ANTISKID SPIKE FOR VEHICLE TYRES,

WIPO Patent Application WO/1999/056976

A1

The present invention pertains to the field of motor-vehicle construction and relates to a structure of antiskid spikes which are mounted on the tyres of vehicles in order to improve the tyre adhesion onto a road coating having a low adhesion coefficient. The antiskid spike includes a body which has a support surface and which comprises a wear-resistant insert mounted therein, wherein said insert is made of a hard material and protrudes outwardly towards the back crest. The body is made of a polymeric material or a material containing compounds with a high molecular weight, and the insert is made in the shape of a truncated cone having its base connected to the body while its summit protrudes outside. The insert consists of an elongated body having its cross section in the shape of a geometrical figure with a limited number of planes of symmetry. In order to ensure the three-dimensional orientation of the spike relative to the insert sides as it is mounted in the tyre cap, the body is provided with three-dimensional orientation members along the longitudinal axis. A spike realised according to the above-mentioned criteria has an essentially reduced weight and provides for unique adhesion characteristics of the tyre in the different displacement directions thereof. Also, according to the required characteristics, the spike can further be oriented in a circular direction on the whole tread of the tyre.

MIRONOV STANISLAV ALEXEEVICH
ZELENOVA VERA NIKITICHNA
AJUPOV MNAVAR ISMAGILOVICH
ILIYASOV RADIK SABITOVICH
KUSHNIR PETR ALEXEEVICH
AIZINSON IGOR LITMANOVICH

PCT/RU1998/000136

November 11, 1999

April 30, 1998

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OTKRYTOE AKTSIONERNOE OBSCHEST (RU)

B60C11/16; (IPC1-7): B60C11/16

US3476166A	1969-11-04
SU1519929A1	1989-11-07
GB1063936A	1967-04-05
DE1228158B	1966-11-03

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