KEY FOR AN ELECTROMETAL LOCKING DEVICE

Description

[0001] The invention relates to a key for an electromechanical locking device. Furthermore, the invention discloses an assembly method for mounting the key.

[0002] EP 1 899 924 B1 discloses a previously known key for an electromechanical locking device. The previously known key comprises a key bow on which electronics are arranged between two housing shells. A key shaft extends from the key bow for insertion into a locking device. An electrical contact is located on the key shaft. EP 1 327 734 A1 discloses a previously known key with a housing, wherein one side of the housing forms a surface of the key bow.

[0003] The object of the present invention is to provide a key for an electromechanical locking device which has sufficient strength to transmit torque to the locking device, is easy to install, and / or ensures comfortable and safe use.

[0004] The problem is solved by the features of claim 1. Advantageous embodiments of the key are specified in the dependent apparatus claims, the description, and the figures. Furthermore, the invention is also solved by the features of the method claim according to independent claim 11. Advantageous embodiments of the method are specified in the dependent method claims, the description, and the figures. Features and details described in connection with the key according to the invention also apply in connection with the method according to the invention, and vice versa. In particular, a key that is manufactured or manufacturable by the method according to the invention, as well as a method for manufacturing the key according to the invention as specified in the claims, the description, and the figures, is protected.

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

[0006] The electromechanical locking device is preferably a lock cylinder, in particular a double or half cylinder, a furniture cylinder, a padlock, or a similar device into which the key can be inserted. In particular, the key and the locking device are designed such that turning the key transmits a torque to the locking device to move a driver, in particular a locking cam. Turning the driver unlocks or locks a locking element, in particular a building door or cabinet door. In particular, the locking device includes a corresponding electronic device arranged within the locking device, which selectively locks and unlocks the key's rotation in the locking device depending on an electrical signal transmitted by the key.Alternatively, the signal transmitted by the key can enable a mechanical coupling between a cylinder core and the drive mechanism. The electronic device preferably comprises a circuit board.

[0007] The key has a key bow. A key shaft extends from this key bow. This key shaft is designed for insertion into the locking device and, in particular, for transmitting torque to the locking device.

[0008] For further definition of the invention, the following imaginary axes and sides are preferably defined: The key has a longitudinal axis. The longitudinal axis extends, in particular, along the key shaft. Accordingly, the key is inserted into and withdrawn from the locking device along the longitudinal axis. Furthermore, the key has a width axis and a thickness axis. The longitudinal axis, the width axis, and the thickness axis are each perpendicular to one another.

[0009] Preferably, the key has two broad sides defined. These two broad sides are preferably opposite each other. The thickness axis intersects each of the two broad sides. Particularly preferably, at least one of the two broad sides has an end surface. The end surface is particularly flat. Particularly preferably, each broad side has an end surface. One, or preferably both, end surfaces are preferably perpendicular to the thickness axis.

[0010] Furthermore, the key bow preferably has two opposite narrow sides. The narrow sides are preferably perpendicular to the broad sides. Preferably, each narrow side is intersected by the broad axis. The narrow sides are preferably each smaller than the broad sides.

[0011] Furthermore, it is preferably provided that the key shaft extends from a front side of the key bow along the longitudinal axis. Opposite this front side is a rear side of the key bow. Preferably, the rear side has a key ring through-hole for attaching the key to a key ring. Preferably, the front and rear sides are intersected by the longitudinal axis.

[0012] The key bow includes an electrical energy storage device and / or electronics. The energy storage device is specifically designed to power the electronics within the key. Additionally or alternatively, the energy storage device can be used to power the locking mechanism as long as the key is inserted into the locking mechanism. The electronics preferably include a light source, which will be described in detail later.

[0013] Furthermore, it is preferably provided that the electronics include a wireless communication module for wirelessly transmitting and / or receiving signals. This wireless communication module allows the key to communicate with a device. In particular, this is a wireless communication module designed for short-range communication, for example via Bluetooth or ultra-wideband.

[0014] The device in question is primarily a mobile device, such as a smartphone, tablet, or laptop. Alternatively, it can also be a stationary device, such as a terminal used for door and / or building control.

[0015] Furthermore, the electronics are preferably configured to communicate with the locking device. As will be described in detail below, the key preferably has at least one transmission element for this purpose. The transmission element establishes a communicative connection between the electronics on the key side and an electronic device on the locking device side as long as the key is inserted into the locking device.

[0016] The transmission element can be used to send electronic data that allows the electronic device to determine a user's authorization to unlock. For example, the transmission element can send an authorization code and / or an authorization time window, which is verified by the electronic device. Alternatively, the electronic device can receive an unlock command.

[0017] Communication can, for example, take place via physical contact.

[0018] This allows the device to communicate with the locking mechanism via the key, provided the key is inserted into the locking mechanism. Communication can be direct, with the key immediately forwarding information from the sender (the device or the locking mechanism) to the receiver (the locking mechanism or the device). Alternatively, indirect, time-delayed communication is possible, in which the key stores the information and transmits it later.

[0019] The transmission element serves additionally or alternatively to transmit electrical energy to the locking device. This electrical energy can be used to enable unlocking by turning the key or engaging the drive mechanism, and / or it can be used for the electronic device.

[0020] Furthermore, according to the invention, the key bow comprises a frame. The energy storage device and / or the electronics are located within this frame. The energy storage device and / or the electronics are thus enclosed within the frame. For this purpose, a housing is used, which will be described in detail below.

[0021] The frame is made primarily of metal or plastic, especially fiber-reinforced plastic.

[0022] Preferably, the frame extends around the thickness axis or an axis parallel to the thickness axis. The frame is preferably closed and ring-shaped; however, the ring-shaped form does not restrict the geometric shape of the frame. The frame can, in particular, be rectangular or oval.

[0023] The frame, when viewed without the electronics, energy storage, and housing, encloses a cavity within the frame. This cavity is preferably open on both sides, and in particular, completely open. The electronics and / or the energy storage, along with the housing, are arranged within this cavity. Once the housing is mounted in the frame, the cavity is filled by the housing.

[0024] Furthermore, according to the invention, the key shaft is rigidly connected to the frame. The frame is composed of a first frame part and a second frame part. The key shaft is preferably rigidly arranged on the first frame part.

[0025] This rigid arrangement means, in particular, that the key shaft is immobile relative to the frame. It is therefore preferably designed so that the key shaft cannot be folded relative to the frame or removed from it. This allows for a relatively stable transmission of torque from the frame to the key shaft and thus to the locking mechanism.

[0026] Furthermore, according to the invention, the frame comprises at least one gripping area that forms a surface of the key bow for gripping by a user. This allows the user to directly grip the frame – not just the housing – and thus directly transmit the required torque to the frame. In particular, the entire gripping area has a surface of the key bow for gripping by a user.

[0027] Through the combination according to the invention, by means of the rigid connection of the handle area of ​​the frame with the key shaft, the torque transmission from the key to the locking device, in particular a cylinder core of the locking device, can have sufficient strength, so that the operation is safe and comfortable for the user.

[0028] The term "surface" refers in particular to an area of ​​the frame that is exposed and can therefore be touched by the user's fingers or hand.

[0029] In particular, the frame has at least two opposing grip areas, each spaced away from the longitudinal axis, so that the torque can be transmitted with a suitable lever. Preferably, the key bow can be gripped such that it is located between two of the user's fingers, with each finger resting on one of the two opposing grip areas.

[0030] It is particularly preferred that the frame is formed around the entire surface of the key bow. The frame is preferably completely circumferential, i.e., in a closed ring shape, and is located along the entire circumference on the surface of the key bow.

[0031] Preferably, when viewed along the width axis (i.e., when viewed along the narrow side), at least one gripping area extends over the entire length of the key bow defined parallel to the longitudinal axis. This means the gripping area preferably extends from the front to the back of the key bow.

[0032] Preferably, only that surface of the frame which is spaced away from the longitudinal axis is considered the gripping area, so that torque can be transmitted over the entire gripping area. Thus, the gripping area can be designed to be spaced away from the longitudinal axis.

[0033] Particularly preferred is at least one grip area, a section of the frame which itself or whose tangent runs parallel or not at 90° to the longitudinal axis.

[0034] Preferably, at least one grip area includes the point of the key furthest from the longitudinal axis.

[0035] Furthermore, it is preferably provided that at least one grip area does not intersect the longitudinal axis.

[0036] As described, it is preferably provided that the frame includes opposing grip areas. Both grip areas preferably intersect in the same plane perpendicular to the thickness axis.

[0037] Furthermore, it is preferably provided that the frame is essentially rectangular or oval. In the case of a rectangular shape, preferably parallel sides of the rectangular shape are parallel to and spaced apart from the longitudinal axis. These two sides form the two opposing handle areas.

[0038] Furthermore, it is preferably provided that the frame has a thickness of at least 3 mm, and in particular at least 5 mm, parallel to the thickness axis. This provides a sufficient surface area that can be touched, and in particular gripped, by the user.

[0039] As described, the frame consists of a first frame part and a second frame part. This allows the electronics and / or energy storage unit, especially along with its housing, to be easily inserted into the frame. The first and second frame parts are designed to be separate from each other, at least during key assembly.

[0040] According to the invention, the first and second frame parts are connected at at least one connection point by force-fit, positive-fit, and / or material-fit. Preferably, the first and second frame parts are connected to each other by force-fit and / or positive-fit, so that even when the key is assembled, the first and second frame parts are formed separately from each other.

[0041] In particular, at least two opposing connection points are provided. Preferably, each connection point has at least one locking lug that engages in a corresponding locking counterpart. The at least one connection point, preferably the at least two connection points, is / are preferably spaced from the longitudinal axis. In particular, there is one connection point in each grip area.

[0042] Furthermore, it is preferably provided that at least one connection point, in particular the two connection points, is / are located in the front half of the key bow facing the key shaft.

[0043] According to the invention, the key shaft comprises a key shaft base body. The frame, in particular the first frame part, is preferably integrally connected to the key shaft base body.

[0044] Particularly preferred is the frame, especially the first frame part, manufactured monolithically with the key shaft body. This monolithic manufacturing means, in particular, that the frame, especially the first frame part, and the key shaft body are formed together; for example, cast from metal or injection molded from plastic.

[0045] The key shaft body preferably extends over at least half the length of the key shaft; more preferably over the entire length of the key shaft. This ensures that a substantial portion of the key shaft body can be inserted into the locking device and that the torque can be reliably transmitted. The length of the key shaft is defined coaxially or parallel to the longitudinal axis. Preferably, the first frame part and the key shaft body are jointly designed in a forked shape. This describes, 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, either directly or with a tangent to it. The two front legs are, in particular, spaced apart from the longitudinal axis. Specifically, the two front legs each form part of the two opposing grip areas.Preferably, the key shaft base body extends centrally between the two front legs from the front section of the first frame part. The key shaft base body extends in one direction, and the two front legs extend in the opposite direction.

[0046] As already mentioned, the key bow according to the invention comprises a housing. The housing preferably comprises a first housing part and a second housing part.

[0047] The casing can be made of plastic.

[0048] According to the invention, the housing is surrounded by the frame. The housing is thus arranged within the frame. In particular, the housing is received in the frame and thus secured within the frame. Preferably, the frame completely encloses the housing – optionally with the exception of a possible key ring opening that may be formed between the housing and the frame.

[0049] The housing contains the electronics and / or the energy storage device. The housing encloses the electronics and / or the energy storage device, particularly tightly. The space for the electronics and / or the energy storage device is formed, in particular, between the first and second housing sections.

[0050] According to the invention, the housing forms a surface of the key bow on each of the two opposite broad sides - i.e., a surface that can be touched by the user.

[0051] Preferably, the housing is designed to project beyond the frame along the thickness axis at least on one side, preferably on both sides.

[0052] Preferably, the frame is provided to extend beyond the housing along the longitudinal axis and / or along the lateral axis.

[0053] The frame, and in particular each frame part, preferably comprises at least one rail. The respective rail is specifically designed to arrange the first housing part and the second housing part relative to each other.

[0054] In particular, the frame contains at least two rails. The rails can be arranged parallel to each other.

[0055] Each housing component can have a corresponding rail receptacle. By sliding the frame-side rails and the housing-side rail receptacles into one another, the two housing components can be positioned and fixed relative to each other and relative to the frame.

[0056] The rail receptacle can be designed as a groove and the rail as a complementary extension (also called a protrusion) that fits into the groove. Conversely, the rail can also be designed as a groove and the rail receptacle as a complementary extension (also called a protrusion) that fits into the groove.

[0057] A seal is preferably arranged between the two housing parts. In particular, the at least one rail or rails in the frame are designed to press the two housing parts together and thereby compress the seal.

[0058] Furthermore, it is preferably provided that the first housing part on the first broad side and the second housing part on the opposite second broad side form at least a partial surface of the key bow.

[0059] Preferably, the key shaft comprises at least the transmission element for transmitting electrical energy (also: current) and / or electronic data to the locking device. This at least one transmission element is, for example, a metal sheet, a wire, or a printed circuit board.

[0060] Particularly preferably, at least two of the transmission elements are provided, wherein the transmission elements are arranged symmetrically to allow the key to be used as a reversible key. Furthermore, the geometry of the key shaft is preferably also selected such that the key can be used as a reversible key. In particular, for reversible key use, the key shaft is designed to be symmetrical with respect to a plane in which the longitudinal axis lies.

[0061] The at least one transmission element preferably extends from the electronics to the key shaft.

[0062] Inside the key bow, the transmission element preferably has a printed circuit board contact surface. The transmission element can be electrically connected to a printed circuit board of the electronics via this contact surface.

[0063] In the area of ​​the key shaft, the transmission element preferably has a locking device contact surface that is exposed and - when the key is inserted into the locking device - can be electrically connected to the electronic device on the locking device side.

[0064] According to the invention, the key shaft comprises an insert element. This insert element is preferably made of plastic.

[0065] 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. This receiving groove is covered by the other housing part, so that the insert element is arranged, in particular clamped, between the two housing parts.

[0066] According to the invention, the insert element is attached to the key shaft body by means of a force-fit and / or form-fit connection. A tongue-and-groove connection between the insert element and the key shaft body is particularly preferred.

[0067] The key shaft body preferably has parallel, spaced-apart shaft legs. The insert element can be inserted between the shaft legs. In particular, the insert element is connected to at least one of the shaft legs via a tongue-and-groove joint. At the front end of the key shaft, the shaft legs can be connected to each other via a shaft leg joint. The insert element need not extend to the very front end of the key shaft body.

[0068] The frame, particularly the front section of the first frame part, preferably has an insert element through-opening through which the insert element can be inserted from the inside of the frame to the outside into the key shaft.

[0069] The insert element preferably comprises the at least one transmission element. In particular, the at least one transmission element is embedded in the insert element.

[0070] The key preferably includes a socket, in particular configured as a USB-C connector. The socket is designed for charging the energy storage device and / or for connecting it to the electronics via a cable. The electronics particularly preferably comprise a circuit board on which the socket is mounted.

[0071] The frame, in particular the second frame part, preferably has a frame socket opening. The socket for a corresponding plug is accessible through this frame socket opening.

[0072] The socket itself does not need to extend into the frame socket opening. Rather, it is preferred that the socket does not extend into the frame socket opening, but is merely arranged in the housing.

[0073] Preferably, one of the two housing parts has a surrounding housing socket opening for the socket. This surrounding housing socket opening is preferably completely closed, so that the socket is fully enclosed by only one of the two housing parts. This simplifies the sealing of the two housing parts and the sealing to the socket.

[0074] As mentioned, the key may include a key ring pass-through opening for attaching the key to a key ring, in particular for receiving a key ring. This key ring pass-through opening is located, in particular, between the frame and the housing, preferably on the back of the key bow.

[0075] Preferably, the rear side and / or the area of ​​the frame that abuts the key ring opening separates the grip areas from each other. The rear side and / or the area of ​​the frame that abuts the key ring opening is preferably defined outside the grip area.

[0076] Preferably, the key has a push button on or in the key bow. Particularly preferably, the key bow comprises only a single push button. The push button is preferably located on the circuit board and thus inside the described housing. In particular, only a single push button is provided, so that the user does not have a choice between several push buttons, but can only press this one.

[0077] To activate the button, the housing preferably has an actuation section. This actuation section can be pressed by the user. In particular, the user presses the actuation section on one broad side and supports the key bow with an opposite finger or hand on the opposite broad side.

[0078] In addition to the actuation section, the housing preferably includes a support section. Specifically, any area of ​​the housing that is not an actuation section – i.e., cannot be flexibly pressed against the button by the user – is the "support section" of the housing.

[0079] Furthermore, it is preferably provided that the button can be actuated by pressing the first and second housing parts against each other. In particular, the two opposite broad sides of the key bow are pressed against each other.

[0080] Preferably, the actuating section and the support section are formed as a single piece. Particularly preferably, the actuating section and the support section are formed monolithically, preferably as a single injection-molded part, and especially preferably as a single-component injection-molded part. Particularly preferably, the first housing part comprises the actuating section, which is surrounded by the support section. For this purpose, the first housing part is particularly monolithic.

[0081] As already described, the housing preferably forms an end surface, in particular a flat end surface, for the key bow on at least one broad side. The actuating section is preferably located in this end surface. Part of the end surface can also be formed by the support section. The end surface is preferably surrounded, in particular completely surrounded, by an edge section of the first housing part. This edge section particularly features the described rail receptacle, which provides the connection to the frame.

[0082] Preferably, the actuating section comprises at least 20%, more preferably at least 25%, and most preferably at least 30% of the width of the side. This is the side on which the actuating section is located, i.e., the side that can be pressed to press the button.

[0083] Additionally or alternatively, it is preferably provided that the actuation section comprises at least 30%, preferably at least 40%, and particularly preferably at least 50% of the extent of the described end surface.

[0084] The term "extent" refers in particular to the projected area perpendicular to the thickness axis, where either the area of ​​the entire key bow or the area of ​​the end face is decisive.

[0085] Preferably, the actuation section transitions into the support section within the described end surface.

[0086] Preferably, the actuating section and the support section differ, particularly in the area of ​​the end face, at least partially in the inward wall thickness of the housing. The transition from one wall thickness to the other can occur abruptly at a step, or the wall thickness can change continuously or in several steps.

[0087] The transition from one wall thickness to another does not necessarily have to occur at the junction of the actuating section and the support section. What is important is that the changing wall thickness allows for a sufficiently flexible housing design, so that the actuating section can be easily pressed inwards towards the button.

[0088] The change in wall thickness is particularly "internal", so that a flat end surface results on the outer surface of the key bow and the difference in wall thickness is not visible.

[0089] Furthermore, it is preferably provided that the support section, in particular a single piece, forms the housing on the narrow side of the key bow. Thus, when viewing the key along its longitudinal or transverse axis (i.e., when looking at the front, back, or narrow side), the frame section, and therefore at least part of the housing's support section, is visible – partially obscured by the surrounding frame.

[0090] The housing preferably has a support column to limit the travel of the actuating section when it is pressed. This support column prevents the actuating section from being pressed too hard onto the button. The support column is formed, in particular, by a first support column section and a separately formed second support column section. These two support column sections meet when the actuating section is pressed.

[0091] 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.

[0092] Preferably, the actuating section is formed in one piece, in particular monolithically, with one of the support column parts.

[0093] The circuit board preferably has a column recess. This can be a hole or a groove. The support column, for example at least one of its two sections, protrudes through this column recess. This allows the support column to be positioned relatively close to the button being protected.

[0094] In particular, the key's electronics are designed so that communication with the device, e.g., a smartphone, begins when the button is pressed. Specifically, the electronics send a corresponding signal via the wireless communication module after the button is pressed to establish communication with the device.

[0095] Furthermore, it is preferably provided that the electronics are designed so that inserting and / or removing the key shaft into / from the locking device causes the electronics to perform an action, for example to wake up the electronics and / or to establish communication with the device.

[0096] Furthermore, it is preferably provided that the key bow of the key includes a lighting device.

[0097] Preferably, the electronics for controlling the lighting device are designed to illuminate and display at least one piece of information. This information could, for example, be the state of the key. Furthermore, the information could relate to the locking mechanism if the key is inserted into it. Additionally, the information could relate to the wireless communication connection between the key and the device, such as a smartphone.

[0098] The light-emitting device in the key bow is designed to emit light in at least two colors. The light-emitting device preferably comprises at least one light-emitting element. This light-emitting element is preferably a single LED. The single light-emitting element is designed to emit at least two, preferably at least three, and most preferably at least four colors. For example, the light-emitting element is an RGB LED. This LED can, in principle, emit light in red, green, or blue and mix the colors, so that, for example, white light can also be produced.

[0099] Preferably, the electronics are designed to display different information by means of different patterns by controlling the lighting device.

[0100] Each "pattern" is characterized by its color, flashing pattern, and / or light intensity. Two different patterns therefore differ in color, flashing pattern, and / or light intensity.

[0101] It is preferably provided that the electronics are designed to display different information about the key by controlling the lighting device through different patterns.

[0102] Furthermore, it is preferably provided that the electronics are designed to display different information about the locking device by means of different patterns by controlling the lighting device.

[0103] As described, the key, in particular the wireless communication module of the electronics, is designed for wireless communication with the device. The electronics are preferably configured to indicate, by controlling the indicator light, whether a communication connection is being sought and / or whether a communication connection exists, via the indicator light, in particular the light element. This "searching for a communication connection" or the "existence of a communication connection" constitutes the "information" displayed via the indicator light.

[0104] As described, the key can include an electrical energy storage device. Preferably, the electronics are configured to display the charge level of the energy storage device by controlling the lighting device, in particular the lighting element.

[0105] The key preferably has an interface, for example the described socket, for charging the energy storage device. The electronics are preferably configured to indicate a charging process and / or the termination of the charging process by controlling the light source, in particular the light element. It is particularly preferred that the indication is limited to the time during which the interface is connected to a power source.

[0106] Furthermore, it is preferably provided that the electronics are configured to indicate at least one of the following faults by controlling the lighting device, in particular the lighting element: The fault may be a defective locking device. For example, the key can output a corresponding signal via the lighting device that prompts the user to check on the device (e.g., smartphone) to see what the specific fault is.

[0107] Similarly, a faulty key and / or disrupted communication with the device may be indicated.

[0108] Furthermore, it is preferably provided that the electronics are configured to control the lighting device, in particular the lighting element, for the luminous display of at least one piece of information after a triggering event. The triggering event can be at least one of the following: pressing the described button on 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 the power source.

[0109] Furthermore, it is preferably provided that the electronics are configured to display different patterns – i.e., different colors and / or different flashing patterns and / or different light intensities – sequentially, triggered by a single event, in particular a single triggering event, by controlling the lighting device. In particular, the different patterns can display different information about the key and / or the locking device.

[0110] Furthermore, it is preferably provided that the electronics are designed to control the lighting device to display a state of charge of the energy storage device after the key has been inserted into the locking device, wherein in particular the display of the state of charge is one piece of information among several pieces of information that is displayed after the key has been inserted.

[0111] Furthermore, it is preferably provided that the key is configurable such that at least some of the information that can be displayed by the lighting device is not displayed by the lighting device, in particular permanently, with the configuration being stored in the electronics. This makes it possible, for example, to deactivate certain information or its display for certain users or applications in order to save energy and avoid overwhelming the user.

[0112] Preferably, the key housing includes at least one light guide. Such a light guide is made, for example, of suitable plastic or glass and directs the light, for example from the LED on the circuit board, to the outside so that it is visible to the user.

[0113] Preferably, the lighting device, preferably the lighting element, is provided to shine through the light guide towards the broad side of the key.

[0114] Furthermore, it is preferably provided that the lighting device, preferably the lighting element, shines through the light guide over the frame in the direction of the key shaft.

[0115] It may be provided that at least one light guide, when viewed perpendicular to the thickness axis, protrudes beyond the frame.

[0116] If multiple optical fibers are present, one of the optical fibers can protrude beyond the frame on opposite sides of the key bow when viewed perpendicular to the thickness axis.

[0117] Furthermore, it is preferably provided that the lighting device, in particular the lighting element, is arranged within the described free space enclosed by the frame; in particular, the lighting device is located on the circuit board of the key.

[0118] The light guide is preferably located at least partially in the described actuation section, which is designed to be flexible enough to be pressed in order to actuate the key's button.

[0119] The optical waveguide described above is particularly preferred, consisting of a first optical waveguide and, additionally, a second optical waveguide. The two optical waveguides can also be combined in a single component, so that ultimately it is a first optical waveguide section and a second optical waveguide section. The first optical waveguide is arranged for emission on the first broad side of the housing. The second optical waveguide is arranged for emission on the second broad side of the housing.

[0120] In particular, it is provided that light, especially synchronously, can be emitted from the lighting device through the first and the second light guides. For this purpose, the lighting device can have a light source that feeds light into both light guides. Alternatively, the lighting device can have two synchronously controlled light sources (for example, two LEDs), with each light source feeding light into one of the two light guides.

[0121] Furthermore, it is preferably provided that the electronics are configured to control the lighting device in order to display contradictory information about mutually exclusive states by means of different patterns, wherein the patterns differ in particular in their blinking pattern and / or color. Such mutually exclusive states include, for example, "communication connection active" and "communication connection inactive".

[0122] In particular, the design stipulates that the patterns for the two opposing pieces of information differ in both their blinking pattern and color. This allows colorblind individuals to distinguish these two mutually exclusive states solely based on the blinking pattern.

[0123] Furthermore, it is preferably provided that the light intensity of the lighting device can be varied by the electronics depending on the time of day and / or the ambient lighting.

[0124] The invention further comprises an arrangement. The arrangement includes the described key and the described electromechanical locking device. Preferably, the locking device is designed to be arranged on a building door.

[0125] The key is specifically designed to be inserted into the locking device with its key shaft and to transmit torque to the locking device. Furthermore, it is preferably provided that the at least one transmission element is designed for current and / or data transmission to the locking device.

[0126] Furthermore, the arrangement can include the described device, wherein the wireless communication module of the key's electronics is configured for data exchange with the device.

[0127] The invention further comprises an assembly method used in the manufacture of a key, in particular the key described above. The assembly comprises at least the following steps: a) First, the electronics and / or electronic energy storage of the key are enclosed within the housing. In particular, the electronics and / or energy storage are positioned between the first and second housing parts. b) Subsequently, the housing, especially the closed housing, is attached to the frame. As already described, the frame has at least one gripping area that forms a surface for the key blade to be grasped by a user.

[0128] According to the invention, in step b) the housing is arranged on the first frame part, in particular inserted into it. Furthermore, the housing is arranged on the second frame part, in particular inserted into it. In particular, the two frame parts are also fastened to each other.

[0129] Furthermore, according to the invention, it is provided that when attaching the housing to the frame, in particular to the first frame part, the insert element of the key shaft is already located on the housing and is inserted into the key shaft base body.

[0130] The invention will now be described in more detail using an exemplary embodiment. The following are shown: Fig. 1 a schematic view of an arrangement according to the invention with locking device, apparatus and key according to an embodiment, Fig. 2 an exploded view of the key according to the embodiment, Fig. 3 a view of a narrow side of the key according to the embodiment, Fig. 4 a view of a wide side of the key according to the embodiment, Fig. 5 the in Figure 1 marked section AA, figure 6 in Figure 1 marked section BB, figure 7 in Figure 1section CC marked, Figure 8 a detail of the key according to the embodiment, Figure 9 an electronics and a lighting device of the key according to the embodiment, Figure 10 a state during the assembly of the key according to the embodiment, Figure 11 an assembly method according to the invention, and Figure 12 different light patterns for the key according to the embodiment.

[0131] The following will be based on the Figures 1 to 10 The construction of a key 1 according to an exemplary embodiment is explained in detail. Unless otherwise stated, reference is always made to all figures.

[0132] Fig. 1Figure 1 shows the key 1 according to the invention in an isometric view together with a locking device 101 and a device 103. The key 1 with the locking device 101 forms an arrangement 100 according to the invention. The device 103 can also be part of this arrangement 100. In addition, a key ring 102 can be arranged on the key 1.

[0133] The locking device 101 is a locking cylinder with a corresponding electronic device, as explained in the general part of the description. The device 103 is a mobile device or a stationary terminal, also as defined in the general part of the description.

[0134] The key 1 comprises a key bow 2 and a key shaft 50. The key shaft 50 is used for insertion into the locking device 101. If electronic access authorization is present, the key 1 can turn a cylinder core 104. If, however, no electronic access authorization is present, the cylinder core 104 cannot be turned in a locking device housing 106. In this case, a locking element (not shown) of the locking device 101 is prevented by an electromechanical actuator (not shown) of the locking device 101 from leaving a connecting position between the cylinder core 104 and the locking device housing 106. Thus, the key 1 cannot be turned in the locking device 101. Therefore, any rotation of the key 1 in the locking device 101 is blocked.

[0135] If electronic access authorization is present, the cylinder core 104 can rotate a driver 105, which is designed as a locking lug. For this purpose, the electromechanical actuator is operated, which allows the locking element to retract from its connecting position. A building door can be unlocked via the driver 105.

[0136] The key bow 2 is formed by a housing 10 and a frame 30. The frame 30 forms a free space 44 open on both sides (see figure). Fig. 10 ) for the arrangement of the housing 10. Once the housing 10 is mounted in the frame, the free space 44 in the frame 30 is filled by the housing 10. The housing 10 is surrounded by the frame 30 in a top view.

[0137] In the key bow 2, inside the housing 10 and thus surrounded by the frame 30, is an electronics unit 70 of the key 1. The electronics unit 70 includes the circuit board 71, which is described in detail in Figure 9 is shown.

[0138] Furthermore, it clarifies Figure 9 , that an energy storage device 85 is arranged inside the key bow 2 to supply power to the electronics 70 and / or the locking device 101, in particular to an electronic device and / or the actuator of the locking device 101. This energy storage device 85 can be charged via a 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 electronics 70 can be established via the socket 74.

[0139] The frame 30 of the key bow 2 is formed by a first frame part 31 and a second frame part 32.

[0140] The first frame part 31 has a front section 33. The key shaft 50, in particular a key shaft base body 51, is located on this front section 33. This key shaft base body 51 is formed monolithically with the first frame part 31, for example, cast together from metal. This achieves the rigid connection according to the invention between the frame 30 and the key shaft 50.

[0141] To define the invention, axes and sides are used which are particularly found in the Figures 3 and 4This is illustrated. Accordingly, the key shaft 50 extends along a longitudinal axis 90. Perpendicular to the longitudinal axis 90 are a thickness axis 91 and a width axis 92. The key bow 2 has two opposite broad sides 93. These two broad sides 93 are intersected by the thickness axis 91. Furthermore, the key bow 2 has two opposite narrow sides 94. The narrow sides 94 are intersected by the width axis 92.

[0142] The key shaft 50 is located on a front face 95 of the key bow 2. Opposite this front face 95 is a rear face 96. This rear face 96 may have a key ring through-hole 14 for the key ring 102. The front face 95 and the rear face 96 are intersected by the longitudinal axis 90. Both the frame 30 and the housing 10 abut the key ring through-hole 14.

[0143] Parallel to the thickness axis 91, a frame thickness 97 of the frame 30 is defined. In the illustrated embodiment, the frame 30 has this frame thickness 97 constantly at every point. This frame thickness is preferably at least 3 mm, so that sufficient stability is ensured.

[0144] Furthermore, the representation in Figure 3 , that the housing 10, when viewed along the longitudinal axis 90 or the transverse axis 92, protrudes beyond the frame 30 on both sides, i.e., on both broad sides 93.

[0145] The top view in Figure 4Figure 1 shows a view along the thickness axis 91. It can be seen that the frame 30 projects beyond the housing 10 along the longitudinal axis 90 and along the width axis 92 – that is, completely. The frame 30 is thus formed around the entire surface of the key bow 2. The frame 30 is open in the direction of the thickness axis 91. The broad sides 93 of the key bow 2, more precisely, the surfaces of the broad sides 93, are thus formed by the housing 10 and the frame 30.

[0146] The housing 10 forms a surface of the key bow 2 on opposite broad sides 93, which are cut by the thickness axis 91.

[0147] The housing 10 is composed of a first housing part 11 and a second housing part 12. Each housing part 11, 12 has a rail receptacle 13. Corresponding rails 43 of the frame 30 are inserted into this rail receptacle 13 in order to align the two housing parts 11, 12 and to seal the housing 10 tightly.

[0148] The exploded view in Figure 2 Figure 1 shows that a seal 28 can be inserted between the two housing parts 11, 12. Alternatively, this seal 28 can also be a component of one of the two housing parts 11, 12, for example by means of a two-component injection molding process.

[0149] From the front section 33, front legs 34 of the first frame part 31 extend towards the rear 96. This gives the first frame part 31, together with the key shaft base body 51, a fork-shaped form.

[0150] The second frame part 32 is U-shaped and includes a rear section 35 parallel to the front section 33. Parallel rear legs 36 extend from this rear section 35 towards the front 95.

[0151] The two frame parts 31, 32 are connected to each other via connection points 37. Each connection point 37 has locking lugs 38 and corresponding locking counterparts 39. The two frame parts 31, 32 are positively connected to each other by these connection points 37. The connection points are spaced apart from the longitudinal axis 90.

[0152] The frame 30, in the illustrated embodiment the second frame part 32, has a frame bushing opening 41 through which the bushing 74 is accessible.

[0153] In the housing 10, in particular in the second housing part 12, there is a housing socket opening 15 for the socket 74.

[0154] The frame 30 has a grip area 40 on each of its narrow sides 94. Each of these grip areas 40 forms a surface of the key bow 2 that the user can grip to turn the key 1 in the locking device 101. The grip areas 40, located directly on the frame 30, allow the torque to be transmitted directly to the key shaft 50. This prevents any undesirable stress on the housing 10.

[0155] According to the invention, the handle area 40 is rigidly connected to the key shaft 50. This enables very good torque transmission from the user to the locking device 101, in particular to the cylinder core 104 and the drive pin 106.

[0156] In the illustrated embodiment, the two grip areas 40 extend parallel to and spaced apart from the longitudinal axis 90. Specifically, the two grip areas 40 are formed by the two front legs 34 and the two rear legs 36. The grip areas 40 are separated from each other by the rear section 35 and the front section 33.

[0157] The two grip areas 40 extend over the entire length of the key bow 2.

[0158] For example, the AA cut in Figure 5 Figure 1 shows a push-button extension 17 on the inside of the first housing part 11. This push-button extension 17 can be pressed against a corresponding button 73. To do this, the user presses the two housing parts 11 and 12 against each other.

[0159] The key bow 2 has a relatively large actuating section 16, which is designed to be flexible enough that it can be pressed in by the user to actuate the button 73. The user does not need to search for a specific, small spot on the key bow 2 to actuate the button 73, but can press on the relatively large actuating section 16.

[0160] For example, the views in Figure 1 and Figure 4 This illustrates that a relatively large area of ​​the first housing part 11 is designed as an actuating section 16. This actuating section 16 is surrounded on all sides by a support section 18. Any area of ​​the first housing part 11 that does not form the actuating section 16 is to be assigned to this support section 18.

[0161] In particular, the first housing part 11 has a flat end surface 29 on one of its two broad sides 93. This flat end surface 29 is largely formed by the actuating section 16. At least a rear portion of the flat end surface 29 is designed as a support section 18. Furthermore, the first housing part 11 includes an edge section 20 that extends around the flat end surface 29. This edge section 20 is also part of the support section 18.

[0162] To achieve a sufficiently flexible design of the actuating section 16, the flat end surface 29 can have different wall thicknesses. In particular, the illustration in Figure 6Figure 1 shows that in the area of ​​the end surface 29, a first thin wall thickness 21 and a second thicker wall thickness 22 are provided. In the illustrated embodiment, the two wall thicknesses 21, 22 transition into each other via a step 19. Alternatively, several steps or a continuous change in wall thickness can also be provided here.

[0163] To prevent the two housing parts 11, 12 from being pressed too far or too forcefully against each other when the pushbuttons 73 are actuated, a support column is provided, consisting of a first support column part 23 and the inner surface of the first housing part 11, and a second support column part 24 on the inner surface of the second housing part 12. When the actuating section 16 is pressed, the two support column parts 23, 24 meet to form the support column.

[0164] For example Figure 8Figure 1 shows that the first housing part 11 has a receiving groove 25 for inserting an insert element 54. This makes it possible to position the insert element 54 on the housing 10.

[0165] Furthermore, the housing 10 includes 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 arranged to emit light at their respective broad side 93 and across the frame 30 towards the key shaft 50. For this purpose, the light guides 26, 27 extend beyond the frame 30.

[0166] As already described, the key shaft 50 comprises the key shaft base body 51, which is a monolithic component of the first frame part 31. This key shaft base body 51 has two spaced-apart shaft legs 52 and a shaft leg connection 53. The shaft leg connection 53 connects the two shaft legs 52 to each other at the front end of the key 1.

[0167] Furthermore, the key shaft 50 includes the insert element 54, in particular made of plastic. This insert element 54 is inserted between the two shaft legs 52. In particular, the sectional view CC in Figure 7 clarifies that the insert element 54 is located between the two shaft legs 52 and is connected to both shaft legs 52 via a tongue and groove connection 58.

[0168] Transmission elements 55 extend inside the insert element 54. Since the key 1 is designed as a reversible key, two of these transmission elements 55 are provided. For this purpose, the transmission elements 55 are arranged symmetrically in the key shaft 50.

[0169] In the area 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 therefore be used for data and / or energy transmission to the locking device 101.

[0170] Inside the key bow 2, the transmission elements 55 each have a circuit board contact surface 57 to electrically connect the two transmission elements 55 to a circuit board 71.

[0171] The circuit board 71 contains the button 73 already described, which can be pressed by the actuating section 16, in particular via the button extension 17.

[0172] Furthermore, socket 74, designed here as a USB-C socket, is located on circuit board 71.

[0173] Relatively close to the button 73, shown here as a hole, is a column recess 72. The support column, formed by the two support column parts 23, 24, protrudes through this column recess 72.

[0174] On circuit board 71 is a wireless communication module 78, designed for short-range communication with device 103.

[0175] Furthermore, it clarifies Figure 9that a lighting device 75 is arranged on the circuit board 71. In the illustrated embodiment, this lighting device 75 comprises a first lighting element 76 in the form of an LED on one side of the circuit board 71 and a second lighting element 77 in the form of an LED on the opposite side of the circuit board 71. The first lighting element 76 is arranged to supply light to the first light guide 26. The second lighting element 77 is arranged to supply light to the second light guide 27. In particular, the two lighting elements are controlled synchronously so that they both emit the same pattern.

[0176] The two light elements 76, 77 are specifically LEDs that can illuminate in several colors. Furthermore, the electronics 70 are configured to control the light device 75, i.e., the two light elements 76, 77, for the luminous display of at least one piece of information.

[0177] Figure 12The diagram shows examples of patterns regarding light color, intensity, and flashing pattern for different triggering events. For example, pressing button 73 (301) can emit blue light (b) with a flashing pattern of "long", "short", "short". Here, the "long" signal represents the connection being established, while the "short", "short" signals represent the existing connection.

[0178] When a charging cable is connected to terminal 304 and socket 74, white light (w) can be emitted, with both the light intensity and the duration of the individual light signals increasing over time. An interrupted pattern can indicate the charging process, and a prolonged glow can indicate that the device is fully charged.

[0179] When key 1 is removed from locking device 101, for example, two blue flashes (b) and one red flash (r) may occur, with the two blue flashes being short and the red flash being long. The blue flashes indicate a connection to device 103. The red flash indicates a fault.

[0180] For example, two different patterns are provided for inserting key 1 302 into the locking device 101, each representing a combination of information. In the combination "white" (w) "green" (g), "white" indicates a low charge level of the energy storage device and "green" indicates access is granted. In the combination "white-red-red," "white" indicates a low charge level of the energy storage device and "red-red" indicates that access is denied. If the energy storage device is sufficiently charged, the key will emit only the "green" pattern if access is granted and "red-red" if access is denied.

[0181] Figure 10Figure 1 illustrates a state during the assembly of the key 1 according to the invention. Accordingly, the two housing parts 11, 12 are first placed on top of each other. The electronics 70, in particular the energy storage device 85, are already located between the two housing parts 11, 12. Furthermore, the insert element 54 is inserted between the two housing parts 11, 12.

[0182] To press the two housing parts 11, 12 firmly against each other and, in particular, to compress the seal 28, the described rail receptacles 13 are provided in the two housing parts 11, 12, which are inserted into the corresponding rails 43 of the two frame parts 31, 32. The two frame parts 31, 32 can be slid onto the housing 10 simultaneously or sequentially.

[0183] During this assembly process, the insert element 54, which is already connected to the housing 10, is inserted through an insert element through-opening 42 in the first frame part 31 and can thus be inserted between the two shaft legs 52.

[0184] Figure 11 Figure 200 illustrates an assembly method for this embodiment. In assembly method step a) 201, the electronics 70 and the energy storage device 85 are first enclosed by the housing 10. Then, in assembly method step b) 202, the housing 10 is attached to the frame 30. This can be done without bending the housing 10 or the circuit board 71.

[0185] In assembly step b) 202, the rail receptacles 13 are slid into each other with the rails 43 of the first frame element 31, and simultaneously the insert element 54 is inserted into the key shaft base body 51. The second frame element 32 is then slid onto the housing 10, with the rails 43 of the second frame element 32 engaging in the rail receptacles 13 of the housing 10. At the end of the sliding movement, the second frame element 32 is fastened to the first frame element 31 by means of the snap-fit ​​connection 38, 39. Reference symbol list

[0186] 1 key 2 key bow 10 Housing 11 First housing part 12 Second housing part 13 Rail mounts 14 Key ring through-hole 15 Housing socket opening 16 Actuating section 17 Push button extension 18 Support section 19 Recess 20 Edge section 21 First wall thickness 22 Second wall thickness 23 First support column part 24 Second support column part 25 Mounting groove 26 First light guide 27 Second light guide 28 Seal 29 Flat end surface 30 Frame 31 First frame part 32 Second frame part 33 Front section 34 Front legs 35 Rear section 36 Rear legs 37 Connection points 38 Locking lugs 39 Locking counters 40 Grip area 41 Frame socket opening 42 Insert element through opening 43 Rail 44 Clearance 50 Key shaft 51 Key shaft base body 52 Shaft leg 53 Shaft leg connection 54 Insert element 55 Transmission elements 56 Locking device contact surfaces 57 Circuit board contact surfaces 58 Tongue and groove connection 70 Electronics 71 Circuit board 72 Column recess 73 Push button 74 Socket 75 Light device 76 First light element (LED) 77 Second light element (LED) 78 Wireless communication module 85 Energy storage 90 Longitudinal axis 91 Thickness axis 92 Width axis 93 Broad sides 94 Narrow sides 95 Front 96 Back 97 Frame thickness 100 Arrangement 101 Locking device 102 Key ring 103 Device 104 Cylinder core 105 Drive 106 Locking device housing 200 Assembly procedure 201 Assembly procedure step a 202 Assembly procedure step b 301 Push as trigger event 302 Insert as trigger event 303 Unplug as trigger event 304 Connect as trigger 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 each defined perpendicular to one another, • with a key bow (2) and • with a key shank (50) projecting along the longitudinal axis (90) of the key bow (2) for insertion into the locking device (101), • wherein the key bow (2) comprises an electrical energy storage device (85) and / or electronics (70), • wherein the key bow (2) comprises a frame (30) in which the energy storage device (85) and / or the electronics (70) is received, • wherein the frame (30) is rigidly connected to the key shank (50), • and wherein the frame (30) comprises at least one grip region (40) which forms a top surface of the key bow (2) for a user to grasp, wherein the key bow (2) comprises a housing (10), • wherein the housing (10) is surrounded by the frame (30), • and wherein the housing (10) encloses the electronics (70) and / or the energy storage device (85), in particular in a sealed manner, • wherein the housing on the two opposing broad sides intersected by the thickness axis (91) in each case forms a top surface of the key bow, wherein the frame (30) comprises at least one first frame part (31) and one second frame part (32), wherein the first and second frame parts (31, 32) are connected to one another in a force-fitting and / or form-fitting and / or materially-bonded manner at a connection point (37), preferably at at least two connection points (37), wherein the key shank (50) comprises a key shank main body (51) and an insert element (54) wherein the insert element (54) is fastened to the key shank main body (51) in a force-fitting and / or form-fitting manner.

2. The key (1) according to one of the preceding claims, • wherein the frame (30), in particular the first frame part (30), is connected in one piece, in particular monolithically, to the key shank main body (51); • in particular wherein the first frame part (31) and the key shank main body (51) are designed to be fork-shaped together.

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

4. The key (1) according to one of the preceding claims, wherein the housing (10) comprises a first housing part (11) and a second housing part (12), wherein the frame (30) comprises at least one rail (43), preferably parallel rails (43), wherein the at least one rail (43) is designed to arrange the first housing part (11) and the second housing part (12) against one another, wherein, in particular, a seal (28) between the first and the second housing part (11, 12) can be compressed by means of the at least one rail (43).

5. The key (1) according to one of the preceding claims, wherein the key shank (50) • comprises at least one transmission element (55) for transmitting electrical energy and / or electronic data to the locking device (101); • in particular comprises at least two of the transmission elements (55) for transmitting electrical energy and / or electronic data to the locking device (101), wherein the transmission elements (55) are arranged symmetrically for reversible key-like usability.

6. The key (1) according to one of claims 4 to 5, wherein the insert element (54) is arranged on at least one of the housing parts (11, 12), preferably on both housing parts (11, 12), and / or wherein the insert element (54) comprises the at least one transmission element (55) for transmitting electrical energy and / or electronic data to the locking device (101).

7. The key (1) according to one of the preceding claims, wherein the key (1) comprises a socket (74) for charging the energy storage device (85) and / or for cable connection to the electronics (70), wherein the frame (30), preferably the second frame part (32), comprises a frame socket opening (41) for the socket (74).

8. The key (1) according to one of the preceding claims, wherein the key bow (2) comprises at least one light-emitting device (75), in particular with at least one light-emitting element (76, 77), and the housing (10) comprises at least one light guide (26, 27).

9. The key (1) according to claim 8, • wherein the at least one light guide (26, 27) protrudes beyond the frame (30) when viewed perpendicular to the thickness axis (91), • or wherein one of the light guides (26, 27) protrudes beyond the frame (30) on opposing sides of the key bow (2) when viewed perpendicular to the thickness axis (91).

10. The key (1) according to one of the preceding claims, wherein a key ring through-opening (14) is formed for fastening the key (1) to a key ring on the frame (30), in particular between the frame (30) and the housing (10).

11. An assembly method (200) for assembling a key (1), in particular a key (1) according to one of the preceding claims, wherein the key (1) comprises a key bow (2) and a key shank (50) rigidly connected to the key bow (2), wherein the assembly comprises at least the following steps: a. Surrounding electronics (70) and / or an electrical energy storage device (85) of the key (1) with a housing (10), and b. Fastening the housing (10) to a frame (30), wherein the frame (30) comprises at least one grip region (40) which forms a top surface of the key bow (2) for a user to grasp, wherein in step b. the housing (10) is arranged, in particular pushed in, on a first frame part (31) and on a second frame part (32), and the two frame parts (31, 32) are fastened to one another, wherein, when the housing (10) is fastened to the frame (30), in particular to the first frame part (31), an insert element (54) of the key shank (50) is pushed into a key shank main body (51).