Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2020/059395
Kind Code:
A1
Abstract:
Provided is a pneumatic tire in which steering stability on a dry road surface is maintained and snow performance can be improved. In this pneumatic tire, a pair of inner main grooves 11 and a pair of outer main grooves 12 are formed in a tread portion 1, a center land portion 21 is formed between the two inner main grooves 11, intermediate land portions 22 are sectioned between the inner main grooves 11 and the outer main grooves 12, shoulder land portions 23 are sectioned on the outer sides of the outer main grooves 12, a plurality of sipes 31-33 having three-dimensional shapes are formed in the land portions 21-23, a plurality of lug grooves 42 each having a bent part are formed in the intermediate land portions 22, one end of each of the lug grooves 42 having a bent part opens into an outer main groove 12 while the other end terminates within an intermediate land portion 22, the groove width W1 of the inner main grooves 11 is in a range of 28% to 33% relative to both the width WL1 of the center land portion 21 and the width WL2 of the intermediate land portions 22, and the groove width W2 of the outer main grooves 12 is in a range of 28% to 33% relative to both the width WL1 of the center land portion 21 and the width WL2 of the intermediate land portions 22.
Inventors:
NAGAHASHI YUKI (JP)
Application Number:
PCT/JP2019/032574
Publication Date:
March 26, 2020
Filing Date:
August 21, 2019
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B60C11/03; B60C11/12; B60C11/13
Domestic Patent References:
| WO2016024593A1 | 2016-02-18 |
Foreign References:
| JP2014205410A | 2014-10-30 | |||
| JP2015048048A | 2015-03-16 | |||
| JP2018108777A | 2018-07-12 | |||
| JP2017088174A | 2017-05-25 | |||
| JP2016137763A | 2016-08-04 | |||
| JP2019167412A | 2019-10-03 |
Attorney, Agent or Firm:
SEIRYU PATENT PROFESSIONAL CORPORATION et al. (JP)
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