EP2209131B1 - Appareil doté d'au moins un élément de commande - Google Patents

Appareil doté d'au moins un élément de commande Download PDF

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Publication number
EP2209131B1
EP2209131B1 EP09014951A EP09014951A EP2209131B1 EP 2209131 B1 EP2209131 B1 EP 2209131B1 EP 09014951 A EP09014951 A EP 09014951A EP 09014951 A EP09014951 A EP 09014951A EP 2209131 B1 EP2209131 B1 EP 2209131B1
Authority
EP
European Patent Office
Prior art keywords
appliance
snap
appliance according
designed
housing
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
EP09014951A
Other languages
German (de)
English (en)
Other versions
EP2209131A1 (fr
Inventor
Georgy Yltchev
Thomas Schulz
Christian Döbele
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.)
Sick AG
Original Assignee
Sick AG
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 Sick AG filed Critical Sick AG
Publication of EP2209131A1 publication Critical patent/EP2209131A1/fr
Application granted granted Critical
Publication of EP2209131B1 publication Critical patent/EP2209131B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2205/00—Movable contacts
    • H01H2205/016—Separate bridge contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H01H2215/014—Avoiding permanent dome inversion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/002—Casings sealed
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/028—Key stroke

Definitions

  • control elements formed in particular as a snap-action disk are known, wherein a snap disk is to be understood as meaning an element having a discontinuous transition characteristic, so that upon actuation of the operating element by applying an actuating force from the snap disk a switching stroke is generated and a snap action is carried out.
  • this snap-over is haptically perceptible to the user, so that he can recognize from the fact that he has triggered the switching operation successfully.
  • Control elements in the form of switches and buttons are increasingly subject to new requirements in industrial applications with regard to resistance to external influences, in particular effects of a mechanical, chemical or weather-related nature.
  • the mechanical actions are defined by possible damage by foreign objects which are able to scratch, abrade or penetrate surfaces, which can lead to a mechanical failure of the operating element.
  • equipment in many industrial sectors, for example the food industry, the solar energy industry or the pharmaceutical industry, equipment must meet the requirements of the IP69k class, which in particular requires that the equipment be cleaned by a high-pressure water jet, which has a pressure in the range from 80 bar to 100 bar and a water temperature of 80 ° C, at must withstand a beam distance of 100 to 150 mm undamaged.
  • high demands are placed on the stability and robustness of the operating element and of the device as well as the seal between operating element and device.
  • Weather-related damage to an operating system includes, for example, the lack of or insufficient resistance of the materials used with respect to ultraviolet radiation and ozone. Another problem arises from the required tightness, temperature resistance and thermal shock resistance of the controls.
  • the requirements of a haptic perception of the switching process are in the foreground for operating elements in order to provide a user-friendly operating element. This is defined by pressing a button by a tactile snap action, which is noticeable during the operation.
  • the DE 10 2004 004 136 B4 shows, for example, a small electrical appliance with a snap disc made of plastic.
  • the DE 41 39554 A1 discloses a snap plate made of sheet metal as a contact element for a switch, wherein an additional protective layer of plastic is present.
  • a disadvantage of Metal snap-action discs require that they require a degree of freedom at the outer edge in order to enable the mobility of the center of the snap-action disc.
  • Metal snap discs are therefore only on a wall or in a recess. If such discs are firmly clamped, the snap disc stiffens into an inflexible structure that can be deformed only by deformation.
  • complex structures such as the DE 10 2006 010 811 A1 to be taken additional sealing element of needs.
  • the object of the invention is therefore to provide a simply constructed, robust mechanical operating element for a device.
  • the device according to the invention with at least one operating element, which is arranged in a device housing of the device, wherein the operating element is designed as a snap disk made of metal, characterized in that the snap disc has an edge which is integrally connected to the device housing and a seal forms between the device housing and the control element, wherein an adjacent to the edge region of the snap-action disc is designed as a reversibly deformable decoupling region.
  • the reversibly deformable decoupling region between the actual region of the snap-action disc and the edge of the snap-action disc prevents the disc from stiffening into an inflexible structure, so that the operating comfort is retained as in the conventional snap-action discs.
  • the control element according to the invention is thereby transferred upon exertion of an actuating force from a stable state to a metastable state in which a lying below the snap-action electric switching element can be actuated by the stroke of the control element.
  • the inner portions of the operating element are elastically deformed in this state.
  • the decoupling region is reversibly deformed.
  • the snap-action disc After the removal of the actuation force, the snap-action disc returns to its original state due to the flexibility of the inner contour made possible by the decoupling area.
  • the decoupling region thus provides the necessary degree of freedom which is required for the actual snap action of the inner region of the snap disk.
  • the decoupling region is formed as an inclined surface, which allows a particularly simple manner of manufacturing the decoupling region.
  • the decoupling region is formed concentrically circumferentially to allow a simple construction of the operating element.
  • the snap-action disc is round and the decoupling area designed as a conical surface, resulting in a particularly simple constructed snap-action disc.
  • the snap disks can also be quadrangular, in particular square, or polygonal or oval.
  • the decoupling region may also be cylindrical in a preferred embodiment in an extreme embodiment.
  • the snap disc has a diameter and a switching stroke, wherein according to a preferred embodiment of the invention, the ratio of diameter to switching stroke is about 20: 1, whereby low actuation forces can be realized.
  • the snap disc on a convex dome view from the outside of the device housing and a concave paragraph arranged concentrically around the convex dome, which is followed concentrically by the decoupling region.
  • the snap disc is integrally connected to the device housing, so that there are no gaps or joints on the outside of the device and the device is thus easy to clean and meets the high hygiene requirements when using the device in the food industry.
  • the snap-action disc is connected by welding or gluing to the device housing, which allows a tight connection between the snap-action disc and the device housing in a simple manner.
  • the snap disc is embossed in a metal strip, which is connected to the device housing. This results in a simple manner a gap-free surface.
  • a plurality of operating elements for example a keyboard, can be manufactured particularly easily in this way and arranged on the device housing.
  • the device housing is made of metal or plastic, wherein the material used for the device housing preferably meet the requirements of the leakproofness class IP69k and / or are chemically resistant to the usually used in the food industry, the solar energy industry or the pharmaceutical industry aggressive cleaning media.
  • the device is preferably designed as a measuring or control device, in particular as an electrical or electronic sensor, in particular as an optoelectronic sensor, in particular as a light barrier or light grid.
  • the device is designed to be suitable for use in a moist environment.
  • the device is particularly preferably designed for use in the foodstuffs, food, beverage and / or beverage industry, in the solar energy industry or in the pharmaceutical industry, and / or can be cleaned with chemicals, in particular aggressive chemicals.
  • the device particularly satisfies the requirements of the leak tightness class IP69k.
  • the usage a snap-action disc made of metal, which is connected in a materially cohesive manner to the device housing and forms a seal between the device housing and the control element, in particular allows the use of the device in the industries listed above and the fulfillment of the requirements of the leakproofing class IP69k.
  • the user is provided by the use of a snap-a user-friendly control available.
  • FIGS. 1a and 1b show various views of a section of a device housing 6 with a control element according to a first embodiment of the invention.
  • FIG. 1a shows a plan view of a part of the device housing 6, in which an opening 2 is arranged (see FIG. 1b ).
  • the device housing 6 can be made of metal or plastic.
  • the opening 2 is covered by a trained as a snap-action disk 1 control element, the opening 2 on the outside 6.1 of the device housing 6 has a larger diameter to form a peripheral bearing edge for the snap-action disc 1.
  • the peripheral bearing edge lies in a receiving plane 3.
  • the area with a larger diameter of the opening 2 has between the receiving plane 3 and the outside 6.1 of the device housing 6, a height such that the snap disc 1 with its outside flush with the outside of the 6.1 Device housing 6 closes.
  • the snap disc 1 is circumferentially cohesively, for example, by welding or gluing, connected to the device housing 6. In this case, a welding or adhesive seam 4 is formed.
  • the snap-action disc 1 is made of metal.
  • the snap disc 1 is round, but may alternatively be formed oval, square, square or polygonal.
  • the snap disc 1 is in particular with an edge 1.4 on the support edge of the opening 2 and is integrally connected via the edge 1.4 with the device housing, whereby a seal between the device housing and the snap disk 1 is formed.
  • a decoupling region 1.3 follows, which is designed as an inclined surface. In the present case arises due to the round Training the snap disc 1 a conical area.
  • the decoupling region 1.3 rises from the receiving plane 3 to the outside, in particular starting from the receiving plane 3 in the direction of the outside 6.1 of the device housing 6.
  • the inclination of the inclined surface or the conical region is variable, in an extreme case, the decoupling region 1.3 as a cylindrical region can be trained.
  • the decoupling region 1.3 is adjoined by a flexible inner region, which has a convex dome 1.1, which is convex as seen from the outside of the device housing 6.1, and a concave shoulder 1.2 arranged concentrically around the convex dome 1.1.
  • the dome 1.1 and the convex shoulder 1.2 form the actual area of the snap disk 1.
  • the decoupling 1.3 is concentric circumferential, in particular concentric circumferentially around the concave paragraph 1.2, formed.
  • the concave paragraph 1.2 is designed such that in the direction of the actuating force 5 of the lowest point of the concave shoulder 1.2 connects to the decoupling 1.3, to avoid in this way wells in the snap-action disc 1, in which liquid could accumulate on the snap-action disc 1 ,
  • the convex dome 1.1 Upon application of an actuating force 5 on the outside of the snap-action disc 1, the convex dome 1.1 snaps into a flat to slightly concave structure and the concave portion 1.2 into a convex structure.
  • the decoupling region 1.3 is reversibly deformable and thus makes it possible to snap this inner region around despite the peripheral edge 1.4 of the snap disk 1, which is peripherally connected in a form-fitting manner to the device housing 6.
  • a switching stroke x is realized in the snap-action disc 1, through which a switching element, not shown, which in the interior of the device housing 6 is arranged below the snap disk 1, can be operated.
  • the snap disc 1 has a diameter d, wherein the ratio of diameter d to shift stroke x is about 20: 1 in order to realize low actuation forces, in particular actuation forces in the range of 6 to 12 Newtons.
  • a stop geometry can be provided in the device housing 6 within the opening 2, which, for example, merely provides a breakthrough in the region of the dome 1.1 has.
  • FIGS. 2a and 2b an alternative embodiment of the invention is shown.
  • Like reference numerals designate like parts as in the embodiment of FIGS. 1a and 1b
  • the second embodiment according to the FIGS. 2a and 2b not only one, but two snap discs 1 arranged in the device housing 6.
  • several of the snap discs 1 according to the in the FIGS. 1a and 1b Embodiment shown are arranged in a device housing 6 or merely a snap disk according to the embodiment of FIGS. 2a and 2b In a device housing 6.
  • a keyboard can be realized in the arrangement of several domes 1.
  • two control elements for a range setting can be provided for optoelectronic sensors.
  • the essential difference of the second embodiment compared to the first embodiment according to the FIGS. 1a and 1b is that the domes 1 are embossed in a metal strip 7, which is arranged on the outside 6.1 of the device housing 6.
  • the actual geometry of the dome 1.1 and the paragraph 1.2 of the domes 1 and the decoupling 1.3 corresponds to the snap-action disc 1 according to the in the FIGS. 1a and 1b illustrated embodiment.
  • the domes 1 thus need not be individually secured in the device housing 6, but it is only the entire metal strip 7 on the outside 6.1 of the device housing 6 is attached. This ensures a gap-free surface. Furthermore, in this way it is easily possible to arrange a plurality of operating elements, for example a keyboard, on the device housing 6.
  • the metal strip 7 covers the openings 2 of the device housing 6 and in particular forms a seal between the device housing 6 and the domes 1.
  • the seal is in particular with the outside of the decoupling region 1.3 of the domes 1 arranged portion of the metal strip 7 or only with the edge of Metal strip 7, formed.
  • Both the region of the metal strip 7 arranged outside the decoupling region 1.3 of the snap-action disks 1 and the edge of the metal strip 7 represent an edge 1.4 of the snap-action disk 1, which is connected in a materially bonded manner to the device housing 6.
  • the snap discs made of metal are integrally connected to the device housing.
  • the device housing is made of metal.
  • a support edge within the opening of the device housing is therefore not necessary.
  • an extended in the radial direction edge region, the one defined Edition of the snap-disk should allow, can be omitted, since the snap-action disc is integrally connected to the device housing over the edge.
  • a one-piece connection between the snap-action disc 1 and the device housing allows a gap-free and weld-free surface.
  • the actual geometry of the dome and the paragraph of the snap-action disc and the decoupling corresponds to the Schnapplacenl according to the in the FIGS. 1a and 1b illustrated embodiment.
  • the control element can be used in device housings of a wide variety of devices, for example measuring or control devices, in particular electrical or electronic sensors, in particular optoelectronic sensors such as light barriers or light grids.
  • the arrangement of the domes 1 in the device housing 6 according to the two described embodiments allows use of the device with such a control in a humid environment, especially in industries where high demands on tightness, temperature resistance, thermal shock resistance, mechanical abrasion resistance, resistance to pressure against external mechanical effects , Vapor and gas permeability, low moisture absorption and / or hygiene requirements are present, especially in the food industry, the food, beverage and / or beverage industry, the solar energy industry or the pharmaceutical industry, in which in particular the equipment used with chemicals, especially aggressive chemicals be cleaned, since the described embodiments by the use of a snap disc made of metal a robust design of the control element while good A seal between the control element and the device housing.
  • the use allows the control elements according to the invention fulfill the requirements of the leak tightness class IP69k.

Landscapes

  • Casings For Electric Apparatus (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
  • Burglar Alarm Systems (AREA)
  • Air Bags (AREA)
  • Electrotherapy Devices (AREA)

Claims (15)

  1. Appareil équipé d'au moins un élément de commande logé dans le boîtier (6) de l'appareil, l'élément de commande étant en forme de disque à déclic (1) en métal,
    caractérisé en ce que
    le disque à déclic (1) comporte un bord (1.4) relié au boîtier (6) de l'appareil par une liaison par la matière et il forme un joint entre le boîtier (6) de l'appareil et le disque à déclic (1),
    une zone du disque à déclic (1) adjacent au bord (1.4) étant réalisée sous la forme d'une zone de découplage (1.3) déformable de manière réversible.
  2. Appareil selon la revendication 1,
    caractérisé en ce que
    la zone de découplage (1.3) est réalisée sous la forme d'une surface inclinée.
  3. Appareil selon l'une des revendications précédentes,
    caractérisé en ce que
    la zone de découplage (1.3) est périphérique, concentrique.
  4. Appareil selon l'une des revendications précédentes,
    caractérisé en ce que
    le disque à déclic (1) est de forme ronde et la zone de découplage (1.3) est une surface conique.
  5. Appareil selon l'une des revendications précédentes,
    caractérisé en ce que
    la zone de découplage (1.3) est cylindrique.
  6. Appareil selon l'une des revendications précédentes,
    caractérisé en ce que
    le disque à déclic (1) a un diamètre (d) et une course de commutation (x), le rapport entre le diamètre (d) et la course de commutation (x) étant de l'ordre de 20/1.
  7. Appareil selon l'une des revendications précédentes,
    caractérisé en ce que
    le disque à déclic (1) a une coupelle convexe (1.1) et un épaulement concave (1.2) concentrique à la coupelle convexe (1.1), l'épaulement se poursuivant concentriquement par la zone de découplage (1.3).
  8. Appareil selon l'une des revendications précédentes,
    caractérisé en ce que
    le disque à déclic (1) est relié en une seule pièce avec le boîtier (6) de l'appareil.
  9. Appareil selon l'une des revendications 1 à 7,
    caractérisé en ce que
    le disque à déclic (1) est relié au boîtier (6) de l'appareil par soudage ou collage.
  10. Appareil selon l'une des revendications 1 à 7,
    caractérisé en ce que
    le disque à déclic (1) est imprimé dans un ruban métallique relié au boitier (6) de l'appareil.
  11. Appareil selon l'une des revendications précédentes,
    caractérisé en ce que
    le boîtier (6) de l'appareil est fabriqué en métal ou en matière plastique.
  12. Appareil selon l'une des revendications précédentes,
    caractérisé en ce que
    l'appareil est un appareil de mesure ou de régulation notamment un capteur électrique ou électronique.
  13. Appareil selon l'une des revendications précédentes,
    caractérisé en ce que
    l'appareil est un capteur optoélectronique notamment une barrière lumineuse ou une grille lumineuse.
  14. Appareil selon l'une des revendications précédentes,
    caractérisé en ce que
    l'appareil est conçu pour être utilisé dans un environnement humide.
  15. Appareil selon l'une des revendications précédentes,
    caractérisé en ce que
    l'appareil est prévu pour être utilisé dans l'industrie et les produits alimentaires, des produits de nutrition, des produits de consommation et/ou de l'industrie des boissons, dans l'industrie de l'énergie solaire et/ou dans l'industrie pharmaceutique et/ou l'appareil se nettoie avec des produits chimiques notamment avec des produits chimiques agressifs.
EP09014951A 2009-01-14 2009-12-02 Appareil doté d'au moins un élément de commande Active EP2209131B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009004975A DE102009004975B3 (de) 2009-01-14 2009-01-14 Gerät mit wenigstens einem Bedienelement

Publications (2)

Publication Number Publication Date
EP2209131A1 EP2209131A1 (fr) 2010-07-21
EP2209131B1 true EP2209131B1 (fr) 2011-06-08

Family

ID=41335228

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09014951A Active EP2209131B1 (fr) 2009-01-14 2009-12-02 Appareil doté d'au moins un élément de commande

Country Status (5)

Country Link
US (1) US8604375B2 (fr)
EP (1) EP2209131B1 (fr)
AT (1) ATE512449T1 (fr)
DE (1) DE102009004975B3 (fr)
DK (1) DK2209131T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102339683A (zh) * 2010-07-23 2012-02-01 深圳富泰宏精密工业有限公司 多功能按键结构
JP5913873B2 (ja) * 2011-09-06 2016-04-27 オムロン株式会社 トリガスイッチ
JP1487382S (fr) * 2013-03-26 2016-12-19
DE102015015114A1 (de) * 2015-11-21 2017-05-24 Götz Thomas Saugnapf mit einer Schnappscheibe oder Federstahlscheibe
DE102016105201B4 (de) * 2016-03-21 2022-11-17 Sick Ag Verfahren zur Herstellung eines Sensorgehäuses
DE102016214530A1 (de) * 2016-08-05 2018-02-08 Richard Wolf Gmbh Medizinisches Instrument
US11788680B2 (en) * 2020-04-28 2023-10-17 Keith Hippely Device for attaching items to surface

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB221504A (en) * 1923-09-05 1925-05-14 Jean Louis Henri Guidet Improvements in thermal or pressure operated electric switches
DE4139554A1 (de) * 1991-10-14 1993-04-15 Fela Mikrotechnik Ag Elektrischer tastschalter
JP2002270062A (ja) * 2001-03-06 2002-09-20 Citizen Electronics Co Ltd 押圧スイッチ
DE102004004136B4 (de) * 2004-01-28 2006-04-20 Braun Gmbh Elektrisches Kleingerät mit einer Schalteinrichtung
JP4445837B2 (ja) * 2004-04-21 2010-04-07 ホシデン株式会社 プッシュオンスイッチ
US20080164133A1 (en) * 2004-06-15 2008-07-10 Japan Aviation Electronice Industry Limited Dome-Shaped Contact and Multi-Step Operation Electrical Switch Incorporating the Same
DE102006010811B4 (de) * 2006-03-07 2018-03-01 Huf Hülsbeck & Fürst Gmbh & Co. Kg Schaltelement und Betätigungsvorrichtung damit sowie Türgriff mit dieser Betätigungsvorrichtung
US7378609B1 (en) * 2006-05-10 2008-05-27 John Fedorjaka Metal dome switch assembly with enhanced snap ratio
US7557320B1 (en) * 2008-07-30 2009-07-07 Apple Inc. Surface-mount dome switch

Also Published As

Publication number Publication date
US20100175975A1 (en) 2010-07-15
DK2209131T3 (da) 2011-09-05
ATE512449T1 (de) 2011-06-15
US8604375B2 (en) 2013-12-10
DE102009004975B3 (de) 2009-12-24
EP2209131A1 (fr) 2010-07-21

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