Invention Grant
- Patent Title: Pneumatic tire
- Patent Title (中): 气动轮胎
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Application No.: US14023129Application Date: 2013-09-10
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Publication No.: US09272583B2Publication Date: 2016-03-01
- Inventor: Hiroshi Ito
- Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
- Applicant Address: JP Kobe-Shi
- Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee Address: JP Kobe-Shi
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2012-209167 20120924
- Main IPC: B60C15/05
- IPC: B60C15/05 ; B60C17/00 ; B60C17/04 ; B60C15/04 ; B60C15/06

Abstract:
A tire 2 includes beads 10, a carcass 12, and an insert 18. The carcass 12 includes a carcass ply 36. An inner part 34a of each bead 10 includes an inner core 46a and an inner apex 48a that extends almost outward of the inner core 46a in the radial direction. An outer part 34b of each bead 10 includes an outer core 46b and an outer apex 48b that extends almost outward of the outer core 46b in the radial direction. A ratio of a complex elastic modulus Ea of the inner apex 48a to a complex elastic modulus Eb of the outer apex 48b is less than or equal to 0.3. A ratio of the complex elastic modulus Ea to a complex elastic modulus Ec of the insert 18 is greater than or equal to 1.
Public/Granted literature
- US20140083591A1 PNEUMATIC TIRE Public/Granted day:2014-03-27
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