Fitness and entertainment device by use of gyroscopic precession effect of flywheel to generate autonomous yawing motion

Abstract

A fitness and entertainment device by use of gyroscopic precession effect of a flywheel to generate autonomous yawing motion including a rotatable base for stably supporting all components, an upright frame fixed on the rear side of the rotatable base, a suspended frame pivotally connected to the top of the upright frame. The suspended frame includes a pivotal shaft, a seat cushion, a pair of grip handles, a pair of pedal cranks, an arc-shaped wing and a flywheel driven by a chain drive system. The upright frame is provided with a stopper composed of several pulleys at the place corresponding to the arc-shaped wing. A ground-attaching support shaft is disposed at the rotational center of the rotatable base 10 . After the user continues to step on the pedal cranks to make the flywheel rotate until the appropriate physical inertia and the stable angular momentum are obtained, the torsional deflection may be applied to the “angular momentum direction” located at the rotation axis of the flywheel by pressing on the grip handles or shifting the user's own center of gravity at any time. At this time, the suspended frame immediately carries out the “gyroscopic precession effect” in the expected direction to which the pressure is applied. Meanwhile, the suspended frame together with the rotatable base starts to rotate around the ground-attaching support shaft in the expected direction; and when the user wants to stop the suspended frame or to rotate it in another direction, he only needs to put his body's center of gravity or exert force on the grip handles to make the suspended frame tilt back or lean to the other side, thereby obtaining the desired yawing motion effect.

What is claimed is: 
     
         1 . A fitness and entertainment device by use of gyroscopic precession effect of a flywheel to generate autonomous yawing motion, comprising:
 a rotatable base provided for firmly supporting all components and having a ground-attaching support shaft at the center of rotation;   an upright frame fixed at the rear side of the rotatable base and having an arc-shaped shell at the top thereof, a stopper composed of a number of pulleys being positioned at the bottom of the upright frame; and   a suspended frame pivotally joined at the top of the upright frame and having a pivotal shaft, a seat cushion, a pair of grip handles, a pair of pedal cranks, an arc-shaped wing and a flywheel driven by a chain drive system, wherein the pivotal shaft of the suspended frame is pivotally joined to the top of the upright frame, and wherein the height position of the center point of the rotation axis of the flywheel is close to or aligned with the extension axis of the pivotal shaft  31  of the suspended frame;   
       wherein, after the user continues to step on the pedal cranks to make the flywheel rotate until the appropriate physical inertia and the stable angular momentum are obtained, the torsional deflection may be applied to the “angular momentum direction” located at the rotation axis of the flywheel by pressing on the grip handles or shifting the user's own center of gravity at any time; at this time, the suspended frame immediately carries out the “gyroscopic precession effect” in the expected direction to which the pressure is applied; at the same time, the suspended frame together with the rotatable base starts to rotate around the ground-attaching support shaft in the expected direction; and when the user wants to stop the suspended frame or to rotate it in another direction, he only needs to put his body's center of gravity or exert force on the grip handles to make the suspended frame tilt back or lean to the other side, thereby obtaining the desired yawing motion effect. 
     
     
         2 . A fitness and entertainment device by use of gyroscopic precession effect of a flywheel to generate autonomous yawing motion, comprising:
 a rotatable base provided for firmly supporting all components and having a rotation-assisting wheel on each end edge, a ground-attaching support shaft being disposed at the center of rotation;   an upright frame fixed at the rear side of the rotatable base and having an arc-shaped shell at the top thereof, a cross tube and a hollow sleeve being fitted to the arc-shaped shell, a stopper composed of a number of pulleys being positioned at the bottom of the upright frame; and   a suspended frame pivotally attached to the arc-shaped shell at the top of the upright frame and having a pivotal shaft, a seat cushion, a pair of grip handles, a pair of pedal cranks, an arc-shaped wing and a flywheel driven by a chain drive system, wherein the pivotal shaft is fitted into the cross tube and the hollow sleeve to create a pivotal connection in the arc-shaped shell;   
       wherein, after the user continues to step on the pedal cranks to make the flywheel rotate until the appropriate physical inertia and the stable angular momentum are obtained, the torsional deflection may be applied to the “angular momentum direction” located at the rotation axis of the flywheel by pressing on the grip handles or shifting the user's own center of gravity at any time; at this time, the suspended frame immediately carries out the “gyroscopic precession effect” in the expected direction to which the pressure is applied; at the same time, the suspended frame together with the rotatable base starts to rotate around the ground-attaching support shaft in the expected direction; and when the user wants to stop the suspended frame or to rotate it in another direction, he only needs to put his body's center of gravity or exert force on the grip handles to make the suspended frame tilt back or lean to the other side, thereby obtaining the desired yawing motion effect. 
     
     
         3 . The fitness and entertainment device by use of gyroscopic precession effect of a flywheel to generate autonomous yawing motion as recited in  claim 2 , wherein a stopper element is disposed on the pivotal shaft of the suspended frame, and wherein the stopper element is matched to a stopping recess at a corresponding part of the cross tube and used for limiting the inclination angle of the suspended frame after being stressed. 
     
     
         4 . The fitness and entertainment device by use of gyroscopic precession effect of a flywheel to generate autonomous yawing motion as recited in  claim 2 , wherein the height position of the center point of the rotation axis of the flywheel is close to or aligned with the extension axis of the pivotal shaft of the suspended frame. 
     
     
         5 . The fitness and entertainment device by use of gyroscopic precession effect of a flywheel to generate autonomous yawing motion as recited in  claim 2 , wherein a braking mechanism is preferably provided at the place where the suspended frame is adjacent to the flywheel. 
     
     
         6 . A fitness and entertainment device by use of gyroscopic precession effect of a flywheel to generate autonomous yawing motion, comprising:
 a rotatable base provided for firmly supporting all components, a support shaft being disposed at the center of rotation;   an upright frame fixed at the rear side of the rotatable base and having an arc-shaped shell at the top thereof, a cross tube and a hollow sleeve being fitted to the arc-shaped shell, a stopper composed of a number of pulleys being positioned at the bottom of the upright frame;   a suspended frame pivotally attached to the arc-shaped shell at the top of the upright frame and having a pivotal shaft, a seat cushion, a pair of grip handles, a pair of pedal cranks, an arc-shaped wing and a flywheel driven by a chain drive system, wherein the pivotal shaft is fitted into the cross tube and the hollow sleeve to create a pivotal connection in the arc-shaped shell;   a rigid support on which all components can be placed and on which the desired movement of the gyroscopic precession effect can be carried out;   
       wherein, after the user continues to step on the pedal cranks to make the flywheel rotate until the appropriate physical inertia and the stable angular momentum are obtained, the torsional deflection may be applied to the “angular momentum direction” located at the rotation axis of the flywheel by pressing on the grip handles or shifting the user's own center of gravity at any time; at this time, the suspended frame immediately carries out the “gyroscopic precession effect” in the expected direction to which the pressure is applied; at the same time, the suspended frame together with the rotatable base starts to rotate around the ground-attaching support shaft in the expected direction; and when the user wants to stop the suspended frame or to rotate it in another direction, he only needs to put his body's center of gravity or exert force on the grip handles to make the suspended frame tilt back or lean to the other side, thereby obtaining the desired yawing motion effect. 
     
     
         7 . The fitness and entertainment device by use of gyroscopic precession effect of a flywheel to generate autonomous yawing motion as recited in  claim 6 , wherein a stopper element is disposed on the pivotal shaft of the suspended frame, and wherein the stopper element is matched to a stopping recess at a corresponding part of the cross tube and used for limiting the inclination angle of the suspended frame after being stressed. 
     
     
         8 . The fitness and entertainment device by use of gyroscopic precession effect of a flywheel to generate autonomous yawing motion as recited in  claim 6 , wherein the height position of the center point of the rotation axis of the flywheel is close to or aligned with the extension axis of the pivotal shaft of the suspended frame. 
     
     
         9 . The fitness and entertainment device by use of gyroscopic precession effect of a flywheel to generate autonomous yawing motion as recited in  claim 6 , wherein a braking mechanism is preferably provided at the place where the suspended frame is adjacent to the flywheel.