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Title:
RUN-FLAT TIRE
Document Type and Number:
WIPO Patent Application WO/2020/004110
Kind Code:
A1
Abstract:
This run-flat tire is provided with: a pair of bead cores; a carcass; side reinforcing rubber which is provided inside of the carcass in the tire width direction; and a rim guard which is provided on the outside surface of the tire and which limits collapse of the bead part to outside in the tire axial direction. When the center line through the center of the carcass thickness is set as a case line, (t/G) between the point of intersection (0.1 Hp) and the point of intersection (0.3 Hp) is set within the range 40-80%, (t/G) between the point of intersection (0.8 Hp) and the point of intersection (0.9 Hp) is set within the range 30-60%, and the position of the apex of the rim guard is set within the range of 10-20% of the side height from the reference line outwards in the tire radial direction.

Inventors:
YAMAGUCHI MASASHI (JP)
Application Number:
JP2019/023949
Publication Date:
January 02, 2020
Filing Date:
June 17, 2019
Export Citation:
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Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60C17/00; B60C9/08; B60C15/00
Domestic Patent References:
WO2017043205A12017-03-16
Foreign References:
JP2009018771A2009-01-29
JP2006035900A2006-02-09
JP2000043519A2000-02-15
JP2006231961A2006-09-07
JP2010083318A2010-04-15
JP2015157579A2015-09-03
JPH11157310A1999-06-15
JP2013159263A2013-08-19
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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