JP2001171667A - Pallet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pallet which creates no environmental problem, is quite sturdy and is maintenance free relative to wetness, etc. SOLUTION: A pallet 1 comprises a frame body 10 and a cover material 20 covering the frame body 10, and the frame body 10 is structured by welding a plurality of square iron pipes 11 in a grid shape. Between the pipes 11 on the upper side of the frame body 10, a suitable number of belt shape iron panels 12 are attached, and at the four corners on the lower side of the frame body 10, iron square enforcement leg parts 13 are attached diagonally. The covering material 20 is made of a soft, polyolefin/PP upper sheet body 21 and a PE bottom sheet body 22 pressure formed in advance. On the bottom sheet body 22, protrusions 23 protruding downward are provided at nine places totally, three crosswise and three lengthwise, and on the lower part of the bottom sheet body 22, recesses 24, two crosswise and two lengthwise, are provided relatively above.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet for carrying articles such as products thereon.

[0002]

2. Description of the Related Art Wooden pallets have been widely used as pallets for transporting goods. However, wooden pallets are not suitable for forest protection, are resistant to water and mold during rainfall, and are environmentally friendly to fumigation. There was a problem particularly in terms of environmental protection, such as the use of harmful chemicals.

In addition, resin pallets have insufficient strength and rigidity, so that any of a conveyor, a forklift, a hand fork, etc. that supports the pallets at different locations cannot be stably applied for a long period of time. Alternatively, it cannot be applied to an automatic warehouse rack storage system in which pallets are automatically carried in and out between a conveyor and a storage, and are multiply stacked in the storage.

[0004]

A metal pallet has been proposed to solve the above problems of the wooden pallet and the resin pallet. However, in the case of a metal pallet, since rust is particularly generated, there has been a problem that maintenance for removing the rust is required, and a storage place is limited to a place where rain can be avoided.

In view of the above problems, an object of the present invention is to provide a pallet which is environmentally friendly, has high strength, and is maintenance-free against water and the like.

[0006]

According to a first aspect of the present invention, there is provided a pallet, comprising: a pallet body formed by joining a plurality of metal pipes in a lattice; and a pallet body. A rectangular plate-shaped pallet comprising a resin-made covering material, wherein the covering material is formed by joining an upper sheet body and a lower sheet body in a watertight manner. According to the invention of claim 1, since the pallet is composed of the metal pallet main body and the resin covering material, high strength can be obtained by the metal pallet main body without violating environmental protection unlike a wooden pallet. The waterproof property is obtained by the resin covering material.

According to a second aspect of the present invention, in the pallet according to the first aspect, the lower sheet member has a concave portion that is concave upward at least two rows and two rows. According to the second aspect of the present invention, it becomes possible to insert a forklift, a hand fork, or the like into the recesses of the lower sheet body in two rows and columns from both the vertical and horizontal directions.

According to a third aspect of the present invention, in the pallet according to the first or second aspect, the pallet main body has metal reinforcing legs at four lower corners. Claim 3
According to the invention, the reinforcing leg is placed on the guide rail of the conveyor, and the pallet can be conveyed while receiving weight from the reinforcing leg.

According to a fourth aspect of the present invention, there is provided the pallet according to any one of the first to third aspects, wherein a metal long member is provided in parallel with each pipe between the parallel adjacent pipes on the upper side of the pallet body. It has been joined. According to the invention of claim 4, since the long member narrows the gap between the pipes, it is possible to place a small heavy object having a width equal to or less than the pitch between the pipes.

[0010]

1 to 5 show a pallet according to an embodiment of the present invention. FIG. 1 is a perspective view of a pallet, FIG. 2 is a perspective view of a pallet body, and FIG. 3 is a lower sheet member. FIG. 4 is a cross-sectional view of the upper sheet body, and FIG. 5 is an explanatory view showing a range of the width of the guide rail which can be supported by the reinforcing leg.

As shown in FIG. 1, the pallet 1 is formed in a rectangular plate shape from a frame body 10 as a pallet body and a covering material 20 that covers the frame body 10 and defines the outer periphery of the pallet 1. The width of the pallet 1 is set slightly longer than the height. As shown in FIG. 2, the frame body 10 basically includes eight iron square pipes 11 arranged in a grid pattern in a matrix of four in each direction, and intersections of the square pipes 11 are joined by welding. Become. On the upper side of the frame body 10, the vertical square pipe 11-square pipe 1 adjacent to each other in parallel
An appropriate number of strip-shaped iron plates 12 as long members are provided by welding in parallel with the vertical square pipes 11 between them. At the lower four corners of the frame body 10 are square pipes 11.
Reinforcing legs 13 formed by cutting a wide-open iron square pipe short are attached by diagonal welding so as to form a triangle with two square pipes 11 forming corners of the frame body 10.

The covering member 20 comprises a soft polyolefin / PP (polypropylene) upper sheet member 21 and a lower sheet member 22 of PE (polyethylene) shown in FIG. Upper sheet body 21
Is a rectangular flat portion 21a and a flat portion 21a as shown in FIG.
And a joining portion 21b bent downward from the peripheral edge of the connecting portion 21b.
On the lower surface of the plane portion 21a, fine irregularities matching the irregularities woven by the square pipe 11 and the iron plate 12 on the upper side of the frame body 10 are provided (not shown).

The lower sheet member 22 has a total of nine rows and columns of three rows and columns.
More specifically, a convex portion 23 projecting downward in a substantially rectangular parallelepiped shape is provided at a central portion, four corners, and an intermediate portion between each of the vertical and horizontal corners of the lower sheet body 22. Each convex part 23
Defines two recesses 24 vertically and horizontally at the bottom of the lower sheet member 22 which are relatively upwardly recessed. Further, on the periphery of the lower sheet body 22, a joining portion 21b of the upper sheet body 21 is provided.
Is provided on the outer side of the recess 24, and the portion 25 is set at a position slightly higher than the upper surface of the concave portion 24.

In order to manufacture the pallet 1 from the above-described frame body 10, upper sheet body 21 and lower sheet body 22, first, the upper sheet body 21 is mounted on the frame body 10 from above.
The lower sheet bodies 22 are respectively covered from below. At this time, the reinforcing legs 13 of the frame body 10 are densely housed vertically in the protrusions 23 at the four corners of the lower sheet body 22. Subsequently, the joined portion 25 of the lower sheet member 22 is superimposed on the inner side of the joined portion 21b of the upper sheet member 21, and a suitable sealing material such as silicone rubber, epoxy resin, urethane resin or the like is provided between the joined portion 21b and the joined portion 25. The pallet 1 can be obtained by sealing with a rivet (not shown) or performing high-frequency welding after sealing in a watertight manner.

In the pallet 1 described above, since the concave portions 24 are provided in the lower part in two rows each in the vertical and horizontal directions, the pallet 1 can be supported by inserting a forklift, a hand fork or the like in any of four directions, front, rear, left and right. Further, the iron plate 1 is provided between the square pipe 11 and the square pipe 11 of the frame body 10.
Since the pallet 1 is provided, a small heavy object having a width equal to or less than the pitch between the square pipes 11 can be placed on the pallet 1.

Further, the pallet 1 is transported by a chain-driven conveyor or the like such as a production line or an automatic warehouse rack storage system with articles such as products placed thereon. The reinforcing leg 13 covered with the convex portion 23 is placed on the pair of guide rails 30, 31, 32 (see FIG. 5), and the weight of the pallet 1 and the article on the pallet 1 is received by the reinforcing leg 13. Reinforcement leg 1
3 are provided diagonally, so that different widths W1, W2,
It is possible to support the guide rails 30, 31, 32 of W3.
This will be described in more detail below. FIG. 5 shows the pallet 1a as viewed from the horizontal side upward, and the pallet 1b as viewed from the vertical side slightly shorter than the horizontal width. Note that reference numerals 1a and 1b are used for distinguishing both pallets. The pallet 1b has an oblique reinforcing leg 13
Guide rail 3 having a width W1 to W2 (W2> W1)
0 and 31 can be handled. Furthermore, the pallet 1a is at maximum,
Since the guide rail 32 having the width W3 (W3> W2) can be used, the pallet 1 can flexibly support the guide rails 31, 32, and 33 having different widths W1 to W3.

[0017]

As described in detail above, according to the first aspect of the present invention, the pallet is composed of the metal pallet body and the resin covering material, so that the forest is cut down like a wooden pallet for environmental protection. It is lightweight and has high strength and high rigidity due to the metal pallet body without conflicting,
Waterproofness is obtained by the resin coating material, and maintenance-free against water getting wet.

According to the second aspect of the present invention, since the lower sheet body is provided with at least two vertical and horizontal concave portions, a forklift, a hand fork, and the like can be inserted into the two vertical rows from any direction. .

According to the third aspect of the present invention, the reinforcing legs are placed on the guide rails of the conveyor, and the pallets can be conveyed by receiving the weight from the reinforcing legs.

According to the fourth aspect of the present invention, since the long member narrows the gap between the pipes, a small heavy object having a width equal to or less than the pitch between the pipes can be placed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a pallet.

FIG. 2 is a perspective view of a pallet body.

FIG. 3 is a perspective view of a lower sheet member.

FIG. 4 is a cross-sectional view of the upper sheet body.

FIG. 5 is an explanatory view for convenience showing a range of guide rail widths that can be supported by the reinforcing legs.

[Explanation of symbols]

1 pallet, 10 frame, 11 square pipe, 1
2 ... iron plate, 13 ... reinforcement leg, 20 ... covering material, 21 ... upper sheet, 22 ... lower sheet, 23 ... convex, 24 ... concave

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Kikuo Suga, 20 Kotobuki-cho, Isesaki-shi, Gunma Sanden Co., Ltd. (72) Kunio Oshin 1-20-8 Fuchinobe, Sagamihara-shi, Kanagawa Japan Japan Chemical Equipment (72) Inventor Wakaburi Asahi 4-1-4 Miyahara, Yodogawa-ku, Osaka-shi RP East Plastic Co., Ltd. F-term (reference) 3E063 AA03 BA15 CA03 CA08 EE03 GG05 GG10

Claims (4)

[Claims] 1. A rectangular plate-shaped pallet comprising: a pallet body formed by joining a plurality of metal pipes in a grid pattern; and a resin coating material for covering the pallet body. A pallet comprising an upper sheet member and a lower sheet member joined in a watertight manner. 2. The pallet according to claim 1, wherein the lower sheet member has a concave portion that is concave upward at least two rows and two rows. 3. The pallet body has metal reinforcing legs at lower four corners thereof.
Palette of description. 4. The pallet according to claim 1, wherein a long metal member is joined between the parallel adjacent pipes on the upper side of the pallet body in parallel with the respective pipes. .