Patent Publication Number: US-6220989-B1

Title: Jogging exerciser

Description:
BACKGROUND OF THE INVENTION 
     The present invention relates to a jogging exerciser, and more particularly to such a jogging exerciser which enables the user to simulate the exercises of jogging, bicycle riding and skiing. 
     A variety of exercising machines have been developed for exercising the muscles of the legs, and have appeared on the market. These exercising machines include step exercisers, climbing exercisers, stationary bicycles, etc. However, these exercising apparatus are designed to simulate only one particular exercising action. 
     SUMMARY OF THE INVENTION 
     The present invention has been accomplished to provide a jogging exerciser which enables the user to simulate the exercises of jogging, bicycle riding and skiing. According to one embodiment of the present invention, the jogging exerciser comprises a base having an upright, two handles connected to two friction wheels at opposite sides on the upright, a locating pin for fixing the handles to the upright to stop the handles from turning with the friction wheels, a crank revolvably supported on the upright, a driving wheel turned with the crank, a flywheel coupled to the driving wheel, and two parallel sliding bars slidably supported on a rack at the rear side of the base and having pivoted to both ends of the crank. Because the sliding bars are slidably supported on the rollers of the roller holders with respective front ends pivoted to the crank, the sliding bars are alternatively turned with the cranks and moved back and force when the user steps on the foot plate with the legs alternatively. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a perspective view of a jogging exerciser according to the present invention. 
     FIG. 2 is similar to FIG. 1 but showing the protective cover removed, the locating pin disconnected from the handles and the upright. 
     FIG. 3 shows the jogging exerciser operated. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to FIGS. 1 and 2, a jogging exerciser in accordance with the present invention comprises an I-base, which is comprised of two transverse bars  2  and a longitudinal bar  1  connected between the transverse bars  2 . An upright  6  is raised from the front end of the longitudinal bar  1 . A counter  10  is mounted on the upright  6  at the top. Two friction wheels  7  are bilaterally mounted on the upright  6  at a suitable elevation. Two handles  8  are respectively fastened to the friction wheels  7 , each having a top end terminating in a hand grip  9 . A locating pin  19  is provided for inserting into a respective pin hole on the handles and a through hole on the upright  6  to fix the handles  8  to the upright  6 , and to stop the handles  8  from movement relative to the upright  6 . A rack  3  is mounted on one transverse bar  2  remote from the upright  6 . Two roller holders  4  are bilaterally provided at the rack  3 . The roller holders  4  each hold a roller  5 . Two sliding bars  13  are respectively supported on the rollers  5 . Each sliding bar  13  has a front end mounted with a transverse barrel  12 . A crank  11  is revolvably supported on a bearing in a transverse hole on the upright  6 , having two opposite ends respectively coupled to the transverse barrels  12  at the front ends of the sliding bars  13 . A driving wheel  16  is fixedly mounted around the crank  11  at one side of the upright  6 . Two foot plates  14  are respectively mounted on the sliding bars  13  adjacent to the transverse barrels  12 . A flywheel  15  is revolvably supported on the longitudinal bar  1  and coupled to the driving wheel  15  by a transmission belt. An adjustment knob  18  is provided at the upright  6  for adjusting the damping force of a friction belt to the driving wheel  16 . Furthermore, a protective cover  17  is fastened to the upright  6  and the longitudinal bar  1  and covered around the driving wheel  16  and the flywheel  15 . 
     Referring to FIG. 3, when the locating pins  19  are removed from the handles  8  and the upright  6 , the handles  8  can then be alternatively turned with the hands. When turning the handles  8  with the hands, the foot plates  14  are alternatively moved back and forth and turned with the legs. 
     While only one embodiment of the present invention has been shown and described, it will be understood that the drawings are designed for purposes of illustration only, and are not intended as a definition of the limits and scope of the invention disclosed.