Patent ID: 6117049
Filing Date: 2000-09-12
Classification: A63B

Abstract:
Apparatus for adjusting the weight applied by the user of exercise equipment, comprising(a) a plurality of stacked weight elements, each of said elements containing a threaded through-bore, said threaded through-bores being vertically aligned;(b) means for selectively connecting said weight elements to the exercise equipment, said connecting means comprising a screw having an axis aligned with said through-bores and a diameter corresponding with the diameter of said through-bores, said screw being rotated to pass through said stack of weight elements to threadably engage each weight as said screw passes therethrough, whereby when said screw is rotated in a first direction, said screw progressively passes through a selected number of weight elements in accordance with the desired weight to be connected with the exercise equipment, and when said screw is rotated in an opposite direction, said screw is progressively withdrawn from a selected number of weight elements to disconnect a selected number of weight elements from the exercise equipment;(c) a motor for rotating said screw; and(d) a journal bearing for connecting said screw with said motor, whereby said screw is prevented from traversing through said motor as said screw rotates.