초록 ▼

An exercise apparatus combines a main support and a weight-lifting beam pivotally mounted thereon for movement about a horizontal axis, a weight-lifting bar adapted for releasable disposition of weights thereon and an adjustable support for pivotally supporting the weight-lifting bar on the main sup

An exercise apparatus combines a main support and a weight-lifting beam pivotally mounted thereon for movement about a horizontal axis, a weight-lifting bar adapted for releasable disposition of weights thereon and an adjustable support for pivotally supporting the weight-lifting bar on the main support including a member suspending the bar for movement in response to lifting and lowering of the weight-lifting beam member and an adjustable control for varying the distance of placement of the weight-lifting bar from the point of pivotal support. A hydraulic control circuit operates a hydraulic cylinder associated with the weight-lifting beam member to permit the athlete to closely and accurately control the degree of resistance imposed throughout each range of movement of an exercise. The control circuit can be remotely controlled by the athlete to impart either the same or varying amounts of resistance during a lifting and lowering sequence as well as to assist the athlete through a part or all of each sequence.

대표청구항 ▼

In exercise apparatus wherein there is provided a support frame for a first beam member which is pivotally mounted adjacent to one end thereof on said support frame for pivotal movement about a horizontal axis and said first beam member having a free end adapted to be grasped by a weight-lifter in l

In exercise apparatus wherein there is provided a support frame for a first beam member which is pivotally mounted adjacent to one end thereof on said support frame for pivotal movement about a horizontal axis and said first beam member having a free end adapted to be grasped by a weight-lifter in lifting and lowering a weight suspended from said first beam member, the improvement comprising: a second beam member pivotal on said support frame in vertically spaced relation to said first beam member and a weight-lifting bar on said second beam member including means for releasably supporting varying amounts of weights thereon; suspension means for suspending said second beam member from said first beam member for movement in response to lifting and lowering of said free end of said first beam member, and adjustable control means for varying the distance of said weight-lifting bar with respect to said pivotally connected end of said second beam member whereby to vary the effective weight of said first and second beam members, said adjustable control means including a rotatable screw member extending parallel to said second beam member, means for imparting linear advancement to said weight-lifting bar along said screw thread member in response to rotation of said screw member, and drive means for rotating said screw member; and resistance means for imparting a variable resistance to pivotal movement of said first and second beam members and said suspension means as they are lifted and lowered by a weight-lifter, said resistance means including a fluid cylinder and piston interposed between one of said first and second beam members and said support frame, and fluid control circuit means operative to regulate the pressure of fluid in said cylinder.