EP0045348B1 - Permutation lock with a cam disc and tumbler discs - Google Patents

Permutation lock with a cam disc and tumbler discs Download PDF

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Publication number
EP0045348B1
EP0045348B1 EP19810102263 EP81102263A EP0045348B1 EP 0045348 B1 EP0045348 B1 EP 0045348B1 EP 19810102263 EP19810102263 EP 19810102263 EP 81102263 A EP81102263 A EP 81102263A EP 0045348 B1 EP0045348 B1 EP 0045348B1
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EP
European Patent Office
Prior art keywords
lever
bolt
key
permutation lock
coupling
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
Application number
EP19810102263
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German (de)
French (fr)
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EP0045348A1 (en
Inventor
Ulrich Marold
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.)
Theodor Kromer & Cokg Spezialfabrik fur Sicherheitsschlosser GmbH
Original Assignee
Theodor Kromer & Cokg Spezialfabrik fur Sicherheitsschlosser GmbH
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Priority to AT81102263T priority Critical patent/ATE7064T1/en
Publication of EP0045348A1 publication Critical patent/EP0045348A1/en
Application granted granted Critical
Publication of EP0045348B1 publication Critical patent/EP0045348B1/en
Expired legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B37/00Permutation or combination locks; Puzzle locks
    • E05B37/08Permutation or combination locks; Puzzle locks with tumbler discs on a single axis, all the discs being adjustable by a rotary knob which is not shifted for adjusting the discs
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/70Operating mechanism
    • Y10T70/7153Combination
    • Y10T70/7181Tumbler type
    • Y10T70/7198Single tumbler set
    • Y10T70/7237Rotary or swinging tumblers
    • Y10T70/7243Interset tumblers
    • Y10T70/7249Tumblers released
    • Y10T70/7254Fence held spaced from tumblers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/70Operating mechanism
    • Y10T70/7153Combination
    • Y10T70/7316Combination upsetting

Definitions

  • the invention relates to a permutation lock with a cam disc which can be actuated by means of a rotary knob for setting a plurality of setting secrets, the circumference of which is provided with a tumbler disc each with an incidence recess, with an engagement lever articulated on a bolt which has a nose or the like engaging on the circumference of the cam disc. and has a lateral finger, which is arranged transversely over the circumferences of the tumbler disks, wherein for the entry of the finger into the associated recesses of each tumbler disk, when these are aligned with one another under the finger, an aperture for the latch lever is provided on the circumference of the cam disk, and wherein a cam of the cam disc is also provided for moving the bolt into its closed position.
  • Permutation locks of this type are known, for example, from DE-A-23 20 816 and DE-A 2816 969. With such permutation locks, it is possible to exclude the bolt with the help of the rotation of the cam disc, that is to say to move it into the closed position so that the tumbler discs have not yet been twisted or rejected. This can be a convenience for the frequent user of this permutation lock, because he then does not have to first set the number sequence according to the setting secret to reopen the lock. Such a bar, which is closed or closed, of course, does not perform its function properly. “Excluding” the bolt is understood to mean the closing movement that brings the bolt out of the lock into its closed position in the lock counterpart.
  • the solution to this problem consists essentially in the fact that a coupling is provided on the bolt which can be moved out of the region of the cam path of the cam disk for the bolt movement and which can only be brought into the region of the cam path after at least partially twisting at least one tumbler plate , only then to implement the rotary movement of the rotary knob in a displacement of the bolt in its closed position.
  • the principle of the invention is thus practically to delay the bolt movement by the releasable intermediate coupling mentioned and by disengaging it until at least one tumbler disc is rotated sufficiently far by the turning of the knob in the closing direction to prevent the finger of the lever in the orderly and aligned recesses could again occur.
  • the user of the lock therefore inevitably rotates at least one, or several, or all tumbler disks in a configuration of the invention described later, when carrying out the closing movement of the bolt.
  • the coupling is fastened to the bolt and is designed as a pivotable coupling lever which can be pivoted into its coupling position in particular by means of a projection located on a tumbler disc via a linkage.
  • a pivotable coupling lever which can be pivoted into its coupling position in particular by means of a projection located on a tumbler disc via a linkage.
  • the length of the lever which can be lifted out from behind a locking stop prior to the twisting of the tumbler disks for carrying out the closing movement can be changed. It is thereby achieved that the rotary knob is turned and the lever and its finger can already be lifted out of the recesses in the tumbler discs without the bolt already being moved. First and foremost, a shortening of the drop lever is possible, so that the drop area having the nose can already be raised and brought behind the locking stop without the corresponding movement of the lock taking place at the other end. If the initially delayed bolt movement is then carried out, the drop lever is lengthened again accordingly.
  • the drop lever is designed as a toggle lever attached to the bolt, one of the toggle levers of which is articulated directly on the bolt and can be swung up when the drop lever is raised while shortening the entire drop lever.
  • a stop can be provided on the side facing the bolt for extending the insertion lever when the bolt is excluded. If the rotary knob has been turned so far that the clutch lever has been pivoted into the functional position, the further rotary movement leads to the aforementioned exclusion movement of the bolt, which leads to a corresponding displacement of the articulation point of the toggle lever leg of the drop lever. If the toggle joint is now prevented from doing this movement, the entire toggle lever and thus the drop lever are stretched again. After a certain stretch, even the toggle joint can fall into its final locking position due to gravity.
  • the locking position of the bolt is often monitored by electrical means. However, this is of no use if the lock is not turned into a really secure position, i.e. if the tumbler disks have not all been discarded.
  • the present invention therefore has the additional advantage that such bolt monitoring can now be carried out in a really sensible manner.
  • a permutation lock designated as a whole by 1, hereinafter also referred to as lock 1 for short, has a cam disk 3 which can be actuated by a rotary knob (not shown in more detail) via a shaft 2 for setting a plurality of tumbler disks 5 which can be adjusted to any setting secrets and are provided on their circumference with a recess 4 each Furthermore, the lock 1 has an engagement lever articulated on a bolt 6, generally designated 7, which has a nose 8 engaging on the circumference of the cam disk 3 and a lateral finger 9 which is arranged transversely over the circumferences of the tumbler disks 5, wherein for the entry of the finger 9 into the associated recesses 4 of each tumbler disc 5, when these are aligned with one another under the finger 9, an incidence opening 10 for the lever 7 is provided on the circumference of the cam disc 3. On the cam disc 3, a cam 11 is also provided for moving the bolt 6 into its closed position.
  • a clutch lever 12 to be described in more detail below - is provided, which only after at least partially rotating at least one Locking disc 5 in the coupling position (FIG. 5), ie in the area of the path of the cam 11 is brinbar.
  • the clutch is fastened to the bolt and, as already mentioned, is designed as a pivotable clutch lever 12 which can be pivoted into its clutch position in particular by means of a projection 13 located on a tumbler disc 5a (see FIG. 1) via a linkage to be described.
  • the drop lever 7 is designed as a toggle lever attached to the latch 6, one of the toggle levers 15 of which is articulated directly to the latch 6 and when the drop lever 7 is lifted out, the entire drop lever is shortened to the position shown in FIG. 4 can be swung up.
  • a stop 17 is provided on the side facing the bolt 6 for extending the drop lever 7 when the bolt 6 is excluded. If the bolt 6 is shifted from the position shown in FIGS.
  • the projection 13 designed as a pin in the exemplary embodiment which of course could also be a recess into which a pin or the like element can fall from the other side, and serves to actuate the clutch lever 12 cooperating with the cam disk 3, is in the exemplary embodiment arranged on the last tumbler disc 5a seen from the cam disc 3, so that all tumbler discs must first be rotated before the clutch lever 12 reaches the engaged position according to FIG. 5 and the bolt 6 can be excluded by further rotation of the shaft 2. Under no circumstances does this exemplary embodiment enable the bolt 6 to be so narrowly excluded that the lock 1 could be opened again immediately without the opening secret having to be reset. At the same time, conclusions on the difference between the individual opening numbers are made impossible from the outset by this measure.
  • the coupling lever 12 articulated on the bolt 6 has two end positions which can be releasably fixed. This can be done in a manner not shown with the aid of locking balls and the like.
  • a magnet 19 engaging the clutch lever 12 itself or its actuating linkage is provided for the top position of the clutch lever 12, that is to say its disengaged state. This can hold the clutch lever 12 securely in the up position, but exerts practically no force on this lever after adjusting the clutch lever in the clutch position, in contrast to a return spring.
  • the cam 11 of the cam disk 3 is shaped and rounded in particular in its upper region at the transition 20 into the contour corresponding to the outer circumference of the cam disk 3 so that when the bolt 6 is closed to open the lock 1 on the correspondingly beveled and also engages the rounded end 21 of the clutch lever 12 and pivots it upwards. It is readily understandable and recognizable in the figures that when the cam disc moves against the arrow Pf 2, the area 20 detects the cam-shaped end 21 of this clutch lever when it protrudes into the contour of the cam disc 3 according to FIG a further rotation to the position shown in FIG. 3, where the clutch lever 12 can then be held by the magnet 19.
  • the actuating linkage which has already been mentioned a number of times, via which the clutch lever 12 returns to the clutch position, is formed in the exemplary embodiment in that on the inside 22 of the lock housing or lock case 23 facing away from the cam disk 3, a control lever 24 can be acted upon by the pin-like projection 13 of the tumbler disk 5a for control purposes of the clutch lever 12 - in the exemplary embodiment on a stud 25 - is mounted, which control lever 24 preferably has a slot guide 26, into which a pin 27 connected to the clutch lever 12 (cf. especially FIG. 1) engages.
  • control lever 24 consists of a partly stamped, partly varnish edged sheet metal part, the guide slot 26 being formed by angled legs 29. These legs 29 for forming the guide slot 26 could also be attached to a corresponding control lever 24.
  • a counter force directed against its locking movement i.e. against the arrow Pf 1
  • Shortening the drop lever 7 can result in a premature, at least partial exclusion of the bolt 6 in the direction of the arrow Pf 1.
  • the toggle lever geometry of the drop lever 7 is chosen so that when the drop lever 7 is stretched in the locked position according to FIG. 2, the imaginary connecting line from the locking edge 30 of the drop lever 7 to the swivel joint 18 on the bolt 6 extends above the toggle lever joint 16 and that the connecting line from that Point of engagement 31 of the cam disk 3 on the nose 8 of the drop lever 7 to the swivel joint 18 on the bolt 6 runs below the middle toggle joint 16, a support 32 being provided downward for the toggle joint 16 to fix this position.
  • an actuating pawl 34 is provided on the free end of the control lever 24, the front side 35 of which is concave, this concave curve region of the front side 35 being arranged in such a way that that in the disengaged state (cf. especially Fig. 4) cuts the swivel circle of the projection 13 located on the tumbler disc 5a, while in the coupled state (cf. Fig. 5) this contour of the clamp 34 with the swivel path of the outermost point or the outermost surface line 36 of the projection 13 of the tumbler disc 5a approximately coincides.
  • the center point of the circular arc forming the concave contour of the end face 35 of the pawl 34 of the control lever 24 lies to the side of the imaginary center line through the pawl 34 and its pivot bearing 37, so that the contour into the coaxial position only becomes when the control lever is pivoted into the coupling position reaches the center of the cam disk 3.
  • the pawl 34 is namely pivotally mounted relative to the control lever 24, the pivoting path of the pawl 34 on this control lever 24 in the direction of the coupling movement being limited or prevented by a stop 38 and a counterforce in the opposite pivoting, in the exemplary embodiment the force of a spring 39 must be overcome. This makes it possible to turn the tumbler disc 5a with the projection 13 in the position shown in FIG. 4 against the direction of the arrow Pf 2 without damage to this projection or the pawl, because then the pawl 34 is the projection 13 can escape under tension of the spring 39.
  • the bolt movement itself is formed in a known manner by a guide pin 41 engaging in an elongated slot 40 and a projection 43 connected to the bolt and sliding on the inside of the lock case 42.

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  • Lock And Its Accessories (AREA)
  • Mechanical Operated Clutches (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

A permutation lock wherein a locking bolt is reciprocable in a housing between extended and retracted position. The housing contains a set of coaxial tumblers rotatable by a cam having a lobe which can move the bolt to extended position through the medium of a coupling lever which is pivotally connected with the bolt. The coupling lever can be pivoted to an operative position, in which it extends into the path of movement of the lobe on the cam, only when at least one of the tumblers is moved from a predetermined position in which a notch in its peripheral surface is out of alignment with similar notches in the peripheral surfaces of the other tumblers. The bolt is movable to the retracted position by a locating lever which is pivoted to the bolt and has a pallet receivable in a recess of the lobe only when all of the notches are aligned with each other so that they can receive a finger which is provided on the locating lever and extends in parallelism with the common axis of the tumblers.

Description

Die Erfindung betrifft ein Permutationsschloß mit einer durch einen Drehknopf betätigbaren Nockenscheibe zur Einstellung mehrerer auf beliebige Einstellgeheimnisse einstellbar, an ihrem Umfang mit je einer Einfallausnehmung versehener Zuhaltungsscheiben, mit einem an einem Riegel angelenkten Einfallhebel, der eine am Umfang der Nockenscheibe angreifende Nase od. dgl. sowie einen seitlichen Finger aufweist, der quer über den Umfängen der Zuhaltungsscheiben angeordnet ist, wobei für den Eintritt des Fingers in die zugehörigen Einfallausnehmungen jeder Zuhaltungsscheibe, wenn diese miteinander unter dem Finger fluchten, am Umfang der Nockenscheibe eine Einfallöffnung für den Einfallhebel vorgesehen ist und wobei ferner ein Nocken der Nockenscheibe zum Verschieben des Riegels in seine Schließposition vorgesehen ist.The invention relates to a permutation lock with a cam disc which can be actuated by means of a rotary knob for setting a plurality of setting secrets, the circumference of which is provided with a tumbler disc each with an incidence recess, with an engagement lever articulated on a bolt which has a nose or the like engaging on the circumference of the cam disc. and has a lateral finger, which is arranged transversely over the circumferences of the tumbler disks, wherein for the entry of the finger into the associated recesses of each tumbler disk, when these are aligned with one another under the finger, an aperture for the latch lever is provided on the circumference of the cam disk, and wherein a cam of the cam disc is also provided for moving the bolt into its closed position.

Derartige Permutationsschlösser sind beispielsweise aus der DE-A-23 20 816 und der DE-A 2816 969 bekannt. Bei derartigen Permutationsschlössern besteht die Möglichkeit, den Riegel mit Hilfe der Drehung der Nockenscheibe so auszuschließen, daß heißt in Schließposition zu bewegen, daß die Zuhaltungsscheiben noch nicht wieder verdreht bzw. verworfen sind. Darin kann für den häufigen Benutzer dieses Permutationsschlosses eine Bequemlichkeit liegen, weil er dann für ein erneutes Öffnen des Schlosses nicht zunächst die Ziffernfolge gemäß dem Einstellgeheimnis einstellen muß. Ein derartig aus- bzw. zugeschlossener Riegel erfüllt aber natürlich seine Funktion nicht richtig. Unter « Ausschließen » des Riegels wird dabei die Schließbewegung verstanden, die den Riegel aus dem Schloß heraus in seine Schließstellung in dem Schloßgegenstück bringt.Permutation locks of this type are known, for example, from DE-A-23 20 816 and DE-A 2816 969. With such permutation locks, it is possible to exclude the bolt with the help of the rotation of the cam disc, that is to say to move it into the closed position so that the tumbler discs have not yet been twisted or rejected. This can be a convenience for the frequent user of this permutation lock, because he then does not have to first set the number sequence according to the setting secret to reopen the lock. Such a bar, which is closed or closed, of course, does not perform its function properly. “Excluding” the bolt is understood to mean the closing movement that brings the bolt out of the lock into its closed position in the lock counterpart.

Es besteht deshalb die Aufgabe, ein Permutationsschloß der eingangs erwähnten Art zu schaffen, bei welchem nach dem Ausschließen des Riegels der Finger nicht mehr in die Ausnehmungen der Zuhaltungsscheiben einfallen kann, bevor nicht das Einstellgeheimnis wieder vollständig eingestellt wurde.There is therefore the task of creating a permutation lock of the type mentioned, in which, after the locking of the latch, the fingers can no longer fall into the recesses of the tumbler disks until the setting secret has not been completely reset.

Die Lösung dieser Aufgabe besteht im wesentlichen darin, daß an dem Riegel eine aus dem Bereich des Weges des Nockens der Nockenscheibe für die Riegelbewegung heraus bewegbare Kupplung vorgesehen ist, welche erst nach zumindest teilweisem Verdrehen wenigstens einer Zuhaltungsscheibe in den Bereich des Weges des Nockens bringbar ist, um erst dann die Drehbewegung des Drehknopfes in eine Verschiebung des Riegels in dessen Schließstellung umzusetzen. Das Prinzip der Erfindung besteht also praktisch darin, die Riegelbewegung durch die erwähnte lösbare Zwischenkupplung und zwar durch deren Auskuppeln so lange zu verzögern, bis durch die Drehknopfdrehung in Schließrichtung wenigstens eine Zuhaltungsscheibe ausreichend weit verdreht ist, um zu verhindern, daß der Finger des Einfallhebels in die noch geordneten und fluchtenden Einfallausnehmungen wieder eintreten könnte. Der Benutzer des Schlosses verdreht also bei der Durchführung der Schließbewegung des Riegels zwangsläufig wenigstens eine, bei einer später noch beschriebenen Ausgestaltung der Erfindung mehere oder alle Zuhaltungsscheiben.The solution to this problem consists essentially in the fact that a coupling is provided on the bolt which can be moved out of the region of the cam path of the cam disk for the bolt movement and which can only be brought into the region of the cam path after at least partially twisting at least one tumbler plate , only then to implement the rotary movement of the rotary knob in a displacement of the bolt in its closed position. The principle of the invention is thus practically to delay the bolt movement by the releasable intermediate coupling mentioned and by disengaging it until at least one tumbler disc is rotated sufficiently far by the turning of the knob in the closing direction to prevent the finger of the lever in the orderly and aligned recesses could again occur. The user of the lock therefore inevitably rotates at least one, or several, or all tumbler disks in a configuration of the invention described later, when carrying out the closing movement of the bolt.

Besonders zweckmäßig ist es, wenn die Kupplung an dem Riegel befestigt und als schwenkbarer Kupplungshebel ausgebildet ist, der insbesondere mittels eines an einer Zuhaltungsscheibe befindlichen Vorsprunges über ein Gestänge in seine Kupplungsstellung schwenkbar ist. Auf diese Weise läßt sich konstruktiv sehr einfach realisieren, daß wenigstens eine Zuhaltungsscheibe zunächst verdreht werden muß, bevor die Drehung des Drehknopfes auch zu einer Verschiebung des Riegels in dessen Schließposition führt.It is particularly expedient if the coupling is fastened to the bolt and is designed as a pivotable coupling lever which can be pivoted into its coupling position in particular by means of a projection located on a tumbler disc via a linkage. In this way, it can be realized in a very simple design that at least one tumbler disc must first be rotated before the rotation of the rotary knob also leads to a displacement of the bolt in its closed position.

Zur Durchführung der erfindungsgemäßen Lehre ist es vorteilhaft und zweckmäßig, wenn der vor dem zur Durchführung der Schließbewegung erfolgenden Verdrehen der Zuhaltungsscheiben aus diesen hinter einen Sperranschlag aushebbare Einfallhebel in seiner Länge veränderbar ist. Dadurch wird erreicht, daß der Drehknopf verdreht und dabei der Einfallhebel und sein Finger schon aus den Einfallausnehmungen der Zuhaltungsscheiben ausgehoben werden kann, ohne daß der Riegel bereits bewegt wird. In erster Linie kommt dabei zunächst eine Verkürzung des Einfallhebels in Frage, damit der die Nase aufweisende Einfallbereich bereits angehoben und hinter den Sperranschlag gebracht werden kann, ohne daß am anderen Ende die entsprechende Bewegung des Riegels erfolgt. Wenn danach die zunächst verzögerte Riegelbewegung durchgeführt wird, wird der Einfallhebel wieder entsprechend gelängt. Dies läßt sich besonders einfach dadurch erreichen, daß der Einfallhebel als an dem Riegel befestigter Kniehebel ausgebildet ist, dessen einer Kniehebelschenkel unmittelbar an dem Riegel angelenkt ist und beim Ausheben des Einfallhebels unter Verkürzung des gesamten Einfallhebels hochschwenkbar ist.To carry out the teaching according to the invention, it is advantageous and expedient if the length of the lever which can be lifted out from behind a locking stop prior to the twisting of the tumbler disks for carrying out the closing movement can be changed. It is thereby achieved that the rotary knob is turned and the lever and its finger can already be lifted out of the recesses in the tumbler discs without the bolt already being moved. First and foremost, a shortening of the drop lever is possible, so that the drop area having the nose can already be raised and brought behind the locking stop without the corresponding movement of the lock taking place at the other end. If the initially delayed bolt movement is then carried out, the drop lever is lengthened again accordingly. This can be achieved in a particularly simple manner in that the drop lever is designed as a toggle lever attached to the bolt, one of the toggle levers of which is articulated directly on the bolt and can be swung up when the drop lever is raised while shortening the entire drop lever.

Im Bereich der Obenstellung des Kniehebelgelenkes kann auf dessen dem Riegel zugewandter Seite ein Anschlag zum Strecken des Einfallhebels beim Ausschließen des Riegels vorgesehen sein. Ist der Drehknopf so weit verdreht worden, daß der Kupplungshebel in Funktionsstellung geschwenkt wurde, führt die weitere Drehbewegung zu der schon erwähnten Ausschließbewegung des Riegels, die zu einer entsprechenden Verschiebung des Anlenkpunktes des Kniehebelschenkels des Einfallhebels führt. Wird nun das Kniehebelgelenk daran gehindert, diese Bewegung mitzumachen, wird der gesamte Kniehebel und damit der Einfallhebel wieder gestreckt. Ab einer gewissen Streckung kann dann sogar das Kniehebelgelenk aufgrund der Schwerkraft in seine endgültige Sperrposition fallen.In the region of the top position of the toggle joint, a stop can be provided on the side facing the bolt for extending the insertion lever when the bolt is excluded. If the rotary knob has been turned so far that the clutch lever has been pivoted into the functional position, the further rotary movement leads to the aforementioned exclusion movement of the bolt, which leads to a corresponding displacement of the articulation point of the toggle lever leg of the drop lever. If the toggle joint is now prevented from doing this movement, the entire toggle lever and thus the drop lever are stretched again. After a certain stretch, even the toggle joint can fall into its final locking position due to gravity.

Derartige Permutationsschlösser sind an sich nur dann richtig, d. h. so sicher wie möglich, verschlossen, wenn die Antriebsnocken der Zuhaltungsscheiben in einer Drehrichtung hintereinander auf Anschlag stehen. Dies bedeutet, daß beim Verschießen eines Permutationsschlosses der Drehknopf entsprechend oft in Schließstellung, nämlich noch um eine Umdrehung öfter weitergedreht werden muß, als es der Anzahl der Zuhaltungsscheiben entspricht. Selbst wenn also ein solches Permutationsschloß soweit verschlossen ist, daß der Finger des Einfallhebels nicht sogleich wieder in die Einfallausnehmungen der Zuhaltungsscheiben zurückfallen kann, die vorbeschriebene größere Anzahl von Umdrehungen aber noch nicht erfolgt ist, würden bei einem weiteren Verdrehen des Drehknopfes durch einen Unbefugten Rückschlüsse zumindest auf die Differenz zwischen den einzelnen Zahlen des Einstellgeheimnisses zugelassen. Eine Weiterbildung der Erfindung von ganz besonderer Bedeutung meistert dieses zusätzliche Problem unter gleichzeitiger noch verbesserter Lösung der eingangs erwähnten Aufgabe dadurch, daß der Vorsprung zur Betätigung des mit der Nockenscheibe zusammenwirkenden. Kupplungshebels zumindest an der - von der Nockenscheibe aus gesehen - letzten Zuhaltungsscheibe angeordnet ist. Dadurch wird nämlich erreicht, daß der Drehknopf zum Ausschließen des Riegels so oft gedreht werden muß, daß schon mehrere, vorzugsweise alle Zuhaltungsscheiben ihren jeweiligen Anschlag erreichen und danach keinerlei Rückschlüsse auf das Öffnungsgeheimnis mehr möglich sind. Befindet sich der Vorsprung an der letzten Zuhaltungsscheibe, müssen wirklich erst alle Zuhaltungsscheiben aus ihrer Öffnungsstellung verdreht werden, bevor die Kupplung für die Ausschließbewegung des Sperriegels in Tätigkeit tritt. Damit ist aber dann weder die eingangs beschriebene schlampige Verschließung des Schlosses möglich, noch können bei nicht genügend häufigem Durchdrehen des Drehknopfes Rückschlüsse auf das Öffnungsgeheimnis ermöglicht werden.Such permutation locks are only correct in themselves, d. H. closed as securely as possible when the drive cams of the tumbler disks are one after the other in one direction of rotation. This means that when a permutation lock is fired, the rotary knob must be turned a corresponding number of times in the closed position, namely one turn more often than it corresponds to the number of tumbler disks. Even if such a permutation lock is locked to such an extent that the finger of the lever can not immediately fall back into the recesses of the tumbler disks, but the above-mentioned larger number of turns has not yet taken place, at least if the rotary knob is turned further by an unauthorized person on the difference between the individual numbers of the setting secret. A further development of the invention of very special importance copes with this additional problem while at the same time improving the solution to the problem mentioned at the outset by virtue of the fact that the projection for actuating that interacting with the cam disk. Clutch lever is arranged at least on the last tumbler disc, as seen from the cam disc. This means that the rotary knob to exclude the bolt must be turned so often that several, preferably all tumbler disks reach their respective stops and afterwards no conclusions can be drawn as to the opening secret. If the protrusion is on the last tumbler disc, all tumbler discs really have to be turned out of their open position before the clutch for the locking bar's exclusion movement comes into operation. However, this means that the sloppy closure of the lock described at the outset is not possible, and conclusions about the secret of opening can be made possible if the rotary knob is not turned frequently enough.

Hinzu kommt, daß die Verschlußstellung des Riegels häufig mit elektrischen Mitteln überwacht wird. Dies nützt jedoch dann nichts, wenn das Schloß nicht in eine wirklich sichere Position verdreht ist, also die Zuhaltungsscheiben noch nicht alle verworfen sind. Die vorliegende Erfindung hat also den zusätzlichen Vorteil, daß eine solche Riegelüberwachung nun wirklich sinnvoll durchführbar ist.In addition, the locking position of the bolt is often monitored by electrical means. However, this is of no use if the lock is not turned into a really secure position, i.e. if the tumbler disks have not all been discarded. The present invention therefore has the additional advantage that such bolt monitoring can now be carried out in a really sensible manner.

Weiterbildungen der Erfindung und insbesondere konstruktive Ausgestaltungen der dabei vorgesehenen Hebel, Vorsprünge, Klinken u. dgl. sind Gegenstand weiterer Ansprüche.Developments of the invention and in particular constructive embodiments of the levers, projections, pawls and. The like. are the subject of further claims.

Nachstehend ist die Erfindung mit ihren ihr als wesentlich zugehörenden Einzelheiten anhand der Zeichnung noch näher beschrieben. Es zeigt :

  • Figur 1 einen Teilquerschnitt durch ein erfindungsgemäßes Permutationsschloß, wobei der Riegel ausgeschlossen ist,
  • Figur 2 eine Ansicht des Schlosses nach Fig. 1, wobei der Einfallhebel am Außenumfang der Zuhaltungsscheiben aufliegt und hinter seinem Sperranschlag gehalten ist,
  • Figur 3 eine der Fig. 2 entsprechende Ansicht des geöffneten Schlosses, nachdem mittels der Nockenscheibe und der Nase des Einfallhebels der Riegel zurückgezogen wurde,
  • Figur 4 das Permutationsschloß während der ersten Phase der Schließbewegung, bei der der Einfallhebel verkürzt, der Kupplungshebel aber noch nicht in Kupplungsposition ist, sowie
  • Figur 5 das Permutationsschloß im Augenblick des Einkuppelns des Kupplungshebels und des Angriffes des entsprechenden Betätigungsnockens der Nockenscheibe an diesem Kupplungshebel kurz vor der Verschiebung des Riegels wieder in die Schließstellung gemäß Fig. 1.
The invention is described in more detail below with its details that are essential to it, using the drawing. It shows :
  • FIG. 1 shows a partial cross section through a permutation lock according to the invention, the bolt being excluded,
  • FIG. 2 shows a view of the lock according to FIG. 1, the latch lever resting on the outer circumference of the tumbler disks and being held behind its locking stop,
  • 3 shows a view corresponding to FIG. 2 of the opened lock after the bolt has been withdrawn by means of the cam disk and the nose of the drop lever,
  • Figure 4 shows the permutation lock during the first phase of the closing movement, in which the drop lever shortens, but the clutch lever is not yet in the clutch position, and
  • 5 shows the permutation lock at the moment the clutch lever is engaged and the corresponding actuating cam of the cam disc is engaged on this clutch lever shortly before the bolt is moved back into the closed position according to FIG. 1.

Ein im ganzen mit 1 bezeichnetes Permutationsschloß, im folgenden auch kurz Schloß 1 genannt, hat eine durch einen nicht näher dargestellten Drehknopf über eine Welle 2 betätigbare Nockenscheibe 3 zur Einstellung mehrerer auf beliebige Einstellgeheimnisse einstellbarer, an ihrem Umfang mit je einer Einfallausnehmung 4 versehener Zuhaltungsscheiben 5. Ferner weist das Schloß 1 einen an einem Riegel 6 angelenkten, im ganzen mit 7 bezeichneten Einfallhebel auf, der eine am Umfang der Nockenscheibe 3 angreifende Nase 8 sowie einen seitlichen Finger 9 aufweist, der quer über den Umfängen der Zuhaltungsscheiben 5 angeordnet ist, wobei für den Eintritt des Fingers 9 in die zugehörigen Einfallausnehmungen 4 jeder Zuhaltungsscheibe 5, wenn diese miteinander unter dem Finger 9 fluchten, am Umfang der Nockenscheibe 3 eine Einfallöffnung 10 für den Einfallhebel 7 vorgesehen ist. An der Nockenscheibe 3 ist ferner ein Nocken 11 zum Verschieben des Riegels 6 in seine Schließposition vorgesehen.A permutation lock, designated as a whole by 1, hereinafter also referred to as lock 1 for short, has a cam disk 3 which can be actuated by a rotary knob (not shown in more detail) via a shaft 2 for setting a plurality of tumbler disks 5 which can be adjusted to any setting secrets and are provided on their circumference with a recess 4 each Furthermore, the lock 1 has an engagement lever articulated on a bolt 6, generally designated 7, which has a nose 8 engaging on the circumference of the cam disk 3 and a lateral finger 9 which is arranged transversely over the circumferences of the tumbler disks 5, wherein for the entry of the finger 9 into the associated recesses 4 of each tumbler disc 5, when these are aligned with one another under the finger 9, an incidence opening 10 for the lever 7 is provided on the circumference of the cam disc 3. On the cam disc 3, a cam 11 is also provided for moving the bolt 6 into its closed position.

In allen Figuren erkennt man deutlich, daß an dem Riegel 6 eine aus dem Bereich des Weges des Nockens 11 der Nockenscheibe 3 herausbewegbare Kupplung - im Ausführungsbeispiel ein im folgenden noch näher zu beschreibender Kupplungshebel 12 - vorgesehen ist, welche erst nach zumindest teilweisem Verdrehen wenigstens einer Zuhaltungsscheibe 5 in Kupplungsstellung (Fig. 5), d. h. in den Bereich des Weges des Nockens 11 brinbar ist. Die Kupplung ist dabei an dem Riegel befestigt und, wie bereits erwähnt, als schwenkbarer Kupplungshebel 12 ausgebildet, der insbesondere mittels eines an einer Zuhaltungsscheibe 5a (vgl. Fig. 1) befindlichen Vorsprunges 13 über ein noch zu beschreibendes Gestänge in seine Kupplungsstellung schwenkbar ist. Beim Ausschließen des Riegels aus seiner in den Figuren 3 bis 5 dargestellten Position in die in den Figuren 1 und 2 dargestellte Schließposition muß also der Drehknopf und die Welle 2 so lange verdreht werden, bis entsprechend viele Zuhaltungsscheiben 5 und 5a ebenfalls verdreht sind, um die Kupplung zwischen der Nockenscheibe 3 und dem Riegel 6 herzustellen. Erst dann wird der Riegel 6 ausgeschlossen, so daß bis dahin für einen sicheren Verschluß des Schlosses 1 ausreichend viele Zuhaltungsscheiben 5 und 5a mit ihren Einfallausnehmungen 4 verworfen sind, um ein sofortiges Einfallen des Fingers 9 ohne nochmalige Einstellung des Öffnungsgeheimnisses zu vermeiden.In all the figures it can clearly be seen that on the bolt 6 a clutch which can be moved out of the area of the path of the cam 11 of the cam disk 3 - in the exemplary embodiment a clutch lever 12 to be described in more detail below - is provided, which only after at least partially rotating at least one Locking disc 5 in the coupling position (FIG. 5), ie in the area of the path of the cam 11 is brinbar. The clutch is fastened to the bolt and, as already mentioned, is designed as a pivotable clutch lever 12 which can be pivoted into its clutch position in particular by means of a projection 13 located on a tumbler disc 5a (see FIG. 1) via a linkage to be described. When the bolt is excluded from its position shown in FIGS. 3 to 5 into the closed position shown in FIGS. 1 and 2, the rotary knob and the shaft 2 must be rotated until a corresponding number of tumbler disks 5 and 5a are also rotated by the To produce coupling between the cam disc 3 and the bolt 6. Only then is the latch 6 released closed, so that until then for a secure closure of the lock 1 enough tumblers 5 and 5a are discarded with their recesses 4 to avoid an immediate engagement of the finger 9 without having to set the opening secret again.

Vor allem anhand der Fig. 4 erkennt man, daß der vor dem zur Durchführung der Schließbewegung erfolgenden Verdrehen der Zuhaltungsscheiben 5 und 5a aus diesen hinter einen Sperranschlag 14 ausgebbare Einfallhebel 7 in seiner Länge veränderbar ist. Die erwähnte Verdrehung der Zuhaltungsscheiben bewirkt nämlich, daß von der Nockenscheibe 3 her die Nase 8 des Einfallhebels 7 schon angehoben wird. Weil aber der Riegel 6 zunächst noch nicht in Schließstellung gelangen soll, der Einfallhebel aber bereits in seine Sperrstellung gehoben wird, um mit seinem Finger 9 aus dem Bereich der Einfallöffnungen 10 zu kommen, ist dies eine besonders zweckmäßige und sinnreiche Einrichtung.4, it can be seen that the length of the lever 7 that can be output from the tumbler disks 5 and 5a prior to the closing movement being carried out for carrying out the closing movement can be changed. The aforementioned rotation of the tumbler disks causes the nose 8 of the drop lever 7 to be raised from the cam disk 3. But because the bolt 6 is not yet supposed to get into the closed position, but the drop lever is already raised to its locked position in order to get out of the area of the drop openings 10 with its finger 9, this is a particularly useful and useful device.

Im Ausführungsbeispiel ist dabei vorgesehen, daß der Einfallhebel 7 als an dem Riegel 6 befestigter Kniehebel ausgebildet ist, dessen einer Kniehebelschenkel 15 unmittelbar an dem Riegel 6 angelenkt ist und beim Ausheben des Einfallhebels 7 unter Verkürzung des gesamten Einfallhebels in die in Fig. 4 dargestellte Position hochschwenkbar ist. Im Bereich der Obenstellung des Kniehebelgelenkes 16 ist auf dessen dem Riegel 6 zugewandter Seite ein Anschlag 17 zum Strecken des Einfallhebels 7 beim Ausschließen des Riegels 6 vorgesehen. Wird der Riegel 6 aus der in Fig. 4 und 5 dargestellten Position in Richtung des Pfeiles Pf 1 verschoben, indem die Drehung der Nockenscheibe 3 gemäß dem Pfeil Pf 2 über den Nocken 11 und den Kupplungshebel 12 auf den Riegel 6 übertragen wird, macht das Schwenkgelenk 18, über welches der Kniehebelschenkel 15 an dem Riegel 6 befestigt ist, diese Bewegung mit. Das Kniehebelgelelenk 16 kann jedoch wegen des Anschlages 17 dieser Bewegung nicht folgen, so daß der Einfallhebel zwangsläufig zumindest teilweise gestreckt wird. Nach einer gewissen Streckung, wenn nämlich das Schwenkgelenk 18 unter dem Kniehebelgelenk 16 hinwegbewegt ist, kann der Einfallhebel schon aufgrund der Schwerkraft in die in Fig. 2 dargestellte gestreckte Position fallen, was jedoch noch durch eine Feder 32 unterstützt werden kann.In the exemplary embodiment, it is provided that the drop lever 7 is designed as a toggle lever attached to the latch 6, one of the toggle levers 15 of which is articulated directly to the latch 6 and when the drop lever 7 is lifted out, the entire drop lever is shortened to the position shown in FIG. 4 can be swung up. In the region of the top position of the toggle joint 16, a stop 17 is provided on the side facing the bolt 6 for extending the drop lever 7 when the bolt 6 is excluded. If the bolt 6 is shifted from the position shown in FIGS. 4 and 5 in the direction of the arrow Pf 1 by the rotation of the cam plate 3 according to the arrow Pf 2 via the cam 11 and the clutch lever 12 is transmitted to the bolt 6, it does Swivel joint 18, via which the toggle lever leg 15 is attached to the bolt 6, with this movement. However, the toggle joint 16 cannot follow this movement because of the stop 17, so that the drop lever is inevitably at least partially stretched. After a certain extension, namely when the swivel joint 18 has moved away from under the toggle joint 16, the drop lever can fall into the extended position shown in FIG. 2 due to the force of gravity, but this can also be supported by a spring 32.

Der im Ausführungsbeispiel als Stift ausgebildete Vorsprung 13, der selbstverständlich auch eine Ausnehmung sein könnte, in die von der anderen Seite her ein Stift od. dgl. Element einfallen kann, und zur Betätigung des mit der Nockenscheibe 3 zusammenwirkenden Kupplungshebels 12 dient, ist im Ausführungsbeispiel an der von der Nockenscheibe 3 aus gesehen letzten Zuhaltungsscheibe 5a angeordnet, so daß erst alle Zuhaltungsscheiben verdreht werden müssen, bevor der Kupplungshebel 12 in die eingekuppelte Position gemäß Fig. 5 gelangt und der Riegel 6 durch weiteres Verdrehen der Welle 2 ausgeschlossen werden kann. Dieses Ausführungsbeispiel ermöglicht also unter keinen Umständen ein derart knappes Auschließen des Riegels 6, daß ohne erneute Einstellung des Öffnungsgeheimnisses das Schloß 1 sofort wieder geöffnet werden könnte. Gleichzeitig werden Rückschlüsse auf die Differenz der einzelnen Öffnungszahlen durch diese Maßnahme von vornherein unmöglich gemacht.The projection 13 designed as a pin in the exemplary embodiment, which of course could also be a recess into which a pin or the like element can fall from the other side, and serves to actuate the clutch lever 12 cooperating with the cam disk 3, is in the exemplary embodiment arranged on the last tumbler disc 5a seen from the cam disc 3, so that all tumbler discs must first be rotated before the clutch lever 12 reaches the engaged position according to FIG. 5 and the bolt 6 can be excluded by further rotation of the shaft 2. Under no circumstances does this exemplary embodiment enable the bolt 6 to be so narrowly excluded that the lock 1 could be opened again immediately without the opening secret having to be reset. At the same time, conclusions on the difference between the individual opening numbers are made impossible from the outset by this measure.

Der an dem Riegel 6 angelenkte Kupplungshebei 12 weist zwei jeweils lösbar fixierbare Endstellungen auf. Dies kann in nicht näher dargestellter Weise mit Hilfe von Rastkugeln und dgl. erfolgen. Außerdem ist für die Obenstellung des Kupplungshebels 12, also seinen ausgekuppelten Zustand, ein an dem Kupplungshebel 12 selbst oder seinem Betätigungsgestänge angreifender Magnet 19 vorgesehen. Dieser kann den Kupplungshebel 12 sicher in Obenstellung halten, übt aber nach dem Verstellen des Kupplungshebels in Kupplungsposition im Gegensatz zu einer Rückstellfeder praktisch keine Kraft mehr auf diesen Hebel aus.The coupling lever 12 articulated on the bolt 6 has two end positions which can be releasably fixed. This can be done in a manner not shown with the aid of locking balls and the like. In addition, a magnet 19 engaging the clutch lever 12 itself or its actuating linkage is provided for the top position of the clutch lever 12, that is to say its disengaged state. This can hold the clutch lever 12 securely in the up position, but exerts practically no force on this lever after adjusting the clutch lever in the clutch position, in contrast to a return spring.

Der Nocken 11 der Nockenscheibe 3 ist so geformt und insbesondere in seinem oberen Bereich am Übergang 20 in die mit dem Außenumfang der Nockenscheibe 3 übereinstimmende Kontur so geformt und abgerundet, daß er beim Zurückschließen des Riegels 6 zum Öffnen des Schlosses 1 an dem entsprechend abgeschrägten und ebenfalls gerundeten Ende 21 des Kupplungshebels 12 angreift und diesen nach oben schwenkt. Es ist ohne weiteres verständlich und in den Figuren erkennbar, daß bei einer Bewegung der Nockenscheibe entgegen dem Pfeil Pf 2 der Bereich 20 das nockenförmige Ende 21 dieses Kupplungshebels erfaßt, wenn dieses gemäß Fig. 5 in die Umrißkontur der Nockenscheibe 3 ragt, und es bei einer weiteren Drehung in die in Fig. 3 dargestellte Position hebt, wo der Kupplungshebel 12 dann von dem Magneten 19 festgehalten werden kann.The cam 11 of the cam disk 3 is shaped and rounded in particular in its upper region at the transition 20 into the contour corresponding to the outer circumference of the cam disk 3 so that when the bolt 6 is closed to open the lock 1 on the correspondingly beveled and also engages the rounded end 21 of the clutch lever 12 and pivots it upwards. It is readily understandable and recognizable in the figures that when the cam disc moves against the arrow Pf 2, the area 20 detects the cam-shaped end 21 of this clutch lever when it protrudes into the contour of the cam disc 3 according to FIG a further rotation to the position shown in FIG. 3, where the clutch lever 12 can then be held by the magnet 19.

Das schon mehrfach erwähnte Betätigungsgestänge, über welches der Kupplungshebel 12 wieder in Kupplungsposition gelangt, ist im Ausführungsbeispiel dadurch gebildet, daß an der der Nockenscheibe 3 abgewandten Innenseite 22 des Schloßgehäuses oder Schloßkastens 23 ein durch den stiftartigen Vorsprung 13 der Zuhaltungsscheibe 5a beaufschlagbarer Steuerhebel 24 zur Steuerung des Kupplungshebels 12 - im Ausführungsbeispiel an einem Stehbolzen 25 - gelagert ist, welcher Steuerhebel 24 vorzugsweise eine Schlitzführung 26 aufweist, in die ein mit dem Kupplungshebel 12 verbundener Stift 27 (vgl. vor allem Fig. 1) eingreift. Es wäre allerdings auch möglich, den Lagerstift 28 des Kupplungshebels 12 starr mit diesem sowie dem Bolzen 25 zu verbinden, so daß die Schwenkbewegung des Steuerhebels 24 unmittelbar über einen solchen Bolzen auf den Kupplungshebel 12 übertragen würde.The actuating linkage, which has already been mentioned a number of times, via which the clutch lever 12 returns to the clutch position, is formed in the exemplary embodiment in that on the inside 22 of the lock housing or lock case 23 facing away from the cam disk 3, a control lever 24 can be acted upon by the pin-like projection 13 of the tumbler disk 5a for control purposes of the clutch lever 12 - in the exemplary embodiment on a stud 25 - is mounted, which control lever 24 preferably has a slot guide 26, into which a pin 27 connected to the clutch lever 12 (cf. especially FIG. 1) engages. However, it would also be possible to rigidly connect the bearing pin 28 of the clutch lever 12 to this and the bolt 25, so that the pivoting movement of the control lever 24 would be transmitted directly to the clutch lever 12 via such a bolt.

Im Ausführungsbeispiel besteht der steuerhebel 24 aus einem teils gestanzten, teils abgekanteten Blechteil, wobei der Führungsschlitz 26 durch abgewinkelte Schenkel 29 gebildet ist. Diese Schenkel 29 zur Bildung des Führungsschlitzes 26 könnten aber auch nachträglich an einem entsprechenden Steuerhebel 24 angebracht sein.In the exemplary embodiment, the control lever 24 consists of a partly stamped, partly abge edged sheet metal part, the guide slot 26 being formed by angled legs 29. These legs 29 for forming the guide slot 26 could also be attached to a corresponding control lever 24.

Es sei noch erwähnt, daß an dem Riegel 6 eine entgegen seiner Ausschließbewegung, also entgegen dem Pfeil Pf 1 gerichtete Gegenkraft, vorzugsweise eine Feder angreift, die größer als die Kraft zum Verkürzen des Einfallhebels 7 ist, damit nicht bei leicht gängigem Riegel 6 durch dieses Verkürzen des Einfallhebels 7 schon ein vorzeitiges, zumindest teilweises Ausschließen des Riegels 6 in Richtung des Pfeiles Pf 1 erfolgen kann.It should also be mentioned that a counter force directed against its locking movement, i.e. against the arrow Pf 1, preferably engages a spring that is greater than the force for shortening the drop lever 7, so that it does not run smoothly with the bolt 6 Shortening the drop lever 7 can result in a premature, at least partial exclusion of the bolt 6 in the direction of the arrow Pf 1.

Die Kniehebelgeometrie des Einfallhebels 7 ist so gewählt, daß bei gestrecktem Einfallhebel 7 in der Sperrstellung gemäß Fig. 2 die gedachte Verbindungslinie von der Sperrkante 30 des Einfallhebels 7 zu dem Schwenkgelenk 18 an dem Riegel 6 oberhalb des Kniehebelgelenkes 16 verläuft und daß die Verbindungslinie von dem Angriffspunkt 31 der Nockenscheibe 3 an der Nase 8 des Einfallhebels 7 zu dem Schwenkgelenk 18 an dem Riegel 6 unterhalb des mittleren Kniehebelgelenkes 16 verläuft, wobei für das Kniehebelgelenk 16 eine Abstützung 32 nach unten zur Fixierung dieser Lage vorgesehen ist. Wird nun versucht, den Riegel 6 aus seiner Sperrstellung in das Schloß zurückzuschieben, entsteht in dem als Kniehebel ausgebildeten Einfallhebel 7 eine Selbsthemmung, bei der das Kniehebelgelenk 16 nur fester auf seine Abstützung 32 gedrückt wird, während die Sperrkante 30 des Kniehebels gleichzeitig entsprechend fest an dem Sperranschlag anliegt. Der Riegel 6 ist also in erwünschter Weise gesperrt, bis der Einfallhebel 7 in üblicher Weise in die entsprechenden Einfallausnehmungen 4 eintreten kann. Diese Lage des Sperrhebels in selbsthemmender Stellung kann durch eine Feder 33 zusätzlich gesichert sein, welche Feder in der bereits erwähnten Weise auch für die Unterstützung der Streckbewegung des Einfallhebels 7 vorgesehen ist.The toggle lever geometry of the drop lever 7 is chosen so that when the drop lever 7 is stretched in the locked position according to FIG. 2, the imaginary connecting line from the locking edge 30 of the drop lever 7 to the swivel joint 18 on the bolt 6 extends above the toggle lever joint 16 and that the connecting line from that Point of engagement 31 of the cam disk 3 on the nose 8 of the drop lever 7 to the swivel joint 18 on the bolt 6 runs below the middle toggle joint 16, a support 32 being provided downward for the toggle joint 16 to fix this position. If an attempt is now made to push the bolt 6 back out of its locked position into the lock, self-locking occurs in the drop lever 7 designed as a toggle lever, in which the toggle joint 16 is only pressed more firmly onto its support 32, while the locking edge 30 of the toggle lever is at the same time correspondingly firmly attached the locking stop. The bolt 6 is thus locked in a desired manner until the drop lever 7 can enter the corresponding drop recesses 4 in a conventional manner. This position of the locking lever in the self-locking position can be additionally secured by a spring 33, which spring is also provided in the manner already mentioned for supporting the extension movement of the drop lever 7.

Um im Falle von Fehlbedienungen unerwünschte Kollisionen zwischen dem stiftartigen Vorsprung 13 und dem Steuerhebel 24 zu vermeiden, ist an dem freien Ende des Steuerhebels 24 eine Betätigungsklinke 34 vorgesehen, deren Vorderseite 35 konkav ausgebildet ist, wobei dieser konkave Kurvenbereich der Vorderseite 35 so angeordnet ist, daß er in ausgekuppeltem Zustand (vgl. vor allem Fig. 4) den Schwenkkreis des an der Zuhaltungsscheibe 5a befindlichen Vorsprunges 13 schneidet, während in gekuppeltem Zustand (vgl. Fig. 5) diese Kontur der Klinde 34 mit dem Schwenkweg des äußersten Punktes oder der äußersten Mantellinie 36 des Vorsprunges 13 der Zuhaltungsscheibe 5a etwa übereinstimmt. Der Vorsprung 13 kann also gemäß Fig. 5 oder 2 in der Kupplungslage des Kupplungshebels 12 an dieser Klinke 34 beliebig oft hin und her vorbeigeführt werden, während in der Position gemäß Fig. 4 bei einer Bewegung dieses Vorsprunges in Richtung des Pfeiles Pf 2 Formschluß zwischen dem Vorsprung 13 und der Vorderseite 35 der Klinke 34 entsteht, so daß dann der Steuerhebel aus der in Fig. 4 dargestellten Position nach unten geschwenkt wird, wodurch in erwünschter Weise der Kupplungshebel 12 in derselben Richtung in seine Kupplungsposition bewegt wird. Der Mittelpunkt des die konkave Kontur der Stirnseite 35 der Klinke 34 des Steuerhebels 24 bildenden Kreisbogens liegt im Ausführungsbeispiel seitlich der gedachten Mittellinie durch die Klinke 34 und deren Schwenklagerung 37, so daß erst durch die Verschwenkung des Steuerhebels in Kupplungsposition die Kontur in die koaxiale Lage zu dem Mittelpunkt der Nockenscheibe 3 gelangt.In order to avoid undesired collisions between the pin-like projection 13 and the control lever 24 in the event of incorrect operation, an actuating pawl 34 is provided on the free end of the control lever 24, the front side 35 of which is concave, this concave curve region of the front side 35 being arranged in such a way that that in the disengaged state (cf. especially Fig. 4) cuts the swivel circle of the projection 13 located on the tumbler disc 5a, while in the coupled state (cf. Fig. 5) this contour of the clamp 34 with the swivel path of the outermost point or the outermost surface line 36 of the projection 13 of the tumbler disc 5a approximately coincides. 5 or 2 in the clutch position of the clutch lever 12 on this pawl 34 can be moved back and forth as often as desired, while in the position according to FIG. 4 with a movement of this projection in the direction of arrow Pf 2 positive engagement between the projection 13 and the front 35 of the pawl 34 is formed so that the control lever is then pivoted downward from the position shown in Fig. 4, whereby the clutch lever 12 is desirably moved in the same direction to its clutch position. In the exemplary embodiment, the center point of the circular arc forming the concave contour of the end face 35 of the pawl 34 of the control lever 24 lies to the side of the imaginary center line through the pawl 34 and its pivot bearing 37, so that the contour into the coaxial position only becomes when the control lever is pivoted into the coupling position reaches the center of the cam disk 3.

Die Klinke 34 ist nämlich relativ zu dem Steuerhebel 24 schwenkbar gelagert, wobei der Schwenkweg der Klinke 34 an diesem Steuerhebel 24 in Richtung der Kupplungsbewegung durch einen Anschlag 38 begrenzt bzw. unterbunden ist und bei der entgegengesetzten Schwenkung eine Gegenkraft, im Ausführungsbeispiel die Kraft einer Feder 39 zu überwinden ist. Dadurch ist es möglich, die Zuhaltungsscheibe 5a mit dem Vorsprung 13 auch in der in Fig. 4 dargestellten Lage entgegen der Richtung des Pfeiles Pf 2 zu drehen, ohne daß Beschädigungen an diesem Vorsprung oder der Klinke auftreten können, weil dann die Klinke 34 dem Vorsprung 13 unter Spannung der Feder 39 ausweichen kann.The pawl 34 is namely pivotally mounted relative to the control lever 24, the pivoting path of the pawl 34 on this control lever 24 in the direction of the coupling movement being limited or prevented by a stop 38 and a counterforce in the opposite pivoting, in the exemplary embodiment the force of a spring 39 must be overcome. This makes it possible to turn the tumbler disc 5a with the projection 13 in the position shown in FIG. 4 against the direction of the arrow Pf 2 without damage to this projection or the pawl, because then the pawl 34 is the projection 13 can escape under tension of the spring 39.

Die Riegelbewegung selbst ist in bekannter Weise durch einen in einen Langschlitz 40 eingreifenden Führungsbolzen 41 und einen mit dem Riegel verbundenen, an der Schloßkasteninnenseite 42 gleitenden Vorsprung 43 gebildet.The bolt movement itself is formed in a known manner by a guide pin 41 engaging in an elongated slot 40 and a projection 43 connected to the bolt and sliding on the inside of the lock case 42.

Claims (16)

1. Permutation lock having a cam disc (3), which is actuatable by a rotary knob, for setting a plurality of tumbler discs which can be set to any desired secret setting and which each comprise an engagement recess (4) on their periphery, having an engagement lever (7) hinged to a key-bolt and having a lug (8) acting on the periphery of the cam disc (3) and a lateral finger (9) which is arranged transversely over the peripheries of the tumbler discs (5, 5a), whilst, to enable the finger to engage in the associated engagement recesses (4) of each tumbler disc (5, 5a) when the latter are aligned with one another beneath the finger, an engagement opening (1 b) for the engagement lever (7) is provided on the periphery of the cam disc and furthermore a cam (11) of the cam disc (3) is provided for moving the key-bolt (6) into its locking position, characterised in that, on the key-bolt (6), there is provided a coupling which is movable out of the range of travel of the cam (11) of the cam disc (3) for the key-bolt movement, and this coupling cannot be brought into the range of travel of the cam (11) until at least one tumbler disc (5, 5a) has been at least partially rotated.
2. Permutation lock as claimed in claim 1, characterised in that the coupling is attached to the key-bolt (6) and is constructed as a pivotable coupling lever (12) which can in particular be pivoted into its coupling position by means of a projection (13) provided on a tumbler disc (5a), via a linkage.
3. Permutation lock as claimed in claim 1 or 2, characterised in that the engagement lever (7), which can be lifted out of the tumbler discs (5 ; 5a) behind a locking abutment (14) before these tumbler discs have been rotated to effect the locking movement, is variable in length.
4. Permutation lock as claimed in claim 3, characterised in that the engagement lever (7) is constructed as a bell crank lever attached to the key-bolt (6), one leg (15) of said lever being hinged directly to the key-bolt (6) and being capable of pivoting upwards when the engagement lever (7) is lifted, to shorten the engagement lever as a whole.
5. Permutation lock as claimed in one of claims 1 to 4, characterised in that an abutment (17) for extending the engagement lever (7) when the key-bolt (6) is moved out into the locked position is provided in the region of the upper position of the bell crank lever joint (16) on its side nearest the key-bolt (6).
6. Permutation lock particularly as claimed in claim 2, characterised in that the projection (13) for actuating the coupling lever (12) which cooperates with the cam disc (3) is mounted at least on the last tumbler disc (5a), viewed from the cam disc.
7. Permutation lock as claimed in one of claims 1 to 6, characterised in that the coupling lever (12) hinged to the key-bolt (6) has two releasably fixable end positions.
8. Permutation lock as claimed in claim 7, characterised in that notches and/or a magnet (19) acting on the coupling lever (12))itseif and/or on the actuating linkage thereof, at least for the upper position of the coupling lever (12) in the uncoupled state, is or are provided for the releasable fixing of the coupling lever (12).
9. Permutation lock as claimed in one of claims 1 to 8, characterised in that the cam (11) of the cam disc (3) is shaped so that, when the key-bolt (6) is locked, for opening the lock (1), it acts on the end (21) of the coupling lever (12) and tilts this lever upwards.
10. Permutation lock as claimed in one of the claims 1 to 9, characterised in that, mounted on the inside (22) of the lock casing (23) remote from the cam disc (3), there is a control lever (24), actuatable by the in particular pin-like projection of the tumbler disc (5a), for controlling the coupling lever (12), this control lever (24) preferably having a slot guide or the like in which there engages a pin (27) or finger connected to the coupling lever (12).
11. Permutation lock as claimed in claim 10, characterised in that the control lever (24) consists of a partially stamped, partially chamfered sheet metal component, whilst the guide slot (26) is formed by bent-round flaps (29).
12. Permutation lock as claimed in one of claims 1 to 11, characterised in that the key-bolt (6) is acted upon by a counter-force directed against its outward locking movement, preferably exerted by a spring or the like, which is greater than the force tending to shorten the engagement lever (7).
13. Permutation lock as claimed in one of claims 1 to 12, characterised in that the bell crank configuration of the engagement lever (7) is selected so that, when the engagement lever is extended, the connecting line from the locking edge (30) of the engagement lever (7) to the pivotal joint (18) on the key-bolt (6) extends above the bell crank joint (16) and the connecting line from the point of attack (31) of the cam disc (3) on the lug (8) of the engagement lever (7) to the pivotal joint (18) on the key-bolt (6) extends below the central bell crank joint (16), whilst a support (32) is provided below the bell crank joint (16) in order to fix this position.
14. Permutation lock as claimed in one of claims 1 to 13, characterised in that, at the free end of the control lever (24), there is an actuating pawl (34) the front end (35) of which is concave in construction, this concave curved area being arranged so that, in the uncoupled state, it intersects the pivot circle of the projection (13) located on the tumbler disc (5a), whilst in the coupled state this contour of the pawl (34) coincides substantially with the pivotal path of the outermost point (36) of the projection (13) of the , tumbler disc (5a).
15. Permutation lock as claimed in claim 14, characterised in that the centre point of the arc which forms the concave contour of the end (35) of the pawl (34) of the control lever (24) is located to the side of the central line through the pawl (34) and the pivotal mounting (37) thereof.
16. Permutation lock as claimed in claim 14 or 15, characterised in that the pawl (34) is pivotally mounted relative to the control lever (24), the pivotal path of the pawl (34) on this control lever (24) being limited by a stop (38) in the direction of the coupling movement, whilst the force of a spring (39) has to be overcome in the corresponding pivoting movement.
EP19810102263 1980-08-06 1981-03-26 Permutation lock with a cam disc and tumbler discs Expired EP0045348B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81102263T ATE7064T1 (en) 1980-08-06 1981-03-26 PERMUTATION LOCK WITH ONE CAM DISC AND LOCKING DISCS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3029735 1980-08-06
DE19803029735 DE3029735A1 (en) 1980-08-06 1980-08-06 PERMUTATION LOCK WITH A CAM AND LOCKING DISC

Publications (2)

Publication Number Publication Date
EP0045348A1 EP0045348A1 (en) 1982-02-10
EP0045348B1 true EP0045348B1 (en) 1984-04-11

Family

ID=6108990

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810102263 Expired EP0045348B1 (en) 1980-08-06 1981-03-26 Permutation lock with a cam disc and tumbler discs

Country Status (4)

Country Link
US (1) US4420955A (en)
EP (1) EP0045348B1 (en)
AT (1) ATE7064T1 (en)
DE (1) DE3029735A1 (en)

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US4967577A (en) * 1988-06-10 1990-11-06 La Gard, Inc. Electronic lock with manual combination override
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US5343723A (en) * 1992-09-03 1994-09-06 Lockmasters, Inc. Combination lock
DE4323493C1 (en) * 1993-07-14 1994-10-27 Kromer Theodor Gmbh & Co Kg Number-combination lock with a rotary knob, with a cam disc and with a drop-in lever
US5473919A (en) * 1994-02-28 1995-12-12 Sargent & Greenleaf, Inc. Manipulation resistant combination lock with magnets
DE19524829C1 (en) * 1995-07-07 1996-12-05 Kromer Theodor Gmbh & Co Kg Permutation lock with combination set by knob
US6904778B2 (en) * 2003-04-28 2005-06-14 Lockmasters, Inc. Mechanical combination lock
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Also Published As

Publication number Publication date
EP0045348A1 (en) 1982-02-10
DE3029735C2 (en) 1989-03-30
DE3029735A1 (en) 1982-03-11
US4420955A (en) 1983-12-20
ATE7064T1 (en) 1984-04-15

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