Children resistant gas lighter
The children resistant gas lighter of the invention has an ignition sleeve having a slit defined therein and a safe cap having a press surface, an opposite slide surface, a direction bar formed on the slide surface which is insterted in the slit and is able to make the safe cap slidable in the slit. In use, a user has to move the safe cap against a bias spring by his thumb until the safe cap is no longer blocked by a top surface of a flame cover and then press down the safe cap. The invention is able to make the safety device more credible and make it be harder for children to get undersand how to ignition thus making it safer for children.
1. Field of the Invention
The invention relates to a children resistant gas lighter, and more particularly, to a gas lighter which is more credible in preventing unintentional ignition.
2. Description of the Prior Art
The lighter industry has been engaging for developing a simple yet credible children resistant device for prevent the lighter from unintentional ignition.
Such a lighter is diclosed in U.S. Pat. No. 5,839,892 named “Electronic Lighter with A Safety Device”. The lighter has a press button means consists of an upper cover and “the upper cover has two hook-like ends of the press cylinder such that the hook-like ends of the upper cover are retained by a step portioin near an upper end of each second guide slot when the lighter is not in use.”
The lighter of the aforementioned patent has a drawback. A user who does not know how to use the lighter very possibly may increase a pressing force to ignite the lighter while he cannot ignite it with ordenary force as use with conventional gas lighter. However the structure of safety of the two hool-like ends is too thin to withstand the greater force. In fact, either one of the two hook-like ends or both often breaks in actual use when an unkown user forcibly press the upper cover down, which would invalidate the safety device. It means the credibility of the safety device is not very satisfactory.
BRIEF SUMMARY OF THE INVENTIONThe object of the invention is to provide a children resistant gas lighter having a more credible safety device.
The other object of the invention is to provide a children resistant gas ligher which is hard for children to get undersand how to ignition thus making it safer for children.
In order to accomplish the aforementioned objects, the present invention provides a children resistant gas lighter having a fuel-storage chamber for containing liquefied gaseous fuel; an upliftable gas release nozzle mounted on the fuel-storage chamber; a piezoelectric unit mounted on the fuel-storage chamber and having a piezoelectric button which when pressed downward, is able to startup the piezoelectric unit to generate sparks for ignition; a pair of pillars securely mounted on the fuel-storage chamber; an ignition trigger having a ignition sleeve slidably mounted on the pair of pillars which when pressed down, slidable with respect to the pair of pillars and when released, resumable to its undepressed position; a lever rotatably mounted on the fuel-storage chamber which when the ignition trigger is pressed down, is able to uplift the gas release nozzle to release the gaseous fuel and at the same time depress the piezoelectric button to startup the piezoelectric unit to generate sparks; a slit defined in the ignition sleeve; a flame cover having a top surface and being installed on the fuel-storage chamber and fixed to the pair of pillars; and, a safe cap having a press surface, an opposite slide surface, a direction bar formed on the slide surface which is insterted in the slit and is able to make the safe cap slidable in the slit, a pair of stoppers formed on the direction bar which is able to provent falling off of the safe cap with respect to the ignition sleeve when sliding, a pole formed on the direction bar, a bias spring installed on the pole biasing the safe cap with respect to the ignition sleeve, and, a shoulder near the first end of the safe cap.
These and other objectives, features, and advantages of the present invention will become apparent from the following detailed description, the accompanying drawings, and the appended claims.
With reference to
As shown in
In use, as with reference back to
The lighter of the invention may have a housing (not shown in the FIGs.) for containing the fuel-storage chamber 10. As shown in FIGs., the press surface 421 of the safe cap 42 may have a raised wale 429 for antislipping when moved by thumb.
The embodiments of the present invention as shown in the drawings and described above is exemplary only and not intended to be limiting.
From above description, it is seen that the objects of the present invention have been fully and effectively accomplished. Embodiment of the inventioin has been shown and described for the purposes of illustrating the functional and structural principles of the present invention and is subject to change without departure from the invention's principles. Therefore, this invention includes all modifications encompassed within the spirit and scope of the following claims.
Claims
1. A children resistant gas lighter having a fuel-storage chamber for containing liquefied gaseous fuel, an upliftable gas release nozzle mounted on said fuel-storage chamber, a piezoelectric unit mounted on said fuel-storage chamber and having a piezoelectric button which when pressed downward, is able to startup said piezoelectric unit to generate sparks for ignition, a pair of pillars securely mounted on said fuel-storage chamber, an ignition trigger having an ignition sleeve slidably mounted on said pair of pillars which when pressed down, slidable with respect to said pair of pillars and when released, resumable to its undepressed position, a lever rotatably mounted on said fuel-storage chamber which when said ignition trigger is pressed down, is able to uplift said gas release nozzle to release said gaseous fuel and at the same time depress said piezoelectric button to startup said piezoelectric unit to generate sparks, and, a flame cover having a top surface and being installed on said fuel-storage chamber and fixed to said pair of pillars, wherein the improvements comprising:
- A slit defined in said ignition sleeve;
- A safe cap having a press surface, an opposite slide surface, a direction bar formed on said slide surface which is insterted in said slit and is able to make said safe cap slidable in said slit, a pair of stoppers formed on said direction bar which is able to provent falling off of said safe cap with respect to said ignition sleeve when sliding, a pole formed on said direction bar, a bias spring installed on said pole biasing said safe cap with respect to said ignition sleeve, and, a shoulder near said first end of said safe cap.
2. The children resistant gas lighter as claimed in claim 1, wherein said children resistant gas lighter has a housing for containing said fuel-storage chamber.
3. The children resistant gas lighter as claimed in claim 1, wherein said the press surface of said safe cap has a raised wale for antislipping when moved by thumb.
4. The children resistant gas lighter as claimed in claim 2, wherein said press surface of said safe cap has a raised wale for antislipping when moved by thumb.
5. The children resistant gas lighter as claimed in claim 1, wherein siad flame cover further has a recess for receiving said shoulder of said safe cap, making said top surface of said flame cover be at a same level as a top surface of said safe cap.
6. The children resistant gas lighter as claimed in claim 5, wherein said children resistant gas lighter has a housing for containing said fuel-storage chamber.
7. The children resistant gas lighter as claimed in claim 5, wherein said the press surface of said safe cap has a raised wale for antislipping when moved by thumb.
8. The children resistant gas lighter as claimed in claim 6, wherein said press surface of said safe cap has a raised wale for antislipping when moved by thumb.
Type: Application
Filed: Aug 9, 2006
Publication Date: Dec 6, 2007
Inventor: Xinhua Huang (Ningbo)
Application Number: 11/501,024
International Classification: F23Q 7/12 (20060101); F23D 11/36 (20060101);