Invention Grant
- Patent Title: Pneumatic tire
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Application No.: US16850325Application Date: 2020-04-16
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Publication No.: US11312191B2Publication Date: 2022-04-26
- Inventor: Masako Nakatani , Takahiro Kawachi , Ayuko Yamada , Takuya Horiguchi , Masataka Hiro , Takayuki Nagase , Hiroshi Ito , Fumiya Kato , Subaru Toya
- Applicant: Sumitomo Rubber Industries, Ltd.
- Applicant Address: JP Kobe
- Assignee: Sumitomo Rubber Industries, Ltd.
- Current Assignee: Sumitomo Rubber Industries, Ltd.
- Current Assignee Address: JP Kobe
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2016-237853 20161207
- Main IPC: B60C19/00
- IPC: B60C19/00 ; B60C1/00 ; B60C9/18 ; C08L7/00 ; C08L9/06 ; B60C11/00 ; B60C5/00

Abstract:
A pneumatic tire 1 comprises a carcass 6 extending between bead cores of bead portions via a tread portion 2 and sidewall portions, and a belt layer 7 arranged on an outer side in a tire radial direction of the carcass 6 and inside of the tread portion 2. The pneumatic tire 1 further comprises a damping rubber body 30 arranged between the carcass 6 and the belt layer 7, and a noise damper 20 arranged on an inner cavity surface of the tread portion 2. A width W1 in a tire axial direction of the damping rubber body 30 is in a range of from 60% to 130% of a width W2 in the tire axial direction of the belt layer 7, and a water absorption rate of the noise damper 20 is in a range of from 10% to 25%.
Public/Granted literature
- US20200238768A1 PNEUMATIC TIRE Public/Granted day:2020-07-30
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