Patent Publication Number: US-2004040766-A1

Title: Safety handlebar assembly for electric scooters

Description:
FIELD OF THE INVENTION  
       [0001] The present invention relates to a safety handlebar assembly for electric scooters and includes two switches on two handlebars respectively and the motor is activated only when the two switches are operated.  
       BACKGROUND OF THE INVENTION  
       [0002] A conventional electric scooter is convenient for seniors and generally includes a board with a front wheel and a rear wheel connected to an underside of the board. A handlebar post is connected to the front end of the board and a handlebar with two grasps are extended from the handlebar post so that when operating the handlebar, the front wheel turns. One of the grasps is equipped with an acceleration device which is rotatable relative to the handlebar so that when rotating the acceleration device, a motor connected to the board is activated and directly drives the rear wheel to move the scooter. It is a potential risk for a user who holds the grasp by one hand and the other hand does not hold the other grasp, because the motor can be activated by rotating the acceleration device, the scooter could suddenly move forward if the acceleration device is operated. Once the scooter moves with only one hand on the handlebar, the user cannot control the scooter well.  
       [0003] The present invention intends to provide a safety handlebar assembly for an electric scooter and the motor can only be activated by two hands on the two grasps of the handlebar.  
       SUMMARY OF THE INVENTION  
       [0004] In accordance with one aspect of the present invention, there is provided a electric scooter which comprises a board having a seat assembly and a motor is connected to the board so as to drive a rear wheel connected to an underside of the board. A connection member with a head tube is connected to a front end of the board and a handlebar post rotatably extends through the head tube. A front wheel is connected to a first end of the handlebar post and the handlebar is connected to a second end of the handlebar post. An acceleration device is rotatably connected to a first end of the handlebar and a first switch is connected to a second end of the handlebar. The first switch is connected to the motor.  
       [0005] The primary object of the present invention is to provide an electric scooter and the motor of the scooter can only be activated by two hands put on two switches of the handlebar.  
       [0006] The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention. 
     
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
     [0007]FIG. 1 is a perspective view to show the electric scooter of the present invention;  
     [0008]FIG. 2 shows a top view of the electric scooter of the present invention;  
     [0009]FIG. 3 shows that only one hand rotates the acceleration device on the handlebar of the electric scooter of the present invention, and  
     [0010]FIG. 4 shows that two hands put on two switches on the handlebar of the electric scooter of the present invention. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
     [0011] Referring to FIGS. 1 and 2, the electric scooter of the present invention comprises a board  10  having a seat assembly extending from a top surface thereof and a motor  20  is connected to the board  10 . A rear wheel  11  is connected to an underside of the board  10  and is driven by the motor  20 .  
     [0012] A connection member  100  is connected to a front end of the board  10  and a head tube  101  is connected to a distal end of the connection member  100 . A handlebar post  300  rotatably extends through the head tube  101  and a front wheel  31  is connected to a first end of the handlebar post  300  and a handlebar  30  is connected to a second end of the handlebar post  300 .  
     [0013] An acceleration device  301  is rotatably connected to a first end of the handlebar  30  and a first switch  50  is connected to a second end of the handlebar  30 . The first switch  50  is connected to the motor  20 . A second switch  500  is connected to the handlebar  30  and located beside the acceleration device  301 . The second switch  500  is connected to a control device  60  which is connected to the board  10  and the first switch  50 .  
     [0014] The first switch  50  and the second switch  500  may be temperature-sensored switches, touch-operation switches, or micro-switches. A folding device (not shown) may also be used to allow the connection member  100  to be folded toward the board  10  so that the scooter can be folded to a compact size.  
     [0015] While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.