Title:
TIRE
Document Type and Number:
WIPO Patent Application WO/2021/106976
Kind Code:
A1
Abstract:
This tire is provided with a tread section (10) that includes a pair of circumferential main grooves (20), and the tread section (10) includes a central land region (CR), demarcated by the pair of circumferential grooves (20), and shoulder land regions (SR), demarcated by the circumferential main grooves (20) and tread edges (TE). The central land region (CR) has an aggregated structure in which no main groove that extends in the direction of the tire circumference (TC) is formed. The shoulder land regions (SR) include blocks (40) demarcated by a plurality of shoulder widthwise grooves (30) that traverse in the direction of the tire width (TW). In the blocks (40), sipes (50) are formed that extend in the direction of the tire width (TW) and communicate at one end with the circumferential main groove (20). On a first groove wall (21) of the circumferential main groove (20) at a corner portion (41) of the block (40) formed by the intersection of the circumferential main groove (20) and the shoulder widthwise groove (30), a convex section (43) is formed that protrudes inward in the direction of the tire width.
Inventors:
ISHIHARA NOBUYUKI
Application Number:
PCT/JP2020/043928
Publication Date:
June 03, 2021
Filing Date:
November 26, 2020
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60C11/03; B60C11/12; B60C11/13
Domestic Patent References:
| WO2012176766A1 | 2012-12-27 |
Foreign References:
| JPH06278413A | 1994-10-04 | |||
| JP2019156177A | 2019-09-19 | |||
| JP2010260471A | 2010-11-18 | |||
| JP2016137763A | 2016-08-04 | |||
| JP2014177237A | 2014-09-25 | |||
| KR20150073535A | 2015-07-01 | |||
| JPH03193508A | 1991-08-23 | |||
| JPH026203A | 1990-01-10 | |||
| JP2014177237A | 2014-09-25 | |||
| JP2019216891A | 2019-12-26 |
Other References:
See also references of EP 4067117A4
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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