Door-frame mounted exercise bar

Abstract

An exercise device, including a telescoping door-frame-mountable exercise bar having a first and second end, each end having an end-cap, each of said end-caps having an outward facing frictional surface, and at least one of said end-caps containing an interior cam mechanism. Said cam mechanism including a cam wedge with a pivot end and a curved end, wherein said pivot end is pivotably secured to one end of the bar at a pivot point, and said curved end is directed outwards from said pivot point towards the interior side of the flat frictional surface of the end-cap. Said cam wedge having a radial length measured by the distance between the cam wedge's pivot point and its curved end, wherein said radial length is shortest along the central horizontal axis of the cam wedge and increases in length as the radial axis is angled upwards or downwards along the curved end on the cam wedge.

1 . A door-frame-mountable exercise device, including a bar having a first and second end, each end having an end-cap, each of said end-caps having an outward facing frictional surface, and at least one of said end-caps containing an interior cam mechanism; said cam mechanism including a cam wedge with a pivot end and a curved end, wherein said pivot end is pivotably secured to one end of the bar at a pivot point, and said curved end is directed outwards from said pivot point towards the interior side of the flat frictional surface of the end-cap; and said cam wedge having a radial length measured by the distance between said pivot point and said curved end, wherein said radial length is shortest along the central horizontal axis of the cam wedge and increases in length as the radial axis is angled upwards or downwards along the curved end of the cam wedge. 
     
     
         2 . A door-frame-mountable exercise device as set forth in  claim 1  wherein the bar is a telescoping bar, said telescoping bar including at least one external bar, one internal bar and an is internal compression spring; wherein said internal spring has a first and second end, said first end of the internal spring is enclosed within the internal bar and the second end of the internal spring extends beyond the end of the internal bar; said external bar having at least one open end, said open end telescopingly slidable over the internal bar such that when the internal bar slides within said open end of the external bar the internal spring is compressed, shortening the length of the bar. 
     
     
         3 . A door-frame-mountable exercise device as set forth in  claim 2  further comprising at least one lever mechanism secured at one end of the bar; said lever mechanism comprising a rotatable lever and a piston, said rotatable lever being secured to one end of the bar at a pivot point and comprising an external handle and an internal end, said internal end abutting an internal piston; said internal piston having a first and second end, wherein said first end abuts the internal end of the lever and said second end engages the internal compression spring within the internal bar, such that when the external handle of the lever is rotated the internal end of the lever is forced towards the center of the bar and engages said internal piston which in turn further compresses the internal compression spring.