Title:
MANUFACTURE OF WEATHER STRIP
Document Type and Number:
Japanese Patent JP3740563
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enable disposition of a holding member in a die molding part without splitting a hollow seal part after die molding, thereby to ensure quality and to attain improvement in the number of manufacturing processes, by extracting a core from the hollow seal part after the die molding part is formed in a state wherein the holding member is fitted to the core.
SOLUTION: A holding member 24 is fitted to a core 32 and disposed in a molding die 30 in this fitted state, and after a die molding part is formed thereby, the core 32 is extracted. In more detail, the core 32 is fitted in the holding member 24 shaped like a slender tube, and in this fitted state, the opposite end parts of the core are inserted into hollow seat parts 14a in the end parts of extruded parts 20 and disposed in the molding die 30. In a state wherein the opposite end parts of the extruded parts 20, the core 32 and the holding member 24 are set in the molding die 30, rubber for forming a die molding part is injected and vulcanized. After the vulcanization is finished, a weather strip is taken out of the molding die 30, while only the core 32 is extracted from a core extraction hole 15 by using an operating arm 34.
Inventors:
Tsuguhiro Yano
Ueda Tomohito
Ueda Tomohito
Application Number:
JP12219597A
Publication Date:
February 01, 2006
Filing Date:
May 13, 1997
Export Citation:
Assignee:
TOYO TIRE & RUBBER CO.,LTD.
International Classes:
B29C65/70; B29C39/10; B29C47/00; B29C69/02; B29L31/30; (IPC1-7): B29C65/70; B29C39/10; B29C47/00; B29C69/02; B60J10/08; //B29L31:30
Domestic Patent References:
| JP57030379B2 | ||||
| JP63047454Y2 | ||||
| JP63134216A | ||||
| JP5058389B2 | ||||
| JP7055525B2 | ||||
| JP58151233A |
Attorney, Agent or Firm:
Tamako Tsutada
Masato Tsuda
Masato Tsuda