TWI636923B - Cargo handling pallet - Google Patents

Abstract

[Question] A loading and unloading tray that can improve both stowage efficiency and work efficiency is provided. [Technical Content] The ground surface portion having a rectangular plate shape and placed on the cargo, and a ground surface portion that is parallel to the placement surface and in contact with the tray support surface, and at least one of the four edge portions of the placement surface portion The entire length or part of the length is formed as an eaves-like portion, and a structure in which the tray supporting surface is exposed and the concave portion at which the tip end portion of the fork is inserted is formed below the eave-like portion, and the eaves-shaped portion is formed. a sliding portion that is slidably connected to the upper surface of the tip end portion of the fork portion on the lower surface of the eave edge portion, and the depth of the concave portion is set to be longer than the length of the fork insertion portion when the tip end portion of the fork is in contact with the sliding portion Further, the eaves-like edge portion is lifted by the sliding contact between the sliding portion and the tip end portion of the fork, and a fork insertion gap occurs between the ground surface portion and the tray supporting surface where the ground surface portion contacts.

Description

Loading and unloading tray

[0001] The present invention relates to a loading/unloading tray for a table on which goods are placed, in the case of loading and unloading operations such as loading, unloading, and transportation of goods.

[0002] The premise of such a loading and unloading tray is that the fork (claw) of the stacker vehicle is inserted and scooped up, and is lowered and lowered together with the cargo, and the fork is removed after being conveyed. Therefore, how to smoothly detach the fork is an important element of the loading and unloading tray. [0003] Conventionally, a conventional tray (referred to as a "flat tray" in Japan) is a rectangular thick plate-shaped loading and unloading tray, and the tray includes a mounting surface on which the goods are placed, and the like. A grounding surface portion that is in contact with the tray supporting surface is formed with a fork groove (fork insertion space) in which the fork can be detachably inserted between the mounting surface portion and the grounding surface portion (for example, the first drawing of Patent Document 1 below) Reference). [0004] The conventional tray has the advantage that the fork can be smoothly inserted and removed by the presence of the fork groove, but on the reverse side, if a sufficient size of the fork groove is formed and the strength is compatible, the tray thickness becomes a fork. It is 120mm to 200mm which is several times thicker (the thickness of a general fork is about 45mm). Therefore, in the conventional conventional tray, only the volume of the thick portion of the tray becomes large, so that the volume inside the container and the warehouse is eroded, and the stowage efficiency of the goods is lowered. [0005] Here, as disclosed in Patent Document 1 below, a detachable tray in which the fork groove is abolished and formed as thin as possible has been developed. The tray for loading and unloading of the above-mentioned Patent Document 1 is a tray having a thickness of 2.5 mm to 5.5 mm which is a surface of the mounting surface and a back surface side as a ground surface portion, and is formed from the four edge portions of the mounting surface portion. At least one configuration of the inclined piece that protrudes obliquely. [PRIOR ART DOCUMENT] [Patent Document] [0006] [Patent Document 1] Japanese Open Publication No. 60-13333

[Problems to be Solved by the Invention] [0007] The loading and unloading tray of Patent Document 1 has a small tray thickness and can reduce the volume of the tray itself, but the inclined sheet portion protrudes more than the mounting surface. Above the inclined piece, there is a problem that the excess space in which the cargo cannot be placed is generated. Therefore, it is still impossible to greatly improve the stowage efficiency. [0008] In the loading and unloading tray of Patent Document 1, when the fork is inserted between the ground surface portion and the bottom surface and the tray supporting surface such as the floor, it is necessary to move the inclined piece portion while being grasped by the push-pull device. Page 8, paragraph 2, Figure 8). That is, the complicated work in which the push-pull device and the fork are simultaneously operated is problematic in that the work efficiency is poor as compared with the work performed only by the fork. Further, in the case where the loading/unloading tray of Patent Document 1 is present on the bottom surface and on the ground, that is, on the front side of the inclined piece portion, on the enlarged tray supporting surface, a representative example is a built-in roller. The fork of the conveyor belt (fork with the roller) correctly operates the fork that is inclined downward toward the tip end of the tip end, and the fork can be inserted between the grounding surface and the tray supporting surface even without using a push-pull device. [0010] However, when the stack of goods is stacked using the loading and unloading tray of Patent Document 1, if the tray is to be operated on the tray of the second layer or more, the grounding surface of the tray and the tray supporting surface (the top surface of the lower cargo) It is difficult to grasp the distance between the tip end of the fork and the distance of the tray support surface by visually checking the pallet support surface. Therefore, of course, it is difficult to insert the fork between the grounding surface of the tray above the second layer and the tray supporting surface, and it is also possible to scratch the lower section of the goods. [0011] As described above, in the loading and unloading tray of Patent Document 1, even if the volume of the tray can be reduced, an extra space in which the goods cannot be placed can occur, and thus the stowage efficiency cannot be expected to be greatly improved. In principle, it is necessary to carry out the loading and unloading operation of the push-pull device and the fork at the same time, and the work efficiency is deteriorated, and even if the tip end portion of the fork or the like using the roller is a special fork which is inclined downward, the second layer of the plurality of layers is stacked. The loading and unloading operations of the above goods are still difficult. [Means for Solving the Problem] The present invention is to solve the problem of the conventional loading and unloading tray, and to provide a unique loading and unloading tray that can improve both the stowage efficiency and the work efficiency. In the above description, the loading and unloading tray of the present invention is a loading/unloading tray used for loading and unloading a vehicle having a fork whose front end portion is inclined downward toward the tip end, and has the following configuration. [0014] In other words, the ground surface portion that is placed in a rectangular plate shape and placed on the cargo, and the ground surface portion that is parallel to the mounting surface portion and that is in contact with the tray supporting surface are provided, and at least four of the four edge portions of the mounting surface portion are provided One of the elongate portions or a portion of the elongate portion is formed as an eave-like portion, and a recess portion that exposes the tray supporting surface and is drawn so that the tip end portion of the fork is inserted is provided below the eave-like portion. a structure having a fork insertion space, wherein the eave edge portion has a sliding portion that is slidably attached to an upper surface of the tip end portion of the fork on the lower surface of the eave edge portion, and the sliding portion and the tip end portion of the fork The sliding connection causes the eaves edge portion to be lifted, and a fork insertion gap may occur between the grounding surface portion and the tray supporting surface where the grounding surface portion contacts. [0015] Preferably, when the lower surface of the eaves edge portion is formed to be inclined downward toward the inner side of the tray, the flat end of the fork front end portion can be smoothly slid and the base end (inner end) of the eaves edge portion can be achieved. Side reinforcement. Further preferably, the lower surface of the eaves-like portion is formed by a slanted convex arc surface or a plurality of stepped surfaces or a curved surface, and the above-mentioned slidable surface of the fork tip end portion can be reliably provided. Sliding joint. Further, when the lower surface of the eaves-like portion is formed by an inclined plane, the structure is simple and the visibility of the tray supporting surface that passes through the recess can be improved. [0017] When the lower end of the inclined eaves edge portion is connected to the ground surface portion, the strength of the eaves edge portion can be increased and the concave portion can be formed. Or setting the lower end of the lower side of the inclined eave edge portion to be higher than the ground surface portion, and forming a raised wall portion connecting the lower end of the lower edge portion of the eaves edge portion and the ground surface portion, The depth of the above recess can be lengthened as much as possible. [0019] Or setting a lower end of the lower side of the inclined eave edge portion to be higher than the ground surface portion, and a groove portion extending continuously from a lower end of the lower edge of the eave edge portion to the depth of the concave portion is formed on the ground surface portion In the configuration, the depth of the concave portion may be further extended by the groove portion and the lateral deviation of the inserted fork may be prevented. [0020] Preferably, a plurality of through-holes or bottomed notches are provided on the mounting surface portion and the grounding surface portion, and the weight is reduced. It also corresponds to nesting when not in use. [Effects of the Invention] [0021] According to the loading and unloading tray of the present invention, since it is not necessary to provide a space in the tray which can detach the conventional fork groove as a whole, it is formed only under the edge portion on which the face is placed. The concave portion into which the tip end portion of the fork is inserted is sufficient, so that the thickness of the tray can be made as thin as possible. [0022] A useless space in which the cargo cannot be placed is not generated around the surface to be placed, and the placement surface can be effectively utilized. [0023] The eaves-shaped edge portion on which the face is placed and the recessed portion drawn under the eave-like edge portion cooperate to smoothly insert the fork between the ground surface portion and the tray support surface, and can be performed only by using a fork Loading and unloading operations. Further, the loading and unloading operation can be performed while visually checking the tray support surface by the concave portion, and in particular, the loading and unloading operation of the second layer or more of the plurality of stacked layers can be efficiently performed. Therefore, according to the loading and unloading tray of the present invention, it is possible to have a high-dimensional configuration in which the stowage efficiency of the goods toward the container and the warehouse is improved, and the work efficiency of the loading and unloading operation is improved.

[0027] Hereinafter, the most suitable embodiment of the loading and unloading tray of the present invention will be described with reference to FIGS. 1 to 15. <Basic Configuration> The loading and unloading tray of the present invention is as shown in Figs. 1A, B, 9A, B, 10A, B, 11A, B, 13A, B In addition, as shown in Fig. 14A and B, there is provided a tray support which is in the form of a rectangular plate and which is placed on the cargo, and a tray support which is parallel to the placement surface 1 and which is on the ground and the bottom surface and the top surface of the lower cargo. The ground contact surface 2 that is in surface contact has at least one of the four edge portions (side portions) 3 of the mounting surface portion 1 spanning the entire length or a portion of the length as the eave edge portion 3' and is formed on the eaves edge portion The lower portion of 3' is drawn as the structure of the recess 4. That is, the concave portion 4 below the eave edge portion 3' is drawn with the lobe of the side surface portion 5 and the ground surface portion 2 omitted. Therefore, the recessed portion 4 is a space opened at the side and the lower side, and the tray supporting surface is exposed and the tip end portion 12 of the fork 11 to be described later is inserted. [0030] The edge portion 3 which is not formed as the eave edge portion 3' in the mounting surface portion 1 is connected to the ground surface portion 2 through the side surface portion 5. The loading and unloading tray of the present invention can be formed of a material used for a known loading and unloading tray such as wood, metal, synthetic resin, or paper. Further, since only the concave portion 4 into which the fork tip end portion is inserted is formed below the edge portion 3' on which the face portion 1 is placed, the thickness of the tray can be made as thin as possible. For example, depending on the material, the tray thickness can be set to about 5 mm to 70 mm. Preferably, the tray thickness is set to 30 mm from the relationship with the strength. Further, the loading and unloading tray of the present invention is a useless space that does not cause the goods to be placed around the surface portion 1 to be placed, and the mounting surface portion 1 can be effectively utilized. [0033] Therefore, the stowage efficiency of goods towards containers and warehouses can be greatly improved. Further, in each of the embodiments described later, an example in which all of the four edge portions 3 on which the face portion 1 is placed spans the entire length or a partial length as the eave edge portion 3' is described. According to the present invention, the entire length of the at least one edge portion 3 of the mounting surface portion 1 or the portion of the eaves-like edge portion 3' is formed to be long, and the concave portion 4 is formed below. <Prerequisite Configuration> Here, the premise configuration of the loading and unloading tray of the present invention will be described. The premise of the loading and unloading tray of the present invention is that the user who performs the loading and unloading operation using the stacker vehicle having the forks 11 shown in Figs. 2 and 3 is used. That is, the premise is that the fork 11 which is inclined downward toward the tip end 12b is inserted and removed by the upper surface 12a of the tip end portion 12. [0036] The fork 11 of the above-described configuration is preferably exemplified by the forks 11 of the roller attached to the roller conveyor belt 13 as exemplified in FIGS. 2 and 3. The roller-equipped fork 11 is composed of a built-in roller conveyor belt 13 composed of a plurality of upper rollers 13A and a plurality of lower rollers 13B. The two rollers 13A and 13B are interlocked and rotate in opposite directions to complement each other. The movement of the fork 11 on the tray supporting surface G and the entry and exit of the tray or the cargo onto the fork 11. [0037] For example, in the third figure, when the lower roller 13B is moved in the left direction in a state where the lower roller 13B is in contact with the tray supporting surface G (the fork 11 is advanced), the lower roller 13B is rotated leftward correspondingly. The upper roller 13A is rotated to the right. Therefore, the fork 11 can be smoothly advanced on the tray supporting surface G by the rotation of the lower roller 13B, and the tray or the cargo or the like is guided to the fork 11 by the rotation of the upper roller 13A. On the contrary, when the fork 11 is moved in the right direction in a state where the lower roller 13B is in contact with the tray supporting surface G (the fork 11 is retracted), the lower roller 13B is rotated rightward so that the upper roller 13A is left-handed. turn. Therefore, the fork 11 can be smoothly retracted on the tray supporting surface G by the rotation of the lower roller 13B, and the tray or the cargo or the like is guided from the fork 11 toward the tray supporting surface G by the rotation of the upper roller 13A. lead. <First Embodiment> Figs. 1A and 1B are diagrams showing a loading and unloading tray according to a first embodiment of the present invention. In the present embodiment, the basic configuration described above is provided, and in particular, a configuration in which the four edge portions 3 on which the face portion 1 is placed is formed over the entire length as the eave edge portion 3' is featured. [0040] The configuration of the crotch portion and the concave portion of the eaves ridge Here, the eaves-like edge portion 3' on which the face portion 1 is placed and the recessed portion 4 drawn below the eave-like edge portion 3' are described in detail. [0041] As shown in FIGS. 1A, A, and 4A, the eave edge portion 3' has a lower surface 3'a formed by a plane that is inclined downward toward the inside of the tray (the center portion side of the tray). The lower surface 3'a has a sliding portion 3'c that is slidably coupled to the front end portion 12a of the fork 11. Further, the lower end 3'b of the lower 3'a is continuous with the ground surface portion 2. Further, in the present invention, the sliding portion 3'c refers to a region or portion of the lower surface 3'a of the eave-like portion that is in contact with the upper end portion 12a of the fork. [0042] By arranging the lower 3'a of the eaves edge portion as described above, the smooth sliding of the fork tip end portion 12a can be achieved and the base end (inner end) side of the eaves edge portion 3' can be achieved. Reinforcement, the strength of the eaves edge portion 3' can be further improved by connecting the lower end 3'b of the lower 3'a of the eaves edge portion to the ground surface portion 2. When the lower surface 3'a of the eaves edge portion is formed of an inclined plane as described above, the eaves edge portion lower surface 3'a and the fork tip end portion upper surface 12a are planes which are inclined in the same direction. Therefore, in order to surely form the sliding portion 3'c which is slidably coupled to the upper end portion 12a of the fork portion, the lower portion 3'a of the eaves edge portion is formed, and the inclination angle α of the upper end portion 12a of the fork tip portion and the lower portion 3' of the eaves edge portion are formed. The inclination angle β of a is set to a relationship of α>β. [0044] The recessed portion 4 is drawn below the eaves-like edge portion 3' by a recessed space in which the underside 3'a of the eaves-like portion is a top surface. Further, the depth L1 of the recessed portion 4 is set to be longer than the fork insertion length L2 when the fork tip end portion upper surface 12a comes into contact with the sliding portion 3'c of the eaves-like edge portion lower surface 3'a, that is, L1>L2. In other words, the fork insertion length L2 is determined by the height of the lowermost end of the sliding portion 3'c, so that the depth L1 of the recess 4 is set longer than this L2. [0045] Then, the loading and unloading tray of the present invention is configured by the cooperation of the eaves edge portion 3' and the recessed portion 4 having the above-described configuration, and the tip end portion 12 of the fork 11 is easily inserted into the grounding surface portion 2 and the tray supporting surface as will be described later. Between G, the fork 11 is finally inserted as a whole. [0046] That is, as shown in FIG. 4A, first, the fork 11 is advanced until the tip end portion upper surface 12a abuts against the sliding portion 3'c of the eaves edge portion lower surface 3'a, but at this time, it is possible to The concave portion 4 is visually confirmed while confirming the tray supporting surface G. As shown in Fig. 8, when the tray supporting surface G is the top surface of the lower stage of the cargo C, it can be performed while being visually confirmed. And the lower surface 3'a of the eaves edge portion 3' is inclined toward the inner side of the tray, and the tip end portion 12 of the fork 11 can be smoothly inserted into the recess 4 existing therebelow and the depth L1 of the recess portion 4 is The fork insertion length L2 is longer, so the fork tip 12b does not uselessly collide with the tray. [0048] Next, as shown in FIG. 4B, when the fork 11 is further advanced, the sliding portion 3'c of the eave edge portion 3' and the upper end portion 12a of the fork are slidably connected, and the eave edge portion 3' Raised, the grounded face 2 and the grounded face 2 are in contact, i.e., a fork insertion gap 14 may occur between the tray support faces G covered by the grounded face 2. Therefore, the fork tip end 12b can be further advanced without any conflict, and the tip end portion 12 of the fork 11 is easily inserted between the ground surface portion 2 and the tray supporting surface G, and finally the fork 11 is integrally inserted. [0049] If the fork 11 is a fork with a roller attached thereto, the fork 11 can be advanced toward the fork 11 by the rotation of the upper roller 13A until the ground portion 2 comes into contact with the upper roller 13A. Guided smoothly. Further, when the fork 11 is removed from between the ground surface portion 2 and the tray supporting surface G, the eave edge portion 3' naturally follows the trajectory opposite to the above insertion. Further, if the fork 11 is a fork with a roller, the rotation of the upper roller 13A when the fork 11 is retracted can effectively guide the tray from the fork 11 toward the tray supporting surface G, and the fork 11 can be easily removal. Therefore, by the cooperation of the eaves edge portion 3' and the recessed portion 4, it is not necessary to use a complicated operation such as a push-pull device, and only the fork 11 can be attached and detached, and the work efficiency can be greatly improved. [0052] Other examples of the crotch portion and the recess of the eaves have been described so far, according to Figs. 1A, B, and 4A and B, the lower 3'a of the eaves edge portion 3' is oriented toward the tray. In the example in which the inner side is inclined downward, the lower surface 3'a of the eaves edge portion may be formed other than the inclined plane. [0053] As shown in FIG. 5A, the underside 3'a of the eaves edge portion can be formed by a convex arcuate surface that is inclined downward toward the inside of the tray. Alternatively, as shown in Fig. 5B, the lower 3'a of the eaves edge portion may be formed by a curved surface which is inclined downward toward the inside of the tray. According to the 3'a of the eaves edge portion of the above-described example, the portion protruding toward the inside of the recessed portion 4 can be used as the sliding portion 3'c, and can be a sliding portion that is surely slidably coupled to the upper end portion 12a of the fork tip portion. 3'c. [0054] As shown in FIG. 6A, the underside 3'a of the eaves-like portion can be formed by a plurality of steps which are inclined downward toward the inside of the tray. In the case of the 3'a under the eaves edge portion of the example, the portion protruding toward the inner side of the recessed portion 4 may be a sliding portion 3'c, and may be a sliding portion that is surely slidably coupled to the upper end portion 12a of the fork tip portion. 3'c. Specifically, although not shown, as shown in FIG. 6A, the tip end (outer end) of the eaves edge portion 3' is formed into a plane or a convex arc surface as described above. Alternatively, the curved surface may be formed to correspond to the surface 3'a below the eaves edge portion. [0055] As shown in FIG. 6B, the lower surface 3'a of the eaves edge portion may not be inclined to form a plane parallel to the mounting surface portion 1 or the ground surface portion 2. In this case, the tip end (outer end) portion of the lower 3'a of the eaves edge portion is the sliding portion 3'c. [0056] As shown in FIG. 7A and FIG.B, the lower end 3'b of the lower 3'a of the eaves-like edge portion which is inclined as described above is set to be higher than the grounding surface portion 2, and is formed below the eaves-like portion. The depth L1 of the recessed portion 4 can be lengthened as much as possible by the configuration of the lower end 3'b of the 3'a and the raised wall portion 6 connected to the grounding surface portion 2. In the illustrated example, the underside 3'a of the eaves edge portion has a convex arcuate surface, but a flat surface or a curved surface may be used. Further, the raised wall portion 6 is formed to extend vertically as shown in Fig. 7A, and may be formed to extend obliquely downward toward the inside of the tray as shown in Fig. 7B. <Embodiment 2> Fig. 9 is a diagram showing a loading and unloading tray according to a second embodiment of the present invention. In the present embodiment, the basic configuration described above is provided, and in particular, a configuration in which the four edge portions 3 on which the face portion 1 is placed is formed as the eave edge portion 3'. That is, in the present embodiment, as shown in the figure, a portion other than the both end portions of the edge portion 3 of the mounting surface portion 1 is formed as the eave edge portion 3'. Therefore, both end portions of the edge portion 3 have a configuration in which the transmission side surface portion 5 is connected to the ground surface portion 2, and it is possible to stably arrange on the tray support surface without omitting the four sides of the ground surface portion 2. [0059] The mechanism of the shape of the eaves-like portion 3' and the recessed portion 4 and the insertion and removal of the fork 11 in the present embodiment is the same as that of the first embodiment described above, and the "ankle-like portion of the first embodiment" is used. And the configuration of the recessed portion and the "other examples of the eaves-like portion and the recessed portion". <Embodiment 3> Figs. 10A and 8B are diagrams showing a loading and unloading tray according to a third embodiment of the present invention. In the present embodiment, the basic configuration described above is provided, and in particular, a configuration in which the four edge portions 3 on which the face portion 1 is placed is formed across the plurality of portions as the eave edge portion 3' is characteristic. That is, in the present embodiment, as shown in the figure, a plurality of portions other than the central portion of the edge portion 3 of the mounting surface portion 1 are formed as the eave edge portion 3'. In other words, the two eaves-like portions 3' are formed at intervals. Therefore, in the present embodiment, the central portion of the edge portion 3 has a configuration in which the transmission side surface portion 5 is connected to the ground surface portion 2, and it is possible to stably arrange the tray support without omitting the center of the edge portion of the ground surface portion 2. On the surface. In the present embodiment, the shape of the eaves-like edge portion 3' and the recessed portion 4 and the mechanism for the insertion and removal of the fork 11 are also the same as those of the above-described first embodiment, and the "ankle-like edge" of the first embodiment is used. Description of the configuration of the portion and the recessed portion and the "other examples of the eaves-like portion and the recessed portion". <Embodiment 4> Figs. 11A and 1B are diagrams showing a loading and unloading tray according to a fourth embodiment of the present invention. In the present embodiment, the basic configuration described above is provided, and in the same manner as in the third embodiment, the four edge portions 3 on which the face portion 1 is placed are formed so as to span the plurality of portions as the eave edge portion 3'. The point different from the third embodiment in the present embodiment is a point formed by the end portions of the edge portion 3 of the mounting surface portion 1 and the plurality of portions other than the central portion as the eave edge portion 3'. Therefore, in the present embodiment, both end portions and the central portion of the edge portion 3 have a configuration in which the transmission side surface portion 5 is connected to the ground surface portion 2, and it is possible to stabilize the center portion of the ground surface portion 2 without omitting the center of the edge portion 2 and the edge portion. The ground is placed on the tray support surface. [0067] In the present embodiment, the structure of the eaves-like edge portion 3' and the recessed portion 4 and the mechanism for the insertion and removal of the fork 11 are also referred to as "the structure of the eaves-like portion and the recessed portion" and "the eaves" of the first embodiment. The description of the other examples of the edge portion and the recess portion may further constitute the eaves edge portion 3' and the recess portion 4 which will be described later in the present embodiment. [0068] That is, as shown in FIG. 12A and FIG.B, the lower end 3'b of the lower 3'a of the inclined eave edge portion is set to be higher than the grounding surface portion 2, and the lower side of the eaves edge portion is 3'a. The groove portion 7 in which the lower end 3'b continuously extends the depth L1 of the concave portion 4 is formed on the ground surface portion 2, and the groove portion 7 can further extend the depth L1 of the concave portion 4 and prevent lateral deviation of the insertion fork 11. <Embodiment 5> Fig. 13 is a diagram showing a loading and unloading tray according to a fifth embodiment of the present invention. In the present embodiment, the basic configuration described above is provided, and the arrangement configuration of the eaves-like edge portion 3' similar to that of the fourth embodiment is provided. Further, in the present embodiment, the structure of the eaves-like edge portion 3' and the recessed portion 4 and the mechanism for the insertion and removal of the fork 11 are also referred to as "the structure of the eaves-like portion and the recessed portion" and "the eaves-like edge" of the first embodiment. Description of other parts of the part and the recess. Further, in the present invention, the arrangement of the eaves edge portion 3' of the present embodiment is the same as that of the first to third embodiments. [0070] The characteristic configuration of the present embodiment is a configuration in which a plurality of through-hole portions 8 are provided on the mounting surface portion 1 and the ground surface portion 2. According to this configuration, the weight of the entire loading and unloading tray can be reduced. Further, although the notch portion 8 having a corner hole shape has been described in the illustrated example, the shape of the notch portion 8 is not particularly limited in the present invention. When the detachable tray having the configuration of the plurality of through-hole portions 8 is produced in the present embodiment, the synthetic resin is used as a material by a known injection molding method. <Embodiment 6> Fig. 14A, B, and 15 are drawings showing a detachable tray according to a sixth embodiment of the present invention. In the present embodiment, the basic configuration described above is provided, and the arrangement configuration of the eave edge portion 3' similar to that of the first embodiment is provided. Further, in the present embodiment, the structure of the eaves-like edge portion 3' and the recessed portion 4 and the mechanism for the insertion and removal of the fork 11 are also referred to as "the structure of the eaves-like portion and the recessed portion" and "the eaves-like edge" of the first embodiment. Description of other parts of the part and the recess. Further, in the present invention, the arrangement of the eaves edge portion 3' of the present embodiment is the same as that of the second to fourth embodiments. [0073] The configuration of the present embodiment is such that a plurality of bottomed notch portions 9 are provided on the mounting surface portion 1 and the ground surface portion 2, whereby the weight of the entire loading and unloading tray can be reduced. Corresponds to the nest when not in use. When the notch portion 9 is described in detail, as shown in FIG. 14A, the mounting surface portion 1 is formed with a central portion of the mounting surface central notch portion 9a which is recessed in a diamond shape, and is partitioned. Arrange the arrangement vertically and horizontally. Preferably, as shown in Fig. 15, a part of the central notch portion 9a on which the face is placed is used as the placement surface central notch portion 9'a of the step portion, so that it can be half-stacked. On the other hand, as shown in FIG. 14B, the ground contact surface 2 has a ground-faced central notch portion 9c that is lattice-shaped in the vicinity of the placement surface central notch portion 9a. [0075] In the field of the lower surface 3'a of the eaves-like portion, a plurality of eave-shaped notch portions 9d which are trapped in a rectangular shape are formed at equal intervals, at equal intervals. Therefore, the lower 3'a of the eaves edge portion is a discontinuous surface, and the frictional force when sliding with the upper end portion 12a of the fork tip can be reduced. On the other hand, on the upper surface of the eaves-like portion 3', a plurality of eave-shaped notch portions 9b that are recessed in accordance with the shape of the lower 3'a of the eave-like portion are formed. Further, in the present invention, the shape of the bottomed notch portion 9 is of course not limited to the illustrated example. The shape of the notch portion 9 is not particularly limited insofar as it is compatible with weight reduction and nesting. When the detachable tray having the configuration of the plurality of bottomed notches 9 is produced as in the present embodiment, the synthetic resin is produced as a material by a known vacuum forming method and pressure forming method. As described above, according to the loading and unloading tray of the present invention, it is possible to achieve an improvement in the stowage efficiency of the goods toward the container and the warehouse and an improvement in the work efficiency of the loading and unloading operation. Further, in the present invention, the surface portion 1 and the ground surface portion 2 and the underside 3'a of the eaves edge portion can ensure the respective functions, and the discontinuous surface formed by the concave portions such as the holes and the grooves is not excluded.

[0080]

  1‧‧‧Place the face

2‧‧‧grounding face

3‧‧‧Loading the edge of the face

3'‧‧‧ eaves

3'a‧‧‧ below the eaves

3'b‧‧‧ Lower end below the eaves

3'c‧‧‧Sliding Department

4‧‧‧ recess

5‧‧‧ side section

6‧‧‧High wall

7‧‧‧Ditch Department

8‧‧‧through-shaped notch

9‧‧‧With a bottom notch

9a‧‧‧Loading the central notch of the face

9'a‧‧‧After the section of the section, the central notch of the face is placed

9b‧‧‧The eaves of the eaves

9c‧‧‧ grounding central notch

9d‧‧‧The eaves notch

11‧‧‧ fork

12‧‧‧ fork front end

12a‧‧‧Top end

12b‧‧‧ apex

13‧‧‧Roller conveyor belt

13A‧‧‧Upper roller

13B‧‧‧lower roller

14‧‧‧ fork insertion gap

Angle of inclination of the tip end of the α‧‧‧ fork

Angle of inclination below the ‧‧‧‧ eaves

G‧‧‧Tray support surface

Depth of the L1‧‧‧ recess

L2‧‧‧ insertion length of the apex of the fork

C‧‧‧ goods

[Fig. 1A] A perspective view showing the loading and unloading tray of the first embodiment from the side of the mounting surface. [Fig. 1B] A perspective view showing the detachable tray of the first embodiment from the ground surface side. [Fig. 2] A perspective view of the fork. [Fig. 3] An enlarged explanatory view of the fork tip end portion. [Fig. 4A] is an enlarged explanatory view showing a state in which the sliding portion on the lower surface of the eaves edge portion and the upper end portion of the fork are in contact. [Fig. 4] Fig. 4 is an enlarged explanatory view showing a state in which the sliding portion on the lower surface of the eaves edge portion and the upper end portion of the fork are slid and the eaves edge portion has been lifted. [Fig. 5A] is an enlarged explanatory view showing a lower eave edge portion having an inclined convex curved surface. [Fig. 5B] An enlarged explanatory view showing a lower eave edge portion having a curved curved surface. [Fig. 6A] is an enlarged explanatory view showing a lower eave edge portion having a plurality of step differences. [Fig. 6B] An enlarged explanatory view showing an underlying eave edge portion having no inclination. [Fig. 7A] is an enlarged explanatory view showing an example in which the lower end of the underside of the eaves edge portion is set higher than the ground plane. [Fig. 7B] An enlarged explanatory view showing another example of the example shown in Fig. 7A. [Fig. 8] A perspective view showing a state in which a plurality of layers of goods are stacked. [Fig. 9A] A perspective view showing the loading and unloading tray of the second embodiment from the side of the mounting surface. [Fig. 9B] A perspective view showing the detachable tray of the second embodiment from the ground surface side. [Fig. 10A] A perspective view showing the loading/unloading tray of the third embodiment from the side of the mounting surface. [Fig. 10B] A perspective view showing the detachable tray of the third embodiment from the ground surface side. [Fig. 11A] A perspective view showing the loading/unloading tray of the fourth embodiment from the side of the mounting surface. [Fig. 11B] A perspective view showing the detachable tray of the fourth embodiment from the ground surface side. [12] A is an enlarged explanatory view showing an example in which the lower end of the underside of the eaves edge portion is set to be a groove formed on the ground surface portion higher than the ground contact surface. [Fig. 12] Fig. 4 is a perspective view showing the detachable tray shown in Fig. 12A from the ground surface side. [Fig. 13A] A perspective view showing the loading/unloading tray of the fifth embodiment from the side of the mounting surface. [Fig. 13B] A perspective view showing the detachable tray of the fifth embodiment from the ground surface side. [Fig. 14A] A perspective view showing the loading and unloading tray of the sixth embodiment from the side of the mounting surface. [Fig. 14B] A perspective view showing the loading and unloading tray of the sixth embodiment from the ground surface side. Fig. 15 is a cross-sectional view showing the loading and unloading tray of the sixth embodiment.

Claims (11)

A loading and unloading tray is a loading and unloading tray used for loading and unloading a vehicle having a fork that is inclined downward toward the tip end of the tip end portion, and is characterized in that it has a rectangular plate shape and carries the cargo. a ground surface portion that is parallel to the mounting surface and in contact with the tray supporting surface, and at least one of the four edge portions of the mounting surface portion is formed so as to span the entire length or a portion of the length as an eave edge portion. The lower side of the edge portion has a structure in which the tray supporting surface is exposed and drawn so that the tip end portion of the fork is inserted, and the fork insertion space is not provided inside, and the eaves edge portion is in the eaves shape. The lower surface of the edge portion has a sliding portion that is slidably connected to the upper surface of the tip end portion of the fork, and the eaves edge portion is lifted by the sliding portion and the sliding portion of the tip end portion of the fork, and the grounding surface portion is A fork insertion gap occurs between the support faces of the trays that the ground face contacts. The loading and unloading tray of claim 1, wherein the underside of the eaves edge portion is inclined downward toward the inner side of the tray. The loading and unloading tray of claim 2, wherein the underside of the eaves edge portion is formed by an inclined plane. The loading and unloading tray of claim 2, wherein the underside of the eaves edge portion is formed by an inclined convex arc surface or a plurality of stepped or curved surfaces. The loading and unloading tray according to any one of claims 2 to 4, wherein the lower end of the lower surface of the inclined eave edge portion is coupled to the ground surface portion. The loading and unloading tray according to any one of claims 2 to 4, wherein a lower end of the lower side of the inclined eave edge portion is set higher than the ground surface portion to form a lower end of the underside of the eaves edge portion and The raised wall portion of the grounding surface is connected. The loading and unloading tray according to any one of claims 2 to 4, wherein a lower end of the lower side of the inclined eave edge portion is set higher than the ground surface portion, and is continuous with a lower end of the eaves edge portion A groove portion that extends the depth of the concave portion is formed on the ground surface portion. The loading and unloading tray according to any one of claims 1 to 4, wherein the mounting surface portion and the grounding surface portion are provided with a plurality of through-holes or a bottomed notch portion. The loading and unloading tray according to claim 5, wherein the mounting surface portion and the grounding surface portion are provided with a plurality of through-holes or bottomed notches. The loading and unloading tray of claim 6, wherein the mounting surface portion and the grounding surface portion are provided with a plurality of through-holes or bottomed notches. The loading and unloading tray according to the seventh aspect of the invention, wherein the mounting surface portion and the grounding surface portion are provided with a plurality of through-holes or a bottomed notch portion.