Patent ID: 8701843

Claim:
A flywheel assembly for exercise devices, comprising: a flywheel made of magnetic induction material and including a cavity laterally and centrally defined therein; a first disc received in the cavity and including multiple first grooves radially defined therein and equally dividing the first disc into several areas; a second disc received in the cavity and securely attached to the first disc, the second disc including multiple second grooves radially defined therein, each second groove aligning with a corresponding one of first grooves in the first disc; a control plate rotatably sandwiched between the first disc and the second disc, the control plate including a series of curved grooves defined therein, each curved groove having a first end and a second end respectively corresponding to a center and a periphery of the control plate; multiple magnetic devices respectively and radially connected to the control plate, each magnetic device including a seat, an axle and a permanent magnet that is secured on the seat and corresponds to a periphery of the cavity for providing damping to the flywheel, the axle extending through the seat and a corresponding one of the curved grooves for mounting the seat to the control plate, at least one protrusion respectively formed on two opposite sides of the seat, each protrusion reciprocally moved along a corresponding one of the first grooves/second grooves; and a shaft centrally sequentially extending through the second disc, the first disc and the flywheel, the shaft laterally mounted onto the second disc such that the flywheel is rotatable relative to the first disc, the second disc and the magnetic devices; whereby the damping from the magnetic devices to the flywheel is adjusted when the control plate is rotated relative to the first disc and the second disc.