EP3869529A1 - Electrical switching element - Google Patents
Electrical switching element Download PDFInfo
- Publication number
- EP3869529A1 EP3869529A1 EP21151127.4A EP21151127A EP3869529A1 EP 3869529 A1 EP3869529 A1 EP 3869529A1 EP 21151127 A EP21151127 A EP 21151127A EP 3869529 A1 EP3869529 A1 EP 3869529A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- switching element
- switching
- element according
- movement
- 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.)
- Pending
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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
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
- H01H13/18—Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
- H01H13/183—Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
-
- 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
- H01H13/063—Casings hermetically closed by a diaphragm through which passes an actuating member
-
- 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
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
- H01H13/18—Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
-
- 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
- H01H3/16—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
- H01H9/041—Casings hermetically closed by a diaphragm through which passes an actuating member
Definitions
- the invention relates to an electrical switching element.
- the switching element has a housing from which an actuating member for separating contacts of electrical circuits protrudes. Such a switching element can be used in safety circuits of automated gates or doors.
- Electrical switching elements are well known in all areas of technology in various applications as microswitches. Such switching elements come, for example, in electrical safety circuits, in switching devices as in the DE 20 2011 000 948 U1 described, for use.
- the DE 100 19 927 C1 relates to a safety switch with a housing in which a contact carrier is guided in its longitudinal direction against a spring preload with a displaceable contact bridge which can be brought into engagement with contact pieces fixed to the housing and with a rotatable actuating mechanism having an actuating surface for moving the contact carrier in its longitudinal direction, wherein the contact carrier is spring-biased towards the actuator.
- the contact carrier carries a pressure piece adjacent to the actuator, which is arranged displaceably in a slide sleeve spring-preloaded against the actuator, the slide sleeve having a recess that accommodates a head part of the pressure piece and the head part has an opening into which a crank connected to the actuator is used for forcing Moving the contact carrier protrudes in the direction of the pressure piece.
- a limit switch accommodating housing with a head attached to one end of the housing, a rotating shaft rotatably supported by the head, an actuating lever attached at its foot end to the rotating shaft, a cam means provided on the rotating shaft for converting a rotary movement into a linear movement, a Return spring for applying a return force to the lever via the cam means and the rotating shaft for returning the operating lever to a free position.
- Piston means are also provided for switching the switching means arranged in the limit switch by means of axially driven cam means.
- the switching means have two basic switching mechanisms, each of which has a push-in actuating rod.
- drive lever means are provided which have two drive levers, one of which presses on the one operating rod when the operating lever with the cam rotates clockwise from its free position, and the other of the drive levers on one presses the other operating rod when the operating lever with the Cam rotates counterclockwise from its free position.
- the cam means are provided with return springs. When the operating lever is about to be moved back beyond its free neutral position, so as to prevent rotation of the operating lever back beyond its free position.
- a push button switch is that DE 698 27 512 T2 can be seen, which is switched to an on or off state as a function of the increasing depression of a push button.
- This comprises a housing with bearings for the push button, a first contact which is arranged in the housing and a second contact which is arranged in the housing opposite the first contact, the push button switch in connection with the depression of the push button from a first off state, in which the first and second contacts are out of contact, switched to an on-state in which the first and second contacts are in contact with one another, and then switched to a second off-state in which the first and the second contact are again out of contact, wherein the first contact is pressed against the second contact.
- a positive disconnection device is provided in order to forcibly move the first contact away from the second contact with the force exerted directly on the push button when the switch is switched to the second off state.
- the object of the invention is to create an electrical switching element which has only a short response time or reaction time when it is actuated and which is suitable for use in safety circuits of automated gates or doors.
- an actuating member in the form of a plunger protrudes from a housing of the electrical switching element.
- This plunger is directly connected to a translationally movable movement element present within the electrical switching element.
- the moving element is guided within the housing and moves between the ends of the electrical conductors of a circuit to be connected via a switching bridge.
- the movement element is constructed in such a way that the switching bridge in it is spring-loaded.
- the axial displacement of the actuating element also prevents the contacts from fluttering, in particular because there is a direct form fit of all switching parts.
- Such a structure is particularly important for electrical switching elements, since in safety systems even a single separation of the contacts leads to a standstill of entire systems, such as sectional doors.
- the housing of the electrical switching element is protected against the ingress of water and is not subject to changes in the event of temperature fluctuations.
- the movement element is subjected to pressure in the rest position by a force element, such as a compression spring or another component with the same angle.
- the electrical conductors implemented inside the housing are led to the outside of the housing and connected there by a connection to electrical lines present outside the housing.
- an electrical switching element 1 is shown in a closed form with an upper part 4 and a lower part 5, which are connected to one another.
- the upper part 4 and the lower part 5 are penetrated by a fastening bore 6 and an elongated fastening hole 7, thereby making fastening easier.
- holders 8 and projections 11 for fixing the position, for example within a device.
- a connection area 37 with electrical lines 2 is shown on the right part of the case, according to Figure 1 .
- an actuating member 3 protruding from the housing, in connection with a surrounding protective element 10, is shown.
- the upper part 4 is mechanically fixed to the lower part 5 by fasteners 9.
- the electrical switching element is in the Figure 2 , with the omission of the upper part 4.
- the actuating element 3 is connected within the housing directly to a movement element 15 which can be changed in position within the housing in a translational design.
- a possible embodiment of such an actuating element 15 can Figure 4 can be removed.
- a guide element 27 is connected directly to the actuating element 15 and is guided outside the housing within openings 33, which are present on one side in the upper part 4 and the lower part 5.
- the adjoining area of the movement element 15 has an either square or rectangular cross section.
- guides 24 are formed on each of the corner sides, which correspond to guide tracks 31, 32 within the upper part 4 and the lower part 5.
- the actuating element 15 is provided with an opening 29, in the lateral areas of which guide surfaces 23 are formed. At one end of the opening 29, a projection 28 is formed.
- the lower part of the movement element 15 has a centering 30 for a force element 14 which fixes the movement element 15 in its starting position.
- a switching bridge 12 is arranged within the opening 29 in such a way that it can be moved translationally with lateral projections 16 in the region of the guide surfaces 23.
- a protective spring 13 presses against the switching bridge 12, the other end around the projection 28. This protective spring 13 prevents the switching bridge 12 with its contact surfaces 21 and 22 from bouncing or fluttering of the switching bridge 12 in connection with the stationary contacts 19, 20 of the lines 17, 18 during a switching process.
- the protective spring 13 has the task of ensuring the safe contact of the contact surfaces 21 and 20 with the contacts 19 and 22 in the rest position. At the same time, the entire movement element 15 is pressed by the force element 14 into its starting position, namely the contact closure between the contact surfaces 21, 20 and the contacts 19, 20. The force element 14 is supported against the housing at the other end.
- the conductors 17 and 18 are laid inside the housing in such a way that there is effective galvanic separation.
- the conductors 17, 18 are supported within the housing on supports 36 and led out of the housing via cutouts 34, 35 so that their connection lugs 25, 26 can be connected to electrical lines 2 in the connection area 37.
- the guide tracks 31, 32 can be removed in the extension of the movement element 15.
- the guides 24 interact with the guide tracks 31, 32. Due to this direct guidance of the movement element 15 within the upper part 4 and the lower part 5, in connection with the direct execution of the actuating member 3, angular errors cannot occur when the electrical circuit is triggered.
- the design of the moving element 15 has only a small mass and thus counteracts mechanical vibrations.
Abstract
Die Erfindung betrifft ein elektrisches Schaltelement (1) für Sicherheitsschaltkreise von automatisierten Toren oder Türen mit einem geschlossenen Gehäuse, das aus einem Oberteil (4) und einem Unterteil (5) besteht, sowie einem aus dem Gehäuse seitlich vortretenden direkten Betätigungsorgan (3), wobei das Betätigungsorgan (3) mit einem innerhalb des Gehäuses translatorisch verschiebbaren, aus einem Isoliermaterial bestehenden Bewegungselement (15) fest verbunden ist, wobei das Bewegungselement (15) beweglich von einer durch eine Schutzfeder (13) belasteten Schaltbrücke (12) durchdrungen wird, deren Kontaktflächen (21, 22) in der Ruhestellung des Bewegungselementes (15) mit Kontakten (19, 20) von elektrischen Leitern (17, 18) verbunden sind, wobei das Bewegungselement (15) zwischen den Enden der Leiter (17, 18) ausgebildet ist, und dass das Bewegungselement (15) endseits durch ein Kraftelement (14) belastet ist.The invention relates to an electrical switching element (1) for safety circuits of automated gates or doors with a closed housing, which consists of an upper part (4) and a lower part (5), as well as a direct actuator (3) protruding laterally from the housing, whereby the actuating member (3) is firmly connected to a movement element (15) made of an insulating material and which can be moved translationally within the housing, the movement element (15) being penetrated movably by a switching bridge (12) loaded by a protective spring (13), the contact surfaces of which (21, 22) are connected to contacts (19, 20) of electrical conductors (17, 18) in the rest position of the moving element (15), the moving element (15) being formed between the ends of the conductors (17, 18), and that the movement element (15) is loaded at the end by a force element (14).
Description
Die Erfindung betrifft ein elektrisches Schaltelement. Das Schaltelement weist ein Gehäuse auf, aus dem ein Betätigungsorgan zur Trennung von Kontakten elektrischer Kreisläufe herausragt. Ein derartiges Schaltelement kann in Sicherheitsschaltkreisen von automatisierten Toren oder Türen eingesetzt werden.The invention relates to an electrical switching element. The switching element has a housing from which an actuating member for separating contacts of electrical circuits protrudes. Such a switching element can be used in safety circuits of automated gates or doors.
Elektrische Schaltelemente sind in allen Bereichen der Technik in unterschiedlichen Anwendungen als Mikroschalter hinreichend bekannt. Derartige Schaltelemente kommen, beispielsweise in elektrischen Sicherheitskreisen, bei Schaltorganen wie in der
Die
Mit der
Ein Druckknopfschalter ist der
Eine Schutzeinrichtung für eine Maschine und Verwendung eines Gebäudeschiebetürantriebes offenbart die
Die Aufgabe der Erfindung besteht darin ein elektrisches Schaltelement zu schaffen, das nur eine kurze Ansprechzeit, bzw. Reaktionszeit, bei einer Betätigung aufweist und geeignet ist in Sicherheitsschaltkreisen von automatisierten Toren oder Türen eingesetzt zu werden.The object of the invention is to create an electrical switching element which has only a short response time or reaction time when it is actuated and which is suitable for use in safety circuits of automated gates or doors.
Die Aufgabe der Erfindung wird durch die Merkmale des Anspruches 1 gelöst. Die sich an den Anspruch 1 anschließenden Unteransprüche geben dabei eine weitere Ausgestaltung des erfindungsgemäßen Gedankens wieder.The object of the invention is achieved by the features of claim 1. The subclaims that follow claim 1 reproduce a further embodiment of the inventive concept.
Um elektrische Schaltelemente in elektrischen Schaltkreisen einsetzen zu können, sollten diese bei einer Betätigung eine schnelle Ansprech- oder Reaktionszeit aufweisen. Dies ist insbesondere bei Verwendungen in Sicherheitsanordnungen von großer Bedeutung. Eine kurze Ansprechzeit kann dabei durch einen direkten Stoßantrieb realisiert werden. Dabei ragt beispielsweise aus einem Gehäuse des elektrischen Schaltelementes ein Betätigungsorgan in Form eines Stößels heraus. Dieser Stößel ist direkt mit einem innerhalb des elektrischen Schaltelementes vorhandenen translatorisch bewegbaren Bewegungselement verbunden. Gleichzeitig wird das Bewegungselement innerhalb des Gehäuses geführt und bewegt sich zwischen den Enden der über eine Schaltbrücke zu verbindenden elektrischen Leiter eines Stromkreises. Das Bewegungselement ist dabei so aufgebaut, dass in ihm die Schaltbrücke federbelastet ist. Durch einen solchen direkten Stoßantrieb in seitlicher Anordnung ist das elektrische Schaltelement gegen das Prellen der Kontaktflächen durch seine geringe Masse und durch das Federelement gesichert. Das Bewegungselement kann dabei mit der Schaltbrücke bei einer Betätigung nicht in mechanische Schwingungen geraten. Dadurch entsteht eine konstante Kontaktgeometrie, die insbesondere durch eine direkte Führung des Bewegungselementes innerhalb des Gehäuses erzielt wird. Bei einer solchen Konstruktion sind für die Betätigung der Kontaktbrücke keine Winkelfehler zu erwarten, die eine sichere Trennung des Stromkreises beeinflussen könnten. Die Kontaktflächen haben nur eine punktförmige Berührung mit den Kontaktflächen der elektrischen Leiter, da sie aus ebenen Kontaktflächen bestehen. Dieses wirkt sich auch in einer Verkürzung von Prellzeiten aus. Ebenfalls wird durch die achsiale Verschiebung des Betätigungsorganes ein Flattern der Kontakte insbesondere auch dadurch unterbunden, dass ein direkter Formschluss aller Schaltteile vorhanden ist. Ein solcher Aufbau ist bei elektrischen Schaltelementen besonders wichtig, da es in Sicherheitsanlagen bereits bei einer einmaligen Trennung der Kontakte zu einem Stillstand gesamten Anlagen, wie z.B. Sektionaltoren, kommt.In order to be able to use electrical switching elements in electrical circuits, they should have a fast response or reaction time when actuated. This is of great importance in particular when used in safety arrangements. A short response time can be achieved with a direct push drive. In this case, for example, an actuating member in the form of a plunger protrudes from a housing of the electrical switching element. This plunger is directly connected to a translationally movable movement element present within the electrical switching element. At the same time, the moving element is guided within the housing and moves between the ends of the electrical conductors of a circuit to be connected via a switching bridge. The movement element is constructed in such a way that the switching bridge in it is spring-loaded. By such a Direct push drive in a lateral arrangement, the electrical switching element is secured against bouncing of the contact surfaces due to its low mass and the spring element. The moving element with the switching bridge cannot get into mechanical vibrations when it is actuated. This creates a constant contact geometry, which is achieved in particular by direct guidance of the movement element within the housing. With such a construction, no angle errors are to be expected for the actuation of the contact bridge, which could influence a reliable separation of the circuit. The contact surfaces only have point-like contact with the contact surfaces of the electrical conductors, since they consist of flat contact surfaces. This also has the effect of shortening bounce times. The axial displacement of the actuating element also prevents the contacts from fluttering, in particular because there is a direct form fit of all switching parts. Such a structure is particularly important for electrical switching elements, since in safety systems even a single separation of the contacts leads to a standstill of entire systems, such as sectional doors.
Das Gehäuse des elektrischen Schaltelementes ist dabei gegen Wassereintritt geschützt und unterliegt keinen Veränderungen bei Temperaturschwankungen.The housing of the electrical switching element is protected against the ingress of water and is not subject to changes in the event of temperature fluctuations.
Damit das aus einem Isoliermaterial bestehende Betätigungselement in der Grundstellung mit der Schaltbrücke auch den ständigen Kontakt mit den elektrischen Leitern aufrechterhalten kann, wird das Bewegungselement durch ein Kraftelement, wie beispielsweise eine Druckfeder oder ein anderes gleichwinkendes Bauteil, in der Ruhestellung mit Druck belastet.So that the actuating element, which consists of an insulating material, can also maintain constant contact with the electrical conductors in the basic position with the switching bridge, the movement element is subjected to pressure in the rest position by a force element, such as a compression spring or another component with the same angle.
Die innerhalb des Gehäuses ausgeführten elektrischen Leiter werden nach außerhalb des Gehäuses geführt und dort durch einen Anschluss mit außerhalb des Gehäuses vorhandenen elektrischen Leitungen verbunden.The electrical conductors implemented inside the housing are led to the outside of the housing and connected there by a connection to electrical lines present outside the housing.
Die Erfindung wird nachfolgend anhand eines möglichen Ausführungsbeispieles näher erläutert, es zeigt:
- Figur 1
- Ein elektrisches Schaltelement mit geschlossenem Gehäuse;
Figur 2- das elektrische Schaltelement nach
Figur 1 , mit entferntem Oberteil des Gehäuses; Figur 3- die innerhalb des Gehäuses angeordneten elektrischen Leiter, sowie einem dazwischen angeordneten Bewegungselement und einer Kontaktbrücke;
Figur 4- ein Betätigungselement in einer perspektivischen Darstellung;
Figur 5- eine Draufsicht auf ein Unterteil des Gehäuses.
- Figure 1
- An electrical switching element with a closed housing;
- Figure 2
- the electrical switching element after
Figure 1 , with the upper part of the housing removed; - Figure 3
- the electrical conductors arranged within the housing, as well as a movement element arranged therebetween and a contact bridge;
- Figure 4
- an actuating element in a perspective view;
- Figure 5
- a plan view of a lower part of the housing.
In der
Das elektrische Schaltelement wird in der
Innerhalb des Durchbruches 29 ist eine Schaltbrücke 12 so angeordnet, dass diese mit seitlichen Vorsprüngen 16 im Bereich der Führungsflächen 23 translatorisch bewegbar ist. Gegen die Schaltbrücke 12 drückt eine Schutzfeder 13, die sich andererends um den Vorsprung 28 legt. Durch diese Schutzfeder 13 wird die Schaltbrücke 12 mit ihren Kontaktflächen 21 und 22 daran gehindert, dass es bei einem Schaltvorgang hier zu einem Prellen oder Flattern der Schaltbrücke 12 in Verbindung mit den ortsfesten Kontakten 19, 20 der Leitungen 17, 18 kommt.A switching
Dieser funktionale Aufbau mit der achsialen Beweglichkeit durch das Betätigungsorgan 3, kann insbesondere den
Die Leiter 17 und 18 sind innerhalb des Gehäuses so verlegt, dass eine wirksame galvanische Trennung vorhanden ist. Dabei werden die Leiter 17, 18 innerhalb des Gehäuses auf Auflagern 36 abgestützt und über Ausschnitte 34, 35 aus dem Gehäuse herausgeführt, so dass ihre Anschlussfahnen 25, 26 in dem Anschlussbereich 37 mit elektrischen Leitungen 2 verbunden werden können.The
Der
- 11
- Elektrisches SchaltelementElectrical switching element
- 22
- elektrische Leitungenelectric lines
- 33
- BetätigungsorganActuator
- 44th
- OberteilTop
- 55
- UnterteilLower part
- 66th
- BefestigungsbohrungMounting hole
- 77th
- BefestigungslanglochMounting slot
- 88th
- Halterungbracket
- 99
- VerschlussClasp
- 1010
- SchutzelementProtective element
- 1111
- VorsprüngeLedges
- 1212th
- SchaltbrückeSwitching bridge
- 1313th
- SchutzfederProtective spring
- 1414th
- KraftelementPower element
- 1515th
- BewegungselementMovement element
- 1616
- VorsprüngeLedges
- 1717th
- Leiterladder
- 1818th
- Leiterladder
- 1919th
- KontaktContact
- 2020th
- KontaktContact
- 2121
- KontaktflächenContact surfaces
- 2222nd
- KontaktflächenContact surfaces
- 2323
- FührungsflächenGuide surfaces
- 2424
- Führungenguides
- 2525th
- AnschlussfahneConnection lug
- 2626th
- AnschlussfahneConnection lug
- 2727
- FührungsorganManagement body
- 2828
- Vorsprunghead Start
- 2929
- Durchbruchbreakthrough
- 3030th
- Zentrierungcentering
- 3131
- FührungsbahnenGuideways
- 3232
- FührungsbahnGuideway
- 3333
- Durchbruchbreakthrough
- 3434
- AusschnittCutout
- 3535
- AusschnittCutout
- 3636
- AuflagerIn stock
- 3737
- AnschlussbereichConnection area
Claims (12)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020104577.8A DE102020104577B3 (en) | 2020-02-21 | 2020-02-21 | Electrical switching element |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3869529A1 true EP3869529A1 (en) | 2021-08-25 |
Family
ID=74093884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21151127.4A Pending EP3869529A1 (en) | 2020-02-21 | 2021-01-12 | Electrical switching element |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3869529A1 (en) |
DE (1) | DE102020104577B3 (en) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2899511A (en) * | 1957-07-23 | 1959-08-11 | fraser | |
US4401867A (en) * | 1980-10-24 | 1983-08-30 | Starkstrom Gummersbach Gmbh | Switching device with forced opening of the contacts |
JPH0652748A (en) * | 1992-07-31 | 1994-02-25 | Idec Izumi Corp | Switch device for safety |
DE69027696T2 (en) | 1989-03-28 | 1997-03-06 | Omron Tateisi Electronics Co | Limit switch |
DE19923528A1 (en) | 1998-05-21 | 1999-11-25 | Geze Gmbh | Automatic protective doors for machines and plants |
DE10019927C1 (en) | 2000-04-20 | 2001-10-31 | Schmersal K A Gmbh & Co | Electric safety switch e.g. end switch, has rotary switch operator provided with crank for sliding movement of contact carrier supporting contact bridge |
JP2002367470A (en) * | 2001-06-08 | 2002-12-20 | Omron Corp | Switch |
DE10244372C1 (en) * | 2002-09-24 | 2003-11-27 | Moeller Gmbh | Position switch has sliding contact carrier provided with windows fitted with contact carriers in variable configuration |
DE69827512T2 (en) | 1997-04-28 | 2005-12-01 | Idec Izumi Corp. | PUSHBUTTON, DEVICE FOR OPERATION AND KEYBOARD WITH THIS SWITCH |
DE202011000948U1 (en) | 2011-04-20 | 2011-06-28 | Alpha Deuren International Bv | safety device |
-
2020
- 2020-02-21 DE DE102020104577.8A patent/DE102020104577B3/en active Active
-
2021
- 2021-01-12 EP EP21151127.4A patent/EP3869529A1/en active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2899511A (en) * | 1957-07-23 | 1959-08-11 | fraser | |
US4401867A (en) * | 1980-10-24 | 1983-08-30 | Starkstrom Gummersbach Gmbh | Switching device with forced opening of the contacts |
DE69027696T2 (en) | 1989-03-28 | 1997-03-06 | Omron Tateisi Electronics Co | Limit switch |
JPH0652748A (en) * | 1992-07-31 | 1994-02-25 | Idec Izumi Corp | Switch device for safety |
DE69827512T2 (en) | 1997-04-28 | 2005-12-01 | Idec Izumi Corp. | PUSHBUTTON, DEVICE FOR OPERATION AND KEYBOARD WITH THIS SWITCH |
DE19923528A1 (en) | 1998-05-21 | 1999-11-25 | Geze Gmbh | Automatic protective doors for machines and plants |
DE10019927C1 (en) | 2000-04-20 | 2001-10-31 | Schmersal K A Gmbh & Co | Electric safety switch e.g. end switch, has rotary switch operator provided with crank for sliding movement of contact carrier supporting contact bridge |
JP2002367470A (en) * | 2001-06-08 | 2002-12-20 | Omron Corp | Switch |
DE10244372C1 (en) * | 2002-09-24 | 2003-11-27 | Moeller Gmbh | Position switch has sliding contact carrier provided with windows fitted with contact carriers in variable configuration |
DE202011000948U1 (en) | 2011-04-20 | 2011-06-28 | Alpha Deuren International Bv | safety device |
Also Published As
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DE102020104577B3 (en) | 2021-01-21 |
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