EP3273321B1 - Bouton de commande rotatif d'une cuisinière à gaz - Google Patents

Bouton de commande rotatif d'une cuisinière à gaz Download PDF

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Publication number
EP3273321B1
EP3273321B1 EP17178184.2A EP17178184A EP3273321B1 EP 3273321 B1 EP3273321 B1 EP 3273321B1 EP 17178184 A EP17178184 A EP 17178184A EP 3273321 B1 EP3273321 B1 EP 3273321B1
Authority
EP
European Patent Office
Prior art keywords
gas cooker
knob
gas
cooker according
front panel
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.)
Active
Application number
EP17178184.2A
Other languages
German (de)
English (en)
Other versions
EP3273321A2 (fr
EP3273321A3 (fr
Inventor
Yücel Ceylan
Sevgi COSAR
Gürkan Tuban
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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.)
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Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3273321A2 publication Critical patent/EP3273321A2/fr
Publication of EP3273321A3 publication Critical patent/EP3273321A3/fr
Application granted granted Critical
Publication of EP3273321B1 publication Critical patent/EP3273321B1/fr
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Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05GCONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/08Controlling members for hand actuation by rotary movement, e.g. hand wheels
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05GCONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/03Means for enhancing the operator's awareness of arrival of the controlling member at a command or datum position; Providing feel, e.g. means for creating a counterforce

Definitions

  • the present invention relates to a gas cooker with control knobs and particularly to a gas cooker having a cooker body with a front panel to which a control knob is mounted, a gas tap having a flow control member controlled by a gas tap shaft which is rotated by said control knob.
  • each rotary control knob interacts with a gas tap inside the gas cooker.
  • each gas tap includes a flow control member rotated by its respective gas tap shaft. Accordingly, each control knob is connected to one gas tap shaft in a shape coupling manner so that gas flow is adjusted when user rotates the control knob.
  • US5906141 describes a device which permits locking of a control knob which can rotate around a cylindrical support and includes a lateral face with at least one first locking boss and a lateral face of a bracelet which has at least one second locking boss.
  • the ring is movable in translation according to the axis between a locked position of the knob, in which the ring is prevented from rotating around the axis when the first and second bosses are engaged, and between a released position in which the first and second bosses are decoupled.
  • EP1388872 describes an operating mechanism for rotational switch avoiding unintentional actuation. Accordingly, a variable output device mounted on a mounting unit with the operating shaft displaceable.
  • TR2013/15150 describes a cooking appliance including a tactile feedback device, of which at least a portion is accommodated within a tap body of the gas tap, and which includes a follower configured to extend radially from the tap body towards a flow control element in order to provide sensory adjustment of gas adjustment levels by rotation of the button.
  • WO 2015/097119 A1 discloses a gas cooker according to the preamble of Claim1.
  • a purpose of the invention is to allow users to feel certain gas adjustment levels when using a control knob of a gas cooker.
  • Another purpose of the invention is to allow users to adjust burner flames with respect to certain flame levels even though visual signs provided around the control knobs for indicating such levels mostly or completely faded out.
  • the present invention is a gas cooker having a cooker body with a front panel to which a control knob is mounted and a gas tap with a flow control member controlled by a gas tap shaft rotated by said control knob.
  • said control knob comprises a knob body connected to the gas tap shaft and a body housing configured to at least partly receive said knob body in a freely rotating manner and to be fixedly mounted to said front panel, said body housing having a resilient member and said knob body having ribs each of which gets into contact with said resilient member respectively at certain intervals during the rotation of the knob body and wherein a protection cap, made of a metallic material, is placed as covering the distal end of each rib so that it resides between the resilient member and its respective rib during contact.
  • a protection cap made of a metallic material
  • the body housing comprises a tail section extending axially through an A axis from a mounting opening of the front panel towards inside of the gas cooker and configured to allow snap fit mounting to the front panel.
  • the body housing can easily be mounted to the front panel without using bolt or screws by simply pushing it towards the gas cooker.
  • said tail section comprises resilient walls extending inwardly along said A axis and erected in peripherally spaced manner with respect to each other.
  • at least one of said resilient walls has a tab on its outer face.
  • the body housing further comprises plurality of fixing tongues configured to be inserted through corresponding slots formed on the front panel.
  • the body housing is prevented from rotating with respect to the front panel.
  • the body housing comprises a seat portion defined by a side wall which extends along the whole periphery of the body housing so that it at least partly receives the knob body in a freely rotating manner.
  • knob body can be rotated with respect to the body housing.
  • the resilient member is fixed to the periphery of the seat portion in a manner that it projects radially and inwardly from the periphery.
  • the resilient member is made of an elastically deformable metallic material.
  • the knob body has a hollow cylindrical-like geometry and plurality of ribs are provided in a peripherally spaced manner along its annular face.
  • each rib extends parallel to the A axis and has a distal end partly projecting from the annular face.
  • each rib contact to the resilient member via their respective distal end to produce tactile feeling for the user.
  • said protection caps are part of a protection bracelet placed to the knob body and having a flat cross section.
  • said protection caps are part of a protection bracelet placed to the knob body and having a flat cross section.
  • said protection bracelet comprises a bracelet section extending along the inner face of the knob body's side wall in a manner of resting onto said inner face.
  • FIG 1 illustrates a gas cooker (1) having a cooker body (10) and a front panel (11) to which plurality of control knobs (20) embodying the present invention is mounted.
  • the gas cooker (1) also comprises gas taps each having a flow control member rotated by its respective gas tap shaft (not shown in figures). Accordingly, each control knob (20) is connected to one gas tap shaft in a shape coupling manner so that gas flow is adjusted when user rotates the control knob (20).
  • the control knobs of the present invention might be applied to any other electric or gas fired device.
  • the control knob (20) has a cylindrical-like geometry and mainly comprises a knob body (30) connected to the gas tap shaft of one gas tap of the gas cooker in a shape coupling manner and a body housing (50) to which said knob body (30) is partly seated in a freely rotating manner and which is mounted to the gas cooker (1) via a mounting opening formed on the front panel.
  • a shaft sleeve (32) to which gas tap shaft is inserted in a shape coupling manner, is shown.
  • the shaft sleeve (32) axially extends along an A axis from the center of the base towards inside the gas cooker (1).
  • radial support walls (33) are also provided radially extending from the shaft sleeve (32) towards the inner face of the knob body's side wall (31). Additionally, as it will be explained in detail below, the knob body (30) rotates with respect to the body housing (50) in a manner that user can percept predefined gas adjustment levels at certain rotation angels of the knob body (30). On the other hand, both the knob body (30) and the body housing (50) are made of a plastic material.
  • a hub section (55) which fixedly attaches the body housing (50) to the front panel (10).
  • said hub section (55) incorporates a tail section (551) extending axially through said A axis from the mounting opening towards inside of the gas cooker (1).
  • the tail section (551) comprises resilient walls (552) extending along the A axis - inwardly and formed in a peripherally spaced manner with respect to each other. Accordingly, resilient walls (552) are separated from each other by cut-outs (553) formed therebetween.
  • Each resilient wall (552) is in an arc form and thus all resilient walls (552) define an annular cross section sized to allow tight connection with the mounting opening.
  • each resilient wall (552) includes a tab (554) on its outer face.
  • body housing (50) is easily mounted to the front panel (11) in a snap fit manner.
  • tabs (554) get into contact with the front panel (11) and thus each resilient walls (552) bends thanks to the cut-outs (553) opened therebetween.
  • FIG 5b when the tabs (554) pass through the mounting opening mounting is completed and removal of the body housing (50) from the mounting opening is prevented by the tabs (554) abutting on the inner face of the front panel (11).
  • 4 equivalent resilient walls (552) each having one tab (554) thereon are used for forming the tail section (551).
  • Rear side of the body housing also comprises plurality of fixing tongues (56) extending axially through the A axis and formed as peripherally spaced in the vicinity of hub section's periphery. As shown in figure 5b , each fixing tongue (56) also passes through its corresponding slot (111) formed on the front panel (11) during mounting of the body housing (50). Thus, the fixing tongues (56) prevent rotation of the body housing (50) with respect to the front panel.
  • 3 fixing tongues (56) are provided which are equally spaced from each other so as to define corners of a virtual equilateral triangle.
  • the body housing (50) comprises a seat portion (52) which receives the knob body (30) and is defined by a side wall (51) which extends along the whole periphery of the body housing (50).
  • the height of the side wall (51) and thus the depth of the seat portion (52) are configured to partly receive the knob body (30).
  • the body housing (50) and the knob body (30) are configured to give tactile effect so that a user can percept certain gas adjustment levels while using the control knob (20) of the invention.
  • the knob body (30) includes ribs (34) each indicating one gas adjustment level and correspondingly the body housing (50) includes a resilient member (53) which gets into contact with the ribs (34) respectively as user rotates the knob body (30). Details will hereunder be explained.
  • the resilient member (53) is fixed to the periphery of the seat portion (52).
  • the resilient member (53) projects radially and inwardly from the periphery and made of an elastically deformable metallic material.
  • the resilient member (53) comprises a projecting section (531) in a V-like form and a holding section (532) defined by two wings each of which extends from one open end of the V form along the part of the seat portion's periphery.
  • the resilient member (53) is secured to the body housing (50) during plastic injection molding process and thus the body housing (50) is removed from its mold as already including the resilient member at the end of the injection process.
  • said resilient member (53) is made of a metallic material and preferably obtained by forming a metal strip.
  • the knob body (30) has a hollow cylindrical-like geometry.
  • plurality of ribs (34) are provided in a peripherally spaced manner and each of them extends along the side wall (31) parallel to the A axis and partly projects outwardly.
  • the ribs (34) preferably extend from the base of the knob body (30) and ends up with a distal end (341) partly projecting from the annular face (35) of the knob body (30).
  • each rib (34) has a thickness so as to radially project from the side wall (31).
  • the ribs (34) are in column-like form.
  • Numbers of the ribs and spaces therebetween define gas adjustment levels to be felt by the user.
  • a protection bracelet (40) which is preferably obtained by forming a metallic strip.
  • Said protection bracelet (40) comprises a bracelet section (42) and plurality of protection caps (41) formed along the bracelet section (42) in a peripherally spaced manner.
  • the protection caps (41) are, however, narrower than the bracelet section (42) due to cut-outs made in bottom part thereof during forming process.
  • 4 protection caps (41) are formed in a manner that each protection cap (41) corresponds to one rib (34).
  • the protection bracelet (40) is placed to the knob body (30) in a manner that each protection cap (41) encircles a corresponding distal end (341) of one rib (34) while bracelet section (42) extends along the inner face of the knob body's side wall (31). Thanks to this embodiment, the protection bracelet (40) ensures that distal ends (341), which are made of plastic, are not worn by the resilient member (53) made of metal when both features get into contact during rotation of the control knob (20).
  • bracelet section (42) is wider than the protection caps (41), the bracelet section (42) resting onto the inner face of the side wall (31) provides a retaining function preventing removal of the protection bracelet (40) from the knob body (30).
  • bracelet section (42) seats onto one end of each radial support walls (33).
  • FIG 4a position of the resilient member (53) in respect of ribs is shown. Accordingly, when user rotates the knob body (30), body housing (50) fixed to the front panel (11) remains its position. Thus, the ribs (34) respectively advances towards the resilient member (53) as the user keep rotating the knob body (30) and after certain degree of rotation the first rib gets into contact with the resilient member (53) via its respective protection cap (41) thereon, giving tactile feeling to the user as regards an associated gas adjustment level. If user's increases his/her force to rotate a certain extent, the resilient member (53) deforms allowing the first rib to pass the resilient member (53).
  • a pressing spring (36) is also provided inside the shaft sleeve (32) in a manner that said pressing spring (36) exerts a force to the gas tap shaft. Thanks to this, if the knob body (30) is pulled outwardly the frictional force between the pressing spring (36) and the gas tap shaft prevents easy removal of the knob body (30).
  • Figure 5a shows frontal view of the control knob (20) of the invention. Accordingly, protection caps (41) each covering a corresponding rib (34) and the resilient member (53) interacting with all the ribs (34) via protection caps (41) can be seen from this figure.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Claims (12)

  1. Cuisinière au gaz (1) comprenant un bâti de cuisinière (10) avec un panneau avant (11) auquel un bouton de commande (20) est monté et un robinet de gaz comprenant un élément de commande de débit contrôlé par une came de robinet de gaz qu'on tourne par ledit bouton de commande (20), dans lequel ledit bouton de commande (20) comprend un corps de bouton (30) raccordé à la came du robinet de gaz et un logement de corps (50) réalisé pour au moins partiellement recevoir ledit corps de bouton (30) de manière librement rotative et pour être monté fixement audit panneau avant (11), caractérisé en ce que ledit logement de corps (50) comprend un élément résilient (53) et ledit corps de bouton (30) présente des nervures (34) dont chacune entre en contact avec ledit élément résilient (53) respectivement à certains intervalles pendant la rotation du corps de bouton (30) et dans lequel un recouvrement de protection (41), fait de matière métallique, est placé sur chaque nervure (34) de sorte qu'il (41) est situé entre l'élément résilient (53) et sa nervure respective (34) pendant le contact.
  2. Cuisinière au gaz selon la revendication 1, dans laquelle le logement de corps (50) comprend une section de queue (551) s'étendant axialement dans un axe A d'une ouverture de montage du panneau avant (11) vers l'intérieur de la cuisinière au gaz (1) et réalisée pour permettre un montage par encliquetage au panneau avant (11).
  3. Cuisinière au gaz selon la revendication 2, dans laquelle ladite section de queue (551) comprend des parois résilientes (552) s'étendant vers l'intérieur le long dudit axe A et qui se dressent d'une manière espacée sur la périphérie l'une par rapport à l'autre.
  4. Cuisinière au gaz selon la revendication 3, dans laquelle au moins l'une desdites parois résilientes (552) comprend une patte (554) sur sa face extérieure.
  5. Cuisinière au gaz selon l'une quelconque des revendications précédentes, dans laquelle le logement de corps (50) comprend en outre une pluralité de languettes de fixation (56) réalisées pour être insérées dans des fentes (111) correspondantes formées sur le panneau avant (11).
  6. Cuisinière au gaz selon l'une quelconque des revendications précédentes, dans laquelle le logement de corps (50) comprend une partie formant siège (52) définie par une paroi latérale (51) qui s'étend sur toute la périphérie du logement de corps (50) de sorte qu'elle reçoit au moins partiellement le corps de bouton (30) de manière librement rotative.
  7. Cuisinière au gaz selon la revendication 6, dans laquelle l'élément résilient (53) est fixé à la périphérie de la partie formant siège (52) de manière qu'elle (53) s'avance radialement et vers l'intérieur depuis la périphérie.
  8. Cuisinière au gaz selon la revendication 1 ou 7, dans laquelle l'élément résilient (53) est constitué d'une matière métallique élastiquement déformable.
  9. Cuisinière au gaz selon la revendication 1, dans laquelle le corps de bouton (30) présente une géométrie creuse de type cylindrique et une pluralité de nervures (34) sont présentes réparties écartées sur la périphérie sur sa face annulaire (35).
  10. Cuisinière au gaz selon la revendication 9, dans laquelle chaque nervure (34) s'étend parallèle à l'axe A et comprend une extrémité distale (341) s'avançant en partie de la face annulaire (35).
  11. Cuisinière au gaz selon la revendication 1, dans laquelle lesdits recouvrements de protection (41) font partie d'un bracelet de protection (40) placé sur le corps de bouton (30) et présentant une coupe plate.
  12. Cuisinière au gaz selon la revendication 11, dans laquelle ledit bracelet de protection (40) comprend une section de bracelet (42) s'étendant le long de la face intérieure de la paroi latérale du corps de bouton (31) de manière à reposer sur ladite face intérieure.
EP17178184.2A 2016-07-18 2017-06-27 Bouton de commande rotatif d'une cuisinière à gaz Active EP3273321B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR201609901 2016-07-18

Publications (3)

Publication Number Publication Date
EP3273321A2 EP3273321A2 (fr) 2018-01-24
EP3273321A3 EP3273321A3 (fr) 2018-02-07
EP3273321B1 true EP3273321B1 (fr) 2022-08-17

Family

ID=59239862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17178184.2A Active EP3273321B1 (fr) 2016-07-18 2017-06-27 Bouton de commande rotatif d'une cuisinière à gaz

Country Status (3)

Country Link
EP (1) EP3273321B1 (fr)
CN (1) CN207299042U (fr)
ES (1) ES2929778T3 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015097119A1 (fr) * 2013-12-24 2015-07-02 BSH Hausgeräte GmbH Appareil de cuisson comprenant un robinet de gaz équipé d'un dispositif de retour tactile

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2284923A1 (fr) * 1974-09-12 1976-04-09 Levy Pierre Bouton de commande, en particulier pour appareil electrique
FR2745398B1 (fr) 1996-02-28 1998-05-07 Sundstrand Corp Dispositif de verrouillage de la position angulaire d'un bouton de manoeuvre
US6878887B2 (en) 2002-08-07 2005-04-12 Matsushita Electric Industrial Co., Ltd. Anti-malfunction mechanism for variable output device
EP1795990B1 (fr) * 2005-12-07 2010-11-10 Behr-Hella Thermocontrol GmbH Unité de commande pour un composant de véhicule

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015097119A1 (fr) * 2013-12-24 2015-07-02 BSH Hausgeräte GmbH Appareil de cuisson comprenant un robinet de gaz équipé d'un dispositif de retour tactile

Also Published As

Publication number Publication date
EP3273321A2 (fr) 2018-01-24
ES2929778T3 (es) 2022-12-01
CN207299042U (zh) 2018-05-01
EP3273321A3 (fr) 2018-02-07

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