초록 ▼

A wheeled vehicle comprises a frame having a steerable front wheel having an axle affixed to a front portion of said frame, and a hub rear wheel having an axle affixed to a rear portion of said frame. A unitary power module is used as a propulsion system, which includes a target sprocket and a mount

A wheeled vehicle comprises a frame having a steerable front wheel having an axle affixed to a front portion of said frame, and a hub rear wheel having an axle affixed to a rear portion of said frame. A unitary power module is used as a propulsion system, which includes a target sprocket and a mounting frame, with the target sprocket comprising a disk shaped assembly having an center opening to allow the unitary member to be placed about the wheel axle. The target sprocket mates to the hub (or axle) of either of the wheels to enable target sprocket to be concentrically attached to the wheel by engagement with the wheel by securing elements. The mounting frame may be aligned with and rotatably attached to the target sprocket to allow for aligned rotation of the target sprocket about the wheel axle. The mounting frame may be attached to the unitary member by a bearing or the like and has an opening to receive an electric motor having a pinion sprocket to enable the pinion sprocket to engage the target sprocket to rotate the rear wheel upon application by the rider of propulsion controls. A free wheel clutch may be provided on the unitary power module or target sprocket to allow the wheel to rotate faster than the motor without motor drag.

대표청구항 ▼

A wheeled vehicle comprises a frame having a steerable front wheel having an axle affixed to a front portion of said frame, and a hub rear wheel having an axle affixed to a rear portion of said frame. A unitary power module is used as a propulsion system, which includes a target sprocket and a mount

A wheeled vehicle comprises a frame having a steerable front wheel having an axle affixed to a front portion of said frame, and a hub rear wheel having an axle affixed to a rear portion of said frame. A unitary power module is used as a propulsion system, which includes a target sprocket and a mounting frame, with the target sprocket comprising a disk shaped assembly having an center opening to allow the unitary member to be placed about the wheel axle. The target sprocket mates to the hub (or axle) of either of the wheels to enable target sprocket to be concentrically attached to the wheel by engagement with the wheel by securing elements. The mounting frame may be aligned with and rotatably attached to the target sprocket to allow for aligned rotation of the target sprocket about the wheel axle. The mounting frame may be attached to the unitary member by a bearing or the like and has an opening to receive an electric motor having a pinion sprocket to enable the pinion sprocket to engage the target sprocket to rotate the rear wheel upon application by the rider of propulsion controls. A free wheel clutch may be provided on the unitary power module or target sprocket to allow the wheel to rotate faster than the motor without motor drag. 03313, 19710900, Arblaster, 128/275; US-4668215, 19870500, Allgood, 604/236; US-5255676, 19931000, Russo, 128/205.24; US-5343857, 19940900, Schneider et al., 128/200.23; US-5349950, 19940900, Ulrich et al., 128/207.14; US-5433195, 19950700, Kee et al., 128/207.14; US-5598840, 19970200, Iund et al., 128/202.27; US-5735271, 19980400, Lorenzen et al., 128/200.26; US-5765557, 19980600, Warters, 128/207.14; US-5919174, 19990700, Hanson, 251/320; US-6070582, 20000600, Kee, 128/207.16; US-6227197, 20010500, Fitzgerald, 128/200.26; US-6227200, 20010500, Crump et al., 128/207.14