Safety lock of fire lighter

Abstract

A fire lighter includes a casing accommodating an ignition mechanism and defining an open chamber in which an ignition button is movably received. The ignition button is depressible by a user to actuate the ignition mechanism. A safety lock includes a movable button positioned on the ignition button. The movable button has a bottom face on which first and second projections are formed. The projections are movably received in slots defined in the ignition button and biased by springs arranged between the ignition button and the movable button to ensure smooth and stable movement of the movable button and to eliminate potential problem of jamming of the movable button.

1 . A lighter comprising a casing accommodating ignition mechanism, an ignition button, and a safety lock, wherein:
 the casing forms an open chamber delimited by at least one side wall in which a sideway notch is defined;   the ignition button is movably received in the open chamber to be depressible to actuate the ignition mechanism to set a fire on a fire outlet opening defined in the casing, the ignition button having a top face in which a slide slot is defined and an inner side face defining a recess; and   the safety lock comprising a movable button arranged on the ignition button, the movable button having an underside forming first and second projecting stops, which are movably received in the slide slot and the recess, respectively, and are biased by first and second springs that are retained between the first stop and an inside face of the ignition button and between the second stop and a side wall of the recess, the movable button having an inner side face forming a block removably engageable with the sideway notch of the casing to prevent the movable button and the ignition button from being depressed.