Adjustable handle support of an exercise apparatus

Abstract

The invention relates to an adjustable handle support of an exercise apparatus having a main frame, two rocker arms on the main frame and two planks in connection with power source (e.g. motor, flywheel, hydraulic cylinder, etc.). The rocker arms are individually movable in a swing motion or jointly movable with the planks. An adjusting mechanism is interposed between the handle support and the rocker arm for adjusting the handle support to suitable angles for different operators.

1 . An adjustable handle support for an exercise apparatus having a main frame, two rocker arms on the main frame and two planks in connection with power source, wherein the rocker arms are individually movable in a swing motion or jointly movable with the planks, and wherein an adjusting mechanism is interposed between the handle support and the rocker arm for adjusting the handle support to a suitable angle for different operators.  
     
     
         2 . The adjustable handle support of  claim 1  wherein the adjusting mechanism comprising: 
 a) an adjusting knob having a stepped middle projection and a shaft, the shaft having a threaded head at the free end thereof;    b) a U-shaped frame rigidly sitting on the rocker arm, a pair of shaft holes being formed in the side walls of the U-shaped frame, a plurality of notches and teeth being provided on the semicircular top of each side wall, two locating holes being formed beneath each of the shaft holes of the U-shaped frame;    c) two clamping elements each having teeth on one of its sides around a shaft hole thereof, a series of uniformly spaced ridges being disposed on the rim of the other side of the clamping element, a notched part being formed adjacent to the ridges, at least one outwardly extending post being located on the outer side of the clamping element, whereby the clamping element are mounted on two side walls of the U-shaped frame in such a manner that the ridges are received in the notches and the posts are introduced into the locating holes so that both clamping elements are rigidly fixed in position on the two side walls of the U-shaped frame; and    d) a cubic body mounted on the end of the handle support opposing to the handle, two sides of the cubic body communicating with each other through a shaft hole, a series of uniformly spaced teeth around the shaft hole of the cubic body being formed on each of two sides of the cubic body,    whereby the handle support with the cubic body is clamped between the clamping elements on both sides of the U-shaped frame; then, the shaft of the adjusting knob is inserted through the shaft holes of the U-shaped frame, the clamping elements and the cubic body, and a nut is screwed on to the threaded head of the shaft to undergo the assembly of the adjusting mechanism.