Skateboard

Details Skateboard Skateboard

1984-04-09

1986-06-17

Mitchell, David M.

Land vehicles

Skates

With propulsion means driven by occupant

280 112, 280 8704A, 188 74, 192 12B, 192 17R, A63C 100, A63C 1714

Patent

active

045952094

ABSTRACT:
A manually powered skateboard which includes a transmission wheel mounted on a rear wheel axle and coaxial with a rear hub having a rear wheel mounted thereon. The transmission wheel is connected to the rear hub through a one-way clutch. A drive wheel mounted on a drive shaft which is disposed under a platform to drive the transmission wheel, and is parallel to the rear wheel axle. A first flexible tension element is wound on the drive wheel and pullable by a user to rotate the drive wheel and in turn the transmission wheel. The first spring is acting on the drive wheel to wind up the tension element. A brake cam cooperates with the drive wheel through a clutch to selectively rotate with the drive wheel to effect the brake action to the rim of the rear wheel. The clutch is actuated by a brake pedal disposed on the front region of the platform. Thus the braking action is effected only by clutching the drive wheel to the brake cam. The concurrent operations of pulling the tension element to drive the wheel and pressing on the brake pedal to brake the skateboard enable the user to maintain his balance when the skateboard is abruptly braked.

REFERENCES:
patent: 1628559 (1927-05-01), Showers

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