EP0013253B1 - Cylinder lock with key for mechanical and/or electromechanical latching - Google Patents

Abstract

PCT No. PCT/DE79/00144 Sec. 371 Date Aug. 13, 1980 Sec. 102(e) Date Aug. 13, 1980 PCT Filed Dec. 13, 1979 PCT Pub. No. WO80/01299 PCT Pub. Date Jun. 26, 1980.A cylinder lock and key assembly for effecting a mechanical and/or electromechanical locking with recodable tumbler devices and devices which influence or generate electrical currents is provided. The assembly includes a key, a cylinder housing, a lock cylinder and a keyway disposed in the flat rib of the lock cylinder housing which receives the rotatable cylinder. The key and the keyway are provided with cooperating, exchangeable and codeable mechanical devices, e.g., pins, for a mechanical locking and devices which generate or influence electrical currents, e.g., resistors, inductors, capacities or semiconductors, for effecting an electromechanical arresting or other signal triggering.

Description

The invention relates to a cylinder lock with a key for mechanical and / or electromechanical locking with recodable tumbler devices and devices that influence or generate electrical currents.

Several types of lock-lock and switching systems have become known which use a locking cylinder, in the special case a profile locking cylinder, as the basic element. The tumblers arranged in the locking cylinder are either brought into the release position purely mechanically by the comb profile of the inserted key or permanent magnets are arranged in the key, which correspond to permanent magnets on the tumblers and thereby trigger the opening or closing process. Arrangements have also become known in which contacts for a current flow or a signal transmission are closed or opened by the key comb or the key profile, the additional profiling of the key representing an increase in the possibility of variation.

There has also become known a locking device which can be actuated by means of a magnetic key and comprises a magazine housing for accommodating the switching parts, preferably reed switches, which are influenced by a plurality of permanent magnets arranged in the key when the key is inserted into the magazine and the actuation in accordance with the prescribed code effect the locking device. In the known device, the possibility is provided that the reed switches, which consist of break contacts and make contacts, as well as the permanent magnets arranged in the key, can be exchanged or replaced with one another. In this way, the key code can be set by the user himself without the aid of special tools and without knowledge of the coding by other people.

In the case of the locking, lock and switching systems that work according to the power cut method or control the signal transmission for electronic components, the code cannot be changed by the authorized user without special tools and professional intervention. Furthermore, since the standardized dimensions for profile locking cylinders can normally accommodate five, at most seven, tumblers actuated by the key profile, the possible variation for security systems is not sufficient. Finally, since the key channel in all previously known embodiments is arranged on a purely mechanical, electrical or electronic basis in the rotatable cylinder core, it is relatively easy to get directly to the bolt or the Riegl coupling by drilling the key channel and also to those that have become immobile due to the drilling Tumblers to open the object protected by the system.

In single-key systems, as far as is known, the same high-quality system is used several times for the objects to be locked, secured or switched, i.e. H. the system is selected according to the use case that requires the highest security level, although this would not be necessary for the other use cases. Intermediate and connecting doors that are equipped with a building, locking and alarm system must be equipped with the same high-quality system, which makes the system significantly more expensive.

In the locking devices actuated by means of permanent magnets, relatively voluminous and complicated housings are required for accommodating the individual parts, which cannot be used without special modification in lock arrangements equipped with normal cylinder locks.

US-A-2 024 497 relates to a lock with a key, in which the key is inserted into the locking channel, spring-loaded surfaces sensing the individual protrusions of the key and, when the key matching the lock is inserted, a rotation of the button 2 to release the lock allow (Fig. 3 and column 2, lines 10 to 17). A possibility of self-coding by the user without tools in conjunction with mechanical and electromechanical coding is not possible with the lock arrangement mentioned.

DE-A-20 00 433 relates to a locking device in which, among other things, the key is provided with a plurality of contact elements 100 to 110 which are connected to resistors R1 to R6. An adjustable resistor R5 is provided which is connected via a drive means to an adjusting disk IS which has a display marking IM which can be set to specific numerical values. With this arrangement, only the value of the resistor R5 can be set, but it is not possible to replace the individual resistors.

FR-A-2 388 966 also relates only to a mechanical lock, as already described in the aforementioned US-A-2024 497 and in which spring-loaded pins the notches scan the key 4. With this lock it is not possible to provide corresponding, interchangeable and codable mechanical and electrical elements that can be easily changed by the user.

DE-A-22 57 621 relates to a cylinder lock connected to an alarm device, in which a switch 13 is provided which is actuated by a locking slide. Here, too, cooperating, interchangeable and encodable mechanical and electrical currents influencing or generating devices are provided neither on the key (FIG. 9) nor on the lock channel (FIG. 1 and FIG. 3).

The present invention is therefore based on the object of a cylinder lock with a key for a mechanical, electromechanical or To create electronic actuation, which can be accommodated in the standard installation space of a conventional profile lock cylinder, and which can be recoded by the user himself with the greatest number of variations, has the greatest possible security against drilling and can also be produced inexpensively.

To achieve the object, a cylinder lock with a key for mechanical and / or electromechanical locking with recodable tumblers and devices that influence or generate electrical currents is proposed, the key channel for inserting the key being arranged in the flat web of the lock cylinder housing that accommodates the rotary cylinder , which is characterized by having interchangeable and codable mechanical devices, such as pins, for mechanical locking and devices that influence or generate electrical currents, such as resistors, inductors, capacitors or semiconductors, for electromechanical locking or any other signal triggering.

The cylinder lock according to the invention has the advantage that the key itself, which is now only inserted into the web of the cylinder housing and is no longer stressed by a torque, can accommodate interchangeable or interchangeable teeth on the upper comb for actuating the pins that are matched in length with these . Furthermore, a maximum of up to six interchangeable and / or interchangeable electrical currents influencing or generating devices, such as miniature block resistors, mt plug contacts can be arranged inside the key for standardized profile cylinders, these resistors both according to the systems working in the current locking process and as contacts for serve a circuit of purely electronic devices.

Instead of the miniature resistors, any other active and passive electrical components, such as inductors, capacitors or semiconductors, can of course also be used.

Due to the interchangeability of the cylinder lock with key according to the invention against conventional profile cylinder locks, it is possible to use different types of lock systems on doors, windows, cupboards, containers, gates, time switches etc. and switching systems for all types of central locking, alarm and signaling systems to operate only one key, whereby both the different lock and switch devices as well as the combined key can be recoded by the authorized user without the aid of special tools or devices, whereby this change in the mechanical, electrical or electronic part must be carried out individually or together.

Further refinements of the cylinder lock according to the invention with a key are shown in detail in the subclaims.

It should also be emphasized that when the cylinder lock according to the invention is transferred to a profile double cylinder, the couplings for the connection of the rotary cylinder and the bolt actuation are closed by an intermediate lever by inserting the key into the web of the cylinder housing.

The entire rotary cylinder assembly with coupling and locking drive is no longer required for the actuation of switchgear, and all that is required is a key housing with a smooth key channel and mating contacts embedded in it.

• 1. Es wird nur ein Schlüssel für unterschiedliche Schloss-, Schliess- und Schaltsysteme auf rein mechanischer und/oder elektrischer und/oder elektronischer Basis benötigt.
• 2. Man erhält eine grösste Variationszahl durch bis zu zehn mechanische Zuhaltungen mit je vier Paarungsvarianten in Verbindung mit
• 3. bis maximal sechs Steckwiderständen zu je zwanzig Widerstandgruppen, d.h. 3,6 Trillionen praktische nutzbare Variationen.
• 4. Es ist eine leichte Umcodierung durch denbefugten Benutzer sowohl der Zahn-Stift-Paarungen als auch der Vergleichswiderstände möglich.
• 5. Es ist eine leichte und bedienungsfreundliche Handhabung durch einfaches Einschieben des Schlüssels in einen feststehenden Schlüsselkanal und Einbringung der Kräfte für die Riegelbetätigung über einen Drehknopf oder Griff möglich.
• 6. Es ist eine grösstmöglichste Aufbruchsicherheit gegeben, da der Schlüsselkanal nicht im Drehzylinder angeordnet ist.

The advantages of the cylinder lock with key according to the invention are as follows.

• 1. Only one key is required for different lock, locking and switching systems on a purely mechanical and / or electrical and / or electronic basis.
• 2. You get a large number of variations through up to ten mechanical tumblers, each with four pairing variants in connection with
• 3. up to a maximum of six plug-in resistors, each with twenty resistance groups, ie 3.6 trillion usable variations.
• 4. The authorized user can easily recode both the tooth-pin pairings and the comparison resistors.
• 5. An easy and user-friendly handling is possible by simply inserting the key into a fixed key channel and applying the forces for the bolt actuation via a rotary knob or handle.
• 6. The greatest possible security against break-ins is given since the key channel is not arranged in the rotating cylinder.

The invention will be explained in more detail with the aid of the drawings, using exemplary embodiments.

• Fig. 1 einen Längsschnitt durch einen Profil-Doppelzylinder mit einem eingesteckten Schlüssel in vereinfachter Darstellung,
• Fig. 2 einen Querschnitt durch einen Profilzylinder mit Schnittebene in der Mitte vom Drehzylinder und eingestecktem Schlüssel in vereinfachter Darstellung,
• Fig. 3 einen Querschnitt durch eine Profil-Doppelzylinder mit Riegelbetätigung in vereinfachter Darstellung,
• Fig. 4 einen Längsschnitt durch eine Schalteinrichtung mit dem Schlüssel in vereinfachter Darstellung.
• Fig. 5 einen zur Umcodierung geöffneten Schlüssel in vereinfachter perspektivischer Darstellung.

Show in the drawings

• 1 is a longitudinal section through a profile double cylinder with an inserted key in a simplified representation,
• 2 shows a cross section through a profile cylinder with a cutting plane in the middle of the rotating cylinder and inserted key in a simplified representation,
• 3 shows a cross section through a profile double cylinder with bolt actuation in a simplified representation,
• Fig. 4 shows a longitudinal section through a switching device with the key in a simplified representation.
• Fig. 5 shows a key opened for transcoding in a simplified perspective view.

As can be seen from FIG. 1, the two rotary cylinders 3 are inserted into the lock cylinder housing in a smooth, continuous, longitudinal bore 2. In the web 4 of the locker cylinder housing 1, a key channel 5 is arranged on each side, the upper one being rotated through 90 °. Each rotary cylinder 3 carries a button or rotary handle 6 at the outer end and a slot coupling 7 at the inner end Rotary cylinder is provided with several transverse bores 8 into which the core pins 9, the helical compression springs 10 with their spring housings 11 are inserted. A hardened steel pin 12 serves as an additional anti-drilling device. A holding pin 13 screwed into the side (FIG. 2) fixes the axial position of the rotary cylinder 3 by being immersed in a circumferential annular groove 14.

Also projects into this annular groove 14, a guide pin 15, which is inserted in a bar 16, which receives the axially displaceable intermediate pins 17 in their bores, so that after unscrewing the retaining pin 13 (FIG. 2), the rotary cylinder 3 and the bar are pulled out together can.

The slot couplings 7 on the rotary cylinder 3 are then connected to the locking lug 19 in a non-positive and form-locking manner via a coupling piece 18 when they are moved by the inserted key 20 by means of the engagement lever 21 in the direction of the locking lug 19 and engage therein. This ensures that only the rotary cylinder 3 receives a coupling to the locking lug 19, in which a key 20 would be fully inserted into the key channel 5.

The key 20 itself, designed as a flat key in the exemplary embodiment, initially accommodates the miniature resistors 22 in its hollow key body, which are inserted into a carrier strip 24 with contact pins 23 and protrude somewhat from the carrier strip. The counter contacts 25 are placed on contact springs 26, which are embedded insulated in housing grooves 27.

The contact springs also serve as conductor tracks and ensure reliable power transmission.

On the upper comb 28 (FIG. 5) of the key body 20, a further receiving strip 29 is inserted, which receives a number of interchangeable teeth 30 corresponding to the tumblers, the tooth height of which is matched to the intermediate pins 17 corresponding to them, that is, a tooth that belongs together. Form pin pair. The plug screw 31 secures the connection between the receiving bar 29 and the key body 20.

FIG. 2 shows a cross section through the subject of the invention shown as a possible embodiment in FIG. 1 with the cutting plane through the rotary cylinder 3 and the inserted key 20 exactly through a tooth 30 - intermediate pin 17 - pairing. The length of the tooth 30 and the intermediate pin 17 is coordinated such that the core pin 9 displaced by the intermediate pin becomes flush with the outside diameter of the rotating cylinder and thus releases the rotation of the rotating cylinder.

At the same time, however, the contact pins 23 also meet in the lower part of the key 20 with the spring-loaded mating contacts 25, so that an electrical voltage can be applied to two of the contact springs 26, which are embedded in the grooves 27, in which case a contact is made. current flows from the miniature resistor 22 and is used for further control purposes on a purely electrical or electronic basis.

By changing the miniature resistors 22 or swapping, the range of variation in the electrical part is obtained in a similar way as is done by swapping or exchanging the tooth-pin pairing in the mechanical part.

Fig. 3 also shows a cross section through a possible embodiment of the subject matter of FIG. 1 with the sectional plane in the coupling part. In this illustration it is clear that the engagement lever 21 is pivotally mounted about the pin 32. The engagement lever 21 is displaced at its lower end by the key body 20, the coupling piece 18 engaging in the corresponding groove of the locking lug 19. The locking lug is shown pivoted through 90 °.

Fig. 4 shows a longitudinal section through a switching device in a simplified, scale representation, which is actuated by the key 20.

The switch housing 33 can be formally adapted to the respective intended use, it only has to have a key channel 5, in the base of which recesses are arranged, through which the spring-loaded counter-contacts 26 come into contact with the contact pins 23 of the miniature resistors 22 when the key 20 is inserted.

The interchangeable teeth 30 in the receiving strip 29 of the key 20 have no function here.

5 shows a perspective view of a key disassembled for the purpose of recoding.

After unscrewing the stud 31 from the key body 20, the carrier strip 24 with the inserted miniature resistors 22 can be pulled out of the key body 20, so that the positions of the miniature resistors 22 can be replaced by those with different resistance values.

The strip 16 with the intermediate pins 17 can also be pulled out of the lock cylinder housing 1, so that the position of the intermediate pins can be interchanged or replaced by those of a different length. It should only be ensured that the teeth 30 in the key 20 must also be replaced at the same time, in such a way that the corresponding length is adjusted.

It should also be emphasized that instead of the resistors 22, other electrical or electronic components can also be used. In this way, semiconductors, integrated circuits, capacitors or inductors can also be used, which are provided with corresponding contact pins and which are connected to the electrical and electronic components connected via lines.

Claims (12)

1. Cylinder lock with key for mechanical and/or electromechanical latching with re-codable tumbler devices and devices which influence or produce electrical currents, in which the key channel (5) for inserting the key (20) is situated in the flat crosspiece (4) of the lock cylinder casing (1) which receives the turning cylinder (3), characterised in that the key (20) and key channel (5) have interacting, interchangeable and codable mechnical devices, such as pins, for mechanical latching and devices which influence or produce electrical currents, such as resistances (22), inductances, capacitances or semi-conductors, for electromechanical latching or other desired signal triggering.

2. Cylinder lock with key according to Claim 1, characterised in that the turning cylinder having a rotary button (6) at its outer end for activating the locking stud (19) has several transverse bores (8) in which core pins (9) with springs (10) are located, which work in conjunction with teeth (30) in the key via interchangeable connecting pins to rotate the revolving cylinder (3).

3. Cylinder lock with key according to Claims 1 and 2, characterised in that a coupling piece (18) is disposed between the turning cylindre (3) and the locking stud (19), which produces a force-locking and form-locking connection between the turning cylinder (3) and the locking stud (19) via an engaging lever (21) only after the key (20) is inserted.

4. Cylinder lock with key according to Claims 1 to 3, characterised in that the connecting pins (17) are situated in a shaft (16), which may be removed together with the turning cylinder (3) form the lock cylinder casing (1) after screwing out a retaining pin (13).

5. Cylinder lock with key according to Claims 1 to 4, characterised in that the teeth (30) of the key (20) which cooperate with the interchangeable connecting pins (17) are inserted replaceably and interchangeably into a receiving shaft (29), which is situated in the upper cam (28) of the key (20) and is retained and fixed in the key (20) by a stud screw (31).

6. Cylinder lock with key according to one or more of the preceding Claims, characterised in that the electrical devices consist of miniature resistances (22) arranged in the hollow casing of the key (20), which are interchangeably and/or replaceably secured on a carrying shaft (24) and which are inserted together with the latter in the casing of the key (20) and are retainded and fixed by the stud screw (31).

7. Cylinder lock with key according to Claim 6, characterised in that the miniature resistances (22) have contact pins (23) which project somewhat beyond the carrying shaft (24) and which cooperate with opposed contacts (25) which are solid- cased, resilient and insulatedly retained in slots.

8. Cylinder lock with key according to one or more of Claims 1 to 5, characterised in that the electrical devices consist of inductances, capacitances or semi-conductors which are interchangeably and/or replaceably inserted in the casing of the key (20) on a carrier shaft (24).

9. Cylinder lock with key according to one or more of the preceding Claims, characterised in that a hardened steel pin (12) is located in the turning cylinder (3) as an additional security against drilling out.

10. Cylinder lock with key according to one or more of the preceding Claims, characterised in that the rotary button (6) is made of hard metal or is provided with a hard metal or hardened steel cap.

11. Cylinder lock with key according to one or more of the preceding Claims, charcterised in that the interchangeable teeth (30), the connecting pins (17) and/or the electrical devices (22) are suitably marked to identify the code.

12. Cylinder lock with key according to one or more of the preceding claims, characterised in that an electrical switch for triggering any desired control signals is provided in the key channel, preferably at the front-face end.

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