Device and method for actuating a lock

Abstract

The invention relates to a device (1) and to a method for actuating a lock, the device comprising: − a support element (6); − a rotary element (7) for generating a blocking movement of the lock, said rotary element being mounted rotatably in or on the support element (6); and − a drive apparatus for driving the rotary element (7), wherein a stator (28) of the drive apparatus is fastened to the support element (6) and the rotary element (7) has at least one battery portion for accommodating at least one battery (27) for supplying power to the drive apparatus, or a stator (28) of the drive apparatus is fastened to the rotary element (7) and the support element (6) has at least one battery portion for accommodating at least one battery (27) for supplying power to the drive apparatus.

Description

[0001] Device and method for operating a lock

[0002] The invention relates to a device and a method for operating a lock.

[0003] Devices for operating a lock, in particular a locking cylinder actuating element such as a key or a locking cylinder pin, are known from the prior art. Such devices are also referred to as intelligent locks or smartlocks and enable actuator-assisted opening and closing of the bolt of a door lock. For this purpose, the smartlock can move a bolt of the door lock from the closed position to an open position or vice versa, without the user having to manually operate a key. As a rule, such a smartlock only allows authorized persons to operate the door lock, e.g. those carrying a transponder or smartphone that is authorized to control the smartlock. Controlling the smartlock via a keypad or fingerprint sensor is also possible.

[0004] A smart lock usually includes an electric motor that generates drive energy for the closing or opening movement. A smart lock also includes energy sources such as non-rechargeable primary batteries or rechargeable secondary batteries (accumulators) that provide the electrical power to operate the electric motor. These batteries can also supply power to a control device and other elements of the smart lock. A control device of the smart lock can, for example, receive a control signal to open or close the door lock and then control the electric motor to carry out the corresponding movement. However, it is also conceivable for the control device to control the electric motor independently without receiving a control signal, e.g. in the case of a time control.

[0005] Currently, there are a variety of different locking cylinders, including EU profile cylinders, dead-bolt locks, and oval cylinders. Furthermore, the arrangement of the door handle and lock also varies on current doors. For example, the handle can be located above or below the lock.

[0006] Different smart lock solutions exist for the various locking cylinder variants and arrangements. A fundamental distinction must be made between solutions that require changing the locking cylinder and solutions that are based on the existing lock and do not require changing the locking cylinder. To enable simple, especially retrofitting, installation of a smart lock, it is desirable not to have to change the locking cylinder. Particularly desirable is easy installation of the smart lock on a variety of locking cylinders or locks, as well as for a variety of relative arrangements between the door handle and the door lock. Furthermore, the best possible protection of the components of a smart lock is desirable, especially against external influences such as dirt particles and moisture.

[0007] Furthermore, it is desired to provide a smart lock with low weight, low installation space requirements, and low energy consumption, while simultaneously reducing the locking time. Furthermore, reliable operation over a wide range of rotation angles should be possible, in particular, the reliable generation of torque to execute a locking movement. The noise level during operation should also be low. The smart lock should also be suitable for operating a variety of locking cylinders and locks, as well as for a variety of relative arrangements between the door handle and the door lock.

[0008] Furthermore, smart locks typically include optical indicators that indicate the operating status of the smart lock, e.g., LED indicators. For example, US Pat. No. 9,546,504 B2 discloses a motorized lock for a door, such as an apartment door. These include diodes that can signal that the door is unlocked. The document also discloses an adapter plate for mounting the lock on a door.

[0009] DE 10 2019 107 282 A1 discloses a door lock actuating device for actuating a door lock.

[0010] The disclosed door lock actuating devices are characterized in that

[0011] • a rotating part of the device and a stationary part of the device are not mounted in a nested manner and / or

[0012] • both the batteries and a stator of the drive device used are arranged on or in a carrier body which, when mounted on the door, is fixed relative to the door (this, however, increases, among other things, the installation space required for the carrier body and thus for the smart lock), and / or

[0013] • Internal rotor motors are used.

[0014] Reliable operation of the optical display elements of a smart lock is also problematic, especially when a light source for generating radiation and an optical output element are arranged on different components of the smart lock or spatially separated within the smart lock, e.g., the light source is arranged on a support body and an optical output element is arranged on a rotating body, or vice versa. This can also increase installation space requirements.

[0015] The technical problem therefore arises of creating a device and a method for actuating a lock or locking cylinder actuating element which enable the device to be designed with very little installation space, wherein the device can in particular also have at least one of the previously mentioned advantageous properties and is particularly suitable for actuating a large number of locking cylinders or locks and for mounting on doors with a large number of relative arrangements between the door handle and the door lock.

[0016] The solution to the technical problem is achieved by the subject matter having the features of the independent claims. Further advantageous embodiments of the invention are set forth in the subclaims.

[0017] A device for actuating a lock is proposed. The device can, in particular, generate a locking movement of the lock, which serves to open (unlock) the lock or close (lock) the lock. The device can, in particular, generate a movement of at least one movable locking element of the lock. Such a locking element can be, for example, a latch, a bolt, or a pin, which is moved into a recess in a strike plate or a frame for locking.

[0018] This device comprises a carrier body. The carrier body is designed for direct or indirect mechanical fastening to the door. With direct fastening, the carrier body can be fastened directly to the door or a door element. With indirect fastening, the carrier body can be fastened to the door or a door element via at least one intermediate element, e.g. a door fastening element explained in more detail below. The carrier body can be fastened directly or indirectly, e.g. on or in a door leaf, on or in a fitting element of the door, or on or in a mortise lock that can be arranged in the door. In other words, the device, in particular the carrier body, can be fastened to the door or a door element or integrated into it. When mounted on the door, which is referred to below as the mounted state, the carrier body is arranged stationary relative to the door.The door fastening device can thus be used for attachment to a door element. The attachment to the door can then be made via the door element.

[0019] The door element can, in particular, refer to an element that is fixedly arranged or attached to the door leaf. Such a door element can, in particular, be a locking cylinder of a door lock or another element of the door lock, e.g., a handle or knob for operating the lock, a fitting, in particular a security fitting, or even a different element of the door lock.

[0020] The carrier body can have at least one connecting element for fastening to the door or to the door fastening element. For the purposes of this invention, unless expressly stated otherwise, the term "have" can also have the meaning of the terms "form" or "comprising". A connecting element for the purposes of this invention can serve to create a mechanical connection between two components to be connected. A (mechanical) connection for the purposes of this invention can be a detachable or a non-detachable connection. Examples of a detachable connection are, for example, a snap-in connection, a clamping connection or a screw connection. Examples of a non-detachable connection are, for example, an adhesive connection or a welded connection. The detachable or non-detachable connection can be a positive-locking, a force-locking and / or a material-to-material connection.The components to be connected can have corresponding connecting elements that interact with each other to create the mechanical connection. An example of corresponding connecting elements is a thread and a screw.

[0021] A body or element within the meaning of this invention can comprise several different partial bodies or partial elements that can be mechanically connected to one another. However, it is also possible for a body to be formed as a single piece. This can mean that the body / element consists of a single piece of material or a single part and not of several different parts. Thus, a single-piece body can be formed as a monolithic, i.e., coherent body that cannot be separated without destruction.

[0022] The device can have a first end facing the door and a further end facing away from the door. When mounted on the door, the first end faces the door and is in particular fastened to it, with the further end being a free end facing away from the door. The term "facing the door" in the sense of this invention can refer to the mounted state and also mean facing the first end of the device. The term "facing away from the door" in the sense of this invention can likewise refer to the mounted state and also mean facing the further end of the device. Accordingly, a door fastening device explained in more detail below can also have a side facing the door and a side facing away from the door. The entire device can be cylindrical. Thus, a side wall of the device can form a jacket surface of a cylinder.A front section of the device at the further end can form a cover section of the cylinder. A front section of the device at the first end can form a base section of the cylinder. Components of the device, explained in more detail below, in particular the drive device and the control device, can then be arranged in an internal volume enclosed by the outer wall of the device.

[0023] The carrier body can also have a first end facing the door and a further end facing away from the door. In the assembled state, the first end faces the door, with the further end being an end facing away from the door. The carrier body is preferably designed as a rotationally symmetrical body. A (central) longitudinal axis (center axis), which can be an axis of symmetry of the carrier body, can correspond to a central longitudinal axis of the device, wherein this central longitudinal axis of the device can be oriented from the end facing the door to the end facing away from the door. The central longitudinal axis of the device can correspond to an axis of symmetry of the device, but this is not mandatory. The longitudinal axis can simultaneously correspond to an axis of rotation of a rotating body of the device. However, embodiments of the device are also conceivable in which the longitudinal axis does not correspond to this axis of rotation. In such cases, this can, for example,be arranged parallel to the axis of rotation but at a distance from it.

[0024] The support body can have at least one section for attaching elements of the device, which, when mounted, are then also arranged stationary relative to the door. In particular, at least one of the following elements can be attached to the support body:

[0025] - a control device for controlling the operation of the device,

[0026] - a printed circuit board on which the control device and / or at least one light source and / or at least one communication device and / or further electrical and / or electronic components can be arranged,

[0027] - a stator of a drive device,

[0028] - Means for energy transmission such as conductor elements for electrically connecting various elements of the device, a cover element, a part of a gear mechanism explained below.

[0029] However, this list is not exhaustive. The support body can further comprise at least one section for supporting elements of the device, which, in the assembled state, are arranged so as to be movable, in particular rotatable, relative to the door. Such an element can, in particular, be a rotating body of the device, which can thus be rotatably mounted on the support body.

[0030] It is possible for the carrier body to have at least two sections with different outer diameters. For example, the carrier body can comprise a first section, in particular a hollow section, with a first outer diameter and a further section with a further outer diameter, wherein the further outer diameter is smaller than the first outer diameter. The carrier body can also comprise a base section for connecting these two sections with different outer diameters. This base section can in particular be arranged in the inner volume of the first section and thus form an intermediate wall in this inner volume, which divides the inner volume into several, in particular two, sub-volumes. In other words, this base section can be arranged along the longitudinal axis of the carrier body between the end of the hollow section facing the door and the end facing away from the door and can not form a front end section of the hollow section.The further section can then be arranged in a partial volume facing away from the door. The further section can be fastened to the base section and have a fastening section for fastening the stator. The further section can also have at least one bearing section for rotatably supporting the rotating body. The first section can have a receiving section for receiving a part of the rotating body, which can in particular be arranged in a partial volume of the explained internal volume facing the door. The further section, in particular the fastening section, can be hollow-cylindrical or comprise at least one, preferably two, hollow-cylindrical partial sections, wherein different partial sections can have different diameters. In this case, the section of the rotating body can also extend through a through-opening formed by the further section or fastening section.In particular, this passage opening can be aligned with the passage opening in the floor section.

[0031] The carrier body can also have means for energy transmission and / or position determination. Via such means, for example, energy can be transmitted from a battery, i.e. a primary or secondary battery, to the drive device and / or to a control device. Such means can also be transmitted from an electrical connection element of the device to a battery. These means can be made of electrically conductive material. For example, the means can be designed as a conductor track or comprise such a track. Furthermore, such means can comprise pins made of conductive material. These can be attached to the carrier body in an exposed manner or at least partially integrated into the material of the carrier body. Such means can also be designed as conductive cables. Means for position determination enable, for example, a position signal to be transmitted to a control device.

[0032] It is possible for the carrier body to comprise a fastening body for fastening the carrier body, which can also be referred to as a carrier fastening body or carrier fastening element, to the door fastening device. The carrier body can be mechanically connected to this fastening body, e.g., via at least one fastening element designed as a locking element. For example, the fastening body can have locking recesses for receiving locking elements of the carrier body.

[0033] Of course, the fastening body can alternatively or additionally also comprise locking elements for arrangement in locking recesses of the carrier body. However, it is also possible for the carrier body and the carrier fastening body to be formed integrally. The fastening body can then comprise fastening and / or guide elements, explained in more detail below, for attachment to the door fastening device. The fastening body can be hollow-cylindrical and, in particular, arranged at an end of the carrier body facing the door.

[0034] The device further comprises a rotating body for generating the locking movement of the lock, which is rotatably mounted in or on the carrier body.

[0035] To generate the locking movement, the rotating body can have an interface for direct or indirect mechanical coupling with at least one locking element of the lock. This can mean that a rotational movement of the rotating body, which is transmitted via the interface to the lock or an element of the lock, can cause a locking movement of the locking element.

[0036] For example, the rotating body can have at least one section for receiving the locking cylinder actuating element. A locking cylinder actuating element can in particular be a key or a locking cylinder pin. Such a locking cylinder pin can have various geometric designs. By actuating, in particular rotating, the locking cylinder actuating element, a bolt of the door lock can be moved from the closed position to an open position or vice versa if the locking cylinder actuating element can interact with the locking cylinder of the lock (e.g. the key is inserted into the locking cylinder). The locking cylinder actuating element can be arranged in or on the rotating body in a fixed position relative to the rotating body. The receiving section enables a rotationally fixed, in particular a positive and / or non-positive, connection of at least one section of the locking cylinder actuating element and the rotating body.The receiving section can be formed, for example, as a recess, in particular a blind hole-like recess, in a section of the rotating body.

[0037] However, it is also conceivable for the rotating body to have an interface for receiving an actuating element that serves to actuate a different element of the lock than the locking cylinder. The rotating body can also have an interface for directly actuating such a different element. In this case, for example, a rotary movement of the rotating body can be transmitted to the locking element not via the locking cylinder, but via a different element.

[0038] The rotating body can also have a first end facing the door and a second end facing away from the door. In the assembled state, the first end faces the door, while the second end is an end facing away from the door. The rotating body is also preferably designed as a rotationally symmetrical body. A (central) longitudinal axis of the rotating body, which can be an axis of symmetry of the rotating body, can correspond to the longitudinal axis of the support body and / or the device, but can also be offset therefrom.

[0039] The device can comprise at least one bearing device for supporting the rotating body, wherein the rotating body is rotatably mounted in or on the carrier body via this bearing device. Such a bearing device can be designed as a rolling bearing, in particular as a ball bearing. However, it is also conceivable to design the bearing device as a plain bearing, fluid bearing, magnetic bearing, or with a different mode of operation. The bearing device can also implement a combination of different bearing principles, for example, a combination of ball and plain bearing devices. The rotating body can have a manual actuation section. This will be explained in more detail below. The rotating body can have at least two sections or partial bodies with different outer diameters, which will also be explained in more detail below.

[0040] The device further comprises a drive device for driving the rotating body. The drive device can comprise a stator and a rotor. The stator can denote a stationary part of the drive device that does not move during operation of the drive device to move the rotor. The rotor can therefore denote a movable, in particular rotatable, part of the drive device. The drive device, in particular the rotor, can be or become mechanically coupled to the rotating body to drive it. The drive device can be designed as a synchronous motor, in particular as a permanent magnet synchronous motor, as an asynchronous motor, as a servomotor, as a stepper motor, as a DC motor, in particular a brushless DC motor, or with a different mode of operation.

[0041] The device may comprise at least one bearing device for supporting the rotor, wherein the rotor is rotatably mounted in or on the support or rotating body, in particular on the stator, via this bearing device. Regarding the design of this bearing device, reference can be made to the previous explanations regarding the mounting of the rotating body.

[0042] The rotating body can also have means for energy transmission and / or means for position determination. In this regard, reference is made to the explanations regarding the corresponding means of the carrier body. The device, in particular the rotating body and / or the carrier body, can further have at least one contact element for establishing electrical contact between a carrier-body-side means for energy transmission and / or position signal transmission and a rotating-body-side means for energy transmission and / or position signal transmission. Preferably, the device has a first contact element for transmitting a potential at a first level and at least one further contact element for transmitting a potential at a further voltage level that is different from the first voltage level.In particular, the potential present at the positive pole of the at least one battery can be transmitted via the first contact element, and the potential present at the negative pole of the at least one battery can be transmitted via the further contact element. Such a contact element can be designed, for example, as a contact spring. The device can have further such contact elements for position signal transmission. The contact element or a contact element on the rotating body side and a contact element on the carrier body side can be designed and / or arranged in such a way that energy and / or signal transmission is possible even during a rotational movement of the rotating body.

[0043] The device is configured such that, in the assembled state, a drive force / torque generated by the drive device causes a rotary movement of the rotary body, which can then move a locking element of the door lock. For this purpose, the rotary body can actuate an element of the lock directly or indirectly in the assembled state - as explained above. For example, in the assembled state, the locking cylinder actuating element can be arranged in the receiving section of the rotary body. Such a rotary movement of the rotary body is also referred to below as a locking movement of the rotary body. A locking movement can then serve, particularly depending on the direction of rotation of the rotary movement, to open (unlock) the lock or close (lock) the lock.

[0044] According to a first alternative according to the invention, a stator of the drive device is attached to the support body, and the rotating body has at least one section for accommodating at least one battery for supplying power to the drive device. This section is referred to below as the battery compartment. For the purposes of this invention, a battery refers to a power source. A battery can be a primary or secondary battery. For example, the battery can be a lithium battery.

[0045] According to a second alternative according to the invention, the stator of the drive device is attached to the rotating body, and the support body has at least one battery compartment. In this case, the stator is supported on the rotating body. During operation of the drive device, the stator rotates with the rotating body, while the at least one battery is arranged stationary relative to the support body.

[0046] It is possible for the device to comprise the at least one battery, which is then arranged in the battery compartment. If the battery is arranged in the battery compartment, in the first alternative according to the invention the battery rotates with the rotating body during a locking movement. The at least one battery can be arranged in the battery compartment in a removably or non-removably manner. The at least one battery can be rotationally symmetrical or non-rotationally symmetrical. The arrangement of several batteries in the battery compartment can also be a rotationally symmetrical arrangement, in particular with respect to a rotation axis of the rotating body. The following statements refer to both the first and the second alternative according to the invention, unless expressly stated otherwise or arising from the context.

[0047] The battery compartment can, in particular, be an internal volume of a hollow, in particular hollow-cylindrical, portion of the rotating or support body. The previously explained means for energy and / or signal transmission, which comprises, for example, at least one contact element, can be arranged on or in a wall and / or base portion of the battery compartment.

[0048] By arranging the stator of the drive device in / on the carrier body and the battery compartment in / on the rotating body, or vice versa, the installation space required by the device can be further reduced. This is because, if the stator is arranged in / on the carrier body, no installation space in the carrier body needs to be provided for one or more batteries. This allows the carrier body to be smaller than in smart locks, which provide for the arrangement of both the stator and the battery(ies) in the carrier body. The same applies to the second alternative according to the invention, in which case no installation space needs to be provided in the carrier body for a stator.

[0049] In a further embodiment, the rotating body comprises at least one receiving body for receiving the at least one battery and / or at least one actuating body. The receiving body can be arranged at least in sections in an internal volume of the actuating body. The receiving body can be designed as a (first) hollow body and the actuating body can be designed as a (further) hollow body. The two bodies can form partial bodies of the rotating body. For the purposes of this invention, an at least partially arranged arrangement refers to a complete or only partial, i.e. incomplete, arrangement. An outer diameter of the receiving body can therefore be smaller than an inner diameter of the actuating body. It is possible for the receiving body to be arranged at an end of the rotating body facing the door or to form this door-facing end.The receiving body can then be arranged in a section of the internal volume of the actuating body facing the door or protrude into this section. The receiving body and / or the actuating body can be open towards one (front) side, in particular towards the side facing the door. Towards a (front) side facing away from the door, the receiving body and / or the actuating body can be at least partially closed, wherein the closing section forms a base section of the respective partial body. A base section of the receiving body can be arranged along the previously explained longitudinal axis of the device at a predetermined distance from a base section of the actuating body. The base sections can be oriented perpendicularly or substantially perpendicularly to the longitudinal axis. A further receiving volume can be formed between the base sections of the two partial bodies of the rotating body, which, for example,can serve to accommodate further elements of the device. For example, the stator, a control device and further components can be arranged in this further receiving volume. The receiving body and the actuating body can be designed as different bodies and mechanically connected to one another, preferably, but not necessarily, with a screw connection. The mechanical connection between the two partial bodies is a rotationally fixed connection. A section for receiving a locking cylinder actuating element (receiving section) or a lock actuating element different therefrom can be formed by the receiving body. The receiving body can also have an interface for the direct mechanical actuation of a lock element. The receiving body can also have the battery compartment. It is possible for the battery compartment and the receiving section orthe interface is arranged successively along the longitudinal axis of the device or the receiving body, wherein in particular the receiving section / interface is arranged closer to the door than the battery compartment in the assembled state. In this embodiment, the volumes of the battery compartment and the receiving section / interface can be spatially separate volumes that do not overlap. However, it is also possible for the volumes of the battery compartment and the receiving section / interface to overlap; in particular, the volume of the receiving section / interface can be arranged at least partially in a volume of the battery compartment. For example, several batteries can be arranged in the battery compartment, wherein these are arranged around the receiving section / interface. E.g.the receiving section / interface can be arranged between battery compartment sections in a cross-sectional plane oriented perpendicular to the longitudinal axis of the rotating body.

[0050] The receiving body can have means for energy and / or signal transmission, which in particular enable a transmission of the potentials present at the positive pole and the negative pole of the at least one battery, in particular to corresponding contact elements of the receiving body. The receiving body can also comprise these contact elements for transmitting these potentials to energy transmission means on the carrier body. The receiving body can also comprise an element for contact-based position determination, e.g. a contact element and means for energy transmission for transmitting a potential for position determination. This will be explained in more detail below. Such contact elements can, for example, be arranged on or in a base section of the receiving body. Preferably, at least two contact elements are arranged on or in the base section, wherein these serve to transmit different potentials.These contact elements can protrude from the base section into the receiving volume between the base sections of the receiving and actuating bodies, i.e., protrude from a surface of the base section of the receiving body facing away from the door. The contact elements can be arranged radially offset from one another, i.e., at different radial distances from the longitudinal or symmetrical axis of the receiving body. Furthermore, these contact elements can contact conductor tracks or segments in the carrier body. This will be explained in more detail below. The arrangement of at least some sections of the receiving body of the rotating body in the interior volume of the actuating body advantageously results in a space-saving design of the rotating body and thus of the device.

[0051] In a further embodiment, the support body is arranged at least in sections within an internal volume of the actuating body. In particular, the receiving body can be arranged in a first part of this internal volume, and the support body can be arranged in a further part of this internal volume. The further part can, in particular, comprise the previously explained section between the base sections of the two partial bodies of the rotating body. The drive device, in particular the stator and the rotor, can also be arranged in this internal volume, in particular in the further part, further in particular in the section between the base sections, of the partial body.

[0052] It is possible for a section of the support body to be arranged in a space between the casing sections of the partial bodies of the rotating body. This section of the support body can extend from an end facing away from the door to a door-side end of the support body. This section can in particular be formed by the hollow section of the support body with the first outer diameter. A further section of the support body can be arranged in the section between the base sections of the partial bodies. This further section of the support body can in particular have the fastening and / or bearing sections of the support body explained. The arrangement of the support body, at least in sections, in the interior volume of the actuating body also advantageously results in a space-saving design of the device.In a further embodiment, the carrier body is arranged at least in sections between an outer wall of the receiving body, in particular a shell outer wall of a receiving body designed as a hollow body, and an inner wall of the actuating body, in particular an inner shell wall of a receiving body designed as a hollow body. This can correspond to the explained arrangement of a section of the carrier body, in particular the previously explained hollow section, in an intermediate space between the shell sections of the partial bodies of the rotating body.This section of the carrier body can form a connecting section which, in the assembled state, connects further sections of the carrier body, in particular the previously explained base section of the carrier body and / or the section for fastening the stator, to the door and thus ensures stable fastening to the door, while at the same time advantageously enabling the device to be designed with little installation space. An end of the connecting section facing the door can be mechanically connected to the door or a door fastening element in the assembled state. The device can also comprise a cover element, in particular a hollow cylindrical cover element, for covering the mechanical connection between the carrier body and a carrier fastening element, which will be explained in more detail below, or a door fastening element or a door.In particular, the door-facing end of the connecting portion can be arranged in an interior volume of the cover element. An outer surface of the cover element can form a portion of the outer surface of the device. The cover element can be mechanically connected to the support body in a rotationally fixed manner.

[0053] In a further embodiment, a section of the rotating body extends through a through-opening in the carrier body. The diameter of the through-opening can be smaller than a maximum outer diameter or a minimum outer diameter of the carrier body, in particular in a second alternative according to the invention. The through-opening can be arranged in the previously explained base section of the carrier body. A diameter of this through-opening can be smaller than the outer diameter of this base section. In particular, a connecting section of the receiving body and the actuating body can extend through the through-opening for the particularly rotationally fixed connection of these bodies, wherein the bodies are mechanically connected to one another by this connecting section. The connecting section can comprise a connecting means such as the previously explained screw.The connecting section of the partial bodies can, for example, connect the base section of the receiving body to the base section of the actuating body and for this purpose can extend, for example, from a surface of the base section of the receiving body facing away from the door to a side of the base section of the actuating body facing the door, in particular along the longitudinal axis of the device. It is possible for the rotating body to be mounted on the carrier body in the region of this connecting section, in particular via a ball bearing. This does not preclude the rotating body from additionally being mounted in the region of a further section on the carrier body. In particular, a manual actuation section of the rotating body can be mounted on a further section of the carrier body via a plain bearing.

[0054] This advantageously results in a very space-saving design of the device, while at the same time ensuring that elements can be arranged in the internal volume of the device and thus protected from external influences.

[0055] In a further embodiment, the rotating body has a cover element for the receiving body. The cover element can be arranged on an end face of the receiving body facing the door and thus cover or at least partially close the internal volume of the receiving body, in particular of the battery compartment, on this end face. Thus, the internal volume of the receiving body can be arranged between the previously explained base section of the receiving body, the casing section of the receiving body and the cover element. The cover element can be mechanically connected to the receiving body, preferably in a detachable and / or rotationally fixed manner. It is possible, for example, for the cover element and / or the receiving body to have (corresponding) locking elements for mechanical connection to one another.The device, in particular the cover element and / or the receiving body, can also have at least one spring element which clamps the cover element and the receiving body together when fastened to one another. Alternatively or cumulatively, such a spring element can be arranged or designed such that it fixes the at least one battery arranged in the interior volume of the receiving body, thereby ensuring not only a stable arrangement of the battery but also reliable electrical contact with the battery. The cover element advantageously results in an arrangement of the at least one battery in the battery compartment that is protected from external influences, e.g. dirt or moisture, and thus a reliable functioning of the device.

[0056] In a further embodiment, the cover element has a section for receiving a locking cylinder actuation element or an interface for mechanically actuating a lock element. A receiving section or an interface can be designed, in particular, as a recess, in particular a blind-hole-like recess, in the region of a surface of the cover element facing the door. The recess can, in particular, be a slot-shaped recess. The structural integration of the receiving section / interface into the cover element advantageously results in a very compact design of the device with a low installation space requirement, while simultaneously ensuring a protected arrangement of the at least one battery.

[0057] In a further embodiment, at least one section of the rotating body forms a manual actuation section for actuation by a user. This section can be a hollow section of the rotating body and, in particular, can be formed by the actuation body body explained above. This section can be closed on an end face facing away from the door, wherein this end face can form the end face of the device facing away from the door. As explained in more detail below, a haptic actuation element and / or an optical output element of the device can be arranged on this end face. Radiation can thus be emitted, in particular, in the direction facing away from the door. Alternatively or cumulatively, a haptic actuation element of the device can be arranged there. An actuation surface can, in particular, partially or completely encompass the outer circumferential surface of the rotating body, in particular of the actuation body, or can be formed by it.This outer surface can also form the outer surface of the device. A user can manually actuate the manual actuation section, particularly in the area of ​​the actuation surface, and, for example, exert a torque on the rotating body. This torque can generate a locking movement.

[0058] The support body and other parts of the rotating body can be arranged, at least in sections, within an interior volume of the manual actuation section. Further elements of the device, e.g., the drive device, a control device, and other elements, can also be arranged within the interior volume. This advantageously results in a device that allows for a manual closing process with very limited installation space requirements, while simultaneously enabling reliable output of optical signals.

[0059] In a further embodiment, the drive device is designed as an external rotor motor. The external rotor motor can be designed, for example, as a brushless DC motor (BLDC motor) or as a permanent magnet synchronous motor (PMSM motor). In this case, the drive device can comprise a stator with a predetermined number of n stator windings, where n can be 12, for example. The stator windings can be electrically connected to one another in a star connection, preferably in a double star connection. The drive device can further comprise a predetermined number m of magnetic elements, where m can be 14, for example, which can be arranged on a rotor of the external rotor motor. In particular, the number of magnetic elements can be greater than the number of stator windings. The rotor can be rotatable on or relative to the stator and / or on orbe mounted relative to the carrier body or rotating body. The rotor and the stator can - as previously explained - be arranged in the internal volume of the device, in particular the manual actuation section and further in particular in the section between the base sections of the two partial bodies of the rotating body. Furthermore, the stator and rotor can be arranged, at least in sections, in the partial volume of the hollow section of the carrier body facing away from the door. The design of the drive device as an external rotor motor advantageously results in a very compact design of the drive device, which can simultaneously reliably generate the torques required for the locking movement, which in turn results in reliable operation of the device.

[0060] In a further embodiment, the device comprises a gear for transmitting a movement of a rotor of the drive device to the rotating body or the carrier body. The gear can be designed in particular as a planetary gear. Preferably, the gear is designed as a coupling gear, in particular as a reduced coupling gear. Particularly preferably, the gear is designed as a Wolfrom gear. However, other embodiments of the gear are also conceivable. For example, the gear can be designed as a Harmonie Drive gear, which can also be referred to as a stress wave gear, harmonic gear or sliding wedge gear, or as a gear transmission. The gear can comprise a plurality of gear elements, in particular gears and / or gear rings. For example, the gear can comprise a sun gear, at least one ring gear and at least one epicyclic gear (planetary gear).The gear mechanism, in particular the gear elements, can - as explained above - be arranged in the internal volume of the device, in particular of the manual actuation section and further in particular in the section between the bottom sections of the two partial bodies of the rotating body.

[0061] It is possible for the rotor of the drive device to have or form a sun gear, or for the sun gear to be attached to the rotor. This advantageously results in a particularly space-saving design of the device. A first ring gear of the transmission can be mechanically connected, in particular in a rotationally fixed manner, to the carrier body. A further ring gear of the transmission can be or become mechanically connected to the rotating body, in particular in a rotationally fixed manner. Preferably, however, the further ring gear is mechanically connected to the rotating body via a clutch. The sun gear and the ring gears can be designed as externally or internally toothed gear rings. It is also possible for a bearing device, in particular a ball bearing, to be arranged between different ring gears of the transmission in order to reduce friction during a relative movement of the ring gears to one another, in particular when engaging and disengaging a clutch.

[0062] Planetary or epicyclic gears of the transmission can be rotatably mounted on an epicyclic gear carrier. The epicyclic gear carrier, in turn, can be arranged rotatably relative to the carrier body. At least one epicyclic gear pair, which can comprise two different epicyclic gears, can be rotatably mounted on the epicyclic carrier, with the two epicyclic gears of the pair being mounted on the epicyclic gear carrier so as to be rotatable about the same axis of rotation. A first epicyclic gear of a pair can mesh with the first ring gear, and a further epicyclic gear of the pair can mesh with the further ring gear. The epicyclic gears of a pair can be connected to one another in a rotationally fixed manner. It is also conceivable for both epicyclic gears of a pair to be formed by a one-piece epicyclic gear body.

[0063] The planetary gears of a pair can be helical-toothed planetary gears. This advantageously leads to reduced noise emissions during actuator-supported operation of the device. The number of teeth of the first and second planetary gears can be selected such that noise emissions during operation are reduced. In particular, the number of teeth of the first planetary gear is different from the number of teeth of the second planetary gear. The number of teeth of the first planetary gear can be smaller, but preferably larger, than the number of teeth of the second planetary gear. To reduce or avoid the axial forces generated by the helical gearing during actuator-supported operation, the helix angle of the first planetary gear can be different from the helix angle of the second planetary gear. This cancels out axial forces and relieves the load on the gear during actuator-supported operation.In particular, the helix angle of the second planetary gear can correspond to an inverted helix angle of the first planetary gear. This can mean that the helix angle of the helical gearing of the second planetary gear relative to a common reference axis, e.g., the rotational axis of the planetary gears, corresponds to the inverted value of the helix angle of the helical gearing of the first planetary gear or the difference between 180° and the value of the helix angle of the helical gearing of the first planetary gear. Alternatively, it is possible for the rotor of the drive device to have the planetary gear carrier or for the planetary gear carrier to be attached to the rotor, whereby the transmission does not include a sun gear.

[0064] The gearing advantageously enables the conversion of a torque generated upstream of the drive device into a torque for the rotating body that is dimensioned to execute the locking movement. This enables reliable operation of the device.

[0065] In a further embodiment, the device comprises a coupling for establishing a separable connection between a rotor of the drive device and the rotating body or the carrier body. In the disengaged state, no force / torque can be transmitted from the rotor to the rotating body via the coupling. In the engaged state, a force / torque can be transmitted from the rotor to the rotating body via the coupling. In the engaged state, an actuator-supported locking movement can be carried out, since a torque can be transmitted from the drive device to the rotating body. Actuator-supported in the sense of this invention can mean that the drive torque for carrying out the locking movement is generated at least partially or exclusively by the drive device.

[0066] In the disengaged state, a manual locking movement can be enabled, which can be performed without the user having to overcome a blocking force / torque of the drive mechanism not operated during the manual locking movement, since such a blocking torque is not transmitted from the drive mechanism to the rotating body. Thus, a freewheel clutch is provided that enables simple manual actuation of the device, whereby, in particular, the rotating body can be decoupled (and thus freely rotated) from the drive mechanism during manual actuation.

[0067] The clutch can comprise a plurality of clutch elements that can be moved relative to one another to establish the engaged state and to establish the disengaged state. The clutch, in particular the clutch elements, can - as explained above - be arranged in the internal volume of the device, in particular of the manual actuation section and further in particular in the section between the base sections of the two partial bodies of the rotating body. For example, the clutch can comprise a first clutch element, e.g. a first hollow ring, and a further clutch element, e.g. a further hollow ring, wherein these clutch elements each have a gear section. The first clutch element can be or become mechanically connected to the rotor and the further clutch element to the rotating body, in particular the manual actuation section.This advantageously results in a particularly space-saving design of the device and a reliable transmission of torque to the rotating body. The coupling elements can be external, internal, or lateral, and in particular also as helically toothed gear rings. Furthermore, the coupling can include a return element; this will be explained below.

[0068] In the engaged state, the coupling elements can be arranged relative to one another such that the gear sections mesh with one another. In the disengaged state, the coupling elements can be arranged relative to one another such that the gear sections do not mesh with one another. A relative movement for coupling can be oriented along or against the longitudinal axis of the device. Accordingly, a relative movement for disengaging can be oriented against or along this longitudinal axis. However, the relative movement can also have a different orientation. If the coupling element is annular, this orientation can in particular be oriented normal to the (circular) area enclosed by the coupling element.

[0069] The clutch can have at least one engagement element for establishing an engaged state in actuator-supported operation of the device. This can be arranged and / or designed such that the engaged state is established automatically or independently when the drive device is operated to generate a locking movement. It is conceivable, for example, that the at least one engagement element is mechanically coupled to the rotor and arranged and / or designed such that it generates a relative movement between the clutch elements (clutch movement) from a rotational movement of the rotor to establish the engaged state. Thus, the engagement element can be mechanically coupled to the rotor, in particular via the explained gear. This clutch movement can be generated, for example, by the at least one engagement element.the engagement element can at least partially and / or temporarily convert a torque generated by the drive device into a drive force for generating the clutch movement. It is particularly possible for the previously explained further hollow ring of the transmission to have or form the engagement element. In particular, several engagement elements can also interact with one another to generate this clutch movement. The clutch can also have precisely one or more return elements for establishing a disengaged state. This return element can be designed as a spring element, in particular as a wave spring, disc spring, wire bending spring or a spring element designed differently therefrom, or can comprise precisely one such spring element or several such spring elements. The at least one return element can, for example, be arranged between the clutch elements which are movable relative to one another.It is conceivable that exactly one wave spring or wire bending spring or several, in particular three, wave springs or wire bending springs are arranged between such coupling elements. The coupling can in particular be designed as an automatic coupling. This can mean that coupling elements are arranged and / or designed and interact with one another in such a way that the engaged state is established and / or remains established during or after the start of operation of the drive device for carrying out an actuator-supported locking movement. For this purpose, the rotational movement of the rotor can bring about a relative movement between the coupling elements of the coupling to establish and / or maintain the engaged state. During this relative movement (coupling movement), a restoring force of the restoring element can be overcome.Furthermore, such an automatic clutch can also comprise the described return element, which generates a force to establish the disengaged state. For example, the disengaged state can be established during or after the end of operation of the drive device to perform an actuator-assisted locking movement. The corresponding relative movement (disengaging movement) can be generated entirely or partially by the return force of the return element.

[0070] The automatic clutch can, however, be designed in such a way that this disengaging movement can only take place in a released state. To establish the disengaged state, for example, after the locking movement has ended, the drive device can be operated to release the disengaging movement. For this purpose, the drive device can be operated in such a way that the rotating body is rotated in a predetermined direction of rotation, which is in particular oriented opposite to the direction of rotation of the previously ended locking movement. Through this rotary movement, the relative movement to establish the disengaged state can be released and brought about by the restoring force generated by the restoring element. Alternatively, the disengaged state can also be established by a user actuating the manual actuation section in such a way that the rotating body is rotated in the aforementioned predetermined direction of rotation.The provision of a clutch advantageously simplifies manual actuation of the device to execute a locking movement, since—as previously explained—no locking torque needs to be overcome. The wave spring clutch design advantageously enables a very space-saving design of the clutch.

[0071] In a further embodiment, the carrier body has at least one element for mechanical connection to a door fastening element. The door fastening element refers to an element which can be fastened to the door, in particular in the region of a locking cylinder. The door fastening element can then be fastened to the door in a stationary manner relative to the door. The carrier body can then, in turn, be fastened to the door fastening element, in particular likewise in a stationary manner. The door fastening element can in particular be designed as a door fastening plate, preferably as a circular plate. The door fastening element can have at least one recess or through-opening for arranging a locking cylinder section. A locking cylinder actuating element arranged in the receiving section of the rotating body, for example, can then extend through this through-opening from the rotating body into the locking cylinder.

[0072] The door fastening element can have at least one element for establishing a mechanical connection with the door or a door element, e.g. the locking cylinder. For example, the door fastening element can have at least one adhesive surface on a surface facing the door for bonding the door fastening element to the door, in particular a door element. An adhesive can be applied or arranged on this adhesive surface. In the bonded state, the door fastening device can be arranged stationary relative to the door, in particular the door leaf, and fastened to the door. Alternatively or cumulatively, the door fastening element can have at least one element for establishing a mechanical connection, in particular a detachable one, with the door. Such an element can, for example,a thread into which clamping screws can be screwed to create a clamped connection between the door fastening element and the door, in particular the locking cylinder. Preferably, the door fastening element has a plurality of such elements. These are in particular arranged and / or designed in such a way that a reliable and stationary fastening to the door, in particular the locking cylinder, is enabled. The arrangement and / or design of such elements can be adapted to the shape of a locking cylinder. The elements can in particular enable the device to be fastened to the door in such a way that the axis of rotation of the rotating body corresponds to the locking cylinder axis of rotation. Further alternatively or cumulatively, the door fastening element can also have at least one through-opening which serves to receive a screw for screwing the door fastening element to the door or a lock fastened in the door.In this case, the door or the locking cylinder may include at least one thread to accommodate such a screw.

[0073] Furthermore, the door fastening element can have at least one element for mechanically connecting (fastening element) to the carrier body, which can be designed, for example, as a locking element. The door fastening element can also have at least one guide element for guiding an assembly movement, wherein the carrier body is fastened to the door fastening element by carrying out the assembly movement. Such a guide element can be designed as a guide web, as a guide lug or as a guide groove, or in another way. In particular, the guide element can be a component of a bayonet lock, which enables a quickly established and detachable mechanical connection between the carrier body and the door fastening element. Such a guide element therefore also forms an element for the mechanical connection.The carrier body can have, in particular at an end facing the door, corresponding fastening and / or guide elements which interact with the fastening and / or guide elements on the door fastening element side.

[0074] The door fastening element and / or the carrier body can also have at least one element for enabling a disassembly movement. For example, one of these elements can have a locking element, e.g. designed as a spring element, and the remaining element can have a receiving section for receiving the locking element in the assembled state. Then, for example, during the assembly movement, the carrier body can be moved relative to the door fastening element in such a way that the locking element moves into the receiving section at the end of the assembly movement, i.e. in a predetermined relative position between the door fastening element and the carrier body. In this state, further relative movement between the carrier body and the door fastening element, in particular a disassembly movement, can be blocked. If the locking element is moved out of the receiving section, e.g. by actuation by a user, the disassembly movement in particular can be enabled.The door fastening element or the carrier body can have an actuating element, e.g. a push button, which is mechanically connected to the locking element or forms the latter, wherein a particularly manual actuation of the push button leads to the locking element being moved out of the receiving section.

[0075] Of course, the door fastening element and / or the carrier body can also have at least one stop element for limiting the relative movement between the door fastening element and / or the carrier body. It is possible for the carrier body to comprise a (carrier) fastening body for fastening the carrier body to the door fastening element. The carrier body can be mechanically connected to this fastening body, e.g. via at least one fastening element designed as a locking element. For example, the fastening body can have locking recesses for receiving locking elements of the carrier body. Of course, the fastening body can alternatively or cumulatively also have locking elements for arrangement in locking recesses of the carrier body. However, it is also possible for the carrier body and the carrier fastening body to be formed as a single piece.The fastening body can then have the described fastening and / or guide elements for fastening to the door fastening element. The fastening body can therefore, for example, have a (corresponding) element for movement guidance, e.g., a slotted guide element. The fastening body can be hollow-cylindrical and, in particular, arranged at an end of the support body facing the door.

[0076] The described door fastening element advantageously enables reliable and secure fastening as well as very quick installation of the device on a door, thus ensuring reliable function. Since the door fastening element can be attached to a variety of different doors, it also advantageously allows the device to have a wide range of applications.

[0077] In a further embodiment, the device comprises the door fastening element. The door fastening element and corresponding advantages have already been explained above.

[0078] In a further embodiment, the carrier body and / or the rotating body has at least one element for transmitting energy from a battery to the drive device. Alternatively or cumulatively, the carrier body and / or the rotating body has at least one element for transmitting energy from a connection element of the device for connecting an external energy source to the drive device and / or to a battery arranged in the battery section. Such means for transmitting energy have already been explained above and can be designed, in particular, as conductor tracks. It is possible for the control device to also be supplied with energy via the at least one element for transmitting energy from a battery to the drive device.

[0079] It is thus conceivable that the drive device and / or a battery are supplied with energy via the connection element if an external energy source is connected to the device via the connection element. This energy can thus be used to operate the drive device and / or to charge the battery. The connection element can be designed for wired or wireless energy transmission, e.g., for inductive or infrared-based energy transmission. An external energy source can be detachably connected to the connection element.

[0080] It is also conceivable for the connection element, and thus the device, to be permanently connected to an external power source, e.g., via a power cable. In this case, the energy for operating the drive device can be provided partially or entirely by the external power source. With such a power supply, the battery can serve as an energy buffer, providing, for example, energy to operate the drive device in the event of a failure of the external power supply.

[0081] The means for energy transmission can, for example, comprise at least one slip ring which is arranged in or on the carrier body, in particular in or on a side of the previously explained base section of the carrier body facing the door.

[0082] Preferably, several electrically insulated slip rings, in particular two slip rings, with different radii can be arranged in or on the carrier body, whereby these can serve in particular for the transmission of drive energy. However, it is of course also conceivable for the slip rings to be arranged in or on the rotating body, and for the carrier body to have contact elements for contacting the slip rings. Furthermore, the means for energy transmission can comprise conductor tracks that are embedded at least partially in the carrier body.

[0083] A potential present at each of the two poles of at least one battery can then be transmitted via these slip rings. For this purpose, these slip rings can be contacted by the previously explained contact elements of the rotating body, whereby this contact is maintained even during a rotational movement of the rotating body.

[0084] These slip rings can in particular be designed as complete slip rings. Via a first slip ring, which serves to transmit the positive potential, a charging potential can then also be transmitted to a pole of the at least one battery, in particular a positive pole. The charging potential can be provided by an element on a circuit board of the device, wherein the charging potential is generated, for example, from a potential applied to the previously explained connection element. Thus, the connection element can comprise a first contact element for contacting a positive potential of the external energy source and a further contact element for contacting a negative pole of the external energy source. The first contact element of the connection element can be electrically connected to a connection element on the circuit board via means for energy transmission, wherein this connection is not routed via one of the slip rings.A charging voltage can then be generated by an element on the circuit board and transferred to the first slip ring. The other contact element of the connection element can be electrically connected via power transfer means to another slip ring, which serves to transmit the negative potential. This slip ring can then be connected to a connection element on the circuit board via further power transfer means.

[0085] In a further embodiment, the carrier body and / or the rotary body comprises at least one element for contact-based position determination. The contact can in particular be an electrical contact. The contact-based position determination can in particular be a sliding contact-based position determination. Thus, the carrier body and / or the rotary body can comprise elements that are arranged and / or designed such that, at least in angular positions from selected angular ranges, during a rotational movement of the rotary body, electrical contact is established between an element on the rotary body side and an element on the carrier body side. Preferably, in angular positions from angular ranges different from the selected angular ranges, no electrical contact can be established between the elements. The angular positions or angular ranges can refer to a predetermined reference angle.Furthermore, contact states of the elements, in particular a state with established contact and a state with no contact, and in particular their temporal progression during the rotational movement, can be determined. These can be determined, for example, as a function of a temporal progression of a potential of an element for contact-based position determination, e.g., by the control device. Depending on the contact state or a temporal progression, a direction of rotation and a change in angular position can be determined by the rotational movement. A current angular position can then be determined with reference to a reference angle, in particular both for an actuator-supported and a manually performed locking movement.

[0086] A position-determining element can be designed in the same way as or by means of an energy-transmitting element. It is conceivable that an energy-transmitting device could also serve for position determination.

[0087] For example, the device can comprise, as element(s) for position determination, one or more further slip rings arranged electrically insulated from one another, in particular two further slip rings, with different radii, which can in particular be arranged in or on the carrier body. A radius of one of these slip rings can be different from the radii of the slip rings for drive energy transmission, in particular smaller than or larger than these radii, but also lie between these radii. The radii of the slip rings are in particular selected such that slip rings for drive energy transmission and slip rings for position determination are arranged electrically insulated from one another.

[0088] A slip ring for position determination can be an incomplete slip ring. An incomplete slip ring comprises at least one ring segment that can be contacted to establish an electrical contact and at least one electrically non-contactable ring segment in which no electrical contact can be established with the slip ring (insulating section). Thus, the device can include at least one additional slip ring, in particular an incomplete slip ring, for determining the position of the rotating body.

[0089] In particular, at least one contactable segment, preferably a plurality of contactable segments, of at least one incomplete slip ring can be arranged on the door-facing surface of the base section of the rotating body, wherein an incomplete slip ring consists of at least one contactable segment or a plurality of electrically insulated contactable segments. The at least one contactable segment and at least one insulating section can be arranged along a circular line on the surface, wherein a center line of the at least one segment and a center line of the at least one insulating section are arranged on the circular line.

[0090] If such an incomplete slip ring comprises a number of s segments, where s can be equal to or greater than 1, a length of a circular arc-shaped center line of a segment and a length of a circular arc-shaped center line of an insulating section adjacent along the circular line can each correspond to the total length of the circular line divided by 2 x s, or a central angle of the respective center line can be 3607 (2 x s). Segments of several, particularly preferably exactly two, incomplete slip rings with different radii are preferably arranged on the surface of the base section of the rotating body facing the door. The segments of different slip rings can be arranged along circular lines with different radii. Segments of different slip rings can be arranged at an angular offset from one another, in particular with an angular offset corresponding to half a segment length.This can mean that a radial line along which a segment, in particular a segment start or end, of a first incomplete slip ring is arranged is arranged with an angular offset from a radial line immediately adjacent in the circumferential direction, along which a segment, in particular a segment start or end, of another incomplete slip ring is arranged. This angular offset can be (-)3607 (4 xs).

[0091] The device can comprise, as a further element for determining the position, at least one contact element for contacting the contactable segments of an incomplete slip ring, which can be arranged in particular on the rotating body. For each incomplete slip ring of the device, the device can comprise, for example, a number t of contact elements, where t can be equal to or greater than 1. Preferably, the number s of segments is an integer multiple of the number t of contact elements. Several contact elements can be arranged along a circular line with the same radius as the circular line of the incomplete slip ring, in particular uniformly.

[0092] If the device comprises a plurality of slip rings, the at least one contact element for contacting the at least one segment of a first incomplete slip ring (first contact element) can be arranged at an angular offset to the at least one contact element for contacting the at least one segment of a further incomplete slip ring (further contact element), in particular with an angular offset of 3607 (2 x s), where s - as explained above - can be one or an integer multiple of one. This can mean that a radial line along which the first contact element, in particular its center point, is arranged, is arranged at an angular offset to a radial line immediately adjacent in the circumferential direction, along which the second contact element, in particular its center point, is arranged.During a rotary motion, contact elements can move along a circular path. During the motion, a contactable segment can be in a contacted state, in which it is electrically contacted by a contact element, or in a non-contacted state, in which it is not contacted by a contact element. Thus, a contacting or non-contacting state can occur for a contact element during the motion.

[0093] These states can be determined by evaluating electrical signals, in particular a potential, e.g. by the control device. For example, a potential in the contacted or contacting state can be different from the potential in the non-contacted or non-contacting state, where the potential can be, for example, a potential applied to the contact element or to the segment. By determining the contact states, in particular the temporal sequence of the different contact states that arise during a rotary movement, a direction of rotation and an angle of rotation of the rotary movement can be determined. This in turn enables the current angular position of the rotary body to be determined starting from a zero angle position determined, for example, during calibration or a reference run, even during or after a locking movement carried out by manual actuation.

[0094] The energy transmission means thus enable reliable energy transmission and thus operation of the drive device even during rotation of the rotating body. They can also enable rotational position determination. In particular, this enables reliable rotational position determination with very low energy consumption.

[0095] Furthermore, the device can comprise at least one of the following elements or devices: the previously explained connection element for connecting an external energy source, at least one optical output element, at least one light source, at least one haptic actuating element, at least one control device for controlling the operation of the device, at least one communication device.

[0096] An external energy source connected via the connection element can charge the at least one battery. It is possible for the device to have at least one further energy storage device, e.g. for supplying energy to the control device, in addition to the battery for supplying energy to the drive device. In this case, this further energy storage device can also be charged via the connection element. The connection element can - as explained above - comprise a plurality of contact elements for contacting different voltage potentials of the external energy source, e.g. a first contact element for contacting a positive potential and a further contact element for contacting a negative potential. This can correspond, for example, to the potential at a negative pole of the battery. The connection element can furthermore have at least one magnetic element for magnetically fastening the external energy source oran external energy transfer element such as a charging plug.

[0097] The optical output element can be used to output an optically detectable signal, in particular to a user. At least part of this optical output element can be arranged on a front side of the device facing away from the door. Thus, the output element can be arranged, for example, in or on the rotating body, preferably in or on the base section of the actuating body of the rotating body.

[0098] The device can also comprise at least one light-guiding element. Radiation generated by a light source can be guided by this at least one light-guiding element to the optical output element, through which the radiation is then output as an optically detectable signal. The at least one light-guiding element can be arranged in a stationary manner on the carrier body, in particular in or on a circuit board, wherein the circuit board is arranged in a stationary manner on the carrier body. If the device comprises a plurality of light-guiding elements, the radiation guided by each of the light-guiding elements can be guided to the optical output element. The light-guiding element can in particular be curved or have a curved section for beam guidance. The light-guiding element can have an incident radiation section, wherein radiation is radiated into the light-guiding element via the incident radiation section, e.g. from a light source.Furthermore, the light-guiding element can have an emission section through which radiation exits the light-guiding element to the optical output element. A central center line of the light-guiding element, which connects the incident radiation section and the emission section, can be curved.

[0099] The light-guiding element can be a ring or ring-segment-shaped element. The at least one light-guiding element can also comprise different segments, which can be optically separated segments. This can mean that radiation radiated into a first segment is not transmitted into a further segment. Thus, different radiations, in particular from different light sources, can be transmitted separately through the different segments. If the light-guiding element is (partially) ring-shaped, the different segments can each have central angles of the same size, but preferably central angles of different sizes. In other words, the length of the circular arcs formed by the different segments can be the same or different from one another. E.g.a first segment may have a central angle that is k times the central angle of another segment, where k may be an integer and may be, for example, 3.

[0100] As an alternative to forming a light-guiding element with different segments, the device can comprise a plurality of light-guiding elements, which can be optically separated from one another. These light-guiding elements can also be partially annular, in particular with identical or different center angles, in accordance with the preceding embodiments.

[0101] The at least one light source can be designed as an LED, for example, but various light source designs are also conceivable. The light source can be arranged in a fixed location on the carrier body, in particular in or on the circuit board. The device preferably comprises a plurality of light sources, wherein at least one of the light sources is arranged such that radiation can be radiated into a first light-guiding element or into a first segment of a light-guiding element. At least one further light source can be arranged such that radiation can be radiated into a further light-guiding element or into a further segment of the light-guiding element.

[0102] The haptic actuating element can be used to generate an actuating signal through manual actuation by a user. This actuating signal can, for example, be a control signal for a locking movement. It can, in particular, be arranged on a front side of the device facing away from the door. Thus, the actuating element can, for example, be arranged in or on the rotating body, preferably in or on the base section of the actuating body of the rotating body, or form a part, in particular a central part, of this base section. The at least one haptic actuating element can, in particular, be designed as a push button or comprise such a button. The haptic actuating element is preferably mechanically connected to the rotating body in a rotationally fixed manner. The explained optical output element can have or form a central through-opening or recess in which the haptic actuating element can be arranged. E.g.The optical output element can have or form a hollow cylindrical section, wherein the haptic actuation element is arranged in an interior volume of this section. An end face of the cylinder wall facing away from the door can form part of the end face of the device facing away from the door. Overall, the end face facing away from the door can therefore comprise an end face of the manual actuation section, the end face of the cylinder wall of the hollow cylindrical section of the optical output element facing away from the door, and a surface of the haptic actuation element facing away from the door. The hollow cylindrical section of the optical output element can form an illuminated ring that runs around the haptic actuation element.

[0103] By actuating the haptic actuating element, a switching element of the device, in particular a switching element arranged on the circuit board, can be actuated to generate a switching signal. For this purpose, the device can comprise a force transmission element, in particular a spring-mounted one, which transmits a pressure force exerted on the haptic actuating element to the switching element. Thus, when actuated by a user, the push button and the force transmission element can execute a switching movement, during which the switching element is actuated. The spring-mounted mounting can exert a restoring force on the force transmission element and the push button. This can lead to a movement of the force transmission element and the push button whose direction is opposite to the switching movement direction, whereby the actuation of the switching element is canceled.Furthermore, the spring-loaded mounting can also provide a clearly perceptible haptic feedback for the user. However, spring-loaded mounting is not mandatory, so the force transmission element can also be non-spring-loaded.

[0104] The control device can be arranged in a stationary manner on the carrier body, in particular in or on the circuit board. It can be designed as a computing device, which in particular can comprise at least one microcontroller or an integrated circuit or can be designed as such. The control device can, for example, control the generation of a stator voltage, wherein the device can comprise at least one element for generating this stator voltage. This element can also be arranged in or on the circuit board. The control device can also control the generation of a charging voltage for the at least one battery, wherein the device can comprise at least one element for generating this charging voltage. This element can also be arranged in or on the circuit board. The control device can also process a signal generated by actuating the haptic operating element and, depending on this generated signal, e.g.generate a control signal. The control device can also control the operation of the at least one light source and / or control communication of the device with at least one external device, e.g. a mobile terminal such as a mobile phone or a server device. Data or signal transmission serving the communication can take place via the at least one communication device. The at least one communication device can be designed in particular for wireless communication. This can take place, for example, according to one or more standards, e.g. according to the Bluetooth standard, a WLAN standard, an NFC standard, a Z-Wave standard and / or another radio standard. Such a communication device can also be arranged in or on the circuit board.

[0105] The components of the device can be made of various materials. Thus, the following elements can be made of plastic, in particular a glass-fiber-reinforced polymer or glass-fiber-reinforced thermoplastic such as PA, PBT, or PPA: the receiving body of the rotating body, which serves to transmit the positive potential; a cover element of the rotating body; a carrier fastening element; the carrier body; and the planetary gear carrier. However, other materials such as carbon fibers or glass beads can also be mixed into the plastic as an alternative or in addition to glass fibers.

[0106] The following elements can also be made of plastic, in particular polymethyl methacrylate, polyamide, in particular polyamide 12, polyoxymethylenes or styrene-acrylonitrile copolymer: the optical output element, the light-guiding element.

[0107] The following elements can also be made of plastic, in particular polyoxymethylene (POM), especially a homopolymer POM: a coupling element, a planetary gear, and a connecting element for connecting the receiving body and the actuating body. A carrier element for a light-guiding element can also be made of plastic, in particular a polycarbonate. A cover element of the carrier body can also be made of plastic, in particular an acrylonitrile-butadiene-styrene copolymer. A non-conductive material of the connection element, which can in particular be arranged between the contact elements explained for their electrical insulation, can be made of plastic, in particular PPS.

[0108] The following elements can also be made of metal, in particular sintered metal, steel, preferably stainless steel, or non-ferrous metals such as aluminum or bronze: the actuating body of the rotating body, the push button, a coupling element, in particular a coupling ring gear, and the rotor. These specifications are purely exemplary; other materials may also be selected.

[0109] A device having the features of any of the devices described in this disclosure

[0110] Embodiments advantageously provide a smart lock with low weight, low installation space, and low energy consumption, yet enable rapid execution of the locking movement and thus a short locking time. It also enables reliable, particularly actuator-assisted, operation of a lock over a wide range of rotation angles. The noise level during actuator-assisted operation is low. Furthermore, the smart lock is suitable for a variety of locking cylinders and locks, as well as for a variety of relative arrangements between the door handle and the door lock. A further advantage is the simple and quick installation of the proposed smart lock.

[0111] Further proposed is a method for operating a device for actuating a lock according to one of the embodiments described in this disclosure, wherein the drive device is operated to generate a rotary movement of the rotary body. In the assembled state, in which the rotary body is mechanically connected via an actuating element, e.g., a lock cylinder actuating element, or directly to a lock element, this rotary movement can then generate / cause a locking movement of the lock. In particular, the control device can generate a corresponding control signal for the drive device. The control device can also generate the stator voltages, in particular their temporal profiles, such that the desired rotary movement is generated. The rotary movement then serves to open or close the lock. The control signal can be generated as a function of an input signal. E.g.,An input signal can be generated by means of the haptic actuating element. The input signal can also be generated by a device external to the device, e.g., by a mobile device. In this case, the input signal can, in particular, be an encrypted input signal that is encrypted for a specific device. In particular, the device can be controlled only or also by input signals that are encrypted for a specific device, thereby ensuring that control is only by authorized users. It is also possible for the control device to determine a rotational position of the rotating body. This has already been explained above. The control device can then control the drive device depending on the determined rotational position.

[0112] The control device can generally control the operation of the device, in particular also a calibration operation, and can carry out necessary or desired functions for this purpose, e.g. safety functions such as a function for preventing overcurrent.

[0113] The device is thus configured to carry out a method according to one of the embodiments described in this disclosure. Further embodiments of a device for actuating a lock are also proposed, such a device comprising a carrier body, a rotating body for generating a locking movement of the lock, which is rotatably mounted in or on the carrier body, and a drive device for driving the rotating body. These further embodiments can form a second, a third, and a fourth variant of the device for actuating a lock according to the invention. This device according to one of the further embodiments is further developed with at least one of the following features or as follows:

[0114] • According to the second variant of the invention, the support body has at least one hollow section and a base section, wherein a section of the rotating body extends through a through-opening in the base section of the support body. The rotating body can comprise a receiving body, wherein the receiving body is arranged in at least part of an internal volume of the hollow section and is connected to the section of the rotating body that extends through the through-opening in the base section of the support body. The rotating body can also comprise an actuating body. This can also be connected to the explained connecting section.

[0115] • According to the third variant of the invention, the device comprises an optical output element and at least one light source, wherein the device has at least one light-guiding element, wherein radiation generated by a light source is guided through the at least one light-guiding element to the optical output element. The rotating body can have the optical output element and the light-guiding element can be fastened to the carrier body. The light-guiding element can be curved or have at least one curved section. The light-guiding element can be a ring-shaped or ring-section-shaped element. The light-guiding element can comprise different segments that are optically separated from one another, or the device can comprise a plurality of light-guiding elements that are optically separated from one another.The device can comprise at least one haptic actuating element, wherein the at least one haptic actuating element and / or at least one element for mechanically coupling the actuating element to a switching element of the device is arranged at least partially in an internal volume enclosed by the at least one light-guiding element. According to the fourth variant of the invention, the drive device is designed as an external rotor motor.

[0116] The explanations contained in this disclosure regarding the design and / or arrangement of the device, in particular its elements, parts, components, and bodies, also apply to a device according to one of the further embodiments, in particular also to the second, third, and fourth variants of the invention. These can therefore be further developed accordingly.

[0117] Also described is a method for operating such a device according to one of the further embodiments, wherein the drive device is operated to generate a rotational movement of the rotating body.

[0118] The second variant of the invention solves, in particular, the technical problem explained above, enabling the device to be designed with very little installation space. The following aspects of the further development are conceivable, particularly for, but not exclusively limited to, the second variant of the invention:

[0119] The hollow section can thus be designed as a hollow partial body, in particular as a hollow cylindrical partial body. A longitudinal axis of the hollow section can correspond to the longitudinal axis of the carrier body or be arranged parallel to it. The base section can be arranged in an internal volume of the hollow section. This base section can in particular be arranged in the internal volume of the first section and thus form an intermediate wall in this internal volume, which separates the internal volume into several, in particular two, sub-volumes. In other words, this base section can be arranged along the longitudinal axis of the carrier body or of the hollow section between the end of the hollow section facing the door and the end facing away from the door and does not form a front-side end section of the hollow section. However, it is also conceivable for the base section to form a front-side end section of the hollow section.A surface of the base section can be oriented perpendicular to the longitudinal axis of the carrier body. Different sections or partial bodies of the rotating body can be connected by the section extending through the through-opening, in particular in a rotationally fixed manner. In an internal volume, in particular a partial volume facing the door, of the hollow section, a receiving body or first hollow body can be arranged. This can serve to accommodate at least one battery and / or a lock cylinder actuating element. A diameter of the through-opening can be smaller than an internal diameter of the hollow section and / or smaller than an external diameter of a section or partial body of the rotating body arranged in the first partial volume and / or smaller than an external diameter of a section or partial body of the rotating body arranged in the further partial volume.As explained, the base section can divide an internal volume of the hollow section into two sub-volumes. This advantageously enables a very space-saving design of the device, while at the same time ensuring that elements can be arranged in the internal volume of the device and thus protected from external influences. Furthermore, the hollow section of the carrier body can be a first section of the carrier body with a first outer diameter, wherein the carrier body comprises a further section with a further outer diameter, wherein the further outer diameter is smaller than the first outer diameter, wherein the further section is fastened to the base section. As explained previously, the further section can have a fastening section for fastening the stator.These embodiments advantageously enable a space-saving design of the device, which nevertheless enables stable fastening of the drive device and thus reliable operation. Furthermore, the rotating body can comprise at least one receiving body, wherein the receiving body is arranged at least partially in an internal volume of the hollow section of the carrier body. The receiving body can be designed as a (first) hollow body and can form a partial body of the rotating body. The receiving body can serve to receive a locking cylinder actuating element and / or to receive the at least one battery. In particular, the receiving body can be arranged in a partial volume of the internal volume of the hollow section facing the door. The receiving body is connected to the section of the rotating body that extends through the through-opening in the base section of the carrier body.Via this connecting section, the receiving body can be connected to further partial bodies of the rotating body, whereby these can (but do not have to) be arranged, for example, in a partial volume of the internal volume of the hollow section facing away from the door. This advantageously results in a very space-saving design of the device, while at the same time ensuring that a receiving body of the rotating body can be arranged in the internal volume of the carrier device and thus well protected from external influences. Furthermore, the receiving body can - as already explained - serve to accommodate at least one battery. This advantageously reduces the installation space required by the device, since no installation space is provided in the carrier body for one or more batteries. Furthermore, the battery is arranged in the receiving body and is protected from external influences. Furthermore, the rotating body can comprise at least one actuating body.This forms a manual actuation element for actuation by a user. Furthermore, the actuation body is connected to the section of the rotating body that extends through the through-opening in the base section of the carrier body. As already explained with regard to the receiving body, the actuation body can also be connected via this connecting section to further partial bodies of the rotating body, in particular to the receiving body. The actuation body can be designed as a (further) hollow body. Thus, the further hollow body or at least a section thereof can form a manual actuation element. The actuation body can also form a partial body of the rotating body. This can advantageously reduce the installation space required by the device. Furthermore, the receiving body can be arranged at least in section in an internal volume of the actuation body. This has already been explained above.Furthermore, a stator of the drive device can be attached to the support body, and the rotating body has at least one battery section for accommodating at least one battery for supplying power to the drive device. Alternatively, a stator of the drive device is attached to the rotating body, and the support body has at least one battery section for accommodating at least one energy storage device for supplying power to the drive device. This and corresponding advantages have already been explained above.

[0120] The third variant of the invention solves, in particular, the technical problem of creating a device and a method for actuating a lock that allow the device to be designed with very little installation space, while ensuring reliable output of optical signals. Furthermore, it may be desirable for the device to have at least one of the previously mentioned advantageous properties and, in particular, to reduce installation space requirements and / or to be suitable for actuating a plurality of locking cylinders or locks, as well as for mounting on doors with a plurality of relative arrangements between the door handle and the door lock. The following aspects of the further development are conceivable, particularly for, but not exclusively limited to, the third variant of the invention:

[0121] The light source can thus be used to generate radiation, in particular radiation with wavelengths in the visible wavelength range. The light source can be designed such that, in different operating states, radiation with wavelengths from different (operating state-specific) wavelength ranges can be generated. However, the light source can also generate only radiation with a fixed wavelength or with radiation from a fixed wavelength range. The light source can in particular be designed as an LED. Of course, other embodiments for the light source are also conceivable. Energy for operating the light source can be provided by the at least one battery and / or an external energy source. For this purpose, the light source or an element for controlling operation can be connected to the battery and / or the external energy source, e.g. via means for energy transmission.The device preferably comprises a plurality of, in particular at least two, light sources. However, it is also conceivable for the device to comprise exactly one light source. This / these light source(s) can be designed as explained above. The optical output element can be designed and / or arranged in or on the device in such a way that the radiation generated by the light source can be emitted by the optical output element into an external environment of the device, in particular for visual detection by a user, i.e. as an optically detectable signal. Such an optical signal can, for example, represent a state, e.g. an operating state, of the device and / or the lock. For example, an optical signal can represent that:

[0122] • the lock is in a closed or open state,

[0123] • the receipt of an input signal is confirmed,

[0124] • a blocking movement is currently being carried out,

[0125] • a battery charge level is below a predetermined threshold,

[0126] • a fault condition exists, e.g. an engine blockage,

[0127] • the door is in an open or closed position.

[0128] For this purpose, the optical output element can be made of a material that is permeable to radiation, in particular for radiation with wavelengths from one or more predetermined wavelength ranges, in particular for the wavelength ranges of the radiation generated by the light source. The optical output element can thus have a higher transmittance for such radiation than for radiation with wavelengths outside the wavelength range(s). The optical output element is preferably made of a very clear material, in particular with a transmittance of 0.95 to 1.0. The optical output element can have a rough surface, in particular a rough surface facing away from the door. This advantageously ensures homogeneous light output. At least part of this optical output element can be arranged on an end face of the device facing away from the door. For example, the output element canbe arranged in or on the rotating body, preferably in or on the base section of an actuating body of the rotating body. The light source and the optical output element can thus be optically connected by the light-guiding element. For this purpose, the light-guiding element can be designed and / or arranged in or on the device in such a way that this optical connection is established or can be established. For this purpose, the light-guiding element can also be made of a material that is permeable to radiation, in particular for radiation with wavelengths from one or more predetermined wavelength ranges, in particular for the wavelength ranges of the radiation generated by the light source. The light-guiding element can thus have a higher transmittance for such radiation than for radiation with wavelengths outside the wavelength range(s).It is possible for the light-guiding element to consist of a mixed material, wherein the mixed material comprises at least a base material and scattering particles that scatter the radiation radiated into the light-guiding element. This advantageously makes it possible to achieve more homogeneous irradiation through the light-guiding element. Radiation that is radiated into the light-guiding element in one section can therefore be more homogeneously distributed and emitted from the light-guiding element. If the device comprises a plurality of light-guiding elements, the radiation guided through each of the light-guiding elements can be guided to the optical output element. The light source and the optical output element can be separately formed elements that are arranged at different locations in or on the device. In particular, the light source can be arranged in an internal volume of the device that is surrounded by an outer wall of the device.Furthermore, the light source can be arranged such that radiation generated by the light source does not radiate into the external environment of the device, i.e. the space outside the outer wall, and thus cannot be visually detected from the outside, in particular not with a predetermined intensity. The optical output element can be arranged on the outer wall of the device. In particular, the light source can be arranged stationary relative to the carrier body and the optical output element can be arranged stationary relative to the rotating body. For example, the light source can be attached to the carrier body and the optical output element can be attached to the rotating body. The light source can be arranged stationary on the carrier body, in particular in or on the circuit board. The device preferably comprises a plurality of light sources, wherein at least one of the light sources is arranged such that radiation can be radiated into a first light-guiding element or into a first segment of a light-guiding element.At least one further light source can be arranged such that radiation can be radiated into a further light-guiding element or into a further segment of the light-guiding element. The provision of the light-guiding element advantageously ensures reliable output of optical signals, which facilitates information acquisition by a user and thus increases the usability of the device. Furthermore, the light-guiding element can enable spatial separation of the light source and the optical output element, which in turn can save installation space, particularly if the light source is arranged in a previously unused section of the internal volume. In particular, the light-guiding element makes it possible for the optical output element not to have to be arranged in front of the light source in the radiation direction of the light source.Rather, an arrangement of the light source and optical output element is enabled in such a way that installation space can be saved compared to the arrangement in front of the light source. In particular, the light-guiding element can deflect the radiation emitted by the light source accordingly. For example, the optical output element can be arranged laterally offset from the light source with respect to the radiation direction.

[0129] In particular, a light source can be arranged in a stationary manner relative to the carrier body in such a way that an orientation of the radiation direction of the light source is different from a (main) radiation direction of the optical output element, in particular not oriented parallel thereto. If, for example, a main radiation direction of the optical output element is oriented away from the door, e.g. parallel to the central longitudinal axis of the device, the radiation direction of the light source can be oriented transversely thereto, in particular at a right angle relative to the main radiation direction. The light guide element can then deflect the light emitted by the light source in such a way that it is then emitted by the optical output element along the (main) radiation direction.

[0130] It is possible for the light source to be operated in such a way that radiation is emitted through the entire optical output element or only through one or more selected subsections e) of the optical output element.

[0131] Furthermore, the rotating body can have the optical output element, and the light-guiding element is fastened to the carrier body. Thus, the light-guiding element can be arranged in a stationary manner relative to the carrier body, in particular in or on a circuit board, wherein the circuit board is arranged in a stationary manner on the carrier body. The light source can also be arranged in a stationary manner relative to the carrier body. The light-guiding element and the optical output element can therefore move relative to one another during a rotary movement of the rotating body. For this purpose, an air gap can be formed between the light-guiding element and the optical output element. By fastening the light-guiding element to the carrier body, an increase in the weight of the rotating body is advantageously avoided, which also enables energy savings during operation of the device. At the same time, the aforementioned reliable output of optical signals and space savings can be ensured.However, it is also conceivable that only the light source is arranged stationary relative to the support body, while the light-guiding element and the optical output element are arranged stationary relative to the rotating body. In this case, the light source and the entire assembly of light-guiding element and optical output element can move relative to each other during a rotational movement of the rotating body.

[0132] In particular, a stationary optical output signal can be generated in an advantageous manner for a viewer, even if the optical output element and possibly also the light-guiding element rotate.

[0133] Furthermore, the light-guiding element can be curved or have at least one curved section. In particular, this design of the light-guiding element allows the radiation generated by the light source to be guided to the optical output element along a curved radiation path defined by the light-guiding element. Thus, a central center line of the light-guiding element, which can correspond to a main propagation path or middle propagation path, can have a curved course. A radiation path defined by the light-guiding element can have sections that enclose an angle of greater than or equal to 45°, preferably greater than or equal to 90°, with a common plane. This ensures reliable transmission of radiation to the optical output element, enabling a space-saving relative arrangement between the light source and the optical output element.Furthermore, the light-guiding element can have an input section for radiating radiation into the light-guiding element and an output section for radiation exiting the light-guiding element to the optical output element, wherein a central center line of the light-guiding element, which connects the input section and the output section, is curved. It is therefore possible, not only in this embodiment, for an air gap to be arranged between the light source and the light-guiding element, in particular the input section, and / or between the light-guiding element and the optical output element, in particular the output section. The light source can be arranged and / or configured such that this radiation radiates into the light-guiding element via the input section, wherein this radiation is then guided along the central center line to the output section.Radiation emerging from this emission section can then enter the optical output element and be emitted by it into the external environment. This also ensures the reliable transmission of radiation to the optical output element, enabling a space-saving relative arrangement between the light source and the optical output element. The curved design advantageously enables light guidance with the previously explained different orientations of the emission direction of the light source and a (main) emission direction of the optical output element. Furthermore, the light-guiding element can be a ring-shaped or ring-segment-shaped element. The ring or the ring segment can completely or partially enclose an inner surface or an inner volume.A central center line of a cross-sectional area of ​​the light-guiding element in a cross-sectional plane in which an axis perpendicular to the inner surface is also arranged can be curved. The cross-sectional area can be L-shaped, wherein a transition between different legs of the cross-sectional area can be achieved by rounded edges. The ring-shaped or ring-segment-shaped design advantageously results in a space-saving integration of the light-guiding element into the device, in particular since further elements of the device can be arranged in the enclosed internal volume. Furthermore, a light-guiding element can comprise various segments that are optically separated from one another. For example, an annular light-guiding element can comprise several segments, each forming ring sections. Alternatively, the device comprises several light-guiding elements that are optically separated from one another. For example,the device can comprise several segments designed as ring sections.

[0134] Optical separation can mean that radiation that is radiated into a first segment is not or cannot be transmitted into a further segment. This means that different radiations, in particular from different light sources, can be transmitted separately through the different segments. This advantageously ensures reliable output of an optical signal and thus increases the quality of use. The different segments can each have central angles of the same size, but preferably central angles of different sizes. In other words, the length of the circular arcs formed by the different segments can be the same or different. For example, a first segment can have a central angle that is k times the central angle of a further segment, where k can be an integer and can be 3, for example.The various segments can in particular be segments of a ring-shaped light-guiding element and / or ring-segment-shaped light-guiding elements of a device. The at least one light source can be operated such that radiation is radiated to the optical output element only through exactly one segment or exactly one light-guiding element. In this case, radiation can only be output in a partial section of the optical output element. The at least one light source can be operated such that radiation is radiated to the optical output element only through exactly one segment or exactly one light-guiding element or through several, but not all, segments or light-guiding elements. In this case, radiation can only be output in one or more partial sections of the optical output element.Furthermore, the device can comprise at least one haptic actuating element for generating an actuating signal, wherein the at least one haptic actuating element or a force transmission element for transmitting a compressive force exerted on the haptic actuating element is arranged at least partially in an internal volume enclosed by the at least one light-guiding element. The haptic actuating element has already been explained above. This advantageously results in a space-saving design of the device. Furthermore, a light-guiding element can be embedded in a carrier element. The carrier element can be annular or hollow disc-shaped and have a through-opening. It is then possible for the at least one haptic actuating element or the force transmission element to extend at least partially through this through-opening.A material of the carrier element can be made of a material that is opaque to radiation, in particular opaque to radiation with wavelengths from one or more predetermined wavelength ranges, in particular to the wavelength range of the radiation generated by the light source. Alternatively, the material of the carrier element can have a lower transmittance than the light-guiding element for this(these) wavelength range(s). The fact that the light-guiding element is embedded can mean that it is surrounded by the material of the carrier element except for the previously explained irradiation and emission sections. This can prevent radiation from escaping at undesired locations along the light-guiding element, which could undesirably reduce the quality of the output of the optical signal. Furthermore, a material of the carrier element can be opaque to radiation emitted by at least one light source.This and corresponding advantages were explained previously. Furthermore, a material of the carrier element can be reflective for radiation emitted by at least one light source. This enables the radiation to be transmitted with as little loss as possible and thus a reliable output of an optical signal. Furthermore, a force transmission element can be arranged in an internal volume of the carrier element. The internal volume can in particular be the volume of a through-opening formed by the carrier element. This was explained previously. This advantageously results in a space-saving design of the device. Furthermore, the carrier element can be annular or disc-shaped. This was explained previously. This advantageously results in simple production of the carrier element, which enables the space-saving design.Furthermore, the device can comprise a plurality of light sources, wherein at least one of the light sources is arranged such that radiation is radiated into a first light-guiding element or into a first segment of a light-guiding element, and at least one further light source is arranged such that radiation is radiated into a further light-guiding element or into a further segment of the light-guiding element. This advantageously allows many different optical signals to be output, which increases the quality of use. Furthermore, the at least one light source can be operated to generate radiation for generating an optical signal. Multiple light sources can also be operated simultaneously or sequentially, wherein, in the latter case in particular, a time-varying optical signal can be generated.In sequential operation, an optical signal can also be generated that is output at different times via different sections of the optical output element. The light source(s) can be controlled by the control device.

[0135] The fourth variant of the invention solves, in particular, the technical problem of creating a device and a method for actuating a lock that allows the device to be designed with very little installation space and, in particular, can reliably generate a torque for executing a locking movement. The following aspects of the further development are conceivable, particularly for, but not exclusively limited to, the fourth variant of the invention:

[0136] In an external rotor motor, the movable rotor ("rotor") can rotate externally around the internal, immobile stator. In particular, the stator is located inside the rotor, i.e., in an internal volume encompassed by the rotor, and is thus enclosed by it. Thus, in an external rotor motor, torque, i.e., the drive torque for a locking movement, can be delivered / transmitted directly from the rotating external rotor, e.g., to a component that is mechanically connected to the rotor or connectable to it. External rotor motors combine the advantages of a very compact, space-saving, and robust design with low wear and high efficiency while simultaneously providing high torque. Furthermore, according to a first alternative, a stator of the drive device can be attached to the carrier body. As previously explained, a stator can be attached to a mounting section of another section of the carrier body.However, the stator can also be fastened to the carrier body in a different way, e.g. directly to the base section or to the first section. In this case, the rotating body can have at least one section for receiving at least one battery for supplying energy to the drive device. According to a second alternative, the stator of the drive device can be fastened to the rotating body. In this case, the carrier body can have at least one battery compartment. Furthermore, the rotating body can comprise, in particular regardless of the fastening location of the stator, at least one receiving body for receiving the at least one battery and at least one actuating body, wherein the receiving body is arranged at least in sections in an internal volume of the actuating body.As explained above, the carrier body can comprise a first section with a first outer diameter and a further section with a further outer diameter, wherein the further outer diameter is smaller than the first outer diameter, wherein the further section has a fastening section for fastening the stator. This advantageously results in a space-saving design of the device, which nevertheless enables stable fastening of the stator. As also explained above, the carrier body can comprise a base section for connecting the sections with different outer diameters, wherein the further section is fastened to the base section. This also advantageously enables a space-saving design of the device, which nevertheless enables stable fastening of the stator.As also explained above, the external rotor motor can be designed as a brushless direct current motor (BLDC motor) or as a permanent magnet synchronous motor (PMSM motor). Furthermore, a rotor of the drive device can be rotatably mounted on or rotatably relative to the carrier body or on the rotating body. Such a mounting on the carrier body can occur in particular if the stator is fastened to the carrier body. Such a mounting on the rotating body can occur if the stator is fastened to the rotating body, wherein such a fastening can occur in a similar way to a fastening on the stator. This has also already been explained above and advantageously enables reliable operation of the drive device and thus of the device.

[0137] Further described is a device for actuating a lock, comprising: a carrier body, a rotating body which is rotatably mounted in or on the carrier body, wherein the rotating body has at least one section for receiving the locking cylinder actuating element, a drive device for driving the rotating body, an optical output element, at least one light source and a control device for controlling the at least one light source. Preferably, the device comprises a plurality of light sources. The light source(s) and the optical output element can be arranged such that radiation emitted by the light sources is output by the optical output element, e.g. for detection by a user. The at least one light source and the optical output element can be arranged in a stationary manner relative to the rotating body, in particular on the rotating body.However, it is also possible for the at least one light source to be arranged on one of the bodies and the optical output element to be arranged on the remaining body, thus performing a relative movement during a rotational movement of the rotating body. Furthermore, the at least one light source can be operated by the control device in such a way that, when the rotating body rotates, an optical signal that is stationary relative to the carrier body is output by the optical output element. This can mean, for example, that an optical signal is output only by a portion of the optical output element.When the rotating body rotates, the at least one light source can be controlled such that the optical signal is output by various subsections of the, in particular, rotating optical output element, whereby, however, the section of the ambient volume into which the radiation is emitted by the various subsections is arranged in a stationary manner relative to the carrier body. For an observer, this results in a stationary output signal even when the rotating body rotates. A method for operating such a device is also described, wherein the at least one light source is operated such that, when the rotating body rotates, an optical signal that is stationary relative to the carrier body is output by the optical output element. With regard to possible further developments of this device and this method, reference is made to the aspects described in this disclosure with regard to the individual components of the device.Furthermore, as explained above, a section of the rotating body can extend through a through-opening in the carrier body. Furthermore, the stator can be fastened to an outer surface of a supporting section of the carrier body. The stator or a stator body can have a through-opening in a central section. An inner surface of the stator delimiting this through-opening can, for example, bear against the outer surface of the supporting section. The stator or stator body can also have or form pole shoes that protrude radially from the central section. The supporting section can, in particular, be the fastening section explained above for fastening the stator. It can be arranged completely outside or at least in sections, but in particular also completely inside, a partial volume of the hollow section of the carrier body facing away from the door.This support section and also a section of the rotating body, in particular the explained connecting section, extend through the through-opening in the central section. For example, the support section extending through the through-opening of the central section can also be hollow-cylindrical in shape, at least in part, and have a through-opening that can form at least part of the explained through-opening of the carrier body, with the section of the rotating body extending through this through-opening of the support section. This advantageously results in a very space-saving design of the device while simultaneously providing stable mounting of the stator and thus ensuring reliable operation of the device.

[0138] Furthermore, the technical problem of creating a door fastening device for a device for actuating a lock is described, which enables simple mounting of the smart lock on a large number of locking cylinders or locks and for a large number of relative arrangements between the door handle and the door lock. Furthermore, the technical problem of creating a cover element for a device for actuating a lock, which provides the best possible protection for the components of the device, in particular against external influences such as dirt particles and moisture. These components should also be designed in such a way that the device can be designed with very little installation space, wherein the device can in particular also have at least one of the advantageous properties mentioned above and can in particular be used to actuate a large number of locking cylinders orLocks and is suitable for mounting on doors with a variety of relative arrangements between the door handle and the door lock.

[0139] In particular, to solve this technical problem, a door fastening element, which can also be referred to as a door fastening device, is described for fastening a device for actuating a lock, in particular a device according to one of the embodiments described in this disclosure, to a door, in particular in the region of a locking cylinder. The door fastening device, which can also be referred to as a door fastening element, refers to an element that can be fastened to the door, in particular in the region of a locking cylinder. The door fastening device can then be fastened to the door in a fixed position relative to the door. The device for actuating the device, in particular a carrier body of this device, can then in turn be fastened to the door fastening device, in particular likewise in a fixed position.The door fastening device can be designed, in particular, as a door fastening plate, preferably as a circular plate. The door fastening device can have at least one recess or through-opening for arranging a locking cylinder section. The door fastening device can be plugged onto such a section, with the protruding section then extending into the recess. A locking cylinder actuating element arranged in the receiving section of the rotating body can then also extend from the rotating body into the locking cylinder through this through-opening.

[0140] The central through-opening can have a plurality of sections, in particular a plurality of circular sections with mutually different diameters. The sections can be connected via a connecting section. While a center line of a first section can correspond to the longitudinal axis of the device (when this is fastened to the door fastening device), a center line of the further section can be arranged radially offset from the longitudinal axis of the device. The further section can then serve to accommodate a screw or other fastening means, which can be screwed from the side of the door fastening device facing away from the door through the further section into any threaded holes present in the locking cylinder or lock or the door.

[0141] The door fastening device has at least one element for mechanical connection to a carrier body or a carrier fastening element of the device. Furthermore, the door fastening device has an adhesive surface for bonding the door fastening device to the door and / or at least one element for establishing a clamping connection with the door, in particular a door element. An adhesive can be applied or arranged on this adhesive surface. An element for establishing a clamping connection can be, for example, a thread or a threaded bore into which clamping screws can be screwed to establish a clamping connection between the door fastening device and the door / door element, in particular the locking cylinder.Thus, a clamping screw screwed into the thread, in particular a tip of the clamping screw, can mechanically contact the door / door element, in particular the locking cylinder or another component of the door / another door element, and exert the clamping force.

[0142] Alternatively, the element for establishing the clamping connection can comprise a deformable portion of the door fastening device. This can be deformed, for example, by actuating an actuating element or by manual actuation in order to clamp the door fastening device to the door / door element.

[0143] In this case, the door fastening device can also include the actuating element. For example, the actuating element can be designed as a screw, wherein this screw can be arranged in or on the door fastening device, in particular in a threaded portion, such that upon actuation of the screw, the deformable portion is deformed to clamp the door fastening device to the door / door element. The deformable portion can then mechanically contact the door / door element.

[0144] The door fastening device preferably comprises a plurality of such elements. These are, in particular, arranged and / or designed to enable reliable and stationary fastening to the door, in particular to the locking cylinder. The arrangement and / or design of such elements can be adapted to the shape of a door element, in particular a locking cylinder. The elements can, in particular, enable the device to be fastened to the door in such a way that the axis of rotation of the rotating body corresponds to the locking cylinder axis of rotation. In particular, elements for establishing a clamping connection can be arranged and / or designed to enable a three-point clamping connection between the door fastening device and the door.The described door fastening device advantageously enables reliable and secure fastening as well as very quick installation of the device on a door, thus ensuring reliable function. Since the door fastening device can be attached to a variety of different doors, it also advantageously allows the device to have a wide range of applications.

[0145] A plurality of elements for establishing a clamping connection can be arranged around a central through-opening of the door fastening device, wherein the central through-opening serves for arranging the locking cylinder actuating element. The central through-opening can be arranged in a recess in a surface of the door fastening device facing the door, wherein the at least one element for establishing a clamping connection is arranged outside the recess and / or in the region of a side wall delimiting the recess. The at least one element for establishing a clamping connection can be designed as a threaded bore. The threaded bore can extend from a side of the door fastening device facing away from the door to the side of the door fastening device facing the door, wherein a center line of the threaded bore is oriented from an opening of the threaded bore facing away from the door to an opening facing the door towards the recess.The door fastening device may further comprise: at least one section for receiving a.

[0146] Fastening screw and / or at least one locking element and / or at least one element for guiding an assembly movement and / or an element for enabling a disassembly movement. The explanations contained in this disclosure regarding the design and / or arrangement of the door fastening element also apply to this door fastening device.

[0147] Further alternatively or cumulatively, the door fastening device can have or form at least one element for establishing a mechanical connection, in particular a detachable one, with the door. For example, the door fastening device can have at least one through-opening that serves to receive a screw for screwing the door fastening device to the door or a lock fastened in the door. In this case, the door or the locking cylinder can comprise at least one thread for receiving such a screw. In particular, if the door fastening device is plate-shaped, it can have or form stiffening webs on one side, in particular on a side facing away from the door. Recesses can be arranged between these stiffening webs.Furthermore, the door fastening device can have the same thickness in the area of ​​these recesses and in the area of ​​the central through-opening explained, whereby an undesirably uneven mechanical deformation during a production-related cooling process can be minimized.

[0148] Furthermore, a plurality of elements for establishing a clamping connection with the door can be arranged around a central through-opening of the door fastening device. As explained, the central through-opening can serve to receive a section of the locking cylinder and / or to receive a locking cylinder actuating element. For example, threaded holes can be arranged around the central through-opening, wherein the threaded holes can be arranged and / or oriented in such a way that reliable fastening to a predetermined locking cylinder is ensured, e.g. to a locking cylinder used in the EU, Switzerland, the United Kingdom, the United States of America, Canada, the Nordic countries or other countries. Thus, the arrangement and / or orientation of the threaded holes can be a country-specific arrangement and / or orientation.The locking cylinder can be a double cylinder, a knob cylinder, a round cylinder, or a half cylinder. Center lines of two different threaded holes can form a predetermined angle, which can be different from 0° or 180°, but can also run parallel to each other.

[0149] This advantageously results in reliable fastening to the door, in particular to a locking cylinder. Furthermore, the at least one element for establishing a clamping connection with the door can be designed as a threaded bore. Such a threaded bore can be arranged in a side wall of a recess in a plate-shaped door fastening device. This advantageously results in simple manufacture of an element for establishing a clamping connection, which enables reliable fastening to the door, in particular to a locking cylinder. Furthermore, the central through-opening can be arranged in a recess or depression in a surface of the door fastening device facing the door, wherein the at least one element for establishing a clamping connection is arranged outside the recess and / or in the region of a side wall delimiting the recess. This side wall can form a stiffening web.This advantageously results in reliable fastening to the door, in particular to a locking cylinder. Furthermore, the threaded bore can extend from a side of the door fastening device facing away from the door to the side of the door fastening device facing the door, with a center line of the threaded bore being oriented from an opening in the threaded bore facing away from the door to an opening facing the door towards the recess. This advantageously results in reliable fastening to the door, in particular to a locking cylinder. Furthermore, the door fastening device can have at least one section for receiving a fastening screw. Such a section can be designed, for example, as a (further) through opening. This advantageously results in a further possibility for fastening the door fastening device to the door.This advantageously increases the number of different doors to which the door fastening device can be attached, and thus the range of applications. Furthermore, a door-facing opening of a threaded bore for establishing a clamping connection can be arranged in a beveled side surface of a recess in the door-facing surface of the door fastening device. These recesses can be open, in particular, towards the door as well as towards the recess with the central through-opening. A surface of the beveled side surface can be oriented perpendicular to the center line of the threaded bore. This advantageously results in simple production of the threaded bore and reliable clamping of the door fastening device to a locking cylinder.Furthermore, the door fastening device can have or form at least one element for mechanical connection, which can also be referred to as a fastening element, to the carrier body, in particular a fastening body of the carrier body. Such an element for mechanical connection can be designed, for example, as a locking element. For example, the carrier body, in particular the fastening body, can have or form at least one locking recess for receiving a locking element of the door fastening device. Of course, a reversed arrangement of the locking recess and the element is also possible. Such an element can also form a locking element, wherein the locking element prevents assembly in the fastened state. This advantageously results in a reliable fastening of the carrier body of a device for actuating a lock to the door fastening device and thus to the door.Furthermore, the door fastening device can have or be designed with at least one guide element for guiding an assembly movement, wherein the device for actuation, in particular the carrier body, is or can be fastened to the door fastening device by carrying out the assembly movement. The assembly movement can be a rotary movement. Such a guide element can be designed as a guide web, as a guide lug or as a guide groove, or in another way. A guide element can be arranged or formed on a radial outer surface or side surface of the door fastening device. If the door fastening device has several such guide elements, these can be arranged or formed irregularly, in particular at different angular distances from one another, along the radial outer surface or the side surface of the door fastening device.In particular, the guide element can be a component of a bayonet lock, which enables a quickly established and detachable mechanical connection of the carrier body to the door fastening device. Such a guide element can therefore simultaneously also form an element for the mechanical connection. The carrier body, in particular the fastening body explained above, can have corresponding fastening and / or guide elements, in particular on an end facing the door, which interact with the fastening and / or guide elements on the door fastening device side. This advantageously results in reliable and simple assembly of the carrier body of a device for actuating a lock on the door fastening device and thus on the door. Furthermore, the door fastening device can have or form at least one element for enabling a disassembly movement.The disassembly movement can also be a rotational movement. In this case, the actuating device, in particular the carrier body, can have or form an element corresponding to this release element, which element interacts with the release element. For example, one of these elements can have a locking element, e.g. designed as a spring element, and the remaining element can have a receiving section for receiving the locking element in the assembled state. Then, for example, during the assembly movement, the actuating device, in particular the carrier body, can be moved relative to the door fastening device in such a way that the locking element moves into the receiving section at the end of the assembly movement, i.e. in a predetermined relative position between the door fastening device and the carrier body.In this state, further relative movement between the carrier body and the door fastening device, in particular a disassembly movement, can be blocked. If the locking element is moved out of the receiving section, e.g. by actuation by a user, the disassembly movement in particular can be released. The door fastening device or the carrier body can have an actuating element, e.g. a push button, which is mechanically connected to the locking element or forms this, wherein a particularly manual actuation of the push button leads to the locking element being moved out of the receiving section. The previously explained element for the mechanical connection, in particular the previously explained locking element, can additionally form the release element. This advantageously results in a reliable, but detachable, attachment of the device for actuating the lock to the door fastening device.Furthermore, the door fastening device can have or form at least one stop element for limiting a relative movement, in particular the assembly movement, between the door fastening device and the actuating device, in particular the carrier body. This stop element can be formed in particular by the previously explained guide element for guiding the assembly movement, but also separately therefrom. This advantageously results in a reliable and simple assembly of the device for actuating the lock on the door fastening device.

[0150] Further described is a cover element for a device for actuating a lock. The cover element can in particular be arranged or fastened to a carrier body of the actuating device. The cover element can be configured such that it can be arranged or fastened to the device in such a way that a mechanical connection between the carrier body and a carrier fastening body, which can also be referred to as a carrier fastening element, or a door fastening device or a door is covered by the cover element. The cover element can be designed as a hollow cylinder. In particular, an end of a connecting section of the carrier body facing the door can be arranged in an internal volume of the cover element. This connecting section is explained in more detail below. An outer surface of the cover element can form a section of the outer surface of the device. E.g.An outer radius of the cover element can correspond to an outer radius of a portion of the device that forms a manual actuation surface for a user. The cover element can be mechanically connected to the support body in a rotationally fixed manner. Furthermore, the cover element, in particular a lateral surface or a lateral portion of a hollow-cylindrical cover element, can have or form at least one through-opening.

[0151] Contact elements of a connection element for connecting an external power source, which will be explained below, can extend through such a through-opening, or these contact elements can be accessible from the outside. An element for enabling a disassembly movement or a locking element can also extend through such a through-opening or another through-opening, or such an element can be accessible or actuated from the outside.

[0152] Also described is a method for mounting a device for actuating a lock on a door fastening device. In this case, an assembly movement, in particular a rotary movement, can be carried out. This allows the device to be mounted on the door fastening device. For example, the device can be placed on the door fastening device with the end facing the door and then the assembly movement can be carried out. In a method also described for dismantling the device for actuating a lock from the door fastening device, a dismantling movement, in particular a rotary movement opposite to the assembly rotational movement, can be carried out. This allows the device to be dismantled from the door fastening device. For example, the dismantling movement can be carried out and the device can then be removed from the door fastening device.Before the disassembly movement is carried out, it can be released, e.g. by actuating a corresponding element.

[0153] A method for mounting a door fastening device on a door is also described. The door fastening device can be glued to the door using the adhesive surface, whereby adhesive can be applied to this surface for this purpose. Alternatively or additionally, a door fastening device can be clamped to the door using an element for establishing a clamping connection, in particular a door element such as the locking cylinder.

[0154] The invention is explained in more detail using exemplary embodiments. The figures show:

[0155] Fig. 1 is a perspective view of a device according to the invention from a side facing away from the door,

[0156] Fig. 2 is a perspective view of a device according to the invention from a side facing away from the door,

[0157] Fig. 3 is a longitudinal section through a device according to the invention,

[0158] Fig. 4 is a perspective view of a carrier body,

[0159] Fig. 5 is a further perspective view of a first hollow body of a

[0160] rotating body,

[0161] Fig. 6 shows a cross section through a device according to the invention in the region of a supporting section of a carrier body,

[0162] Fig. 7 shows a further cross section through a device according to the invention in the region of a supporting section of a carrier body, Fig. 8 shows a detailed section through a device according to the invention in the region of a supporting section of a carrier body,

[0163] Fig. 9 a perspective view of a link ring,

[0164] Fig. 10 is a perspective view of a first coupling ring,

[0165] Fig. 11 is a perspective view of another coupling ring and a

[0166] coupling hollow body,

[0167] Fig. 12 a detailed section of the device in the area of ​​the coupling rings,

[0168] Fig. 13 is a plan view of a circuit board of the device,

[0169] Fig. 14 a detailed section through the device in the area of ​​the circuit board,

[0170] Fig. 15 is a perspective view of a device according to the invention in a further embodiment from a side facing away from the door,

[0171] Fig. 16 is a longitudinal section through the device shown in Fig. 15,

[0172] Fig. 17 is a perspective view of a door fastening element from a side facing the door,

[0173] Fig. 18 is a perspective view of a door fastening element from a side facing away from the door,

[0174] Fig. 19 shows a longitudinal section through a device according to the invention in a further embodiment,

[0175] In the following, identical reference numerals designate elements or features with identical or similar technical properties. Not all figures necessarily depict all elements of the device 1 according to the invention.

[0176] Fig. 1 shows a perspective view of a device 1 according to the invention from a side facing away from the door. The device 1, which can also be referred to as a smart lock, is essentially cylindrical. The device 1 has a lateral surface 2 as well as a front side 3 facing the door and a front side 4 facing away from the door. The device 1 is fastened with the front side 3 facing the door to a door (not shown) or to a locking cylinder (also not shown) of the door, either directly or via a door fastening element, designed in particular as a fastening plate 5, which can also be referred to as a door fastening device (see, for example, Fig. 17). Of course, it is also conceivable to fasten the device 1 to the door in another way or to integrate it into the door. The device 1 comprises a carrier body

[0177] 6 (see Fig. 3) and a rotating body 7. The device 1 also comprises a cover element 13 of the carrier body 6, which has a connecting section 18 (Fig. 3) of the carrier body

[0178] 7 with the door or the door fastening element. An outer surface of the cover element 13 forms part of the outer surface 2 of the device 1. On the end face 3 facing away from the door, the device 1 has a haptic actuating element designed as a push button 8, which is arranged in a central region of the end face 3 facing away from the door. An outer surface of this push button 8 can be a concave, i.e. inwardly curved, surface. Also shown in Fig. 1 is an optical output element 10, which comprises or is formed by a light output element 11 with an annular section. This output element 10 is arranged on the side 3 of the device 1 facing away from the door. The push button 8 is arranged in a recess bordered by the annular section of the light output element 11. The output element 10 serves to emit an optical signal.As explained in more detail below, the optical signal can be output in the entire output element or only in one or more subsections of the output element 10.

[0179] A part of the outer surface 2 of the device 1, which is formed by the rotating body 7, forms a manual actuation element 12 of the device 1. A user can rotate the rotating body 7 by actuating this part of the outer surface 2 and thus - as explained in more detail below - perform a manual locking movement. However, as explained in more detail below, the rotating body 7 can also be rotated by operating a drive device (not shown in Fig. 1) of the device 1, in particular when an actuator-supported locking movement is carried out. Also shown in Fig. 1 is a locking element 9, which can in particular be designed as a locking button, for mechanically connecting the carrier body 6 to the door or a door fastening element. The function of this locking element 9 is explained in more detail with reference to Fig. 17. Also shown is a longitudinal axis L of the device 1. This can correspond to a rotation axis of the rotating body 7.However, it is not mandatory that the rotational axis of this longitudinal axis L correspond to the device 1; the axes can also be offset from one another. An arrow symbolizes an orientation of the longitudinal axis L, which is oriented from the end face 3 facing the door to the end face 4 facing away from the door. A main radiation direction of the output element 10 is parallel to the longitudinal axis and also oriented from the end face 3 facing the door to the end face 4 facing away from the door.

[0180] If reference is made below to a side facing the door, this refers to a side facing the end face 3 of the device 1 facing the door. A side facing away from the door refers to a side facing the end face 4 of the device 1 facing away from the door. An inner surface or radial inner surface can refer to a surface facing the longitudinal axis L and whose normal vector is oriented parallel to a radial direction. An outer surface or radial outer surface can refer to a surface facing away from the longitudinal axis L and whose normal vector is also oriented parallel to a radial direction. The radial direction is perpendicular to the longitudinal axis L and oriented away from it. The explained meanings apply unless expressly stated otherwise or unless otherwise indicated by the context.

[0181] The device 1 further comprises a connection element 46 for connecting an external energy source, e.g., via a charging plug. The connection element 46 has a pin-shaped first contact element 63 and a second annular disk-shaped contact element 64. The first contact element 63 serves to contact a positive potential of the energy source, while the second contact element 64 serves to contact a negative potential. Of course, reversed polarity / contacting is also conceivable. The contact elements 63, 64 are arranged on the casing surface 2 of the device 1, in particular in the region of the cover element 13, and can be contacted from the outside. The contact elements 63, 64 can extend through a (first) through-opening 109 in a casing section of the cover element 13. Alternatively or additionally, the contact elements 63, 64 can be contacted through the first through-opening 109.The first through-opening 109 is formed as a recess in the end face of the casing section facing away from the door. In other words, the first through-opening 109 is not completely surrounded by the casing section. The contact elements 63, 64 are electrically insulated from one another. The connection element 46 is designed as a magnetic connection element and can, for example, have at least one magnetic element (not shown) for magnetically fastening an external connection element, e.g., the charging plug, to the connection element 46. It is conceivable that the first and / or second contact elements 63, 64 are also designed to be magnetic.

[0182] It can also be seen that the locking element 9 extends through a further through-opening 110 in the casing section of the cover element 13 or is arranged in this.

[0183] However, it is of course also possible that the first and / or the further through-opening 109, 110 can be completely surrounded by the casing section and are thus not open towards the end side facing away from the door or towards the door.

[0184] Also shown is that the cover element 13 has a further through-opening 110, wherein the locking element 9 extends through or is arranged in this further through-opening 110. The first through-opening 109 is arranged on an end face of the cover element 13 facing away from the door. The further through-opening 110 is arranged on an end face of the cover element 13 facing the door. It is shown that the through-openings 109, 110 are formed as recesses on these end faces.

[0185] Fig. 2 shows a perspective view of the device 1 according to the invention shown in Fig. 1 from a side 3 facing the door. An internal volume 14 of the device 1 can be seen. Arranged in the internal volume 14 are, among other things, partial bodies of the rotating body 7, in particular a receiving body designed as a first hollow body 15, which can also be referred to as the inner body of the rotating body 7. This first hollow body 15 has a cover element 16 shown in Fig. 2, which closes an internal volume 17 (see Fig. 3) of the first hollow body 15. This internal volume 17 of the first hollow body 15 serves to accommodate at least one battery 27 (see Fig. 3) for supplying energy to a drive device of the device 1 and thus forms a battery compartment of the device 1. The cover element 16 is detachably connected to a casing section of the first hollow body 15, in particular via a snap-in connection.This can be achieved using interacting locking elements. When the cover element 16 is fastened to the casing section, it forms a ceiling section of the first hollow body 15. It can also be seen that the cover element 16 has a recess 38 on an upper side facing the door, which recess serves to receive a locking cylinder actuating element, in particular a locking cylinder pin. The locking cylinder actuating element can be arranged in this recess, wherein it is connected to the cover element 16 in a rotationally fixed manner, e.g. in a form-fitting manner. The recess thus forms a section 38 for receiving a.

[0186] Lock cylinder actuating element. Fig. 2 shows that the recess is slot-shaped.

[0187] Likewise visible are various components or sections of the carrier body 6. Fig. 2 shows a carrier fastening element 21 which is mechanically rigidly connected to a connecting section 18 (see Fig. 3). This connecting section 18 of the carrier body 6 is arranged between a radial outer wall of the first hollow body 15 and a radial inner wall of an actuating body of the rotating body 7, designed as a further hollow body 19, and serves to mechanically connect the carrier body 6 to the door or a door fastening element. The further hollow body 19 forms a further partial body of the rotating body 7. This carrier fastening element 21, which is essentially ring-shaped or hollow-cylindrical, has locking elements for mechanically connecting to the connecting section 18 (see Fig. 3). The locking elements of the carrier fastening element 21 can be designed as locking recesses 22 (see Fig.3) into which locking lugs 23 of the connecting section 18 can engage to establish the mechanical connection. The locking recesses 22 can be formed on a radial outer side (i.e., on an outer surface of the casing) of the support fastening element 21. Furthermore, the support fastening element 21 has bayonet recesses 45 on an inner surface of the casing for guiding an assembly movement, which serve to receive and guide the movement of guide elements of the door or a door fastening element, in particular a fastening plate 5 (see Fig. 17). The function of the bayonet recesses 45 in interaction with guide elements of a fastening plate 5 is explained below. However, such guide elements can also be arranged or formed on the door or a lock. The bayonet recesses 45 and the guide elements of the fastening plate 5, designed as guide webs 24 (see Fig.17) form elements of a bayonet lock for mechanically connecting the carrier body 6 to the fastening plate 5. In the illustrated embodiment, the carrier fastening element 21 has three bayonet recesses 45 along the inner surface of the casing, wherein the bayonet recesses 45 are arranged unevenly along the inner surface of the casing. In particular, an angular distance between a first and a second recess 45 can be different from an angular distance between the second and a third recess 45 and / or different from an angular distance between the third and the first recess 45. This can ensure that the carrier body 6 can only be fastened to the fastening plate 5 with a predetermined orientation relative to the latter. The recesses 45 are thus arranged and / or designed in such a way that a Poka Yoke principle is provided with regard to the mounting on the fastening plate 5.Also visible are manufacturing-related grooves in the inner surface of the casing. The bayonet recesses 45, in particular, allow the carrier body 6 to be plugged onto the mounting plate 5, with the guide webs 24 being inserted into the bayonet recesses 45. During this plugging process, a locking cylinder pin or a key can also be inserted into the receiving section 38.

[0188] By performing a rotational movement (assembly movement) of the carrier body 6, the carrier body 6 and the fastening plate 5 can then be connected to one another. The bayonet recesses 45 simultaneously form stop elements for this assembly movement. Thus, the carrier body 6 can only be rotated relative to the fastening plate 5 up to a predetermined angular position. Once this angular position is reached, a desired orientation is set between the carrier body 6 and the fastening plate 5, and thus also between the carrier body 6 and a locking cylinder. The state in which this desired orientation is set can also be referred to as the assembled state of the carrier body 6. In this state, the carrier body 6 is fixedly attached to the locking cylinder or to the door via the fastening plate 5.

[0189] Also shown is a notch 65 in the carrier fastening element 21, which forms an optically detectable marking for a user and makes it possible to align the device 1 relative to the fastening plate 5 for carrying out the assembly movement in such a way that the guide webs 24 can be plugged on and inserted into the bayonet recesses 45. The fastening plate 5 thus has a corresponding notch 66. If a user positions the device 1 relative to the fastening plate 5 before plugging on in such a way that the notches 65, 66 are aligned or overlap in a common projection plane, which can be oriented perpendicular to the explained longitudinal axis L, the plugging on and insertion of the guide webs 24 into the bayonet recesses 45 is made possible.

[0190] Not shown in Figures 1 and 2 is that the carrier body 6 can have at least one hollow section and a base section 25, wherein a section of the rotating body 7 extends through a through-opening 31 in the base section 25 of the carrier body 6 (see Fig. 3). Also not shown is a light source of the device 1 and a light-guiding element 37 (see Fig. 13) of the device 1, which can be arranged in an internal volume of the device 1, in particular of the manual actuation section or manual actuation element 12. Also not shown is a drive device of the device 1 for driving the rotating body 7, which can be arranged in an internal volume of the device 1, in particular of the manual actuation section or manual actuation element 12. Such a drive device is designed in particular as an external rotor motor.

[0191] Fig. 3 shows a longitudinal section through a device 1 according to the invention. Shown is the carrier body 6, which has a connecting section 18, a base section 25, a support section 20 and a cover element 13. The connecting section 18 is hollow cylindrical and has a first outer diameter. The connecting section 18 can also be referred to as a hollow section. The connecting section 18 is open towards an end face facing the door and towards a side facing away from the door. The base section 25 is arranged in the inner volume of the connecting section 18. The base section 25 divides the inner volume of the connecting section 18 into two sub-volumes. The first hollow body 15 of the rotating body 7 is arranged in a first sub-volume facing the door. At least part of the support section 20 of the carrier body 6 is arranged in a second sub-volume facing away from the door. Shown are the sections described with reference to Fig.2 already explained locking lugs 23 and locking recesses 22 for fastening the connecting section 18 to the carrier fastening element 21. It can be seen that the carrier fastening element 21, in addition to the locking recesses 22, also has locking lugs that engage in locking openings in the casing section of the connecting section 18. The locking lugs of the carrier fastening element 21 can be formed by sections that delimit the locking recesses 22. Also shown is a fastening plate 5 (see also Fig. 17), wherein the carrier fastening element 21 is mounted on the fastening plate 5.

[0192] Conductor tracks 26a, 26b, 26c, 26d (see Fig. 4) are arranged in a surface of the floor section 25 facing the door, which serve to transmit voltage potentials from batteries 27 to a drive device.

[0193] The support section 20 is also hollow-cylindrical and protrudes from a surface of the base section 25 facing away from the door in the direction away from the door. The support section 20 comprises a first subsection 20a and a further subsection 20b. In the direction away from the door, i.e., along the longitudinal axis L, the first subsection 20a merges into the further subsection 20b. Both an outer and an inner diameter of the first subsection 20a are larger than the corresponding diameters of the further subsection 20b. An outer diameter of the subsections 20a, 20b is each smaller than the outer diameter of the connecting section 18. In the support section 20, in particular in the further subsection 20b, a stator 28 (see Fig. 6) of the drive device can be fastened to the carrier body 6. This drive device can comprise the stator 28 and a rotor 54 and can be designed as an external rotor motor.As explained in more detail below, the stator can.

[0194] 28, in particular, be attached to or rest against an outer surface of the support section 20. Thus, the drive device can be arranged at least partially in the explained second partial volume of the connecting section 18.

[0195] Likewise, a printed circuit board 29 can be fastened in the support section 20 to the carrier body 6 and / or to the stator 28, e.g., via a soldering and / or adhesive connection. It is conceivable, for example, that an assembly comprising the printed circuit board 29 and the printed circuit board

[0196] 29 and then fastened to the support section 20. A through-opening formed by the support section 20 is aligned with the through-opening 31 in the base section 25.

[0197] Also shown is a rotating body 7 which, as already explained above, has a first hollow body 15 (inner body) and a further hollow body 19 (outer body), wherein the first hollow body 15 can be referred to as the receiving body and the further hollow body 19 can also be referred to as the actuating body. The hollow bodies 15, 19 are designed as separate components and are mechanically connected. The mechanical connection is made in particular via a screw 30. The connecting section of the hollow bodies 15, 19 extends through a through-opening 31 in the carrier body 6, in particular the through-opening formed by the support section 20 and a through-opening 31 in the base section 25. It also extends through the through-opening formed by the support section 20.

[0198] Also shown is a threaded portion 98 of the first hollow body 15, which protrudes from a central region of a top side of a base portion 33 of the first hollow body 15 facing away from the door and extends through the through-opening 31 of the base portion 25 into the interior volume of the support portion 20. The threaded portion 98 has a thread accessible from the side facing away from the door, into which the screw 30 can be screwed. The rotating body 7 is rotatably mounted on the support body 6, in particular on an inner surface of the first partial portion 20a of the support portion 20, via a ball bearing 32.

[0199] The first hollow body 15 serves to accommodate at least one battery 27, in particular a battery stack formed from several batteries 27, wherein these batteries 27 are thus rotatably mounted on the carrier body 6. The at least one battery 27 is arranged in an internal volume 17 of the first hollow body 15. This internal volume 17 thus forms the battery compartment. In the illustrated embodiment, the rotating body 7 comprises a cover element 16, which is fastened to a casing section of the first hollow body 15. The first hollow body 15 further has the base section 33. Contact springs (see Fig.5) designed contact elements 85a, 85d for establishing electrical contact between the battery poles and the conductor tracks 26a, 26b as well as contact elements also designed as contact springs for electrically contacting conductor track segments 26c, 26d are arranged, which enable the position of the rotating body 7 to be determined. This will be explained in more detail below. Also shown are fixing elements designed as rubber mats 99, between which the battery stack is pressed and thus clamped in the interior volume 17 when the cover element 16 is fastened. Also shown is the section 38 designed as a recess in the cover element 16 for receiving a locking cylinder actuating element. Fig. 3 shows two rubber mats 99, a first rubber mat 99 being arranged on the side of the interior volume 17 facing the door and a second rubber mat 99 being arranged on a side of the interior volume 17 facing away from the door.Of course, embodiments with only one rubber mat 99 are also conceivable, which can be arranged either on the side of the interior volume 17 facing away from the door or the side facing the door. A rubber mat 99 can have through-openings, e.g., for energy transmission means.

[0200] The first hollow body 15 is arranged, at least in sections, within an internal volume 34 of the further hollow body 19. The shell sections of the hollow bodies 15, 19 are arranged parallel and at a predetermined radial distance from one another, wherein—as already explained above—the connecting section 18 of the support body 6 extends, at least in sections, between an outer wall of the shell section of the first hollow body 15 and an inner wall of the shell section of the further hollow body 19. A section of the further hollow body 19, in particular an outer wall of the shell section, forms a manual actuation surface for a user. Thus, the further hollow body 19 forms a manual actuation element 12, which was already explained above. An outer radius of the further hollow body 19 is equal to an outer radius of the cover element 13.The interior volume 34 enclosed by the further hollow body 19 is open on an end face facing the door, i.e., unlocked. On an end face facing away from the door, the further hollow body 19 has a base section 35. This base section 19, in turn, has an actuating element designed as a push button 8, which forms a central section of the base section 35 and can be actuated from the outside by a user, in particular, can be pressed toward the door. Pressing the push button 8 can serve to generate a control signal.

[0201] The rotating body 7 further comprises a light emitting element 11, which has the annular section already explained with reference to Fig. 1. The light emitting element 11 is connected to a surface of the base section 35 of the further hollow body 19 facing the door, in particular glued thereto. The annular section of the light emitting element 11 extends through the base section 35 and thus forms an optical output element 10. The light emitting element 11 is part of a coupling hollow body 101. This is designed as a hollow body open towards the side facing the door, wherein the coupling hollow body 101 has or forms a further coupling ring 78 on an end face facing the door. On an end face facing away from the door, the coupling hollow body 101 has a base section, wherein the light emitting element 11 forms this base section or a part thereof.

[0202] The device 1, in particular the rotating body 7, comprises a fastening sleeve 102 that protrudes from the coupling hollow body 101 in a central region of the door-facing surface of the base portion of the coupling hollow body 101. The fastening sleeve 102 and the coupling hollow body 101 can be formed as separate components or as a single piece. An outer diameter of the fastening sleeve 102 tapers toward the door-facing end face 3 of the device 1. An inner volume of the fastening sleeve 102 serves to accommodate the screw 30. It is shown that the fastening sleeve 102 has radially inwardly projecting stop webs 103 for a screw head in the inner volume, wherein the screw head can be arranged in a part of the inner volume of the fastening sleeve 102 facing away from the door. The threaded portion 98 of the first hollow body 15 can be arranged in a part of the inner volume facing the door. The partial volumes can be separated by the stop webs 103.The fastening sleeve 102 can further comprise locking elements for the mechanical connection of the push button 8, which can be inserted into the interior volume from the side facing away from the door and can be mechanically and, in particular, rotationally fixedly secured to the fastening sleeve 102 by means of a locking connection. For this purpose, the push button 8 can comprise at least one corresponding locking element. In the attached state, the push button 8 covers the interior volume of the fastening sleeve 102, in particular with a screw 30 arranged therein.

[0203] The first hollow body 15 and the further hollow body 19 can be screwed together using the screw 30. The screw 30 is inserted into the interior volume of the fastening sleeve 102 from the side facing away from the door and then screwed into the thread of the threaded section 98. The first hollow body 15 extends, in particular with the threaded section 98, through the through-opening 31 and into the through-opening formed by the support section 20. A part of the fastening sleeve 102 also extends into the through-opening formed by the support section 20 in the direction of the through-opening 31.

[0204] When the device 1 is manually actuated, a user can generate a rotary movement of the manual actuation element 12 and thus of the further hollow body 19 by applying a torque. Due to the mechanical connection to the first hollow body 15, this also rotates, and thus also a locking cylinder actuation element arranged in a rotationally fixed manner in section 38. The rotating body 7 thus executes a manually generated locking movement. Depending on the direction of rotation, a door lock can thus be set to an open or closed state.

[0205] During automatic or actuator-assisted actuation of the device 1, a drive device can generate a torque. This torque is transmitted to the rotating body 7, in particular the further hollow body 19, via a gear mechanism (explained in more detail below) and a clutch (also explained in more detail below), generating a corresponding rotational movement, i.e., an actuator-assisted locking movement. Analogous to manual actuation, this can rotate a locking cylinder actuating element arranged in a rotationally fixed manner in section 38.

[0206] Fig. 3 also shows the connection element 46. Contact elements 63, 64 of the connection element 46 are arranged on a connection circuit board 67. This is arranged on the carrier body 6, in particular in a section of the connecting section 18. Fig. 3 shows that the connection circuit board 67 is fastened to an inner surface of the connecting section 18, in particular glued thereto. The connection circuit board 67 can have conductor tracks that contact the contact elements 63, 64. The connecting section 18 has a through-opening 68 through which the contact elements 63, 64 arranged on the connection circuit board 67 extend.

[0207] Fig. 4 shows a perspective view of a carrier body 6 of a device 1 according to the invention from a side facing the door, wherein in particular the conductor tracks 26a,..., 26d arranged in a carrier body 6, in particular a base section 25 of the carrier body 6, and designed as slip rings or slip ring segments are shown. These are accessible from a side of the base section 25 facing the door. Thus, they can be electrically contacted by contact elements 85a, 85d (see Fig. 5) of the rotating body 7.

[0208] The device 1 comprises, in particular, two complete slip rings 26a, 26b, i.e., not divided into segments arranged electrically insulated from one another. A first complete slip ring 26a serves to transmit a negative potential, which is applied to a negative pole of a battery 27 or a battery stack. The further complete slip ring 26b serves to transmit a positive potential, which is applied to a positive pole of the battery 27 or the battery stack. The electrical connection of the poles to these slip rings 26a, 26b is established via the contact elements 85a, 85b explained above. The complete slip rings 26a, 26b can be electrically connected to terminals on a printed circuit board 29 (see Fig. 13) via further conductor tracks 69. These conductor tracks 69 can be embedded in a material of the carrier body 6 and led from the slip rings 26a, 26b to the printed circuit board 29.It is shown that a diameter of the first slip ring 26a is smaller than a diameter of the second slip ring 26b, and the first slip ring 26a is arranged within the second slip ring 26b. It is possible for the second contact element 64 of the connection element 46 to be electrically connected to the first complete slip ring 26a via a conductor track, which can be arranged in particular in / on the connection circuit board 67. However, the first contact element 63 of the connection element 46 can be connected directly to a connection element of the circuit board 29 via a conductor track and not be routed via a slip ring 26a, 26b.

[0209] Also shown are nine segments of an incomplete third slip ring 26c and nine segments of an incomplete fourth slip ring 26d. Each of these incomplete slip rings 26c, 26d comprises the nine segments shown. For the sake of clarity, only one segment per slip ring 26c, 26d is provided with a reference symbol. Of course, more or fewer than the nine segments shown may be present. The segments are arranged along a circular path and separated from one another by insulating sections arranged between the segments along this circular path.

[0210] A diameter of the second slip ring 26b is smaller than a diameter of the third slip ring 26c and a diameter of the third slip ring 26c is smaller than a diameter of the fourth slip ring 26d. The third slip ring 26c is arranged within the fourth slip ring 26d and the second slip ring 26b is arranged within the third slip ring 26c. A potential of these slip rings 26c, 26d can also be guided via conductor tracks 69 to connection elements on the circuit board 29 (see Fig. 2). The segments of the third and fourth slip rings 26c, 26d are arranged equiangularly, i.e. with equal angular distances, along a circular path. The segments of the two slip rings 26c, 26d are, however, arranged at an angular offset from one another, in particular with an angular offset of half a segment length. A radial line along which a segment, in particular a segment start or-end, of the third slip ring 26c, is arranged with an angular offset from a radial line directly adjacent along the circumferential direction, along which a segment, in particular a segment start or end, of the fourth slip ring 26d is arranged. This angular offset can be in a range from 0° (exclusive) to 20° (inclusive) with respect to a mathematically positive direction of rotation about a longitudinal axis of the carrier body 6 and can preferably be 10° if this longitudinal axis is oriented from the side facing the door to the side of the carrier body 7 facing away from the door.

[0211] The segments can be contacted by corresponding contact elements 85c, 85d (see Fig. 5) of the rotating body 7, whereby various contact states can occur. In particular, segments of both slip rings 26c, 26d can be contacted by contact elements 85c, 85d (first contact state). One segment(s) of the third slip ring 26c, but no segment of the fourth slip ring 26d, can be contacted by contact element(s) 85c (second contact state). One segment(s) of the fourth slip ring 26d, but no segment of the third slip ring 26c, can be contacted by contact element(s) 85d (third contact state). No segment of the third slip ring 26c and no segment of the fourth slip ring 26d can be contacted by contact elements 85c, 85d (fourth contact state).During a rotational movement of the rotating body 7, these states can change over time, whereby this change of state can also be dependent on the direction of rotation. The contact states can be determined by evaluating electrical signals, in particular a potential. For example, a potential of a segment contacted by contact elements 85c, 85d can be different from a potential of a segment not contacted by contact elements 85c, 85d. By determining the contact states, in particular the temporal sequence of the different contact states that arise during a rotational movement, a direction of rotation and an angle of rotation of the rotational movement can be identified. This in turn enables the determination of a current angular position of the rotating body 7, starting from a zero angle position determined, for example, during a calibration or reference run, which in turn can be used for movement control, e.g.if an angular position to be set for setting the closed state of the lock or an angular position of the rotary body 7 to be set for setting the open state of the lock is to be set, in particular actuator-supported.

[0212] Fig. 5 shows a perspective view of a first hollow body 15 of a rotating body 7 of a device 1 according to the invention from a side facing away from the door. Shown is a surface of a base section 33 of the first hollow body 15 facing away from the door. The first hollow body 15 has contact elements 85a, 85d designed as contact springs, in particular as spring tongues. Contact elements 85a of a first set of three contact elements (first contact elements 85a) serve to contact the first complete slip ring 26a shown in Fig. 4. Contact elements 85b of a second set of three contact elements (second contact elements 85) serve to contact the second complete slip ring 26b shown in Fig. 4. Contact elements 85c of a third set of three contact elements (third contact elements 85c) serve to contact the segments of the third incomplete slip ring 26c shown in Fig. 4.Contact elements 85d of a fourth set of three contact elements (fourth contact elements 85d) serve to contact the segments of the fourth incomplete slip ring 26d shown in Fig. 4. The contact elements 85a, ..., 85d are each arranged along a circular path with a predetermined angular offset between contact elements 85a, 85d adjacent along the circular path, in particular with an angular offset of 120°. Of course, more or fewer than the three contact elements 85a, 85d shown can be present per set. The angular offset can - as previously explained - depend on the number of segments present and the number of contact elements 85a, 85d present. The radii of the circular paths differ from one another, with the radius of a first circular path, along which the first contact elements 85a are arranged, being smaller than the radius of a second circular path, along which the second contact elements 85b are arranged.The radius of the second circular path, in turn, is smaller than the radius of a third circular path along which the third contact elements 85c are arranged. The radius of this third circular path is in turn smaller than the radius of a fourth circular path along which the fourth contact elements 85c are arranged. Each of the first contact springs 85a is arranged with a third contact spring 85c along a common radial line with respect to a longitudinal axis of the rotating body 7. Likewise, each of the second contact springs 85b is arranged with one of the fourth contact springs 85d along a common radial line. However, the radial lines along which a pair of second and fourth contact springs 85b, 85d are arranged are arranged at an angular offset from a radial line immediately adjacent in the circumferential direction, along which a pair of first and third contact springs 85a, 85c are arranged.This angular offset can be 360° divided by the number of segments, i.e. 40° in the illustrated embodiment, with respect to a mathematically positive direction of rotation about the longitudinal axis of the first hollow body 15, if this longitudinal axis is oriented from the side facing the door to the side of the first hollow body 15 facing away from the door.

[0213] Fig. 6 shows a cross-section through a device 1 according to the invention in the region of a support section 20 of a carrier body 6. A stator 28 of a drive device with 12 stator windings 52 is fastened to an outer surface of the support section 20, in particular a further partial section 20b of the support section 20. The stator windings 52 are wound around pole shoes 53 of the stator 28, which protrude in the radial direction from a central section 74 of the stator 28, wherein the pole shoes 53 are arranged with equal angular spacings between adjacent pole shoes 53 along a circular line. The central section 74 has a through-opening through which the support section 20 and the rotating body 7 extend. For the sake of clarity, only one stator winding 52 and one pole shoe 53 are provided with a reference numeral.

[0214] Also shown is a rotor 54 of the drive device with permanent magnets 55. The drive device is designed as an external rotor motor, in particular as a brushless external rotor motor, wherein the stator 28 is arranged in an internal volume enclosed by the rotor 54, which is designed as a hollow ring or hollow cylinder. The permanent magnets 55 are arranged on an inner surface of the rotor 54 facing the pole pieces 53. The permanent magnets 55 have alternating polarities along the circumferential direction of the rotor 54. For the sake of clarity, only one permanent magnet 55 is provided with a reference symbol.

[0215] The rotor 54 forms a sun gear of a planetary gear system and, for this purpose, has teeth 57 on an outer surface of the casing which mesh with gears 58 of a first stage of the gear system. In other words, the rotor 54 is designed as an externally toothed gear rim or ring. The gears 58 of this first stage are each connected in a rotationally fixed manner to a gear 59 of a second stage (see, for example, Fig. 7), with a gear pair consisting of connected gears 58, 59 being rotatably mounted on a planetary gear carrier 60. The gears 58, 59 of a gear pair are designed as helical gears, with a helix angle of the gear 59 of the second stage being inverted with respect to a helix angle of the gear 58 of the first stage. Furthermore, the number of teeth of the gear 58 of the first stage is greater than the number of teeth of the gear 59 of the second stage. A gear pair can in particular be designed as an integral component or in one piece.The gears 58 of the first stage additionally mesh with a hollow ring 75 designed as an internally toothed gear ring. This hollow ring 75 is mechanically connected in a rotationally fixed manner to the carrier body 6, in particular to an inner surface of a hollow-cylindrical section 95 of the connecting section 18, which projects beyond the base section 25 of the carrier body 6 in the direction away from the door and delimits the previously explained second, door-facing partial volume. This is particularly evident in Fig. 8. Thus, the gears 58 of the first stage are arranged between the hollow ring 75 and the rotor 54.

[0216] Fig. 7 shows a further cross-section through a device 1 according to the invention in the region of the support section 20 of the carrier body 6, which, with respect to the cross-section shown in Fig. 6, is offset along the longitudinal axis L of the device 1 toward the end face 4 facing away from the door. Fig. 7 shows that the gears 59 of the second stage mesh with a link ring 62 designed as an internally toothed gear ring, which is part of a coupling of the device 1. This link ring 62 is rotatably mounted relative to the carrier body 6.

[0217] Fig. 8 shows a detailed section through the device 1 according to the invention in the region of the support section 20 of the carrier body 6. It can be seen that a shaft 61 is rotatably mounted in / on the planetary gear carrier 60, with the gears 58, 59 of a gear pair being non-rotatably attached to the shaft 61. The planetary gear carrier 60 is designed as a hollow ring and is rotatably arranged in the inner volume 34 of the further hollow body of the rotating body 19.

[0218] A rotational axis and central axis of the shaft 61 is oriented parallel to the rotational axis of the rotating body 7. The gears 58 of the first stage are arranged at an end of the shaft 61 facing the door, and the gears 59 of the second stage are arranged at an end of the shaft 61 facing away from the door. It can also be seen that a door-facing end section of the rotor 54 is rotatably mounted via a ball bearing 56 on the carrier body 6, in particular on an outer surface of a first partial section 20a of the support section 20 of the carrier body 6.

[0219] It can also be seen that the link ring 62 is rotatably mounted on the hollow ring 75 via a ball bearing 51, the ball bearing 51 being arranged between mutually facing outer surfaces of the rings 62, 75. The link ring 62 is arranged behind the hollow ring 75 along the longitudinal axis L of the device 1 in a direction oriented from the side 3 facing the door to the end face 4 facing away from the door. The device 1 further comprises a first coupling ring 77 and a further coupling ring 78, which can be part of a hollow coupling body 101. This first coupling ring 77 is designed as a laterally toothed gear ring, with teeth being arranged on a side surface of the coupling ring 77 facing away from the door. The further coupling ring 78 is also designed as a laterally toothed gear ring, with teeth being arranged on a side surface of the coupling ring 77 facing away from the door. In a coupled state, the teeth of the two clutch rings 77, 78 mesh.In a disengaged state, the teeth of the first coupling ring 77 do not engage the teeth of the other coupling ring 78, and the two coupling rings 77, 78 do not mesh with each other. The teeth are formed by beveled side surfaces of the coupling rings 77, 78. The first coupling ring 77 is rotatably mounted on the link ring 62. In addition, the first coupling ring 77 is mounted on the link ring 62 for linear movement. A movement axis of this linear movement is oriented parallel to the longitudinal axis L of the device 1.

[0220] Also visible are the previously explained optical output element 10 and light output element 11. The optical output element 10 has a hollow cylindrical section 111 or is formed as such a section 111 of the light output element 11. The push button 8 is arranged in an interior volume enclosed by the hollow cylindrical section 111. The hollow cylindrical section 111 has an end face 113 facing away from the door, which forms an output section for optical radiation. Thus, the end face of the device 1 facing away from the door comprises an end face of the manual actuation section, the end face of a cylinder wall of the hollow cylindrical section 111 facing away from the door, and a surface of the push button 8 facing away from the door.

[0221] Also visible is a light source 112, which is designed as an LED and arranged on the circuit board 29. Also shown are a light-guiding element 37, 87b and a support element 86, which will be explained in more detail with reference to Fig. 14. In the arrangement shown, radiation generated by the light source 112 can be radiated into the light-guiding element 37, 87b and guided from there to the light-emitting element 11 with the optical output element 10. The light-guiding element 37, 87b is curved. An air gap is arranged between an irradiation section for radiating radiation from the light source 112 into the light-guiding element 37, 87b. Such an air gap is also arranged between an irradiation section for the emission of radiation from the light-guiding element 37, 87b to the optical output element 10 and this optical output element 10. In Fig.Figure 8 shows that the radiation direction of the light source 112 is oriented perpendicular to the longitudinal axis L of the device 1, i.e., radially outward. Due to the curved design of the light-guiding elements 87a, 87b (see also Figure 13), the radiation can be redirected such that it can then be emitted by the optical output element 10 along the explained main radiation direction. This makes it possible to arrange the light source 112 below the push button 8. If the radiation direction of the light source 112 were oriented in the direction of the longitudinal axis L and no light-guiding element 37, 87a, 87b were present, either the light source would have to be displaced radially outward or the optical output element 10 would have to be displaced radially inward. In both cases, design problems would arise: in the first case with respect to other components arranged on the circuit board 29, and in the second case with respect to the push button 8.

[0222] Fig. 9 shows a perspective view of a link ring 62 from a side facing away from the door. Fig. 10 shows a perspective view of a first coupling ring 77 from a side facing away from the door. The first coupling ring 77 has coupling webs 79 projecting radially inward on an inner surface of the casing. On a side surface facing the door, the first coupling ring 77 has coupling lugs 80 projecting from this side surface in a direction facing the door.

[0223] An outer surface 105 of this first coupling ring 77 has a stepped design. As a result, a radius of a first section 105a of this outer surface 105 facing away from the door is smaller than a radius of a first section 105b of this outer surface 105 facing the door. The stepped design forms a contact surface 106 for the wave spring 84 shown, for example, in Fig. 12. Also visible are guide lugs 107 for clamping and locking a wave spring 84 on the first coupling ring 77. These guide lugs 107 project radially outward from the first section 105a and are arranged at a distance from the contact surface 106, wherein a section of the wave spring 84 can be clamped between the contact surface 106 and the guide lugs 107. The first coupling ring 77 also has a web 108 which projects from the contact surface 106 and also projects radially outward from the first section 105a.This web 108 also serves to lock the wave spring 84, which is slotted. The wave spring 84 is then arranged on the first coupling ring 77 such that the web 108 is arranged in the slot of the wave spring 84.

[0224] A side surface of the link ring 62 facing away from the door has recessed sections 81 and

[0225] Coupling sections 82, wherein a width of the link ring 62 in the region of the recessed sections 81 is smaller than in the region of the coupling sections 82, wherein the width is measured along a central axis of the link ring 62. A recessed section 81 is arranged between each two coupling sections 82 adjacent along a circumferential direction. The link ring 62 also has transition sections 83, which are arranged along the circumferential direction between each coupling section 82 and a recessed section 81, as well as between this recessed section 81 and the next coupling section 82. In these transition sections 82, the width of the link ring 62 decreases or increases. For the sake of clarity, only two transition sections 83 are provided with a reference symbol.

[0226] If the rotor 54 is set in rotation, the sun gear of the transmission rotates and meshes with the gears 58 of the first stage. The planetary carrier 60 performs a circular movement along the inner surface of the hollow ring 75. The rotation of the gears 58 of the first stage leads to a rotation of the gears 59 of the second stage, which mesh with the link ring 62. This generates a rotation of the link ring 62. During this rotation, the recessed sections 81, the coupling sections 82, and the transition sections 83 move relative to the coupling webs 79, with a coupling web 79 being arranged between two coupling sections 82 adjacent along the circumferential direction.During this rotary movement, on the one hand, a rotary movement of the link ring 62 is transmitted to the first coupling ring 77 and, on the other hand, the first coupling ring 77 is displaced towards the further coupling ring 78, so that an engaged state is created. The coupling webs 79 contact the side surface of the link ring 62 facing away from the door, even in the region of the recessed sections 81, so that even with such contact, a rotary movement can be transmitted from the link ring 62 to the first coupling ring 77. However, as explained in more detail below, the first coupling ring 77 is in a disengaged state with respect to the further coupling ring 78 when the coupling webs 77 contact the side surface in the region of the recessed sections 81. Such a rotary movement of the first coupling ring 77 in the disengaged state is limited by the coupling lugs.80, which, during the rotational movement, strike corresponding coupling lugs 36 (see Fig. 3) that protrude from an end face of the connecting section 18 of the carrier body 6 facing away from the door. This blocks the rotational movement of the coupling ring 77, although the link ring 62 can continue to rotate and thus the coupling webs 77 are moved along the side surface of the link ring 62 into the region of a transition section 83. As a result, the first coupling ring 77 is displaced towards the further coupling ring 78, which simultaneously also removes the stop state between the coupling lugs 80, 36 and enables the rotational movement of the first coupling ring 77 again. In the engaged state, the rotational movement of the first coupling ring 77 is then transferred to the further coupling ring 78 and thus to the hollow coupling body 101. This is mechanically connected in a rotationally fixed manner to the further hollow body 19 of the rotating body 7.forms part of this rotating body 7, so that it too is set in a rotary motion and thus an actuator-supported locking movement can be carried out. For disengagement, the drive device is operated such that the link ring 62 is rotated by a predetermined angle counter to the direction of rotation of the immediately preceding rotary motion. Due to the resulting relative rotation between the link ring 62 and the first coupling ring 77, the coupling webs 77 are moved from the areas of the transition sections 82 into the areas of the recessed sections 81, whereby a disengagement movement of the first coupling ring 77 away from the further coupling ring 78 is released, so that a disengaged state is established. To establish the disengaged state, the device 1 comprises a wave spring 84 (see Fig.12), which is arranged between the coupling rings 77, 78 and which presses the first coupling ring 77 away from the further coupling ring 78.

[0227] Fig. 11 shows a perspective view of a further coupling ring 78 and a coupling hollow body 101 from a side facing the door, wherein the further coupling ring 78 is a component of the coupling hollow body 101. The toothed section arranged on a side surface of the coupling ring 78 facing the door is visible. On an outer surface of the casing, the coupling hollow body 101 has radially projecting webs 96. These serve for the rotationally fixed attachment of the further hollow body 19 of the rotating body 7 to the coupling hollow body 101. In particular, the coupling hollow body 101 can be inserted into the further hollow body 19, wherein the webs 96 are arranged in corresponding recesses in the inner casing surface. This then creates a rotationally fixed connection. A bottom section of the coupling hollow body 101 forms the light emitting element 11 (see Fig. 3). Also shown is the fastening sleeve 102 already explained with reference to Fig. 3.The bottom section of the coupling hollow body.

[0228] 101 has through-openings 104 which are arranged around a foot section of the fastening sleeve

[0229] 102. In the assembled state, the actuating webs 90 extend through these through openings 104 (see Fig. 14).

[0230] Fig. 12 shows a detailed section of the device 1 in the area of ​​the coupling rings 77, 78.

[0231] Shown is the wave spring 84, which is arranged between the explained contact surface 106 and a door-facing end face of the further coupling ring 78. If the first coupling ring 77 is moved toward the further coupling ring 78 as previously explained to establish the engaged state, the wave spring 84 is clamped between the coupling rings 77, 78. To carry out this engagement movement, a spring force of the wave spring 84 must be overcome. In the clamped state, the wave spring 84 exerts a restoring force on the first coupling ring 77. However, this restoring force only generates a disengagement movement of the first coupling ring 77 away from the further coupling ring 78 when this disengagement movement is released, as also previously explained, in particular when the coupling webs 79 are located in recessed sections 81 of the side surface of the first coupling ring 77 facing away from the door.

[0232] In summary, a gear of the device comprises the rotor 54, the gear wheels 58, 59, the link ring 62 and the hollow ring 75. The link ring 62 is simultaneously part of a coupling of the device 1, wherein the coupling additionally comprises the first and the further coupling ring 77, 78 as well as the wave spring 84.

[0233] Fig. 13 shows a plan view of a surface of a circuit board 29 of the device 1 facing away from the door. Electronic or electrical components of the device 1, which are schematically illustrated in Fig. 13, can be arranged on or in the circuit board 29. One of these components can, in particular, be a control device of the device 1, which can be designed, for example, as a microcontroller or integrated circuit. Further components can form elements of a communication device of the device 1.

[0234] Arranged on the illustrated surface of the circuit board 29 is a ring- or disk-shaped support element 86, into which light-guiding elements 87a, 87b are embedded. Fig. 13 shows emission sections of these light-guiding elements 87a, 87b. The light-guiding elements 87a, 87b can be sub-elements of a light-guiding element 37. A first light-guiding element 87a is partially ring-shaped and has a center angle from a range of 120° (exclusive) to 0° (exclusive). A further light-guiding element 87b is also partially ring-shaped, with the partially ring-shaped section having a center angle from a range of 240° (inclusive) to 360° (exclusive). The light-guiding elements 87a, 87b are optically separated from one another, in particular by a separating section, in particular by a material of the carrier element 86, so that no radiation is guided from the first into the further light-guiding element 87a, 87b and vice versa.Preferably, the first light-guiding element 87a has a center angle in a range of 89° to 80°, with a separating section having a center angle in a range of 1° to 10°, and the further light-guiding element 87b having a center angle equal to the difference between 360° and the sum of these two center angles. The center angles can be determined for circular arc-shaped center lines of the light-guiding elements 87a, 87b and the separating section.

[0235] Light sources, in particular light sources designed as LEDs, can be arranged on the circuit board 29. The light sources (not shown in Fig. 13) can in particular be arranged relative to the light-guiding elements 87a, 87b in such a way that light emitted by the light sources is radiated into the light-guiding elements 87a, 87b. This light is then guided from an irradiation section of the light-guiding elements 87a, 87b to the respective light-emitting section. In this way, it can be achieved that the optical signal is only output in a partial section of the output element 10. For example, only the light source(s) that radiate into the first light-guiding element 87a can be controlled. This makes it possible to generate an almost quarter-circular optical output signal. Also, for example, only the light source(s) that radiate into the further light-guiding element 87b can be controlled.This allows an almost three-quarter circular optical output signal to be generated.

[0236] Furthermore, an optical output signal that is stationary for a viewer can be generated, even if the optical output element 10 rotates with the rotating body 7. This can mean that an ambient spatial region into which the radiation from the optical output element 10 is radiated during a rotational movement of the rotating body 7 is arranged stationary with respect to the carrier body 6. In this case, the device 1 can comprise at least one light source per light-guiding element 87a, 87b. Preferably, the device 1 comprises at least two light sources per light-guiding element 87a, 87b, each of which can radiate emitted light into the corresponding light-guiding element 87a, 87b. In this case, the number of light sources that radiate light into the first light-guiding element 87a can be greater than the number of light sources that radiate light into the further light-guiding element 87b.A material of the carrier element 86 is in particular opaque and preferably reflective, more preferably fully or highly reflective, for radiation emitted by the light sources. The center line of a cross-sectional area of ​​the light-guiding elements 87a, 87b in a cross-sectional area in which the longitudinal axis L of the device 1 is also arranged can have a curved profile. This enables reliable light guidance from the light sources of the circuit board 29 into the light-emitting element 11. Radiation emerging from the emission section of a light-guiding element 87a, 87b radiates into the light-emitting element 11 (see Fig. 1), which is made of light-transmitting material. It is further shown that the circuit board 29 is hollow-disk-shaped and has a central through-opening through which the support section 20 of the carrier body and the connecting section of the hollow bodies 15, 19 of the rotating body 7 extend.

[0237] Fig. 14 shows a detailed section through the device 1 in the area of ​​the printed circuit board 29. Shown are the light output element 11 with the optical output element and the push button 9. The support element 86 explained with reference to Fig. 13 is arranged on a surface of the printed circuit board 29 facing away from the door. An annular force transmission element 87 is arranged in an interior volume of the support element 86. This annular force transmission element 87 has switch actuation webs 88 on an outer surface of the casing, which protrude radially outward from the outer surface of the casing. These switch actuation webs 88 can actuate microswitches 89 arranged on or in the printed circuit board 29. On a surface of the push button 8 facing the door, the latter has actuation webs 90 which protrude from the surface towards the door.The actuating webs 90 contact a surface of the force transmission element 87 facing away from the door and slide along this surface when the push button 9 rotates. If the push button 9 is actuated and pressed towards the end face 3 of the device 1 facing the door, the actuating webs 90 press onto the force transmission element 87, which is then moved with the switch actuating webs 88 towards the end face 3 of the device 1 facing the door. As a result of this movement, the switch confirmation webs 88 actuate the microswitches 89 and a switching signal can thus be generated. This switching signal can be, for example, an input signal from a user, e.g. a signal to carry out an actuator-supported locking movement. The force transmission element 87 is spring-mounted on the circuit board 29. When the push button 9 is pressed to actuate the microswitches 89, a spring force must be overcome.If the user releases the push button 9, i.e., if it is no longer pressed, the spring force provided by the spring-loaded mounting causes the force transmission element 87 and, with it, the push button 9 to be moved toward the end face 4 facing away from the door, whereby the switch actuation webs 88 also no longer actuate the microswitches 89. Fig. 14 also shows that the force transmission element is arranged, at least in sections, in an internal volume encompassed by the at least one light-guiding element 37, 87a, 87b.

[0238] Fig. 15 shows a perspective view of a device 1 according to the invention in a further embodiment. The device 1 is essentially cylindrical, but a length of the device 1 shown in Fig. 15 along a longitudinal axis L of the device 1 is greater than a length of the device 1 shown in Fig. 2. The device 1 shown in Fig. 15 also has a jacket surface 2 and an end face 3 facing the door and an end face 4 facing away from the door and is fastened - analogous to the explanations for Fig. 1 - with the end face 3 facing the door to a door (not shown) or to a locking cylinder of the door.

[0239] Corresponding to the device 1 shown in Fig. 2, the device 1 shown in Fig. 15 also has a haptic actuating element designed as a push button 8 and an optical output element 10 with a light output element 11 on the end face 3 facing away from the door. Likewise, a part of the lateral surface 2 of the device 1, which is formed by a rotating body ?, forms a manual actuating element 12 of the device 1.

[0240] Also shown in Fig. 15 is a locking element 9 of the device 1 for mechanically connecting the carrier body 6 to the door or a door fastening element. The function of this locking element 9 is explained in more detail with reference to Fig. 17. Not visible in Fig. 15 is a connection element 46 for connecting an external power source. This has also already been explained with reference to the embodiment shown in Fig. 1.

[0241] Fig. 15 shows an internal volume 14 of the device 1, wherein, among other things, partial bodies of the rotating body 7, in particular a first hollow body 15, are arranged in the internal volume 14. This first hollow body 15 serves to accommodate at least one battery 27 (see Fig. 16) for supplying energy to a drive device of the device 1 and thus forms a battery section or compartment of the device 1. The hollow body 15 has a recess on an end face facing the door, which recess serves to accommodate a locking cylinder actuating element, in particular a key. A locking cylinder actuating element, in particular designed as a key, can therefore be arranged in this recess, wherein it is then connected to the hollow body 15 in a rotationally fixed manner, e.g. in a form-fitting manner. Fig. 15 shows that the recess is slit-shaped. Various components or sections of the carrier body 6 can also be seen.15 a cover element 13 and a carrier fastening element 21, which is mechanically rigidly connected to a connecting section 18 (see Fig. 16). The carrier fastening element 21 corresponds to the carrier fastening element 21 shown in Fig. 2. Not shown in Fig. 15 is that the carrier body 6 can have at least one hollow section and a base section 25, wherein a section of the rotating body 7 extends through a through opening 31 in the base section 25 of the carrier body 6 (see Fig. 3). Also not shown is a light source of the device 1 and a light-guiding element 37 (see Fig. 13) of the device 1, which can be arranged in an internal volume of the device 1, in particular of the manual actuation section or manual actuation element 12.Also not shown is a drive device of the device 1 for driving the rotating body 7, which can be arranged in an internal volume of the device 1, in particular the manual actuation section or manual actuation element 12. Such a drive device is designed, in particular, as an external rotor motor.

[0242] Fig. 16 shows a longitudinal section through the device 1 shown in Fig. 15. Shown are the support fastening element 21, a support body 6 and a rotating body 7 of the device 1. In contrast to the embodiment of the device 1 shown in Fig. 3, the first hollow body 15 of the rotating body 7 is designed differently from the first hollow body 15 shown in Fig. 3. The first hollow body 15 has a ceiling section 91 and a floor section 33, wherein the ceiling section 91 forms an end face facing the door and the floor section 33 forms a floor side of the first hollow body 15 facing away from the door. It is shown that a jacket section 92 of the first hollow body 15 is open at least in sections in order to enable an arrangement of batteries 27 in the interior volume of the hollow body 15.The batteries 27 can be arranged in the interior volume of the first hollow body 15 such that a longitudinal axis of the batteries 27 can be oriented parallel to the longitudinal axis L of the device 1. The first hollow body 15 has two intermediate walls 93, which extend in the interior volume of the first hollow body 15 between the bottom section 33 and the top section 91. A surface of the intermediate walls 93 can be oriented parallel to a longitudinal axis of the first hollow body 15. The intermediate walls 93 are arranged parallel to one another, with the volume between the intermediate walls 93 forming the explained section 38 for receiving a lock cylinder actuating element and a partial volume of the interior volume 17 of the first hollow body 15. Thus, the axis of rotation of the rotating body 7 can also run through the section 38, and the intermediate walls 93 can be arranged at a distance from this axis of rotation.The ceiling section 91 has a slot-shaped opening through which the locking cylinder actuating element can be inserted into the volume between the intermediate walls 93. Fig. 16 shows that a bottom surface 94 of the section 38 is offset with respect to the bottom section 33 along the longitudinal axis L of the device 1 towards the end face 4 of the device 1 facing away from the door. In particular, a section of the intermediate walls 93 extends through the bottom section 33. The batteries 27 are arranged in a remaining part of the internal volume of the first hollow body. As in the embodiment shown in Fig. 3, a connecting section 18 of the carrier body 6 is arranged between an outer wall of the first hollow body 15 and an inner wall of a further hollow body 19 of the rotating body 7 and serves to mechanically connect a supporting section 20 of the carrier body 6 to the door or a door fastening element.The arrangement and design of further elements, e.g. the device 1, can also be given in accordance with the embodiment shown in Fig. 3.

[0243] According to the embodiment shown in Fig. 3, the hollow bodies 15, 19 of the rotating body 7 are designed as separate components and mechanically connected. The mechanical connection is made in particular via a screw 30 through a threaded portion 98. The connecting portion of the hollow bodies 15, 19 extends through a through-opening 31 of the carrier body 6, in particular the through-opening formed by the support portion 20 and a through-opening 31 in the base portion 25. It also extends through the through-opening formed by the support portion 20. It is further shown that a portion of the intermediate walls 93 also extends into the through-opening 31 in the base portion 25.

[0244] In particular, a stator 28 (see Fig. 6) of a drive device can be attached to the support body 6 in the support section 20. This drive device can comprise the stator 28 and a rotor 54 and can be designed as an external rotor motor. The stator 28 can, in particular, be attached to or rest against an outer surface of the support section 20.

[0245] Fig. 17 shows a perspective view of a door fastening element designed as a fastening plate 5 from a side facing the door. The fastening plate 5 is circular disk-shaped and has a central through-opening 39. The central through-opening 39 is arranged in a central recess 43 in the door-facing surface of the fastening plate 5, wherein this recess 43 extends from a central region of the fastening plate 5 in the radial direction, starting from a central axis of the fastening plate 5, to the edge of the fastening plate 5. This recess 43 serves to accommodate a section of a locking cylinder protruding from the door. The fastening plate 5 can be plugged onto such a section, wherein the protruding section then extends into the recess 43.

[0246] The central through-opening 39 has a first circular section 39a and a further circular section 39b, wherein a diameter of the first circular section 39a is larger than a diameter of the further circular section 39b. The circular sections 39a, 39b are connected via a connecting section 39c. While a center line of the first circular section 39a can correspond to the longitudinal axis L of the device 1 (when the latter is fastened to the mounting plate 5), a center line of the further circular section 39b is arranged radially offset from the longitudinal axis L (see Fig. 1) of the device 1.The further circular section 39b serves to accommodate a screw or other fastening means, whereby this screw can be screwed from the side of the mounting plate 5 facing away from the door through the further circular section 39b into any threaded holes present in the locking cylinder or lock or the door. This allows the mounting plate 5 to be screwed to the door.

[0247] A lock cylinder actuating element can extend through the first circular section 39a and is arranged in a corresponding receiving section of the rotating body (not shown in Fig. 17).

[0248] Threaded holes 40 are arranged around the through opening 39, in particular the first circular section 39a. The threaded holes 40 are arranged and / or oriented in such a way that reliable attachment to a predetermined locking cylinder is ensured, e.g., to a locking cylinder used in the EU, Switzerland, the United Kingdom, or the Nordic countries.

[0249] Center lines of two different threaded holes can enclose a predetermined angle, but can also run parallel to each other.

[0250] The threaded holes 40 extend from a side of the fastening plate 5 facing away from the door to the side facing the door. The center lines of the threaded holes 40, from an opening of the threaded hole facing away from the door to an opening facing the door, are oriented toward the recess 43. The threaded holes 40 serve to accommodate screws (not shown), in particular grub screws, which can be screwed into the threaded holes 40 from the side of the fastening plate 5 facing away from the door in order to establish a clamping connection with a locking cylinder arranged in the recess 43. In particular, with the embodiment shown in Fig. 17, a three-point clamping connection of the fastening plate 5 to the locking cylinder can be established, in particular with the section of the locking cylinder arranged in the recess 43.The door-facing openings of the threaded holes 40 are arranged in beveled side surfaces of recesses 41 in the door-facing surface of the fastening plate 5, wherein these recesses 41 are open in particular towards the door as well as towards the recess 43. Also shown are two further decentralized through-openings 42, which also serve to accommodate screws. These screws can be screwed from the side of the fastening plate 5 facing away from the door through the decentralized through-openings 42 into any threaded holes present in the locking cylinder or lock or the door. These decentralized through-openings 42 also enable the fastening plate to be screwed to the door. A center line of the decentralized through-openings 42 is arranged radially offset from a center line of the first circular section 39a.Also shown is that the door-facing surface of the mounting plate 5 is, at least in sections, a straight and uncurved surface. This can serve as an adhesive surface 44 for bonding the mounting plate 5 to the door or a lock.

[0251] On a radial outer surface of the casing, the fastening plate 5 has the guide webs 24, already explained with reference to Fig. 2, for guiding an assembly movement, which can be inserted into corresponding bayonet recesses 45 of the carrier body 6, in particular of a carrier fastening element 21 (see Fig. 2). In the illustrated embodiment, the fastening plate 5 has three guide webs 24 along the outer surface of the casing, which - like the bayonet recesses and in particular corresponding to their arrangement - are arranged irregularly along the outer surface of the casing. The guide webs 24 are arranged on the edge of the outer surface of the fastening plate 5 facing the door and protrude therefrom. In the area of ​​the guide webs 24, the outer surface of the casing has manufacturing-related recesses 100.

[0252] The fastening plate 5 further comprises a spring-loaded locking element 9, which is arranged in a blind-hole-like recess in the outer surface of the casing. This locking element 9 is pressed radially outwards by the spring force of a spring element 47 (see Fig. 19). When the carrier body 6 is mounted on the fastening plate 5, the locking element 9 can extend through through-openings in the carrier fastening element 21 and cover element 13 and thus block a relative movement, in particular a rotational movement for disassembly (dismantling movement) between the carrier body 6 and the fastening plate 5. To release this disassembly movement, a user can press the locking element 9 radially inwards through the through-openings and out of them. The disassembly movement is then released.

[0253] Fig. 18 shows a perspective view of the door fastening element shown in Fig. 17 from a side facing away from the door. On a surface facing away from the door, the fastening plate 5 has stiffening webs 48. Recesses 50 can be arranged between these stiffening webs 48 in order to save material during the manufacture of the fastening plate 5 and to ensure a thickness (strength) of the door fastening element 21 that is as constant as possible for production, since with a thickness that is as constant as possible, undesirable uneven mechanical deformation during a production-related cooling process is minimized. For the sake of clarity, only one stiffening web 48 and one recess 50 are provided with a reference numeral. It is shown that the threaded holes 40 are each arranged in a side wall of one of these recesses.Overall, the door fastening element 21 has the same thickness in the area of ​​the recesses 50 on the surface facing away from the door and in the area of ​​the central recess 43 on the surface facing toward the door, which—as previously explained—enables high-quality manufacturing. Likewise, the fastening plate 5 on the surface facing away from the door has recesses 49 for receiving screw heads, which can be produced, for example, by countersinking, in the area of ​​the further, partially circular section 39b and the decentralized through openings 42.

[0254] Fig. 19 shows a cross section through the fastening plate 5 shown in Fig. 17. In particular, the spring-loaded locking element 9 can be seen. The spring-loaded locking element 9 comprises an enveloping body 70, a push button 71 and the spring element 47. The push button 71 is movably, in particular linearly movable, mounted in the enveloping body 70. An inner surface of a base section 72 of the enveloping body serves as a stop surface for limiting the relative movement between the enveloping body 70 and the push button 71. An inner surface of a cover section 73 of the enveloping body 70 serves as a further stop surface for limiting the relative movement between the enveloping body 70 and the push button 71. A through opening is arranged in the cover section 73, through which opening a partial section 75 of the push button 71 extends. The push button 71 is formed as a hollow cylinder, wherein the spring element 47 is arranged in an inner volume of the push button 71.A first end of the spring element 47 rests on the base section 72 of the enveloping body 70, and a second end of the spring element 47 rests on an inner surface of the end face of the push button 71. A jacket section of the push button 71 has subsections 74, 75 with different diameters, wherein the diameter of a first subsection 74 is larger than the diameter of the further subsection 75. It is also shown that the inner diameter of the jacket section is constant. The further subsection 75 extends through the explained through-opening in the cover section 73. The transition between the subsections 74, 75 forms a stop surface of the push button 71, which can strike the inner surface of the cover section 73. The enveloping body 70 shown in Fig. 19 is essentially cuboid-shaped and arranged in a recess / depression on the outer surface of the jacket of the fastening plate 5.Thus, a positive connection can be established between the enveloping body 70 and the mounting plate 5. A bottom portion of this recess can have further recesses that serve to insert a tool for disassembling the enveloping body 70.

[0255] List of reference symbols

[0256] 1 device

[0257] 2 lateral surface

[0258] 3 front side facing the door

[0259] 4 front side facing away from the door

[0260] 5 Mounting plate

[0261] 6 carrier twill

[0262] 7 rotating bodies

[0263] 8 push button

[0264] 9 Rastel ement

[0265] 10 optical output element

[0266] 11 Light output element

[0267] 12 Manual operating element

[0268] 13 Cover element

[0269] 14 Internal volume of the device

[0270] 15 first hollow body

[0271] 16 Cover element

[0272] 17 Internal volume of the first hollow body

[0273] 18 Connecting section of the carrier body

[0274] 19 further hollow bodies of the rotating body

[0275] 20 Supporting section of the carrier body

[0276] 20a, 20b Sections of the supporting section

[0277] 21 Carrier fastening element

[0278] 22 locking recess

[0279] 23 locking lug

[0280] 24 guide bridge

[0281] 25 Bottom section of the carrier body

[0282] 26a, 26b,

[0283] 26c, 26d slip ring (segment)

[0284] 27 Battery

[0285] 28 Stator

[0286] 29 circuit board

[0287] 30 screw

[0288] 31 Through hole in the bottom section of the carrier body

[0289] 32 ball bearing bottom section of the first hollow body

[0290] Internal volume of the further hollow body

[0291] Bottom section of the further hollow body

[0292] coupling nose

[0293] Light-guiding element

[0294] Section for receiving a locking cylinder actuating element central through-hole of the fastening plate a first circular section of the central through-hole b further circular section of the central through-hole c connecting section

[0295] threaded holes

[0296] Recess decentralized through openings

[0297] recess

[0298] Adhesive surface

[0299] Bayonet recess

[0300] connecting element

[0301] spring element

[0302] Stiffening bars

[0303] Deepenings

[0304] recess

[0305] ball bearings

[0306] Stator windings

[0307] Pole shoes

[0308] rotor

[0309] permanent magnet

[0310] ball bearings

[0311] Tooth section

[0312] First stage gear

[0313] Second stage gear

[0314] Planetary gear carrier a, 60b sub-carrier

[0315] Wave

[0316] Link ring first contact element of the connecting element second contact element of the connecting element

[0317] Notch Notch

[0318] Connection circuit board

[0319] Through opening of the connecting section

[0320] Conductor tracks

[0321] Envelope

[0322] push button

[0323] Bottom section of the envelope

[0324] Lid section of the enveloping body

[0325] Central section of the stator

[0326] Hollow ring first coupling ring further coupling ring

[0327] Coupling webs of the first coupling ring

[0328] Coupling lugs recessed section

[0329] Coupling section

[0330] Transition section

[0331] Wave spring a, 85b Contact elements c, 85d Contact elements

[0332] Support element

[0333] Force transmission element a, 87b Light guide elements

[0334] Switch operating bridges

[0335] microswitch

[0336] Actuating bridges

[0337] Ceiling section of the first hollow body

[0338] Shell section of the first hollow body

[0339] partition wall

[0340] Bottom surface hollow cylindrical section of the connecting section

[0341] web

[0342] Threaded section

[0343] Rubber mat 0 Recess 1 Coupling hollow body 2 Fastening sleeve 103 Stop bar

[0344] 104 passage opening

[0345] 105 Outer surface of the first coupling ring

[0346] 105a, 105b subsection

[0347] 106 contact surface

[0348] 107 Guide nose

[0349] 108 Bridge

[0350] 111 hollow cylindrical section

[0351] 109 first through-opening of the cover element

[0352] 110 additional through-opening of the cover element

[0353] 112 Light source

[0354] 113 front side

[0355] L Longitudinal axis

[0356] R rotation axis

Claims

Patent claims 1. Device for actuating a lock, comprising: a carrier body (6), a rotating body (7) for generating a locking movement of the lock, which is rotatably mounted in or on the carrier body (6), a drive device for driving the rotating body (7), characterized in that a stator (28) of the drive device is fastened to the carrier body (6) and the rotating body (7) has at least one battery section for receiving at least one battery (27) for supplying energy to the drive device or a stator (28) of the drive device is fastened to the rotating body (7) and the carrier body (6) has at least one battery section for receiving at least one battery (27) for supplying energy to the drive device.

2. Device according to claim 1, characterized in that the rotating body (7) comprises at least one first receiving body (15) for receiving the at least one battery (27) and at least one actuating body (19), wherein the receiving body (15) is arranged at least in sections in an internal volume (34) of the actuating body (19).

3. Device according to claim 2, characterized in that the carrier body (6) is arranged at least in sections in the inner volume (34) of the actuating body (19).

4. Device according to claim 3, characterized in that the carrier body (6) is arranged at least in sections between an outer wall of the receiving body (15) and an inner wall of the actuating body (19).

5. Device according to one of claims 1 to 4, characterized in that a portion of the rotating body (7) extends through a through opening (34) of the carrier body (6).

6. Device according to one of claims 2 to 5, characterized in that the rotating body (7) has a cover element (16) for the receiving body (15).

7. Device according to claim 6, characterized in that the cover element (16) has a section (38) for receiving a locking cylinder actuating element or an interface for the mechanical actuation of a lock element.

8. Device according to one of the preceding claims, characterized in that at least a portion of the rotating body (7), in particular of the actuating body (19), forms a manual actuating element for actuation by a user.

9. Device according to one of the preceding claims, characterized in that the drive device is designed as an external rotor motor.

10. Device according to one of the preceding claims, characterized in that the device (1) comprises a gear for transmitting a movement of a rotor (54) of the drive device to the rotating body (7) or the carrier body (6).

11. Device according to one of the preceding claims, characterized in that the device (1) comprises a coupling for establishing a separable connection between a rotor (54) of the drive device and the rotating body (7) or the carrier body (6).

12. Device according to one of the preceding claims, characterized in that the carrier body (6) has at least one element for mechanical connection to a door fastening element (21).

13. Device according to one of the preceding claims, characterized in that the carrier body (6) and / or the rotating body (7) - an element for transmitting energy from a battery (27) to the drive device and / or - an element for transmitting energy from a connecting element (46) for connecting an external energy source to the drive device and / or to a battery (27) arranged in the battery section.

14. Device according to one of the preceding claims, characterized in that the carrier body (6) and / or the rotating body (7) comprises at least one element for contact-based position determination.

15. Method for operating a device (1) for actuating a lock according to one of claims 1 to 14, characterized in that the drive device is operated to generate a rotational movement of the rotating body (7).

16. Device for actuating a lock, comprising: a carrier body (6), a rotating body (7) for generating a locking movement of the lock, which is rotatably mounted in or on the carrier body (6), a drive device for driving the rotating body (7), characterized in that the carrier body (6) has at least one hollow section and a bottom section (25), wherein a section of the rotating body (7) extends through a through opening (31) in the bottom section (25) of the carrier body (6).

17. Device according to claim 16, characterized in that the bottom section (25) separates an inner volume of the hollow section into two partial volumes.

18. Device according to one of claims 16 to 17, characterized in that the hollow section of the carrier body (6) is a first section of the carrier body (6) with a first outer diameter, wherein the carrier body (6) comprises a further section with a further outer diameter, wherein the further outer diameter is smaller than the first outer diameter, wherein the further section is fastened to the base section (25).

19. Device according to claim 18, characterized in that the further section has a fastening section for fastening a stator (28) of the drive device.

20. Device according to one of claims 16 to 19, characterized in that the rotating body (7) comprises a receiving body, wherein the receiving body is arranged in at least part of an internal volume of the hollow section and is connected to the section of the rotating body (7) which extends through the through-opening (31) in the bottom section (25) of the carrier body (6).

21. Device according to claim 20, characterized in that the receiving body serves to receive at least one battery (27).

22. Device according to one of claims 16 to 21, characterized in that the rotary body (7) comprises an actuating body, wherein the actuating body forms a manual actuating element (12) for actuation by a user, wherein the actuating body is connected to the section of the rotary body (7) which extends through the through opening (34) in the bottom section (25) of the carrier body (6).

23. Device according to claim 22, characterized in that the carrier body (6) is arranged at least in sections in the inner volume (34) of the actuating body (19).

24. Device according to one of claims 16 to 23, characterized in that the carrier body (6) is arranged at least in sections between an outer wall of a receiving body and an inner wall of an actuating body.

25. Device according to one of claims 16 to 24, characterized in that a stator (28) of the drive device is fastened to the carrier body (6) and the rotating body (7) has at least one battery section for receiving at least one battery (27) for supplying energy to the drive device or a stator (28) of the drive device is fastened to the rotating body (7) and the carrier body (6) has at least one battery section for receiving at least one energy storage device (27) for supplying energy to the drive device.

26. Device according to one of claims 16 to 25, characterized in that the drive device is designed as an external rotor motor and / or the device (1) comprises a gear for transmitting a movement of a rotor (54) of the drive device to the rotating body (7) or the carrier body (6) and / or the device (1) comprises a coupling for establishing a separable connection between a rotor (54) of the drive device and the rotating body (7) or the carrier body (6).

27. Device according to one of claims 16 to 26, characterized in that the carrier body (6) has at least one element for mechanical connection to a door fastening element (21).

28. Device according to one of claims 16 to 27, characterized in that the carrier body (6) and / or the rotating body (7) has an element for transmitting energy from a battery (27) to the drive device and / or an element for transmitting energy from a connecting element (46) for connecting an external energy source to the drive device and / or to a battery (27) arranged in the battery section.

29. Device according to one of claims 16 to 28, characterized in that the carrier body (6) and / or the rotating body (7) comprises at least one element for contact-based position determination.

30. Method for operating a device (1) for actuating a lock according to one of claims 16 to 29, characterized in that the drive device is operated to generate a rotational movement of the rotating body (7).

31. Device for actuating a lock, comprising: a carrier body (6), a rotating body (7) for generating a locking movement of the lock, which is rotatably mounted in or on the carrier body (6), a drive device for driving the rotating body (7), an optical output element (10) and at least one light source (112), characterized in that the device (1) has at least one light-guiding element (37, 87a, 87b), wherein radiation generated by a light source (112) is guided through the at least one light-guiding element (37, 87a, 87b) to the optical output element (10).

32. Device according to claim 31, characterized in that the rotary body (7) has the optical output element (10) and the light guide element (37, 87a, 87b) on the T arrier body (6) is attached.

33. Device according to claim 32, characterized in that a portion of the rotary body (7) forms a manual actuation portion for actuation by a user, wherein the optical output element (10) is arranged on an end face of the manual actuation portion.

34. Device according to one of claims 31 to 33, characterized in that the light-guiding element (37, 87a, 87b) is curved or has at least one curved section.

35. Device according to claim 34, characterized in that the light-guiding element (37, 87a, 87b) has an input section for radiating radiation into the light-guiding element (37) and an output section for emitting radiation from the light-guiding element (37, 87a, 87b) to the optical output element (10), wherein a central center line of the light-guiding element (37, 87a, 87b), which connects the input section and the output section, is curved.

36. Device according to one of claims 31 to 35, characterized in that the light-guiding element (37, 87a, 87b) is a ring-shaped or ring-section-shaped element.

37. Device according to one of claims 31 to 36, characterized in that a light-guiding element (37, 87a, 87b) comprises different segments which are optically separated from one another or in that the device (1) comprises a plurality of light-guiding elements (37, 87a, 87b) which are optically separated from one another.

38. Device according to one of claims 31 to 37, characterized in that the device (1) comprises at least one haptic actuating element, wherein the at least one haptic actuating element or a force transmission element (87) for transmitting a compressive force exerted on the haptic actuating element is arranged at least in sections in an internal volume encompassed by the at least one light-guiding element (37, 87a, 87b).

39. Device according to one of claims 31 to 38, characterized in that a light-guiding element (37, 87a, 87b) is embedded in a carrier element (86).

40. Device according to claim 39, characterized in that a material of the carrier element (86) is impermeable to radiation emitted by at least one light source (112).

41. Device according to claim 39 or 40, characterized in that a material of the carrier element (86) is reflective for radiation emitted by at least one light source (112).

42. Device according to one of claims 39 to 41, characterized in that a force transmission element (87) is arranged in an internal volume of the carrier element (86).

43. Device according to one of claims 39 to 42, characterized in that the carrier element (86) is ring-shaped or disc-shaped.

44. Device according to one of claims 31 to 43, characterized in that the device (1) comprises a plurality of light sources (112), wherein at least one of the light sources (112) is arranged such that radiation is radiated into a first light-guiding element (87a) or into a first segment of a light-guiding element (37) and at least one further one of the light sources (112) is arranged such that radiation is radiated into a further light-guiding element (87b) or into a further segment of the light-guiding element (37).

45. Method for operating a device (1) for actuating a lock according to one of claims 31 to 44, characterized in that the drive device is operated to generate a rotational movement of the rotating body (7).

46. ​​Device for actuating a lock, comprising: a carrier body (6), a rotating body (7) for generating a locking movement of the lock, which is rotatably mounted in or on the carrier body (6), a drive device for driving the rotating body (7), characterized in that the drive device is designed as an external rotor motor.

47. Device according to claim 46, characterized in that a stator (28) of the drive device is fastened to the carrier body (6) or to the rotating body (7).

48. Device according to claim 47, characterized in that the carrier body (6) comprises a first section with a first outer diameter and a further section with a further outer diameter, wherein the further outer diameter is smaller than the first outer diameter, wherein the further section has a fastening section for fastening the stator (28).

49. Device according to claim 48, characterized in that the carrier body (6) comprises a bottom section (25) for connecting the sections with different outer diameters, wherein the further section is fastened to the bottom section (25).

50. Device according to one of claims 46 to 49, characterized in that the external rotor motor is designed as a brushless direct current motor (BLDC motor) or as a permanent magnet synchronous motor (PMSM motor).

51. Device according to one of claims 46 to 50, characterized in that a rotor (54) of the drive device is rotatably mounted on or rotatably relative to the carrier body (6) or on the rotating body (7).

52. Device according to one of claims 46 to 51, characterized in that the device (1) comprises a gear for transmitting a movement of a rotor (54) of the drive device to the rotating body (7) or the carrier body (6).

53. Device according to claim 52, characterized in that the gear comprises a sun gear, wherein the rotor (54) of the drive device has or forms the sun gear.

54. Device according to one of claims 46 to 53, characterized in that the device (1) comprises a coupling for establishing a separable connection between a rotor (54) of the drive device and the rotating body (7) or the carrier body (6).

55. Device according to claim 54, characterized in that a first coupling element is or can be connected mechanically to the rotor (54) of the drive device and a further coupling element is or can be connected to the rotating body (7), in particular a manual actuation section of the rotating body (7).

56. Device according to one of claims 46 to 55, characterized in that a portion of the rotating body (7) extends through a through opening (31) of the carrier body (6).

57. Device according to claim 56, characterized in that a stator (28) is attached to an outer surface of a support section (20) of the carrier body (6), wherein a central portion (74) of the stator (28) has a through-opening through which the support portion (20) and the rotating body (7) extend.

58. Device according to one of claims 46 to 57, characterized in that the carrier body (6) and / or the rotating body (7) comprise an element for energy transmission from a battery (27) to Drive device and / or an element for energy transmission from a connection element (46) for connecting an external energy source to the drive device and / or to a battery (27) arranged in the battery section.

59. Device according to one of claims 46 to 58, characterized in that the carrier body (6) and / or the rotating body (7) comprises at least one element for contact-based position determination 60. Method for operating a device (1) for actuating a lock according to one of claims 46 to 59, characterized in that the drive device is operated to generate a rotational movement of the rotating body (7).

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