EP0709533B1 - Lock cylinder with electromagnetically actuated tumbler pin - Google Patents

Abstract

The lock cylinder has a rotary lock cylinder with at least one pin restraint (10,11) controlled by an inserted key profile and having a cylinder core pin (11) and a housing pin (12) and at least one electro-magnetically-operated locking pin (14). The latter is incorporated in the pin restraint and fits into a bore of the housing pin. The electro-magnetically-operated locking pin is pref. coaxial to the housing pin with its locking end (16) fitting into an axial blind bore (11') of the cylinder core pin.

Description

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

Such a lock cylinder is from the disclosure step 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 with the right key the joints between Core pin and housing pin with the core joint of the Align cylinder core. In addition to this purely mechanical Key coding is electronic Coding provided. This can be activated Elements of the key together with one Sending / receiving device, which with correct electronic Key coding an additional locking pin, which protrudes in the cylinder core, releases. At the known solution is the locking pin in parallel the pin tumblers. The arrangement is space-consuming. Either a longer locking cylinder must be provided be or on a mechanically codable pen, guard locking to be dispensed with.

Based on this state of the art; invention the task of a generic lock cylinder Advantageous further training.

The problem is solved by the one specified in claim 1 Invention.

Advantageous further developments of the Invention.

According to the embodiment of the invention Space requirement of the additional locking pin significantly minimized been. As a result of the integration of the locking pin The entire length of the insertion area can be in the pin tumbler of the key for mechanical coding be used. The locking pin is preferably in one Hollow the housing pin of the pin tumbler arranged. It is advantageous if the locking pin is in most distant from the key insertion opening lying guard locking is arranged. The possibility of manipulation is thus minimized. It is an advantage if the locking pin is guided coaxially in the housing pin at one end in the blocking position in an axial blind hole of the core pin protrudes. The additional locking pin can be cushioned. The spring of the locking pin can '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 of the cylinder core storable armature of an electromagnet together. The armature can be energized by the electromagnet or an equivalent actuator be shifted in the axial direction. The anchor is preferred cylindrical symmetry and has a large diameter and a small diameter area. The anchor can also have a cross-section different from the cylindrical one Have shape. This is an increase in stroke of the locking pin possible. The two different diameters Areas can be frustoconical Be separated from each other. Through axial displacement the anchor can then the locking pin in the transverse direction be shifted to the cylinder axis so that be Front end is moved into the cylinder core for Achieving the locking effect, or from the cylinder core is moved out to achieve the release position. The electromagnet is preferably in a sleeve arranged, which in the flange area of the profile cylinder is arranged. The sleeve also forms the Bottom of the housing bores in which the pin tumblers inlay. This novel closure of the Pin drilling has its own meaning. Instead of axially insertable. Sleeve is also a bolt or the like conceivable from solid material. The housing section, with which the holes are closed, then forms at the same time a support surface for the pin springs. An antenna is preferably on the flange end Transmitter provided, which with a in the Reide of Key arranged transponders cooperates. in the Area of the transmitter can also be a device for example, a contact or the like be the one by, for example, coded actuation Emergency opening of the lock allowed. The emergency opening can also done mechanically. The transmitter, whichever with the in the key of the key arranged transponder interact is preferred by relocating the from First move the key when inserting Tumbler pin switched on. The face of the Locking cylinder closest housing pin takes over activation by switching. He does this have a magnet with a magnetic switch interacts, which is arranged in the sleeve is. When the key is inserted, this pin tumbler becomes first shifted down. The approximation of the Magnets on the magnetic switch then cause the Transmitter starts up and signals to the transponder transmits. The signals can be on a Carrier frequency be modulated. The carrier frequency can also provide energy for represent the transponder. The one received by the transponder Signal, which also consists only of an electromagnetic Carrier for energy transmission can exist, causes a response signal to be transmitted in the transponder to the lock cylinder. This signal then carries the coding. The in the flange area of the locking cylinder arranged antenna receives that from the transponder emitted signal and sends it to an electronic Circuit further, which is preferably outside the profile cylinder is arranged. There it will be from the transponder received signal checked for correct coding. If the coding is correct, the electromagnet is activated, so that the locking pin is released. The latter can shift into the open position. When pulling out of the key, the locking pin is back in the Locked position shifted. The power supply for the additional electronic fuse can be powered by batteries or accumulators can be formed. The batteries and the Accumulators can be used just like the electronic control circuit inserted in a cuff-side pocket in the door become. Control electronics and battery holder then lie behind the cuff. To access Control electronics or battery compartment, the cuff can be provided with a flap. This Solution is particularly advantageous because on the Control electronics only accessed when the door is open can be. When the door is closed, they are also cuffed arranged adjusting 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 be. The cable preferably emerges from an area which between the two cores of a double lock cylinder is located out of the cylinder. So that Cable when inserting the profile locking cylinder into one Mortise lock is not sheared, has the bottom the lock cylinder a groove in which the Cable can be inserted when the lock cylinder is in the mortise lock is inserted. The cable runs then over the outer castle ceiling to the cuff side Subject. Access to the electronic circuit can preferably only with one inserted in the lock cylinder Programming key may be possible. Without one no such authorization is given, to change the coding or the like in the circuit.

An independent idea of the invention lies in that the electromagnet, the electromagnet assigned immersion anchor and the supply line in the assembly are integrated. This assembly is intended according to the invention in a recess in the flange area Profile lock cylinder can be inserted. Should be preferred the assembly can be inserted in the radial direction, so that tearing out this assembly in the axial direction hindered by correspondingly gripped projections is. The assembly can be screwed and / or Fastening pins to be attached to the cylinder housing. The outer wall of the module should be the recess for Complete the profile shape of the locking cylinder. Especially for example, the longitudinal narrow edge of the flange section be trained by the assembly. The Module should also carry a sensor, which interacts with a magnetic housing pin. Of the Sensor can be used as a magnetically activated switch be trained and when inserting the module in the profile locking cylinder can be inserted into an opening. The opening can be designed as a bore, which runs parallel to the housing pin bore. Prefers the assembly is formed by a carrier on which is an antenna and the electromagnet and plunger are arranged. The submersible anchor can have a guide slot have in which a protrusion one in the Longitudinal opening of the carrier insertable pin protrudes. As a result, the plunger anchor is non-rotatably mounted. Through appropriate gradations, the stroke of the Locking pin can be maximized. In a special training of the invention, which is also independent in character has, is the longitudinal narrow side of the profile cylinder in particular the carrier with a radially protruding Provide a head start. This lead serves as a so-called Anti-pull protection and interacts with a door sign, which has a profile-adapted opening, and with the opening is pushed over the lock cylinder. The Opening, which is closed by the plug, is preferably aligned with the housing bore for the magnetic relocatable pen.

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,

Pig. 8

einen Schnitt gemäß der Linie VIII-VIII,

Fig. 9

eine Darstellung qemäß 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 fully inserted key and correct, electronically readable coding,

Fig. 7

a section along the line VII-VII,

Pig. 8th

a section along the line VIII-VIII,

Fig. 9

6 shows a representation according to FIG. 6 with the key fully inserted but the wrong 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 one Sleeve 24, which parallel to the axis of the core 20 in a corresponding opening of the profile section of the profile cylinder is plugged in. The springs 26 are supported 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. For this purpose, the core pin has a blind hole, which with a through hole of the housing pin 12 is aligned.

In the bore made coaxially to the housing pin 12 the additional pin 14 is inserted an enlarged foot 15. The Dutch knife 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 case base 15 is by means of a spring surrounding the pin 14 13 cushioned relative to the housing pin 10, so that the Pin tumbler 10, 11 is pressed in the core direction. Of the down rounded foot 15 of the pin 14 rests an armature 17 of an electromagnet 18. The armature 17 has a large diameter area 17 'and one small diameter area 17 ''. The areas 17 ', 17 '' are characterized by a truncated cone-shaped bevel separated from each other. The armature 17 is actuated of the electromagnet 18 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 a key 8 arranged transponders cooperates. In addition is an emergency opening 22 is provided, which is manual or separate is electrically operated to the electromagnet or to operate the anchor if there is a fault in the electrical Control is present or the batteries are empty.

One approximately in the middle of the profile area of the cylinder outstanding connecting cable 29 connects the antenna 19 and the electromagnet 18 with control electronics 39 and a transmitting part 38. For this purpose, the cable 29 at the end of a connector 28. The transmitter 38, the Control electronics 39 and a battery compartment 40 are assigned a separate housing 33, which below or above the mortise lock 37 behind the Cuff is arranged in a slot in the door. The Cuff 31 can be covered with a flap 32. The battery compartment 40 can be opened by opening the flap 32 be taken out.

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 not classified. The lock cylinder core is not rotatable. When inserting the Key 4 with his lock bit 5 in the insertion opening 3 of the lock cylinder is the first Pin tumbler 9, 10 shifted down. Accompanying with this downward shift, the magnet 27 is the Sleeve 24 or the bottom of the bore approximated. One there The arranged magnetic switch signals the control electronics 39 that a key can be inserted should. The control electronics 39 cause the transmitter 38 an electromagnetic signal via the antenna 19 to broadcast. This electromagnetic signal is from the Transponder 8 of the key 4 added. The transponder 8 picks up by receiving the electromagnetic Wave energy up. The energy is needed for that the transponder 8 an electromagnetically coded signal sends back to the antenna. This from the antenna 19 Collected signal is in the control electronics 39 evaluated. If this signal is one correct code, the electromagnet 18 is actuated. The anchor 17 is withdrawn.

The armature 17 is in the position shown in FIG. 4 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' of the locking end 16 of the locking pin 14 above the parting line 21st of the cylinder core 20 is.

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 Trennfuge 21. In this position, as mentioned, the Anchor 17 retracted 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 descended displaced so that the end edge 16 'of the locking end 16th is below the parting line 21. In this position the key can be turned and the profile cylinder actuate.

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 region 17 ′ of the armature 17 rests. The locking end 16 projects with the end edge 16 ' the parting line 21 into the area of the core 20. The locking pin prevents rotation in this position of the locking cylinder. The lock cylinder can be do not turn despite correct mechanical coding.

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 has a cover 32 Mistake. 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. The electronic buttons 35 can be used Set locking parameters. With the buttons 35 can in particular also the coding of the lock to change. The display 34 assigned to the cuff shows the current or changed locking code.

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 Submersible anchor 17 and the feed line 47 are arranged. The 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 recess 55 and the adjacent wall of the assembly 41 is the supply line 47 out. The supply line is a flexible strip line trained and extends to the antenna 19. The Carrier 50, which is made of metal, bilet 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 the lock cylinder housing 1 has a bore 57, into which a sensor 51 protrudes. The sensor 51 is over Contacts 53 connected to a flag of the supply line. Of the Sensor is below the housing pin, so that not inserted key the housing pin outside of the sensor area. Acting on the sensor 51 it is a magnetically activatable sensor, which interacts with the magnetic first housing pin 52, as soon as a key is inserted and the Pin 52 is moved down into the sensor area.

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 long 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 electromagnetic additional 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 for the realization of the invention may be of importance. All the features disclosed are essential to the invention. In the disclosure of the application is hereby also the Disclosure content of the associated / attached priority documents (Copy of the pre-registration) in full involved.

Claims (24)

1. Lock cylinder with a cylinder plug rotationally locked by at least one key profile-controlled pin tumbler (10, 11) which comprises a plug pin (11) and a housing pin (12) spring-biased in the housing and an electromagnetically operated locking pin (14), characterised in that the locking pin is integrated in the pin tumbler (10, 11).
2. Lock cylinder according to claim 1, characterised in that the locking pin (14) is arranged in a bore of the housing pin (12).
3. Lock cylinder according to any of the preceding claims, characterised in that the locking pin (14), which is guided coaxially in the housing pin (12), extends at one end in the locking position with a locking end (16) into an axial blind bore (11') of the cylinder plug pin (11).
4. Lock cylinder according to any of the preceding claims, characterised in that the spring (13) of the housing pin (12) associated with the locking pin (14) is supported on a base (15) of the locking pin (14).
5. Lock cylinder according to any of the preceding claims, characterised by a sleeve (24) or the like which is inserted on the flange end side in a bore of the lock cylinder housing (1) intersecting the pin bores (25), and on whose outer wall, which closes the pin bores, are supported the springs (26) of the pin tumblers.
6. Lock cylinder according to any of the preceding claims, characterised in that the locking pin (14) is controlled by an armature (17) of an electromagnet (18) which can be displaced parallel to the axial direction of the cylinder plug (20).
7. Lock cylinder according to claim 6, characterised in that the electromagnet (18) is arranged in the flange region of the profile cylinder.
8. Lock cylinder according to either of claims 6 or 7, characterised in that the electromagnet (18) is seated in a sleeve (24) on the outer surface of which are supported the springs of the pin tumblers (9, 10).
9. Lock cylinder according to any of the preceding claims, characterised by an aerial on the flange side, which is held by the sleeve.
10. Locking device with key and a lock cylinder according to any of the preceding claims, characterised by a transponder (8) arranged in the key handle (7) and cooperating with the aerial (19).
11. Lock cylinder according to any of the preceding claims, characterised by activation of a transmitter by a pin tumbler (9, 10) displaced by a key.
12. Lock cylinder according to any of the preceding claims, characterised by a magnet which is associated with the housing pin (10) and cooperates with a solenoid switch.
13. Lock cylinder according to any of the preceding claims, characterised by a cable guide groove (30) provided on the cylinder casing.
14. Locking device with a lock cylinder according to any of the preceding claims, characterised by a battery compartment which is covered by the cuff plate, cable-connected to the lock cylinder and insertable in an opening on the narrow side of the door.
15. Locking device with a lock cylinder according to any of the preceding claims, characterised by a housing inserted in a recess on the cuff plate side, for receiving an electronic control unit (39) which can also include a highfrequency transmitting and receiving portion.
16. Locking device with a lock cylinder according to any of the preceding claims, characterised by recoding switches (35) which are associated with the cuff plate (31) and in particular can be covered with a cover (32) and/or an indicator device (34).
17. Lock cylinder according to any of the preceding claims, characterised in that the electromagnet (18), a plunger-type armature (17) associated with the electromagnet and a supply wire (47) are associated with a unit (41) capable of insertion transversely to the direction of key insertion in a recess (55) of the flange region of the profile lock cylinder.
18. Lock cylinder according to claim 17, characterised in that the unit includes a carrier (50) which can be connected to the flange section by radial pins (49) and whose outer wall complements the recess (55) into the profile shape.
19. Lock cylinder according to claim 18, characterised in that the carrier comprises a transmitting/receiving aerial (19).
20. Lock cylinder according to any of the preceding claims, characterised by a sensor (51) which is arranged in a parallel bore (57) to the housing pin bores and which cooperates with a magnetic housing pin (52).
21. Lock cylinder according to any of the preceding claims, characterised in that the plunger-type armature (17) which forms a step comprises a guide slot (44) into which extends a projection of a stopper (45) which can be inserted in a longitudinal narrow side opening of the carrier (50).
22. Lock cylinder according to any of the preceding claims, characterised in that the supply wire (47) constructed as a flexible strip line emerges through a gap (48) in the region of the carrier (50) facing away from the end of the profile lock cylinder.
23. Lock cylinder according to claim 22, 'characterised in that the gap lies adjacent to a projection (46) mounted on the longitudinal narrow side of the carrier and is covered by the projection (46) on the door plate side.
24. Lock cylinder according to any of claims 21 to 23, characterised in that the stopper closes an opening which is arranged in alignment with the housing bore receiving the electromagnetically displaceable pin (14) and which is in particular associated with the carrier (50).

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