JPS6011020A - Filter for gas lighter - Google Patents

Abstract

PURPOSE:To enable to restrict the flame not to becoming excessively large by controlling the flow rate of gas by a structure wherein a filter consisting in laminating porous non-woven fabric and molecular sieves is employed at the bottom of a burner unit containing a nozzle, through which the liquefied gas of a gas lighter is vaporized and discharged. CONSTITUTION:When a nozzle 2 is pulled up by a flame control lever, liquefied gas enters a space between the nozzle 2 and a burner unit 4 and then passes tnrough the gas lead-in passage 2b of the nozzle 2 and enters the gas lead-out passage 2a of the nozzle 2 and finally jets out upwards at high speed. The liquefied gas, which is sucked up by a sucking-up wick 12, passes through a gap between a fixer 8 to fix a filter 6 thereon and a collar 7 and is controlled by the filter 6 and passes to the nozzle 2 side. The control of flame length is done by changing the compressibility of the filter 6 through the change of the distance between the fixer 8 and the bottom of the burner unit 4 by means of the flame control lever. The filter may be composed of three layers or thin film of molecular sieves, porous non-woven fabric and thin urethane foam film or of two layers or porous non-woven fabric and thin film of molecular sieves.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a filter used inside the burner section of a plastic gas lighter, particularly a disposable gas lighter, to adjust the flow rate of gas.

Conventional disposable gas lighters of this type are equipped with a control valve for adjusting the gas flow rate, but this control valve is configured to allow fuel gas to permeate a filter made of appropriately compressed urethane foam, etc. The gas flow rate is adjusted by adjusting the compression ratio of the filter.

However, since the filter of this control valve uses a porous material such as urethane foam, the flame length varies depending on the material, and the flame changes over time due to chemical resistance to gas, so the length adjustment is done by the user. There was a problem in that if the lever was operated incorrectly, the flame would become excessive and there was a risk of burns.

Also, for example, if the flame length is set too high and the lighter is used for a long time, the material of the lighter body is plastic, which has poor thermal conductivity compared to metal, resulting in an insufficient supply of vaporization heat of the liquefied gas, which flows out as a liquid, resulting in the svittein phenomenon. may occur and cause burns. In addition, there was also the problem that a shallow fire phenomenon could occur due to the accumulation of liquid in the nozzle, which could lead to a fire.

Focusing on this problem, for example, US Patent No. 4101262
The publication proposes a filter that uses a microporous membrane and has a filter for limiting the maximum flame and a filter for length adjustment as separate mechanisms, but the thickness of the microporous membrane of this filter is Since the diameter is about 20 to 30μ, there are problems in that it is easily damaged and inconvenient to handle, and since it is a separate mechanism, there is also the problem that the cost increases due to an increase in the number of parts and the number of assembly steps.

The present invention was made to solve the problem of ridges, and its purpose is to restrict the flame from becoming excessive by adjusting the gas flow rate, and to make it easy to handle with a simple mechanism. An object of the present invention is to provide a filter for a gas lighter.

The gist of this is that a filter consisting of a porous non-woven fabric and a molecular sieve *a laminated on the bottom of a burner knit that includes a nozzle that can vaporize and release the liquefied gas of a gas lighter, or a urethane foam thin film and a porous The purpose of the present invention is to provide a filter made of a laminated Wl film of a quality non-woven fabric and a molecular sieve, and to provide a collar that presses the outer peripheral part of the filter and a stator that presses the inside thereof.

Hereinafter, the details of the present invention will be specifically explained with reference to the drawings.

FIG. 1 is an explanatory view showing one embodiment of a disposable gas lighter according to the present invention, and FIG. 2 is an enlarged view of the filter in FIG. 1.

11t! In Figures 1 and 2, 1 is a main body case, 2 is a nozzle, 2a is a gas outlet passage, 2b is a gas introduction passage, 3 is a nozzle case, 4 is a burner unit, 5 is a rubber valve, and 6 is a thin film of molecular sieve 6a. Porous thin film 6b and urethane film
7 is a collar, 8 is a stator, 9 is a spring, 10.11 is an O-ring, and 12 is a suction core.

Therefore, 1. The nozzle 2 can be moved up and down within a certain range within the nozzle case 3, and an O ring 10 is installed between the nozzle case 3 and the nozzle case 3.
It is configured to be pulled up by a lever (not shown) and pulled down by a spring 9.

The rubber valve 5 is made of a soft material such as oil-resistant rubber.
It is attached to the lower end of the nozzle 2 and opens and closes the gas flow path according to the elevation of the nozzle 2.

When the nozzle 2 is pulled upward by the bar (not shown), the liquefied gas enters the space formed by the nozzle 2 and the burner unit 4.
The gas passes through the gas introduction path 2b of the nozzle 2, enters the gas outlet path 2a, and is further ejected upward at a high speed.

The liquefied gas sucked up by the suction wick 12 passes between the stator 8 that fixes the filter 6 and the collar 7, is regulated by the filter 6, and passes to the nozzle 2 side.

To adjust the length of the flame, use the flame t (not shown) to adjust the length of the flame.
Loosen the 1gm lever to increase the distance between the stator 8 and the bottom of the burner unit 4, and reduce the compression ratio of the filter 6 (this will increase the flow rate (and increase the flame length).Also, when decreasing the flame length, The nozzle case may be tightened using a flame lever (not shown), and the F filter may be compressed to reduce the permeation of the C flow rate.

The thin film of molecular sieve has a pore size of approximately 0.1 to 1 μX O,01 to 0.1 μ, so when using a fuel based on n-butane or a fuel based on isobutane, only the vaporized portion of the liquefied gas passes through. It has the effect of not allowing liquid to pass through.

In this embodiment, the filter is made of three layers: a thin film of molecular sieve, a porous nonwoven fabric, and a thin film of urethane foam, but it may also be made of two layers: a thin film of porous nonwoven fabric and a thin molecular sieve.

Since the present invention has a ridge-like structure, the present invention can reliably limit the gas flow rate within a safe limit, provide a stable flame at all times, is highly safe, and is a disposable product that can be mass-produced at low cost. A filter for a gas lighter can be provided.

Note that the present invention is not limited to the embodiment on ridges.

That is, for example, in this embodiment, a collar and a stator are used to fix the filter, and the liquefied gas is passed between them. However, the collar and the stator are integrally formed, and the liquefied gas is An insertion hole may be provided, and the shape of the nozzle and burner unit can be freely changed within the scope of the purpose of the present invention, and the present invention encompasses all of these. .

[Brief explanation of the drawing]

FIG. 1 is an explanatory view showing one embodiment of a disposable gas lighter according to the present invention, and FIG. 2 is an enlarged view of the filter in FIG. 1. 1--------------1--1 Main case 2-----1--
--Nozzle 2 a-----・--～-----・・--
−・−Gas outlet path 2b・−−−−−−−1・−・−・・
-----Gas introduction path 3----1...---------...
−・−・−Nozzle case 4・・・−・−・−1111−
--------・Burner unit 5-1---・-1---
・−−11−−−−−−−−Rubber valve 6−−−−・・−
-----1・-1------Filter 6a-1・
・--
Porous non-woven fabric 6C-...-1-------------Ul/Tanform thin belly 7-----------
−・・−−−−・・Color 8−−−−−−−−−・
・−・・−・−Stator 9−−−−・〜−−−−−−−
−−−−−−−−−Spring 10.11− ・−・
−・−−−−−−0 ring 12−−−−1・−−−
−−1−−−−−−−−−−−Suction wick patent applicant Iwa
Hisao Horitomi Agent (7524) Shotabe Mogami

Claims (1)

[Claims] 1) A filter for a gas lighter made of a laminated layer of porous nonwoven fabric and molecular sheep thin film. 2) A gas lighter filter according to claim 1, comprising a urethane foam thin film, the porous nonwoven fabric, and a molecular sieve thin film laminated.