Tension systems and methods of use

摘要

Machines, apparatuses, systems and methods for providing adjustable tension to a cable system using a pivotally mounted leverage mechanism that employs an adjustably positionable weight. Embodiments are used in exercise and other muscle strengthening devices, and may include an electronic control system for monitoring, recording a user's progress, and for altering or releasing tension to the cable system based on feedback from the user. Embodiments include a user interface for inputting information for particular exercises or workouts, as well as outputting/downloading information following exercises or workouts. Other embodiments allow adjustment to the starting point of the lifting bar so that such machines may be used for bench presses, squats, cleans or curls.

主权项

1. A cable tension system comprising:
a) a pivotally mounted lever mechanism; b) a weight movably engaged with said lever mechanism; c) a first motion imparting mechanism for moving said weight with respect to said lever mechanism; d) a cable attached to a lifting bar; e) a cable carriage moveably engaged with said lever mechanism, wherein said cable is routed around a first routing point on said lever mechanism and a second routing point on said cable carriage; and f) a second motion imparting mechanism for moving said cable carriage with respect to said first routing point on said lever mechanism, wherein moving said cable carriage with respect to said first routing point adjusts a length of said cable between said lever mechanism and said lifting bar wherein said lever mechanism comprises a first track, and said weight comprises a plurality of rotatable wheels for traveling on said first track, said lever mechanism comprises a second track, and said cable carriage comprises wheels engaged with said second track.