초록 ▼

A weight lifting machine provides an instantaneous variable resistance, which can be adjusted manually during a workout routine or through a program, which has been selected by the user prior the workout routine. The weight lifting machine includes a pair of guides and a stack of weights which are s

A weight lifting machine provides an instantaneous variable resistance, which can be adjusted manually during a workout routine or through a program, which has been selected by the user prior the workout routine. The weight lifting machine includes a pair of guides and a stack of weights which are slidably mounted on the guides and movable along the guides from a rest position to an elevated position. The weight lifting machine also includes a selector member and a lift member. Each of the weights includes an opening to receive the selector member. The openings are aligned to define a transverse passage through the stack of weights to allow the selector member to couple to each of the weights in the stack. The selector member includes a plurality of couplers which are adapted to instantaneously couple to and decouple from respective weights of the stack of weights. The lift member, which is coupled to the selector member, is adapted to permit a user of the weight lifting machine to pull and thereby raise the weights coupled to the selector member from their respective rest positions to their respective elevated positions. In preferred form, the couplers comprise electromagnetic couplers, with each of the electromagnetic couplers being adapted to be selectively energized and de-energized for coupling to and decoupling from a respective weight in the stack of weights.

대표청구항 ▼

[ I claim:] [1.]1. A weight lifting machine comprising:a stack of weights, each of said weights having an opening, said openings being aligned to define a transverse passage through said stack of weights;a pair of guides, each of said weights being slidably mounted on said pair of guides and being m

[ I claim:] [1.]1. A weight lifting machine comprising:a stack of weights, each of said weights having an opening, said openings being aligned to define a transverse passage through said stack of weights;a pair of guides, each of said weights being slidably mounted on said pair of guides and being movable along said pair of guides from a rest position to an elevated position;a selector member, said selector member having a downwardly depending member, said downwardly depending member supporting a plurality of couplers therein, said downwardly depending member having a transverse passage facing side, each of said couplers comprising an electromagnetic coupler having a transverse passage facing side, each of said electromagnetic couplers being positioned in said downwardly depending member such that said transverse passage facing side of said electromagnetic couplers are positioned in said transverse passage facing side of said downwardly depending member whereby each of said electromagnetic couplers has a single exposed side, and each of said electromagnetic couplers being adapted to be selectively energized or de-energized for magnetically coupling said single exposed side to or decoupling said single exposed side from a respective weight in said stack of weights; andone of a lift cable and a lift bar coupled to said selector member, said one of a lift cable and a lift bar being adapted to permit a user of said weight lifting machine to raise said weights coupled to said selector member from its respective rest position to its respective elevated position.