EP0372989A2 - Briquets - Google Patents

Briquets Download PDF

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Publication number
EP0372989A2
EP0372989A2 EP89312817A EP89312817A EP0372989A2 EP 0372989 A2 EP0372989 A2 EP 0372989A2 EP 89312817 A EP89312817 A EP 89312817A EP 89312817 A EP89312817 A EP 89312817A EP 0372989 A2 EP0372989 A2 EP 0372989A2
Authority
EP
European Patent Office
Prior art keywords
flint
trigger
spring
ignition system
ignition
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.)
Withdrawn
Application number
EP89312817A
Other languages
German (de)
English (en)
Other versions
EP0372989A3 (fr
Inventor
Fukuo Iwahori
Hiroaki Aoshima
Tomomi Kiyotaki
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.)
Iwax Inc
Original Assignee
Iwax Inc
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
Application filed by Iwax Inc filed Critical Iwax Inc
Publication of EP0372989A2 publication Critical patent/EP0372989A2/fr
Publication of EP0372989A3 publication Critical patent/EP0372989A3/fr
Withdrawn legal-status Critical Current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
    • F23Q2/34—Component parts or accessories
    • F23Q2/46—Friction wheels; Arrangement of friction wheels
    • 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
    • F23Q2/161—Lighters with gaseous fuel, e.g. the gas being stored in liquid phase with friction wheel

Definitions

  • the present invention relates to an improved ignition system incorporating a flint pressure spring and a flint striking gear, the ignition system being particularly, but not necessarily, for use with a lighter.
  • a known ignition system to ignite a flint consists of a flint pressure spring, a flint striking gear and a trigger mechanism.
  • the trigger mechanism uses the force of the spring being compressed and instantly released. The friction between the flint striking gear and the flint, sustained in contact therewith by the pressure spring, creates a spark to bring about ignition of a fuel.
  • the trigger mechanism has two casings defining outer and inner compartments; a trigger spring from the flint striking gear; a trigger reset spring which brings the mechanism back to the first stage, a cam pin which holds one end of the trigger spring and at the same time holds and releases reset force. (It rests on the inner and outer compartments.) Lastly, a jointing section which passes repulsive force from the cam pin to the flint striking gear.
  • the particular characteristics of the ignition system concerns the way in which the cam pin, resting on both inner and outer casings, transfers the repulsive force through to a power transference section.
  • the flint striking gear is plate or bar shaped, and it creates a spark from the flint and resets instantly by thrusting forward and recoiling.
  • the flint striking gear is tubular. Part of it is connected to the wheel which the trigger mechanism rotates and causes ignition.
  • the replusive force caused by the trigger spring is opposite to the position of the flint striking gear. It moves through the power transference section to the flint striking gear.
  • the replusive force caused by the trigger spring is in the same direction to the position of the flint striking gear. It moves through the power transference section to the flint striking gear.
  • the types of ignition systems used for example in a gas lighter and a gas cooker, have been mainly three in number, namely crystal, electric or flint.
  • a petrol lighter uses petroleum spirit and a flint ignition.
  • the ignition system of crystal and battery is a simple mechanism, people prefer it's design and function. However, it has a disadvantage, namely in the timing of gas emission and locating the pulse in exactly the right spot at the right time. Therefore, there are a lot of rejects in a production process, i.e. high wastage.
  • Flint ignition systems also have disadvantages. The user has to rotate a wheel with his/her finger causing occasional pain and mess on the finger from flint dust.
  • the wheel is external and children may use them, causing burns or fire hazzards.
  • buttons Both are used with trigger buttons.
  • the button speed co-ordinates with the wheel, and if the wheel speed is slow, it does not ignite. So the user must get the correct pressure.
  • Ignition energy with the flint system is greater than it would be with other systems. However, even with the improvements in the flint system, it is hard to get ignition co-ordinated.
  • the wheel speed will be different. Sometimes, the rotation angle of the striking wheel is too small. Also, the trigger wheel does not always connect properly with the power transference section. Therefore, the flame may not be constant.
  • the petrol lighter uses a non-conducting cloth wick and it requires a large ignition energy input. It cannot, therefore, use an easily designed crystal or electrical system.
  • An object of the present invention is to obviate or mitigate the above-mentioned disadvantages.
  • the present invention is an improved ignition system comprising a flint, a flint pressure spring, a flint striking gear and a trigger mechanism including a trigger spring characterised in that
  • the flint pressure spring urges the the flint into contact with the flint striking gear
  • the trigger spring causes the trigger gear to increase the repulsive force by recoil
  • the force is released instantly in a fixed trigger position travelling through the power transference section to acheive ignition.
  • each component returns to its original position due the influence of the reset spring.
  • the ignition system shown in Figs. 1 and 2 comprises an outer casing (1) and an inner casing (2), both of which are made of plastics material. Both casings (1), (2) are tubular with one end closed, the inner casing (2) being inverted and slidable into and out of the outer casing(1).
  • the ignition system contains a trigger spring (3), a reset spring (4) and a cam pin (5) which has a radial projection near to its upper end.
  • a power transference element (6) is external to the outer casing (1).
  • the trigger spring (3) is made of coil construction with one end abutting against and internally of the closed end of the inner casing (2) and the other end abutting against the head of cam pin (5). By compression of the trigger spring (3), a repulsive force is increased by recoil.
  • Reset spring (4) is also made of coil construction. One end abuts against the closed end of the outer casing (1) and the other end abuts against the end of the wall of the inner casing (2). By compression of the spring (4), repulsive force is increased by recoil.
  • cam pin (5) An upper part of the cam pin (5) is engaged in the open end of the inner casing (2) and is held in place by its radial projection engaging a retaining ledge in the outer casing (1).
  • the bottom part of the cam pin (5) is engaged through the closed end of the outer casing (1) and holds the power transference element (6) as shown.
  • This power transference element (6) is made from metal plate by cold pressing and the bottom of this element (6) is supported by the above-mentioned cam pin (5) as shown.
  • the upper end of the element (6) is shaped like a hook (as shown) so that it can hook into a tooth of a trigger wheel (10).
  • the lighter also has a tank (11) for which containing liquidified gas fuel with a valve and nozzle mechanism (12) in communication therewith and through which gas fuel is released for ignition.
  • a flint (7) is located in a passage with a flint pressure spring (8) to urge it against the periphery of a flint striking gear wheel (9a).
  • the trigger wheel (10) is rotationally fast with the flint striking gear wheel (9a).
  • a push button (15) is provided located over the closed end of the inner casing (2).
  • cam pin (5) In use, when a user pushes button (15) downwardly, cam pin (5), with its radial projection engaging the retaining ledge, compresses trigger spring (3) and increases its repulsive force.
  • the cam pin (5) which retains the trigger spring (3) in a biased position moves with the power transference element (6) instantly rotating trigger wheel (10) and flint striking wheel (9a).
  • valve lever (13) moves the edge of a valve lever (13) and this opens valve and nozzle mechanism (12) and releases gas (made of liquified petroleum) through the nozzle causing a flame at the flame opening (14) ignited by the above-mentioned spark.
  • the reset action operates as follows: When pressure to push button (15) is released, the reset spring (4), which has been compressed, lifts inner casing (2) and returns it to its original position. At the same time, valve mechanism (12) is closed to extinguish flame of the ignited fuel.
  • the trigger mechanism is similar to the trigger mechanism of the first embodiment and like numerals are used to denote like parts.
  • the trigger mechanism comprises a trigger spring (3), a reset spring (4) and a cam pin (5) in both outer casing (1) and inner casing (2).
  • the trigger mechanism in Fig. 3 also consists of a power transference element (6) located inside the outer casing (1) and penetrates into the inner casing (2).
  • the radial projection of the cam pin (5), resting on the retainer ledge projects from the outer casing (2) through an opening (6a).
  • trigger mechanism of the third embodiment as shown in Fig. 4 in which like numerals are used to denote like parts part of the power transference element (6) is attached around the outer casing (1) and the radial projection on cam pin (5) engages in retainer ledge, which moves by touching opening (6a) in the power transference element (6).
  • Figs. 5 and 6 illustrate a fourth embodiment in which like parts are denoted by like numerals.
  • the force of trigger spring (3) travels in the same direction as the flint striking wheel (9a).
  • the trigger wheel (10) is thrust forward and rotates at location of the power transference element.
  • the trigger mechanism in Fig. 5 comprises a power transference element (6) which is attached around outer casing (1).
  • the cam pin (5) is retained and functioned at its opening.
  • the inner structure is similar to the embodiments as before.
  • the power transference element (6) is placed inside the outer casing (1) just like the embodiment in Fig. 3. The difference is that the power transference element is horizontally oriented to extend out in a different direction moving trigger wheel (10).
  • Fig. 7 again is similar to the other embodiments but with the flint striking gear (9b) being of plate shape .
  • the structure and movement of this trigger mechanism is like that in Fig. 6.
  • Either the power transference element and the flint striking are one part, or are seperate but attached and only the plate moves backward and foward.
  • the flint connects with striking plate (9b) at right angles and the movement of the plate (9b) causes sparks with the flint.
  • both trigger and reset springs are made in coil formation.
  • a plate or torsion spring can be used. Materials and method are not limited.
  • the ignition system as above-described uses a flint, but by using the force of springs it manages to acheive a constant reliable pressure for ignition. Because the problem of timing, pressure and accurate spark delivering are overcome, productivity is greater (there are fewer rejects) and selling price becomes lower.
  • a gas lighter with liquified petrolium gas has been used as an example but this system can be used with a oil lighter with petroleum spirit or a gas cooker/burner, i.e. this system is not limited to lighters.
  • This ignition system is based on a flint system, however method of use is like that for crystal or battery system, due to the fact that this system works by recoil force. It, therefore, achieves constant reliable ignition.
  • the ignition energy of this flint system is greater than that of either crystal or battery, and is reliable in terms of timing and locations of ignition spark. Therefore reject numbers in production are lower which enables mass production cheaply compared with other two systems.
  • ignition energy is so great that it can be used for oil lighter and button pressure is like that of crystal or battery.
  • the outer casing design is flexible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lighters Containing Fuel (AREA)
EP19890312817 1988-12-09 1989-12-08 Briquets Withdrawn EP0372989A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP312383/88 1988-12-09
JP31238388 1988-12-09

Publications (2)

Publication Number Publication Date
EP0372989A2 true EP0372989A2 (fr) 1990-06-13
EP0372989A3 EP0372989A3 (fr) 1991-04-24

Family

ID=18028594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890312817 Withdrawn EP0372989A3 (fr) 1988-12-09 1989-12-08 Briquets

Country Status (1)

Country Link
EP (1) EP0372989A3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2241314B (en) * 1990-04-11 1993-12-22 First Glorious Enterprise Co L Lighter
US5358401A (en) * 1992-04-09 1994-10-25 Masayuki Iwahori Ignition mechanism for a lighter
EP0631092A2 (fr) * 1993-06-25 1994-12-28 Masayuki Iwahori Briquet à gaz
US6443727B1 (en) 2000-11-17 2002-09-03 Xinhua Huang Lighter with a lock-off mechanism
EP3086040A1 (fr) * 2013-12-17 2016-10-26 Long Chen Mécanisme d'allumage à silex de type bouton capable de se réinitialiser automatiquement
CN106558972A (zh) * 2016-11-24 2017-04-05 上海理工大学 强磁场环境下的动力装置
CN113595006A (zh) * 2021-06-25 2021-11-02 安徽工程大学 一种架空输电线路除冰冻装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB684904A (en) * 1951-05-15 1952-12-24 Norman Walter Knight Improvements in cigarette and like lighters
FR1282350A (fr) * 1961-02-07 1962-01-19 Mécanisme de couvercle à ressort pour briquet pyrophorique
FR2169723A1 (fr) * 1972-01-06 1973-09-14 Genoud & Cie Ets
FR2327491A1 (fr) * 1975-10-06 1977-05-06 Wilkinson Sword Ltd Briquet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB684904A (en) * 1951-05-15 1952-12-24 Norman Walter Knight Improvements in cigarette and like lighters
FR1282350A (fr) * 1961-02-07 1962-01-19 Mécanisme de couvercle à ressort pour briquet pyrophorique
FR2169723A1 (fr) * 1972-01-06 1973-09-14 Genoud & Cie Ets
FR2327491A1 (fr) * 1975-10-06 1977-05-06 Wilkinson Sword Ltd Briquet

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2241314B (en) * 1990-04-11 1993-12-22 First Glorious Enterprise Co L Lighter
US5358401A (en) * 1992-04-09 1994-10-25 Masayuki Iwahori Ignition mechanism for a lighter
EP0631092A2 (fr) * 1993-06-25 1994-12-28 Masayuki Iwahori Briquet à gaz
EP0631092A3 (fr) * 1993-06-25 1996-03-20 Masayuki Iwahori Briquet à gaz.
US6443727B1 (en) 2000-11-17 2002-09-03 Xinhua Huang Lighter with a lock-off mechanism
EP3086040A1 (fr) * 2013-12-17 2016-10-26 Long Chen Mécanisme d'allumage à silex de type bouton capable de se réinitialiser automatiquement
EP3086040A4 (fr) * 2013-12-17 2017-04-26 Long Chen Mécanisme d'allumage à silex de type bouton capable de se réinitialiser automatiquement
RU2640143C1 (ru) * 2013-12-17 2017-12-26 Лун Чэнь Механизм кремневого зажигания кнопочного типа, выполненный с возможностью автоматического возврата
CN106558972A (zh) * 2016-11-24 2017-04-05 上海理工大学 强磁场环境下的动力装置
CN113595006A (zh) * 2021-06-25 2021-11-02 安徽工程大学 一种架空输电线路除冰冻装置

Also Published As

Publication number Publication date
EP0372989A3 (fr) 1991-04-24

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