Electronic door handle

Abstract

The invention relates to an electronic door handle (1) for keyless operation of an opening and / or closing mechanism (3) of a door (2), in particular an interior door. The door handle (1) comprises at least one handle (4), an electromechanical coupling device (15) with a coupling element (152) and an electromechanical drive (151) for moving the coupling element (152), a control unit (12) for evaluating identification and for controlling the electromechanical coupling device (15) after successful identification, and an electrical power supply (13). The electromechanical coupling device (15), the control unit (12), and the power supply (13) are arranged in the handle (4), and the handle (4) has an operating unit (61) via which identification can be carried out by entering an access code. The operating unit (61) is arranged on a first side (71) of the handle (4).Furthermore, a second operating unit (62) for entering the access code is provided on a second side (72) of the handle (4), which is opposite the first side (71). In the installed state of the door handle (1), the first side (71) and the second side (72) of the handle (4) are each arranged perpendicular to a door leaf of the door (2). This means that the electronic door handle (1) has an operating unit (61, 62) for entering the access code on both the first and second sides (71, 72), with the first and second sides (71, 72) of the handle (4) forming a top and a bottom of the handle (4) in the installed state of the door handle (1).

Description

[0001] The present invention relates to an electronic door handle for keyless operation of an opening and / or closing mechanism of a door, in particular an interior door. The electronic door handle comprises at least one handle, an electromechanical coupling device with a coupling element and an electromotor drive for moving the coupling element, a control unit for evaluating identification and for controlling the electromechanical coupling device after successful identification, and an electrical power supply. The electromechanical coupling device, the control unit, and the power supply are arranged in the handle, and the handle includes an operating unit via which identification can be effected by entering an access code. The invention further relates to a door handle set with at least one electronic door handle. State of the art

[0002] Door handles, which come in various designs, are typically part of a door set or door hardware. A door handle primarily serves to operate the opening and / or closing mechanism of a door, thus enabling the door to be opened and / or closed.

[0003] Such a door handle typically features a grip, also known as a door handle or door lever. The grip is connected, preferably in a rotationally fixed manner, to a drive or actuating element, in particular a rod-shaped multi- or square spindle or a rod-shaped multi- or square shaft, for the rotational engagement of an actuating and / or closing device embedded in a door leaf. Usually, a grip or door handle is provided at each end of the drive element, with at least one of the two grips being detachably attached to the drive element for assembly reasons.

[0004] The operating and / or locking mechanism integrated into the door leaf is typically a door lock, usually a mortise lock, which includes at least one latch housed in an elongated casing and a bolt for locking the door. In some cases, such as with interior doors, the door lock may only include a latch. A mortise lock is inserted into a correspondingly shaped recess in the door leaf, which is generally standardized in Europe, and secured there. To keep the door leaf closed in the door frame, the latch of the door lock usually engages in a corresponding recess in a strike plate opposite the door lock. To open the closed door, the latch is retracted from the strike plate by operating the handle of the door handle. For this purpose, the handle is, for example, pulled or...The door handle is pressed downwards, and the pivoting motion of the handle rotates the drive element around its axis of rotation. This rotational movement is converted into a retraction movement of the latch via a coupling element, the so-called lock follower, which is rotatably mounted in the door lock. This retracts the latch from the lock plate, allowing the door to be opened.

[0005] To secure doors against unauthorized access, doors, especially exterior or front doors, typically have a mechanical locking mechanism or cylinder lock. Using a suitable key, a cylinder core located within a cylinder profile can be turned. This moves a locking mechanism, usually located approximately in the center of the cylinder profile (e.g., a locking cam or a follower that rotates relative to the cylinder profile), to lock the door or to engage or retract the bolt of the door lock into a corresponding recess in the lock plate. The latch can either be spring-loaded and beveled on the side facing the door frame so that it is retracted and inserted into the recess when the door closes, or it can be designed as a rectangular magnetic latch. In both cases, the latch is retracted by operating the door handle.With so-called reversible locks, the latch can also be operated with the key to open the door, even if the bolt used to lock the door is fully retracted. In these cases, there is usually no swing handle or lever handle on the outside of the door, but rather a fixed knob. A swing handle or lever handle for operating the latch and opening the door is typically located on the inside of the door.

[0006] However, nowadays there is a growing interest in using electronic locking systems instead of the familiar mechanical door locks. Such locking systems can usually be conveniently locked keylessly by an authorized person using appropriate identification. Access or numerical codes, programmed fingerprints, or other biometric data (e.g., iris scan, Face ID), as well as RFID units such as RFID cards or chips, can be used to identify authorized persons. Therefore, electronic locking systems have a control unit that is configured to evaluate identification in the form of entered identification data (e.g., access code, fingerprint, etc.) and / or in the form of an RFID unit brought within range of the locking system. Depending on the result of the identification, the control unit then activates the locking system to lock (i.e., prevent the door from being opened).(a locking or unlocking) of the door is possible or not.

[0007] Electronic locking units are frequently used, which act on the lock or its locking mechanism and, after successful identification, release the lock. These locking units incorporate an actuating element (e.g., a guide shaft) located in an axially continuous cavity within the lock's cylinder profile. A knob is typically attached to the actuating element, allowing it to be operated or rotated. Upon successful identification, the actuating element interacts with the lock's locking mechanism (e.g., a locking cam or follower that rotates relative to the cylinder profile), and the door can be locked or unlocked, for example, by turning the knob, thereby engaging at least the bolt. For this purpose, the actuating element is coupled to the lock's locking mechanism, either mechanically or electromagnetically.In the unreleased state or if identification fails, at least one knob located on the outside of the door is not connected or coupled to the locking mechanism of the lock. The knob may, for example, rotate freely when actuated or may be blocked. To switch between a coupled and a decoupled state between the actuating element and the locking mechanism of the lock, a coupling device is typically provided, comprising a coupling element and a drive for moving the coupling element. Switching between the coupled and decoupled states is usually accomplished via a control unit. Furthermore, electronic locking systems include a power supply to power the control unit and the coupling device. Such electronic locking systems are known, for example, from WO 2018 / 208154 A1 or DE 20 2009 011 110 U1.

[0008] Alternatively, electronic locking units are also available, which use the latch of the lock to lock a door and therefore often release it without the use of a cylinder. With these locking units, the handle of a door lever mounted on the outside of the door is typically selectively prevented from operating the latch. This means that the latch can only be retracted from the corresponding recess in the lock plate after appropriate identification with the handle. For identification purposes – as with electronic locks – access codes, programmed fingerprints, or other biometric data (e.g., iris scan, Face ID), RFID units can be used. To lock the door, e.g.,After successful identification, an electric motor drives a coupling element of a coupling device to establish a operative connection, e.g., a rotationally fixed connection, between the handle of the door lever and the actuating element for operating the latch (e.g., square or multi-sided spindle). The latch can then be retracted and the door opened by operating the handle. Without such identification, there is usually no operative connection between the handle and the actuating element, so pressing the handle does not engage the actuating element and the latch is not operated. For security reasons, the lever handle function on the opposite inside of the door may be disabled in these locking units.The electronic locking unit can be permanently connected to the latch, allowing the door to always be opened from the inside, or it can also be installed on the inside of the door. Ideally, the control unit, the electromechanical drive, the coupling mechanism, and the power supply of such locking units can be integrated into the handle of the door lever, as shown, for example, in EP 3 058 154 A1 or WO 2023 / 011 874 A1. Such electronic locking units or electronic door levers are frequently used on doors in interior areas, such as hotels, offices, rooms with lower security requirements, etc.

[0009] For the identification of authorized persons, electronic locking units that act on the latch can also use programmed fingerprints or other biometric data (e.g., iris scan, FaceID), RFID cards, or chips. However, in large buildings with various areas to which a large number of people or frequently changing individuals may have access, the use of biometric data or user devices such as RFID cards or chips can require significant administrative effort and / or a large number of user devices. Furthermore, such identification methods are not particularly flexible if only temporary access is to be granted, as is the case, for example, with hotel rooms. Therefore, an electronic door handle can have a control unit via which identification can be carried out by entering an access code. This control unit can, for example, be a keypad.The keypad or touchpad can be designed as a keypad or touch panel. The keypad or touchpad may, for example, have several number and / or character keys for entering the access code and may be located on the handle, for instance, on the front side of the handle facing away from the door leaf. The number and / or character keys may be arranged in one or more rows along the front of the handle. Since the door handle is usually mounted at the same height as the door lock on the door leaf, the numbers and / or characters on the front of the handle are often difficult for a user to see, or the user has to bend down to read them and enter the access code.

[0010] Furthermore, doors typically have different opening and swing directions. This means that a door, for example, can have a movable connection (hinges) on either a left edge (left-hinged) or a right edge (right-hinged), which connects the door leaf to the door frame or jamb. The door lock and the door handle for operating the door are then mounted on the opposite edge or side of the door from the hinges. This necessitates adapting the door handle, especially the operating unit for entering the access code, to the door's swing direction so that the numbers and / or symbols on the operating unit are easy for the user to read and operate. In other words, door handles with operating units for both right- and left-hinged doors must be manufactured, which involves additional costs and effort.Furthermore, it can happen that customers do not take into account how the door is hinged when ordering or buying the door handle and order the wrong door handle. Description of the invention

[0011] The invention is therefore based on the objective of providing a door handle which can be mounted on a door regardless of the direction of travel and which allows the entry of an access code for identification in a simple and more visible manner for the operation of the locking mechanism.

[0012] This problem is solved by a door handle according to the independent claim. Advantageous embodiments of the present invention are described in the dependent claims.

[0013] According to the invention, the problem is solved by an electronic door handle of the type mentioned above, in which the operating unit is arranged on a first side of the handle, and in which the handle has a further operating unit for entering the access code on a second side, which is opposite the first side. In this case, both the first side of the handle and the second side of the handle are arranged perpendicular to a door leaf or to the door in a mounted state of the door handle.

[0014] The main aspect of the door handle according to the invention is that, when the door handle is mounted, the first side, on which the operating unit is located, and the second side, on which the second operating unit is located, each form the top and bottom of the handle of the mounted door handle. Ideally, one of the operating units is positioned so that a user can look down at the handle or the door grip of the door handle and thus at the operating unit. This makes the operating unit significantly more visible to the user. The user can therefore enter the access code to open the door much more easily and simply via the operating unit. Furthermore, neither when purchasing nor when installing the door handle, it is necessary to consider the door's swing direction.Due to the two operating units arranged on opposite sides of the handle, which are positioned normal to the door leaf when mounted, one of the two operating units is always located on the top of the handle when the door handle is mounted, making it easily visible and operable for a user.

[0015] It is advantageous if, when the door handle is mounted, the control unit for entering the access code is located on the side of the handle that forms the top of the handle when mounted. This way, only the control unit that the user can also use to enter the access code to open the door is activated, as this unit is located on the easily visible top of the handle. This also saves energy in the door handle, as both control units are not unnecessarily activated. Ideally, the control unit located on the top of the handle should be activated by touch.

[0016] A practical design for the door handle includes at least one touchpad (or keypad) with number and / or character keys for entering the access code, and illumination, particularly LEDs. The access code can be easily entered via the number and / or character keys on the touchpad, which can be designed as capacitive switches, for example. Alternatively, the two control units can have a keypad with electrically or mechanically operated number and / or character keys for entering the access code, in which contacts are moved when pressed. The illumination can light up the control unit—especially the touchpad or keypad—so that the number and / or character keys are more visible to the user, particularly in the dark.The respective control unit can be illuminated by the lighting when activated. That is, if, for example, the control unit located on the top of the mounted door handle is activated by touch, the lighting is also activated to illuminate this control unit.

[0017] Furthermore, it is advantageous if the door handle has a proximity sensor to detect an approaching person and / or a light sensor. Ideally, the proximity sensor and / or the light sensor are located in the handle. The light sensor measures, for example, the ambient light level around the door handle and activates or deactivates the integrated lighting when a predefined light level is exceeded or falls below a certain threshold. This allows, for example, the touchpad or keypad of the door handle to be automatically illuminated when the ambient light is insufficient, and deactivated when the ambient light is sufficient. The proximity sensor can detect when a person, such as the user's hand, approaches the handle. This allows for the simple activation of the door handle's lighting and / or touchpad – i.e., its operating unit.Ideally, the proximity sensor can also activate other identification functions integrated into the door handle or grip, such as a fingerprint sensor, an RFID reader, optical sensors for Face ID or iris scanning, etc. This ensures, for example, that the control unit located on the top of the handle, as well as any other existing identification functions, are only activated when someone intends to use the door handle to open the door. This effectively reduces the door handle's energy consumption.

[0018] A practical design variant of the door handle provides that the door handle's control unit and the sensors for evaluating inputs from the respective operating units are each arranged on separate circuit boards, with the circuit boards being positioned separately within the handle. That is, the control unit, the sensors for evaluating inputs from the operating unit, and the sensors for evaluating inputs from the other operating unit are each located on their own circuit boards within the handle. Ideally, this means that no electronic components of the control unit are located on the circuit boards of the two operating units, on which the sensors for evaluating inputs are located. Thus, ideally, the electronic components are not disturbed or damaged by, for example, touching or pressing the number and / or character keys of the operating units.

[0019] Alternatively, the door handle control unit can also be arranged on one of the circuit boards on which the sensors for evaluating inputs from the respective operating units are located, with the circuit boards being arranged in the handle itself. This means that the electronic components of the control unit are, for example, located on the circuit board with the sensors for evaluating inputs from the operating unit, or on the circuit board with the sensors for evaluating inputs from the other operating unit, thus eliminating the need for a separate circuit board for the control unit.

[0020] It is also advantageous if the control unit is configured to determine and evaluate the access code for identification from a string of numbers and / or characters entered via the respective operating unit, where the string of numbers and / or characters has a predefined length. This makes it very easy to prevent unauthorized or unauthorized persons from intercepting the access code.

[0021] It is also advantageous if the door handle has a fingerprint sensor for identification, particularly on the front side of the handle facing away from the door leaf. This allows a fingerprint to be used to open the door as an alternative to entering an access code.

[0022] Furthermore, the door handle should ideally also have at least one sensor for reading an RFID unit, which can be used for identification. This sensor for reading an RFID unit, such as an RFID card or RFID chip, can be located, for example, on the front side of the handle facing away from the door leaf, similar to a fingerprint sensor. However, it is also conceivable that one sensor for reading an RFID unit is located on each side of the handle, positioned perpendicular to the door leaf when the door handle is mounted. This means that each operating unit of the door handle is equipped with a sensor for reading an RFID unit. Both the fingerprint sensor and the RFID unit reading sensor can be activated, for example, via a proximity sensor, similar to the operating units.

[0023] Furthermore, it is advantageous if the door handle is configured to establish a mobile communication connection, particularly via Bluetooth or Wi-Fi, to a mobile device (e.g., mobile phone, smartphone, tablet). This allows identification for opening the door or triggering the activation of the coupling mechanism in the door handle—i.e., establishing the functional connection between the handle of the door handle and the actuating element for operating the latch—to be carried out via an application on a mobile device. This communication connection can also be used, for example, to administer the electronic door handle, such as programming authorized access codes or fingerprints, etc.

[0024] Ideally, the electronic door handle is part of a door hardware set and is mounted on at least one exterior side of the door leaf, particularly an interior door. In addition to the door handle according to the invention, the door hardware set can also include the actuating element (e.g., a square or multi-sided spindle or shaft) and a further door handle. This further door handle, which is mounted, for example, on an interior side of the door leaf, can also be an electronic door handle according to the invention. This allows the door to be electronically locked from both sides using the respective door handle, requiring the entry code to be entered when leaving the room. This makes it very easy to log not only entry to a room but also exits from the room (e.g., a server room).

[0025] Alternatively, an additional door handle can be mounted on the inside of the door leaf. This handle is mounted on the inside of the door leaf and, when installed, is securely connected to the operating element in such a way that the door can always be opened using the handle of this additional door handle. This means that, for example, for safety reasons, the handle of the additional door handle is permanently connected to the latch via the operating element, so that the door can always be opened from the inside and a person can leave the room. Brief description of the characters

[0026] The present invention is described below with reference to the Figures 1 to 3 In more detail, the invention is explained, and exemplary, schematic, and non-restrictive embodiments are shown. This includes showing Fig. 1 a perspective view of a door handle according to the invention in the mounted state on a door leaf of a door; Fig. 2an exploded view of the door handle according to the invention Fig. 3 another perspective view of the door handle according to the invention with the front cover removed Implementation of the invention

[0027] Fig. 1Figure 1 shows an exemplary and schematic perspective view of a door handle 1 according to the invention in its mounted state on a door leaf 2 or a door 2, wherein the door leaf 2 is typically received in a door frame. The door handle 1 according to the invention is designed as an electronic or electromechanical door handle 1, in which the handle function – i.e., the actuation of a latch 31 of an opening and / or closing device 3 by means of the handle 4 of the door handle 1 – can be switched on or off via a corresponding control unit 12. Such door handles 1 are preferably used in applications where, although access control to rooms or parts of buildings is required, a lower level of security is needed, but complete locking of the door 2 is not necessary. Such door handles are preferably used on interior doors, for example in hotels, offices, etc.

[0028] The door leaf 2, or door 2, incorporates an opening and / or closing device 3 in the form of a door lock 3, in particular a so-called mortise lock 3, which is arranged in a typically standardized, end-face recess in the door leaf 2. In the present embodiment, this opening and / or closing device 3 has only a latch 31. Alternatively, the door lock 3 can also have a latch 3 and a bolt. Similarly, standardized through-holes are provided for mounting the door handle 1 or a door set to which the door handle 1 belongs.

[0029] The door handle set often includes an actuating element in addition to the door handle 1. The actuating element is arranged in a corresponding through-hole in the door lock 3 and is preferably rotationally fixed to the door lock in order to operate the door lock 3, especially the latch 31, with the door handle 1, i.e., via the handle 4 of the door handle 1. The actuating element can be designed in the form of a pin- or rod-shaped shaft, which has at least one section with multiple edges. The actuating element is usually designed, at least in part, as a polygon, in particular as a square. The door handle 1 has, as shown in the figure, a handle 4 on its handle 4. Fig. 2As can be seen, a bracket 14 is mounted, from which, when the door handle 1 is installed, an end of the actuating element projecting beyond the door lock 3 is at least partially received. Furthermore, the door set includes another door handle. This door handle can, for example, also be designed as an electronic door handle 1 – for use in rooms where not only entry but also exit from the room, such as in a server room, etc., is to be documented by entering an access code. This means that an electronic door handle 1, as shown in [reference to relevant figure], is installed on both sides of the door leaf 2. Fig. 1The following is an example of how the door handle is mounted. Alternatively, the additional door handle can also be designed so that, when mounted, it is rotationally fixed to the operating element, thus allowing the door 2 to always be opened using the handle of the additional door handle. Ideally, the electronic door handle 1 is then mounted on an outside of the door leaf 2, and the additional door handle on an inside of the door leaf 2, so that a person can always leave the room.

[0030] Additionally, the door hardware can also have at least one, preferably two, escutcheons, provided the door lock 3 also has a cylinder lock or other locking mechanism. The cylinder lock or other locking mechanism can be used to operate the bolt of the door lock 3 in order to lock the door 2. The escutcheons can accommodate the free ends of the cylinder lock or other locking mechanism.

[0031] The door handle 1 has a door handle rosette 5, which secures the door handle 1 in the mounted state, as shown in Fig. 1 As shown by way of example, it adheres to the door leaf. As from Fig. 2 As can be seen, the door handle rosette 5 comprises a mounting element 51 and a cover 52. The mounting element 51, which has through holes for fasteners (e.g., screws) as well as for the actuating element or for the bracket 14 of the handle 4, is used to mount the door handle 1 to the door leaf 2. The cover 52, which covers the mounting element 51, also has a through hole to accommodate at least the bracket 14 for the actuating element on the handle 4.

[0032] Furthermore, the door handle 1 comprises the handle 4, which has a preferably elongated grip section 41 and an adjoining neck section 42. In the mounted state of the door handle 1, the neck section 42 extends along and concentrically around a pivot or rotation axis R of the actuating element and also of the handle 4, which is normal to the door leaf 2. The grip section 41 extends along an axis A, which projects laterally radially from the pivot or rotation axis of the actuating element or is preferably oriented perpendicular to it. In the mounted state of the door handle 1, the handle 4 is thus arranged on the door leaf 2 such that the grip section 41 is spaced apart by the neck section 42 and runs approximately parallel to the door leaf 2.

[0033] The handle 4 further comprises an operating unit 61 for entering an access code as identification for opening the door 2, which is arranged on a first side 71 of the handle 4 or the handle section 41. Furthermore, the handle 4 comprises another operating unit 62 for entering an access code as identification for opening the door 2, which is arranged on a second side 72 of the handle 4 or the handle section 42, which is opposite the first side 71, wherein in the Fig. 1 In the depicted view or perspective of the mounted door handle 1, only the operating unit 61, which is located on the first side 71 of the handle 4, is visible. However, it is also apparent from Fig. 1It is evident that the first side 71 – and thus also the side 72 of the handle 4 opposite the first side 71 – are oriented perpendicular to the door leaf 2 when the door handle 1 is mounted. Therefore, one of the two sides 71, 72 of the handle 4 or the handle section 41 – e.g., the first side 71 – forms the top of the handle 4 or the handle section 41, while the second side 72 forms the bottom of the handle 4 or the handle section 41.

[0034] The respective control unit 61, 62 comprises at least a touchpad with number and / or character keys 611 for entering the access code, as well as illumination, in particular LEDs. Instead of a touchpad with mostly capacitive number and / or character keys 611, the respective control unit 61, 62 can also have a keypad with electrically or mechanically operated keys 611, which move contacts when pressed. The illumination allows the respective control unit 61, 62, in particular the number and / or character keys 61, to be illuminated when activated, so that the number and / or character keys 611 are more easily visible to a user. In the illustrated configuration, for example, the control unit 61 and the further control unit 62 extend along the axis A of the handle section 41. This means that the number and / or character keys 611 for entering the access code are, for example,arranged along axis A. For example, number and / or character keys 611 from 0 to 9 are provided, as well as a confirmation key for pressing after completing the access code entry. Depending on the design of the handle section 41, the operating units 61, 62, in particular the touchpad or the keypad, can also be configured in multiple rows, have a smaller or larger number of number and / or character keys 611, etc. For example, instead of the numbers 0 to 9, the touchpad or keypad of the respective operating unit 61, 62 may only have the numbers 1 to 6, or the numbers 1 to 9, or any other combination of numbers and / or characters.

[0035] The operating units 61, 62 can be activated, for example, by touch when the door handle 1 is mounted on a door 2. Ideally, only the operating unit 61 of the handle 4 that is located on side 71 of the handle 4, which forms the top side when the door handle 1 is mounted, can be activated. Fig. 1 In the mounted state, the door handle 1, for example, has its first side 71 of the handle 4 forming the top, meaning that only the operating unit 61 can be activated by touch. The other operating unit 62 on the second side 72 of the handle 4, which forms the bottom, would not be activated. If the door handle 1 were mounted on a different side of the door leaf 2 – for example, on one of the... Fig. 1On the opposite side of the door leaf 2 as shown, for example, the second side 72 of the handle 4 would form the top of the handle 4 and the first side 71 of the handle 4 would form the bottom of the handle 4. This means that, for example, only the second control unit 62 can be activated by touch, and the control unit 61 on the first side 71 of the handle 4 would not be activated. When one of the two control units 61, 62 is activated, for example, this control unit 61, 62, in particular the associated number and / or character keys 611, is illuminated, and the user can enter an access code as identification to open the door 2, which is then evaluated by the control unit 12 located in the handle 4.

[0036] The door handle 1 can, in addition to the operating units 61, 62, have further sensor units for identification purposes to open the door 2, such as a fingerprint unit 8, and / or at least one sensor 17 for reading an RFID unit, such as an RFID chip and / or an RFID card, and / or further sensor units for identification, such as optical sensors for Face ID or iris scan, etc. The fingerprint sensor 8 can, for example, be provided on a front side of the handle 4 facing away from the door leaf and connected to the control unit 12. For this purpose, a front cover 9 of the handle 4 can, for example, have a corresponding recess in which the fingerprint sensor 8 is arranged. The at least one sensor 17 for reading the RFID unit, i.e.,An RFID or NFD antenna is also connected to the control unit 12 and can, for example, be located on the front of the handle 4, for instance, in the area of ​​the fingerprint sensor 8, e.g., in the frame of the fingerprint sensor 8, or in a central area of ​​the front cover 9, if the front cover is made of plastic, for example. The front cover 9 can have a corresponding marking so that a user knows where to hold the RFID unit, e.g., chip or card, for identification to open the door 2. Alternatively, two sensors 17 can be provided for reading the RFID unit at the door handle 1, particularly with a metal front cover. In this case, as in the illustrated embodiment of the door handle 1, a first sensor 17 can be located in the area of ​​the operating unit 61 and a second sensor 17 in the area of ​​the other operating unit 62.A sensor 17 for reading the RFID unit is located on the first side 71 (top) and on the second side 72 (bottom) of the door handle 1. A marker can be provided in the area of ​​the operating units 61 and 62 to indicate to the user where to hold the RFID chip or RFID card for identification to open the door 2. Ideally, the respective sensor 17 for reading an RFID unit can be activated together with the respective operating unit 61 or 62.

[0037] The door handle 1 can, for example, have a light sensor that measures the brightness in the vicinity of the door handle 1 and automatically activates the lighting when the measured brightness falls below a predefined brightness value, and automatically deactivates the lighting when the measured brightness exceeds a predefined brightness value. The light sensor can, for example, be located in the handle 4.

[0038] Furthermore, the door handle 1 can have a proximity sensor – in addition to or as an alternative to the light sensor – which detects, for example, a person approaching the door handle 1 or, for example, a person's hand approaching it. The proximity sensor can be located, for example, in or on the handle 4. If the proximity sensor detects, for example, the approach of a person, the lighting and / or the touchpad or keypad of at least that control unit 61, which is located on the top side 71 of the handle when the door handle 1 is mounted, can be activated. If the door handle 1 – as in Fig. 1For example, if a fingerprint sensor 9 and / or at least a sensor 17 for reading an RFID unit and / or further sensor units for identification, such as optical sensors for Face ID or iris scan, etc., are present, these sensors 9, 17 can also be activated by touch and / or by the proximity sensor.

[0039] The handle 4 of the door handle 1 according to the invention is made of a hollow material and thus has an interior space that preferably extends over the neck section 42 and the grip section 41. In this interior space, in addition to the control unit 12, an electromechanical coupling device 15 and an electrical power supply 13 are arranged. Fig. 2An exploded view of the door handle 1 according to the invention is shown by way of example and schematic in order to make the coupling device 15, the control unit 12, the power supply 13 and a sensor system 111, 112 for the operating units 61, 62 visible.

[0040] The coupling device 15 is, for example, mounted inside the door in the area of ​​the sleeve-shaped neck section 41, for which a drive bracket 16 is provided. The coupling device 15 comprises an electric motor drive 151 and a coupling element 152. After successful identification—for example, after entering a correct access code, a fingerprint of an authorized person, or using an authorized RFID card or RFID chip—the coupling element 152 is moved by the electric motor drive 151 in such a way that an operative connection is established between the handle 4 and the actuating element. For this purpose, the actuating element, when the door handle is mounted, is at least partially positioned in the holder 14 of the handle with an end projecting beyond the door lock 3.Upon successful identification, the coupling element 152 engages with the actuating element, driven by the electric motor 151. The latch 31 of the door lock 3 can then be actuated by pressing the handle 4, thus opening the door 2. Without successful identification, or if identification fails, the coupling element 152 does not move. Consequently, there is no coupling to the actuating element and no operative connection between the actuating element and the handle 4 of the door handle 1, preventing the door 2 from being opened.

[0041] The control unit 12 is provided for controlling the electromechanical coupling device 15, in particular the electromechanical drive 151. The control unit 12 is further configured to evaluate identification data. This means that the control unit 12 evaluates identification data (e.g., access code, fingerprint, etc.) entered via the activated operating unit 61, the fingerprint sensor 8, and / or at least one sensor 17 for reading an RFID unit, and then controls the coupling device 15 accordingly. The control unit 12 can be configured to evaluate all digits and / or characters entered via the activated operating unit 61—except for the confirmation button—when the identification is entered as an access code, and compare them, for example, with an access code stored in the handle.

[0042] Alternatively, the control unit 12 can be configured to determine and evaluate the correct access code from a string of numbers and / or characters entered via the activated operating unit 61. The string of numbers and / or characters to be entered by a user has a predefined length – i.e., a fixed number of numbers and / or characters. It can be stipulated, for example, that a predefined number of arbitrary numbers and / or characters must be entered before or after the access code, thus easily preventing unauthorized access code interception. The control unit 12 is then configured to disregard this predefined number of arbitrary numbers and / or characters when evaluating the access code. For example,The predefined number of digits and / or characters entered before the access code are removed or ignored by control unit 12, and only the remaining digits and / or characters of the input are used as the access code for identification. This means, for example, that a user is required to enter a certain number x of arbitrary digits and / or characters via the activated control unit 61 before entering the digits and / or characters of the actual access code and pressing the confirmation button. Control unit 12 then evaluates the user's input accordingly, for example, by discarding the first x digits and / or characters entered and only using the digits and / or characters entered from x+1 onwards for identification.Alternatively, the control unit 12 can, for example, only use the first x digits and / or characters of the input via the activated operating unit 61 as an access code and discard the remaining digits and / or characters, if, for example, it is specified that the specified number of arbitrary digits and / or characters follows the access code.

[0043] The control unit 12 can, for example, as shown in the diagram. Fig. 2 and Fig. 3The interior of the handle 4 is evident in the grip section 41, particularly in a transition area to the neck section 41. The control unit 12 can consist of various components (e.g., microprocessors, etc.) mounted on a circuit board 121. Furthermore, sensors for evaluating inputs via the number and / or character keys 611 of the respective operating units 61, 62 of the door handle 1 are arranged in the interior of the handle 4 in the grip section 41. In the door handle 1 according to the invention, for example, sensors for evaluating inputs via the number and / or character keys 611 are provided for each of the two operating units 61, 62, each of which is arranged on its own circuit board 111, 112.The sensors for evaluating the inputs via the number and / or character keys 611 of the operating unit 61 are arranged on a first circuit board 111, and the sensors for evaluating the inputs via the number and / or character keys 611 of the further operating unit 62 are arranged on a second circuit board. The components of the control unit 12 are located in the Fig. 2 and Fig. 3 In the illustrated embodiment, the components of the control unit 12 are arranged on a separate circuit board 121, distinct from the first and second circuit boards 111 and 112. Alternatively, the components of the control unit 12 can also be arranged either on the first circuit board 111 or on the second circuit board 112; in this case, the separate circuit board 121 for the control unit 12 would be omitted.

[0044] Furthermore, the electrical power supply 13 is located inside the handle 4, for example in the grip section 41. Batteries, for example, can be used as the power supply 13. To allow for easy replacement, the front cover 9 of the handle 4 can be designed to be removable. This provides easy access to the interior of the handle 4.

[0045] Fig. 3Figure 1 shows an exemplary and schematic perspective view of the door handle 1 according to the invention, with the front cover 9 removed and the interior of the handle 4 visible in the area of ​​the grip section 41. The power supply 13 of the door handle 1, e.g., batteries, is arranged in the interior of the handle 4. Along the inner surfaces of the handle 4, which extend along axis A, the circuit boards 111, 112 for the sensors for evaluating the inputs via the number and / or character keys 611 of the control units 61, 62 are arranged, for example. In the area of ​​the interior of the handle, where the grip section 41 transitions into the neck section 42, the control unit 12 is arranged, for example. This unit evaluates the identification data, such as entered access codes, fingerprints, or read RFID chips and / or RFID cards, and then, if identification is successful, controls the coupling device 15 accordingly.

[0046] Furthermore, the door handle 1 may be configured to establish a mobile communication connection, in particular via Bluetooth or WLAN, to a mobile device such as a mobile phone, smartphone, tablet, etc. This allows identification for opening the door or triggering the coupling device 15 in the door handle 1 – i.e., establishing the functional connection between the handle 4 of the door handle 1 and the actuating element for operating the latch 31 – to also be carried out via an application on a mobile device.

[0047] Furthermore, this communication link can be used, for example, to administer the electronic door handle 1 and to register access media such as fingerprint sensors 8, RFID units (e.g., RFID chips and / or RFID cards), and / or to manage access codes. Using the mobile device application, access authorizations can be easily modified or limited to specific times via access codes, fingerprints, etc. In addition, the application allows users to view access logs and / or information about the time of access, the access medium used, and / or the identification method employed. Reference symbol list

[0048] 1 Electronic door handle 2 Door or door leaf 3 Opening and / or closing mechanism 31 Latch 4 Handle or door grip 41 Handle section 42 Handle neck section 5 Door handle rosette 51 Mounting element 52 Cover 61 Control unit 611 Number and / or character keys 62 Additional control unit 71 First side of handle 72 Second side of handle 8 Fingerprint sensor 9 Front cover of handle 10 Door handle housing 111 Circuit board with sensors of the control unit 112 Circuit board with sensors of the additional control unit 12 Control unit of the door handle 121 Circuit board of the control unit 13 Electrical power supply 14 Bracket for the actuating element (square shaft) 15 Electromechanical coupling device 151 Electromotor drive 152 Coupling element 16 Drive bracket 17 Sensor for reading an RFID unit R-axis of swivel or rotation of the actuating element A-axis of the handle section

Claims

1. Electronic door handle (1) for keyless operation of an opening and / or closing mechanism (3) of a door (2), in particular an interior door, comprising at least a handle (4), an electromechanical coupling device (15) with a coupling element (152) and an electromechanical drive (151) for moving the coupling element (152), a control unit (12) for evaluating an identification and for controlling the electromechanical coupling device (15) after successful identification, wherein the coupling element (152) is moved by the electromechanical drive (151) such that an operative connection is established between an actuating element preferably rotationally fixed to the opening and / or closing mechanism (3) of the door (2) and the handle (4) for opening the door (2), and an electrical power supply (13), wherein the electromechanical coupling device (15),the control unit (12) and the power supply (13) are arranged in the handle (4) and the handle (4) has an operating unit (61) via which identification can be carried out by entering an access code, characterized by the fact that the control unit (61) is arranged on a first side (71) of the handle (4), and that The handle (4) has a further operating unit (62) for entering the access code on a second side (72) opposite the first side (71), wherein the first side (71) and the second side (72) of the handle (4) are each arranged normal to a door leaf of the door (2) in a mounted state of the door handle (1).

2. Door handle (1) according to claim 1, characterized by the fact that In a mounted state of the door handle (1), the operating unit (61, 62) of the handle (4) can be activated for entering the access code, which is located on a side (71, 72) of the handle (4) that forms a top of the handle (4) in the mounted state of the door handle (1).

3. Door handle (1) according to claim 1 or 2, characterized by the fact that In the installed state of the door handle (1) at least one operating unit (61, 62) can be activated by touch.

4. Door handle (1) according to one of claims 1 to 3, characterized by the fact that The respective control unit (61, 62) has at least a touchpad with number and / or character keys (611) for entering the access code or a keypad with number and / or character keys (611) for entering the access code and a light, in particular LEDs, wherein the respective control unit (61, 62) can be illuminated by the light when activated.

5. Door handle (1) according to one of claims 1 to 4, characterized by the fact that the door handle (1) has a proximity sensor for detecting an approaching person and / or a light sensor, wherein the proximity sensor and / or the light sensor are arranged in the handle (4).

6. Door handle (1) according to one of claims 1 to 5, characterized by the fact that the control unit (12) and sensors for evaluating inputs via the respective operating units (61, 62) are arranged on separate circuit boards (111, 112, 121) which are arranged in the handle (4).

7. Door handle (1) according to one of claims 1 to 5, characterized by the fact that the control unit (12) is arranged on one of the circuit boards (111, 112) on which the sensors for evaluating inputs via the respective operating units (61, 62) are arranged, wherein the circuit boards (111, 112) are arranged in the handle (4).

8. Door handle (1) according to one of claims 1 to 7, characterized by the fact that the control unit is designed to determine and evaluate the access code for identification from a string of numbers and / or characters entered via the respective operating unit (61, 62), wherein the string of numbers and / or characters has a predetermined length.

9. Door handle (1) according to one of claims 1 to 8, characterized by the fact that the door handle (1) has a fingerprint sensor (8) for identification on the handle (4), in particular on a front side of the handle (4) facing away from the door leaf (2).

10. Door handle (1) according to one of claims 1 to 9, characterized by the fact that the door handle (1) has at least one sensor (17) for reading an RFID unit, via which identification can be carried out.

11. Door handle (1) according to one of claims 1 to 10, characterized by the fact that the door handle (1) is designed to establish a mobile communication connection, in particular via Bluetooth or WLAN, to a mobile device.

12. Door handle (1) according to one of claims 1 to 11, characterized by the fact that the door handle (1) is part of a door fitting and can be mounted at least on one outside of the door leaf (2), in particular an interior door.

13. Door fitting for a door (2), in particular an interior door, comprising a door handle (1) according to one of claims 1 to 12, which can be mounted on an outside of the door leaf (2), and wherein the door fitting comprises the actuating element and a further door handle.

14. Door fitting according to claim 13, characterized by the fact that the further door handle, which can be mounted on an inside of the door leaf (2), is also a door handle (1) according to one of claims 1 to 12.

15. Door fitting according to claim 12, characterized by the fact that The additional door handle, which can be mounted on an inside of the door leaf (2), is connected to the actuating element in such a rotationally fixed manner in the mounted state that the door (2) can always be opened using the handle of the additional door handle.

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