A weight stack isolator comprises an impact damper having a rail void therein configured to receive a guide rail of a selectorized machine. The impact damper is shaped to at least partially surround a section of the guide rail when received in the rail void, to secure the weight stack isolator to the selectorized machine. The weight stack isolator may include a slit extending from its outer perimeter to the rail void or the rail void may extend to the outer perimeter, to removably receive the guide rail in the rail void. The weight stack isolator can be positioned under a weight stack of the selectorized machine to absorb or dampen noise and vibration.

A gym tower which includes a base and a plurality of internal weights vertically stacked on the base. A frame is connected to the base and extends upward from the base to engage with the plurality of internal weights. A top plate is connected to the frame, so that the base and the plate enclose the plurality of internal weights within the frame. The tower also includes a spine is adapted to selectively engage the plurality of internal weights. A main pulley is connected to the top plate and a main cable is fed through the main pulley. The main cable is connectable to the spine at a first end and includes a connector device at a second end. The tower also includes a rod adapted to engage with the spine and to select an internal weight and is adapted to secure to external weights.

Exercise equipment comprises a resistance weight that is configured to oppose a given exercise motion via a cable system. An elongated cylindrical connector couples the resistance weight to the exercise equipment via the cable system. The elongated cylindrical connector comprises an externally threaded cylindrical surface that is engaged with a threaded recess on one of the exercise equipment and the resistance weight. A viewing window transversely extends into the threaded recess so that an operator can visually determine that the elongated cylindrical connector is fully engaged with the threaded recess when the externally threaded cylindrical surface is visible through said viewing window and so that an operator can visually determine that the elongated cylindrical connector is not fully engaged with the threaded recess when the externally threaded surface is not visible through said viewing window.

A resistance component configured for imparting a resistive force to a connected exercise component is provided. The device includes a frame pivotally supporting a selection arm which has a weight operatively connected to the selection arm by a pin arm. The weight imparts a force resisting rotation of the selection arm by a flexible member engaged with the exercise component. Adjusting the engagement of one end of the pin arm to an arched engagement path along the selection arm adjusts mechanical advantage and the resistive force.

A pulley rack for an exercise machine includes a support frame, an upright extending generally vertically within the support frame, a counterweight having one or more counterweight pulleys, the counterweight moveable in a vertical direction relative to the support frame, one or more guide pulleys mounted to the support frame, a cable end assembly mounted to the upright, and a pull cable having a fixed attachment end connected to the cable end assembly and a pullable end freely passing through the cable end assembly. The pull cable is routed through the cable end assembly, the counterweight pulleys, and guide pulleys such that a force exerted on the pullable end raises the counterweight. A section of the pull cable extends from the pullable end through the cable end assembly and downwardly to one of the guide pulleys mounted below the cable end assembly.

A permanently affixed and travelling selector pin, car and weight plate selection mechanism for use with physical fitness equipment is disclosed including a segmented track and/or cut out cavern within the plate body for the car to travel within in either vertically or horizontally in order to select a different weight plate or cumulatively, more or less weight for an exercise. The selector pin and car mechanism features a selector pin which is not removable from the car and is inserted through the car which is contained by the track and or plate body shape and into a throughbore in the weight plate in order to engage with the selector stem.

A measurement system for use in an exercise machine, which exercise machine comprises a lifting mechanism and an engaging member for selectively engaging a number of stacked weights to the lifting mechanism, the measurement system comprising a pair of cooperating members including a range meter and a reflector member, wherein one of the cooperating members is connected to the lifting mechanism and the other of the cooperating members is connected to the engaging member, wherein the range meter is directed to measure a distance to the reflector member to determine a distance which correlates to the weight of the selectively engaged weights.

An exercise machine includes a supporting frame, a weight provider which is supported by the supporting frame for providing different adjustable resistance levels, a body exercising system operatively coupled at the supporting frame to link with the weight provider, and two flexible handles. Each of the flexible handles includes an elongated flexible strip, a fastening member affixed to a first end of the flexible strip to form a coupling end of the flexible handle for detachably coupling at the upper body exercising system, and a handgrip affixed to an opposed second end of said flexible strip to form a handgrip end of the flexible handle for enabling an exerciser to perform free motion press and fly exercises.

A permanently affixed and travelling selector pin, car and weight plate selection mechanism for use with physical fitness equipment is disclosed including a segmented track and/or cut out cavern within the plate body for the car to travel within in either vertically or horizontally in order to select a different weight plate or cumulatively, more or less weight for an exercise. The selector pin and car mechanism features a selector pin which is not removable from the car and is inserted through the car which is contained by the track and or plate body shape and into a throughbore in the weight plate in order to engage with the selector stem.

A resistance component configured for imparting a resistive force to a connected exercise component is provided. The device includes a frame pivotally supporting a selection arm which has a weight operatively connected to the selection arm by a pin arm. The weight imparts a force resisting rotation of the selection arm by a flexible member engaged with the exercise component. Adjusting the engagement of one end of the pin arm to an arched engagement path along the selection arm adjusts mechanical advantage and the resistive force.