Abstract: A vehicle wheel having claws which automatically extend whenever the wheel strikes an obstacle and automatically retract when the obstacle is overcome is disclosed. The wheel also includes a ratchet type clutch mechanism which permits the wheel to be manually turned while the wheel drive shaft is fixed, thereby preventing damage. The wheel includes a spindle having at least one claw pivotally attached to the spindle. A wheel body is fitted over the spindle having one aperture for each claw attached to its front face and a circle of teeth on its back face. A hub having at least one radially extending arm is attached to the shaft or axle which turns the wheel. A tooth is provided on each arm to engage the teeth on the spindle. A wheel body is fitted over the spindle having one aperture for each claw attached to the spindle which apertures are sized and positioned so that a claw may pass through the aperture when the spindle is rotated relative to the body.

Abstract: A miniature self-powered four wheel drive vehicle is disclosed which will climb grades of about 50.degree.. The vehicle is powered by a small electric motor positioned over the front wheel axle and having its center of mass in front of the axle, and a AA battery located behind and perpendicular to the motor. A propeller shaft extends the length of the vehicle and has a crown gear which engages a pinion on the motor drive shaft and two worm gears each of which engages a spur gear on the front and rear axles. Traction and climbing characteristics are enhanced by overscale tires having highly pronounced treads. An optional 1.5 light bulb and light distributor simulates headlights.