Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2015/166805
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a pneumatic tire that can increase the durability performance of a bead portion. A pneumatic tire according to the present invention is provided with: a carcass (6) extending in a toroidal manner between a pair of bead portions (4); and a bead core (5) comprising an inner core (5i) and an outer core (5o) disposed in each of the bead portions (4) and respectively disposed inside and outside the carcass (6) in the tire axis direction. The bead portion (4) includes an inner bead apex rubber (8i) extending outward from the inner core (5i) in a tire radius direction, and an outer bead apex rubber (8o) extending outward from the outer core (5o) in the tire radius direction. A height (Ho) from a bead base line (BL) to an outer end (8oe) of the outer bead apex rubber (8o) is 120 to 150% of a height (Hi) from the bead base line (BL) to an outer end (8ie) of the inner bead apex rubber (8i).
Inventors:
KUJIME TOMOYUKI (JP)
Application Number:
PCT/JP2015/061537
Publication Date:
November 05, 2015
Filing Date:
April 15, 2015
Export Citation:
Assignee:
SUMITOMO RUBBER IND (JP)
International Classes:
B60C15/00; B60C9/02; B60C15/06; B60C17/00
Foreign References:
| JP2014061839A | 2014-04-10 | |||
| JP2007537364A | 2007-12-20 | |||
| JP2001526607A | 2001-12-18 | |||
| JP2003514706A | 2003-04-22 | |||
| JP2001097010A | 2001-04-10 |
Other References:
See also references of EP 3138700A4
Attorney, Agent or Firm:
SUMITOMO Shintaro (JP)
Shintaro Sumitomo (JP)
Shintaro Sumitomo (JP)
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