Title:
成形型及び成形方法
Document Type and Number:
Japanese Patent JP5537154
Kind Code:
B2
Abstract:
A mold 10 includes a gate 27 communicating with the entire perimeter of a cavity 28 serving as a space configured to form a molded article 60. A self-curable molding material with flowability is fed into the perimeter of the cavity 28 through the gate 27; hence, the mold 10 has a small number of dead ends compared with the case where, for example, the molding material is fed into the cavity 28 through a part of the cavity 28, preventing the formation of bubbles left in the cavity 28. The arrangement of a gate 27 and a bent 35 each making an acute angle results in the spontaneous separation of the molded article in the cavity 28 from solidified material portions in the gate 27 and the vent 35 due to shrinkage on curing.
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Inventors:
Gensho Ohashi
Masakatsu Inoue
Ishin Shunichi
Keiichiro Watanabe
Kunihiko Yoshioka
Matsumoto Manaki
Masakatsu Inoue
Ishin Shunichi
Keiichiro Watanabe
Kunihiko Yoshioka
Matsumoto Manaki
Application Number:
JP2009536051A
Publication Date:
July 02, 2014
Filing Date:
September 30, 2008
Export Citation:
Assignee:
Nippon Insulator Co., Ltd.
International Classes:
B29C45/27; B28B7/24; B28B13/02; B29C45/00; B29C45/32; B29C45/34
Domestic Patent References:
| JPS61185426A | 1986-08-19 | |||
| JPS644617U | 1989-01-12 | |||
| JPH0339218A | 1991-02-20 | |||
| JP2003098852A | 2003-04-04 | |||
| JPH0416303A | 1992-01-21 | |||
| JPH04298316A | 1992-10-22 | |||
| JPH07290514A | 1995-11-07 | |||
| JPH04135820A | 1992-05-11 | |||
| JPS61185426A | 1986-08-19 | |||
| JPS644617U | 1989-01-12 | |||
| JPH0339218A | 1991-02-20 | |||
| JP2003098852A | 2003-04-04 |
Attorney, Agent or Firm:
Aitec International Patent Office