JPS60158043A - Pallet made of reinforced thermoplastic resin - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a pallet used for cargo handling by a forklift.

Conventionally, a pallet used when transporting cargo by a forklift or the like is, for example, a pallet 41 shown in FIG.
A structure in which flat, elongated wooden panels 46 to 46 are arranged on both sides of wooden support members 42 to 42 arranged in parallel as shown in the figure, and fixed with nails 47 to 47 (see Fig. 12). belongs to. However, this wooden pallet 41 is heavy, and increasing the material strength increases the weight in proportion to the strength, and since the material is water absorbing, it is easily corroded by water absorption, and in a water absorbing state, the weight of the wooden pallet 41 is 111 mft.
increased, making it difficult to handle.

Further, due to repeated water absorption and drying, the nails 47 to 47 of the pallet 41 become loose, resulting in the pallet 41 being deformed or damaged when used on a forklift.

On the other hand, metal pallets (not shown) are also used in some cases, but they have the drawbacks that the weights are very large and difficult to handle, that they are difficult to repair, and that the manufacturing cost is very high.

The purpose of the present invention is to solve the various drawbacks of conventional pallets for cargo handling, and the purpose of the present invention is to create a pallet that does not suffer from corrosion due to water absorption, is not easily deformed, can be made small in weight, has the required strength, and is easy to manufacture. The aim is to provide pallets].

Another object of the present invention is to provide a pallet made of reinforced thermoplastic synthetic resin, which is easy to repair, and which is useful for reuse as a recycled resource. It is about providing.

The present invention uses a support member and panel material made of reinforced thermoplastic synthetic resin in a predetermined-shaped pallet formed by combining a support member and an elongated panel material, and the overlapping portions of the two are fitted together. The feature is that it is fixed by heat welding.

Next, one embodiment of the present invention will be described based on FIGS. 1 to 10. Figure 1 shows a pallet 1 used in a forklift (not shown), with four support members 2 to 2 and 1.
Two panel materials 6 to 6 are combined, and two wooden reinforcing members 8
．． It is formed by arranging 8. That is, the supporting member 2 is an elongated molded body having an opening shape in cross section, and each side portion 4A, 4B to which the panel members 6 to 6 are attached is attached to the panel member 6.
Fitting convex portions 5A to 5A and 5B to 5B that can fit 6 to 6
is being formed. In addition, the fitting convex portions 5A to 5A, and 5
When the openings 7 to 7 of the panel materials 6 to 6 are fitted, B to 5B are arranged so that there is no gap between the panel materials 6 to 6 (they are arranged at the intervals to be assembled, and the support members 20 are arranged at the intervals on both sides, that is, the support The width of the central surface 3 of the members 2 to 2 is set to a predetermined width into which a fork of a forklift (not shown) can be inserted and pulled out.

The panel members 6 to 6 are elongated, have a substantially C-shaped cross section at right angles to the longitudinal direction, and have an opening 7 in the longitudinal direction, and each panel member 6 to 6 has a predetermined constant length. The reinforcing members 8, 8 are elongated with an opening shape in cross section, and each end portion 6A-6A and 6B-6 of the assembled panel materials 6-6
It is formed so that it can be attached to B. Support members 2-2. The panel materials 6 to 6 and the reinforcing members 8.8 are made of reinforced thermoplastic synthetic resin made by mixing a fibrous reinforcing material into the thermoplastic synthetic resin, in this example, glass fit III cut into a length of about 1α from polypropylene. It is made of reinforced thermoplastic synthetic resin mixed with 10%.

Thus, each of the fitting convex portions 5A to 5A and 5B to 5B of the four support members 2 to 2 arranged horizontally at a predetermined interval has each panel member 6 to 6 groups arranged vertically, 6 to 6 The detailed openings 7 to 7. Fit the openings 7 to 7 in sequence, and place 6 to 6 groups of 6 wood panel materials on one side of the support members 2 to 2, and 6 to 6 groups of 6 panel materials on the other side. After that, a gun part (not shown) of a high-frequency heater is brought into contact with each fitting part, and the fitting convex parts 5A to 5A of the support members 2 to 2 and Panel materials 6 to 6 groups and 6 to 6 groups are welded and fixed to 5B to 5B. Note that it may also be fixed by welding to adjacent portions of the panel materials 6, 6.

Next, the ends 6A to 6A, 6A to 6A, and 6B to each of the panel members 6 to 6 groups and the 6 to 6 groups fixed to the support members 2 to 2
A reinforcing member 8.8 is attached to each of the 6B and 6B to 6B sides,
Then, the gun part of the high-frequency heater is applied to the appropriate place of the reinforcing member 8.8, and the reinforcing member 8.8 is attached to the panel materials 6 to 6, 6.
~6 ends 6A~6A, 6B~6B and reinforcing members 8.8
Weld and fix to.

In this way, a predetermined rectangular pallet 1 is formed. This pallet 1 is used for cargo handling and transportation by a forklift, for example, like the conventional pallet shown in FIG. 11.

Note that the support member 2. The panel material 6 and the reinforcing member 8
The support member 12 shown in the figure, the panel material 16 shown in FIG. 7, and the reinforcing member 18 shown in FIG. By forming the portions 13A, 16A, and 18A, the gun portion can be inserted through the through-hole portion during heat welding to facilitate the heat welding operation, and the through-hole portions 13A, 16△, and 18A can be formed as they are or as needed. Accordingly, it is coated with a piece of reinforced thermoplastic synthetic resin (not shown). In Fig. 6, 13 is the center surface, 15A and 15B are fitting convex parts, and in Fig. 7, 1
7 is an opening.

Further, the shape of the fitting convex portion of the support member and the opening of the panel material is such that, as shown in FIG. At the center of the back surface of the panel material 26 corresponding to the frontage 26A, there is a recess 25 on the top surface 25B of the fitting convex portion 25A of the support member 22.
A protrusion 26B is formed to fit into the support member 22 and panel material 26.
Also, it is possible to improve the support of the load applied to the panel material 26.

In addition, in the pallet 1 of the above-described embodiment, reinforcing members 8, 8 are attached to the ends 6A, 6B of the panel material 6 assembled to the support member 2 to protect and reinforce the end portions of the panel material 6. Member 8 can be omitted. In the pallet 1 of the embodiment described above, the panel materials 6 to 6 were attached to the support members 2 to 2 in contact with each other, but as in the pallet 31 shown in FIG. It is also possible to provide a gap S-8 and fix it to the support member 32 by heat welding. In addition, in FIG. 10, 35A, 35B
3 is a fitting convex portion, and 37 is a frontage portion of the panel material 6.

As explained above, the present invention provides a plurality of panel members that are elongated, have a substantially C-shaped cross section at right angles to the longitudinal direction, and have an opening in the longitudinal direction, and a panel member that is fitted into the opening of the plurality of panel members. It consists of a plurality of supporting members each having a plurality of mating protrusions that can be fitted together, and each panel material and each supporting member are made of reinforced thermoplastic synthetic resin mixed with a reinforcing material such as glass fiber, Each opening of each panel material arranged vertically is fitted into each fitting convex part of a supporting member arranged horizontally at a predetermined interval, and each fitting part is fixed by heat welding. Because of this structure, the desired objectives of the present invention described above can be achieved. That is, in the present invention, since the panel material and support member made of reinforced thermoplastic synthetic resin are used, the pallet is non-water absorbent and does not suffer from corrosion due to water absorption. Since the fitting portion is fixed by heat welding, it is easy to manufacture at a low cost, and the assembled pallet will not be deformed during use.

In addition, in the present invention, the panel material and the support member are made of reinforced thermoplastic synthetic resin with high strength, so that a pallet with high strength can be made, and the panel material has a substantially opening-shaped cross section, making it easy to form. Moreover, the weight can be reduced without reducing the strength, so it can be lighter than conventional wooden or metal pallets. Since the pallet of the present invention is mainly made of thermoplastic synthetic resin, it can be decomposed by heating and can be easily repaired even when damaged.

[Brief explanation of the drawing]

Figures 1 to 10 show an embodiment of the present invention, in which Figure 1 is a perspective view of a pallet made of reinforced thermoplastic resin, and Figure 2 is a cross-sectional view taken along line ■-■ in Figure 1. 3 is a perspective view of the supporting member, FIG. 4 is a perspective view of the panel material, FIG. 5 is a perspective view of the reinforcing member, and FIG. 6 is a perspective view showing the main parts of the supporting member of another WJ construction. Fig. 7 is a perspective view showing the main part of the separate groove structure of the panel material, Fig. 8 is a perspective view showing the main part of the corner structure of the reinforcing member, and Fig. 9 is a perspective view showing the main part of the angular structure of the panel material and supporting member. FIG. 10 is a structural explanatory diagram showing an example, and FIG. 10 is a structural explanatory diagram showing a cross section of the corner structure of the pallet. 11 and 12 show a conventional pallet. FIG. 11 is a perspective view of the conventional pallet, and FIG. 12 is an explanatory diagram of the nailing state of the conventional pallet. 1.31...Pallet 2, 12, 22.32...Supporting member 5^, 5B, 15^, 158.25A, 35^, 35B
...Fitting convex portion 6, 16.26...Panel material 7, 17.37...Opening Applicant Shin France Co., Ltd. Patent attorney Oka 1) Hidehiko Figure 1 Figure 82 Figure 4 B

Claims (1)

[Claims] A plurality of panel members each having an elongated shape and having a substantially C-shaped cross section at right angles to the longitudinal direction and having an opening in the longitudinal direction, and a plurality of fitting convex portions that can be fitted into the openings of the plurality of panel members. each panel material and each support member are made of reinforced thermoplastic synthetic resin mixed with a reinforcing material such as glass fiber, and the support members are arranged horizontally at a predetermined interval. Reinforced thermoplastic, characterized in that each opening of each vertically arranged panel material is fitted to each fitting convex part of the panel, assembled into a rectangular shape, and each fitting part is fixed by heat welding. A resin pallet.