Sleeve-mounted spike fitted on a vehicle tire
AssigneeNeste Oy
InventorErkki Suvanto
Life of this patent
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Abstract
The invention concerns a sleeve-mounted spike (10) fitted on a vehicle tire, comprising a rivet (11), a head (12), a tip (13) and a sleeve (14). The part (11a) of the rivet towards the tip and the part (11b) towards the head subtend an angle (.alpha.) having a magnitude in the range from 150 to 179 degrees, whereby no rectilinear contact is established between the rivet (11) and the sleeve (14), as a result of which when the rivet (11) is urged against the sleeve (14) in vehicle acceleration, braking or sideslipping situations a greater force is required to push the rivet (11) into the tire rubber, however without arresting the movement of the rivet (11) within the sleeve (14).
Claims12
A sleeve-mounted spike (10;20;30;40;50) fitted on a vehicle tire comprising a rivet (11;21;31;41;51), a head, (12;22;32;42;52), a tip (13;23;33;43;53) and a sleeve (14;24;34;44;54), characterized in that the part (11a;21a;
- 31a;41a;51a) of the rivet towards the tip and the part (11b;21b;31b;41b;51b) of the rivet towards the head subtend an angle (.alpha.)having a magnitude in the range from 150 to 179 degrees, whereby between the rivet (11;21;31;41;51) and the sleeve (14;24;34;44;54) no rectilinear contact is established, with the result that when the rivet (11;21;31;41;51) is urged against the sleeve (14;24;34;44;54) in vehicle acceleration, braking or sideslipping situations a greater force is required to push the rivet (11;21;31;41;51) into the tire, however without arresting the movement of the rivet (11;21;31;41;51) within the sleeve (14;24;34;44;54). .
Dependencies are inferred from the claim text.