Title:
タイヤ
Document Type and Number:
Japanese Patent JP7290066
Kind Code:
B2
Abstract:
In a tire having a composite groove provided on a shoulder land portion, the durability of the shoulder land portion is improved. The tire includes a tread portion 2. The tread portion 2 includes a first shoulder land portion 13 including a first tread edge Tel. The first shoulder land portion 13 has a shoulder composite groove 20, and a recess 18 formed on a buttress surface 16. The recess 18 includes an opening edge 23 on the buttress surface 16, a bottom surface 24 along the buttress surface 16, and an inner wall surface 25 connecting the opening edge 23 to the bottom surface 24. The shoulder composite groove 20 includes, in a transverse cross section thereof, a sipe element 21 having a width not greater than 1.5 mm and extending in a tire radial direction, and a groove element 22 connected to an inner side in the tire radial direction of the sipe element 21 and having a width greater than 1.5 mm. The groove element 22 is open at the bottom surface 24 of the recess 18.
Inventors:
Hiroshi Yamaoka
Yoshiaki Kanematsu
Yoshiaki Kanematsu
Application Number:
JP2019102098A
Publication Date:
June 13, 2023
Filing Date:
May 31, 2019
Export Citation:
Assignee:
Sumitomo Rubber Industries, Ltd.
International Classes:
B60C11/12; B60C11/01; B60C11/03
Domestic Patent References:
| JP2018513046A | ||||
| JP2013540077A | ||||
| JP48037801A | ||||
| JP2018535879A |
Attorney, Agent or Firm:
Shintaro Sumitomo
Shigetake Ura
Jun Naemura
Yukinobu Ishihara
Satoshi Ichida
Shigetake Ura
Jun Naemura
Yukinobu Ishihara
Satoshi Ichida
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