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Title:
COLUMNAR BODY, METHOD FOR MANUFACTURING THE SAME AND MOLD FOR MANUFACTURING COLUMNAR BODY
Document Type and Number:
Japanese Patent JP2002127161
Kind Code:
A
Abstract:

To solve such a problem that an injection part is large and material loss is large in a conventional mold for manufacturing a columnar body and, since an inlet part is large, the cutting or cutting processing labor for removing this part from a molded article becomes large and, since the cut surface thereof appears as the surface of the molded article, shape arranging processing is not simple.

The mold 1 has a columnar cavity 6 and the center axis 6e of the columnar cavity 6 is inclined with respect to a vertical axis. The injection hole 8 piercing the external space from the columnar cavity 6 is formed in the vicinity of the topmost part of the columnar cavity 6. The air escape hole piercing the external space from the columnar cavity 6 is formed near the injection hole 8.


Inventors:
TANAKA YOSHIHARU
TAKAHAMA KUNIMASA
NAKAZAWA TSUNEO
Application Number:
JP2000318729A
Publication Date:
May 08, 2002
Filing Date:
October 19, 2000
Export Citation:
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Assignee:
BANDO CHEMICAL IND
International Classes:
B29C39/26; B29C39/10; B29C39/24; (IPC1-7): B29C39/24; B29C39/10; B29C39/26
Attorney, Agent or Firm:
Yoshihiro Tsunoda (2 outside)