METHOD OF PROCESSING SYNTHETIC RESIN TUBULAR BODY AND TUBE CONTAINER

Title:

METHOD OF PROCESSING SYNTHETIC RESIN TUBULAR BODY AND TUBE CONTAINER

Document Type and Number:

WIPO Patent Application WO/2005/000561

Kind Code:

A1

Abstract:

A processing method for easily forming aesthetically excellent ridge and recess portions, etc. in a large region of a synthetic resin tubular body by changing the shape of part of a wall of the tubular body. The method enables to provide a container having decorativeness, appearance, and functionality not having been available. A bottomed tubular mandrel that has a die portion on the outer surface of which at least one of recess-like, ridge-like, and recess/ridge-like shapes partly is formed and has fine through-holes provided in it is inserted into a synthetic resin tubular body while the mandrel is made to be in contact internally with the tubular body. Portion near that portion of the tubular body that faces the die portion is softened by heating. Then, the softened portion is formed to have at least one of the recess portion, ridge portion, and recess/ridge portion on the tubular body. Here, the forming is performed as made by vacuum forming by means of air discharge through an opening end of the mandrel and the fine through-holes.

Inventors:

SHIMADA SHINJI (JP)
OTA ATSUSHI (JP)
IMAIZUMI YASUYUKI (JP)

Application Number:

PCT/JP2004/009129

Publication Date:

January 06, 2005

Filing Date:

June 29, 2004

Export Citation:

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Assignee:

YOSHINO KOGYOSHO CO LTD (JP)
SHIMADA SHINJI (JP)
OTA ATSUSHI (JP)
IMAIZUMI YASUYUKI (JP)

International Classes:

B29C51/08; B65D35/02; (IPC1-7): B29C51/10; B29C51/36; B65D35/02

Foreign References:

JPS5577535A	1980-06-11
JPS59199235A	1984-11-12
JP2001018287A	2001-01-23
JP2002011729A	2002-01-15
JPH0872905A	1996-03-19
JPS618544U	1986-01-18

Other References: