Pedal exercising vehicle

Abstract

A exercising vehicle includes a base frame, two crank shafts rotatably mounted on the base frame and each having two bent end portions and two straight distal ends each connected to the respective bent end portion, two pedals each mounted between the two crank shafts and each having two end portions each pivotally mounted on the respective bent end portion of the respective crank shaft, and a plurality of wheels each secured on the respective straight distal end of the respective crank shaft. Thus, the user can step the two pedals to rotate the two crank shafts simultaneously to rotate the wheels so as to move the exercising vehicle, thereby obtaining an exercising effect.

1 . An exercising vehicle, comprising:
 a base frame;   two crank shafts rotatably mounted on the base frame and each having two opposite bent end portions and two straight distal ends each connected to the respective bent end portion;   two pedals each mounted between the two crank shafts and each having two opposite end portions each pivotally mounted on the respective bent end portion of the respective crank shaft;   a plurality of wheels each secured on the respective straight distal end of the respective crank shaft to rotate therewith.   
     
     
         2 . The exercising vehicle in accordance with  claim 1 , wherein each of the pedals is located at the same positions of the two crank shafts respectively. 
     
     
         3 . The exercising vehicle in accordance with  claim 2 , wherein one of the two pedals is pivotally mounted on and located at one bent end portion of each of the crank shafts, and the other pedal is pivotally mounted on and located at the other bent end portion of each of the crank shafts so that when one of the two pedals is movable downward, the other pedal is movable upward. 
     
     
         4 . The exercising vehicle in accordance with  claim 1 , wherein the two crank shafts are rotatable simultaneously by connection of the pedals. 
     
     
         5 . The exercising vehicle in accordance with  claim 1 , wherein each of the two crank shafts is a symmetrically arranged bent tube. 
     
     
         6 . The exercising vehicle in accordance with  claim 1 , wherein the two bent end portions of each of the two crank shafts are parallel with each other and directed toward two different directions from the straight portion. 
     
     
         7 . The exercising vehicle in accordance with  claim 1 , further comprising two cylinders each mounted between the base frame and the respective pedal. 
     
     
         8 . The exercising vehicle in accordance with  claim 1 , further comprising a manipulation device mounted on a front portion of the base frame. 
     
     
         9 . The exercising vehicle in accordance with  claim 1 , further comprising a seat assembly mounted on a rear portion of the base frame. 
     
     
         10 . The exercising vehicle in accordance with  claim 1 , wherein the base frame includes a longitudinal support rack, a mounting tube mounted on an upward and forward extending front end of the longitudinal support rack, a transverse support rack mounted on a rear end of the longitudinal support rack, two locking tubes each mounted in the transverse support rack and each having a locking hole, two side support racks mounted on two opposite ends of the transverse support rack, and a transverse support plate mounted between the side support racks and extended through the longitudinal support rack. 
     
     
         11 . The exercising vehicle in accordance with  claim 10 , further comprising two cylinders each mounted on the support plate of the base frame and having a top end provided with a retractable cylinder shaft having a top end provided with a roller located under the respective pedal so that when each of the pedals is movable to press the roller of the respective cylinder, the respective cylinder provides a damping force to each of the pedals. 
     
     
         12 . The exercising vehicle in accordance with  claim 10 , wherein each of the two crank shafts has a middle portion formed with a straight portion located between the two bent end portions, and the base frame further includes two upright support posts mounted on the longitudinal support rack and the transverse support rack respectively and each having a top face formed with a receiving groove to receive the straight portion of the respective crank shaft, and two top covers each secured on the respective support post and each having a bottom face formed with a receiving groove to receive the straight portion of the respective crank shaft, so that the straight portion of each of the two crank shafts is rotatably mounted between the respective support post and the respective top cover. 
     
     
         13 . The exercising vehicle in accordance with  claim 10 , further comprising a manipulation device mounted on a front portion of the base frame and including an upright steering post rotatably mounted on the mounting tube of the base frame, a transverse handlebar secured on an upper portion of the steering post, and a front wheel rotatably mounted on a lower portion of the steering post. 
     
     
         14 . The exercising vehicle in accordance with  claim 10 , further comprising a seat assembly mounted on a rear portion of the base frame and including a support bracket, and a seat mounted on the support bracket. 
     
     
         15 . The exercising vehicle in accordance with  claim 14 , wherein the support bracket of the seat assembly is substantially inverted U-shaped and has two bent end portions each inserted into the respective locking tube of the base frame and each having an inside provided with an elastic snapping member having a protruding locking boss detachably locked in the locking hole of the respective locking tube. 
     
     
         16 . The exercising vehicle in accordance with  claim 1 , wherein each of the pedals has a bottom face provided with two protruding blocks each formed with a mounting groove to receive the respective bent end portion of the respective crank shaft, and the exercising device further comprises a plurality of retaining members each secured on the respective protruding block of the respective pedal and each formed with a mounting groove to receive the respective bent end portion of the respective crank shaft, so that each of the bent end portions of each of the crank shafts is rotatably mounted between the respective protruding block of the respective pedal and the respective retaining member. 
     
     
         17 . The exercising vehicle in accordance with  claim 1 , wherein the base frame includes a plurality of washers each mounted on the respective straight distal end of the respective crank shaft and each rested on the respective wheel, and a plurality of locking nuts each screwed onto the respective straight distal end of the respective crank shaft and each rested on the respective washer to lock the respective wheel onto the respective straight distal end of the respective crank shaft. 
     
     
         18 . The exercising vehicle in accordance with  claim 1 , wherein each of the two bent end portions of each of the two crank shafts has a height adjustable structure and includes a substantially U-shaped adjusting tube having two end portions, and two substantially L-shaped adjusting shafts each having an end portion adjustably inserted into the respective end portion of the adjusting tube. 
     
     
         19 . The exercising vehicle in accordance with  claim 18 , wherein each of the two end portions of the adjusting tube has a plurality of adjusting holes, each of the adjusting shafts has a through hole, and each of the two bent end portions of each of the two crank shafts further includes two adjusting bolts each extended through one of the respective adjusting holes of the adjusting tube and the through hole of the respective adjusting shaft, and two locking nuts each screwed onto the respective adjusting bolt and rested on the respective end portion of the adjusting tube. 
     
     
         20 . The exercising vehicle in accordance with  claim 1 , further comprising a seat assembly mounted on a rear portion of the base frame and including a support post secured on the longitudinal support rack of the base frame, and a seat mounted on the support post.