Exercise device

Abstract

An exercise device has two handles between which a flywheel is suspended on a cord. By twisting the cord and repeatedly pulling on the handles, the flywheel is caused to rotate about its axis of rotation. The cord passes through two passages formed in the flywheel. The latter is a solid body which is pierced only by the passages. The passages run obliquely inclined with respect to the axis of rotation. The friction between the cord and the wall(s) of the passages is increased when the handles are pulled apart and, as a result, the flywheel is prevented from sliding along the rope, for instance downwardly when the exercise device is used vertically.

1 . An exercise device, comprising:
 two grip elements;   a rotation body disposed between said two grip elements, said rotation body being a flywheel formed as a massive disk element of substantially solid material and having two through-passages formed therein;   a cord connected to said two grip elements, said cord extending between said two grip elements and through said through-passages in said rotation body;   said through-passages running at least partially with an oblique inclination relative to a rotation axis of said rotation body and wherein, after said cord has been twisted, said rotation body is caused to rotate about the rotation axis when said cord is repeatedly pulled; and   wherein, due to the oblique inclination of said through-passages relative to the rotation axis and a resulting non-parallel orientation of said through-passages to a tension force between said two grip elements, said cord is pressed against a wall of said through-passages such that a friction between said cord and the wall is increased.   
     
     
         2 . The exercise device according to  claim 1 , wherein said through-passages extend obliquely inclined with respect to the rotation axis along an entire length thereof. 
     
     
         3 . The exercise device according to  claim 1 , wherein said through-passages are rectilinear. 
     
     
         4 . The exercise device according to  claim 1 , wherein said through-passages intersect each other. 
     
     
         5 . The exercise device according to  claim 4 , wherein subregions of said cord that are guided through said through-passages likewise intersect each other. 
     
     
         6 . The exercise device according to  claim 1 , wherein said through-passages are oriented at an angle of inclination with respect to the rotation axis lying in a range from 15° to 60°. 
     
     
         7 . The exercise device according to  claim 6 , wherein said angle of inclination with respect to the rotation axis lies in a range from 30° to 50°. 
     
     
         8 . The exercise device according to  claim 1 , wherein said through-passages have subsidiary sections that are oriented differently with respect to the rotation axis. 
     
     
         9 . The exercise device according to  claim 8 , wherein said subsidiary sections are oriented at a non-parallel angle to each other. 
     
     
         10 . The exercise device according to  claim 1 , wherein said through-passages have a diameter amounting to between 1.3 and 3 times a diameter of said cord. 
     
     
         11 . The exercise device according to  claim 1 , wherein said through-passages are formed with insertion bevels at each end thereof.