Treadle training machine with an oil pressure unit

Abstract

A treadle training machine with an oil pressure unit comprises a body: two treadles installed on the body; an oil pressure unit installed between the body and the two treadles for generating resistance force to the treadles. The oil pressure unit includes an oil pressure rod having a head at one end thereof and a closing rod portion at another end thereof; an outer sleeve located between the head and the closing rod portion and formed by molding injection; the outer sleeve being non-transparent; a plurality of slots being formed on the outer sleeve; the outer sleeve enclosing the oil pressure rod. The outer sleeve having the slots provides a beautiful outlook and has a function of heat dissipation. The outer sleeve is colored.

What is claimed is: 
     
         1 . A treadle training machine with an oil pressure unit comprising:
 a body;   two treadles installed on the body;   an oil pressure unit installed between the body and the two treadles for generating resistance force to the treadles;   the oil pressure unit including:
 an oil pressure rod having a head at one end thereof and a closing rod portion at another end thereof; 
 an outer sleeve located between the head and the closing rod portion and formed by molding injection; the outer sleeve being non-transparent; a plurality of slots being formed on the outer sleeve; the outer sleeve enclosing the oil pressure rod; wherein the outer sleeve having the slots provides a beautiful outlook and has a function of heat dissipation. 
   
     
     
         2 . The treadle training machine with an oil pressure unit as claimed in  claim 1 , wherein the outer sleeve is colored.