B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
152/125
B60C 11/00 (2006.01) B60C 11/16 (2006.01)
Patent
CA 1260814
Abstract of the Disclosure: The present invention relates to a structure of a pin for a spike tire to be mounted on a vehicle such as automobile when it runs on a road slippery with ice or snow. The pin is embedded in the tire tread, with the flat end thereof being exposed on the external surface of the tire so that it touches the ice or snow on the road to lower the freezing point thereof. The pin in accordance with the present invention is especially characterized in that the exposed end of the pin has two flat surfaces parallel to the tire side wall and two slightly convex surfaces which are vertical to the tire side wall, the cross-section of the body portion of the pin being substantially square and the outwardly spreading basal portion of the pin being oval-shaped, so that when the vehicle starts to move or is braked, said slightly convex vertical surfaces of the pin are selectively forced to project from the tire in accordance with the tire deformation.
494300
Macrae & Co.
Takahashi Sakae
LandOfFree
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