Title:
TIRE VULCANIZATION MOLD
Document Type and Number:
WIPO Patent Application WO/2018/061055
Kind Code:
A1
Abstract:
Provided is a tire vulcanization mold that has side-molding surfaces that have precisely arranged gaps that discharge air that is between side molds and a green tire. A tire vulcanization mold 10 that comprises a pair of upper and lower side molds 14, 15 that have side-molding surfaces 14a, 15a that mold side wall parts of a tire. The side molds 14, 15 comprise: a side mold main body 21 that comprises, at intervals in a tire circumferential direction, a plurality of recesses 25 that open toward the side-molding surface 15a; a plurality of pieces 23 that fit into the recesses 25; and gaps 29 that are formed between the side mold main body 21 and the pieces 23. The recesses 25 comprise: an outside inner wall surface 25a that demarcates the tire-radial-direction outside; an inside inner wall surface 25b that demarcates the tire-radial-direction inside; a pair of radial-direction inner wall surfaces 25c, 25c that, between the outside inner wall surface 25a and the inside inner wall surface 25b, demarcate one tire-circumferential-direction side and another; and curved surfaces 25d that connect the outside inner wall surface 25a and the radial-direction inner wall surfaces 25c.
Inventors:
OHARA MASAAKI (JP)
Application Number:
PCT/JP2016/004384
Publication Date:
April 05, 2018
Filing Date:
September 28, 2016
Export Citation:
Assignee:
TOYO TIRE & RUBBER CO (JP)
International Classes:
B29C33/02; B29C35/02
Foreign References:
| JP2012135897A | 2012-07-19 | |||
| JPS63264308A | 1988-11-01 | |||
| JP2002307441A | 2002-10-23 | |||
| JP2016074170A | 2016-05-12 |
Attorney, Agent or Firm:
TSUTADA, Masato et al. (JP)
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