Skateboard
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 17, 1986
Issued Date -
N/A
app pub date -
Apr 9, 1984
filing date -
Sep 13, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
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