palette
The pallet design enhances rigidity and prevents deformation by using concave reinforcing portions on the pillars, addressing weight and structural integrity issues while ensuring smooth fork insertion and efficient manufacturing.
Patent Information
- Application Number
- JP2021208908
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-12-23
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2041-12-23
AI Technical Summary
Existing pallets face challenges in increasing rigidity without significantly increasing weight, and there is a need to prevent deformation and damage to the pallet structure when loaded.
The pallet design incorporates reinforcing portions on the outer peripheral walls of the pillars, which are concavely curved to enhance rigidity while minimizing weight, and are positioned to avoid interference with fork insertion and welding residues.
The design effectively increases rigidity, prevents deformation, and reduces the risk of damage to the pallet, while allowing smooth fork insertion and improving manufacturing efficiency.
Smart Images

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Abstract
Description
[Technical Field]
[0001] The present invention relates to a pallet used for transporting goods, etc. [Background technology]
[0002] Generally, pallets used for transporting goods, etc., have multiple pillars, an upper deck section connecting the upper ends and lower ends of the multiple pillars, and a lower deck section, and have fork insertion sections between the pillars into which forks from a forklift or the like can be inserted (see, for example, Patent Documents 1 and 2). [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Publication No. 9-39966 [Patent Document 2] Japanese Patent Application Laid-Open No. 2000-291064 Summary of the Invention [Problem to be solved by the invention]
[0004] Meanwhile, there is a demand for efficiently increasing the rigidity of the columns of pallets (without incurring a significant increase in weight, etc.) For example, in Patent Document 1, a portion of the wall that constitutes the outer peripheral surface of the column is made thicker, and in Patent Document 2, a rib that extends from the upper end to the lower end of the column is connected to the wall that constitutes the outer peripheral surface of the column, but further measures are required.
[0005] The present invention has been made to solve the problems exemplified above, and its object is to provide a pallet capable of increasing the rigidity of the pillars. [Means for solving the problem]
[0006] The following describes each means suitable for achieving the above objects, etc., by item. Note that, as necessary, the effects and advantages specific to the corresponding means will be added.
[0007] Means 1. A plurality of pillars; an upper deck portion connecting the upper ends of the plurality of pillar portions; a lower deck portion connecting the lower ends of the plurality of pillar portions, Fork insertion sections into which forks of a transport means equipped with forks can be inserted are formed between the plurality of pillar sections, and the fork insertion section has a generally rectangular shape in plan view. The whole was formed as a single unit. In the palette, The outer wall portion constituting the outer peripheral surface of the pillar portion is provided with a reinforcing portion configured by making an intermediate portion of a target wall portion that is linear or curved with a substantially constant curvature extending in a predetermined direction in a horizontal cross section into a convex or concave curved portion or a bent portion, The reinforcing portion is provided continuously from the upper end to the lower end of the column portion, The upper deck The department , extending in a direction parallel to a predetermined side edge of the pallet and connecting the pillars. Upper column with connecting section Equipped with a connecting bar, The lower deck portion includes a lower connecting rail extending in a direction parallel to a predetermined side edge portion of the pallet and including a lower inter-column connecting portion connecting the columns, At least a part of the reinforcing portion is The connecting part between the lower pillar parts and is formed so as to include at least a portion of the linking site with And, The target wall portion is formed so that the reinforcing portion is not included in a connection portion between the target wall portion and the upper inter-column portion connection portion, The lower inter-column connection portion is configured so as not to overlap with the upper inter-column connection portion in a plan view. A pallet characterized by:
[0008] According to the first aspect, the rigidity of the columns can be effectively increased while suppressing an increase in the weight of the pallet. As a result, it is possible to more reliably prevent the pallet from being deformed or flexed when items are placed on the pallet. Furthermore, the provision of the reinforcing portion increases the strength of the target wall, making it possible to more reliably prevent damage to the target wall when the fork comes into contact with it. It is also possible to prevent a situation in which deformation occurring in the connecting bars causes deformation of the connecting portions of the columns with the connecting bars, resulting in relatively large deformation of the entire pallet.
[0011] means2 The reinforcing portion is provided in a concave shape toward the inner periphery of the outer wall portion. 1 The pallet described in
[0012] means 2 According to this, it is possible to prevent a situation in which the fork comes into contact with the reinforcing portion when inserting the fork into the fork insertion portion. This allows for smoother insertion of the fork into the fork insertion portion and prevents damage to the reinforcing portion due to contact with the fork. Furthermore, for example, when a pallet is constructed by separately forming an upper portion and a lower portion of the pallet and then welding them together, it is possible to prevent a situation in which the presence of the reinforcing portion makes it difficult to scrape off excess resin generated by welding (when the reinforcing portion is convex, it is necessary to scrape off the excess resin along the convex surface, but when the reinforcing portion is concave, it is not necessary to remove excess resin that is contained within the reinforcing portion (not protruding), and even if excess resin protrudes from the reinforcing portion, it is only necessary to scrape off the excess resin along the outer surface of the target wall portion). As a result, it is possible to improve pallet productivity, etc. [Brief explanation of the drawings]
[0013] [Figure 1] FIG. 2 is a perspective view showing the top side of the pallet. [Figure 2] FIG. 2 is a perspective view showing the underside of the pallet. [Figure 3] FIG. 2 is a perspective view including a horizontal cross section of the pallet. [Figure 4] FIG. 10 is a partially enlarged horizontal cross-sectional view of the pallet. [Figure 5] FIG. 2 is a perspective view including a vertical cross section of the pallet. [Figure 6] FIG. 2 is a perspective view including a vertical cross section of the pallet. [Figure 7] FIG. 10 is a partially enlarged cross-sectional view showing a central pillar portion and the like in another embodiment. DETAILED DESCRIPTION OF THE INVENTION
[0014] An embodiment will be described below with reference to the drawings. As shown in FIGS. 1 and 3, the pallet 1 has a generally rectangular shape in a plan view. The pallet 1 also includes four corner posts 2 provided at the four corners of the pallet 1, intermediate posts 3 provided at intermediate positions between pairs of corner posts 2 aligned along each side of the pallet 1, a central post 4 provided at the center of the pallet 1, an upper deck 5 connecting the upper ends of the corner posts 2, the intermediate posts 3, and the central post 4, and a lower deck 6 connecting the lower ends of the corner posts 2, the intermediate posts 3, and the central post 4. Fork insertion sections 7 are formed between each corner post 2 and the intermediate post 3, into which forks of a forklift, hand truck, or other transportation means can be inserted. The pallet 1 of this embodiment is a four-way insertion type pallet, allowing forks to be inserted from the four side surfaces that form the outer periphery of the pallet 1. The pallet 1 is also integrally formed (integrally molded) from polypropylene. Furthermore, in this embodiment, the upper surfaces of the corner post portion 2, the intermediate post portion 3, the central post portion 4, and the upper deck portion 5 form a "loading surface 8" on which items can be placed, and the lower surfaces of the corner post portion 2, the intermediate post portion 3, the central post portion 4, and the lower deck portion 6 form a "grounding surface 9" that comes into contact with an installation surface such as the floor on which the pallet 1 is placed (see Figure 2, etc.).
[0015] 1, 5, and 6, the upper deck section 5 extends in a direction parallel to a predetermined side edge of the pallet 1, and is equipped with upper connecting bars 11 that respectively connect the corner posts 2 and the intermediate posts 3 and the central post 4 and the intermediate post 3, and auxiliary connecting portions 12 that connect the upper connecting bars 11 together. As shown in FIG. 5, the upper connecting bar 11 that connects the central post 4 and the intermediate post 3 has a generally U-shape that opens downward in a cross section perpendicular to the extension direction of the upper connecting bar 11, and is equipped with upper inter-post connecting portions 13 that are arranged in three rows at a predetermined distance from each other.
[0016] As shown in Figures 2, 3, and 5, the lower deck 6 extends in a direction parallel to a predetermined side edge of the pallet 1 and is provided with lower connecting bars 14 that connect the corner posts 2 and the intermediate posts 3, and the central posts 4 and the intermediate posts 3, respectively. However, the lower deck 6 is not provided with auxiliary connecting parts that connect the lower connecting bars 14 to each other, and the area surrounded by the lower connecting bars 14 is open. In other words, the lower deck 6 is provided with caster openings 15 in the area where the fork insertion parts 7 intersect, allowing casters attached to the underside of the forks of the hand lift to touch the ground.
[0017] As shown in Figure 5, the lower connecting rail 14 connecting the central column 4 and the intermediate column 3 has a lower connecting portion 17 that is roughly U-shaped and opens upward in a cross section perpendicular to the extension direction of the upper connecting rail 11, and has lower inter-column connecting portions 16 that are provided in two rows at a predetermined distance from each other. Each lower inter-column connecting portion 16 is inclined downward from the upper end of the lower connecting portion 17 toward the side in the width direction of the lower connecting rail 14 and has a ride-up guide portion 18 that makes it easier for the casters of the hand lift to ride up onto the lower connecting rail 14.
[0018] As described above, in this embodiment, the pallet 1 is formed as a single unit, and is basically formed using an upper mold and a lower mold that are displaceable relative to each other in the vertical direction, while the area surrounded by the corner posts 2, intermediate posts 3, upper connecting bars 11, and lower connecting bars 14 is formed using a mold that slides in the inner and outer periphery directions of the pallet 1. Furthermore, with regard to the upper connecting bars 11 and lower connecting bars 14 that connect the central post 4 and intermediate post 3, the upper inter-post connecting portion 13 and the lower inter-post connecting portion 16 are configured so that they do not overlap in a plan view, and the upper connecting bar 11 and lower connecting bar 14 are formed by the upper and lower molds together with the outer periphery of the central post 4 and intermediate post 3, etc.
[0019] As shown in Figures 3 and 4, the corner post portions 2, intermediate post portions 3, and central post portions 4 each have a substantially rectangular cylindrical outer peripheral wall portion 21 that extends in the up-down direction and constitutes the outer peripheral surface of the respective portions. The outer peripheral wall portion 21 has a reinforcing portion 23 formed by forming the middle portion of the target wall portion 22, which is linear and extends in a predetermined direction in a horizontal cross section, into a curved portion that is concave toward the inner peripheral side of the outer peripheral wall portion 21 (a substantially arc-shaped horizontal cross section). Each reinforcing portion 23 is provided continuously from the upper end to the lower end of the corner post portion 2, intermediate post portion 3, and central post portion 4 (extending the entire height of the corner post portion 2, intermediate post portion 3, and central post portion 4; see Figures 5, 6, etc.).
[0020] More specifically, the outer peripheral wall portion 21 of the corner post portion 2 includes an outer wall constituent portion 24 that constitutes the outer peripheral surface of the pallet 1, a first inner wall constituent portion 25 that faces the intermediate post portion 3 and defines the width of the fork insertion portion 7, and a corner wall portion 26 that connects the ends of the first inner wall constituent portions 25 at the boundary between the first inner wall constituent portions 25 at an angle of 45 to 50 degrees relative to the first inner wall constituent portions 25. The outer wall constituent portion 24 extends approximately parallel to (or approximately perpendicular to) each side edge of the pallet 1. The first inner wall constituent portion 25 is appropriately inclined and curved from the joint with the corner wall portion 26 toward the entrance of the fork insertion portion 7 so that the width of the fork insertion portion 7 gradually increases from the back side toward the entrance side of the fork insertion portion 7. The interior wall first constituent portion 25 is connected to the upper connecting rail 11 of the upper deck portion 5 and the lower connecting rail 14 of the lower deck portion 6, and the corner wall portion 26 is connected to the auxiliary connecting portion 12 of the upper deck portion 5. An intra-column full-height rib 27 is provided on the inside of the corner post portion 2, connecting the exterior wall constituent portion 24 and the interior wall first constituent portion 25 and running continuously from the upper end to the lower end of the corner post portion 2. In this embodiment, the corner wall portion 26 of each corner post portion 2 is the target wall portion 22, and a reinforcing portion 23 is provided at one location in the center of the corner wall portion 26 in the width direction.
[0021] The outer peripheral wall portion 21 of the intermediate pillar portion 3 comprises an outer wall constituent portion 24 that constitutes the outer peripheral surface of the pallet 1, an inner wall first constituent portion 25 that faces the corner pillar portion 2 and determines the width of the fork insertion portion 7, an inner wall second constituent portion 28 that faces the central pillar portion 4 and determines the width of the fork insertion portion 7, and corner wall portions 26 that connect the ends of the inner wall first constituent portion 25 and the inner wall second constituent portion 28 at a boundary between each inner wall first constituent portion 25 and the inner wall second constituent portion 28 at an angle of 30 to 40 degrees with respect to the inner wall first constituent portion 25. The outer wall constituent portion 24 and the inner wall second constituent portion 28 extend approximately parallel to (or approximately perpendicular to) each side edge portion of the pallet 1. The first inner wall component 25 is appropriately inclined and curved from the connection with the corner wall 26 toward the entrance of the fork insertion section 7 so that the width of the fork insertion section 7 gradually increases from the back side of the fork insertion section 7 toward the entrance side. The first inner wall component 25 and the second inner wall component 28 are connected to the upper connecting rail 11 of the upper deck section 5 and the lower connecting rail 14 of the lower deck section 6, and the corner wall 26 is connected to the auxiliary connecting rail 12 of the upper deck section 5. A full-height rib 27 is provided on the inside of the intermediate column 3, connecting the outer wall component 24, the first inner wall component 25, and the second inner wall component 28, and running from the upper end to the lower end of the intermediate column 3. In this embodiment, the corner wall 26 and the second inner wall component 28 of each intermediate column 3 are the target wall sections 22.
[0022] The second interior wall component 28 is provided with reinforcing portions 23 at two symmetrical locations spaced apart from both sides of the second interior wall component 28 and centered on the central portion of the second interior wall component 28 in the width direction. The reinforcing portions 23 of the second interior wall component 28 are formed to include at least a portion of the connection portion of the second interior wall component 28 with the lower connecting rail 14 of the lower deck 6. In particular, in this embodiment, each lower inter-column connection portion 16 of the lower connecting rail 14 connecting the central column 4 and the intermediate column 3 is connected to the reinforcing portion 23 through a general portion 29 of the second interior wall component 28 other than the reinforcing portion 23 (connected from the general portion 29 on one side of a given reinforcing portion 23 to the general portion 29 on the other side of the given reinforcing portion 23). The corner wall 26 of the intermediate column 3 also has a reinforcing portion 23 at one location in the central portion of the width direction.
[0023] The outer peripheral wall 21 of the central pillar 4 faces the intermediate pillar 3 and includes second inner wall constituent portions 28 that define the width of the fork insertion section 7, and corner wall portions 26 that connect the ends of the second inner wall constituent portions 28 at the boundaries between the second inner wall constituent portions 28 at an angle of approximately 45 degrees relative to the second inner wall constituent portions 28. The second inner wall constituent portions 28 extend approximately parallel to (or approximately perpendicular to) each side edge of the pallet 1. The second inner wall constituent portions 28 are connected to the upper connecting rails 11 of the upper deck 5 and the lower connecting rails 14 of the lower deck 6, and the corner wall portions 26 are connected to the auxiliary connecting portions 12 of the upper deck 5. An inner-pillar full-height rib 27 is provided on the inside of the central pillar 4, connecting the second inner wall constituent portions 28 and continuing from the upper end to the lower end of the central pillar 4. In this embodiment, each of the inner wall second constituent portions 28 of the central column 4 is the target wall portion 22. As with the inner wall second constituent portions 28 of the intermediate column 3, the inner wall second constituent portions 28 of the central column 4 are also provided with a pair of reinforcing portions 23 on the left and right, and the reinforcing portions 23 are formed so as to include at least a part of the connecting portion with the lower inter-column connecting portion 16 of the lower connecting rail 14 of the lower deck portion 6. It should be noted that no reinforcing portion 23 is formed on the corner wall portions 26 of the central column 4.
[0024] 1 and 2, the upper and lower ends of the corner posts 2, intermediate posts 3, and central posts 4 are partially closed for reinforcement. Furthermore, as shown in FIGS. 3, 4, and 6, the inside of the central post 4 is provided with a second inner wall. Component 28 A reinforcing rib 31 is provided extending from the center of the width direction of one of the pair of reinforcing parts 23 (the reinforcing part 23 located further forward in the clockwise direction when the horizontal cross section of the central column part 4 is viewed in plan) towards the inner periphery of the central column part 4 in a direction approximately perpendicular to the corresponding inner wall second constituent part 28. The reinforcing rib 31 is provided continuously from the upper end to the lower end of the central column part 4, and its upper and lower parts are connected via intervening ribs 32 to the intra-column full-height rib 27 and the outer periphery wall part 21 (inner wall second constituent part 28).
[0025] As described above, according to this embodiment, the outer peripheral wall portions 21 of the corner posts 2, intermediate posts 3, and central posts 4 are provided with reinforcing portions 23 formed by concavely curving the intermediate portions of the target wall portions 22, which are linear and extend in a predetermined direction in a horizontal cross section. The reinforcing portions 23 are continuously provided from the upper end to the lower end of the corner posts 2, intermediate posts 3, and central posts 4. Therefore, compared to imparting the same level of rigidity to the corner posts 2, intermediate posts 3, and central posts 4 simply by connecting ribs to the outer peripheral wall portions 21, the weight of the pallet 1 can be suppressed while effectively increasing the rigidity of the corner posts 2, intermediate posts 3, and central posts 4. As a result, bending deformation of the pallet 1 when items are placed on the pallet 1 can be more reliably prevented. Furthermore, by providing the reinforcing portion 23, the strength of the target wall portion 22 is increased, and it is possible to more reliably prevent the target wall portion 22 from being damaged when the fork comes into contact with the target wall portion 22.
[0026] Furthermore, the reinforcing sections 23 provided on the second inner wall constituent sections 28 of the intermediate columns 3 and the central columns 4 are formed so as to include at least a portion of the connection section of the second inner wall constituent section 28 with the lower inter-column connection section 16 of the lower connecting rail 14 of the lower deck section 6. This prevents a situation in which deformation occurring in the lower connecting rail 14 deforms the connection sections of the intermediate columns 3 and the central columns 4 with the lower connecting rail 14, resulting in a relatively large deformation of the pallet 1 as a whole (for example, when only a pair of opposing side edges of the underside of the pallet 1 are supported, if deformation occurs in the lower connecting rail 14 due to the weight of the central section of the pallet 1, and if deformation also occurs in the connection sections of the intermediate columns 3 and the central columns 4 with the lower connecting rail 14, the entire lower connecting rail 14 will be displaced downward, and the central section of the pallet 1 as a whole will bend downward more greatly).
[0027] In particular, in this embodiment, the lower connecting bar 14 that connects the intermediate column section 3 and the central column section 4 is connected between the general section 29, which is the section of the target wall section 22 other than the reinforcing section 23, and the reinforcing section 23. In other words, since rigidity against vertical compressive loads increases in sections where there is a change in surface in the horizontal cross section, particularly in sections where there is a relatively large change in surface, by connecting the lower connecting bar 14 so as to include the boundary between the general section 29 and the reinforcing section 23, it is possible to more effectively prevent stress generated in the lower connecting bar 14 from affecting the intermediate column section 3 and the central column section 4 and causing deformation of the intermediate column section 3 and the central column section 4.
[0028] Furthermore, the reinforcing portion 23 is recessed toward the inner periphery of the outer wall portion 21. This prevents the fork from coming into contact with the reinforcing portion 23 when inserting the fork into the fork insertion portion 7. This allows the fork to be inserted more smoothly into the fork insertion portion 7, and also prevents the reinforcing portion 23 from being damaged by contact with the fork.
[0029] The present invention is not limited to the above-described embodiment, and may be implemented as follows: Of course, other applications and modifications not exemplified below are also possible.
[0030] (a) In the above embodiment, the target wall portion 22 on which the reinforcing portion 23 is provided is linear in horizontal cross section, but for example, the reinforcing portion 23 may be provided in the middle portion of a target wall portion that is curved with a substantially constant curvature in horizontal cross section. Furthermore, the wall portion that serves as the target wall portion 22 in the corner post portion 2, intermediate post portion 3, and central post portion 4 is not particularly limited. For example, the first inner wall component portion 25 of the corner post portion 2 may be the target wall portion, or the outer wall component portion 24 of the intermediate post portion 3 may be the target wall portion. Alternatively, as shown in Figure 7, the reinforcing portion 23 may be provided in the corner wall portion 26 (not connected to the lower connecting bar 14) of the central post portion 4.
[0031] Furthermore, the number and positions of the reinforcing portions 23 provided on a predetermined target wall portion 22 are not particularly limited and can be changed as appropriate. For example, as shown in FIG. 7, three reinforcing portions 23 (or one or four or more) may be provided on the second inner wall component 28 of the central pillar portion 4. Furthermore, instead of the reinforcing portion 23 being formed by a curved portion as shown in FIG. 7, the reinforcing portion 41 may be formed by a bent portion having a substantially U-shaped cross section (or may have a substantially V-shaped cross section). In addition, instead of providing the reinforcing portion 23 in a concave shape toward the inner periphery of the outer peripheral wall portion 21 as shown in FIG. 7, a reinforcing portion 42 having a substantially V-shaped cross section that is convex toward the outer periphery of the outer peripheral wall portion 21, or a reinforcing portion 43 having a substantially arc-shaped cross section may be provided. Furthermore, even if the reinforcing portions 42 and 43 that protrude outward from the outer periphery of the outer wall portion 21 come into contact with the fork when it is inserted into the fork insertion portion 7, their inclined and curved surfaces can absorb the impact of the contact and guide the fork toward the center in the width direction of the fork insertion portion 7. However, by providing the reinforcing portion 23 in a concave shape facing the inner periphery of the outer wall portion 21, contact between the reinforcing portion 23 and the fork can be avoided altogether.
[0032] (b) In the above embodiment, the reinforcing portion 23 provided on the inner wall second constituent portion 28 of the intermediate column portion 3 and the central column portion 4 may be formed to include at least a part of the connecting portion of the inner wall second constituent portion 28 with the upper inter-column connecting portion 13 of the upper connecting bar 11. Furthermore, the lower inter-column connecting portion 16 of the lower connecting bar 14 that connects between the intermediate column portion 3 and the central column portion 4 may be configured to connect only with the reinforcing portion 23 of the inner wall second constituent portion 28, or may be configured to connect with a part of the reinforcing portion 23 of the inner wall second constituent portion 28 and the general portion 29.
[0033] (c) In the above embodiment, the pallet 1 is embodied as a single unit (integrally molded). However, the upper component, which includes the upper portions of the corner posts 2, intermediate posts 3, and central posts 4 and the upper deck 5, and the lower component, which includes the lower portions of the corner posts 2, intermediate posts 3, and central posts 4 and the lower deck 6, may be integrally formed from polypropylene, and the lower edge of the upper component may be welded (for example, by heat welding or vibration welding) to the upper edge of the lower component, thereby forming the pallet into which the upper and lower components are integrated. Here, by providing the reinforcing portion 23 in a concave shape toward the inner periphery of the outer wall portion 21, it is possible to avoid a situation in which the presence of the reinforcing portion 23 makes it difficult to remove excess resin resulting from welding. That is, if the reinforcing portion 23 is, for example, convex, it is necessary to scrape off the excess resin along the convex surface, but if the reinforcing portion 23 is concave, it is not necessary to remove the excess resin that is contained within the reinforcing portion 23 (not spilling out), and even if the excess resin spills out of the reinforcing portion 23, it is sufficient to simply scrape off the excess resin along the outer surface of the target wall portion 22. As a result, it is possible to improve the productivity of the pallet 1, etc.
[0034] Furthermore, when a pallet is constructed using upper and lower components, it is possible to provide a reinforcing section 23 that includes the connection portion between the upper connecting bar 11 and the lower connecting bar 14 of the outer wall section 21 without shifting the position of the upper inter-column connection section 13 of the upper connecting bar 11 of the upper deck section 5 and the lower inter-column connection section 16 of the lower connecting bar 14 of the lower deck section 6 in the horizontal direction (even if the shapes are symmetrical above and below).
[0035] (d) In the above embodiment, the pallet 1 is made of polypropylene, but it may be made of other resin materials such as polyethylene, PET, polyamide, etc. Also, in the above embodiment, the pallet is a four-way insertion type pallet that allows forks to be inserted from the four sides that make up the outer surface of the pallet 1, but it is also possible to adapt it to a two-way insertion type pallet that allows forks to be inserted from two sides. Furthermore, for example, it is also possible to embody it in a pallet that omits the lower deck portion 6. [Explanation of symbols]
[0036] 1...pallet, 2...corner column section, 3...intermediate column section, 4...central column section, 5...upper deck section, 6...lower deck section, 7...fork insertion section, 11...upper connecting bar, 13...connecting section between upper column sections, 14...lower connecting bar, 17...connecting section between lower column sections, 21...periphery wall section, 22...target wall section, 23...reinforcement section, 25...first interior wall component section, 26...corner wall section, 28...second interior wall component section.
Claims
1. A plurality of pillars; an upper deck portion connecting the upper ends of the plurality of pillar portions; a lower deck portion connecting the lower ends of the plurality of pillar portions, A pallet having a generally rectangular shape in plan view and integrally formed as a whole, in which fork insertion sections are formed between the plurality of pillars, into which forks of a transport means having forks can be inserted, The outer wall portion constituting the outer peripheral surface of the pillar portion is provided with a reinforcing portion configured by making an intermediate portion of a target wall portion that is linear or curved with a substantially constant curvature extending in a predetermined direction in a horizontal cross section into a convex or concave curved portion or a bent portion, The reinforcing portion is provided continuously from the upper end to the lower end of the column portion, The upper deck portion includes an upper connecting rail extending in a direction parallel to a predetermined side edge portion of the pallet and including an upper inter-column connecting portion connecting the columns, The lower deck portion includes a lower connecting rail extending in a direction parallel to a predetermined side edge portion of the pallet and including a lower inter-column connecting portion connecting the columns, At least a portion of the reinforcing portion is formed to include at least a portion of a connecting portion of the target wall portion with the lower inter-column connecting portion, The target wall portion is formed so that the reinforcing portion is not included in a connection portion between the target wall portion and the upper inter-column portion connection portion, A pallet characterized in that the lower inter-column connection portion is configured so as not to overlap the upper inter-column connection portion in a planar view.
2. 2. The pallet according to claim 1, wherein the reinforcing portion is recessed toward the inner periphery of the outer wall portion.
Citation Information
Patent Citations
Portable aviation tray with mounting and dismounting structure and manufacture technology thereof
CN102180298A
Synthetic resin pallet
JP1985195723U
Pallet made of synthetic resin
JP1997039966A
Rotary construction machine
JP2000291064A
palette
JP2007508215A