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A hydraulically driven bicycle frame with two axle members coupled to the bicycle frame and front and rear wheels mounted on such axles for rotation about the axis of the respective axle and a pair of pedals mounted on a pedal drive shaft coupled to the bicycle frame for rotation for applying manual

A hydraulically driven bicycle frame with two axle members coupled to the bicycle frame and front and rear wheels mounted on such axles for rotation about the axis of the respective axle and a pair of pedals mounted on a pedal drive shaft coupled to the bicycle frame for rotation for applying manual power for operating the hydraulic system of the bicycle. The hydraulically driven bicycle has a hydraulic pump mechanism and a hydraulic drive mechanism. The hydraulic pump mechanism is operated by rotational movement of the pedal drive shaft. The hydraulic pump mechanism includes a pump housing having two sectional pump housing members that form a pump chamber between them. The two sectional pump housing members are capable of relative movement with respect to each other so that the pump chamber is capable of being varied in size for varying the flow of fluid through the pump mechanism. The hydraulic drive mechanism is driven by the fluid pump by the pump system and is coupled to one of the wheels of the bicycle for providing a rotational force to such wheel. The hydraulic drive mechanism includes a drive housing having two sectional drive housing members which form a drive chamber between them. The two sectional drive members are capable of relative movement with respect to each other so that the drive chamber is capable of being varied in size for varying the flow of fluid through the hydraulic drive mechanism. The hydraulic pump mechanism and the hydraulic drive mechanism are interconnected by fluid circulating tubes so that a closed hydraulic system is constructed on the bicycle.

대표청구항 ▼

A hydraulically driven bicycle comprising: a bicycle frame; two axle members coupled to said bicycle frame; front and rear wheels, each of said wheels being mounted on one of said axle members for rotation about the axis of the respective said axle member; a pair of pedal members mounted on a pedal

A hydraulically driven bicycle comprising: a bicycle frame; two axle members coupled to said bicycle frame; front and rear wheels, each of said wheels being mounted on one of said axle members for rotation about the axis of the respective said axle member; a pair of pedal members mounted on a pedal drive shaft coupled to said bicycle frame for rotation for applying manual power for operating said bicycle; a hydraulic pump means operated by rotational movement of said pedal drive shaft, said hydraulic pump means including a pump housing having a pump chamber capable of being varied in size for varying the flow of fluid through said pump chamber, and said pedal drive shaft being coupled to said rotatable pumping means for driving said rotatable pumping means; power enchancing means for increasing the size of said pump chamber responsive to an increase in the pressure of the fluid in said pump chamber; a hydraulic drive means for driving one of said wheels, said hydraulic drive means including a drive chamber, a rotatable driving means arranged to be rotated as fluid is circulated through said drive chamber, and an output drive shaft coupled to and rotated by said hydraulic driving means as fluid is circulated through said drive chamber; and a plurality of fluid circulating tubes for coupling the output of said pump means to the input of said hydraulic drive means and the output of said hydraulic drive means to the input of said pump means so that fluid is circulated through the hydraulic system.