Treadmill

Abstract

A treadmill comprising a subframe supported against the floor or a corresponding support surface, a frame supported on the subframe for rolls and a belt section running in an endless loop around the rolls, and means arranged between the subframe and frame to vertically shift the location of one end of the frame relative to the subframe. Support arms are arranged to the frame with first ends articulated to the frame and second ends arranged slidably into slide bars arranged to the subframe. Slide bars are formed of flat components fastened to the subframe, and sliding elements are arranged at second ends of the support arms and equipped with slots compatible with the flat components, whereby the slide bars are arranged to push into the slots, thus enabling the sliding of the sliding elements along the slide bar when the location of one end of the frame is shifted vertically relative to the subframe.

1 . A treadmill comprising a subframe supported against the floor or a corresponding support surface, a frame supported on the subframe for rolls and a belt section running in an endless loop around the rolls, and means arranged between the subframe and frame to vertically shift the location of one end of the frame relative to the subframe, whereby support arms are arranged to the frame with first ends articulated to the frame and second ends arranged slidably into slide bars arranged to the subframe, wherein the slide bars are formed of flat components fastened to the subframe, and sliding elements are arranged at second ends of the support arms and equipped with slots compatible with the flat components, whereby the slide bars are arranged to push into the slots, thus enabling the sliding of the sliding elements along the slide bars when the location of one end of the frame is shifted vertically relative to the subframe.  
   
   
       2 . A treadmill as claimed in  claim 1 , wherein the sliding elements are made into sleeves that are substantially round in cross-section and fastened directly to the ends of a pipe connecting the ends of the support arms.  
   
   
       3 . A treadmill as claimed in  claim 1  or  2 , wherein the second ends of the flat components are equipped with stopping elements arranged to prevent the sliding of the sliding element past the end of the flat component.  
   
   
       4 . A treadmill as claimed in  claim 3 , wherein the stopping element is a screw element.