JPH0354021Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field"
This relates to a synthetic resin pallet that can be suitably used when transporting bags made of paper, synthetic resin, etc., and particularly relates to a synthetic resin four-way pallet into which the forks of a forklift can be inserted from all sides. be.

"Prior art" As described in Japanese Utility Model Publication No. 51-24697, deck boards on both the front and back sides are connected by a plurality of cylindrical girders, and fork insertion holes are formed between the cylindrical girders. A single-sided synthetic resin four-way pallet with large through holes formed in the deck board on the back side of the part where the insertion holes are perpendicular to each other has been known for some time, but the conventional synthetic resin four-way pallet is shown in Figure 4. As shown in the figure, the corner A of the lower end of the cylindrical girder adjacent to the large through hole protrudes, so when bags are placed in multiple tiers, that is, when the next tier of pallets is stacked directly on top of the lower tier of bags, the area near the corner A protrudes. A had the disadvantage that it hit the bag on the lower shelf and the bag was easily torn.

``Problem that the invention aims to solve'' The inventors of this invention arrived at this invention as a result of their research into single-sided synthetic resin four-way pallets that are difficult to tear when loaded with bags and stacked in multiple tiers. did.

``Structure of the invention'' In this invention, the deck boards on both the front and back sides are connected by a plurality of cylindrical girders, fork insertion holes are formed between the cylindrical girders, and the deck board on the back side of the part where the fork insertion holes are perpendicular to each other. The present invention relates to a synthetic resin four-way pallet that can be used on one side and has a large through hole formed therein, and is characterized in that the lower corner of the cylindrical girder adjacent to the large through hole is chamfered. It is something.

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

Figure 1 is a perspective view showing an example of a synthetic resin four-way pallet according to the present invention, Figure 2 is a cross-sectional view taken along the line - in Figure 1, and Figure 3 is the same as shown in Figure 1. A partial bottom perspective view of a synthetic resin four-way pallet, and FIG. 4 is a bottom perspective view showing an example of a conventional synthetic resin four-way pallet.

The synthetic resin four-way pallet is injection molded from synthetic resin such as polyethylene or polypropylene, and has a deck board 1 on the front side and a deck board 2 on the back side. The parts are connected by cylindrical girders 3 at the corners, cylindrical girders 4 at the intermediate parts connecting the intermediate parts around the deck board, and cylindrical girders 5 at the center connecting the central parts of the deck boards. Fork insertion holes 6 and 7 are formed between the cylindrical beams 3, 4, and 5.
A large through hole 8 is formed in the deck board 2 on the back side of the part where the fork insertion holes 6 and 7 intersect at right angles, and the lower end corners of the cylindrical beams 3, 4 and 5 near the large through hole 8 are chamfered 9. has been done.

The deck board 1 on the front side is formed with a crosspiece 10 whose inner end protrudes into the rectangle along the periphery of the rectangle where the fork insertion holes 6 and 7 are orthogonal, and which hangs downward from the inner end of the crosspiece 10. Vertical ribs 11 are formed, and a vertically long rib 1 is connected to the vertical ribs 11 and extends diagonally within a rectangle.
2 are formed in a grid pattern. A plate-shaped portion 13 is partially formed at the upper end of the vertically long rib 12.
The deck board 1 on the front side has a crosspiece 14 connecting the cylindrical girder 3 at the corner and the cylindrical girder 4 at the middle part, and a gap is provided between the crosspiece 14 and the adjacent crosspiece 10. A crosspiece 15 is formed on the deck board 2 at a position corresponding to the gap to connect the cylindrical beam 3 at the corner and the cylindrical beam 4 at the middle. Further, on the deck board 1 on the front side, a plurality of crosspieces 16 are formed at intervals to connect the cylindrical girder 4 in the middle part and the cylindrical girder 5 in the center part, and on the deck board 2 on the back side, a plurality of crosspieces 16 are formed with gaps.
A plurality of crosspieces 17 are formed at positions corresponding to the gaps to connect the intermediate cylindrical girder 4 and the central cylindrical girder 5.

The synthetic resin pallets shown in FIGS. 1 to 3 overlap vertically with a space in between, except for the upper plate-like part 18 and the lower plate-like part 19 formed near the entrances of the fork insertion holes 6 and 7. Since there is no undercut part, the mold block enters from the side between the upper plate-like part 18 and the lower plate-like part 19;
Injection molding can be performed integrally using a mold block forming the front side of the synthetic resin pallet and a mold block forming the back side of the synthetic resin pallet.

"Effect of the invention" The single-sided synthetic resin four-way pallet according to the invention has a cylindrical girder 3 adjacent to a large through hole 8,
By making the lower corners of 4 and 5 chamfered 9, when bags are placed and stacked in multiple tiers, the bags will be torn when they hit the bag at the lower tier of the side corner of the deck board on the back side of the cylindrical girder that is in contact with the large through hole. There is no such thing.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing an example of a synthetic resin four-way pallet according to the present invention, Figure 2 is a cross-sectional view taken along the line - in Figure 1, and Figure 3 is the same as shown in Figure 1. A partial bottom perspective view of a synthetic resin four-way pallet, and FIG. 4 is a bottom perspective view showing an example of a conventional synthetic resin four-way pallet. 1, 2... Deck board, 3, 4, 5... Cylindrical girder, 6, 7... Fork insertion hole, 8... Through hole, 9
……chamfer.

Claims (1)

[Scope of utility model registration request] The deck boards on both the front and back sides are connected by multiple cylindrical girders, fork insertion holes are formed between the cylindrical girders, and a large through hole is formed in the deck board on the back side where the fork insertion holes intersect at right angles. A synthetic resin four-way pallet for use, characterized in that the corners of the lower ends of the cylindrical girders adjacent to large through holes are chamfered.