Title:
空気入りタイヤ
Document Type and Number:
Japanese Patent JP4392339
Kind Code:
B2
Abstract:
A pneumatic tire (1) comprises a tread portion (2) provided with annular regions (4) separated by continuous circumferential grooves (3), each of said annular regions (4) provided with axial grooves (5) each extending from one of the axial edges of the annular region, wherein each axial groove (5) is defined as having a groove width (Wg) of from 2.0 to 6.0 mm and an axial length (F) of not less than 40% of the axial width (Wr) of the annular region. The annular regions (4) are different from each other with respect to the number (Nj) of the axial grooves therein, and the greatest common divisor of the different numbers (Nj) of the grooved annular regions (4) is in a range of from 10 to 40.
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Inventors:
Shiramizu Toshimichi
Application Number:
JP2004373976A
Publication Date:
December 24, 2009
Filing Date:
December 24, 2004
Export Citation:
Assignee:
Sumitomo Rubber Industries, Ltd.
International Classes:
B60C11/117; B60C11/03; B60C11/04; B60C11/13
Domestic Patent References:
JP7132709A | ||||
JP2003170705A | ||||
JP63125411A | ||||
JP4110210A | ||||
JP2000158916A | ||||
JP2004299652A | ||||
JP7179104A | ||||
JP853004A |
Attorney, Agent or Firm:
Sumitomo Shintaro