EP1715120B1 - Security lock with additional coding - Google Patents

Description

The invention relates to a locking system consisting of a security lock with a tumbler package and a double-bitted key for actuating the security lock.

Such locks are mainly used in security-relevant buildings such as correctional facilities or similar facilities, in locks or safes. They are equipped with solid housings, the locking mechanism must be operated with a particularly secure double-bit key. The use of such systems in systems entails that different persons are authorized to open the locks of such a locking system. For these persons there are different hierarchies, ie there are simple and main or general keys, keys with which certain tracts, areas or locks can be opened and individual rooms, which are opened by the authorized persons of different hierarchy and whose door locks can be operated accordingly , From the EP 0 778 382 A1 a lock is known which is actuated by a key having additional notches in the beard area. It is a kind of double lock, so the combination of two locks. The key is inserted vertically for the purpose of querying the first lock for the purpose of interrogation, the interrogation then takes place via the pinning after a rotation and the pushing through of the key after successful authorization. The key can then be inserted through the upstream lock in the main lock to perform a query of the tumblers. The corresponding requests are thus successively in separate locks. At the lock and key according to GB 459.061 the key carries a cylindrical ring, the lock has a correspondingly cylindrical recess, so that together they form an encoding. This wreath is formed as a thickening on the key blade between Reide and beard, which prevents the insertion of a key into the lock as it has too large a diameter.

Therefore, the present invention has the object to provide a security lock that allows actuation of the locks of a locking system in view of the different access permissions of multiple key holder.

This object is essentially achieved in that the wrench-side mechanical coding representing wreath between Reide and beard is formed with at least one recess and / or a projection.

Lock and key are provided with a mechanical coding, which is arranged in the insertion direction of the key and therefore prevents the key can be inserted into the lock and the locking mechanism can be operated accordingly, if the codes of lock and key block. The lock-side coding blocks the insertion of the key into the lock and thereby the operation of the locking mechanism when a person tries to operate the lock with a key without having the required minimum level in the hierarchy. It is envisaged that the key-side mechanical coding is assigned to the key half between Reide and Bart. The key can be processed in a preferred variant so that the mechanical coding representing wreath projects beyond the circumference of the straw. A reverse expression is also conceivable. Preferably, the mechanical coding is on the Key bit facing the end of the stem and thus arranged as close to the key bit to exploit the existing depth of a castle, possibly with attached extension or key guide can.

The additionally attached and independently functioning mechanical coding in the insertion direction of the key ensures that it is spatially separated from the locking mechanism and thus does not impair the function and safety of the locking mechanism. Ie. The key is first inserted into the lock, but reaches the locking mechanism only on condition that the codes do not block each other.

In one embodiment of the invention, the coding is not in the area of the actual closing mechanism or of the key bit, but instead precedes it and shields the locking mechanism against the unauthorized insertion of unauthorized keys.

It is particularly expedient if the lock-side mechanical coding is integrated in the keyhole and / or an extension of the keyhole. Especially the latter variant brings with it the advantage that the mechanical coding can be effected by a separate component. For this purpose, a key guide in permanently installed or in the form of a rotatably mounted disc, which is formed inside corresponding to the keyhole and is fixed over this. This has the advantage that this component can also be retrofitted. Such retrofitting can not only be required if previously not equipped with a mechanical coding locks are to be provided with such, but for organizational reasons, a transcoding can be performed by replacing the serving as an extension of the keyhole component is replaced.

Furthermore, it can be regarded as advantageous if the lock-side mechanical coding is integrated in the base plate and / or the ceiling of the lock housing. In this case, a wide variety of postions for the lock-side coding are conceivable, as in the area of the base plate or in the area of the ceiling, in each case inside and outside. The coding can also be integrated into a separate, serving as a key guide component beyond.

With regard to the formation of the coding, it is proposed that the lock-side mechanical coding has a profiling. This profile is preferably embedded in the keyhole or its extension in the base plate or ceiling and may possibly also serve as an additional guide for the key when inserted into the lock.

It is provided that serves as an extension of the keyhole a disc having a profiled recess. A disc can be retrofitted particularly well by being fixed to the lock housing, the recess is formed corresponding to the keyhole, so that the disc virtually forms its outer end or an integral part of the key guide. The recess is formed at its outer edge in the manner of a profile, which serves as a mechanical coding. This recess with the profile can therefore only be passed by the key when inserted into the lock, if the hierarchical assignment of the codes allows it.

Locks, especially as part of a locking system, can have a wide variety of door or wall thicknesses. Et al To be able to achieve a compensation here, it is provided that the disc is rotatably mounted.

It has already been pointed out that the lock-side mechanical coding can be formed by a profile which serves as the outer closure of a recess in the key guide or disk. Hereby corresponds the suggestion that at least one profile serves as a key-side mechanical coding. This profile is provided on the key, e.g. B. introduced into this and should be matched to the effect on the castle that the key-side profile can pass through the lock side only if the appropriate coding allows it, since the corresponding hierarchy level is present. It is also conceivable that a key also has several such profiles, if necessary, to be able to be adapted to different locks with different door or wall thicknesses.

It is proposed that the profile is formed on one side or on both sides of the key bit. For keys that can be used in two directions rotated by 180 ° in a castle, it is necessary that the profile according to the invention is arranged on both sides of the key bit to be used. For other types of locks, it is also conceivable that the profile is provided only on one side of the key bit. Here, in principle, a one-sided training on the key bit and also on the corresponding profile on the castle.

According to the invention it is provided that serves as a key-side profile a wreath. This has depressions or projections, which in turn correspond with corresponding bulges or incisions on the closing side.

This is accomplished by the collar and possibly the recess having at least one depression and / or one projection. The number and / or shape of the recesses or the projections remaining after production of the key-side profile depend on the hierarchy to be mapped for the various locks of a locking system. In addition to the number, alternatively or additionally, the size or shape of recesses and indentations or bulges can be aligned with the coding. The highest key in the ranking would therefore be provided with a particularly large or the most complicated form of a profile forming coding. The higher the owner of the key in the Hierarchy is settled, the more complex or larger the formations must be formed in the profile.

The invention is characterized in particular by the fact that a security lock z. B. is created for use in a locking system in prisons, which has a mechanical coding, which is adapted to map the hierarchy of the access to this lock. The locking system includes various locks and Doppelbartschlüsseln of locking systems of the type according to the invention, which can be operated only by the authorized persons. The mechanical coding blocks these locks by already preventing the insertion of the key into the lock and / or the operation of the key in the locking mechanism, if the holder of the key does not have at least the required security level. One or more codes can be accommodated in the area of the base plate or ceiling inside and / or outside, possibly also in a separate false ceiling and positioned accordingly on the key. Thus, the locking system next to a simple key on the lowest hierarchy level, which fits only to a specific lock or a key group, too General keys of different standards include. For example, the locking system mechanical codings in the form of profiles on lock and / or keys have. Here there are particularly "permeable" profiles, which, as far as the hierarchy is concerned, the lowest profile has the lowest profile. The comparatively complicated profile, on the other hand, represents the uppermost master key with which each lock can be opened, because it can be used in virtually every lock-side profile. If someone has illegally tampered with a key, for example by introducing the advanced mechanical coding, this manipulation can be easily understood. However, safety-relevant aspects can be left out of consideration in this regard, since the mechanical coding according to the invention, apart from the fact that it must be overcome for the complete insertion of the key into the lock, can function independently of the actual closing function of this lock.

Figur 1

ein Schlossgehäuse in perspektivischer Ansicht,

Figur 2

einen Schlüssel,

Figur 3

eine Scheibe als Verlängerung für einen Schlüsselloch,

Figur 4

den Schlüssel nach Figur 2 in perspektivischer Ansicht und

Figur 5

den Schlüssel in Ansicht von unten.

Further details and advantages of the subject invention will become apparent from the following description of the accompanying drawings in which a preferred embodiment with the necessary details and individual parts is shown. Show it:

FIG. 1

a lock housing in perspective view,

FIG. 2

a key,

FIG. 3

a disc as an extension for a keyhole,

FIG. 4

the key after FIG. 2 in perspective view and

FIG. 5

the key in bottom view.

FIG. 1 shows a lock 1, in which all components not essential to the invention are not shown. In the area of the base plate 28 of the housing 27 is formed as a disc 18 and key guide extension 6 of the keyhole 5. Also in the ceiling 30 of the housing 27, a coding can be integrated. To be used in the actual locking mechanism To be able to do this, the key, not shown here, must first pass through the lock-side mechanical coding 3. However, this succeeds only on condition that the codes of key and lock 1 correspond, that the coding of the key is thus designed such that it is not blocked by the lock-side mechanical coding 3. Otherwise, the insertion of the key to operate the bolt 26 or a trap is not possible.

Such a key shows FIG. 2 , In the insertion direction 24 of the key 2 in the lock this has between stem 21 and 23 beard here only one-piece, formed by the profile 8 mechanical coding 4 on the key cereal 22 from the blade 21 and the preferably asymmetrically designed double bit , It is a trained as a rim 11 profile 8 with the wells 12 to 15, which can also be positioned elsewhere on the key blade. But it is also conceivable that this is formed with other profiles in order to achieve better compatibility with various locks.

In FIG. 3 is the insertion direction FIG. 2 provided with the reference numeral 25. In the region of the recess 16, the key is used, a prerequisite for being able to reach the locking mechanism, but is that the mechanical coding 3 in the form of the profile 7 can be passed. For this purpose, the bulges 12 ', 13', 14 ', 15' formed corresponding to the key-side profile can be seen in the region of the recess 16. These can thus only be passed in this embodiment, if the corresponding key does not hang there. The disc 18 serves as an extension for the lock and is corresponding to the keyhole fixed on the housing, ie the recess 16 is placed on the keyhole and fastened via the holes 17, 19.

FIG. 4 shows the key according to FIG. 2 in a perspective view with key 22, straw 21 and beard 23 and the profile 8 in the form of the wreath 11 between Halm 21 and Bart 23. However, this key differs from the one in FIG. 2 represented by the fact that the rim 11 only has a radian measure of about 100 ° to 120 °, which is sufficient in principle, if it is not a lock, in which the key can be used by 180 ° offset positions.

The same key with its essential components also shows FIG. 5 , Evident are next to the centering lug 20 and beard 23 especially the profile 8 in the form of the ring 11 with here five recesses 12, 13, 14, 15 and 29 which are provided only on one side of the beard 23.

Claims (10)

1. Locking system, consisting of a safety lock (1) with a tumbler packet and a double bit key (2) for operating the safety lock (1), whereby the lock (1) and the key (2) have a mechanical coding (3, 4) aligned in the direction in which the key is inserted (2) that enables the key (2) to be inserted into the lock (1) only under the precondition that the codings (3, 4) correspond and whereby the mechanical coding on the key side (4) is designed as a rim (11) between bow (22) and bit (23) with at least one indentation and/or a projection.
2. Locking system in accordance with Claim 1,
   characterised by the fact
   that the mechanical coding (3, 4) is designed to be spatially separated from the closing mechanism of the lock (1).
3. Locking system in accordance with Claim 1,
   characterised by the fact
   that the mechanical coding (3, 4) can block insertion of an unauthorised key (2) into the lock (1).
4. Locking system in accordance with Claim 1,
   characterised by the fact
   that the mechanical coding (3) on the key side is integrated in the keyhole (5) and/or an extension (6) of the key hole (5).
5. Locking system in accordance with Claim 3,
   characterised by the fact
   that the mechanical coding (3) on the key side is integrated in the base plate (28) and/or the cover (30) of the lock housing (27).
6. Locking system in accordance with Claim 3,
   characterised by the fact
   that the mechanical coding (3) on the key side has at least one profile (7).
7. Locking system in accordance with at least one of the above Claims characterised by the fact
   that a disc (18) that has a profiled recess (16) serves as extension (6) of the keyhole (5).
8. Locking system in accordance with Claim 7,
   characterised by the fact
   that the disk (18) is on rotating bearings.
9. Locking system in accordance with Claim 8,
   characterised by the fact
   that at least one profile (8) serves as the mechanical coding (4) on the key side.
10. Locking system in accordance with Claim 9,
    characterised by the fact
    that the profile (8) is provided either on one side or on both sides of the key bit (23).

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