Key for electromechanical locking device

Abstract

The invention relates to a key (1) for an electromechanical locking device (101), in which a longitudinal axis (90), a width axis (92) and a thickness axis (91) are each defined perpendicularly to one another, having a key shaft (2) and a key shaft (50) projecting from the key shaft (2) along the longitudinal axis (90) for insertion into the locking device (101), wherein the key shaft (2) comprises an electrical energy store (85) and / or an electronic device (70), the key shaft (2) comprises a frame (30) in which the energy store (85) and / or the electronic device (70) are accommodated, the frame (30) is rigidly connected to the key shaft (50), and the frame (30) comprises at least one gripping region (40) which forms a surface of the key shaft (2) for gripping by a user.

Description

Technical Field

[0001] The invention relates to a key for an electromechanical locking device. The invention also relates to an assembly method for assembling a key. Background Art

[0002] EP 1 899 924 B1 shows a previously known key for an electromechanical locking device. The previously known key comprises a key handle, on which an electronic device is arranged between two housing shells. A key rod extends from the key handle for insertion into the locking device. An electrical contact is present on the key rod. Summary of the invention

[0003] The object of the present invention is to provide a key for an electromechanical locking device which has sufficient strength for transmitting a torque to the locking device, can be easily assembled and / or ensures convenient and safe use.

[0004] The object is achieved by the features of claim 1. Advantageous developments of the key are described in the dependent device claims, the description and the drawings. In addition, the invention is also achieved by the features of the method claim according to independent claim 13. Advantageous developments of the method are described in the dependent method claims, the description and the drawings. Features and details described in conjunction with the key according to the invention also apply here in conjunction with the method according to the invention, and vice versa. In particular, a key manufactured or manufacturable by the method according to the invention and a method for manufacturing a key according to the invention are protected, as described in the claims, the description and the drawings.

[0005] The invention relates to a key for an electromechanical locking device.

[0006] The electromechanical locking device is preferably a lock cylinder, in particular a double lock cylinder or a half lock cylinder, a furniture lock cylinder or a padlock or a similar device into which a key can be inserted. In particular, the key and the locking device are configured to transmit a torque to the locking device by turning the key to move a thumbwheel, in particular a locking protrusion. By turning the thumbwheel, a closing element, in particular a building door or a cabinet door, can be unlocked or locked. In particular, the locking device includes corresponding electronic equipment arranged in the locking device, which selectively locks and releases the rotation of the key in the locking device according to an electrical signal transmitted by the key. Alternatively, a mechanical coupling between the lock cylinder core and the thumbwheel can be achieved by a signal transmitted by the key. The electronic equipment preferably includes a circuit board.

[0007] The key has a key handle. A key rod preferably extends from the key handle. The key rod is designed to be inserted into the locking device and in particular to transmit a torque to the locking device.

[0008] In order to further define the present invention, it is preferred to define the following imaginary axes and sides:

[0009] The key has a longitudinal axis. The longitudinal axis extends in particular along the key shaft. Correspondingly, the key is inserted into the locking device and removed therefrom along the longitudinal axis. In addition, the key has a width axis and a thickness axis. The longitudinal axis, the width axis and the thickness axis are respectively perpendicular to each other.

[0010] Preferably, two broad sides are defined at the key. The two broad sides are preferably opposite each other. The two broad sides intersect the thickness axis in each case. Particularly preferably, an end face is present on at least one of the two broad sides. The end face is in particular flat. Particularly preferably, an end face is present on each of the two broad sides. One, preferably two, end faces are preferably perpendicular to the thickness axis.

[0011] Furthermore, the key handle preferably has two opposite narrow sides. The narrow sides are preferably perpendicular to the wide sides. Preferably, each narrow side intersects the width axis. The narrow sides are preferably smaller than the wide sides.

[0012] It is also preferred that the key rod extends from the front side of the key handle along the longitudinal axis. The front side is opposite to the rear side of the key handle. In the area of ​​the rear side, there is preferably a key chain opening for fastening the key to a key chain. Preferably, the front side and the rear side intersect the longitudinal axis.

[0013] The key handle preferably comprises an electrical energy storage device and / or an electronic device. The energy storage device is particularly designed to supply power to the electronic device in the key. Additionally or alternatively, the energy storage device can be used to supply power to the locking device as long as the key is inserted into the locking device. The electronic device preferably comprises a lighting device, which is also described in detail.

[0014] It is also preferred that the electronic device comprises a wireless communication module for wirelessly sending and / or receiving signals. The key can communicate with the device by means of the wireless communication module. In particular, the wireless communication module is a wireless communication module configured for near field communication, for example via Bluetooth or ultra-wideband.

[0015] The device is in particular a mobile device, such as a smartphone, tablet or notebook computer. In addition, the device can also be a statically installed device, such as a terminal for door and / or building control.

[0016] Furthermore, the electronic device is preferably configured to communicate with the locking device. As further described in detail, the key preferably has at least one transmission element for this purpose. As soon as the key is inserted into the locking device, the electronic device on the key side is connected in a communicative manner with the electronic device on the locking device side by means of the transmission element.

[0017] The transmission element can be used to send electronic data that can be used to determine whether the user is authorized to unlock. For example, the transmission element can send an authorization code and / or an authorization time window that is checked by the electronic device. Alternatively, the electronic device can receive an opening instruction.

[0018] The communication can take place, for example, in a contact-based manner.

[0019] It is thus possible that the device communicates with the locking device via the key as soon as the key is inserted into the locking device. Communication can take place directly, in which the key immediately forwards information from the transmitter, i.e. the device or locking device, to the receiver, i.e. the locking device or device. In addition, indirect time-staggered communication is possible, in which the key stores and forwards information in a time-staggered manner.

[0020] The transmission element is additionally or alternatively used to transmit electrical energy to the locking device. The electrical energy can be provided for unlocking to turn a key or a coupling dial, and / or the electrical energy can be provided for electronic devices.

[0021] Furthermore, according to the invention, the key handle comprises a frame. The energy storage device and / or the electronic device are located in the frame. The energy storage device and / or the electronic device are therefore accommodated in the frame. For this purpose, in particular, a housing which is also described in detail is used.

[0022] The frame is produced in particular from metal or plastic, in particular fiber-reinforced plastic.

[0023] Preferably, the frame extends around the thickness axis or around an axis parallel to the thickness axis. The frame is preferably in the form of a closed ring; the ring shape does not restrict the geometry of the frame. The frame can be designed in particular to be rectangular or oval.

[0024] The frame - without the electronics, energy storage and housing - surrounds a free space within the frame. The free space is preferably open on both sides, in particular completely open. The electronics and / or energy storage, in particular together with the housing, are arranged in the free space. As soon as the housing is installed in the frame, the free space in the frame is filled by the housing.

[0025] Furthermore, according to the present invention, the key rod is rigidly connected to the frame. In particular, the frame is composed of a first frame part and a second frame part. The key rod is preferably rigidly arranged on the first frame part.

[0026] The rigid arrangement means in particular that the key bar cannot move relative to the frame. That is, it is preferably proposed that the key bar cannot be folded relative to the frame or removed from the frame. Thus, a relatively stable torque transmission from the frame to the key bar and thus to the locking device is possible.

[0027] Furthermore, it is proposed according to the invention that the frame comprises at least one gripping region, which forms the surface of the key handle for gripping by the user. As a result, the user can grip the frame directly—and certainly not just the housing—and thus transmit the required torque directly to the frame. In particular, the entire gripping region has the surface of the key handle for gripping by the user.

[0028] By the combination according to the invention of rigidly connecting the gripping area of ​​the frame to the key rod, the torque transmission from the key to the locking device, in particular to the lock cylinder core of the locking device, has sufficient strength, so that operation is safe and comfortable for the user.

[0029] In this case, a “surface” is understood to mean, in particular, that region of the frame which is exposed and can therefore be touched by the fingers or hands of a user.

[0030] In particular, the frame has at least two opposite gripping areas, each of which is spaced apart from the longitudinal axis so that a torque can be transmitted by means of a corresponding lever. The key handle can particularly preferably be gripped so that the key handle is located between two fingers of the user, and the two fingers are each placed on one of the two opposite gripping areas.

[0031] Particularly preferably, propose that the frame is formed around the surface of the key handle. Here, the frame is preferably completely around, ie, designed in a closed annular shape, and is located on the surface of the key handle along the entire circumference.

[0032] Preferably, at least one gripping region extends over the entire length of the key handle defined parallel to the longitudinal axis when viewed along the width axis (ie, when viewing the narrow side). Thus, the gripping region preferably extends from the front side of the key handle to the rear side.

[0033] Preferably, only that surface which is spaced apart from the longitudinal axis such that a torque can be transmitted over the entire gripping region is considered as a gripping region of the frame. Thus, the gripping region can be designed spaced apart from the longitudinal axis.

[0034] Particularly preferably, the at least one gripping region is a section of the frame which itself or its tangent runs parallel to the longitudinal axis or at a non-90° angle.

[0035] Particularly preferably, the at least one gripping region comprises the point of the key which is furthest away from the longitudinal axis.

[0036] Furthermore, it is preferably provided that at least one grip region does not intersect the longitudinal axis.

[0037] As described, it is preferably provided that the frame comprises opposite gripping areas. The two gripping areas preferably intersect in the same plane perpendicular to the thickness axis.

[0038] It is also preferred that the frame is substantially rectangular or oval. In the case of a rectangular shape, the parallel sides are preferably parallel to the longitudinal axis and spaced apart. The two sides form two opposite gripping areas.

[0039] Furthermore, it is preferably provided that the frame has a frame thickness parallel to the thickness axis of at least 3 mm, in particular at least 5 mm, thereby providing a sufficient area that can be gripped, in particular held, by a user.

[0040] As described, the frame is preferably composed of a first frame part and a second frame part. As a result, the electronic device and / or the energy storage device can be inserted into the frame in an assembly-friendly manner, especially together with the housing. The first frame part and the second frame part are designed to be separated from each other at least when the key is assembled.

[0041] Preferably, the first frame part and the second frame part are connected to each other in a force-fitting and / or form-fitting manner at at least one connection point. Preferably, the first frame part and the second frame part are connected to each other in a force-fitting and / or form-fitting manner, so that in the assembled key, the first frame part and the second frame part are also configured to be separated from each other.

[0042] In particular, at least two oppositely disposed connection locations are provided. Particularly preferably, at each connection location there is at least one locking projection which locks into a corresponding locking counterpart location.

[0043] At least one connection point, preferably at least two connection points, are preferably spaced apart from the longitudinal axis. In particular, there is a connection point in each gripping region.

[0044] Furthermore, it is preferably provided that at least one connection point, in particular two connection points, are located in the front half of the key handle facing the key shaft.

[0045] The key shaft preferably comprises a key shaft base body. The frame, in particular the first frame part, is preferably connected in one piece to the key shaft base body.

[0046] Particularly preferably, the frame, in particular the first frame part, is manufactured integrally with the key stem-base body. The integral manufacturing particularly means that the frame, in particular the first frame part and the key stem-base body, are molded together; for example, by metal casting or by plastic injection molding.

[0047] The key shank base preferably extends over at least half of the length of the key shank; particularly preferably over the entire length of the key shank. This ensures that a large portion of the key shank base can be inserted into the locking device and that torque can be reliably transmitted. The length of the key shank is defined coaxially or parallel to the longitudinal axis.

[0048] Preferably, the first frame part and the key shank base are jointly forked. This means in particular that the first frame part comprises a front section from which two parallel front legs extend. The front section is preferably perpendicular to the longitudinal axis itself or at a tangent. The two front legs are in particular spaced apart from the longitudinal axis. In particular, the two front legs each form a part of two opposite gripping areas. Preferably, the key shank base extends from the front section of the first frame part centrally between the two front legs. In this case, the key shank base extends in one direction and the two front legs extend in opposite directions.

[0049] As already mentioned, the key handle can comprise a housing. The housing preferably comprises a first housing part and a second housing part.

[0050] The housing can be made of plastic.

[0051] Preferably, the housing is surrounded by a frame. The housing is thus arranged in the frame. In particular, the housing is accommodated in the frame and is thus fastened in the frame. Particularly preferably, the frame surrounds the housing over the entire circumference, except for a possible keychain opening that can be formed between the housing and the frame, if necessary.

[0052] The housing accommodates the electronic device and / or the energy storage device. In particular, the housing seals around the electronic device and / or the energy storage device. The accommodation space for the electronic device and / or the energy storage device is particularly formed between the first housing part and the second housing part.

[0053] The housing preferably forms a surface of the key handle, ie the surface accessible to a user, on two opposite broad sides.

[0054] It is preferably provided that the housing protrudes beyond the frame along the thickness axis at least on one side, preferably on both sides.

[0055] It is preferably provided that the frame projects beyond the housing along the longitudinal axis and / or along the width axis.

[0056] The frame, in particular each frame part, preferably comprises at least one guide rail. The respective guide rail is in particular designed to arrange the first housing part and the second housing part relative to each other.

[0057] In particular, at least two guide rails are present in the frame. The guide rails can be arranged parallel to one another.

[0058] Each housing part can have an associated guide rail receptacle. By pushing the frame-side guide rail and the housing-side guide rail receptacle into one another, the two housing parts can be arranged and fixed relative to one another and relative to the frame.

[0059] The guide rail receiving portion can be configured as a groove, and the guide rail can be configured as a complementary projection (also referred to as a protrusion) that fits into the groove. Likewise, in an opposite embodiment, the guide rail can be configured as a groove, and the guide rail receiving portion can be configured as a complementary projection (also referred to as a protrusion) that fits into the groove.

[0060] Particularly preferably, a seal is arranged between the two housing parts. In particular, at least one guide rail or a plurality of guide rails in the frame are designed to press the two housing parts against each other and thereby compress the seal.

[0061] Furthermore, it is preferably provided that the first housing part at the first broad side and the second housing part at the opposite second broad side at least partially form the surface of the key handle.

[0062] It is preferably provided that the key stem comprises at least a transmission element for transmitting electrical energy (also referred to as electricity) and / or electronic data to the locking device. The at least one transmission element is, for example, a metal plate, a metal wire or a conductor track.

[0063] Particularly preferably, at least two of the transmission elements are provided, wherein the transmission elements are arranged symmetrically for two-way key usability. Furthermore, the geometry of the key shank is preferably also selected such that the key can be used as a two-way key. In particular, for two-way key usability, it is provided that the key shank is designed symmetrically with respect to the plane in which the longitudinal axis lies.

[0064] At least one transmission element preferably extends from the electronic device into the key stem.

[0065] The transmission element preferably has a circuit board contact surface inside the key handle, at which the transmission element can be electrically conductively connected to a circuit board of the electronic device.

[0066] In the region of the key shaft, the transmission element preferably has a locking device contact surface which is exposed and—when the key is inserted into the locking device—can be electrically conductively connected to the locking device-side electronics.

[0067] The key bar preferably comprises an insert element. The insert element is preferably made of plastic.

[0068] The insert element is preferably arranged on at least one of the two housing parts, preferably on both housing parts. For example, one of the two housing parts has a receiving groove into which the insert element can be inserted. The receiving groove is covered by the other housing part, so that the insert element is arranged, in particular clamped, between the two housing parts.

[0069] It is preferably provided that the insert element is fastened to the key shank base body, in particular with a force fit and / or a form fit. Particularly preferably, a groove-and-tenon connection is provided between the insert element and the key shank base body.

[0070] Particularly preferably, the key shank base has parallel shank legs spaced apart from one another. The insertion element can be pushed between the shank legs. In particular, the insertion element is connected to at least one of the shank legs via a tongue-and-groove connection. The shank legs can be connected to one another at the front end of the key shank via a shank leg connection. The insertion element does not have to extend to the very front end of the key shank base.

[0071] In the frame, in particular in the front section of the first frame part, there is preferably an insertion element opening through which an insertion element can be inserted from the interior of the frame to the outside into the key shaft.

[0072] The insertion element preferably comprises at least one transmission element. In particular, at least one transmission element is embedded in the insertion element.

[0073] The key preferably comprises a socket, in particular designed as a USB-C interface. The socket is designed for charging the energy storage device and / or for connecting to the electronic device via a cable. Particularly preferably, the electronic device comprises a circuit board, on which the socket is arranged.

[0074] The frame, in particular the second frame part, preferably has a frame socket opening, through which a socket for a corresponding plug can be reached.

[0075] The socket itself does not have to extend into the frame socket opening. On the contrary, it is preferably provided that the socket does not extend into the frame socket opening but is only arranged in the housing.

[0076] Preferably, one of the two housing parts has a housing-socket opening for the socket. The housing-socket opening is preferably closed over the entire circumference, so that the socket is surrounded over the entire circumference by one of the two housing parts. As a result, the sealing of the two housing parts or the sealing toward the socket is designed to be simple.

[0077] As mentioned, the key can comprise a keychain-through opening for fastening the key to a keychain, in particular for accommodating a keychain ring. The keychain-through opening is in particular between the frame and the housing, preferably at the rear side of the key handle.

[0078] Preferably, the rear side of the frame and / or the area resting on the keychain opening separates the gripping areas from each other, and the rear side of the frame and / or the area resting on the keychain opening are preferably limited outside the gripping area.

[0079] It is preferably provided that the key has a button on or in the key handle. Particularly preferably, the key handle comprises only a single button. The button is preferably located on a circuit board and thus inside the described housing. In particular, only a single button is provided so that the user does not have a choice between a plurality of buttons but can only press the one button.

[0080] In order to operate the key, the housing preferably has an operating section. The operating section can be pressed by the user. In particular, the user presses the operating section on a broad side and supports the key handle with an opposite finger or with the hand on the opposite broad side.

[0081] In addition to the operating section, the housing preferably also comprises a supporting section. In particular, any area of ​​the housing that is not an operating section, ie that cannot be flexibly pressed against a key by a user, is a “supporting section” of the housing.

[0082] It is further preferably provided that the key can be actuated by pressing the first housing part and the second housing part against each other. In particular, two opposite broad sides of the key handle are pressed against each other.

[0083] It is preferably provided that the operating section and the support section are formed integrally with respect to one another. Particularly preferably, this is an integral design of the operating section and the support section, preferably as an injection molded part, particularly preferably as a single-component injection molded part. Particularly preferably, the first housing part comprises the operating section surrounded by the support section. For this purpose, the first housing part is particularly integrally formed.

[0084] As already described, the housing preferably forms an end face of the key handle at at least one broad side, in particular a flat end face. The actuating section is preferably located in the end face. A portion of the end face can also be formed by the supporting section. The end face is preferably surrounded by an edge section of the first housing part, in particular around the entire circumference. The edge section in particular has the described guide rail receptacle, which is a connecting element to the frame.

[0085] It is preferably provided that the actuating section comprises at least 20%, preferably at least 25%, particularly preferably at least 30% of the extension of the broad side. This is the broad side on which the actuating section is arranged, ie the broad side which can be pressed in for pressing a button.

[0086] Additionally or alternatively, it is preferably provided that the actuation section comprises at least 30%, preferably at least 40%, particularly preferably at least 50% of the extent of the described end face.

[0087] “Extent” is understood in particular to mean the projected area perpendicular to the thickness axis, wherein either the area of ​​the entire key shaft or the area of ​​the end face is decisive in this case.

[0088] It is preferably provided that the actuation section merges into the support section within the described end face.

[0089] Particularly preferably, the actuation section and the support section differ, in particular in the region of the end face, at least partially in the inward wall thickness of the housing. The transition from one wall thickness to another can occur abruptly at a shoulder, or the wall thickness can change continuously or in a plurality of shoulders.

[0090] The transition from one wall thickness to another is not necessarily at the transition from the actuating section to the supporting section. It is important that a correspondingly flexible design of the housing is possible through the varying wall thickness, so that the actuating section can be easily pressed inwards towards the button.

[0091] The change in wall thickness is particularly “inside”, so that a flat end face is obtained on the outside surface of the key shank and the difference in wall thickness is not visible.

[0092] Furthermore, it is preferably provided that the in particular one-piece support section forms the housing on the narrow side of the key shaft. Thus, if the key is viewed along the longitudinal axis or along the width axis (i.e. when viewing the front side, the rear side or the narrow side), in particular the frame section and thus at least a part of the support section of the housing can be seen - partially covered by the surrounding frame.

[0093] The housing preferably has a support column in order to limit the path when the operating section is actuated. The support column prevents the operating section from being pressed too hard onto the key. The support column is formed in particular by a first support column part and a second support column part formed separately. The two support column parts collide with each other when the operating section is pressed.

[0094] In particular, the first support column part is located on the first housing part and the second support column part is located on the second housing part.

[0095] Preferably, the actuation section is designed in one piece, in particular integrally, with one of the support column parts.

[0096] The circuit board preferably has a column-recess. The column-recess can be a hole or a slot. A support column, for example at least one of the two support column components, extends through the column-recess. As a result, the support column can be arranged relatively close to the key to be protected.

[0097] In particular, it is proposed that the electronic device of the key is configured to start communication with a device, such as a smart phone, when a button is actuated. In particular, after the button is actuated, the electronic device sends a corresponding signal via a wireless communication module to establish communication with the device.

[0098] Furthermore, it is preferably provided that the electronics are designed such that an insertion of the key rod into the locking device and / or a removal of the key rod from the locking device causes an action in the electronics, for example waking up the electronics and / or establishing communication with the device.

[0099] Furthermore, it is preferably provided that the key handle of the key comprises a lighting device.

[0100] Preferably, the electronic device is designed to control the lighting device for illuminating at least one information. The information can be, for example, the state of the key. Furthermore, the information can relate to the locking device as long as the key is inserted into the locking device. Furthermore, the information can relate, for example, to a wireless communication connection between the key and a device, such as a smartphone.

[0101] The light-emitting device in the key handle is particularly designed to emit light in at least two colors. Particularly preferably, the light-emitting device comprises at least one light-emitting element. The light-emitting element is preferably a single LED. The single light-emitting element is particularly designed to emit at least two, preferably at least three, particularly preferably at least four colors. For example, the light-emitting element is an RGB-LED. The LED can in principle emit red, green or blue light and mixed colors, so that, for example, white light can also be generated thereby.

[0102] It is preferably provided that the electronic device is designed to display different information in different modes by actuating the lighting device.

[0103] The corresponding "mode" is characterized by color and / or blinking pattern and / or light intensity. Thus, two different modes differ in color and / or blinking pattern and / or light intensity.

[0104] It is preferably provided that the electronic device is designed to display different information about the key in different modes by actuating the lighting device.

[0105] Furthermore, it is preferably provided that the electronic device is designed to display different information about the locking device in different modes by actuating the lighting device.

[0106] As described, the key is configured to wirelessly connect to the device, in particular via a wireless communication module of the electronic device. The electronic device is preferably configured to display the search for a communication connection and / or the existence of a communication connection by operating a light-emitting device, in particular a light-emitting element. The "search for a communication connection" or "existence of a communication connection" here forms the "information" displayed via the light-emitting device.

[0107] As described, the key can include an electrical energy store. Preferably, the electronic device is designed to display the charge state of the energy store as information by actuating a lighting device, in particular a lighting element.

[0108] The key preferably has an interface for charging the energy storage device, for example the socket described. The electronic device is preferably designed to display the charging process and / or the end of the charging process as information by actuating a lighting device via the lighting device, in particular a lighting element. It is particularly preferred that the display is limited to the time the interface is connected to the energy source.

[0109] Furthermore, it is preferably provided that the electronic device is designed to display at least one of the following faults as information by actuating the luminous device via the luminous device, in particular the luminous element:

[0110] The fault may be a faulty locking device. For example, the key can emit a corresponding signal via a lighting device, which prompts the user to check on a device (eg a smartphone) which fault is involved.

[0111] A faulty key and / or disturbed communication with the device can be displayed in a similar manner.

[0112] Furthermore, it is preferably proposed that the electronic device is configured to actuate the lighting device, in particular the lighting element, according to a triggering event to reproduce at least one information in an illuminating manner. The triggering event can be at least one of the following events: pressing the described key of the key; and / or inserting the key into the locking device; and / or removing the key from the locking device; and / or connecting the interface to an energy source.

[0113] In addition, it is preferably proposed that the electronic device is configured to display different modes, i.e. different colors and / or different flashing modes and / or different light intensities, which are successively triggered by a particularly unique triggering event by controlling the luminous device. In particular, different modes can be used to display different information of the key and / or locking device.

[0114] Furthermore, it is preferably provided that the electronic device is designed to actuate the lighting device to display the charge state of the energy store after the key has been inserted into the locking device, wherein in particular the display of the charge state is one of a plurality of items of information displayed after the key has been inserted.

[0115] It is also preferably provided that the key can be configured so that at least part of the information that can be displayed by the light-emitting device is not displayed by the light-emitting device, in particular permanently, wherein the configuration can be stored in the electronic device. It is thus possible, for example, to deactivate specific information or its display for certain users or certain application purposes in order to save energy and not confuse the user.

[0116] It is preferably proposed that the housing of the key comprises at least one light guide, which is made of, for example, corresponding plastic or glass and conducts light, for example, from an LED on a circuit board to the outside, so that the light can be seen by a user.

[0117] It is preferably provided that the lighting device, preferably the lighting element, emits light via a light guide toward the broad side of the key.

[0118] Furthermore, it is preferably provided that the lighting device, preferably the lighting element, emits light via a light guide across the frame toward the key shaft.

[0119] It may be provided that at least one light guide projects beyond the frame when viewed perpendicularly to the thickness axis.

[0120] If a plurality of light guides are present, then, viewed in a direction perpendicular to the thickness axis, one of the light guides protrudes from the frame at each opposite side of the key shaft.

[0121] It is further preferably provided that the lighting device, in particular the lighting element, is arranged in the described free space which is surrounded by the frame; in particular, the lighting device is located on a printed circuit board of the key.

[0122] The light guide is preferably located at least partially in the described actuation section, which is designed to be flexible so that it can be pressed in in order to actuate a button of the key.

[0123] Particularly preferably, the previously described light guide is a first light guide, and a second light guide is additionally provided. The two light guides can also be combined in one component, so that ultimately a first light guide section and a second light guide section are involved. The first light guide is provided for emitting at a first wide side of the housing. The second light guide is provided for emitting at a second wide side of the housing.

[0124] In particular, it is proposed that light can be emitted by the light emitting device through the first light guide and the second light guide, in particular synchronously. For this purpose, the light emitting device can have a light emitting element which is fed into both light guides. Alternatively, the light emitting device can have two synchronously controlled light emitting elements (e.g. two LEDs), wherein each light emitting element is fed into one of the two light guides.

[0125] It is also preferred that the electronic device is designed to control the lighting device in order to display opposite information of mutually exclusive states by means of different modes, wherein the modes differ in particular in terms of flashing patterns and / or colors. Such mutually exclusive states are, for example, "communication connection active" and "communication connection inactive".

[0126] In particular, it is provided that the patterns for the two opposite information differ not only in the blinking pattern but also in the color, so that a color-blind person can recognize the two mutually exclusive states solely on the basis of the blinking pattern.

[0127] Furthermore, it is preferably provided that the light intensity of the lighting device can be varied by electronic means as a function of the time of day and / or the ambient lighting.

[0128] The present invention also includes a device. The device comprises the key described and the electromechanical locking device described. Preferably, the locking device is configured to be arranged at a door of a building.

[0129] The key is particularly configured to be able to be inserted into the locking device with its key shaft and transmit torque to the locking device. In addition, it is preferably proposed here that at least one transmission element is configured to transmit current and / or data to the locking device.

[0130] Furthermore, the arrangement can include the described device, wherein the wireless communication module of the electronics of the key is designed for exchanging data with the device.

[0131] The present invention also includes an assembly method for use in manufacturing a key, in particular a key as described above. The assembly comprises at least the following steps:

[0132] a) Firstly, the electronic device and / or the electronic energy storage device of the key are enclosed by means of a housing. In particular, the electronic device and / or the energy storage device are arranged between a first housing part and a second housing part.

[0133] b) The housing, in particular a closed housing, is then fastened to the frame. As already described, the frame comprises at least one gripping region which forms the surface of the key handle for gripping by a user.

[0134] Preferably, in step b), the housing is arranged, in particular pushed onto the first frame part. Furthermore, the housing is arranged, in particular pushed onto the second frame part. Here, in particular, the two frame parts are also fastened to each other.

[0135] It is particularly preferably provided that when the housing is fastened to the frame, in particular the first frame part, the insertion element of the key shank is already located on the housing and is pushed into the key shank base body. BRIEF DESCRIPTION OF THE DRAWINGS

[0136] The present invention will now be described in detail based on embodiments. Here, it is shown:

[0137] Figure 1 A schematic illustration of a device according to the invention is shown, which has a locking device, a device and a key according to the invention according to one exemplary embodiment,

[0138] Figure 2 An exploded view of a key according to the invention according to an embodiment is shown,

[0139] Figure 3 A view showing the narrow side of a key according to the invention according to an embodiment,

[0140] Figure 4 A view showing the broad side of a key according to the invention according to an embodiment,

[0141] Figure 5 Shown in Figure 1 The section AA shown in

[0142] Figure 6 Shown in Figure 1 The cross section BB is shown in

[0143] Figure 7 Shown in Figure 1 The cross section CC represented in

[0144] Figure 8 shows details of a key according to the invention according to an embodiment,

[0145] Fig. 9 The electronic device and the light emitting device of the key according to the present invention are shown according to an embodiment.

[0146] Fig.10 The key according to the present invention according to the embodiment is shown in the assembled state.

[0147] Fig.11 The assembly method according to the present invention is shown, and

[0148] Fig.12 Different light patterns are shown for a key according to the invention according to an exemplary embodiment. DETAILED DESCRIPTION

[0149] According to the following Figures 1 to 10 The design of a key 1 according to an exemplary embodiment is explained in more detail. Reference is made here to all the figures unless otherwise mentioned.

[0150] Figure 1 Here, the key according to the invention is shown in an isometric view together with a locking device 101 and a device 103. The key 1 and the locking device 101 form an apparatus 100 according to the invention. The apparatus 100 can also include the device 103. Furthermore, a key ring 102 can be provided on the key 1.

[0151] The locking device 101 is a lock cylinder with corresponding electronics, as explained in the general part of the description. The device 103 is a mobile device or a stationary terminal, as also explained in the general part of the description.

[0152] The key 1 comprises a key handle 2 and a key rod 50. The key rod 50 is used to be inserted into the locking device 101. If there is electronic access permission, the key 1 can rotate the lock cylinder 104. On the contrary, if there is no electronic access permission, the lock cylinder 104 cannot be rotated in the locking device housing 106. Here, the locking element (not shown) of the locking device 101 is prevented from leaving the connection position between the lock cylinder 104 and the locking device housing 106 by the electromechanical actuator (not shown) of the locking device 101. Therefore, the key 1 is also prevented from rotating in the locking device 101. Therefore, the key 1 is locked in rotation in the locking device 101.

[0153] If there is an electronic access authorization, the thumbwheel 105 designed as a locking projection can be rotated by means of the lock cylinder 104. For this purpose, an electromechanical actuator is already operated, which can realize the retraction of the locking element from the connection position. The building door can be unlocked via the thumbwheel 105.

[0154] The key handle 2 is formed by the housing 10 and the frame 30. The frame 30 forms a free space 44 open on both sides for arranging the housing 10 (see Fig.10 ). As soon as the housing 10 is mounted in the frame, the free space 44 in the frame 30 is filled by the housing 10. In a top view, the housing 10 is surrounded by the frame 30.

[0155] The electronic device 70 of the key 1 is located in the key handle 2, in the interior of the housing 10, and is therefore surrounded by the frame 30. The electronic device 70 has a circuit board 71, which is Fig. 9 Shown in detail.

[0156] also, Fig. 9 It is shown that an energy storage device for supplying power to the electronic device 70 and / or the locking device 101, in particular the actuator of the electronic device and / or the locking device 101, is provided inside the key 2. The energy storage device 85 can be charged via the socket 74. The housing 10 surrounds the energy storage device 85. It is also conceivable to transmit data via the socket 74. A cable connection to the electronic device 70 can be established via the socket 74.

[0157] The frame 30 of the key handle 2 is formed by a first frame part 31 and a second frame part 32 .

[0158] The first frame part 31 has a front section 33. The key rod 50, in particular the key rod base body 51, is located at the front section 33. The key rod base body 51 is formed integrally with the first frame part 31, for example, cast together from metal. This achieves a rigid connection according to the invention between the frame 30 and the key rod 50.

[0159] For the purpose of defining the invention, the term " Figure 3 and Figure 4The axes and sides are shown in FIG. Accordingly, the key shank 50 extends along the longitudinal axis 90. The thickness axis 91 and the width axis 92 are perpendicular to the longitudinal axis 90. The key handle 2 has two opposite wide sides 93. The two wide sides 93 intersect the thickness axis 91. In addition, the key handle 2 has two opposite narrow sides 94. The narrow side 94 intersects the width axis 92.

[0160] The key shank 50 is located at the front side 95 of the key handle 2. The rear side 96 is opposite to the front side 95. A key chain opening 14 for a key ring 102 can be located at the rear side 96. The front side 95 and the rear side 96 intersect the longitudinal axis 90. In this case, both the frame 30 and the housing 10 are adjacent to the key chain opening 14.

[0161] A frame thickness 97 of the frame 30 is defined parallel to the thickness axis 91. In the exemplary embodiment shown, the frame 30 has a constant frame thickness 97 at every location. The frame thickness is preferably at least 3 mm, so that sufficient stability is ensured.

[0162] also, Figure 3 The illustration in shows that the housing 10 projects beyond the frame 30 on two sides, namely on both broad sides 93 , when viewed along the longitudinal axis 90 or the width axis 92 .

[0163] Figure 4 The top view in FIG. 1 shows a view along the thickness axis 91. It can be seen that the frame 30 protrudes from the housing 10 along the longitudinal axis 90 and along the width axis 92, that is, over the entire circumference. The frame 30 is thus formed circumferentially at the surface of the key handle 2. Here, the frame 30 is formed open in the direction of the thickness axis 91. The broad side 93 of the key handle 2, more precisely the surface of the broad side 93, is thus formed by the housing 10 and the frame 30.

[0164] The housing 10 forms the surface of the key shank 2 at the opposite broad side 93 which intersects the thickness axis 91 .

[0165] The housing 10 consists of a first housing part 11 and a second housing part 12. Each housing part 11, 12 has a rail receptacle 13. The corresponding rails 43 of the frame 30 are introduced into the rail receptacles 13, so that the two housing parts 11, 12 are arranged on each other and the housing 10 is sealed.

[0166] Figure 2 The exploded view in shows that a seal 28 can be inserted between the two housing parts 11, 12. Alternatively, the seal 28 can also be a component of one of the two housing parts 11, 12, for example by a two-component injection molding method.

[0167] The front leg 34 of the first frame part 31 extends from the front section 33 toward the rear side 96. Thus, the first frame part 31 together with the key rod base body 51 forms a fork shape.

[0168] The second frame part 32 is of U-shaped design and comprises a rear section 35 which is parallel to the front section 33 . Parallel rear legs 36 extend from the rear section 35 toward the front side 95 .

[0169] The two frame parts 31, 32 are connected to one another via connecting points 37. Each connecting point 37 has a locking projection 38 and an associated locking counterpoint 39. The two frame parts 31, 32 are connected to one another in a form-fitting manner via the connecting points 37. The connecting points are spaced apart from the longitudinal axis 90.

[0170] The frame 30 , in the illustrated exemplary embodiment the second frame part 32 , has a frame socket opening 41 , through which the socket 74 is accessible.

[0171] In the housing 10 , in particular in the second housing part 12 , there is a housing socket opening 15 for the socket 74 .

[0172] The frame 30 has a gripping region 40 on each of the two narrow sides 94. The two gripping regions 40 each form a surface of the key handle 2 that can be gripped by a user in order to thereby turn the key 1 into the locking device 101. The torque can be directly transmitted to the key shaft 50 via the gripping regions 40 located directly on the frame 30. No undesired loading of the housing 10 occurs in this case.

[0173] According to the invention, the grip region 40 is therefore rigidly connected to the key shank 50 . This allows very good torque transmission from the user to the locking device 101 , in particular to the lock cylinder 104 and the dial 106 .

[0174] In the exemplary embodiment shown, the two gripping regions 40 extend parallel to and spaced apart from the longitudinal axis 90. In particular, the two gripping regions 40 are formed by two front legs 34 and two rear legs 36. The gripping regions 40 are separated from one another by a rear section 35 and a front section 33.

[0175] The two gripping regions 40 extend over the entire length of the key shaft 2 .

[0176] For example, Figure 5 The section AA in FIG. 1 shows the button projection 17 on the inner side of the first housing part 11. The button projection 17 can be pressed onto the associated button 73. To this end, the user presses the two housing parts 11, 12 against each other.

[0177] The key handle 2 has a relatively large actuating section 16 which is flexibly designed so that it can be pressed in by a user in order to actuate the button 73. The user does not have to search for a specific small spot on the key handle 2 in order to actuate the button 73, but can instead press on the relatively large actuating section 16.

[0178] For example, Figure 1 and Figure 4 The illustration in FIG. 1 shows that a relatively large surface of the first housing part 11 is formed as an actuating section 16 . The actuating section 16 is surrounded by a supporting section 18 . Any area of ​​the first housing part 11 that does not form an actuating section 16 is to be associated with the supporting section 18 .

[0179] In particular, the first housing part 11 has a flat end face 29 at one of the two broad sides 93. The flat end face 29 is formed for the most part by the actuation section 16. At least one rear portion of the flat end face 29 is designed as a support section 18. Furthermore, the first housing part 11 comprises an edge section 20, which extends around the flat end face 29. The edge section 20 is also a component of the support section 18.

[0180] In order to achieve a correspondingly flexible design of the actuation section 16, the flat end face 29 can have different wall thicknesses. Figure 6 The illustration in shows that a thin first wall thickness 21 and a thicker second wall thickness 22 are provided in the region of the end face 29. In the illustrated embodiment, the two wall thicknesses 21, 22 transition into one another with a shoulder 19. Alternatively, multiple shoulders or a continuous change in wall thickness can also be provided here.

[0181] In order to prevent the two housing parts 11, 12 from being pressed too far or too strongly against each other when the button 73 is actuated, a support column is provided, which is formed by a first support column part 23 on the inner side of the first housing part 11 and a second support column part 24 on the inner side of the second housing part 12. When the actuation section 16 is pressed in, the two support column parts 23, 24 come into contact with each other to form a support column.

[0182] For example Figure 8 It is shown that the first housing part 11 has a receiving groove 25 for inserting an insert element 54 . This makes it possible to arrange the insert element 54 on the housing 10 .

[0183] Furthermore, the housing 10 has a first light guide 26 on one broad side 93 and a second light guide 27 on the opposite broad side 93. The two light guides 26, 27 are each provided for emitting light at the associated broad side 93 and over the frame 30 toward the key shank 50. For this purpose, the light guides 26, 27 protrude from the frame 30.

[0184] As already described, the key shank 50 comprises a key shank base 51, which is an integral component of the first frame part 31. The key shank base 51 has two shank legs 52 spaced apart from each other and a shank leg connecting piece 53. The shank leg connecting piece 53 connects the two shank legs 52 to each other at the front end of the key 1.

[0185] Furthermore, the key shank 50 comprises an insert element 54, which is made in particular of plastic. The insert element 54 is inserted between the two shank legs 52. Figure 7 The sectional illustration CC in FIG. 5 shows that the insertion element 54 is located between the two lever legs 52 and is connected to the two lever legs 52 via a tongue-and-groove connection 58 .

[0186] The transmission element 55 extends inside the insertion element 54. Since the key 1 is designed as a reversible key, two of the transmission elements 55 are provided. For this purpose, the transmission elements 55 are arranged symmetrically in the key shaft 50.

[0187] In the region of the key shaft 50 , the two transmission elements 55 each have a locking device contact surface 56 . The respective locking device contact surface 56 is exposed on the surface of the key shaft 50 and can be used to transmit data and / or energy to the locking device 101 .

[0188] Inside the key handle 2 , the transmission elements 55 each have a circuit board contact surface 57 in order to connect the two transmission elements 55 to a circuit board 71 in an electrically conductive manner.

[0189] The already described button 73 is located on the printed circuit board 71 and can be pressed by the actuation section 16 , in particular via the button projection 17 .

[0190] Furthermore, a socket 74 is situated on the printed circuit board 71 , which socket is designed here as a USB-C socket.

[0191] The post recess 72 is here arranged as a hole relatively close to the button 73. The support post formed by the two support post parts 23, 24 projects through the post recess 72.

[0192] A wireless communication module 78 is located on the circuit board 71 and is designed for near field communication with the device 103 .

[0193] also, Fig. 9It is shown that a light emitting device 75 is arranged on the circuit board 71. In the embodiment shown, the light emitting device 75 comprises a first light emitting element 76 in the form of an LED on one side of the circuit board 71 and a second light emitting element 77 in the form of an LED on the opposite side of the circuit board 71. The first light emitting element 76 is provided for feeding light into the first light guide 26. The second light emitting element 77 is provided for feeding light into the second light guide 27. In particular, the two light emitting elements are synchronously controlled so that the two light emitting elements emit the same pattern.

[0194] The two lighting elements 76 , 77 are in particular LEDs which can emit light in multiple colors. The electronic device 70 is also designed to actuate a lighting device 75 , ie, the two lighting elements 76 , 77 , for illuminating at least one item of information.

[0195] Fig.12 The patterns in terms of light color, intensity and flashing pattern for different trigger events are shown by way of example. Thus, for example, when the key 73 is pressed 301, a blue light (b) with a flashing pattern of "long", "short", "short" can be emitted. Here, the signal "long" indicates that a connection is established, and the signal "short", "short" indicates an existing connection.

[0196] When the charging cable is connected 304 to the socket 74, for example, white light (w) can be emitted, wherein the light intensity and duration of the individual light signals can increase over time. An interrupted pattern can represent the charging process, while a continuous light emission can represent the completion of charging.

[0197] When the key 1 is removed 303 from the locking device 101, for example, two blue light (b) flashes and one red light (r) flash can occur, wherein the two blue light signals are short and the red light signal is long. In this case, the blue light signal indicates a connection to the device 103. The red light signal indicates a fault.

[0198] For example, two different modes are provided to represent a combination of information when the key 1 is inserted 302 into the locking device 101. In the combination "white" (w) "green" (g), "white" represents a low charge state of the energy storage device, and "green" represents access rights. In the combination "white-red-red", "white" represents a low charge state of the energy storage device, and "red-red" represents that access rights are denied. If the energy storage device is fully charged, the key only transmits the mode "green" when access is allowed, and "red-red" when access is denied.

[0199] Fig.10The state during the assembly of the key 1 according to the invention is shown. Thereby, the two housing parts 11, 12 are first placed on each other. Here, the electronic device 70, in particular also the energy storage device 85, is already located between the two housing parts 11, 12. In addition, the insertion element 54 is inserted between the two housing parts 11, 12.

[0200] In order to press the two housing parts 11, 12 firmly against each other and in particular compress the seal 28, the described guide rail receptacles 13 are provided in the two housing parts 11, 12, which are pushed into the associated guide rails 43 of the two frame parts 31, 32. The two frame parts 31, 32 can be pushed onto the housing 10 simultaneously or successively.

[0201] During the assembly process, the insert element 54 which is already connected to the housing 10 is inserted through the insert element aperture 42 in the first frame part 31 and is thus introduced between the two lever legs 52 .

[0202] Fig.11 The assembly method 200 for the exemplary embodiment is shown. In this case, first in assembly method step a), the electronic device 70 and the energy storage device 85 are surrounded by the housing 10. Subsequently, in assembly method step b) 202, the housing 10 is fastened to the frame 30. The fastening can be performed without bending the housing 10 or the circuit board 71.

[0203] In assembly method step b) 202, the guide rail receptacle 13 with the guide rail 43 of the first frame element 31 is pushed into one another and at the same time the insertion element 54 is pushed into the key shank base 51. The second frame element 32 is then pushed onto the housing 10, wherein the guide rail 43 of the second frame element 32 engages in the guide rail receptacle 13 of the housing 10. At the end of the pushing movement, the second frame element 32 is fastened to the first frame element 31 by means of the locking connections 38, 39.

[0204] Reference numerals list

[0205] 1 Key

[0206] 2 Key handle

[0207] 10 Shell

[0208] 11 first housing member

[0209] 12 second housing member

[0210] 13 rail accommodating portion

[0211] 14 Keychain-Piercing

[0212] 15 Shell-socket opening

[0213] 16 control sections

[0214] 17 key protrusion

[0215] 18 Support Sections

[0216] 19 shoulder

[0217] 20 edge segments

[0218] 21 First wall thickness

[0219] 22 Second wall thickness

[0220] 23 first support column component

[0221] 24 second support column component

[0222] 25 storage slots

[0223] 26 First Light Guide

[0224] 27 Second Light Guide

[0225] 28 Seals

[0226] 29 Flat end face

[0227] 30 frames

[0228] 31 First frame piece

[0229] 32 Second frame piece

[0230] 33 front section

[0231] 34 front outrigger

[0232] 35 rear section

[0233] 36 rear outriggers

[0234] 37 Connection parts

[0235] 38 locking protrusion

[0236] 39 Lock the matching part

[0237] 40 grip areas

[0238] 41 frame-socket opening

[0239] 42 Insertion Components - Through Mouth

[0240] 43 rails

[0241] 44 Free Space

[0242] 50 key rod

[0243] 51 key rod-base

[0244] 52 rod outriggers

[0245] 53 rod outrigger-connector

[0246] 54 Insert components

[0247] 55 Transmission elements

[0248] 56 Locking device - contact surface

[0249] 57 Circuit board - contact surface

[0250] 58 slot-tenon connector

[0251] 70 Electronic devices

[0252] 71 Circuit Board

[0253] 72 columns - blank space

[0254] 73 keys

[0255] 74 sockets

[0256] 75 Lighting Equipment

[0257] 76 first light emitting element (LED)

[0258] 77 second light emitting element (LED)

[0259] 78 wireless communication module

[0260] 85 Energy storage device

[0261] 90 vertical axis

[0262] 91 thickness axis

[0263] 92 Width axis

[0264] 93 wide side

[0265] 94 narrow side

[0266] 95 front side

[0267] 96 rear side

[0268] 97 frame thickness

[0269] 100 Installations

[0270] 101 Locking device

[0271] 102 key ring

[0272] 103 Equipment

[0273] 104 Lock cylinder

[0274] 105 Wheel

[0275] 106 Locking device housing

[0276] 200 Assembly method

[0277] 201 Assembly method step a

[0278] 202 Assembly method step b

[0279] 301 Press as trigger event

[0280] 302 Insert as a trigger event

[0281] 303 Unplug as trigger event

[0282] 304 as the connection triggering the event

Claims

1. A key (1) for an electromechanical locking device (101), wherein a longitudinal axis (90), a width axis (92) and a thickness axis (91) are respectively defined perpendicularly to one another, The key has a key handle (2) and a key stem (50) protruding from the key handle (2) along the longitudinal axis (90), The key rod is used to be inserted into the locking device (101), wherein the key handle (2) comprises an electrical energy storage device (85) and / or an electronic device (70), wherein the key handle (2) comprises a frame (30), the energy storage device (85) and / or the electronic device (70) being accommodated in the frame, wherein the frame (30) is rigidly connected to the key rod (50), and wherein the frame (30) comprises at least one gripping area (40) forming a surface of the key handle (2) for gripping by a user.

2. The key (1) according to claim 1, The key rod (50) comprises a key rod-base (51), wherein the frame (30) is integrally connected to the key rod-base (51).

3. The key (1) according to claim 1 or 2, wherein the frame (30) is made of metal.

4. A key (1) according to any one of the above claims, wherein the frame (30) comprises at least a first frame part (31) and a second frame part (32), wherein the first and second frame parts (31, 32) are connected to each other in a force-fitting and / or form-fitting manner at a connection point (37), preferably at at least two connection points (37), wherein the key rod (50) comprises an insertion element (54), wherein the insertion element (54) is fastened to the key rod-base (51) in a force-fitting and / or form-fitting manner.

5. A key according to any one of the preceding claims, wherein the key handle comprises a shell (10), wherein the shell (10) is accommodated by the frame (30), and wherein the shell (10) forms a surface of the key handle (2) at opposite wide sides (93) intersecting the thickness axis (91).

6. The key (1) according to any one of the preceding claims, wherein the frame (30) extends around the thickness axis (91) and wherein the frame (30) forms a free space open on both sides for arranging the housing (10).

7. A key (1) according to claim 5 or 6, wherein the housing (10) surrounds the electronic device (70) and / or the energy storage device (85), wherein the frame (30) includes a first housing part (11) and a second housing part (12), wherein the frame (30) includes at least one guide rail (43), wherein the at least one guide rail (43) is configured to arrange the first housing part (11) and the second housing part (12) at each other.

8. The key (1) according to claims 4 and 7, wherein the insertion element (54) is arranged on at least one of the housing parts (11, 12), wherein the insertion element (54) includes at least one transmission element (55) for transmitting electrical energy and / or electronic data to the locking device (101).

9. A key (1) according to claim 7 or 8, wherein the key (1) comprises a socket (74) for charging the energy storage device (85) and / or for connecting to a cable of the electronic device (70), wherein the frame (30) comprises a frame-socket opening (41) for the socket (74).

10. The key (1) according to claim 9, wherein one of the housing parts (11, 12) comprises a surrounding housing-socket opening (15) for the socket (74).

11. The key (1) according to claim 9 or 10, wherein the electronic device (70) comprises a circuit board, and the socket (74) is arranged at the circuit board.

12. A key (1) according to any of the above claims, wherein the key rod (50) includes at least two transmission elements of the transmission element (55) for transmitting electrical energy and / or electronic data to the locking device (101), wherein the transmission element (55) is symmetrically arranged for bidirectional key-type usability.

13. The key (1) according to any one of the preceding claims, wherein the housing (10) protrudes beyond the frame (30) on both sides along the thickness axis (91).

14. A key (1) according to any one of claims 5 to 13, wherein the key handle (2) comprises at least one light-emitting device (75), which in particular has at least one light-emitting element (76, 77), and the housing (10) comprises at least one light guide (26, 27), wherein the at least one light guide (26, 27) protrudes from the frame (30) when viewed perpendicularly to the thickness axis (91).

15. The key (1) according to any one of claims 5 to 14, wherein a keychain opening (14) for fastening the key (1) to a keychain is formed between the frame (30) and the housing (10).

16. An assembly method (200) for assembling a key (1), in particular a key (1) according to any one of the preceding claims, wherein the key (1) comprises a key handle (2) and a key stem (50), the key stem being rigidly connected to the key handle (2), wherein the key handle comprises a housing (10), wherein the housing (10) is accommodated by a frame (30), and wherein the housing (10) forms a surface of the key handle (2) at opposite broad sides (93) intersecting the thickness axis (91), wherein the assembly comprises at least the following steps: a. enclosing the electronic device (70) and / or the electrical energy storage device (85) of the key (1) by means of the housing (10), and b. Fastening the housing (10) to a frame (30), wherein the frame (30) comprises at least one gripping area (40) forming a surface of the key handle (2) for gripping by a user.

17. The assembly method (200) according to claim 16, In step b, the housing (10) is arranged, in particular pushed, onto a first frame part (31) and a second frame part (32), and the two frame parts (31, 32) are fastened to one another.

18. An assembly method according to claim 16 or 17, wherein when the housing (10) is fastened to the frame (30), in particular the first frame part (31), the insertion element (54) of the key rod (50) is pushed into the key rod base (51).

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