Title:
MOLD FOR DISC MOLDING
Document Type and Number:
Japanese Patent JP3426516
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve appearance of a molded article.
SOLUTION: A fixed side mirror plate 14, a movable side mirror plate 23 being moved back and forth to the fixed side mirror plate 14 with mold closing, mold clamping and mold opening and forming a cavity space 14 between it and the fixed side mirror plate 14 under mold clamping condition, a cavity ring 43 fitted on either one of the fixed side mirror plate 14 and the movable side mirror plate 23 and forming the outer peripheral face of a molded article and a collar 51 fitted on a plurality of positions in the circumferential direction of another one of the fixed side mirror plate 14 and the movable side mirror plate 23 and being brought into contact with the cavity ring 43 under the mold clamping condition, are provided. As the collar 51 is brought into contact with the cavity ring 43 under the mold clamping condition, it is possible to decrease the contact area.
Inventors:
Yuji Shibuya
Yuichi Inada
Yuichi Inada
Application Number:
JP31071198A
Publication Date:
July 14, 2003
Filing Date:
October 30, 1998
Export Citation:
Assignee:
Seiko Giken Co., Ltd.
Sumitomo Heavy Industries Ltd.
Sumitomo Heavy Industries Ltd.
International Classes:
G11B5/84; B29C33/30; B29C45/26; G11B7/26; B29L17/00; (IPC1-7): B29C33/30; B29C45/26; G11B5/84; G11B7/26
Domestic Patent References:
| JP8300421A | ||||
| JP8132483A |
Attorney, Agent or Firm:
Kawai Makoto (1 person outside)
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