Elastic cord exercise machine with slack take-up mechanism

Abstract

A belly exercise healthy machine includes a kneeling box having five wheels inside the box wherein a front wheel engaged on a first axial rod, two left wheels superimposedly engaged on a second axial rod and two right wheels engaged on a third axial rod a roller assembly having a shaft, a positioning plate on the middle of the shaft, a pair of rollers abutting the lateral sides of the positioning plate, a pair of handle grips on two ends of the shaft and a pair corks engaged into two ends of the handle grips, an elastic rope has a first end connected to the positioning plate via a tube and a first ball headed adapter and a second end connected to a transverse linear slot via a second ball head adapter and a cup shaped retainer. The rope winds on the front wheel and then sequentially and alternately winds on the left wheels and the right wheels. An operator can knee on the kneeling box and pushes the roller assembly to and fro to exercise his belly.

I claim:  
     
         1 . A belly exercise healthy machine comprising: 
 a kneeling box having a base, a first, second and third axial rods projected upward from inner surface of the base, a stabilizing rod abutting the first axial rod, a back wall projected upward from back edge of the base including a transverse linear slot in the wall, a plurality of L-shaped slots spacedly formed in the wall communicating to the transverse linear slot, a front wheel rotatably engaged on the first axial rod, an upper left wheel and a lower left wheel superimposedly engaged on the second axial rod, an upper right wheel and a lower right wheel superimposedly engaged on the third axial rod, a cover covering the base and secured by a plurality of screws and a cushion disposed on top of the cover;    a roller assembly having a shaft, a positioning plate disposed to a middle portion of the shaft, a pair of rollers rotatably engaged on the shaft beside the positioning plate, a pair of handle grips secured to two ends of the shaft and a pair of cords engaged into two ends of the handle grips respectively;    a tube having one end secured to the positioning plate by screw and nut with a washer engaged therebetween, an upper opening in an upper periphery and a collar on the other end thereof;    a cup shaped retainer having a retaining plate secured to one end of the transverse linear slot in the wall of the kneeling box by screw and nut with a washer engaged therebetween;    an elastic rope having a first end secured to a first ball headed adapter which has a circular retaining plate engaged into the opening of the tube and retained by the collar, said rope first winding on the front wheel and then sequentially winding on the lower left wheel, the lower right wheel, the upper left wheel and the upper right wheel, a second end thereof secured to a second ball headed adapter which is retained in the cup shaped retainer.    
     
     
         2 . A belly exercise healthy machine comprising: 
 a kneeling box having a base, a first, second and third axial rods projected upward from inner surface of the base, a stabilizing rod abutting the first axial rod, a back wall projected upward from back edge of the base including a transverse linear slot in the wall, a plurality of L-shaped slots spacedly formed in the wall communicating to the transverse linear slot, a front wheel rotatably engaged on the first axial rod, an upper left wheel and a lower left wheel superimposedly engaged on the second axial rod, an upper right wheel and a lower right wheel superimposedly engaged on the third axial rod, a cover covering the base and secured by a plurality of screws and a cushion disposed on top of the cover;    a shaft having a positioning plate disposed to a middle portion thereof, a pair of handle grips secured to two ends of the shaft a pair of corks engaged into two ends of the handle grips respectively and a gripping means gripping to the middle portion of the shaft for controlling the positioning plate from lateral displacement;    a tube having one end secured to the positioning plate by screw and nut with a washer engaged therebetween, an upper opening in an upper periphery and a collar on the other end thereof;    a cup shaped retainer having a retaining plate secured to one end of the transverse linear slot in the wall of the kneeling box by screw and nut with a washer engaged therebetween;    an elastic rope having a first end secured to a first ball headed adapter which has a circular retaining plate engaged into the opening of the tube and retained by the collar, said rope first winding on the front wheel and then sequentially winding on the lower left wheel, the lower right wheel, the upper left wheel and the upper right wheel, a second end thereof secured to a second ball headed adapter which is retained in the cup shaped retainer.