EP0098231B1 - Robinet à gaz couplé à un système piézo-électrique et appareils à gaz incorporant un tel robinet - Google Patents

Robinet à gaz couplé à un système piézo-électrique et appareils à gaz incorporant un tel robinet Download PDF

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Publication number
EP0098231B1
EP0098231B1 EP83420101A EP83420101A EP0098231B1 EP 0098231 B1 EP0098231 B1 EP 0098231B1 EP 83420101 A EP83420101 A EP 83420101A EP 83420101 A EP83420101 A EP 83420101A EP 0098231 B1 EP0098231 B1 EP 0098231B1
Authority
EP
European Patent Office
Prior art keywords
cock
piezoelectric system
piezoelectric
axis
striker
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
Application number
EP83420101A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0098231A1 (fr
Inventor
Pierre Sivignon
Marcel Vache
Michel Perrot
Gilles Damon
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.)
Application des Gaz SA
Original Assignee
Application des Gaz SA
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 Application des Gaz SA filed Critical Application des Gaz SA
Publication of EP0098231A1 publication Critical patent/EP0098231A1/fr
Application granted granted Critical
Publication of EP0098231B1 publication Critical patent/EP0098231B1/fr
Expired 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
    • F23Q3/00—Igniters using electrically-produced sparks
    • F23Q3/002—Igniters using electrically-produced sparks using piezoelectric elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs

Definitions

  • the present invention relates to gas taps coupled to piezoelectric ignition systems of a gas burner, for which the rotation of the operating button in the direction of opening of the valve actuates and triggers the piezoelectric system.
  • valve comprising a body, a rotary control axis, comprising at its free end an operating button
  • this system itself comprises a rectangular housing, a piezoelectric element contained in the latter, a striker movable in the housing relative to the piezoelectric element, a lug for actuating the movable striker, a spring or elastic means disposed in the housing; this system is actuated from its rest position, by means of the lug, by charging the spring, then by projecting the striker against the piezoelectric element, under the effect of the loaded spring;
  • an intermediate part for actuating the piezoelectric system consisting of a toothed wheel; this intermediate piece is mounted coaxially with respect to the rotary control axis, and more precisely around a hub belonging to the operating button, between the valve body and said button; each tooth on the periphery of the wheel is capable of actuating the striker of the piezoelectric system;
  • the toothed wheel is locked in rotation on the hub of the operating button, both in the closing direction and in the opening direction of the valve;
  • the toothed wheel is free in translation relative to the control axis, and it is pushed against a stop axially fixed relative to the valve body, by a spring disposed between said wheel and the operating button;
  • each tooth of the wheel is pushed back by the lug of the piezoelectric system, and the wheel moves backwards against the spring, with each passage of a tooth against the 'pin, while returning against the stop between two teeth; in this way, the piezoelectric system remains in the rest position, when the tap is closed.
  • the present invention proposes to improve the technical solution proposed by French patent FR-A-2 330 960, in two aspects: on the one hand, a connection is sought between the tap and the piezoelectric system independent of the gas appliance in which the tap is integrated, and in particular its frame,
  • the rotary control axis consists of an axial adjustment screw
  • a means which makes it possible to actuate the piezoelectric system, whatever the axial position of the axis, during operation of the tap or over time, for example due to wear of the adjusting screw.
  • a separate and independent connection of the valve body and the operating button completely free to rotate relative to the rotary control axis; this connection is mounted at least in part between the valve body and the operating button, and is linked to the piezoelectric system.
  • the link supports the entire piezoelectric system and at least one means is provided to stop the rotation of the link, at least in the direction of opening of the valve, under the effect of the intermediate actuating part of the piezoelectric system.
  • the rotary axis is an axial adjustment screw
  • an axial stop is provided on the rotary control axis, and the link is mounted. at least in part between this stop and the start button.
  • the piezoelectric system is permanently subjected in translation to the axial movement of the control axis. If, moreover, the intermediate actuating part is itself fixed in translation relative to the adjusting screw, this completely frees itself from the axial displacements of the rotary control axis, in order to actuate the piezoelectric system with from the tap rotation.
  • the piezoelectric system 8 illustrated in fig. 1 comprises in known manner an elongated housing 1 at the end of which is fixed a piezoelectric element 2, against which a striker 3 is projected displaced by a pushing member 4 against the reaction in the opposite direction of an elastic means 5.
  • a striker 3 is projected displaced by a pushing member 4 against the reaction in the opposite direction of an elastic means 5.
  • the striker brought to the bottom of the travel by the thrust member is released, so that under the reaction of the spring 5 it strikes the piezoelectric element causing it to produce a electric tension.
  • Fig. 2 a more sophisticated system 8 has been illustrated, the piezoelectric element 2 of which is always retained at one of the ends of the casing or housing 1, but the striker 3 is associated with a pushing member 6 which can be moved telescopic relative to the envelope 1. This member is returned to its rest position by a spring 7. We will not return to the operation of such a piezoelectric system which is well known in practice.
  • a piezoelectric system such as that shown in fig.1 is used.
  • the housing of the piezoelectric system produced in one-piece form with the support or link 9, itself comprising an elongated body 9a and two side cheeks 9b determining between them a certain space below which the side wall of the body 9a is cut to form a slot 9c.
  • the piezoelectric element 2 held in place by a threaded metal plug referenced 10 with which cooperates an output conductor 11 kept applied against the plug 10 by means of an insulating capsule 12.
  • a inner groove 12a of the capsule 12 engages with a cord 9d formed for this purpose at the periphery of the body 9a.
  • a second capsule 12 is secured to the other end of said body in order to serve as a stop at one of the ends of the spring 5 for actuating the striker 3, the opposite end of which bears on the latter or more precisely at the bottom of a depression 3a thereof.
  • An intermediate actuating part 13 placed between the cheeks 9b is mounted for rotation about the rotary axis 14 of a gas tap 15 with an axial adjustment screw; this part is fixed in translation relative to the axis 14.
  • the periphery of the intermediate actuating part 13 is provided with teeth 13a intended to come to cooperate with the front face 3b of the striker 3 in order to make it move back to against the reaction of the spring 5.
  • the intermediate actuation part is integral with the rotary axis 14 in the direction of opening of the valve 15.
  • the face of the part 13 which is oriented opposite the tap 15 is provided with four ramps 13b (fig.5) ending in steps 13c.
  • the face in question of the part 13 comes to carry an open washer 16 surrounding the axis 14 and one of the ends 16a of which is suitably arched cooperates with the ramps 13b as will be better explained below.
  • the opposite end of the washer 16 is deformed in order to form a tab 16b perpendicular to its general plane.
  • This tab 16b enters a slot 17a (FIG. 5) of the operating button 17 of the axis 14, so that the rotation of this button in the direction of opening causes that of the actuating part 13, by abutment of the end 16a of the washer 16 against the steps 13c.
  • the washer 16 rubs against the ramps 13b without driving them.
  • the operating button 17 is force fitted or overmolded on the grooved end 14a of the axis 14.
  • the connection 9 being placed transversely relative to and on the axis 14, the rotation of the intermediate piece 13 could l 'Drive if it had a heel 9th which cooperates with the valve 15 to wedge it angularly.
  • the axis 14 includes a flange 14b against which bears the outer face of one of the cheeks 9b of the support 9, the inner face of this cheek constituting a stop for the actuating part 13, against which bears with operating clearance the end of the hub 17b formed on the operating button 17, itself crossing the other cheek 9b of the support 9.
  • the latter is linked longitudinally with respect to the axis 14.
  • valve 15 is of the plug or needle type, that is to say that its rotary axis may or may not be subjected to a longitudinal translation, without influencing its operation.
  • the intermediate actuating part 20 comprises a ramp 20a which develops from a low point to a high point located on either side of a tongue 20d.
  • a control element 21 which is provided with a ramp 21c whose top and bottom points are located on either side of a stop 21d.
  • the tongue 20d is blocked during the rotation of the part 20 on the side of the low point F of the ramp 21c in the position of closing the valve, and on the side of the point O of the same ramp 21c in its open position.
  • the ramps 20a and 21c of the piece 20 and of the element 21 each comprise a neutral zone 20e respectively 21e placed at the low point of each ramp and another neutral zone 20f, 21f disposed at the top of each ramp.
  • the areas in question are actually flat areas, the role of which will be better explained below.
  • the housing 1 of the piezoelectric system is contained, parallel to the axis 14, in a support produced in the form of a carcass 19 resting against a face of the valve 15.
  • This carcass is extended by a lateral tab 19a through which the 'rotary axis 14, the end branch of said tab being folded back to cooperate with a second face of the valve 15 oriented parallel to the first.
  • the side tab 19a is trapped between the flange 14b of the rotary axis 14, the control element 21, and an intermediate actuating part 20 on which acts, as will be described better below, the operating button 17 of the tap 15.
  • the intermediate actuating part no longer acts directly on the thrust member 6 of the piezoelectric system, but it is engaged with the control element 21, intended to act on the thrust member 6 of the piezoelectric system.
  • This control element 21 comprises the ring 21a provided with the ramp 21e and the finger 21 b, the end of which enters the carcass 19, with a view to acting on the thrust member 6.
  • the length of the finger 21 b is calculated so that its curved end remains constantly inside the carcass 19, even when the valve is fully open.
  • the control button 17 is advantageously extended by a tubular sleeve .17d at least partially surrounding said periphery.
  • Fig. 8 is a developed view of the two ramps 20a and 21c. When the tap is closed, these two ramps are in contact with each other, except for the neutral zones 20f and 21f of each of them. It is observed that the end of the finger 21 b is in abutment against that of the pushing element 6 of the piezoelectric system, in such a way that the depression of this member inside the carcass 19 in no way causes case the triggering of the piezoelectric system. As illustrated in fig. 9, a mark 22 placed on the operating button 17 is located opposite a sign 23 indicating the closing of the valve.
  • the end of the tongue 20d pushes the control element 21 towards the tap, so that the finger 21 b of this element actuates the member 6 of the piezoelectric system, so as to cause a spark to burst, for example when the mark 22 is at the level of an index 24 (cf. Figs. 10 and 11).
  • the end of the tongue 20d arrives just at the start of the flat area 21f of the ramp 21c.
  • the displacement of the intermediate piece 20 in the closing direction causes the teeth 17c of the operating button to be released relative to the teeth 20c of the piece 20, the latter and the element 21 moving alternately from axially against the reaction of the return means of the thrust member 6.
  • the support or connection of the piezoelectric system is also independent of the frame of the appliance.
  • the carcass 19 constitutes both the support of the piezoelectric system 8 and the connection between the latter and the rotary control axis 14 (thanks to the stop 14b), to subject in displacement the movement of said system to that of the axis 14 (adjusting screw).
  • the support of the piezoelectric system is dissociated and the connection in translation between the latter and the control axis. More precisely, according to FIG. 16 (top view, with partial section along the section plane XVI / XVI of FIG. 17) and according to FIG. 17 (front view, with partial section along the section plane XVII / XVII of Figure 16), the piezoelectric system 8 is disposed in a housing 50 of plastic material, made integral with the valve body 15, by screwing a part (not shown) on the thread 15v, which blocks the housing 50 against the 15w tap barrel. The piezoelectric system 8 can move in translation in the housing 50.
  • connection between the system 8 and the axis 14 consists of a lug 51 comprising a part 51a in abutment against the part 14b of the axis, another part 51 b at right angles entering the housing 50, along the mechanism 8, and a last 51c at right angles and in the opposite direction from the part 51a, bearing against the rear of the system 8; this support is obtained permanently thanks to the reaction of the pushing member 6 against the finger 21b, provided that the length of the part 51b is correctly dimensioned relative to the stroke of the pushing member 6. In this way , the piezoelectric system 8 continuously follows the axial movement of the axis 14.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Lighters Containing Fuel (AREA)
EP83420101A 1982-06-17 1983-06-14 Robinet à gaz couplé à un système piézo-électrique et appareils à gaz incorporant un tel robinet Expired EP0098231B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8211034A FR2528939A1 (fr) 1982-06-17 1982-06-17 Robinet a gaz couple a un systeme piezo-electrique et appareils a gaz incorporant un tel robinet
FR8211034 1982-06-17

Publications (2)

Publication Number Publication Date
EP0098231A1 EP0098231A1 (fr) 1984-01-11
EP0098231B1 true EP0098231B1 (fr) 1985-10-09

Family

ID=9275333

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83420101A Expired EP0098231B1 (fr) 1982-06-17 1983-06-14 Robinet à gaz couplé à un système piézo-électrique et appareils à gaz incorporant un tel robinet

Country Status (7)

Country Link
EP (1) EP0098231B1 (es)
JP (1) JPS597827A (es)
KR (1) KR840005201A (es)
DE (1) DE3360977D1 (es)
ES (1) ES272956Y (es)
FR (1) FR2528939A1 (es)
PT (1) PT76838B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6163769A (ja) * 1984-09-03 1986-04-01 東レ株式会社 汚れの目立ちにくい布帛およびその製造方法
GB2181826B (en) * 1985-10-09 1989-09-27 Valor Newhome Ltd Improvements relating to spark igniters for gas appliances
JP6789109B2 (ja) 2016-12-28 2020-11-25 富士フイルム株式会社 血液分析方法及び血液検査キット

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1914214A1 (de) * 1969-03-20 1970-10-01 Junkers & Co Piezoelektrische Zuendvorrichtung fuer einen Brenner eines gasbeheizten Geraetes
DE1962005A1 (de) * 1969-12-11 1971-06-16 Junkers & Co Piezoelektrische Zuendvorrichtung
US3768959A (en) * 1972-10-18 1973-10-30 Olin Corp Auto-ignition stove

Also Published As

Publication number Publication date
PT76838A (fr) 1983-07-01
FR2528939B1 (es) 1985-01-25
ES272956Y (es) 1984-10-01
DE3360977D1 (en) 1985-11-14
PT76838B (fr) 1986-02-18
JPS597827A (ja) 1984-01-17
ES272956U (es) 1984-03-01
KR840005201A (ko) 1984-11-05
EP0098231A1 (fr) 1984-01-11
FR2528939A1 (fr) 1983-12-23

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