Invention Grant
- Patent Title: Pneumatic tire
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Application No.: US16069756Application Date: 2017-01-12
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Publication No.: US11413909B2Publication Date: 2022-08-16
- Inventor: Yasutaka Akashi
- 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: JPJP2016-003415 20160112
- International Application: PCT/JP2017/000871 WO 20170112
- International Announcement: WO2017/122741 WO 20170720
- Main IPC: B60C15/04
- IPC: B60C15/04 ; B60C9/04

Abstract:
A pneumatic tire includes a bead core including circumferential portions made of metal wire bundled in rows disposed at each bead portion; and a carcass layer turned up at end portions around the bead cores from a tire inner side to an outer side; the bead cores including at least two central layers centrally located in a tire radial direction, at least one upper layer outward of the central layers in the radial direction, and at least one lower layer inward of the central layers in the radial direction; a number of the circumferential portions made of metal wire in the central layers is equal to each other and a maximum value; and a number of the circumferential portions made of metal wire in the upper layer(s) and the lower layer(s) being reduced by one from the maximum value for each layer away from the central layers.
Public/Granted literature
- US20190023082A1 Pneumatic Tire Public/Granted day:2019-01-24
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