Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR MANUFACTURING TIRE AND APPARATUS FOR MANUFACTURING TIRE
Document Type and Number:
WIPO Patent Application WO/2017/209057
Kind Code:
A1
Abstract:
Provided are a method for manufacturing a tire and an apparatus for manufacturing a tire capable of making a tire manufacturing step more efficient. The method for manufacturing a tire according to the present invention comprises: a step of injecting unvulcanized tread rubber, being extruded using an extrusion molding unit, into an air gap part formed by an external surface of a green case arranged between a vulcanization mold and a bladder positioned inside the vulcanization mold and by a molding surface of the vulcanization mold; and a step of vulcanizing the unvulcanized tread rubber after injecting the unvulcanized tread rubber into the air gap part. The apparatus for manufacturing a tire according to the present invention is provided with a vulcanization mold having a molding surface, a diametrically expansible and contractible bladder, and an extrusion molding unit that extrudes unvulcanized tread rubber. The vulcanization mold comprises: a joining part connectable to the extrusion molding unit; and an inflow path that causes the unvulcanized tread rubber to flow from the outside to the inside of the vulcanization mold.

Inventors:
TAGUCHI Yusuke (1-1 Kyobashi 3-chom, Chuo-ku Tokyo 40, 〒1048340, JP)
TOMINAGA Keisuke (1-1 Kyobashi 3-chom, Chuo-ku Tokyo 40, 〒1048340, JP)
Application Number:
JP2017/019931
Publication Date:
December 07, 2017
Filing Date:
May 29, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
BRIDGESTONE CORPORATION (1-1 Kyobashi 3-chome Chuo-ku Tokyo, 40, 40, 〒1048340, JP)
International Classes:
B29C35/02; B29C33/02
Attorney, Agent or Firm:
SUGIMURA Kenji (36F Kasumigaseki Common Gate West, 3-2-1 Kasumigasek, Chiyoda-ku Tokyo 13, 〒1000013, JP)
Download PDF: