EP3426865B1 - Key and corresponding lock - Google Patents

Description

The invention relates to a key for locking a cylinder lock with at least one first surface and at least one second surface and scanning positions provided along the longitudinal extent, with at least one coding being provided on the first surface and at least one further coding being provided on the second surface, and with the codings control points provided at the scanning positions transverse to the longitudinal extent of the key and arranged at specific control heights. The invention also relates to a cylinder lock for such a key and a system made up of such a cylinder lock and such a key.

Keys with two coded surfaces, which are designed as reversible keys, are known from the prior art. Reversible keys are keys whose shank has profiles, guide grooves, recessed bores, elevations and/or notches arranged in the same way on both sides. A reversible key has the same features when rotated around its longitudinal axis and can therefore - regardless of which side of the key points upwards - be inserted rotated into the keyway of the associated lock cylinder, which is not possible with a normal key notched on one side.

Since the codes on reversible keys are identical on both sides, the codes on each side are usually queried alternately in the lock in order to reduce the number of scanning elements. In this context, the term "identical coding" means that the coding on the surfaces under consideration is the same when the key is rotated about its longitudinal axis.

With reversible keys of this type, however, it is sufficient to depict one side in order to be able to reproduce the key. This is disadvantageous with regard to modern reproduction methods (high-resolution smartphone cameras in combination with 3D printing), as illegal keys can easily be circulated.

In addition, with reversible keys with laterally arranged control points, the problem arises that the control points on both sides of the key must be identical in the sense of the above definition. However, this results in restrictions for the design of the control points at the tip of the key: The central position of the tumbler at the tip of the key cannot be used, as otherwise there is an increased risk of breakage. This problem is particularly evident in the prior art locking systems in the patents EP 1 712 714 A1 and EP 0 613 987 A1 are described.

An object of the invention is to eliminate these and other problems of generic keys and locks. In particular, a new key and a new lock are to be implemented that offer sufficient possible combinations and are difficult to copy. In particular, the problem of copying reversible keys is to be solved by the invention. Furthermore, a possibility should be created to be able to block several different reversible key locking systems with the same key. Furthermore, the restriction described above with regard to the coding on the side of the key tip should be eliminated. In addition, the possible variations on the key are to be increased and greater blocking security is to be ensured. The same effects should also be achieved with regard to the new design of the castle. Furthermore, the problem is to be solved that existing keys can block new locking systems if both surfaces of the key are not queried in these new locking systems.

According to the invention, these and other objects are achieved by a key having the features of claim 1 . The number of possible combinations of the key is increased by the fact that, according to the invention, at least one control point on both surfaces has a different dimension, preferably a larger diameter, at at least one scanning position than a control point at another scanning position.

There is also the advantage that the new locks designed for this key cannot be actuated by previous reversible keys which are not designed to query the control point with changed dimensions.

This also applies when the locks manufactured for the new key do not query all scanning positions on both sides of the key, but only query every second scanning position alternately on each side as before. Since the control points have different dimensions on both sides at one of the scanning positions, preferably a larger diameter, it is impossible for existing locks to be operated with this key.

According to the invention it can be provided in particular that at least one scanning position on the key the codings of the two surfaces are different from a locking point of view, and at least one scanning position the codings of the two surfaces are identical from a locking point of view.

This embodiment of the invention solves several problems. First of all, there is the advantage that it is much more difficult for unauthorized persons to copy the key, since the coding on the two surfaces of the key is different.

In addition, the solution according to the invention makes it possible to use a key to lock one or more locking cylinders in a locking system and, when the key is rotated about its longitudinal axis by 90° to 180°, to lock one or more locking cylinders in another locking system.

It can be provided that a key that has the same coding on both sides does not have 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 the authorization to lock multiple lock cylinders does not have to be included in the lock cylinders of the locking systems, but is implemented with at least two or more features on different surfaces of the key itself. As a result, a key can be designed which has a superior function in two different reversible key locking systems but does not have the reversible key function itself.

This can, for example, be a higher-level key for authorized persons, such as the fire brigade, night watchman, home help or the like.

Another advantage of the solution according to the invention is that when the key is designed with curve coding, the different characteristics of the curves on the two sides of the key mean that the middle tumbler on the tip of the key can now also be used, since it is not on both sides in the form of a groove must be milled out.

There can also be multiple codes at a scanning position, one or more of which is identical on all surfaces of the key and one or more of which is designed differently on at least one surface of the key.

According to the invention it can be provided that further codes are provided on the two surfaces of the key and/or at other points of the key.

According to the invention, it can be provided that the control points and/or other codings at other points of the key have essentially straight, angled, circular or curved, horizontal or vertical grooves, grooves, millings, indentations or elevations, control surfaces, control tracks, troughs, drilling troughs with identical or different diameters and/or depths, mounted balls, circular or elliptical segment recesses, elevations or depressions in the shape of spherical segments, magnetic coding, electronic coding and/or combinations of these elements.

According to the invention, it can be provided that the surfaces are the flat sides of the key. According to the invention, it can also be provided that the surfaces are the narrow sides of the key. According to the invention it can be provided that the first surface is a narrow side of the key and the second surface is a flat side of the key. The second surface can enclose any desired angle, in particular approximately 90° or approximately 180°, with the first surface of the key.

According to the invention, the control points are connected to one another by control grooves.

According to the invention, at least six scanning positions A-F can be provided in the longitudinal direction of the key and at least six control heights a-f have been provided in the transverse direction of the key.

According to the invention, at least three control grooves are provided, of which at least one is designed as a deep control groove with deep control points and the remaining as shallow control grooves with shallow control points, the deep control grooves having a greater groove depth than the shallow control grooves and the shallow Control grooves essentially parallel to each other.

According to the invention, at least three, preferably five, control heights can be provided for at least one control groove, preferably for the shallow control grooves.

According to the invention, it can be provided that the codings, starting from a key tip of the key in the direction of a key bow of the key, are initially identical on both surfaces and are different from a certain scanning position, preferably continuously different.

According to the invention it can be provided that, starting from the tip of the key in the direction of the bow of the key, the deep control groove or the shallow control grooves extend only up to a certain scanning position and the other control grooves extend beyond that.

According to the invention, it can be provided that that control point with a different dimension is arranged at the first scanning position, starting from the tip of the key in the direction of the bow of the key.

According to the invention, the control point with a different dimension has a larger diameter than the control points at the other scanning positions.

According to the invention, the control point with a different dimension is part of the deep control grooves.

In particular, the control point with a different dimension can have a diameter that is about 10% to about 40% larger than the diameter of the other control points.

According to the invention it is further provided that the deep control grooves are arranged between the shallow control grooves on the key tip and merge into them, so that no separating web of material remains between the deep control grooves and the shallow control grooves on the key tip. This simplifies the insertion of the lock's control elements into the corresponding control grooves of the key: the lock's control elements are inserted into the corresponding control grooves of the key from a shallower wider groove into two shallow control grooves and from a narrower deeper groove to a narrowing deep groove between the distributed between the two shallow grooves.

According to the invention, two grooves of different depth and width can be provided on the key tip, which are designed to distribute three different control elements of the cylinder lock to two shallow and one deep control groove, the deep control groove being tapered from the key tip in the direction of the key bow . According to the invention, a preferably funnel-shaped inlet area can thus be formed at the key tip.

According to the invention it can be provided that the deep control groove, starting from the tip of the key to the control point, is designed with a larger diameter as a deep control groove with a larger diameter. The diameter of the deep control groove can essentially correspond to the diameter of the control point with a larger diameter.

The invention also extends to a cylinder lock for a key according to the invention, comprising a key channel with at least two sides with scanning positions provided along the longitudinal extent, at least one control element with control elements for engaging in at least one coding on at least one surface of the key being provided at each scanning position , wherein at least one blocking element is provided, which can be brought into the release position for actuating the lock when the control element is in the appropriate position.

According to the invention, it is provided in this cylinder lock that the control elements have a different dimension, namely a greater width, at at least one scanning position than at the other scanning positions. This results in the technical effect that the keys described above, which have a control point with different dimensions, can be queried. These control members with different dimensions can preferably be arranged on only one side of the key channel.

According to the invention, it can be provided that at least at a first scanning position on two sides of the key channel, control elements for querying different codings on two surfaces of the key are provided, and at least at a second scanning position on two sides of the key channel control elements for querying identical coding on two surfaces of the key are provided.

According to the invention it is provided that the control elements include first control elements for engaging in deep control grooves and second control elements for engaging in shallow control grooves.

According to the invention, it can be provided that the control elements for controlling the blocking elements have engagement means, in particular one or more interrogation grooves, which interact with the blocking element in one or more positions of the control element such that it can be brought into the release position for actuating the lock.

According to the invention, those control elements with different dimensions are arranged at the last scanning position, starting from a core head of the cylinder lock, and are designed for scanning control points with a larger diameter, the control points with a larger diameter each being part of a deep control groove with a larger diameter, which extends into the deep Pass control grooves. As a result, the control elements with different dimensions correspond to the control points with different dimensions of a key according to the invention.

The invention also 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, with at least one first lock or a first group of locks at least only the first coding on the first surface at at least one specific scanning position, and at least a second lock or a second group of locks at least only the second code on the second surface of the key queries at this scanning position, so that the key 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 .

Further features according to the invention result from the description of the exemplary embodiments, the patent claims and the drawings.

The invention is explained in more detail below using non-limiting exemplary embodiments: Figures 1a - 1b show an embodiment of a key 1 according to the invention, which is designed as a flat key with a key bow 10 and a key tip 20 and two opposite surfaces 2, 2 '. Fig. 1a shows a view of the first surface 2, Fig. 1b shows a view of the second surface 2'. The surfaces 2, 2' are the flat sides of the key. For both surfaces 2, 2 '1 scanning positions 4 are provided along the length of the key, namely six scanning positions AF first coding 3 is provided on surface 2 and the second coding 3' is provided on surface 2'. The codes 3, 3 'comprise control points 6, 6', which are arranged at certain control heights and via control grooves 8, 8' are connected to one another.

The control points are different on scanning position A and identical on scanning positions B - F. A lock that scans only one side of the key can therefore only be actuated in one position of the key. In order to be able to query both codes at the scanning position A, the lock must be designed in such a way that it queries both surfaces 2, 2' of the key 1 independently of one another at least at the scanning position A.

The control point 25, 25' at the scanning position F at the tip of the key has a larger diameter than the control points at the other scanning positions of the key. Starting from the control point 25, 25' to the key tip 20, the deep control groove 8, 8' is designed as a deep control groove with a larger diameter 26, 26'.

Figures 2a - 2b show a further exemplary embodiment of a key 1 according to the invention, which is designed as a flat key with a key bow 10 and a key tip 20 and two opposite surfaces 2, 2'. The surfaces 2, 2' are in turn the key flat sides 16, 16'.

For both surfaces 2, 2 '1 scanning positions 4 are provided along the length of the key, namely six scanning positions AF first coding 3 is provided on surface 2 and the second coding 3' is provided on surface 2'.

The codings are different on scanning position A and identical on scanning positions BF.

The codes 3, 3' include deep control points 6, 6' and shallow control points 7, 7', which are connected to one another by a deep control groove 8, 8' and two shallow control grooves 9, 9'. The deep control grooves 8, 8' have a greater groove depth than 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 arranged at the interrogation positions at control heights 5 provided transversely to the longitudinal extent of the key 1 . In this embodiment, six control heights a - f are provided.

While the control points 6, 6', 7, 7' are identical at the scanning positions B - F on both surfaces 2, 2' of the key 1, at the scanning position A the deep control point 6, 6' is on the two surfaces 2, 2 'At a different control height 5 arranged.

Again, a control point 25, 25' at sensing position F at the tip of the key has a larger diameter than the control points at the other sensing positions of the key. Starting from the control point 25, 25' to the key tip 20, the deep control groove 8, 8' is in turn designed as a deep control groove with a larger diameter 26, 26'.

In this exemplary embodiment, the deep control grooves are arranged on the key tip 20 between the shallow control grooves and merge into them, so that no separating web of material remains on the key tip 20 between the deep control grooves with a larger diameter 25, 25' and the shallow control grooves 9, 9' . The inlet area 28 is in Figure 2c shown schematically, which shows a section along the line CC: The funnel-shaped inlet area 28 on the key tip 20 tapers in the direction of the central axis of the key and thus has a funnel shape. This facilitates the correct threading of the lock control elements into the corresponding control grooves of the key.

Figures 3a - 3f 12 show a detailed representation of various embodiments of the widened control point 25 as well as the deep control groove 8 and the control groove with a larger diameter 26 at the scanning position F at the tip of the key. As can be seen from the illustration, the widened control point 25 has outer radii which correspond to half the diameter B of the deep control groove 8 . The illustration also shows that the diameter A of the control groove with the larger diameter 26 is about 10% to 40% larger than the diameter B of the deep control groove 8. At the point shown, the widened control points 25 have a diameter that is approximately corresponds to the diameter A of the control groove with a larger diameter 26 .

Figures 4a - 4c show cross sections through exemplary embodiments of key-lock combinations according to the invention. Figure 4a shows a cross section through a cylinder lock with a core 23 which is rotatably mounted in a housing 24.

A key 1 is inserted in the key channel. On both sides of the key channel, control elements 13, 13' are displaceably arranged at the scanning position shown, which interact with blocking elements 14, 14', which engage in housing grooves. The cylinder lock scans the two shallow grooves with the control elements 18 on one side of the key 1, and the deep groove with the control element 17' on the other side of the key 1. The position of the deep groove on surface 2 and the shallow grooves on side 2' is not scanned since--because of the reversible key system--it is assumed that the codes on both surfaces 2, 2' are the same.

Figure 4b shows a cross-section through the embodiment at a different scanning position. In this case, the codes in the form of deep grooves on the surfaces 2, 2' of the key are different and are also queried independently on both sides of the key. In order to be able to interrogate both codes on each surface 2, 2', the blocking elements 13, 13' engage in the deep groove on both sides via first control elements 17, 17'. However, since the deep groove is in a different position depending on how the key 1 is turned, 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 in two different positions of the control elements 13, 13' and block the lock. Although the key 1 is not a reversible key - because the codes on surface 2 and 2' are different - it works as a reversible key, since both surfaces of the key are queried in both positions.

Figure 4c shows an analogous embodiment Figure 4b with the difference that at the scanning position of the key 1 shown, the coding is not implemented by one deep groove per surface 2, 2', but rather by two shallow grooves per surface 2, 2'. The control elements 13, 13' each have two control elements 18, 18' for engaging in the shallow grooves, and two query grooves 19, 19' each for engaging the blocking elements 14, 14'.

The locking elements 14, 14 'are so, as in the embodiment of Figure 4b , activated in each case in two different positions of the control elements 13, 13' and lock the lock, although it is not a reversible key.

In an exemplary embodiment that is not shown, the lock has a further mechanical query logic, in particular of the blocking elements 14, 14', which ensures that the lock is off 2b or 2c not by a conventional reversible key with identical codes on the surfaces 2, 2 ', but can only be blocked by keys with different codes.

Figures 5a - 5b show a schematic representation of the tumblers inside the cylinder core of a lock according to the invention, with the key and cylinder core and housing in Figure 5a not shown for reasons of clarity. Figure 5a shows a view of the key channel 11 and shows the control elements 13, 13', which interrogate the key channel with control elements 17, 17', 18, 18'. On the side, the control elements 13, 13' have interrogation grooves 19, 19' which interact with blocking elements 14, 14'.

In Figure 5b 1 is a plan view of the keyway 11 and the scanning positions A - F are shown. At each scanning position there are two control elements 13, 13' on both sides of the key channel 11, the first control elements 17, 17' for querying the deep grooves on the key, second control elements 18, 18' for querying the shallow grooves on the key, or control elements with a larger diameter 27, 27'. To the right and left of the key channel 11, the control elements 13, 13' are shown again in a position rotated by 90°. This exemplary embodiment of the lock is designed for a key as shown schematically, with the deep control groove 8, 8' extending over the entire length of the key shank and the shallow control grooves 9, 9' only being provided on the scanning positions B-F.

In addition to the control elements 17, 17' for querying the deep control grooves and the control elements 18, 18' for querying the shallow control grooves, a control element with a larger diameter 27 for querying the control points with a larger diameter 25 at the scanning position F is provided on one side of the key channel 11 .

At the scanning position F, the control element 27 for querying the deep control groove therefore has a larger diameter than the control elements at the other scanning positions.

An embodiment of the key, according to which the coding of the two surfaces of the key are different at at least one scanning position in terms of locking technology, allows combined features to be taken into account at least at this scanning position when designing the coding. To illustrate this advantage of the invention shows Figure 6a a schematic view of a key channel 11 with left and right of the key channel 11 arranged and located in the release position control elements 13, 13 'with control members 17, 17'. At the scanning position shown, the codings of the two surfaces of the key are identical, so that both the left-hand control element 13 and the right-hand control element 13' must be at the same control height, in this specific example at the control height a.

Figures 6b - 6g show possibilities of combined features at those scanning positions at which the coding of the two surfaces of the key are different in terms of locking technology. In these figures, the right control element 13' is always at the control level a, while the control level of the left control element 13 varies, from control level b in Figure 6b up to tax level g in 6g .

With a corresponding number of control heights, this results in a large number of combined features that allow additional variations of the key coding compared to conventional reversible keys.

If, for example, only two control heights a, b are provided on each side of the key channel, and the coding of the two surfaces of the key can be different in terms of locking technology, there is another way of arranging the control elements compared to the reversible key, namely that arrangement in which the left-hand control element 13 is in the release position at control height a and the right-hand control element 13' is in the release position at control height b. This arrangement would not be possible with a conventional reversible key.

If three control levels a, b, c are provided on each side of the key channel, there are already three additional options for arranging the controls. These possible combinations can be systematically described as follows, with S1 describing the left control element 13, S2 the right control element 13', and the number after the slash describes the control level.

One tax rate each: No additional combination feature.

Two control levels each: S1/1 +S2/2 gives an additional characteristic (left control element at control level a, right control element at control level b).

• S1/1+S2/2 (linkes Steuerelement auf Steuerhöhe a, rechtes Steuerelement auf Steuerhöhe b),
• S1/2+S2/3 (linkes Steuerelement auf Steuerhöhe b, rechtes Steuerelement auf Steuerhöhe c),
• S1/1+S2/3 (linkes Steuerelement auf Steuerhöhe a, rechtes Steuerelement auf Steuerhöhe c).

Three tax levels each:

• S1/1+S2/2 (left control at helm a, right control at helm b),
• S1/2+S2/3 (left control at control level b, right control at control level c),
• S1/1+S2/3 (left control at helm a, right control at helm c).

This results in a total of three additional features.

• S1/1+S2/2 S1/2+S2/3 S1/3+S2/4
• S1/1+S2/3 S1/2+S2/4
• S1/1+S2/4

Four tax levels each:

• S1/1+S2/2 S1/2+S2/3 S1/3+S2/4
• S1/1+S2/3 S1/2+S2/4
• S1/1+S2/4

Adds a total of six additional features.

• S1/1+S2/2 S1/2+S2/3 S1/3+S2/4 S1/4+S2/5
• S1/1+S2/3 S1/2+S2/4 S1/3+S2/5
• S1/1+S2/4S1/2+S2/5
• S1/1+S2/5

Five tax levels each:

• S1/1+S2/2 S1/2+S2/3 S1/3+S2/4 S1/4+S2/5
• S1/1+S2/3 S1/2+S2/4 S1/3+S2/5
• S1/1+S2/4S1/2+S2/5
• S1/1+S2/5

Adds up to ten additional features.

• S1/1+S2/2 S1/2+S2/3 S1/3+S2/4 S1/4+S2/5 S1/5+S2/6
• S1/1+S2/3 S1/2+S2/4 S1/3+S2/5 S1/4+S2/6
• S1/1+S2/4 S1/2+S2/5 S1/3+S2/6
• S1/1+S2/5 S1/2+S2/6
• S1/1+S2/6

Six tax levels each:

• S1/1+S2/2 S1/2+S2/3 S1/3+S2/4 S1/4+S2/5 S1/5+S2/6
• S1/1+S2/3 S1/2+S2/4 S1/3+S2/5 S1/4+S2/6
• S1/1+S2/4 S1/2+S2/5 S1/3+S2/6
• S1/1+S2/5 S1/2+S2/6
• S1/1+S2/6

Adds fifteen additional traits.

• S1/1+S2/2 S1/2+S2/3 S1/3+S2/4 S1/4+S2/5 S1/5+S2/6 S1/6+S2/7
• S1/1+S2/3 S1/2+S2/4 S1/3+S2/5 S1/4+S2/6 S1/5+S2/7
• S1/1+S2/4 S1/2+S2/5 S1/3+S2/6 S1/4+S2/7
• S1/1+S2/5 S1/2+S2/6 S1/3+S2/7
• S1/1+S2/6 S1/2+S2/7
• S1/1+S2/7

Seven tax levels each:

• S1/1+S2/2 S1/2+S2/3 S1/3+S2/4 S1/4+S2/5 S1/5+S2/6 S1/6+S2/7
• S1/1+S2/3 S1/2+S2/4 S1/3+S2/5 S1/4+S2/6 S1/5+S2/7
• S1/1+S2/4 S1/2+S2/5 S1/3+S2/6 S1/4+S2/7
• S1/1+S2/5 S1/2+S2/6 S1/3+S2/7
• S1/1+S2/6 S1/2+S2/7
• S1/1+S2/7

Adds 21 additional traits in total.

• S1/1+S2/2 S1/2+S2/3 S1/3+S2/4 S1/4+S2/5 S1/5+S2/6 S1/6+S2/7 S1/7+S2/8
• S1/1+S2/3 S1/2+S2/4 S1/3+S2/5 S1/4+S2/6 S1/5+S2/7 S1/6+S2/8
• S1/1+S2/4 S1/2+S2/5 S1/3+S2/6 S1/4+S2/7 S1/5+S2/8
• S1/1+S2/5 S1/2+S2/6 S1/3+S2/7 S1/4+S2/8
• S1/1+S2/6 S1/2+S2/7 S1/3+S2/8
• S1/1+S2/7 S1/2+S2/8
• S1/1+S2/8

Eight tax levels each:

• S1/1+S2/2 S1/2+S2/3 S1/3+S2/4 S1/4+S2/5 S1/5+S2/6 S1/6+S2/7 S1/7+S2/8
• S1/1+S2/3 S1/2+S2/4 S1/3+S2/5 S1/4+S2/6 S1/5+S2/7 S1/6+S2/8
• S1/1+S2/4 S1/2+S2/5 S1/3+S2/6 S1/4+S2/7 S1/5+S2/8
• S1/1+S2/5 S1/2+S2/6 S1/3+S2/7 S1/4+S2/8
• S1/1+S2/6 S1/2+S2/7 S1/3+S2/8
• S1/1+S2/7 S1/2+S2/8
• S1/1+S2/8

Adds 28 additional traits in total.

• S1/1+S2/2 S1/2+S2/3 S1/3+S2/4 S1/4+S2/5 S1/5+S2/6 S1/6+S2/7 S1/7+S2/8
• S1/8+S2/9
• S1/1+S2/3 S1/2+S2/4 S1/3+S2/5 S1/4+S2/6 S1/5+S2/7 S1/6+S2/8 S1/7+S2/9
• S1/1+S2/4 S1/2+S2/5 S1/3+S2/6 S1/4+S2/7 S1/5+S2/8 S1/6+S2/9
• S1/1+S2/5 S1/2+S2/6 S1/3+S2/7 S1/4+S2/8 S1/5+S2/9
• S1/1+S2/6 S1/2+S2/7 S1/3+S2/8 S1/4+S2/9
• S1/1+S2/7 S1/2+S2/8 S1/3+S2/9
• S1/1+S2/8 S1/2+S2/9
• S1/1+S2/9

Nine tax levels each:

• S1/1+S2/2 S1/2+S2/3 S1/3+S2/4 S1/4+S2/5 S1/5+S2/6 S1/6+S2/7 S1/7+S2/8
• S1/8+S2/9
• S1/1+S2/3 S1/2+S2/4 S1/3+S2/5 S1/4+S2/6 S1/5+S2/7 S1/6+S2/8 S1/7+S2/9
• S1/1+S2/4 S1/2+S2/5 S1/3+S2/6 S1/4+S2/7 S1/5+S2/8 S1/6+S2/9
• S1/1+S2/5 S1/2+S2/6 S1/3+S2/7 S1/4+S2/8 S1/5+S2/9
• S1/1+S2/6 S1/2+S2/7 S1/3+S2/8 S1/4+S2/9
• S1/1+S2/7 S1/2+S2/8 S1/3+S2/9
• S1/1+S2/8 S1/2+S2/9
• S1/1+S2/9

Adds 36 additional traits in total.

In the event that both a single cam and a double cam are queried on each side of the key, with the single cam having 9 control heights and the double cam having 7 control heights, there are even 16 possible query positions per pin pair.

the Figures 7a - 7d show further embodiments of key 1 according to the invention and corresponding locks. Shown is a plan view of the key channel 11 with the scanning positions A - F, with the core head of the lock cylinder being at the top, ie in the region of the scanning position A. A key according to the invention is thus inserted into the lock from above in this view.

At each scanning position A - F there are control elements 13, 13' on both sides of the key channel, which are either first control elements 17, 17' for querying the deep grooves on the key, second control elements 18, 18' for querying the shallow grooves, or control elements with a larger diameter 27, 27'. The control elements 13, 13' are shown to the right and left of the key channel 11 in a position rotated by 90°. The appropriately executed key is in the Figures 7c and 7d shown schematically to the right and left of the key channel 11, a control point with a larger diameter 25, 25' being provided at the scanning position F at the tip of the key on both sides 2, 2' of the key.

In the illustrated embodiments, the key is provided with both a deep cam groove 8, 8', two shallow cam grooves 9, 9', and a larger diameter cam 25, 25' at the sensing position F at the tip of the key. The control point with a larger diameter 25, 25' is part of a deep control groove with a larger diameter 26, 26', which from scanning position F merges into the deep control groove 8, 8', as in FIGS Figures 2a - 2b and 3a - 3f shown.

Correspondingly, each of the three control elements is used at least once in the key channel, namely the first control element 17, 17' for scanning the deep control groove 8, 8', the second control element 18, 18' for scanning the shallow control grooves 9, 9' and the control element with a larger diameter 27 , 27' for scanning the larger diameter control point 25, 25'.

At least the last scanning position A of the core head of the lock cylinder has the same control element on both sides. This ensures that the respective other coding is not required and can therefore be made shorter.

In the Figures 7a - 7d embodiments of keys and locks according to the invention are shown, in which the length of the shallow control grooves 7, 7' on the key is varied. Accordingly, the key channel in Figure 7d at positions AE on both sides only first control elements 17, 17' for scanning the deep control groove 8, 8'. A second control element 18 for scanning the shallow control grooves 9 is also provided only at the scanning position F, which corresponds to the tip of the key. In addition, at scanning position F, a control member with a larger diameter 27, 27' is always provided on both sides of the key channel for querying a control point with a larger diameter 25, 25'.

In the embodiment after Figure 7a the deep control groove 8, 8' and the shallow control grooves 9, 9' of the key are alternately scanned at the scanning positions C, D and E. At the scanning positions A and B, only the deep control groove 8, 8' is scanned on both sides. At the scanning position F, a control member with a larger diameter 27' is provided on one side for interrogating the control point with a larger diameter 25'.

the Figures 8a - 8d show further embodiments of keys and locks according to the invention. These figures show embodiments in which the length of the deep control grooves 8, 8' on the key is varied. Accordingly, the key channel in Figure 8d at the positions A - D on both sides only second control elements 18, 18' for scanning the shallow control groove 7, 7'.

In addition, a first control element 17 is provided at the scanning position E, so that each of the three control elements is also used at least once in these exemplary embodiments. In addition, at the scanning position F, a control element with a larger diameter 27, 27' is always provided on both sides of the key channel for querying a control point with a larger diameter 25, 25'.

In the embodiment after Figure 8b the deep control groove 8, 8' and the shallow control grooves 9, 9' of the key are alternately scanned at the scanning positions C, D and E. At the scanning positions A and B, only the shallow control grooves 9, 9' are scanned on both sides. At the sensing position F, on one side of the keyway 11, there is a larger diameter control member 27' for interrogating the larger diameter control point 25'.

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

Reference List

1

key

2

First face

2'

second face

3, 3'

coding

4

Scanning position on the key

5

tax amount

6, 6'

Depth helm station

7, 7'

Shallow helm

8, 8'

Deep control groove

9, 9'

Shallow control groove

10

key bow

11

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 organ

19, 19'

query groove

20

key tip

23

core

24

Housing

25, 25'

Larger diameter control point

26, 26'

Larger diameter deep cam groove

27, 27'

Larger diameter controller

28

inlet area

Claims (18)

1. A key (1) for locking a cylinder lock, comprising

   a. at least one first surface (2) and at least one second surface (2'),

   b. with sensing positions (4) provided along the longitudinal extent of the key (1),

   c. wherein the first surface (2) is provided with at least one code (3) and the second surface (2') is provided with at least one further code (3'),

   d. wherein the codes comprise control points (6, 6', 7, 7') at the sensing positions (4) provided transversely to the longitudinal extent of the key (1) and arranged at certain control heights (5), which are connected to one another via control grooves (8, 8', 9, 9'),

   e. wherein at least three control grooves are provided, of which at least one is constructed as a deep control groove (8, 8') with deep control points (6, 6'), and the remaining control grooves are constructed as shallow control grooves (9, 9') with shallow control points (7, 7'), the deep control grooves (8, 8') having a larger groove depth than the shallow control grooves (9, 9'), and the shallow control grooves (9, 9') running essentially parallel to one another,

   f. wherein at least one control point (25, 25') is provided with a different dimension on both surfaces (2, 2') at at least one sensing position (4), i.e. with a larger diameter than the control points (6, 6', 7, 7') at the other sensing positions (4),
   characterized

   g. in that the control point (25, 25') with a different dimension is part of the deep control grooves (8, 8') which, starting from the key tip (20) up to the control point (25, 25'), is designed as a deep control groove with a larger diameter (26, 26'), the diameter of which corresponds substantially to the diameter of the control point (25, 25') with a different dimension,

   h. wherein the deep control grooves (8, 8') on the key tip (20) are arranged between the shallow control grooves (9, 9') and merge with them so that no separating bar of material remains on the key tip (20) between the deep control grooves (8, 8') and the shallow control grooves (9, 9').
2. The key according to claim 1, characterized in that

   a. the codes of the two surfaces are different at at least one sensing position (4) with regard to the locking system, and

   b. the codes of the two surfaces are identical at at least one sensing position (4) with regard to the locking system.
3. The key according to claim 1 or 2, characterized in that further codes are provided on the surfaces (2, 2') and/or at other locations on the key (1).
4. The key (1) according to one of claims 1 to 3, characterized in that the control points (6, 6', 7, 7') and/or further codes at other locations of the key (1) substantially comprise rectilinear, angled, circular or bent, horizontally or vertically extending grooves, channels, milled sections, notches or elevations, control surfaces, control paths, recesses, drilled recesses with identical or different diameters and/or depths, mounted balls, circular or elliptical segment recesses, spherical-segment-shaped elevations or recesses, magnetic codes, electronic codes and/or combinations of these elements.
5. The key (1) according to one of claims 1 to 4, characterized in that the surfaces (2, 2') are key flat sides (16, 16').
6. The key (1) according to one of claims 1 to 4, characterized in that the surfaces (2, 2') are key narrow sides (15, 15').
7. The key (1) according to one of Claims 1 to 6, characterized in that the first surface (2) is a key narrow side and the second surface (2') is a key flat side.
8. The key (1) according to one of claims 1 to 7, characterized in that at least six sensing positions (4) A-F are provided in the longitudinal direction of the key (1) and that at least six control heights (5) a-f are provided in the transverse direction of the key (1).
9. The key (1) according to one of claims 1 to 8, characterized in that at least three, preferably five, control heights (5) are provided for at least one control groove, preferably for the shallow control grooves (9, 9').
10. The key according to one of claims 1 to 9 with a key tip (20) and a key bow (10), characterized in that the codes (3, 3') are initially realized identically on both surfaces (2, 2') starting from the key tip (20) in the direction of the key bow (10), and are realized differently, preferably continuously differently, from a certain sensing position (4).
11. The key according to one of claims 1 to 10 with a key tip (20) and a key bow (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 towards the key bow (10) only extend up to a certain sensing position (4), while the respective other control grooves (8, 8', 9, 9') extend beyond it.
12. The key according to one of claims 1 to 11 with a key tip (20) and a key bow (10), characterized in that the differently dimensioned control point (25, 25') is arranged at the first sensing position (4) starting from the key tip (20).
13. The key according to one of claims 1 to 12, characterized in that the control point (25, 25') with a different dimension has a diameter that is about 10 % to about 40 % larger than the diameter of the other control points (6, 6', 7, 7').
14. The key according to one of claims 1 to 13, characterized in that the deep control groove (8, 8') is configured as deep control groove with a larger diameter (26, 26') starting from the key tip (20) to the control groove (25, 25'), the deep control groove with a larger diameter (26, 26') tapering from the key tip (20) towards the key bow (10) until it becomes the deep control groove (8, 8') so that a preferably funnel-shaped inlet area (28) is formed at the key tip (20).
15. A cylinder lock for a key (1) according to one of claims 1 to 14, comprising

    a. a keyway (11) with at least two sides,

    b. with sensing position (12) provided along the longitudinal extent of the keyway (11),

    c. wherein at least one control element (13, 13') with control organs (17, 17', 18, 18', 27, 27') for engaging at least one code on at least one surface (2, 2) of the key (1) is provided at each sensing position (12).

    d. wherein the control elements (13, 13') comprise first control organs (17, 17') for engaging in deep control grooves (8, 8') and second control organs (18, 18') for engaging in shallow control grooves (9, 9'),

    e. wherein at least one locking element (14, 14') is provided, which, given an appropriate position of the control element (13, 13'), can be brought into a released position for actuating the lock,

    f. wherein the control organs (27, 27') have a different dimension at at least one sensing position (12), i.e. a greater width, than at the other sensing positions (12),
    characterized in that

    g. those control organs (27, 27') with a different dimension are arranged at the last sensing position (12), starting from a core head of the cylinder lock, and are designed for sensing control points with a larger diameter (25, 25'), which are each part of a deep control groove with a larger diameter (26, 26').
16. The cylinder lock according to claim 15, characterized in that

    a. control elements (13, 13') for reading different codes on two surfaces (2, 2') of the key are provided at least at one first sensing position (12) on two sides of the keyway (11), and

    b. control elements (13, 13') for reading identical codes on two surfaces (2, 2') of the key are provided at least at one second sensing position (12) on two sides of the keyway (11).
17. The cylinder lock according to claim 15 or 16, characterized in that the control elements (13, 13') for controlling the locking elements (14, 14') have engaging means, particularly one or more reading grooves (19, 19'), which interact with the locking element (14, 14') in one or more positions of the control element (13, 13') in such a manner that the same can be brought into a release position for actuating the lock.
18. A system made up of at least two locks or lock groups according to one of claims 15 to 17 and at least one associated key (1) according to one of claims 1 to 14, characterized in that

    a. at least one first lock or a first lock group reads at least only the first code on the first surface (2) at least at one specific sensing position, and

    b. at least one second lock or a second lock group reads at least only the second code on the second surface (2') of the key at the same sensing position,

    c. so that the key (1) locks the first lock or the first lock group in a first position and in a second position locks the second lock or the second lock group.

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