EP3191663A1 - Key and associated lock - Google Patents

Abstract

The invention relates to a key (1) for locking a lock, comprising at least one first surface (2) and at least one second surface (2'), having at least one scanning position (4) provided along the longitudinal extension of the key (1), on which at least one first coding (3) is provided on the first surface (2) for prompting in the lock and/or at least one second coding (3') is provided on the second surface (2') for prompting in the lock, wherein the at least one coding (3) of the first surface (2) at at least one scanning position (4) differs from the second coding (3') at the same scanning position (4). The invention further relates to a lock for such a key, and a system of at least two locks or lock groups and at least one key according to the invention.

Description

 Key and associated lock

The invention relates to a key for locking a lock with at least one first surface and at least one second surface and at least one provided along the longitudinal extension scanning position, on the on the first surface

at least one first coding is provided for interrogation in the lock and / or on the second surface at least one second coding for interrogation in the lock. The invention further relates to a lock for such a key.

Such keys are known from the prior art with two coded surfaces, in particular as a reversible key. Reversible keys are keys whose shank has identically arranged profiles, guide grooves, trough holes, elevations and / or notches on both sides. The key has to be around his

Rotated longitudinal axis, each having the same features and therefore - regardless of which side of the key points upward - are also introduced rotated in the keyway of the associated lock cylinder, which is not possible with a normal unilaterally notched key.

Since the encodings on reversible keys are identical on both sides, the encodings on each page are usually interrogated alternately in the lock in order to reduce the number of scanning elements. The term "identical codings" in this context means that the codings on the respectively considered surfaces, when the key is rotated about its longitudinal axis, are the same. With reversible keys, however, it is sufficient to image a page in order to be able to reproduce the key. This is in terms of modern

Reproduction methods (high-resolution smartphone cameras in combination with 3D printing) disadvantageous because illegal keys can be easily circulated.

Another problem is that it would be advantageous in practice for two locking systems, each having locking cylinder with reversible keys to realize higher-level keys that lock in both locking systems.

In addition, reversible keys with lateral groove coding have the problem that the individual curves on both sides of the key must be identical. However, this results in restrictions for the design of the grooves on the key tip: The middle position of the guard at the key tip can not be used, otherwise there is an increased risk of breakage.

The object of the invention is to remedy these and other problems, in particular the problem of easy copying of reversible keys. It should also be created a way to lock several different reversible key locking systems with the same key. Furthermore, the described restriction in the lateral Nutencodierung should be resolved.

In addition, the variations on the key should be increased, and it should be ensured a higher locking security. The same effects are to be achieved with regard to the new design of the castle.

These and other objects are achieved according to the invention in that at least one coding of the first surface of the key differs at least one scanning position from the second coding at the same scanning position on the second surface, so that at least the codings at this scanning position at both Surfaces need to be queried. This has the advantage that the codes on both sides of the key are different, making it much more difficult for unauthorized persons to copy the key.

The solution according to the invention makes it possible to lock one or more lock cylinders of a locking system with a key and, if the key is rotated about its longitudinal axis 90 ° to 180 °, to lock one or more lock cylinders of another locking system. It can be provided that a key which has the same coding on both sides has no blocking authorization. But it can also be provided that a key having the same coding on both sides,

Has lock authorization. An advantage of the solution according to the invention is that the feature for authorization to lock a plurality of lock cylinders need not be included in the lock cylinders of the locking systems, but with at least two or more features on different surfaces of the

Key itself is executed. As a result, a key can be designed that has a higher-level function in two different reversible key locking systems, but does not even have the reversing key function. This may be, for example, a parent key for authorized persons, such as fire brigades, night watchmen, home helpers or the like.

Another advantage of the solution according to the invention consists in the execution of the key with curve encodings that now by the different expression of the curves on the two sides of the key and the middle tumbler can be used on the key tip, as they are not on both sides in the form of a Groove must be milled.

According to the invention, it can be provided that at least one coding of the first surface at at least one scanning position is identical to the coding on the same

Scanning position on the second surface, so that at least the coding must be queried at this sampling position only on a surface of the key to lock the lock. There may also be several at one scanning position

Encodings, one or more of which are identical on all faces of the key, and one or more different on at least one face of the key. According to the invention, it can be provided that, in addition to the codings mentioned, further codings are provided on the surfaces and / or at other points of the key. The mentioned codes and / or others

Coding may include substantially straight, angled, or curved, horizontal or vertical grooves, grooves, cuts, indentations or elevations, control surfaces, control tracks, troughs, identical or concave bores

different diameters and / or depths, stored balls, circular or elliptical segment recesses, spherical segment-shaped elevations or depressions, magnetic codes, electronic codes and / or combinations of these elements.

According to the invention, it may be provided that the surfaces are around

Key flat sides of a flat key is. According to the invention, it can likewise be provided that the surfaces are key narrow sides of a flat key. According to the invention, it may further be provided that the first surface is a key narrow side, and the second surface is a key flat side. The second surface may be at any angle with the first surface of the key, in particular about 90 ° or about 180 °,

lock in.

According to the invention, it can be provided that the codings are transversely to the

Longitudinal extension of the key provided, at certain levels of control

arranged control points are formed, wherein the control points are preferably interconnected by control grooves.

According to the invention it can be provided that on the first surface at least one control groove with control points and on the second surface also at least one

Control is provided with control points, wherein the control points of each control groove are provided at a respective defined scanning position, and at least one

Control point of at least one control groove at at least one scanning position on the first surface having a different control height, as the control point of the corresponding control groove at the same scanning position on the second surface. According to the invention, it can be provided that at least one control point of at least one control groove has the same control height on at least one scanning position on the first surface as the control point of the corresponding control groove on the same scanning position on the second surface. In particular, according to the invention

be provided that at least six sensing positions A - F and at least six control heights a - f are provided.

According to the invention it can be provided that at least three control grooves are provided, of which at least one deep control groove with deep control points, and the remaining formed as shallow control grooves with shallow control points, the deep control grooves have a greater groove depth than the shallow control grooves, and the shallow grooves extend substantially parallel to each other.

According to the invention, it can be provided that for at least one of the control grooves, preferably for the shallow control grooves, at least three, preferably five,

Tax levels are provided.

According to the invention, it may be provided that the codings, starting from the key tip in the direction of the key grain, are initially located on at least one of them

Scanning position on both surfaces are identical, and are carried out continuously different from a certain scanning position. It can be provided, in particular, that the deep cam groove or the shallow cam grooves, starting from the key tip in the direction of the key grain, only extend to a certain scanning position, so that up to this scanning position at each scanning position on each surface two shallow and one deep cam groove, and only one shallow or two deep control grooves are provided from this scanning position at each scanning position. The invention further extends to a lock for keys according to the invention, comprising a key channel with at least two sides, along with

At least one control element for interrogating at least one coding on at least one surface of the key is provided at each scanning position, at least one being provided on at least one surface of the key

Locking element is provided which can be brought in the release position for actuating the lock with a corresponding position of the control, and being provided at least at one scanning position on at least two sides of the key channel controls to query different codes on at least two surfaces of the key.

According to the invention, it can be provided that at least one further

Scanning position on at least two sides of the key channel controls for querying the same coding, in particular for querying different features of the same coding, are provided on at least two surfaces of the key. It can be provided, in particular, that the control elements comprise control elements for engaging in codes, in particular for engaging in control grooves on the key.

According to the invention, it may be provided that the control elements comprise first control members for engagement in deep control grooves and second control members for engagement in shallow control grooves. Furthermore, it can be provided that the control elements for controlling the blocking elements engaging means, in particular one or more

Have query grooves, which cooperate in one or more positions of the control with the locking element such that it can be brought into the release position for actuating the lock.

According to the invention, it can be provided that the key is a flat key and / or the lock is a cylinder lock, in particular a cylinder lock for receiving a flat key. The invention further extends to a system of at least two

Locks according to the invention or groups of locks according to the invention and at least one associated key according to the invention, wherein at least a first lock or a first group of locks on at least one particular

Scanning at least only the first coding on the first surface, and at least a second lock or a second group of locks at this sampling position at least only the second coding on the second surface of the key queries, so that the key in a first position, the first lock or the first

Lock group locks, and locks in a second position, the second lock or the second group of locks.

Other features of the invention will become apparent from the description of the

Embodiments, the claims and the drawings.

The invention will be explained in more detail by way of non-limiting embodiments:

Fig. 1 a - 1 d show cross sections through embodiments of conventional (left) and inventive (right) key;

 2a-2c show cross-sections through embodiments of conventional and inventive key-lock combinations;

 Fig. 3a - 3b show an embodiment of a key according to the invention; 4a-4b show a further embodiment of an inventive

key;

 5a-5b show a further embodiment of an inventive

key;

 FIGS. 6a-6b show the key from FIGS. 3a-3b in a detailed view;

FIGS. 7a-12b show further embodiments of keys according to the invention;

13a-13b show a schematic representation of the tumblers in the interior of the cylinder core of a lock according to the invention;

 FIGS. 14-15 show further schematic representations of the tumblers in the interior of the cylinder core of a lock according to the invention;

16 shows a schematic three-dimensional representation of the tumblers in the interior of the cylinder core of a lock according to the invention. 1 a - 1 d show cross sections through embodiments of conventional and inventive key 1 at a certain scanning position, wherein on the left side a cross section through the key shank of a conventional reversible key, and right thereof a cross section through the key shank of a key 1 according to the invention is shown , The keys 1 each have a first surface 2 with first codes 3 and a second surface 2 'with second

Codings 3 '. While the codes 3, 3 'of the conventional keys are designed such that they coincide when the key is rotated by 180 °, this is not the case in the embodiments of the keys 1 according to the invention.

It therefore makes a difference whether the key is inserted in the normal position or in a position rotated by 180 ° into the lock. In the lock must - at least at this scanning position - both surfaces 2, 2 'of the key 1 are queried.

2a-2c show cross-sections through embodiments of conventional and inventive key-lock combinations. Fig. 2a shows a cross section through a conventional lock with a core 23 which is rotatably mounted in a housing 24, in which a conventional key 1 is inserted. On both sides of the key 1 controls 13, 13 'slidably disposed with

Locking elements 14, 14 'cooperate, which engage in housing grooves. The key 1 is a key with lateral groove coding. The lock is carried out in a conventional manner and scans on the side 2, the two shallow grooves with the control members 18, and on the other side 2 ', the deep groove with the control member 17' from. The position of the deep groove on surface 2, and the shallow grooves on page 2 'is not scanned, because - because of the reversible key system - it is assumed that the codes on both surfaces 2, 2' are the same.

Fig. 2b shows a cross section through an embodiment of a key-lock combination according to the invention. In this case, the codes in the form of deep grooves on the surfaces 2, 2 'of the key are different and are also interrogated on both sides of the key independently. In order to be able to interrogate both codings on each surface 2, 2 ', the blocking elements 13, 13' engage on both sides via first control elements 17, 17 'into the deep groove. However, since the deep groove, depending on the rotation of the key 1, is at a different position, the control elements 13, 13 'each have two query grooves 19, 19' for engaging the blocking elements 14, 14 '. The blocking elements 14, 14 'are thus activated in each case at two different positions of the controls 13, 13' and lock the lock. Although the key 1 is not a reversible key - because the encodings on face 2 and 2 'are different - it works as a reversible key because in both positions both faces of the key are queried.

2c shows an analogous embodiment to FIG. 2b with the difference that at the scanning position of the key 1 shown, the coding is not effected by a deep groove per surface 2, 2 ', but by two shallow grooves per surface 2, 2'. is executed. The controls 13, 13 'have two control elements 18, 18' for engaging in the shallow grooves, as well as two query grooves 19, 19 'for engaging the

Locking elements 14, 14 '. The blocking elements 14, 14 'are thus, as in the

Embodiment of Fig. 2b, each with two different positions of the controls 13, 13 'activated and lock the lock, although it is not a reversible key.

In an embodiment not shown, the lock has a further mechanical interrogation logic, in particular the locking elements 14, 14 ', which ensures that the lock of Fig. 2b or Fig. 2c is not by a conventional

Reversible key with identical codes on the surfaces 2, 2 ', but

can only be locked by keys with different encodings.

3a-3b show an embodiment of a key 1 according to the invention, which is designed as a flat key with a key 10 and a key tip 20 and two opposite surfaces 2, 2 '. The surfaces 2, 2 'are the key flat sides 16, 16'. For both surfaces 2, 2 'along the longitudinal extension of the key 1 scanning positions 4 are provided, namely six Abtaspositionen A - F. At each sampling position 4 is located on both surfaces 2, 2' of the key 1, a coding 3, 3 ', wherein the first coding 3 on the surface 2 and the second coding 3 'on the surface 2' is provided. The codings are different at the sampling position A and identical to the sampling positions B-F. A lock, which scans only one side of the key, can thus be operated only in one position of the key. In order to be able to interrogate both codings at the scanning position A, the lock must be designed such that it interrogates both surfaces 2, 2 'of the key 1 independently of one another, at least at the scanning position A.

4a-4b show a further embodiment of an inventive

Key 1, as a flat key with a key 10 and a cereal

Key tip 20 and two opposite surfaces 2, 2 'is executed. The surfaces 2, 2 'are the key flat sides 16, 16'. For both surfaces 2, 2 'are provided along the longitudinal extent of the key 1 scanning positions 4, namely six scanning positions A - F. At each scanning position 4 is located on both surfaces 2, 2' of the key 1, a coding 3, 3 ', wherein the first coding 3 on the surface 2 and the second coding 3 'on the surface 2' is provided.

The codings are different on the sampling position A, and on the

Sampling positions B - F identical. In this embodiment, the codings 3, 3 'as wells 21, 21' with different depths and / or

Diameter executed.

5a-5b show a further embodiment of an inventive

Key 1, as a flat key with a key 10 and a cereal

Key tip 20 and two opposite surfaces 2, 2 'is executed. For both surfaces 2, 2 'are provided along the longitudinal extent of the key 1 scanning positions 4, namely six scanning positions A - F. At each scanning position 4 is located on both surfaces. 2 , 2 'of the key 1, a coding 3, 3', wherein the first coding 3 on the surface 2 and the second coding 3 'on the surface 2' is provided. The codings are different on the sampling position A, and on the

Sampling positions B - F identical. In this embodiment, the codings 3, 3 'are designed as notches 22, 22' with different depth and / or extension. Figs. FIGS. 6a-6b show the key from FIGS. 3a-3b in a detailed view. Of the

Key 1 is a flat key with a key tip 20 and two

opposite surfaces 2, 2 'is executed. The surfaces 2, 2 'are the key flat sides 16, 16'. For both surfaces 2, 2 'are along the

Longitudinal extension of the key 1 sampling positions 4 provided, namely six Abtaspositionen A - F.

At each scanning position 4 is on both surfaces 2, 2 'of the key 1, a coding 3, 3', wherein the first coding 3 on the surface 2 and the second coding 3 'on the surface 2' is provided. The codings are different at the sampling position A and identical to the sampling positions B-F.

The codings 3, 3 'comprise deep control points 6, 6' and shallow control points 7, 7 ', which are connected to each other by a deep control groove 8, 8' and two shallow control grooves 9, 9 '. The deep control grooves 8, 8 'have a larger

Groove depth as the shallow control grooves 9, 9 '. The shallow control grooves 9, 9 'run essentially parallel to one another.

The control points 6, 6 ', 7, 7' are at the interrogation positions on transverse to

Longitudinal extension of the key 1 provided control heights 5 arranged. In this embodiment, six control levels a - f are provided. While the control points 6, 6 ', 7, 7' are identical on the scanning positions B - F on both surfaces 2, 2 'of the key 1, the deep control point 6, 6' on the two surfaces 2, 2 is at the scanning position A 'arranged at a different control height 5.

The Figs. FIGS. 7a-9b show further embodiments of keys according to the invention. In these exemplary embodiments, the deep control groove 8, 8 ', starting from the key tip 20 to the key ridge 10, initially runs identically on a few scanning positions on both surfaces 2, 2' of the key 1. From a certain scanning position, the deep control groove 8, 8 'on the surfaces 2, 2' executed differently.

The shallow control grooves 9, 9 'extend, starting from the key tip 20, only up to this specific scanning position. This ensures that up to this sampling position only on one side of the

Key must be scanned, while from this scanning position both sides of the key (as shown in Fig. 2b) must be scanned.

The Figs. FIGS. 10a-12b show further exemplary embodiments according to the invention

Key. In these exemplary embodiments, the shallow control grooves 9, 9 ', starting from the key tip 20 to the key collar 10, initially run identically on a few scanning positions on both surfaces 2, 2' of the key 1.

From a certain scanning position, the shallow control grooves 9, 9 'are designed differently on the surfaces 2, 2'. The deep control groove 8, 8 'extends, starting from the key tip 20, only up to this particular scanning position. This ensures that must be scanned to this sampling only on one side of the key, while from this scanning position both sides of the key (as shown in Fig. 2c) must be scanned.

13a-13b show a schematic representation of the tumblers inside the cylinder core of a lock according to the invention, wherein the key and

Cylinder core and housing for reasons of clarity were not shown. Fig. 13a shows a view into the keyway 1 1 and shows the

Controls 13, 13 'which interrogate the key channel with control members 15, 17', 18, 18 '. Laterally, the controls 13, 13 'on query grooves 19, 19', which cooperate with locking elements 14, 14 '. In Fig. 13b is a plan view of

Key channel 1 1, and there are the scanning positions 12 A - F shown. At each scanning position are on both sides of the key channel 1 1 two

Control elements 13, 13 ', which either have first control elements 17, 17' for scanning the deep grooves on the key, or second control elements 18, 18 'for interrogating the shallow grooves. Right and left of the key channel 1 1, the controls 13, 13 'shown again in a rotated position by 90 °. This embodiment of the lock is designed for a key as shown in Fig. 3a - 3b, since the grooves extend over the entire length of the key shank. In Fig. 14 is an embodiment of the lock for a key as shown in Fig. 9a - 9b. At the scanning positions A, B and C, the deep and shallow grooves of the key are alternately scanned. At the scanning positions D, E and F, the deep groove is only scanned on both sides.

In Fig. 15 is an embodiment of the lock for a key as shown in Fig. 12a - 12b. At the scanning positions A, B and C, the deep and shallow grooves of the key are alternately scanned. At the scanning positions D, E and F, the shallow grooves are only scanned on both sides.

16 shows a schematic three-dimensional representation of the tumblers in the interior of the cylinder core of a lock according to the invention, wherein the

Controls 13 and 13 'on both sides of the key channel 1 1 are shown. In the extracted detail, the first control members 17 'for scanning the deep groove, and the second control members 18 for scanning the shallow grooves are shown. The control elements 17, 17 ', 18, 18' are substantially cylindrical elevations.

Also visible are the interrogation grooves 19, 19 'in the form of incisions of substantially rectangular cross-section, which serve to cooperate with the blocking element 14, 14', as shown in FIGS. 2a-2c.

The invention is not limited to the illustrated embodiments, but includes all embodiments within the scope of the following

Claims.

LIST OF REFERENCE NUMBERS

1 key

 2 First surface

 2 'Second surface

 3, 3 'coding

 4 scanning position of the key

5 tax amount

 6, 6 'depth control unit

 7, 7 'Shallow control unit

 8, 8 'deep rudder groove

 9, 9 'shallow control groove

 10 key chalks

 1 1 key channel

 12 scanning position of the lock

13, 13 'control

 14, 14 'blocking element

 15, 15 'key narrow side

16, 16 'key flat side

 17, 17 'First control organ

 18, 18 'Second control

 19, 19 'query well

 20 key tip

 21, 2V wells

 22, 22 'notches

 23 core

 24 housing

Claims

claims: 1 . Key (1) for locking a lock, comprising  a. at least one first surface (2) and at least one second surface (2 '), b. with at least one scanning position (4) provided along the longitudinal extent of the key (1),  c. at least one second coding (3 ') for interrogation in the lock is provided on the first face (2), at least one first coding (3) for interrogation in the lock and / or on the second face (2'), characterized in that at least one coding (3) of the first surface (2) at at least one scanning position (4) differs from the second coding (3 ') at the same scanning position (4). 2. Key (1) according to claim 1, characterized in that the  Codings (3, 3 ') are executed on at least one scanning position such that at least the codings at this scanning position on both surfaces (2, 2') must be interrogated to lock the lock. 3. Key (1) according to claim 1 or 2, characterized in that  at least one coding (3) of the first surface (2) at at least one scanning position (4) is identical to the coding (3 ') at the same scanning position (4) on the second surface (2'), so that at least the locking mechanism is locked Codings (3, 3 ') at this scanning position only on a surface (2, 2') of the key must be queried. 4. Key according to one of claims 1 to 3, characterized in that in addition to the codings (3, 3 ') on the surfaces (2, 2') and / or other locations of the key (1) further codes are provided. 5. key (1) according to one of claims 1 to 4, characterized in that the codings (3, 3 ') and / or other codings substantially rectilinear, angled or curved, horizontally or vertically extending grooves, grooves, millings, notches (22, 22 ') or surveys,  Control surfaces, control tracks, wells, wells (21, 21 ') with identical or different diameters and / or depths, stored balls, circular or Ellipsensegmentausnehmungen, spherical segment-shaped  Elevations or depressions, magnetic codes, electronic  Encodings and / or combinations of these elements. 6. key (1) according to one of claims 1 to 5, characterized in that it is at the surfaces (2, 2 ') to key flat sides (16, 16'). 7. key (1) according to one of claims 1 to 5, characterized in that it is at the surfaces (2, 2 ') to key narrow sides (15, 15'). 8. key (1) according to one of claims 1 to 5, characterized in that it is at the first surface (2) around a key narrow side (15), and at the second surface (2 ') around a key flat side (16') is. 9. key (1) according to one of claims 1 to 8, characterized in that the codings (3, 3 ') by transversely to the longitudinal extent of the key (1) provided at certain control levels (5) arranged control points (6, 6' , 7, 7 ') are formed, wherein the control points preferably by Control grooves (8, 8 ', 9, 9') are interconnected. 10. key (1) according to claim 9, characterized in that a. at least one control groove (8, 9) with control points (6, 7) on the first surface (2) and also at least one control groove (8 ', 9') with control points (6 ', 7') on the second surface (2 '). ) is provided,  b. wherein the control points each control groove defined at each  Scanning position (4) are provided, and  c. at least one control point of at least one control groove at at least one scanning position on the first surface (2) has a different control height than the control point of the corresponding control groove at the same scanning position on the second surface (2 '). 1 1. Key (1) according to claim 10, characterized in that at least one control point of at least one control groove on at least one  Scanning position on the first surface (2) has the same control height as the control point of the corresponding control groove at the same scanning position on the second surface (2 '). 12. key (1) according to claim 10 or 1 1, characterized in that  at least six scanning positions A - F and at least six control heights a - f are provided. 13. key (1) according to any one of claims 10 to 12, characterized in that at least three control grooves are provided, of which at least one as a low control groove (8, 8 ') with deep control points (6, 6'), and the remaining are formed as shallow control grooves (9, 9 ') with shallow control points (7, 7'),  a. the deep control grooves (8, 8 ') having a greater groove depth than the shallow control grooves (9, 9'), b. and the shallow control grooves (9, 9 ') extend substantially parallel to each other. 14. key (1) according to any one of claims 10 to 13, characterized in that for at least one control groove, preferably for the shallow  Control grooves (9, 9 '), at least three, preferably five, control heights are provided. 15. Key according to one of claims 1 to 14 with a key tip (20) and a key crayon (10), characterized in that the  Codings (3, 3 '), starting from the key tip (20) in the direction of the crayon (10) are first executed identically on at least one scanning position (4) on both surfaces (2, 2'), and continuously executed differently from a certain scanning position are. 16. Key according to one of claims 13 to 15 with a key tip (20) and a key chalk (10), characterized in that the deep control groove (8, 8 ') or the shallow control grooves (9, 9'), starting from the key tip (20) in the direction of the crayon (10) only to a certain scanning position (4) extend. 17. Lock for key (1) according to one of claims 1 to 16, comprising a. a key channel (1 1) with at least two sides,  b. with at least one scanning position (12) provided along the longitudinal extension of the keyway (11),  c. wherein at least one control element (13, 13 ') is provided at each scanning position (12) for interrogating at least one coding (3, 3') on at least one surface (2, 2 ') of the key (1),  d. wherein at least one blocking element (14, 14 ') is provided, the at  corresponding position of the control element (13, 13 ') can be brought into the release position for actuating the lock, characterized in that on at least one scanning position (12) on two sides of the key channel (1 1) controls (13, 13 ') for querying different codes (3, 3') on two surfaces (2, 2 ') of the key are provided , 18. Lock according to claim 17, characterized in that at least at a further scanning position (12) on two sides of the key channel (1 1) controls (13, 13 ') to query the same coding (3, 3'), in particular for query different characteristics of the same  Coding (3, 3 '), on two surfaces (2, 2') of the key are provided. 19. Lock according to claim 18, characterized in that the  Control elements (13, 13 ') control elements (17, 17', 18, 18 ') for engaging in codings (3, 3'), in particular for engaging in control grooves (8, 8 ', 9, 9') on the key (1 ). 20. Lock according to claim 19, characterized in that the  Control elements (13, 13 ') first control members (17, 17') for engagement in deep cam grooves (8, 8 ') and second control members (18, 18') for engaging in shallow cam grooves (9, 9 '). 21. Lock according to one of claims 17 to 20, characterized in that the control elements (13, 13 ') for controlling the blocking elements (14, 14') engaging means, in particular one or more Abfragenuten (19, 19 '), in one or in several positions of the control element (13, 13 ') with the locking element (14, 14') cooperate in such a way that it can be brought into the release position for actuating the lock. 22. Lock according to one of claims 17 to 21, characterized in that it is a cylinder lock, in particular a cylinder lock for receiving a flat key is. System of at least two locks or groups of locks according to one of Claims 17 to 22 and at least one associated key (1) according to one of Claims 1 to 16, characterized in that a. at least a first lock or a first group of locks  at least one specific scanning position at least only the first coding (3) on the first surface (2), and b. at least a second lock or a second group of locks  querying at least only the second coding (3 ') on the second face (2') of the key for this scanning position, c. so that the key (1) locks the first lock or the first group of locks in a first position, and locks the second lock or the second group of locks in a second position.