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Patent Searching and Data


Title:
TIRE VULCANIZATION MOLD, TIRE VULCANIZATION DEVICE, AND TIRE PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/029730
Kind Code:
A1
Abstract:
A tire vulcanization mold according to an embodiment is equipped with a sector 13 which is split in the tire circumferential direction and molds the tread section 1, and a pair of upper and lower side plates 11, 12 which mold a sidewall section 2. Therein, mold-splitting lines 16a, 17a formed between the sector and the pair of upper and lower side plates are located on the tread section 1. A lateral groove-molding rib 18 for molding a lateral groove 5 in the tread section is provided so as to span a range from the sector into the side plates. A projection-molding recess 18a for molding a projection 5a on the groove floor of the lateral groove 5 is provided in the lateral groove-molding rib 18. The mold-splitting surfaces 16, 17 split the lateral groove-molding rib 18 at locations where the projection-molding recess 18a is not provided. The lateral groove-molding rib 18 is further provided with an air discharge channel 19 which connects the projection-molding recess 18a to one of the mold-splitting surfaces.

Inventors:
OHARA MASAAKI (JP)
Application Number:
PCT/JP2016/003733
Publication Date:
February 15, 2018
Filing Date:
August 12, 2016
Export Citation:
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Assignee:
TOYO TIRE & RUBBER CO (JP)
International Classes:
B29C33/02; B29C35/02
Foreign References:
JP2001096538A2001-04-10
JP2005231259A2005-09-02
JPS61144309A1986-07-02
JPS62214907A1987-09-21
Attorney, Agent or Firm:
TSUTADA, Masato et al. (JP)
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