DE19507998C2 - Permutation lock with a cam disc and several tumbler discs - Google Patents

Description

The invention relates to a permutation lock with a a rotary knob or rotary actuator operated cam disc Setting several, set to any setting secrets barer, each provided with an incision recess on its circumference Guard locking or combination disks, with one on a bolt Articulated lever, one on the circumference of the cam disc attacking nose and a lateral finger that is transverse is arranged over the circumferences of the tumbler disks, wherein for the entry of the finger into the corresponding recesses each tumbler if these are with each other under your finger aligned, on the circumference of the cam disc an opening for the lever or its nose is provided and further comprising a cam of the cam for moving the Bolt is provided in its closed position.

Such a permutation lock is for example from DE 23 20 816 or DE 28 16 969 known. With these well-known permuta tion locks, which are also called combination locks, there is the possibility of turning the latch with the help of the Exclude the cam disc in this way, that is, in the closed position  move the tumbler or combination disks not yet are twisted or discarded again, i.e. arranged in this way remain that their recesses are in alignment. It can be used for a convenient for frequent users of this permutation lock speed because he then has to open the lock again does not have to set the setting secret first, which sometimes incorrect operation and thus a loss of time. On however, this bar, which is excluded or locked, is fulfilled of course not the requirements for such a permutation closed because the fuse with the help of the tumbler discs then is missing. The closing movement is shown under "Exclude" the bolt understood the bolt from the lock into his Brings or shifts the closed position in the lock counterpart or acts accordingly on a framework.

A combination lock is known from WO 91/09 195, in which excessive attempts at manipulation or opening a blocking release the bolt. By means of a microswitch, the Switch lug on the cam disc, impulses generated and forwarded to electronics, which are then given if an electromagnet is activated.

In a combination lock according to US 44 55 552 means Photosensors the rearmost tumbler disc, the cam disc and the drop lever monitors and the signals generated remote display station. With this well-known The permutation lock can be the non-rejection of the combination detected and used to trigger alarm, however the function depends on the fact that the photosensors and the Transmission of the signals and the display station work, which is questioned, for example, in the event of a power failure.

DE 34 14 642 C3 and DE 37 40 126 A1 are block locks known which for arming an intrusion detection system  serve. With these locks, the position of the bolt is determined by Micro switches monitored.

It is also already known on one of a permutation lock of the type mentioned, bolt work operated a monitoring to provide, which includes an electrical switch with the Help the bolt position can be displayed in each case. In order to However, monitoring is only possible to determine whether the bolt is moved to the open or closed position. Consequently is not possible to monitor whether the combination discs or Tumbler disks are twisted or rejected so that the permutation lock fulfills the complete security function.

There is therefore the task of a permutation lock at the beginning to create the type mentioned, in which the rejection of the Tumbler discs displayed and / or one with the lock system connected alarm system only when closed discarded tumbler disks can be unlocked.

The solution to this problem is that on or in the Permutation lock in the circuit of a display device and / or an alarm system arranged switch and this actuating switching element are provided, which switching element by moving the lock bolt into its open position Switch actuates that a locking device for setting the Switching element is provided in this position and that at the twisted last when discarding the tumbler disks Tumbler disc a release device for releasing the latching and to move the switching element back into the opposite Position is arranged.

If a permutation lock designed in this way is opened, be So the combination or tumbler discs with their The recesses are aligned in alignment, at the same time  placed electrical switch in such a switching position that the display device indicates the opening of the lock and / or an alarm system is brought into such a switching state, that the user of the lock cannot leave the system, without triggering an alarm. This position of the switch is only then undone, even if the last tumbler disc twisted again from the open position, i.e. discarded is because this tumbler disc is a trigger device to release the lock and thus to release the switch elementes has to switch the switch back to its opposite Bring switching position.

It is particularly useful if the switch is open Latch from the one that is particularly raised and releasably held Switching element actuated and with discarded tumbler disks is released. This can be implemented in a structurally simple manner, because the retraction movement of the bolt is then active when adjusting of the switching element can be used to operate the switch can, while the reverse movement only releases the switch, if the release device of the last tumbler disc has released releasable bracket of the switching element again. Also can reset the switching element from gravity get supported.

It is for precise actuation and space-saving arrangement advantageous if the electrical switch is a microswitch, which in one switch position has a "lock open" signal and / or in the other switching position a signal "lock in Closed position and tumbler discs rejected " in the same way this switch can be used instead of these signals Affect alarm system or there may be a corresponding Signal given and the alarm system can be influenced. As long as If the tumbler discs are not discarded, the alarm system remains sharp, so in a known manner by additional A  directions triggered when the user does not lock the lock again properly closed.

The switching element can be a lever mounted next to the bolt, in particular be a pivot lever, the bolt and / or the lever can have a projection and an inclined surface on which the generally linear movement of the bolt in a transverse movement or pivoting movement of the lever against the switch becomes. So at least one can be done in a very simple way Switch position by the retraction of the bolt from its Closing can be effected in its opening position. In this Position then the locking device is effective, so that a Moving the latch back leaves the lever unaffected until too the tumbler disks are discarded again.

The projection can be on the lever transverse to its direction of movement protrude and can be acted upon directly or indirectly by the bolt be. Thus, the lever and the latch can essentially in be arranged approximately parallel planes and yet mutually affect because the said projections or the like of one reach to the other level.  

It is particularly advantageous and simple if the projection on the lever one oriented in the sliding direction of the bolt Has guide surface, at least in the closed position located bolt is arranged obliquely and by the bolt movement gung and the bolt or an element connected to the bolt can be raised together with the lever, in particular can be swung up. Thus, the locking movement can be very easily on the lever transmitted and exploit to operate the switch, whereby Actuate the switch either "Activate" or "Release" can mean depending on how the switch in the circuit connected. It is only important that after discarding with the help of the release device of the last tumbler disc the opposite position of this switch is reached.

A projection can protrude from the bolt, which is the guide surface engages under the lever and when the bolt is moved in Open position the lever due to the inclination of the guide lift the surface against the switch, especially the microswitch, in particular pivots up when this switch is in use position above the lever.

A modified, also advantageous and space-saving solution can be that the bolt or a slider firmly connected to the bolt one in particular has a limited opening or recess with an inclined surface, into which the projection protruding from the lever engages so that the displacement of the latch or slide and the oblique Limiting the opening or recess the projection and thus the lever when moving the latch into its open position adjusted, especially against the switch or microswitch moved or pivoted. In this case it is the leader Surface provided on the bolt or the slide, but can also on both the latch and the one with the lever connected projection each have a guide surface and both guide surfaces can in the sense described  interact that the lever by pulling back the latch is moved or pivoted into its open position accordingly.

So that the display of the locking of the lock and the Discarding the tumbler disks or the corresponding energization the alarm system only work if the last one Tumbler disc is at least partially discarded, so that none Conclusions about the opening secret or parts of it more are possible, this is expediently designed as a lever Switching element as long as in the withdrawn bolt caused position until actually the last tumbler disc is discarded. As mentioned, there is a locking device provided and it is advantageous if as a locking device spring-loaded, tapering at its free end Locking element and a locking recess provided on the lever are in which the locking element when the bolt is retracted and accordingly, moved or pivoted lever engages.

It is structurally particularly simple, yet effective, if as a locking element a leaf spring with an approximately V or U-shaped bent free end is provided as a locking projection which end fits into a groove-shaped recess in the lever and when the leaf spring has its locking projection across the lever movement supply and in particular approximately in the axial direction of the pivot axis lever against the lever and into the recess. This results in a simple yet effective locking device, which holds the lever after pivoting until it Snap connection from the release device of the last tumbler disk is loosened again.

At the tumbler or Combination disc can - as a release device - a release jump be provided, the lever and / or the detent spring such acts that the locking connection is released and the lever in Starting position is moved back. Just like a head start or  the like the lever when retracting the bolt in it Open position pivoted and fixed by the detent spring, can So also a simple cam as a release projection on the last one discarded tumbler disc the return movement of the lever cause because the locking connection with the locking spring is detachable.

It is particularly useful if a second on the lever Projection is arranged by the cam or release projection the last tumbler disc when it is rotated in the sense of a movement can be applied away from the switch. By mechanically and structurally very simple measures can achieved that the lever when pulling back the bolt in whose open position reaches a position in which is displayed is that the lock or its bolt are open respectively can an alarm system send a release signal to a switch send element and all of this will not be simple Moving the bolt back into its closed position cancels made, but only by discarding all tumbler disks.

On the lever, a second rest point can interact with the locking projection can be provided which the lever in the output position with the bolt closed and discarded tumbler discs releasably sets. This makes the locking device for both Positions of the lever are used and this is in both Positions are set in the same way.

The release process at the last discarded tumbler is at a circumferential location arranged which the lever and its second projection or the like when discarding, especially at the end of discarding happens. The further the last tumbler disc is twisted, before the latched lever and thus the switch back in Starting point, the better the permutations locked again.  

An improvement in what can be achieved through the permutation lock Security can be achieved by the permutation lock an electromagnetically operated, powered by the alarm system Has lock for the bolt and that to operate this lock a second, from the bolt or one connected to it Slider operated microswitch is provided. Will in one in such a case, the lock is opened without a release signal the alarm system is present, the bolt or the slide withdrawn until the second microswitch is actuated , which energizes a magnet that actuates the lock and thus a further displacement of the latch or slide prevented in the closed position.

The one for actuating the electromagnetic lock respectively the slide switch provided for this purpose can simultaneously operate the lever for loading serve the first electrical switch and this slide can two curvilinear recesses for loading one side of the second switch and on the other hand the operating lever for the have first switches that are adjacent to each other in the distance are in which the switches are arranged. So this won't only the aforementioned display or special energization of the Alarm system with not discarded tumbler disks, but it can also move the bolt in Closed position can be prevented when the release signal of the There is no alarm system when the lock is opened.

Especially when combining one or more of the above described features and details results in a permuta tion lock, which is characterized in that a projection or a recess on the bolt or on one of the bolts operated slide or the like as the first actuator for a lever which can be actuated by the bolt movement, in particular swivel lever is provided, which in one End position applied to an electrical switch and in the  other end position this switch releases that a detent, in particular a detent spring is provided, which the shift lever releasably holds in the display position of the switch, and that a second actuation, acting on the shift lever in the opposite direction element is provided, the actuation of the detent or Detent spring disengages from the shift lever and that this second Actuating element, in particular a release projection or cam, on the last discarded combination or tumbler disc is arranged at a circumferential point which the shift lever and a stop provided on it or the like when discarding the tumbler disc happens. Thus, above the mentioned Switches also cause the display to be in the closed position the tumbler disks are also discarded. Beyond or instead, an alarm system can be connected to this switch be, which only emits a release signal when the tumbler discs are all discarded. Thus, a proper one complete actuation of the permutation lock with the for it required discarding of the tumbler disks or even be forced.

Below are exemplary embodiments of the invention based on the Drawing described in more detail. It shows in partly schematic Presentation:

Fig. 1 is a plan view, partially in longitudinal section of a permutation lock according to the invention, a bent, ver parallel to the bolt operating slide is arranged at the bar, the housing in front of the lock is movable and can act on arranged there micro switch,

Fig. 2 is a view of the slide connected to the bolt from the lock, with switches and these actuating switching elements, wherein a switching element is designed as a pivot lever which engages by means of a projection in a recess of the slide and by moving the slide and the recess can be raised against one of the switches, the lever being in its position releasing the switch,

Fig. 3 is a partially cross-sectional end view of the permutation lock from the side facing away from the bolt, the partial section through the slide connected to the bolt runs approximately at the point at which it acts on a projection located on the lever, this lever in a position releasing the switch is releasably locked,

Fig. 4 is a view corresponding to Fig. 2, wherein the bolt and the slide are moved to the open position of the lock and thereby the lever is pivoted so that the lever acts on the switch and a further area of the slide a second switch, via which the alarm system sends a release signal to the lock and its actuating magnet, so that the bolt and the slide can be retracted in the open position, as shown in FIG. 4,

Fig. 5 is a representation corresponding to Fig. 2, in which there is no release signal from the alarm system, so that the lock prevents the final opening of the bolt and the slide, the bolt and slide being retracted so far towards the open position that the second switch is actuated and so that the magnet for pivoting the lock is energized in the locked position,

Fig. 6 is a Fig. 2 corresponding representation, wherein the latch is opened and the lock are disengaged and the lever acts upon the first switch,

Fig. 7 is a representation corresponding to Fig. 2, in which the bolt and the slide are moved back to the closed position, but the lever for acting on the first switch is held by the catch in its position acting on the switch and a release projection on the last one warping tumbler disc has not yet reached a second projection serving on the lever for pivoting back,

Fig. 8 a of Fig. 7 corresponding representation, wherein a serving as a release device releasing projection last acted upon in the for the closed position to be discarded tumbler projecting into its path second projection of the lever and thereby pivot the lever from its upper rest position downwards,

Fig. 9 is a view of a modified embodiment of processing slices of a permutation lock according to the invention with a view of the lock box with removed cover plate and top view of the partially broken away drawn bar, an actuatable from this pivot lever, a switch and the thus acted upon Zuhal,

Fig. 10 is an end view of the lock of Fig. 9 viewed from the bolt out, this view being shown in partial cross-section views of the latch for the actuatable by the lock lever to the actuated by this lever switch and on some of the tumbler discs,

Fig. 11 in a schematic representation an approximately Fig. 9 corresponding view of the lock in the closing position with befindlichem latch on and in default lever for actuating the switch,

So that it acted on Fig. 12 a of FIG. Representation corresponding with retracted latch in the open position, which has pivoted by means of a finger or the like, the lever 11 above the switch,

Fig. 13 to Fig. 11 and 12 corresponding schematic representation of the permutation lock, wherein the bolt is pushed back again into the closed position, the tumbler discs are not yet discarded, and the lever is held in the switch acting position by means of a catch, and

Fig. 14 to Fig. 11 to 13 corresponding illustration in which a lever is applied to a projecting into its path region or second projection, and passes on the last tumbler disc as a triggering device befindlicher cams or the release projection, whereby the lever-holding of him Detent is released and pivoted back into its starting position, in which the switch is released again.

In the following description of the two exemplary embodiments, parts that have the same function receive the same reference numbers even in the case of a different shape or configuration. The first embodiment according to FIGS. 1 to 8 relates to a permutation lock 1 , which to a certain extent bears on its outside a switching device designated as a whole by 2, which is connected via a slide 3 to the bolt 4 of the lock 1 . In addition, the bolt 4 is connected in a manner known per se to a bolt mechanism 5 indicated schematically in FIGS. 1 and 2.

In the exemplary embodiment according to FIGS. 9 to 14, a permutation lock 1 is shown, which has no special switching device, but rather contains one in a manner to be described.

In both exemplary embodiments, a permutation lock 1 is shown, which is provided with a cam disk 7 (see FIG. 9), which can be actuated by a rotary knob or rotary drive via an axis of rotation 6 (see FIG. 9), for adjusting a plurality of adjustment secrets, the circumference of which is provided with a recess 8 each Tumbler disks 9 and an engaging lever 10 articulated on the bolt 4 , which has a nose 11 engaging on the circumference of the cam disk 7 and a lateral finger 12 or projection which is arranged transversely over the circumferences of the tumbler disks 9 . These details can be seen above all in the exemplary embodiment according to FIGS. 9 to 14 and in particular in the schematic FIGS. 11 to 14. In the exemplary embodiment according to 1 to 8, these lock parts known per se are hidden.

For the entry of the finger 12 into the associated recesses 8 of each tumbler or combination disc 9, it is necessary that these are aligned under the finger 12 , which happens when the setting secret 6 is set correctly on the axis of rotation 6 . On the circumference of the cam disk 7 , an incidence opening 13 is provided for the nose 11 of the incidence lever 10 , the nose 11 entering the incidence opening 13 when the finger 12 simultaneously falls into the incidence recesses 8 . Once this has been done, the bolt can be withdrawn from its closed position into its open position by further rotation of the axis of rotation 6 . Furthermore, a cam 14 is provided on the cam disc 7 for moving the bolt 4 back into its closed position.

So that when the permutation lock 1 is closed not only the bolt is pushed back, but also the tumbler disks are rotated against each other and discarded, precautions have been taken in both exemplary embodiments which allow an indication as to whether the tumbler disks are again so far discarded that the recesses 8 are no longer aligned and no longer lie below the finger 12 . An alarm system, which is provided on the safe or the like secured by such a lock 1 , can be switched so that it responds when the tumbler disks 9 are not completely rejected.

This is achieved in that in the exemplary embodiment according to FIGS. 1 to 8 on the permutation lock 1 and in the exemplary embodiment according to FIGS. 9 to 14 in the permutation lock 1 a switch 15 arranged in the circuit of a display device and / or an alarm system and a switching element actuating it 16 are provided, which switching element 16 acts and actuates the switch 15 in a manner yet to be described by the movement of the lock bolt 4 from its closed position according to FIGS . 2 and 11 into its open position according to FIGS. 4 and 12.

Especially in FIGS. 3 and 10, but also in other figures, you can see a locking device 17 for fixing the switching element 16 in this position, such as in Fig. 4, 6, 7, 12 and 13 is taken.

At the in discarding the Zuhaltungs- or combination discs 9 last twisted tumbler 9 a is arranged a likewise to be described hereinafter release means for releasing the latching and for moving back the switching element 16 in the most opposite te position shown in FIGS. 8 and 14, wherein in embodiment the "opposite position" is that switch 15 is released. Depending on the electrical circuit, the reverse arrangement would also be conceivable, in which the switch is thus acted on when the tumbler discs are discarded and is released when the lock is open.

In both exemplary embodiments it is therefore provided that the switch 15 is actuated by the raised and releasably held switching element 16 when the bolt 4 is open and is released when the tumbler disks 9 are rejected.

The electrical switch 15 is expediently a microswitch which triggers a "lock" signal in the one switch position and triggers a signal "lock discarded in the closed position and tumbler disks" in the other switch position or displays it via a display device Alarm be connected, so that an exit of the secured with the combination lock 1 value container or area without proper closure or discarding the tumbler discs 9 and 9 a is not possible.

In both exemplary embodiments, the switching element 16 is a lever mounted next to the bolt 4 , in the exemplary embodiment a swivel lever, which is therefore also designated " 16 " in the following description. In both exemplary embodiments, this lever 16 has a projection 18 , via which the movement of the bolt 4 is converted into the transverse or pivoting movement of the lever 16 against the switch 15 . The lever 16 thus has a projection 18 projecting transversely to its direction of movement, which is acted upon directly or indirectly by the bolt 4 in a manner to be described when the bolt moves from the closed position of the permutation lock 1 according to FIGS. 2 and 11 into its open position according to is Figs. 4 and 12 moves.

At least at is in the closed position lock lever 4 is arranged obliquely in the embodiment according to FIGS. 9 to 13 it is provided that the projection has an oriented in the sliding direction of the bolt 4 guide surface 19 on the lever 16 18, thus forms an oblique surface. Thus, by means of the bolt movement and the bolt 4 or, in this exemplary embodiment, an element connected to the bolt 4 , the projection 18 with the inclined guide surface 19 can be raised together with the lever 16 and pivoted up against the switch 15 , which actuates it. A protrusion 20 in the form of a pin protrudes from the bolt 4 as an element connected to it, which engages under the guide surface 19 of the lever 16 and, when the bolt 4 is displaced into its open position, the lever 16 due to the inclined position of the guide surface 19 against the switch 15 swings up. It can be seen that this guide surface 19 according to FIG. 11 runs in the sliding direction of the bolt 4 from top to bottom and is located above the pin-shaped projection 20 , so that the linear movement of this projection 20 intersects this inclined surface, which means when actuated that this inclined guide surface 19 is moved into an approximately horizontal position, which leads to the pivoting of the lever 16 about its pivot axis 16 a. Thus, a arranged at a distance from the pivot axis 16 a of the pivot lever 16 actuation jump 21 actuate a switching arm 22 of the switch 15 .

In the exemplary embodiment according to FIGS. 1 to 8, the switching device 2 already mentioned is provided, in which the bolt 4 is firmly connected to the slide 3 . This slide 3 has a with an inclined surface 23 limited as a guide surface opening or recess 24 into which the projecting from the lever 16 protrusion 18 engages, so that the displacement of the bolt 4 and therefore also of the slider 3 and the inclined limit 23 of the opening, or Recess 24 adjusts the projection 18 and thus the lever 16 when the bolt 4 is moved into its open position, also in this embodiment, and moves it against the switch 15 or microswitch and pivots up about a fixed pivot axis 16 a.

In both exemplary embodiments, a similarly designed latching device 17 is provided. This has a spring-loaded, tapering locking projection 25 at its free end and a locking recess 26 is provided in the lever 16 , into which the locking projection 25 engages when the bolt 4 is withdrawn and the pivoted lever 16 according to FIGS. 4 and 12. As a locking element or locking device 17 , a leaf spring is provided in both exemplary embodiments, which has a roughly V- or U-shaped free end as Rastvor jump 25 , which fits into a groove-shaped locking recess 26 of the lever 16 . The leaf spring of this locking device 17 presses its locking projection 25 transversely to the lever movement and approximately in the axial direction of the pivot axis 16 a of the lever 16 against the lever 16 in the locking recess 26 . It can be seen in both Ausführungsbei play that this leaf spring is arranged approximately vertically and is fixed below its resiliently movable locking projection 15 on a housing part.

In both embodiments is also contemplated that a the already mentioned trigger device, a releasing projection is at the in discarding last twisted Zuhaltungs- or combination disk 9 as to release the latching and for moving back the lever 16 is provided 27 that the lever 16, and possibly also the detent spring , acted on in such a way that the latching connection is released and the lever 16 is moved back into the starting position. In this case, a second projection 28 is arranged on the lever 16 , which can be acted upon by the release projection 27 of the last tumbler disc 9 a when it is rotated in the sense of a movement directed away from the switch 15 . The release projection 27 is arranged at a peripheral point of the last discarded tumbler 9 a, which passes the lever 16 and its second projection 28 when discarding, especially at the end of the discarding. This is indicated in FIGS. 8 and 14.

On the lever 16 there is also a second latching point 29 for interacting with the latching device or the latching projection 25 , which releasably fixes the lever 16 in the initial position when the bolt 4 is closed with the tumbler disks 9 rejected. As a result, the locking projection 25 remains in contact with the lever 16 without the locking spring itself being constantly under strong deformation pressure when the permutation lock assumes its closed position.

In the exemplary embodiment according to FIGS. 1 to 8, the permutation lock 1 or the switching device 2 connected to it has an electromagnetically actuated lock 30 for the bolt or the slide 3 connected to it, which is fed by the already mentioned alarm system. To operate this lock 30 , a second switch or microswitch 31 operated by the bolt 4 or the slide 3 connected to it is open. In this embodiment, the relationship as the appropriate electrical switch 31 serving Scheiber 3 has to actuate the electromagnetic lock 30 at the same time in the manner already described for the actuation of the lever 16 to act on the first electrical switch 15 and the shifter 3, therefore, serves two curve-shaped recesses, namely the already mentioned first recess 24 for pressing the lever 16 for the first switch 15 and a second recess 32 adjacent to it at a distance for pressing the second switch 31 . The distance between the recesses 24 and 32 corresponds approximately to that of the two switches 15 and 31 , so that to a certain extent a common actuation is possible.

The mode of operation of the permutation lock 1 with the switching device 2 according to FIGS. 1 to 8 is as follows:

If the bolt 4 is withdrawn from its closed position shown in FIGS. 1 and 2 together with the slide 3 and the shaft 5 of a bolt work into the open position of the lock 1 shown in FIG. 4, the lever 16 is moved through the inclined surface 23 of the recess 24 and raised its projection 18 from the originally obliquely downward position ( FIG. 2) into the approximately horizontal position according to FIG. 4 and actuates the switch 15 . This can set the alarm system accordingly or activate a display "lap open". In this position, the lever 16 is fixed to its associated locking recess 26 with the aid of the locking projection 25 .

FIG. 5 shows a position in which retraction of the bolt in the open position via the lock 30 and a second switch 31 cooperating therewith is prevented.

In Fig. 6 the bolt 4 and the slide 3 is released from the lock 30 so that it can also be moved back into the closed position shown in FIG. 7. However, the lever 16 remains in its approximately horizontal upper position due to the latching and continues to act on the switch 15 . If the desired and necessary warping of the tumbler disks 9 and 9 a is now carried out on the axis of rotation 6, the release projection 27 located on the last tumbler disk 9 a finally reaches the area of the second projection 28 of the lever 16 and pivots the lever 16 against the latching force, so that the locking connection is released, back to the starting position. There, the lever can again engage with its second locking point 29 . Thus, the situation according to Figure 8 in accordance corresponds to Fig. Again the starting position Fig. 2 with the difference that the release projection 27 is just about in engagement with the second projection 28, and then a bit can be twisted.

In the embodiment according to FIGS. 9 to 14, a comparable actuation of the permutation lock 1 is provided with the difference that a pin-like projection 20 engaging directly on the bolt 4 engages under and raises the lever 16 on its projection 18 . In this case, the lever 16 , the projection 20 connected to the bolt 4 and the microswitch 15 are arranged within the lock housing of the permutation lock 1 .

If the bolt 4 is retracted from its closed position shown in FIG. 11 into the open position of the lock shown in FIG. 12, the lever 16 is also raised and the switch 15 is actuated.

Is in the usual way the bolt 4 shown in FIG. 13 brought back into the closed position, the lever 16 remains by latching with the latching projection 25 in this position, that is acted upon barren switch 15 on. Only when all combination or tumbler disks 9, including the last tumbler disk 9 a, are rotated so that the opening secret is no longer recognizable, does the release projection 27 of the last tumbler disk 9 a again enter the region of a second projection 28 of the lever 16 and express it out of its locked position back down into the starting position, as can be seen in FIG. 14. FIG. 13 shows that the second projection 28 projects into the path of the release projection 27 when the lever 16 is in the up position and does not do so anymore when the release projection 27 according to FIG. 14 has passed this second projection 28 . Now the switch 15 is released again so that it can be displayed "bolt closed and tumbler discs discarded" or the alarm system assumes its desired state.

The permutation lock 1 with a conventional cam disk 7 and combination or tumbler disks 9 , which can be arranged by twisting in the sense of a setting secret, has on its bolt 4 a projection 20 or a recess 24 , which is also actuated by one of the bolts 4 or with slider 3 connected to it can be arranged as the first actuating element for a lever 16 which can be pivoted by the locking movement. In one end position, this lever 16 acts on an electrical switch 15 and in the other end position it releases this switch 15 . In this case, a latching device, in particular a latching spring with a latching projection 25, is provided, which detachably holds the lever 16 in the display position of the switch 15 . Furthermore, a second actuating element, which acts in the opposite direction to the lever 16, is provided in the form of a release projection 27 , upon actuation of which the catch or detent spring disengages from the lever 16 and releases it. This second actuating element is arranged on the last discarded combination or tumbler disc 9 a at a circumferential point, which passes the lever 16 and a stop provided on it as a second projection 28 when discarding the tumbler disc 9 a. Only when all tumbler disks are discarded, the switch 15 again receives the position it occupies when the lock is completely closed with discarded tumbler disks 9 .

Claims (17)

1. permutation lock ( 1 ) with a cam disc ( 7 ) which can be actuated by a rotary knob or rotary drive for setting a plurality of tumbler disks ( 9 ) which can be adjusted to any setting secrets and are provided on their circumference with a recess ( 8 ) each, with one on a bolt ( 4 ) Articulated lever ( 10 ), which has a nose ( 11 ) engaging on the circumference of the cam disc ( 7 ) and a lateral finger ( 12 ) which is arranged transversely over the circumferences of the tumbler disc ( 9 ), whereby for the entry of the finger ( 12 ) in the associated recesses ( 8 ) of each tumbler disc, when these are aligned with each other under the finger ( 12 ), on the circumference of the cam disc ( 7 ) there is an insertion opening ( 13 ) for the lever ( 10 ) or its nose ( 11 ) and a cam ( 14 ) of the cam disk ( 7 ) is also provided for displacing the bolt ( 4 ) into its closed position, characterized in that on ode r in the permutation lock ( 1 ) in the circuit of a device and / or an alarm system arranged switch ( 15 ) and this actuating switching element ( 16 ) are provided, which switching element ( 16 ) by the movement of the lock bolt ( 4 ) in its open position actuates the switch ( 15 ), that a latching device ( 17 ) for fixing the switching element ( 16 ) is provided in this position, and that on the discs discarded when discarding the tumbler ( 9 ) last rotated tumbler disc ( 9 a) a trigger device for Release the locking and for moving back the switching element ( 16 ) is arranged in the opposite position. 2. permutation lock according to claim 1, characterized in that the switch ( 15 ) with the bolt ( 4 ) actuated by the particularly raised or releasably held switching element ( 16 ) and is released when discarded tumbler discs ( 9 , 9 a). 3. permutation lock according to claim 1 or 2, characterized in that the electrical switch ( 15 ) is a microswitch which in one switch position a signal "lock open" and / or in the other switch position a signal "lock in the closed position and tumbler disks rejected "triggers. 4. permutation lock according to one of claims 1 to 3, characterized in that the switching element ( 16 ) a next to the bolt ( 4 ) mounted lever, in particular a pivot lever, is that the bolt ( 4 ) and / or the lever ( 16 ) have a projection ( 18 ) and an inclined surface on which the movement of the bolt ( 4 ) in a transverse movement or Schwenkbe movement of the lever ( 16 ) against the switch ( 15 ) is converted to. 5. permutation lock according to one of claims 1 to 4, characterized in that the projection ( 18 ) on the lever ( 16 ) projects transversely to its direction of movement and can be acted upon directly or indirectly by the bolt ( 4 ). 6. permutation lock according to one of claims 1 to 5, characterized in that the projection ( 18 ) on the lever ( 16 ) has a in the sliding direction of the bolt ( 4 ) oriented guide surface ( 19 ), which at least when in the closed position bolt ( 4 ) is arranged obliquely and can be raised, in particular swung up, by the bolt movement and the bolt ( 4 ) or an element connected to the bolt ( 4 ) together with the lever ( 16 ). 7. permutation lock according to one of claims 1 to 6, characterized in that on the bolt ( 4 ) protrudes ( 20 ) which engages under the guide surface ( 19 ) of the lever ( 16 ) and in the displacement of the bolt ( 4 ) in Open position lifts the lever ( 16 ) due to the inclined position of the guide surface ( 19 ) against the switch ( 15 ), in particular microswitch, in particular pivots up. 8. permutation lock according to one of claims 1 to 7, characterized in that the bolt ( 4 ) or a slide firmly connected to the bolt has a particular with an inclined surface ( 23 ) limited opening or recess into which the lever ( 16 ) protruding projection ( 18 ) engages, so that the displacement of the bolt ( 4 ) or the slide ( 3 ) and the oblique limitation of the opening or recess ( 24 ) the projection ( 18 ) and thus the lever ( 16 ) when moving the bolt ( 4 ) adjusted to its open position, in particular moved or pivoted against the switch ( 15 ) or microswitch. 9. permutation lock according to one of the preceding claims, characterized in that as a locking device ( 17 ) a spring-loaded, tapering at its free end locking element and on the lever ( 16 ) a locking recess ( 26 ) are provided, in which the locking element when the bolt is withdrawn ( 4 ) and accordingly moved or pivoted lever ( 16 ) engages. 10. permutation lock according to one of claims 1 to 9, characterized in that a leaf spring with an approximately V- or U-shaped free end ( 25 ) is provided as a locking element, which in a groove-shaped locking recess ( 26 ) of the lever ( 16 ) fits, and that the leaf spring presses its locking projection ( 25 ) transversely to the lever movement and in particular approximately in the axial direction of the pivot axis ( 16 a) of the lever ( 16 ) against the lever ( 16 ) and into the locking recess ( 26 ). 11. permutation lock according to one of claims 1 to 10, characterized in that on the last twisted when discarding tumbler or combination disc ( 9 a) a release projection ( 27 ) is provided which acts on the lever ( 16 ) and / or the detent spring in such a way that the locking connection is released and the lever ( 10 ) is moved back into the starting position. 12. permutation lock according to one of claims 1 to 11, characterized in that on the lever ( 16 ) a second projection ( 28 ) is arranged, the release device ( 27 ) or the like triggering device of the last tumbler disc ( 9 a) when it is rotated in the sense of a movement away from the switch ( 15 ). 13. permutation lock according to one of claims 1 to 12, characterized in that on the lever ( 16 ) a second locking point ( 29 ) for cooperation with the locking projection ( 25 ) is provided which the lever ( 16 ) in the starting position with the bolt closed with discarded tumbler disks ( 9 ) releasably sets. 14. permutation lock according to one of claims 1 to 13, characterized in that the release projection ( 27 ) on the last discarded tumbler disc ( 9 a) is arranged at a circumferential point, the lever ( 16 ) and its second projection ( 28 ) or The like happens when discarding, especially at the end of the discard. 15. Permutation lock according to one of the preceding claims, characterized in that it has an electromagnetically actuated lock ( 30 ) for the bolt ( 4 ) which is fed by the alarm system and that for actuating this lock ( 30 ) a second one of the bolt ( 4 ) or a slide ( 3 ) actuated with this switch or microswitch ter ( 31 ). 16. permutation lock according to claim 15, characterized in that the actuator for actuating the electromagnetic lock ( 20 ) or the provided electrical switch ( 31 ) serving slide ( 3 ) at the same time for actuating the lever ( 16 ) for acting on the first electrical switch ( 15 ) and that this slide ( 3 ) has two curved recesses ( 24 , 32 ) for acting on the one hand the second switch ( 31 ) and on the other hand the lever ( 16 ) for the first switch ( 15 ), which are adjacent to each other at a distance are in which the switches are arranged. 17. Permutation lock according to one of claims 1 to 16, characterized in that a projection or a recess on the bolt or on a slide actuated by the bolt or the like is provided as the first actuating element for a lever ( 16 ), in particular pivot lever, which can be actuated by the bolt movement thereof , which acts on an electrical switch ( 15 ) in one end position and releases this switch in the other end position, that a latching device, in particular a latching spring, is provided which detachably holds the lever ( 16 ) in the display position of the switch ( 15 ) , and that a second, oppositely acting on the lever actuating element is provided, upon its actuation the catch or detent spring disengages from the lever ( 16 ), and that this second actuating element on the last discarded combination or tumbler disc ( 9 a) at a circumferential point is arranged, the lever ( 16 ) and one at i hm provided stop ( 28 ) or the like when discarding the tumbler disc ( 9 a) happens.