Invention Grant
US08424579B2 Pneumatic tire with side wall white rubber and bead filler soft rubber portion
有权
气动轮胎与侧壁白色橡胶和胎圈填料软橡胶部分
- Patent Title: Pneumatic tire with side wall white rubber and bead filler soft rubber portion
- Patent Title (中): 气动轮胎与侧壁白色橡胶和胎圈填料软橡胶部分
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Application No.: US12555937Application Date: 2009-09-09
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Publication No.: US08424579B2Publication Date: 2013-04-23
- Inventor: Makoto Yoshikawa
- Applicant: Makoto Yoshikawa
- Applicant Address: JP Osaka
- Assignee: Toyo Tire & Rubber Co., Ltd.
- Current Assignee: Toyo Tire & Rubber Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Fish & Richardson P.C.
- Priority: JP2008-289002 20081111
- Main IPC: B60C13/04
- IPC: B60C13/04 ; B60C15/06

Abstract:
A pneumatic tire has an annular bead core, a bead filler, a carcass ply rolled up in such a manner as to pinch the bead core and the bead filler, and a white rubber arranged in an outer side of the carcass ply of the side wall portion. The white rubber has an inner peripheral end positioned in an outer side of the bead filler. The bead filler has a main body rubber portion running into the bead core from a leading end, and a soft rubber portion constructing a part of an outer surface of the bead filler and positioned in an inner side of the inner peripheral end of the white rubber. The soft rubber portion is harder than the white rubber and softer than the main body rubber portion.
Public/Granted literature
- US20100116401A1 Pneumatic Tire Public/Granted day:2010-05-13
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