초록 ▼

A three wheel vehicle is provided with improved drive and handling characteristics, especially when turning. The three wheel vehicle includes a frame with a pair of front wheel and axle assemblies rotatably mounted on either side near the front of the frame. A rear fork, wheel and axle assembly is m

A three wheel vehicle is provided with improved drive and handling characteristics, especially when turning. The three wheel vehicle includes a frame with a pair of front wheel and axle assemblies rotatably mounted on either side near the front of the frame. A rear fork, wheel and axle assembly is mounted at the rear center of the frame which is rotatable and laterally pivotable for turning the vehicle. Steering means are provided for rotating the fork and pivoting the fork laterally in a direction opposite the direction of turning the vehicle. Preferred drive means provide two wheel positive forward drive and pedal actuated independent dual braking.

대표청구항 ▼

A three wheel vehicle comprising: a frame; a pair of front wheel and axle assemblies rotatably mounted on either side near the front of said frame; means on said frame for driving at least one of said front wheels; a strut member having its proximal end pivotably mounted in a generally horizontal pl

A three wheel vehicle comprising: a frame; a pair of front wheel and axle assemblies rotatably mounted on either side near the front of said frame; means on said frame for driving at least one of said front wheels; a strut member having its proximal end pivotably mounted in a generally horizontal plane at the rear center of said frame with its distal end extending behind said frame; a rear wheel fork rotatably mounted at the distal end of said strut member so as to be rotatable about a generally vertical axis; a rear wheel and axle assembly rotatably mounted in said fork; and steering means including means for rotating said fork about a generally vertical axis to turn said vehicle and means for simultaneously pivoting said strut member in a generally horizontal plane to displace said fork laterally with respect to the vehicle in a direction opposite the direction of turning the vehicle. A three wheel vehicle according to claim 1 wherein said driving means comprises: a rotatable pedal and drive sprocket assembly mounted at the front of said frame; a transverse axle rotatably mounted on said frame; a solid mounted sprocket on each end of said transverse axle; a free-wheeling sprocket assembly mounted on each front wheel and axle assembly in chain engagement alignment with said transverse axle end sprockets, respectively; a transmission assembly rotatably mounted on said frame having first, second and third solid mounted transmission sprockets, said first transmission sprocket being in chain engageable alignment with said drive sprocket; a first free-wheeling sprocket mounted on said transverse axle in the forward drive orientation in chain engageable alignment with said third transmission sprocket; a second free-wheeling sprocket mounted on said transverse axle in the reverse drive orientation in chain engageable alignment with said second transmission sprocket; and endless loop chains interconnecting each of said front wheel sprockets and said corresponding transverse axle end sprockets, said drive sprocket and said first transmission sprocket, said second transmission sprocket and said second free-wheeling sprocket, and said third transmission sprocket and said first free-wheeling sprocket.