EP0486796A1 - Gashahn mit modularer Sicherheitseinrichtung - Google Patents

Gashahn mit modularer Sicherheitseinrichtung Download PDF

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Publication number
EP0486796A1
EP0486796A1 EP91116905A EP91116905A EP0486796A1 EP 0486796 A1 EP0486796 A1 EP 0486796A1 EP 91116905 A EP91116905 A EP 91116905A EP 91116905 A EP91116905 A EP 91116905A EP 0486796 A1 EP0486796 A1 EP 0486796A1
Authority
EP
European Patent Office
Prior art keywords
gas
accordance
gas cock
arm
safety valve
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Withdrawn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
EP91116905A
Other languages
English (en)
French (fr)
Inventor
Mario Zucco
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.)
IMIT SpA
Original Assignee
IMIT SpA
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 IMIT SpA filed Critical IMIT SpA
Publication of EP0486796A1 publication Critical patent/EP0486796A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/002—Gaseous fuel
    • F23K5/007—Details

Definitions

  • the present invention relates to a gas cock with magnetic safety device.
  • the present invention relates to a gas cock with magnetic safety device particularly suited for gas stoves with cooking top of limited height.
  • cocks indeed, in addition to the devices necessary for opening and closing the gas supply duct, include adequate safety systems which automatically stop gas delivery in case of accidental extinguishing of the flame.
  • known cocks are provided with a magnetic valve housed in the body thereof. This requirement necessarily leads to an increase in the size of the cock body, the valve being conventionally aligned with the operating pushbutton.
  • the object of the present invention is to provide a particularly compact gas cock.
  • the object of the present invention is to provide a gas cock including an opening and closing device for the gas supply duct and a particularly compact safety valve which can be used on gas stoves or burners with cooking tops of extremely limited height.
  • Another object of the present invention is to provide a gas cock easy and economical to make and which would not require the use of skilled manpower nor complex technologies.
  • the gas cock of the present invention comprises a hollow tubular body having a square form consisting of two orthogonal arms communicating together, in one of said arms is inserted the opening and closing control device and in the other the magnetic safety valve and an operating device.
  • the opening and closing control device comprises a sliding rod which, when operated manually, makes contact with the free end of the operating device which acts on the magnet to activate it and opens the valve for passage of the gas. When the magnet is deactivated the valve closes and blocks opening of the gas to prevent flow of gas.
  • the gas cock of the present invention comprises a hollow tubular body (10) having a square form and comprising a longitudinal arm (12) and a transverse arm (13) communicating together and arranged at an angle of 90° with each other.
  • Said hollow tubular body (10) may be preferably made in a single piece and preferably by casting in brass or some other suitable material.
  • the longitudinal arm (12) is provided at its free end with a ring nut union (14) in the central part of a union (42) for connection thereof to a gas supply and, near said central part, an annular recess (15) which defines a central hole (15') for passage of the gas.
  • Said longitudinal arm (12) is closed at the end opposite the end with the ring nut (14) by a plug (16) whose structure is defined better below.
  • the opening and closing control device In the cavity of the transverse arm (13) is inserted the opening and closing control device.
  • the free end of said transverse arm (13) is closed by a riser (18) in which is inserted and projects the control rod (20) of said control device.
  • the end of the rod (20) corresponding to the internal part of the riser (18) has a blind hole (21).
  • the control device comprises a hollow body (30) with longitudinal truncated cone cross section inserted in the cavity of the transverse arm (13), which also has a longitudinal truncated cone cross section but in a direction opposite that of the body (30) so as to mate exactly, and fixed to said arm by the riser (18).
  • a rod or shaft (26) provided at one end with a pin having smaller diameter and delimited by a ring nut (29), and at the opposite end a tapered cam (28) whose base has a diameter greater than that of the cavity of the hollow body (30).
  • said hollow body (30) has an annular cavity (31) which defines a central hole (31') which acts as a guide for the sliding of the rod (26).
  • Said rod (26) is inserted in the cavity of the body (30) and through the central hole (31') in such a manner that its pin (27) penetrates in the blind hole (21) of the control rod (20) and its tapered cam (28) is in contact with the free edge of the hollow body (30).
  • a return spring (32) inserted in the rod (26) is arranged between the ring nut (29) and the cavity (31) and ensures the elastic position of the rod (26) with the tapered cam (28) in contact with the free edge of the hollow body (30).
  • a seal ring (33) (O-ring) arranged between the spring (32) and the cavity (31) ensures sealing between the rod (26) and the hole (31').
  • the recess (15) divides the cavity of the longitudinal arm (12) in two chambers of which one (38) communicates with the cavity of the transverse arm (13) and the other (37) is provided with the union (42) for connection to the gas supply.
  • the magnetic valve (22) In the chamber (37) is arranged the magnetic valve (22) and in the chamber (38) the operating device (24).
  • the magnetic valve (22) comprises a magnet and an axially sliding stem (48) provided with a sealing disc (44) at the free end. Said disc (44) closes the hole (15') through which passes the gas.
  • the stem (48) is kept in advanced position and hence completely closing the hole (15') by a compression spring (46) arranged between the magnetic valve (22) and the sealing disc (44).
  • the operating device (24) consists of a pin provided on the outer surface with guide finning (36) arranged preferably at an angle of 120° or 90° from each other. Said finning (36) grazes the inner wall of the chamber (38) and thus keep said operating device (24) aligned during its axial sliding.
  • the pin of the operating device (24) has the end (40) corresponding to the tapered cam (28) with truncated cone form and the opposite end (25) of smaller diameter than that of said pin so as to pass through the hole (15') through which the gas passes.
  • the truncated cone end (40) of the operating device (24) is aligned with the tapered cam (28) of the rod (26) so that said cam (28) can make contact with said end (40) by axial sliding of said rod (26).
  • a spring (47) ensures the position of the operating device (24) with the end (25) outside the hole (15').
  • the closing plug (16) of the longitudinal arm (12) is preferably shaped in such a manner as to create with its front (34) a shoulder for the tapered cam (28) at the moment said cam comes into contact with the tapered end (40) of the operating device (24).
  • the rod (26) with the cam (28) as well as the pin (24) with finning (36) can be made of thermo-plastic materials, steel or some other suitable material although a preferred embodiment calls for brass.
  • the finning (36) does not bring about an undesirable decrease of the passage of gas in the cylindrical chamber (38).
  • Operation of the gas cock in accordance with the present invention is as follows: in closed position the rod (26) is held in position away from the truncated cone end of the operating device (24) by the return spring (32). In this position the base of the tapered cam (28) is pressed against the edge of the hollow body (30) and closes the passage.
  • the magnet (22) is not activated and the disc (44) closes the hole (15') through which the gas passes due to the effect of the spring (46).
  • the gas let into the cylindrical chamber (37) in which is arranged the magnet (22) does not pass into the chamber (38), the hole (15') being closed and sealed by the disc (44).
  • the rod (26) is made to slide axially against the elastic resistance of the spring (32) until the tapered cam (28) makes contact with the end (40) of the operating device (24) and pushes its end (25) axially against the disc (44) through the hole (15').
  • thermocouple is of known type and is arranged near the burner (not shown) to receive immediately the heat released by the flame. Should there be an accidental lack of gas, the flame is extinguished and the thermocouple is no longer able to produce the current for the magnet (22). The magnet is thus deactivated and the disc (44) is pushed by the spring (46) and closes the hole (15') to prevent the gas from entering the chamber (38)

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP91116905A 1990-11-19 1991-10-04 Gashahn mit modularer Sicherheitseinrichtung Withdrawn EP0486796A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2213190U IT220286Z2 (it) 1990-11-19 1990-11-19 Rubinetto-gas con sicurezza modulare specie per piani di cottura di altezza limitata.
IT2213190 1990-11-19

Publications (1)

Publication Number Publication Date
EP0486796A1 true EP0486796A1 (de) 1992-05-27

Family

ID=11191958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91116905A Withdrawn EP0486796A1 (de) 1990-11-19 1991-10-04 Gashahn mit modularer Sicherheitseinrichtung

Country Status (2)

Country Link
EP (1) EP0486796A1 (de)
IT (1) IT220286Z2 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2284651A (en) * 1993-11-24 1995-06-14 Sourdillon Sa A gas valve
DE19616797A1 (de) * 1996-01-25 1997-07-31 Imit Spa Gashahn mit Sicherheitsmagnetventil für Gasherde und Gaskocher
US5965970A (en) * 1995-05-08 1999-10-12 Ngk Insulators, Ltd. Diaphragm structure
EP1013996A1 (de) * 1998-12-21 2000-06-28 FAGOR, S.Coop Gashahn für einen Kochherd mit einem Sicherheitventilantrieb
EP1058059A2 (de) * 1999-06-02 2000-12-06 Siral S.p.A. Gasventil
EP1672279A1 (de) 2004-12-16 2006-06-21 FAGOR, S.Coop Gashahn für einen Gasbrenner
EP1777456A2 (de) 2005-10-21 2007-04-25 Turas Gas Armatures R&D Y-Typgashahn für Gasofen oder Kochherde mit Sicherheitssystem zur Brennstoffunterbrechung
US20130240767A1 (en) * 2010-12-14 2013-09-19 Bsh Bosch Und Siemens Hausgerate Gmbh Gas valve unit comprising an actuation mechanism for a solenoid valve
US20130248745A1 (en) * 2010-12-14 2013-09-26 BSH Bosch und Siemens Hausgeräte GmbH Gas valve unit comprising a lift deflection system
EP2827060A1 (de) * 2013-07-19 2015-01-21 Turas Gaz Armatürleri Sanayi. Ve Ticaret A.S. Nockengashahn mit Kücken und integriertem Nocken für Haushalts-Kochgeräte
EP2597376A3 (de) * 2011-11-26 2017-11-01 BSH Hausgeräte GmbH Kochvorrichtung mit Gashahnschaft
EP2436981A3 (de) * 2010-09-29 2017-11-29 BSH Hausgeräte GmbH Gargerät mit beweglichem Gashahnschaft

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2565667A1 (fr) * 1984-06-06 1985-12-13 Madec Mater Robinet a gaz perfectionne pour l'alimentation d'un bruleur.
GB2196732A (en) * 1986-10-29 1988-05-05 Ti New World Ltd Mounting of gas valve
GB2197943A (en) * 1986-09-26 1988-06-02 Cramer Gmbh & Co Kg Gas cooker flame-out device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2565667A1 (fr) * 1984-06-06 1985-12-13 Madec Mater Robinet a gaz perfectionne pour l'alimentation d'un bruleur.
GB2197943A (en) * 1986-09-26 1988-06-02 Cramer Gmbh & Co Kg Gas cooker flame-out device
GB2196732A (en) * 1986-10-29 1988-05-05 Ti New World Ltd Mounting of gas valve

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2284651A (en) * 1993-11-24 1995-06-14 Sourdillon Sa A gas valve
GB2284651B (en) * 1993-11-24 1997-07-09 Sourdillon Sa Improvements in or relating to a gas valve
ES2118024A1 (es) * 1993-11-24 1998-09-01 Sourdillon Societe Anonyme Grifo de gas con valvula de seguridad.
US5965970A (en) * 1995-05-08 1999-10-12 Ngk Insulators, Ltd. Diaphragm structure
DE19616797A1 (de) * 1996-01-25 1997-07-31 Imit Spa Gashahn mit Sicherheitsmagnetventil für Gasherde und Gaskocher
EP1013996A1 (de) * 1998-12-21 2000-06-28 FAGOR, S.Coop Gashahn für einen Kochherd mit einem Sicherheitventilantrieb
EP1058059A2 (de) * 1999-06-02 2000-12-06 Siral S.p.A. Gasventil
EP1058059A3 (de) * 1999-06-02 2002-02-13 Siral S.p.A. Gasventil
EP1672279A1 (de) 2004-12-16 2006-06-21 FAGOR, S.Coop Gashahn für einen Gasbrenner
EP1777456A3 (de) * 2005-10-21 2008-06-11 Turas Gas Armatures R&D Y-Typgashahn für Gasofen oder Kochherde mit Sicherheitssystem zur Brennstoffunterbrechung
EP1777456A2 (de) 2005-10-21 2007-04-25 Turas Gas Armatures R&D Y-Typgashahn für Gasofen oder Kochherde mit Sicherheitssystem zur Brennstoffunterbrechung
EP2436981A3 (de) * 2010-09-29 2017-11-29 BSH Hausgeräte GmbH Gargerät mit beweglichem Gashahnschaft
US20130240767A1 (en) * 2010-12-14 2013-09-19 Bsh Bosch Und Siemens Hausgerate Gmbh Gas valve unit comprising an actuation mechanism for a solenoid valve
US20130248745A1 (en) * 2010-12-14 2013-09-26 BSH Bosch und Siemens Hausgeräte GmbH Gas valve unit comprising a lift deflection system
KR20140033322A (ko) * 2010-12-14 2014-03-18 베에스하 보쉬 운트 지멘스 하우스게랫테 게엠베하 솔레노이드 밸브용 작동 메커니즘을 갖는 가스 밸브 유닛
US9206981B2 (en) * 2010-12-14 2015-12-08 Bsh Hausgeraete Gmbh Gas valve unit comprising an actuation mechanism for a solenoid valve
US9206982B2 (en) * 2010-12-14 2015-12-08 Bsh Hausgeraete Gmbh Gas valve unit comprising a lift deflection system
KR101869119B1 (ko) * 2010-12-14 2018-06-19 베에스하 하우스게랫테 게엠베하 솔레노이드 밸브용 작동 메커니즘을 갖는 가스 밸브 유닛
EP2597376A3 (de) * 2011-11-26 2017-11-01 BSH Hausgeräte GmbH Kochvorrichtung mit Gashahnschaft
EP2827060A1 (de) * 2013-07-19 2015-01-21 Turas Gaz Armatürleri Sanayi. Ve Ticaret A.S. Nockengashahn mit Kücken und integriertem Nocken für Haushalts-Kochgeräte

Also Published As

Publication number Publication date
IT220286Z2 (it) 1993-09-15
IT9022131U1 (it) 1992-05-20
IT9022131V0 (it) 1990-11-19

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