INSERT PART STUCK CYLINDRICAL ARTICLE, ITS FORMING METHOD, AND ITS FORMING DEVICE

Title:

INSERT PART STUCK CYLINDRICAL ARTICLE, ITS FORMING METHOD, AND ITS FORMING DEVICE

Document Type and Number:

WIPO Patent Application WO/2000/051802

Kind Code:

A1

Abstract:

A forming method and a forming device capable of preventing molten resin to be injected from being circulated into a space between the surface of an insert part and an outer mold surface or the insert part from being pushed downward when a synthetic resin formed product formed by sticking a sheet-like insert part, such as a label, printed on film or the others around the outer periphery of a thin wall cylindrical formed product main body is injection-molded by an insert molding method, wherein an insert part (32) such as a label is installed cylindrically onto the outer mold inner surface of a cavity (7) formed with an outer mold (11) and a core (6) to assure tight holding, and molten resin is injected from a plurality of injection gate opening parts (9a) provided in the core to a position which is located on the inner side of the end part of the insert part and clear of an aligning end face (32a) of the label to fill the molten resin into the cavity in such a manner that the molten resin pushes the insert part against the outer mold surface and to form the molten resin and the insert part integrally with each other so as to form a labeled cylindrical object (10).

Inventors:

KIMURA HIDEYUKI (JP)
NOMOTO TSUGIO (JP)

Application Number:

PCT/JP1999/000986

Publication Date:

September 08, 2000

Filing Date:

March 01, 1999

Export Citation:

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Assignee:

YOSHINO KOGYOSHO CO LTD (JP)
KIMURA HIDEYUKI (JP)
NOMOTO TSUGIO (JP)

International Classes:

B29C45/14; B29C45/27; (IPC1-7): B29C45/14; B29C45/26

Foreign References:

JPH1158445A	1999-03-02
JPH06246777A	1994-09-06
JP2579741Y2	1998-08-27

Other References: