EP1574643B1 - Electromechanical lock cylinder - Google Patents

Abstract

The electromechanical cylinder lock has a cylinder (1) with a first half (2) housing (5) on the outside of the door and a rotor (7) with a slot (8) for a security radio key. A connection piece (10) joins the first cylinder housing with a housing (6) for a second cylinder half on the inside of the door. There may be length adjustment pieces (16). There is a hand knob (24) on the inside containing electronic control circuits, connected to the outer cylinder housing.

Description

The invention relates to an electromechanical lock cylinder according to the preamble of claim 1. The invention also relates to a knob for a lock cylinder and a kit for producing an electromechanical lock cylinder.

Electromechanical cylinder locks are for example by the EP 0 816 600 . DE 199 30 054 C . EP 1 256 671 A and the EP 0 743 411 B became known. Such electromechanical cylinder locks offer by an electronic coding a higher security against closing and allow a simpler construction of locking systems.

An electromechanical lock cylinder with a door inside rotary knob, which corresponds to the preamble of claim 1, is known from EP 1 188 887 A known. This has in addition to the usual pin tumblers in the door-side cylinder half an electronic locking system with an additional locking device, which is also arranged in the door-side cylinder half. In the key ridge of the key, a transmitter is arranged, which sends a coded signal to a receiving antenna, which is arranged in the housing of the lock cylinder. An electronic circuit analyzes the coded signal and compares it with several stored codes. If the key is recognized as authorized, a signal is triggered by the electronic circuit to unlock the said additional locking device. The unlocking is done for example by adjusting a locking pin with a motor, which is powered by a battery. This battery is housed for example in said knob. After the said unlocking the lock cylinder is still locked by the usual tumblers and can on the door outside with the key only after these usual tumblers has been classified by the mechanical coding of the key. The electronic circuit is arranged in the rotary knob and partially in the cylinder housing and forms a fixed bearing pin for the sleeve-shaped handle part of the knob. The electronic circuit is fastened with means not shown here on the housing of the inner cylinder half.

The EP 1 079 051 A discloses a locking device with a knob, which has control electronics below a cup-shaped handle. For holding the control electronics, the housing of the closing device has a flange. Through this flange, a shaft connected to the rotor is passed through this shaft is welded to a bottom portion of the cup-shaped handle. The cup-shaped handle is pulled out, for example, for changing a battery together with said shaft from the housing.

The FR-A-2 761 396 discloses a rotary lock cylinder with two knobs. In the inside knob an electronics and a linear actuator are arranged. With an electronic key that can be inserted into a channel of the knob for the outside, can be moved by operating the linear actuator, a coupling element, so that the two turrets are coupled together. With the outer knob then a driver can be rotated and thereby the lock can be opened.

The EP-A-0 588 209 discloses a lock cylinder with an electromagnet with which a slider moves and thereby a handle can be coupled to a rotor. The activation of the electromagnet takes place with a coded signal.

The EP-A-0 428 892 discloses a rotary-lock cylinder with a knob in which a locking pin is arranged which can be moved with a solenoid between a locking and a releasing position.

There are a number of profile variants for lock cylinders available on the Weltmark. The invention is based on the object, an electromechanical To provide locking cylinder, which allows for all known profile variants a particularly efficient production and assembly.

The object is achieved in a generic electromechanical lock cylinder according to claim 1.

In the electromechanical lock cylinder according to the present invention, the rotary knob with the electronics arranged therein forms a unit. The connection of the electronics to the housing of the cylinder is pluggable. For this connection, only a bore is required in the housing of the cylinder, a costly screw is unnecessary. This allows a simple construction on a wide variety of cylinder profiles, without the previously required use of a special adapter that had to be individually adapted to each cylinder profile and bolted. The rotary knob rotor is thus a universal carrier for various cylinder profiles, in which case a rotary knob rotor without electronics can be used.

According to a development of the invention, the rotary knob rotor is changeable in its length by an exchangeable intermediate piece. By this further feature, it is possible to create a modular system with the same items different length cylinder locks can be made. As a result, a significant rationalization and a significant reduction in storage can be achieved.

According to a development of the invention, the electronics, which is housed in the knob, connected by means of a plug connection with the housing of the inside of the door to be arranged second cylinder half. To make this connection, only one hole is required on said housing. This has the significant advantage that a problem-free design of the knob on a variety of cylinder profiles without a special adapter is possible. The locking cylinder according to the invention can thus be produced with a wide variety of commercially available profiles.

According to a development of the invention, the connector has a pin which engages in a floating manner in a recess of the housing of the second cylinder half. This floating bearing has the significant advantage that the electronics in the knob is protected against impacts on the cylinder. Shocks of the cylinder are thus not transmitted directly to the electronics.

According to a development of the invention, the electronics are connected by a cable to an actuator which is arranged in the first cylinder half. This ensures a secure electrical connection between the electronics and the Aktua gate.

According to a development of the invention, the cable has at its two ends in each case a plug. With one plug the cable is connected to the electronics and with the other plug to the actuator or the locking device. As a result, the cable for lengthening or shortening the lock cylinder can be easily separated from the electronics or the actuator. In the basic version, the cable is preferably designed so that it has a reserve area, which can be used to extend the lock cylinder.

According to a development of the invention, the two cylinder halves are detachably connected to each other with a connecting web. For an extension of the lock cylinder, the two cylinder halves can be separated from each other and reassembled after the installation of one or more extensions.

According to a development of the invention, it is provided that the connecting web can be used for different cylinder lengths. For this purpose, the cylinder bar on an excess number of holes, which are used depending on the cylinder length.

According to a development of the invention, the connecting web has on its underside a groove into which the cable is inserted. This allows the cable to be integrated into the connecting bridge, which facilitates assembly and possible extension.

The invention also relates to a rotary knob for an electromechanical lock cylinder according to claim 1. The rotary knob forms a unit which is releasably attachable to the extension of the rotary knob rotor.

According to a development of the invention, the bearing disc used in a front open end of the handle part has an opening for the passage of a cable and an opening for receiving a connecting pin. With the connecting pin, the electronics of the knob is coupled to the housing of the second cylinder half. Through the second opening, the cable is pulled through, which connects the electronics with the actuator.

According to a development of the invention, the bearing disc is secured with a snap ring on the cup-shaped handle part. This makes it possible to easily replace the batteries housed in the knob.

According to a development of the invention, the knob is releasably secured with a snap ring on the rotary knob rotor.

According to a development of the invention, the rotary knob in the cup-shaped handle part on a sliding sleeve, in which a support for the electronics is mounted. Preferably, at least one battery is also accommodated in this carrier.

The invention also relates to a construction kit for producing an electromechanical lock cylinder according to claim 1. This comprises at least a first cylinder half with tumblers and an electronically controllable actuator, with which the rotor of the first cylinder half is lockable, with a second cylinder half, which has a prolonged rotary knob rotor, on which a knob is mounted, with spacers, with which the rotary knob rotor is extendable and with further intermediate pieces with which the housings of the first and the second cylinder half are extendable. With this kit, electromechanical cylinder locks with different lengths can be produced. An already installed locking cylinder can be extended or shortened at any time, if necessary.

Figur 1

eine räumliche Ansicht eines erfindungsgemässen Schliesszylinders, wobei einzelne Teile auseinander gezogen sind,

Figur 2

eine räumliche Ansicht des Drehknopfes und des Drehknopfrotors, wobei auch hier einzelne Teile auseinander gezogen sind,

Figur 3

eine räumliche Ansicht zu jeder Station der schwimmenden Lagerung des Drehknopfes am Schliesszylinder,

Figur 4

eine vereinfachte Schnittdarstellung eines erfindungsgemässen Zylinderschlosses,

Figur 5

eine räumliche Ansicht eines Aktuators und eines Verbindungskabels,

Figur 6

eine Ansicht eines Verbindungssteges mit eingelegtem Kabel,

Figur 7

eine Ansicht des Verbindungssteges, wobei das Kabel weggelassen ist, und

Fig. 8a-8d

Ansicht verschiedener Profile des erfindungsgemässen Schliesszylinders.

An embodiment of the invention will be explained in more detail with reference to the drawing. Show it:

FIG. 1

3 is a perspective view of a lock cylinder according to the invention, wherein individual parts are pulled apart,

FIG. 2

a spatial view of the knob and the rotary knob rotor, whereby also here individual parts are pulled apart,

FIG. 3

a spatial view of each station of the floating mounting of the knob on the lock cylinder,

FIG. 4

a simplified sectional view of an inventive cylinder lock,

FIG. 5

a spatial view of an actuator and a connecting cable,

FIG. 6

a view of a connecting web with inserted cable,

FIG. 7

a view of the connecting web, wherein the cable is omitted, and

Fig. 8a-8d

View of various profiles of the inventive lock cylinder.

The in FIG. 1 Lock cylinder 1 shown has substantially a first cylinder half 2, a second cylinder half 3 and a knob 24. The two Zylinderhälf th 2 and 3 are releasably connected to a connecting web 12. The first cylinder half 2 has a housing 5 and a rotor 7 and pin tumblers, not shown here, which are provided with a in FIG. 4 indicated key 44 can be arranged. For this purpose, the rotor 7 has a key channel 8. In the first half of the cylinder 2 is also in FIG. 5 shown further locking device arranged, which is controllable with a signal of an accommodated in the handle part 25 electronics 17.

Between the two cylinder halves 2 and 3, a driver 10 is arranged, which has a beard 11, with which a latch, not shown here, of a lock can be actuated. The driver 10 is rotatably connected to a rotary knob rotor 4, which in turn is rotatably connected to the knob 24. By turning the knob of the driver 10 can be rotated and thus said latch to be moved. A coupling member 23 which is axially displaceable against the retroactive force of a spring 22, the rotor 7 is connected to the driver 10 at the onset of the key 44 in the key channel 8. With an authorized key 44 thus the driver 10 can be rotated and thus also said latch can be moved.

The second cylinder half 3 has a housing 6 with a passage 51 in which the rotary knob rotor 4 is mounted. the housing 6 is extendable with extension pieces 16 which have the same profile as the housing 6 and which also each have a passage 52. With these extension pieces 16 and the housing 5 of the first cylinder half 2 is extended. If such extension pieces 16 are used, the rotary knob rotor 4 must be extended accordingly. For this purpose, different length extension pieces 18a, 18b and 18c are provided. For connecting the extension pieces 18a to 18c with the rotary knob rotor 4, this has a dovetail groove 19, into which a corresponding slide part 19a of the intermediate piece 18a, 18b or 18c can be inserted. A same connection is also provided to a coupling piece 21. The coupling piece 21 has a groove 61 in which a locking element, not shown here, is inserted, with which the coupling piece is anchored to the cylinder.

To anchor the housing 6 to the connecting web 12, the housing 6 has a bore 54 for receiving a pin 14. The extension pieces 16 also have corresponding recesses 53. The connecting web 12 has a central thickening 49 ( Fig. 6 ) with a forend screw hole 13.

As already mentioned above, the first half cylinder 2 has conventional pin tumblers, which are arranged by control surfaces of the key 44, not shown here. These control surfaces are realized for example by drilling in the shaft 44a of the key 44. The key 44 is preferably a reversible key, but in principle this can also be designed as a so-called toothed key or otherwise. For electronic blocking of the rotor 7 of the first cylinder half 2, the in FIG. 5 Locking device 43 shown in more detail provided. This is according to FIG. 1 in the lower part and thus stored in cylinder bag 9 of the housing 5. The locking device 43 has according to FIG. 5 a housing 55 on which a locking member 46 is mounted. This is movable with an engine, not shown here in the housing 55 between two positions. In one of the positions of the locking member 46 engages in recesses of the rotor 7 and locks it relative to the housing 55. In the other retracted position of this engagement is repealed. On the housing 55, an antenna 47 is also arranged, which receives signals from a transmitter 56 which is arranged in the key 44. The locking member 46 and the antenna 47 form a unit which does not interfere with the mechanical function of the pin tumblers. Via an electrical cable 29, the locking device 43 is connected to an electronics 17, according to FIG. 4 in the knob 24 and thus located inside the door. About the cable 29, the locking device 43 is connected to the operation of the motor with a power source and in particular a battery 41, which according to FIG. 4 is also arranged in the knob 24. The battery 41 and the electronics 17, which is arranged on a plate 36, are fastened to a carrier 32, which in FIG. 2 is shown. In the carrier 32, a battery holder 33 is inserted, which is fixed with a sponge rubber 34 on a disc 57 which is fastened with two fastening screws 35 on the carrier 32. The plate 36 with the electronics is fastened to the carrier 32 with four fastening screws 37. For receiving an extension 4a of the rotary knob rotor 4, the carrier 32 has a passage 58. On the support 32, a bearing plate 39 is arranged, which is rotatably connected to two pins 38. For receiving the two pins 38, the carrier 32 has two corresponding holes 59 on the front side. The carrier 32 is arranged in a circular cylindrical sleeve 31, which is made of plastic and serves as a sliding sleeve for the grip part 25.

To change the battery 41 of the lock cylinder must be removed so that the snap ring 26 is accessible. An unnoticed removal of the battery 41 is therefore hardly possible.

The FIG. 3 shows the position of the bearing plate 39 which, as mentioned, non-rotatably connected to the carrier 32 and thus to the electronics 17 is connected. For receiving the extension 4a of the Drehlmopfrotors 4, the bearing disc also has a central passage 60. For axial fixation of the bearing plate 39, a snap ring 26 is provided according to FIG. 3 is inserted into a groove 61 of the handle portion 25. The knob 24 thus forms a compact with the bearing plate 39, the electronics 17 and the batteries 41 Unit. The FIG. 3 shows how the knob 24 is pushed axially in the direction of arrow 40 on the rotary knob rotor 4.

For releasable axial attachment of the knob 24 on the rotary knob rotor 4, this has an outside groove 62 for receiving a snap ring 27, which connects the knob 24 with the rotary knob rotor 4 releasably. In order for the rotary knob rotor 4 to rotate with the grip part 25, the rotary knob rotor 4 has at the free end a surface 20 which forms a stop in a driver 45.

If the rotary knob 24 is mounted on the rotary knob rotor 4, the rotary knob rotor 4 and with this the driver 10 can be rotated. Preferably, in this case only the handle part 25 is rotated with the rotary knob rotor 4. The electronics 17 and the batteries 24, however, are according to FIG. 4 with a pin 28 to the housing of the second cylinder half 3 floatingly connected. The pin 28 engages according FIG. 1 with the one end in a recess 63 of the housing 6 and with the other end in a recess 64 of the bearing plate 39 a. The recess 63 or the recess 64 are designed so that the pin 28 is mounted with radial clearance floating in at least one of these two recesses. This prevents blows, which are caused for example by a slamming door, are transmitted to the electronics 17.

The bearing plate 39 has a further bore 65, through which according to FIG. 4 the cable 29 is pulled through. The recesses 64 and 65 may also be replaced by a common and correspondingly larger recess not shown here. The cable 29 and the pin 28 are then stored in this recess. The bearing plate 39 is thus connected to the pin 28 floating with the second cylinder half 3. The connection is a plug connection, so that only one bore is required on the second cylinder half 3 for receiving the pin 28. Such a bore can be in any commercial cylinder profile and in particular in the cylinder profiles according to the FIGS. 8a to 8d Attach. For the production of the electromechanical lock cylinder according to the present invention can thus use all the usual profiles, the conversion is relatively minor. The mechanically proven design of the rotary knob rotor with the rotary knob coupling or the coupling member 23 does not have to be changed significantly. Schliesstechnisch the first half of the cylinder 2 can be fully equipped with tumbler pins. The rotary knob rotor 4 is universal carrier of knobs 24 different outer shapes and profiles. It is therefore also possible to use a rotary knob 24 without electronics.

Due to the simple structural design and the ability to extend the two cylinder halves 2 and 3 and the rotary knob rotor 4, it is possible to extend the inventive electronic lock cylinder on the site or shorten. The two plugs 30 and 42 make it possible to disconnect the cable 29 from the locking device 23 and the electronics 7. This can also be done by a layman. The connecting web 12 can be universally used with the integrated cable 29 for different cylinder lengths. As the FIGS. 6 and 7 show, the connecting web 12 has on its underside a groove 50, in which the cable 29 is inserted. The cable 29 is visible from the outside only in the region of the thickening 49 from below. Only two of the four passages 48 are used, so that a total of four different lengths can be mounted with the connecting web 12. As mentioned, this can significantly reduce inventory and costs.

LIST OF REFERENCE NUMBERS

1

lock cylinders

2

first cylinder half

3

second cylinder half

4

Knob rotor

4a

renewal

5

casing

6

casing

7

rotor

8th

keyway

9

cylinder sack

10

takeaway

11

beard

12

connecting web

13

Stulpschraubenbohrung

14

pen

15

recess

16

extension pieces

17

electronics

18a

connecting piece

18b

connecting piece

18c

connecting piece

19

dovetail

19a

slide

20

area

21

coupling

22

feather

23

coupling member

24

knob

25

handle part

26

big snap ring

27

small snap ring

28

pen

29

electric wire

30

plug

31

shell

32

carrier

33

battery holder

34

foam rubber

35

connecting screw

36

plate

37

connecting screw

38

pencils

39

bearing disk

40

arrow

41

battery

42

plug

43

locking device

44

key

44a

shaft

45

takeaway

46

blocking part

47

antenna

48

drilling

49

thickening

50

groove

51

passage

52

passage

53

recesses

54

drilling

55

casing

56

transmitter

57

disc

58

passage

59

drilling

60

passage

61

groove

62

groove

63

recess

64

recess

65

recess

Claims (17)

1. An electromechanical lock cylinder, having a first cylinder half (2) to be arranged on the outside of the door, having a key channel (8) for a safety key (44) and a second cylinder half (3) to be arranged on the inside of the door, having a rotary knob rotor (4), which is connected to a rotary knob (24), having tumblers, which are arranged in the first cylinder half (2) and which are to be positioned by the safety key (44) in order to enable rotation, having electronics (17) arranged in the rotary knob (24) for the purpose of driving a blocking apparatus (43), that is arranged in the first cylinder half (2) to be arranged on the outside of the door, wherein the rotary knob (24) with the electronics (17) arranged therein forms a unit which is mounted detachably and such that it can be plugged on an extension (4a), which protrudes on the housing (6), of the rotary knob rotor (4), and wherein the electronics (17) are connected to the housing (6) of the second cylinder half (3) by means of a plug-in connection (28), characterized in that the rotary knob (24) has a bearing disk (39), which covers the electronics (17) on the outside and is connected detachably to a pot-shaped handle part (25) of the rotary knob.
2. The lock cylinder as claimed in claim 1, characterized in that the plug-in connection has a pin (28), which is inserted into a cutout (63) in the housing (6) of the second cylinder half (3).
3. The lock cylinder as claimed in claim 2, characterized in that the pin (28) is mounted, in a floating manner, in the cutout (63).
4. The lock cylinder as claimed in one of claims 1 to 3, characterized in that the cable (29) is connected detachably to the blocking apparatus (43) and/or the electronics (17).
5. The lock cylinder as claimed in claim 4, characterized in that the cable (29) has a plug (30, 42) at each of its ends.
6. The lock cylinder as claimed in claim 4 or 5, characterized in that the cable (29) is introduced through a groove (50) of a connecting web (12).
7. The lock cylinder as claimed in claim 6, characterized in that the connecting web (12) has a surplus of holes (48) for accommodating a connecting pin (14).
8. The lock cylinder as claimed in claim 1, characterized in that the bearing disk (39) has an opening for a connecting pin (28) and an opening for passing through a cable (29).
9. The lock cylinder as claimed in claim 1, characterized in that the bearing disk (39) is fixed detachably to the handle part (25) by a snap ring (26).
10. The lock cylinder as claimed in one of claims 1 to 10, characterized in that the rotary knob (24) is fixed detachably to the rotary knob rotor (4) by a snap ring (27).
11. The lock cylinder as claimed in one of claims 1 to 10, characterized in that a slide sleeve (31) is arranged in the rotary knob (24), a carrier (32) for the electronics (17) being mounted in said slide sleeve (31).
12. A rotary knob for an electromechanical lock cylinder as claimed in claim 1, wherein it can be connected in a pluggable manner to the second cylinder half (3), wherein the rotary knob (24) with the electronics (17) arranged therein forms a unit, wherein the rotary knob has a plug-in connection (28), which connects the electronics (17) with the housing (6) of the second cylinder half (3), characterized in that it has a bearing disk (39), which covers the electronics (17) on the outside and is connected detachably to a pot-shaped handle part (25) of the rotary knob.
13. The rotary knob as claimed in claim 12, characterized in that the bearing disk (39) that is inserted into a front, open end of the grip part, has an opening for passing through a cable (29) and an opening for accommodating a connecting pin (28).
14. The rotary knob as claimed in claim 13, characterized in that the bearing disk (39) is fixed detachably to the pot-shaped handle part (25) by a snap ring (26).
15. A construction kit for producing an electromechanical lock cylinder as claimed in claim 1, characterized by a first cylinder half (2) having tumblers and an actuator (43), which can be driven electronically and with which a rotor of the first cylinder half (2) can be blocked, having a second cylinder half (3), which has an extendible rotary knob rotor (4), on which a rotary knob (24) is mounted, having intermediate pieces (18a to 18c), with which the rotary knob rotor (4) can be extended and having further intermediate pieces (16), with which the housings (5, 6) of the first and the second cylinder halves (2, 3) can be extended, wherein the rotary knob (24) has a bearing disk (39), which covers the electronics (17) on the outside and is connected detachably to a pot-shaped handle part (25).
16. The construction kit as claimed in claim 15, characterized in that the two cylinder halves (2, 3) are guided by a connecting web (12), a cable (29) being laid in the connecting web (12).
17. The construction kit as claimed in claim 15 or 16, characterized in that a connecting member (28), in particular a pin, is provided with which electronics (17) arranged in the rotary knob (24) can be connected in a pluggable and floating manner to the housing (6) of the second cylinder half (3).

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