EP2998477B1 - Knob cylinder for a door or a window - Google Patents

Description

The invention relates to a knob cylinder for a door or a window, with a lock cylinder having a cam for actuating a locking device, with a handle for rotational actuation of a drive shaft, wherein a movement coupling of the drive shaft with the cam by means of an actuator is controllable so that in a locking state of the actuator of the cam is not actuated and that in a release state of the actuator, the cam is actuated by the handle, wherein a control device is provided for driving the actuator.

Knob cylinders of the type mentioned above, an authorization signal is used to release the knob cylinder. The authorization signal is for example a mobile electronic key in the form of a Transmitters or transponders and transmitted to the receiving unit. Upon receipt of an authorization signal, the actuator is transferred to its release state, so that a rotary actuation of the handle by means of the drive shaft to the cam is transferable. The cam then serves to drive other lock parts, such as a latch or bolt, which lock parts are then operated so that the door or the window is released and can be opened.

Knob cylinder with electronic locking cylinders are for example from the DE 20 2012 007 659 U1 and from the DE 198 51 308 A1 known.

On this basis, the present invention has the object to provide a possible attack-proof knob cylinder.

This object is achieved in a knob cylinder of the aforementioned type according to the invention that the handle comprises at least a first assembly to which a second assembly is releasably secured, and that a sensor arrangement for detecting a relative movement between the modules is provided.

The knob cylinder according to the invention makes it possible to detect a mechanical manipulation, which is accompanied by the change of a joining state of different assembly. In this way, it is possible to detect a detachment of the second assembly from the first assembly, in particular to then deactivate the actuator so that the lock bit of the lock cylinder is no longer operable, even if exposed parts of the first assembly are manipulated mechanically or electronically.

Preferably, the first assembly is rotatably connected to the drive shaft. The first assembly preferably further comprises at least one outer part of the control device and / or a receiving unit for receiving an authorization signal and / or a battery.

The second assembly preferably includes a cap defining a cap interior. The cap interior preferably serves to arrange the first assembly, in particular the aforementioned components of the first assembly.

According to one embodiment of the invention, the sensor arrangement comprises a contact switch, which is effective between the relatively movable assemblies. For example, the contact switch is connected to one of the assemblies and cooperates via a contact surface with a component of the other assembly. When changing the joining state, the contact surface moves, so that the contact switch is converted from an initial state to an altered state.

In a particularly preferred embodiment, the sensor arrangement comprises at least one in particular electrical contact element, which is fixedly connected to one of the assemblies and in abutting contact with the other assembly. Preferably, the contact element is biased against the other assembly. For example, if the second assembly is removed from the first assembly, the contact member remains due to its bias in the course of removing the second assembly at least for a short transitional time in contact with the second assembly, so that at least in an initial phase of removing the second assembly of the first assembly, a changed joining state can be detected.

In a particularly preferred embodiment, two contact elements are provided, wherein at least one of the modules is effective in a first joining state with the other module as an electrical conductor between the contact element and is effective in a second joining state as an insulator between the contact elements. The first joining state can be a completely joined state of the two assemblies and, in the second joining state, a state in which the second assembly is slightly offset relative to the first joining state, but not yet completely separated from the first assembly , Alternatively, the second joining state corresponds to the completely joined state of the assemblies, while the first joining state corresponds to the state in which the second assembly is slightly offset relative to the first joining state, but not yet completely separated from the first assembly.

It is particularly preferred if the sensor arrangement comprises an annular insulating element, which is connected to one of the modules. This makes it possible, in conjunction with at least one contact element, to detect a lifting of the second assembly, in particular a cap, from the first assembly, without the need for a rotational position of the assemblies relative to one another.

It is further preferred if the actuator is controllable by means of an inner part of the control device and if a detection of a relative movement of the modules triggers the transmission of a blocking signal from an outer part arranged within the handle to the inner part of the control device in order to deactivate the actuator in its blocking state. In this way it is ensured that after an unauthorized removal of the second module and accessibility of the first module further manipulation of the components of the first module (for example, a Fremdbestromung) does not cause the actuator is unjustifiably transferred to its release state.

One possible condition for canceling the deactivation of the actuator in its blocking state may be that the sensor arrangement detects a state in which the assemblies are completely interconnected. In other words, a transfer possibility of the actuator in its release state requires that the modules of the handle are completely connected to each other.

Additionally or alternatively, a condition for canceling the deactivation of the actuator in its blocking state may be that an authorization signal is provided, preferably by means of an electronic key, also called a transponder. This may be, for example, a service transponder, which is used exclusively when the sensor arrangement has detected a relative movement between the modules.

It is possible that the actuator has a locking element, which is not effective in the release state of the actuator, so does not block a rotational movement of the drive shaft and the transmission of a rotational movement of the handle on the cam. In a locked state of a such actuator acts its locking element as a turnstile, which blocks the drive shaft in the direction of rotation. For an operator, this affects the handle so that the handle is blocked due to the blocking by the locking element of the actuator in the direction of rotation and can not be rotated.

But it is also possible that the actuator comprises a clutch which is closed in a release state of the actuator, so that a rotational movement of the handle via the drive shaft and the closed clutch is transmitted to the cam. In a blocking state of such an actuator whose coupling is open, so that a rotary movement of the handle is indeed possible, but not transmitted to the cam due to the open coupling; the handle thus turns "into the void".

Further features and advantages of the invention are the subject of the following description and the diagrammatic representation of a preferred embodiment.

Fig. 1

eine perspektivische Explosionsdarstellung einer Ausführungsform eines Knaufzylinders;

Fig. 2

eine der Fig. 1 entsprechende Darstellung, wobei Teile des Knaufzylinders geschnitten dargestellt sind;

Fig. 3

eine Seitenansicht des Knaufzylinders.

In the drawing shows

Fig. 1

an exploded perspective view of an embodiment of a knob cylinder;

Fig. 2

one of the Fig. 1 corresponding representation, wherein parts of the Knaufzylinders are shown in section;

Fig. 3

a side view of the knob cylinder.

An embodiment of a knob cylinder is shown in the drawing and designated there by the reference numeral 10. The knob cylinder 10 is used in per se Way to control the opening state of a door or a window.

The knob cylinder 10 includes a lock cylinder 12, which includes a lock bit 14 for actuating a known per se and therefore only schematically illustrated closing device 16. The closing device 16 is, for example, a change, which in turn actuates a bolt.

To actuate the Schließbarts 14, a drive shaft 18 is provided, which is drehbetätigbar means of a handle 20. The handle 20 is in particular a knob 22.

The knob cylinder 10 also includes a per se known and therefore not shown actuator with an actuating element. The control element is designed for example in the form of a coupling which can be opened and closed. In an open state of the coupling, the transmission of a rotational movement of an outer drive shaft portion of the drive shaft 18 is prevented to a further inner drive shaft portion, so that a rotational movement of the handle 20 does not lead to a rotation of the further inner drive shaft portion and a corresponding movement of the Schließbarts 14. This corresponds to the blocking state of the actuator.

The release state of the actuator in forming the actuating element as a coupling is achieved in that the clutch is closed, so that the two drive shaft sections are rotatably connected to each other and a rotational movement of the handle 20 via the outer drive shaft section, the clutch and the drive shaft portion is transmitted to the lock bit 14.

In the case of an alternative embodiment, the adjusting element may be a mechanical bolt which prevents rotational movement of the drive shaft 18 in a blocking state. As a result, the handle 20 is blocked in the direction of rotation, and the cam 14 is not actuated. By unlocking the actuator by means of the actuator, this blockage can be canceled, so that the actuator assumes its release state and a rotational movement of the handle 20 by means of the drive shaft 18 on the cam 14 is transferable.

To control the blocking or release state an authorization signal is used in a conventional manner, which is provided by a transponder key.

The handle 20 and the lock cylinder 12 extend along a central axis 24, which is identical to the axis of rotation of the drive shaft 18. The components of the handle 20 described below are arranged concentrically with the central axis 24.

The handle 20 includes a first assembly 26 for placement within a second assembly 28.

The second assembly 28 comprises a cap 30, which is formed as a hollow cylinder and has a cap interior 32 for arranging the first assembly 26. The cap 30 has a metallic, cylindrical shell 34 and a circular or approximately circular cover 36. Further, adjacent to the lid 36 in the cap interior 32 is an annular insulating member 38 arranged, which extends along the inside of the metallic shell 34.

On the side facing away from the cover 36, the jacket 34 in the region of its boundary on an internal thread 40. Further, on the side facing away from the cover 36 of the jacket 34 are provided parallel to the central axis 24 extending grooves 42, which together with projections 44 (only in FIG. 3 shown) provide an anti-rotation between the assemblies 26 and 28 relative to the central axis 24.

The second assembly 26 comprises a housing 46, which serves for the arrangement of components described below.

The assembly 26 comprises a battery 48, a receiving unit 50 and an outer part 52 of a control device 54 (see FIG FIG. 3 ).

The outer part 52 of the control device 54 communicates with a only in FIG. 3 shown inner part 56 of the control device 54, for example by radio or by means of a in FIG. 3 indicated communication line 58. The boundary between an inner region 60 and an outer portion 62 of the knob cylinder is defined by a plane 64, which is structurally realized by a known per se and therefore not shown Bohrschutzelement.

The inner part 56 controls the aforementioned actuator and its blocking or release state.

The first assembly 26 further includes two contact elements 66 and 68, which are electrically connected to the outer part 52 of the control device 54 and against the abutment a wall 70 defining the cap interior 32 of the cap 30 are formed.

The contact elements 66 and 68 of the first assembly 26 and a contact surface 72 of the wall 70 of the shell 34 and the insulating member 38 together form a sensor assembly 74 for detecting a relative movement between the assemblies 26 and 28th

For mounting the handle 20, the first assembly 26 is inserted into the cap interior 32 of the second assembly 28 and fixed by means of the projections 44 and grooves 42 in the direction of rotation. This pre-assembly is screwed with a screw nut 76, which has an external thread 78.

Further, a connecting portion 80 of the housing 46 with a connecting portion 82 of the drive shaft 18 in the rotational direction positively connected (preferably by means of a plug connection), so that the first assembly 26 and the drive shaft 18 rotatably connected to each other. To secure the first assembly 26 in the direction parallel to the central axis 24 direction on the drive shaft 18 may for example be provided (not shown) locking pin, which cooperates with the connecting portion 80 of the housing 46 and a pin receptacle 84 of the connecting portion 82 of the drive shaft 18.

In a state in which the assemblies 26 and 28 are completely joined together, only a first contact element 66 has electrical contact with the contact surface 72 of the metallic shell 34. The second contact element 68 abuts against the wall of the cap 30, but in the region of Insulating member 38, so that an electrical connection between the outer part 52 of the Control device 54, the second electrical contact 68 and the metallic shell 34 is interrupted by means of the insulating.

In the course of a manipulation of the handle 20, for example, an attempt can be made to remove the cap 30 from the first assembly 26. Regardless of whether the removal of the cap 30 is accompanied by a rotational movement of the cap 30 about the central axis 34 (for example, by forcibly breaking the connection between projections 44 and grooves 42) or not, the cap 30 is also moved along the central axis 24 anyway , namely from the lock cylinder 12 away. As a result, the second contact element 68 comes into abutting contact with the metallic contact surface 72 of the jacket 34, so that both the first contact element 66 and the second contact element 68 are electrically connected to the jacket 34, at least for a short transition state, and a circuit is closed to the outer part 52 , This state is detected by the outer part 52 of the control device, and a blocking signal is sent to the inner part 56 of the control device 54. This blocking signal causes a deactivation of the actuator in its blocking state, so that a movement of the Schließbarts 14 can be excluded, even if after exposure of the components of the first assembly 26, these components are manipulated, for example by external energization.

1. 1. Die Sensoreinrichtung 74 erfasst einen vollständig miteinander verbundenen Zustand der Baugruppen 26 und 28 (d.h. es ein elektrischer Kontakt zwischen dem zweiten Kontaktelement 68 und der Kontaktfläche 72 des Mantels 34 liegt nicht vor und der Stromkreis zwischen dem Außenteil 52 und dem Mantel 34 ist unterbrochen);
2. 2. Die Empfangseinheit 50 empfängt ein Berechtigungssignal (hierbei kann es sich um ein spezielles Signal handeln, das von einem Service-Transponder bereitgestellt ist und/oder um das Berechtigungssignal, welches von einem Transponder-Schlüssel eines zum Öffnen des Knaufzylinders befugten Person bereitgestellt wird, welcher auch für die normale Nutzung zur Steuerung des Aktors verwendet wird).

The cancellation of the deactivation of the actuator in its blocking state (ie the possibility of converting the actuator starting from the blocking state into the release state) is preferably linked to the following conditions, which in particular should be fulfilled simultaneously:

1. 1. The sensor device 74 detects a fully interconnected state of the assemblies 26 and 28 (ie there is no electrical contact between the second contact element 68 and the contact surface 72 of the shell 34 is not present and the circuit between the outer part 52 and the jacket 34 is interrupted );
2. 2. The receiving unit 50 receives an authorization signal (this may be a special signal provided by a service transponder and / or the authorization signal provided by a transponder key of a person authorized to open the knob cylinder, which is also used for normal use to control the actuator).

The aforementioned service transponder can also be used if the battery 48 is to be exchanged and to prevent the actuator from being deactivated in its blocking state.

As an alternative to the sensor arrangement 74 shown in the drawing, it is also possible to use a mechanical contact switch, which is arranged for example on the first assembly 26 and cooperates with a cam which is provided on the wall 70 of the jacket 34. In this case, different mechanical switching states of the contact switch correspond to different joining states of the assemblies 26 and 28.

Further, it is possible that a contact switch described above or at least one electrical contact element 66, 68 in the axial direction, ie parallel to the central axis 24, is effective, for example on the first assembly 26 is fixed and cooperates with the cover 36 and / or the nut 76 of the second assembly 28. In this way results in a particularly high sensitivity, with which removal of the cap 30 can be detected by the first assembly 26 in parallel to the central axis 24 direction.

In the manufacture of a knob cylinder 10, the outer part 52 and the inner part 56 of the control device 54 receive a common pairing key. Thus, the two parts 52 and 56 of the control device 54 form a unit in which it is not possible to replace one of the parts 52 or 56 while maintaining the other part 56 or 52.

At any time (may also be delayed in time before a manipulation attempt), the inner part 56 generates a random number and sends them together with a two parts 52 and 56 known sequence (eg a serial number) encrypted with the pairing key to the outer part 52. The outer part 52 then sends the random number in conjunction with an unlock signal to the inner part 56. The inner part 56 recognizes from the identity of the random number with the random number stored locally in the inner part 56 that it is a legitimized unlock signal.

The purpose of the random number sent from the inner part 56 to the outer part 52, therefore, is that an unlock signal, which is fed from the outside, is extended by the random number and is therefore unique. Since the inner part 56 transmits to the outer part 52 a random number known only to these two components, and since the unlocking signal sent later is then expanded by the random number, a manipulatively introduced signal is transmitted unsuitable for causing the unlock, since the inner part 56 detects the absence of the random number. The random number thus ensures that the unlock signal can not be provided manipulatively.

Claims (10)

1. A knob cylinder (10) for a door or a window, comprising a lock cylinder (12), which has a lock bit (14) for actuating a locking device (16), comprising a handle (20) for actuating a drive shaft (18) in a rotary manner, wherein a motion coupling of the drive shaft (18) to the lock bit (14) can be controlled by means of an actuator such that, in a blocking state of the actuator, the lock bit (14) cannot be actuated, and such that, in a releasing state of the actuator, the lock bit (14) can be actuated by means of the handle, wherein a control device (54) is provided in order to control the actuator, characterized in that the handle (20) comprises at least one first module (26), to which a second module (28) is detachably fastened, and in that a sensor arrangement (74) for detecting a relative movement between the modules (26, 28) is provided.
2. The knob cylinder (10) according to claim 1, characterized in that the first module (26) is connected to the drive shaft (18) for conjoint rotation.
3. The knob cylinder (10) according to claim 1 or 2, characterized in that the second module (28) comprises a cap (30), which defines a cap interior (32).
4. The knob cylinder (10) according to any one of the preceding claims, characterized in that the sensor arrangement (74) comprises a contact switch, which is effective between the modules (26, 28) movable relative to one another.
5. The knob cylinder (10) according to any one of the preceding claims, characterized in that the sensor arrangement (74) comprises at least one contact element (66, 68), which is fixedly connected to one of the modules (26, 28) and bears with contact against the other module (28, 26).
6. The knob cylinder (10) according to any one of the preceding claims, characterized in that two contact elements (66, 68) are provided, and in that at least one of the modules (28), when in a first state of being joined to the other module (26), is effective as an electrical conductor between the contact elements (66, 68) and, in a second joined state, is effective as an insulator between the contact elements (66, 68).
7. The knob cylinder (10) according to any one of the preceding claims, characterized in that the sensor arrangement (74) comprises an annular insulation element (38), which is connected to one of the modules (28).
8. The knob cylinder (10) according to any one of the preceding claims, characterized in that the actuator can be controlled by means of an inner part (56) of the control device (54), and in that a detection of a relative movement of the modules (26, 28) triggers the transmission of a blocking signal from an outer part (52) arranged within the handle (20) to the inner part (56) of the control device (54) in order to deactivate the actuator in the blocking state thereof.
9. The knob cylinder (10) according to claim 8, characterized in that a cancellation of the deactivation causes the sensor arrangement to detect a state in which the modules (26, 28) are fully connected to one another.
10. The knob cylinder (10) according to claim 8 or 9, characterized in that a cancellation of the deactivation causes an authorization signal to be provided, preferably by means of an electronic key.

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