Terrain-adaptive weight training sled with free steering

Abstract

A terrain-adaptive weight training sled with free steering including: a main frame with first and second ends remote from each other; a resistance wheel rotatably disposed on the first end and having a damping structure; two rotatable and freely steerable omni-wheels disposed on both sides of the second end; and a pulling member having a connecting end, a user-operated end, and a flexible extension section, the connecting end being used to connect with the second end of the main frame and the user-operated end being used for the user to apply force for pulling. The height of the first end is lower than the second end, relatively causing the second end to have an upward inclination angle θ which is between 6° and 15°. When the user pulls the second end to turn by the pulling member, the two omni-wheels are driven to produce a turning motion thereafter.

1 . A terrain-adaptive weight training sled with free steering, comprising:
 a main frame having a first end and a second end remote from each other;   a resistance wheel rotatably disposed on the first end and assembled with a damping structure to provide a damping effect to retard the rolling of the resistance wheel;   two omni-wheels in a rotatable and freely steerable state, disposed on both sides of the second end, allowing the main frame to be displaced by utilizing the rolling of each omni-wheel and the resistance wheel; and   a pulling member having a connecting end, a user-operated end, and an extension section between the connecting end and the user-operated end, wherein the connecting end being used to connect with the second end of the main frame, and the user-operated end being used for a user to apply a force for pulling; whereby, when the user guides the second end to turn by means of the pulling member, the two omni-wheels are driven to produce a turning motion; and   wherein the height of the first end of the main frame is lower than the height of the second end, relatively causing the second end to have an upward inclination angle θ which is between 6° and 15°.   
     
     
         2 . The terrain-adaptive weight training sled with free steering according to  claim 1 , wherein, the main frame is further provided with a weight loading holder that allows the user to selectively load a weight member. 
     
     
         3 . The terrain-adaptive weight training sled with free steering according to  claim 1 , wherein, a pulling connection portion is provided at the second end of the main frame for connection to the connecting end of the pulling member. 
     
     
         4 . The terrain-adaptive weight training sled with free steering according to  claim 3 , wherein, the pulling connection portion includes two spaced apart clasps that allow the connecting end of the pulling member to be aligned accordingly, resulting in the formation of two separate hooking cables. 
     
     
         5 . The terrain-adaptive weight training sled with free steering according to  claim 1 , wherein, the user-operated end of the pulling member is of one of the following types: a hand loop, a chest strap, a shoulder strap, a girdle, or a lasso. 
     
     
         6 . The terrain-adaptive weight training sled with free steering according to  claim 1 , wherein, the second end of the main frame is erected with two handlebars in a spaced-apart configuration. 
     
     
         7 . The terrain-adaptive weight training sled with free steering according to  claim 6 , wherein, the two handlebars are provided for coupling the connecting end of the pulling member to the second end of the main frame. 
     
     
         8 . The terrain-adaptive weight training sled with free steering according to  claim 1 , wherein, a push frame provided at on the first end of the main frame.