Patent ID: 7485076

Claim:
A weight-training machine having an independent power generating function, which includes a plurality of stacks moving up and down by means of a pair of guides mounted vertically, a button unit disposed at a front center of the stacks and having the number of solenoid buttons corresponding to the number of the stacks and buttons inserted into insert holes of the stacks, and a wire guided by pulleys mounted to a frame, wherein a solenoid unit having the solenoid buttons is separated from the button unit so that the solenoid buttons are installed to a position adjacent to heads of the buttons, wherein the buttons are moved forward and backward electrically or manually, wherein a pair of generators having a rod shape are installed at both rear sides of the stacks so as to be parallel to each other vertically with a predetermined distance, and wherein a power supply is installed below the generators so that the power supply is electrically connected to the generators and the solenoid unit.