FR2500587A1

FR2500587A1 - Gas cigarette-lighter valve - has cylindrical body with notched top collar fitting round cylindrical boss

Info

Publication number: FR2500587A1
Application number: FR8103496A
Authority: FR
Original assignee: Individual
Current assignee: Individual
Priority date: 1981-02-23
Filing date: 1981-02-23
Publication date: 1982-08-27

Abstract

The gas cigarette-lighter valve has a round externally-notched component turned by hand to adjust flame height and screwing into another component to compress a porous elastic washer between two jaws. A manoeuvrable burner shuts off the gas escaping from the centre of a seat closed by a rubber valve fixed to it. The cylindrical valve body (1) has a collar at the top forming the notched portion (3) and fits round a cylindrical boss (5) whose top face is flush with the notched portion and forms the seat, while its inner face (10) forms the jaw compressing the washer (11). The other jaw (12) is on the top of a fixed tubular base (13) screwed into a skirt extending the boss at the bottom. The washer is supplied with liquefied gas under pressure from the bottle.

Description

La présente invention est relative aux briquets à gaz, plus particulièrement aux valves dont sont munis les briquets jetables.Ella a pour but de rendre ces valves moins compliques à fabriquer et à assembler,gràce à une nouvelle disposition des é- léments qui les constituent et qui supprime les inconvénients actuellement connus. The present invention relates to gas lighters, more particularly to the valves with which disposable lighters are fitted. Its purpose is to make these valves less complicated to manufacture and assemble, thanks to a new arrangement of the elements which constitute them and which eliminates the currently known drawbacks.

Les valves actuelles sont constituées essentiellement d'éléments superposés,particulièrement le brùleur muni à sa partie inférieure d'un clapet en caoutchouc reposant sur un siège au centre duquel se trouve l'orifice d'un canal fin duquel s'échappe librement le gaz combustible préalablement détendu par son passage à travers un organe détendeur placé sous le siège du clapet.Cette disposition laisse très peu de place entre le siège proprement dit et ce qui l'entoure pour que les fonctions obligatoires des éléments constituant la valve puissent être réalisés
En effet il faut réaliser un clapet en caoutchouc matériellement fabriquable et assemblable sur l'extrémité inférieure du brùleur, laisser autour de ce clapet la place pour permettre au gaz détendu,lors de l'ouverture du clapet,de s'échapper latéralement afin d'être canalisé vers la sortie supérieure du brùleur manoeuvrable en vue de son inflammation par tous moyens connus,assurer l'étanchéité autour du brùleur manoeuvrable par son déplacement longitudinal,assurer une stagnation minimum de gaz en phase liquide dans l'organe détendeur et autour de celui-ci pendant tout le temps où la valve reste fermée de façon à éviter un saut de flamme lors de son ouverture et enfin assurer une fabrication des éléments constitutifs de la valve,par moulage par injection de Zamac car c'est la technique la moins chère de fabrication de masse,actuellement: toute pièce décolletée étant supprimée.The current valves consist essentially of superimposed elements, particularly the burner provided at its lower part with a rubber valve resting on a seat in the center of which is the orifice of a fine channel from which the combustible gas freely escapes previously relaxed by its passage through a pressure reducing valve placed under the valve seat. This arrangement leaves very little space between the seat itself and that which surrounds it so that the mandatory functions of the elements constituting the valve can be realized.
Indeed, it is necessary to make a rubber valve materially manufacturable and assembled on the lower end of the burner, leave around this valve the place to allow the relaxed gas, during the opening of the valve, to escape laterally in order to be channeled towards the upper outlet of the maneuverable burner with a view to igniting it by any known means, ensure sealing around the maneuverable burner by its longitudinal displacement, ensure minimum stagnation of gas in the liquid phase in the expansion member and around that -this during all the time when the valve remains closed so as to avoid a jump of flame during its opening and finally ensuring a manufacture of the constituent elements of the valve, by injection molding of Zamac because it is the cheapest technique mass production, currently: any turned part being removed.

On supprime d'un coup une partie importante des inconvénients décrits en utilisant un brùleur tel que celui décrit dans le brevet français numéro I 604 280 du 28 Novembre I968. A major part of the drawbacks described is eliminated at once by using a burner such as that described in French patent number I 604 280 of November 28, 1968.

La nouvelle valve de l'invention associe le brùleur du brevet mentionné à une valve classique dont la disposition générale est modifiée,ce qui assure toutes les fonctions indispensables en supprimant en même temps les difficultées techniques rencontrées actuellement,qutil s'agisse de fabriquer les éléments constituant la valve aussi bien que d'assembler ces éléments entre eux et d'incorporer la valve dans le réservoir du briquet. The new valve of the invention combines the burner of the patent mentioned with a conventional valve whose general arrangement is modified, which ensures all the essential functions while at the same time eliminating the technical difficulties encountered today, whether it is a question of manufacturing the elements constituting the valve as well as assembling these elements together and incorporating the valve into the lighter tank.

La valve de l'invention comprend une partie circulaire crantée extérieurement que l'on peut faire tourner manuellement sur elle-même denuis l'extérieur du briquet afin de régler par cette rotation la hauteur de la flaeme,un organe détendeur constitué par une rondelle poreuse élastique prise en sandwich entre deux mâchoires dont l'une au moins peut être rapprochée ou éloignée de l'autre par l'action rotative de deux organes vissés l'un dans l'autre et dont l'un au moins,mobile,comporte ladite partie circulaire crantée extérieurement alors que l'autre,fixe,est rendu solidaire d'une façon étanche d'un réservoir rempli de gaz combustible liquéfié sous pression,l'autre mâchoire étant ellemême prise en sandwich entre les deux organes vissés l'un dans l'autre,une communication étant établie entre l'intérieur du réservoir et l'organe détendeur,un bruleur manoeuvrable permettant d' ouvrir ou fermer le gaz détendu s'échappant librement hors de 1' orifice d'un canal situé au centre d'un siège sur lequel peut être appliqué un clapet en caoutchouc solidaire du brùleur,caractérisée en ce que le corps de valve,cylindrique,est muni à sa partie supérieure d'un collet rabattu constituant ladite partie crantée extérieurement et comportant un logement cylindrique tubulaire concentrique entourant un bossage cylindrique tubulaire coaxial dont la paroi supérieure,par sa face externe située sensiblement au même niveau que la face supérieure de ladite partie crantée,const.itue ledit siège de clapet au centre duquel est prévu le canal précité alors que sa face interne constitue l'organe mobile,la mâchoire mobile précités destinée à comprimer plus ou moins organe détendeur précité contre l'autre mâchoire précité qui est elle-même prise en sandwich entre ladite m choire mobile et l'extrémité supérieure d'une embase tubulaire fixe,cette extrémité étant introduite dans ledit bossage et vissée dans une jupe tubulaire qui le prolonge en constituant son extrémité inférieure,un brùleur du type décrit dans le brevet français numéro I 604 280 du 28 Novembre I968 étant associé aux dispositions précédentes pour assurer la fermeture et l'ouverture du gaz par déplacement longitudinal de celui-ci gràce à des moyens connus, des moyens étant prévus pour alimenter l'organe détendeur en gaz liquide,pour assurer l'étanchéité complète de la valve montée, pour rendre l'embase précitée solidaire d'une façon étanche d'un réservoir remnli de gaz liquide et enfin pour assurer la communication entre l'organe détendeur et le fond du réservoir. The valve of the invention comprises an externally notched circular part which can be manually rotated on itself from outside the lighter in order to adjust by this rotation the height of the flaeme, a regulating member constituted by a porous washer. elastic sandwiched between two jaws, at least one of which can be moved towards or away from the other by the rotary action of two members screwed into one another and of which at least one, movable, comprises said circular part notched externally while the other, fixed, is made integral in a sealed manner with a tank filled with pressurized liquefied combustible gas, the other jaw being itself sandwiched between the two organs screwed in the other, a communication being established between the interior of the tank and the expander member, a maneuverable burner making it possible to open or close the expanded gas escaping freely from the orifice of a channel located in the center of a seat r which can be applied a rubber valve integral with the burner, characterized in that the valve body, cylindrical, is provided at its upper part with a folded collar constituting said notched part externally and comprising a concentric cylindrical tubular housing surrounding a boss coaxial tubular cylindrical, the upper wall of which, by its external face situated substantially at the same level as the upper face of said notched part, constitutes said valve seat in the center of which the aforementioned channel is provided while its internal face constitutes the member movable, the aforementioned movable jaw intended to compress more or less the aforementioned expansion member against the aforementioned other jaw which is itself sandwiched between said movable jaw and the upper end of a fixed tubular base, this end being introduced in said boss and screwed into a tubular skirt which extends it by constituting its lower end, a burner of the dec type laughs in the French patent number I 604 280 of November 28, I968 being associated with the preceding provisions to ensure the closing and the opening of the gas by longitudinal displacement of this one thanks to known means, means being provided to feed the organ liquid gas pressure regulator, to ensure complete tightness of the mounted valve, to make the above-mentioned base securely attached to a tank filled with liquid gas and finally to ensure communication between the pressure regulator member and the bottom of the tank.

L'invention pourra être mieux comnrise à l'aide du complément de description qui suit ainsi que du dessin unique annexé qui montre une valve selon 'invention,vue en couDe longitudinale et placée dans le réservoir d'un briquet jetable. The invention can be better understood with the aid of the additional description which follows as well as of the single appended drawing which shows a valve according to the invention, seen in longitudinal section and placed in the reservoir of a disposable lighter.

On réalise un corps de valve I par moulage,sur un moule multi-empreintes,de Zamak,par injection sous pression.Ce corps
I cylindrique est muni à sa partie supérieure d'un collet 2 rabattu pour constituer une partie circulaire crantée en 3 extérieu rement et comportant un logement cylindrique tubulaire concentrique 4 entourant un bossage cylindrique tubulaire 5 co-axial dont la paroi supérieure 6 par sa face externe située sensiblement au même niveau que la face supérieure 7 de ladite partie crantée 3 constitue ledit siège de clapet 8 au centre duquel est prévu le canal 9 alors que sa face interne IO constitue l'organe mobile précité qui constitue simultanément la mâchoire mobile destinée à comprimer plus ou moins un organe détendeur II contre l'autre mâchoire I2 précitée qui est elle-m & e prise en sandwich entre la mâchoire mobile IO qui n'est qu'une partie du corps I de la valve et l'extrémité supérieure 13 d'une embase tubulaire 13 a, qui sera rendue fixe comme il sera expliqué plus loin.0n introduit ladite extrémité I3 dans le bossage 5 par dessous et on visse cette embase I3 a, dans une jupe tubulaire I5 qui prolonge le bossage en constituant son extrémité inférieure.L'embase est réalisée par moulage Zamak,et la partie filetée I4 est réalisée par reprise après moulage.Il en est de même pour la partie filetée I4 dans la jupe I5 prolongeant le bossage 5.A valve body I is produced by molding, on a Zamak multi-cavity mold, by pressure injection.
I cylindrical is provided at its upper part with a collar 2 folded down to constitute a circular part notched in 3 externally and comprising a concentric tubular cylindrical housing 4 surrounding a coaxial tubular cylindrical boss 5 whose upper wall 6 by its external face located substantially at the same level as the upper face 7 of said notched part 3 constitutes said valve seat 8 in the center of which the channel 9 is provided while its internal face IO constitutes the aforementioned movable member which simultaneously constitutes the movable jaw intended to compress more or less a pressure reducer II against the other jaw I2 mentioned above which is itself sandwiched between the movable jaw IO which is only a part of the body I of the valve and the upper end 13 d 'a tubular base 13 a, which will be made fixed as will be explained below. 0n introduces said end I3 into the boss 5 from below and this base I3 a is screwed into a tubula skirt ire I5 which extends the boss by constituting its lower end. The base is made by Zamak molding, and the threaded part I4 is made by recovery after molding. It is the same for the threaded part I4 in the skirt I5 extending the boss 5.

La mâchoire I2 est moulée en Zamak sous pression. The I2 jaw is molded in Zamak under pressure.

Un brùleur I6 du type décrit dans le brevet français numéro I 604 286 du 28 Novembre 1968 comporte un clapet en caoutchouc I7 et se place simplement dans le logement annulaire 4 prévu à cet effet,le clapet I7 venant recouvrir le siège 8 pour fermer le gaz.Ce brùleur I6 peut,par exemple être soulevé par une action manuelle,ce qui ouvre la gaz,selon des dispositions connues telles qu'un levier.Le brùleur I6 est moulé par injection, en Zamak. A burner I6 of the type described in French patent number I 604 286 of November 28, 1968 has a rubber valve I7 and is simply placed in the annular housing 4 provided for this purpose, the valve I7 covering the seat 8 to shut off the gas. This burner I6 can, for example be lifted by manual action, which opens the gas, according to known arrangements such as a lever. The burner I6 is injection molded, in Zamak.

La mâchoire I2 est réalisée de façon à laisser un jeu annulaire entre son diamètre cylindrique et l'alésage cylindrique constituant l'intérieur du bossage 5,ceci pour permettre au gaz liquide d'atteindre la périphérie de l'organe détendeur II en l'alimentant ainsi correctement. The jaw I2 is produced so as to leave an annular clearance between its cylindrical diameter and the cylindrical bore constituting the interior of the boss 5, this to allow the liquid gas to reach the periphery of the expansion member II by supplying it well correctly.

La communication entre le fond du réservoir 21 et l'organe détendeur II est réalisée par l1;tnsertion dans l'alésage cylindrique 22 de l'embase I3 a, d'un tube plongeur 23 régnant jusqu'au voisinage du fond du réservoir de façon à alimenter l'organe détendeur II en gaz liquide par une fente 18 placée à l'extrémité supérieure 13 de l'embase I3 a, juste sous la. face inférieure de la mâchoire I2 qui repose librement sur la face su nérieure,plane,tubulaire,de l'extrémité 13 de l'embase.Ainsi 1' organe détendeur II est alimenté annulairement depuis le fond du réservoir,par du gaz en phase liquide. The communication between the bottom of the tank 21 and the expansion valve member II is carried out by l1; insertion into the cylindrical bore 22 of the base I3 a, of a dip tube 23 prevailing up to the vicinity of the bottom of the tank so to supply the regulator member II with liquid gas through a slot 18 placed at the upper end 13 of the base I3 a, just below the. underside of the jaw I2 which rests freely on the anterior, flat, tubular face of the end 13 of the base. Thus the regulator member II is supplied annularly from the bottom of the tank, by gas in liquid phase .

La valve ainsi décrite étant assemblée se place dans un alésage cylindrique prévu dans la partie supérieure d'un réservoir moulé en matière plastique.Une bague torique 24 prise radialement entre le diamètre extérieur de la jupe 15 et la paroi de l'alésage cylindrique mentionné,assure l'étanchéité complète. The valve thus described being assembled is placed in a cylindrical bore provided in the upper part of a molded plastic tank. An O-ring 24 taken radially between the outside diameter of the skirt 15 and the wall of the cylindrical bore mentioned, ensures complete sealing.

L'embase I3 a, comporte dans sa partie inférieure,cylindrique,des cannelures 20 et une partie cynique 25.0n emmanche à force l'embase dans un alésage cylindrique lisse que comporte le réservoir,ce qui rend cette embase solidaire dudit réservoir et assure simultanément l'étanchéité tout en bloquant l'embase contre toute possibilité de rotation sur elle-même. The base I3 a has, in its lower, cylindrical part, grooves 20 and a cynical part 25.0n forcibly engages the base in a smooth cylindrical bore which the tank comprises, which makes this base integral with said tank and simultaneously ensures sealing while blocking the base against any possibility of rotation on itself.

Le fonctionnement de la valve ainsi enfoncée dans la partie supérieure d'un réservoir de briquet à gaz de type jetable,est le suivant
le liquide du réservoir monte sous pression dans le tube plongeur 23,remplit l'espace cylindrique situé sous la mâchoire I2,atteint l'espace annulaire entourant cette mâchoire en tra- versant la fente I8 et atteint l'organe détendeur II.Le gaz est alors détendu par son passage à travers le détendeur dont la compression dépend du réglage manuel fait par la rotation des crans 3 dont est muni le corps de valve I.Lorsque le brùleur 16 est ouvert,le gaz s'échappe librement par celui-ci dans l'atmosphère pour y 8tre enflammé par tous moyens déja connus. The operation of the valve thus inserted in the upper part of a disposable type gas lighter tank is as follows
the liquid in the reservoir rises under pressure in the dip tube 23, fills the cylindrical space located under the jaw I2, reaches the annular space surrounding this jaw by passing through the slot I8 and reaches the pressure-reducing member II. then relaxed by its passage through the regulator whose compression depends on the manual adjustment made by the rotation of the notches 3 which is provided with the valve body I. When the burner 16 is open, the gas freely escapes through it in the atmosphere to be ignited by any means already known.

Claims

REVENI) ICATIONS

I 604 280 of November 28, I968 being associated with the preceding arrangements to ensure the closing and the opening of the gas rar longitudinal displacement of this one thanks to known means, means being provided to supply the expander member with liquid gas, for ensure complete sealing of the mounted valve, to make the aforementioned base integral in a sealed manner with a tank filled with liquid gas and finally to ensure communication between the expansion member and the bottom of the tank.

end being introduced into said boss and screwed into a tubular skirt which extends it constituting its lower end, a burner of the type described in French patent number

I- Valve for gas lighter comprising an externally notched circular part which can be rotated manually on itself from the outside of the lighter in order to adjust by this rotation the height of the flame, a regulating member constituted by an elastic porous washer sandwiched between two jaws, at least one of which can be moved towards or away from the other by the rotary action of two members screwed into each other and of which at least one is movable , comprises said circular portion notched outwardly while the other, fixed, is made integral in a sealed manner with a tank filled with fuel gas liquefied under pressure, the other jaw being itself sandwiched between the two screwed members one inside the other, a communication being established between the interior of the tank and the expansion valve, a maneuverable burner allowing to open or close the expanded gas escaping freely outside the orifice of a channel located in the center of a if leg on which can be applied a rubber valve integral with the burner, characterized in that the valve body, cylindrical, is provided at its upper part with a folded collar constituting said notched part externally and comprising a concentric tubular cylindrical housing surrounding a co-axial tubular cylindrical boss, the upper wall of which, by its external face situated substantially at the same level as the upper face of said notched part, constitutes said valve seat in the center of which the aforementioned channel is provided while its internal face constitutes movable member, the aforementioned movable jaw, intended to more or less compress the aforementioned expansion member against the other aforementioned jaw which is itself sandwiched between said movable jaw and the upper end of a fixed tubular base, this

2- Valve according to claim I, characterized in that a means provided for supplying the aforementioned expansion member, in liquid gas, consists on the one hand of leaving by construction sufficient annular clearance under this expansion member so that it can be fed from below and on the other hand to provide the upper tubular end I3 with a slot at least I8, radial, which ensures communication between the interior of said base and the annular space placed under the expansion member II.

3- Valve according to claim 17 characterized in that a means provided for ensuring the complete sealing of the mounted valve, consists in interposing between the outer diameter of the aforementioned skirt 15 and the cylindrical bore of the part of the lighter intended to receive said valve, a rubber O-ring 24.

4- Valve according to claim I, characterized in that a means provided to make the above-mentioned base integral in a sealed manner with a tank filled with liquid gas consists in fixing the lower part of said base, with grooves intended, during the press fit of the base in the lighter, ensure on the one hand the seal by tightening and on the other hand the solidarity by the press fit.

5- Valve according to claim I, characterized in that a means provided for ensuring comnu: iication between the regulator member and the bottom of the aforementioned tank, consists in providing the aforementioned base with a dip tube prevailing to the vicinity from the bottom of the tank, which feeds the expander member.