Safety device of a lighter

Abstract

A safety device of a lighter, which has simple structure and more truly provides safety effect. The safety device includes: a main body having a fuel reservoir and a base seat, a press section being disposed on the base seat for controlling a valve member to open/close the fuel reservoir; and a wheel disposed on the base seat. The wheel has a rotary shaft movably fitted in a wedge hole of the base seat. The wheel is movable and rotatable for abrading a firestone. Several ratchets are formed on a wall of the wedge hole. The rotary shaft is formed with annularly arranged ratchets. The rotary shaft can be moved within the wedge hole to selectively engage the ratchets of the rotary shaft with the ratchets of the wedge hole or disengage the ratchets of the rotary shaft from the ratchets of the wedge hole. In a disengaged state, the wheel is rotatable for igniting gas.

1 . A safety device of a lighter comprising: 
 a main body having a fuel reservoir and a base seat, a press section being disposed on the base seat for controlling a valve member to open/close the fuel reservoir; and    a wheel disposed on the base seat, the wheel having a rotary shaft movably fitted in a wedge hole of the base seat, the wheel being movable and rotatable for abrading a firestone, several ratchets being formed on a wall of the wedge hole, the rotary shaft being formed with annularly arranged ratchets, whereby the rotary shaft can be moved within the wedge hole to selectively engage the ratchets of the rotary shaft with the ratchets of the wedge hole or disengage the ratchets of the rotary shaft from the ratchets of the wedge hole, in a disengaged state, the wheel being rotatable for igniting gas.    
   
   
       2 . The safety device of the lighter as claimed in  claim 1 , wherein the rotary shaft of the wheel is fitted in a wedge hole of a middle bracket of the base seat, whereby the wheel is rotatable and vertically movable.  
   
   
       3 . The safety device of the lighter as claimed in  claim 1 , wherein the wedge hole is a slot including an upper section and a lower section, the ratchets being formed at inner end of the upper section of the wedge hole.  
   
   
       4 . The safety device of the lighter as claimed in  claim 2 , wherein each ratchet of the wedge hole has a tooth tip which is clockwise directed and the ratchets of the rotary shaft are counterclockwise directed in reverse to the tooth tips of the ratchets of the wedge hole, whereby the ratchets of the rotary shaft can interfere with or engage with the ratchets of the wedge hole.  
   
   
       5 . The safety device of the lighter as claimed in  claim 2 , wherein each ratchet of the wedge hole has a tooth tip which is counterclockwise directed and the ratchets of the rotary shaft are clockwise directed in reverse to the tooth tips of the ratchets of the wedge hole, whereby the ratchets of the rotary shaft can interfere with or engage with the ratchets of the wedge hole.