EP2735795A1 - Gashahn für eine Kocheinrichtung - Google Patents

Gashahn für eine Kocheinrichtung Download PDF

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Publication number
EP2735795A1
EP2735795A1 EP20120382467 EP12382467A EP2735795A1 EP 2735795 A1 EP2735795 A1 EP 2735795A1 EP 20120382467 EP20120382467 EP 20120382467 EP 12382467 A EP12382467 A EP 12382467A EP 2735795 A1 EP2735795 A1 EP 2735795A1
Authority
EP
European Patent Office
Prior art keywords
gas
sliding surface
shaft
housings
cover
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.)
Granted
Application number
EP20120382467
Other languages
English (en)
French (fr)
Other versions
EP2735795B1 (de
Inventor
Jose Jaime Bengoa Madina
Imanol Arriola-Bengoa Unzueta
Unai Gerenabarrena Meabebasterretxea
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.)
Coprecitec SL
Coprececitec SL
Original Assignee
Coprecitec SL
Coprececitec SL
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=47594456&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2735795(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Coprecitec SL, Coprececitec SL filed Critical Coprecitec SL
Priority to EP12382467.4A priority Critical patent/EP2735795B1/de
Priority to SI201230929A priority patent/SI2735795T1/sl
Priority to ES12382467.4T priority patent/ES2629985T3/es
Priority to PL12382467T priority patent/PL2735795T3/pl
Publication of EP2735795A1 publication Critical patent/EP2735795A1/de
Application granted granted Critical
Publication of EP2735795B1 publication Critical patent/EP2735795B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/007—Regulating fuel supply using mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/24—Valve details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/126—Arrangement or mounting of control or safety devices on ranges

Definitions

  • the present invention relates to a gas tap of the type having a conical regulating plug and a rotary operated shaft used in a gas cooking appliance, and particularly to the definition of different positions for regulating gas.
  • Gas taps with rotation means that allow rotating plugs for regulating the gas flow are known. These rotation means have elements limiting said rotation to an angle between an initial locking position or OFF position for cutting off the gas supply, and an open position for supplying a specific gas flow. These taps comprise positioning means which allow audibly indicating when a predetermined position of the rotation means has been reached.
  • GB682095 A describes a gas tap comprising a tap body with a conical inner housing suitable for receiving a rotary conical regulating plug for regulating the gas flow, and a manually operated rotary shaft integrally coupled to the conical regulating plug, and provided with transverse locking means for locking rotation.
  • Said transverse locking means comprise a positioning washer integrally fitted to the rotary shaft, said fitting allowing the axial sliding and not the rotary sliding over said shaft, the washer projecting perpendicularly from said shaft, and having at least one pair of projections on the outer edge, between which gaps are formed in which steel balls are housed.
  • the transverse means also comprise an elastic washer mounted in the rotary shaft which can rotate about the shaft and slide axially along the shaft. The steel balls of the positioning washer are supported on the elastic washer and project from the upper face of the positioning washer.
  • the gas tap comprises a return spring of the rotary shaft, which is mounted on the shaft and retained between a flange of the shaft and the lower part of the elastic washer.
  • the gas tap also comprises a cover covering the housing of the tap body, said cover guiding the rotation of the shaft with the cooperation of the transverse locking means. Said rotation is limited by means existing in the cover and in the positioning washer, at an angle between a closed position without a gas supply, and an open position for supplying a specific gas flow.
  • the cover comprises a planar inner sliding surface comprising at least one positioning means, the transverse locking means sliding along said planar sliding surface by means of the balls of the positioning washer when the shaft is subjected to a rotation action.
  • the gas regulation is linear between different gas flow positions, and when the closed position is reached, the balls of the positioning washer interact with the positioning means of the cover, retaining the balls in said position and producing a sound notifying the user that the closed position has been reached.
  • the object of the invention is to provide a gas tap for a cooking appliance as described in the claims.
  • the gas tap for a cooking appliance of the invention comprises a tap body with a conical inner housing, suitable for receiving a rotary conical regulating plug for regulating the gas flow, a manually operated rotary shaft coupled to the conical regulating plug, and provided with a transverse means, a return spring of the rotary shaft arranged between the conical regulating plug and the rotary shaft, and a cover covering the housing of the tap body and guiding the rotation of the shaft in cooperation with the transverse means, at an angle in any of the two directions, from an initial position corresponding to the position for cutting off the gas flow, and a final position corresponding to a specific gas flow.
  • the inside of the cover comprises a sliding surface over which the transverse means slide when the rotary shaft is subjected to a rotation action.
  • the inner sliding surface of the cover comprises a plurality of housings for the transverse locking means, in the movement thereof over said sliding surface, these housings defining different positions for regulating the gas flow.
  • the main advantage of the invention is that, while in the prior art the rotation of the shaft for operating the tap allows regulating the gas flow linearly and progressively, the gas tap of the invention allows regulating the gas flow discretely, i.e., it defines different specific positions with a specific gas flow in each position. This allows the user to relate the specific positions for regulating the gas with cooking habits.
  • an embodiment of the gas tap for a cooking appliance of the invention comprises a tap body 2 with a conical inner housing 2a, suitable for receiving a rotary conical regulating plug 3 for regulating the gas flow G.
  • the tap 1 also comprises a manually operated rotary shaft 4 coupled to the conical regulating plug 3, said rotary shaft 4 being provided with a transverse means 6 for locking rotation, a return spring 5 of the rotary shaft 4, and a cover 7 covering the housing 2a of the tap body 2, and guiding the rotation of the shaft 4 in cooperation with the transverse means 6.
  • the shaft 4 can rotate at an angle A in any of the two directions, usually greater than 160°, for supplying the gas flow G, which is determined by the position of the transverse means 6, as shown in Figure 2 .
  • the angle A is developed from an initial position 8 corresponding to the OFF position for cutting off the gas flow supply, and a final position 9 corresponding to a minimum gas flow, passing through an intermediate maximum gas supply flow position 12.
  • the cover 7 is in the form of a tubular bushing, comprising a narrow tubular part the inner diameter of which fits with the diameter of the shaft 4, a cylindrical part provided with a closing base resting against the tap body 2, and with a substantially larger diameter than the diameter of the tubular part, and a flap projecting from the closing base having two fixing tabs for fixing the closing base against the tap body 2.
  • the cover 7 comprises a sliding surface 10 on its inner face extending in the angle of rotation A, the transverse means 6 sliding over the sliding surface 10 when the rotary shaft 4 is subjected to a rotation action.
  • the inner sliding surface 10 is a surface that is recessed in an axial direction with respect to the closing edge of the cover 7, being arranged at the bottom 15 of said cover 7.
  • Said sliding surface 10 comprises a plurality of housings 11, specifically five in the embodiment shown in Figure 2 , the transverse means 6 being placed in said housings 11 in the movement thereof over said surface 10 when the rotary shaft 4 is subjected to a rotation action. Different positions for regulating the gas flow G are thereby defined when the transverse means 6 are located in the housings 11.
  • the sliding surface 10 of the cover 7 is developed over an arc length I less than arc length L of the angle A of rotation of the shaft 4.
  • the housings are arranged in an undulated sector 13 of the sliding surface 10, the undulated sector 13 being limited between the maximum flow position 12 and the minimum flow position 9.
  • the maximum flow position 12 is in a position of the angle A which is approximately 90°
  • the minimum flow position 9 is in a position of the angle A of approximately 210°, as shown in Figure 4 .
  • the minimum flow position 9 can be between approximately 160° and 270°.
  • the undulated sector 13 is a series of protuberances 14, i.e., small mounds with an up ramp and down ramp, with an intermediate preferably round summit, the housings 11 being arranged between every two protuberances 14 such that the undulated sector 13 is converted into a series of slopes and valleys.
  • the maximum flow position 12 is therefore arranged at the beginning of the ramp of the first protuberance 14, considering the path from the closed OFF position, and the minimum flow position 9 is in the last housing 11, also considering the path from the closed OFF position, as can be seen in Figures 1 and 2 .
  • Figure 5 shows a plan view of the cover 7 in which section line VI-VI which allows showing the undulated sector 13 is defined.
  • Figure 6 shows a section view of the cover 7 according to line VI-VI, where the protuberances 14 and the housings 11 can be seen.
  • the protuberances 14 have a height h measured from the bottom of the housings 11 to the peak of the protuberances 14. Said height h is comprised between approximately 0.4 millimeters and approximately 0.8 millimeters.
  • the sliding surface 10 extends between a housing groove 17 for housing the transverse means 6, corresponding to the initial position 8 or closed OFF position of the rotation of the shaft 4, and the minimum flow position 9.
  • the groove 17 is substantially located at the same height as the sliding surface 10 and has the same width as the width of the transverse means 6 partially housed in said groove 17.
  • the shaft 4 is pushed by the user towards the inside of the tap 1, overcoming the force F of the return spring 5, and then the gas flow is supplied by means of rotating the shaft 4 from the maximum flow position 12.
  • the groove 17 comprises an end 18 that is closed with a stop wall 19 substantially perpendicular to the wall 16, closing off the trajectory of the angle A of the shaft 4.
  • the trajectory of the angle A is closed off at the other end by means of a stop wall 20 substantially perpendicular to the wall 16.
  • the sliding surface 10 also comprises a linear sector 21 extending from the groove 17 to the maximum flow position 12.
  • the rest of the path of the linear sector 21 until the maximum flow position 12 is substantially planar, allowing gentle sliding of the transverse means 6 and therefore gentle rotation of the rotary shaft 4.
  • the transverse means 6 for locking the rotation in the embodiment of the gas tap shown in Figures 1 and 2 is a pin transversely housed in the rotary shaft 4, but in other embodiments it can be a transverse projection forming a single part with the rotary shaft 4, this transverse projection preferably having a substantially rectangular shape.
  • the transverse means 6 slide over the sliding surface 10, it is exerting a friction force due to the force F exerted by the return spring 5.
  • a tactile and/or sound indication of the rotation of the rotary shaft 4 which the user can perceive is produced in the undulated sector 13 of the sliding surface 10, and due to the sliding of the transverse means 6 over the protuberances 15 and housings 11.
  • the transverse means 6 When the transverse means 6 is located in the housings 11, different positions for regulating the gas flow G are defined, which allows discretely regulating the gas flow, i.e., defining different specific positions with a specific gas flow range.
  • This defined position of the housings 11 allows defining visual indications that can be related with the user's cooking habits. For example by graphically indicating on the control knob, or in the control panel, or directly in the gas cooking appliance (not shown), the positions for regulating gas corresponding to the different positions of the gas tap 1.
  • the cover 7 of the gas tap 1 is made from a thin metal sheet by means of stamping operations, the different parts of said cover 7 being formed such that subsequent machining operations can be omitted.
  • the cover 7 can also be made by means of molding a lightweight metal alloy, performing subsequent machining operations.

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)
  • Taps Or Cocks (AREA)
EP12382467.4A 2012-11-27 2012-11-27 Gashahn für eine Kocheinrichtung Active EP2735795B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP12382467.4A EP2735795B1 (de) 2012-11-27 2012-11-27 Gashahn für eine Kocheinrichtung
SI201230929A SI2735795T1 (sl) 2012-11-27 2012-11-27 Plinska pipa za kuhalno napravo
ES12382467.4T ES2629985T3 (es) 2012-11-27 2012-11-27 Grifo de gas para un aparato de cocina
PL12382467T PL2735795T3 (pl) 2012-11-27 2012-11-27 Zawór gazowy do urządzenia kuchennego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12382467.4A EP2735795B1 (de) 2012-11-27 2012-11-27 Gashahn für eine Kocheinrichtung

Publications (2)

Publication Number Publication Date
EP2735795A1 true EP2735795A1 (de) 2014-05-28
EP2735795B1 EP2735795B1 (de) 2017-02-01

Family

ID=47594456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12382467.4A Active EP2735795B1 (de) 2012-11-27 2012-11-27 Gashahn für eine Kocheinrichtung

Country Status (4)

Country Link
EP (1) EP2735795B1 (de)
ES (1) ES2629985T3 (de)
PL (1) PL2735795T3 (de)
SI (1) SI2735795T1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3438542A1 (de) 2017-08-02 2019-02-06 Copreci, S.Coop. Gasventil mit vorrichtung für taktiles feedback und kochgerät mit diesem gasventil
EP3438536A1 (de) 2017-08-02 2019-02-06 Copreci, S.Coop. Gasventil mit vorrichtung für taktiles feedback und kochgerät mit diesem gasventil

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB682095A (en) 1950-02-14 1952-11-05 Cannon Iron Foundries Ltd Improvements relating to gas taps and cocks
US3751003A (en) * 1971-09-24 1973-08-07 Anderson Brass Co Fluid valve
US4137945A (en) * 1976-06-01 1979-02-06 W. A. Deutsher Pty. Ltd. Gas tap
US6726175B1 (en) * 1999-11-02 2004-04-27 Fisher & Paykel Appliances Limited Gas valve
US20050284519A1 (en) * 2004-06-02 2005-12-29 Inigo Albizuri Gas tap for a cooking appliance, with a cover for the rotary shaft
US20110037007A1 (en) * 2009-08-11 2011-02-17 Xueya Li Gas Rotary Valve
WO2011104230A2 (en) * 2010-02-23 2011-09-01 Coprecitec, S.L. Regulation valve for a gas cooking appliance

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB682095A (en) 1950-02-14 1952-11-05 Cannon Iron Foundries Ltd Improvements relating to gas taps and cocks
US3751003A (en) * 1971-09-24 1973-08-07 Anderson Brass Co Fluid valve
US4137945A (en) * 1976-06-01 1979-02-06 W. A. Deutsher Pty. Ltd. Gas tap
US6726175B1 (en) * 1999-11-02 2004-04-27 Fisher & Paykel Appliances Limited Gas valve
US20050284519A1 (en) * 2004-06-02 2005-12-29 Inigo Albizuri Gas tap for a cooking appliance, with a cover for the rotary shaft
US20110037007A1 (en) * 2009-08-11 2011-02-17 Xueya Li Gas Rotary Valve
WO2011104230A2 (en) * 2010-02-23 2011-09-01 Coprecitec, S.L. Regulation valve for a gas cooking appliance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3438542A1 (de) 2017-08-02 2019-02-06 Copreci, S.Coop. Gasventil mit vorrichtung für taktiles feedback und kochgerät mit diesem gasventil
EP3438536A1 (de) 2017-08-02 2019-02-06 Copreci, S.Coop. Gasventil mit vorrichtung für taktiles feedback und kochgerät mit diesem gasventil

Also Published As

Publication number Publication date
EP2735795B1 (de) 2017-02-01
PL2735795T3 (pl) 2017-09-29
ES2629985T3 (es) 2017-08-17
SI2735795T1 (sl) 2017-05-31

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