Patent ID: 6012916
Filing Date: 2000-01-11
Classification: F23Q

Abstract:
A safety electronic lighter comprising a housing formed of two symmetrical shells, a gas tank mounted in said housing, a flame tube at a front side of said housing, a gas tank having a valve, a gas tube connected between said valve of said gas tank and said flame tube, a battery power supply circuit, a control circuit, a high voltage coil connected to said battery power supply circuit through said control circuit and controlled to discharge sparks, an ignition control switch operated to open said valve and drive said control circuit in controlling said high voltage coil to discharge sparks at said flame tube, and a safety lock controlled to lock said ignition control switch; wherein:said housing comprises a top hole at a top side thereof on the middle, which receives said ignition control switch, two smoothly arched grooves disposed at a bottom side of said top hole, two notches bilaterally disposed between said grooves, a sliding slot at one lateral side thereof on the middle, a bottom hole at a bottom side thereof, and a switch holder on the inside adjacent to said bottom hole;said ignition control switch comprises a control knob, a driving element, a control bar, and a spring, said control bar having a bottom pin downwardly extended from a bottom side thereof, a top pin raised from a top side thereof, a plurality of bevel steps at the top side around said top pin, an extension, and a metal strip at said extension, said spring being mounted inside said housing around said bottom pin of said control bar to support said control bar, said driving element comprising a center hole, which receives said top pin of said control bar and two sets of bevel steps respectively disposed at top and bottom sides thereof around the center hole, the bevel steps at the bottom side of said driving element being meshed with the bevel steps at said control bar, said control knob being covered on a part of said control bar, said control knob having a bottom chamber, which receives said driving element, a plurality of bevel steps disposed inside said bottom chamber and meshed with the bevel steps at the top side of said driving element, and two projecting rods raised from the periphery thereof at two opposite sides and respectively inserted in grooves at said housing for enabling said control knob to be rotated clockwise/counter-clockwise within 90.degree. angle between the operative position where said projecting rods are aimed at the notches at said housing for enabling said control knob to be depressed to lower said control bar in triggering said control circuit, and the non-operative position where said projecting rods are moved away from said notches into said grooves to stop said control knob from downward movement;said safety lock is moved in said sliding slot at said housing to lock/unlock said ignition control switch said safety lock having a stop rod, and being shifted between the locking position where said stop rod is stopped below said control bar to prohibit said ignition control switch from downward movement, and at the same time prohibit said control knob from rotary motion;said battery power supply circuit comprises a battery set connected to said control circuit and said high voltage coil, a power control switch mounted in said switch holder and extended out of said housing through said bottom hole for operation by hand to close/open the circuit of said battery power supply circuit.