Wooden container and a process for manufacturing thereof

Inactive Publication Date: 2007-09-27
SHINRIN SHIGEN RIYO SOKUSHIN KENKYUSHO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0035]Therefore, the probability of generating cracks at the peripheral edge becomes very low, and wooden containers having the surrounding edge are manufactured under good yields conditions.
[0036]In addition, the second forming step not only forms the surrounding edge, but clamps again the bottom and peripheral walls of the intermediate product. The bottom and peripheral walls are strongly clamped so that the plywood is stiffened firmly and im

Problems solved by technology

On the contrary, when timber obtained from a thinner tree is sliced, many inferior sheets having spoile

Method used

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  • Wooden container and a process for manufacturing thereof
  • Wooden container and a process for manufacturing thereof
  • Wooden container and a process for manufacturing thereof

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Example

[0051]Embodiments of the present invention are described in detail, referring to drawings.

An Embodiment of the Wooden Container

[0052]In FIG. 1, a wooden container 1 is illustrated as a tray, for example, having a bottom wall 2 and a peripheral wall 3, the tray may be shaped in either shallow or deep configuration. The tray has a surrounding edge 4 extending along the upper opening edge of peripheral wall 3 and also extending downward as circular in cross section. A bulge portion 5 may be formed by slightly lifting the center of bottom wall 2 so that moisture of wet food and like packed in the container may stagnate below the circumference of the bulge portion 5.

[0053]The wooden container 1 is formed by a plywood sheet 6 comprising an inferior sheet 6a having spoiled portions such as knot or crack and a superior sheet 6b having no such spoiled portion. The inferior sheet 6a and the superior sheet 6b are chosen from a large number of wooden sheets obtained by slicing a wooden piece. T...

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PUM

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Abstract

A wooden container formed by a wooden sheet is provided. The wooden container (1) is formed by a ply wood sheet comprising two wooden sheets chosen from a large number of wooden sheets, one being an inferior sheet (6a) including at least one spoiled portion and another one being a superior sheet (6b) including no such spoiled portion. The inferior and superior sheets are laid with each other and glued mutually. The container comprising a bottom wall (2) and a peripheral wall (3) is formed inside with the superior sheet (6b) and outside with the inferior sheet (6a). Adhesion film (9) is formed between contacted surfaces of the sheets by lignin oozed from wood content. Supplementary adhesion may be added if necessary.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a wooden container such as tray and also to a process for manufacturing thereof wherein the container is formed by a plywood sheet comprising an inferior wooden sheet and a superior wooden sheet.BACKGROUND OF THE INVENTION[0002]It is known that a tray-like container for packing and selling food, fresh food such as fishes or vegetables for example, is formed and shaped by a foamed plastic sheet generally. The container is usually in white color, a film printed with a wood-grain pattern may be laminated on the plastic sheet in order to create a high grade appearance.[0003]Since the plastic container has a problem of waste treatment, it is desirable to spread wooden containers widely as possible which can be incinerated. In addition, wooden containers are excellent in hygroscopicity etc., they fit packing wet food. For this reason, a wooden container formed by a wooden thin plate is already proposed in prior art.[0004]A woode...

Claims

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Application Information

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IPC IPC(8): B65D21/02
CPCB65D1/34A47G19/00B27M3/24B65D1/42
Inventor KITAJIMA, SHIGETO
Owner SHINRIN SHIGEN RIYO SOKUSHIN KENKYUSHO
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