Patent ID: 9707440
Date: 2017-07-18
CPC Classifications: A63B

Claim:
1. An upright bike apparatus with a pull training function, the upright bike apparatus comprising: a main frame having a front portion and a rear portion; a rail structure connected to said rear portion of said main frame; an X-shaped frame slidably mounted to said rail structure and pivotally connected to said front portion of said main frame, said X-shaped frame having a first trestle and a second trestle each having a middle portion laterally pivotally connected to each other by a pivot axle that extends through said first trestle and said second trestle, wherein a hinge end is formed on a lower portion of said first trestle and is pivotally connected to said front portion of said main frame, wherein a slide end is formed on a rear end of said second trestle and is slidably mounted onto said rail structure, wherein said rail structure has two T-shaped grooves respectively defined in two opposite sides thereof, said slide end being formed with two stems each having a roller laterally mounted thereon, wherein each of the rollers is movable in a corresponding one of the two T-shaped grooves; a stepping structure mounted on a lower section of said first trestle of said X-shaped frame, said stepping structure having a crank rotatably extending through said first trestle of said X-shaped frame, wherein two pedals are respectively pivotally mounted on two opposite ends of said crank, and wherein a damping device is rotatably mounted to said first trestle of said X-shaped frame and rotatable with said crank; a seat secured on a top of said first trestle of said X-shaped frame; a handlebar transversely secured on a top of said second trestle of said X-shaped frame, said slide end of said second trestle being movable along said rail structure, said seat being lifted when said handlebar is upwardly pulled; and a restitute element having two opposite ends respectively secured on said first trestle and said second trestle of said X-shaped frame so as to provide a restitution force to said X-shaped frame when said handlebar is upwardly pulled.