Abstract: The present invention relates to a self-generating wrist ball which includes a ball-shaped housing, a revolution ring, a flywheel and a generating and lighting mini-module. The ball-shaped housing has a plurality of protruding arched pieces to enhance the light-concentrating effect and to increase the stability when the fingers hold the wrist ball. The generating and lighting mini-module includes at least two rotor aggregates within flywheel and at least two stator aggregates corresponding to said rotor aggregates being fixed on the revolution ring. The wrist ball is self-generating in operational state by means of the impulse excitation created at the rotational moment of the wrist ball. In addition, the effect of magnetic field line can be enhanced by means of magnets and magnetic metal plates of the rotor aggregates and the stator aggregates. Furthermore, the same magnetic poles of both magnets are arranged in opposite way to prevent the flywheel from interference in rotation.

Abstract: The present invention relates to a self-generating wrist ball which includes a ball-shaped housing, a revolution ring, a flywheel and a generating and lighting mini-module. The ball-shaped housing has a plurality of protruding arched pieces to enhance the light-concentrating effect and to increase the stability when the fingers hold the wrist ball. The generating and lighting mini-module includes at least two rotor aggregates within flywheel and at least two stator aggregates corresponding to said rotor aggregates being fixed on the revolution ring. The wrist ball is self-generating in operational state by means of the impulse excitation created at the rotational moment of the wrist ball. In addition, the effect of magnetic field line can be enhanced by means of magnets and magnetic metal plates of the rotor aggregates and the stator aggregates. Furthermore, the same magnetic poles of both magnets are arranged in opposite way to prevent the flywheel from interference in rotation.

Abstract: An exercise wheel includes a housing, a wheel base equipped with two main wheels and a front balance wheel and mounted in the housing, a slide slidably mounted in a longitudinal track in the wheel base, a torsional spring disposed between the slide and the longitudinal track for providing the slide with a recovery force enabling the slide to return to its original position, and a belt connected between a wheel axle, which is rotated with the main wheels to take up/let off the belt when the user reciprocate the exercise wheel on the floor, and the slide.