JP3157406U - Horizontal paper tube girder cardboard pallet - Google Patents

Abstract

The present invention provides a horizontal paper tube girder cardboard pallet having a large bonding area between cardboard and girders, a simple bonding method, and being strong and inexpensive. A thick and strong printing paper tube is reused to form a flat surface on the curved surface of the paper tube and to be placed horizontally with respect to the pallet surface. [Selection] Figure 1

Description

The present invention belongs to the field of cardboard pallets

Up to now, some paperboards have been used as cardboard pallet girders, but many of them have been used as cylindrical girders by cutting the paper tube. Since the cylindrical paper tube is joined to the corrugated cardboard surface, the joining method is difficult, and since the joining area is small, a member or the like for supplementing it is required, so many problems have been observed.

The bonding area between cardboard and girders should be as large as possible and the bonding method should be simple. There is a need for a girder that is strong and inexpensive.

Conditions for solving the problem

In order to solve these problems, first, the thick industrial waste paper tube is reused and used as a girder. Further, in order to increase the bonding area between the corrugated cardboard and the paper tube, a flat surface is formed by applying mechanical pressure to the upper and lower surfaces of the paper tube, and the paper tube is installed horizontally so that the corrugated cardboard and the paper tube The bonding area is increased and bonded. As a result, we succeeded in making a strong and inexpensive pallet.

Effect of device

Reusing a paper tube for printing, which has been disposed of as industrial waste, as a girder for a corrugated cardboard pallet greatly contributes to environmental problems.

The standard paper tube for printing has an inner diameter of 75 mm, an outer diameter of 105 mm, and a wall thickness of 15 mm, but the length varies from 800 mm to 1800 mm. By applying mechanical pressure to these paper tubes, a flat surface having a width of about 80 mm is formed. The height of the girders after formation is desirably about 90 mm.
A flat pallet with a flat surface is cut into a length of about 200 to 300 mm according to the size of the pallet, and the required number is placed and bonded horizontally between the top and bottom plates of the cardboard. To complete.

FIG. 1 is an overall view of a four-way cardboard pallet using a paper tube with a flat surface. The paper tube (1a) is used after being cut to about 200 to 300 mm in accordance with the size of the pallet. Usually, 9 to 12 of these are placed between the top board (1b) and the bottom board (1c) of the cardboard and firmly bonded.

FIG. 2 is a diagram of a paper tube with a flat surface which is the basis of the present invention. The thickness of the paper tube is about 15 mm, the outer diameter is 105 mm, and the length is usually about 1 meter. This is pressed by a machine to form a flat surface having a width of about 80 mm. Each 200 mm long paper tube has a pressure resistance of about 500 kg. A pallet using nine of these can produce a pallet with a pressure resistance of about 4500 kg (planar weight).

FIG. 3 is an overall view of a two-way pallet using a long paper tube girder. The paper tube itself is the same as in FIG. 2, and only the length is made according to the depth of the pallet. The number of paper tubes is usually 3 to 4 depending on the weight of the cargo and the number. The cardboard is composed of two top plates (1b) and one bottom plate (1c).

FIG. 4 is an overall view of a long paper tube with a flat surface. The functional aspect is the same as the paper tube of FIG. Each paper tube with a length of 1 meter has a compressive strength of about 2000 kg.

Industrial applicability

A feature of the present invention is that a used paper tube for printing is used as a girder. It is cheap because the so-called industrial waste is reused to make pallets, and it is strong, so it is expected to spread widely in the market.

Complete drawing of 4-way pallet Paper tube girder with flat surface Complete drawing of 2-way pallet Paper tube girder with long flat surface

1 Four-way pallet 1a Flat tube paper girder 1b Top plate 1c Bottom plate 1d Flat surface 2 Two-way pallet

Claims (2)

In the cardboard pallet, the girder is composed of paper tubes, and the paper tubes are processed into flat surfaces at the top and bottom of the curved surface, and are installed in a horizontal state with respect to the cardboard surface of the pallet. Horizontal paper tube girder cardboard pallet characterized by. A paper tube with a flat surface, characterized in that the upper and lower portions of the curved surface portion of the cylindrical paper tube are crushed and processed into a flat surface.

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