Invention Grant
- Patent Title: Tire
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Application No.: US16879981Application Date: 2020-05-21
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Publication No.: US11433711B2Publication Date: 2022-09-06
- Inventor: Hiroshi Yamaoka , Yoshiaki Kanematsu
- Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
- Applicant Address: JP Hyogo
- Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee Address: JP Hyogo
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JPJP2019-102098 20190531
- Main IPC: B60C11/12
- IPC: B60C11/12 ; B60C11/03

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. The tread portion includes a first shoulder land portion including a first tread edge. The first shoulder land portion has a shoulder composite groove, and a recess formed on a buttress surface. The recess includes an opening edge on the buttress surface, a bottom surface along the buttress surface, and an inner wall surface connecting the opening edge to the bottom surface. The shoulder composite groove includes, in a transverse cross section thereof, a sipe element having a width not greater than 1.5 mm and extending in a tire radial direction, and a groove element connected to an inner side in the tire radial direction of the sipe element and having a width greater than 1.5 mm. The groove element is open at the bottom surface of the recess.
Public/Granted literature
- US20200376898A1 TIRE Public/Granted day:2020-12-03
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