JP2001018969A - Synthetic resin pallet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate an inserting work of a hand fork lift into a fork insertion hole, heighten a strength of an end connecting member, prevent the end connecting member from being damaged, and further improve durability of a synthetic resin pallet. SOLUTION: This synthetic resin pallet P is constructed such that a slant surface of an outer slant segment 6a of an end connecting member 6 constituting a lower deck 4 is formed to be more gradually than a slant surface of an inner slant segment 6c, and reinforcing partition walls 1d, 2d acting as reinforcing segments are formed within the beams 1, 2 positioned at the strongest portion of the end connecting members.

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 hole through which a hand forklift can be taken in and out.

[0002]

2. Description of the Related Art Conventionally, an intermediate girder having a substantially rectangular planer shape and a pair of end girders having a substantially rectangular planer shape arranged on both sides of the intermediate girder are used to connect an upper deck and a lower deck. A so-called two-way synthetic resin pallet or a pair of corner girders arranged at the four corners of the upper and lower decks, in which a pair of fork insertion holes are formed between the intermediate girder and the pair of end girders.
A so-called 4-sided synthetic resin pallet having an intermediate girder arranged between the corner girders and a central girder arranged at the center of the upper and lower decks and having fork insertion holes formed between the girders. Openings are formed in the lower deck of these two-way synthetic resin pallets or four-way synthetic resin pallets so that the wheels of the hand forklift can contact the ground or floor. Along with the lower deck,
A connecting member for connecting each girder is formed, and the wheel of the hand forklift inserted into the fork insertion hole,
It is configured to get over this connecting member.

[0003]

In the above-mentioned conventional connecting member, the whole thickness is thick or the slope of the inclined portion is steep. Therefore, the wheel of the hand forklift is passed over the connecting member and the fork is inserted. The work of inserting into the hole was difficult.

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

[0005]

According to the present invention, in order to achieve the above-mentioned object, an inclined surface of an outer inclined portion of an end connecting member constituting a lower deck is formed more gently than an inclined surface of an inner inclined portion. In addition, a reinforcing part is formed in a girder located at the strongest part of the end connecting member.

[0006]

Embodiments of the present invention will be described below, but the present invention is not limited to these embodiments unless it departs from the gist of the present invention.

FIG. 1 shows, by way of example, an intermediate girder 1 having a substantially rectangular planar shape and an end girder 2 having a substantially rectangular planar shape and arranged with the intermediate girder 1 interposed therebetween. A so-called two-way synthetic resin pallet P in which a pair of fork insertion holes 5 are formed between an intermediate girder 1 connecting the upper deck 3 and the lower deck 4 and a pair of end girder 2 is provided. It is shown.

As shown in FIG. 1 and FIG. 2 which is a vertical sectional view taken along the line II of FIG. 1, the intermediate spar 1 and the end spar 2 They are connected by a connecting member 6 and an internal connecting member 7. End connecting member 6
Forms an end opening 5a of the fork insertion hole 5 together with the intermediate girder 1, the end girder 2 and the upper deck 3, and the inner connecting member 7 includes the intermediate girder 1, the end girder 2 and the upper part. The inner opening 5b of the fork insertion hole 5 together with the deck 3
Is formed. An opening 8 is formed in the lower deck 4 so that the wheel of the hand forklift comes into contact with the ground or the floor.

As shown in FIG. 3, the end connecting member 6 has an outer inclined portion 6a which extends upward from the entrance of the fork insertion hole 5 in the fork insertion direction, and is flush with the lower surface of the lower deck 4. 6b 'having a flat lower surface, and a central portion 6b composed of a wheel mounting rib 6b "extending vertically and horizontally standing upright on the upper surface of the plate-shaped portion 6b', and heading downward along the fork insertion direction. Reinforcing ribs 6d running vertically and horizontally are formed on the back surfaces of the outer inclined portion 6a and the inner inclined portion 6c, respectively. Angle of inclination θ
1 is formed smaller than the inclination angle θ2 that the inclined surface of the inner inclined portion 6c forms with the horizontal plane. That is, the outer inclined portion 6
The inclined surface of “a” is formed more gently than the inclined surface of the inner inclined portion 6 c, so that the wheel of the hand forklift can easily get over the end connecting member 6. Reference numeral 6e denotes a drain hole for draining rainwater, washing water, etc., which has entered a concave portion formed by the plate-shaped portion 6b 'and the wheel mounting rib 6b ", downward.

As described above, the inclined surface of the outer inclined portion 6a is
When the hand forklift is inserted into the fork insertion hole 5, the wheel of the hand forklift is easily climbed along the inclined surface of the outer inclined portion 6a because the inner inclined portion 6c is formed more gently than the inclined surface. After that, it is possible to descend along the inner inclined portion 6c having a large inclination and to cross the internal connecting member 7 with the momentum.
Insertion work into the device becomes easy.

In the embodiment shown in FIG. 4, the above-mentioned central portion 6b is connected by a horizontal flat portion 6f connecting the highest position of the outer inclined portion 6a and the inner inclined portion 6c. Reinforcing ribs 6d running vertically and horizontally on the back of the flat part 6f
Are formed. Also in this embodiment, the inclination angle θ1 of the outer inclined portion 6a is equal to the inclination angle θ2 of the inner inclined portion 6c.
The inclined surface of the outer inclined portion 6a is formed smaller than the inclined surface of the inner inclined portion 6c, so that the wheel of the hand forklift can easily get over the end connecting member 6. .

In the embodiment shown in FIG. 5, the above-mentioned flat portion 6f is omitted, and the end connecting member 6 is replaced with the outer inclined portion 6a.
And an inner inclined portion 6c, and a top portion 6g is formed at the intersection of the outer inclined portion 6a and the inner inclined portion 6c. Also in this embodiment, the inclination angle θ1 of the outer inclined portion 6a is equal to the inclination angle θ2 of the inner inclined portion 6c.
The inclined surface of the outer inclined portion 6a is formed smaller than the inclined surface of the inner inclined portion 6c, so that the wheel of the hand forklift can easily get over the end connecting member 6. .

The embodiment shown in FIG.
However, the inclination angle of the outer inclined portion 6a and the inner inclined portion 6c in a predetermined area is substantially the same with the top 6g interposed therebetween. The inclination angle θ3 of the end inclined surface 6h on the end opening portion 5a side of the fork insertion hole 5 of the portion 6a is formed more gently than the inclination angle θ4 of the opening inclined surface 6i on the opening 8 side of the inner inclined portion 6c. Is what it is. As described above, by forming the inclination angle θ3 of a part of the outer inclined part 6a to be gentler than the inclination angle θ4 of the part of the inner inclined part 6c, the wheel of the hand forklift can move to the end part. It is also possible to configure so that the connecting member 6 can be easily overcome.

As shown in FIG. 2, the internal connecting member 7 has inclined portions 7b and 7c formed on both sides of a central portion 7a similar to the central portion 6b and the flat portion 6f described above. However, the inclination angle at which the inclined surface of the inclined portion 7b forms a horizontal plane and the inclination angle at which the inclined surface of the inclined portion 7c forms a horizontal plane
They are formed at almost the same angle.

FIGS. 7 and 8 show a synthetic resin pallet P having the end connecting members 6 shown in FIG.
A horizontal sectional view along the line II-II and a partially enlarged horizontal sectional view thereof are shown.

A rib 1a and a partition wall 1b for partitioning the inside of the intermediate girder 1 are formed in the intermediate girder 1 at appropriate intervals in a direction perpendicular to the fork insertion hole 5. In the girders at both ends of the intermediate girder 1 located near the opening of the hole 5, a partition wall 1 c is formed along the direction of the fork insertion hole 5. In addition to such a partition wall 1c, or instead of the partition wall 1c, a partition wall extending at an angle with respect to the direction of the fork insertion hole 5 toward the corners of both ends of the intermediate girder 1 is appropriately provided. , Can also be formed. Further, a partition wall extending along the direction of the fork insertion hole 5 may be formed so as to intersect with the partition wall 1b.

Similarly, a rib 2a and a partition wall 2b for partitioning the inside of the end spar 2 are formed in the end spar 2 at appropriate intervals in a direction perpendicular to the fork insertion hole 5. The fork insertion hole 5 is provided in the both ends of the end girder 2 located near the opening of the fork insertion hole 5.
An appropriate number of partition walls 2c are formed along the direction. As in the case of the intermediate girder 1 described above, in addition to or instead of such a partition wall 2c, the fork insertion holes 5 are formed toward the corners at both ends of the end girder 2.
A partition wall extending inclining with respect to the direction can be formed as appropriate. Further, a partition wall extending along the direction of the fork insertion hole 5 may be formed so as to intersect with the partition wall 2b.

By the way, in order to make it easy for the wheel of the hand forklift to get over the end connecting member 6, the inclined surface of the outer inclined portion 6a of the end connecting member 6 is changed to the inclined surface of the inner inclined portion 6c as described above. Formed more slowly,
As described above, when the inclination angle θ1 of the outer inclined portion 6a is reduced, the cross-sectional area of the end connecting member 6 along the direction of the fork insertion hole 5 is reduced as compared with the case where the inclination angle θ1 is large. The strength of the member 6 will be reduced. Therefore, in the present embodiment, of the wheel mounting ribs 6b ″ of the end connecting member 6, the wheel mounting ribs extending in the direction perpendicular to the direction of the fork insertion hole 5 and located at the center. 6b ″, in the intermediate girder 1 and the end girder 2, as reinforcing parts, respectively, reinforcing partition walls 1 d
And a reinforcing partition wall 2d. The reinforcing partition walls 1d and 2d as such reinforcing portions are provided on the intermediate girder 1
Inside and in the end spar 2 and at the central portion 6 of the end connecting member 6.
One portion or a plurality of portions may be formed in the portion where b is located in a direction perpendicular to the direction of the fork insertion hole 5. Such a reinforcing partition wall 1d and a reinforcing partition wall 2d can be formed in a portion where the outer inclined portion 6a and the inner inclined portion 6c of the end connecting member 6 are located, but the outer inclined portion 6a and the inner inclined portion 6c can be formed. Since the portion 6c is lower in strength than the central portion 6b, it is effective to form the portion 6c in a portion where the central portion 6b is located in order to improve the strength of the end connecting member 6.

As shown in FIG. 4, when a flat portion 6f is formed in the end connecting member 6, since this portion is the strongest in strength, the intermediate girder where the flat portion 6f is located is provided. 1
A reinforcing partition wall 1d and a reinforcing partition wall 2d are formed in the inner and end girders 2 in a direction perpendicular to the direction of the fork insertion hole 5, respectively. Also, as shown in FIG. 5, when the top 6g is formed in the end connecting member 6, this portion is the strongest in strength, so that the inside of the intermediate girder 1 where the top 6g is located and In the end beam 2, a reinforcing partition wall 1d and a reinforcing partition wall 2d are formed in a direction perpendicular to the direction of the fork insertion hole 5, respectively.

As described above, in the intermediate girder 1 and the end girder 2 located at the strongest parts of the end connecting member 6, respectively, at right angles to the direction of the fork insertion hole 5, By forming the reinforcing partition wall 1d and the reinforcing partition wall 2d, the strength of the end connecting member 6 can be increased, so that the end connecting member 6 is not damaged, and the synthetic resin pallet is used. The durability of P is improved.
The reinforcing partition walls 1d and 2d as reinforcing portions are not limited to those completely partitioning the inside of the intermediate girder 1 and the end girder 2, and the reinforcing portions are formed as reinforcing ribs such as the ribs 1a. You can also.

Although the embodiment of the present invention has been described by taking a two-way synthetic resin pallet as an example, it is needless to say that the present invention can also be applied to a four-way synthetic resin pallet.
In the case of a pallet made of a synthetic resin, a corner spar arranged at the four corners of the upper and lower decks, and an end connecting member constituting a lower deck connecting the intermediate spar arranged between the corner spar,
The configuration of the present invention described above will be applied.

[0022]

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

The inclined surface of the outer inclined portion of the end connecting member constituting the lower deck is formed more gently than the inclined surface of the inner inclined portion, and the spar located at the strongest portion of the end connecting member in terms of strength. Since the reinforcing portion is formed inside the forklift, the work of inserting the hand forklift into the fork insertion hole can be facilitated, and the strength of the end connecting member can be increased, so that the end connecting member may be damaged. And the durability of the synthetic resin pallet is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a synthetic resin pallet as an example of the present invention.

FIG. 2 is a vertical sectional view taken along line II of FIG. 1;

FIG. 3 is a partially enlarged vertical sectional view of the vicinity of an opening of a fork insertion hole in the vertical cross section shown in FIG. 2;

FIG. 4 is a partially enlarged vertical sectional view similar to FIG. 3, showing another embodiment of the present invention.

FIG. 5 is a partially enlarged vertical sectional view similar to FIG. 3, showing still another embodiment of the present invention.

FIG. 6 is a view showing still another embodiment of the present invention;
FIG. 4 is a partially enlarged vertical sectional view similar to FIG.

FIG. 7 is a horizontal sectional view taken along the line II-II in FIG. 1;

FIG. 8 is a partially enlarged horizontal cross-sectional view of the horizontal cross-section shown in FIG. 7 near a corner of a synthetic resin pallet;

[Explanation of symbols]

 P ······ Palette made of synthetic resin 1d, 2d ···· Reinforcing part (reinforcing partition wall) 5 ······· Fork insertion hole 6 ······· End Part connecting member 7 Internal connecting member

Claims (1)

[Claims] An inclined surface of an outer inclined portion of an end connecting member constituting a lower deck is formed more gently than an inclined surface of an inner inclined portion, and is located at a portion where strength of the end connecting member is strongest. A pallet made of synthetic resin, characterized in that a reinforcing portion is formed in a girder.