초록 ▼

An apparatus and a method for performing a leg press exercise with counterbalance are disclosed. A user support, such as seat and a backrest, is mounted to a frame. A swing, such as a four-bar linkage, is mounted to the frame distal to the user support. A footplate is mounted to the four-bar linkage

An apparatus and a method for performing a leg press exercise with counterbalance are disclosed. A user support, such as seat and a backrest, is mounted to a frame. A swing, such as a four-bar linkage, is mounted to the frame distal to the user support. A footplate is mounted to the four-bar linkage. An arm with a counterweight is pivotally connected to the frame. A beam is rotatably mounted to the four-bar linkage and the arm. The footplate is adjusted relative to the seat by variation of the length of a connection between a pulley weight system and the four-bar linkage. The footplate rotates arcuately with respect to the frame during adjustment to accommodate users of various stature. The position of the counterweight changes during footplate adjustment in order to compensate for the changing effect of gravity on the footplate and the swing.

대표청구항 ▼

An apparatus for performing a leg press with counterbalance comprising: a frame; a user support mounted to the frame; a swing pivotally mounted to the frame distal to the user support; a footplate mounted to the swing; a first means for effecting a force on the swing operably engaged to the swing; a

An apparatus for performing a leg press with counterbalance comprising: a frame; a user support mounted to the frame; a swing pivotally mounted to the frame distal to the user support; a footplate mounted to the swing; a first means for effecting a force on the swing operably engaged to the swing; and a second means for effecting a force on the swing such that the second effecting force counterbalances the force of gravity on the swing as the swing pivots, wherein said second force effecting means comprises: an arm pivotally mounted to the frame; a beam pivotally mounted to the arm and pivotally mounted to the swing; and a weight mounted to said arm.