Pneumatic tire having improved wear properties

Details Pneumatic tire having improved wear properties Pneumatic tire having improved wear properties

1995-01-20

1998-10-20

Maki, Steven D.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152209D, 152454, 152DIG3, B60C 300, B60C 1101, B60C 1112, B60C11500

Patent

active

058241698

ABSTRACT:
A pneumatic tire having improved wet traction has lugs containing sipes which change direction within the lug and tie bars in the sipes near each point where the sipes change direction. Siping, and the positioning of tie bars, provide means for minimizing the difference of the principle direction of lug stiffness between individual lugs. Also, a tire of the invention has 4 pitch ratios which are distributed around the tire so that extra large pitches are not located next to small pitches.

REFERENCES:
patent: 4474223 (1984-10-01), Landers
patent: 5000239 (1991-03-01), Brayer et al.
patent: 5027876 (1991-07-01), Chrobak et al.
patent: 5109904 (1992-05-01), Numata et al.
patent: 5117886 (1992-06-01), Tokutake
patent: 5176766 (1993-01-01), Landers et al.
patent: 5200006 (1993-04-01), Takehara
patent: 5238038 (1993-08-01), Glover et al.
patent: 5247979 (1993-09-01), Asano
patent: 5388625 (1995-02-01), White
"Patent Abstracts of Japan", vol. 11, No. 392 (M-653), 22 Dec. 1987 & JP-A-62 157810 (Yokohama Rubber Co Ltd:The), 13 Jul. 1987, *abstract*.
"Patent Abstracts of Japan", vol. 15, No. 393 (M-1165), 4 Oct. 1991 & JP-A-03 159804 (Sumitomo Rubber Ind Ltd), 9 Jul. 1991, *abstract*.

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