Title:
METHOD AND APPARATUS FOR MOLDING GREEN TIRE
Document Type and Number:
Japanese Patent JP3796326
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus for molding a green tire for efficiently molding the tire with excellent uniformity by facilitating initial synchronization of extrusion of a rubber extruded material with rotation of a drum for molding the tire.
SOLUTION: In the method for molding a green tire comprising the steps of extruding a strip 3 of unvulcanized rubber from an extruder 4, winding the strip 3 plural times on a periphery of the drum 1 while synchronizing with rotation of the drum 1 and molding a tire constituting member, a valve 7 is provided at a discharge unit 5 of the extruder 4, the valve 7 is previously closed at the time of starting molding, the valve 7 is opened at the time of arriving an extruding pressure of the extruder 4 at a predetermined pressure, and closed at the time of completing the winding of the tire constituting member.
Inventors:
Masahiko Soma
Atsushi Funayama
Atsushi Funayama
Application Number:
JP21212697A
Publication Date:
July 12, 2006
Filing Date:
August 06, 1997
Export Citation:
Assignee:
THE YOKOHAMA RUBBER CO.,LTD.
International Classes:
B29D30/60; B29C48/30; B29D30/16; B29D30/30; B29C48/00; B29K21/00; B29L30/00; (IPC1-7): B29D30/16; B29C47/12; B29D30/30; B29D30/60; //B29K21:00; B29L30:00
Domestic Patent References:
| JP51142081A | ||||
| JP60214935A | ||||
| JP8258114A | ||||
| JP4220325A | ||||
| JP62033621A | ||||
| JP2293116A | ||||
| JP56101826U |
Attorney, Agent or Firm:
Shinichi Ogawa
Takashi Noguchi
Kazuhiko Saishita
Takashi Noguchi
Kazuhiko Saishita
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