EP0388823B1 - Locking device against simultaneous switching-on of two mecanically or electromecanically operated switchgears - Google Patents

Locking device against simultaneous switching-on of two mecanically or electromecanically operated switchgears Download PDF

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Publication number
EP0388823B1
EP0388823B1 EP90105069A EP90105069A EP0388823B1 EP 0388823 B1 EP0388823 B1 EP 0388823B1 EP 90105069 A EP90105069 A EP 90105069A EP 90105069 A EP90105069 A EP 90105069A EP 0388823 B1 EP0388823 B1 EP 0388823B1
Authority
EP
European Patent Office
Prior art keywords
slide
switching
housing
angled lever
switched
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
EP90105069A
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German (de)
French (fr)
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EP0388823A2 (en
EP0388823A3 (en
Inventor
Klaus Dieter Nürenberg
Kurt Händler
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.)
Eaton Industries GmbH
Original Assignee
Kloeckner Moeller GmbH
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Filing date
Publication date
Application filed by Kloeckner Moeller GmbH filed Critical Kloeckner Moeller GmbH
Publication of EP0388823A2 publication Critical patent/EP0388823A2/en
Publication of EP0388823A3 publication Critical patent/EP0388823A3/en
Application granted granted Critical
Publication of EP0388823B1 publication Critical patent/EP0388823B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/32—Latching movable parts mechanically
    • H01H50/323—Latching movable parts mechanically for interlocking two or more relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/044—Application rejection 1: coded interacting surfaces, polarising, e.g. to avoid insertion of a circuit breaker or fuse or relay or rating plug of the wrong caliber or in the wrong direction

Definitions

  • the locking device for achieving a mechanical switch-on lock according to DE-PS 29 51 356, contains three moving parts, namely two identical actuating slides, each of which is coupled to a switching element and as an intermediate element an axleless rocker on which the actuating slides act. By shifting the rocker in a housing, the locking positions for one or the other switching element are triggered via the actuating slide.
  • these are arranged between the two switching elements, such as contactors, a construction which is particularly applicable to the symmetrical locking devices, as described, for example, in DE-AS 12 64 579 or DE-PS 29 51 356.
  • the invention has for its object to prevent the simultaneous switching on of two switching elements, such as contactors, from the common zero position or the switching on of the second contactor when the first contactor is switched on with a simple mechanical locking device.
  • the width of the contactors should remain unchanged and contactors should be arranged directly next to each other.
  • the switching elements should both with unchanged construction Auxiliary switch or other accessories and locking device as well as without auxiliary switch or without auxiliary switch but with locking device can be used.
  • the shape of the locking device is also intended to increase the shock resistance of the entire arrangement.
  • the present invention relates to a locking device for mechanical locking of one of two switching elements according to the preamble of claim 1, which is based on a device according to the device known from DE-PS 29 51 356.
  • the object on which the invention is based is achieved in that the locking member is designed as an angle lever and is rotatable about an axis engaging in a fixed manner on the lower housing part in the area of the angle corner in a bearing bore of the angle lever, and an angle arm of the angle lever is articulated with one of the two slides with a variable position , is connected to the fixed axis of rotation of the angle lever, axis-parallel axis and the other angle arm of the angle lever by moving the slide articulated with the angle lever into the end positions corresponding to the switch-on position or switch-off position of the coupled switching element in one of the freedom of movement of the second slide for switching on the second slide Slider-coupled switching element blocking position or in a position releasing the movement space necessary for switching on the switching element coupled to the second slide can be moved
  • the angle lever is arranged between the two slides in such a way that they can cooperate with one end region of one of the angle arms of the angle lever.
  • the coupling elements to the switching elements to be locked against each other are preferably formed on the top and bottom of the slide and extend perpendicular to the direction of movement of the slide in the housing and parallel to the axis of rotation of the angle lever. They are designed as pins or receiving pins, with corresponding recesses for the passage of the coupling members being formed on the lower and upper parts of the housing. On the recesses on the top of the housing, the switching position of the switching elements ON, OFF can be seen at the position of the coupling elements.
  • the mechanical locking device according to the invention housed in a housing can be mounted on two switching elements, in particular contactors, arranged directly next to one another.
  • the direction of installation of the contactors is the same.
  • no additional space is required on the mounting rail for contactors mounted on mounting rails.
  • the top of the housing of the locking device is structured like the top of the protections, ie the two contactors to be locked next to one another. This makes it possible for auxiliary switches or other accessories to be arranged on the locking device without further aids.
  • the invention enables the locking device to be arranged between auxiliary switches and switching elements, such as contactors.
  • the locking device with housing is included in the coding device of the switching mechanism by using coding pins which lead from the switching element through the housing of the locking device are the Coding is transferable to the auxiliary switches that are placed on the locking device.
  • the housing is preferably provided with coding pins which are movably mounted, which protrude from the underside of the housing and are accessible from above through recesses in the upper part of the housing and which take over the coding from the switching elements and transmit them, for example, to the auxiliary switches.
  • the housing of the locking device is structured in such a way that it can be adapted to two contactor surfaces arranged next to one another, which corresponds to a repetitive housing structure arranged in series.
  • the housing is then not symmetrical, but contains two roughly identical parts that are joined together in the same direction; this applies to the lower part of the housing as well as to the upper part of the housing.
  • the housing has both guide pins and snap hooks on the underside, which are inserted or latched into corresponding recesses on the upper side of the contactor. Accordingly, the top of the housing is equipped with recesses so that auxiliary switches or other accessories with corresponding guide pins and snap hooks can either be placed on the housing or directly on the protection and snapped into place.
  • Defined switching paths for switching the coupled switching elements on and off can be achieved by appropriately guiding the slide in the housing of the locking device.
  • the slides are each positively guided in a recess in the lower housing part for executing the reciprocating switching movement for defined switching paths.
  • the one slider is further guided and secured by the articulated connection with the angle lever, in a further embodiment of the invention it is provided that for the not Angle lever articulated slide inside the housing, a guide groove is formed between guide rails or the like formed on the lower and / or upper part of the housing, in which the slide can be moved back and forth in the switching direction.
  • FIG. 21 shows schematically the arrangement of the blocking device 3 on two contactors 1, 2 arranged directly next to one another without intermediate space and intermediate elements as switching elements, which is intended to prevent the second contactor from switching when the first is in the switched-on position.
  • the locking device 3 is designed such that, as indicated by dashed lines, an auxiliary switch 4 can be placed and engaged in the direction of the arrow, of course also for the second contactor.
  • the locking device 3 can be installed between accessories such as auxiliary switches and contactors.
  • the coding pins 500 which are only indicated schematically at one point and are guided in the housing of the blocking device 3, ensure the correct assignment of the auxiliary switches to the contactors, since they are guided through the blocking device into the switching elements and take over the coding from the contactor and transfer to counterparts located in the auxiliary switch.
  • the contactors can also be used universally, with and without a locking device, as they are in the installation width cannot be changed when using the locking device.
  • the locking device 3 has a housing composed of the lower housing part 100 and the upper housing part 200, in which the elements which bring about the mechanical locking, see FIG. 15, namely two sliders 300, 300a and the locking element of the angle lever 400, are accommodated.
  • FIG. 15 the position and assignment of the slides 300, 300a and the angle lever 400 as a locking element between the two slides can be seen in a view of the lower housing part 100.
  • the housing is designed for connection to two switching elements in a corresponding repetition of shapes, the slide 300 cooperating with the contactor 1 and the slide 300a with the contactor 2.
  • the slide 300 is coupled to the contactor 1 according to FIG. 21, the slide 300a to the contactor 2 according to FIG. 21.
  • the angle lever 400 can be rotated about the axis 123 which is fixedly arranged on the lower housing part, see arrow S3.
  • the slider 300 is connected in an articulated manner to an angle arm of the angle lever 400 via the axis 301, which forms a movable pivot point for the angle lever 400 as a result of the slide movement of the slider 300 in the direction of the arrow S1, S2.
  • the slider 300a is rotated by 180 ° with respect to the slider 300 and is loosely arranged on the opposite side of the angle lever in the lower housing part.
  • the possibilities of movement of the slide 300a are limited by guides on the inside of the housing to the back and forth movement in positive guides in the switching direction S1, S2.
  • the length of the switching path of the slide 300a is limited in both directions, on the one hand by the angle lever, and on the other hand by the driving path of the coupled pin of the contactor.
  • the slide 300a is mounted in a guide groove 130 formed between the guide strip 122 and the base 121a and can be displaced in the direction of the arrow S1, S2.
  • the elements 300, 400, 300a are thus in the lower housing part arranged that the insertion holes 116, 116a formed in the lower housing part for the coding pins remain free even when the position of the elements is shifted.
  • FIG. 1 An advantageous embodiment of the lower housing part 100 for receiving the movable elements of the locking device is shown in Figures 1 to 3. Since the housing 100 serves to be placed on two identical contactors, it also shows in its basic construction two identical halves placed against one another at the boundary line G, the functional areas of which are designed to match the connection to the contactors on the top and bottom. For the positive locking locking of the lower housing part 100 with the top of the contactors, three fitting pins 101, 102, 103 for the first contactor and fitting pins 101a, 102a, 103a for the second contactor are formed in a triangular arrangement on the housing underside 110, see FIG.
  • Edge recesses 106, 107 and 106a, 107a are also formed on the outer walls of the housing and snap hooks 104, 105 and 104a, 105a, which protrude from the underside of the housing, are provided in pairs for snapping into corresponding undercuts on the shooters.
  • the areas 126, 127 and 126a, 127a and 113 for placing the upper housing part 200 according to FIGS. 4 to 6 are formed flush in one plane and offset from the other edge areas.
  • matching holes 124, 125 and 124a, 125a are assigned to each other in pairs, which serve to receive corresponding fitting pins on the underside of an auxiliary switch 4, see FIG. 21, and which are analogously on the top the contactors 1 and 2 serve to insert the fitting pins 101, 103 and 101a, 103a on the underside of the housing.
  • the lower part of the housing has in each half a particularly rectangular opening 117 and 117a for the coupling elements of the locking device to the contactors, and insertion holes 116 and 116a for the coding pins 500, see schematic indication in FIG. 3.
  • this housing area is further equipped with the guide groove 130 for the slider resting on the housing bottom, which, for example, between the guide bar 122 formed on the housing bottom and a base wall of the insertion holes 116a for the coding pins surrounding base 121a is formed.
  • the upper housing part for closing the lower housing part is shown by way of example in FIGS. 4 to 6.
  • the upper housing part 200 has a peripheral edge formed with latching grooves 205, 206 and projections 203, 204, with which it can be finally placed onto the lower housing part in a form-fitting and flush manner with the upper side thereof.
  • the formation of the areas assigned to the two contactors at the boundary line G is also repeated in the upper housing part.
  • locking webs 210, 211, 212 projecting opposite one another at the edges are formed in pairs, which enable a positive locking of the upper housing part on the lower housing part. Further pairs of insertion holes 213, 214 and 213a, 214a are provided in the upper part of the housing.
  • a recess 215 or 215a is provided in a sufficient size, which also allows a corresponding movement of the slide or pin.
  • the switch position ON I or OFF 0 of the contactors 1, 2 is also indicated at the position of the pin 302 or 302a, see dashed lines in FIG. 4.
  • the upper housing part 200 has openings 216 or 216a for inserting coding pins.
  • cams 207, 207a for clipping on sign carriers or the like are formed on each upper housing part half.
  • the Recesses 215, 215a for inserting the coupling members are surrounded on both sides with guide webs 217, 218 and 217a, 218a which extend parallel to the direction of movement of the slide.
  • additional guide ribs 220, 219 are formed in the central area, which serve to guide the slide.
  • the two sliders 300 of the locking device are of identical design here for manufacturing reasons.
  • An advantageous embodiment of the actuating slide 300 is shown in FIGS. 7 to 9 in three views.
  • the plate-shaped slide 300 is on its lower part of the housing, i.e. Bottom inner side 111, facing and lying on side 306 with a receiving pin 303 projecting perpendicular to the slide extension with a fitting hole 304 for the pin of the contactor to be coupled.
  • the pin 302 is formed so as to extend approximately opposite the receiving pin 303 for engagement in the auxiliary switch. This enables a switch position indicator.
  • the axle pin 301 for guiding the angle lever is also formed on this side of the slide 300, the axle pin being provided at one end of the slide, which is preferably also tapered by the bulge 308, while at the other end region of the slide the two are facing each other opposite pins or receiving pins are arranged.
  • the end 307 of the slider, in the area of which the journal 301 is formed, is slightly concave in its contour.
  • the angle lever 400 has the continuous bearing bore 401 in the corner corner region for placement on the journal 123 formed on the lower housing part.
  • One angle lever 403 extends with a slightly convex end face 406 in the direction of the loosely inserted slide 300a.
  • the other angle arm 404 extends approximately at right angles to this and is formed in its end region with the bearing bore 402 for receiving the journal 301 of the slide 300.
  • the angle lever for receiving the journal of the slide in the area covering the slide is formed on the underside with the recess 405, so that the angle lever can also be mounted in a plane-parallel manner in the area of the second arm 403 to the housing base and perpendicular to the axes 123, 301 Tilting with respect to the axes of rotation is avoided.
  • the movable elements used in the lower housing part 100 according to FIG. 15, namely the two sliders 300 and 300a, are guided in the lower housing part in the recesses 117 and 117a with the receiving pins 303 guided therein in the direction of displacement of the slides.
  • the switching paths of the sliders 300 and 300a are predetermined and the possibility of movement is determined by the interposed angle lever 400, which is movable about the fixed axis of rotation 123 and is articulated to the slider 300 and assumes defined positions with respect to the second slider 300a .
  • the slides are in the position shown there for both contactors, ie both sliders 300 and 300a, in the switched-off position.
  • the slide 300 according to FIG. 15 is moved in the direction of arrow S1 via the pin 10 of the contactor 1 coupled to the driving pin 303, see FIG. 19, into the switch-on position "ON (1)", see FIG. 16.
  • the slide takes the articulated angle lever 400 along with it, so that its free angle arm 403 swings inward in front of the end 307a of the second slide 300a and the freedom of movement in front of the second slide 300a blocked, see FIG. 16.
  • the mutually facing ends 406 of the angle lever 403 and the slide end 307a are convex or concave in order to be able to slide past one another.
  • the slide 300a coupled to the second contactor is at the same time blocked by the pivoted-in angle arm 403 in the off position 2, ie mechanically locked. Only when the contactor 1 is switched off and the pin of the contactor 1 returns the slide 300 in the direction of arrow S2, see FIG. 15, to the "off" position (1) of the contactor 1, does the angle lever 400 move out of the blocking position according to FIG. 16 swung out again.
  • FIG. 19 shows part of the partial cross section AA, from which the gripping of the receiving pin 303 of the slide 300 through the lower housing part 100 through the recess 117 is illustrated, the pin 10 of the contactor 1 shown in broken lines engaging in the receiving bore 304. Analag engages on the underside of the pin of the contactor 2 on the slide 300a for the carry-along movement.
  • FIG. 20 shows the partial cross-section BB from FIG. 18, from which the stationary axis of rotation 123 and the movable axis of rotation 301 of the angle lever 400 used here can be seen.
  • the mechanical locking system according to the invention thus prevents two contactors which are equipped with the blocking device from being switched on at the same time, since the arrangement is such that only one contactor can be moved into one switch-on position at a time. Furthermore, the blocking device prevents the other contactor from being switched on when a contactor is switched on.

Abstract

The invention relates to a mechanical locking device for two mechanically or electromechanically operated switchgears, arranged side-by-side, for preventing the simultaneous switching on of both contactors, a slide being coupled to each contactor and each slide acting on a locking device which is arranged such that it can move between the two slides, and the locking device being designed as a angled lever which can rotate about a rotation axle, which is designed to be fixed in position on the housing, and whose one end is connected in a jointed manner to one of the two slides via a rotation axle whose position can vary and which is aligned on an axis parallel to the fixed rotation axle, and the other angled arm of the angled lever can be moved, by rotating the angled lever, into a position locking the second slide. <IMAGE>

Description

Bei mechanisch oder elektromagnetisch betätigten in Maschinen, Anlagen, Fahrzeugen usw. installierten Schaltorganen wird häufig gefordert, daß ein bestimmtes Schaltorgan blockiert ist, solange ein anderes bestimmtes Schaltorgan sich in eingeschaltetem Zustand befindet. Das Erfordernis des Verhinderns des gleichzeitigen Einschaltens zweier Schaltorgane tritt besonders häufig bei Anlagen mit elektrischen Schaltorganen auf, und zwar insbesondere bei Schaltschützen und Relais, wie Wendeschützkombinationen und Stern-Dreieck-Schaltungen, bei denen zwei Leistungsschütze nicht gleichzeitig anziehen dürfen. Auch muß nach Öffnung eines Schützes die erfolgende Stromunterbrechung vollständig beendet sein, bevor sich die Kontake eines zweiten Schützes berühren.In the case of mechanically or electromagnetically actuated switching elements installed in machines, systems, vehicles, etc., it is often required that a specific switching element is blocked as long as another specific switching element is in the switched-on state. The requirement to prevent two switching elements from being switched on at the same time occurs particularly frequently in systems with electrical switching elements, in particular in contactors and relays, such as reversing contactor combinations and star-delta circuits, in which two power contactors must not pull in at the same time. Also, after opening a contactor, the current interruption must be completely ended before the contacts of a second contactor touch.

Zur Lösung dieser Aufgabe sind bereits mechanische Verriegelungen verschiedener Konstruktionen bekanntgeworden, wozu beispielsweise auf die Verriegelungsvorrichtungen gemäß DE-AS 12 94 523, DE-AS 12 64 579, FR-PS 20 45 090, EP-OS 02 14 630 und DE-PS 29 51 356 beispielsweise verwiesen wird. Bei den Verriegelungsvorrichtungen gemäß DE-AS 12 64 579, der FR-PS 20 45 090 und EP-OS 02 14 630 ist die Verriegelungseinrichtung spiegelsymmetrisch aufgebaut in der Ausstellung und die Verriegelung erfolgt durch das jeweilige gegeneinander Verriegeln durch Verändern der Position eines der Verriegelungshebel. Diese mechanischen Verriegelungen können auch noch zusätzlich mit einer elektrischen Verriegelungseinrichtung ausgestattet sein, siehe beispielsweise FR-PS 20 45 090 oder DE-AS 12 94 523.To solve this problem, mechanical interlocks of various designs have already become known, for example to the locking devices according to DE-AS 12 94 523, DE-AS 12 64 579, FR-PS 20 45 090, EP-OS 02 14 630 and DE-PS 29 51 356, for example. In the locking devices according to DE-AS 12 64 579, FR-PS 20 45 090 and EP-OS 02 14 630, the locking device is mirror-symmetrical in the exhibition and the locking is carried out by locking against each other by changing the position of one of the locking levers. These mechanical locks can also be additionally equipped with an electrical locking device, see for example FR-PS 20 45 090 or DE-AS 12 94 523.

Bei der Verrriegelungsvorrichtung zum Erzielen einer mechanischen Einschaltsperre gemäß der DE-PS 29 51 356 enthält die Verriegelungsvorrichtung drei bewegliche Teile, nämlich zwei gleiche Betätigungsschieber, die je an ein Schaltorgan angekoppelt sind und als Zwischenglied eine achslose Wippe, auf die die Betätigungsschieber einwirken. Durch Verlagerung der Wippe in einem Gehäuse werden die Verriegelungsstellungen für das eine bzw. andere Schaltorgan über die Betätigungsschieber ausgelöst.In the locking device for achieving a mechanical switch-on lock according to DE-PS 29 51 356, the locking device contains three moving parts, namely two identical actuating slides, each of which is coupled to a switching element and as an intermediate element an axleless rocker on which the actuating slides act. By shifting the rocker in a housing, the locking positions for one or the other switching element are triggered via the actuating slide.

Je nach Ausbildung der Verriegelungseinrichtung werden diese zwischen den beiden Schaltorganen, wie Schützen, angeordnet, eine Bauweise, die insbesondere auf die symmetrisch aufgebauten Verriegelungseinrichtungen anwendbar ist, wie beispielsweise in der DE-AS 12 64 579 oder DE-PS 29 51 356 beschrieben.Depending on the design of the locking device, these are arranged between the two switching elements, such as contactors, a construction which is particularly applicable to the symmetrical locking devices, as described, for example, in DE-AS 12 64 579 or DE-PS 29 51 356.

Vielfach wird jedoch gefordert, Schütze mit unveränderter Projektierungsbreite für alle Anwendungsfälle vorzusehen, also auch bei Einsatz von Sperrvorrichtungen.However, it is often required to provide contactors with unchanged configuration width for all applications, including when using locking devices.

Der Erfindung liegt die Aufgabe zugrunde, das gleichzeitige Einschalten zweier Schaltorgane, wie Schütze, aus der gemeinsamen Nullstellung heraus bzw. das Einschalten des zweiten Schützes bei eingeschaltetem ersten Schütz mit Sicherheit durch eine einfache mechanische Verriegelungsvorrichtung zu verhindern. Hierbei soll die Breite der Schütze unverändert bleiben und Schütze unmittelbar nebeneinander angeordnet werden. Des weiteren sollen die Schaltorgane bei unveränderter Bauweise sowohl mit Hilfsschalter oder anderem Zubehör und Verriegelungsvorrichtung als auch ohne Hilfsschalter bzw. ohne Hilfsschalter aber mit Verriegelungsvorrichtung eingesetzt werden. Die Verriegelungseinrichtung soll auch durch ihre Formgebung die Schocksicherheit der gesamten Anordnung erhöhen.The invention has for its object to prevent the simultaneous switching on of two switching elements, such as contactors, from the common zero position or the switching on of the second contactor when the first contactor is switched on with a simple mechanical locking device. The width of the contactors should remain unchanged and contactors should be arranged directly next to each other. Furthermore, the switching elements should both with unchanged construction Auxiliary switch or other accessories and locking device as well as without auxiliary switch or without auxiliary switch but with locking device can be used. The shape of the locking device is also intended to increase the shock resistance of the entire arrangement.

Die vorliegende Erfindung bezieht sich auf eine Sperrvorrichtung zur mechanischen Verriegelung eines von zwei Schaltorganen gemäß dem Oberbegriff des Ansprüches 1, die von einer Vorrichtung entsprechend der aus der DE-PS 29 51 356 bekannten Vorrichtung ausgeht. Die der Erfindung zugrunde liegende Aufgabe wird dadurch gelöst, daß das Verriegelungsorgan als Winkelhebel ausgebildet und um eine am Gehäuseunterteil ortsfest ausgebildete im Bereich der Winkelecke in eine Lagerbohrung des Winkelhebels eingreifende Achse drehbar ist, und ein Winkelarm des Winkelhebels mit einem der beiden Schieber gelenkig mit ortsveränderlicher, zur ortsfesten Drehachse des Winkelhebels achsparalleler Achse verbunden ist und der andere Winkelarm des Winkelhebels durch Bewegen des mit dem Winkelhebel gelenkig verbundenen Schiebers in die der Einschaltstellung bzw. Ausschaltstellung des angekoppelten Schaltorganes entsprechenden Endlagen in eine den Bewegungsfreiraum des zweiten Schiebers zum Einschalten des mit dem zweiten Schieber gekoppelten Schaltorganes blockierende Position bzw. in eine den für das Einschalten des mit dem zweiten Schieber gekoppelten Schaltorganes notwendigen Bewegungsfreiraum freigebende Position bewegbar ist, wobei in Einschaltstellung des zweiten Schiebers die Rückdrehbewegung des Winkelhebels um die ortsfeste Achse blockiert ist und der gelenkig mit dem Winkelhebel verbundene Schieber in der Ausschaltstellung arretiert ist.The present invention relates to a locking device for mechanical locking of one of two switching elements according to the preamble of claim 1, which is based on a device according to the device known from DE-PS 29 51 356. The object on which the invention is based is achieved in that the locking member is designed as an angle lever and is rotatable about an axis engaging in a fixed manner on the lower housing part in the area of the angle corner in a bearing bore of the angle lever, and an angle arm of the angle lever is articulated with one of the two slides with a variable position , is connected to the fixed axis of rotation of the angle lever, axis-parallel axis and the other angle arm of the angle lever by moving the slide articulated with the angle lever into the end positions corresponding to the switch-on position or switch-off position of the coupled switching element in one of the freedom of movement of the second slide for switching on the second slide Slider-coupled switching element blocking position or in a position releasing the movement space necessary for switching on the switching element coupled to the second slide can be moved, de in the switched-on position s second slide, the return movement of the angle lever around the fixed axis is blocked and the slide articulated with the angle lever is locked in the off position.

Vorteilhaft ist es, die beiden den zwei Schaltorganen, insbesondere Schützen, zugeordneten Schieber gleich auszubilden und in einer Ebene mit dem Winkelhebel, jedoch um 180° gegeneinander versetzt, in dem Gehäuse anzuordnen. Der Winkelhebel ist derart zwischen den beiden Schiebern angeordnet ist, daß diese mit je einem Endbereich eines der Winkelarme des Winkelhebels zusammenwirken können. Die Koppelorgane zu den gegeneinander zu verriegelnden Schaltorganen, wie Schütz und Hilfsschalter, sind bevorzugt auf der Ober- und Unterseite der Schieber angeformt und erstrecken sich senkrecht zur Bewegungsrichtung der Schieber in dem Gehäuse und achsparallel zur Drehachse des Winkelhebels. Sie sind als Zapfen bzw. Aufnahmezapfen ausgebildet, wobei am Gehäuseunterteil und -oberteil entsprechende Ausnehmungen für den Durchgriff der Koppelorgane ausgebildet sind. An den oberseitigen Ausnehmungen des Gehäuses ist an der Stellung der Koppelorgange die Schaltstellung der Schaltorgange EIN, AUS ersichtlich.It is advantageous to design the two sliders assigned to the two switching elements, in particular contactors, in the same manner and in one plane with the angle lever, but by 180 ° offset from each other to be arranged in the housing. The angle lever is arranged between the two slides in such a way that they can cooperate with one end region of one of the angle arms of the angle lever. The coupling elements to the switching elements to be locked against each other, such as contactor and auxiliary switch, are preferably formed on the top and bottom of the slide and extend perpendicular to the direction of movement of the slide in the housing and parallel to the axis of rotation of the angle lever. They are designed as pins or receiving pins, with corresponding recesses for the passage of the coupling members being formed on the lower and upper parts of the housing. On the recesses on the top of the housing, the switching position of the switching elements ON, OFF can be seen at the position of the coupling elements.

Die erfindungsgemäße mechanische in einem Gehäuse untergebrachte Sperrvorrichtung ist auf zwei direkt nebeneinander angeordneten Schaltorganen, insbesondere Schützen montierbar. Hierbei ist die Montagerichtung der Schütze gleich. Dadurch wird bei auf Montageschienen montierten Schützen kein zusätzlicher Raum auf der Montageschiene benötigt.The mechanical locking device according to the invention housed in a housing can be mounted on two switching elements, in particular contactors, arranged directly next to one another. The direction of installation of the contactors is the same. As a result, no additional space is required on the mounting rail for contactors mounted on mounting rails.

Um den universellen Einsatz der Schütze mit und ohne Hilfsschalter ohne konstruktive oder bauliche Änderungen zu ermöglichen, ist des weiteren vorgesehen, daß die Oberseite des Gehäuses der Sperrvorrichtung so strukturiert ist wie die Oberseite der Schutze, d.h. der beiden nebeneinander angeordneten miteinander zu verriegelnden Schütze. Damit ist es möglich, daß Hilfsschalter oder sonstiges Zubehör ohne weitere Hilfsmittel auf der Sperrvorrichtung angeordnet werden können. Die Erfindung ermöglicht, die Sperrvorrichtung zwischen Hilfsschalter und Schaltorganen, wie Schützen, anzuordnen. Um die richtige Zuordnung von Hilfsschalter und Schütz auch bei Verwendung der Sperrvorrichtung zu gewährleisten, ist des weiteren vorgesehen, daß die Sperrvorrichtung mit Gehäuse in die Codiervorrichtung des Schaltorganges mit einbezogen wird, indem über Codierstifte, die von dem Schaltorgan ausgehend durch das Gehäuse der Sperrvorrichtung geführt sind, die Codierung auf die Hilfsschalter, die auf die Sperrvorrichtung aufgesetzt werden, übertragbar ist. Bevorzugt ist das Gehäuse mit Codierstiften versehen, die beweglich gelagert sind, die unterseitig aus dem Gehäuse herausragen und durch Ausnehmungen im Gehäuseoberteil von oben zugänglich sind und die die Codierung von den Schaltorganen übernehmen und z.B. auf die Hilfsschalter übertragen.In order to enable the universal use of the contactors with and without auxiliary switches without any design or structural changes, it is further provided that the top of the housing of the locking device is structured like the top of the protections, ie the two contactors to be locked next to one another. This makes it possible for auxiliary switches or other accessories to be arranged on the locking device without further aids. The invention enables the locking device to be arranged between auxiliary switches and switching elements, such as contactors. In order to ensure the correct assignment of auxiliary switch and contactor even when using the locking device, it is further provided that the locking device with housing is included in the coding device of the switching mechanism by using coding pins which lead from the switching element through the housing of the locking device are the Coding is transferable to the auxiliary switches that are placed on the locking device. The housing is preferably provided with coding pins which are movably mounted, which protrude from the underside of the housing and are accessible from above through recesses in the upper part of the housing and which take over the coding from the switching elements and transmit them, for example, to the auxiliary switches.

Von Vorteil ist es, wenn das Gehäuse der Sperrvorrichtung so strukturiert ist, daß es an zwei nebeneinander geordneten Schützoberflächen anpaßbar ist, dem eine sich in Hintereinanderschaltung angeordnete wiederholende Gehäusestrukturierung entspricht. Das Gehäuse ist dann also nicht symmetrisch ausgebildet, sondern enthält zwei etwa gleichgestaltete Teile, die gleichsinnig aneinandergefügt sind; das gilt für das Gehäuseunterteil ebenso wie für das Gehäuseoberteil.It is advantageous if the housing of the locking device is structured in such a way that it can be adapted to two contactor surfaces arranged next to one another, which corresponds to a repetitive housing structure arranged in series. The housing is then not symmetrical, but contains two roughly identical parts that are joined together in the same direction; this applies to the lower part of the housing as well as to the upper part of the housing.

Um eine sichere und maßgenaue Montage des Gehäuses mit der Sperrvorrichtung auf den Schützen zu ermöglichen, weist das Gehäuse auf der Unterseite sowohl Führungsstifte als auch Schnapphaken auf, die in entsprechende Ausnehmungen auf der Schützoberseite eingeführt bzw. einrasten. Entsprechend ist auch die Oberseite des Gehäuses mit Ausnehmungen ausgerüstet, so daß Hilfsschalter oder anderes Zubehör mit entsprechenden Führungsstiften und Schnapphaken entweder auf das Gehäuse oder direkt auf das Schutz aufsetzbar und einrastbar sind.In order to enable safe and accurate mounting of the housing with the locking device on the contactors, the housing has both guide pins and snap hooks on the underside, which are inserted or latched into corresponding recesses on the upper side of the contactor. Accordingly, the top of the housing is equipped with recesses so that auxiliary switches or other accessories with corresponding guide pins and snap hooks can either be placed on the housing or directly on the protection and snapped into place.

Definierte Schaltwege zum Ein- und Ausschalten der angekoppelten Schaltorgane können durch eine entsprechende Führung der Schieber in dem Gehäuse der Sperrvorrichtung erreicht werden. Insbesondere ist vorgesehen, daß die Schieber jeweils in einer Ausnehmung des Gehäuseunterteiles zum Ausführen der hin- und hergehenden Schaltbewegung für definierte Schaltwege zwangsgeführt sind. Während der eine Schieber durch die gelenkige Verbindung mit dem Winkelhebel eine weitere Führung und Lagesicherung erfährt, ist in weiterer Ausgestaltung der Erfindung vorgesehen, daß für den nicht am Winkelhebel angelenkten Schieber im Gehäuseinneren eine Führungsnut zwischen an dem Gehäuseunterteil und/oder -oberteil angeformten Führungsleisten oder dergleichen zusätzlich ausgebildet ist, in der der Schieber in Schaltrichtung hin- und herbewegbar ist.Defined switching paths for switching the coupled switching elements on and off can be achieved by appropriately guiding the slide in the housing of the locking device. In particular, it is provided that the slides are each positively guided in a recess in the lower housing part for executing the reciprocating switching movement for defined switching paths. While the one slider is further guided and secured by the articulated connection with the angle lever, in a further embodiment of the invention it is provided that for the not Angle lever articulated slide inside the housing, a guide groove is formed between guide rails or the like formed on the lower and / or upper part of the housing, in which the slide can be moved back and forth in the switching direction.

Die Erfindung wird nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispieles näher erläutert. Es zeigen

Figur 1
Draufsicht auf Gehäuseunterteil
Figur 2
Unteransicht auf Gehäuseunterteil
Figur 3
Vorderansicht, teilweise geschnitten, nach Schnitt in Fig. 1
Figur 4
Draufsicht auf Gehäuseoberteil
Figur 5
Unteransicht auf Gehäuseoberteil
Figur 6
Vorderansicht auf Gehäuseoberteil
Figur 7
Draufsicht auf einen Schieber
Figur 8
Unteransicht des Schiebers
Figur 9
Vorderansicht des Schiebers
Figur 10
Draufsicht auf den Winkelhebel
Figur 11
Unteransicht des Winkelhebels
Figur 12
Vorderansicht des Winkelhebels
Figur 13
Draufsicht des Codierstiftes
Figur 14
Vorderansicht des Codierstiftes
Figur 15
Funktionsdarstellung "Aus-Stellung"
Figur 16
Funktionsdarstellung "erstes Schütz Ein - zweites Schütz Aus verriegelt"
Figur 17
Funktionsdarstellung "erstes Schütz Aus verriegelt - zweites Schütz Ein"
Figur 18
Vergrößerte Einzelheit aus Figur 15
Figur 19
Schnitt AA in Figur 18
Figur 20
Schnitt nach BB in Figur 18
Figur 21
Montage-Schema mit Schützen.
The invention is explained in more detail below with reference to an embodiment shown in the drawings. Show it
Figure 1
Top view of the lower part of the housing
Figure 2
Bottom view of the lower part of the housing
Figure 3
Front view, partially sectioned, after sectioning in FIG. 1
Figure 4
Top view of the housing top
Figure 5
Bottom view of the upper part of the housing
Figure 6
Front view on top of housing
Figure 7
Top view of a slider
Figure 8
Bottom view of the slider
Figure 9
Front view of the slider
Figure 10
Top view of the bell crank
Figure 11
Bottom view of the angle lever
Figure 12
Front view of the bell crank
Figure 13
Top view of the coding pin
Figure 14
Front view of the coding pin
Figure 15
Functional representation "off position"
Figure 16
Functional representation "first contactor on - second contactor off locked"
Figure 17
Functional representation "first contactor off locked - second contactor on"
Figure 18
Enlarged detail from Figure 15
Figure 19
Section AA in Figure 18
Figure 20
Section according to BB in Figure 18
Figure 21
Assembly scheme with contactors.

Figur 21 zeigt schematisch die Anordnung der Sperrvorrichtung 3 auf zwei direkt nebeneinander ohne Zwischenraum und Zwischenglieder angeordneten Schützen 1, 2 als Schaltorganen, die verhindern soll, daß das zweite Schütz schaltet, wenn das erste in Einschaltstellung ist. Die Sperrvorrichtung 3 ist so gestaltet, daß auf diese, wie gestrichelt angedeutet, in Pfeilrichtung noch ein Hilfsschalter 4 aufgesetzt und in Eingriff gebracht werden kann, natürlich auch für das zweite Schütz. Die Sperrvorrichtung 3 ist zwischen Zubehör, wie Hilfsschaltern und Schützen einbaubar. Durch eine Strukturierung der Oberseite der Sperrvorrichtung 3, d.h. des Gehäuses, analog zu der Oberfläche der Schütze 1 und 2, ist es möglich, Zubehör, wie Hilfsschalter 4, universell mit oder ohne Verriegelungseinrichtung auf den Schützen zu montieren. Die nur schematisch an einer Stelle angedeuteten gestrichelt gezeichneten Codierstifte 500, die im Gehäuse der Sperrvorrichtung 3 geführt sind, gewährleisten die richtige Zuordnung der Hilfsschalter zu den Schützen, da sie durch die Sperrvorrichtung bis in die Schaltorgane geführt sind und die Codierung von dem Schütz übernehmen und auf im Hilfsschalter befindliche Gegenstücke übertragen. Auch die Schütze sind universell verwendbar, mit und ohne Sperrvorrichtung, da sie in der Einbaubreite bei Einsatz der Sperrvorrichtung nicht verändert werden.FIG. 21 shows schematically the arrangement of the blocking device 3 on two contactors 1, 2 arranged directly next to one another without intermediate space and intermediate elements as switching elements, which is intended to prevent the second contactor from switching when the first is in the switched-on position. The locking device 3 is designed such that, as indicated by dashed lines, an auxiliary switch 4 can be placed and engaged in the direction of the arrow, of course also for the second contactor. The locking device 3 can be installed between accessories such as auxiliary switches and contactors. By structuring the top of the blocking device 3, ie the housing, analogously to the surface of the contactors 1 and 2, it is possible to mount accessories, such as auxiliary switches 4, universally with or without a locking device on the contactors. The coding pins 500, which are only indicated schematically at one point and are guided in the housing of the blocking device 3, ensure the correct assignment of the auxiliary switches to the contactors, since they are guided through the blocking device into the switching elements and take over the coding from the contactor and transfer to counterparts located in the auxiliary switch. The contactors can also be used universally, with and without a locking device, as they are in the installation width cannot be changed when using the locking device.

Die Sperrvorrichtung 3 weist ein aus Gehäuseunterteil 100 und Gehäuseoberteil 200 zusammengesetztes Gehäuse auf, in dem die die mechanische Verriegelung bewirkenden Elemente, siehe Figur 15, nämlich zwei Schieber 300, 300a und als Verriegelungsorgan der Winkelhebel 400, untergebracht sind.The locking device 3 has a housing composed of the lower housing part 100 and the upper housing part 200, in which the elements which bring about the mechanical locking, see FIG. 15, namely two sliders 300, 300a and the locking element of the angle lever 400, are accommodated.

In der Figur 15 ist in Aufsicht in das Gehäuseunterteil 100 die Lage und Zuordnung der Schieber 300, 300a und des Winkelhebels 400 als Verriegelungsorgan zwischen den beiden Schiebern ersichtlich. Das Gehäuse ist zum Anschluß an zwei Schaltorgane in entsprechender Wiederholung von Formgebungen ausgebildet, wobei der Schieber 300 mit dem Schütz 1 und der Schieber 300a mit dem Schütz 2 zusammenwirken. Der Schieber 300 wird mit dem Schütz 1 gemäß Figur 21 gekoppelt, der Schieber 300a mit dem Schütz 2 gemäß Figur 21. Der Winkelhebel 400 ist um die ortsfest am Gehäuseunterteil angeordnete Achse 123 drehbar, siehe Pfeil S3. Der Schieber 300 ist mit einem Winkelarm des Winkelhebels 400 gelenkig über die Achse 301 verbunden, die einen beweglichen Drehpunkt für den Winkelhebel 400 infolge Schieberbewegung des Schiebers 300 in Pfeilrichtung S1, S2 bildet. Der Schieber 300a ist gegenüber dem Schieber 300 jedoch um 180° gedreht und auf der gegenüberliegenden Seite des Winkelhebels in dem Gehäuseunterteil lose angeordnet. Die Bewegungsmöglichkeiten des Schiebers 300a werden jedoch durch Führungen an der Innenseite des Gehäuses auf die Hin- und Herbewegung in Zwangsführungen in Schaltrichtung S1, S2 eingeschränkt. Des weiteren ist die Länge des Schaltweges des Schiebers 300a in beiden Richtungen begrenzt, einerseits durch den Winkelhebel, andererseits durch den Mitnahmeweg des angekoppelten Zapfens des Schützes. Insbesondere ist der Schieber 300a in einer zwischen der Führungsleiste 122 und dem Sockel 121a gebildeten Führungsnut 130 gelagert und in Pfeilrichtung S1, S2 verschiebbar.In FIG. 15, the position and assignment of the slides 300, 300a and the angle lever 400 as a locking element between the two slides can be seen in a view of the lower housing part 100. The housing is designed for connection to two switching elements in a corresponding repetition of shapes, the slide 300 cooperating with the contactor 1 and the slide 300a with the contactor 2. The slide 300 is coupled to the contactor 1 according to FIG. 21, the slide 300a to the contactor 2 according to FIG. 21. The angle lever 400 can be rotated about the axis 123 which is fixedly arranged on the lower housing part, see arrow S3. The slider 300 is connected in an articulated manner to an angle arm of the angle lever 400 via the axis 301, which forms a movable pivot point for the angle lever 400 as a result of the slide movement of the slider 300 in the direction of the arrow S1, S2. However, the slider 300a is rotated by 180 ° with respect to the slider 300 and is loosely arranged on the opposite side of the angle lever in the lower housing part. However, the possibilities of movement of the slide 300a are limited by guides on the inside of the housing to the back and forth movement in positive guides in the switching direction S1, S2. Furthermore, the length of the switching path of the slide 300a is limited in both directions, on the one hand by the angle lever, and on the other hand by the driving path of the coupled pin of the contactor. In particular, the slide 300a is mounted in a guide groove 130 formed between the guide strip 122 and the base 121a and can be displaced in the direction of the arrow S1, S2.

Die Elemente 300, 400, 300a sind so in dem Gehäuseunterteil angeordnet, daß die im Gehäuseunterteil ausgebildeten Einstecklöcher 116, 116a für die Codierstifte auch bei Verschieben der Lage der Elemente frei bleiben.The elements 300, 400, 300a are thus in the lower housing part arranged that the insertion holes 116, 116a formed in the lower housing part for the coding pins remain free even when the position of the elements is shifted.

Eine vorteilhafte Ausgestaltung des Gehäuseunterteiles 100 für die Aufnahme der beweglichen Elemente der Sperrvorrichtung ist in den Figuren 1 bis 3 dargestellt. Da das Gehäuse 100 zum Aufsetzen auf zwei gleiche Schütze dient, zeigt es auch in seinem grundsätzlichen Aufbau zwei gleiche an der Grenzlinie G aneinandergesetzte Hälften, die in ihren Funktionsbereichen bezüglich des Anschlusses an die Schütze oberseitig und unterseitig angepaßt ausgebildet sind. Für die formschlüssige Rastverriegelung des Gehäuseunterteiles 100 mit der Oberseite der Schütze sind an der Gehäuseunterseite 110, siehe Figur 2, jeweils drei Paßzapfen 101, 102, 103 für das erste Schütz und Paßzapfen 101a, 102a, 103a für das zweite Schütz in Dreieckanordnung ausgebildet. An den Gehäuseaußenwänden sind des weiteren Randausnehmungen 106, 107 bzw. 106a, 107a ausgebildet und paarweise Schnapphaken 104, 105 bzw. 104a, 105a, die an der Gehäuseunterseite überstehen, zum Einrasten in entsprechende Hinterschneidungen an den Schützen vorgesehen. Bei der umlaufenden Gehäusewand 112 sind an der Oberseite die Bereiche 126, 127 bzw. 126a, 127a und 113 zum Auflegen des Gehäuseoberteiles 200 gemäß Figuren 4 bis 6 bündig in einer Ebene ausgebildet und gegenüber den übrigen Randbereichen abgesetzt. An den überstehenden Randteilen 118 bzw. 119, 120 sind paarweise einander zugeordnet Paßlöcher 124, 125 bzw. 124a, 125a ausgebildet, die der Aufnahme entsprechender Paßzapfen an der Unterseite eines Hilfsschalters 4, siehe Figur 21, dienen und die in analoger Weise auf der Oberseite der Schütze 1 und 2 zum Einstecken der Paßzapfen 101, 103 bzw. 101a, 103a an der Unterseite des Gehäuses dienen.An advantageous embodiment of the lower housing part 100 for receiving the movable elements of the locking device is shown in Figures 1 to 3. Since the housing 100 serves to be placed on two identical contactors, it also shows in its basic construction two identical halves placed against one another at the boundary line G, the functional areas of which are designed to match the connection to the contactors on the top and bottom. For the positive locking locking of the lower housing part 100 with the top of the contactors, three fitting pins 101, 102, 103 for the first contactor and fitting pins 101a, 102a, 103a for the second contactor are formed in a triangular arrangement on the housing underside 110, see FIG. Edge recesses 106, 107 and 106a, 107a are also formed on the outer walls of the housing and snap hooks 104, 105 and 104a, 105a, which protrude from the underside of the housing, are provided in pairs for snapping into corresponding undercuts on the shooters. In the circumferential housing wall 112, the areas 126, 127 and 126a, 127a and 113 for placing the upper housing part 200 according to FIGS. 4 to 6 are formed flush in one plane and offset from the other edge areas. On the protruding edge parts 118 and 119, 120, matching holes 124, 125 and 124a, 125a are assigned to each other in pairs, which serve to receive corresponding fitting pins on the underside of an auxiliary switch 4, see FIG. 21, and which are analogously on the top the contactors 1 and 2 serve to insert the fitting pins 101, 103 and 101a, 103a on the underside of the housing.

Das Gehäuseunterteil,weist in jeder Hälfte einen insbesondere rechteckigen Durchbruch 117 bzw. 117a für die Kopplungsorgane der Sperreinrichtung zu den Schützen sowie Einstecklöcher 116 bzw. 116a für die Codierstifte 500, siehe schematische Andeutung in Figur 3, auf. Zusätzlich ist nun ein Gehäuseteil mit der den festen Drehpunkt des Winkelhebels bildenden Achse 123 in Gestalt eines am Gehäuseboden auf der Innenseite 111 angeformten Achszapfens gerüstet. Um eine einwandfreie Führung des nicht mit dem Winkelhebel verbundenen Schiebers zu erreichen, ist des weiteren dieser Gehäusebereich mit der Führungsnut 130 für den am Gehäuseboden aufliegenden Schieber ausgerüstet, die beispielsweise zwischen der am Gehäuseboden angeformten Führungsleiste 122 und einer Sockelwand des die Einstecklöcher 116a für die Codierstifte umgebenden Sockels 121a gebildet ist.The lower part of the housing has in each half a particularly rectangular opening 117 and 117a for the coupling elements of the locking device to the contactors, and insertion holes 116 and 116a for the coding pins 500, see schematic indication in FIG. 3. In addition, there is now a housing part equipped with the axis 123 forming the fixed pivot point of the angle lever in the form of an axle journal formed on the inside of the housing base 111. In order to ensure proper guidance of the slider not connected to the angle lever, this housing area is further equipped with the guide groove 130 for the slider resting on the housing bottom, which, for example, between the guide bar 122 formed on the housing bottom and a base wall of the insertion holes 116a for the coding pins surrounding base 121a is formed.

Das Gehäuseoberteil zum Verschließen des Gehäuseunterteiles ist beispielhaft in den Figuren 4 bis 6 dargestellt. Das Gehäuseoberteil 200 weist einen umlaufenden mit Rastnuten 205, 206 und Vorsprüngen 203, 204 ausgebildetem Rand auf, mit dem es formschlüssig und bündig mit der Oberseite des Gehäuseunterteiles abschließend auf dieses aufgesetzt werden kann. Auch im Gehäuseoberteil wiederholt sich die Ausbildung der den beiden Schützen zugordneten Bereiche an der Grenzlinie G . Auf der Unterseite 202 sind paarweise einander an den Rändern gegenüberliegend vorstehende Raststege 210, 211, 212 ausgebildet, die ein formschlüssiges Einrasten des Gehäuseoberteils am Gehäuseunterteil ermöglichen. Weitere paarweise angeordnete Einstecklöcher 213, 214 bzw. 213a, 214a sind im Gehäuseoberteil vorgesehen. Für das Eingreifen der Kopplungsorgane der Hilfsschalter in die Zapfen 302, 302a der Schieber ist jeweils eine Ausnehmung 215 bzw. 215a in ausreichender Größe vorgesehen, die auch eine entsprechende Bewegung des Schiebers bzw. Zapfens gestattet. Durch diese Ausnehmungen 215 bzw. 215a ist auch an der Stellung des Zapfens 302 bzw. 302a die Schaltstellung EIN I oder AUS 0 der Schütze 1, 2 erkennbar angezeigt, siehe gestrichelte Andeutung in Figur 4. Des weiteren weist das Gehäuseoberteil 200 Öffnungen 216 bzw. 216a zum Einführen von Codierstiften auf. Des weiteren sind Nocken 207, 207a zum Aufklipsen von Schildträgern oder dergleichen auf jeder Gehäuseoberteilhälfte angeformt.The upper housing part for closing the lower housing part is shown by way of example in FIGS. 4 to 6. The upper housing part 200 has a peripheral edge formed with latching grooves 205, 206 and projections 203, 204, with which it can be finally placed onto the lower housing part in a form-fitting and flush manner with the upper side thereof. The formation of the areas assigned to the two contactors at the boundary line G is also repeated in the upper housing part. On the underside 202, locking webs 210, 211, 212 projecting opposite one another at the edges are formed in pairs, which enable a positive locking of the upper housing part on the lower housing part. Further pairs of insertion holes 213, 214 and 213a, 214a are provided in the upper part of the housing. For the engagement of the coupling members of the auxiliary switches in the pins 302, 302a of the slide, a recess 215 or 215a is provided in a sufficient size, which also allows a corresponding movement of the slide or pin. Through these recesses 215 and 215a, the switch position ON I or OFF 0 of the contactors 1, 2 is also indicated at the position of the pin 302 or 302a, see dashed lines in FIG. 4. Furthermore, the upper housing part 200 has openings 216 or 216a for inserting coding pins. Furthermore, cams 207, 207a for clipping on sign carriers or the like are formed on each upper housing part half.

Auf der Unterseite 202 des Gehäuseoberteiles sind die Ausnehmungen 215, 215a für das Durchstecken der Kopplungsorgane beidseitig mit parallel zur Bewegungsrichtung der Schieber sich erstreckenden Führungsstegen 217, 218 bzw. 217a, 218a umgeben. An der Unterseite 202 des Gehäuseoberteiles sind im mittleren Bereich zusätzliche Führungsrippen 220, 219 angeformt, die der Führung der Schieber dienen.On the underside 202 of the upper housing part are the Recesses 215, 215a for inserting the coupling members are surrounded on both sides with guide webs 217, 218 and 217a, 218a which extend parallel to the direction of movement of the slide. On the underside 202 of the upper housing part, additional guide ribs 220, 219 are formed in the central area, which serve to guide the slide.

Die beiden je einem der Schütze zugeordneten Schieber 300 der Sperrvorrichtung, siehe Figur 15, sind hier aus fertigungstechnischen Gründen gleich ausgebildet. Eine vorteilhafte Ausgestaltung des Betätigungsschiebers 300 ist in den Figuren 7 bis 9 in drei Ansichten dargestellt. Der plattenförmige Schieber 300 ist auf seiner dem Gehäuseunterteil, d.h. Bodeninnenseite 111, zugewandten und aufliegenden Seite 306 mit einem senkrecht zur Schiebererstreckung vorstehenden Aufnahmezapfen 303 mit Paßloch 304 für den Zapfen des anzukoppelnden Schützes ausgebildet. Auf der gegenüberliegenden Seite 305 des Schiebers ist etwa dem Aufnahmezapfen 303 gegenüberliegend sich erstreckend der Zapfen 302 zum Eingriff in den Hilfsschalter ausgebildet. Hierdurch ist eine Schaltstellungsanzeige möglich. Auf dieser Seite des Schiebers 300 ist auch der Achszapfen 301 zur Führung des Winkelhebels ausgebildet, wobei der Achszapfen an dem einen Ende des Schiebers, das bevorzugt auch verjüngt durch die Ausbuchtung 308 ausgebildet ist, vorgesehen ist, während am anderen Endbereich des Schiebers die beiden einander gegenüberliegenden Zapfen bzw. Aufnahmezapfen angeordnet sind. Das Ende 307 des Schiebers, in dessen Bereich der Achszapfen 301 angeformt ist, ist in seiner Kontur leicht konkav ausgebildet.The two sliders 300 of the locking device, each associated with one of the contactors, see FIG. 15, are of identical design here for manufacturing reasons. An advantageous embodiment of the actuating slide 300 is shown in FIGS. 7 to 9 in three views. The plate-shaped slide 300 is on its lower part of the housing, i.e. Bottom inner side 111, facing and lying on side 306 with a receiving pin 303 projecting perpendicular to the slide extension with a fitting hole 304 for the pin of the contactor to be coupled. On the opposite side 305 of the slide, the pin 302 is formed so as to extend approximately opposite the receiving pin 303 for engagement in the auxiliary switch. This enables a switch position indicator. The axle pin 301 for guiding the angle lever is also formed on this side of the slide 300, the axle pin being provided at one end of the slide, which is preferably also tapered by the bulge 308, while at the other end region of the slide the two are facing each other opposite pins or receiving pins are arranged. The end 307 of the slider, in the area of which the journal 301 is formed, is slightly concave in its contour.

Eine Ausführung des Winkelhebels 400 ist in den Figuren 10 bis 12 dargestellt. Der Winkelhebel 400 weist im Winkeleckbereich die durchgehende Lagerbohrung 401 zum Aufsetzen auf den am Gehäuseunterteil angeformten Achszapfen 123 auf. Der eine Winkelhebel 403 erstreckt sich mit einer leicht konvex ausgebildeten Stirnseite 406 in Richtung auf den lose eingesetzten Schieber 300a. Der andere Winkelarm 404 erstreckt sich etwa rechtwinkling hierzu und ist in seinem Endbereich mit der Lagerbohrung 402 für die Aufnahme des Achszapfens 301 des Schiebers 300 ausgebildet. Hierbei ist der Winkelhebel zur Aufnahme des Achszapfens des Schiebers in dem den Schieber überdeckenden Bereich unterseitig mit der Ausnehmung 405 ausgebildet, so daß der Winkelhebel planparallel auch im Bereich des zweiten Armes 403 zum Gehäuseboden und senkrecht zu den Achsen 123, 301 gelagert werden kann und ein Verkanten gegenüber den Drehachsen vermieden ist.An embodiment of the angle lever 400 is shown in FIGS. 10 to 12. The angle lever 400 has the continuous bearing bore 401 in the corner corner region for placement on the journal 123 formed on the lower housing part. One angle lever 403 extends with a slightly convex end face 406 in the direction of the loosely inserted slide 300a. The other angle arm 404 extends approximately at right angles to this and is formed in its end region with the bearing bore 402 for receiving the journal 301 of the slide 300. Here, the angle lever for receiving the journal of the slide in the area covering the slide is formed on the underside with the recess 405, so that the angle lever can also be mounted in a plane-parallel manner in the area of the second arm 403 to the housing base and perpendicular to the axes 123, 301 Tilting with respect to the axes of rotation is avoided.

Die in das Gehäuseunterteil 100 gemäß Figur 15 eingesetzten beweglichen Elemente, nämlich die beiden Schieber 300 und 300a werden in dem Gehäuseunterteil in den Ausnehmungen 117 bzw. 117a mit den darin geführten Aufnahmezapfen 303 in Verschieberichtung der Schieber geführt. Auf diese Weise sind die Schaltwege der Schieber 300 und 300a vorgegeben und die Bewegungsmöglichkeit wird durch den zwischengeschalteten Winkelhebel 400, der um die feste Drehachse 123 bewegbar ist, und mit dem Schieber 300 gelenkig verbunden ist und gegenüber dem zweiten Schieber 300a definierte Positionen einnimmt, bestimmt.The movable elements used in the lower housing part 100 according to FIG. 15, namely the two sliders 300 and 300a, are guided in the lower housing part in the recesses 117 and 117a with the receiving pins 303 guided therein in the direction of displacement of the slides. In this way, the switching paths of the sliders 300 and 300a are predetermined and the possibility of movement is determined by the interposed angle lever 400, which is movable about the fixed axis of rotation 123 and is articulated to the slider 300 and assumes defined positions with respect to the second slider 300a .

Beim Schalten eines Schützes wird der entsprechende Schieber über den Zapfen als Kopplungsorgan mitgenommen und das andere Schütz durch den anderen Schieber blockiert.When switching a contactor, the corresponding slide is taken over the pin as a coupling element and the other contactor is blocked by the other slide.

Ausgehend von der Anordnung und Zuordnung der beweglichen Teile gemäß Figur 15 befinden sich die Schieber in der dort gezeigten Stellung für beide Schütze, d.h. beide Schieber 300 und 300a, in Ausschaltstellung. Beim Schalten des Schützes 1 wird der Schieber 300 gemäß Figur 15 in Pfeilrichtung S1 über den am Mitnahmezapfen 303 angekoppelten Zapfen 10 des Schützes 1, siehe Figur 19, in die Einschaltstellung "Ein (1)", siehe Figur 16, bewegt. Gleichzeitig mit der Bewegung des Schiebers 300 in Pfeilrichtung S1 nimmt der Schieber über den Achszapfen 300 den angelenkten Winkelhebel 400 mit, so daß dessen freier Winkelarm 403 nach innen vor das Ende 307a des zweiten Schiebers 300a schwenkt und den Bewegungsfreiraum vor dem zweiten Schieber 300a blockiert, siehe Figur 16. Die einander zugekehrten Enden 406 des Winkelhebels 403 und des Schieberendes 307a sind konvex bzw. konkav geformt, um aneinander vorbeigleiten zu können. In dem in Figur 16 dargestellten eingeschalteten Zustand des Schützes 1 ist gleichzeitig der an das zweite Schütz gekoppelte Schieber 300a durch den eingeschwenkten Winkelarm 403 in der Ausschaltstellung 2 blockiert, d.h. mechanisch verriegelt. Erst wenn das Schütz 1 ausgeschaltet und dabei der Zapfen des Schützes 1 den Schieber 300 in Pfeilrichtung S2, siehe Figur 15, wieder in die "Aus"-Stellung (1) des Schützes 1 zurückstellt, wird der Winkelhebel 400 aus der Blockierstellung gemäß Figur 16 wieder ausgeschwenkt. Das bedeutet, daß das Schütz 2 entriegelt wird, da der Schieber 300a nunmehr wieder in Pfeilrichtung S1 von der "Aus"-Stellung (2) in die "Ein"-Stellung (2), siehe Figur 17, bewegt werden kann. Diese Bewegung des Schiebers 300a in Pfeilrichtung S1 erfolgt durch Einschalten des Schützes 2 und Mitnahme des Schiebers 300a durch den angekoppelten Zapfen des Schützes 2 am Aufnahmezapfen 303a des Schiebers 300a.Starting from the arrangement and assignment of the moving parts according to FIG. 15, the slides are in the position shown there for both contactors, ie both sliders 300 and 300a, in the switched-off position. When the contactor 1 is switched, the slide 300 according to FIG. 15 is moved in the direction of arrow S1 via the pin 10 of the contactor 1 coupled to the driving pin 303, see FIG. 19, into the switch-on position "ON (1)", see FIG. 16. Simultaneously with the movement of the slide 300 in the direction of arrow S1, the slide takes the articulated angle lever 400 along with it, so that its free angle arm 403 swings inward in front of the end 307a of the second slide 300a and the freedom of movement in front of the second slide 300a blocked, see FIG. 16. The mutually facing ends 406 of the angle lever 403 and the slide end 307a are convex or concave in order to be able to slide past one another. In the switched-on state of the contactor 1 shown in FIG. 16, the slide 300a coupled to the second contactor is at the same time blocked by the pivoted-in angle arm 403 in the off position 2, ie mechanically locked. Only when the contactor 1 is switched off and the pin of the contactor 1 returns the slide 300 in the direction of arrow S2, see FIG. 15, to the "off" position (1) of the contactor 1, does the angle lever 400 move out of the blocking position according to FIG. 16 swung out again. This means that the contactor 2 is unlocked, since the slide 300a can now be moved again in the direction of arrow S1 from the "off" position (2) to the "on" position (2), see FIG. 17. This movement of the slide 300a in the direction of arrow S1 takes place by switching on the contactor 2 and driving the slide 300a by the coupled pin of the contactor 2 on the receiving pin 303a of the slide 300a.

Nachdem der Schieber 300a in Pfeilrichtung S1 in die Einschaltstellung des Schützes gemäß Figur 17 gerückt ist, ist er gleichzeitig an der Innenkante 407 des Winkelarms 403 eingerastet, so daß er den Bewegungsfreiraum des Winkelhebels 400 durch das Gegenlager am Sockel 121 am Gehäuseboden blockiert, wodurch eine Schwenkbewegung S3 des Winkelhebels 400 und damit eine entsprechende Bewegung des Schiebers 300 blockiert ist. Erst wenn der Schieber 300a wieder in Pfeilrichtung S2 von der Einschaltstellung II des Schützes 2 zurückbewegt wird durch Ausschalten des Schützes 2 in die Ausschaltstellung II, kann der Winkelhebel wieder um die Drehachse 123 geschwenkt werden und damit eine Bewegung des Schiebers 300 in Richtung S1 durch Entriegelung ermöglichen.After the slide 300a has moved into the switched-on position of the contactor in accordance with FIG. 17 in the direction of arrow S1, it is at the same time engaged on the inner edge 407 of the angle arm 403, so that it blocks the freedom of movement of the angle lever 400 by the counter bearing on the base 121 on the housing base, as a result of which Pivotal movement S3 of the angle lever 400 and thus a corresponding movement of the slide 300 is blocked. Only when the slide 300a is moved back again in the arrow direction S2 from the switched-on position II of the contactor 2 by switching off the contactor 2 into the switched-off position II can the angle lever be pivoted again about the axis of rotation 123 and thus a movement of the slide 300 in the direction S1 by unlocking enable.

In der Figur 18 ist auszugsweise in vergrößerter Darstellung die Zuordnung und das Zusammenwirken der Schieber 300, 300a der Schütze 1 und 2 mit dem Winkelhebel 400 als Verriegelungsorgan dargestellt, wie bereits vorangehend zu den Funktionsstellungen der Figuren 15 bis 17 erläutert.In FIG. 18, the assignment and the interaction of the sliders 300, 300a of the contactors 1 and 2 with the angle lever 400 as a locking member are shown in extracts in an enlarged representation, as already described above for the functional positions of Figures 15 to 17 explained.

Figur 19 zeigt hierbei auszugsweise den Teilquerschnitt AA, woraus das Durchgreifen des Aufnahmezapfens 303 des Schiebers 300 durch das Gehäuseunterteil 100 durch die Ausnehmung 117 verdeutlicht ist, wobei in die Aufnahmebohrung 304 der gestrichelt dargestellte Zapfen 10 des Schützes 1 eingreift. Analag greift am Schieber 300a unterseitig der Zapfen des Schützes 2 für die Mitnahmebewegung ein.FIG. 19 shows part of the partial cross section AA, from which the gripping of the receiving pin 303 of the slide 300 through the lower housing part 100 through the recess 117 is illustrated, the pin 10 of the contactor 1 shown in broken lines engaging in the receiving bore 304. Analag engages on the underside of the pin of the contactor 2 on the slide 300a for the carry-along movement.

Die Figur 20 zeigt den auszugsweisen Teilquerschnitt BB von Figur 18, woraus im Schnitt die ortsfeste Drehachse 123 und die bewegliche Drehachse 301 des hier eingesetzten Winkelhebels 400 ersichtlich sind.FIG. 20 shows the partial cross-section BB from FIG. 18, from which the stationary axis of rotation 123 and the movable axis of rotation 301 of the angle lever 400 used here can be seen.

Die erfindungsgemäße mechanische Verriegelung verhindert also das gleichzeitige Einschalten zweier Schütze, die mit der Sperrvorrichtung ausgestattet sind, da die Anordnung so getroffen ist, daß jeweils nur ein Schütz in eine Einschaltstellung bewegt werden kann. Des weiteren verhindert die Sperrvorrichtung, daß bei einem eingeschaltetem Schütz, das andere Schütz zugeschaltet werden kann.The mechanical locking system according to the invention thus prevents two contactors which are equipped with the blocking device from being switched on at the same time, since the arrangement is such that only one contactor can be moved into one switch-on position at a time. Furthermore, the blocking device prevents the other contactor from being switched on when a contactor is switched on.

Claims (8)

  1. A mechanical blocking device for two mechanically or electromagnetically operated switching parts which are arranged next to each other, such as relays, with a locking part (400) arranged in a moveable manner in a multipart housing (100, 200) and two slides (300, 300a) acting on the locking part to prevent both switching parts being switched on simultaneously, or the second switching part being switched on when the first switching part has already been switched on, whereby a slide is coupled to each switching part, characterized in that the locking part is constructed as an angled lever (400) and can be rotated about a fixed shaft (123) constructed on the lower housing part (100) and engaging in the region of the angle corner into a bearing bore (401) of the angled lever (400), and in that one angled arm (404) of the angled lever is connected to one of the two slides (300) in an articulated manner by way of a moveable shaft (301) which is axis-parallel to the fixed axis of rotation (123) of the angled lever, and in that the other angled arm (403) of the angled lever is moveable, through movement of the slide (300) connected in an articulated manner to the angled lever, into the end positions corresponding to the switched-on position and the switched-off position of the coupled switching part either into a position blocking the freedom of movement of the second slide (300a) for switching on the switching part coupled to the second slide or into a position allowing the freedom of movement necessary for switching on the switching part coupled to the second slide (300a), whereby in the switched-on position of the second slide (300a) the reverse-rotation movement of the angled lever (400) about the fixed shaft (123) is blocked and the slide (300) which is connected in an articulated manner to the angled lever (400) is held in the switched-off position.
  2. A blocking device according to claim 1, characterized in that the two slides (300, 300a) associated with the two switching parts are constructed in the same way as each other and are arranged in the housing (100, 200) in a plane with the angled lever (400), but offset in relation to each other by 180°.
  3. A blocking device according to claim 1 or 2, characterized in that on the upper and lower side of the slides (300, 300a) there are respectively constructed lugs (302) and centring pivots (303) extending perpendicular to the direction of movement (S) of the slides and axis-parallel to the axis of rotation (123), which lugs and pivots respectively act as coupling parts to an auxiliary switch and to the switching parts, with which there are associated corresponding recesses (215, 215a; 117, 117a) on the upper and lower side of the housing, and in that the switching position of the switching parts is displayed on the upper recesses (215, 215a).
  4. A blocking device according to one of claims 1 to 3, characterized in that the housing (100, 200) can be attached to the two switching parts, in particular relays, arranged directly next to each other, and in that the upper side of the upper housing part (200) is structured analogously to the upper side of the relay (1, 2) which can be connected to the lower side of the housing, in order to arrange fittings, for example an auxiliary switch, as with the relays, on the blocking device.
  5. A blocking device according to one of claims 1 to 4, characterized in that the housing is provided with coding pins which project on the lower side and are accessible from above by way of recesses (216, 216a) in the upper housing part, which pins transfer the coding from the switching parts to the fittings, such as an auxiliary switch.
  6. A blocking device according to one of claims 1 to 5, characterized in that the lower housing part (100) has catch hooks (104, 105; 104a, 105a) and guide pins (101 to 103; 101a to 103a) moulded to the lower side for latching on to the switching parts.
  7. A blocking device according to claim 1, characterized in that the hinged connection between the angled lever (400) and slide (300) is formed by a lug moulded in the region of an end of the slide and forming the shaft (301), and by a bearing bore (402) constructed on the angled arm (404) of the angled lever and incorporating the lug (301).
  8. A blocking device according to one of claims 1 to 7, characterized in that the slide (300a) not hinged to the angled lever (400) is guided in a guide groove (130) formed by guide rails (122, 121a) or suchlike moulded to the lower housing part (100) or upper housing part (200) and can be moved to and fro in the switching direction.
EP90105069A 1989-03-18 1990-03-17 Locking device against simultaneous switching-on of two mecanically or electromecanically operated switchgears Expired - Lifetime EP0388823B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3909061 1989-03-18
DE3909061A DE3909061A1 (en) 1989-03-18 1989-03-18 LOCKING DEVICE AGAINST SIMULTANEOUS SWITCHING ON OF TWO MECHANICAL OR ELECTROMAGNETICALLY ACTUATED SWITCHING INSTRUMENTS

Publications (3)

Publication Number Publication Date
EP0388823A2 EP0388823A2 (en) 1990-09-26
EP0388823A3 EP0388823A3 (en) 1991-09-04
EP0388823B1 true EP0388823B1 (en) 1995-03-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90105069A Expired - Lifetime EP0388823B1 (en) 1989-03-18 1990-03-17 Locking device against simultaneous switching-on of two mecanically or electromecanically operated switchgears

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EP (1) EP0388823B1 (en)
AT (1) ATE119315T1 (en)
DE (2) DE3909061A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8466759B2 (en) 2010-03-26 2013-06-18 Fuji Electric Fa Components & Systems Co., Ltd. Reversible electromagnetic contactor

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2673320B1 (en) * 1991-02-21 1995-06-02 Telemecanique SWITCHING APPARATUS WITH ELECTROMAGNETIC CONTROL AND MECHANICAL CONDUCTION.
DE19610657A1 (en) * 1996-03-08 1997-09-11 Siemens Ag Locking device for a gas-insulated switchgear with double busbars
JP4957764B2 (en) * 2009-08-20 2012-06-20 富士電機機器制御株式会社 Reversible electromagnetic contactor
JP5051246B2 (en) * 2010-01-14 2012-10-17 富士電機機器制御株式会社 Mounting unit for magnetic contactor and connection structure of magnetic contactor using the same
JP5504925B2 (en) * 2010-01-29 2014-05-28 富士電機機器制御株式会社 Reversible electromagnetic contactor
JP5636798B2 (en) * 2010-08-03 2014-12-10 富士電機機器制御株式会社 Reversible electromagnetic contactor

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
DE1264579B (en) * 1964-01-17 1968-03-28 Demag Zug Gmbh Locking device against simultaneous switching on of two mechanically or electromagnetically operated contactors
FR2045090A5 (en) * 1969-05-30 1971-02-26 Unelec
DE2951356C2 (en) * 1979-12-20 1985-05-09 Brown, Boveri & Cie Ag, 6800 Mannheim Device for mechanical switch-on blocking of one of two switching elements as long as the other switching element is in the switched-on position
JPS6258535A (en) * 1985-09-06 1987-03-14 オムロン株式会社 Interlock mechanism for electromagnetic contactor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8466759B2 (en) 2010-03-26 2013-06-18 Fuji Electric Fa Components & Systems Co., Ltd. Reversible electromagnetic contactor

Also Published As

Publication number Publication date
DE3909061A1 (en) 1990-09-20
EP0388823A2 (en) 1990-09-26
DE59008556D1 (en) 1995-04-06
EP0388823A3 (en) 1991-09-04
ATE119315T1 (en) 1995-03-15

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