| 摘要 |
The primary difficulty with equipment applicable to automobile tires to increase traction on snow-covered ground is mounting the equipment to the tire. The subject apparatus includes a base plate having multiple radially extending slots within which are slidably mounted radially extending rods to which are attached tire engaging claw members that overlap the periphery of the tire. A control plate is mounted onto the base plate and a gear mechanism is mounted between the two plates so that the gear mechanism may be operated to draw the claws inwardly to impose a retention pressure on the periphery of the tire. Means are provided to lock the apparatus in a tire tread engaging position. To remove the apparatus, the locking means are released and the claws are radially extended away from the tire so that the entire assembly may be removed from the tire.
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