Title:
SPRUE STRUCTURE OF INJECTION MOLD
Document Type and Number:
Japanese Patent JP2002283407
Kind Code:
A
Abstract:
To enhance the strength of a runner being a molding material cured in the sprue of an injection mold.
A supply sprue 10 is formed to an upper mold 6 constituting the mold main body part of the injection mold 1 and an upper expanded diameter part 13 is provided to the upper end of the supply sprue 10. The third communication sprue 30 capable of communicating with the supply sprue 10 is formed to the sprue plate 27 coming into close contact with the upper mold 6 through a sheet material 26 and a lower expanded diameter part 33 is provided to the lower end of the third communication sprue 30.
Inventors:
YOSHIDA MASAKADO
NAKANO HIRONOBU
NAKANO HIRONOBU
Application Number:
JP2001087984A
Publication Date:
October 03, 2002
Filing Date:
March 26, 2001
Export Citation:
Assignee:
SUMITOMO WIRING SYSTEMS
International Classes:
B29C45/27; (IPC1-7): B29C45/27
Attorney, Agent or Firm:
Dozo Isono
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