INJECTION MOLDING DIE, RESIN MOLDED PRODUCT, AND METHOD FOR PRODUCING RESIN MOLDED PRODUCT

WIPO Patent Application WO/2012/128349

A1

Provided is an injection molding die having a size appropriate for a molded product, having a simple structure, and wherein even if the molded product has an undercut portion, a multiple number of molded products can be obtained. Also provided are a resin molded product produced by the die, and a method for producing a resin molded product using the die. An injection molding die (1) comprises a stationary die, a movable die (3), and a slide core (4), and is used for obtaining a multiple number of resin molded products having hollow portions (bearing retainer, etc.), wherein there is one parting line between the stationary die and the movable die (3), a molding cavity of the injection molding die is divided in series in the movable direction of the movable die by the slide core (4) to form a plurality of cavities, a core pin (5) for forming the hollow portion of the molded product is provided, and a submarine gate (6) for filling the resin in each molding cavity is formed on the core pin (5).

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ABE HIROHISA
FUKUZAWA SATORU
KATAYAMA AKIHIKO
ABE KATSUFUMI

PCT/JP2012/057486

September 27, 2012

March 23, 2012

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NTN TOYO BEARING CO LTD (JP)
ABE HIROHISA
FUKUZAWA SATORU
KATAYAMA AKIHIKO
ABE KATSUFUMI

B29C45/33; B29C45/27

JPS50150762A	1975-12-03
JPH041716U	1992-01-08
JP2007198583A	2007-08-09
JPH10318265A	1998-12-02
JP2007125828A	2007-05-24
JP2001304270A	2001-10-31

WAKI, Misao et al. (JP)
Wake 操 (JP)

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