EP3219884A1 - Key, corresponding lock and system comprising key and locks - 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 '), with at least one scanning position (4) provided along the longitudinal extension of the key (1) on the first surface (2) at least one first coding (3) for interrogation in the lock and / or on the second surface (2 ') at least one second coding (3') is provided for interrogation in the lock, wherein at least one coding ( 3) of the first surface (2) at at least one scanning position (4) differs from the second encoding (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 groups of locks and at least one key according to the invention.

Description

The invention relates to a key for locking a lock having at least a first surface and at least one second surface and at least one provided along the longitudinal extension scanning position, on the first surface at least a first coding for interrogation in the lock and / or on the second surface at least a second coding is provided 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 thus, rotated about its longitudinal axis, respectively 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 one-sided 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 disadvantageous in terms of modern reproduction methods (high-resolution smartphone cameras in combination with 3D printing), as illegal keys can easily be 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. However, it can also be provided that a key which has the same coding on both sides has blocking 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 is designed with at least two or more features on different surfaces of the key itself. 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 coding at the same scanning position on the second surface, so that at least the codings at this scanning position need only be interrogated on one surface of the key in order to lock the lock. There may also be a plurality of encodings at a scanning position, one or more of which is identical on all surfaces of the key, and one or more different on at least one surface 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 cited codes and / or further codings may be substantially rectilinear, angular or curved, horizontally or vertically extending grooves, grooves, millings, indentations or elevations, control surfaces, control paths, depressions, wells with identical or different diameters and / or depths, mounted balls , Circular or elliptical segment recesses, spherical segment-shaped protrusions or depressions, magnetic encodings, electronic encodings and / or combinations of these elements.

According to the invention, it may be provided that the surfaces are key flat sides of a flat key. 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 include any angle, in particular about 90 ° or about 180 °, with the first surface of the key.

According to the invention, it may be provided that the codes are formed by control points provided at certain control levels transversely to the longitudinal extent of the key, the control points preferably being connected to one another by means of control grooves.

According to the invention, at least one control groove with control points and on the second surface also at least one control groove with control points is provided on the first surface, 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 least one scanning position on the first surface has a different control height than 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. According to the invention, provision can be made, in particular, for at least six scanning positions A-F and at least six control heights a-f to be 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 at least three, preferably five, control heights are provided for at least one of the control grooves, preferably for the shallow control grooves.

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 executed identically on at least one scanning position on both surfaces, and are continuously executed differently from a specific 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 having at least two sides, with scanning positions provided along the longitudinal extent of the key channel, wherein at least one control element is provided at each scanning position for interrogating at least one coding on at least one surface of the key, wherein at least one blocking 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 a 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 at a further scanning position on at least two sides of the key channel controls for querying the same coding, in particular for interrogating 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 engagement means, in particular one or more Abfragenuten which cooperate in one or more positions of the control with the blocking 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 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 at least at a certain scanning position at least only the first coding on the first surface, and at least a second lock or a second group of locks interrogates at least only the second coding on the second surface of the key at this scanning position, so that the key blocks the first lock or the first group of locks in a first position, and the second lock or the second lock in a second position second locks group locks.

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

• Fig. 1a - 1d zeigen Querschnitte durch Ausführungsbeispiele herkömmlicher (links) und erfindungsgemäßer (rechts) Schlüssel;
• Fig. 2a - 2c zeigen Querschnitte durch Ausführungsbeispiele herkömmlicher und erfindungsgemäßer Schlüssel-Schloss-Kombinationen;
• Fig. 3a - 3b zeigen ein Ausführungsbeispiel eines erfindungsgemäßen Schlüssels;
• Fig. 4a - 4b zeigen ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Schlüssels;
• Fig. 5a - 5b zeigen ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Schlüssels;
• Fig. 6a - 6b zeigen den Schlüssel aus Fig. 3a - 3b in einer Detailansicht;
• Fig. 7a - 12b zeigen weitere Ausführungsbeispiele erfindungsgemäßer Schlüssel;
• Fig. 13a - 13b zeigen eine schematische Darstellung der Zuhaltungen im Inneren des Zylinderkerns eines erfindungsgemäßen Schlosses;
• Fig. 14 - 15 zeigen weitere schematische Darstellungen der Zuhaltungen im Inneren des Zylinderkerns eines erfindungsgemäßen Schlosses;
• Fig. 16 zeigt eine schematische dreidimensionale Darstellung der Zuhaltungen im Inneren des Zylinderkerns eines erfindungsgemäßen Schlosses.

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

• Fig. 1a - 1d show cross sections through embodiments of conventional (left) and inventive (right) key;
• Fig. 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;
• Fig. 4a - 4b show a further embodiment of a key according to the invention;
• Fig. 5a - 5b show a further embodiment of a key according to the invention;
• Fig. 6a - 6b show the key Fig. 3a - 3b in a detailed view;
• Fig. 7a - 12b show further embodiments of inventive key;
• Fig. 13a - 13b show a schematic representation of the tumblers inside the cylinder core of a lock according to the invention;
• FIGS. 14-15 show further schematic representations of the tumblers inside the cylinder core of a lock according to the invention;
• Fig. 16 shows a schematic three-dimensional representation of the tumblers inside the cylinder core of a lock according to the invention.

Fig. 1a - 1d 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 on the 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 codes 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.

Fig. 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, which cooperate with locking elements 14, 14', 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.

Fig. 2c shows an analogous embodiment Fig. 2b with the difference that at the illustrated scanning position of the key 1, the coding is not executed by a deep groove per surface 2, 2 ', but by two shallow grooves per surface 2, 2'. The control elements 13, 13 'each have two control elements 18, 18' for engagement in the shallow grooves, as well as two query grooves 19, 19 'for engaging the blocking elements 14, 14'. The blocking elements 14, 14 'are thus, as in the embodiment of Fig. 2b , each at 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 Fig. 2b or Fig. 2c can not be locked by a conventional reversible key with identical codes on the surfaces 2, 2 ', but only by keys with different codes.

Fig. 3a - 3b show an embodiment of a key 1 according to the invention, which is designed as a flat key with a crenel 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.

Fig. 4a - 4b show a further embodiment of a key 1 according to the invention, which is designed as a flat key with a crenel 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 '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 at the sampling position A and identical to the sampling positions B-F. In this embodiment, the codings 3, 3 'as wells 21, 21' carried out with different depth and / or diameter.

Fig. 5a - 5b show a further embodiment of a key 1 according to the invention, which is designed as a flat key with a crenel 10 and a key tip 20 and two opposite surfaces 2, 2 '. 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 at the sampling position A and identical to the sampling positions B-F. In this embodiment, the codings 3, 3 'are designed as notches 22, 22' with different depth and / or extension.

Figs. 6a - 6b show the key Fig. 3a - 3b in a detailed view. The key 1 is designed as a flat key with 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 '1 scanning positions 4 are provided along the longitudinal extent of the key, 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 cam grooves 8, 8 'have a greater groove depth than the shallow cam grooves 9, 9'. The shallow control grooves 9, 9 'run essentially parallel to one another.

The control points 6, 6 ', 7, 7' are arranged at the interrogation positions at transversely to the longitudinal extent of the key 1 provided control heights 5. 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. 7a - 9b show further embodiments of inventive key. 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 it must be scanned up to this scanning only on one side of the key, while from this scanning position both sides of the key (as in Fig. 2b shown) must be scanned.

The Figs. 10a-12b show further embodiments of inventive 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 it must be scanned up to this scanning only on one side of the key, while from this scanning position both sides of the key (as in Fig. 2c shown) must be scanned.

Fig. 13a - 13b show a schematic representation of the tumblers in the interior of 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 in the keyway 11 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 the keyway 11 is shown, and there are the scanning positions 12 A - F shown. At each scanning position are on both sides of the key channel 11, two controls 13, 13 ', either first control members 17, 17' for querying the deep grooves on the key, or second control members 18, 18 'for interrogating the shallow grooves. Right and left of the keyway 11, the controls 13, 13 'shown again in a rotated position by 90 °. This embodiment of the lock is for a key as in Fig. 3a - 3b shown executed as the grooves extend over the entire length of the key shank.

In Fig. 14 is an execution of the lock for a key like in Fig. 9a - 9b shown. 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 execution of the lock for a key like in Fig. 12a - 12b shown. 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.

Fig. 16 shows a schematic three-dimensional representation of the tumblers inside the cylinder core of a lock according to the invention, wherein the control elements 13 and 13 'on both sides of the keyway 11 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 in FIG Fig. 2a - 2c was presented.

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 '

encoding

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 lane

10

key grip

11

keyway

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 organ

19, 19 '

Abfragenut

20

key tip

21.21 '

Dimple

22, 22 '

notches

23

core

24

casing

Claims (17)

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 surface (2) for interrogation in the lock and / or on the second surface (2') of at least one first coding (3), d. wherein the codings (3, 3 ') are formed by control points (6, 6', 7, 7 ') arranged transversely to the longitudinal extent of the key (1), arranged at specific control heights (5), and the control points are formed by control grooves (8, 8 ', 9, 9') are interconnected, e. wherein on the first surface (2) at least one control groove (8, 9) with control points (6, 7) and on the second surface (2 ') also at least one control groove (8', 9 ') with control points (6', 7 ') is provided, and the control points of each control groove are provided at each defined scanning position (4), f. wherein at least three control grooves are provided, of which at least one as a low control groove (8, 8 ') with low control points (6, 6'), and the remaining as shallow control grooves (9, 9 ') with shallow control points (7, 7' ), wherein the deep control grooves (8, 8 ') have a greater groove depth than the shallow control grooves (9, 9'), and the shallow control grooves (9, 9 ') are substantially parallel to each other, characterized in that at least one coding (3) of the first surface (2) differs at least one scanning position (4) from the second coding (3 ') at the same scanning position (4) by at least one control point of at least one control groove on at least a 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 '). Key (1) according to claim 1, characterized in that the codings (3, 3 ') are executed at at least one scanning position such that at least the codings at this scanning position on both surfaces (2, 2') are interrogated to lock the lock have to. 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) identical to the coding (3 ') at the same scanning position (4) on the second Surface (2 ') is, so that at least the codings (3, 3') at this scanning position only on a surface (2, 2 ') of the key must be queried to lock the lock. 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 at other locations of the key (1) further codings are provided. Key (1) according to one of claims 1 to 4, characterized in that the codings (3, 3 ') and / or further codings substantially rectilinear, angled or curved, horizontally or vertically extending grooves, grooves, millings, notches (22 , 22 ') or elevations, control surfaces, control paths, depressions, wells (21, 21') with identical or different diameters and / or depths, supported balls, circular or elliptical segment recesses, spherical segment-shaped elevations or depressions, magnetic codes, electronic codes and / or or combinations of these elements. Key (1) according to one of claims 1 to 5, characterized in that the surfaces (2, 2 ') are key flat sides (16, 16'). Key (1) according to one of claims 1 to 5, characterized in that the surfaces (2, 2 ') are key narrow sides (15, 15'). A key (1) according to any one of claims 1 to 5, characterized in that the first surface (2) is a key narrow side (15), and the second surface (2 ') is a key flat side (16'). Key (1) according to one of claims 1 to 8, 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 '). Key (1) according to one of claims 1 to 9, characterized in that at least six scanning positions A - F and at least six control heights a - f are provided. Key (1) according to one of claims 1 to 10, characterized in that at least three, preferably five, control heights are provided for at least one control groove, preferably for the shallow control grooves (9, 9 '). Key according to one of claims 1 to 11 with a key tip (20) and a key bit (10), characterized in that the codings (3, 3 ') starting from the key tip (20) in the direction of the crayon (10) initially on at least a scanning position (4) on both surfaces (2, 2 ') are identical, and are carried out continuously different starting from a certain scanning position. A key according to any one of claims 1 to 12, comprising a key tip (20) and a key bit (10), characterized in that the deep cam groove (8, 8 ') or the shallow cam grooves (9, 9') originate from the key tip (20) in the direction of the crayon (10) extend only to a certain scanning position (4). Lock for key (1) according to one of claims 1 to 13, comprising a. a keyway (11) with at least two sides, b. with at least one scanning position (12) provided along the longitudinal extent 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. the control elements (13, 13 ') comprising first control elements (17, 17') for engaging in deep control grooves (8, 8 ') and second control elements (18, 18') for engaging in shallow control grooves (9, 9 '), e. and at least one blocking element (14, 14 ') is provided which can be brought into the release position for actuation of the lock when the control element (13, 13') is in a corresponding position, characterized in that f. at least at one scanning position (12) on two sides of the key channel (11) control elements (13, 13 ') are provided for interrogating different codes (3, 3') on two surfaces (2, 2 ') of the key, and G. at least at a further scanning position (12) on two sides of the key channel (11) control elements (13, 13 ') for querying the same coding (3, 3'), in particular for interrogating different features of the same coding (3, 3 '), are provided on two surfaces (2, 2 ') of the key. Lock according to claim 14, characterized in that the control elements (13, 13 ') for controlling the blocking elements (14, 14') comprise engagement means, in particular one or more query grooves (19, 19 '), which in one or more positions of the Control element (13, 13 ') with the blocking element (14, 14') cooperate in such a way that it can be brought into the release position for actuating the lock. Lock according to claim 14 or 15, 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 14 to 16 and at least one associated key (1) according to one of Claims 1 to 13, characterized in that a. at least one 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 one second lock or a second group of locks queries at least only the second coding (3 ') on the second face (2') of the key at 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.

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