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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING RESIN MOLDED PRODUCT
Document Type and Number:
WIPO Patent Application WO/2020/044529
Kind Code:
A1
Abstract:
The purpose of the present disclosure is to reliably form a desired texture on the inner surface of a hollow resin molded product. The present disclosure is a method for manufacturing a resin molded product in which a resin molded product (drain pipe 10) having a hollow portion (flow path 11) is molded by joining a first divided body 21 and a second divided body 22. The manufacturing method includes a molding step for molding the first divided body and the second divided body by primary injecting a resin material into a space (cavities 210, 220) formed by a first mold 400 and a second mold 500, a moving step for bringing the first divided body and the second divided body closer to each other by the relative movement of the first mold and the second mold, and a joining step of joining the first divided body and the second divided body. A texture forming part for molding a texture on the inner surface of the hollow portion is provided on at least one of the region of the first mold corresponding to the second divided body in the molding step and the region of the second mold corresponding to the first divided body in the molding step.

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JP2009018560THIN MOLDED ARTICLE
Inventors:
MORIMOTO MASANORI
IMAIZUMI MASAHIKO
NAKASHIMA NORIYASU
ASAJI MASAHIRO
ISHII KENJI
YAMAZAKI RYO
Application Number:
PCT/JP2018/032322
Publication Date:
March 05, 2020
Filing Date:
August 31, 2018
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
B29C45/37; B29C33/42; B29C45/16; B29C65/02; B29C69/02; E03C1/284
Foreign References:
JPS5633383U1981-04-01
JP2017013443A2017-01-19
JPH11147266A1999-06-02
JP2001205681A2001-07-31
JP2018035544A2018-03-08
JPH08333784A1996-12-17
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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