Tire traction device
OwnerJames K. C. Wonginventor
Life of this patent
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Abstract
Traction is provided for automotive vehicles stuck in snow, mud, and the like by a device applied over the outer face of the slipping driven vehicle wheel and having J-shaped traction fingers draped over the tire of the wheel and fixedly clamped on the tire by merely swinging a lever. The device has a mounting plate for overlying the conventional wheel disk or hubcap, three J-shaped fingers pivoted to the center of the plate and radially guided in 120.degree. spaced apart relation at the periphery of the plate with the cups of the fingers receiving the tire and presenting outer tread surfaces which will bite into the slippery road bed. One of the fingers is retracted on its pivot by a lever or handle effective to clamp all three of the fingers on the tire.
Claims10
A traction device for application to driven wheels which comprises a mounting base adapted to be positioned over the outer face of the wheel to extend radially beyond the wheel rim, a stud mounted on and projecting outwardly from the central portion of said base, a plurality of superimposed J-shaped fingers pivotally stacked on said stud and radiating from said base having cups for receiving the periphery of the wheel, road gripping tread surfaces on said cups, means accommodating radial movement of one of said fingers on said stud, and means on said base capable of retracting said one of said fingers to clamp all of the fingers on the periphery of the wheel.
A device for biting into roadbeds to apply traction to spinning driven rubber tire equipped wheels which comprises a base plate adapted to be positioned over the outer face of a wheel and extend radially beyond the wheel rim over the outer face of the rubber tire, a stack of three superimposed J-shaped fingers pivoted on said base plate and extending radially therefrom, finger guides on said base plate at the outer periphery thereof positioning the three fingers in 120.degree. spaced apart relation to hook over the periphery of a wheel, means on one of said fingers accommodating radial shifting thereof, a crank on said base plate engaging said one of said fingers and swingable on the base plate to forcibly retract said one finger for clamping all of the fingers on the wheel, and road gripping surfaces on the portions of the fingers which hook over the wheel periphery.
Dependencies are inferred from the claim text.