Title:
TIRE
Document Type and Number:
WIPO Patent Application WO/2020/129971
Kind Code:
A1
Abstract:
A pneumatic tire (10) has a tread (20) in which circumferential direction grooves (25) are formed extending in the tire circumferential direction. A spiral belt (100) includes reinforcing cords wound in the tire circumferential direction. The reinforcing cords have a tensile breaking strength of not less than 10 cN/dtex, and an elongation at break of not more than 13%. The spiral belt (100) is configured by winding a cord unit, in which a plurality of reinforcing cords are arranged along the tire width direction, along the tire circumferential direction. The width of the cord unit in the tire width direction is smaller than a width GW of the circumferential direction grooves (25) in the tire width direction.
Inventors:
FUKUZAKI SHO
HOSODA TOSHIO
HOSODA TOSHIO
Application Number:
PCT/JP2019/049378
Publication Date:
June 25, 2020
Filing Date:
December 17, 2019
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60C9/00; B60C9/22
Domestic Patent References:
| WO2015045728A1 | 2015-04-02 |
Foreign References:
| JP2008195148A | 2008-08-28 | |||
| JP2016147655A | 2016-08-18 | |||
| JP2018108753A | 2018-07-12 | |||
| JP2018164967A | 2018-10-25 | |||
| JP2006240471A | 2006-09-14 |
Other References:
See also references of EP 3900953A4
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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