Invention Grant
- Patent Title: Pneumatic tire
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Application No.: US16474532Application Date: 2017-12-27
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Publication No.: US11331957B2Publication Date: 2022-05-17
- Inventor: Hiroshi Furusawa
- Applicant: The Yokohama Rubber Co., LTD.
- Applicant Address: JP Tokyo
- Assignee: The Yokohama Rubber Co., LTD.
- Current Assignee: The Yokohama Rubber Co., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Thorpe North & Western
- Priority: JPJP2017-031133 20170222
- International Application: PCT/JP2017/047129 WO 20171227
- International Announcement: WO2018/154969 WO 20180830
- Main IPC: B60C11/11
- IPC: B60C11/11 ; B60C11/13 ; B60C11/01 ; B60C11/03

Abstract:
A pneumatic tire includes lug grooves arranged in a circumferential direction in a tread surface of a land portion defined by two main grooves adjacent in a lateral direction, the lug grooves each crossing the circumferential direction and communicating at both ends with the main grooves, defining the land portion in the circumferential direction. A notch portion is formed on an opening edge of the lug grooves. The notch portion is cutout from the tread surface inward in a radial direction. The lug grooves have a maximum groove width at a position from 30% to 70% of a lateral direction dimension of the land portion from one of the main grooves and a groove width that decreases from the maximum groove width to the main grooves. The notch portion has a notch width that increases from a position of the maximum groove width of the lug grooves to the main grooves.
Public/Granted literature
- US20200023688A1 Pneumatic Tire Public/Granted day:2020-01-23
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