Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2012/073420
Kind Code:
A1
Abstract:
A pneumatic tire includes a plurality of circumferential grooves (12,14,16) and a first land portion (22). The circumferential grooves extend continuously in a tire circumferential direction. The first land portion extends in the tire circumferential direction between a pattern end (18a) and one of the circumferential grooves (12) in a shoulder region (18) located outside the circumferential grooves (12,14,16) in a tire width direction. The first land portion (22) has a first lug grooves (23) extending from the pattern end (18a) in the tire width direction and closed without communicating with the circumferential grooves are arranged in the tire circumferential direction. At least one circumferential groove (12) is a wave shaped with a constant groove width (12W) in the tire width direction at a tread surface and formed in a wave -shape in the circumferential direction at the tread surface and groove bottom (12b) the wave -shaped circumferential direction at the tread surface and groove bottom (12b). The wave- shaped circumferential groove (12) has a shorter cycle length of waves (12P1) at the groove bottom than at the tread surface.
More Like This:
| JP4492609 | Pneumatic tires for heavy loads |
| JP2541919 | [Title of the Invention] Pneumatic tire |
| JPS649008 | ALL-WEATHER TYPE PNEUMATIC TIRE |
Inventors:
EBIKO MASAHIRO (JP)
Application Number:
PCT/JP2011/005635
Publication Date:
June 07, 2012
Filing Date:
October 06, 2011
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
EBIKO MASAHIRO (JP)
EBIKO MASAHIRO (JP)
International Classes:
B60C11/04
Foreign References:
| EP1661732A2 | 2006-05-31 | |||
| US5154216A | 1992-10-13 | |||
| US3664402A | 1972-05-23 | |||
| JPS6332002U | 1988-03-01 | |||
| JPS59124412A | 1984-07-18 | |||
| JPH0740712A | 1995-02-10 |
Attorney, Agent or Firm:
GLOBAL IP TOKYO (8-3-30 Nishi-Shinjuku, Shinjuku-k, Tokyo 23, JP)
Download PDF:
Claims: