Title:
【発明の名称】空気入りラジアルタイヤ
Document Type and Number:
Japanese Patent JP2897185
Kind Code:
B2
Abstract:
PURPOSE:To properly maintain a good ground contact area even at the time of cornering by forming a ground contact slant surface on a land part divided with the circumferential grooves of treads in such a way as to be lower by the predetermined distance than a specific reference surface at an axial outer end, and higher at an inner end by the predetermined distance. CONSTITUTION:A tire comprises a pair of side walls 10, and a cylindrical crown part 20 at the radial external end thereof toroidally continuous to each other, and a tread T in contact with a road around the crow part 20. The tread T has a plurality of land parts 42 formed with a plurality of circumferential grooves 30-32 along an equatorial surface 0. In the aforesaid construction, the ground contact area slope 42A of the land parts 42 and so forth has an axial external end 42B with height h' 0.05 mm to 1 mm lower than a reference surface S. Also, the height h of an axial inner end 42C is made 0.05 to 1 mm higher than the reference surface. According to the aforesaid construction, a good ground contact area can be maintained even when the land parts 42 and so forth are subjected to a lateral force particularly at the time of cornering.
Inventors:
HARA HIDEO
Application Number:
JP24656689A
Publication Date:
May 31, 1999
Filing Date:
September 25, 1989
Export Citation:
Assignee:
BURIJISUTON KK
International Classes:
B60C11/04; B60C11/00; B60C11/11; B60C11/13; (IPC1-7): B60C11/11; B60C11/00; B60C11/04
Domestic Patent References:
| JP2185807A | ||||
| JP5741202A | ||||
| JP1289706A | ||||
| JP6192903A | ||||
| JP6317102A | ||||
| JP62241709A | ||||
| JP61229603A | ||||
| JP636902U | ||||
| JP5733163B2 | ||||
| JP63682Y2 | ||||
| JP5257524Y2 |
Other References:
【文献】特許2573196(JP,B1)
Attorney, Agent or Firm:
Hidekazu Miyoshi (1 outside)