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Patent Searching and Data


Title:
RUN-FLAT TIRE
Document Type and Number:
WIPO Patent Application WO/2020/066865
Kind Code:
A1
Abstract:
In the present invention, a carcass (40) has a main body part (41) and a folded-back part (42) folded back toward the outside in the tire width direction via a bead part (60). A bead filler is not interposed between the main body part 41 and the folded-back part (42). In cross-sections of this run-flat tire (10) in the tire width direction and the tire radius direction, side-reinforcing rubber (70) is provided to the inside of the carcass (40) in the tire width direction and has a crescent shape. At least a portion of the main body part (41), positioned further to the inside in the tire radius direction than a tire radius direction inner end (CR1) of a contact region (CR) in which the folded-back part (42) contacts the main body part (41), is provided within a central region with respect to the center, in the thickness direction, of an area ranging from the outer surface to the inner surface of the run-flat tire (10).

Inventors:
TAKAYAMA YOSHIHISA
Application Number:
JP2019/036876
Publication Date:
April 02, 2020
Filing Date:
September 20, 2019
Export Citation:
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Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60C17/00; B60C9/08; B60C15/04
Domestic Patent References:
WO2003024727A12003-03-27
Foreign References:
JP2002301915A2002-10-15
JP2014223839A2014-12-04
JP2014223833A2014-12-04
JPH1120425A1999-01-26
JP2006035909A2006-02-09
JP2010215017A2010-09-30
JP2000309211A2000-11-07
JP2005161998A2005-06-23
JP2000043518A2000-02-15
JP2012011948A2012-01-19
JP2010247710A2010-11-04
JP2008308015A2008-12-25
JP2003175704A2003-06-24
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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