EP3741934A1 - Locking cylinder - Google Patents
Locking cylinder Download PDFInfo
- Publication number
- EP3741934A1 EP3741934A1 EP20175694.7A EP20175694A EP3741934A1 EP 3741934 A1 EP3741934 A1 EP 3741934A1 EP 20175694 A EP20175694 A EP 20175694A EP 3741934 A1 EP3741934 A1 EP 3741934A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- knob
- coupling
- spring element
- electric motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
- E05B47/0611—Cylinder locks with electromagnetic control
- E05B47/0638—Cylinder locks with electromagnetic control by disconnecting the rotor
- E05B47/0642—Cylinder locks with electromagnetic control by disconnecting the rotor axially, i.e. with an axially disengaging coupling element
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B3/00—Fastening knobs or handles to lock or latch parts
- E05B3/04—Fastening the knob or the handle shank to the spindle by screws, springs or snap bolts
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
- E05B47/0611—Cylinder locks with electromagnetic control
- E05B47/0615—Cylinder locks with electromagnetic control operated by handles, e.g. by knobs
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
- E05B63/0056—Locks with adjustable or exchangeable lock parts
- E05B63/006—Locks with adjustable or exchangeable lock parts for different door thicknesses
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
Definitions
- the invention relates to a lock cylinder with a cylinder housing, a lock bit rotatably mounted in the cylinder housing, a knob shaft rotatably mounted in the cylinder housing, a coupling device in the knob shaft for mechanical coupling of the knob shaft with the lock bit, and control electronics that work with the coupling device for electronic input and output Decoupling of the knob shaft and lock bit is connected to the coupling device, the coupling device having an electric motor with a shaft, a spring element and a coupling element.
- EP 1 576 246 B1 discloses such a locking device for a locking system by operating a lock cylinder of a lock by turning a key or doorknob.
- a coupling element and electronically controlled drive means connected to the housing, with propulsion means for moving the coupling element are provided.
- the coupling element In the second coupling state, in which an output element is coupled to the rotor, the coupling element can be moved away from the propulsion means by a rotary movement of the rotor. This ensures that the coupling only comes about in a single singular state and reduces the probability that the coupling element comes into the second coupling state through accidental excitations. This is achieved by a coupling element which is mounted so as to be movable radially to the direction of extent of the rotor.
- EP 1 522 658 B1 discloses an electric lock in which a slide is linearly displaceable with the aid of a spring element.
- the spring element engages with an end section in a spindle shaft of an electric motor in order to displace the slide coupled to the spring element when the spindle shaft rotates.
- WO 98/15703 A1 describes an electromechanical lock with an electric motor, the shaft of which is connected to a compression spring.
- This compression spring forms a flexible shaft which is connected at its distal end to a knob shaft.
- a pin of an axially displaceable coupling element engages in a worm thread of a helically shaped wire on the knob shaft in order to axially displace a coupling element.
- EP 2 927 395 A1 discloses a lock cylinder with a coupling arrangement in which a slide element meshes with a worm shaft for converting a rotary movement of the worm shaft into a movement of the slide element which is axial with respect to the switching axis.
- a clutch device can be displaced parallel to the switching axis by means of a drive device via the slide element.
- the slide element is occupied by two spring elements with energy storage devices in both axial directions.
- the object of the present invention is to create an improved lock cylinder which is very simply constructed, compact and reliable.
- the coupling member of the lock cylinder be mounted axially displaceably on the knob shaft in the direction of extent of the knob shaft and have a contour designed for mechanical coupling with the lock bit.
- the spring element is connected with a distal end section to the coupling member and axially displaceably coupled with the opposite proximal end section to the shaft of the electric motor in order to convert a rotation of the shaft into a linear movement of the proximal end section of the spring element.
- the coupling member is axially displaced via a spring element which is coupled to the electric motor.
- the coupling member can then be brought into the latching position in a pretensioned position by rotating the knob shaft, and then into the coupling state to get into engagement with the lock bit.
- a particularly advantageous embodiment is obtained when the shaft is in freewheel mode when one of the two end positions is reached in the coupled or uncoupled state.
- a defined pressure force of the spring element is ensured by the freewheel in the two coupled and uncoupled end positions. It also reduces power consumption when idling. Overloading of the spring element is prevented.
- the temperature compensation can be simplified by the end positions. At lower temperatures, the guidance is more difficult, so that the electric motor must be operated for a longer time than at higher temperatures. The running time of the electric motor no longer has to be adjusted - or not so precisely - due to the freewheel in the end positions.
- the knob shaft In the end position in the coupled state, the knob shaft is coupled to the cam. In the end position in the uncoupled state, the knob shaft is not coupled to the cam.
- the shaft of the electric motor can have a worm shaft with a helical turn.
- the spring element is then coupled directly or indirectly to this helical turn in order to move the coupling member axially.
- the coupling device has a sleeve which is arranged displaceably on the worm shaft and which is coupled to the helical turn for axial movement of the sleeve relative to the electric motor or the worm shaft when the worm shaft rotates.
- the spring element can be connected with its proximal end to the sleeve and can dip into the space between the helical turn of the screw shaft. An end section of the spring element thus serves as a pin guided in the helical turn.
- the sleeve itself has an internal thread that engages in the helical turn of the worm shaft.
- the spring element can be a helical compression spring. This is very compact and supports the axial transmission of force and offers spring elasticity in the direction of rotation of the shaft as well as adequate protection against rotation. It is advantageous if a maximum of one spring element, i.e. exactly one spring is arranged between the shaft and the coupling member.
- a drill protection element is arranged in the knob shaft on the side of the electric motor that is opposite the shaft.
- a drill protection element which is directly adjacent to the electric motor or is arranged at a distance from the electric motor. This protects the coupling device from manipulation, so that the coupling device is on the safe side of the lock cylinder.
- the knob shaft can have several locking positions for fastening the actuating knob.
- locking grooves are provided in the knob shaft in the axially spaced apart positions.
- the actuating knob has slide elements that are radially displaceable and non-positively fixable on the actuating knob by means of fastening screws, which slide into the respective locking groove in the intended locking position.
- Figure 1 shows a side sectional view of a lock cylinder 1 for a lock (not shown) in the coupled state.
- the lock cylinder 1 has a cylinder housing 2 in which a lock bit 3 is rotatably mounted.
- the lock bit 3 has in the usual manner a finger protruding from the axis of rotation of the lock bit 2 for actuating a bolt of a lock when the lock cylinder 1 is installed in a lock.
- a knob shaft 4 is also inserted, which is rotatably mounted there.
- An actuating knob 5 can be placed on the end of the knob shaft 4 protruding from the cylinder housing 2.
- a coupling device 5 is installed, which is designed for the mechanical coupling of the knob shaft 4 to the lock bit 3.
- This coupling device 5 has an electric motor 6 with a shaft 7.
- the electric motor is controlled with control electronics (not shown).
- This control electronics can preferably have a radio signal receiver in order to receive opening and closing signals wirelessly.
- the radio signal receiver can be designed for near field (NFC, for example RFID) and / or far field reception (for example Bluetooth, ZigBee, WiFi).
- a worm shaft 8 is placed on the shaft 7 of the electric motor 6 and rotates with the shaft 7 when it rotates.
- a sleeve 9 is arranged axially displaceably in the direction of extent of the shaft 7.
- a spring element 10 in the form of a helical spring (for example a compression spring) is attached to the outer circumference of the sleeve 9.
- the proximal end section of the spring element 10 closest to the electric motor 6 is connected to the sleeve 9 in a rotationally fixed manner.
- This end of the spring element 10 is connected to the worm shaft 8 in order to bring about an axial displacement when the worm shaft 8 rotates.
- the sleeve 9 is screwed with an internal thread onto the external thread of the worm shaft 8 in order to effect an axial displacement of the sleeve 9 when the worm shaft 8 rotates.
- the spring element 10 is connected by its distal end to the coupling member 11 in a rotationally fixed manner. Its opposite proximal end is also connected to the sleeve 9 in a rotationally fixed manner.
- the sleeve 9 is axially displaceable on the worm shaft 8 of the electric motor 6.
- a transverse section of the proximal end section of the spring element 10 is guided transversely through the inner bore 15 of the sleeve 9.
- This transverse section 14 can thus be guided in the space between the helical turn of the worm shaft 8 in order to move the sleeve 9 back and forth axially on the shaft 7 of the electric motor 6 when the worm shaft 8 rotates.
- This causes tensioning or relaxation of the spring element 10 and the coupling member 11 at the distal end of the spring element 10 is moved in the direction of the interior of the knob shaft 4 or is moved out of the front opening of the knob shaft 4 for coupling into the cam 3.
- the distal end section of the spring element 10 is connected to a coupling member 11, the end section of which has a contour that is adapted to a coupling contour of the lock bit 3 in order to be coupled to the lock bit 3 in a rotationally fixed manner in the coupled-in state.
- This coupled state is reached at the latest when the coupling member 11 protrudes as far as possible from the knob shaft 4 on the front side.
- the coupling member 11 is positively connected to the lock bit 3. This is in the Figure 1 recognizable.
- the coupling member 11 is mounted in the knob shaft 4 so as to be axially displaceable. It can be connected non-rotatably to the knob shaft 4 in order to move with the knob shaft 4 when the knob shaft 4 rotates in the coupled and uncoupled state.
- the coupling member 11 has a guide sleeve 12, the outer circumference of which rests against an inner wall of the knob shaft 4 and is mounted axially displaceably in the interior of the knob shaft 4.
- This guide sleeve 12 extends from the end face of the knob shaft 4, which faces the lock bit 3, in the direction of the electric motor 6.
- the coupling member 11 is rotatably mounted in the knob shaft 4 so that it does not rotate when the worm shaft 8 rotates, but only is axially movable.
- the knob shaft 4 can have a guide groove into which a guide section of the coupling member 11 dips. But it is also conceivable that a guide plate 15 is screwed onto the end face of the knob shaft 4, in which the coupling member 11 is guided in a rotationally fixed manner.
- the coupling member 11 is designed in several parts in order to facilitate assembly. But it is also conceivable that the coupling member 11 is also in one piece with the guide sleeve 12.
- the sleeve 9 is no longer in engagement with the worm shaft 8.
- the worm shaft 8 is freewheeling when one of the end positions is reached and the electric motor 6 continues to rotate.
- a defined pressure force of the spring element 10 is thus ensured. It also reduces power consumption when idling. Overloading the spring element 10 is prevented.
- the temperature compensation can be simplified by the end positions. At lower temperatures the guidance is more difficult, so that the electric motor 6 has to be operated for a longer time than at higher temperatures. The running time of the electric motor 6 no longer has to be adapted - or not so precisely - due to the freewheel in the end positions.
- a drill protection element 13 is arranged in the interior of the knob shaft 4 on the side of the knob shaft 4 that faces away from the coupling device 5.
- the anti-drilling element 13 separates the unsafe side directed towards the actuating knob 5 from the unsafe side of the lock cylinder 1, which is located behind the anti-drilling element 13, as seen from the actuating knob 5 and on which the coupling device 5 is located.
- the cylinder housing 2 can optionally be extended by extension disks which are screwed onto the front side adjacent to the actuating knob 5.
- the cylinder housing 2 has threaded bores 14 on the end face for receiving fastening screws for the extension disks.
- the actuation knob 5 can be fixed in several positions on the knob shaft 4.
- 4 locking grooves 15 are provided in the predetermined locking positions on the knob shaft.
- Figure 3 shows a sectional view in the area of the actuating knob 5 with the locking of the confirmation knob 5 with a locking groove 15 of the knob shaft 4 at a respective locking position with the aid of slide elements 16a, 16b.
- the slide elements 16a, 16b dip into the not visible locking groove 15 of the knob shaft 4. They rest on the face of the actuating knob 5 and, as can be seen in view (a), are screwed to it with fastening screws 17.
- the actuating knob 5 has a guide plate 18 with a receiving contour 19 which is adapted to the outer edge contour of the slide elements 16a, 16b and allows the slide elements 16a, 16b to be displaced radially outwards.
- the view (b) shows the section through the slide elements 16a, 16b. It can be seen that the locking groove 15 is polygonal in section and around the circumference of the Knob shaft 4 runs around.
- the slide elements 16a, 16b have an end adapted to this with two spaced apart lateral fork tongues which couple the actuating knob 5 in a rotationally fixed manner on the knob shaft 4 by means of a positive fit of the fork tongues with the polygonal contour of the locking groove 15.
- the slide elements 16a, 16b can be pushed outward so that they no longer plunge into the locking groove 15.
- the actuating knob 5 can then be shifted axially on the knob shaft 4 into another latching position in order to be fixed there again on the latching groove 15 there.
- Figure 4 shows a perspective detail view of the lock cylinder 1 in the area of the worm shaft 8 of the electric motor 6. It becomes clear that the sleeve 9 surrounds the worm shaft 8 on the circumferential side and is guided on it in a longitudinally displaceable manner. The sleeve is arranged coaxially in the guide sleeve 12. It can also be seen that the coupling member 11 is designed in the form of two fingers protruding radially outwards in opposite directions, which dip into associated coupling recesses of the lock bit 3 in order to couple the knob shaft 4 to the lock bit 3. ;
- FIG. 11 shows an enlarged view of section A in FIG Figure 4 . It can be seen that a proximal end section of the spring element 10 that is guided across the end face of the sleeve 9 plunges into the space between the flanks of the worm shaft 8.
- the sleeve is thus positively coupled to the worm shaft 8 in such a way that the sleeve 9 moves linearly on the worm shaft 8, depending on the direction of rotation of the worm shaft 8, forwards towards the electric motor 6 or backwards away from the electric motor 6 and towards the cam 3 by the proximal end portion is carried along by the flanks of the worm shaft 8.
- proximal end section is inserted into the frontal recesses of the sleeve. This prevents the proximal end section from being displaced radially outward and thus being able to disengage the worm shaft 8.
Abstract
Ein Schließzylinder (1) mit einem Zylindergehäuse (2), einem rotierbar im Zylindergehäuse (2) gelagerten Schließbart (3), einer rotierbar im Zylindergehäuse (2) gelagerten Knaufwelle (4), einer Kupplungsvorrichtung (5) in der Knaufwelle (4) zur mechanischen Kopplung der Knaufwelle (4) mit dem Schließbart (3) und einer Ansteuerelektronik, die mit der Kupplungsvorrichtung (5) zur elektronischen Ein- und Auskopplung von Knaufwelle (4) und Schließbart (3) mit der Kupplungsvorrichtung (5) verbunden ist, wird beschrieben. Die Kupplungsvorrichtung (5) hat einen Elektromotor (6) mit einer Welle (7), ein Federelement (10) und ein Kupplungsglied (11). Das Kupplungsglied (11) ist in Erstreckungsrichtung der Knaufwelle (4) axial verschiebbar an der Knaufwelle (4) gelagert und hat eine zur mechanischen Kopplung mit dem Schließbart (3) ausgebildete Kontur. Das Federelement (10) ist mit einem distalen Endabschnitt mit dem Kupplungsglied (11) verbunden und mit dem gegenüberliegenden proximalen Endabschnitt axial verschiebbar mit der Welle (7) des Elektromotors (6) gekoppelt, um eine Rotation der Welle (7) in eine Linearbewegung des proximalen Endabschnittes des Federelementes (10) umzusetzen.A lock cylinder (1) with a cylinder housing (2), a lock bit (3) rotatably mounted in the cylinder housing (2), a knob shaft (4) rotatably mounted in the cylinder housing (2), a coupling device (5) in the knob shaft (4) mechanical coupling of the knob shaft (4) with the lock bit (3) and control electronics that are connected to the coupling device (5) for the electronic coupling and decoupling of the knob shaft (4) and lock bit (3) with the coupling device (5) described. The coupling device (5) has an electric motor (6) with a shaft (7), a spring element (10) and a coupling member (11). The coupling member (11) is mounted on the knob shaft (4) so as to be axially displaceable in the direction in which the knob shaft (4) extends and has a contour designed for mechanical coupling with the lock bit (3). The spring element (10) is connected with a distal end portion to the coupling member (11) and with the opposite proximal end portion axially displaceably coupled to the shaft (7) of the electric motor (6) in order to rotate the shaft (7) into a linear movement of the implement proximal end portion of the spring element (10).
Description
Die Erfindung betrifft einen Schließzylinder mit einem Zylindergehäuse, einem rotierbar im Zylindergehäuse gelagerten Schließbart, einer rotierbar im Zylindergehäuse gelagerten Knaufwelle, einer Kupplungsvorrichtung in der Knaufwelle zur mechanischen Kopplung der Knaufwelle mit dem Schließbart, und einer Ansteuerelektronik, die mit der Kupplungsvorrichtung zur elektronischen Ein- und Auskopplung von Knaufwelle und Schließbart mit der Kupplungsvorrichtung verbunden ist, wobei die Kupplungsvorrichtung einen Elektromotor mit einer Welle, ein Federelement und ein Kupplungselement hat.The invention relates to a lock cylinder with a cylinder housing, a lock bit rotatably mounted in the cylinder housing, a knob shaft rotatably mounted in the cylinder housing, a coupling device in the knob shaft for mechanical coupling of the knob shaft with the lock bit, and control electronics that work with the coupling device for electronic input and output Decoupling of the knob shaft and lock bit is connected to the coupling device, the coupling device having an electric motor with a shaft, a spring element and a coupling element.
Ausgehend hiervon ist es Aufgabe der vorliegenden Erfindung einen verbesserten Schließzylinder zu schaffen, der sehr einfach aufgebaut, kompakt und zuverlässig ist.Based on this, the object of the present invention is to create an improved lock cylinder which is very simply constructed, compact and reliable.
Die Aufgabe wird mit dem Schließzylinder mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausführungsformen sind in den Unteransprüchen beschrieben.The object is achieved with the lock cylinder having the features of
Es wird vorgeschlagen, dass das Kupplungsglied des Schließzylinders in Erstreckungsrichtung der Knaufwelle axialverschiebbar an der Knaufwelle gelagert ist und eine zur mechanischen Kopplung mit dem Schließbart ausgebildete Kontur hat. Das Federelement ist mit einem distalen Endabschnitt mit dem Kupplungsglied verbunden und mit dem gegenüberliegenden proximalen Endabschnitt axial verschiebbar mit der Welle des Elektromotors gekoppelt, um eine Rotation der Welle in einer Linearbewegung des proximalen Endabschnittes des Federelementes umzusetzen.It is proposed that the coupling member of the lock cylinder be mounted axially displaceably on the knob shaft in the direction of extent of the knob shaft and have a contour designed for mechanical coupling with the lock bit. The spring element is connected with a distal end section to the coupling member and axially displaceably coupled with the opposite proximal end section to the shaft of the electric motor in order to convert a rotation of the shaft into a linear movement of the proximal end section of the spring element.
Auf diese Weise wird das Kupplungsglied bei einem sehr kompakten und einfachen Aufbau über ein Federelement axial verlagert, welches mit dem Elektromotor gekoppelt ist. Das Kupplungsglied kann dann in einer vorgespannten Position durch Drehung der Knaufwelle in die Einrastposition gebracht werden, um dann in den Kupplungszustand in Eingriff mit dem Schließbart zu gelangen. Bei diesem sehr kompakten Aufbau ist eine zuverlässige Einkoppelung und eine weitestgehend manipulationssichere mechanische Entkopplung sichergestellt.In this way, with a very compact and simple structure, the coupling member is axially displaced via a spring element which is coupled to the electric motor. The coupling member can then be brought into the latching position in a pretensioned position by rotating the knob shaft, and then into the coupling state to get into engagement with the lock bit. With this very compact structure, a reliable coupling and a largely manipulation-proof mechanical decoupling is ensured.
Eine besonders vorteilhafte Ausführungsform ergibt sich, wenn sich die Welle im Freilauf befindet, wenn eine der beiden Endlagen im eingekoppelten oder ausgekoppelten Zustand erreicht ist.A particularly advantageous embodiment is obtained when the shaft is in freewheel mode when one of the two end positions is reached in the coupled or uncoupled state.
Durch den Freilauf in den beiden eingekoppelten und ausgekoppelten Endlagen wird eine definierte Andruckkraft des Federelementes sichergestellt. Zudem wird der Stromverbrauch im Leerlauf reduziert. Eine Überlastung des Federelementes wird verhindert. Durch die Endlagen kann die Temperaturkompensation vereinfacht werden. Bei niedrigeren Temperaturen ist die Führung schwergängiger, so dass der Elektromotor eine längere Zeit betrieben werden muss, als bei höheren Temperaturen. Die Laufzeit des Elektromotors muss durch den Freilauf in den Endlagen nicht mehr - oder nicht so genau - angepasst werden.A defined pressure force of the spring element is ensured by the freewheel in the two coupled and uncoupled end positions. It also reduces power consumption when idling. Overloading of the spring element is prevented. The temperature compensation can be simplified by the end positions. At lower temperatures, the guidance is more difficult, so that the electric motor must be operated for a longer time than at higher temperatures. The running time of the electric motor no longer has to be adjusted - or not so precisely - due to the freewheel in the end positions.
In der Endlage im eingekoppelten Zustand ist die Knaufwelle mit dem Schließbart gekoppelt. In der Endlage im ausgekoppelten Zustand ist die Knaufwelle nicht mit dem Schließbart gekoppelt.In the end position in the coupled state, the knob shaft is coupled to the cam. In the end position in the uncoupled state, the knob shaft is not coupled to the cam.
Die Welle des Elektromotors kann eine Schneckenwelle mit einer schraubenförmigen Windung haben. Das Federelement ist dann direkt oder indirekt mit dieser schraubenförmigen Windung gekoppelt, um das Kupplungsglied axial zu bewegen.The shaft of the electric motor can have a worm shaft with a helical turn. The spring element is then coupled directly or indirectly to this helical turn in order to move the coupling member axially.
Hierzu ist denkbar, dass die Kupplungsvorrichtung eine auf der Schneckenwelle verschiebbar angeordnete Hülse aufweist, die mit der schraubenförmigen Windung zur axialen Bewegung der Hülse relativ zum Elektromotor bzw. zur Schneckenwelle bei Rotation der Schneckenwelle gekoppelt ist.For this purpose, it is conceivable that the coupling device has a sleeve which is arranged displaceably on the worm shaft and which is coupled to the helical turn for axial movement of the sleeve relative to the electric motor or the worm shaft when the worm shaft rotates.
Das Federelement kann mit seinem proximalen Ende mit der Hülse verbunden sein und in den Zwischenraum der schraubenartigen Windung der Schraubenwelle eintauchen. Damit dient ein Endabschnitt des Federelementes als ein in der schraubenförmigen Windung geführter Stift.The spring element can be connected with its proximal end to the sleeve and can dip into the space between the helical turn of the screw shaft. An end section of the spring element thus serves as a pin guided in the helical turn.
Denkbar ist aber auch, dass die Hülse selbst ein Innengewinde hat, die in die schraubenförmige Windung der Schneckenwelle eingreift.But it is also conceivable that the sleeve itself has an internal thread that engages in the helical turn of the worm shaft.
Das Federelement kann eine schraubenförmige Druckfeder sein. Diese ist sehr kompakt und unterstützt die axiale Kraftübertragung und bietet eine Federelastizität in Rotationsrichtung der Welle sowie zusätzlich einen hinreichenden Verdrehschutz. Vorteilhaft ist, wenn maximal ein Federelement, d.h. genau eine Feder, zwischen der Welle und dem Kupplungsglied angeordnet ist.The spring element can be a helical compression spring. This is very compact and supports the axial transmission of force and offers spring elasticity in the direction of rotation of the shaft as well as adequate protection against rotation. It is advantageous if a maximum of one spring element, i.e. exactly one spring is arranged between the shaft and the coupling member.
Vorteilhaft ist, wenn ein Bohrschutzelement in der Knaufwelle auf der Seite des Elektromotors angeordnet ist, die der Welle gegenüberliegt. Somit ist nicht nur der Elektromotor in den Innenraum der Knaufwelle eingebaut, sondern zusätzlich ein unmittelbar an den Elektromotor angrenzendes oder im Abstand von dem Elektromotor angeordnetes Bohrschutzelement. Dieses schützt die Kupplungsvorrichtung vor Manipulation, so dass sich die Kupplungsvorrichtung auf der sicheren Seite des Schließzylinders befindet.It is advantageous if a drill protection element is arranged in the knob shaft on the side of the electric motor that is opposite the shaft. Thus, not only is the electric motor built into the interior of the knob shaft, but also a drill protection element which is directly adjacent to the electric motor or is arranged at a distance from the electric motor. This protects the coupling device from manipulation, so that the coupling device is on the safe side of the lock cylinder.
Die Knaufwelle kann mehrere Rastpositionen zur Befestigung des Betätigungsknaufs haben. Hierzu sind in den axial voneinander beabstandeten Ratspositionen Rastnuten in der Knaufwelle vorhanden. Der Betätigungsknauf hat radial verschiebbar und mittels Befestigungsschrauben kraftschlüssig an dem Betätigungsknauf festlegbare Schieberelemente, die in der vorgesehenen Rastposition in die jeweilige Rastnut eintauchen.The knob shaft can have several locking positions for fastening the actuating knob. For this purpose, locking grooves are provided in the knob shaft in the axially spaced apart positions. The actuating knob has slide elements that are radially displaceable and non-positively fixable on the actuating knob by means of fastening screws, which slide into the respective locking groove in the intended locking position.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels mit den beigefügten Zeichnungen näher erläutert. Es zeigen:
- Figur 1 -
- Seiten-Schnittansicht eines Schließzylinders im eingekoppelten Zustand;
- Figur 2 -
- Seiten-Schnittansicht eines Schließzylinders im ausgekoppelten Zustand;
- Figur 3 -
- Schnittansichten der Verrastung des Betätigungsknaufs an der Knaufwelle mit Hilfe von Schieberelementen;
- Figur 4 -
- Perspektivische Ausschnittsansicht des Schließzylinders im Bereich der Schneckenwelle;
- Figur 5 -
- Vergrößerte Ansicht des Ausschnitts A in der
.Figur 4
- Figure 1 -
- Side sectional view of a lock cylinder in the coupled state;
- Figure 2 -
- Side sectional view of a lock cylinder in the uncoupled state;
- Figure 3 -
- Sectional views of the latching of the actuating knob on the knob shaft with the aid of slide elements;
- Figure 4 -
- Perspective detail view of the lock cylinder in the area of the worm shaft;
- Figure 5 -
- Enlarged view of section A in the
Figure 4 .
In das Zylindergehäuse 2 ist weiterhin eine Knaufwelle 4 eingesetzt, die dort rotierbar gelagert ist. An das aus dem Zylindergehäuse 2 herausragende Ende der Knaufwelle 4 kann ein Betätigungsknauf 5 aufgesetzt werden.In the
In dieser Knaufwelle 4 ist eine Kupplungsvorrichtung 5 eingebaut, die zur mechanischen Kopplung der Knaufwelle 4 mit dem Schließbart 3 ausgebildet ist. Diese Kupplungsvorrichtung 5 hat einen Elektromotor 6 mit einer Welle 7. Der Elektromotor wird mit einer nicht dargestellten Ansteuerelektronik angesteuert. Diese Ansteuerelektronik kann vorzugsweise einen Funksignalempfänger haben, um Öffnungs- bzw. Schließsignale drahtlos zu empfangen. Der Funksignalempfänger kann zum Nahfeld-(NFC, z.B. RFID) und/oder Fernfeldempfang (z.B. Bluetooth, ZigBee, WiFi) ausgebildet sein.In this knob shaft 4 a
Auf der Welle 7 des Elektromotors 6 ist eine Schneckenwelle 8 aufgesetzt, die beim Rotieren der Welle 7 mit dieser mit dreht. Auf dieser Schneckenwelle 8 ist eine Hülse 9 axial in Erstreckungsrichtung der Welle 7 verschiebbar angeordnet. An dem Außenumfang der Hülse 9 ist ein Federelement 10 in Form einer Schraubenfeder (bspw. Druckfeder) befestigt. Der dem Elektromotor 6 am nächsten liegende proximale Endabschnitt des Federelementes 10 ist drehfest mit der Hülse 9 verbunden. Dieses Ende des Federelementes 10 steht mit der Schneckenwelle 8 in Verbindung, um bei einer Rotation der Schneckenwelle 8 eine axiale Verschiebung zu bewirken. Denkbar ist aber auch, dass die Hülse 9 mit einem Innengewinde auf das Außengewinde der Schneckenwelle 8 geschraubt ist, um auf diese Weise eine axiale Verschiebung der Hülse 9 bei Rotation der Schneckenwelle 8 zu bewirken.A
In dem dargestellten Ausführungsbeispiel ist das Federelement 10 mit dem distalen Ende mit dem Kupplungsglied 11 drehfest verbunden ist. Es ist mit seinem gegenüberliegenden proximalen Ende ebenso drehfest mit der Hülse 9 verbunden. Die Hülse 9 ist axial verschiebbar auf der Schneckenwelle 8, des Elektromotors 6 geführt. Ein Querabschnitt des proximalen Endabschnitts des Federelementes 10 ist quer durch die Innenbohrung 15 der Hülse 9 geführt. Damit kann dieser Querabschnitt 14 in dem Zwischenraum der schraubenförmigen Windung der Schneckenwelle 8 geführt werden, um die Hülse 9 bei einer Rotation der Schneckenwelle 8 axial auf der Welle 7 des Elektromotors 6 hin- und her zu bewegen. Damit wird ein Spannen oder Entspannen des Federelementes 10 bewirkt und das Kupplungsglied 11 am distalen Ende des Federelementes 10 in Richtung des Innenraums der Knaufwelle 4 hinein bewegt oder aus der stirnseitigen Öffnung der Knaufwelle 4 zum Einkuppeln in den Schließbart 3 heraus bewegt.In the exemplary embodiment shown, the
Der distale Endabschnitt des Federelementes 10 ist mit einem Kupplungsglied 11 verbunden, dessen Endabschnitt eine an eine Kupplungskontur des Schließbartes 3 angepasste Kontur hat, um im eingekoppelten Zustand drehfest mit dem Schließbart 3 zu verkoppeln. Dieser eingekuppelte Zustand wird spätestens dann erreicht, wenn das Kupplungsglied 11 weitest möglich aus der Knaufwelle 4 stirnseitig herausragt. Das Kupplungsglied 11 ist formschlüssig mit dem Schließbart 3 verbunden. Dies ist in der
In der
Das Kupplungsglied 11 ist axial verschiebbar in der Knaufwelle 4 gelagert. Es kann drehfest mit der Knaufwelle 4 verbunden sein, um sich im ein- und ausgekoppelten Zustand bei Rotation der Knaufwelle 4 mitzubewegen.The
Das Kupplungsglied 11 hat in dem dargestellten Ausführungsbeispiel eine Führungshülse 12, welche mit ihrem Außenumfang an einer Innenwand der Knaufwelle 4 anliegt und axial verschiebbar im Innenraum der Knaufwelle 4 gelagert. Diese Führungshülse 12 erstreckt sich von der Stirnseite der Knaufwelle 4, die dem Schließbart 3 zugewandt ist, in Richtung des Elektromotors 6. Das Kupplungsglied 11 ist drehfest in der Knaufwelle 4 gelagert, so dass es sich bei Rotation der Schneckenwelle 8 nicht mitdreht, sondern nur axial beweglich ist. Hierzu kann die Knaufwelle 4 eine Führungsnut haben, in die ein Führungsabschnitt des Kupplungsgliedes 11 eintaucht. Denkbar ist aber auch, dass ein Führungsblech 15 auf die Stirnseite der Knaufwelle 4 aufgeschraubt ist, in dem das Kupplungsglied 11 drehfest geführt ist.In the exemplary embodiment shown, the
In dem dargestellten Ausführungsbeispiel ist das Kupplungsglied 11 mehrteilig ausgeführt, um die Montage zu erleichtern. Denkbar ist aber auch, dass das Kupplungsglied 11 mit der Führungshülse 12 ebenfalls einteilig ist.In the illustrated embodiment, the
In den beiden eingekoppelten und ausgekoppelten Endlagen, die in den
Erkennbar ist weiterhin, dass an der Seite der Knaufwelle 4, die der Kupplungsvorrichtung 5 abgewandt ist, ein Bohrschutzelement 13 in dem Innenraum der Knaufwelle 4 angeordnet ist. Das Bohrschutzelement 13 trennt den zum Betätigungsknauf 5 hin gerichtete unsichere Seite von der von Betätigungsknauf 5 aus gesehen hinter dem Bohrschutzelement 13 gelegenen unsicheren Seite des Schließzylinders 1, auf der sich die Kupplungsvorrichtung 5 befindet.It can also be seen that a
Für eine Anpassung der Länge des Schließzylinders 1 an eine jeweilige Türblattdicke kann das Zylindergehäuse 2 optional durch Verlängerungsscheiben verlängert werden, die auf die Stirnseite benachbart zum Betätigungsknauf 5 aufgeschraubt werden. Hierzu hat das Zylindergehäuse 2 stirnseitig Gewindebohrungen 14 zur Aufnahme von Befestigungsschrauben für die Verlängerungsscheiben.In order to adapt the length of the
Der Betätigungsknauf 5 kann an mehreren Positionen auf der Knaufwelle 4 fixiert werden. Hierzu sind an der Knaufwelle 4 Rastnuten 15 in den vorgegebenen Rastpositionen vorhanden.The
Die Ansicht (b) zeigt den Schnitt durch die Schieberelemente 16a, 16b. Es ist erkennbar, dass die Rastnut 15 im Schnitt mehreckig ist und um den Umfang der Knaufwelle 4 herum läuft. Die Schieberelemente 16a, 16b haben ein hieran angepasstes Ende mit zwei voneinander beabstandeten seitlichen Gabelzungen, welche den Betätigungsknauf 5 drehfest an der Knaufwelle 4 durch Formschluss der Gabelzungen mit der mehreckigen Kontur der Rastnut 15 koppeln. Durch leichtes Lösen der Befestigungsschrauben 17 können die Schieberelemente 16a, 16b nach außen geschoben werden, so dass diese nicht mehr in die Rastnut 15 eintauchen. Der Betätigungsknauf 5 kann dann axial auf der Knaufwelle 4 in eine andere Rastposition verschoben werden, um dort wieder an der dortigen Rastnut 15 festgelegt zu werden.The view (b) shows the section through the
Erkennbar ist weiterhin, dass der proximale Endabschnitt in stirnseitige Mulden der Hülse eingelegt ist. Damit wird verhindert, dass sich der proximale Endabschnitt radial nach außen verlagern und damit aus dem Eingriff der Schneckenwelle 8 gelangen kann.It can also be seen that the proximal end section is inserted into the frontal recesses of the sleeve. This prevents the proximal end section from being displaced radially outward and thus being able to disengage the
Claims (8)
dadurch gekennzeichnet, dass
das Kupplungsglied (11) in Erstreckungsrichtung der Knaufwelle (4) axial verschiebbar an der Knaufwelle (4) gelagert ist und eine zur mechanischen Kopplung mit dem Schließbart (3) ausgebildete Kontur hat, und dass das Federelement (10) mit einem distalen Endabschnitt mit dem Kupplungsglied (11) verbunden und mit dem gegenüberliegenden proximalen Endabschnitt axial verschiebbar mit der Welle (7) des Elektromotors (6) gekoppelt ist, um eine Rotation der Welle (7) in eine Linearbewegung des proximalen Endabschnittes des Federelementes (10) umzusetzen.Lock cylinder (1) with a cylinder housing (2), a lock bit (3) rotatably mounted in the cylinder housing (2), a knob shaft (4) rotatably mounted in the cylinder housing (2), a coupling device (5) in the knob shaft (4) for mechanical Coupling of the knob shaft (4) with the lock bit (3) and control electronics which are connected to the coupling device (5) with the coupling device (5) for the electronic coupling and decoupling of the knob shaft (4) and lock bit (3), wherein the The coupling device (5) has an electric motor (6) with a shaft (7), a spring element (10) and a coupling member (11),
characterized in that
the coupling member (11) is mounted axially displaceably on the knob shaft (4) in the direction of extension of the knob shaft (4) and has a contour designed for mechanical coupling with the locking bit (3), and that the spring element (10) with a distal end section with the Coupling member (11) is connected and the opposite proximal end portion is axially displaceably coupled to the shaft (7) of the electric motor (6) in order to convert a rotation of the shaft (7) into a linear movement of the proximal end portion of the spring element (10).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019113666.0A DE102019113666B4 (en) | 2019-05-22 | 2019-05-22 | Electric locking cylinder for a lock |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3741934A1 true EP3741934A1 (en) | 2020-11-25 |
Family
ID=70802609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP20175694.7A Withdrawn EP3741934A1 (en) | 2019-05-22 | 2020-05-20 | Locking cylinder |
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EP (1) | EP3741934A1 (en) |
DE (1) | DE102019113666B4 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022128480A1 (en) * | 2020-12-18 | 2022-06-23 | Assa Abloy Ab | Coupling arrangement for lock device, and lock device |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998015703A1 (en) | 1996-10-08 | 1998-04-16 | Lucky Lock Ltd. | Electro-mechanical lock |
EP1522658B1 (en) | 2003-10-10 | 2006-08-16 | CISA S.p.A. | Electric lock with magnetic support of the coupling element |
EP1576246B1 (en) | 2002-12-23 | 2006-08-30 | Kaba AG | Locking device |
EP2275628A2 (en) * | 2009-07-15 | 2011-01-19 | M. van der Wal Holding B.V. | Length-adjustable knob lock cylinder |
US20120260704A1 (en) * | 2011-04-14 | 2012-10-18 | Ferreira Sanchez Carlos | Clutch mechanism for electromechanical lock cylinders |
US20130305792A1 (en) * | 2012-05-15 | 2013-11-21 | Wfe Technology Corp. | Actuating motor set of electronic |
EP2927395A1 (en) | 2014-04-03 | 2015-10-07 | DOM Sicherheitstechnik GmbH & Co. KG | Clutch assembly for a lock cylinder with double strike spring |
EP2959081A1 (en) * | 2013-02-19 | 2015-12-30 | Iseo Serrature S.p.A. | Electromechanical control device for an operating cam of a cylinder lock |
-
2019
- 2019-05-22 DE DE102019113666.0A patent/DE102019113666B4/en not_active Withdrawn - After Issue
-
2020
- 2020-05-20 EP EP20175694.7A patent/EP3741934A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998015703A1 (en) | 1996-10-08 | 1998-04-16 | Lucky Lock Ltd. | Electro-mechanical lock |
EP1576246B1 (en) | 2002-12-23 | 2006-08-30 | Kaba AG | Locking device |
EP1522658B1 (en) | 2003-10-10 | 2006-08-16 | CISA S.p.A. | Electric lock with magnetic support of the coupling element |
EP2275628A2 (en) * | 2009-07-15 | 2011-01-19 | M. van der Wal Holding B.V. | Length-adjustable knob lock cylinder |
US20120260704A1 (en) * | 2011-04-14 | 2012-10-18 | Ferreira Sanchez Carlos | Clutch mechanism for electromechanical lock cylinders |
US20130305792A1 (en) * | 2012-05-15 | 2013-11-21 | Wfe Technology Corp. | Actuating motor set of electronic |
EP2959081A1 (en) * | 2013-02-19 | 2015-12-30 | Iseo Serrature S.p.A. | Electromechanical control device for an operating cam of a cylinder lock |
EP2927395A1 (en) | 2014-04-03 | 2015-10-07 | DOM Sicherheitstechnik GmbH & Co. KG | Clutch assembly for a lock cylinder with double strike spring |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022128480A1 (en) * | 2020-12-18 | 2022-06-23 | Assa Abloy Ab | Coupling arrangement for lock device, and lock device |
Also Published As
Publication number | Publication date |
---|---|
DE102019113666A1 (en) | 2020-11-26 |
DE102019113666B4 (en) | 2022-09-29 |
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