EP2372054B1 - Permutation lock - Google Patents

Description

The present invention relates to a permutation lock with a plurality of adjusting rollers, which are rotatable about a common axis to set a locking secret, and with a locking mechanism having a blocking element, wherein the blocking element with respect to the axis of rotation of the adjusting rollers in the axial direction from a blocking position to a release position is displaceable, wherein the adjusting rollers are coupled in rotation with axially movable driver elements.

Such a permutation lock is for example in DE 43 30 478 C1 described. It has a locking element provided with a plurality of radially projecting closing beards in the form of a prestressed latch and a plurality of tumbler rings coupled to the adjusting rollers. If the locking secret has been set, the locking dogs can be inserted through appropriately adjusted push-through openings in the tumbler rings. The blocking of the blocking element takes place by turning the tumbler rings.

There is in such a permutation lock the problem that due to the axial movement clearance between the blocking element and the tumbler rings and due to manufacturing tolerances, the respective release positions of the tumbler rings can be scanned in unauthorized manner successively, what the blocking element is acted upon in the axial direction and simultaneously the tumbler rings in succession be twisted, which can be felt through the locking dogs, the push-through openings in the tumbler.

In the DE 43 30 478 C1 Therefore, it is proposed to provide the blocking element additional lugs, which are upstream of the locking beards in the axial direction and block the respective tumbler in the direction of rotation when the blocking element is brought into a scanning position. In such a permutation lock, however, there are high demands on the manufacturing tolerances, whereby the production is undesirably expensive.

In the DE 86 17 170 U1 a permutation lock is provided in which are provided to facilitate a scan of the Schließbartdurchstecköffnungen on the tumbler more distributed over the circumference arranged and profiled according to the Schließbartdurchstecköffnungen recesses. As a result, in the manipulation described above, the recesses are also scanned, which thereby generate the same feeling as when scanning the cam opening openings and thus considerably complicate the unauthorized opening. Ultimately, however, an unauthorized opening by scanning is not completely ruled out here.

From the US 4 111 014 A a permutation lock with the features of the preamble of claim 1 is known.

The DD 269 415 A1 also discloses such a permutation lock.

It is the object of the present invention to provide a permutation lock of the type mentioned, in which the security against unauthorized opening is improved.

The object is achieved by a permutation lock with the features of claim 1.

In the permutation lock according to the invention, in the blocking position of the blocking member, a closing member (e.g., striker, anchor, block, buckle, etc.) may be fixed or fixable directly or indirectly to the locking mechanism. The said blocking element can thus interact directly with the closing part, or the blocking element is coupled with a locking element (for example a catch) which cooperates with the closing part. In the blocking position of the blocking element, the closing part is fixed to the locking mechanism. In the release position of the blocking element, the closing part is released for removal. Thus, the position of the axially displaceable blocking element determines the locking state of the locking mechanism. However, the blocking element and / or the locking mechanism which can be fixed on the locking part need not at all have a plurality of separate closing struts which interact with the locking mechanism (in particular with a respective tumbler), as is common in known permutation locks.

The axial elevations are formed on one or both axially facing end faces of the respective driver element with respect to a normal plane to the axis of rotation of the adjusting rollers. The driver elements thus have a varying thickness in the circumferential direction, which is maximum in the region of the elevations. The angular position of the respective axial elevation or the angular position of the peripheral region with the greatest thickness relative to the respective adjustment roller corresponds to the secrecy of secrecy. Only by a complete setting of the secret of secrecy, so only by a corresponding rotation of the Last adjusting, all axial elevations are aligned with each other and in relation to the blocking element in alignment and coupled by mutual application in the axial direction, that the blocking element is axially displaced into the release position. In other words, the blocking element is characterized thereby, and only axially offset in the release position, that brought by complete adjustment of the locking secret to the adjusting the axial elevations of all driver elements axially aligned with each other and thereby coupled in terms of force in the axial direction.

As a result, the adjusting rollers are force-decoupled from the closing part in the blocking position of the blocking element, which makes it impossible or at least considerably more difficult for the closing secret to be scanned with simultaneous axial application of force to the closing part. The axial displacement of the blocking element takes place irrespective of which adjustment roller is set last to its respective secrecy of secrecy. Thus, as soon as the closing secret is not set only with an adjusting roller, a force flow acting on the blocking element is interrupted so that the blocking element arrives in the blocking position or remains in the blocking position.

If a directional statement is mentioned in connection with the invention, this generally refers to the axis of rotation of the adjusting rollers.

It should also be noted that the aforementioned rotationally effective coupling of the driver elements with the adjusting rollers is to be understood as a coupling which is non-rotatable at least in one operating position of the locking mechanism, and which may optionally be temporarily suspended (in particular for changing the secrecy of secrecy, such as will be explained below). According to the invention, an axially displaceable rolling body is provided between adjacent driver elements. This rolling element, such as a ball or roller, reduces the friction between the driver elements when adjusting the adjustment, so that the ease of use of the permutation and increases friction wear is reduced.

According to an advantageous embodiment of the invention, the driver elements in the circumferential direction of the control ramps, wherein the driver elements via the control ramps indirectly (via rolling elements) cooperate to move the blocking element axially. The control ramps are in this case run-up bevels, which facilitate the alignment of the axial elevations of the driver elements when setting the privacy of the lock.

Preferably, the control ramps extend substantially semicircular with respect to the axis of rotation of the adjusting rollers. As a result, the control ramps can extend over a large circumferential area of the respective driver element. In particular, the control ramps can extend over a larger circumferential area than the angular pitch of the adjusting rollers (angular difference between two adjacent adjustment positions). Thus, a "smooth" transition, i. an over a wide angular range extending transition between the blocking position and the release position can be effected, which contributes to increased security against unauthorized sampling (so-called picking).

When the permutation lock has a housing, it is preferred the at least one of the rolling elements with respect to the axis of rotation of the adjusting rollers is held in a fixed angular position. In this way, it is ensured that the rolling elements are in a position when the locking secret is set, which makes it possible to move the blocking element into the release position. In particular, the rolling elements are always in alignment with the blocking element. The fixing of the rolling elements can for example be effected by provided on the housing elongated recesses, which are aligned parallel to the axis of rotation of the adjusting rollers. Thereby, the rolling elements are fixed with respect to the circumferential direction, but have the axial clearance required for blocking or releasing the blocking element. Alternatively or additionally, the rolling elements can also be held against rotation on the blocking element. According to a further advantageous embodiment, the permutation lock - as already mentioned - on a closing part, which is locked by means of the blocking element directly or indirectly to the locking mechanism. The closing part may be, for example, a locking bolt, an anchor or a clamp, as is customary in a permutation lock which can be used as a two-wheel lock. Furthermore, however, the closing part can also comprise a catch receptacle, for example a pivotable latch or a buckle of a suitcase lock or a tab of a zipper to be secured on a piece of luggage.

Preferably, the permutation lock has a translation device for translating the offset path of the blocking element into an offset of a locking element which is greater than the offset of the blocking element. The translation device may for example be formed by a pivot lever to allow an indirect locking of a closing part. In this case, for example, engage the blocking element at one end of the pivot lever, while the other end engages behind a block or releases. The locking element but can also be a backdrop guided coupling pin, which will be explained below. By providing a translation device, the offset path of the blocking element can be chosen to be relatively short, so that the axial elevations of the driver elements can be dimensioned relatively small, which in turn allows a compact design of the castle.

Alternatively or additionally, the permutation lock may comprise a deflection device for deflecting the axial direction of displacement of the blocking element in a different direction of displacement of a locking element of the locking mechanism (for example latch, bolt). For example, may be provided for the locking element coupled to the locking element an obliquely or perpendicular to the axis of rotation of the adjustment rollers extending offset direction. This allows the permutation lock to be better adapted to the particular application.

According to a further advantageous embodiment of the invention, the locking mechanism has a locking element coupled to the locking element for locking a closing part, which is adjustable between a locking position and an unlocking position and is generally referred to below as a trap. Such a trap is adjustable with respect to the axis of rotation of the adjusting rollers, for example in the diagonal direction. An adjustment of the locking position in the unlocked position of the case can be done for example by a removal movement of the closing part or thereby supported. Conversely, the adjustment of the case from the unlocking position to the locking position can be effected by an insertion movement of the closing part.

According to an advantageous development, the case, the blocking element and a housing of Permutationsschlosses a respective backdrop, wherein in the scenes a common coupling pin is added, which also adjustable by the displacement of the blocking element from the blocking position to the release position from a blocking position to a release position is to adjust the case in the unlocked position or release for an adjustment in the unlocked position. The coupling pin is adjustable in particular in the vertical or diagonal direction with respect to the axis of rotation of the adjusting rollers. This consisting of the scenes and the common coupling pin arrangement preferably forms the above-mentioned translation device, so that the offset path of the coupling pin is greater than the offset path of the blocking element.

Preferably, the scenery of the blocking element and the backdrop of the housing are inclined relative to each other, that the coupling pin is adjustable solely by the displacement of the blocking element. The two aforementioned scenes thus form a positive guidance for the coupling pin.

It is furthermore preferred if the coupling pin and / or a locking pin provided on the blocking element cooperate with a locking section of a gate provided in the case such that in the blocking position of the coupling pin the catch is locked in the locking position and in the release position of the coupling pin the catch between the locking position and the unlocking position is adjustable. By blocking the trap both by the coupling pin and by the locking pin is a particularly reliable blocking of the trap. But it is also possible to block the trap solely by the locking pin, so that a coupling pin and the associated scenes are not provided need. Furthermore, instead of a common link for the locking pin and the coupling pin and locking portions can be provided on separate scenes of the case.

Preferably, the scenery of the blocking element and the backdrop of the housing at an angle to each other obliquely, which is smaller than 45 ° and in particular about 30 °. As a result, the above-mentioned translation function is realized.

According to an advantageous embodiment, the latch is biased in the direction of the unlocked position and / or the blocking element is biased in the direction of the blocking position. By biasing the case, a removal movement of the closing part is supported. In addition, it is prevented that the case falls back into its locking position when the closing part is not inserted, thereby preventing insertion of the closing part into the lock. By biasing the blocking element ensures that the blocking element is automatically placed in the blocking position as soon as the secret is no longer set.

It is preferred if the driver elements rotatably, but are coupled axially movable with a respective guide ring, wherein the guide rings are rotatable about the axis of rotation of the adjusting rollers. The guide rings thus serve to drive the respective driver element in the direction of rotation and in turn are rotationally coupled to a respective adjusting roller.

Preferably, the case is additionally blocked by the guide rings in their locking position, as long as the locking secrecy is not set to the secrecy of secrecy. The guide rings act here similar to tumblers in generic Permutationsschlössern and prevent in addition to the blocking element or the coupling pin that the case can be put in their unlocked position without authorization. Even with a violent destruction of the blocking element and / or the coupling pin unauthorized opening of the lock would not be possible with not set privacy secret. In this case, it is preferable if the trap is also aligned parallel to the axis of rotation of the adjusting rollers during the adjusting movement in order to be able to cooperate with all guide rings at the same time.

According to another advantageous embodiment, the guide rings are blocked in the direction of rotation when the locking secret is set to the adjusting rollers and the case is set in the unlocked position. Preferably, the case engages in its unlocked position provided in the guide rings recesses. This avoids, on the one hand, that when the closing part is removed, the guide rings are accidentally rotated by means of the adjusting rollers, which would prevent re-insertion of the closing part into the lock. On the other hand, the blocking of the guide rings prevents them from unintentionally turning when the closing secret is explained in more detail below.

Preferably, in an operating position of the locking mechanism, the adjusting rollers and the guide rings rotatably coupled to each other and in a release position of the locking mechanism, the adjusting rollers and the guide rings rotatable relative to each other to allow a change in the secrecy of secrecy. To change the secrecy of closing so the guide rings and the adjusting rollers can be temporarily decoupled from each other, so that the adjusting rollers for setting a new privacy with respect to the closing Rotate guide rings and thus also with respect to the axial elevations of the driver elements.

The permutation lock preferably has non-rotatably held latching rings which have at least one resilient latching section which can be latched to latching recesses of the adjustment rollers. As a result, a locking of the adjusting rollers is achieved both in the operating position and in the above-mentioned release position of the locking mechanism in a simple and cost-effective manner.

Furthermore, it is preferred if the respective driver element is formed as a ring or ring segment (in particular semicircular), wherein at least one end face of the driver element has a circumferentially extending control ramp.

Further preferred embodiments of the invention will become apparent from the description, the drawings and the dependent claims.

Fig. 1

ein erfindungsgemäßes Permutationsschloss in Explosionsdarstellung;

Fig. 2 und 3

Längsschnitte des Schlosses von Fig. 1 in verschiedenen Betriebszuständen;

Fig. 4 bis 6

Längsschnitte des Schlosses von Fig. 1 in verschiedenen Betriebszuständen, wobei die Schnittebene bezüglich der Schnittebene der Fig. 2 und 3 um eine Längsachse des Schlosses geneigt ist;

Fig. 7

eine perspektivische Ansicht eines Gehäuses des Schlosses von Fig. 1;

Fig. 8

eine perspektivische Ansicht eines Blockierelements des Schlosses von Fig. 1;

Fig. 9

eine perspektivische Ansicht des Gehäuses von Fig. 7 aus einem anderen Blickwinkel;

Fig. 10

eine perspektivische Ansicht eines Schließbolzen des Schlosses von Fig. 1 in halbtransparenter Darstellung;

Fig. 11

eine perspektivische Ansicht eines Führungsrings des Schlosses von Fig. 1;

Fig. 12

eine perspektivische Ansicht eines Mitnehmerelements des Schlosses von Fig. 1;

Fig. 13

das Mitnehmerelement von Fig. 12 in Draufsicht;

Fig. 14

eine perspektivische Ansicht eines Rastrings des Schlosses von Fig. 1; und

Fig. 15

eine perspektivische Ansicht eines Gehäuses einer alternativen Ausführungsform;

Fig. 16

eine perspektivische Ansicht eines Blockierelements gemäß der Ausführungsform von Fig. 15.

The invention will now be described by way of example with reference to the drawings. It shows:

Fig. 1

an inventive Permutationsschloss in exploded view;

FIGS. 2 and 3

Longitudinal sections of the castle of Fig. 1 in different operating states;

4 to 6

Longitudinal sections of the castle of Fig. 1 in different operating states, wherein the sectional plane with respect the cutting plane of the Fig. 2 and 3 is inclined about a longitudinal axis of the lock;

Fig. 7

a perspective view of a housing of the castle of Fig. 1 ;

Fig. 8

a perspective view of a blocking element of the castle of Fig. 1 ;

Fig. 9

a perspective view of the housing of Fig. 7 from a different angle;

Fig. 10

a perspective view of a locking pin of the castle of Fig. 1 in semitransparent representation;

Fig. 11

a perspective view of a guide ring of the castle of Fig. 1 ;

Fig. 12

a perspective view of a driver element of the castle of Fig. 1 ;

Fig. 13

the driver of Fig. 12 in plan view;

Fig. 14

a perspective view of a latch ring of the castle of Fig. 1 ; and

Fig. 15

a perspective view of a housing of an alternative embodiment;

Fig. 16

a perspective view of a blocking element according to the embodiment of Fig. 15 ,

According to Fig. 1 to 6 a permutation lock 10 according to the invention comprises a housing 12 having a cylindrical portion 14 and an end flange portion 16, which has an axial receptacle 18 for a locking pin 20. At the opposite end of the flange portion 16 of the housing 12, a lid 24 is permanently attached. The lid 24 may not shown means for attachment to the one end of a loop, not shown here (eg steel cable) have. Between the flange portion 16 and the cover 24, four adjusting rollers 22a to 22d are rotatably received about a cylindrical axis 14 about a rotational axis D in the embodiment shown here.

Between the cylindrical portion 14 of the housing 12 and the adjusting rollers 22a to 22d, a cylindrical cavity is defined in which alternate guide rings 26a to 26d and locking rings 28a to 28d are arranged, wherein each adjusting roller 22a to 22d a guide ring 26a to 26d and a locking ring 28a is assigned to 28d. While the adjusting rollers 22a to 22d are fixed in the axial direction with respect to the housing 12 by the flange portion 16 and the cover 24, the guide rings 26a to 26d and the locking rings 28a to 28d are slidable on the cylindrical portion 14 in the axial direction.

The adjusting rollers 22a to 22d have on their inner circumference a plurality of elevations 34, the number of which corresponds to the number of adjustment marks 36 attached to the outer circumference. On the outer circumference of the guide rings 26a to 26d an equal number of protrusions 38 is provided, which engage in an operating state of the lock between the elevations 34 of the adjusting rollers 22a to 22d, so that each Adjusting roller 22a to 22d and the respective guide ring 26a to 26d are rotatably coupled.

To change the secrecy of secrecy, the guide rings 26a to 26d and adjusting rollers 22a to 22d can be disengaged. For this purpose, a recorded in the interior of the flange 16 adjusting ring 40 is provided, which has two actuating pins 42 which protrude from the end face of the flange portion 16 and 20 allow a rotation of the adjusting ring 40 with respect to the housing 12 with removed locking pin 20. The adjusting ring 40 has two ramps 44 which cooperate with corresponding portions (not shown) of the flange portion 16 such that when the adjusting ring 40 is rotated from an operating position to a release position, the adjusting ring 40 is released axially in the direction of the flange portion 16. Driven by the force of a spring 30 arranged concentrically in the cover 24, the adjusting ring 40 and at the same time the guide rings 26a to 26d and the locking rings 28a to 28d are adjusted axially in the direction of the flange section 16 so that the elevations 34 of the adjusting rollers 22a to 22d and the Elevations 38 of the guide rings 26a to 26d temporarily out of engagement. Thereby, the adjusting rollers 22a to 22d can be adjusted relative to the guide rings 26a to 26d, so that the locking secret can be changed by the user.

As in particular in Fig. 11 can be clearly seen, each guide ring 26a to 26d on its inner circumference on an approximately semi-circular inner flange 46, which is provided with a recess 48. In the interior of the guide rings 26a to 26d, a respective separate driver element 32a to 32d is accommodated, which increases in size FIGS. 12 and 13 is shown. The driver elements 32a to 32d are also formed approximately semicircular and with respect to their radius of curvature of the Adjusted guide ring 26a to 26d. The guide rings 26a to 26d, the driver elements 32a to 32d and the inner flanges 46 are adapted to one another such that the driver elements 32a to 32d axially slidably, but rotatably received in the guide rings 26a to 26d.

The driver elements 32a to 32d have at their end faces concave, each with respect to an axis A and an axis B ( Fig. 13 ) symmetrical control ramps 50 on. The control ramps 50 are shaped such that the driver elements 32a to 32d have a maximum thickness region or an axial projection 54 at their center, while the thickness decreases towards the end regions 52. For better understanding, it should be mentioned that "thickness" here means an effective thickness measured in the axial direction approximately in the region of the inner circumference, but not the thickness in the region of the outer circumference of the driver elements 32a to 32d, which according to FIG FIGS. 12 and 13 is largely constant.

As in particular in Fig. 2 and 3 can be seen well, between adjacent guide rings 26a to 26d each have a ball 56a to 56c arranged, which are held axially displaceable in, provided on the outer circumference of the cylindrical portion 14 elongated trough-like recesses 57a to 57c, but with respect to the circumferential direction.

As in Fig. 9 can be clearly seen, three cams 58a to 58c are provided in the region of the recesses 57a to 57c, which each extend over approximately half the circumference of the cylindrical portion 14 and into a corresponding semicircular recess 60 of the three locking rings 28a to 28c ( Fig. 14 ) engage in order to fix these locking rings 28a to 28c rotationally fixed, but axially displaceable on the cylindrical portion 14. To fix the fourth locking ring 28d has the cylindrical portion 14 projections 62 which correspond in their cross section to the cam 58 a to 58 c, in the axial direction, however, have a substantially greater extent and extend to the end 24 received in the lid 24 of the cylindrical portion 14.

The locking rings 28a to 28d ( Fig. 14 ) have on their outer circumference two opposing, spring-in spring-compressing spring portions 64, in the middle of each of which a radially outwardly projecting locking cam 66 is formed. The locking cams 66 are formed with recesses 68 (FIG. 2) formed on the inner circumference of the adjusting rollers 22a to 22d. Fig. 1 ) latched. It is understood that the number of locking recesses 68 corresponds to the number of setting marks 36.

In the interior of the cylindrical portion 14, a blocking element 72 is arranged axially displaceable, wherein a corresponding cross-sectional profiling of the blocking element 72 and the inner contour of the cylindrical portion 14 and slits 74a, 74b provided therein (FIG. Fig. 7 and 9 ) prevent rotation of the blocking element 72 with respect to the axis of rotation D.

Inside the blocking element 72 (FIG. Fig. 8 ), a slot-shaped receptacle 76 is provided for a latch 78, wherein the receptacle 76 is aligned with the slot 74a in the mounted state of the lock. The blocking element 72 has a flange-like actuating portion 80, which on its side facing the flange 16 has a control surface 82 which cooperates with the driver element 32d. On the control surface 82 opposite side of the actuating portion 80, a guide pin 84 for guiding a spring 86 is arranged. The spring 86 is held in a corresponding bore of the lid 24 and biases the blocking element 72 in the direction of the flange portion 16 and thus in a blocking position.

The blocking element 72 (FIG. Fig. 8 ) further comprises a slot formed as a slot 88, which extends perpendicular to the axis of rotation D. Finally, at the opposite end of the guide pin 84, a laterally projecting locking pin 90 is provided, which cooperates with the case 78 in a manner yet to be explained.

Hereinafter, the structure of the locking bolt 20 will be described in more detail, which serves as a closing part and which in particular in the 4 to 6 and 10 easy to recognize. The locking pin 20 has a base body 92, which is connectable to the other end of the above-mentioned, not shown loop. On the front side, a cylindrical locking pin 94 is provided, which is accommodated in the locking position in the receptacle 18 of the housing 12 and has a longitudinal slot 96. In the longitudinal slot 96, a projection 98 is provided with a front-side run-on slope, which can engage behind a corresponding locking section 100 of the latch 78 (FIG. Fig. 4 and 5 ).

The trap 78 (see in particular 4 to 6 ) has oblique guide portions 102a, 102b which cooperate with oblique guides 104a, 104b formed in the interior of the cylindrical portion 14 and guide the latch 78 so as to move between the locking position (FIG. Fig. 2 to 5 ) and the unlocking position ( Fig. 6 ) with respect to the axis of rotation D in the diagonal direction translationally, ie without a superimposed pivotal movement, can move. In this case, a straight edge section 106 formed on the upper side of the latch 78 always runs parallel to the axis of rotation D. The latch 78 also has a guide 110, which has a plurality of differently oriented sections whose function will be explained in more detail below. An effective between the latch 78 and the lid 24 spring 108 biases the trap in the direction of Fig. 6 shown unlocked position before.

How best in Fig. 4 can be seen, is also provided in the interior of the cylindrical portion 14, a slot formed by a slot 112, which is inclined relative to the guide 88 of the blocking element 72 by an angle of approximately 30 °. In the scenes 88, 110, 112, a common coupling pin 114 is received, which is preferably made of hardened steel. The interaction of the scenes 88, 110, 112 with the coupling pin 14 will be explained in more detail below.

The operation of the permutation lock 10 will now be described. In the presentation according to Fig. 2 and 4 is the latch 78 in the locked position and the blocking element 72 in the blocking position. The three adjusting rollers 22a to 22c are in an adjustment position corresponding to the locking secret, while the fourth adjusting roller 22d is in a different from the closing secret adjustment position. Accordingly, the axial elevations 54 of the driver rings 32a to 32c ( FIGS. 12 and 13 ) in the area of balls 56a to 56c. Since the closing secret has not yet been set on the fourth adjusting roller 22d, the elevation 54 of the driver element 32d is located outside a line of flight defined by the balls 56a to 56c and the control surface 82 of the blocking element 72, so that a gap exists between the ball 56c and the control surface 82 Area of lesser thickness is located. In this case, this area can be both a region of the driver element 32d which is at a distance from the elevation 54, that is to say the region of the control ramps 50, and also a region of the inner flange 46d formed on the guide ring 26d act, whose profile substantially corresponds to the profile of the control ramps in the end portions 52 of the driver element 32d, so that the inner flange 46 is flush with the driver elements 32a to 32d.

If now also the corresponding Verstellgeheimmis adjusted on the fourth adjusting roller 22d, the elevation 54 of the driver element 32d is brought into operative connection with the ball 56c on the one hand and the control surface 82 of the blocking element 72 on the other hand, as in Fig. 3 is apparent. As a result, the blocking element 72 moves, for example, by about 1.5 mm in the direction of the cover 24 and thus in its release position. If any adjusting roller 22a to 22d were now rotated in this operating position, the force acting between the flange section 16 and the actuating section 80 would be canceled, so that the blocking element 72 could return to the blocking position due to the force exerted by the spring 86.

Regarding 4 to 6 The further mode of action of the permutation lock 10 will now be explained. At the in Fig. 4 shown operating position, which the operating position of Fig. 2 corresponds, the blocking element 72 is in its blocking position. The latch 78 is in its locking position in which the locking portion 100 engages behind the projection 98 of the locking bolt 20. The latch 78 is locked by both the locking pin 90 of the blocking element 72, which cooperates with a locking portion 116 of the link 110, as well as by the coupling pin 114 which engages with a further locking portion 118 of the link 110. The gate 88 of the blocking element 72 and the link 112 of the cylindrical portion 14 form a kind of forced operation, which keeps the coupling pin 114 in its position due to its 30 ° restriction.

If the closing secret is now set on the adjusting rollers 22a to 22d, the blocking element 72 is moved away from its blocking position (FIG. Fig. 4 ) in the previously explained manner in the release position ( Fig. 5 ). As a result, the coupling pin 114 is offset along the slide 112 of the cylindrical portion 14 obliquely to the top right and thus gives the locking portion 118 of the latch 78 largely free. At the same time, the locking pin 90 arranged on the blocking element 72 is displaced to the right, so that it releases the locking portion 116. This operating position, which the operating position of Fig. 3 corresponds, is in Fig. 5 shown.

As before, the latch 78 is in its locked position, but is no longer blocked by the blocking element 72. The locking pin 20 can now be removed from the receptacle 18. In this case, the latch 78 moves with its guide portions 102a, 102b along the guides 104a, 104b in the diagonal direction to the top left ( Fig. 6 ). Another guide portion 120 of the link 110, which cooperates with the coupling pin 114, prevents tilting of the latch 78, so that the edge portion 106 is always parallel to the axis of rotation D.

At the beginning of the removal movement of the coupling pin 114 is further displaced by the movement of the latch 78 due to the remaining minimum engagement with the locking portion 118 so that the coupling pin 114, the unlocking movement of the latch 78 can no longer block.

Overall, the offset path of the coupling pin 114 in the slide 112 due to the 30 ° restriction of the scenes 88 and 112 is about 2.6 mm at a displacement path of the blocking element 72 of about 1.5 mm.

As in Fig. 6 can be clearly seen, is in the unlocked position of the latch 78 of the locking portion 100 is no longer in engagement with the projection 98, so that the locking pin 20 can be completely removed from the receptacle 18 to open the Permutationsschlosses 10.

The removal movement is supported by the spring 108, which the latch 78 even after removal of the locking pin 20 in the in Fig. 6 shown unlocked position holds. In this position, the spring 108 thus prevents an automatic falling back of the latch 78 in its locking position, which would make it difficult or prevent re-insertion of the locking pin 20 in the receptacle 18.

For reclosing the permutation lock 10, the locking pin 20 is inserted into the receptacle 18. The case is 78 of her in Fig. 6 Unlocked position shown in the reverse direction in the in Fig. 5 shown locked position back. An adjustment of the adjusting rollers 22a to 22d causes a displacement of the blocking element 72 from the release position (FIG. Fig. 5 ) in the blocking position ( Fig. 4 ). The locking pin 90 again engages the locking portion 116 and the coupling pin 114 is slid along the link 112 obliquely down to the left so that it comes into engagement with the locking portion 118.

As in the Fig. 11 and 14 can be seen, the guide rings 26a to 26d and the locking rings 28a to 28d recesses on its inner circumference 48 and 70, in which can be immersed in the displacement of the case 78 in the unlocked position of the edge portion 106. While the recesses 70 of the locking rings 28a to 28d are always aligned with the edge portion 106, this is the case for the recesses 48 of the guide rings 26a to 26d only when the locking secret is set to the adjusting rollers 22a to 28d. Otherwise, the non-recessed area of the inner flange 46 or the driver element 32a to 32d prevent displacement of the latch 78 into the unlocked position. As a result, an additional security feature is given, so that the case 78 can not be removed if not set privacy secret even if the rest of the locking mechanism (in particular the blocking element 72) should be disabled by a violent manipulation.

The FIGS. 15 and 16 show in the FIGS. 7 and 8 corresponding views a housing 12 and a blocking element 72 according to an alternative embodiment. The blocking element 72 is formed here trough-shaped and engages around the cylindrical portion 14 of the housing 12, which is thus designed to be particularly stable. In this inverted arrangement, the slot-shaped receptacle 76 (for the case) is accordingly not provided on the blocking element 72 but on the housing 12. The recesses 57a to 57c (for the balls) are partially provided on the housing 12 and partially on the blocking member 72. The three cams 58a to 58c (for the correspondingly shaped recesses of the locking rings) are here shorter and formed mittsymmetrisch.

Incidentally, the operation corresponds to that according to the embodiment of FIG FIGS. 7 and 8 However, with no locking pin 90 is provided, ie the locking of the trap is carried out solely by the coupling pin (in FIGS. 15 and 16 not shown).

In a modification of the embodiments described here, it is also possible to provide a radially insertable closing part instead of the axially insertable locking bolt. In this case, the blocking element could directly take over the function of the case or of a locking element, by directly engaging in a corresponding recess of the closing part, for example in a circumferential groove of a block, as shown in the above DE 43 30 478 C1 is known.

LIST OF REFERENCE NUMBERS

10

permutation

12

casing

14

cylindrical section

16

flange

18

admission

20

locking pin

22a - 22d

adjusting roller

24

cover

26a - 26d

guide ring

28a - 28d

locking ring

30

feather

32a - 32d

dogging

34

survey

36

setting mark

38

survey

40

adjustment

42

actuating pin

44

ramp

46

inner flange

48

recess

50

control ramp

52

end

54

survey

56a - 56c

Bullet

57a - 57c

depression

58a - 58c

cam

60

recess

62

head Start

64

spring section

66

locking cams

68

recess

70

recess

72

blocking element

74a, 74b

slot

76

admission

78

Cases

80

jig

82

control surface

84

spigot

86

feather

88

scenery

90

locking pin

92

body

94

locking pin

96

longitudinal slot

98

head Start

100

locking section

102a, 102b

guide section

104a, 104b

guide

106

edge portion

108

feather

110, 112

scenery

114

coupling pin

116

blocking portion

118

blocking portion

120

guide section

D

axis of rotation

Claims (14)

1. A permutation lock having a plurality of adjustment rings (22a - 22d) which are rotatable about a common axis (D) to set a secret code and having a locking mechanism which has a blocking element (72), wherein the blocking element (72) can be displaced with respect to the axis of rotation (D) of the adjustment rings (22a - 22d) in the axial direction from a blocking position into a release position, wherein the adjustment rings (22a - 22d) are rotationally operationally coupled to axially movable driver elements (32a - 32d), wherein the driver elements (32a - 32d) have axial elevated portions (54), and wherein the driver elements (32a - 32d) cooperate in an axial direction via the elevated portions (54) such that the blocking element (72) is only displaced axially into the release position by means of the driver elements (32a - 32d) in that the secret code is set at the adjustment rings (22a - 22d),
   characterized in that
   a respective axially displaceable rolling element (56a - 56c) is provided between adjacent driver elements (32a - 32d).
2. A permutation lock in accordance with claim 1,
   characterized in that
   the driver elements (32a - 32d) have control ramps (50) extending in the peripheral direction, with the driver elements (32a - 32d) cooperating indirectly via the control ramps (50) to displace the blocking element (72) axially.
3. A permutation lock in accordance with claim 2,
   characterized in that
   the control ramps (50) extend substantially in semicircular form with respect to the axis of rotation (D) of the adjustment rings (22a - 22d).
4. A permutation lock in accordance with any one of the preceding claims,
   characterized in that
   the permutation lock (10) has a housing (12) at which at least one of the rolling elements (56a - 56c) is held in a fixed angular position with respect to the axis of rotation (D) of the adjustment rings (22a - 22d).
5. A permutation lock in accordance with any one of the preceding claims,
   characterized in that
   the permutation lock (10) has a closing part (20) which can be locked directly or indirectly to the locking mechanism by means of the blocking element (72).
6. A permutation lock in accordance with any one of the preceding claims,
   characterized in that
   the permutation lock (10) has a transmission device to translate the displacement path of the blocking element (72) into a displacement path of a locking element (78) which is larger than the displacement path of the blocking element (72); and/or in that the permutation lock (10) has a deflection device to deflect the axial direction of displacement of the blocking element (72) into a direction of displacement of a locking element (78) differing herefrom.
7. A permutation lock in accordance with any one of the preceding claims,
   characterized in that
   the locking mechanism has a latch (78) which is coupled to the blocking element (72) for locking a closing part (20) and which is adjustable between a locking position and an unlocking position.
8. A permutation lock in accordance with claim 7,
   characterized in that
   the latch (78), the blocking element (72) and a housing (12) of the permutation lock (10) have a respective slotted part (88, 110, 112), with a common coupling pin (114) being received in the slotted parts (88, 110, 112) which is likewise adjustable from a blocking position into a release position by the displacement of the blocking element (72) from the blocking position into the release position to adjust the latch (78) into the unlocking position or to release it for an adjustment into the unlocking position.
9. A permutation lock in accordance with claim 8,
   characterized in that
   the slotted part (88) of the blocking element (72) and the slotted part (112) of the housing (12) extend obliquely to one another such that the coupling pin (114) is only adjustable by the displacement of the blocking element (72).
10. A permutation lock in accordance with claim 8 or claim 9,
    characterized in that
    the coupling pin (114) and/or a locking spigot (90) provided at the blocking element (72) cooperates/cooperate with a blocking section (116, 118) of a slotted part or of the slotted part (110) provided in the latch (78) such that the latch (78) is blocked in the locking position in the blocking position of the coupling pin (114) and the latch (78) is adjustable between the locking position and the unlocking position in the release position of the coupling pin (114).
11. A permutation lock in accordance with any one of the claims 8 to 10,
    characterized in that
    the slotted part (110) of the blocking element (72) and the slotted part (112) of the housing (12) extend obliquely at an angle to one another which is smaller than 45° and in particular amounts to approximately 30°.
12. A permutation lock in accordance with any one of the claims 7 to 11,
    characterized in that
    the latch (78) is pretensioned in the direction of the unlocking position; and/or in that the blocking element (72) is pretensioned in the direction of the blocking position.
13. A permutation lock in accordance with any one of the preceding claims,
    characterized in that
    the driver elements (32a - 32d) are rotationally fixedly, but axially movably, coupled to a respective guide ring (26a - 26d), with the guide rings (26a - 26d) being rotatable about the axis of rotation (D) of the adjustment rings (22a - 22d);
    and/or
    in that the driver elements (32a - 32d) are configured as rings or as ring segments whose end faces have control ramps (50) extending in the peripheral direction.
14. A permutation lock in accordance with any one of the claims 7 to 12,
    characterized in that
    the driver elements (32a - 32d) are rotationally fixedly, but axially movably, coupled to a respective guide ring (26a - 26d), with the guide rings (26a - 26d) being rotatable about the axis of rotation (D) of the adjustment rings (22a - 22d),
    with the latch (78) being additionally blocked in its locking position by the guide rings (26a - 26d) as long as the secret code is not set at the adjustment rings (22a - 22d),
    and/or with the latch (78) blocking the guide rings (26a - 26d) in the direction of rotation when the secret code is set at the adjustment rings (22a - 22d) and the latch (78) is displaced into the unlocking position.

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