Safety lock mechnaism of a lighter

Abstract

A safety lock mechanism of a lighter, including a lighter main body, a press key and a safety shift plate. A gas container for containing gas and an ignition unit are disposed in the lighter main body. The press key is disposed on upper side of the ignition unit. A top side of the press key is formed with a slot perpendicular to a pressing direction of the press key. The safety shift plate is slidably disposed in the slot of the press key. The safety shift plate is pushed by a resilient member, whereby in normal state, one end of the safety shift plate extends into a dent of the lighter main body to restrict the press key from being pressed down. Under such circumstance, the lighter is in a locked safety state. When a user desires to ignite the gas, the user only needs to first outward push the safety shift plate along the slot with a finger. At this time, the end of the safety shift plate is extracted from the dent and the press key is released from the restriction. Then the key press can be pressed down to activate the ignition unit for ignition.

Description

BACKGROUND OF THE INVENTION [0001] The present invention is related to an improved safety lock mechanism of a lighter. The safety lock mechanism prevents the lighter from being incautiously ignited by a user or unexpectedly ignited by a child so as to avoid accident or danger. [0002] There are various types of conventional lighters. A type of conventional lighter has a toothed spark wheel for abrading a flint to generate sparks. The sparks can ignite the released gas (butane) to generate flame. Another type of conventional lighter has a striker for striking a piezoelectric cell (such as a crystal) to generate electric sparks. The sparks can ignite the released gas to generate flame. The latter is more likely to be mis-touched and unexpectedly ignited. This will lead to danger or even accident. [0003] Taiwanese Patent Publication No. 579413 (Application No. 91103611) discloses a lighter with security mechanism. The lighter has a latch member. In original state, the latch member restr...

AI Technical Summary

Benefits of technology

"The present invention is an improved safety lock mechanism for a lighter. It includes a lighter main body, a press key, and a safety shift plate. The safety shift plate is slidably disposed in a slot of the press key and is pushed by a resilient member. In the normal state, the safety shift plate extends into a dent of the lighter main body to restrict the press key from being pressed down, resulting in a locked safety state. When a user desires to ignite the gas, the user only needs to outward push the safety shift plate along the slot with a finger to release the press key and activate the ignition unit for ignition. The safety lock mechanism has a simple structure and can be easily locked / unlocked with a single finger in a continuous operation, making it convenient to use the lighter."

Problems solved by technology

The latter is more likely to be mis-touched and unexpectedly ignited.

This will lead to danger or even accident.

As a result, the manufacturing cost for such security mechanism is relatively high.

Moreover, when using the lighter, it is necessary to release the starter and then ignite the gas at two discontinuous stages.

Therefore, it is inconvenient to use such lighter.

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