Elliptical exercise machine

Abstract

An exercise machine includes a pair of slide members having front ends connected to a crank unit for turning along with the crank unit and rear ends linearly slidable on a support. A pair of reciprocating members are mounted on the support for reciprocating forward and backward. A pair of foot support members each have a front pivotal end and a rear free end. The front pivotal end of each foot support member is connected pivotally to one of the slide members between the front and rear ends of the slide member. Each foot support member is connected to one of the reciprocating members rearwardly of the front pivotal end.

What is claimed is: 
     
         1 . An exercise machine comprising:
 a support;   a pulley mounted on said support;   a crank unit connected to said pulley for rotation along with said pulley;   a pair of slide members having front ends connected to said crank unit for turning along with said crank unit and rear ends slidable on said support; and   a pair of foot elevating assemblies respectively coupled to the top sides of said slide members via a pair of pivot members for decreasing the bending force acted on said pivot members, said foot elevating assemblies including a pair of reciprocating members mounted movably on said support for reciprocating forward and backward and a pair of foot support members, wherein each of said reciprocating members has an extending portion respectively located rearwardly said pivot members and extended inwardly from said reciprocating members to support said foot support members.   
     
     
         2 . The exercise machine as claimed in  claim 1 , wherein said extending portion has a first fastening pin. 
     
     
         3 . The exercise machine as claimed in  claim 2 , said extending portion further comprising a second fastening pin spaced apart longitudinally from the first fastening pin. 
     
     
         4 . The exercise machine as claimed in  claim 1 , wherein each of said foot support members has a front end respectively connected to said pivot members. 
     
     
         5 . The exercise machine as claimed in  claim 1 , wherein said support includes a base and an upstanding frame extending upward from a front end of said base, said pulley being mounted on said base adjacent said upstanding frame. 
     
     
         6 . The exercise machine as claimed in  claim 4 , further comprising a pair of handles mounted pivotally on said upstanding frame, and a pair of swinging arms mounted pivotally on said upstanding frame and connected respectively to said handles for swinging simultaneously with said handles, each of said swinging arms having a top end connected to a corresponding one of said handles and a bottom end connected to a front end of one of said reciprocating members. 
     
     
         7 . An exercise machine comprising:
 a support;   a pulley mounted on said support;   a crank unit connected to said pulley for rotation along with said pulley;   a pair of slide members having front ends connected to said crank unit for turning along with said crank unit and rear ends slidable on said support; and   a pair of foot elevating assemblies respectively coupled to the top sides of said slide members via a pair of pivot members for decreasing the bending force acted on said pivot members.   
     
     
         8 . The exercise machine as claimed in  claim 7 , wherein said foot elevating assemblies including a pair of reciprocating members mounted movably on said support for reciprocating forward and backward and a pair of foot support members, said reciprocating members each having an extending portion respectively located rearwardly said pivot members and extended inwardly from said reciprocating members to support said foot support members. 
     
     
         9 . The exercise machine as claimed in  claim 7 , wherein each of said support members has a front end respectively connected to said pivot members.