Weight training machine

Abstract

A weight training machine includes a main frame, a lever carriage mechanism, an adjustment linkage and a stop mechanism. A lever carriage mechanism is pivotally connected to the main frame. The lever carriage mechanism includes a weight carrying portion adapted to carry at least one weight. An input mechanism is connected to the lever carriage mechanism. The adjustment linkage is connected between the lever carriage mechanism and the main frame and is configured to selectively adjust an arc of rotation of the weight carrying portion of the lever carriage mechanism about the main frame such that the weight carrying portion may selectively traverse each of a plurality of predefined strength curves in response to movement of the input mechanism by a user.

1 - 18 . (Cancelled)  
   
   
       19 . An arm press machine, comprising: 
 a main frame having a seat portion and an upstanding frame portion connected to the seat portion;    two spaced apart lever carriage mechanisms positioned on opposite sides of the arm press machine and each pivotally connected to the upstanding frame portion of the main frame, with the lever carriage mechanisms each having a weight carrying portion adapted to carry at least one weight;    an input mechanism connected to each of the lever carriage mechanisms;    an adjustment plate attached to the upstanding frame portion for each of the lever carriage mechanisms; and    an adjustment linkage pivotally connected to the lever carriage mechanisms and the respective adjustment plates attached to the upstanding frame portion, with each of the adjustment linkages configured to selectively adjust an arc of rotation of the weight carrying portion of the respective lever carriage mechanisms about the upstanding frame portion such that the weight carrying portion of the respective lever carriage mechanisms may each individually and selectively traverse a plurality of predefined strength curves in response to movement of the input mechanisms by a user.    
   
   
       20 . An arm curl machine, comprising: 
 a main frame having a seat portion and an upstanding frame portion connected to the seat portion;    a lever carriage mechanism pivotally connected to the upstanding frame portion, with the lever carriage mechanism having a weight carrying portion adapted to carry at least one weight;    a conversion linkage having a first end and a second end, with the first end pivotally connected to the lever carriage mechanism;    a handle grip lever pivotally connected to the upstanding frame portion and the second end of the conversion linkage; and    an adjustment linkage pivotally connected to the lever carriage mechanism and the upstanding frame portion and configured to selectively adjust an arc of rotation of the weight carrying portion of the lever carriage mechanism about the upstanding frame portion such that the weight carrying portion may selectively traverse each of a plurality of predefined strength curves in response to movement of the handle grip lever by a user,    wherein the conversion linkage is configured to convert pivotal movement of the handle grip lever into pivotal movement of the lever carriage mechanism such that the lever carriage mechanism pivots at a slower rate than the handle grip lever.    
   
   
       21 - 33 . (Cancelled)