Exercise device

Abstract

An exercise device is provided which, when it is properly seated in a door frame further seats the device while avoiding any damage to the wall surfaces and/or door frame. Further, the device requires no fixed installation or hardware which would damage woodwork, wall surfaces, etc. The device includes a pair of support arm assemblies configured to extend through a door frame, a crossbar attached to the support arm assemblies and extending across a front side of the door frame, each support arm assembly including a movable clamp slidable under trigger control on a spar thereof, and a fixed shim on the spar distal end cooperating with the movable clamp to secure the device to the door frame.

We claim: 
     
         1 . An exercise device comprising:
 a telescoping, elongate hang bar, and   a pair of support arm assemblies which extend through a door frame so that the hang bar is supported in both vertical and horizontal planes in front of the door frame,   each support arm assembly including:
 a boss attached to the hang bar, 
 a main spar, a proximal end thereof being attached to the boss and extending toward the door frame at an angle from the hang bar, a distal end thereof terminating in a shim that includes a first pad on an upper surface thereof, 
 a clamp face configured to slide up and down the main spar under control of a trigger, the clamp face having a second pad on an underside surface thereof in facing relation to the first pad on the shim, the clamp face under control of the trigger to couple the first and second pads to rear and front parts of the door frame so as to secure the support arm assembly thereto. 
   
     
     
         2 . The device of  claim 1 , wherein the hang bar is canted at an angle downward from horizontal when the device is fully installed on the door frame. 
     
     
         3 . The device of  claim 1 , wherein a surface of the first and second pads are offset an angle greater than 90 degrees from the main spar. 
     
     
         4 . The device of  claim 1 , wherein the main spar is offset an angle greater than 90 degrees from the hang bar. 
     
     
         5 . The device of  claim 1 , wherein the first and second pads each having a beveled surface configured to mate with part of the door frame. 
     
     
         6 . The device of  claim 1 , wherein the telescoping hang bar includes:
 a central expansion bar compressible or expandable between adjacent coaxial end bar members, each end bar member including an internal expansion spring between an end cap and a respective end of the central expansion bar, and   each end of the central expansion bar including a channel in which rides a limit screw, the central expansion bar compressed against spring pressure as it slides within an end bar member, limited by travel due to the limit screw within its channel.   
     
     
         7 . The device of  claim 1 , wherein each support arm assembly is configured to clamp to a door frame having a width between 2 to 10 inches. 
     
     
         8 . The device of  claim 1 , wherein the hang bar is configured to accommodate doorway widths between 14 to 42 inches. 
     
     
         9 . An exercise device, comprising:
 a pair of support arm assemblies configured to extend through a door frame,   a crossbar attached to the support arm assemblies and extending across a front side of the door frame,   each support arm assembly including:
 a movable clamp slidable under trigger control on a spar thereof, and 
 a fixed shim on a distal end of the spar cooperating with the movable clamp to secure the device to the door frame. 
   
     
     
         10 . The device of  claim 9 , wherein actuation of the trigger overcomes an interlock enabling the movable clamp to move up the spar toward the crossbar, with release of the trigger automatically ratcheting the movable clamp down the spar toward the fixed shim to secure the movable clamp against a front part of the door frame and the fixed shim against a rear part of the door frame. 
     
     
         11 . The device of  claim 9 , wherein each of the movable clamp and fixed shim include a pad thereon in facing relation thereto that include a beveled top surface configured to mate with part of the door frame. 
     
     
         12 . The device of  claim 9 , wherein a top surface of each pad is offset an angle greater than 90 degrees from the spar, and the spar is offset an angle greater than 90 degrees from the crossbar. 
     
     
         13 . A method of installing an exercise device in a door frame, the exercise device having a telescoping crossbar coupled to a pair of support arm assemblies configured to extend through a door frame, each support arm assembly including a spar attached to the crossbar with a fixed shim at a distal end of the spar and movable clamp slidable on the spar under control of a trigger, the method comprising:
 actuating both triggers to slide both movable clamps up towards the crossbar,   inserting one shim between where a connected door meets a rear part of a door frame,   placing the other shim against the opposite rear part of the door frame,   leveling the device across the doorway while checking vertical alignment,   releasing both triggers, which automatically ratchet the movable clamps down their corresponding spars toward the shims to bear against front parts of the door frame.