EP2233999B1 - Bouton - Google Patents

Bouton Download PDF

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Publication number
EP2233999B1
EP2233999B1 EP09004151A EP09004151A EP2233999B1 EP 2233999 B1 EP2233999 B1 EP 2233999B1 EP 09004151 A EP09004151 A EP 09004151A EP 09004151 A EP09004151 A EP 09004151A EP 2233999 B1 EP2233999 B1 EP 2233999B1
Authority
EP
European Patent Office
Prior art keywords
grip
housing
knob
shaft
sealing means
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
EP09004151A
Other languages
German (de)
English (en)
Other versions
EP2233999A1 (fr
Inventor
Klaus Winkelmann
Johannes Gerster
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.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to AT09004151T priority Critical patent/ATE556368T1/de
Priority to EP09004151A priority patent/EP2233999B1/fr
Publication of EP2233999A1 publication Critical patent/EP2233999A1/fr
Application granted granted Critical
Publication of EP2233999B1 publication Critical patent/EP2233999B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
    • G05G1/087—Controlling members for hand actuation by rotary movement, e.g. hand wheels retractable; Flush control knobs
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G25/00—Other details or appurtenances of control mechanisms, e.g. supporting intermediate members elastically
    • G05G25/04—Sealing against entry of dust, weather or the like
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/03—Means 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/08—Turn knobs
    • H01H2003/085—Retractable turn knobs, e.g. flush mounted
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
    • H01H3/605—Mechanical arrangements for preventing or damping vibration or shock making use of a fluid damper

Definitions

  • the present invention relates to a knob, in particular to a rotary control knob for an appliance, such as an oven, a dish washer, a cooker, a dryer, etc.
  • Knobs for controlling one or more functions of appliances are already known in many different designs.
  • This knob is designed as a rotary control knob and comprises a housing having a grip receiving hole; a grip inserted in the housing through the grip receiving hole, whereas the grip is movable within the housing between a countersunk position and an operating position by means of a countersinking mechanism; unlockable locking means for holding the grip in the countersunk position; and returning means in form of a spring for returning the grip from the countersunk position to the operating position after unlocking the locking means.
  • a damper is provided, which counteracts the returning force of the spring.
  • the damper is provided as a conventional hydraulic or pneumatic damper and comprises a cylinder and a displacement element.
  • the cylinder is stationary held within the housing of the knob.
  • the displacement element is fixed to the grip, such that it follows the movement of the grip, and is received and guided in the cylinder in such a manner, that a negative pressure is created within the internal space defined between the displacement element and the cylinder when the grip is moved. In this manner, the above-mentioned damping force is provided.
  • the arrangement of a conventional damper increases the total number of components of the knob. This leads to higher production and installation costs.
  • a knob in particular a rotary control knob, which has an alternative configuration in order to reduce the total number of components and thus the production and installation costs.
  • the present invention provides a knob comprising a housing having a grip receiving hole; a countersinking mechanism; a grip inserted in the housing through the grip receiving hole, whereas the grip is axially movable within the housing between a countersunk position and an operating position by means of the countersinking mechanism; unlockable locking means for holding the grip in the countersunk position; and returning means for returning the grip from the countersunk position to the operating position after unlocking the locking means.
  • the outer diameter of the grip which defines the gripping surface to be gripped by a user, is inserted in the housing and the knob further comprises sealing means, which are provided between the housing and the outer diameter of the grip for providing an air tight seal; and at least one venting opening, which is formed in the housing, whereas the cross section of the at least one venting opening is chosen in such a manner, that a predetermined air flow rate is entering or leaving the housing when moving the grip between the countersunk position and the operating position.
  • the housing for receiving the grip forms the cylinder of a damper
  • the grip which is received within the housing, forms the displacement element of a damper
  • the damping force of this damper is adjustable by choosing the size of the venting hole. Accordingly, it is not necessary to install a conventional damper as a separate component. Thus, the total number of components as well as the production and installation costs can be reduced.
  • the knob is a rotary control knob
  • the grip is rotatably arranged within the housing and is coupled with a shaft of a control unit in its operating position, said control unit serves for controlling a predetermined function of an appliance.
  • the shaft is preferably inserted in the housing through a shaft receiving hole, whereas, in a preferred embodiment, a second air tight sealing means is provided in the gap defined between the housing and the shaft. Accordingly, air cannot penetrate or leave the interior of the housing through the gap.
  • the housing and the shaft can be connected and/or sealed by a screw connection. Furthermore, other connection techniques can be applied.
  • the sealing means are preferably formed as a sealing lip and/or as a sealing having a V-shaped cross section. Such sealing means have proved to be very appropriate for providing an air tight seal.
  • the first sealing means are preferably fixed to the housing or to the grip or to a separate element. If a separate element is used, said separate element is advantageously formed as a disc, which is inserted in the housing and fixed to the housing or to a part of the countersinking mechanism.
  • the sealing means are preferably made from plastic material, in particular polyoxymethylene or Teflon, silicone or rubber.
  • the present invention provides a control panel of an appliance, in particular domestic appliance, comprising a knob of the above mentioned kind.
  • the present invention provides an appliance, in particular a domestic appliance, comprising a knob or a control panel as defined above.
  • FIGs 1 and 2 show a first embodiment of a knob 10 according to the present invention, which is received in a control panel 12 of a domestic appliance, such as an oven, a dish washer, a washing machine, a dryer, etc.
  • the knob 10 comprises a housing 14, which is fixed to the control panel 12 in a torque proof manner.
  • the housing 14 is formed with a grip receiving hole 16, which opens towards the front face 18 of the control panel 12.
  • a grip 20 is inserted in the grip receiving hole 16 of the housing 14 and is coupled to a countersinking mechanism 22 in such a manner, that the grip 20 is axially movable within the housing 14 between a countersunk position (shown in FIG 1 ) and an operating position, in which the grip projects from the front face 18 of the control panel 12.
  • the knob 10 comprises an unlockable locking means 24 for holding the grip 16 in the countersunk position.
  • returning means 26 are provided in the form of a spring for returning the grip 20 from the countersunk position to the operating position after unlocking the locking means 24.
  • the countersinking mechanism 22 is coupled to a shaft 26 of a control unit 30 for controlling a predetermined function of the appliance.
  • the shaft 26 is inserted through a shaft receiving hole 32, which is formed within housing 14 opposite to the grip receiving hole 16.
  • a user pushes the grip 20 towards the control unit 30 for a start, in order to unlock the locking means 24 holding the grip 20 in the countersunk position shown in FIG 1 . Thereafter, the grip 20 is automatically transferred to its operating position by the return force of the returning means 26. Thereafter, the user can turn the grip 20 to the left right in order to perform an adjustment of the assigned function.
  • This rotary motion is transferred to the control unit 30 by means of the shaft 28, what leads to an adjustment of the function controlled by the control unit 30.
  • the general design of the grip 20, of the countersinking mechanism 22, of the locking means 24, of the returning means 26, of the shaft 28 and of the control unit 30 is known to a person skilled in the art. Accordingly, these components are not described in further detail herein.
  • the housing 14 is constructed in an essentially air tight manner.
  • a first sealing means 34 in the form of a sealing ring having a V-shaped cross section is inserted in a circumferential grove 36 formed along the inner diameter of the housing 14 close to the front face 18 of the control panel 12, such that the sealing means provides an air tight seal between the housing 14 and the grip 20.
  • a second sealing means 38 which can also be designed as a screw connection, can be arranged within the shaft receiving hole 32 for providing an air tight seal between the housing 14 and the shaft 28. Accordingly, air cannot enter or leave the housing 14 through the grip receiving hole 16 or the shaft receiving hole 32.
  • a venting hole 40 which is formed in the housing 14, allows a passing of air during the axial movement of the grip 20 between the countersunk position and the operating position. More precisely, air is pushed out of the interior space of the housing 14 when moving the grip 20 from the operating position towards the countersunk position, and air is suncked in through the venting hole 40, when the grip 20 is moved from the countersunk position towards the operating position. Accordingly, a damping force is created during the axial movement of the grip 20, whereas the flow rate of air flowing through the venting hole 40 and thus the strength of the damping force is determined by the cross section or size of the venting hole 40. Therefore, the damping force can be varied by changing the cross section of the venting hole 40.
  • FIGs 3 and 4 show a knob 50 according to a second embodiment of the present invention.
  • the design of the knob 50 essentially corresponds to the one of the knob 10 shown in FIGs 1 and 2 .
  • the first sealing means 34 is not fixed to the housing 14 but inserted in a circumferential groove 52 formed close to the free end 54 of the cup-shaped grip 20 in order to provide the air tight seal between the housing 14 and the grip 20.
  • FIGs 5 and 6 show a knob 60 according to a third embodiment of the present invention.
  • the knob 60 comprises a housing 62, which is fixed to the backside of a control panel 64 in a torque proof manner.
  • the housing 62 comprises a grip receiving hole 66 facing towards the control panel 64.
  • the grip 68 is inserted in the housing 62 through the grip receiving hole 66 and coupled to a countersinking mechanism 70 in such a manner, that the grip 68 is axially movable between the countersunk position and an operating position.
  • This movement of the grip 68 is guided by a sliding bushing 72, which is fixed to the control panel 64 and surrounds the outer diameter of the grip 68.
  • the knob 60 comprises an unlockable locking means 74 for holding the grip 68 in the countersunk position.
  • a returning means 76 in the form of a spring is coupled to the grip 68 in order to push the grip 68 from the countersunk position to the operating position after unlocking the locking means 74.
  • the countersinking mechanism 70 is coupled to a control unit 78 by means of a shaft 80, which extends into the inner space of the housing 62 through a shaft receiving hole 82 formed in the housing 62.
  • a disc shaped element 84 is fixed to the outer diameter of the countersinking mechanism 70 in a position close to the free end 86 of the cup-shaped grip 68 arranged in its countersunk position.
  • a circumferential grove 88 is formed, which receives a ring-shaped first sealing means 90 that abuts against the inner diameter of the housing 62.
  • a second sealing means 92 which can also be designed as a screw connection, can be arranged between the housing 62 and the shaft 80 in order to provide an air tight seal between these components.
  • a venting hole 94 is formed through the wall of the housing 62 to form a connection between the interior space of the housing 62 and the environment.
  • FIGs 7 and 8 show a knob 100 according to a fourth embodiment of the present invention.
  • the design of the knob 100 is very similar to the one of the knob 60 shown in FIGs 5 and 6 .
  • the air tight sealing of the grip receiving hole 66 provided by means of the disc shape element 84, the groove 88 and the first sealing means 90 is replaced by a first sealing means 102, which is fixed to the free end 104 of the cup-shaped housing 106, said first sealing means 102 sealing the ring-shaped space between the housing 106 and the knob 60.
  • FIGs 9 and 10 show a knob 110 according to a fifth embodiment of the present invention.
  • the design of the knob 110 essentially corresponds to the one of the knob 100 shown in FIGs 7 and 8 .
  • the ring-shaped sealing means 112 is,pressed against the free end 104 of the housing 106 by means of a clamping ring 114 for sealing the ring-shaped space between the housing and the grip.
  • control panels 64 in embodiments according to FIGs 5 , 7 and 9 are preferably glas panels.

Claims (9)

  1. Bouton (10; 50; 60; 100; 110) comprenant
    - un boîtier (14; 62; 106) présentant un trou de réception de prise (16; 66),
    - un mécanisme d'enfoncement,
    - une prise (20; 68) insérée dans le boîtier (14; 62; 106) à travers le trou de réception de prise (16; 66), ladite prise (20; 68) étant déplaçable axialement dans le boîtier (14; 62; 106) entre une position enfoncée et une position fonctionnelle au moyen du mécanisme d'enfoncement,
    - un moyen de verrouillage pouvant être déverrouillé (24; 74) pour maintenir la prise (20; 68) dans la position enfoncée, et
    - un moyen de retour (26; 76) pour ramener la prise (20; 68) de la position enfoncée à la position fonctionnelle après le déverrouillage du moyen de verrouillage, caractérisé en ce que
    - le diamètre extérieur de la prise (20; 68), qui définit la surface de préhension à saisir par un utilisateur, est inséré dans le boîtier (14; 62; 106),
    - des premiers moyens d'étanchéité (34; 90; 102; 112) sont réalisés entre le boîtier (14; 62; 106) et le diamètre extérieur de la prise (20; 68) pour réaliser un joint étanche à l'air, et
    - au moins une ouverture d'aération (40; 94) est formée dans le boîtier (14; 62; 106), tandis que la section transversale de la au moins une ouverture d'aération (40; 94) est choisie de manière qu'un débit d'écoulement d'air prédéterminé entre dans ou sort du boîtier (14; 62; 106) lors du déplacement de la prise (20; 68) entre la position enfoncée et la position fonctionnelle, où le boîtier pour la réception de la prise forme le cylindre d'un amortisseur, et la prise qui est reçue dans le boîtier, forme l'élément de déplacement d'un amortisseur, tandis que la force d'amortissement de cet amortisseur est ajustable en sélectionnant la taille de l'ouverture d'aération.
  2. Bouton (10; 50; 60; 100; 110) selon la revendication 1, caractérisé en ce que le bouton (10; 50; 60; 100; 110) est un bouton de commande rotatif, tandis que la prise (20; 68) est agencée d'une manière rotative et est couplée à un arbre (28; 80) d'une unité de commande (30; 78) dans sa position fonctionnelle.
  3. Bouton (10; 50; 60; 100; 110) selon la revendication 2, caractérisé en ce que l'arbre (28; 80) est inséré dans le boîtier (14; 62; 106) à travers un trou de réception d'arbre (32; 82), tandis que de préférence un deuxième moyen de scellement étanche à l'air (38; 92) est réalisé dans l'espace défini entre le boîtier (14; 62; 106) et l'arbre (28; 80) et/ou où de préférence le boîtier (14; 62; 106) et l'arbre (28; 80) sont reliés et/ou scellés par une connection par vis ou par une autre technique de connection.
  4. Bouton (10; 50; 60; 100; 110) selon l'une des revendications précédentes, caractérisé en ce que les moyens d'étanchéité (34, 38, 90, 92, 102, 112) sont réalisés comme une lèvre d'étanchéité et/ou comme un joint d'étanchéité d'une section transversale en forme de V.
  5. Bouton (10; 50; 60; 100; 110) selon l'une des revendications précédentes, caractérisé en ce que le premier moyen d'étanchéité (34; 90; 102; 112) est fixé au boîtier (14; 62; 106) ou à la prise (20; 68) ou à un élément séparé (84).
  6. Bouton (60) selon la revendication 5, caractérisé en ce que l'élément séparé (84) est un disque, qui est fixé au boîtier ou à une partie du mécanisme d'enfoncement (22; 70).
  7. Bouton (10; 50; 60; 100; 110) selon l'une des revendications précédentes, caractérisé en ce que les moyens d'étanchéité (34, 38, 90, 92, 102, 112) sont réalisés en un matériau plastique, en particulier en polyoxyméthylène ou Téflon, silicone ou caoutchouc.
  8. Panneau de commande (12) d'un appareil, en particulier d'un appareil domestique, comprenant un bouton (10; 50; 60; 100; 110) selon l'une quelconque des revendications précédentes.
  9. Appareil, en particulier appareil domestique, comprenant un bouton (10; 50; 60; 100; 110) selon l'une des revendications 1 à 7 ou un panneau de commande (12) selon la revendication 8.
EP09004151A 2009-03-24 2009-03-24 Bouton Active EP2233999B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT09004151T ATE556368T1 (de) 2009-03-24 2009-03-24 Knauf
EP09004151A EP2233999B1 (fr) 2009-03-24 2009-03-24 Bouton

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09004151A EP2233999B1 (fr) 2009-03-24 2009-03-24 Bouton

Publications (2)

Publication Number Publication Date
EP2233999A1 EP2233999A1 (fr) 2010-09-29
EP2233999B1 true EP2233999B1 (fr) 2012-05-02

Family

ID=40746209

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09004151A Active EP2233999B1 (fr) 2009-03-24 2009-03-24 Bouton

Country Status (2)

Country Link
EP (1) EP2233999B1 (fr)
AT (1) ATE556368T1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19610921C2 (de) * 1996-03-20 1999-10-07 Schott Glas Kochgerät
DE19951422B4 (de) 1999-10-26 2006-04-06 AEG Hausgeräte GmbH Versenkbare Drehbedieneinheit
ITTO20030315A1 (it) * 2003-04-23 2004-10-24 Itw Ind Components Srl Manopola di comando del tipo a scomparsa ad estrazione

Also Published As

Publication number Publication date
EP2233999A1 (fr) 2010-09-29
ATE556368T1 (de) 2012-05-15

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