JPH0664649A - Integral synthetic resin-made double-face stacking pallet - Google Patents

Abstract

PURPOSE:To obtain a double-face stacking pallet free from slippery movement on a fork during loading and unloading operations by a method wherein the synthetic resin-made pallet having both the upper and lower faces formed of lattice-like deck is provided with a structure for securing the antislipping members in the pallet. CONSTITUTION:A surface deck 1 has the shape of a lattice having horizontal and vertical crosspieces 2 and 3 intersecting at right angles and a cylindrical part 4 is supported by these crosspieces. The cylindrical part 4 is provided with an annular part 5 on its inner surface in a position higher than the rear side of the surface deck 1. A hard rubber-made antislipping member 9 is inserted into the cylindrical part 4 with its head part 7 in contact with the inner surface of the cylindrical part 4 and with its groove 8 near the lower end thereof in engagement with the annular part 5 of the cylindrical part 4, whereby the slipping member 9 is secured in place. This palletizing method does not require any complicated metal die in the making of the pallet, permits the antislipping member to be secured in the deck of a fork inserting opening by only driving it in the opening and prevents the detachment of the antislipping member from the pallet during use.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet integrally formed of synthetic resin, having a fork insertion port for two-way insertion or four-way insertion which can be carried and loaded by a forklift, and the pallet is a fork during operation. On the other hand, the present invention relates to a double-sided type pallet provided with a non-slip material so as not to slip.

[0002]

2. Description of the Related Art Since synthetic resin pallets are slippery with respect to metal forks, various contrivances have been made in the past. For example, as is known from Japanese Patent Publication No. 63-44625, there is known a type in which hard rubber having a large friction coefficient is forcibly driven into a hole provided in a pallet. However, this known non-slip material mounting structure relates to a pallet in which the upper half and the lower half are separately molded and then integrated by thermal welding or the like after molding,
It is not a type in which the whole is integrally molded from the beginning, and it is difficult to mold the above structure in the case of integral molding.

Further, as is known from Japanese Utility Model Laid-Open No. 3-1263833, a fork insertion port is provided in order to provide a horizontally projecting rib for fixing and fixing the anti-slip material in the integrally formed pallet in the surface deck. There is known a type in which an undercut portion of a protruding rib is formed by a slide core that is vertically movably fitted into a slide mold to be formed. However, this known anti-slip material mounting method has a high mold cost because the mold structure is complicated. Therefore, there are problems that productivity is lowered, mold troubles are likely to occur, and mold maintenance costs are high.

[0004]

SUMMARY OF THE INVENTION In view of the above points, the present invention has a top and bottom surfaces formed of crosspiece decks, and is integrally formed of a two-way or four-way insertable synthetic resin. An object of the present invention is to provide a pallet having a structure for fixing an anti-slip material by a simple and inexpensive mold structure.

[0005]

According to the present invention, a cross-shaped front deck and a cross-shaped lower deck are connected by a plurality of cylindrical girders.
In an integrally molded double-sided type synthetic resin pallet in which a fork insertion opening is formed between tubular girders, a cylindrical portion supported by a crosspiece is formed on either or both of a front deck and a lower deck, and the inside of the cylindrical portion is formed. A ring-shaped portion protruding inward is formed at a position raised one step from the back side of the deck, and a cutout portion reaching from the end of the deck to the semicircular portion of the lower end of the cylindrical portion is formed on the back side of the deck, and Integrally molded double-sided type synthetic resin pallet characterized in that a head part is inscribed in the cylindrical part, and a non-slip material in which a concave groove provided near the lower end is fitted into a ring-shaped part is provided in the cylindrical part Is.

[0006]

FIG. 1 is a sectional view of a front deck 1 at a portion where fork insertion openings of a pallet according to an embodiment of the present invention intersect with each other. It is in the shape of a lattice, and the cylindrical portion 4 is supported by the crosspieces 2 and 3. A ring-shaped portion 5 protruding inward at a position raised one step from the back side of the front deck 1 in the cylindrical portion 4.
Are formed. As shown in FIG. 2, a notch 6 is provided on the back side of the front deck 1 so as to reach the semicircular portion at the lower end of the cylindrical portion 4 from the end of the front deck 1.

The cylindrical portion 4 of the front deck 1 is provided with a non-slip member 9 made of hard rubber, in which a head portion 7 is inscribed in the cylindrical portion 4 and a groove 8 provided near the lower end is fitted into the ring portion 5. ing. The anti-slip material 9 is driven in from above in FIG. 1, and the concave groove 8 is fitted into the annular portion 5 of the cylindrical portion 4 and fixed.

The pallet according to the present invention can be molded by using a fixed mold 11 and a movable mold 10 facing each other in the vertical direction and a slide mold 12 for forming a fork insertion opening. FIG. 3 is a view showing a part of the slide mold 12. The slide mold 12 has a draft angle of about 0.5 ° to 1 ° in consideration of the releasing property of the pallet. Further, in order to form the ring-shaped portion 5, the straight portion 1 is formed so that the slide mold 12 is not partially inclined from the lower portion of the ring-shaped portion 5 toward the slide mold 12 in the pull-out direction.
3 is provided, and the straight portion 13 forms a cutout portion 6 that extends from the end portion of the front deck 1 to the semicircular portion at the lower end of the cylindrical portion 4 on the back surface side of the front deck 1.

In the above description, the embodiment in which the anti-slip material 9 is provided on the front deck 1 has been described, but the anti-slip material 9 can also be provided on the back deck in the same manner.

[0010]

EFFECTS OF THE INVENTION According to the present invention, in a double-sided or two-way or four-way injection-injection-molding synthetic resin pallet, a complicated mold structure having a slide core fitted into a slide mold is provided. The anti-slip material can be fixed by simply driving the anti-slip material from the upper surface to the predetermined position in the deck of the fork insertion port without requiring
Moreover, the non-slip material does not fall off during use of the pallet. Further, by appropriately selecting the size of the non-slip material, both the anti-slip effect of the luggage on the deck surface and the anti-slip of the fork can be achieved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an example of a synthetic resin pallet according to the present invention.

FIG. 2 is a perspective view of the front deck of the synthetic resin pallet according to the present invention as viewed from the back side.

FIG. 3 is a sectional view showing an example of a mold for molding a synthetic resin pallet according to the present invention. 1 Surface deck 2 Crosspiece 3 Crosspiece 4 Cylindrical part 5 Ring part 6 Notch part 7 Head part 8 Groove 9 Non-slip material

Claims (1)

[Claims] 1. A monolithic double-sided synthetic resin pallet in which a bar-shaped front deck and a bar-shaped lower deck are connected by a plurality of tubular girders and a fork insertion port is formed between the tubular girders. Is formed with a cylindrical portion supported by a crosspiece on one or both of the lower decks, and an inwardly projecting ring-shaped portion is formed at a position raised one step from the rear surface side of the deck in the cylindrical portion, and on the rear surface side of the deck. A notch is formed from the end of the deck to reach the semicircular portion at the lower end of the cylindrical portion, and the head is inscribed in the cylindrical portion and a groove provided near the lower end fits into the annular portion. An integrally molded double-sided synthetic resin pallet that is equipped with anti-slip material.