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A gas-powered engine assembly is mounted on a carriage supported over the rear tire of a conventional bicycle. The assembly includes a small internal combustion engine supported on the carriage and a driven polyurethane friction wheel for propelling the rear bicycle tire. The assembly includes a com

A gas-powered engine assembly is mounted on a carriage supported over the rear tire of a conventional bicycle. The assembly includes a small internal combustion engine supported on the carriage and a driven polyurethane friction wheel for propelling the rear bicycle tire. The assembly includes a compression spring within the carriage tending to move the carriage and engine drive wheel out of engagement with the bicycle rear tire, and a cable and clutch arrangement for lowering the drive wheel into engagement with the bicycle rear tire. A horizontally moveable strut associated with the carriage is selectively manipulated by a manually operated clutch control, whereby the engine drive wheel is moved from an operative to a non-operative position. The output engine drive arrangement includes a multiple tooth cog located within a pocket formed in the drive wheel, for providing a flexible drive mechanism for accommodating possible defects such as a slightly out of round and/or unbalanced tire and the like. The polyurethane drive wheel is adjustably mounted over the tire to accommodate irregularities in the driven bicycle tire, and thus assure constant engagement with the bicycle tire. Brake and operator associated momentary switches for the engine are provided for safety.

대표청구항 ▼

A gas powered engine assembly for use on a wheeled vehicle having a frame and a tire equipped driving wheel, the engine assembly being mounted above the tire equipped wheel and comprising: an internal combustion engine; a strut member and an elongated carriage member for supporting said engine for p

A gas powered engine assembly for use on a wheeled vehicle having a frame and a tire equipped driving wheel, the engine assembly being mounted above the tire equipped wheel and comprising: an internal combustion engine; a strut member and an elongated carriage member for supporting said engine for propelling the wheeled vehicle; an axial member comprising a compression device pivotally mounted within said carriage member; said strut member being pivotally mounted at one end thereof to said axial member pivotally mounted on said carriage member; said elongated carriage member having means for pivotally mounting one end thereof to the frame of the wheeled vehicle; said elongated carriage member being positioned in a substantially horizontal plane that is parallel to said axial member during the operation of the multi-wheeled vehicle; a drive wheel mounted in a straddling relationship to the tire equipped driving wheel; means for operatively connecting said drive wheel with said engine for providing forward rotation to the tire equipped driving wheel; said compression device mounted within said carriage member for urging said engine and carriage member away from the tire equipped driving wheel; and cable actuated means for lowering said engine, carriage member and drive wheel against the tire equipped driving wheel, against the urging of said compression device; whereby the pivotal activation of said strut member together with said cable means cooperatively provide a vertical raising and lowering of said elongated carriage member, engine and engine drive wheel by an operator of the wheeled vehicle.