EP1526239B1 - Magnetic security closure for a mobile protection device - Google Patents

Magnetic security closure for a mobile protection device Download PDF

Info

Publication number
EP1526239B1
EP1526239B1 EP20040024134 EP04024134A EP1526239B1 EP 1526239 B1 EP1526239 B1 EP 1526239B1 EP 20040024134 EP20040024134 EP 20040024134 EP 04024134 A EP04024134 A EP 04024134A EP 1526239 B1 EP1526239 B1 EP 1526239B1
Authority
EP
European Patent Office
Prior art keywords
protection device
housing
closure according
sensor
magnet
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.)
Expired - Lifetime
Application number
EP20040024134
Other languages
German (de)
French (fr)
Other versions
EP1526239A1 (en
Inventor
Yasar Cevik
Guntram Fust
Joachim Haupt
Uwe Wiemer
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.)
KA Schmersal Holding GmbH and Co KG
Original Assignee
KA Schmersal Holding GmbH and Co KG
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 KA Schmersal Holding GmbH and Co KG filed Critical KA Schmersal Holding GmbH and Co KG
Publication of EP1526239A1 publication Critical patent/EP1526239A1/en
Application granted granted Critical
Publication of EP1526239B1 publication Critical patent/EP1526239B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
    • E05C19/16—Devices holding the wing by magnetic or electromagnetic attraction
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/0025—Devices for forcing the wing firmly against its seat or to initiate the opening of the wing
    • E05B17/0033—Devices for forcing the wing firmly against its seat or to initiate the opening of the wing for opening only
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00—Closure fasteners
    • Y10S292/71—Refrigerator latches
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/11—Magnetic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/57—Operators with knobs or handles

Definitions

  • the invention relates to a magnetic security closure for a movable protective device according to the preamble of claim 1.
  • the object of the invention is to provide a magnetic security closure for a movable protective device according to the preamble of claim 1, wherein its functionality is not affected by a distortion of the protective device.
  • a sensor responsible for detecting the closed and opened condition of the guard in particular a safety sensor, is positioned in the immediate vicinity of the guard locking means, i. integrated into the locking device.
  • delays of the protective devices can not adversely affect.
  • a frame 1 shown here by way of example from a box-shaped profile, a fixed part in the form of a fencing, a housing or the like. provided, which receives a pivotable protective device 2 in the form of a door or flap, which is articulated on the side of the frame 1, not shown about hinges.
  • a housing 3 On the protective device 2, a housing 3 is mounted, which carries a handle 4 for opening and closing the protective device 2, which is pivotable about an axis 5 relative to the housing 3.
  • a sensor housing 6 is mounted on the frame 1, which receives a sensor 7, which serves to determine the closed or opened state of the protective device 2.
  • the sensor 7 is actuated via a triggering device 8, which is received by the mounted on the protective device 2 housing 3, respectively.
  • the triggering device 8 is the sensor 7 opposite.
  • the sensor 7 may be an electronic sensor which cooperates with a TAG as the triggering device 8, but it may also consist of one or more reed contacts which can be triggered by magnets as the triggering device 8. But it can also be the corresponding contactless proximity switch, photocells or the like. or act around electromechanical sensors. Thus, for example, safety sensors can be used, as described in DE 100 43 237 C1 or DE 103 07 044 A1.
  • the housing 3 further has a magnet arrangement 9 with at least one holding magnet 10, while the sensor housing 6 is provided correspondingly with opposite pole plates 11 for the holding magnets 10.
  • the holding magnet 10 is located and the associated pole plate 11 opposite, so that an intended holding force for locking the protective device 2 is supplied.
  • - Holding magnet 10 and pole plate 11 can of course be reversed housed in the sensor housing 6 and housing 3. Instead of a pole piece 11, a magnet could also be used.
  • the handle 4 is as a two-armed lever mounted on the housing 3, wherein an arm 12 of the lever faces the sensor housing 6 and separates with its free end when pivoting to open the protective device 2, the holding magnets 10 of the magnet assembly 9 of the associated pole plates 11.
  • the handle 4 can be grasped at its other arm 13 and pivoted outwards relative to the protective device 2, cf. Fig. 2, whereby the free end of the arm 12 adjacent to the pole piece 11 or even with the latter itself engages and lifts the holding magnet 10 of its pole plate 11 against the holding force acting therebetween during further pivoting, so that the protection device is opened , see. Fig. 3.
  • the force required for opening can be chosen to be much smaller than the clamping force of the magnetic device 9.
  • a stop 14 is disposed adjacent to the magnet assembly 9, wherein at least one pole piece 11 is movable in the direction of the magnet assembly 9 according to a predetermined game at the same time.
  • the latter leads to a secure contact between the holding magnet 10 and the pole plate 11 in the closed state of the protective device 2, while the stop 14 prevents when closing, that the energy of the closing and an associated impact is transmitted to the magnetic device 9.
  • the pole plates 11 which are movable in this way also allow a certain oblique position of the protective device 2.
  • the housing 3 and the sensor housing 6 are each formed angularly, so that they overlap correspondingly in the region of the magnet assembly 9 in the closed state of the protective device 2, such as a revolving door or flap.
  • the handle 4 is mounted with its axis 5 in its extension 15 extending over the sensor housing 6.
  • the handle 4 engages around the housing 3 fork-shaped (or vice versa) and is provided at the end of his arm 13 with an engagement recess 16.
  • the extension 15 is located on both sides in each case a holding magnet 10 which protrudes on the pole plates 11 facing side of the extension 15, and adjacent to the end face of the extension 15, the triggering device 8 in the form of a holder 17 with two tripping magnets 18 for reed contacts Sensor 7 in the sensor housing 6 (the latter in Fig. 4 not shown).
  • the sensor housing 6 receives the pole plates 11 with lateral and vertical clearance below housing openings 19.
  • the sensor housing 6 also accommodates a circuit board 20.
  • FIG. 5 is one for a protective device 2 in the form of a sliding door or sliding flap.
  • the housing 3 and the sensor housing 6 are cuboid, wherein the magnet assembly 9 is mounted such that the applied magnetic force acts perpendicular to the direction of the protective device 2.
  • the holding magnet 10 is separated from its pole plate 11 and the protective device can be pushed open.
  • the lever may also be expedient for the lever to be pivotable in the direction of opening.
  • the axis 5 only to be offset accordingly upwards.
  • the housing 3 and the sensor housing 6 are provided with mutually facing inclined surfaces 21, 22, so that the housing 3, the sensor housing 6 on the frame 1 partially overlaps, wherein between the inclined surfaces 21, 22, a gap which is characterized by the fact that adjacent to the inclined surfaces 21, 22 of the at least one holding magnet 10 and the associated pole plate 11 are respectively arranged, can be bridged by the magnetic device 9.
  • the sensor 7 and the triggering device 8 are adjacent to the inclined surfaces 21, 22.
  • the inclined surfaces 21, 22 have an angle of about 30 to 60 °, in particular about 45 °, to the surface of the protective device 2, so that these by pivoting the Handle 4 - regardless of whether it is a pivotable or a sliding guard 2 - can be opened against the magnetic clamping force.
  • the holding magnets 9 are not mounted in or on the housing 3, but on the lever itself compared to the embodiment of Fig. 7. By pivoting the lever, the holding magnets 9 are separated from their pole plates 10 so far that the remaining residual magnetic force acting therebetween, readily to open by pivoting a corresponding protective device 2, Fig. 10, or by moving a corresponding protective device 2, Fig. 11, can be overcome.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Lock And Its Accessories (AREA)

Description

Die Erfindung betrifft einen magnetischen Sicherheitsverschluß für eine bewegliche Schutzeinrichtung nach dem Oberbegriff des Anspruchs 1.The invention relates to a magnetic security closure for a movable protective device according to the preamble of claim 1.

Bei Zugangsschutzeinrichtungen für einen begehbaren, verschließbaren Raumbereich einer maschinellen Anlage (hierunter sind beispielsweise Maschinen oder Komponenten zum Herstellen, Behandeln oder Bearbeiten sowie daraus bestehende und gegebenenfalls auch chemische Anlagen od. dgl. zu verstehen) werden mit Schutzeinrichtungen in Form von Türen oder Klappen zwecks Zugänglichkeit versehen, deren geschlossene Stellung über wenigstens einen Sensor detektiert wird. Wenn Schutzeinrichtungen wie Türen oder Klappen verwendet werden, die aus Kunststoff, insbesondere aus Sichtgründen aus durchsichtigem Kunststoff bestehen, können sich diese leicht verwinden. Dementsprechend besteht auch die Gefahr, daß solche Schutzeinrichtungen wackeln und die zugehörigen Sensoren unter Umständen nicht oder zu früh ansprechen.In access protection devices for a walk-in, lockable space area of a mechanical system (this example, machinery or components for manufacturing, treating or processing and existing and possibly also chemical equipment od. Like.) To be understood with protective devices in the form of doors or flaps for the purpose of accessibility provided whose closed position is detected by at least one sensor. If protective devices such as doors or flaps are used, which are made of plastic, especially for reasons of visibility made of transparent plastic, they can easily twist. Accordingly, there is also the danger that such protective devices wobble and the associated sensors may not respond or too early.

DE 91 00 626 U1 beschreibt eine elektrisch auslösbare Entriegelungsvorrichtung, bei der die Verriegelung eines gegen eine Feder vorgespannten Hebels durch einen Permanentmagneten aufrechterhalten wird. Die Kraft des Permanentmagneten kann durch eine elektrisch aktivierbare Spule aufgehoben werden, so daß die Vorspannung der Feder wirksam wird. Die Feder bewirkt ein Ausfahren eines Zylinders und eine Mitbewegung des Hebels in gleiche Richtung um seinen Drehpunkt.DE 91 00 626 U1 describes an electrically releasable unlocking device in which the locking of a lever biased against a spring lever is maintained by a permanent magnet. The force of the permanent magnet can be canceled by an electrically activated coil, so that the bias of the spring is effective. The spring causes an extension of a cylinder and a movement of the lever in the same direction about its pivot point.

Aufgabe der Erfindung ist es, einen magnetischen Sicherheitsverschluß für eine bewegliche Schutzeinrichtung nach dem Oberbegriff des Anspruchs 1 zu schaffen, bei dem die seine Funktionsfähigkeit nicht durch eine Verwindung der Schutzeinrichtung beeinträchtigt wird.The object of the invention is to provide a magnetic security closure for a movable protective device according to the preamble of claim 1, wherein its functionality is not affected by a distortion of the protective device.

Diese Aufgabe wird entsprechend der Merkmalskombination des Anspruchs 1 gelöst.This object is achieved according to the combination of features of claim 1.

Dementsprechend wird ein für die Erfassung des geschlossenen und geöffneten Zustands der Schutzeinrichtung zuständige Sensor, insbesondere ein Sicherheitssensor, in unmittelbarer Nähe der Zuhalteeinrichtung für die Schutzeinrichtung positioniert, d.h. in die Zuhalteeinrichtung integriert. Dadurch können sich Verzüge der Schutzeinrichtungen nicht nachteilig bemerkbar machen.Accordingly, a sensor responsible for detecting the closed and opened condition of the guard, in particular a safety sensor, is positioned in the immediate vicinity of the guard locking means, i. integrated into the locking device. As a result, delays of the protective devices can not adversely affect.

Weitere Ausgestaltungen der Erfindung sind der nachfolgenden Beschreibung und den Unteransprüchen zu entnehmen.Further embodiments of the invention are described in the following description and the dependent claims.

Die Erfindung wird nachstehend anhand von in den beigefügten Abbildungen dargestellten Ausführungsbeispielen näher erläutert.

  • Fig. 1 zeigt schematisch im Schnitt eine erste Ausführungsform eines magnetischen Sicherheitsverschlusses im geschlossenen Zustand.
  • Fig. 2 und 3 zeigen die Betätigung des Sicherheitsverschlusses von Fig. 1.
  • Fig. 4 zeigt weniger schematisiert und perspektivisch eine Ausführungsform des Sicherheitsverschlusses von Fig. 1.
  • Fig. 5 zeigt schematisch im Schnitt eine zweite Ausführungsform eines magnetischen Sicherheitsverschlusses im geschlossenen Zustand.
  • Fig. 6 zeigt die Betätigung des Sicherheitsverschlusses von Fig. 5.
  • Fig. 7 zeigt schematisch im Schnitt eine dritte Ausführungsform eines magnetischen Sicherheitsverschlusses im geschlossenen Zustand.
  • Fig. 8 und 9 zeigen die Ausführungsform von Fig. 7 im geöffneten Zustand für eine schwenkbare bzw. einer verschiebbare Schutzeinrichtung.
  • Fig. 10 bis 12 zeigen eine zusätzliche Ausführungform schematisch im Schnitt im geschlossenen Zustand, zu Beginn des Öffnens und in geöffnetem Zustand.
The invention will be explained in more detail with reference to embodiments shown in the accompanying drawings.
  • Fig. 1 shows schematically in section a first embodiment of a magnetic security closure in the closed state.
  • FIGS. 2 and 3 show the operation of the safety closure of FIG. 1.
  • FIG. 4 shows, in a less schematic and perspective view, an embodiment of the safety closure of FIG. 1.
  • Fig. 5 shows schematically in section a second embodiment of a magnetic security closure in the closed state.
  • FIG. 6 shows the actuation of the safety closure of FIG. 5.
  • Fig. 7 shows schematically in section a third embodiment of a magnetic security closure in the closed state.
  • 8 and 9 show the embodiment of Fig. 7 in the open state for a pivotable or a sliding protective device.
  • 10 to 12 show an additional embodiment schematically in section in the closed state, at the beginning of opening and in the open state.

Bei der in Fig. 1 dargestellten Ausführungsform ist ein Rahmen 1, hier beispielhaft aus einem kastenförmigen Profil dargestellt, eines feststehenden Teils in Form einer Umzäunung, eines Gehäuses od.dgl. vorgesehen, der eine schwenkbare Schutzeinrichtung 2 in Form einer Tür oder Klappe aufnimmt, die an der nicht dargestellten Seite des Rahmens 1 etwa über Scharniere angelenkt ist.In the embodiment shown in Fig. 1, a frame 1, shown here by way of example from a box-shaped profile, a fixed part in the form of a fencing, a housing or the like. provided, which receives a pivotable protective device 2 in the form of a door or flap, which is articulated on the side of the frame 1, not shown about hinges.

An der Schutzeinrichtung 2 ist ein Gehäuse 3 angebracht, das einen Griff 4 zum Öffnen und Schließen der Schutzeinrichtung 2 trägt, der um eine Achse 5 gegenüber dem Gehäuse 3 schwenkbar ist.On the protective device 2, a housing 3 is mounted, which carries a handle 4 for opening and closing the protective device 2, which is pivotable about an axis 5 relative to the housing 3.

Außerdem ist an dem Rahmen 1 ein Sensorgehäuse 6 angebracht, das einen Sensor 7 aufnimmt, der dazu dient, den geschlossenen bzw, geöffneten Zustand der Schutzeinrichtung 2 festzustellen. Der Sensor 7 wird über eine Auslöseeinrichtung 8, die von dem an der Schutzeinrichtung 2 angebrachten Gehäuse 3 aufgenommen wird, entsprechend betätigt. Im geschlossenen Zustand der Schutzeinrichtung 2 liegt die Auslöseeinrichtung 8 dem Sensor 7 gegenüber.In addition, a sensor housing 6 is mounted on the frame 1, which receives a sensor 7, which serves to determine the closed or opened state of the protective device 2. The sensor 7 is actuated via a triggering device 8, which is received by the mounted on the protective device 2 housing 3, respectively. In the closed state of the protective device 2, the triggering device 8 is the sensor 7 opposite.

Bei dem Sensor 7 kann es sich um einen elektronischen Sensor handeln, der mit einem TAG als Auslöseeinrichtung 8 zusammenarbeitet, er kann aber auch aus einem oder mehreren Reedkontakten bestehen, die von Magneten als Auslöseeinrichtung 8 auslösbar sind. Es kann es hierbei aber auch um entsprechende berührungslose Näherungsschalter, Lichtschranken od.dgl. oder aber um elektromechanische Sensoren handeln. So können beispeilsweise Sicherheitssensoren verwendet werden, wie sie in DE 100 43 237 C1 oder DE 103 07 044 A1 beschrieben sind.The sensor 7 may be an electronic sensor which cooperates with a TAG as the triggering device 8, but it may also consist of one or more reed contacts which can be triggered by magnets as the triggering device 8. But it can also be the corresponding contactless proximity switch, photocells or the like. or act around electromechanical sensors. Thus, for example, safety sensors can be used, as described in DE 100 43 237 C1 or DE 103 07 044 A1.

Das Gehäuse 3 weist ferner eine Magnetanordnung 9 mit wenigstens einem Haltemagneten 10 auf, während das Sensorgehäuse 6 entsprechend mit gegenüberliegenden Polblechen 11 für die Haltemagneten 10 versehen ist. Im geschlossenen Zustand der Schutzeinrichtung 2 befinden sich der Haltemagnet 10 und das zugehörige Polblech 11 gegenüber, so daß eine vorgesehene Haltekraft zum Zuhalten der Schutzeinrichtung 2 geliefert wird. - Haltemagnet 10 und Polblech 11 können natürlich auch vertauscht im Sensorgehäuse 6 und Gehäuse 3 untergebracht sein. Statt eines Polblechs 11 könnte auch ein Magnet verwendet werden.The housing 3 further has a magnet arrangement 9 with at least one holding magnet 10, while the sensor housing 6 is provided correspondingly with opposite pole plates 11 for the holding magnets 10. When the protective device 2 is in the closed state, the holding magnet 10 is located and the associated pole plate 11 opposite, so that an intended holding force for locking the protective device 2 is supplied. - Holding magnet 10 and pole plate 11 can of course be reversed housed in the sensor housing 6 and housing 3. Instead of a pole piece 11, a magnet could also be used.

Der Griff 4 ist als ein am Gehäuse 3 gelagerter zweiarmiger Hebel ist, wobei ein Arm 12 des Hebels dem Sensorgehäuse 6 zugewandt ist und mit seinem freien Ende beim Verschwenken zum Öffnen der Schutzeinrichtung 2 die Haltemagnete 10 der Magnetanordnung 9 von den zugehörigen Polblechen 11 trennt. Hierzu kann der Griff 4 an seinem anderen Arm 13 ergriffen und gegenüber der Schutzeinrichtung 2 nach außen geschwenkt werden, vgl. Fig. 2, wodurch das freie Ende des Arms 12 mit dem Sensorgehäuse 6 benachbart zum Polblech 11 oder auch mit letzterem selbst in Eingriff gelangt und beim Weiterschwenken den Haltemagneten 10 von seinem Polblech 11 gegen die hierzwischen wirkende Haltekraft abhebt, so daß die Schutzeinrichtung geöffnet wird, vgl. Fig. 3.The handle 4 is as a two-armed lever mounted on the housing 3, wherein an arm 12 of the lever faces the sensor housing 6 and separates with its free end when pivoting to open the protective device 2, the holding magnets 10 of the magnet assembly 9 of the associated pole plates 11. For this purpose, the handle 4 can be grasped at its other arm 13 and pivoted outwards relative to the protective device 2, cf. Fig. 2, whereby the free end of the arm 12 adjacent to the pole piece 11 or even with the latter itself engages and lifts the holding magnet 10 of its pole plate 11 against the holding force acting therebetween during further pivoting, so that the protection device is opened , see. Fig. 3.

Durch entsprechende Wahl des Verhältnisses der Längen der Arme 12, 13 des als zweiarmiger Hebel ausgebildeten Griffs kann die zum Öffnen benötigte Kraft wesentlich kleiner als die Zuhaltekraft der Magneteinrichtung 9 gewählt werden.By appropriate choice of the ratio of the lengths of the arms 12, 13 of the handle designed as a two-armed lever, the force required for opening can be chosen to be much smaller than the clamping force of the magnetic device 9.

Zweckmäßigerweise wird benachbart zu der Magnetanordnung 9 ein Anschlag 14 angeordnet, wobei zugleich das wenigstens eine Polblech 11 in Richtung auf die Magnetanordnung 9 entsprechend einem vorgegebenen Spiel beweglich ist. Letzteres führt zu einem sicheren Kontakt zwischen Haltemagnet 10 und Polblech 11 im geschlossenen Zustand der Schutzeinrichtung 2, während der Anschlag 14 beim Schließen verhindert, daß die Energie des Schließens und eine damit verbundene Stoßeinwirkung auf die Magneteinrichtung 9 übertragen wird. Die derart beweglichen Polbleche 11 erlauben zudem einen gewissen Schiefsitz der Schutzeinrichtung 2.Appropriately, a stop 14 is disposed adjacent to the magnet assembly 9, wherein at least one pole piece 11 is movable in the direction of the magnet assembly 9 according to a predetermined game at the same time. The latter leads to a secure contact between the holding magnet 10 and the pole plate 11 in the closed state of the protective device 2, while the stop 14 prevents when closing, that the energy of the closing and an associated impact is transmitted to the magnetic device 9. The pole plates 11 which are movable in this way also allow a certain oblique position of the protective device 2.

Um Fehlausrichtungen der Schutzeinrichtung 2 zu kompensieren, ist es im übrigen zweckmäßig, ein entsprechendes Spiel vorzusehen. Dies kann dadurch geschehen, daß - wie in Fig. 4 beispielhaft dargestellt - beidseitig zu den Haltemagneten 10 jeweils ein ferromagnetisierbares Blech 10a, das Übermaß bezüglich des Haltemagneten 10 aufweist, mit Spiel zur hindurchgehenden Achse 5 angeordnet wird, wobei die Bleche 10a infolge der Magnetkraft an dem jeweiligen Haltemagneten 10 gehalten werden und beim in Kontakt Bringen mit dem jeweiligen Polblech 11 entsprechend einer Fehlausrichtung verschoben werden. - Es können aber auch die Polbleche 11 mit seitlichen Spiel vom Sensorgehäuse 6 gehalten werden. - Um eine begrenzte Lageveränderung der Schutzeinrichtung 2 kompensieren zu können, können die Polbleche 11 auch größer als die zugehörigen Haltemagnete 10 sein.In order to compensate for misalignments of the protective device 2, it is otherwise expedient to provide a corresponding game. This can be done happen that - as shown by way of example in Fig. 4 - on both sides of the holding magnet 10 each have a ferromagnetisierbares sheet 10a, the excess with respect to the holding magnet 10 is arranged with play to the passing axis 5, wherein the sheets 10a due to the magnetic force at the respective Holding magnet 10 are held and moved in contact with the respective pole plate 11 corresponding to a misalignment. - But it can also be the pole plates 11 are held with lateral clearance from the sensor housing 6. In order to be able to compensate for a limited change in position of the protective device 2, the pole plates 11 can also be larger than the associated holding magnets 10.

Bei der in Fig. 1 dargestellten Ausführungsform sind das Gehäuse 3 und das Sensorgehäuse 6 jeweils winkelförmig ausgebildet, so daß sie sich im Bereich der Magnetanordnung 9 im geschlossenen Zustand der Schutzeinrichtung 2, etwa einer Drehtür oder Klappe, entsprechend übergreifen.In the embodiment shown in Fig. 1, the housing 3 and the sensor housing 6 are each formed angularly, so that they overlap correspondingly in the region of the magnet assembly 9 in the closed state of the protective device 2, such as a revolving door or flap.

Gemäß Fig. 4 ist der Griff 4 mit seiner Achse 5 in seinem das Sensorgehäuse 6 übergreifenden Fortsatz 15 gelagert. Der Griff 4 umgreift dabei das Gehäuse 3 gabelförmig (oder umgekehrt) und ist am Ende seines Arms 13 mit einer Eingriffsausnehmung 16 versehen. In dem Fortsatz 15 befindet sich zu beiden Seiten jeweils ein Haltemagnet 10, der an der den Polblechen 11 zugewandten Seite aus dem Fortsatz 15 herausragt, und benachbart zur Stirnseite des Fortsatzes 15 die Auslöseeinrichtung 8 in Form einer Halterung 17 mit zwei Auslösemagneten 18 für Reedkontakte des Sensors 7 im Sensorgehäuse 6 (letzterer in Fig. 4 nicht dargestellt). Das Sensorgehäuse 6 nimmt die Polbleche 11 mit seitlichem und vertikalem Spiel unterhalb von Gehäuseöffnungen 19 auf. - Das Sensorgehäuse 6 nimmt außerdem eine Platine 20 auf.According to FIG. 4, the handle 4 is mounted with its axis 5 in its extension 15 extending over the sensor housing 6. The handle 4 engages around the housing 3 fork-shaped (or vice versa) and is provided at the end of his arm 13 with an engagement recess 16. In the extension 15 is located on both sides in each case a holding magnet 10 which protrudes on the pole plates 11 facing side of the extension 15, and adjacent to the end face of the extension 15, the triggering device 8 in the form of a holder 17 with two tripping magnets 18 for reed contacts Sensor 7 in the sensor housing 6 (the latter in Fig. 4 not shown). The sensor housing 6 receives the pole plates 11 with lateral and vertical clearance below housing openings 19. The sensor housing 6 also accommodates a circuit board 20.

Bei der in Fig. 5 dargestellten Ausführungsform handelt es sich um eine solche für eine Schutzeinrichtung 2 in Form einer Schiebetür oder Schiebklappe. Hierbei sind das Gehäuse 3 und das Sensorgehäuse 6 quaderförmig, wobei die Magnetanordnung 9 derart angebracht ist, daß die ausgeübte Magnetkraft senkrecht zur Verschieberichtung der Schutzeinrichtung 2 wirkt. Durch Anheben des Griffs 4 von der Schutzeinrichtung 2 weg (Fig. 6) wird der Haltemagnet 10 von seinem Polblech 11 getrennt und die Schutzeinrichtung kann aufgeschoben werden.The embodiment illustrated in FIG. 5 is one for a protective device 2 in the form of a sliding door or sliding flap. Here, the housing 3 and the sensor housing 6 are cuboid, wherein the magnet assembly 9 is mounted such that the applied magnetic force acts perpendicular to the direction of the protective device 2. By lifting the handle 4 away from the protective device 2 (FIG. 6), the holding magnet 10 is separated from its pole plate 11 and the protective device can be pushed open.

Bei einer Schutzeinrichtung 2 in Form einer Schiebetür kann es auch zweckmäßig sein, wenn der Hebel zum Öffnen in Richtung auf diese schwenkbar ist. Hierzu ist in Fig. 5 die Achse 5 lediglich entsprechend nach oben zu versetzen.In the case of a protective device 2 in the form of a sliding door, it may also be expedient for the lever to be pivotable in the direction of opening. For this purpose, in Fig. 5, the axis 5 only to be offset accordingly upwards.

Bei der in Fig. 7 dargestellten Ausführungsform sind das Gehäuse 3 und das Sensorgehäuse 6 mit einander zugewandten Schrägflächen 21, 22 versehen, so daß das Gehäuse 3 das Sensorgehäuse 6 auf dem Rahmen 1 teilweise übergreift, wobei sich zwischen den Schrägflächen 21, 22 ein Spalt befindet, der dadurch, daß benachbart zu den Schrägflächen 21, 22 der wenigstens eine Haltemagnet 10 und das zugehörige Polblech 11 jeweils angeordnet sind, von der Magneteinrichtung 9 überbrückbar ist. Auch der Sensor 7 und die Auslöseeinrichtung 8 befinden sich benachbart zu den Schrägflächen 21, 22. Die Schrägflächen 21, 22 besitzen einen Winkel von etwa 30 bis 60°, insbesondere etwa 45°, zur Fläche der Schutzeinrichtung 2, so daß diese durch Verschwenken des Griffs 4 - unabhängig davon, ob es sich um eine verschwenkbare oder eine verschiebbare Schutzeinrichtung 2 handelt - gegen die magnetische Zuhaltekraft geöffnet werden kann.In the embodiment shown in Fig. 7, the housing 3 and the sensor housing 6 are provided with mutually facing inclined surfaces 21, 22, so that the housing 3, the sensor housing 6 on the frame 1 partially overlaps, wherein between the inclined surfaces 21, 22, a gap which is characterized by the fact that adjacent to the inclined surfaces 21, 22 of the at least one holding magnet 10 and the associated pole plate 11 are respectively arranged, can be bridged by the magnetic device 9. Also, the sensor 7 and the triggering device 8 are adjacent to the inclined surfaces 21, 22. The inclined surfaces 21, 22 have an angle of about 30 to 60 °, in particular about 45 °, to the surface of the protective device 2, so that these by pivoting the Handle 4 - regardless of whether it is a pivotable or a sliding guard 2 - can be opened against the magnetic clamping force.

Bei der in Fig. 10 dargestellten Ausführungsform sind im Vergleich zur Ausführungsform von Fig. 7 die Haltemagneten 9 nicht im oder am Gehäuse 3, sondern am Hebel selbst angebracht. Durch Verschwenken des Hebels werden die Haltemagneten 9 von ihren Polblechen 10 soweit getrennt, daß die verbleibende magnetische Restkraft, die hierzwischen wirkt, ohne weiteres zum Öffnen durch Verschwenken einer entsprechenden Schutzeinrichtung 2, Fig. 10, oder durch Verschieben einer entsprechenden Schutzeinrichtung 2, Fig. 11, überwunden werden kann.In the embodiment shown in Fig. 10, the holding magnets 9 are not mounted in or on the housing 3, but on the lever itself compared to the embodiment of Fig. 7. By pivoting the lever, the holding magnets 9 are separated from their pole plates 10 so far that the remaining residual magnetic force acting therebetween, readily to open by pivoting a corresponding protective device 2, Fig. 10, or by moving a corresponding protective device 2, Fig. 11, can be overcome.

Claims (10)

  1. Magnetic safety closure for a protection device (2) which can be moved with respect to a fixed part, comprising a housing (3) which can be attached to the protection device and has a handle (4) for opening and closing the protection device (2), and comprising a sensor housing (6) which can be attached to the fixed part and has a sensor (7) for determining whether the protection device (2) is closed or open, the housing (3) located on the protection device (2) having an initiating device (8) for the sensor (7), which device is opposite said sensor (7) when the protection device (2) is closed, and the housing (3) and the sensor housing (6) sharing between them a magnet arrangement (9) having at least one holding magnet (10) and an associated pole plate (11), characterized in that the handle (4) is a two-armed lever pivotably mounted on the housing (3), one arm (12) of the lever facing the sensor housing (6) and with its free end disconnecting the at least one holding magnet (10) of the magnet arrangement (9) from its associated pole plate (11) when the handle is pivoted out in order to open the protection device.
  2. Closure according to Claim 1, characterized in that the at least one holding magnet (10) is held with lateral play.
  3. Closure according to Claim 1 or 2, characterized in that the at least one holding magnet (10) is held with play in the direction of the associated pole plate (11).
  4. Closure according to one of Claims 1 to 3, characterized in that, adjacent to the at least one holding magnet (10), a magnetized plate (10a), which has larger dimensions than the holding magnet (10), is arranged with play with respect to the holding magnet (10).
  5. Closure according to one of Claims 1 to 4, characterized in that the at least one holding magnet (10) is arranged on the rotation axis (5) of the lever.
  6. Closure according to one of Claims 1 to 5, characterized in that a stop (14) is arranged adjacent to the magnet arrangement (9).
  7. Closure according to one of Claims 1 to 6, characterized in that the arm (13), which faces away from the sensor housing (6), of the lever can be pivoted away from the protection device (2) or towards the latter in order to open the protection device (2).
  8. Closure according to one of Claims 1 to 7, characterized in that a gap which runs obliquely with respect to the plane of the protection device (2) and can be bridged by the magnet arrangement (9) is provided between the housing (3) and the sensor housing (6) such that the protection device (2), with the housing (3), overlaps the fixed part.
  9. Closure according to Claim 8, characterized in that the gap runs obliquely with respect to the plane of the protection device (2) at an angle of 30° to 60°, in particular approximately 45°.
  10. Closure according to one of Claims 1 to 9, characterized in that the protection device (2) can be pivoted or moved with respect to the fixed part.
EP20040024134 2003-10-18 2004-10-09 Magnetic security closure for a mobile protection device Expired - Lifetime EP1526239B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10348527 2003-10-18
DE2003148527 DE10348527B3 (en) 2003-10-18 2003-10-18 Magnetic safety lock for a movable safety device

Publications (2)

Publication Number Publication Date
EP1526239A1 EP1526239A1 (en) 2005-04-27
EP1526239B1 true EP1526239B1 (en) 2006-07-19

Family

ID=34384375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040024134 Expired - Lifetime EP1526239B1 (en) 2003-10-18 2004-10-09 Magnetic security closure for a mobile protection device

Country Status (3)

Country Link
US (2) US20050108945A1 (en)
EP (1) EP1526239B1 (en)
DE (2) DE10348527B3 (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7784219B2 (en) * 2004-11-01 2010-08-31 Sharp Kabushiki Kaisha Door opening and closing mechanism
DE202005002960U1 (en) * 2005-01-21 2006-06-01 Liebherr-Hausgeräte Ochsenhausen GmbH Refrigerator and / or freezer door handle
EP1762679B1 (en) * 2005-09-07 2016-10-26 VKR Holding A/S Window securing means and method
WO2007028590A2 (en) * 2005-09-07 2007-03-15 Vkr Holding A/S Window securing means and methods
DE102006045073A1 (en) * 2006-09-21 2008-04-10 Dieter Kemke Magnetic locking system and security door with a magnetic locking system
DE102006061083A1 (en) * 2006-12-22 2008-06-26 BSH Bosch und Siemens Hausgeräte GmbH Refrigeration device with door opening help
US20100289277A1 (en) * 2009-05-15 2010-11-18 Tang Gordon C Easily installed and non-defacing security latch
US8939476B2 (en) * 2009-05-15 2015-01-27 Gordon C. Tang Easily installed and non-defacing security latch
NZ599424A (en) * 2009-10-06 2013-05-31 Assa Abloy Australia Pty Ltd Improved electric strike and combination with improved lock assembly
US7975837B2 (en) * 2009-12-11 2011-07-12 Heat And Control, Inc. Conveyor with safety gate
US8699200B2 (en) * 2010-02-05 2014-04-15 Honeywell International Inc. Secure non-contact switch
US8456792B2 (en) * 2010-02-05 2013-06-04 Honeywell International Inc. Secure non-contact switch
DE102010012581A1 (en) 2010-03-23 2011-09-29 Arca Beteiligungen Gmbh drive arrangement
US8525686B2 (en) 2010-05-28 2013-09-03 Rockwell Automation Technologies, Inc. Variable adjustable door latch
US8552875B2 (en) 2010-05-28 2013-10-08 Rockwell Automation Technologies, Inc. Efficient and safe door locking control in power-off and power-on conditions
ITRM20120492A1 (en) * 2012-10-16 2014-04-17 Bitron Spa DOOR-LOCK DEVICE.
US9347247B2 (en) * 2013-10-30 2016-05-24 General Electric Company Latch assembly
CN103883174B (en) * 2014-03-19 2016-02-24 广东镖臣防盗设备有限公司 Double end vibrationproof electromagnet apparatus
DE102015008761B3 (en) * 2015-07-06 2016-11-10 Cosi Elektronik Gmbh Magnetic security lock
JP6708403B2 (en) 2015-12-10 2020-06-10 キヤノン株式会社 Image forming device
CN105460366B (en) 2015-12-28 2017-11-21 同方威视技术股份有限公司 Protector and the LR laser raman safety check instrument including the protector
US9926729B2 (en) * 2016-01-06 2018-03-27 J & S Company Llc Retractable screen door handle assembly
TWI586572B (en) * 2016-08-24 2017-06-11 Sunny Wheel Industrial Co Ltd A magnetic attraction device for use in addition to foot
US20180094463A1 (en) * 2016-10-05 2018-04-05 Huf North America Automotive Parts Mfg. Corp. Door handle assembly with a magnetic field detector
TWI607918B (en) * 2016-12-22 2017-12-11 Sunny Wheel Industrial Co Ltd Magnetic suction mounting device for soil removal
US10865050B2 (en) 2017-08-30 2020-12-15 Honda Motor Co., Ltd. Manufacturing process switch for triggering an event when opened
US11261627B2 (en) * 2018-08-09 2022-03-01 Kason Industries, Inc. Magnet latch
US10895094B2 (en) * 2018-09-07 2021-01-19 Consumer 2.0, Inc. Automated door lock
IT201900011694A1 (en) 2019-07-12 2021-01-12 Pizzato Elettrica Srl SAFETY SWITCH WITH TOUCH PANEL FOR ACCESS CONTROL OF MACHINES OR INDUSTRIAL PLANTS
IT202000025354A1 (en) 2020-10-26 2022-04-26 Pizzato Elettrica Srl HANDLE ACTUATOR DEVICE FOR ACCESSES TO INDUSTRIAL MACHINERY OR INSTALLATIONS AND RELATED ASSEMBLY

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2673111A (en) * 1951-10-20 1954-03-23 Macy O Teetor Magnetic door catch
US3201960A (en) * 1963-11-19 1965-08-24 Kason Hardware Corp Combination magnetic and mechanical latch
US4904005A (en) * 1988-11-18 1990-02-27 Harrow Products, Inc. Entrance security system
DE9100626U1 (en) * 1991-01-19 1991-04-11 H. Kuhnke Gmbh Kg, 2427 Malente Electrically triggered release device
GB9419404D0 (en) * 1994-09-27 1994-11-09 Nt Security Ltd Electromagnetic locking devices
US5865483A (en) * 1997-01-16 1999-02-02 Dubravin; Roman Electromechanical locking system
DE19711588A1 (en) * 1997-03-20 1998-09-24 Euchner Gmbh & Co Safety switch
US5883345A (en) 1997-12-23 1999-03-16 Otis Elevator Company Sonic position measurement system
US6539760B1 (en) * 1999-05-24 2003-04-01 K.A. Schmersal Gmbh & Co. Monitoring device
AU2001266260B2 (en) * 2000-06-29 2005-09-15 Derek Fly Locking device for a door
NL1018149C2 (en) * 2001-05-25 2002-11-26 Tamar Vanessa Grahmbeek System of two mutually identical, flat elements which can be magnetically coupled, the system comprising provisions for disconnection of said elements by a user.
DE10150463A1 (en) 2001-10-16 2003-04-17 Hcs Hydraulic Control Systems Electronic device for regulating functions of hydraulic and electric elevators
US6758504B2 (en) * 2002-08-30 2004-07-06 Michael C. Mandall Electromagnetic door lock

Also Published As

Publication number Publication date
EP1526239A1 (en) 2005-04-27
US20050108945A1 (en) 2005-05-26
US7377560B2 (en) 2008-05-27
DE502004000980D1 (en) 2006-08-31
US20070096856A1 (en) 2007-05-03
DE10348527B3 (en) 2005-08-18

Similar Documents

Publication Publication Date Title
EP1526239B1 (en) Magnetic security closure for a mobile protection device
DE2914565C2 (en) Lock for motor vehicle doors with indication of the locking status
DE102008011551B4 (en) Self-locking additional locking
DE112006000426B4 (en) safety switch
EP1632921B1 (en) Manual hazard warning device
EP2011935A1 (en) Swivel grip with electrically lockable grip lever
EP4041969B1 (en) Switchgear cabinet having a switchgear cabinet door that comprises a door status sensor
DE69926455T2 (en) Key safety switch
EP3908728B1 (en) Motor vehicle lock
DE19914568A1 (en) Magnetically actuated sensor with reed contact e.g. for detecting open state of door or window has security reed contacts for monitoring external magnetic fields
EP2933404A1 (en) Door opener with feedback contact
EP2787110A1 (en) Door lock for electric household appliances
EP1071214B1 (en) Monitoring apparatus
DE10339363B4 (en) Access protection device for a room area
DE102012007023A1 (en) Lock device for security grating enclosing machine tool, has projection that prevents movement of lock bolt on lock casing by receipt of movable unit in projection for preventing collision
EP2284432B1 (en) Device for monitoring the status of a secure facility
DE20208183U1 (en) Device for securing emergency exit doors
DE10307043B4 (en) safety lock
DE102006001560A1 (en) Quiescent current door opener has latch which is locked electrically, and electromagnet has anchor which engages as locking element at latch
DE29919268U1 (en) Loading device
EP3670794A1 (en) Door assembly and method for operating a door assembly
DE4335569A1 (en) Security device for door raised and lowered between lateral rails - is based on spring-biased rotary plate which holds bolt in retracted position only while lifting cable is taut
DE19609016C2 (en) Safety device for a printing machine
AT506943B1 (en) PROTECTION DEVICE FOR AN INJECTION MOLDING MACHINE
EP3293711B1 (en) Coin sorting machine for providing easier access to a coin transport path

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

17P Request for examination filed

Effective date: 20050701

AKX Designation fees paid

Designated state(s): DE FR GB IT

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20060719

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 502004000980

Country of ref document: DE

Date of ref document: 20060831

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20061219

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070420

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20151028

Year of fee payment: 12

Ref country code: GB

Payment date: 20151021

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20151023

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20151229

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502004000980

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20161009

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161102

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161009

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161009