JPH05213357A - Resin pallet - Google Patents

Abstract

PURPOSE:To prevent the width of the fork insertion port in the thickness direction from reducing by a method wherein a reinforcing member which is closer to the form insertion port in the thickness direction is bent to the side which is closer to the form insertion port, and at the same time, the other reinforcing member is arranged to the recessed side of the bent part. CONSTITUTION:For the title resin pallet, a plurality of first reinforcing members 4a and a plurality of second reinforcing members 4b, which cross with the first reinforcing members 4a at a right angle, are joined at an overlapped part K. A pallet constituting body 6 is formed of a resin so that respective reinforcing members 4a, 4b can be embedded. Also, on the outer peripheral wall part 2A of the pallet constituting body 6, a fork insertion port 3A is formed at a location which is not overlapped with the overlapped part K in the thickness direction on the pallet constituting body 6. In this case, at the overlapped part K, a reinforcing member (a) at a closer side to the fork insertion port 3A in the thickness direction is bent toward the closer side to the fork insertion port 3A. In addition, the other reinforcing member 4b is arranged on the recessed side of the bent part to form the overlapped part K.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of elongated first reinforcing members arranged in parallel in a spaced manner and a plurality of elongated reinforcing members arranged in a posture orthogonal to the first reinforcing member. The elongated second reinforcing material is joined at the overlapping portion of the first reinforcing material and the second reinforcing material, and the pallet structure has the first structure.
The planar outer shape is resin-molded into a rectangular plate shape with the reinforcing material and the second reinforcing material embedded, and the fork insertion port is
The present invention relates to a resin pallet formed on the outer peripheral wall portion of the pallet structure in a position not overlapping the overlapping portion in the thickness direction of the pallet structure.

[0002]

2. Description of the Related Art Conventionally, in such a resin pallet, as shown in FIGS. 6 to 8, in the overlapping portion K of the first reinforcing member 4a and the second reinforcing member 4b, the first reinforcing member 4a is simply added. And the peripheral portions of the second reinforcing member 4b are brought into contact with each other and joined by a method such as welding. Then, the pallet structure 6 is resin-molded into a rectangular plate shape in a plane outer diameter in a state where the first reinforcing member 4a and the second reinforcing member 4b joined to each other as described above are embedded. In addition, fork insertion ports 3A, 3B for transferring by a forklift or the like.
Is formed on each of the four outer peripheral wall portions 2A and 2B of the pallet structure 6 at positions that do not overlap with the overlapping portion K in the thickness direction of the pallet structure 6, thus forming a four-way pallet. ..

[0003]

However, with the structure of the overlapping portion K as described above, since the width of the overlapping portion K in the thickness direction becomes large, the first reinforcing member 4a and the first reinforcing member 4a There is a difference in the positional relationship between the two reinforcing members 4b in the thickness direction. Therefore, of the insertion ports 3A and 3B, the one having a positional relationship with the first reinforcing member 4a and the second reinforcing member 4b that is orthogonal to the insertion direction of the insertion port is connected to the insertion port in the thickness direction. The insertion port located on the near side, that is, the insertion port 3A formed in the outer peripheral wall portion 2A in the above description of the prior art has a reinforcing member orthogonal to the insertion direction of the insertion port in the thickness direction. In comparison with the insertion port located on the side farther from the insertion port, that is, the insertion port 3B formed in the outer peripheral wall portion 2B, the width in the thickness direction thereof is 3A in the thickness direction. Located on the side close to the first and orthogonal to the insertion direction of the insertion port 3A
It becomes smaller because it is hindered by the reinforcing material 4a. Therefore, depending on the type of forklift, there is a case where the fork cannot be inserted into the insertion port having a small width in the thickness direction, so that there is no choice but to use as a two-way pallet, or the problem is solved. However, there is a problem in that the thickness of the pallet structure, that is, the thickness of the pallet must be increased in order to increase the width of the insertion port in the thickness direction. The present invention has been made in view of the above circumstances, and an object thereof is to provide a resin pallet capable of four-way insertion while avoiding an increase in the thickness of the pallet.

[0004]

A characteristic structure of a resin pallet according to the present invention is that, in the overlapping portion, one of the first reinforcing material and the second reinforcing material is inserted into the insertion port in the thickness direction. While curving the reinforcing material on the side closer to the side closer to the insertion port in the thickness direction, disposing the other reinforcing material on the concave side of the curved portion, the overlapping portion is It is in the point that is configured.

[0005]

According to the above characteristic structure, the non-curved portion of the reinforcing member of the first reinforcing member and the second reinforcing member which is curved in the overlapping portion is moved away from the insertion port in the thickness direction. Can be placed in position. Therefore, the positional relationship between the first reinforcing member and the second reinforcing member is such that the reinforcing member orthogonal to the inserting direction of the inserting port is positioned closer to the inserting port in the thickness direction. A state in which the reinforcing member on the side orthogonal to the insertion direction of the insertion port and the insertion port in a positional relationship in which the reinforcing member is located on the side farther from the insertion port in the thickness direction has the same width in the thickness direction. Can be formed with. By the way,
Alternatively, the first reinforcing material and the second reinforcing material are flatly formed and overlapped in the overlapped portion to reduce the width of the overlapped portion itself in the thickness direction, so that both of the above-mentioned insertion portions are inserted. A method is conceivable in which the mouths are formed so that the widths in the thickness direction are equal to each other. However, in this method, since the first reinforcing material and the second reinforcing material are formed flat in the overlapping portion, there is a problem that the strength of the overlapping portion is reduced. On the other hand, according to the present invention, when the first reinforcing material or the second reinforcing material is curved, the cross-sectional shape of the curved portion is substantially the same as the cross-sectional shape of the non-curved portion. Since it is curved at, the strength of the overlapping portion is not reduced.

[0006]

As a result, as in the above-described conventional case, the reinforcing member is such that the width of the insertion port in the thickness direction is located closer to the insertion port in the thickness direction and is orthogonal to the insertion direction of the insertion port. It is now possible to avoid the problem that it gets smaller because it is disturbed. Therefore, it is possible to provide a resin pallet capable of four-way insertion without increasing the thickness of the pallet and without lowering the strength.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 3, the resin pallet comprises a pair of rectangular loading plate-like portions 1 and four outer peripheral wall portions 2A and 2B connected to the lower surface side of the loading plate-like portion 1. And 4 are formed as main parts, and fork insertion ports 3A and 3B for transferring by a forklift or the like are formed in each of the four outer peripheral wall parts 2A and 2B. Further, in each loading board-shaped portion 1, six long tubular first reinforcing members 4a arranged in parallel with the outer peripheral wall portion 2A in parallel and spaced apart from each other, and a posture orthogonal to the first reinforcing member 4a. Six long tubular second reinforcing members 4b arranged side by side are embedded. 5 in the figure
Is an anti-slip rubber fitted to the loading board 1. In addition, each of the insertion ports 3A and 3B is formed at a position where the overlapping portion K of the first reinforcing member 4a and the second reinforcing member 4b does not overlap with the pallet thickness direction.

The resin pallet is the pallet structure 6-2.
It is configured by integrally joining the individual pieces.

The pallet structure 6 has one loading plate-shaped portion 1 and a first leg portion 2a for forming an outer peripheral wall portion 2A (hereinafter referred to as a first outer peripheral wall portion) having an insertion port 3A. And an outer peripheral wall portion 2B (hereinafter,
Second leg portion 2b for forming a second outer peripheral wall portion)
And a third leg portion 2c for forming the reinforcing wall portion 2C in the central portion of the pallet, and the first reinforcing material 4a and the second reinforcing material 4b are embedded in the loading board-shaped portion 1. In such a state, the planar outer shape is injection-molded with a synthetic resin into a rectangular plate shape. Incidentally, the two pieces of the pallet structure 6 are integrally joined by thermally welding the end portions of the leg portions 2a, 2b, 2c to each other.

At the four corners of the pallet, the first leg 2
a and the second leg portion 2b are connected to each other to form an integral structure.
Each leg 2a, 2b, 2c has a tubular shape when viewed as a whole, and a large number of reinforcing plate-like bodies 7 are arranged inside.

The loading board 1 has a plate shape when viewed as a whole, and the ribs 8 mesh other than the embedding points of the first reinforcing member 4a and the second reinforcing member 4b. It is formed into a shape.

The first reinforcing member 4a and the second reinforcing member 4b are made of round pipe material such as carbon steel for machine structure having the same diameter. Then, as shown in FIGS. 4 and 5, in the overlapping portion K of the first reinforcing member 4a and the second reinforcing member 4b,
Of the first reinforcing member 4a and the second reinforcing member 4b, the first reinforcing member 4a located closer to the insertion ports 3A, 3B in the pallet thickness direction is the insertion port 3A in the pallet thickness direction.
The first reinforcing member 4a and the second reinforcing member 4b are joined by welding in a state in which the second reinforcing member 4b is curved toward the side close to 3B and the other second reinforcing member 4b is arranged on the concave side of the curved portion. There is. In the longitudinal direction of the second reinforcing member 4b, the non-curved portion of the first reinforcing member 4a and the pallet thickness direction of the second reinforcing member 4b respectively, the pallet thickness direction of the peripheral portion on the side away from the insertion port 3A. The overlapping portion K is configured such that the positions of the above are substantially the same.

Regarding the bending of the first reinforcing member 4a, the first reinforcing member 4a is bent such that the cross-sectional shape of its curved portion is substantially the same as the cross-sectional shape of its non-curved portion. Also, regarding the first reinforcing member 4a and the second reinforcing member 4b that are brought into contact with each other and joined by welding, the first reinforcing member 4a and the second reinforcing member 4
They are welded by pressure welding so as to be joined in a state where they are in surface contact with each other.

Therefore, by constructing the overlapping portion K as described above, the non-curved portion of the curved first reinforcing member 4a in the overlapping portion K is positioned away from the insertion port 3A in the pallet thickness direction. Can be placed at.

Therefore, when viewed from the insertion direction of the insertion port 3A, the gap between the non-curved portions of the pair of upper and lower first reinforcing members 4a, 4a orthogonal to the insertion direction of the insertion port 3A, and the insertion of the insertion port 3B. In the direction view,
The space between the pair of upper and lower first reinforcing members 4b, 4b orthogonal to the insertion direction of the insertion port 3B can be made substantially the same. Therefore, the insertion opening 3A formed in the first outer peripheral wall portion 2A and the insertion opening 3B formed in the second outer peripheral wall portion 2B can be formed in a state where the widths in the pallet thickness direction are substantially the same. it can.

[Other Embodiments] Next, other embodiments will be listed.

In the above embodiment, the diameters of the first reinforcing member 4a and the second reinforcing member 4b are the same, but instead of this, the diameters of the first reinforcing member 4a and the second reinforcing member 4b are different. May be.

In the above embodiment, the first reinforcing material 4a is curved in the overlapping portion K, and the second reinforcing material 4b is arranged on the concave side of the curved portion. However, instead of this, In the overlapping portion K, the first reinforcing member 4a is inserted into the insertion port 3 in the pallet thickness direction.
The second reinforcing member 4b may be arranged so as to project in a rectangular or trapezoidal shape toward the side closer to A and 3B, and the concave portion side of the projecting portion.

In the above embodiment, the non-curved portion of the first reinforcing member 4a and the second reinforcing member 4b each have a pallet thickness direction in which the second reinforcing member 4b is viewed in the longitudinal direction.
The case where the overlapping portion K is configured such that the positions in the pallet thickness direction of the respective peripheral portions on the side away from is illustrated, but instead of this, the second reinforcing member 4b is used.
When viewed from the longitudinal direction, the positions of the non-curved portion of the first reinforcing member 4a and the second reinforcing member 4b in the pallet thickness direction of the peripheral portions on the side away from the insertion port 3A are different in the pallet thickness direction. The overlapping portion K may be configured.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a front sectional view of a resin pallet according to the present invention.

FIG. 2 is a partially cutaway plan view of a resin pallet according to the present invention.

FIG. 3 is a side sectional view of a resin pallet according to the present invention.

FIG. 4 is an enlarged front cross-sectional view of an overlapping portion of a resin pallet according to the present invention.

FIG. 5 is an enlarged side cross-sectional view of a superposed portion of the resin pallet according to the present invention.

FIG. 6 is a front sectional view of a conventional resin pallet.

FIG. 7 is a side sectional view of a conventional resin pallet.

FIG. 8 is an enlarged front cross-sectional view of an overlapping portion of a conventional resin pallet.

[Explanation of symbols]

 2A, 2B Outer peripheral wall portion 3A, 3B Insertion port 4a First reinforcing member 4b Second reinforcing member 6 Pallet structure K Stacked portion

Claims (1)

[Claims] 1. A plurality of elongate first reinforcing members (4a) arranged in parallel with a space therebetween, and the first reinforcing members (4a).
A plurality of long second reinforcing members (4b) arranged at intervals in a posture orthogonal to the first reinforcing member (4a) and the second reinforcing member (4b) overlapped with each other (K ), And the pallet structure (6) is joined to the first reinforcing member (4a).
And the second reinforcing member (4b) are embedded, the planar outer shape is resin-molded into a rectangular plate shape, and the fork insertion openings (3A) and (3B) are the outer peripheral walls of the pallet structure (6). The pallet structure (6) is provided in the parts (2A) and (2B).
A resin pallet formed in a position that does not overlap the overlapping portion (K) in the thickness direction of the first reinforcing material (4a) and the first reinforcing material (4a) in the overlapping portion (K). Among the second reinforcing members (4b), the reinforcing member located on the side closer to the insertion ports (3A) and (3B) in the thickness direction is the insertion port (3) in the thickness direction.
A), while curving toward the side close to (3B), and disposing the other reinforcing material on the concave side of the curved portion,
A resin pallet in which the overlapping portion (K) is configured.