EP0411154B1 - Ajutage a extinction automatique de la flamme et organe collecteur de chaleur pour briquets a gaz - Google Patents

Ajutage a extinction automatique de la flamme et organe collecteur de chaleur pour briquets a gaz Download PDF

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Publication number
EP0411154B1
EP0411154B1 EP19900903398 EP90903398A EP0411154B1 EP 0411154 B1 EP0411154 B1 EP 0411154B1 EP 19900903398 EP19900903398 EP 19900903398 EP 90903398 A EP90903398 A EP 90903398A EP 0411154 B1 EP0411154 B1 EP 0411154B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
gas
valve
type
flame extinguishing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19900903398
Other languages
German (de)
English (en)
Other versions
EP0411154A1 (fr
Inventor
Tadamichi Hattori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Eurotec Co Ltd
Original Assignee
Nippon Eurotec Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP3896289A external-priority patent/JPH02217715A/ja
Priority claimed from JP2027950A external-priority patent/JPH0627580B2/ja
Application filed by Nippon Eurotec Co Ltd filed Critical Nippon Eurotec Co Ltd
Publication of EP0411154A1 publication Critical patent/EP0411154A1/fr
Application granted granted Critical
Publication of EP0411154B1 publication Critical patent/EP0411154B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q2/00—Lighters containing fuel, e.g. for cigarettes
    • F23Q2/28—Lighters characterised by electrical ignition of the fuel
    • F23Q2/285—Lighters characterised by electrical ignition of the fuel with spark ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q2/00—Lighters containing fuel, e.g. for cigarettes
    • F23Q2/16—Lighters with gaseous fuel, e.g. the gas being stored in liquid phase
    • F23Q2/162—Lighters with gaseous fuel, e.g. the gas being stored in liquid phase with non-adjustable gas flame
    • F23Q2/163—Burners (gas valves)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q2/00—Lighters containing fuel, e.g. for cigarettes
    • F23Q2/16—Lighters with gaseous fuel, e.g. the gas being stored in liquid phase
    • F23Q2/164—Arrangements for preventing undesired ignition

Definitions

  • the present invention relates to an automatic flame extinguishing nozzle as disclosed in claims 1 and 2. It is common that a cigarette gas lighter is used normally for lighting cigarette for some seconds intermittently. However when occurs incomplete closing due to, for example dust, resulting in continuous and abnormal application, it will be heated excessively sometimes causing fire hazard. The present invention is to prevent this type of trouble.
  • a cigarette gas lighter has been widly used and accordingly its components have been manufactured with plastics so as to reduce cost price. Also a large quantity of disposable gas lighters have been manufactured, accordingly there is a tendency to occur more above type of trouble.
  • These types of gas lighter are not designed to have any cap for extinguishing flame, but only one mechanical valve, for which some fire hazard preventing means is required.
  • a shape memorizing component mounted in the nozzle restores an original shape and stops gas flow so as to extinguish residual flame.
  • No. 1 indicates a liquid gas tank and No. 1a shows an upper part of the tank 1.
  • No. 2 shows a nozzle for blowing out vaporized gas.
  • No. 3 shows a nozzle holder.
  • No. 3a shows a pass through orifice made on the bottom of nozzle holder.
  • No. 4 indicates a rubber valve located on the upper part of pass through orifice 3a.
  • No. 5 shows a threaded portion for mounting the holder 3 on the upper part of tank.
  • No. 6 shows an "O" ring mounted in the gap between the outer surface of nozzle holder and the inner surface of upper part of tank.
  • No. 7 indicates a nozzle opening lever connected with a neck portion 2b of nozzle 2 and supported by a pin 8 which elevates the nozzle 2 when the other end is pressed down.
  • No. 9 shows a filter for regulating flame height.
  • No. 10 shows a dust cover of sponge for preventing penetration of dust into the orifice 2a through the gap between the nozzle holder and the nozzle.
  • Said nozzle 2 can be risen to let gas flow into the gap between the nozzle 2a and the nozzle holder through the pass through orifice 3a when the lever 7 is pressed down, accordingly outgoing gas penetrates into the orifice 2a through orifices 2c so as to blow off through the nozzle 2.
  • lever 7 when the lever 7 is released to cease lighting operation and then returns back to former position so as to close the pass through orifice 3a stopping gas flow into the orifice 2a.
  • the nozzle 2 is inserted so as to be movable vertically in predetermined stroke.
  • the gas between the nozzle holder 3 and the upper part of tank 1a is hermetically sealed with the "O" ring 6 and 9.
  • the nozzle can be pulled up by operating a lever not illustrated and normally pressed down by the spring 14 so that the rubber valve 4 may close the inlet orifice.
  • the vaporized gas in the lower space of rubber valve 4 penetrates into the gap formed by the nozzle 2 and the nozzle holder 3, and then into the valve chamber 2a of nozzle and finally blows off from the nozzle 2.
  • the flowing quantity of gas and flame height can be increased by opening the distance between the filter fixer 11 and the bottom of nozzle holder by using a flame regulating lever not illustrated so as to reduce compression ratio of filter 6a. Also, in order to shorten the flame height, it is sufficient to tighten the nozzle holder fixer 12 by using a flame regulating lever not illustrated so as to compress the filter 6a for reducing the penetrating quantity of vaporized gas.
  • the present invention was developed considering above conditions and is to provide an automatic flame extinguishing nozzle for a gas lighter, whereby a fire hazard due to an extremely small flame apparently extinguished can be prevented by stopping gas flow by closing automatically an outlet orifice with sealing component or ruber valve actuated by actuator made of shape memorizing material working at higher temperature than the transformation point of said material after passing predetermined time.
  • Figure 1 to 7 illustrate vertical sections of automatic flame extinguishing nozzle according to the present invention.
  • FIG. 8 and 9 show vertical sections of prior art.
  • Figure 10 to 20 show various heat collectors to be connected with said automatic flame extinguishing nozzles.
  • a floating bar type core 15 inserted freely in a tube of thermo-deformable tube 16 is located in a valve chamber 2ao.
  • the lower end of nozzle is closed with a rubber valve 17.
  • vaporized gas penetrates into the orifice of nozzle 2a through an orifice 2c and blows out into the gap formed by the bar type core 15 and thermo-deformable tube 16.
  • thermo-deformable tube 16 shrinks in longitudinal and radial directions resulting in closing the gap between the inner wall of valve chabmer 2ao and floating bar type core so as to stop gas flow as illustrated in the Figure 1 (b).
  • the floating bar type core 15 is made of thermo-deformable material also so as to deform more in radial direction when overheated, more rapid and firm function can be expected.
  • thermo-expansible tube in radial direction is used contrary to the embodiment illustrated in the Figure 1 (a), wherein a thermo-shrinkable tube is used.
  • a thermo-expansible tube is inserted so as to lightly fix on the bar type core 15.
  • the tube 16 shrinks in longitudinal direction and expands in radial direction so as to get better effect and fills the gap between the inner wall of valve chamber 2ao and bar type 15 so as to stop gas flow.
  • the bar type core 15 is made of thermo-deformable material so as to expand in radial direction when the temperature rises, the same effect can be obtained as in the embodiment illustrated in the Figure 1 (a) and (b).
  • a bar type core is made of thermo-shrinkable plastic, which is of large diameter at high temperature as illustrated in the Fiugure 3 (b) and is located in the valve chamber 2ao with an "O" ring 10 so as to let gas flow at normal temper- ature, it shrinks in longitudinal direction when the nozzle is abnormally heated and expands in radial direction expanding the "O" ring externally put on the core 18.
  • the gap between the inner wall of the valve chamber and the "O" ring is closed stopping gas flow in the gap.
  • another bar type core 21 is made of shape memorizing plastic in such original dimension that may close the orifice in the valve chamber 2ao at higher temperature than the transformation point by expanding in longitudinal direction as illustrated in the Figure 5 (b).
  • This core is compressed and is put in the valve chamber 2ao as illustrated in the Figure 5 (a).
  • the core restores the original shape expanding in longitudinal direction closing the orifice 2a.
  • a coil 22 is made of shape memorizing alloy so as to expand more than the lower part of orifice at higher temperature than the transformation point.
  • valve chamber 2ao It is compressed and inserted in the valve chamber 2ao jointly with a valve 23 on top so as to let gas flow at normal temperature.
  • the coil 22 restores the original shape and expands as illustrated in the Figure 6 (b) closing the lower part of orifice 2a with the valve 23. In consequence, gas flow in the orifice 2a can be stopped extinguishing flame.
  • the nozzle 2 may be designed in another type which corresponds to the basic type in the Figure 6, where the positions of valve 23a are illustrated with double chain lines.
  • valve 23a closes the outlet orifice 2a or an inlet orifice 2f.
  • a rubber valve 2e is provided on an end plug 2d.
  • a spiral coil made of shape memorizing alloy 22a is mounted in the valve chamber 2ao so as to hold the rubber valve 23a on the top.
  • the coil 22a expands at higher temperature than the transformation point so as to close the inlet orifice 2f of end plug 2d with the rubber valve 2e. At normal temperature, the coil is compressed to reduce its length and mounted in the valve chamber 2ao.
  • the coil 22a made of shape memorizing alloy is used after giving unidirectionability, it is necessary to use a return spring so as to restore lighting position after stopping gas flow.
  • a return spring 24 is used as illustrated in the Figure 7 (B).
  • a common spring may be used and a spring made of shape memorizing alloy which works inversely in relation to the transformation point may be used too.
  • valve aforementioned are controllable by selecting nozzle with different type of valve or valve actuator, also by selecting various types of heat collecting and transmitting device to be explained now.
  • Figure 10 illustrates an auxiliary bridge type flame heat collector 35 incorporated with nozzle head 2, whereby flame heat can be collected by the collector and transmitted directly to the nozzle to actuate valve.
  • Figure 11 illustrates an auxiliary fin type flame heat collector 36 incorporated with nozzle head 2.
  • Figure 12 shows an auxiliary tongue-formed flame heat collector 60 pressed in the outlet orifice of nozzle 2a.
  • flame heat can be collected and transmitted rather slowly than the bridge type and fin type heat collectors aforementioned.
  • Figure 13 illustrates an auxiliary cap type heat collector 71 pressed in the top of nozzle 2, where the combustion chamber works as a flame heat collector.
  • Figure 14 shows an auxiliary rod type flame heat collector 65 fixed on the extension 71d of nozzle heat collector aforementioned, of which point is located in an internal combustion chamber 49,which is made of, for example less thermal conductive material such as ceramics. Flame heat can be collected by the upper part of heat collecting rod 65 inserted in the internal combustion chamber 49 and transmitted to the extension 71d of nozzle.
  • Figure 15 shows an auxiliary coil type heat collector 63 mounted on the extension 52c of nozzle.
  • the upper part of coil is mounted on the lower part of combustion chamber 49, where air inlet orifices 55 are provided.
  • auxiliary rod type heat collector 65 illustrated in the Figure 16, a heat collecting rod 65 is fixed on the extension 52c of nozzle so as to keep good thermal conductivity. Thus flame heat can be collected by the upper part of rod and transmitted directly to the nozzle. When the second nozzle is elevated by operating lever, the flame heat collecting rod is pushed up to the combustion chamber 49.
  • Figure 17 a and 17 b show an auxiliary crown type heat collector 64 mounted on the extension 52c of nozzle, of which heat collecting fingers 64a are pressed on the outer and lower part of combustion chamber 49. Flame heat collected by the Lower part of combustion chamber 49 can be transmitted to the nozzle through fingers 64a.
  • Figure 17 c and d show cylinder type heat collector also to be mounted in the same way.
  • Figure 18 a and b show various types of nozzle point, which are notched vertically or horizontally, or perforated so as to divide gas flow to get higher temperature in the proximity of nozzle so that flame heat may be collected and transmitted to valve or valve actuator through the nozzle.
  • Figure 19 shows an auxiliary coil type gas flow divider 37 whereby flame heat collected by the coil 37 is transmitted to the nozzle 2.
  • Figure 20 shows an auxiliary coil type flame heat collector 38a made of shape memorizing alloy and incorporated with the upper part of valve actuating coil 38b made of shape memorizing alloy, of which top is projecting on the top of nozzle 2.
  • flame heat collected by the collecting coil 38a can be transmitted directly to the coil type valve actuator 38b.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lighters Containing Fuel (AREA)

Abstract

Un ajutage à extinction automatique de la flamme pour briquets à gaz comprend une soupape ou organe d'actionnement d'une soupape en caoutchouc en un matériau à effet de mémoire qui fonctionne à une température supérieure au point de transformation dudit matériau, monté dans une cavité de soupape de façon à permettre au gaz de s'écouler à la température normale. L'ajutage compte également un organe collecteur et transmetteur de la chaleur de la flamme, qui ferme un orifice de sortie du gaz ou du liquide à des températures anormalement élevées.

Claims (7)

  1. Une buse d'extinction automatique de flamme pour un briquet à gaz, caractérisée en ce que la buse comprend des moyens formant soupape réalisés en une matière à mémoire de forme travaillant à une température plus élevée que le point de transformation de ladite matière, lesdits moyens formant soupape étant montés dans une chambre de soupape formée dans la buse, de façon à laisser l'écoulement de gaz à la température normale et à rétablir une forme d'origine mémorisée pour fermer un orifice de sortie de gaz à ladite température plus élevée.
  2. Une buse d'extinction automatique de flamme pour un briquet à gaz, caractérisée en ce qu'un actionneur de soupape, fait en matière à mémoire de forme travaillant à une température plus élevée que le point de transformation de ladite matière, est monté dans une chambre de soupape formée dans la buse, de façon à laisser l'écoulement de gaz à la température normale et à rétablir une forme d'origine mémorisée pour actionner la soupape pour obturer un orifice de sortie de gaz à ladite température plus haute.
  3. Une buse d'extinction automatique de flamme pour un briquet à gaz selon la revendication 1 ou 2, caractérisée en ce que la buse est métallique.
  4. Une buse d'extinction automatique de flamme pour un briquet à gaz selon la revendication 1 ou 2, caractérisée en ce qu'elle comprend un moyen auxiliaire de transmission de chaleur pour collecter et transmettre la chaleur de flamme à des composants de fermeture de gaz.
  5. Une buse d'extinction automatique de flamme pour un briquet à gaz selon la revendication 1 ou 2, caractérisée en ce que la portion de sommet de la buse est encochée ou perforée de façon à diviser l'écoulement de gaz.
  6. Une buse d'extinction automatique de flamme pour un briquet à gaz selon la revendication 4, caractérisée en ce que ledit moyen auxiliaire collecteur de chaleur de flamme et transmetteur comprend un dispositif collecteur de chaleur de flamme et transmetteur, du type en pont, du type à ailette, en forme de languette, du type à capuchon, du type à tige, du type à enroulement, du type à couronne ou du type à tube, monté au sommet de la buse sur le prolongement de ladite buse ou sur le prolongement du capuchon collecteur de chaleur et transmetteur monté sur le sommet de la buse.
  7. Une buse d'extinction automatique de flamme pour un briquet à gaz selon la revendication 2, caractérisée en ce que ledit actionneur de soupape est un actionneur de soupape du type à enroulement fait en alliage à mémoire de forme.
EP19900903398 1989-02-15 1990-02-14 Ajutage a extinction automatique de la flamme et organe collecteur de chaleur pour briquets a gaz Expired - Lifetime EP0411154B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP3896289A JPH02217715A (ja) 1989-02-15 1989-02-15 ガスライター
JP38962/89 1989-02-15
JP27950/90 1990-02-07
JP2027950A JPH0627580B2 (ja) 1990-02-07 1990-02-07 ガスライター

Publications (2)

Publication Number Publication Date
EP0411154A1 EP0411154A1 (fr) 1991-02-06
EP0411154B1 true EP0411154B1 (fr) 1994-01-19

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Application Number Title Priority Date Filing Date
EP19900903398 Expired - Lifetime EP0411154B1 (fr) 1989-02-15 1990-02-14 Ajutage a extinction automatique de la flamme et organe collecteur de chaleur pour briquets a gaz

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Country Link
EP (1) EP0411154B1 (fr)
WO (1) WO1990009553A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2557969Y2 (ja) * 1992-07-27 1997-12-17 忠道 服部 ガスライター用燃焼ノズル

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2286347A1 (fr) * 1974-09-24 1976-04-23 Genoud & Cie Ets Perfectionnement aux briquets a gaz automatiques

Also Published As

Publication number Publication date
EP0411154A1 (fr) 1991-02-06
WO1990009553A1 (fr) 1990-08-23

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