Anti-slip device for fitness expander

Abstract

A fitness expander includes at least two through holes positioned on the two handles respectively, a metal fastening ring is arranged on the through hole, a hollow hose with two anti-slip devices on each of the distal ends thereof is inserted through the metal fastening rings. The present invention features on that the anti-slip device is a soft and hollow cone on whose circumference a plurality of thin and elastic rings are mounted at regular clearance. While the hollow hose is pulled, the elastic rings of the anti-slip device are deformable for expanding the contact surface of the hollow hose with the fastening ring so as to avoid the abrasion of the hollow hose by metal fastening rings.

What is claimed is:  
     
         1 . A fitness expander comprising 
 two handles,    at least two through holes are arranged on the two handles respectively, corresponding to each other,    a metal fastening ring is positioned on each of the through hole,    a hollow hose is inserted through the through holes with an anti-slip device mounted on each of the two distal ends of the hollow hose; the hollow hose is expanded by the anti-slip device and is leaning on the metal fastening ring for being fixed on the handle; wherein the present invention is characterized in that:    the anti-slip device is a soft and hollow cone with a plurality thin and elastic rings mounted on the circumference thereof; while the hollow hose is pulled, the thin and elastic rings of the anti-slip device deform and contact the inner surface of the hollow hose in a plane so as to avoid the worn-out of the hollow hose caused by the metal fastening ring.    
     
     
         2 . The fitness expander as claimed in  claim 1 , wherein the cone of the anti-slip device having two small cones arranged in opposite position.