Title:
PNEUMATIC TIRE MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/158199
Kind Code:
A1
Abstract:
Provided is a pneumatic tire manufacturing method with which it is possible to efficiently eliminate an unnecessary projection formed on a tire surface at a dividing position between a side plate and a sector and thereby obtain a pneumatic tire in which air resistance is reduced. The manufacturing method comprises: performing vulcanization using a mold 10 that has a side plate 11 for molding a side wall part of a pneumatic tire T and a sector 13 for molding a tread part of the pneumatic tire T and forms chamfered parts 110 and 130 at an edge part at which the side plate 11 and the sector 13 are abutted on each other; forming a ridge 150 that extends in a tire circumferential direction along the chamfered parts 110 and 130 at the dividing position between the side plate 11 and the sector 13 in the pneumatic tire T vulcanized inside the mold 10; and cutting the ridge 150 with a cutter 170 along the tire circumferential direction.
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Inventors:
WATANABE DAISUKE (JP)
Application Number:
PCT/JP2019/048377
Publication Date:
August 06, 2020
Filing Date:
December 11, 2019
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B29C33/02; B29C35/02; B29D30/06; B29L30/00
Domestic Patent References:
| WO2018029728A1 | 2018-02-15 |
Foreign References:
| JP2007210248A | 2007-08-23 | |||
| JP2008307800A | 2008-12-25 | |||
| JP2009119624A | 2009-06-04 |
Attorney, Agent or Firm:
SEIRYU PATENT PROFESSIONAL CORPORATION et al. (JP)
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