Dual function stationary bike

Abstract

A dual function stationary bike comprising a central body, a shift mechanism, a bidirectional resistance adjustment mechanism and a screen adjustment mechanism is provided. The components of the central body include those that are coordinated to comply with the purpose of a stationary bike: the base components, the handlebar components, the seat components, the pedals components and the resistance assembly. The shift mechanism is installed between the components of the base and of the handlebar, regulates and fixes the relative position between the components of the handlebar and of the base to carry out the two different functions of the stationary bike.

1 . A dual function stationary bike comprising:
 central body components, a shift mechanism, a bidirectional resistance adjustment mechanism and a screen adjustment mechanism,   wherein the central body components include the base components, the handlebar components, the seat components, the pedals components and the resistance assembly;   wherein the shift mechanism is located between the base components and the handlebar components, and regulates and fixes the relative position between the handlebar and the base components to carry out two different functions of the stationary bike;   wherein the shift mechanism includes:
 a first elliptical plate fixed in the front tube of the base components, 
 a second elliptical plate fixed in the rear tube of the base components, and 
 a third elliptical plate fixed in the handlebar bar of the handlebar components; 
   wherein the front tube, the rear tube and the handlebar bar are articulated with a pin to guarantee that the three elliptical plates coaxially rotate over an articulation point;   wherein in the first elliptical plate there is a first positioning hole, in the second elliptical plate there is a second positioning hole and the third elliptical plate has a strap spring pin in which said pin coordinates with the first and second positioning holes respectively to fix the position and perform the function shift.   
     
     
         2 . The dual function stationary bike of  claim 1 ,
 wherein the bidirectional resistance adjustment mechanism is installed in the upper part of the handlebar bar, including the central body of the adjustment mechanism, and in which said adjustment device coordinates with the resistance assembly to regulate the resistance,   wherein the adjustment mechanism has a coaxial bar that protrudes the two ends of the main body, with each end of said bar having a knob,   wherein turning each of the knobs can activate the rotation of the coaxial bar and the coordination between the adjustment device and the resistance assembly to reach the purpose of regulating the resistance.   
     
     
         3 . The dual function stationary bike of  claim 1 ,
 wherein a described screen adjustment mechanism is installed in the cross bar of the handlebar components, and includes a central body of the screen that rotates over the rotation axis and has a position stop,   wherein the rotation axis has a protruding point to limit the position, with the position stop and the protruding point being coordinated to guarantee that the central body of the screen can only rotate 180° over the rotation axis,   wherein there is a fixation slot in the central body of the panel and a fixation point in the rotation axis, with both coordinated to carry out the temporary fixation of the central body of the panel.