408 results about "Weight lifting" patented technology

A weight lifting power cage for use by a weight lifter includes a frame assembly including a pair of side frames and a rear lateral frame interconnecting the pair of side frames. A carriage is carried by the side frames and is movable simultaneously vertically and front to back. The carriage retains a weight bar mount for retaining a weight bar spanning between each side frame. The weight bar is movable by the carriage vertically and front to back. The movable carriage also carries a pair of vertical weight rack bars. An engagement mechanism enables the weight lifter to rack the weight bar from a weight lifting position without stepping forward or backward.

A weight lifting device includes a handle having two end segments, a number of weight members each having a slot to receive either of the end segments of the handle, and an anchor plate rotatably attached to each of the weight members and having an opening selectively aligned with the slot of the weight member, to selectively receive either of the end segments of the handle. The anchor plate is rotatable relative to the weight member to offset the opening of the anchor plate from the slot of the weight member, and to selectively anchor the weight member to the handle. The desired number of weight members may thus be selectively attached to the handle.

A weight plate for fitness weightlifting that provides an ergonomic gripping device is described. The ergonomic weight plate comprises a disc-shaped member having a center through-hole for positioning the weight plate onto a barbell. The disc-shaped member further comprises at least one ergonomic gripping cutout located around the periphery of the disc-shaped member. The gripping cutouts are adapted to receive human fingers to facilitate lifting of the weight plate. The ergonomic gripping cutouts each have an outer periphery and an inner periphery. A portion of the outer periphery of the cutouts is convex to properly conform the gripping cutout to the shape of a human hand. In a second embodiment the gripping cutout has a grip enhancement strip located on the inner surface of the outer periphery of the gripping cutouts.

A weight training device for providing substantially uniform resistance throughout the range of motion of each of a variety of weight lifting exercises. Upstanding front and rear stanchions are attached to front and rear portions of a base, respectively. In a first embodiment, the front stanchion is rigidly attached to the base, the rear stanchion is pivotally attached to the base, and a lever arm assembly is pivotally attached to the front stanchion and includes a dolly cage attached to the rear stanchion that forces the rear stanchion to pivot toward and away from the front stanchion as the assembly is pivoted in a vertical plane by a weight trainee against the resistance of weight suspended from the assembly. In a second embodiment, the front stanchion is mounted for reciprocal, vertical motion on a rod attached to the base. A plurality of weight plates are disposed below the front stanchion in vertical, stacked relation, any or all of which can be suspended from the front stanchion by insertion of a stack pin through any one of the plates and into an aperture in a stack pin rod suspended from the front stanchion. A lever arm assembly has a front portion pivotally attached to the front stanchion and a rear portion pivotally attached to the rear, pivoting stanchion, such that when a trainee pivots the assembly in a vertical plane against the resistance of the weights, the rear stanchion pivots toward the front stanchion.

Weight lifting simulator apparatus includes a primary pneumatic cylinder providing the principal resistance for simulating weight lifting exercise with at least one secondary cylinder in free fluid interconnection with the primary cylinder whereby constant and balanced loading is achieved, with provisions for dynamic simulation of weight inertia effect, and control thereof, as in lifting a real weight. The primary and the secondary cylinders are associated with a guideway, the primary cylinder being fixed to the guideway and the secondary cylinder being slidable relative to the guideway and pivotable relative to the piston rod of the primary cylinder. Variation of the securement position of the primary cylinder on the guideway is available and valving is provided in the fluid interconnection.

A weight lifting power cage for use by a weight lifter includes a floor frame assembly including a pair of side floor frames, a front lateral floor frame member, and a rear lateral floor member. A carriage is carried by the side floor frames and is movable simultaneously vertically and front to back. The carriage retains a weight bar mount for retaining a weight bar spanning between each side frame. The weight bar is movable by the carriage vertically and front to back. The movable carriage also carries a pair of vertical weight rack bars. An engagement mechanism enables the weight lifter to rack the weight bar from a weight lifting position without stepping forward or backward.