EP0021122A1 - Housing for electrical switching apparatuses - Google Patents

Housing for electrical switching apparatuses Download PDF

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Publication number
EP0021122A1
EP0021122A1 EP80103033A EP80103033A EP0021122A1 EP 0021122 A1 EP0021122 A1 EP 0021122A1 EP 80103033 A EP80103033 A EP 80103033A EP 80103033 A EP80103033 A EP 80103033A EP 0021122 A1 EP0021122 A1 EP 0021122A1
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EP
European Patent Office
Prior art keywords
housing
tongue
cover
wall
tongues
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.)
Withdrawn
Application number
EP80103033A
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German (de)
French (fr)
Inventor
Fritz Ing. Krasser (Grad.)
Josef Kinner
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.)
Ellenberger and Poensgen GmbH
Original Assignee
Ellenberger and Poensgen GmbH
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 Ellenberger and Poensgen GmbH filed Critical Ellenberger and Poensgen GmbH
Publication of EP0021122A1 publication Critical patent/EP0021122A1/en
Withdrawn legal-status Critical Current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
    • H01H50/02—Bases; Casings; Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers

Definitions

  • the invention relates to a housing for electrical switching devices with the features of the preamble of patent claim 1.
  • Such known plastic housings are closed according to the prior art with flat lids, the lids being mechanically firmly connected to the housing by means of rivets, screws or adhesive. If the connection is made with screws, the assembly of the covers is labor-intensive. If rivets or adhesive are provided for connecting the cover and the housing, this connection is easier to carry out, but has the disadvantage that the housing cannot be opened again without destroying the sensitive housing parts. Switching devices provided with such housings can therefore only be repaired with difficulty and usually have to be replaced completely in the event of malfunctions or failure of the switching function.
  • the invention has for its object to reduce the manufacturing costs for such housings and to save the connecting elements mentioned.
  • the connection between the housing and cover should be detachable and recoverable without special tools.
  • the invention makes it possible to completely dispense with rivets, screws or adhesives for fastening the housing cover.
  • the cover can simply be placed on the housing and brought so close to it by weak pressure that the tongues engage behind the projections and lock there. This connection can easily be released at any time by slightly lifting the free ends of the resilient tongues and the electrical switching device built into the housing can be cleaned or repaired, for example. Since the resilient tongues abut the outer walls of the housing, it is achieved that the interior of the housing is completely available for electrical switching elements and that the cover is also immovably attached to the housing opening.
  • the lid and the housing can be produced inexpensively in one operation, for example by injection molding.
  • the extensions arranged on the free ends of the resilient tongues are hook-shaped, whereby a particularly tight fit of the cover is brought about, for example, when the switching device vibrates (claim 2).
  • the cover seat on the housing is additionally improved, in particular when only two resilient tongues are arranged on two opposite side channels lateral displacement of the lid is completely prevented.
  • the outer edges of the tongues are guided through the side flanks of the groove during the closing process, thereby ensuring that the projections snap into place behind the projections arranged in the grooves.
  • the groove can be formed by two parallel guide webs projecting from the housing wall (claim 5). This advantageously prevents a weakening of the housing wall in the groove area or a loss of the housing interior.
  • the tongues are completely immersed in the grooves and are completely protected against lateral shear stress.
  • the features according to claim 7 further facilitate the lid assembly, in particular without additional tools.
  • a molding die for reaching the extension arranged on the inside of the tongue can reach through during the injection process of the cover, whereby the manufacture of the cover is simplified.
  • the size of the recess allows the locking force of the spring tongues to be easily adapted to the respective requirements.
  • a switching device 1 which has a rectangular housing 2 with a cover 3 arranged thereon.
  • a tongue 4 is formed on each of two opposite side edges 11 of the cover 3 and engages with its free end 5 behind a correspondingly arranged projection 6 of the housing 2.
  • the tongue 4 protrudes from the side edge 11 at right angles to the cover surface.
  • an extension 7 is formed, which is hook-shaped and protrudes at right angles from the tongue 4 to the lid center. This extension 7 engages in the closed position behind the housing projection 6, which protrudes from the housing outer wall 12 at right angles.
  • the tongue 4 lies in a groove 15 which extends at right angles to the upper edge 16 of the housing and is formed on the outer wall 12 of the housing.
  • the groove 15 has two parallel side flanks 17 which run at right angles to the outer wall 12 of the housing in the direction 20 and whose mutual spacing corresponds approximately to the width of the tongue 4.
  • the projection 6 runs parallel to the side edge 11 of the cover 3 between the side flanks 17 of the groove 15.
  • the cover surface is provided with a recess 10 in the area of the tongue attachment.
  • the outer edge 13 of the recess 10 is flush with the inside 14 of the tongue 4.
  • the width of the recess 10 corresponds essentially to the distance between the outer edges 18 of the tongue 4.
  • two tongues 4 are formed parallel to one another and at a short distance from one another on the cover side edge 11.
  • the free ends 5 of the two tongues 4 are connected by means of a crossbar 8 which runs parallel to the side edge 11 between the free ends 5.
  • the transverse web 8 engages behind the projection 6.
  • the extension 7 or the transverse web 8 is provided on its side facing the housing 2 with a bevel 9 which, during the closing process, acts on a sliding inclined surface 21 which on the side of the projection facing the cover 3 9 is formed.

Abstract

A plastic housing (2) for electrical low-voltage switching apparatuses (1) is provided with a sealing cover (3). The detachable and reproducible connection between the sealing cover (3) and the housing (2) is produced by locking elements. The locking elements are designed as sprung tongues (4) integrally formed on the cover side edges, which stand out from the side edges (11) essentially at right angles to the cover surface and at least partially embrace the housing (2) bearing on its outer wall (12). A lock extension (7) at the free end (5) of the sprung tongue (4) engages behind a housing projection (6) in the sealed position, the housing projection (6) being arranged on the housing outer wall (12). In the sealed position, the sprung tongues (4) are located in slots (15) in the housing outer walls (12). <IMAGE>

Description

Die Erfindung betrifft ein Gehäuse für elektrische Schaltgeräte mit den Merkmalen des Oberbegriffes des Patentanspruches 1.The invention relates to a housing for electrical switching devices with the features of the preamble of patent claim 1.

Derartige bekannte Kunststoffgehäuse werden nach dem Stande der Technik mit flachen Deckeln verschlossen, wobei die Deckel mittels Nieten, Schrauben oder Klebstoff mechanisch fest mit dem Gehäuse verbunden werden. Wird die Verbindung mit Schrauben vorgenommen, so ist die Montage der Deckel arbeitsaufwendig. Sind zur Verbindung von Abdeckung und Gehäuse Nieten oder Klebstoff vorgesehen, so ist diese Verbindung zwar einfacher durchzuführen, aber mit dem Nachteil behaftet, daß das Gehäuse ohne Zerstörung der empfindlichen Gehäuseteile nicht wieder zu öffnen ist. Mit derartigen Gehäusen versehene Schaltgeräte können deshalb nur schwerlich repariert werden und müssen meist bei Störungen oder Ausfall der Schaltfunktion gänzlich ausgetauscht werden.Such known plastic housings are closed according to the prior art with flat lids, the lids being mechanically firmly connected to the housing by means of rivets, screws or adhesive. If the connection is made with screws, the assembly of the covers is labor-intensive. If rivets or adhesive are provided for connecting the cover and the housing, this connection is easier to carry out, but has the disadvantage that the housing cannot be opened again without destroying the sensitive housing parts. Switching devices provided with such housings can therefore only be repaired with difficulty and usually have to be replaced completely in the event of malfunctions or failure of the switching function.

Der Erfindung liegt die Aufgabe zugrunde, den Fertigungsaufwand für derartige Gehäuse zu reduzieren und die erwähnten Verbindungselemente einzusparen. Die Verbindung zwischen Gehäuse und Deckel soll dabei ohne besondere Werkzeuge lösbar und wiederherstellbar sein.The invention has for its object to reduce the manufacturing costs for such housings and to save the connecting elements mentioned. The connection between the housing and cover should be detachable and recoverable without special tools.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Patentanspruches 1 gelöst.This object is achieved by the characterizing features of patent claim 1.

Zunächst ist es durch die Erfindung möglich, auf Nieten, Schrauben oder Verklebungen zur Befestigung des Gehäusedeckels vollständig zu verzichten. Der Deckel kann gemäß der Erfindung einfach auf das Gehäuse aufgesetzt werden und durch schwachen Druck so weit an dieses angenähert werden, daß die Zungen hinter die Vorsprünge greifen und dort verrasten. Diese Verbindung kann durch leichtes Anheben der freien Enden der federnden Zungen jederzeit problemlos wieder gelöst werden und das in dem Gehäuse eingebaute elektrische Schaltgerät beispielsweise gereinigt oder repariert werden. Da die federnden Zungen an den Gehäuseaußenwänden anliegen, wird erreicht, daß der Innenraum des Gehäuses vollständig für elektrische Schaltorgane zur Verfügung steht und außerdem der Deckel unverrückbar auf der Gehäuseöffnung befestigt ist. Der Deckel sowie das Gehäuse können in einem Arbeitsgang, beispielsweise durch Formspritzen kostengünstig hergestellt werden.First of all, the invention makes it possible to completely dispense with rivets, screws or adhesives for fastening the housing cover. According to the invention, the cover can simply be placed on the housing and brought so close to it by weak pressure that the tongues engage behind the projections and lock there. This connection can easily be released at any time by slightly lifting the free ends of the resilient tongues and the electrical switching device built into the housing can be cleaned or repaired, for example. Since the resilient tongues abut the outer walls of the housing, it is achieved that the interior of the housing is completely available for electrical switching elements and that the cover is also immovably attached to the housing opening. The lid and the housing can be produced inexpensively in one operation, for example by injection molding.

Vorteilhafterweise sind die an den freien Enden der federnden Zungen angeordneten Fortsätze hakenförmig ausgebildet, wodurch ein besonders fester Sitz des Deckels beispielsweise bei Vibration des Schaltgerätes bewirkt ist (Patentanspruch 2).Advantageously, the extensions arranged on the free ends of the resilient tongues are hook-shaped, whereby a particularly tight fit of the cover is brought about, for example, when the switching device vibrates (claim 2).

Durch die doppelte Ausführung der Federzungen gemäß Patentanspruch 3 wird eine weitere Verbesserung des i Deckelsitzes und eine Erhöhung der Verschlußkraft erreicht.Due to the double design of the spring tongues according to claim 3, a further improvement of the lid seat and an increase in the closing force is achieved.

Durch die kennzeichnenden Merkmale des Patentanspruches 4 wird der Deckelsitz auf dem Gehäuse zusätzlich verbessert, wobei insbesondere bei Anordnung von nur zwei federnden Zungen an zwei gegenüberliegenden Seitenkanten des Deckels eine seitliche Verschiebung des Deckels vollständig verhindert wird. Die Außenkanten der Zungen sind durch die Seitenflanken der Nut beim Verschlußvorgang geführt, wodurch ein sicheres Einrasten der Fortsätze hinter den in den Nuten angeordneten Vorsprüngen gewährleistet ist.Due to the characterizing features of claim 4, the cover seat on the housing is additionally improved, in particular when only two resilient tongues are arranged on two opposite side channels lateral displacement of the lid is completely prevented. The outer edges of the tongues are guided through the side flanks of the groove during the closing process, thereby ensuring that the projections snap into place behind the projections arranged in the grooves.

Die Nut kann durch zwei parallele, von der Gehäusewand abstehende Führungsstege gebildet sein (Patentanspruch 5). Dadurch wird in vorteilhafter Weise eine Schwächung der Gehäusewand im Nutbereich bzw. ein Verlust von Gehäuseinnenraum vermieden.The groove can be formed by two parallel guide webs projecting from the housing wall (claim 5). This advantageously prevents a weakening of the housing wall in the groove area or a loss of the housing interior.

Durch das Kennzeichen des Patentanspruches 6 tauchen die Zungen vollständig in den Nuten ein und sind vor seitlicher Scherbelastung vollständig geschützt.Due to the characterizing part of claim 6, the tongues are completely immersed in the grooves and are completely protected against lateral shear stress.

Durch die Merkmale gemäß Patentanspruch 7 wird eine weitere Erleichterung der Deckelmontage insbesondere ohne zusätzliche Werkzeuge ermöglicht.The features according to claim 7 further facilitate the lid assembly, in particular without additional tools.

Durch die Aussparung im Deckel gemäß Patentanspruch 8 kann beim Spritzvorgang des Deckels ein Formstempel zur Formung des an der Innenseite der Zunge angeordneten Fortsatzes hindurchgreifen, wodurch die Herstellung des Deckels vereinfacht wird. Gleichzeitig kann durch die Größe der Aussparung die Verschlußkraft der Federzungen auf einfache Weise den jeweiligen Erfordernissen angepaßt werden.Due to the recess in the cover according to claim 8, a molding die for reaching the extension arranged on the inside of the tongue can reach through during the injection process of the cover, whereby the manufacture of the cover is simplified. At the same time, the size of the recess allows the locking force of the spring tongues to be easily adapted to the respective requirements.

-Der =Erfindungsgegenstand wird anhand mehrerer Figuren in der Zeichnung näher erläutert. Es stellen dar:

  • Figur 1 eine Draufsicht auf ein Niederspannungsschaltgerät mit erfindungsgemäßem Gehäuse und Deckel, nämlich ein Türverriegelungsrelais;
  • Figur 2 einen vergrößerten Schnitt entlang der Linie II-II in Fig.1;
  • Figur 3 eine Seitenansicht gemäß Pfeil III in Fig.2;
  • Figur 4 einen vergrößerten Schnitt entlang der Linie IV-IV in Fig.5;
  • Figur 5 eine vergrößerte Seitenansicht in Richtung des Pfeiles V in Fig. 4.
-The = subject of the invention is explained in more detail with reference to several figures in the drawing. They represent:
  • Figure 1 is a plan view of a low-voltage switching device with a housing and cover according to the invention, namely a door locking relay;
  • Figure 2 is an enlarged section along the line II-II in Figure 1;
  • Figure 3 is a side view according to arrow III in Figure 2;
  • FIG. 4 shows an enlarged section along the line IV-IV in FIG. 5;
  • FIG. 5 is an enlarged side view in the direction of arrow V in FIG. 4.

In der Zeichnung ist ein Schaltgerät 1 dargestellt, welches ein rechteckiges Gehäuse 2 mit darauf angeordnetem Deckel 3 aufweist. An jeweils zwei gegenüberliegenden Seitenkanten 11 des Deckels 3 ist je eine Zunge 4 angeformt, die mit ihrem freien Ende 5 hinter einem entsprechend angeordneten Vorsprung 6 des Gehäuses 2 greift. Die Zunge 4 steht im rechten Winkel zur Deckelfläche von der Seitenkante 11 ab. Am freien Ende 5 der Zunge 4 ist ein Fortsatz 7 angeformt, der hakenförmig ausgebildet ist und rechtwinklig von der Zunge 4 zum Deckelzentrum absteht. Dieser Fortsatz 7 greift in Verschlußstellung hinter den Gehäusevorsprung 6, der von der Gehäuseaußenwand 12 rechtwinklig absteht. Die Zunge 4 liegt in Verschlußstellung in einer rechtwinklig zur Gehäuseoberkante 16 verlaufenden Nut 15 ein, die an der Gehäuseaußenwand 12 angeformt ist. Die Nut 15 weist zwei parallelliegende Seitenflanken 17 auf, die rechtwinklig zur Gehäuseaußenwand 12 in Abstehrichtung 20 verlaufen, und deren gegenseitiger Abstand in etwa der Breite der Zunge 4 entspricht. Der Vorsprung 6 verläuft parallel zur Seitenkante 11 des Deckels 3 zwischen den Seitenflanken 17 der Nut 15.In the drawing, a switching device 1 is shown, which has a rectangular housing 2 with a cover 3 arranged thereon. A tongue 4 is formed on each of two opposite side edges 11 of the cover 3 and engages with its free end 5 behind a correspondingly arranged projection 6 of the housing 2. The tongue 4 protrudes from the side edge 11 at right angles to the cover surface. At the free end 5 of the tongue 4, an extension 7 is formed, which is hook-shaped and protrudes at right angles from the tongue 4 to the lid center. This extension 7 engages in the closed position behind the housing projection 6, which protrudes from the housing outer wall 12 at right angles. In the closed position, the tongue 4 lies in a groove 15 which extends at right angles to the upper edge 16 of the housing and is formed on the outer wall 12 of the housing. The groove 15 has two parallel side flanks 17 which run at right angles to the outer wall 12 of the housing in the direction 20 and whose mutual spacing corresponds approximately to the width of the tongue 4. The projection 6 runs parallel to the side edge 11 of the cover 3 between the side flanks 17 of the groove 15.

Die Deckelfläche ist im Bereich der Zungenbefestigung mit einer Aussparung 10 versehen. Die außenliegende Kante 13 der Aussparung 10 fluchtet mit der Innenseite 14 der Zunge 4. Die Breite der Aussparung 10 stimmt im wesentlichen mit dem Abstand der Außenkanten 18 der Zunge 4 überein.The cover surface is provided with a recess 10 in the area of the tongue attachment. The outer edge 13 of the recess 10 is flush with the inside 14 of the tongue 4. The width of the recess 10 corresponds essentially to the distance between the outer edges 18 of the tongue 4.

Bei der in den Figuren 4 und 5 wiedergegebenen Ausführungsform des Gehäuses 2 sind zwei Zungen 4 parallel nebeneinanderliegend in geringem Abstand an der Deckelseitenkante 11 angeformt. Die freien Enden 5 der beiden Zungen 4 sind mittels eines Quersteges 8 verbunden, der zwischen den freien Enden 5 parallel zur Seitenkante 11 verläuft. In Verschlußstellung hintergreift der Quersteg 8 den Vorsprung 6. Der Fortsatz 7 bzw. der Quersteg 8 ist an seiner dem Gehäuse 2 zugewandten Seite mit einer Abschrägung 9 versehen, die beim Verschlußvorgang eine Aufgleitschrägfläche 21 beaufschlagt, die an der dem Deckel 3 zugewandten Seite des Vorsprunges 9 angeformt ist.In the embodiment of the housing 2 shown in FIGS. 4 and 5, two tongues 4 are formed parallel to one another and at a short distance from one another on the cover side edge 11. The free ends 5 of the two tongues 4 are connected by means of a crossbar 8 which runs parallel to the side edge 11 between the free ends 5. In the closed position, the transverse web 8 engages behind the projection 6. The extension 7 or the transverse web 8 is provided on its side facing the housing 2 with a bevel 9 which, during the closing process, acts on a sliding inclined surface 21 which on the side of the projection facing the cover 3 9 is formed.

Claims (8)

1.) Gehäuse für elektrische Schaltgeräte, insbesondere Niederspannungsrelais für Haushaltgeräte o.dgl. 1. Das Gehäuse ist mit einem Verschlußdeckel (3) versehen, welcher 1.1 im wesentlichen eine Seitenwand des Gehäuses (2) bildet und ' 1.2 als flache, insbesondere rechteckige Platte ausgebildet ist. 2. Das Gehäuse (2) und der Deckel (3) sind aus Kunststoff gespritzt.
Kennzeichen: 3. An zumindest zwei gegenüberliegenden Seitenkanten (11) des Deckels (3) ist mindestens eine federnde Zunge (4) angeformt, die 3.1 im wesentlichen rechtwinklig zur Deckelfläche von der Seitenkante (11) absteht, 3.2 in Verschlußstellung an einer Gehäuseaußenwand (12) federnd anliegt und 3.3 an ihrem freien Ende (5) mit einem Fortsatz (7) versehen ist, der 3.3.1 im wesentlichen rechtwinklig von der Zunge (4) zur Deckelmitte absteht und 3.3.2 einen an der Gehäuseaußenwand (12) angeordneten Vorsprung (6) hintergreift. 1.) Housing for electrical switching devices, in particular low-voltage relays for household appliances or the like. 1. The housing is provided with a cover (3), which 1.1 essentially forms a side wall of the housing (2) and '1.2 is designed as a flat, in particular rectangular plate. 2. The housing (2) and the cover (3) are injection molded from plastic.
Mark: 3. At least two resilient tongue (4) is formed on at least two opposite side edges (11) of the cover (3) 3.1 protrudes from the side edge (11) essentially at right angles to the cover surface, 3.2 rests resiliently in the closed position on a housing outer wall (12) and 3.3 is provided at its free end (5) with an extension (7) 3.3.1 protrudes essentially at right angles from the tongue (4) to the center of the lid and 3.3.2 engages behind a projection (6) arranged on the housing outer wall (12). 2.) Gehäuse nach Anspruch 1, dadurch gekennzeichnet, daß der.Fortsatz (7) hakenförmig ausgebildet ist.2.) Housing according to claim 1, characterized in that the extension. (7) is hook-shaped. 3.) Gehäuse nach Anspruch 1, gekennzeichnet durch folgende Merkmale: 1. Zwei Zungen (4) sind in geringem Abstand parallelliegend nebeneinander an einer Seitenkante (11) angeordnet. 2. Die freien Enden (5) der Zungen (4) sind durch einen Quersteg (8) verbunden, der 2.1 parallel zur Seitenkante (11) verläuft und 2.2 in Verschlußstellung einen an der Gehäuseaußenwand (12) angeordneten Vorsprung (6) hintergreift. 3.) Housing according to claim 1, characterized by the following features: 1. Two tongues (4) are arranged parallel to each other on a side edge (11) at a short distance. 2. The free ends (5) of the tongues (4) are connected by a crossbar (8) 2.1 runs parallel to the side edge (11) and 2.2 in the closed position engages behind a projection (6) arranged on the housing outer wall (12). 4.) Gehäuse nach mindestens einem der Ansprüche 1-bis 3, gekennzeichnet durch folgende Merkmale: - 1. an die Gehäuseaußenwand (12) ist eine Nut (15) angeformt, die 1.1 rechtwinklig zur Oberkante (16) des Gehäuses (2) verläuft und 1.2 mit ihren Seitenflanken (17) die Außenkanten (18) der Zunge (4) bzw. Zungen (4) umgreift. 4.) Housing according to at least one of claims 1 to 3, characterized by the following features: - 1. a groove (15) is formed on the outer wall (12) of the housing 1.1 runs at right angles to the upper edge (16) of the housing (2) and 1.2 with its side flanks (17) engages around the outer edges (18) of the tongue (4) or tongues (4). 5.) Gehäuse nach mindestens einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Nut (15) durch zwei parallele, von der Gehäuseaußenwand (12) abstehende Führungsstege gebildet ist.5.) Housing according to at least one of claims 1 to 4, characterized in that the groove (15) is formed by two parallel, from the housing outer wall (12) projecting guide webs. 6.) Gehäuse nach mindestens einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Seitenflanken (17) der Nut (15) die Zunge (4) in zur Gehäuseaußenwand (12) rechtwinkliger Abstehrichtung 20 überragen.6.) Housing according to at least one of claims 1 to 5, characterized in that the side flanks (17) of the groove (15) project beyond the tongue (4) in the housing outer wall (12) at right angles 20. 7.) Gehäuse nach mindestens einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Fortsätze (7) bzw. Querstege (8) und die Vorsprünge (6) des Gehäuses (2) Abschrägungen (9) bzw. Aufgleitschrägflächen (21) aufweisen, die beim Verschlußvorgang aufeinandergleiten.7.) Housing according to at least one of claims 1 to 6, characterized in that the extensions (7) or transverse webs (8) and the projections (6) of the housing (2) have bevels (9) or sliding inclined surfaces (21) that slide on each other during the closing process. 8.) Gehäuse nach wenigstens einem der Ansprüche 1 bis 4, gekennzeichnet durch folgende Merkmale: 1. Der Deckel (3) ist im Befestigungsbereich der Zunge (4) mit einer Aussparung (10) versehen, 1.1 deren lichter Durchmesser in Richtung der Seitenkante (11) im wesentlichen mit der Breite der Zunge (4) übereinstimmt und 1.2 deren außenliegende Kante (13) mit der Innenseite (14) der Zunge (4) fluchtet. 2. Die Zunge (4) ist an ihrem dem Deckel (3) zuge-- wandten Ende beidseitig mit einer Querschnittsverstärkung versehen. 8.) Housing according to at least one of claims 1 to 4, characterized by the following features: 1. The cover (3) is provided in the fastening area of the tongue (4) with a recess (10), 1.1 whose clear diameter in the direction of the side edge (11) essentially corresponds to the width of the tongue (4) and 1.2 whose outer edge (13) is aligned with the inside (14) of the tongue (4). 2. The tongue (4) is provided with a cross-sectional reinforcement on both sides at its end facing the cover (3).
EP80103033A 1979-06-16 1980-05-31 Housing for electrical switching apparatuses Withdrawn EP0021122A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7917301U 1979-06-16
DE19797917301 DE7917301U1 (en) 1979-06-16 1979-06-16 Housings for electrical switchgear

Publications (1)

Publication Number Publication Date
EP0021122A1 true EP0021122A1 (en) 1981-01-07

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EP80103033A Withdrawn EP0021122A1 (en) 1979-06-16 1980-05-31 Housing for electrical switching apparatuses

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EP (1) EP0021122A1 (en)
DE (1) DE7917301U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2579015A1 (en) * 1985-03-18 1986-09-19 Telemecanique Electrique Multi-pole breaker with electromagnetic control
DE9113293U1 (en) * 1991-10-25 1992-11-19 Cherry Mikroschalter Gmbh, 8572 Auerbach, De

Citations (7)

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Publication number Priority date Publication date Assignee Title
US2329442A (en) * 1941-11-05 1943-09-14 Mc Gill Mfg Co Electric switch housing
DE1113516B (en) * 1959-11-27 1961-09-07 Elektro App Werke J W Stalin V Protective cap for electrical devices, especially for relays
GB1028382A (en) * 1963-09-27 1966-05-04 Standard Telephones Cables Ltd Thermostat case
US3412225A (en) * 1965-07-12 1968-11-19 Robertshaw Controls Co Switch with hinged switch base and cover
FR1591978A (en) * 1968-11-15 1970-05-04
GB1442332A (en) * 1972-12-19 1976-07-14 Bulgin Co Ltd A F Housings for electric switches
US4105883A (en) * 1976-06-09 1978-08-08 Cutler-Hammer, Inc. Electric switch having a frame with improved snap-in base retention means

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2329442A (en) * 1941-11-05 1943-09-14 Mc Gill Mfg Co Electric switch housing
DE1113516B (en) * 1959-11-27 1961-09-07 Elektro App Werke J W Stalin V Protective cap for electrical devices, especially for relays
GB1028382A (en) * 1963-09-27 1966-05-04 Standard Telephones Cables Ltd Thermostat case
US3412225A (en) * 1965-07-12 1968-11-19 Robertshaw Controls Co Switch with hinged switch base and cover
FR1591978A (en) * 1968-11-15 1970-05-04
GB1442332A (en) * 1972-12-19 1976-07-14 Bulgin Co Ltd A F Housings for electric switches
US4105883A (en) * 1976-06-09 1978-08-08 Cutler-Hammer, Inc. Electric switch having a frame with improved snap-in base retention means

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2579015A1 (en) * 1985-03-18 1986-09-19 Telemecanique Electrique Multi-pole breaker with electromagnetic control
DE9113293U1 (en) * 1991-10-25 1992-11-19 Cherry Mikroschalter Gmbh, 8572 Auerbach, De

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