초록 ▼

An ultrasonic type bicycle driving motor includes an ultrasonic type rotation driving device to replace the silicon steel plates, windings and magnet that are used in the conventional bicycle driving motor. A rotary manual control is provided on the handlebar of the bicycle to allow a rider to contr

An ultrasonic type bicycle driving motor includes an ultrasonic type rotation driving device to replace the silicon steel plates, windings and magnet that are used in the conventional bicycle driving motor. A rotary manual control is provided on the handlebar of the bicycle to allow a rider to control the voltage and current supplied from a battery set to the motor, preferably in a manner similar to the handle throttle control adapted in a motorcycle, so that the rider may regulate the output torque and rotational speed of the motor as desired. The disclosed bicycle driving motor does not change the outside configuration of the bicycle and does not interfere with operation of the bicycle. Further, the disclosed bicycle driving motor is easy to install and suitable for bicycles of almost all designs. Maintenance is simple. The disclosed bicycle driving motor may be either mounted on the front wheel or the rear wheel, or on both the front and rear wheels of the bicycle.

대표청구항 ▼

[ What is claimed is:] [1.] A bicycle driving motor comprising a battery set for supplying electrical power and a control device for controlling the electrical power supplied from the battery set to the driving motor, the bicycle driving motor comprising an ultrasonic vibration type motor structure,

[ What is claimed is:] [1.] A bicycle driving motor comprising a battery set for supplying electrical power and a control device for controlling the electrical power supplied from the battery set to the driving motor, the bicycle driving motor comprising an ultrasonic vibration type motor structure, having an outer casing rotatably mounted on an axle of a wheel of the bicycle, defining therein a first interior space for receiving an inner casing fixed to the wheel axle and defining a second interior space, a thin flat disk like vibration means being disposed inside the second interior space and fixed to the inner casing with a flat piezoelectric means fixed on a first side thereof and a plurality of projections mounted on an opposite second side thereof and angularly equally spaced about the wheel axle, the piezoelectric means being in electrical connection with the battery set via the control device, a thin flat moving means being received within the second interior space and rotatable about the wheel axle, having rubbing material mounted thereon to be corresponding to the projections of the vibration means so that when the electrical power is supplied from the battery set to the piezoelectric means to cause an ultrasonic vibration on the vibration means, the projections of the vibration means are brought into contact with the rubbing material of the moving means, causing the moving means to continue rotating and thus driving the wheel to rotate with a mechanical coupling means.