Resilient tires and wheels – Tires – resilient – Anti-skid devices
Patent
1993-09-10
1995-07-11
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Anti-skid devices
B60C10700
Patent
active
054312086
ABSTRACT:
A radial tire improved in total performance which comprises a tread portion; the tread portion provided with a block pattern consisting of blocks defined by at least one circumferential groove and a plurality of axial grooves: the block pattern having a land ratio of not less than 0.67; with respect to blocks BT which exist wholly or partially in the ground contacting part of the tread, the total .SIGMA.I.sub.x of the second moment of areas I.sub.x of all said blocks BT being larger than the total .SIGMA.I.sub.y of the second moment of areas I.sub.y of all said blocks BT, wherein each said second moment of area I.sub.x is of the shape of the top surface of each block BT about a circumferential line (X) passing a center point (O) on the top surface, and the second moment of area I.sub.y is of the shape of the top surface about an axial line (Y) passing the center point (O).
REFERENCES:
patent: 4811771 (1989-03-01), Shoemaker et al.
patent: 4815512 (1989-03-01), Gerresheim et al.
patent: 5178699 (1993-01-01), Kakumu et al.
patent: 5222537 (1993-06-01), Saito et al.
Aoki Chieko
Asano Kazuo
Ball Michael W.
Maki Steven D.
Sumitomo Rubber Industries Ltd.
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