Invention Grant
- Patent Title: Pneumatic tire with cushion rubber and method for producing the same
- Patent Title (中): 带缓冲橡胶的气动轮胎及其制造方法
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Application No.: US11594129Application Date: 2006-11-08
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Publication No.: US07712500B2Publication Date: 2010-05-11
- Inventor: Norio Hayashi , Masanori Takahashi , Kiyoto Maruoka
- Applicant: Norio Hayashi , Masanori Takahashi , Kiyoto Maruoka
- 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: JP2005-325137 20051109
- Main IPC: B60C9/18
- IPC: B60C9/18 ; B29D30/06

Abstract:
A pneumatic tire 1 having improved uniformity and durability and including a toroidal carcass 6 extending from a tread portion 2 to each of bead cores 5 in bead portions 4 through sidewall portions 3, a belt layer 7 disposed radially outward of the carcass 6 in the tread portion 2, and a cushion rubber 9 having an approximately triangular cross section disposed between the carcass 6 and each of axial edge portions 7E of the belt layer 7, and a method for producing the same, wherein the cushion rubber 9 is made from a strip laminated body formed by circumferentially and spirally winding a first ribbon-like unvulcanized rubber strip and a second ribbon-like unvulcanized rubber strip having a different composition from that of the first rubber strip.
Public/Granted literature
- US20070102088A1 Pneumatic tire, method for producing the same and cushion rubber used in the tire Public/Granted day:2007-05-10
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