-slip portions 33 are spaced apart in the second direction D2.

  Next, an example of an operation of loading the roll box pallet 20 on the loading platform 2 of the truck 1 using the cargo handling assistance device 10A will be described. As shown in FIG. 1, first, the operator operates the handle 50 to move the cargo handling assistance device 10 close to the roll box pallet 20 loaded on the loading platform 2.

  Next, the operator causes the front end of the cargo handling assistance device 10A to face between the caster 26 at the front end of the first side wall portion 23 of the roll box pallet 20 and the caster 26 at the front end of the second side wall portion 24. . At this time, the first support member 60 and the second support member 70 are moved to the position in the second state S2. The front end of the cargo handling assistance device 10A referred to here is the other end with respect to the handle 50 of the main body 30.

  Next, the worker moves the cargo handling assistance device 10A under the roll box pallet 20, between the caster 26 at the front end of the first side wall portion 23 and the caster 26 at the front end of the second side wall portion 24. . At this time, the cargo handling assistance device 10A is moved toward the rear of the roll box pallet 20. That is, the cargo handling assistance device 10A has a posture in which the second direction D2 is parallel or substantially parallel to the direction from the front end to the rear end of the roll box pallet 20 (the direction from the opening at the front end toward the rear wall 25). , Is moved toward the rear of the roll box pallet 20. The worker moves the cargo handling assistance device 10A to a position where the main body 30A vertically opposes the lower end of the rear wall 25.

  The worker moves the cargo handling aid 10A backward along the second direction D2 until, for example, the handle 50 abuts on the bottom wall 22 of the roll box pallet 20. When the handle 50 is moved until it abuts on the bottom wall 22, the main body 30A vertically opposes the lower end of the rear wall 25. The worker stops the movement of the cargo handling assistance device 10A when the main body 30A moves to a position facing the lower end of the rear wall 25 as shown in FIG.

  Next, the operator pushes the operation unit 80 to extend the conversion mechanism 90 in the first direction D1, and the first support member 60 and the second support member 70 are moved from the second state S2 to the second state S2. It moves to the position which becomes 1 state S1.

  In the cargo handling assistance device 10A, the first support member 60 is moved to the position where the first support member 60 and the second support member 70 are in the first state S1, so that the first support member 60 is the lower end of the first side wall portion 23. And the second support member 70 faces the lower end of the second side wall portion 24.

  Next, the worker moves the forklift 5 to move the forklift 5 forward of the roll box pallet 20. Next, the worker travels and operates the forklift 5 to insert the two claws 6 of the forklift 5 into the two first holes 32 a.

  Next, the operator operates the forklift 5 to lift the two claws 6. When the two claws 6 are lifted, each of the two claws 6 abuts on the top surface of the first hole 32a. When the claw 6 is further raised from the state in which the claw 6 abuts on the upper surface of the first hole 32 a, the main body 30A is lifted by the two claws 6.

  When the main body 30A is lifted, the main body 30A abuts on the lower end of the rear wall 25 of the roll box pallet 20, the first support member 60 abuts on the lower end of the first side wall 23, and the second support 70 Contacts the lower end of the second side wall 24. When the two claws 6 are further raised from this abutting state, the cargo handling assistance device 10A and the roll box pallet 20 are lifted together by the two claws 6.

  As described above, the roll box pallet 20 is lifted by the forklift 5 in a state where the lower ends of the side wall portions 23 and 24 and the lower end of the rear wall 25 are supported by the cargo handling assistance device 10A.

  The operator stops raising the two claws 6 when the roll box pallet 20 is lifted to a position higher than the loading platform 2. When the operator stops raising the two claws 6, next, the forklift 5 is moved to move the roll box pallet 20 onto the loading platform 2. The operator lowers the claws 6 when the roll box pallet 20 is moved to a predetermined position of the loading platform 2. The predetermined position referred to here is a planned position where the roll box pallet 20 is to be arranged.

  As the claws 6 are lowered, the claws 6, the cargo handling assisting device 10A, and the roll box pallet 20 are integrally lowered. When the operator lowers the two claws 6 to a position where the four casters 40 of the cargo handling assistance device 10A are placed on the loading platform 2, the lowering of the two claws 6 is stopped.

Next, the worker moves the forklift 5 to move the two claws 6 from under the cargo handling assistance device 10A to the outside of the cargo bed 2.
Next, the worker switches the cargo handling assistance device 10A from the first state S1 to the second state S2 by, for example, pushing the first support member 60 and the second support member 70 inward. Next, the operator manually pulls the cargo handling assistance device 10A from under the roll box pallet 20 between the caster 40 at the front end of the first side wall portion 23 and the caster 40 at the front end of the second side wall portion 24. .
In addition, the operation | work which withdraws the cargo handling assistance apparatus 10A from the downward direction of the roll box pallet 20 is not limited to the thing by a worker's manual work. For example, the cargo handling assistance device 10A may be extracted using a forklift 5. An example of the operation in the case of moving the cargo handling assistance device 10A from the lower side of the roll box pallet 20 by the forklift 5 is to first lower the claw 6 when moving the roll box pallet 20 to a predetermined position of the loading platform 2 While the four casters 26 of the roll box pallet 20 abut on the bed 2, the four casters 40 of the cargo handling aiding apparatus 10A do not abut against the bed 2, and the cargo handling aiding apparatus 10A starts from the lower end of the roll box pallet 20. The claw 6, the cargo handling assist device 10A, and the roll box pallet 20 are lowered to the separated position. In this state, the cargo handling assistance device 10A is maintained supported by the two claws 6. Next, the worker switches the cargo handling assistance device 10A from the first state S1 to the second state S2 by, for example, pushing the first support member 60 and the second support member 70 inward. Next, the worker causes the forklift 5 to travel to move the cargo handling assistance device 10A supported by the claw 6 to the caster 40 at the front end of the first side wall 23 and the caster 40 at the front end of the second side wall 24. Remove from under the roll box pallet 20 through the gap.

  By these processes, the operation of loading the roll box pallet 20 on the loading platform 2 by the forklift 5 is completed. The operation of unloading the roll box pallet 20 from the loading platform 2 is the reverse of the loading operation described above.

  In the cargo handling assistance device 10A of the present embodiment, the same effects as in the first embodiment can be obtained.

Furthermore, since the cargo handling assistance device 10A supports the lower end of the first side wall 23, the lower end of the second side wall 24, and the lower end of the rear wall 25 of the roll box pallet 20, the roll box pallet 20 It is supported more stably.
Furthermore, the cargo handling assistance device 10A can be extracted from below the roll box pallet 20 through between the caster 26 at the front end of the first side wall 23 and the caster 26 at the front end of the second side wall 24. For this reason, the cargo handling assistance device 10A can be removed from the side of the loading platform 2.
For this reason, as shown in FIG. 1, even when a plurality of roll box pallets 20 are mounted on the cargo bed 2 without a gap, the cargo handling assistance device 10A can be removed from the lower side of the roll box pallet 20. It becomes. In this case, being placed without a gap means that it is possible to take out the cargo handling assistance device 10A between two adjacent roll box pallets 20 and between the inner wall surface of the loading platform 2 and the roll box pallet 20. There is no space to
As a result, it is possible to carry out the operation of loading a plurality of roll box pallets 20 on the loading platform 2 and the operation of unloading the plurality of roll box pallets 20 loaded on the loading platform 2 without a gap using one cargo handling auxiliary device 10A. It becomes. Therefore, by mounting one cargo handling assistance device 10A on the truck 1, it is possible to load the roll box pallets 20 on the loading platform 2 using the one cargo handling assistance device 10A, And, it becomes possible to unload the plurality of roll box pallets 20 loaded in the loading platform 2.

  Next, the support structure of the caster 40 of the cargo handling assistance device according to the third embodiment will be described with reference to FIG. In addition, the structure which has a function similar to 1st Embodiment attaches | subjects the code | symbol same as 1st Embodiment, and abbreviate | omits description.

  In the present embodiment, the support structure of the caster 40 and the structure around the caster 40 of the main body 30 are different from those of the first embodiment. The other structure is the same as that of the first embodiment, so the description will be omitted. FIG. 8 is an explanatory view schematically showing the periphery of the caster 40 of the cargo handling assistance device 10 of the third embodiment.

  As shown in FIG. 8, in the present embodiment, the caster 40 is supported on the main body 30 by the elastic body 120. Further, the main body 30 is formed with a housing portion 121 for housing a part of the caster 40 and the elastic body 120. The housing portion 121 is formed of, for example, a recess formed on the lower surface 34 of the main body 30.

  The elastic body 120 is configured to be extensible and contractible in the vertical direction. The elastic body 120 is, for example, a coil spring. The elastic body 120 separates the lower surface 34 of the main body 30 from the ground G in a state where the load M is not placed on the upper surface 31 of the main body 30.

  Furthermore, the elastic body 120 has a shrinking margin in the state where the load M is not placed on the upper surface 31. When a load M having a weight equal to or greater than a predetermined weight is placed on the upper surface 31, the elastic body 120 causes the lower surface 34 to contact the ground G by contracting.

  The predetermined weight said here can be determined arbitrarily. For example, it may be the weight of a type of luggage that is frequently transported. By placing a load of this type on the cargo handling assistance device 10 by setting the weight of the type of load that is frequently transported to a predetermined weight, the lower surface 34 of the main body 30 is placed on the ground G by the elastic body 120 contracting. The travel of the cargo handling assistance device 10 is restricted by being abutted. For this reason, the cargo handling assistance device 10 can be used as a pallet.

In the cargo handling assistance device of the present embodiment, the same effects as in the first embodiment can be obtained.
Furthermore, it becomes possible to use the cargo handling assistance device 10 of the present embodiment as a pallet.

  As described above, according to the first to third embodiments, it is possible to provide a cargo handling assistance device capable of improving the efficiency and safety of loading and unloading operations of a roll box pallet to a loading platform, and a method of lifting the roll box pallet. It becomes.

  In the first to third embodiments, an example in which the handle 50 is used as a stopper for restricting the movement of the cargo handling assistance device 10, 10A with respect to the roll box pallet 20 by contacting the roll box pallet 20. Although described, it is not limited thereto. The stopper may be, in another example, a projection provided on the upper surface 31, 31A.

  In the first to third embodiments, the non-slip portion 33 has been described as an example formed of a tape member having a relatively high coefficient of friction, but is not limited thereto. The non-slip portion 33 may have any configuration as long as the roll box pallet 20 can be prevented from slipping. In addition, an example in which the non-slip portion 33 is configured to extend from one end to the other end in the first direction D1 of the upper surface (including the upper surfaces 31, 31A, 61, 71) of the main bodies 30, 30A is described. Although it is not limited to this. The non-slip portion 33 is preferably provided at a portion that abuts on the roll box pallet 20.

  Further, in the second embodiment, the operation unit 80 is configured by a rod member, and the configuration to be operated by being pushed by the operator has been described as an example, but is not limited thereto. The operation unit 80 may have any configuration that can be operated by a worker.

  In the second embodiment, the conversion mechanism 90 has been described as an example in which the parallel link mechanism has a diamond shape in plan view, but the present invention is not limited to this. The conversion mechanism 90 may be configured to be able to switch between the first state S1 and the second state S2 by converting the operation input to the operation unit 80 into the support members 60 and 70 into movement.

The present invention is not limited to the above embodiment, and can be variously modified in the implementation stage without departing from the scope of the invention. In addition, the embodiments may be implemented in combination as appropriate, in which case the combined effect is obtained. Furthermore, various inventions are included in the above-described embodiment, and various inventions can be extracted by a combination selected from a plurality of disclosed configuration requirements. For example, even if some configuration requirements are deleted from all the configuration requirements shown in the embodiment, the problem can be solved, and if an effect is obtained, a configuration from which this configuration requirement is removed can be extracted as the invention.
In the following, the invention described in the original claims of the present application is appended.
[1]
A cargo handling station disposed under a roll box pallet provided with a bottom wall, two side walls, a rear wall, and a first caster provided on each of front and rear ends of lower ends of the two side walls. An auxiliary device,
A stopper protruding from the upper surface, and a length along the first direction from one end of the first direction to the stopper has a dimension longer than a distance between the two side wall portions, the first The length of the second direction orthogonal to the direction has a dimension shorter than the distance between the first casters respectively provided at the front and rear ends of the side wall portion, and a hole in which the fork of a forklift can be disposed With the body formed,
A second caster provided on the main body to make the main body movable;
Cargo handling assistance device equipped with.
[2]
Arranged below a roll box pallet comprising a bottom wall, two side walls, a rear wall and a first caster, one at each of the front and rear ends of the lower end of each of the two side walls. Cargo handling assistance device
A stopper protruding from the upper surface, and a length in a first direction being a distance between the first caster provided at a front end of each of the two side wall portions and a distance between the first caster provided at each rear end Has a dimension shorter than the distance between 1 caster, and the length from one end of the second direction orthogonal to the first direction to the stopper is the distance from the front end of the bottom wall portion to the back wall portion A body having a longer dimension and having a hole formed therein in which the fork of a forklift can be placed;
A first support member movably supported in the first direction on the body;
A second support member movably supported in the first direction on the body;
A second caster provided on the main body to make the main body movable;
Equipped with
The first support member and the second support member are
The first support member projects with respect to the main body in one direction of the first direction, and the second support member projects with respect to the main body in the other direction of the first direction. A first state in which the distance between the tip of the support member and the tip of the second support member is longer than the distance between the two side walls;
A second distance between the tip of the first support member and the tip of the second support member is shorter than a distance between the first castors provided at front ends of the two side wall portions. The state of,
Move between
A cargo handling assistance device characterized by
[3]
An elastic body for supporting the second caster on the main body, wherein the lower surface of the main body is not in contact with the traveling surface of the second caster in a state where a load directed downward to the main body is not input. And an elastic body which brings the lower surface into contact with the traveling surface by contracting when a load of a predetermined value or more directed downward is input to the body.
The cargo handling assistance device according to [1] or [2], comprising:
[4]
The cargo handling assistance device according to any one of [1] to [3], including a non-slip portion provided on the upper surface of the main body.
[5]
Load handling under a roll box pallet having a bottom wall, two side walls, a rear wall, and a first caster provided one on each of the front and rear ends of the lower end of each of the two side walls. Arrange auxiliary equipment,
Arranging the claws in the holes of the cargo handling assisting device, in which the claws of the forklift can be arranged;
The lifting aid is brought into contact with the roll box pallet by raising the claws, and the lifting aid and the roll box pallet are integrally lifted.
How to lift roll box pallets.

  DESCRIPTION OF SYMBOLS 1 ... Truck 2, a loading platform, 5 ... forklift, 6 ... claw, 10 ... cargo handling assistance device, 10A ... cargo handling assistance device, 20 ... roll box pallet, 21 ... pallet main body, 22 ... bottom wall part, 23 ... 1st Side wall portion 24 24 second side wall portion 25 back wall portion 26 caster (first caster) 30 main body 30 A main body 31 A top surface 34 lower surface 40 caster second 60) first support member 70; second support member 80: operation unit 90: conversion mechanism 120: elastic body.

Claims (5)

A cargo handling station disposed under a roll box pallet provided with a bottom wall, two side walls, a rear wall, and a first caster provided on each of front and rear ends of lower ends of the two side walls. An auxiliary device,
A stopper protruding from the upper surface, and a length along the first direction from one end of the first direction to the stopper has a dimension longer than a distance between the two side wall portions, the first The length in the second direction orthogonal to the direction has a dimension shorter than the distance between the first casters respectively provided on the front and rear ends of the side wall portion, and a hole into which the fork of a forklift can be inserted With the body formed,
A second caster provided on the main body to make the main body movable;
Equipped with
The cargo handling assistance device whose height from the lower end of said 2nd caster to said upper surface is lower than the height from the lower end of said 1st caster to each lower end of said two side wall parts . Arranged below a roll box pallet comprising a bottom wall, two side walls, a rear wall and a first caster, one at each of the front and rear ends of the lower end of each of the two side walls. Cargo handling assistance device
A stopper protruding from the upper surface, and a length in a first direction being a distance between the first caster provided at a front end of each of the two side wall portions and a distance between the first caster provided at each rear end Has a dimension shorter than the distance between 1 caster, and the length from one end of the second direction orthogonal to the first direction to the stopper is the distance from the front end of the bottom wall portion to the back wall portion A body having a longer dimension and having a hole formed therein in which the fork of a forklift can be placed;
A first support member movably supported in the first direction on the body;
A second support member movably supported in the first direction on the body;
A second caster provided on the main body to make the main body movable;
Equipped with
The first support member and the second support member are
The first support member projects with respect to the main body in one direction of the first direction, and the second support member projects with respect to the main body in the other direction of the first direction. A first state in which the distance between the tip of the support member and the tip of the second support member is longer than the distance between the two side walls;
A second distance between the tip of the first support member and the tip of the second support member is shorter than a distance between the first castors provided at front ends of the two side wall portions. The state of,
A cargo handling assistance device characterized by moving between them. An elastic body for supporting the second caster on the main body, wherein the lower surface of the main body is not in contact with the traveling surface of the second caster in a state where a load directed downward to the main body is not input. And an elastic body which brings the lower surface into contact with the traveling surface by contracting when a load of a predetermined value or more directed downward is input to the body.
The cargo handling assistance device according to claim 1 or 2, further comprising:   The cargo handling assistance device according to any one of claims 1 to 3, further comprising a non-slip portion provided on an upper surface of the main body. Under a roll box pallet provided with a bottom wall, two side walls, a rear wall and a first caster provided one on each of the front and rear ends of the lower end of each of the two side walls , Moving the loading assistance device between the two first castors ;
Insert the forks of the forklift into the holes of the cargo handling assistance device,
A method of lifting a roll box pallet by bringing the cargo handling aid device into contact with the two side walls of the roll box pallet by raising the claws and lifting the cargo handling aid device and the roll box pallet together.