Pulley machine counter

Abstract

The pulley machine counter is a weight lifting machine repetition counter that may be easily installed on, and removed from, a weight lifting machine. The pulley machine counter has a counting mechanism that includes a pushrod that increments the repetition count each time the pushrod is depressed. When mounted on a weight lifting machine, each complete weight lifting repetition causes the weights to contact and depress the pushrod, thereby incrementing the repetition count. When the pulley machine counter is properly positioned at the maximum vertical travel of the weights during a complete lift, the pulley machine counter will count only complete repetitions. A clamp, used to hold the pulley machine counter in place, has a friction-enhancing member to facilitate proper positioning.

I claim:  
     
         1 . A pulley machine counter, comprising: 
 a housing, the housing having a viewing window formed therein;    a counting assembly contained within said housing, the counting assembly having: 
 a number displaying means for displaying a count, the count being visible through said viewing window; and  
 an incrementing means for incrementing the count; and  
   a slidable clamp assembly disposed on said housing.    
     
     
         2 . The pulley machine counter according to  claim 1 , wherein said slidable clamp assembly comprises: 
 a first semi-cylindrical clamp collar;    a second semi-cylindrical clamp collar pivotally attached to said first semi-cylindrical clamp collar, the second clamp collar having an internally threaded bore defined therein; and    a thumbscrew disposed in said first semi-cylindrical clamp collar, the thumbscrew releasably engaging the bore.    
     
     
         3 . The pulley machine counter according to  claim 2 , wherein said slidable clamp assembly further comprises a friction-enhancing member disposed on an inner surface of said first and second semi-cylindrical clamp collars.  
     
     
         4 . The pulley machine counter according to  claim 1 , wherein said number displaying means comprises: 
 a shaft; and    a counting wheel disposed on said shaft, the counting wheel bearing visual indicia of integers in a counting sequence.    
     
     
         5 . The pulley machine counter according to  claim 4 , wherein said incrementing means further comprises: 
 a ratchet wheel disposed on said shaft, the ratchet wheel having a plurality of ratchet teeth formed uniformly around the ratchet wheel;    a pushrod having a ratchet driving end and a pushing end, the pushrod being disposed in a tangential relation to said ratchet wheel, the ratchet driving end being engageable with said ratchet teeth; and    bias means for biasing said pushrod away from said ratchet wheel;    wherein pushing said pushrod against said bias means causes said ratchet driving end to engage with one of said ratchet teeth causing said ratchet wheel, said shaft, and said counting wheel to turn a single increment.    
     
     
         6 . The pulley machine counter according to  claim 5 , wherein said incrementing means further comprises a reset knob connected with said shaft, the reset knob returning said counting wheel to a starting position.