Pallet and pallet mounting device

Abstract

To provide a pallet and a pallet mounting device capable of improving the efficiency and shortening the time required for loading and unloading a pallet loaded with cargo. [Solution] The flat pallet 10 comprises an upper plate 11 with a cargo loading surface 11A arranged on its surface, and a girder 12 supporting the upper plate 11 from the back side of the loading surface 11A. It also comprises a recess 13 arranged on the loading surface 11A and having a central axis C1 parallel to the support direction of the girder 12, and a protrusion 15 formed to protrude into a shape that can engage with the recess, having a central axis C2 extending parallel to the central axis C1.

Description

[Technical Field]

[0001] The present invention relates to a pallet and a pallet mounting device. [Background technology]

[0002] In cargo handling operations, pallets are used to mechanize and reduce labor required for operations such as storing, transporting, and loading cargo (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-178355 Summary of the Invention [Problem to be solved by the invention]

[0004] When loading and unloading palletized cargo onto trucks, railroad containers, etc., it is necessary to position and unpack the pallets inside the truck or railroad container using straps or the like. However, these tasks are still performed manually, which is a heavy workload and takes a lot of time. An object of the present invention is to provide a pallet and a pallet mounting device that can improve the efficiency and shorten the time required for loading and unloading work onto trucks, railway containers, etc. [Means for solving the problem]

[0005] In order to solve the above problems, the present invention employs the following means. The pallet according to the present invention comprises a flat surface on which a cargo loading surface is disposed, and a support portion protruding from the rear surface of the loading surface to support the flat surface, and a recessed portion formed in a substantially cylindrical shape on the loading surface and having a central axis parallel to the support direction of the support portion, and a recessed portion having a central axis coinciding with the central axis and capable of engaging with the recessed portion. In the depth direction of the recessand a convex portion formed in an approximately cylindrical shape that protrudes from the support portion and can be immersed in the concave portion, and the concave portion and the convex portion are arranged at three locations that correspond to the vertices of an equilateral triangle when viewed in a plan view from the loading surface side.

[0006] The pallet according to the present invention comprises a flat surface on which a load surface for carrying cargo is disposed, and a support portion protruding from the back surface of the load surface to support the flat surface, and has a central axis parallel to the support direction of the support portion and extending from the load surface. Roughly cylindrical a protruding protrusion and the central axis Match The protrusion has a central axis and is engageable with the protrusion, the protrusion having a depth direction. The support portion is formed in a substantially cylindrical shape. and a recessed portion disposed The recessed and protruding portions are arranged at three locations corresponding to the vertices of an equilateral triangle when viewed from the loading surface side. do.

[0009] In addition, the pallet mounting device according to the present invention is provided with a base portion that is formed so as to be fixed to the floor surface on which the pallet according to the present invention is placed, and has the recessed portion arranged on its surface, to which the pallet is engaged.

[0010] In addition, the pallet mounting device of the present invention is provided with a base portion that is formed so as to be fixed to the floor surface on which the pallet of the present invention is placed, and has the convex portion arranged on its surface, to which the pallet is engaged. [Effects of the Invention]

[0011] According to the present invention, it is possible to improve the efficiency and shorten the time required for loading and unloading pallets loaded with cargo. [Brief explanation of the drawings]

[0012] [Figure 1] 1A and 1B are a plan view and a side view showing a pallet according to a first embodiment of the present invention. [Figure 2] 1A and 1B are a plan view and a side view showing a pallet mounting device according to a first embodiment of the present invention. [Figure 3] 1A and 1B are a plan view and a side view showing a state in which a flat pallet according to a first embodiment of the present invention is mounted on a loading platform. [Figure 4]10A and 10B are a plan view and a side view showing a pallet according to a second embodiment of the present invention. [Figure 5] 10A and 10B are a plan view and a side view showing a pallet mounting device according to a second embodiment of the present invention. [Figure 6] 3A and 3B are a plan view and a side view showing a state in which the flat pallet according to the first embodiment of the present invention is loaded onto a loading platform in another way. DETAILED DESCRIPTION OF THE INVENTION

[0013] (First embodiment) A first embodiment of the present invention will be described with reference to FIGS. The flat pallet (pallet) 10 of this embodiment comprises an upper plate (flat portion) 11 on whose surface a loading surface 11A for carrying cargo P is arranged, and a girder (support portion) 12 that supports the upper plate from the back side of the loading surface 11A.

[0014] The upper plate 11 is formed in a substantially square shape in a plan view. The beams 12 are arranged parallel to each other at a predetermined interval at the end and center of the rear side of the upper plate 11, and are formed with fork insertion openings 12A through which the forks of a forklift (not shown) are inserted.

[0015] On the loading surface 11A side at the position where the upper plate 11 is connected to the girder 12, recesses 13 having a central axis C1 extending in the support direction by the girder 12 are arranged at three locations corresponding to the vertices of an equilateral triangle when viewed in a plane from the loading surface 11A side.

[0016] The depth of the recess 13 is approximately half the overall height of the flat pallet 10, and the recess 13 is formed in a substantially cylindrical shape. The entrance and tip of the recess 13 each have a concave tapered surface (not shown).

[0017] The girder 12 has three protrusions 15 formed in a generally cylindrical shape that have a central axis C2 coinciding with the central axis C1 and are engageable with the recess 13. The protrusions 15 are formed so that their outer diameter is smaller than the inner diameter of the recess 13 and their height is smaller than the depth of the recess 13, so that they can be recessed into the recess 13. A convex tapered surface (not shown) is formed at the tip of each of the protrusions 15.

[0018] The pallet mounting device 16 is used when loading a flat pallet 10 onto the loading platform (floor) B of a truck T, and has a base portion 17 formed so as to be fixed to the loading platform B on which the flat pallet 10 is placed, and having a recess 13 arranged on its surface.

[0019] Each recess 13 of the base portion 17 is arranged at a position where the central axis C1 of the recess 13 coincides with the central axis C2 of the protrusion 15 when the flat pallet 10 is loaded onto the pallet mounting device 16. Note that Fig. 2 shows the pallet mounting device 16 when a maximum of two flat pallets 10 are loaded in the width direction and a maximum of three flat pallets 10 in the length direction of the loading platform B. However, the number of recesses 13 is set according to the number of flat pallets 10 loaded and the size of the loading platform B.

[0020] Next, the operation of the flat pallet 10 and the pallet mounting device 16 according to this embodiment will be described. First, the pallet mounting device 16 is fixed onto the loading platform B. The method of fixing it to the loading platform B may be any known method.

[0021] When loading flat pallets 10 onto truck T, the appropriate flat pallet 10 is selected taking into consideration the unloading order, and then forks (not shown) are inserted into fork insertion openings 12A to lift up the flat pallet 10, which is then moved to truck T and loaded onto loading platform B. The pallet is then moved to the back of loading platform B. Rails, hoists, etc. (not shown) are used for movement.

[0022] After moving to a predetermined position, the flat pallet 10 is lowered once the convex portions 15 of the flat pallet 10 are aligned with the concave portions 13 of the base portion 17 of the pallet mounting device 16. At this time, the convex tapered surface and the concave tapered surface are in contact with each other, and the convex portions 15 and the concave portions 13 are engaged, and the flat pallet 10 is mounted on the pallet mounting device 16.

[0023] When unloading, the flat pallet 10 is lifted using a fork, hoist, etc. (not shown) to release the engagement between the convex portion 15 and the concave portion 13, and then removed from the truck T.

[0024] With this flat pallet 10 and pallet mounting device 16, the cargo P is fixed to the loading platform B by engaging the flat pallet 10 with the pallet mounting device 16 which is originally fixed to the loading platform B, so there is no need to secure the cargo P inside the loading platform B using leather straps or the like, which makes loading and unloading operations more efficient and shorter.

[0025] (Second embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. The same components as those in the first embodiment are denoted by the same reference numerals and the description thereof will be omitted. The difference between the second embodiment and the first embodiment is that a convex portion 15 is arranged protruding from the loading surface 21A side of the upper plate 21 of the flat pallet 20 in this embodiment, and a concave portion 13 is arranged in the girder 12.

[0026] The protrusions 15 are arranged at three positions corresponding to the vertices of an equilateral triangle when viewed from the loading surface 11A side at the position where the upper plate 11 is connected to the girder 12 in a plan view.

[0027] The recesses 13 are arranged at three locations on the beam 12 so that the protrusions 15 can be engaged with the recesses 13, with the protrusions 15 projecting in the depth direction. The pallet mounting device 22 has a base 23 on which the protrusions 15 are arranged instead of the recesses 13.

[0028] The functions and effects of the flat pallet 20 and pallet mounting device 22 according to this embodiment are similar to those of the flat pallet 10 and pallet mounting device 16 according to the first embodiment.

[0029] The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, although the flat pallets 10 and 20 according to the present embodiment are of a two-way entry type, they are not limited to this and may be of a hollowed-out type, four-way entry type, etc. Furthermore, the pallets are not limited to the flat pallets 10 and 20, and are not limited to any particular shape as long as they are used by stacking them vertically.

[0030] Furthermore, although it is stated that a recess 13 is formed inside the beam 12, it may also be formed in a block (not shown) connected to the back side of the loading surface, for example, in the case of a four-way entry type flat pallet.

[0031] Furthermore, although the pallet mounting devices 16, 22 are described as being fixed to the loading platform B, etc., they may not only be fixed directly to the loading platform B, but also, as shown in Figure 6, a sheet-like spacer 25 that fills the gap S formed between the pallet mounting devices 16, 22 may be inserted into the gap S, or the spacer 25 may be inserted and fixed instead of being fixed to the loading platform B.

[0032] In addition, without using the pallet mounting devices 16, 22, the flat pallets 10, 20 may be placed directly on a loading platform on which recesses 13 or protrusions 15 have been formed in advance at locations corresponding to the number and mounting positions of each recess 13 of the pallet mounting device 16 or the protrusions 15 of the pallet mounting device 22. [Explanation of symbols]

[0033] 10,20 Flat pallet (pallet) 11,21 Upper plate (flat part) 11A, 21A loading surface 12 digits (support part) 13 Recess 15 Convex part 16,22 Pallet mounting device 17,23 Base

Claims

1. a flat surface on which a luggage loading surface is arranged; a support portion that protrudes from the rear surface of the loading surface and supports the planar portion; Equipped with a recess formed in a substantially cylindrical shape on the loading surface, the recess having a central axis parallel to a support direction of the support portion; a protrusion formed in a substantially cylindrical shape having a central axis coincident with the central axis, protruding from the support portion in a depth direction of the recess so as to be engageable with the recess and retractable into the recess; Equipped with A pallet in which the recessed and protruding portions are arranged at three locations corresponding to the vertices of an equilateral triangle when viewed in plan from the loading surface side.

2. a flat surface on which a luggage loading surface is arranged; a support portion that protrudes from the rear surface of the loading surface and supports the planar portion; Equipped with a protruding portion having a central axis parallel to a support direction of the support portion and protruding in a substantially cylindrical shape from the loading surface; a recessed portion formed in a substantially cylindrical shape and arranged in the support portion, the recessed portion having a central axis coincident with the central axis and capable of engaging with the protruding portion, the protruding direction of the protruding portion being a depth direction; Equipped with A pallet in which the recessed and protruding portions are arranged at three locations corresponding to the vertices of an equilateral triangle when viewed in plan from the loading surface side.

3. A pallet mounting device with which the pallet described in claim 1 can be engaged, comprising a base portion formed so as to be fixed to the floor surface on which the pallet is placed and having the recess arranged on its surface.

4. A pallet mounting device with which the pallet described in claim 2 is engaged, having a base portion formed so as to be fixed to the floor surface on which the pallet is placed and having the convex portion arranged on the surface.

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