Self-propulsion device for skateboards or the like

Details Self-propulsion device for skateboards or the like Self-propulsion device for skateboards or the like

A - Human Necessities

63

C

A63C 17/12 (2006.01) A63C 17/02 (2006.01)

Patent

CA 2044390

Self-Propulsion Device for Skateboards or the like Abstract A self-propulsion device of the type for use with a skateboard or the like comprising, a self-propulsion device which may be mounted, as a unit, for replacement to the existing axle of a conventional skateboard or the like, the self-propulsion device comprising an axle having at least one drive roller rotatably mounted adjacent one end thereof, said axle being non- rotatable and being fixedly secured to a skateboard, the axle mounting thereon at least one spool member which receives a plurality of turns of a pull cord for rotating said spool in one direction upon actuation of said pull cord, a roller member rotatably journaled adjacent the free end of said axle for receiving added rotational force upon actuation of said pull cord, clutch means disposed on said axle between said drive spool and said roller for selectively imparting rotational movement of said spool to said roller, and resilient spring means disposed around said axle adjacent said first drive spool for automatically retracting said pull cord when a user releases said pull cord.

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