Title:
RUN FLAT TIRE
Document Type and Number:
WIPO Patent Application WO/2019/244769
Kind Code:
A1
Abstract:
A run flat tire according to the present invention is provided with a resin annular body provided in a tread portion, bead members provided in each of a pair of bead portions, and a linking body linking the resin annular body and the bead members, wherein: the resin annular body is provided, in at least both end portions thereof in the width direction of the tire, with diametrically contracting portions which contract diametrically toward the inside in the radial direction of the tire; when seen in a cross section parallel to the width direction of the tire, the ratio of the maximum length of a region of extension of the resin annular body from the inside to the outside thereof in the radial direction of the tire to the maximum length of the region of extension of the resin annular body in the width direction of the tire is at least equal to 0.03; and the modulus of elasticity of the resin annular body is at least equal to 450 MPa.
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Inventors:
KURATA TAKAYUKI (JP)
Application Number:
PCT/JP2019/023505
Publication Date:
December 26, 2019
Filing Date:
June 13, 2019
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60C9/18; B60C9/02; B60C9/08; B60C17/00
Domestic Patent References:
| WO2005047028A1 | 2005-05-26 |
Foreign References:
| JPS54153402A | 1979-12-03 | |||
| JP2000177315A | 2000-06-27 | |||
| JP2017121909A | 2017-07-13 | |||
| JP2018027756A | 2018-02-22 | |||
| JP2014024358A | 2014-02-06 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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