Abstract: An electric generating device for a training machine is disclosed. The device has at least an electric generator, a trestle, and an electrical storage device electrically connectable to the generator. In one embodiment there are two electric generators that are mounted spaced apart in which the rotors and stators of the generators are symmetrically arranged. The rotor and stator of each side is separately connected to the corresponding rotor and stator of the other side through a rotor bushing and a bobbin. Each rotor is a hollow cylindrical disk that has multiple permanent magnets mounted on the inner surface of the disk and arrayed in circle. Each stator has multiple sets of generator coils and is mounted inside the disk and the permanent magnets. The stators of both sides are connected to a control plate through a connecting wire. The control plate has a series/parallel circuit, has a rectifier and has a voltage regulation circuit. The trestle has an adjusting knob.

Abstract: An eccentric vibrating amplitude device of a vibrator includes an eccentric unit on at least one end of an extended shaft of a reversible motor and includes a balance block located at an innermost location of the eccentric unit mounted on a shaft and an eccentric block located at the outermost location. on the shaft. The balance block and eccentric block include an eccentric round hole block and eccentric blocks for receiving the shaft. When mounted on the extended shaft of a reversible motor, the rotational angle between the balance block and the eccentric block and the torque on the motor selectively changes when the motor rotates in a positive or a negative direction. Hence there is provided a selectable or variable vibrating amplitude intensity.