Composite fitness machine

Abstract

A composite fitness machine is provided which is readily adapted to serve as a single integrated device for simulating a walking, stair climbing, and cross country skiing exercise, which can be chosen by a user as desired. The device has right and left endless foot platforms each comprising a movable frame, a roller, and an endless belt. The platforms are each suspended from suspension frames provided on an upright frame affixed vertically to a base in order to simulate a cross-country skiing exercise with the platforms being suspended in a generally horizontal configuration by means of parallel links or triangular links. The platforms can also be arranged so that they are alternately pivoted to simulate a stair climbing exercise. Furthermore, the platforms can also be fixedly inclined slightly rearwards to be flush with each other in order to simulate a walking exercise.

What is claimed is:  
     
         1 . A composite fitness machine comprising 
 right and left endless foot platforms each comprising a movable frame, a roller, and an endless belt, front end portions of said right and left endless foot platforms being rotatably affixed to any one of a base and an upright frame provided vertically to the base, wherein    said right and left endless foot platforms are arranged so as to be alternately pivoted in order to simulate a stair climbing exercise, and    said right and left endless foot platforms are fixedly inclined slightly rearwards to be flush with each other in order to simulate a walking exercise.    
     
     
         2 . A composite fitness machine wherein 
 parallel links are each swingably affixed to an upright frame affixed vertically to a base, and right and left foot paddles are each attached to lower end portions of parallel links to simulate a cross-country skiing exercise, and    said right and left foot paddles are arranged so as to be alternately pivoted in order to simulate a stair climbing exercise.    
     
     
         3 . A composite fitness machine wherein 
 right and left endless foot platforms each comprising a movable frame, a roller, and an endless belt are each suspended from an upright frame affixed vertically to a base in order to simulate a cross-country skiing exercise with said right and left endless foot platforms being suspended in a generally horizontal configuration by means of parallel links or triangular links,    said right and left endless foot platforms are arranged so as to be alternately pivoted in order to simulate a stair climbing exercises, and    said right and left endless foot platforms are fixedly inclined slightly rearwards to be flush with each other in order to simulate a walking exercise.