DE102019111872A1 - Integrated unlocking device - Google Patents

Abstract

The invention relates to an unlocking device (1) for a door (27) or a gate. In order to reduce the structural effort when installing a door (27) or a gate with several functions, an unlocking device (1) with a housing (2), an actuating element (3) and a power transmission part (6) is proposed, the power transmission part (6) is adjustable in the longitudinal direction (LR) of the unlocking device (1) and can act on a lock and unlock it, and wherein the power transmission part (6) is adjustable by means of the actuating element (3) via at least one gear (5), thereby characterized in that a locking device (8) for the optional locking of the power transmission part (6) and a drive (7) for the optional adjustment of the power transmission part (6) are provided

Description

The present invention relates to an unlocking device for a door or a gate, with a housing, an actuating element and a power transmission part, the power transmission part being adjustable in the longitudinal direction of the unlocking device and being able to act on a lock and unlock it, and by means of the actuating element via at least one Gear is adjustable.

Such unlocking devices are known and are used, for example, on doors that have to meet requirements for a building to be evacuated. In order to ensure that the door can be opened easily in the event of a panic, release devices are usually provided in the form of panic fittings. Such panic fittings usually extend over the entire width of the door and have a push rod as an actuating element, which is actuated even in the event of an uncoordinated movement of a fleeing person against the door.

The doors, which can be single or multi-leaf doors, for example, on which such unlocking devices can usually be used, are located, for example, in public buildings and usually have to fulfill a large number of different functions. For example, they must be lockable in everyday life, but at the same time evacuated, unlocked remotely and both authorized at the door and unlockable by otherwise unauthorized persons in the event of a panic. Furthermore, it can also be provided that the doors can be opened automatically. Disadvantageously, different functional components must be provided on the door and connected to one another and / or interconnected, such as a panic fitting, a motor lock, a magnetic lock on the frame of the door and / or a swing leaf drive. The structural effort to accommodate several functions on the door is disadvantageously high. For a functional part to be retrofitted, control and supply lines may also have to be re-laid and the functional parts must be integrated into the system in a complex manner.

The object of the invention is therefore to reduce the structural effort.

The object is achieved with an unlocking device which has the features of claim 1. The object is also achieved with a system according to claim 22. Advantageous configurations of the invention are specified in the subclaims.

According to the invention, a locking device for optionally locking the power transmission part and a drive for optionally adjusting the power transmission part are provided on the unlocking device. With such an unlocking device, it is surprisingly possible to map a large number of the relevant functions on a door with only one functional part, namely the unlocking device. The locking device can be used to completely prevent unlocking and thus opening of the door from the side on which the unlocking device is arranged. At the same time, when the locking device is unlocked, the drive can be used to automatically unlock the door remotely and to make it accessible from the opposite side of the unlocking device if there is no other unlocking device on this side. For authorized unlocking from the door side on which the unlocking device is arranged, the locking device can be temporarily released by means of an authorization query and the door can be unlocked by manual actuation of the unlocking device or by the drive. In order to be able to activate the locking device in everyday life, but at the same time to ensure evacuation, the locking device can be controlled in such a way that it unlocks with a time delay after an unlocking attempt with an existing lock and in the meantime triggers an alarm to draw attention to any unauthorized use, if there is no actual reason to flee.

Advantageously, significantly fewer independent functional parts have to be arranged on the door with the unlocking device. The solution according to the invention can be installed and used much more easily and offered much more cheaply than the combination of several independent functional parts. In addition, only a cable harness with supply and signal lines has to be provided, which can be easily guided into the unlocking device on the hinge side of the door. Last but not least, the door is also visually more appealing because the functions are accommodated in the unlocking device.

It is also possible with little effort to provide unlocking devices without locking device and / or drive with corresponding connections and cable harnesses, so that retrofitting of the respective part is easily possible.

The locking device and the drive can be designed to be compact and can be installed in the unlocking device despite the only small amount of free space. It is particularly preferred if the drive has a rotary motor and a drive gear with at least one rotary element, wherein the drive gear translates the rotary movement of the rotary motor into a linear movement of the power transmission part, and the drive gear has at least one connecting rod which acts on the power transmission part and is rotatably supported at a coupling point on the rotary element. By means of the connecting rod it is possible to create a non-linear force transmission from the drive to the force transmission part, which compensates for the force profile to be applied to the lock when the door is unlocked. When the door is unlocked, the power transmission part must work against a lock spring, the resistance of which increases in the course of the unlocking process. The translational movement of the force transmission part is also usually translated into a rotational movement of a lock part, for example on a lock socket. In addition to the lock spring, this translation requires a non-linearity of the force to be applied by the force transmission part. Due to the translation on the drive, the rotary motor is nevertheless evenly loaded and can be designed to be compact and small, so that the drive only requires little space.

In a drive as described above, the distance between the coupling point and a point of application of the connecting rod on the power transmission part changes when the power transmission part is adjusted by means of the drive transversely to the longitudinal direction of the unlocking device, so that the force transmitted to the power transmission part changes, in particular increases, over the adjustment path of the rotary element.

It is advantageous if the drive cannot block the power transmission part or prevent it from moving when the unlocking device is to be operated manually via the actuating element. For this purpose, a corresponding freewheel should be provided between the rotary motor and the power transmission part. In principle, such a freewheel can be provided at any point on the drive gear between the rotary motor and the power transmission part. In the case of a connecting rod which engages a pin, it is preferred that the freewheel is provided between these parts and that the connecting rod and pin can move against one another. For this purpose, the connecting rod can have a recess, in particular an elongated hole, in which the pin can move without exerting a force on the connecting rod or without moving the connecting rod so that it works against a resistance of the drive gear and the rotary motor must perform. Advantageously, a user only has to apply the force required to unlock the door to the actuating element. There must be a coupling in the other direction in which the connecting rod acts on the power transmission part when the drive is actuated.

Furthermore, it is preferred if the locking device has a first and a second locking element and an electromagnet, the first locking element being mounted on the power transmission part and the second locking element fixed to the housing, and the first locking element being adjustable by the electromagnet transversely to the longitudinal direction of the unlocking device is, so that the locking elements can be brought into engagement with each other for blocking, the locking elements having contact surfaces which correspond to one another in such a way that when there is contact between the contact surfaces and a force acting on the power transmission part in the longitudinal direction of the unlocking device, a force is exerted on the first locking element transversely to Direction of movement of the power transmission part arises. For example, contact surfaces can be provided which are arranged obliquely to the stroke direction of the electromagnet, that is to say to the direction in which the electromagnet moves the locking elements relative to one another in order to bring them into engagement with one another. The contact surfaces then form an inclined plane and slide off one another after overcoming the static friction. In this way it can be ensured with the locking element that in the event of panic it unlocks safely after a time delay, even if a force is constantly exerted on the actuating element, because the locking elements are driven apart by the resulting force on the power transmission part. It is then not possible for the locking elements to be blocked by the incessant force on the actuating element. It is also preferred if the locking elements have multiple contact surfaces, for example distributed over a large number of relatively low teeth, so that the magnet stroke for inserting the locking elements can be made as small as possible. In this way, the locking device can also be made as compact as possible.

In particular, several projections can be formed on both locking elements which engage between projections of the other locking element and on which the contact surfaces are formed. If several projections work together in order to ensure that the necessary locking force is maintained, each individual projection can clearly not be any, as if a single projection alone had to withstand the entire locking force. Such a reduction in the size of the projection essentially results in a reduced height of the projections. As a result, the stroke, ie the distance by which the electromagnet draws the armature towards itself, or the distance by which the locking elements are adjusted relative to one another, can be reduced and the entire locking device can be made more compact. In particular, the maximum locking force can also be increased without increasing the stroke, namely by providing more projections, the contact surfaces of which become a large contact surface add. In particular, a plurality of projections can be arranged one behind the other and parallel to one another in the longitudinal direction of the unlocking device, because the available installation space is greatest in this direction. As a result, the entire locking device can have a long, narrow and flat shape with which it can be fitted particularly advantageously into the unlocking device. With a magnet stroke of 0.5-1.0 mm, in particular 0.8-1.0 mm, the locking device can be designed to be particularly compact.

In particular, the projections can be designed as teeth, the tooth flanks then forming the contact surfaces. The teeth can have a triangular cross-section. Such teeth are advantageously well suited to absorb high transverse forces.

In order to prevent the contact surfaces from slipping from one another in the locked state, the angle that the corresponding contact surfaces assume relative to the stroke direction should be as small as possible. At the same time, it must be ensured that the contact surfaces can slide off one another even with high sustained forces at the time the lock is released. The angle between the corresponding contact surfaces and the stroke direction of the electromagnet is preferably between 3 and 25 °, particularly preferably between 5 and 15 °.

It is particularly preferred that the electromagnet and armature are provided separately from the locking elements and are not formed by them, so that the materials for the locking elements can be selected and processed during manufacture independently of any magnetic properties. It is particularly advantageous if the locking elements are not magnetic, so that they can be guided mechanically during adjustment by electromagnets and / or armatures without being deflected by the magnetic force.

In a preferred embodiment, one locking element is connected to the electromagnet and the other locking element is connected to an armature, or the locking elements are held by these in a form-fitting manner at least in the direction of movement of the power transmission part. In particular, the electromagnet and / or the armature can reach through recesses in the locking elements. In this way, a very compact arrangement can be created, in which recesses can also be arranged centrally on the locking elements, so that the lifting force acts uniformly in the locking elements. The locking elements can also be moved directly with the electromagnet or the armature, so that no further transmission for power transmission between the electromagnet or armature and the locking element is necessary.

In addition, a reset device, in particular in the form of a spring, can be provided which exerts a force on the first locking element in such a way that it is moved away from the second locking element without any further external force. This also ensures that the locking elements are pulled apart and safely disengaged, even if no force is acting on the operating element at the time the locking device is released. In the case of a small magnet stroke, the reset device also advantageously only has to act over a small path and can accordingly be designed simply and compactly.

The first locking element must be securely connected to the power transmission part in order to transmit forces in the longitudinal direction of the unlocking device between these two parts. It is therefore particularly preferred that a recess is formed on the power transmission part, in which the first locking element is mounted. In particular, the first locking element can be fitted in the recess, so that forces in the direction of movement of the force transmission part can be safely transmitted between the first blocking element and the force transmission part. As a result, the arrangement can advantageously be made relatively flat and compact. The first locking element must then be mounted in such a way that it can be moved transversely to the direction of movement of the force transmission part so that it can engage in the second locking element. A reset that pulls or presses the first locking element into the recess on the power transmission part can be formed in a simple manner by a spring plate which is connected to the power transmission part, in particular engages in the longitudinal direction. The reset mechanism can also secure the first locking element in the recess or secure it in addition to other fastening means.

The drive and the locking device are preferably arranged between two gears and act on the power transmission part. Usual panic fittings usually have two gears which are arranged in the area of the outer ends of the actuating element. Most of the free installation space is present between these two gears, so that this area is particularly well suited for providing the components mentioned. The unlocking device then does not have to be changed in its external shape for the installation of the drive and the locking device compared to previously known unlocking devices.

In a preferred embodiment, the unlocking device has an alarm device or is connected to an alarm device. This can be arranged directly on the unlocking device and emit a signal tone, for example through a loudspeaker on the unlocking device, or output a signal optically by optical means. The unlocking device can, however, also trigger a building alarm or an alarm device in a building control center or on a terminal of a person provided for this purpose, for example via radio or via a signal line. Thus, in the case of an unlocking device that is blocked in everyday life, the alarm can be triggered when the actuating element is operated or an attempt is made to operate the actuating element. Corresponding responsible persons can then immediately become aware of any unauthorized use and react, for example by checking whether there is actually an unauthorized attempt at use. If the locking device, as described above, unlocks the door with a time delay after the first attempt to operate the actuating element for reasons of evacuation, the alarm can still prevent the unauthorized person from passing through the door or at least notice it. The alarm can also be switched in several stages. For example, the first attempt at operation can only trigger a pre-alarm, while an actual unlocking after the time delay leads to a main alarm. If unlocking does not take place after the time delay, for example because an unauthorized person has operated the actuating element accidentally or in good faith, but refrains from doing so when he or she notices the lock, the locking device can lock the door again after a further time delay.

In a further particularly preferred embodiment, the unlocking device has optical means, in particular for displaying the position of the locking device and the drive. In this way, information can be transmitted directly to people standing in front of the unlocking device. The unlocking device can have, for example, LED strips as optical means, which can light up in color, such as red and / or green, in order to indicate in a simple manner whether the unlocking device is locked or not. A flashing LED bar in connection with an alarm can also indicate the alarm. It is also possible that different texts or symbols are reproduced on the unlocking device via the optical means, which reproduce the information instead of or in addition to the colors described. For example, a display is possible which extends over a particularly large part of the front surface of the actuating element and on which scrolling text or a symbol is shown. Particularly preferably, the unlocking device has a projector as the optical means, which projects an image onto a surface in the vicinity of the door or gate. In this way, more complex information can also be displayed. In the event of a fire, for example, an escape route or escape route symbol can be projected onto the floor.

In particular, it is also possible that an input means for emergency unlocking, such as an emergency button and / or the actuating element, is indicated via the optical means. Operating instructions can also be conveyed to a user via the optical means. For example, an indication that an emergency button must be pressed to unlock the unlocking device can be displayed optically or visually.

The locking device and the drive can be operated by any conceivable control element. For example, they can be controlled by an operating element directly on the unlocking device, by an operating element in the immediate vicinity of the door or gate or by a remote control, for example from a building control room. The signals required for control can be fed to the unlocking device, for example by radio or via a signal line. A control element in the immediate vicinity of the door or gate can be a control terminal. In this case, the housing of the unlocking device can have a passage for supply and signal lines. The supply and signal lines can then be bundled out of the unlocking device at the same point and can also be bundled in the wall adjacent to the door. A transfer between the unlocking device and the wall on the hinge side of the door can particularly preferably be provided. Multiple cabling to functional parts at different points on the door and the work involved in assembly are not necessary.

A control terminal for the unlocking device can be used, for example, with which authorized unlocking and emergency unlocking is possible. No means for authorized unlocking, such as an additional lock, then have to be attached to the unlocking device. A number field for entering a code can be provided as a means for the authorized unlocking of the door. With an input means for emergency unlocking, a circuit for the time-delayed unlocking of the locking device after the actuation element has been operated can be dispensed with. In the event of an accidental actuation of the actuating element, no alarm then has to be triggered, so that the probability of a false alarm due to unintentional or bona fide actuation is reduced. An emergency button, for example, can be provided as an input means for emergency unlocking. They are advantageous Users are used to emergency buttons and use them intuitively in an emergency.

When using the unlocking device, instructions for operating the unlocking device can be given to a user. For example, when the actuating element is actuated with the locking device locked, it can be indicated that the emergency button is to be used, for example in the form of an arrow on the emergency button, in the form of an acoustic instruction or in the form of the emergency button lighting up. In the same way, for example, reference can also be made to a time delay in the unlocking of the unlocking device after the actuation element has been actuated for the first time. In this way it can advantageously be avoided that the user does not consider the door to be unlockable in the event of a panic.

• 1: eine Tür mit einer Entriegelungsvorrichtung nach dem Stand der Technik sowie mit einem Motorschloss, einer Magnetsperre und einem Steuerterminal;
• 2: eine Tür mit einer erfindungsgemäßen Entriegelungsvorrichtung und einem Steuerterminal;
• 3: eine Entriegelungsvorrichtung in perspektivischer Ansicht von außen;
• 4: eine erfindungsgemäße Entriegelungsvorrichtung von Innen ohne dargestelltes Betätigungselement;
• 5: eine Sperrvorrichtung in perspektivischer Schnittansicht;
• 6: eine Sperrvorrichtung in seitlicher Schnittansicht in entsperrter Stellung;
• 7: eine Sperrvorrichtung in seitlicher Schnittansicht in gesperrter Stellung;
• 8: eine perspektivische Ansicht eines ersten Sperrelements;
• 9: eine perspektivische Ansicht eines zweiten Sperrelements;
• 10: einen Antrieb von Innen in einer ersten Stellung;
• 11: einen Antrieb von Innen in einer zweiten Stellung;
• 12: einen Antrieb von Innen in einer dritten Stellung;
• 13: ein Steuerterminal;
• 14: eine weitere Ausführungsform der erfindungsgemäßen Entriegelungsvorrichtung mit einem Projektor;
• 15: ein Ablaufdiagramm eine Notentsperrung oder einer berechtigten Entsperrung der Entriegelungsvorrichtung;
• 16: ein Ablaufdiagram einer automatischen Entsperrung der Entriegelu ngsvorrichtu ng.

In the following, the invention is described with reference to figures, in which preferred embodiments of the invention are shown. Show it:

• 1 : a door with an unlocking device according to the prior art and with a motor lock, a magnetic lock and a control terminal;
• 2 : a door with an unlocking device according to the invention and a control terminal;
• 3 : an unlocking device in a perspective view from the outside;
• 4th : an unlocking device according to the invention from the inside without the actuating element shown;
• 5 : a locking device in a perspective sectional view;
• 6th : a locking device in a side sectional view in the unlocked position;
• 7th : a locking device in a side sectional view in the locked position;
• 8th : a perspective view of a first locking element;
• 9 : a perspective view of a second locking element;
• 10 : a drive from the inside in a first position;
• 11 : a drive from the inside in a second position;
• 12 : a drive from the inside in a third position;
• 13 : a control terminal;
• 14th : Another embodiment of the unlocking device according to the invention with a projector;
• 15th : a flowchart of an emergency unlocking or an authorized unlocking of the unlocking device;
• 16 : a flow chart of an automatic unlocking of the unlocking device.

1 shows a door 27 with an unlocking device 1 state-of-the-art operated by means of tapes 36 is hung in a door frame, not shown. At the door 27 is next to the unlocking device 1 a magnetic lock 29 as well as a motor lock built into the door leaf 30th arranged. The magnetic lock 29 points to the door frame, not shown, of the door 27 a holding magnet 31 and an anchor on the door side 32 on. Becomes the holding magnet 31 activated, the anchor is activated 32 held by the resulting magnetic force and the door 27 is thus prevented from swinging up. Next to the door 27 is a control terminal on the wall surrounding the door frame 23 arranged. A first line leads from the control terminal 33 to the magnetic lock 29 , being the first line 33 is laid under plaster. There is also a second line 34 from the control terminal 23 concealed up to the hinge side 35 the door 27 and then through the door leaf to the motorized lock 30th . This requires a complex drilling through the entire door leaf, because the second line 34 can only be brought up to the door on the hinge side while the motor lock 30th is arranged on the opposite side. In addition to the in 1 Components shown can also be a door opener (not shown) on the door 27 be provided, for example on the upper side of the door 27 on the hinge side, which must also be wired. If a door opener is provided, a motor lock must also be used 30th be provided which the door 27 can unlock automatically before it is opened by the door opener.

2 shows a door 27 with an unlocking device according to the invention 1 , in which a locking device, which is a magnetic lock 29 replaced, as well as a drive that the motor lock 30th replaced, are arranged. Instead of the motor lock 30th a common door lock such as a mechanical panic lock can be installed that is simple in design and does not require a power supply. Next to the door 27 is a control terminal 23 arranged, which via a line 36 concealed up to the hinge side 35 the door 27 and then into the unlocking device 1 is introduced. In contrast to the prior art according to 1 the solution according to the invention is much simpler and requires fewer parts. In particular, only one line needs 36 be laid over a relatively short distance, which also does not have to be passed through the door leaf. Should inside the unlocking device 1 a part that provides a power supply or a signal connection to the control terminal 23 If required, are retrofitted, additional lines can already be provided for this. The part can then be retrofitted in a simple manner without the need to lay lines again and in particular without the plaster having to be opened.

3 shows an unlocking device 1 with a housing 2 and an actuator 3 in the form of a push rod. Furthermore, the unlocking device 1 End caps 4th each with a fixed one on the housing 2 molded lower part 4a and one with the actuator 3 jointly movable upper part 4b . The actuator and the upper parts 4b the end caps 4th can unlock a door, not shown 27 in the housing 2 be pushed in.

From the in 4th Detailed view shown can be seen that inside the unlocking device 1 two gears 5 are arranged by means of which the movement of an actuating element, not shown 3 when pressing into the housing 2 on a power transmission part 6th is transmitted, which extends in the longitudinal direction LR of the unlocking device 1 can move and thereby acts indirectly or directly on a lock, such as a lock socket, to unlock the lock. The power transmission part 6th couples the two gears 5 together.

On the power transmission part 6th act as a drive 7th and a locking device 8th , each below the power transmission part 6th on the housing 2 are attached. The drive 7th can the power transmission part 6th Adjust in the longitudinal direction LR while the locking device 8th the power transmission part 6th can fix and thus prevent any movement. Furthermore are on the unlocking device 1 optical means 9 arranged in the form of LED strips, by means of which color codes can be displayed, which a user for example about the position of the locking device 8th to inform.

In the 5 to 7th is the locking device 8th shown in detail. The power transmission part 6th reaches through the locking device 8th , taking guides 11 the position of the power transmission part 6th at right angles to its direction of movement, which corresponds to the longitudinal direction LR. On the power transmission part 6th is inside the locking device 8th a recess 12 provided in which a first locking element 13 rests with a toothing on the top and over leaf springs 14th is held. At the locking device 8th is a second locking element 15th mounted with a toothing on its underside, the two locking elements 13 , 15th or their teeth can be brought into engagement with one another. That's what an electromagnet is for 16 provided of an anchor 17th Adjusted via a stroke upwards. The anchor 17th engages behind the first locking element 13 and pulls it against the leaf springs 14th with upwards so that it is in the second locking element 15th intervenes. This is the first locking element 13 not entirely out of the recess 12 pulled out so that the power transmission part 6th is inhibited in its movement in the longitudinal direction LR.

The 6th and 7th show the locking device 8th in side sectional view, with in 6th the locking device 8th is unlocked and in 7th is blocked or blocked. The teeth of the locking element 13 , 15th that are in the 8th and 9 are shown individually, each have short flanks 13a , 15a and long flanks 13b , 15b that come into contact with each other, the short flanks 13a , 15a in one attempt, the power transmission part 6th To move in the longitudinal direction LR, the locking of the unlocking device 1 effect. These short flanks 13a , 15a are understood here as contact surfaces and are not arranged orthogonally to the longitudinal direction LR, but rather slightly inclined. This is to keep the locking elements 13 , 15th by a force in the longitudinal direction LR on the power transmission part 6th be driven apart when the electromagnet 16 is switched off. So the lock is safely released when the electromagnet 16 is switched off, even if at this point in time a force is incessantly applied to the actuating element 3 and thus on the power transmission part 6th is exercised. Jamming of the locking elements 13 , 15th can thus be avoided. The angle of the contact surfaces in relation to the longitudinal direction LR or in relation to the stroke direction HR of the electromagnet 16 , is chosen so that when the electromagnet is energized 16 the magnetic force clearly exceeds the resulting force. A secure blocking is guaranteed

The 10 , 11 and 12 show detailed views of the drive installed on the unlocking device according to the invention 7th from within. In 10 the starting position is shown, the drive 7th and power transmission part 6th occupy when the actuator 3 is not depressed and the drive 7th is not operated. 11 shows the position, the drive 7th and power transmission part 6th occupy when the power transmission part 6th by means of the drive 7th was moved in the longitudinal direction LR to unlock the lock. 12 shows the position in which the drive is 7th and power transmission part 6th located when the actuator 3 is operated manually, the drive 7th but is not operated.

The drive 7th has a rotary motor 18th as well as a drive gear 19th on that the motor shaft 19a as well as several gears 19b , 19c , 19d and 19e includes. On the gear 19e is at a crosspoint KP that of the center point M. of the gear 19e is spaced, the connecting rod 20th rotatably mounted. The middle-point M. of the gear 19e intersects the axis of motion BA of the power transmission part 6th . The connecting rod 20th continues to attack at one point of attack AP by one on the power transmission part 6th attached pin 21st is formed on the power transmission part 6th at. The rotary motor turns to unlock the lock 18th the motor shaft 19a , with the motor shaft 19a the gears 19b , 19c , 19d and 19e of the drive gear 19th moved, whereupon the crosspoint KP the connecting rod 20th on the gear 19e is twisted. By the rotation of the gear 19e the angle α changes between the longitudinal axis PA the connecting rod 20th and the axis of motion BA of the power transmission part 6th . By reducing the angle α up to a 0 ° position in the completely extended position of the connecting rod 20th according to 7th , the proportion of force exerted by the connecting rod increases 20th in the longitudinal direction LR, which is the direction of movement of the power transmission part 6th is from the drive 7th on the power transmission part 6th can be applied. The distance A between the coupling point is reduced during unlocking KP and the point of attack AP . The coupling point KP moves in the transverse direction QR to the point of application AP to, being the connecting rod 20th is twisted. In the course of unlocking, the transmission ratio therefore drops and it can be done with the output of the rotary motor remaining the same 18th a greater force on the power transmission part 6th be applied. The drive 7th ultimately has a connection terminal 22nd on which supply and signal lines can be attached.

13 shows a control terminal 23 , which is a first control element 24 in the form of an input field and a second control element 25th includes in the form of an emergency button. Via the first control element 24 Authorized release of the unlocking device is possible. If an authorized person enters the correct code, the locking device is activated 8th unlocked, the electromagnet 16 is switched off, so that the locking elements 13 , 15th break away from each other. The unlocking device 1 is then operable so that the door 27 or the lock can be unlocked. It is also possible that after an authorized entry of a code on the first control element 24 first the locking device 8th is unlocked and then the drive 7th the unlocking device 1 operated so that the door 27 only has to be pushed on or pulled up. It is also possible, for example, with a second code, the locking device 8th optionally to activate or permanently deactivate or the drive 7th permanently in its extended position so that the door 27 can be opened permanently without prior unlocking. The optical means 9 During such a change, you can change your color to lock or unlock the door 27 to display.

In the event of a panic, the unlocking device 1 by means of the second control element 25th can be unlocked. That means, if someone presses the emergency button, the locking device is activated 8th released and the unlocking device 1 can via the actuating element 3 operated to the door 27 to open. If the emergency button is pressed, an alarm can be triggered which, if the emergency button is misused, can alert building staff to the abuse. In addition, the optical means 9 can be switched to another color, for example from red when the locking device is locked to green when the locking device is unlocked 8th . The optical means 9 can for example also flash when an alarm is triggered.

The control terminal 22nd also has an explanatory field 26th on which the use of the emergency button is outlined for explanation.

14th shows a further embodiment of the unlocking device 1 that on a door 27 is appropriate. The unlocking device 1 has an opening or lens on its underside through which a projector, instead of or in addition to in 2 LED strips shown on the unlocking device 1 is arranged as an optical means, an image 28 on the floor in front of the door 27 can project. The picture in this case is an indication that the preferred escape route is through the door 27 leads. Other images are also conceivable, such as a stop sign or the words “Only staff”.

The 15th shows a flow diagram for an emergency unlocking of the unlocking device 1 via an emergency button or an unlock command. Here is the locking device 8th initially active, whereby the LED bar lights up red. Is it through the emergency button 25th deactivated, the lock is deactivated and the LED bar changes to green light. Then the locking device 8th held unlocked until reset. Will the locking device 8th addressed by an authorized unlock command, it unlocks, the LED bar changes to green light and the drive 7th actuates the unlocking device 1 to unlock the door 27 . Then the locking device 8th activated again.

16 shows a flow diagram of the unlocking of the door 27 through the drive 7th . The unlocking device 1 through the drive 7th operated or the door 27 is by means of the drive 7th unlocked. The door 27 can be temporarily unlocked by a corresponding control command, in which case no permanent unlocking is set. The door 27 is then automatically locked again. If a permanent unlocking is set, for example by another control command, the drive becomes 7th permanently in the unlocked position according to 11 held and the door 27 is permanently unlocked.

Claims (31)

Unlocking device (1) for a door (27) or a gate, with a housing (2), an actuating element (3) and a power transmission part (6), the power transmission part (6) being adjustable in the longitudinal direction (LR) of the unlocking device (1) is and can act on a lock and unlock it, and wherein the power transmission part (6) can be adjusted by means of the actuating element (3) via at least one gear (5), characterized in that a locking device (8) for optionally locking the power transmission part ( 6) and a drive (7) for optional adjustment of the power transmission part (6) are provided. Unlocking device (1) Claim 1 , characterized in that the drive (7) has a rotary motor (18) and a drive gear (19) with at least one rotation element (19a, 19b, 19c, 19d, 19e), the drive gear (19) the rotary movement of the rotary motor ( 18) translated into a linear movement of the power transmission part (6) and wherein the drive gear (19) has at least one connecting rod (20) which acts on the power transmission part (6) and is rotatable at a coupling point (KP) on the rotary element (19a, 19b , 19c, 19d, 19e) is stored. Unlocking device (1) Claim 2 , characterized in that the distance of the coupling point (KP) to an application point (AP) of the connecting rod (20) on the power transmission part (6) when adjusting the power transmission part (6) by means of the drive (7) transversely to the longitudinal direction (LR) of the Unlocking device (1) changed, so that the force transmitted to the force transmission part (6) changes over the adjustment path of the rotary element (19a, 19b, 19c, 19d, 19e). Unlocking device (1) according to one of the Claims 2 or 3 , characterized in that a freewheel is provided between the rotary motor (18) and the power transmission part (6), by means of which the power transmission part (6) can move relative to the drive (7), provided that the drive (7) is in its starting position. Unlocking device (1) according to one of the Claims 2 to 4th , characterized in that the connecting rod (20) engages on the output side on a pin (21) which is arranged on the power transmission part (6), whereby the pin (21) and connecting rod (20) can move against each other when the actuating element (3) is actuated . Unlocking device (1) Claim 5 , characterized in that the connecting rod (20) has a recess into which the pin (21) engages. Unlocking device (1) Claim 6 , characterized in that the recess is an elongated hole. Unlocking device (1) according to one of the preceding claims, characterized in that the power transmission part (6) for unlocking a lock and in particular for opening the door (27) or the gate can be adjusted by means of the drive (7). Unlocking device (1) according to one of the preceding claims, characterized in that the locking device (8) has a first and a second locking element (13, 15) and an electromagnet (16), the first locking element (13) on the power transmission part (6 ) and the second locking element (15) is firmly mounted on the housing (2), and wherein the first locking element (13) can be adjusted by the electromagnet (16) transversely to the longitudinal direction (LR) of the unlocking device (1), so that the locking elements ( 13, 15) can be brought into engagement with one another to block, the locking elements (13, 15) having contact surfaces which correspond to one another in such a way that when there is contact between the contact surfaces and a force acts on the force transmission part (6) in the longitudinal direction (LR) of the Unlocking device (1) creates a force on the first locking element (13) transversely to the direction of movement of the force transmission part (6). Unlocking device (1) Claim 9 , characterized in that the corresponding contact surfaces (13a, 15a) are aligned obliquely to the stroke direction (HR) of the electromagnet (16). Unlocking device (1) Claim 9 or 10 , characterized in that several projections are formed on both locking elements (13, 15) which can be brought into engagement between projections of the other locking element (15, 13) and on which the contact surfaces (13a, 15a) are formed. Unlocking device (1) according to one of the Claims 9 to 11 , characterized in that the projections are designed as teeth and tooth flanks (13a, 15a) of the teeth form the contact surfaces (13a, 15a). Unlocking device (1) according to one of the Claims 9 to 12 , characterized in that one locking element (13, 15) is connected to the electromagnet (16) and the other locking element (13, 15) is connected to or held by an armature (117). Unlocking device (1) according to one of the Claims 9 to 13 , characterized in that at least one reset device (14), in particular in the form of a spring, is provided which exerts a force on the first locking element (13) in the direction away from the second locking element (15). Unlocking device (1) according to one of the Claims 9 to 14th , characterized in that the power transmission part (6) has a recess (12) in which the first locking element (13) is mounted, wherein it is movably mounted in the stroke direction (HR) of the electromagnet (16). Unlocking device (1) according to one of the preceding claims, characterized in that the drive (7) and the locking device (8) are arranged between two gears (5) and act on the power transmission part (6). Unlocking device (1) according to one of the preceding claims, characterized in that the unlocking device (1) has at least one alarm device or is connected to an alarm device. Unlocking device (1) according to one of the preceding claims, characterized in that the unlocking device (1) has optical means (9) in particular for displaying the position of the locking device (8) and the drive (7). Unlocking device (1) Claim 18 , characterized in that the optical means (9) are formed by at least one projector. Unlocking device (1) according to one of the preceding claims, characterized in that the housing (2) has a passage for the supply and signal lines of both the locking device (8) and the drive (7). Unlocking device (1) according to one of the preceding claims, characterized in that the supply and signal lines required for supplying and controlling the locking device (8), the drive (7) and the optical means (9) are at the same point on the housing (2 ) the unlocking device (1) are led out of this. System comprising an unlocking device (1) according to one of the preceding claims and at least one control terminal (23), the locking device (8) and / or the drive (7) being able to be controlled via the control terminal (23). System according to Claim 21 , characterized in that the control terminal (23) has a first operating element (24) for authorized control of the unlocking device (1) and a second operating element (25) for unlocking the locking device (8) in an emergency. System according to one of the Claims 21 or 22nd , characterized in that the control terminal (23) is connected to the unlocking device (1) by signal line or by radio. A method for unlocking a door (27) or a gate with an unlocking device (1) according to one of the preceding claims, characterized in that, if the locking device (8) is in the locked state and the power transmission part (6) is locked, the locking device (8) is unlocked and then a drive (7) adjusts the power transmission part (6) in order to unlock the door (27) or the gate. Procedure according to Claim 25 , characterized in that the method is triggered by an authorized execution command which is entered or triggered in particular at a control terminal (23) connected to the unlocking device (1). Procedure according to Claim 26 , characterized in that the unlocking device (1) is locked again by means of the locking device (8) after a time interval and / or after a detected use of the door (27) or the gate. Procedure according to Claim 25 , characterized in that the method is triggered by an emergency signal, which is entered in particular at a control terminal (23) connected to the unlocking device (1). Procedure according to Claim 28 , characterized in that a user is made aware of at least one input means for the emergency signal and / or instructions for use for the unlocking device (1) and / or the door (27) or the gate via optical means (9). Method according to one of the Claims 25 to 29 , characterized in that when the actuating element (3) is actuated and the unlocking device (1) is actively blocked by the locking device (8), instructions are given, in particular by means of the optical means (9) and / or by means of acoustic means. Procedure according to Claim 30 , characterized in that the instructions relate to the use of the input means for the emergency signal and / or to waiting for a time delay.

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