| 摘要 |
. A non-skid device for wheels, more particularly vehicle-wheels, comprising a central part (3), a plurality of arms (4-7) extending therefrom, a non-skid means (8) secured to the said arms, and tightening and retaining parts (9-13) serving to draw the non-skid device (1) onto the wheel-tread and to hold it there. In order to ensure that the tightening and retaining parts (9-13) do not wear prematurely and cannot be in-correctly hooked to the wheel, and that rotating movements of the non-skid means (8), in relation to the wheel, are not transferred to the said tightening and retaining parts. the latter are integral with a centre part (22), the said centre part, and holding part (17), being arranged between clamping parts (23,24) upon an axis (20), the said clamping parts, when installed, applying a pressure to the bearing parts (18,19) of the holding part (17), whereas the centre part (22) is mounted to rotate freely in relation to the said holding part, independently of the pressure exerted by the said clamping parts. |
