EP3696349A1 - Handle for actuating a locking device of a door, window or similar - Google Patents

Abstract

The invention relates to a handle (10) for actuating a locking device of a door, a window or the like. With a handle (12), with a shaft (14) for connection to the locking device and with a coupling device (30) for coupling the handle and Shaft, the handle and the shaft being pivotable about a common pivot axis (16), the coupling device having at least one coupling element (46a, 46b) which is between a coupling position, in which the handle and the shaft are coupled to one another, and a decoupling position , in which the handle and the shaft are decoupled from one another, is movable, the coupling device being arranged at least in sections within an installation space (24) limited by the handle and, in the coupled state, pivoting about the pivot axis when the handle is actuated, and at least a coupling element along a to the pivot axis in radial Ric Attention-oriented displacement path is displaceable.

Description

The invention relates to a handle for actuating a locking device of a door, a window or the like. With a handle, with a shaft for connection to the locking device and with a coupling device for coupling the handle and shaft, the handle and the shaft about a common pivot axis are pivotable, wherein the coupling device has at least one coupling element which between a coupling position in which the handle and the shaft are coupled to one another, and a decoupling position, in which the handle and the shaft are decoupled from each other, is movable, and wherein the coupling device is arranged at least in sections within an installation space limited by the handle and, in the coupled state, pivots about the pivot axis when the handle is actuated.

The aforementioned pushers are from the prior art, for example from the WO 2015/140180 A1 known. Such levers make it possible to selectively establish or interrupt a flow of force between the handle and the locking device and thus to enable or block the opening of a door, window or the like when the handle is operated. This makes it possible in a simple manner, for example, to control access to a building and only grant access to authorized persons.

The present invention is based on the object of providing a lever handle which ensures reliable operation with a particularly compact design.

This object is achieved according to the invention in a lever handle of the type mentioned at the outset in that the at least one coupling element can be displaced along a displacement path oriented in the radial direction relative to the pivot axis.

The lever handle according to the invention is characterized by a particularly compact construction of the coupling device. The fact that the displacement path of the at least one coupling element is oriented in the radial direction can in particular, the space required in the axial direction can be minimized. A handle according to the invention can therefore be made comparatively narrow in the axial direction. This has the advantage that the handle only protrudes to a small extent from a door leaf in an assembled state, as a result of which the risk of people or objects getting caught on the handle can be reduced.

In the coupled position of the at least one coupling element, the handle and the shaft are connected to one another in a rotationally fixed manner about the pivot axis. A pivoting of the handle about the pivot axis thus leads to a pivoting of the shaft and consequently to an actuation of a locking device coupled to the shaft. In the coupled state, a door, a window or the like can be opened by actuating the handle.

In the uncoupling position of the at least one coupling element, the flow of force between the handle and the locking device is interrupted. A pivoting of the handle consequently does not lead to a pivoting of the shaft and thus to no actuation of the locking device. In the uncoupled state, the door, window or the like cannot be opened by actuating the handle.

In particular, with a handle according to the invention, a pivoting movement of the handle about the pivot axis is always possible regardless of a coupling state of the coupling device. In this way - in contrast to pushers, which block a pivoting movement of the handle to lock the locking device - the risk is reduced that a user tries to pivot the handle forcibly if the opening attempt is unsuccessful and thereby damages the lever handle.

It is possible that only one coupling element is provided. It is preferred, however, if several coupling elements are provided, which are preferably arranged distributed along a circumference around the pivot axis. This enables a particularly reliable and low-wear power transmission between the handle and the shaft, since the power transmission is distributed over several coupling elements, so that the shear force applied to the individual coupling elements is lower than when only one is used
Coupling element.

It is particularly preferred if two coupling elements are provided which are offset from one another at an angle of 180 ° around the pivot axis. The displacement paths of the coupling elements then lie on a common displacement axis. This makes it possible to move both coupling elements together between the uncoupling position and the coupling position in a particularly simple manner, which favors a compact design of the coupling device.

The locking device is preferably a mortise lock for mounting in a door leaf. The shaft is preferably designed as a polygon, in particular as a square, and acts with the Locking device together. The shaft preferably engages in the "socket" of a mortise lock.

The handle is preferably designed as a “door handle” or “door handle” with a first leg arranged coaxially to the pivot axis and a second leg arranged at an angle, preferably at right angles, to the first leg. The handle is preferably designed as a hollow body and delimits a central installation space.

In a preferred embodiment, the coupling device has a drive device with at least one eccentric element pivotable about an eccentric axis, the at least one eccentric element engaging the at least one coupling element in order to drive it along the displacement path in at least one first direction. Such a configuration makes it possible to switch the clutch device with comparatively simple structural means. By pivoting the at least one eccentric element about the eccentric axis, the at least one coupling element can be displaced radially to the pivot axis and thus a coupling state of the coupling device can be changed. A drive device described above is also characterized by comparatively little moving parts (no additional gear required), which promotes a particularly robust and reliable function of the coupling device. It is possible for the at least one coupling element to bear against the at least one eccentric element in an initial position with a contact surface. In this case, the at least one eccentric element can drive the at least one coupling element along the displacement path from the initial position in a first direction in the course of a pivoting movement thereof about the eccentric axis. The starting position can be the coupling position. It is particularly preferred, however, if the starting position is the uncoupling position. In this case, the first direction can correspond to the direction of displacement of the coupling element or the coupling elements from the decoupling position into the coupling position.

It is also possible for the at least one coupling element to be connected in an articulated manner to a drive section of the at least one eccentric element. In this case, the at least one eccentric element can drive the at least one coupling element in two mutually opposite directions along the displacement path. A first direction can correspond to the direction of displacement from the decoupling position into the coupling position and the second direction, which is opposite to the first direction, can correspond to the direction of displacement from the coupling position into the decoupling position. In this way, by pivoting the at least one eccentric element about the pivot axis, the coupling device can be repeatedly switched back and forth between the coupled and uncoupled states. The at least one eccentric element is preferably designed as a double eccentric. This makes it possible to drive two coupling elements simultaneously along their respective displacement paths.

It is also preferred if the drive device comprises an electrically operated motor which drives the at least one eccentric in the direction about the eccentric axis.

In the context of a preferred embodiment, the drive device can be arranged within the installation space limited by the handle. In this way, the drive device is protected from environmental influences and / or soiling, which is advantageous for using the lever handle outdoors. In addition, the handle can be designed as a self-functional unit, so that when converting an existing door system with a handle according to the invention, no additional modifications to a door leaf or door frame (e.g. for the spatial integration of a drive device) are required.

It is also preferred if the eccentric axis is aligned parallel, preferably collinear, to the pivot axis. This favors a compact design of the handle, since a drive of the at least one eccentric element can be arranged in a particularly space-saving manner in the part of the handle arranged coaxially to the pivot axis, without the need for an additional gear Drive of the at least one eccentric element is required.

In a further preferred embodiment, the handle has a force application device which is effective along a direction of application and acts on the at least one coupling element in the direction of the coupling position or the uncoupling position. This makes it possible to specify a preferred position of the at least one coupling element. The preferred position can be, for example, the coupling position or the uncoupling position.

It is particularly preferred if the direction of application is oriented such that the at least one coupling element is pressed against the at least one eccentric element by the force application device. This can ensure that the at least one coupling element is always in contact with the at least one eccentric element and a drive movement of the at least one eccentric element can be reliably transmitted to the at least one coupling element.

It is also particularly preferred if the direction of application is oriented along the displacement path and opposite to a displacement direction (drive direction) of the respective coupling element effected by the at least one eccentric element. This enables the respective coupling element - after it has been shifted off its starting position by the at least one eccentric element - returned to its starting position.

It is also preferred if the force application device is designed in the form of a spring device. It is particularly preferred if a separate spring is provided for each coupling element, which spring is aligned parallel to the displacement axis of the respective coupling element. In this way, a reliable application of the at least one coupling element is promoted in a structurally simple and inexpensive manner.

In a further preferred embodiment, the coupling device has a first transmission element connected in a rotationally fixed manner to the handle and a second transmission element connected in a rotationally fixed manner to the shaft, the first and the second transmission element each having a recess assigned to a respective coupling element for receiving the respective one at least in sections Have coupling element. It is particularly preferred if the recesses of the first and the second transmission element are designed as radial bores, which are oriented coaxially to one another in a rest position of the handle.

In the coupling position, the respective coupling element can, at least in sections, both in the recess of the first transmission element assigned to it and in the recess of the second transmission element assigned to it intervention. It is particularly preferred if the at least one coupling element in the coupling position forms a positive connection acting in the direction about the pivot axis both with the first transmission element and with the second transmission element. In this way, a particularly secure transmission of force between the handle and the shaft and thus a particularly reliable actuation of the locking device is made possible.

It is possible that the first transmission element is formed in one piece with the handle and / or that the second transmission element is formed in one piece with the shaft. However, it is particularly preferred if the transmission elements are provided separately from the handle or the shaft. In this way, the coupling device can be designed as a structural unit that is independent of the handle and the shaft. This makes it possible to retrofit "conventional" handles, comprising a handle and a shaft, in a particularly simple manner with a coupling device according to the invention.

Furthermore, it is preferred if the first transmission element and / or the second transmission element are / is designed as a hollow shaft and if either the first transmission element is arranged at least in sections in a receiving space formed by the second transmission element or the second transmission element at least in sections in a space formed by the first Transmission element formed receiving space is arranged. In this way, a particularly compact design of the coupling device is achieved, so that In particular, only comparatively little space is required in the axial direction. It is also preferred if the drive device is arranged at least in sections in the receiving space formed by the external transmission element.

In a further preferred embodiment, the lever includes a control device for controlling the drive device of the coupling device. This makes it possible to control the coupling state of the coupling device and thus to enable or disable the opening of a door or a window.

It is particularly preferred if the control device has access electronics for identifying an authorized person, the access electronics being set up to generate a signal, if the access authorization is present, which causes the drive device to move the at least one coupling element from the uncoupling position to the coupling position. In this way it can be ensured that only authorized persons with the appropriate access authorization can open a door.

It is also particularly preferred if the access electronics are arranged in the handle. This makes it possible to connect the access electronics and the coupling device, which is also arranged at least in sections in the handle, to one another in a simple manner and with little cabling effort. Furthermore, such a Design an easy-to-do and inexpensive retrofitting of an existing door system with access electronics, since for retrofitting only the handle has to be replaced and not - as is the case, for example, with card readers arranged next to a door - conversions are made to the door leaf and / or door frame have to.

The access electronics can include, for example, a fingerprint sensor or a numerical pin code interrogation unit. However, it is particularly preferred if the access electronics include a reading device for wirelessly reading out electronic identification carriers. In order to release access, the identification carrier only has to be held up to the handle or at least brought close to it. This enables intuitive and convenient operation of the handle. Various technologies known per se can be used for wireless reading, e.g. SE, BLE, RFID, NFC, radio, etc.

It is also preferred if at least one battery for supplying energy to the drive device and / or the control device is arranged in the handle. In this way, a power supply for the drive device and / or the control device that is independent of external energy sources can be ensured. The handle according to the invention can consequently be arranged as a functional structural unit on a door leaf without the need for further structural measures to secure the Power supply is required, which makes it easy to retrofit existing door systems.

Furthermore, it is preferred if the pusher has a resetting device, preferably in the form of a spring device, which is set up to act on the handle about the pivot axis in the direction of a rest position. A reliable return of the handle to the rest position can hereby be achieved, independently of the locking device.

Further features and advantages of the invention are the subject matter of the following description and the drawing of a preferred exemplary embodiment.

Fig. 1

eine perspektivische Ansicht eines Drückers;

Fig. 2

eine perspektivische Ansicht des Drückers gemäß Fig. 1 in einem Horizontalschnitt;

Fig. 3a

eine Draufsicht des Drückers gemäß Fig. 2 mit Kupplungselementen in Entkuppelstellung;

Fig. 3b

eine Draufsicht des Drückers gemäß Fig. 2 mit Kupplungselementen in Kuppelstellung;

Fig. 4a

eine Schnittansicht des Drückers gemäß Fig. 3a längs einer in Fig. 3a mit IVa - IVa bezeichneten Schnittebene in einer vergrößerten Darstellung; und

Fig. 4b

eine Schnittansicht des Drückers gemäß Fig. 3b längs einer in Fig. 3b mit IVb - IVb bezeichneten Schnittebene in einer vergrößerten Darstellung.

Show in the drawing

Fig. 1

a perspective view of a pusher;

Fig. 2

a perspective view of the trigger according to Fig. 1 in a horizontal section;

Fig. 3a

a top view of the trigger according to Fig. 2 with coupling elements in decoupling position;

Figure 3b

a top view of the trigger according to Fig. 2 with coupling elements in coupling position;

Figure 4a

a sectional view of the trigger according to Fig. 3a along one in Fig. 3a labeled IVa - IVa Sectional plane in an enlarged illustration; and

Figure 4b

a sectional view of the trigger according to Figure 3b along one in Figure 3b with IVb-IVb designated sectional plane in an enlarged representation.

In Figure 1 a trigger is shown, which is designated as a whole by the reference numeral 10. The handle 10 is used to operate a locking device (not shown) of a door, a window or the like (not shown). The locking device can be, for example, a mortise lock for mounting in a door leaf.

The pusher 10 has a handle 12 and a shaft 14, which can be pivoted about a common pivot axis 16. In the assembled state of the handle 10, the pivot axis 16 is preferably aligned orthogonally to a door leaf of a door.

The handle 12 is preferably designed as a door handle and has a first leg 18 oriented coaxially to the pivot axis 16 and a second leg 20 arranged at right angles to the first leg 18 (cf. Fig. 1 ). The handle 12 is preferably designed as a hollow body with an opening 22 on the door side and delimits a central installation space 24 (cf. Fig. 2 ).

The handle 12 is between a rest position shown in the drawing and an actuating position, in which the handle 12, preferably between 20 ° and 50 °, is pivoted about the pivot axis 16, pivotable.

The shaft 14 is designed as a square and is used for coupling with the locking device. E.g. the shaft 14 can engage in a known manner in a follower of a mortise lock, so that pivoting the shaft 14 about the pivot axis 16 leads to an actuation of the locking device.

The handle 10 can be fastened and stored in a manner known per se and therefore not explained in more detail via a rosette 26 on a door leaf (not shown). A restoring device in the form of a restoring spring 28 is preferably arranged in the rosette 26, which is used to act on the handle about the pivot axis 16 in the direction of the rest position (cf. Fig. 2 ).

The handle 10 also has a coupling device 30, by means of which the handle 12 and the shaft 14 can optionally be coupled to one another in a rotationally fixed manner or can be uncoupled from one another (cf. Figures 3a to 4b ). The coupling device 30 has a first transmission element 32 that is non-rotatably connected to the handle 12 and a second transmission element 34 that is non-rotatably connected to the shaft 14. The first transmission element 32 and the second transmission element 34 are arranged coaxially to the pivot axis 16.

The first transmission element 32 is designed as a hollow shaft and delimits a central receiving space 36. The first transmission element 32 is arranged in sections in the door-side opening 22 of the handle 12 and there connected to the handle 12 in a rotationally fixed manner. E.g. it is possible for the first transmission element 32 to be inserted into the installation space 24 of the handle 12 in a clamping manner. It is also possible for the first transmission element 32 to be connected to the handle 12 in a rotationally fixed manner via a screw connection (not shown).

The second transmission element 34 has a first shaft-side connecting section 38, designed as a hollow shaft, and a second coupling section 40, which is preferably designed in one piece with the connecting section 38 but is at least non-rotatably connected.

The connecting section 38 delimits a central receiving space 42 in which a shaft end 44 of the shaft 14 is received in a rotationally fixed manner (cf. Figures 3a and 3b ). It is possible, for example, for the receiving space 42 to have a cross section that is complementary to the cross section of the shaft 14, so that the connecting section 38 and the shaft end 44 form a positive connection effective in the direction about the pivot axis 16.

The second transmission element 34 has a smaller outer diameter than the first transmission element 32 and is mounted pivotably about the pivot axis 16 in the receiving space 36 of the first transmission element 32 (cf. Figures 3a and 3b ). The first The transmission element 32 and the second transmission element 34 can therefore be pivoted relative to one another about the pivot axis 16.

The first transmission element 32 and the second transmission element 34 can be connected to one another in a rotationally fixed manner by means of two coupling elements 46a, 46b. For this purpose, the second transmission element 34 has two recesses 48a, 48b in the area of the coupling section 40 for receiving a coupling element 46a, 46b each. The recesses 48a, 48b are designed in the form of radial bores, the bores being offset from one another at an angle of 180 ° around the pivot axis 16 - that is, they are arranged concentrically to a common displacement axis 50 oriented orthogonally to the pivot axis 16.

The first transmission element 32 has recesses 52a, 52b complementary to the recesses 48a, 48b of the second transmission element 34, the recesses 52a, 52b of the first transmission element 32 and the recesses 48a, 48b of the second transmission element 34 being coaxial with one another in the rest position of the handle 12 and are thus aligned coaxially to the displacement axis 50 (cf. Figures 3a and 3b ).

The coupling elements 46a, 46b are preferably designed as cylindrical bolts with a head 54a, 54b and a body 56a, 56b (cf. Figures 4a and 4b ). The respective head 54a, 54b has a larger cross section than the respective body 56a, 56b.

The coupling elements 46a, 46b are in the recesses 48a, 48b, 52a, 52b along the displacement axis 50 between one in the Figures 3a and 4a shown decoupling and one in the Figures 3b and 4b shown coupling position slidably mounted.

In the uncoupling position (cf. Figures 3a and 4a ) the coupling elements 46a, 46b are completely received in the corresponding recesses 48a, 48b of the second transmission element 34. In this position, the first transmission element 32 and the second transmission element 34 are decoupled from one another; the second transmission element 34 and the first transmission element 32 can thus be pivoted relative to one another about the pivot axis 16. A pivoting movement of the handle 12 is consequently not transmitted to the shaft 14, so that a door or a window cannot be opened.

In the coupling position (cf. Figures 3b and 4b ) the coupling elements 46a, 46b are displaced radially outwardly along the displacement axis 50, starting from the uncoupling position, so that they engage both in sections in the respective recesses 48a, 48b of the second transmission element 34 and in sections in the respective recesses 52a, 52b of the first transmission element 32 . The coupling elements 46a, 46b consequently form with the two transmission elements 32, 34 in each case a positive connection effective in the direction about the pivot axis 16, so that the first transmission element 32 and the second transmission element 34 are rotatably coupled to one another. A pivoting of the handle 12 about the pivot axis 16 thus leads to an actuation of the locking device so that the door or the window can be opened.

For switching the coupling device 30, a drive device 58 is provided which is set up to move the coupling elements 46a, 46b between their respective decoupling position and their coupling position (cf. Figures 3a and 3b ). The drive device 58 has an eccentric element 60 which cooperates with the coupling elements 46a, 46b. The eccentric element 60 is arranged in a central receptacle 62 of the coupling section 40 of the second transmission element 34 and is mounted pivotably about an eccentric axis 64. The eccentric axis 64 preferably corresponds to the pivot axis 16.

The drive device 58 also has a motor 66 for driving the eccentric element 60 about the eccentric axis 64. The motor 66 is arranged in the installation space 24 delimited by the first leg 18 of the handle 12, the motor 66 engaging in sections in the receiving space 36 formed by the first transmission element 32.

The eccentric element 60 is designed as a double eccentric and has a substantially rectangular cross-section with two short sides 68a, 68b and two long sides 70a, 70b in the viewing direction along the eccentric axis 64 (cf. Figures 4a and 4b ). The corners are preferred rounded, with two diagonally opposite corners having a comparatively small radius of curvature and the two further diagonally opposite corners having a larger radius of curvature.

In the in Figure 4a The coupling elements 46a, 46b each bear with an end face 72a, 72b of the head 54a, 54b on the long sides 70a, 70b of the eccentric element 60. In this state, the coupling elements 46a, 46b are arranged in their radially innermost position and, as described above, are arranged completely in the respective recess 48a, 48b of the second transmission element 34.

The coupling elements 46a, 46b are connected by means of a force application device 76 along a respective application direction (cf. arrows labeled 74a, 74b in FIG Figure 4a ) force-applied. The respective impingement direction is preferably aligned collinear with the displacement axis 50 of the coupling elements 46a, 46b and points radially inward in the direction of the eccentric element 60.

The force application device 76 comprises two springs 78a, 78b, a spring 78a, 78b being assigned to each coupling element 46a, 46b. The respective spring 78a, 78b is supported with a first end on the head 48a, 48b of the respective coupling element 46a, 46b and with a second end on a contact surface 80a, 80b of the respective recess 48a, 48b of the second transmission element 34. On In this way, the coupling elements 46a, 46b are pressed with their end faces 72a, 72b against the eccentric element 60 and thus always kept in contact with the eccentric element 60.

If the eccentric element 60 is based on the in Figure 4a position shown pivoted by 90 ° about the eccentric axis 64 (in the Figures 4a and 4b clockwise), the end faces 72a, 72b of the coupling elements 46a, 46b slide on the outer contour of the eccentric element 60. In this case, the coupling elements 46a, 46b are radially outward along the displacement axis 50 (in the direction of the in Figure 4a with arrows marked 82a, 82b) in their coupling position (cf. Figure 4b ) postponed.

In the coupling position, the coupling elements 46a, 46b then rest with their respective end faces 72a, 72b on the short sides 68a, 68b of the eccentric element 60. In this state, the coupling elements 46a, 46b - as described above - engage both in the respective recess 48a, 48b of the second transmission element 34 and in the respective recess 52a, 52b of the first transmission element 32.

In the course of the displacement of the coupling elements 46a, 46b from the uncoupling position into the coupling position, the springs 78a, 78b of the force application device 76 are tensioned. If the eccentric element 60 is returned to its in Figure 4a pivoted position shown, the springs 78a, 78b ensure that the coupling elements 46a, 46b in their in Figure 4a shown decoupling position are transferred - that is, moved radially inward along the displacement axis 50.

The handle 10 also has a control device 84 for controlling the drive device 58 (cf. Figure 2 ). The control device 84 comprises access electronics 86 arranged in the installation space 24 of the handle 12 for the identification of an authorized person. The access electronics 86 include a reading device 88 for wirelessly reading out electronic identification carriers (not shown).

If an identification carrier carrying an access authorization is brought up to the handle 12 so that the identification carrier is within reading range of the reading device 88, the access electronics 86 generate a signal which controls the motor 66 of the drive device 58 to the effect that the eccentric element 60 by an angle of 90 ° to pivot the eccentric axis 64 and, as a result, to move the coupling elements 46a, 46b in the direction of their coupling position.

To power the control device 84 and the drive device 58, the lever handle 10 also has an energy storage device in the form of batteries 90, which are arranged in the installation space 24 of the handle 12, preferably in the second leg 20 (cf. Figure 2 ). It is possible for the second leg 20 of the handle 12 to have an opening 92, preferably closable, at the end, which is used to be able to exchange the batteries 90 if necessary.

Claims (10)

Lever (10) for operating a locking device of a door, window or the like with a handle (12), with a shaft (14) for connection to the locking device and with a coupling device (30) for coupling the handle (12) and shaft (14), wherein the handle (12) and the shaft (14) can be pivoted about a common pivot axis (16), the coupling device (30) having at least one coupling element (46a, 46b) which, between a coupling position in which the The handle (12) and the shaft (14) are coupled to one another, and a decoupling position, in which the handle (12) and the shaft (14) are uncoupled from one another, can be moved, and the coupling device (30) at least in sections within a through the handle (12) is arranged in limited installation space (24) and, in the coupled state, pivots about the pivot axis (16) when the handle (12) is actuated, characterized in that the at least one coupling gselement (46a, 46b) is displaceable along a displacement path oriented in the radial direction relative to the pivot axis (16). Handle (10) according to claim 1, characterized in that the coupling device (30) has a drive device (58) with at least one eccentric element (60) pivotable about an eccentric axis (64), the at least one eccentric element (60) on the at least one Coupling element (46a, 46b) engages in order to drive it along the displacement path in at least one first direction (82a, 82b). Handle (10) according to Claim 2, characterized in that the eccentric axis (64) is aligned parallel, preferably collinear, to the pivot axis (16). Lever (10) according to one of the preceding claims, characterized in that the lever (10) has a force application device (76), preferably in the form of a spring device, which is effective along an application direction (74a, 74b) and the at least one coupling element ( 46a, 46b) acted upon in the direction of the coupling position or the uncoupling position. Handle (10) according to one of the preceding claims, characterized in that the coupling device (30) has a first transmission element (32) connected in a rotationally fixed manner to the handle (12) and a second transmission element (34) which is rotationally fixed to the shaft (14). comprises, the first transmission element (32) and the second transmission element (34) each having a recess (52a, 52b, 48a, 48b) assigned to a respective coupling element (46a, 46b) for receiving the respective coupling element (46a, 46b) at least in sections exhibit. Handle (10) according to claim 5, characterized in that the first transmission element (32) and / or the second transmission element (34) as a hollow shaft and that either the first transmission element (32) is arranged at least in sections in a receiving space (42) formed by the second transmission element (34) or the second transmission element (34) is arranged at least in sections in a space formed by the first transmission element (32) Receiving space (36) is arranged. Lever (10) according to one of the preceding claims 2 to 6, characterized in that the lever (10) comprises a control device (84) for controlling the drive device (58) of the coupling device (30). The handle (10) according to claim 7, characterized in that the control device (84) has access electronics (86), preferably arranged in the handle (12), for identifying an authorized person, the access electronics (86) being set up to do so to generate a signal with the present access authorization, which causes the drive device (58) to transfer the at least one coupling element (46a, 46b) from the uncoupling position to the coupling position. Handle (10) according to Claim 8, characterized in that the access electronics (86) comprise a reading device (88) for wirelessly reading out electronic identification carriers. Handle (10) according to one of the preceding claims 2 to 9, characterized in that in the handle (12) at least one battery (90) for supplying energy to the drive device (58) and / or the control device (84) is arranged.

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