EP0882858B1 - Lock cylinder with electromagnetically actuated tumbler pin - Google Patents

Description

The invention relates to a lock cylinder according to Generic term of claim 1.

A generic locking cylinder is from DE 37 12 300 A1. The profile lock cylinder there in addition to mechanical tumbler pins Supplementary tumbler pin to be operated electromagnetically. This supplementary tumbler pen, the operator of it Electromagnet and armature are there as an assembly summarized and can be in a sideways on Flange section of the locking cylinder arranged recess be plugged in. The insertion takes place axially. For this purpose, the wall of the recess has a dovetail shape Undercut. The insertion takes place from the lockable.

EP 0 303 849 also shows a locking cylinder with an electromagnetically actuated locking element. Here the electromagnet is on the flange area of the Encapsulated locking cylinder. An antenna sits separately on the face of the flange area.

A similar arrangement is shown in EP 0 324 096.

Another locking cylinder is from the published patent application 41 26 160 known. The well-known lock cylinder has interactions with the profile of the key, Pin tumblers consisting of core pin and housing pin on. The tumbler pins spring-loaded towards the housing are arranged by the notches in the key, so that when you insert the correct key the separating joints between the core pin and the housing pin the core joint of the cylinder core are aligned. In addition to this is purely mechanical coding of the key electronic coding is provided. To do this electronically activated elements of the key together with a transmitting / receiving device, which at correct electronic key coding an additional one Locking pin, which is in the cylinder core protrudes, releases.

Based on the prior art mentioned at the beginning is the object of the invention, a generic Locking cylinder manufacturing technology too improve.

The problem is solved by the one specified in claim 1 Invention. The subclaims are advantageous Developments of the invention.

According to the invention, it is provided that the electromagnet, a plunger anchor assigned to the electromagnet and the Supply line are integrated in an assembly. This The assembly is intended according to the invention in a recess of the Flange area of a profile locking cylinder in radial Direction can be plugged in so that tearing out this assembly in the axial direction by accordingly behind projections is prevented. The assembly can be attached using screws and / or mounting pins Be attached to the cylinder housing. The outer wall of the The assembly should be the recess for the profile shape of the Complete the locking cylinder. In particular, the longitudinal narrow edge of the flange section from the carrier of the Assembly are trained. The assembly should also wear a sensor with a magnetic Housing pin interacts. The sensor can be designed as a magnetically activatable switch and when inserting the assembly into the profile locking cylinder be inserted into an opening. The opening can be designed as a bore which is parallel to the Housing pin bore runs. The assembly is preferred formed by a support on which one Antenna and the electromagnet are arranged together with plunger are. The submersible anchor can have a guide slot have, in which a projection in the longitudinal side opening the insertable pin protrudes. As a result, the plunger anchor is non-rotatably mounted. By the hub of the Locking pin can be maximized. In a special one Development of the invention, which is also independent Has character is the longitudinal narrow side of the profile cylinder especially the carrier with a radial protruding projection. This lead serves as a so-called pull protection and works with a door ' shield together, which has a profile-adapted opening has, and with the opening on the lock cylinder is pushed. The opening from the stopper is closed, is preferably aligned with the housing bore for the magnetically displaceable pen. As a result of the integration of the locking pin in the pin tumbler can cover the entire length of the insertion area of the key for mechanical coding. Preferably, the locking pin is in a cavity of the Housing pin arranged the tumbler. It is It is advantageous if the locking pin in the Key insertion opening farthest away Tumbler is arranged. The possibility of manipulation is thus minimized. It is advantageous if the locking pin guided coaxially in the housing pin at one end in the locking position in an axial blind hole of the core pin protrudes. The additional locking pin can be cushioned his. The spring of the locking pin can be used at the same time the cushioning of the housing pin of the assigned Be a tumbler. The locking pin preferably has a widened foot on which said Spring supported. The foot of the locking pin acts preferentially with one parallel to the axis direction of the cylinder core storable armature of an electromagnet together. The armature can by current applied to the Electromagnets or an equivalent actuator be shifted in the axial direction. The anchor is preferably cylindrically symmetrical and has a large diameter and a small diameter area. The cross section of the armature can also be one of the cylindrical one have a different shape Increased stroke of the locking pin possible. The two Different diameter ranges can be a frustoconical area separated his. By axially displacing the armature, the Locking pin shifted in the transverse direction to the cylinder axis so that its front end is shifted into the cylinder core is used to achieve the blocking effect, or is shifted out of the cylinder core to achieve the release position. The electromagnet is preferred arranged in a sleeve, which in the flange area of the profile cylinder is arranged. Thereby forms the sleeve also the bottom of the housing bores in which the pin tumblers lie. This novel closure of the pin hole has its own Importance. Instead of the axially insertable sleeve a bolt or the like made of solid material is also conceivable. The housing section with which the holes are closed, then forms a support surface at the same time for the pen springs. Flange face an antenna of a transmitter is preferably provided, which is arranged with one in the key's bowl Transponders interacts. In the area of the transmitter can also be a device, for example a Contact or the like can be provided by for example, coded actuation of an emergency opening Castle allowed. The emergency opening can also be mechanical respectively. The transmitter, which is connected to the in the Reide des Key transponder arranged interact is preferred by relocating the key the tumbler pin shifted first during the insertion movement switched on. The face of the Locking cylinder closest housing pin takes over activation by switching. He can for this purpose have a magnet which is connected to a Magnetic switch cooperates, which in the sleeve is arranged. When inserting the key this pin tumbler first shifted down. The The magnet approaches the magnetic switch then that the transmitter starts up and signals transmits to the transponder. The signals can be modulated onto a carrier frequency. The carrier frequency can also supply energy at the same time for the transponder. That from the transponder received signal, which is also only from an electromagnetic carrier for energy transmission can exist, causes the transmission in the transponder a response signal to the lock cylinder. This The signal then carries the coding. The one in the flange area the antenna arranged lock cylinder receives the signal sent by the transponder and forwards it to a electronic circuit further, which preferably outside of the profile cylinder is arranged. There it will signal received by the transponder to the correct one Coding checked. With correct coding the Electromagnet activated so that the locking pin is released becomes. The latter can move into the open position relocate. When the key is removed, the Locking pin moved back to the locked position. The power supply for the additional electronic fuse can be formed by batteries or accumulators his. The batteries and the accumulators can just like the electronic control circuit in a cuff-side pocket of the door can be inserted. Control electronics and battery holder are then behind the cuff. For access to the control electronics or to get to the battery compartment, the Cuff be provided with a flap. This solution is especially advantageous because of the control electronics can only be accessed when the door is open can. When the door is closed there are also cuff-side panels Adjustment elements, such as switches, for setting the lock combination is not accessible. The outside of the lock cylinder arranged control electronics is connected to the profile lock cylinder via a cable. It can be guided in a steel protection tube his. The cable preferably emerges from an area which between the two cores of a double locking cylinder is located out of the cylinder. So that Cable when inserting the profile locking cylinder in a mortise lock is not sheared, the Bottom of the lock cylinder a groove in which the cable can be inserted when the lock cylinder is inserted into the mortise lock. The cable then runs over the outer castle ceiling to the faceplate Subject. Access to the electronic circuit can preferably only in the lock cylinder inserted programming key possible his. Without such activation there is no authorization given the coding or the like in the Change circuit.

Fig. 1

ein erfindungsgemäßes Schloß, teilweise aufgebrochen, im Querschnitt,

Fig. 2

eine schnittgemäße Linie II-II in Fig. 1,

Fig. 3

einen zum Schloß gemäß Fig. 1 passenden Schlüssel,

Fig. 4

eine Darstellung gemäß Fig. 1 bei teilweise eingeschobenem Schlüssel,

Fig. 5

einen Schnitt gemäß der Linie V-V in Fig. 4,

Fig. 6

einen Profilzylinder bei vollständig eingeschobenem Schlüssel und richtiger elektronisch lesbarer Codierung,

Fig. 7

einen Schnitt gemäß der Linie VII-VII,

Fig. 8

einen Schnitt gemäß der Linie VIII-VIII,

Fig. 9

eine Darstellung gemäß Fig. 6 bei vollständig eingeschobenem Schlüssel aber falscher elektronisch lesbarer Codierung,

Fig. 10

ein Einsteckschloß mit eingesetztem Profilzylinder in Ansicht,

Fig. 11

ein stulpseitiges Einsteckfach zur Aufnahme der elektronischen Schaltung und der Batterien,

Fig. 12

eine Seitenansicht von Profilzylinder und Einsteckfach,

Fig. 13

ein zweites Ausführungsbeispiel der Erfindung, teils geschnitten,

Fig. 14

einen Schnitt gemäß der Linie XIV-XIV in Fig. 13,

Fig. 15

einen Schnitt gemäß der Linie XV-XV in Fig. 14,

Fig. 16

eine Darstellung gemäß Fig. 13 bei eingestecktem passenden Schlüssel,

Fig. 17

einen Schnitt gemäß der Linie XVII-XVII in Fig. 16, und

Fig. 18

eine Darstellung gemäß Fig. 16 bei nicht eingeschobenem Bausatz.

Embodiments of the invention are explained below with reference to the accompanying drawings. It shows:

Fig. 1

a lock according to the invention, partially broken open, in cross section,

Fig. 2

a sectional line II-II in Fig. 1,

Fig. 3

a key suitable for the lock according to FIG. 1,

Fig. 4

1 with the key partially inserted,

Fig. 5

4 shows a section along the line VV in FIG. 4,

Fig. 6

a profile cylinder with the key fully inserted and the correct, electronically readable coding,

Fig. 7

a section along the line VII-VII,

Fig. 8

a section along the line VIII-VIII,

Fig. 9

6 with a fully inserted key but incorrect electronically readable coding,

Fig. 10

a mortise lock with inserted profile cylinder in view,

Fig. 11

a cuff-side pocket to hold the electronic circuit and batteries,

Fig. 12

a side view of profile cylinder and pocket,

Fig. 13

a second embodiment of the invention, partly cut,

Fig. 14

12 shows a section along the line XIV-XIV in FIG. 13,

Fig. 15

14 shows a section along the line XV-XV in FIG. 14,

Fig. 16

13 with a suitable key inserted,

Fig. 17

a section along the line XVII-XVII in Fig. 16, and

Fig. 18

16 with the kit not inserted.

The profile cylinder according to the invention has a housing 1 on, in which a closing member 2 is arranged. At the Embodiment is a double lock cylinder with two opposite cylinder cores 20. One of the cores 20 is electromagnetic actuatable locking pin 14 equipped. In the cylinder core 20 are in transverse bores core pins 9, which of profiles 6 of a key 4 classified become. The profiles 6 consist of notches Lock bit 5.

The arranged in the housing, aligned with the core pins 9 Housing pins 10 lie in bores 25. The Holes are closed by the outer wall of one Sleeve 24, which is parallel to the axis of the core 20 in a corresponding opening of the profile section of the Profile cylinder is inserted. Support the springs 26 consequently on the sleeve wall.

In the exemplary embodiment there are a total of six pin tumblers provided, which are in a row. In the Seen the insertion direction first pin tumbler 9, 10 actuates a switch for a transmitter. For this the housing pin 10 has on the bottom of the bore 25 facing end face a magnet 27, which with a magnetic switch arranged in the sleeve (not shown) cooperates. The sleeve points for this purpose an opening 23 through which the magnetic Can achieve excitation of the magnetic switch.

The last pin tumbler in the direction of insertion of the key 1 11, 12 is with an additional locking pin 14 Mistake. The core pin has a blind hole for this purpose on which with a through hole of the housing pin 12 is aligned.

In the bore made coaxially to the housing pin 12 is the additional pin 14. The additional pin 14 has a diameter-enlarged foot 15. The Diameter of the foot 15 corresponds to the diameter of the Housing pin 10. The diameter of the additional pin 14 is less than the diameter of the pin hole. The Housing foot 15 is by means of a pin 14 surrounding Spring 13 cushioned relative to the housing pin 10, so that the pin tumbler 10, 11 pressed in the core direction becomes. The downward rounded foot 15 of the pin 14 rests on an armature 17 of an electromagnet 18. The Armature 17 has a large diameter area 17 'and a small diameter area 17 ''. The areas 17 ', 17' 'are characterized by a truncated cone-shaped bevel separated from each other. The anchor 17 is through Actuation of the electromagnet 18 displaceable in the axial direction.

The electromagnet 18 is arranged in said sleeve 24. At the end of the sleeve, to the front of the profile of the Projecting locking cylinder, an antenna 19 is arranged, which with one in the reid 7 of the key 8 arranged transponders cooperates. In addition an emergency opening 22 is provided, which is manual or is separately electrically operated to the electromagnet or to operate the anchor if there is a fault the electrical control is present or the batteries are empty.

One approximately in the middle of the profile area of the cylinder outstanding connection cable 29 connects the antenna 19 and the electromagnet 18 with control electronics 39 and a transmitting part 38 Cable 29 at the end of a connector 28. The transmitter part 38, the control electronics 39 and a battery compartment 40 are assigned to a separate housing 33, which below or above the mortise lock 37 behind the cuff is placed in a slot in the door is. The cuff 31 can be covered with a flap 32 become. The battery compartment can be opened by opening the flap 32 40 can be removed.

So that the cable when inserting the profile locking cylinder in a mortise lock 37 does not shear is in outer jacket area of the lock cylinder housing 1 a groove 30 is provided, in which the cable 29 in some areas can be inserted.

This results in the following functionality:
In the state shown in Fig. 1, the tumbler pins 9, 10, 11, 12 are not arranged. The lock cylinder core cannot be rotated. When the key 4 is inserted with its locking bit 5 into the insertion opening 3 of the locking cylinder, the first pin tumbler 9, 10 is first shifted downward. Along with this downward displacement, the magnet 27 of the sleeve 24 or the bottom of the bore is approached. A magnetic switch arranged there signals the control electronics 39 that a key is to be inserted. The control electronics 39 cause the transmitter 38 to emit an electromagnetic signal via the antenna 19. This electromagnetic signal is picked up by the transponder 8 of the key 4. The transponder 8 absorbs energy by receiving the electromagnetic wave. The energy is required for the transponder 8 to send an electromagnetically coded signal back to the antenna. This signal, which is picked up by the antenna 19, is evaluated in the control electronics 39. If this signal is a correct code, the electromagnet 18 is actuated. The anchor 17 is withdrawn.

The anchor is in the position shown in FIG. 4 17 still in the advanced position. The foot 15 of the Lock pin 14 rests on the large diameter section 17 'of the armature 17, so that the end face 16' the locking end 16 of the locking pin 14 above the parting line 21 of the cylinder core 20 lies.

In the complete insertion position shown in FIG. 6 of the key, the parting lines are aligned the housing pins 10, 12 and core pins 9, 11 with the parting line 21. In this position, as mentioned, the armature 17 is withdrawn so that the foot 15 of the locking pin 14 on the small diameter area 17 '' of the anchor 17 rests. The locking pin 14 has thus shifted downward so that the front edge 16 'of Locking 16 is below the parting line 21. In in this position the key can be turned and the Operate the profile cylinder.

9 is in the closed position it is a key with correct mechanical Coding, but with incorrect electronic coding. The signal emitted by the transponder 8 is not that right one. In this case there is no relocation of the armature 17, so that the foot 15 of the locking pin 14 on the larger diameter area 17 'of the armature 17 rests. The locking end 16 projects with the front edge 16 ' over the parting line 21 into the area of the core 20 inside. The locking pin prevents in this position a rotation of the lock cylinder. The lock cylinder can not be despite correct mechanical coding rotate.

That in the area of the cuff in a parallel to the mortise lock opening in a separate opening on the narrow side the door insertable compartment 33 is with a cover 32 provided. The cover 32 runs parallel to the cuff 31 and is hinged to the cuff. 11 are Insert openings 36 are provided for batteries. It is in addition, a display device 34 is provided with which the coding or other lock parameters can be displayed are. By means of adjusting buttons 35, the Set electronic locking parameters. With the Buttons 35 can in particular also the coding of the castle change. The display assigned to the cuff 34 shows the current or changed lock code on.

The embodiment shown in FIGS. 13 to 18 a profile lock cylinder works essentially just like the aforementioned embodiment. That is why they are similar or function here Provide parts with the same reference numbers.

In this embodiment, a carrier 50 is provided, on which the magnetic coil 18, the antenna 19, the plunger anchor 17 and the feed line 47 are arranged. The whole forms an assembly 41.

The antenna 19 is arranged in a plastic cap 56 and lies on the front of the profile locking cylinder, or the carrier 50. The assembly 41 is in one radial recess 55 of the profile lock cylinder housing 1 insertable. The carrier or the electromagnet forms 18 the bottom of the housing bores, in which the housing pins 10 are movable and on which support the springs. In the joint between the recess 55 and the adjacent wall of assembly 41 is the supply line 47 out. The supply line is a flexible strip line trained and extends to the antenna 19th The carrier 50, which is made of metal, forms Pin extensions 49, which in corresponding holes of the housing can be inserted in the radial direction. The housing 1 forms a parallel to the housing pin bores running bore in which an internal thread is cut in which a fastening screw for the assembly 41 can be screwed in. In parallel extension, laterally offset to the first Housing pin has the lock cylinder housing 1 Bore 57 in which a sensor 51 protrudes. The sensor 51 is via contacts 53 with a flag of the supply line connected. The sensor is below the housing pin, so that when the key is not inserted Housing pin is outside the sensor range. At the sensor 51 is a magnetically activatable one Sensor with the magnetic first housing pin 52 interacts as soon as a key is inserted and pin 52 down into the sensor area is shifted.

The plunger armature emerging axially from the electromagnet 18 17 has a longitudinal groove 44 on its lower side on. A projection of a plug engages in this longitudinal groove 45. As a result, the plunger anchor 17 is non-rotatably mounted. The flat 42 of the plunger 17 can therefore have a sufficiently large spacing for flattening 43, which leads over an inclined step into the flattened section 42 transforms. By axially moving the plunger 17 the locking pin 14 is shifted into the locking position, in this position the locking pin 14 is flattened 43 acted upon.

The plug 45 is inserted into an opening in the carrier 50 and leaves between itself and one neighboring arranged projection 46 has a gap 48 through which the supply line emerges. The projection 46 is in the assembled condition on the long side of the Profile lock cylinder and thus forms a pull guard. The projection 46 supports itself to develop it Protection against a hardware plate screwed on from the outside. The assembly 41 complements the recess 55 to the profile cylinder shape, in particular the longitudinal narrow side of the flange section formed by the carrier 50. In that the carrier 50 in the radial direction Can be inserted into the flange area of the locking cylinder is a distance from the lock cylinder housing 1 only possible with the locking cylinder removed. The abstract all the additional electromagnetic guard locking relevant components in an assembly simplified the assembly. It is particularly advantageous if the plug 45 closes an opening which is in alignment to the electromagnetically actuated locking pin 14 is arranged.

The in the above description, the drawing and Features of the invention disclosed in the claims can both individually and in any combination important for the realization of the invention his. All the features disclosed are essential to the invention. In the disclosure of the registration is hereby also the disclosure content of the associated / attached Priority documents (copy of the pre-registration) in full involved.

Claims (7)

1. Lock cylinder with a cylinder core rotationally locked by at least one key profile-controlled pin tumbler (10, 11) comprising a core pin (11) and a housing pin (12) spring-mounted in the housing, and by an electromagnetically operated locking pin (14), wherein the electromagnet (18), a solenoid plunger (17) associated with the electromagnet and a supply line (47) are associated with an assembly (41) which includes a support (50) and which can be inserted in a recess (55) of the flange region of the profile lock cylinder, characterised in that the support (50), which can be inserted in a radial recess (55), includes an aerial located at the end of the profile cylinder and forms the longitudinal narrow side of the flange section.
2. Lock cylinder according to claim 1, characterised in that the assembly includes a support (50) which can be connected to the flange section by radial pins (49) and of which the outer wall complements the'recess (55) to form the profile shape.
3. Lock cylinder according to any of the preceding claims, characterised by a sensor (51) which is mounted in a parallel bore (57) to the housing pin bores and which cooperates with a magnetic housing pin (52).
4. Lock cylinder according to any of the preceding claims, characterised in that the solenoid plunger (17), which forms a step, comprises a guide slot (44) into which extends a projection of a plug (45) which can be inserted in a longitudinal narrow side opening of the support (50).
5. Lock cylinder according to any of the preceding claims, characterised in that the supply line (47), which is constructed as a flexible strip conductor, exits through a gap (48) in the region of the support (50) facing away from the end of the profile lock cylinder.
6. Lock cylinder according to claim 5, characterised in that the gap is located adjacent to a projection (46) mounted on the longitudinal narrow side of the support and is covered by the latter on the escutcheon side of the door.
7. Lock cylinder according to either of claims 5 to 6, characterised in that the plug closes an opening which is arranged in line with the housing bore receiving the electromagnetically displaceable pin (14), and which is in particular associated with the support (50).

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