Safety apparatus for motorcycle

Abstract

Disclosed is a safety device for motorcycle, the safety device for motorcycle comprising: a supporting assembly installed onto both lateral side of the motorcycle body, with a plurality of parts of which are rotatable relative to each other; a supporting wheel installed onto the supporting assembly which is rotatable relative to the supporting assembly a push-pull unit that connects the supporting assembly to the motorcycle body, pushes the supporting assembly in order for the supporting wheel contacting with ground, and pulls the supporting assembly in order for the supporting wheel for taking off the ground; and a control unit that controls the push-pull unit. According to the present invention the motorcycle will not easily fall down when it stops for a moment in driving, the driver can easily support the motorcycle, and the motorcycle will not incline over a predetermined angle in driving curved path.

1 . A safety device for a motorcycle, comprising:
 a supporting assembly installed onto lateral sides of a body of a motorcycle and having a plurality of parts that are rotatable relative to each other;   a supporting wheel installed onto the supporting assembly and rotatable relative to the supporting assembly;   a push-pull unit connecting the supporting assembly to the body, adapted to push the supporting assembly so that the supporting wheel contacts a ground, and adapted to pull the supporting assembly so that the supporting wheel takes off the ground; and   a control unit for controlling the push-pull unit,   wherein the control unit  400  includes: a pressure tank disposed in the body, a plurality of pipes that link the push-pull unit to the pressure tank, a valve unit connected to the pipes and adapted to control a flow direction of compressed air filled in the pressure tank, and a manipulation unit for controlling the valve unit,   and wherein the manipulation unit includes: a slope detection unit for detecting a slope of the body when the body is inclined over a predetermined angle.   
     
     
         2 . The safety device for a motorcycle as recited in  claim 1 ,
 wherein the supporting assembly includes: a first part installed onto the body detachably; a second part connected to the first part rotatably; and a third part connected to the second part rotatably, connected to the push-pull unit and connected to the supporting wheel.   
     
     
         3 . The safety device for a motorcycle as recited in  claim 2 ,
 wherein a stopper is disposed on the first part to restrict a rotational angle of the second part.   
     
     
         4 . The safety device for a motorcycle as recited in  claim 2 ,
 wherein the second part is rotatable relative to the first part, an end of the first part is connected to one end of the second part by a first connection pin, the third part is rotatable relative to the second part, an other end of the second part is connected to an end of the third part by a second connection pin, and an angle between the first connection pin and the second connection pin is 90 degrees or less.   
     
     
         5 . The safety device for a motorcycle as recited in  claim 1 ,
 wherein the push-pull unit comprises: a connection part connected to the supporting assembly rotatably; an air cylinder having one end connected to the body rotatably and an other end that corresponds to an end of a rod and is connected to the connection part rotatably; and a spring having one end inserted into the rod and an other end supporting a surface of the connection part.   
     
     
         6 . (canceled) 
     
     
         7 . The safety device for a motorcycle as recited in  claim 6 ,
 wherein the manipulation unit comprises: a changeover switch connected to the valve unit and adapted to toggle between an auto mode and a manual mode;   a manual switch connected to the changeover switch;   an auto switch adapted to be enabled or disabled according to a speed of the body; and   a speed sensor connected to the auto switch and adapted to detect a speed of the body.   
     
     
         8 . (canceled) 
     
     
         9 . The safety device for a motorcycle as recited in  claim 6 , further comprising:
 a pressure control unit for controlling a pressure change in the pressure tank due to a movement of the push-pull unit.