INJECTION MOLDING METHOD OF MOLDED PRODUCT HAVING INSERT MEMBER, AND BACKREST OF PIPE CHAIR

Title:

INJECTION MOLDING METHOD OF MOLDED PRODUCT HAVING INSERT MEMBER, AND BACKREST OF PIPE CHAIR

Document Type and Number:

Japanese Patent JP2014004796

Kind Code:

A

Abstract:

To provide an injection molding method of the backrest of a pipe chair without a projection directly hitting the flank of a human body when sat on a pipe chair.

One or a plurality of temporary fixing members F₁ attached to a cavity forming recess 21 in a state projected in an opening/closing direction of a slide mold M₃ to a movable mold M₂, and an insert member S₁ having temporary fixing through holes 22 into which the temporary fixing members F₁ are inserted, are used. The temporary fixing member F₁ and the temporary fixing through hole 22 are formed so that an engaging part 30 formed in a step shape at the tip of the temporary fixing member F₁ is engaged to a part 24 to be engaged formed in the same step shape inside the temporary fixing through hole 22 by engaging force preventing a position of the insert member from being shifted by injection pressure.

Inventors:

INAGAKI TOSHIICHI
UEHARA CHIKA
GO SHIMEI
CHEN JIN WAN

Application Number:

JP2012143670A

Publication Date:

January 16, 2014

Filing Date:

June 27, 2012

Export Citation:

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Assignee:

AICO TRADING CO LTD

International Classes:

B29C45/14; A47C5/08; B29C33/12; B29L31/44

Domestic Patent References:

JPH03100418U	1991-10-21
JPH02155618A	1990-06-14
JP2005065764A	2005-03-17
JPH0612024U	1994-02-15
JPH0612024U	1994-02-15
JPH03100418U	1991-10-21
JPH02155618A	1990-06-14
JP2005065764A	2005-03-17

Attorney, Agent or Firm:

Tetsuhiro Naito

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