Exercising device for simulating skateboarding

Abstract

An exercising device has a base, a sliding bracket and a supporting board. The base has a bottom frame, two curved rails and a guiding device. The curved rails are mounted on the bottom frame and are parallel to each other. The guiding device is mounted on the bottom frame between the curved rails. The sliding bracket is slidably mounted on the base and has a cross bar, two side frames and a driving device. The side frames are attached respectively to two ends of the cross bar and are slidably and respectively attached to the curved rails. The driving device is mounted between the side frames and the curved rails to drive the sliding bracket to slide along the curved rails. The supporting board is connected to the guiding device to make the support board being mounted on the sliding bracket in a swinging manner.

1 . An exercising device comprising:
 a base comprising
 a bottom frame; 
 two curved rails mounted on the bottom frame and parallel to each other; and 
 a guiding device mounted on the bottom frame between the curved rails; 
   a sliding bracket slidably mounted on the base and comprising
 a cross bar having two ends; 
 two side frames attached respectively to the ends of the cross bar and slidably and respectively attached to the curved rails of the base; and 
 a driving device mounted between the side frames and the curved rails to drive the sliding bracket to slide along the curved rails; and 
   a supporting board rotatably mounted on the sliding bracket and connected to the guiding device on the base to make the support board being mounted on the sliding bracket in a swinging manner.   
     
     
         2 . The exercising device as claimed in  claim 1 , wherein the driving device comprises
 multiple rollers rotatably attached to the side frames and arranged in pairs, wherein the rollers of each pair abut respectively with a top and a bottom of one of the curved rails; and   a motor attached to one of the curved rails and connected to and driving one of the rollers.   
     
     
         3 . The exercising device as claimed in  claim 2 , wherein the curved rails are convex curved rails. 
     
     
         4 . The exercising device as claimed in  claim 2 , wherein the curved rails are concave curved rails. 
     
     
         5 . The exercising device as claimed in  claim 3 , wherein the guiding device comprises
 a guiding frame inclinedly mounted on the bottom frame and having a top and an oval guiding channel defined in the top of the guiding frame; and   a connecting bar attached to a bottom of the supporting board and slidably extending into the oval guiding channel in the guiding frame.   
     
     
         6 . The exercising device as claimed in  claim 4 , wherein the guiding device comprises
 a guiding frame inclinedly mounted on the bottom frame and having a top and an oval guiding channel defined in the top of the guiding frame; and   a connecting bar attached to a bottom of the supporting board and having a free end slidably held in the oval guiding channel in the guiding frame.   
     
     
         7 . The exercising device as claimed in  claim 5 , wherein the cross bar of the sliding bracket has a sleeve; and
 the supporting board has a mounting post mounted on the bottom of the supporting board and rotatably extending into the sleeve on the cross bar.   
     
     
         8 . The exercising device as claimed in  claim 6 , wherein the cross bar of the sliding bracket has a sleeve; and
 the supporting board has a mounting post mounted on the bottom of the supporting board and rotatably extending into the sleeve on the cross bar.   
     
     
         9 . The exercising device as claimed in  claim 7 , wherein the supporting board further comprises an I-shaped post holder attached to the bottom of the supporting board;
 the mounting post is attached to a middle of the post holder; and   the connecting bar is attached to one end of the post holder.   
     
     
         10 . The exercising device as claimed in  claim 8 , wherein the supporting board further comprises an I-shaped post holder attached to the bottom of the supporting board;
 the mounting post is attached to a middle of the post holder; and   the connecting bar is attached to one end of the post holder.   
     
     
         11 . The exercising device as claimed in  claim 3 , wherein the guiding device comprises
 a guiding bar inclinedly mounted on the bottom frame and having a top;   a lever rotatably attached to the top of the guiding bar and having a free end;   a guiding tube secured on the free end of the lever; and   a connecting bar attached to a bottom of the supporting board and rotatably extending into the guiding tube.   
     
     
         12 . The exercising device as claimed in  claim 4 , wherein the guiding device comprises
 a guiding bar inclinedly mounted on the bottom frame and having a top;   a lever rotatably attached to the top of the guiding bar and having a free end;   a guiding tube secured on the free end of the lever; and   a connecting bar attached to a bottom of the supporting board and rotatably extending into the guiding tube.   
     
     
         13 . The exercising device as claimed in  claim 11 , wherein the cross bar of the sliding bracket has a sleeve; and
 the supporting board has a mounting post mounted on the bottom of the supporting board and rotatably extending into the sleeve on the cross bar.   
     
     
         14 . The exercising device as claimed in  claim 12 , wherein the cross bar of the sliding bracket has a sleeve; and
 the supporting board has a mounting post mounted on the bottom of the supporting board and rotatably extending into the sleeve on the cross bar.   
     
     
         15 . The exercising device as claimed in  claim 13 , wherein the supporting board further comprises an I-shaped post holder attached to the bottom of the supporting board;
 the mounting post is attached to a middle of the post holder; and   the connecting bar is attached to one end of the post holder.   
     
     
         16 . The exercising device as claimed in  claim 14 , wherein the supporting board further comprises an I-shaped post holder attached to the bottom of the supporting board;
 the mounting post is attached to a middle of the post holder; and   the connecting bar is attached to one end of the post holder.   
     
     
         17 . The exercising device as claimed in  claim 1 , wherein the guiding device comprises
 a guiding frame inclinedly mounted on the bottom frame and having a top and an oval guiding channel defined in the top of the guiding frame; and   a connecting bar attached to a bottom of the supporting board and having a free end slidably held in the oval guiding channel in the guiding frame.   
     
     
         18 . The exercising device as claimed in  claim 17 , wherein the supporting board further comprises an I-shaped post holder attached to the bottom of the supporting board; and
 the connecting bar is attached to one end of the post holder.   
     
     
         19 . The exercising device as claimed in  claim 1 , wherein the guiding device comprises
 a guiding bar inclinedly mounted on the bottom frame and having a top;   a lever rotatably attached to the top of the guiding bar and having a free end;   a guiding tube secured on the free end of the lever; and   a connecting bar attached to a bottom of the supporting board and rotatably extending into the guiding tube.   
     
     
         20 . The exercising device as claimed in  claim 1 , wherein the cross bar of the sliding bracket has a sleeve; and
 the supporting board has a mounting post mounted on the bottom of the supporting board and rotatably extending into the sleeve on the cross bar.