초록 ▼

An auxiliary traction device for vehicle wheels to enhance their traction and braking characteristics under ice and snow conditions. The device comprises a frame which mounts to the outer side of the wheel, connected thereto preferably by the conventional lug bolts so as to rotate in unison with the

An auxiliary traction device for vehicle wheels to enhance their traction and braking characteristics under ice and snow conditions. The device comprises a frame which mounts to the outer side of the wheel, connected thereto preferably by the conventional lug bolts so as to rotate in unison with the wheel. Traction members are movably mounted on the frame so as to be selectively extensible into road-engaging positions and retractable when not needed. When extended, the traction members engage the road resiliently so as not to interfere with the normal cushioning action of the tire. Extension and retraction of the traction members may be accomplished either by manual actuation, or by automatic actuation from the driver\s station.

대표청구항 ▼

In a vehicular, road-engaging wheel mounted on a vehicle for rotation about an axis of rotation, an auxiliary traction device comprising: (a) a frame mounted on said wheel for rotation in unison therewith; (b) a plurality of road-engaging traction members movably mounted on said frame so as to be se

In a vehicular, road-engaging wheel mounted on a vehicle for rotation about an axis of rotation, an auxiliary traction device comprising: (a) a frame mounted on said wheel for rotation in unison therewith; (b) a plurality of road-engaging traction members movably mounted on said frame so as to be selectively extensible and retractable radially with respect to said axis of rotation between extended road-engaging positions and retracted disengaged positions; and (c) biasing means for forcibly urging said traction members toward their respective extended road-engaging positions and permitting them to yield retractably, separately from one another, from said extended positions; (d) said biasing means comprising a plurality of individual springs, each spring being interposed operatively between at least a pair of said traction members for forcibly urging both of said pair of traction members simultaneously toward their respective extended road-engaging positions.