JP4117709B2 - Plastic pallet - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a synthetic resin pallet having a fork insertion slot used when various articles are transported.
[0002]
[Prior art]
Conventionally, a fork insertion port is formed on the side of a synthetic resin pallet with adjacent beams and a beam formed vertically between the beams, and a reinforcing edge is projected from the side wall of the beam to the fork insertion port side. A synthetic resin pallet in which the insertion port is reinforced is known (for example, Japanese Utility Model Publication No. 7-52018).
[0003]
[Problems to be solved by the invention]
In conventional plastic pallets, the thickness of the girder where the reinforcing edges protrude is increased, so the difference in shrinkage from other thin parts in the cooling stage of the plastic pallet after molding There was a problem that the synthetic resin pallet was deformed.
[0004]
In addition, since the reinforcing edge protrudes horizontally from the girder, dust or rainwater is easily accumulated on the upper surface of the reinforcing edge, or the reinforcing edge protrudes, so that the cleaning property is improved. There was a problem of lowering. Furthermore, there is a problem that the strength of the upper corner portion of the fork insertion port where loads are concentrated when the fork is lifted is not sufficient only by providing such a reinforcing edge. It was.
[0005]
The objective of this invention is providing the synthetic resin pallet which improved the durability, the washability, etc. while solving the subject which the conventional synthetic resin pallet mentioned above has.
[0006]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention provides a curved portion in which a side wall facing a fork insertion port of a girder is located at an upper corner of the fork insertion port and has a predetermined radius of curvature, and an upper end of the curved portion And the upper end surface of the vertical portion is flush with the upper end surface of the width-direction rib and the upper end surface of the depth-direction rib constituting the lattice-shaped crosspiece. And the lower end surface of the vertical portion, that is, the upper end portion of the curved portion, is formed flush with the lower end surface of the width direction rib and the lower end surface of the depth direction rib constituting the lattice-shaped crosspiece. Furthermore, vertical ribs perpendicular to the surface are connected to the inner surface of the side wall of the spar facing the fork insertion port of the spar at a predetermined interval. A predetermined distance from the inner surface of the side wall facing the mouth The vertical rib connected to the vertical rib is parallel to the inner surface of the side wall of the spar and is perpendicular to the inner surface of the side wall of the spar facing the fork insertion port Still further, a horizontal rib connected to the lower end of the curved portion extends from the lower end of the vertical rib, and the inner surface of the side wall of the side wall facing the fork insertion port of the girder Parallel to an inner surface of the side wall of the spar formed at a predetermined distance from the inner surface of the side wall of the spar facing the fork insertion port of the spar, The vertical rib perpendicular to the inner surface of the side wall of the spar facing the fork insertion port, and a horizontal rib extending from the lower end of the vertical rib to be connected to the lower end of the curved portion and is obtained by forming in said digit.
[0007]
【Example】
1 is a plan view of a synthetic resin pallet according to the present invention, FIG. 2 is a perspective view of a corner portion of the synthetic resin pallet according to the present invention, and a partial cross section along the line AA in FIG. 3 is a perspective view of the vicinity of the corner of the synthetic resin pallet including FIG. 3 and FIG. 4 is a perspective view of the vicinity of the fork insertion opening of the synthetic resin pallet including a partial cross section along the line BB in FIG. Examples of the present invention will now be described, but the present invention is not limited to these examples as long as the gist of the present invention is not exceeded.
[0008]
As an example, P is a so-called four-way synthetic resin pallet having two fork insertion ports 1 on each side surface. The synthetic resin pallet P includes a front deck board 2 and a back deck board. 3. The front deck board 2 and the back deck board 3 are respectively positioned at the four cylindrical corner girders 4 located at the corners, the four cylindrical middle girders 5 located between the corners 4 and the center. Are connected by one cylindrical central beam 6.
[0009]
The corner girders 4 and the intermediate girders 5 are respectively connected by a lattice-like cross 7 in which vertically long plate-like ribs that are part of the surface deck board 2 are arranged in a lattice and a bottom 1 a of the fork insertion slot 1. Has been. The grid-like crosspiece 7 has ribs (hereinafter simply referred to as “width-direction ribs”) 7a along the width direction of the front edge of the fork insertion slot 1 and a direction orthogonal to the width direction of the front edge of the fork insertion slot 1, that is, In addition, ribs (hereinafter simply referred to as “depth-direction ribs”) 7b along the depth direction of the fork insertion opening 1 are arranged in a lattice pattern. The fork insertion slot 1 is formed so as to be surrounded by the side wall 4a of the opposite corner beam 4, the side wall 5a of the intermediate beam 5, the lattice-like bar 7, and the bottom 1a.
[0010]
As shown in FIG. 3, the side wall 4a of the corner beam 4 facing the fork insertion port 1 has a predetermined radius of curvature on the fork insertion port 1 side at the upper corner of the fork insertion port 1 on the corner beam 4 side. And a vertical portion 4c extending vertically upward from an upper end portion 4b 'of the curved portion 4b. The upper end surface 4c' of the vertical portion 4c Are formed flush with the upper end surface 7a 'of the width direction rib 7a and the upper end surface 7b' of the depth direction rib 7b, and the upper end of the vertical portion 4c, that is, the upper end of the curved portion 4b. The portion 4b ′ is formed flush with the lower end surface 7a ″ of the width direction rib 7a and the lower end surface 7b ″ of the depth direction rib 7b constituting the lattice-like cross piece 7. As described above, the upper corner portion on the corner beam 4 side of the fork slot 1 is configured as a curved portion 4b formed integrally with the corner beam 4 by bending the side wall 4a itself of the corner beam 4. Therefore, in particular, it is possible to reinforce the upper corner portion of the fork insertion port 1 where the load is concentrated, and the curved portion 4b is formed to be curved with a predetermined radius of curvature. Is less likely to accumulate and the cleaning properties are improved.
[0011]
Further, as shown in FIG. 3, the side wall 5 a of the intermediate beam 5 facing the fork insertion port 1 also has a predetermined portion on the fork insertion port 1 side at the upper corner of the fork insertion port 1 on the intermediate beam 5 side. And a vertical portion 5c extending vertically upward from an upper end portion 5b ′ of the curved portion 5b, and an upper end surface 5c ′ of the vertical portion 5c. Is formed to be flush with the upper end surface 7a 'of the width direction rib 7a and the upper end surface 7b' of the depth direction rib 7b constituting the lattice-like cross 7, and the lower end surface of the vertical portion 5c, that is, the curved portion. The upper end portion 5b ′ of 5b is formed flush with the lower end surface 7a ″ of the width-direction rib 7a and the lower end surface 7b ″ of the depth-direction rib 7b constituting the lattice-like cross piece 7. As described above, the upper corner of the fork insertion slot 1 on the intermediate beam 5 side is configured as a curved portion 5b formed integrally with the intermediate beam 5 by bending the side wall 5a of the intermediate beam 5 itself. Therefore, in particular, it is possible to reinforce the upper corner portion of the fork slot 1 where the load is concentrated, and the curved portion 5b is curved with a predetermined radius of curvature. Is less likely to accumulate and the cleaning properties are improved.
[0012]
As shown in FIG. 4, a plate-like vertical rib 8 perpendicular to the surface 5 a ′ is provided on the inner surface 5 a ′ of the side wall 5 a facing the fork insertion slot 1 of the intermediate beam 5. The side walls 5a are connected to each other at a predetermined distance, and at a position away from the surface 5a 'on the inner side of the side wall 5a by a predetermined distance, are parallel to the surface 5a', that is, perpendicular to the vertical rib 8 and A vertical plate-like vertical rib 9 connected to the vertical rib 8 is provided, and a horizontal rib 9a connected to the lower end 5b ″ of the curved portion 5b extends from the lower end of the vertical rib 9. The horizontal rib 9a is provided with a drain hole 9a 'for draining rain water and washing water.The upper end surface 8' of the vertical rib 8 perpendicular to the inner surface 5a 'of the side wall 5a. And the upper end surface 9 ′ of the vertical rib 9 parallel to the inner surface 5 a ′ of the side wall 5 a is the top of the width direction rib 7 a constituting the lattice-like cross 7. Surface 7a 'and the upper end face 7b of the depth direction ribs 7b' and are flush. Where necessary, the horizontal ribs 9a can be omitted.
[0013]
As described above, the vertical rib 8 connected to the inner surface 5a 'of the side wall 5a facing the fork insertion port 1 of the intermediate beam 5, the vertical rib 9 parallel to the inner surface 5a' of the side wall 5a, The horizontal ribs 9 a extending from the lower ends of the vertical ribs 9 can be formed in the girders of the corner girders 4.
[0014]
As described above, the vertical rib 8 connected to the inner surface 5a ′ of the side wall 5a facing the fork insertion port 1 of the intermediate beam 5 and the vertical rib 9 parallel to the inner surface 5a ′ of the side wall 5a are provided. If necessary, the upper corner of the fork insertion slot 1 on the side of the intermediate beam 5 can be further reinforced by forming it in the intermediate beam 5. Similarly, by forming such a structure in the beam of the corner beam 4 as necessary, the upper corner portion on the corner beam 4 side of the fork slot 1 can be further reinforced.
[0015]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
[0016]
The top corner of the fork slot, especially the fork slot where the load is concentrated, can be reinforced, and the upper corner is curved so that it is difficult for dust and rainwater to collect in this area. This will improve the cleaning performance.
[0017]
Since the vertical rib is formed in the beam, the strength near the upper corner of the fork insertion port can be further improved.
[Brief description of the drawings]
FIG. 1 is a plan view of a synthetic resin pallet according to the present invention.
FIG. 2 is a perspective view of a corner portion of the synthetic resin pallet of the present invention.
3 is a perspective view of the vicinity of a corner of a synthetic resin pallet including a partial cross section taken along the line AA in FIG. 1. FIG.
4 is a perspective view of the vicinity of a fork insertion port of a synthetic resin pallet including a partial cross section along the line BB in FIG. 4; FIG.
[Explanation of symbols]
P ... Plastic plastic pallet 1 ... Fork insertion slot 2 ... Front deck board 3 ... Back deck board 4 .... Corner beam 5 ... Intermediate beam 6 ... Center beam 7 ... Grid bars

Claims (1)

A side wall facing the fork insertion port of the girder has a curved portion located at the upper corner of the fork insertion port and having a predetermined radius of curvature, and a vertical portion extending vertically upward from the upper end of the curved portion And the upper end surface of the vertical portion is formed flush with the upper end surface of the width direction rib and the upper end surface of the depth direction rib constituting the lattice-shaped crosspiece, and the lower end surface of the vertical portion, That is, the upper end portion of the curved portion is formed flush with the lower end surface of the width direction rib and the lower end surface of the depth direction rib constituting the lattice-shaped crosspiece, and further faces the fork insertion port of the beam. Vertical ribs perpendicular to the surface are connected to the inner surface of the side wall spar at a predetermined interval, and further, a predetermined distance from the inner surface of the side wall of the side wall facing the fork insertion port of the spar. At a remote location, the side wall of the side wall And a vertical rib connected to the vertical rib perpendicular to the inner surface of the side wall of the spar facing the fork insertion port of the spar is formed, and further from the lower end of the vertical rib A horizontal rib connected to the lower end of the curved portion is extended, and the vertical rib perpendicular to the inner surface of the side wall of the side wall facing the fork insertion port of the beam and the fork insertion of the beam Formed at a predetermined distance from the inner surface of the side wall of the side wall facing the mouth, parallel to the inner side surface of the side wall of the side wall and on the inner surface of the side wall of the side wall facing the fork insertion port of the beam The vertical ribs perpendicular to the vertical ribs and horizontal ribs extending from the lower ends of the vertical ribs to be connected to the lower ends of the curved portions are formed in the girders. Synthetic resin pallet.

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