AT523378A2 - Key for a cylinder lock and coding system for a key - Google Patents

Abstract

The invention describes a key (2) for a cylinder lock (1), comprising at least one key handle (3) and a key shaft (4), with the key shaft (4) on at least one side surface (5) of the key shaft (4 = a coding ( 6), which are arranged from several coding elements (7) in the form of elevations (7a) and depressions (7b) The coding elements (7) are in the form of parallel in the longitudinal direction of the key shaft (4) Corrugated tracks (8) formed over at least part of a length (9) of the key shaft (4), with several coding elements (7) arranged next to one another. Furthermore, an 8-bit coding (6) is located on the side surface (5) at each query position. of the key shaft (4), at least two query positions (10), in particular 6 to 12 query positions (10), being arranged for a key (2).

Description

The invention relates to a key for a cylinder lock and a coding system for a key as described in claims 1 and 8.

Keys, in particular flat keys, are already known in which a coding, in particular coding elements, are attached to the key shaft and are queried via locking plates in a cylinder lock. The coding elements can be made on the one hand via incisions, in particular serrated indentations, on the end faces of the key shaft or via recesses, in particular bores, on the side surface of the key shaft. The disadvantage here is that such codings are very coarse and the usual incisions or usual bores can be imitated with a relatively simple tool. A laterally attached indentation, such as: curves, are a bit better, but this key can also be copied relatively quickly through photography and conventional 3D printers.

Conventional keys are mechanically machined to conform to the cylinder so that grooves, bores or shaped recesses are created. These are subjected to a positive test in the cylinder. If the arbitrary recesses match the positive query in the cylinder, you can twist the core and thus open the cylinder. The recesses were brought into a mathematical order in order to be able to provide a controlled closure. This enables a so-called lock hierarchy to be created for several keys.

The object of the invention is therefore to create a key with which, on the one hand, the above-mentioned disadvantages are avoided and, on the other hand, the reproduction

to make it much more difficult.

The object is achieved by the invention.

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The advantage of this is that a shaft or curve, which form the coding elements, is milled into the narrow side of the key in the longitudinal direction of the key bit or key shaft. This means that a single, main and group key can be generated via the waveform, whereby this type of milling makes it very difficult to imitate the fact that the parallel waves blur into one another. The special feature of the invention is to superimpose the depressions of the waveform and preferably more than one per side in order to

to increase the variation of the key.

A design is advantageous in which coding elements are arranged on both side surfaces of the key shaft, which are designed as mirror images. This ensures that the greatest possible utilization of space is used for the coding, so that a large number of different coding options is created. Furthermore, the rectangular design of the key shaft increases stability.

The designs are advantageous in which coding for individual, main and / or group keys is possible via the coding elements. As a result, such a key can also be used for residential complexes, company buildings or even for individual households. Because it is designed as a main or group key, access to different rooms can be easily regulated so that not all people have access to every room, as is the case with a main key. This reduces the number of keys on the bunch of keys. Fewer keys are required to operate the system.

It is also advantageous to have a design in which the coding elements, in particular the wave track, are milled in the form of depressions, with

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An embodiment is advantageous in which the coding elements, in particular the depressions in the corrugated track, are designed to be superimposed and preferably more than one per side. This also makes a replica more difficult.

It is also advantageous to have a design in which the coding elements, in particular the depressions in the wave path, are formed by a sine wave or a cosine wave. As a result, the coding can only be produced using a special production process, in particular milling. This means that it is impossible to use commercially available tools such as a drill, wax impression, file, etc. to imitate such a shaft key.

However, training in which the coding elements,

in particular the depressions of the wave path, are formed by interference. This further increases the security against forgery. You can't see the wave very well, you can only see the rest of the material that is left over when you lay several waves on top of each other for coding. A wave could possibly be guessed because it has recurring wave troughs and wave crests. Using multiple shafts, the interference is milled into the key shaft. The negative imprint of the remains in the key shaft

Milled image, which is an interference pattern of several waves.

The object of the invention is also achieved by a coding system for a key in which an 8-bit coding is arranged on the side surface of the key shaft at each query position, with at least two query positions, in particular 6 to 12 query positions, being arranged for a key. This advantageously means that a large number of different coding options are created. Furthermore, for example, the address, a

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previous mechanical systems in the form of analog 96-bit coding

However, an embodiment is also advantageous in which the coding, in particular coding elements, are in the form of corrugated tracks formed parallel in the longitudinal direction of the key shaft over at least a partial area of a length of the key shaft, with several coding elements being arranged next to one another. The advantage here is that the protection against forgery is increased due to the wave shape. At the same time, a longitudinally extending wave track can be adapted to the shaft width of the key through the width of a milling so that for the first time 8 parallel query points or wave tracks are possible. There are 8 waves, whereby these waves are scanned on 12 frets or query positions. The collar or the query position then has 8

Waves at this position that corresponds to the 8 bits.

A design is advantageous in which coding elements are arranged on both side surfaces of the key shaft, which are designed as mirror images. It is advantageous here that binary coding with 1 bit per query position is possible for the first time, so that the coding can also be personalized with regard to the user. The key can be used in both directions (reversible key) without any restriction of the

To have the ability to vary.

An embodiment is advantageous in which coding for individual, main and / or group keys is possible via the coding elements. This creates a large area of application for the key. There are also overarching lock hierarchies

thus possible. A person only gets one key that the individual uses

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An embodiment is advantageous in which the coding elements, in particular the corrugated track, can be produced by milling, which are designed in the form of depressions, with several depressions being arranged one after the other in the longitudinal direction. In this way, the coding can be produced by milling. This can lead to an increase in the

Coding options can be achieved.

A design is also advantageous in which the coding elements, in particular the depressions of the corrugated track, are designed to be superimposed and preferably more than one per side. This is a simple forgery due to a

recorded image is hardly possible any more.

An embodiment is advantageous in which the coding elements, in particular the depressions in the wave path, are formed by a sine wave or a cosine wave. This also increases the security against forgery.

Finally, an embodiment is advantageous in which the coding elements, in particular the depressions in the wave path, are formed by interference from wave paths running parallel in the longitudinal direction.

The invention is explained in more detail with reference to the exemplary embodiments shown in the drawings, the invention not being limited to these exemplary embodiments.

Show it:

1 shows a schematic representation of a cylinder lock with an inserted key, in a simplified, schematic representation;

2 shows a side view of a key, in particular a flat key, in a simplified, schematic representation;

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3 shows a sectional illustration through the key shaft according to FIG. 2, in a simplified, schematic illustration;

4 shows a schematic representation for the production method of the key with wave-shaped coding, in a simplified, schematic representation;

FIG. 5 shows a plan view according to FIG. 4, in a simplified, schematic representation:

6 shows a schematic representation of a special coding for the key on the key shaft, in a simplified, schematic representation.

By way of introduction, it should be noted that in the different embodiments, the same parts are provided with the same reference symbols or the same component designations, it being possible for the disclosures contained in the entire description to be transferred accordingly to the same parts with the same reference symbols or the same component designations. The position details chosen in the description, e.g. above, below, to the side, etc., refer to the figure described and are to be transferred to the new position in the event of a change in position. Individual features or combinations of features from the exemplary embodiments shown and described can also represent independent inventive solutions.

In FIGS. 1 to 6, in particular in FIG. 1, a cylinder lock 1 is shown with an inserted key 2 according to the invention, the representation of a catch or a locking lug on the cylinder lock 1 being dispensed with. The task of the spermase or the driver is that when the cylinder lock 1 is released, i.e. when the inserted key 2 can be turned, the driver is also turned and, for example, when the cylinder lock 1 is installed in a door (not shown), the rocker or the locking pin is over the driver is operated so that the door can be opened or closed.

The key 2 according to the invention is preferably designed as a flat key which consists of a key handle 3 and a key shaft 4. The key shaft 4 has a coding 6 on the side surfaces 5. the

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In addition, it must be ensured with such a key 2 that the coding 6 cannot simply be imitated, which is simply the case, for example, with spikes or bores. In the case of such prior art keys 2 with prongs or bores, a simple picture from a cell phone is often sufficient to be able to imitate the key 2 without problems, since the elevations and depressions or prongs of the coding elements are easily recognizable. It is also often easily possible from the state of the art that the image is displayed via a 3D

Print is printed out, allowing a simple copy of Key 2 to be made.

According to the invention it is now provided that the coding 6 is specially designed in order to make the reproduction more difficult. For this purpose, the coding elements 7 are in the form of corrugated tracks 8 formed parallel in the longitudinal direction of the key shaft 4 over at least a partial area of a length 9 of the key shaft 4, with several coding elements 7 being arranged next to one another, i.e. at least two running parallel

Wave tracks 8 with at least two coding elements 7 are arranged.

A design of the key 2, in particular the flat key 2, has proven to be advantageous in which four to eight parallel corrugated tracks 8 are arranged, which are queried over six positions 10 via locking disks in the cylinder (not shown), as shown schematically with rectangular dashed lines Lock washers 11 or lock washer symbols 11

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Possibilities for coding 6 created.

The key 2 according to the invention with corrugated tracks 8 is produced in such a way that the narrow side, i.e. the side surface 5, of the key 2 is milled in the longitudinal direction of the key shaft 4, with a wave or curve as the coding element 7, in particular elevation 7a, depression 7b or neutral position 7c is formed. The different coding elements 7 can be formed due to a milled depth, the milling being formed or milled continuously, i.e. without interruption, over the length 10 of a corrugated track 8, so that a continuous corrugated track 8 is formed from nothing but intermingling arcs . For this purpose, the key 2 is fastened or inserted in a clamping device (not shown) and then the key shaft 4 is worked by a milling cutter 12, in particular a milling disk 12a or end mill, which corresponds to the width 13 of a corrugated track 8, the milling cutter 12 corresponding to the required depth 14 is adjusted accordingly in order to generate a corresponding wave path 8 after the other. In principle, any other type of processing, such as, for example, a laser with the corresponding material, can be removed, is possible for the production of the key 2.

It can therefore be said that the key 2, in particular a key blank, is clamped in a holder, whereupon the milling cutter 12, in particular the disk-shaped milling cutter 12, is positioned on the first corrugated track 8 at the beginning of the key shaft 4, whereupon the milling cutter 12 is positioned horizontally Milling corrugated track 8 over the length 10 in the key shank 4 with different depths 14, whereby, depending on the required coding element 7, the milling cutter 12 is placed closer, deeper or further away from the key shank 4, so that the milling cutter 12 has the coding designed as a shaft -Elements 7 by a contiguous

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Will create peaks and valleys.

The processing is preferably carried out fully automatically by a computer-controlled milling machine, with software being installed for this purpose, in which one randomly or deliberately enters or creates a code 6, whereupon the key blank is automatically processed, that is, only the blank is placed in a holder or a clamping device must be inserted, whereupon one corrugated track 8 after the other corrugated track 8 is milled into the side surfaces 5 of the key shaft 4. After completing one side, the milling machine interrupts the machining process so that the key 2 can be turned if there is no automatic turn, whereupon the second side surface 5 is created, so that the same coding 6 is preferably applied to both sides.

Due to the coherent wave forms, that is to say the wave path 8, such a key 2 cannot easily be imitated. In particular not if only one photo is taken of a key 2, since the successive waves run into one another in such a way that the height differences are not perceptible.

Furthermore, it is provided according to the invention that the key 2 according to the invention first has a binary coding 15, as is shown schematically in FIG. 6 in the form of simple depressions. For the first time, eight query points 16 arranged in parallel are arranged on the key shaft 4 in each position 10-1 to 10-12, so that these eight query points 16 are queried in one position via the locking disk 11, which corresponds to 1 byte, i.e. so-called 8 bits per query position 10 -1 to 10-12, i.e. 8 points per locking disc 11, corresponds to.

The key 2 is coded at more than 2, preferably at 6 positions, so that a wave trough, i.e. a depression 7b, corresponds to a 0 and a wave crest, i.e. an elevation 7a, corresponds to a 1. However, several path depths are provided, preferably 3, that is to say also a neutral position 7c. In each of the positions, a locking disk 11 slides in the cylinder lock 1 and touches the elevations 7a (wave crests),

Depressions (wave troughs) and the neutral position 7c.

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In the exemplary embodiment in FIG. 6, all interrogation points 16 are shown schematically with a recess 7a, with different coding elements 7 usually being used. A key 2 and subsequently the associated cylinder lock 11 are thus binary-coded and encrypted / encrypted according to the “AES algorithms (Advanced Encrypting System)”. The encryption corresponds to a 96-bit representation on key 2, whereby the key milling has a matrix of 12x8 bits and the whole thing can be coded by 3 path depths, so that a key 2 can be calculated and produced using 96-bit / 256-bit.

The cylinder lock 1 also uses the “AES algorithms” and decodes the key 2, the key 2 preferably being formed with corrugated tracks 8, that is to say with 8 parallel corrugated tracks 8-1 to 8-8. The formation of 8 parallel tracks or wave tracks 8-1 to 8-8 at a position 10 is possible because the coding 6 is created by the milling cutter 12, in particular the milling disk 12a, the milling width 17 of which corresponds to 1/8 of the The shaft width corresponds to 18, so that 8 lanes 8-1 to 8-8 or query points 16

can be generated among each other.

For the sake of clarity, it is pointed out that the invention is not limited to the embodiment variants shown, but can also include further developments. In particular, the design variants or

individual features of the design variants can also be combined with one another.

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Claims (1)

. Key (2) for a cylinder lock (1), comprising at least one key handle (3) and a key shaft (4), a coding (6) on the key shaft (4) on at least one side surface (5) of the key shaft (4), which consists of several coding elements (7) in the form of elevations (7a) and depressions (7b), are arranged, characterized in that the coding elements (7) in the form of parallel corrugated tracks in the longitudinal direction of the key shaft (4) (8) are formed over at least a portion of a length (9) of the key shaft (4), with several coding elements (7) are arranged side by side. . Key (2) according to claim 1, characterized in that coding elements (7) are arranged on both side surfaces (5) of the key shaft (4), which are mirror-inverted. . Key (2) according to Claims 1 and 2, characterized in that coding (6) for individual, main and / or group keys is possible via the coding elements (7). . Key (6) according to the preceding claims, that the coding elements (7), in particular the corrugated track (8), can be produced by milling in the form of depressions (7a) and elevations (7b), with several depressions (7a ) and / or elevations (7b) are arranged one after the other in the longitudinal direction. . Key (2) according to the preceding claims, characterized in that the coding elements (7), in particular the depressions (7a) of the corrugated track, are designed to be superimposed and preferably more than one per side. . Key (2) according to the preceding claims, characterized in that the coding elements (7), in particular the 19030AT 7. Key (2) according to the preceding claims, characterized in that the coding elements (7), in particular the depressions (a) of the wave path (8), are formed by interference. 8. Coding system for a key (2) for a cylinder lock (1), comprising at least one key handle (3) and a key shaft (4), the key shaft (4) on at least one side surface (5) of the key shaft (4) several coding elements (7) are arranged, characterized in that an 8-bit coding (6) is arranged on the side surface (5) of the key shaft (4) at each query position (10), with at least two query positions (10), in particular 6 to 12 query positions (10) for a key (2) are arranged. 9. Coding system according to claim 8, characterized in that the coding (6), in particular coding elements (7), in the form of corrugated tracks (8) formed in parallel in the longitudinal direction of the key shaft (4) over at least part of a length ( 9) of the key shaft (4) are formed, with several coding elements (7) are arranged side by side. 10. coding system according to claim 8 or 9, characterized in that on both side surfaces (5) of the key shaft (4) coding elements (7) are arranged, which are mirror images. 11. Coding system according to Claims 8 to 10, characterized in that coding (6) for individual, main and / or group keys is possible via the coding elements (7). 12. Coding system according to the preceding claims 8 to 11, that the coding elements (7), in particular the wave track (8), by milling, the 19030AT are arranged one after the other in the longitudinal direction. 13. Coding system according to the preceding claims 8 to 12, characterized in that the coding elements (7), in particular the depressions (7a) of the wave track (8), are formed overlying and preferably more than one per side. 14. Coding system according to the preceding claims 8 to 13, characterized in that the coding elements (7), in particular the depressions (7a) of the wave path (8), is formed by a sine wave or a cosine wave. 15. Coding system according to the preceding claims 8 to 14, characterized in that the coding elements (7), in particular the depressions (7a) of the corrugated track (8), are formed by interference from corrugated tracks (8) running parallel in the longitudinal direction. educated is. Makivic represented by Felfernig and Graschitz Rechtsanwälte GmbH lawyer Dr. Roland Graschitz 19030AT