Vehicle winter tyre and stud for the tyre
AssigneeSpikesafe Oy
InventorMarja Hietarinta-Salakari
Life of this patent
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Abstract
A winter tyre is equipped with studs. The number of studs in the tyre is greater than that stated in the amendment, dating 1 Jun. 2009, to the Finnish Ministry of Transport and Communications Decree 408/2003 concerning vehicle tyre studs. The shape of the stud together with the elasticity of the winter tyre rubber compound creates a piercing force of less than 120 N on the stud. The invention also relates to the stud for a tyre, the tip of the stud being resistant to wear and having a cross-section of 1.80-3.14 mm2.
Claims12
A vehicle winter tyre equipped with studs and which vehicle is intended for normal use and in which the number of studs in the tyre is greater than that stated in the amendment, dating 1 Jun. 2009, to the Finnish Ministry of Transport and Communications Decree 408/2003 concerning vehicle tyre studs, characterized in that the shape of the stud together with the elasticity of the rubber compound of the winter tyre create a piercing force of less than 120 N on the stud.
Dependencies are inferred from the claim text.