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An exercise device having a frame, a seat and a back rest mounted on the frame and a weight stack having a plurality of movable weights. An elongated resistance convertor arm is rotatably mounted on the frame and a cable having one end connected to the weights in the weight stack and the other end c

An exercise device having a frame, a seat and a back rest mounted on the frame and a weight stack having a plurality of movable weights. An elongated resistance convertor arm is rotatably mounted on the frame and a cable having one end connected to the weights in the weight stack and the other end connected to the resistance converter arm. A movable contact member adapted to be moved by a user of the exercise device is rotatably mounted on the frame and an adjustment disk connects the contact member and the resistance convertor arm so that the relative angular position of the resistance convertor arm and the horizontal plane including the contact member can be varied to change the pattern of resistance to movement of the contact member.

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An exercise device including a frame, a seat mounted on said frame, a weight stack having a plurality of movable weights, an elongated resistance convertor arm in the form of a hollow tubular member having a first end and a second end, means rotatably mounting said first end of said resistance conve

An exercise device including a frame, a seat mounted on said frame, a weight stack having a plurality of movable weights, an elongated resistance convertor arm in the form of a hollow tubular member having a first end and a second end, means rotatably mounting said first end of said resistance convertor arm on said frame, cable means having a first end connected to weights in said weight stack and a second end connected to said second end of said resistance convertor arm, said resistance convertor arm including take up means located within said tubular member to constantly maintain said cable in a substantially taut condition between said second end of said resistance convertor arm and said weight stack regardless of the distance between said weight stack and said second end of said resistance convertor arm, a movable contact member adapted to be moved by a user of the exercise device, means for rotatably mounting said contact member on said frame and adjustment means for operatively connecting said contact member and said resistance convertor arm, said take up means including first pulley means adjacent to said first end of said tubular member and second pulley means adjacent to said second end of said tubular member, said second pulley means being mounted on adjustment means for varying the location of said second pulley means along the length of said tubular member, whereby the relative angular position of said second end of said resistance convertor arm and the horizontal plane including said contact member can be varied to change the pattern of the resistance to movement of said contact member, the second pulley means being adapted to be moved longitudinally along said resistance convertor arm according to the position of said resistance convertor arm relative to the plane including said contact member.