Direction-reversing device and exercise equipment

Abstract

A direction-reversing device includes a frame, two side wheels, a reverse wheel module, a flexible member and a tension adjusting mechanism. The side wheels are pivotally disposed on two side of the frame, respectively. The reverse wheel module disposed at the frame includes two reverse wheels. The reverse wheels are coaxially disposed to the frame and perpendicular to the side wheels. The flexible member is wound around the side wheels and the reverse wheels. The tension adjusting mechanism disposed at the frame includes at least one fastener. The fastener connecting the reverse wheel module to the frame is for changing a relative position between the frame and the reverse wheel module. Therefore, a tension of the flexible member is changed accordingly.

What is claimed is: 
     
         1 . A direction-reversing device, comprising:
 a frame;   two side wheels pivotally disposed on two side of the frame, respectively;   a reverse wheel module disposed at the frame, and comprising:
 two reverse wheels coaxially disposed to the frame, the reverse wheels being perpendicular to the side wheels; 
   a flexible member wound around the side wheels and the reverse wheels; and   a tension adjusting mechanism disposed at the frame, comprising:
 at least one fastener connecting the reverse wheel module to the frame; 
   wherein the fastener is for changing a relative position between the frame and the reverse wheel module, and a tension of the flexible member is changed accordingly.   
     
     
         2 . The direction-reversing device of  claim 1 , wherein the frame comprises at least one fastening hole, and the reverse wheel module further comprises:
 an axle connecting the reverse wheels,, the axle being disposed inside the frame and comprising at least one threading hole corresponding to the fastening hole;   wherein the fastener is engaged with the threading hole through the fastening hole.   
     
     
         3 . The direction-reversing device of  claim 2  wherein the axle further comprises at least one pin hole, the frame further comprises at least one slotted hole, and the tension adjusting mechanism further comprises at least one screw coupled with the pin hole and the slotted hole. 
     
     
         4 . The direction-reversing device of  claim 3 , wherein the tension adjusting mechanism further comprises:
 a bolt inserting into the frame to push against the axle.   
     
     
         5 . The direction-reversing device of  claim 1 , further comprising:
 two secure structures, each of the secure structures being disposed at each of the side wheels for restricting the flexible member between the each of the side wheels and thereof.   
     
     
         6 . The direction-reversing device of  claim 5 , wherein each of the secure structures comprises a pad to abut against the flexible member. 
     
     
         7 . The direction-reversing device of  claim 6 , wherein the pad of each of the secure structures comprises a rough surface towards the flexible member. 
     
     
         8 . The direction-revering device of  claim 1 , wherein each of the side wheels comprises a groove, and the flexible member is disposed in the groove. 
     
     
         9 . The direction-reversing device of  claim 1 , wherein the flexible member is a belt, a cable, a wire or a cord. 
     
     
         10 . An exercise equipment, comprising:
 a supporting frame;   a direction-reversing device disposed on the supporting frame, comprising:
 a frame; 
 two side wheels pivotally disposed on two side of the frame, respectively; 
 a reverse wheel module disposed at the frame, comprising:
 two reverse wheels coaxially disposed to the frame, the reverse wheels being perpendicular to the side wheels; 
 
 a flexible member wound around the side wheels and the reverse wheels; and 
 a tension adjusting mechanism disposed at the frame, comprising:
 at least one fastener connecting the reverse wheel module to the frame, the fastener being for changing a relative position between the frame and the reverse wheel module, and a tension of the flexible member being changed accordingly; and 
 
   two lever sets connected to the two side wheels of the direction-reversing device, respectively, the two lever sets linked with the direction-reversing device for swinging reciprocately and reversely.   
     
     
         11 . The exercise equipment of  claim 10 , wherein the frame comprises at least one fastening hole, and the reverse wheel module further comprises:
 an axle connecting the reverse wheel, the axle being disposed inside the frame and comprising at least one threading hole corresponding to the fastening hole;   wherein the fastener is engaged with the threading hole through the fastening hole.   
     
     
         12 . The exercise equipment of  claim 11 , wherein the axle further comprises at least one pin hole, the frame further comprises at least one slotted hole, and the tension adjusting mechanism further comprises at least one screw coupled with the pin hole and the slotted hole. 
     
     
         13 . The exercise equipment of  claim 11 , wherein the tension adjusting mechanism further comprises:
 a bolt inserting into the frame to push against the axle.   
     
     
         14 . The exercise equipment of  claim 10 , further comprising:
 two secure structures, each of the secure structures being disposed at each of the side wheels for restricting the flexible member between the each of the side wheels and thereof.   
     
     
         15 . The exercise equipment of  claim 14 , wherein each of the secure structures comprises a pad to abut against the flexible member. 
     
     
         16 . The exercise equipment of  claim 10 , wherein each of the side wheels comprises a groove, and the flexible member is disposed in the groove. 
     
     
         17 . The exercise equipment of  claim 10 , wherein each of the lever sets comprise:
 a lever for connecting one of the side wheels; and   a pedal pivotally connected to the lever.