| 主权项 |
1. An anti-skid device for a tire that is fixed to a tire of a vehicle; the device comprising:
a fixed plate that is fixed to a wheel of a tire, has a cylindrical nut-type fastening portion protruding toward the wheel of the tire at a center portion and having a thread on the inner side, and has a plurality of fixing holes for fixing to the wheel on the surface; a support plate having a disc body having an insertion hole at the center portion and a plurality of coupling plates protruding radially around the outer side of the body; anti-skid arms that have a fastening portion coupled to the coupling plates and a contact portion having a plurality of spikes on the outer surface that bends at an end of the fastening portion and comes in contact with a road surface when being fastened to the tire; and a locking plate that protrudes on the bottom of a disc body, has a bolt-type fastening, portion fastened to the nut-type fastening portion, and that is fixed with the body of the support plate between the bottom of the body and the fixed plate, wherein threads for fastening the locking plate to the Fixed plate by turning the locking plate in a direction, in which the tire is rotated to drive a vehicle forward are formed on the nut-type fastening portion and the bolt-type fastening portion. |
