JPH11321863A - Synthetic resin pallet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the bending rigidity of a part in the vicinity of a girder subjected to a largest load without increasing the weight of a synthetic resin pallet. SOLUTION: In a synthetic resin pallet having girders 1, 2, 3 to connect deck boards opposite to each other, at least the interval between ribs 4a, 5a closest to the girders among a plurality of ribs 4, 5 formed approximately parallel to side walls 1a, 2a, 3a of the girders is narrower than the interval between other ribs formed approximately parallel to the side walls 1a, 2a, 3a of the girders. The rib closest to the girder and the side wall of the girder may be connected to adjacent ribs approximately orthogonal to the side walls of the girder.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin pallet having a fork insertion opening on a side surface.

[0002]

2. Description of the Related Art A conventional synthetic resin pallet as an example will be described with reference to FIG. 5 which is a front view of a conventional synthetic resin pallet and FIG. 6 which is a horizontal sectional view of the conventional synthetic resin pallet.

Conventionally, opposing deck boards p1, p1
To connect the opposing deck boards p1, p1
Corner girder 1 provided at two corners, an intermediate girder 2 provided in the middle between the corner girder 1, and opposing deck boards p1, p1
In the synthetic resin pallet P having the central girder 3 disposed at the center of the pallet, the back surfaces of the opposing deck boards p1, p1 (the opposing surfaces of the opposing deck boards p1, p1 are referred to as back surfaces). 6, ribs 4 and 5 extending in a lattice shape at substantially equal intervals in parallel with the side walls of the corner girder 1, the intermediate girder 2 and the center girder 3 (hereinafter, for convenience of explanation, FIG. There is known a synthetic resin pallet P on which left-right ribs 4 are referred to as horizontal ribs and vertical ribs 5 are referred to as vertical ribs.

[0004]

When the above-mentioned conventional synthetic resin pallet P is mounted on a sleeper 6 as shown in FIG. 5, for example, the corner girder 1 side of the deck board p1 Since a load is applied to the intermediate girder 2 side and the center girder side vicinity p1 ′, as shown by a dash-dot-dot line,
There is a problem that the central portion of the synthetic resin pallet P is bent.

An object of the present invention is to solve the problems of the above-mentioned conventional synthetic resin pallets.

[0006]

According to the present invention, there is provided a synthetic resin pallet having a girder for connecting opposing deck boards. First, the opposing deck boards are connected. A synthetic resin pallet having a spar, and among a plurality of ribs formed substantially parallel to the side wall of the spar, at least a distance between a rib closest to the spar and a side wall of the spar is set to the side wall. Second, the width of at least the rib closest to the spar is made wider than the width of the other ribs. Third, the rib closest to the spar and the side wall of the spar are connected by an adjacent rib substantially perpendicular to the side wall of the spar. Fourth, the width of the adjacent rib and the rib From the side wall of the girder to the rib closest to the girder The width of the portion, in which each was wider than the width of the other rib.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 4 which are horizontal sectional views of a synthetic resin pallet similar to FIG. However, the present invention is not limited to this embodiment. Note that the same reference numerals are used for the same components as the above-described conventional synthetic resin pallets, such as a deck board, a corner girder, an intermediate girder, and a center girder.

As shown in FIG. 1, in this embodiment, each side wall 1a, 2a, 3a of a corner girder 1, an intermediate girder 2 and a center girder 3 connecting opposing deck boards p1, p1.
Among the horizontal ribs 4 and the vertical ribs 5 formed substantially in parallel with each other, at least the horizontal ribs 4a and the vertical ribs 5a closest to the corner girder 1, the intermediate girder 2 and the center girder 3, and the corner girder 1, Intermediate digit 2
And the distance d1 between each side wall 1a, 2a, and 3a of the center girder 3
Is made narrower than the rib interval d2 between the other horizontal ribs 4 and vertical ribs 5 formed substantially parallel to the side walls 1a, 2a and 3a. As described above, the horizontal ribs 4a and the vertical ribs 5a which are closest to the corner girder 1, the middle girder 2 and the center girder 3, and the side walls 1a, 2a and 3a of the corner girder 1, the middle girder 2 and the center girder 3 respectively. Increase the weight of the synthetic resin pallet P by making the distance d1 between the pallet P and the other horizontal ribs 4 and the vertical ribs 5 formed substantially parallel to the side walls 1a, 2a and 3a smaller. Instead, the bending rigidity of this portion can be increased.

A horizontal rib 4a and a vertical rib 5a which are closest to the corner girder 1, the middle girder 2 and the center girder 3;
By making the distance d1 between the side walls 1a, 2a, 3a of the intermediate girder 2 and the center girder 3 smaller than the rib distance d2 of the other horizontal ribs 4 and the vertical ribs 5, the fork insertion port 7 of the synthetic resin pallet P is formed. Since the strength in the vicinity of the corner increases, a portion to which a load is applied when the synthetic resin pallet P is lifted by inserting a fork into the fork insertion port 7 can be reinforced.

The embodiment shown in FIG. 2 shows the width w1 of the horizontal rib 4a and the vertical rib 5a closest to the corner girder 1, the middle girder 2 and the center girder 3 shown in FIG. Is formed wider than the width w2 of the other horizontal ribs 4 and the vertical ribs 5 having a large rib interval. In this manner, the horizontal girder closest to the corner girder 1, the middle girder 2 and the center girder 3 is formed. By forming the width w1 of the ribs 4a and the vertical ribs 5a to be wide, the bending rigidity in the vicinity of the girder where the load is most applied can be further increased. Also, if necessary, the width of the horizontal ribs 4 'and the vertical ribs 5' along the side walls 1a, 2a, 3a of the corner girder 1, the intermediate girder 2 and the center girder 3 may be similarly widened. Accordingly, it is possible to further increase the bending rigidity in the vicinity of the spar.

The embodiment shown in FIG. 3 shows a horizontal rib 4a and a vertical rib 5a which are closest to the corner girder 1, middle girder 2 and center girder 3, a corner girder 1, middle girder 2 and center girder. Each side wall 1a, 2a, 3a of the spar 3 is connected to the corner spar 1, the middle spar 2,
Are connected to adjacent side walls 1a, 2a, 3a by adjacent ribs 8 which are substantially perpendicular to each other. In FIG. 3, the adjacent ribs 8 have a wide horizontal rib 4 and a vertical rib which are orthogonal to the horizontal rib 4 a and the vertical rib 5 a which are closest to the corner girder 1, the intermediate girder 2 and the center girder 3, respectively. Although an example in which one is formed in the middle of 5 is shown, a plurality may be formed as necessary. As described above, by forming the adjacent ribs 8 more densely than other ribs, it is possible to further increase the bending stiffness in the vicinity of the spar.

The embodiment shown in FIG. 4 is different from the embodiment shown in FIG. 3 in that, of the width w3 of the adjacent ribs 8, the horizontal ribs 4, and the vertical ribs 5, the corner girder 1, the middle girder 2 and the center girder 3 are formed. Each side wall 1a, 2
The width w4 of a portion located from a, 3a to the horizontal rib 4a and the vertical rib 5a closest to the corner girder 1, the middle girder 2 and the center girder 3 is formed wide. With such a configuration, it is possible to further increase the bending rigidity in the vicinity of the spar.

In the embodiment described above, the horizontal ribs 4a and the vertical ribs 5a are provided on the back surfaces of the opposing deck boards p1 and p1.
Was formed, but the deck boards p1 and p1 themselves were formed into a knitted structure by the horizontal ribs 4a and the vertical ribs 5a.
That is, a synthetic resin pallet in which through holes are formed in the deck boards p1 and p1 by the horizontal ribs 4a and the vertical ribs 5a,
The present invention can also be applied.

In this embodiment, two fork insertion ports 7 are provided on each side of the synthetic resin pallet P, respectively.
Is formed, a so-called four-way synthetic resin pallet P
However, the present invention can also be applied to a so-called two-way synthetic resin pallet in which a fork insertion opening is formed only on one opposite side surface of the synthetic resin pallet.

[0015]

Since the present invention has the above-described structure, the following effects can be obtained.

The bending stiffness in the vicinity of the girder where the load is most applied can be increased without increasing the weight of the synthetic resin pallet.

[Brief description of the drawings]

FIG. 1 is a horizontal sectional view of a synthetic resin pallet of the present invention.

FIG. 2 is a horizontal sectional view of another embodiment of the synthetic resin pallet of the present invention.

FIG. 3 is a horizontal sectional view of still another embodiment of the synthetic resin pallet of the present invention.

FIG. 4 is a horizontal sectional view of still another embodiment of the synthetic resin pallet of the present invention.

FIG. 5 is a front view of a conventional synthetic resin pallet.

6 is a horizontal sectional view of the conventional synthetic resin pallet taken along the line II of FIG. 5;

[Explanation of symbols]

 P ······ Palette made of synthetic resin 1 ······· Corner girder 2 ········ Intermediate girder 3 ········ · · · Central girder 4, 4a · · · Horizontal ribs 5 and 5a · · · Vertical ribs 8 · · · · · · · adjacent ribs

Claims (4)

[Claims] 1. A synthetic resin pallet having a spar for connecting opposing deck boards, wherein at least a rib closest to the spar among a plurality of ribs formed substantially parallel to a side wall of the spar. A pallet made of synthetic resin, wherein an interval between the rib and a side wall of the spar is smaller than an interval between other ribs formed substantially parallel to the side wall. 2. The synthetic resin pallet according to claim 1, wherein the width of at least the rib closest to the spar is wider than the width of the other ribs. 3. The synthetic resin according to claim 1, wherein a rib closest to the spar and a side wall of the spar are connected by an adjacent rib substantially perpendicular to the side wall of the spar. Pallets. 4. The width of adjacent ribs and the width of a portion of the rib located from the side wall of the spar to the rib closest to the spar are
The synthetic resin pallet according to claim 3, wherein each of the ribs has a width larger than that of the other ribs.