The gymnastic bicycle of the invention (seen in figure 1) is a bicycle that collects fitness and entertainment as a whole, wherein a handles are mounted on an upper portion of a front fork support and a front wheel assembly is mounted on a lower portion of the front fork support; a foot pedal is mounted on a lower end of a foot pedal support; an upper end of the foot pedal support, a front end of a bicycle frame and the middle upper portion of the front fork support are hinged on the same point; a back wheel assembly is mounted on a back end of the bicycle frame; a seat support is bent; a middle front end of the seat support is provided with a hinge frame; the hinge frame and the middle portion of the foot pedal support are mutually hinged to each other through a connecting rod; the middle front portion of the seat support is hinged to the middle front portion of the bicycle frame; the front end of the seat support and a crank of a big gear on which a one-direction fly wheel is mounted are mutually hinged to each other through a connecting rod; the big gear is hinged to the middle portion of the bicycle frame; the big gear is connected to a small gear on the back wheel; a seat is mounted on the seat support; and the back wheel is provided with a back wheel assembly.
Gymnastic bicycle
2016-01-13
Patent
Elektronische Ressource
Englisch
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