EP1271055B1 - Briquet à l'épreuve des enfants - Google Patents

Briquet à l'épreuve des enfants Download PDF

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Publication number
EP1271055B1
EP1271055B1 EP02013568A EP02013568A EP1271055B1 EP 1271055 B1 EP1271055 B1 EP 1271055B1 EP 02013568 A EP02013568 A EP 02013568A EP 02013568 A EP02013568 A EP 02013568A EP 1271055 B1 EP1271055 B1 EP 1271055B1
Authority
EP
European Patent Office
Prior art keywords
pole portion
handle
movable frame
piezoelectric
ignition trigger
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
EP02013568A
Other languages
German (de)
English (en)
Other versions
EP1271055A3 (fr
EP1271055A2 (fr
Inventor
Lixiang Mao
Dongliang Li
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.)
NINGBO FEIXIANG ELECTRIC CO LT
Ningbo Feixiang Electric Co Ltd
Original Assignee
NINGBO FEIXIANG ELECTRIC CO LT
Ningbo Feixiang Electric 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 CN01246127U external-priority patent/CN2483618Y/zh
Priority claimed from CNB021116083A external-priority patent/CN1173126C/zh
Application filed by NINGBO FEIXIANG ELECTRIC CO LT, Ningbo Feixiang Electric Co Ltd filed Critical NINGBO FEIXIANG ELECTRIC CO LT
Publication of EP1271055A2 publication Critical patent/EP1271055A2/fr
Publication of EP1271055A3 publication Critical patent/EP1271055A3/fr
Application granted granted Critical
Publication of EP1271055B1 publication Critical patent/EP1271055B1/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
    • F23Q2/287—Lighters characterised by electrical ignition of the fuel with spark ignition piezoelectric
    • 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

  • This present invention relates to a lighter, and more particularly to a childproof lighter fitted with locker device for preventing under age children from the usage of the lighter, ie, the lighter can not be ignited if the user just depresses the ignition trigger in a normal way.
  • a lighter is known from document US-A-6 217 313.
  • a conventional lighter comprises a handle for holding the lighter and an ignition tube extending outward from the top end of the handle, where a liquefied gas chamber and its valve unit, piezoelectric unit as well as an ignition trigger are provided inside the handle, and inside the liquefied gas chamber is filled with liquefied flammable gas, when depressing the ignition trigger, the gas valve opens, and in the meantime, the piezoelectric unit generates electric spark at the ignition tube tip through wire connection, consequently, if the ignition trigger keeps depressed, flame can be maintained at the ignition tube tip, this operation is very convenient indeed.
  • the ignition tube of the lighter is extending outward and distancing itself from human hand that holds the handle, it is much safer than match, lighter and other kinds of igniter, and more flexible, that is why it is favored by many people and widely used on various kinds of occasions, for example, it is used in kitchen for igniting fuel gas kitchen range, for igniting bonfire when picnicking outside, for igniting birthday candles in a party, and so forth.
  • it is because of its easy operability and its resembling to a toy in terms of its appearance, function and manner of usage, children are tend to play with it, causing unwanted accidental ignition and safety trouble.
  • lighter with enhanced lock switch was designed to automatically reset its lock switch, ie, when the lighter is not used or after it is used, its lock switch is always kept in the locking position, this lighter is divided into two basic categories, ignition trigger is locked in the first category to prevent the trigger from being depressed accidentally, an example of such lighter is the scheme disclosed by US Patent US6126437; gas valve of the fuel gas chamber is locked in the other category so to prevent the gas valve from being opened in normal manner, an example of such lighter is the scheme disclosed by US Patent US6217313.
  • the former imposes considerably high requirement on its manufacture and assembly, because if the lock switch is not installed in right place, the ignition trigger might not be locked or the ignition trigger can not be depressed.
  • a main object of the present invention is to provide a childproof lighter for preventing under age children from using it, wherein the lighter is normally maintained in a locking position when left unused or after being used, and electric sparks will not be generated if only the ignition trigger is depressed due to accidentally operation.
  • Another object of the present invention is to provide a childproof lighter wherein the fuel gas valve will not emit flammable gas if only the ignition trigger is depressed due to accidental operation.
  • this childproof lighter comprises a handle for holding the lighter and an ignition tube extending outward, where a liquefied gas chamber and its valve unit as well as piezoelectric unit are provided in the handle and ignition trigger is fitted in the belly position of the handle and exposed from the handle, whereby a safety device is provided inside the handle, and includes the: the features of the characterising clause of claim 1.
  • this invention takes advantage of the principle that piezoelectric lighting requires the piezoelectric bonnet of the piezoelectric unit be depressed a certain stroke, which is controlled by the varying thickness of the head portion of the transverse pole portion of the movable frame so that it can not be pressed down in full stroke under abnormal igniting status, thereby, the lighter will not be damaged by a children who plays with it and keeps depressing the ignition trigger.
  • the vertical pole portion of the movable frame will not be able to press down the free end of the lever even if it is wrongly operated, and the gas valve can not emit gas, thus completely preventing safety trouble from occurring.
  • the first preferred embodiment of the present invention comprises a handle 3 and an extended ignition tube 1, where handle 3 comprises two split casings and the extended ignition tube 1 is fixed to the protruding portion 31 on top end of the handle 3 by fixing sleeve;
  • the said handle 3 is fitted with a protruding stopper 33 on its inner wall in a position corresponding with ignition trigger bottom 44, and the distance between them is slightly smaller than the piezoelectric igniting stroke of the piezoelectric bonnet 91 of the piezoelectric unit.
  • item 61 is the flame adjusting button
  • items 93 and 92 are wires respectively connecting positive pole and negative pole of the piezoelectric unit 9, and other ends of these two wires extend up to the tip of ignition tube 1 (not shown in the figure);
  • item 46 is the side panel of ignition trigger 4.
  • the thicker portion 82b of head end of the transverse pole portion 82 of the movable frame 8 is inserted between the piezoelectric bonnet 91 of the piezoelectric unit 9 and the middle protruding portion 42 of the ignition trigger, to allow the piezoelectric bonnet 91 to have an advance stroke, then, if the ignition trigger 4 is depressed, the piezoelectric bonnet 91 will reach an ignition stroke causing the piezoelectric unit 9 to ignite, and allow electric sparks to be generated by the spark generating components (not shown in the figure) fitted at the ignition tube tip through connecting wire 92 (ground wire) and 93 (positive pole); in the meantime, the lower end of vertical pole portion81 of the movable frame depresses the free end 62a of the lever 62, causing the gas valve 63 to open, and deliver gas to the tip of ignition tube 1 through gas pipe 64, which generates flame when meeting electric sparks.
  • a short transverse pole portion 83 may be provided on the vertical pole portion 81 on the side far away from the piezoelectric unit to run parallel with the transverse pole portion 82 so as to increase the strength, then, the folded side 82c of the tail end of the previous transverse pole portion 82 also changes into short vertical pole portion 84 connecting transverse pole portion 82 and short transverse pole portion 83; a protruding pillar 83a is provided under the tail end of the short transverse pole portion 83, and a stopper 34 (refer to Figures 9 and 10) is provided on the inner wall of handle 3 in a corresponding position, so that in igniting status, this pillar 83a comes in contact with stopper 34, locking the movable frame 8 in fixed position without backing up, thereby reversion force of the compression spring 7 is overcome, thus, reducing finger pressing force on the push button 51.
  • a protruding pillar 81a may be provided on the vertical pole portion81 on the side opposite to the compression spring 7, which is fixed on the said pillar 81a.
  • a pusher button 52 is used to replace the previous push button 51, whose head end 52a has a center recess that is intended to press against the tail end of transverse pole portion 82 of the movable frame (where the short vertical pole portion 84 is slightly different when compared with Figure 7), and there is a gradual change between the center recess portion and protruding portion above, the tail end 52b of the pusher button 52 being exposed out of the installation hole corresponding with the handle.
  • the pusher button 52 is pushed downward along the back of the handle, and the short vertical pole portion 84 at the tail end of the movable frame then changes from previously pressing against the center recess of the head portion 52a of the pusher button to pressing against its upper bevel surface, finally, pressing against the top convex of the head portion 52a of the pusher button, during which, the entire movable frame 8 moves towards the piezoelectric unit, so that the thicker portion of head end of transverse pole portion 82 of the movable frame 8 is inserted between the piezoelectric bonnet 91 of the piezoelectric unit 9 and the middle protruding portion 42 of the ignition trigger, to allow the piezoelectric bonnet 91 to have an advance stroke, then, if the ignition trigger 4 is depressed, the piezoelectric bonnet 91 will reach an ignition stroke causing the piezoelectric unit 9 to ignite, and allow electric sparks to be generated by the spark generating components (not shown in the figure) fitted at the ignition tube tip through connecting wire
  • the movable frame 8 would not move toward the back of the handle even if pusher button 52 is pushed upward, so that users can easily operate the lighter for lighting purpose; in the meantime, the lower end of vertical pole portion 81 of the movable frame depresses the free end 62a of the lever 62, causing the gas valve 63 to open, and deliver gas to the tip of ignition tube 1 through gas pipe 64, which generates flame when meeting electric sparks.
  • the difference if compared with the first preferred embodiment of the present invention is that a push button 53 is used to replace the previous push button 51, whose head end is a protruding pillar 53a (refer to Fig. 15), which inside the handle, is just behind the protruding pillar 81b corresponding with vertical pole portion 81 of the movable frame (refer to Figures 15 and 13), and the tail end of the push button is exposed out of the installation hole corresponding with the handle (refer to Fig. 12).
  • push button 51 is pushed along the side wall of the handle toward the direction of the belly of the handle, and the protruding pillar 51a of the head portion of push button 51 will drive the protruding pillar 81b on the movable frame, causing the entire movable frame 8 to move toward the piezoelectric unit, and the thicker portion 82b of head end of the transverse pole portion 82 of the movable frame 8 is inserted between the piezoelectric bonnet 91 of the piezoelectric unit 9 and the middle protruding portion 42 of the ignition trigger, to allow the piezoelectric bonnet 91 to have an advance stroke, then, if the ignition trigger 4 is depressed, the piezoelectric bonnet 91 will reach an ignition stroke causing the piezoelectric unit 9 to ignite, in the meantime, the protruding pillar 83a fitted on the short transverse pole portion 83 is also pressing against the stopper 34 (refer to Fig.
  • the movable frame 8 would not move toward the back of the handle even if push button 51 is released, so that users can easily operate the lighter for lighting purpose; in the meantime, the lower end of vertical pole portion 81 of the movable frame depresses the free end 62a of the lever 62, causing the gas valve 63 to open, and deliver gas to the tip of ignition tube 1 through gas pipe 64, which generates flame when meeting electric sparks.
  • the vertical pole portion 81 of the movable frame can also be made the same height as its protruding pillar 81b forming a comparatively thick wall, so that the protruding pillar 51a of the head portion of push button 51 is behind it, and that when igniting, the protruding pillar 51a of the head portion of push button 51 will drive the entire vertical pole portion81, such variation making assembly easier.
  • the difference if compared with the first preferred embodiment of the present invention is that upper end of vertical pole portion 81 of the movable frame exposed out side of upper end of the ignition trigger 4 is directly used in place of push button 51, and a narrow hole 47 is provided on the upper end surface of the ignition trigger 4, the upper end of vertical pole portion 81 goes through the above narrow hole 47 and is exposed out side of the ignition trigger 4, and under natural status of compression spring 7, upper end of vertical pole portion 81 is located in the narrow hole 47 on the side nearing the back of the handle.
  • the movable frame 8 For igniting, when the upper end of vertical pole portion 81 is pushed toward the belly of the handle, the movable frame 8 also moves along with it toward the side of the piezoelectric unit, the thicker portion of head end of the transverse pole portion 82 of the movable frame 8 is inserted between the piezoelectric bonnet 91 of the piezoelectric unit 9 and the middle protruding portion 42 of the ignition trigger, to allow the piezoelectric bonnet 91 to have an advance stroke, then, if the ignition trigger 4 is depressed, the piezoelectric bonnet 91 will reach an ignition stroke causing the piezoelectric unit 9 to ignite, in the meantime, the protruding pillar 83a fitted on the short transverse pole portion 83 is also pressing against the stopper 34 (refer to Fig.
  • the movable frame 8 would not move toward the back of the handle even if the upper end of vertical pole portion 81 is released, so that users can easily operate the lighter for lighting purpose; in the meantime, the lower end of vertical pole portion 81 of the movable frame 8 depresses the free end 62a of the lever 62, causing the gas valve 63 to open, and deliver gas to the tip of ignition tube 1 through gas pipe 64, which generates flame when meeting electric sparks.

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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)
  • Emergency Lowering Means (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)

Claims (10)

  1. Briquet à l'épreuve des enfants, comprenant une poignée (3) pour tenir le briquet et un tube d'allumage (1) s'étendant vers l'extérieur, dans lequel une chambre de gaz liquéfié (6) et son unité formant soupape (63) ainsi qu'une unité piézoélectrique (9) sont prévues dans la poignée et une gâchette d'allumage est insérée dans la position ventrale de la poignée (3) et est exposée depuis la poignée, et un dispositif de sécurité étant prévu à l'intérieur de la poignée, caractérisé en ce qu'il comprend ce qui suit :
    un cadre mobile (8) situé sous la gâchette d'allumage (4) et au-dessus d'un levier (62) de l'unité formant soupape (63), comprenant une partie formant barre verticale (81) et une partie formant barre transversale (82) qui sont intégrées, l'extrémité supérieure de la partie formant barre verticale (81) étant à proximité de la paroi supérieure de la gâchette d'allumage (4) et l'extrémité inférieure étant à proximité de l'extrémité libre (62a) du levier (62), et la pointe distale de l'extrémité de tête (82a) de la partie formant barre transversale (82) est relativement mince et s'épaissit dans une direction vers l'arrière de ladite pointe distale, et dans sa position naturelle, la partie plus mince de la tête de la partie formant barre transversale est serrée entre le capot piézoélectrique (91) de l'unité piézoélectrique (9) et la partie saillante (42) de la gâchette d'allumage (4), de sorte que la course du cadre mobile susmentionné (8) est légèrement plus petite que la course d'allumage piézoélectrique du capot piézoélectrique (91) par lequel l'unité piézoélectrique pourrait être allumée ;
    une partie d'actionnement mobile qui déplace le cadre mobile ci-dessus (8) vers l'unité piézoélectrique (9), entraînée par la main d'une personne, poussant ainsi ladite partie plus épaisse de ladite extrémité de tête (82a) de ladite partie formant barre transversale (82) entre ledit capot (91) et ladite partie saillante (42), ladite partie d'actionnement étant exposée partiellement à l'extérieur d'un trou d'installation (32) dans ladite poignée,
    un ressort de compression (7) qui est disposé entre l'extrémité supérieure de la partie formant barre verticale (81) et la paroi latérale intérieure de la gâchette d'allumage (4) de façon à maintenir le cadre mobile (8) dans la position arrière dans sa position naturelle.
  2. Briquet à l'épreuve des enfants selon la revendication 1, dans lequel ladite partie d'actionnement mobile est un bouton-poussoir (51) situé sur le dos de la poignée, dont la partie de tête appuie contre l'extrémité arrière de la partie formant barre transversale (82) du cadre mobile (8), son extrémité arrière étant exposée à l'extérieur dudit trou d'installation (32).
  3. Briquet à l'épreuve des enfants selon la revendication 1, dans lequel ladite partie d'actionnement mobile est un bouton-poussoir (51) qui est situé sur le dos de la poignée (3) et est mobile dans une direction vers le haut et vers le bas en correspondance à la poignée, dont l'extrémité de tête (52a) comporte un renfoncement central qui est destiné à appuyer contre l'extrémité arrière de la partie formant barre transversale (82) du cadre mobile (8), et l'extrémité arrière du bouton-poussoir étant exposée à l'extérieur du trou d'installation (32) correspondant à la poignée, et il y a une variation progressive entre ladite partie de renfoncement central et la partie saillante voisine, le bouton-poussoir (51) entraîne la partie formant barre transversale du cadre mobile vers l'avant pendant qu'il est déplacé vers le haut et vers le bas.
  4. Briquet à l'épreuve des enfants selon la revendication 1, dans lequel ladite partie d'actionnement mobile est un bouton-poussoir (53) qui est situé sur le côté de la poignée (3) et est mobile dans la direction vers la gauche et vers la droite en correspondance à la poignée, dont l'extrémité de tête est un montant saillant (53a) à l'intérieur de la poignée et est située derrière la partie formant barre verticale (81) du cadre mobile (8), qui entraîne la partie formant barre verticale vers l'avant, et l'extrémité arrière du bouton-poussoir étant exposée à l'extérieur du trou d'installation correspondant à la poignée.
  5. Briquet à l'épreuve des enfants selon la revendication 1, dans lequel ladite partie d'actionnement mobile est l'extrémité supérieure de la partie formant barre verticale (81) du cadre mobile (8) qui s'étend à l'extérieur de l'extrémité supérieure de ladite gâchette d'allumage (4).
  6. Briquet à l'épreuve des enfants selon l'une quelconque des revendications 1 à 5, dans lequel ladite poignée est équipée d'une butée saillante (33) sur sa paroi intérieure dans une position correspondant au dessous (44) de la gâchette d'allumage, et la distance entre eux est légèrement inférieure à la course d'allumage piézoélectrique du capot piézoélectrique (91) de l'unité piézoélectrique (9) par lequel l'unité piézoélectrique pourrait être allumée.
  7. Briquet à l'épreuve des enfants selon l'une quelconque des revendications 1 à 5, dans lequel deux petites saillies (41, 45) sont prévues sur la paroi intérieure de ladite gâchette d'allumage (4) dans une position correspondant au dos de la partie formant barre transversale dudit cadre mobile (8) pour former un canal de guidage.
  8. Briquet à l'épreuve des enfants selon l'une quelconque des revendications 1 à 5, dans lequel le levier (62) de ladite unité formant soupape de gaz (63) comporte un renfoncement dirigé vers le bas dans une position correspondant à l'extrémité inférieure de la partie formant barre verticale (81) dudit cadre mobile (8).
  9. Briquet à l'épreuve des enfants selon l'une quelconque des revendications 1 à 5, dans lequel une courte partie formant barre transversale (83) est prévue sur le côté de la barre verticale (81), ledit côté étant éloigné de l'unité piézoélectrique (9) pour s'étendre parallèlement à la barre transversale (82), un montant saillant (83a) est prévu sous l'extrémité arrière de la courte barre transversale, et une butée (34) est prévue sur la paroi intérieure de la poignée dans une position correspondante, de sorte qu'à l'état d'allumage, ce montant (83a) vient en contact avec la butée (34), verrouillant le cadre mobile (8) en position fixe sans recul.
  10. Briquet à l'épreuve des enfants selon l'une quelconque des revendications 1 à 5, dans lequel un montant saillant (81b) est prévu sur la partie formant barre verticale (81) dudit cadre mobile, du côté opposé au ressort de compression (7), ledit ressort est fixé sur ledit montant saillant (81b).
EP02013568A 2001-06-23 2002-06-19 Briquet à l'épreuve des enfants Expired - Lifetime EP1271055B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN01246127U CN2483618Y (zh) 2001-06-23 2001-06-23 一种儿童安全点火枪
CN01246127 2001-06-23
CNB021116083A CN1173126C (zh) 2002-04-29 2002-04-29 一种儿童安全点火枪
CN11100608 2002-04-29

Publications (3)

Publication Number Publication Date
EP1271055A2 EP1271055A2 (fr) 2003-01-02
EP1271055A3 EP1271055A3 (fr) 2003-10-29
EP1271055B1 true EP1271055B1 (fr) 2006-08-16

Family

ID=36648761

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02013568A Expired - Lifetime EP1271055B1 (fr) 2001-06-23 2002-06-19 Briquet à l'épreuve des enfants

Country Status (3)

Country Link
EP (1) EP1271055B1 (fr)
AT (1) ATE336697T1 (fr)
DE (1) DE60213922D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2672480Y (zh) * 2003-12-30 2005-01-19 楼国良 安全省力点火枪
CN102901120B (zh) * 2012-10-19 2014-08-06 宁波新海电气股份有限公司 一种带上下移动式推钮的保险点火枪

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2363196Y (zh) 1998-12-11 2000-02-09 慈溪市无线电九厂 一种带拨钮式保险装置的点火枪
US6244858B1 (en) * 2000-05-26 2001-06-12 Boqi Wang Multi-purpose lighter with child resistant device
US6217313B1 (en) * 2000-07-24 2001-04-17 Ying Wen Luo Childproof barbecue lighter

Also Published As

Publication number Publication date
EP1271055A3 (fr) 2003-10-29
EP1271055A2 (fr) 2003-01-02
ATE336697T1 (de) 2006-09-15
DE60213922D1 (de) 2006-09-28

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