EP0595289B1 - Central retaining device for a raildrawer cupboard - Google Patents

Central retaining device for a raildrawer cupboard Download PDF

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Publication number
EP0595289B1
EP0595289B1 EP93117395A EP93117395A EP0595289B1 EP 0595289 B1 EP0595289 B1 EP 0595289B1 EP 93117395 A EP93117395 A EP 93117395A EP 93117395 A EP93117395 A EP 93117395A EP 0595289 B1 EP0595289 B1 EP 0595289B1
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EP
European Patent Office
Prior art keywords
drawer
bolt
locking
slide
locking bar
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Expired - Lifetime
Application number
EP93117395A
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German (de)
French (fr)
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EP0595289A1 (en
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FAMI SpA
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FAMI SpA
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    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00Locks or fastenings for special use
    • E05B65/46Locks or fastenings for special use for drawers
    • E05B65/462Locks or fastenings for special use for drawers for two or more drawers
    • E05B65/468Locks or fastenings for special use for drawers for two or more drawers using rotary locking bars
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00Locks or fastenings for special use
    • E05B65/46Locks or fastenings for special use for drawers
    • E05B65/462Locks or fastenings for special use for drawers for two or more drawers

Definitions

  • the invention relates to a central locking device for drawer cabinets according to the preamble of claim 1.
  • Such central locking devices are used, for example, in steel drawer cabinets in which tools are stored. With such a locking device, all drawers of the cabinet can be locked or unlocked simultaneously via a central cylinder lock.
  • Shut-off devices are known in which a locking bar is actuated with the key of a cylinder lock via corresponding deflection devices and can be rotated about its longitudinal axis in two stop positions. In the one stop position, the locking bar engages appropriately designed locking hooks of all the drawers and in this way all the drawers of the cabinet are locked. In the second position, the locking bar releases all drawers so that they can be opened as required. The length of the locking bar extends across all drawers.
  • the problem to be solved by the invention is to provide a central locking device in which drawers which are accidentally left open after the cabinet has been locked can still be locked subsequently without having to operate the lock again and without the locking device being closed to damage.
  • an axially movable slide is provided, which is supported by a spring element on the bolt of the locking device and which interacts via a guide rod with the locking bar, so that the locking bar subsequently locked when the lock is locked from the locking stop position to the unlocking stop position spring back. If a drawer accidentally left open after the cabinet has been locked is subsequently pushed in, the locking hook on the drawer pushes the locking bar into the spring-loaded unlocking position and the locking bar then springs back automatically into the locking position as soon as the drawer has reached its end stop position. In this way it is possible to subsequently lock drawers that have been accidentally left open without actuating the lock and without damaging the locking device.
  • the slide is arranged inside the bolt.
  • the slide is optimally integrated into previously known designs for central shut-off devices.
  • the outer cross section of the slide In order to achieve good guidance of the slide within the bolt, it is expedient for the outer cross section of the slide to substantially match the inner cross section of the bolt.
  • the spring element is designed in the form of a helical spring, because this results in a simple, inexpensive and reliable solution.
  • a guide is provided for the spring element.
  • This guide can be designed as a rod on which the spring element can be moved.
  • a rod can e.g. be fixed in a recess of the slide and an opening in the bolt can be provided for the other end of the rod so that the rod is displaceable when the slide is deflected.
  • the spring stiffness of the spring element is selected so that the slide does not yet deflect from one stop position into the other during a correct adjustment process of the locking bar. This ensures that the forces necessary for subsequent deflection of the locking bar from the locking position into the unlocking position remain as low as possible.
  • a transmission rod 7 which is rotatably connected to a cam 6.
  • the transmission rod 7 directly transmits the rotary movements of a key, which is inserted into the locking piston of a cylinder lock (not shown), to the cam disk 6.
  • This has a guide rail 23 in which a pin 8 slides, which is firmly connected to a bolt 4 .
  • the bolt 4 is mounted in the housing bracket plate 11 that it can be displaced in the direction of its longitudinal axis.
  • the bolt 4 consists of a locking plate 9, which has a U-shaped profile, in its inner cross section
  • a stop plate 22 is welded in at one end and two rectangular openings 24, 25 are provided on the side faces thereof.
  • a detachably mounted locking hook 20 which is made of plastic and is firmly connected to the locking plate 9, a slide 1, a spring element 2 and a slide stop 21 in the form of a welded rectangular piece of sheet metal.
  • the slide 1 has a cylindrical recess 26, in which the spring element 2, which is designed as a helical spring, is supported with one end, while the other end of the spring element is supported on the stop plate 22.
  • the spring element 2 is biased against the slide stop 21.
  • a locking bar 3 can also be seen, which is rotatably mounted about two axes at its ends, firmly connected to it bearing rods 12, 13 about an axis parallel to its longitudinal axis. In the axial direction, the locking bar 3 is fixed immovably by a bearing and spacer bush 19 and a spacer 27. Furthermore, guide rods 5, 16 are attached to the locking bar 3 at both ends, the guide rod 5 being introduced into the interior of the bolt 4 via a recess 28 and the opening 25 and the guide rod 16 being congruent with the recess 28 by means of a bearing bush 18 Recess 17 (see FIG. 3) is performed.
  • a spring 15 is fastened to the guide rod 16, which is supported on the housing angle plate 14 and holds the guide rod 16 and thus also the locking bar 3 in one of the two end stop positions of the recess 17.
  • the locking bar 3 itself is designed as a profiled sheet and extends in length over all drawers of the cabinet.
  • the housing angle plates 11, 14 are firmly connected to the housing wall 29 of the drawer cabinet, e.g. by welding.
  • Fig. 3 shows how the bearing bush 18 and the locking bar 3 connected to it via the guide rod 16 are held by the spring 15 in an end stop position of the recess 17.
  • the bearing bush 19 can be seen in this figure, which rotatably supports the locking bar 3 via the bearing rod 13.
  • Fig. 1, Fig. 2 and Fig. 3 show the position of the shut-off device, in which the drawer cabinet is locked and the locking bar 3 locks all drawers.
  • the locking bar 3 engages around a locking hook, which is attached to the back of each drawer (not shown).
  • a second hook (not shown) is also attached to each drawer, which will be discussed further below in connection with FIG. 6.
  • the bearing bush 18 connected to the guide rod 16 is transferred from its illustrated end stop position into the second end stop position, in which it then held by the spring 15.
  • the locking bar 3 is then in the unlocking position (cf. position of the locking bar in FIG. 5) and the locking hook of each drawer is released.
  • the locking hook 20 located in the locking bar 4 pushes the guide rod 5 to the right and thereby initiates the desired rotational movement of the locking bar 3.
  • No load acts on the control surface 32 of the slide 1, which, like the locking hook 20, can be made of plastic.
  • the locking bar 3 can also later spring out of its locking position. As is shown schematically in FIGS. 4 and 5, the locking bar 3 can spring out of its locking position (FIG. 4) into the open, unlocked position (FIG. 5). A force acts on the locking bar 3 in the direction of the spring element 2 (see arrow in FIG. 5), it is transmitted via the guide rod 5 to the slide 1, which compresses the spring and moves axially - to the right in FIG. 5.
  • a drawer which is accidentally left open when the cabinet is locked can also be subsequently pushed in without the locking device having to be actuated with the key.
  • the two hooks of the drawer interact with the locking bar 3 in such a way that a hook presses the locking bar against the spring force of the spring element 2 into the unlocked position, so that the second hook of the drawer, the locking hook, behind the locking bar can reach and then the spring element 2 presses the locking bar back into the locking position, the locking bar then engaging around the locking hook.
  • each drawer there are two hooks on each drawer.
  • the actual locking hook interacts with the locking bar to lock or open the drawers when the lock is operated.
  • the interaction of the second hook with the locking bar means that only one drawer can be opened at a time and a second drawer can only be opened when the first drawer has been closed again. If, for example, the drawers are loaded with heavy tools and you could open several drawers at the same time, the cabinet could otherwise tip over if the center of gravity is shifted too far outwards.
  • the second hook which lies opposite the first and is arranged somewhat offset, has the task, when the locker is unlocked after the lock has been actuated, of pressing the locking bar immediately behind this drawer into the locking position when a drawer is pulled out.
  • the guide rod 5 slides under the locking hook 20 and rests there on the guide surface 33. This position is shown in Fig. 6.
  • the locking bar 3 itself is in the same position as shown in FIGS. 1 to 3, but the latch 4 is further to the right than when the locking bar is locked by locking the cabinet, because the latch is still in the same position as you get when you unlock the cabinet and thus open the locking bar. Because the locking hook is shaped accordingly and resiliently springs, the locking bar can be pressed open and closed by a directly directed, correspondingly directed force, which is transmitted by the second hook on the back of the drawer when the drawer is actuated.

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  • Drawers Of Furniture (AREA)

Abstract

Central retaining device for drawer cupboards, in which the turn of a key in a cylinder lock is transmitted via deflecting devices (6,7,8) to a bolt (4) and from this to a locking strip (3) which cooperates with correspondingly designed hooks on the drawers and which can assume a locking position and an unlocking position, in which it engages round or releases the drawer hooks. So that a drawer which has inadvertently remained open after the retention of the cupboard can subsequently be locked by pushing it to, without a renewed actuation of the cylinder lock, there is provided an axially moveable slide (1) which, in the event of the action of a corresponding force from a drawer hook on the locking strip (3), springs in counter to a spring element (2) and thereby allows the locking strip to be snapped open and shut, so that the drawer which has remained open can subsequently be locked. <IMAGE>

Description

Die Erfindung betrifft eine zentrale Absperrvorrichtung für Schubladenschränke nach dem Oberbegriff des Anspruchs 1.The invention relates to a central locking device for drawer cabinets according to the preamble of claim 1.

Derartige zentrale Absperrvorrichtungen finden beispielsweise Anwendung bei Schubladenstahlschränken, in denen Werkzeuge gelagert werden. Bei einer solchen Absperrvorrichtung können über ein zentrales Zylinderschloß sämtliche Schubladen des Schranks gleichzeitig abgesperrt bzw. entriegelt werden.Such central locking devices are used, for example, in steel drawer cabinets in which tools are stored. With such a locking device, all drawers of the cabinet can be locked or unlocked simultaneously via a central cylinder lock.

Es sind Absperrvorrichtungen bekannt, bei denen mit dem Schlüssel eines Zylinderschlosses über entsprechende Umlenkvorrichtungen eine Verriegelungsleiste betätigt wird, die um ihre Längsachse in zwei Anschlagspositionen gedreht werden kann. In der einen Anschlagsposition umgreift die Verriegelungsleiste entsprechend ausgebildete Verriegelungshaken sämtlicher Schubladen und auf diese Weise sind alle Schubladen des Schranks verriegelt. In der zweiten Position gibt die Verriegelungsleiste sämtliche Schubladen frei, so daß diese nach Bedarf geöffnet werden können. Die Verriegelungsleiste erstreckt sich also in ihrer Länge über sämtliche Schubladen.Shut-off devices are known in which a locking bar is actuated with the key of a cylinder lock via corresponding deflection devices and can be rotated about its longitudinal axis in two stop positions. In the one stop position, the locking bar engages appropriately designed locking hooks of all the drawers and in this way all the drawers of the cabinet are locked. In the second position, the locking bar releases all drawers so that they can be opened as required. The length of the locking bar extends across all drawers.

Beim Absperren des Schranks müssen sämtliche Schubladen so geschlossen sein, daß sie sich in ihrer Endanschlagsposition befinden, damit die Verriegelungsleiste die Verriegelungshaken aller Schubladen umgreifen kann. In der Praxis kommt es häufig vor, daß nach dem Absperren des Schranks einzelne Schubladen noch offen sind. Bei dem Versuch, die offengebliebenen Schubladen nachträglich zu verriegeln, ohne das Schloß nochmals auf- und wieder zuzusperren, schlägt der Benutzer die Schubladen mit Gewalt zu und dadurch kommt es zu Beschädigungen an der Verriegelungsleiste und ein ordnungsgemäßes Funktionieren der Absperrvorrichtung ist u.U. nicht mehr gewährleistet.When the cabinet is locked, all drawers must be closed so that they are in their end stop position so that the locking bar can grip the locking hooks of all drawers. In practice it often happens that after the cabinet is closed, individual drawers are still open. If you try to lock the open drawers retrospectively without opening and closing the lock again, the user slams the drawers forcefully and this causes damage to the locking bar and the locking device may no longer function properly.

Das durch die Erfindung zu lösende Problem besteht darin, eine zentrale Absperrvorrichtung zur Verfügung zu stellen, bei der Schubladen, die nach dem Absperren des Schranks versehentlich offengeblieben sind, nachträglich noch verriegelt werden können, ohne das Schloß neu betätigen zu müssen und ohne die Absperrvorrichtung zu beschädigen.The problem to be solved by the invention is to provide a central locking device in which drawers which are accidentally left open after the cabinet has been locked can still be locked subsequently without having to operate the lock again and without the locking device being closed to damage.

Erfindungsgemäß wird dieses Problem für eine zentrale Absperrvorrichtung für Schubladenschränke durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen sind Gegenstand der Unteransprüche.According to the invention, this problem is solved for a central locking device for drawer cabinets by the features of claim 1. Advantageous refinements are the subject of the dependent claims.

Bei der Erfindung ist ein axial beweglicher Schieber vorgesehen, der sich über ein Federelement am Riegel der Absperrvorrichtung abstützt und der über eine Führungsstange mit der Verriegelungsleiste zusammenwirkt, so daß sich die Verriegelungsleiste bei abgesperrtem Schloß nachträglich noch von der Verriegelungs-Anschlagsposition in die Entriegelungs-Anschlagsposition zurückfedern läßt. Wenn also eine nach dem Absperren des Schranks versehentlich offengebliebene Schublade nachträglich zugestoßen wird, drückt der Verriegelungshaken an der Schublade die Verriegelungsleiste in die eingefederte Entriegelungsposition und die Verriegelungsleiste federt anschließend selbsttätig in die Verriegelungsposition zurück, sobald die Schublade ihre Endanschlagsposition erreicht hat. Auf diese Weise ist also ein nachträgliches Verriegeln versehentlich offengebliebener Schubladen ohne Betätigung des Schlosses und ohne Beschädigung der Absperrvorrichtung möglich.In the invention, an axially movable slide is provided, which is supported by a spring element on the bolt of the locking device and which interacts via a guide rod with the locking bar, so that the locking bar subsequently locked when the lock is locked from the locking stop position to the unlocking stop position spring back. If a drawer accidentally left open after the cabinet has been locked is subsequently pushed in, the locking hook on the drawer pushes the locking bar into the spring-loaded unlocking position and the locking bar then springs back automatically into the locking position as soon as the drawer has reached its end stop position. In this way it is possible to subsequently lock drawers that have been accidentally left open without actuating the lock and without damaging the locking device.

In einer vorteilhaften Ausführung der Erfindung ist der Schieber innerhalb des Riegels angeordnet. Dadurch ist der Schieber optimal in bisher bekannte Konstruktionen für zentrale Absperrvorrichtungen integriert.In an advantageous embodiment of the invention, the slide is arranged inside the bolt. As a result, the slide is optimally integrated into previously known designs for central shut-off devices.

Um eine gute Führung des Schiebers innerhalb des Riegels zu erreichen, ist es zweckmäßig, daß der Außenquerschnitt des Schiebers im wesentlichen mit dem Innenquerschnitt des Riegels übereinstimmt.In order to achieve good guidance of the slide within the bolt, it is expedient for the outer cross section of the slide to substantially match the inner cross section of the bolt.

Weiterhin ist es vorteilhaft, wenn das Federelement in Form einer Schraubenfeder ausgebildet ist, weil sich hierdurch eine einfache, preiswerte und zuverlässige Lösung ergibt.It is also advantageous if the spring element is designed in the form of a helical spring, because this results in a simple, inexpensive and reliable solution.

Ferner ist es günstig, in dem der Führungsstange abgewandten Ende des Schiebers eine Ausnehmung in Richtung seiner Bewegungsrichtung vorzusehen, in der sich das eine Ende des Federelements abstützt. Auf diese Weise wird die bauliche Länge der Kombination von Schieber und Feder gering gehalten.Furthermore, it is expedient to provide a recess in the end of the slide facing away from the guide rod in the direction of its direction of movement, in which one end of the spring element is supported. In this way, the structural length of the combination of slide and spring is kept short.

In einer weiteren bevorzugten Ausführungsform ist für das Federelement eine Führung vorgesehen. Diese Führung kann als Stange ausgebildet sein, auf der sich das Federelement verschieben läßt. Eine solche Stange kann mit dem einen Ende z.B. in einer Ausnehmung des Schiebers befestigt sein und für das andere Ende der Stange kann eine Öffnung im Riegel vorgesehen sein, damit die Stange beim Einfedern des Schiebers verschiebbar ist.In a further preferred embodiment, a guide is provided for the spring element. This guide can be designed as a rod on which the spring element can be moved. Such a rod can e.g. be fixed in a recess of the slide and an opening in the bolt can be provided for the other end of the rod so that the rod is displaceable when the slide is deflected.

Für die Ausführung der Erfindung ist es außerdem günstig, wenn die Federsteifigkeit des Federelements so gewählt wird, daß der Schieber während eines ordnungsgemäßen Verstellvorgangs der Verriegelungsleiste aus einer Anschlagsposition in die andere gerade noch nicht einfedert. Damit wird erreicht, daß die zu einer nachträglichen Einfederung der Verriegelungsleiste aus der Verriegelungsposition in die Entriegelungsposition nötigen Kräfte möglichst gering bleiben.For the implementation of the invention, it is also advantageous if the spring stiffness of the spring element is selected so that the slide does not yet deflect from one stop position into the other during a correct adjustment process of the locking bar. This ensures that the forces necessary for subsequent deflection of the locking bar from the locking position into the unlocking position remain as low as possible.

Für eine preiswerte und einfache Herstellung des Schiebers ist es zudem günstig, wenn dieser aus Kunststoff gefertigt wird.For an inexpensive and simple manufacture of the slide it is also favorable if it is made of plastic.

Im folgenden soll die Erfindung anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert werden. Es zeigt:

Fig. 1
eine Vorderansicht der zentralen Absperrvorrichtung im Schnitt I-I (Blickrichtung parallel zur Bewegungsrichtung der Schubladen),
Fig. 2
eine Draufsicht auf die zentrale Absperrvorrichtung im Schnitt II-II,
Fig. 3
eine Draufsicht auf die zentrale Absperrvorrichtung im Schnitt III-III,
Fig. 4
eine Prinzipdarstellung der Ausgangsposition des Schiebers in der Draufsicht,
Fig. 5
eine Prinzipdarstellung der eingefederten Position des Schiebers in der Draufsicht,
Fig. 6
eine Draufsicht auf die zentrale Absperrvorrichtung (Führungsstange unter Riegelhaken eingeschnappt).
The invention will be explained in more detail below with reference to an embodiment shown in the drawings. It shows:
Fig. 1
a front view of the central locking device in section II (viewing direction parallel to the direction of movement of the drawers),
Fig. 2
a plan view of the central shut-off device in section II-II,
Fig. 3
a plan view of the central shut-off device in section III-III,
Fig. 4
a schematic representation of the starting position of the slide in plan view,
Fig. 5
a schematic representation of the sprung position of the slide in plan view,
Fig. 6
a plan view of the central locking device (guide rod snapped under latch hook).

In Fig. 1 und Fig. 2 erkennt man eine Übertragungsstange 7, die drehfest mit einer Nockenscheibe 6 verbunden ist. Die Übertragungsstange 7 überträgt unmittelbar die Drehbewegungen eines Schlüssels, der in den Schließkolben eines Zylinderschlosses eingesteckt ist (nicht dargestellt), an die Nockenscheibe 6. Diese weist eine Führungsschiene 23 auf, in der ein Zapfen 8 gleitet, der fest mit einem Riegel 4 verbunden ist. Der Riegel 4 ist so im Gehäusewinkelblech 11 gelagert, daß er in Richtung seiner Längsachse verschiebbar ist. Der Riegel 4 besteht aus einem Riegelblech 9, das ein U-förmiges Profil aufweist, in dessen Innenquerschnitt an einem Ende ein Anschlagblech 22 eingeschweißt ist und an dessen Seitenflächen zwei rechteckige Öffnungen 24, 25 vorgesehen sind. Innerhalb des Riegelblechs 9 befinden sich ein lösbar montierter Riegelhaken 20, der aus Kunststoff gefertigt ist und mit dem Riegelblech 9 fest verbunden ist, ein Schieber 1, ein Federelement 2 sowie ein Schieberanschlag 21 in Form eines aufgeschweißten rechteckigen Bleckstücks. Der Schieber 1 weist eine zylinderförmige Ausnehmung 26 auf, in der sich das Federelement 2, das als Schraubenfeder ausgeführt ist, mit seinem einen Ende abstützt, während sich das andere Ende des Federelements an dem Anschlagblech 22 abstützt. Das Federelement 2 ist gegen den Schieberanschlag 21 vorgespannt.In Fig. 1 and Fig. 2 can be seen a transmission rod 7 which is rotatably connected to a cam 6. The transmission rod 7 directly transmits the rotary movements of a key, which is inserted into the locking piston of a cylinder lock (not shown), to the cam disk 6. This has a guide rail 23 in which a pin 8 slides, which is firmly connected to a bolt 4 . The bolt 4 is mounted in the housing bracket plate 11 that it can be displaced in the direction of its longitudinal axis. The bolt 4 consists of a locking plate 9, which has a U-shaped profile, in its inner cross section A stop plate 22 is welded in at one end and two rectangular openings 24, 25 are provided on the side faces thereof. Inside the locking plate 9 are a detachably mounted locking hook 20, which is made of plastic and is firmly connected to the locking plate 9, a slide 1, a spring element 2 and a slide stop 21 in the form of a welded rectangular piece of sheet metal. The slide 1 has a cylindrical recess 26, in which the spring element 2, which is designed as a helical spring, is supported with one end, while the other end of the spring element is supported on the stop plate 22. The spring element 2 is biased against the slide stop 21.

In der Fig. 1 und der Fig. 2 ist weiterhin eine Verriegelungsleiste 3 zu sehen, die über zwei an ihren Enden befindliche, fest mit ihr verbundene Lagerstangen 12, 13 um eine zu ihrer Längsachse parallele Achse drehbar gelagert ist. In axialer Richtung wird die Verriegelungsleiste 3 dabei durch eine Lager- und Distanzbuchse 19 sowie eine Distanzklammer 27 unverschiebbar festgelegt. Weiterhin sind an der Verriegelungsleiste 3 an ihren beiden Enden Führungsstangen 5, 16 angebracht, wobei die Führungsstange 5 über eine Aussparung 28 und die Öffnung 25 in das Innere des Riegels 4 hineingeführt ist und die Führungsstange 16 mittels einer Lagerbuchse 18 in einer zur Aussparung 28 kongruenten Aussparung 17 (vgl. Fig. 3) geführt wird. An der Führungsstange 16 ist eine Feder 15 befestigt, die sich am Gehäusewinkelblech 14 abstützt und die Führungsstange 16 und somit auch die Verriegelungsleiste 3 in einer der beiden Endanschlagspositionen der Aussparung 17 festhält. Die Verriegelungsleiste 3 selbst ist als Profilblech ausgebildet und erstreckt sich in ihrer Länge über alle Schubladen des Schranks.In Fig. 1 and Fig. 2, a locking bar 3 can also be seen, which is rotatably mounted about two axes at its ends, firmly connected to it bearing rods 12, 13 about an axis parallel to its longitudinal axis. In the axial direction, the locking bar 3 is fixed immovably by a bearing and spacer bush 19 and a spacer 27. Furthermore, guide rods 5, 16 are attached to the locking bar 3 at both ends, the guide rod 5 being introduced into the interior of the bolt 4 via a recess 28 and the opening 25 and the guide rod 16 being congruent with the recess 28 by means of a bearing bush 18 Recess 17 (see FIG. 3) is performed. A spring 15 is fastened to the guide rod 16, which is supported on the housing angle plate 14 and holds the guide rod 16 and thus also the locking bar 3 in one of the two end stop positions of the recess 17. The locking bar 3 itself is designed as a profiled sheet and extends in length over all drawers of the cabinet.

Die Gehäusewinkelbleche 11, 14 sind fest mit der Gehäusewand 29 des Schubladenschranks verbunden, z.B. durch Verschweißung.The housing angle plates 11, 14 are firmly connected to the housing wall 29 of the drawer cabinet, e.g. by welding.

Fig. 3 zeigt, wie die Lagerbuchse 18 und die mit ihr über die Führungsstange 16 verbundene Verriegelungsleiste 3 von der Feder 15 in einer Endanschlagsposition der Aussparung 17 gehalten wird. Außerdem erkennt man in dieser Figur die Lagerbuchse 19, die die Verriegelungsleiste 3 über die Lagerstange 13 drehbar lagert.Fig. 3 shows how the bearing bush 18 and the locking bar 3 connected to it via the guide rod 16 are held by the spring 15 in an end stop position of the recess 17. In addition, the bearing bush 19 can be seen in this figure, which rotatably supports the locking bar 3 via the bearing rod 13.

Fig. 1, Fig. 2 und Fig. 3 zeigen die Stellung der Absperrvorrichtung, bei der der Schubladenschrank abgesperrt ist und die Verriegelungsleiste 3 sämtliche Schubladen verriegelt. Dabei umgreift die Verriegelungsleiste 3 jeweils einen Verriegelungshaken, der an der Rückseite jeder Schublade angebracht ist (nicht dargestellt). An jeder Schublade ist ferner ein zweiter, nicht dargestellter Haken befestigt, auf den weiter unten in Zusammenhang mit Fig. 6 noch eingegangen wird.Fig. 1, Fig. 2 and Fig. 3 show the position of the shut-off device, in which the drawer cabinet is locked and the locking bar 3 locks all drawers. The locking bar 3 engages around a locking hook, which is attached to the back of each drawer (not shown). A second hook (not shown) is also attached to each drawer, which will be discussed further below in connection with FIG. 6.

Bezugnehmend auf die Fig. 1 bis 3 wird im folgenden das Funktionsprinzip der zentralen Absperrvorrichtung näher erläutert. Soll der Schubladenschrank aufgesperrt werden, soll also die Verriegelungsleiste 3 von der dargestellten Verriegelungsposition in die Entriegelungsposition gebracht werden, wird der Schlüssel und die über die Übertragungsstange 7 mit dem Schlüssel drehfest verbundene Nockenscheibe 6 nach rechts gedreht. Dadurch wird der Zapfen 8 und der über die Anschlußplatte 30 mit diesem verbundene Riegel 4 entlang der Längsachse des Riegels nach rechts verschoben, weil der Zapfen 8 in der Kurvenschiene 23 der Nockenscheibe 6 zwangsgeführt ist. Bei dieser Axialverschiebung des Riegels 4 verschiebt gleichzeitig eine Steuerfläche 31 des Riegelhakens 20 die Führungsstange 5 nach rechts. Dies führt zu einer Drehung der Verriegelungsleiste 3 um die Drehachse der Lagerstangen 12, 13. Wie sich anhand von Fig. 3 nachvollziehen läßt, wird dabei die mit der Führungsstange 16 verbundene Lagerbuchse 18 von ihrer dargestellten Endanschlagsposition in die zweite Endanschlagsposition überführt, in der sie dann von der Feder 15 gehalten wird. Die Verriegelungsleiste 3 befindet sich dann in der Entriegelungs-Position (vgl. Stellung der Verriegelungsleiste in Fig. 5) und der Verriegelungshaken jeder Schublade wird freigegeben.1 to 3, the principle of operation of the central shut-off device is explained in more detail below. If the drawer cabinet is to be unlocked, that is to say the locking bar 3 is to be moved from the locking position shown into the unlocking position, the key and the cam disk 6, which is non-rotatably connected to the key via the transmission rod 7, is turned to the right. Characterized the pin 8 and the bolt 4 connected to it via the connecting plate 30 is shifted to the right along the longitudinal axis of the bolt, because the pin 8 is positively guided in the cam 23 of the cam disk 6. During this axial displacement of the bolt 4, a control surface 31 of the bolt hook 20 simultaneously displaces the guide rod 5 right. This leads to a rotation of the locking bar 3 about the axis of rotation of the bearing rods 12, 13. As can be seen from FIG. 3, the bearing bush 18 connected to the guide rod 16 is transferred from its illustrated end stop position into the second end stop position, in which it then held by the spring 15. The locking bar 3 is then in the unlocking position (cf. position of the locking bar in FIG. 5) and the locking hook of each drawer is released.

Beim beschriebenen Öffnungs- bzw. Entriegelungsvorgang der Verriegelungsleiste 3 durch Betätigung des Schlüssels im Zylinderschloß schiebt also der im Riegel 4 befindliche Riegelhaken 20 die Führungsstange 5 nach rechts und leitet dadurch die gewünschte Drehbewegung der Verriegelungsleiste 3 ein. Dabei wirkt keine Last auf die Steuerfläche 32 des Schiebers 1, der ebenso wie der Riegelhaken 20 aus Kunststoff gefertigt werden kann.In the described opening or unlocking process of the locking bar 3 by actuating the key in the cylinder lock, the locking hook 20 located in the locking bar 4 pushes the guide rod 5 to the right and thereby initiates the desired rotational movement of the locking bar 3. No load acts on the control surface 32 of the slide 1, which, like the locking hook 20, can be made of plastic.

Beim umgekehrten Vorgang, also beim Rückführen der Verriegelungsleiste 3 aus der geöffneten, entriegelten Stellung (vgl. Stellung der Verriegelungsleiste in Fig. 5) in die Verriegelungsstellung, wird der Riegel 4 durch die entsprechende Linksdrehung des Schlüssels bzw. der Nockenscheibe 6 am Zapfen 8 nach links gezogen, wobei jetzt der Schieber 1 die Führungsstange 5 anschiebt, die sich in der Endanschlagsposition wie in Fig. 5 befindet. Das Federelement 2 ist hierbei so gegen den Schieberanschlag 21 vorgespannt, daß die Kraftübertragung des Schiebers 1 an die Führungsstange 5 gerade erfolgen kann, ohne daß der Schieber einfedert. Von der Steuerfläche 32 des Schiebers 1 wird die Führungsstange 5 in einer Drehbewegung in die Verriegelungsposition überführt, wobei die Feder 15 die Verriegelungsleiste 3 in dieser Position festhält.In the reverse process, i.e. when the locking bar 3 is returned from the open, unlocked position (cf. position of the locking bar in FIG. 5) to the locking position, the bolt 4 is turned by the corresponding left turn of the key or the cam 6 on the pin 8 pulled to the left, now the slide 1 pushes the guide rod 5, which is in the end stop position as in Fig. 5. The spring element 2 is prestressed against the slide stop 21 in such a way that the force transmission of the slide 1 to the guide rod 5 can take place without the slide deflecting. From the control surface 32 of the slide 1, the guide rod 5 is transferred into the locking position in a rotational movement, the spring 15 holding the locking strip 3 in this position.

Durch das Zusammenspiel der Steuerflächen 31 und 32 des Riegelhakens 20 bzw. des Schiebers 1, die durch die Riegelbewegung axial verschoben werden, mit der Führungsstange 5 wird also die Verstellbewegung der Verriegelungsleiste 3 um deren Drehachse von der Verriegelungs- in die Entriegelungsposition oder umgekehrt erzielt.Through the interaction of the control surfaces 31 and 32 of the locking hook 20 or the slide 1, which are axially displaced by the locking movement, with the guide rod 5, the adjustment movement of the locking bar 3 about its axis of rotation from the locking position to the unlocking position or vice versa is achieved.

Wenn nun in dem Moment, in dem der Schubladenschrank abgesperrt wird, eine Schublade versehentlich nicht ganz in ihre Anschlagposition geschoben war, bleibt diese Schublade offen. In diesem Fall umgreift die Verriegelungsleiste 3 die Verriegelungshaken der übrigen Schubladen, während der Verriegelungshaken der offengebliebenen Schublade sich außerhalb der Verriegelungsleiste befindet. Bei bisher bekannten Ausführungen von zentralen Absperrvorrichtungen für Schubladenschränke muß der Benutzer in einem solchen Fall den Schrank mit dem Schlüssel nochmals aufsperren, die offengebliebene Schublade in ihre Anschlagposition zuschieben und den Schrank anschließend mit dem Schlüssel wieder absperren. Häufig versuchen aber Benutzer, die offengebliebene Schublade mit Gewalt zuzuschlagen, ohne das Schloß erneut zu betätigen. Dadurch kommt es zu Beschädigungen der Verriegelungsleiste, da der Verriegelungshaken der offengebliebenen Schublade gegen die Verriegelungsleiste schlägt und es an dieser zu Deformationen kommt, weil die Verriegelungsleiste starr in ihrer Verriegelungsposition fixiert ist.If, at the moment when the drawer cabinet is locked, a drawer was inadvertently not fully pushed into its stop position, this drawer remains open. In this case, the locking bar 3 engages around the locking hooks of the remaining drawers, while the locking hook of the drawer which remains open is located outside the locking bar. In previously known designs of central locking devices for drawer cabinets, the user has to unlock the cabinet again with the key in such a case, push the open drawer into its stop position and then lock the cabinet again with the key. Often, however, users try to force the open drawer shut without opening the lock again. This causes damage to the locking bar, since the locking hook of the drawer which remains open strikes the locking bar and this leads to deformations because the locking bar is rigidly fixed in its locking position.

Bei der Erfindung kann die Verriegelungsleiste 3 dagegen auch aus ihrer Verriegelungsposition nachträglich noch wegfedern. Wie in den Fig. 4 und 5 schematisch dargestellt ist, kann die Verriegelungsleiste 3 aus ihrer Verriegelungsposition (Fig. 4) in die geöffnete, entriegelte Position (Fig. 5) einfedern. Wirkt eine Kraft auf die Verriegelungsleiste 3 in Richtung des Federelements 2 (siehe Pfeil in Fig. 5), so wird diese über die Führungsstange 5 an den Schieber 1 übertragen, der die Feder zusammendrückt und sich axial - in Fig. 5 nach rechts - verschiebt.In the invention, however, the locking bar 3 can also later spring out of its locking position. As is shown schematically in FIGS. 4 and 5, the locking bar 3 can spring out of its locking position (FIG. 4) into the open, unlocked position (FIG. 5). A force acts on the locking bar 3 in the direction of the spring element 2 (see arrow in FIG. 5), it is transmitted via the guide rod 5 to the slide 1, which compresses the spring and moves axially - to the right in FIG. 5.

Bei der erfindungsgemäßen Anordnung kann eine beim Absperren des Schranks versehentlich offengebliebene Schublade auch nachträglich noch zugeschoben werden, ohne daß die Absperrvorrichtung mit dem Schlüssel betätigt werden muß. Beim nachträglichen Verriegeln einer offengebliebenen Schublade wirken die zwei Haken der Schublade so mit der Verriegelungsleiste 3 zusammen, daß ein Haken die Verriegelungsleiste gegen die Federkraft des Federelements 2 in die entriegelte Position drückt, so daß der zweite Haken der Schublade, der Verriegelungshaken, hinter die Verriegelungsleiste gelangen kann und darauf hin das Federelement 2 die Verriegelungsleiste wieder zurück in die Verriegelungsposition drückt, wobei dann die Verriegelungsleiste den Verriegelungshaken umgreift. Auf diese Weise kommt es beim nachträglichen Zuschlagen einer offengebliebenen Schublade bei versperrtem Schrank zu keiner Beschädigung der Verriegelungsleiste und zudem ist diese Schublade anschließend ordnungsgemäß verriegelt.In the arrangement according to the invention, a drawer which is accidentally left open when the cabinet is locked can also be subsequently pushed in without the locking device having to be actuated with the key. When a drawer that has remained open is subsequently locked, the two hooks of the drawer interact with the locking bar 3 in such a way that a hook presses the locking bar against the spring force of the spring element 2 into the unlocked position, so that the second hook of the drawer, the locking hook, behind the locking bar can reach and then the spring element 2 presses the locking bar back into the locking position, the locking bar then engaging around the locking hook. In this way there is no damage to the locking bar when a drawer that has remained open is locked when the cabinet is locked, and this drawer is then properly locked.

Wie bereits im vorigen Abschnitt angedeutet, sind an jeder Schublade zwei Haken angebracht. Der eigentliche Verriegelungshaken wirkt mit der Verriegelungsleiste zum Versperren oder Öffnen der Schubladen bei Betätigung des Schlosses zusammen. Das Zusammenspiel des zweiten Hakens mit der Verriegelungsleiste bewirkt, daß man jeweils nur eine Schublade aufziehen kann und eine zweite Schublade erst dann öffnen kann, wenn die erste Schublade wieder zugemacht worden ist. Wenn die Schubladen z.B. mit schweren Werkzeugen beladen sind und man mehrere Schubladen gleichzeitig öffnen könnte, könnte der Schrank sonst umkippen, wenn der Schwerpunkt zu weit nach außen verlagert wird.As indicated in the previous section, there are two hooks on each drawer. The actual locking hook interacts with the locking bar to lock or open the drawers when the lock is operated. The interaction of the second hook with the locking bar means that only one drawer can be opened at a time and a second drawer can only be opened when the first drawer has been closed again. If, for example, the drawers are loaded with heavy tools and you could open several drawers at the same time, the cabinet could otherwise tip over if the center of gravity is shifted too far outwards.

Der zweite Haken, der dem ersten gegenüberliegt und etwas versetzt angeordnet ist, hat dann, wenn der Schrank nach Betätigung des Schlosses aufgesperrt ist, die Aufgabe, beim Herausziehen einer Schublade die Verriegelungsleiste sofort hinter dieser Schublade wieder in die Verriegelungsposition zu drücken. Dabei gleitet die Führungsstange 5 unter den Riegelhaken 20 und liegt dort an der Führungsfläche 33 an. Diese Position ist in Fig. 6 dargestellt. Die Verriegelungsleiste 3 selbst befindet sich hierbei zwar in der gleichen Stellung wie in den Fig. 1 bis 3 dargestellt, jedoch steht der Riegel 4 weiter rechts, als wenn die Verriegelungsleiste durch Absperren des Schranks verriegelt wird, denn der Riegel befindet sich ja noch in der gleichen Position, wie man sie erhält, wenn man den Schrank aufsperrt und damit die Verriegelungsleiste öffnet. Weil der Riegelhaken entsprechend geformt ist und elastisch federt, kann die Verriegelungsleiste durch eine direkt auf sie aufgebrachte, entsprechend gerichtete Kraft, die vom zweiten Haken an der Schubladenrückseite bei der Schubladenbetätigung übertragen wird, auf- und zugedrückt werden.The second hook, which lies opposite the first and is arranged somewhat offset, has the task, when the locker is unlocked after the lock has been actuated, of pressing the locking bar immediately behind this drawer into the locking position when a drawer is pulled out. The guide rod 5 slides under the locking hook 20 and rests there on the guide surface 33. This position is shown in Fig. 6. The locking bar 3 itself is in the same position as shown in FIGS. 1 to 3, but the latch 4 is further to the right than when the locking bar is locked by locking the cabinet, because the latch is still in the same position as you get when you unlock the cabinet and thus open the locking bar. Because the locking hook is shaped accordingly and resiliently springs, the locking bar can be pressed open and closed by a directly directed, correspondingly directed force, which is transmitted by the second hook on the back of the drawer when the drawer is actuated.

Dieses beschriebene Auf- und Zudrücken der Verriegelungsleiste aus Gründen des Schrankgleichgewichts durch einen entsprechend geformten Haken an der Schubladenrückseite kann nur stattfinden, solange das Schrankschloß aufgesperrt ist. Im Gegensatz dazu kann bei der vorliegenden Erfindung die Verriegelungsleiste bei abgesperrtem Schrankschloß in die Entriegelungsposition einfedern und anschließend wieder in die Verriegelungsposition zurückfedern.This described opening and closing of the locking bar for the sake of the cabinet balance by a suitably shaped hook on the back of the drawer can only take place as long as the cabinet lock is unlocked. In contrast to this, in the present invention the locking bar can deflect into the unlocking position when the cabinet lock is locked and then spring back into the locking position.

Claims (9)

  1. Central locking device for drawer cabinets, consisting of
    - a cylinder lock, a cam plate (6) and a transmission rod (7) between cylinder lock and cam plate (6),
    - a sliding bolt (4) which cooperates with the cam plate, and
    - a locking bar (3) which is axially fixed and rotatable about an axis parallel to its longitudinal axis and cooperates with the bolt (4) via a guide rod (5) rigidly connected to it, in such a way that
    - by the cylinder lock the rotary movement of a key is transmitted to the locking bar (3) and the locking bar (3) can adopt in each case one of two end stop positions,
    characterised in that
    - on the bolt (4) is provided a slide (1) which is movable in the direction of bolt movement and cooperates with the guide rod (5) of the locking bar (3) and which is supported on the bolt (4) by means of a spring element (2) acting in the direction of bolt movement.
  2. Central locking device for drawer cabinets according to claim 1, characterised in that for the slide (1) a stop (21) is formed on the bolt (4), so that the spring element (2) is biased.
  3. Central locking device for drawer cabinets according to claim 1 or 2, characterised in that the slide (1) is arranged inside the bolt (4).
  4. Central locking device for drawer cabinets according to claim 3, characterised in that the outside cross-section of the slide (1) essentially corresponds to the inside cross-section of the bolt (4).
  5. Central locking device for drawer cabinets according to any of claims 1 to 4, characterised in that the spring element (2) is a coil spring.
  6. Central locking device for drawer cabinets according to any of claims 1 to 5, characterised in that the slide (1) comprises a recess (26) in the direction of its movement, in which is supported one end of the spring element (2).
  7. Central locking device for drawer cabinets according to any of claims 1 to 6, characterised in that a rod is provided for guiding the spring element (2).
  8. Central locking device for drawer cabinets according to any of claims 2 to 7, characterised in that the bias of the spring element (2) is selected so that the slide does not yet deflect out of one end stop position into the other during a regular displacement process of the locking bar (3).
  9. Central locking device for drawer cabinets according to any of claims 1 to 8, characterised in that the slide (1) is made of plastic.
EP93117395A 1992-10-30 1993-10-27 Central retaining device for a raildrawer cupboard Expired - Lifetime EP0595289B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4236764 1992-10-30
DE4236764A DE4236764C1 (en) 1992-10-30 1992-10-30 Central locking device for drawer cabinets

Publications (2)

Publication Number Publication Date
EP0595289A1 EP0595289A1 (en) 1994-05-04
EP0595289B1 true EP0595289B1 (en) 1996-04-10

Family

ID=6471788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93117395A Expired - Lifetime EP0595289B1 (en) 1992-10-30 1993-10-27 Central retaining device for a raildrawer cupboard

Country Status (3)

Country Link
EP (1) EP0595289B1 (en)
AT (1) ATE136617T1 (en)
DE (2) DE4236764C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ2013498A3 (en) * 2013-06-26 2014-06-25 Alfa 3 Spol S R.O. Device for central locking of chest of drawers

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1553549A1 (en) * 1965-02-09 1970-01-29 Paul Erismann Central lock on a drawer unit with several drawers
FR1437143A (en) * 1965-06-15 1966-04-29 Cie Du Roneo Lock for metal furniture with drawers
DE2315109A1 (en) * 1973-03-27 1974-10-10 Heinrich Dringenberg Fa CABINET WITH SEVERAL OVERLOOKING DRAWERS
CH636670A5 (en) * 1979-01-16 1983-06-15 Erismann Emag Norm Ag Cupboard having a plurality of drawers arranged one above the other
CH672654A5 (en) * 1987-06-11 1989-12-15 Emag Norm Ag

Also Published As

Publication number Publication date
ATE136617T1 (en) 1996-04-15
EP0595289A1 (en) 1994-05-04
DE59302181D1 (en) 1996-05-15
DE4236764C1 (en) 1994-07-14

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