Patent ID: 7918323

Claim:
A magnetic resistor control assembly for a body training machine, comprising: a main shaft installed to a base of a body training machine; a rotor having an inner hole, and a magnetic isolation ring being installed to a wall of the inner hole; one rear end of the rotor having a bottom; an axial hole being formed in the bottom of the rotor; and a bearing being fixed to the axial hole; a stator formed by an inner disk, and an outer disk; an outer diameter of the stator being slightly smaller than an inner diameter of the magnetic isolation ring; an adjusting unit; the inner disk and outer disk clamping an adjusting unit; two positioning holes being formed on the inner disk near an outer edge; the adjusting unit having magnetic guide iron sheets which are pivoted to the positioning holes of the inner disk by using positioning pins; the pivoting portions of the magnetic guide iron sheets being positioning ends; each of the magnetic guide iron sheet being installed with a permanent magnet; another end of each magnetic guide iron sheet having a swingable arm end; a distal end of each arm end being extended inwards with a fixing rod which extends inwards; a distal end of each fixing rod being installed with a roller; a sliding block set having guide tracks at a left and a right side thereof; an outer lateral wall of each guide track having a track trench; a lower middle portion of the sliding block set having a round hole; the roller being installed and rollable in the guide track; and the retaining rod of the roller being placed within the track trench; and a controller installed at an outer side of the stator; the controller having a transfer pin which displace in the straight grooves and a power wire for power transfer; when the transfer pin drives the sliding block set to move in the straight grooves, the gap between the permanent magnets and the magnetic isolation ring is changed.