EP3348751A1 - Electronic locking cylinder - Google Patents

Abstract

An electronic lock cylinder (10) comprising a cylindrical housing (12) having an axial passage (14), a shaft (18) rotatably mounted in the axial passage (14) and a lock bit (20) rotatably coupled to the shaft (18) the cylinder housing (12) is adapted to be axially extended by means of housing extension elements (22), and wherein a first handle (24) and a second handle (26) are respectively arranged on the cylinder housing (12), with simple structural means to allow a simple and accurate length adjustment in handling, designed and further developed such that the first handle (24) has access electronics (28) for wireless communication with an electronic identification carrier (30), wherein the access electronics (28) is set up, in the case of existing access authorization of the

Identification carrier (30) to generate a release signal that the second handle (26) is connected to the shaft (18), wherein the axial position of the second handle (26) relative to the shaft (18) is adjustable, and that the second handle ( 26) is designed such that it can accommodate an excess length of the shaft (18) in the interior (32) of the second handle (26).

Description

The invention relates to an electronic lock cylinder, comprising a cylinder housing with axial passage, a rotatably mounted in the axial passage shaft and a rotatably coupled to the shaft cam, wherein the cylinder housing is adapted to be axially extended by means of housing extension elements, and wherein on the cylinder housing each end a first handle and a second handle are arranged.

Lock cylinder and electronic lock cylinders are known from the prior art. To provide a suitable lock cylinder for a door leaf, the thickness of the door leaf (door leaf thickness) may need to be measured with door fitting and compared with available in different lengths lock cylinders to a Obtain lock cylinder in the appropriate length and install. Subsequent adaptation is not possible, so that a locking cylinder must be procured again in case of measuring errors.

Meanwhile, modular lock cylinders are known which are adaptable by means of housing members available in different lengths within certain limits in length, as in EP 2 525 022 A2 described. However, this requires regular professionals, so that the end customer waiting time and due to the assembly work and possibly to be procured housing elements may also have to accept further costs. Another solution for length adjustment is in DE 10 2013 012 888 A1 shown, wherein the local arrangement consists of a plurality of individual components and is therefore structurally complex.

The invention has for its object to provide a simple and accurate length adjustment in a lock cylinder with simple design means in handling. It is desirable that such a length adjustment can also be made by end customers.

The invention achieves the above object by an electronic lock cylinder having the features of claim 1. Thereafter, the lock cylinder is characterized in that the first handle has an access electronics (RFID electronic unit) for wireless communication with an electronic identification carrier (RFID transponder), wherein the access electronics is adapted to generate a release signal when the access authorization of the identification carrier that the second handle is connected to the shaft, wherein the axial position of the second handle is adjustable relative to the shaft, and that the second handle is designed such that it can accommodate an excess length of the shaft in the interior of the second handle.

The proposed lock cylinder has the advantage that with simple structural means an accurate adjustment of the axial length of the lock cylinder to a thickness of a door leaf (door leaf thickness) and possibly mounted on the door panel can be done. If necessary, the cylinder housing can initially be roughly adjusted to the door leaf thickness with housing extension elements. The housing extension elements can be enclosed with the lock cylinder so that the worker or the end customer can adapt the lock cylinder directly at the installation site. A (fine) adjustment can be made by adjusting the axial position of the second handle relative to the shaft. This is a particularly easy to perform adjustment in the installed state of the lock cylinder possible. A millimeter precision tuning can be made, in particular continuously.

The access electronics are allotted to the first handle, so that a cabling effort is low and wiring between the two handles can be avoided. This has the advantage that the second handle can be completely optimized to receive an excess length of the shaft in its interior (interior of the second handle). Thus, the second handle may have a particularly large space for receiving excess wavelength, since this does not have to accommodate electronic components. This results in a correspondingly large possible adjustment range available for adaptation of the lock cylinder.

The lock cylinder is in particular a length-adjustable electronic lock cylinder. The lock cylinder is used to operate a mortise lock, which is installed in a door leaf. The cam of the lock cylinder is used to actuate a lock mechanism of the mortise lock.

The handles can each be designed as knobs (door knobs). The first handle may be an external handle (outside knob) located on the outside of a door (unsecured side). The second handle can be an inner handle (inner knob), which is arranged on the inside of a door (secured side). The shaft can be axially secured by a securing element in the cylinder housing, for example by a retaining ring (snap ring).

As part of a preferred embodiment, cooperating with the access electronics coupling means may be provided which is adapted to couple the first handle to the shaft as a result of the release signal. As a result, a secure access control can be realized as an actuation of the Schließbarts and thus a mortise lock is only possible with existing access authorization.

The coupling device may have a drive source, in particular an electric motor which actuates the coupling device (disengaging and engaging). In the first handle, an energy storage device can be arranged, which serves to supply power to the access electronics and / or coupling device.

Advantageously, the coupling device can be arranged in a journal section, via which the first handle is rotatably mounted in the passage of the cylinder housing. In this way, a compact and secure design of the coupling device is achieved, since this is arranged in the cylinder housing. Manipulations are thus considerably more difficult. The pin portion is fixedly connected to the first handle, so that the first handle is rotatably coupled via the pin portion with the cylinder housing. The pin portion is axially secured by means of a securing element in the cylinder housing, in particular by means of a retaining ring (snap ring).

Conveniently, the coupling device may comprise a coupling element which is displaceable in such a way that it engages, in particular as a result of the release signal for coupling, with a receptacle formed on the shaft. This allows a structurally simple and reliable coupling between the first handle and the shaft. The coupling element may be displaceable in the axial direction of the pin portion and / or the passage of the cylinder housing. The coupling element may be formed as a cuboid section, in particular with coupling wings. The shaft may have on the in the installed state of the first handle end facing a corresponding with the coupling element receptacle, in particular one or more open in the axial direction recesses.

Specifically, the second handle may be coupled directly to the shaft, in particular by means of a threaded connection. This realizes a structurally simple connection with the smallest possible number of components. A reliable fine positioning between shaft and second handle is allows. For this purpose, the shaft has an external thread and the second handle has a recess, for example a blind hole, with a corresponding internal thread. For a particularly fine adjustment is conceivable that the threads are designed as fine thread.

Advantageously, the second handle can be fixed in the set position on the shaft, so that the second handle and the shaft are rotatably coupled together. This ensures that a set position of the second handle on the shaft is maintained. The second handle may have a threaded bore, which opens into the interior or the recess of the second handle. By means of a threaded pin (grub screw), the second handle can be fixed to the shaft. The shaft may have a longitudinal slot into which the grub screw can engage.

In a preferred embodiment, the access electronics can be arranged exclusively on or in the first handle. The access electronics is thus concentrated as a compact unit in the first handle, whereby the cabling can be kept low. Access electronics and coupling device can be easily connected and matched. The other components of the lock cylinder, for example, the second handle can thus be optimized for their function. The second handle can thus also accommodate a large excess length of the shaft.
Conveniently, the cylinder housing may have two preferably identical housing sections, which are coupled or coupled together by means of a connector arranged axially between the housing sections. This is a modular design of the Lock cylinder realized with ease of mounting. By designing the housing sections as identical parts, the production favors and simplifies storage and spare parts procurement.

Advantageously, the housing sections may be configured such that one or more of the housing extension elements are respectively inserted between the connector and one of the housing sections. This has the advantage that the coupling of other components, for example, the first and second handle, regardless of the configuration of the lock cylinder remains the same. The stability of the lock cylinder is ensured to the outside (axial end). The housing extension elements can thus be arranged in a secure manner in the central region of the lock cylinder and thus inside a door leaf.

Specifically, the housing sections and / or the housing extension elements may each have a recess for receiving a projecting from the connector pin portion. As a result, a simple and quick installation and adjustment of the lock cylinder allows. The connector has in particular two in the opposite direction (axial direction) projecting pin portions.

Conveniently, the housing sections may each have a threaded bore and one or more of the housing extension elements may be fastened or fastened by means of a screw on one of the housing sections. As a result, a stable connection between the housing sections and the housing extension elements is made possible, this adjustment can be carried out on the basis of the screw with standard tools and by an end user.

Concretely, the housing extension elements may have a through opening for a screw for attachment to the threaded bore of one of the housing sections. This allows a quick installation or adjustment of the lock cylinder, since the screw can be inserted through the through hole and screwed into the housing section.

Specifically, the housing sections and / or the housing extension elements may have a threaded bore opening into the recess, so that the pin sections of the connector can be fastened or fastened in the recess by means of a threaded pin. This ensures the assignment of the components of the lock cylinder. The stability of the lock cylinder is hereby increased and facilitates assembly of the lock cylinder due to a possible fixing of parts.

In a preferred embodiment, the shaft may be formed as a hollow shaft. As a result, the weight of the shaft can be reduced and the energy required for driving can be reduced. In addition, an axially overlapping configuration is thus possible, for example, the pin portion can protrude into the interior of the hollow shaft. The minimum axial length of the cylinder housing can thus be kept low.

The cylinder housing, in particular the housing sections, and the housing extension elements can have an identical cross section (profile cylinder cross section).

Fig.1

eine Ausführungsform des elektronischen Schließzylinders in einer perspektivischen Ansicht;

Fig.2

den Schließzylinder aus Fig.1 in einer perspektivischen Explosionsdarstellung;

Fig.3

den Schließzylinder aus Fig.1 mit eingesetzten Gehäuseverlängerungselementen in einer Seitenansicht; und

Fig.4

den Schließzylinder aus Fig.3 in einer perspektivischen Explosionsdarstellung.

The invention is explained in more detail below with reference to the figures, wherein identical components with identical Reference numerals are provided. For reasons of clarity, not all components are shown in each figure and identical components are sometimes provided only once with reference symbols. Show it:

Fig.1

an embodiment of the electronic lock cylinder in a perspective view;

Fig.2

the lock cylinder off Fig.1 in a perspective exploded view;

Figure 3

the lock cylinder off Fig.1 with inserted housing extension elements in a side view; and

Figure 4

the lock cylinder off Figure 3 in a perspective exploded view.

FIG. 1 shows an electronic lock cylinder, which is generally designated by the reference numeral 10. The lock cylinder 10 has a cylinder housing 12 with an axial passage 14 which extends along a longitudinal axis 16 of the lock cylinder 10 (see FIG. 2 and 4 ).

In the axial passage 14, a shaft 18 is mounted. A cam 20 is rotatably coupled to the shaft 18. The cylinder housing 12 is adapted to be extended axially by means of housing extension elements 22 (see FIG. 3 and 4 ).

On the cylinder housing 12, a first handle 24 and a second handle 26 are arranged at each end (see FIG. 1 ). The first handle 24 has a Access electronics 28 (not shown) for wireless communication with an electronic identification carrier 30 on. The access electronics 28 is configured to generate an enable signal when the access authorization of the identification carrier 30 is present.

The second handle 26 is connected to the shaft 18, wherein the axial position of the second handle 26 is adjustable relative to the shaft 18 (see FIG. 2 and 4 ). The second handle 26 is designed such that it can accommodate an excess length of the shaft 18 in the interior 32.

The first handle 24 provides an outer handle (unsecured side) and the second handle 26 represents an inner handle 26 (secured side). The first handle 24 and the second handle 26 are each formed as a knob (doorknob).

Furthermore, a coupling device 34 cooperating with the access electronics 28 is provided, which is set up to couple the first handle 24 to the shaft 18 as a result of the release signal. The coupling device 34 is arranged in a journal section 36, via which the first handle 24 is rotatably mounted in the passage 14. The pin portion 36 is connected to the first handle 24. The clutch device 34 has an electric motor as the drive source, which actuates the clutch device 34 (not shown).

The coupling device 34 has a coupling element 38 which is displaceable by the electric motor in such a way that it engages for coupling with a receptacle 40 formed on the shaft 18. The Coupling element 38 has coupling wings, which extend in the radial direction from a central longitudinal axis of the pin portion 36 away.

The receptacle 40 is in the form of a plurality of recesses 42, which are formed on the end of the shaft 18 facing the first handle 24. For coupling, the coupling element 38 is moved along the longitudinal axis 16 to the shaft 18. A disengagement takes place by displacement of the coupling element 38 in the opposite direction.

The second handle 26 is directly coupled to the shaft 18, by means of a threaded connection. The shaft 18 has an external thread 44 and the second handle 26 has a recess 46 (blind hole) with a corresponding internal thread 48. The lateral surface of the recess 46 encloses the interior 32 of the second handle 26 (interior of the second handle 26).

The second handle 26 is fixable in the set position on the shaft 18, so that the second handle 26 and the shaft 18 are rotatably coupled together. This can be done by means of a shaft 18 acting on the threaded pin 49. The threaded pin 49 can engage in a longitudinal slot 51 of the shaft or act on the external thread 44. Since the cam 20 is also rotatably coupled to the shaft 18, the second handle 26 is also rotatably coupled to the cam 20. The rotationally fixed coupling between the lock bit 20 and shaft 18 can be effected by means of a shaft 18 acting on the threaded pin 50 or a groove connection (not shown).

The access electronics 28 is arranged exclusively in the first handle 24. The first handle 24 has a removable cap 52, whereby the access electronics 28th becomes accessible and an energy storage (battery) can be replaced (not shown). A manipulation, for example, by replacing the access electronics 28, is not possible because the access electronics 28 and the coupling device 34 are electronically paired with each other (fixed assignment).

The cylinder housing 12 has two identical housing sections 54, which can be coupled or coupled to one another by means of a connector 56 arranged axially between the housing sections 54. The connector 56 has a connector body 66 with a threaded hole 58 for a forend screw, by means of which the lock cylinder 10 can be attached to a mortise lock (not shown). By the connector body 66, the minimum distance of the housing sections 54 is predetermined (gap), wherein in this intermediate space and the cam 20 is arranged.

The housing sections 54 are configured such that one or more of the housing extension elements 22 are respectively inserted between the connector 56 and one of the housing sections 54. The housing sections 54 and / or the housing extension elements 22 each have a recess 60, 62 for receiving a pin section 54 projecting from the connector 56. The pin portions 54 protrude in the opposite direction from the connector body 66.

The housing sections 54 each have a threaded bore 67 and one or more of the housing extension elements 22 are fastened or fastened by means of a screw 68 on one of the housing sections 54 (see FIG. 3 and 4 ).

The housing extension elements 22 have a passage opening 70 for the screw 68 for attachment to the threaded bore 67 of one of the housing sections 54.

The housing sections 54 and / or the housing extension elements 22 have an opening into the recess 60, 62 threaded bore 72, 74, so that the pin portions 64 of the connector 56 by means of a threaded pin 76 (grub screw) in the recess 60, 62 can be fastened or attached.

The shaft 18 has a circumferential groove 78 and is secured by means of a securing element in the form of a retaining ring 80 (snap ring) on the cylinder housing 12 and a housing portion 54. For this purpose, the securing ring 80 is inserted into a first slot 82 formed in the housing section 54. The shaft 18 is formed as a hollow shaft.

• Die erste Handhabe 24 ist mittels des Zapfenabschnitts 36 drehbar in dem axialen Durchgang 14 gelagert und kann durch einen Passanten entsprechend gedreht werden. Befindet sich kein eine Zutrittsberechtigung tragender Identifikationsträger 30 in Lesereichweite der Zutrittselektronik 28, erzeugt die Zutrittselektronik 28 kein Freigabesignal. Die erste Handhabe 24 kann zwar gedreht werden, allerdings ist diese (noch) nicht mit der Welle 18 gekoppelt, so dass der Schließbart 20 nicht betätigt und die mit dem Schließzylinder 10 ausgestattete Tür nicht geöffnet werden kann.

The pin portion 36 has a circumferential groove 84 and is secured by means of a securing element in the form of a retaining ring 86 (snap ring) on the cylinder housing 12 and a housing portion 54. For this purpose, the securing ring 86 is inserted into a second slot 88 formed in the housing section 54. At least the first handle 24 facing housing portion 54 has a recess 90 into which a Bohrschutzstift 92 is inserted.
FIG. 3 and FIG. 4 show a configuration in which the lock cylinder 10 is extended by housing extension elements 22. In each case, three housing extension elements 22 are inserted between each housing section 54 and the connector 56. The housing extension elements 22 are screwed by means of the screw 68 to one of the housing sections 54. The electronic lock cylinder 10 works as follows:

• The first handle 24 is rotatably supported by the pin portion 36 in the axial passage 14 and can be rotated accordingly by a passer. If there is no identification carrier 30 carrying an access authorization in reading range of the access electronics 28, the access electronics 28 do not generate a release signal. Although the first handle 24 can be rotated, but this is not (yet) coupled to the shaft 18, so that the cam 20 is not actuated and equipped with the lock cylinder 10 door can not be opened.

The second handle 26 is rotatably coupled to the shaft 18 and the cam 20. An operation of the Schließbarts 20 and thus an opening of the door equipped with the lock cylinder 10 is always made possible by the second handle 26 (secured page), regardless of whether a release signal is present or not.

If an identification carrier 30 carrying an access authorization is brought to the first handle 24 so that the identification carrier 30 is within read range of the access electronics 28, the access electronics 28 generate an enable signal when the identification carrier 30 is present. Then, the coupling device 34 is actuated, wherein the electric motor displaces the coupling element 38 along the longitudinal axis 16 in the direction of the shaft 18, so that the coupling element 38 engages in the receptacle 40.

By turning the first handle 24 and the shaft 18 is then rotated so that a mortise lock of the door equipped with the lock cylinder 10 can be actuated via the rotatably connected to the shaft 18 cam 20. A door opening is then possible.

After successful operation of the shaft 18 and cam 20, the coupling element 38 and the receptacle 40 are disengaged. This can be done by timing or by sensing a successful operation, for example by the access electronics 28. A door opening is then no longer possible by means of the first handle 24.

Claims (14)

An electronic lock cylinder (10) comprising a cylindrical housing (12) having an axial passage (14), a shaft (18) rotatably mounted in said axial passage (14) and a lock bit (20) rotatably coupled to said shaft (18) Cylinder housing (12) is adapted to be axially extended by means of housing extension elements (22), and wherein on the cylinder housing (12) each end a first handle (24) and a second handle (26) are arranged, characterized in that the first Handle (24) has access electronics (28) for wireless communication with an electronic identification carrier (30), wherein the access electronics (28) is adapted to generate an enable signal when the access authorization of the identification carrier (30) that the second handle (26 ) is connected to the shaft (18), wherein the axial position of the second handle (26) relative to the shaft (18) is adjustable, and that the second Handle (26) is designed such that it can accommodate an excess length of the shaft (18) in the interior (32) of the second handle (26). Lock cylinder (10) according to claim 1, characterized in that with the access electronics (28) cooperating coupling means (34) is provided, which is adapted to couple the first handle (24) with the shaft (18) as a result of the release signal. Locking cylinder (10) according to claim 2, characterized in that the coupling device (34) in a pin portion (36) is arranged, via which the first handle (24) is rotatably mounted in the passage (14). Locking cylinder (10) according to claim 2 or 3, characterized in that the coupling device (34) has a coupling element (38) which is displaceable in such a way that it engages with a receptacle (40) formed on the shaft (18) for coupling arrives. Locking cylinder (10) according to one of the preceding claims, characterized in that the second handle (26) is coupled directly to the shaft (18), in particular by means of a threaded connection. Lock cylinder (10) according to one of the preceding claims, characterized in that the second handle (26) in the adjusted position on the shaft (18) is fixable, so that the second handle (26) and the shaft (18) rotatably coupled together are. Lock cylinder (10) according to one of the preceding claims, characterized in that the access electronics (28) is arranged exclusively on or in the first handle (24). Lock cylinder (10) according to one of the preceding claims, characterized in that the cylinder housing (12) has two preferably identical housing sections (54) which are connected by means of an axially between the housing sections (54). arranged connector (56) can be coupled or coupled together. Lock cylinder (10) according to claim 8, characterized in that the housing sections (54) are adapted to one or more of the housing extension elements (22) respectively between the connector (56) and one of the housing sections (54) are used. Locking cylinder (10) according to claim 8 or 9, characterized in that the housing sections (54) and / or the housing extension elements (22) each have a recess (60, 62) for receiving a of the connector (56) projecting pin portion (64) , Locking cylinder (10) according to one of claims 8 to 10, characterized in that the housing sections (54) each have a threaded bore (67) and that one or more of the housing extension elements (22) by means of a screw (68) on one of the housing sections (54 ) are fastened or attached. Locking cylinder (10) according to one of claims 8 to 11, characterized in that the housing extension elements (22) have a through opening (70) for a screw (68) for attachment to the threaded bore (67) of one of the housing sections (54). Lock cylinder (10) according to one of claims 8 to 12, characterized in that the housing sections (54) and / or the housing extension elements (22) into the recess (60, 62) opening Threaded bore (72, 74), so that the pin portions (64) of the connector (56) by means of a threaded pin (76) in the recess (60, 62) can be fastened or fastened. Lock cylinder (10) according to one of the preceding claims, characterized in that the shaft (18) is designed as a hollow shaft.

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