EP3988744A1 - Door opener and method for determining a door state - Google Patents

Abstract

The invention relates to a door opener (1) for locking and releasing a door, comprising a housing (2), a pivot latch (3) arranged movably in the housing (2), a locking device (10) arranged in the housing (2) and designed for this purpose is to release the pivot latch (3) in a first blocking device state and to block the pivot latch (3) in a second blocking device state, an electrically controllable actuator (18) arranged in the housing (2) for actuating the blocking device, an im Housing (2) for detecting the closed door arranged first sensor (30) for generating the sensor signal states "door closed" and "door not closed", and a housing (2) for detecting a state of the pivot latch (3) arranged second sensor ( 40) to generate the sensor signal status "pivot latch released" and "pivot latch not released".

Description

The present invention relates to a door opener for locking and unlocking a door. Furthermore, the invention shows an arrangement with the door opener and a method for determining a door status.

For example, a door opener is off EP 2 527 570 A2 famous. Door openers are usually used in the door frame of a swing door. The door openers are often connected to a control unit, for example an intercom system. An actuator, for example an electromagnet, can be actuated in the door opener via the control unit in order to release the door opener so that the door can be opened.

Furthermore, there is in the prior art, for example in DE 10 2004 037 827 A1 , Door opener with a so-called feedback contact. The feedback contact detects via a sensor whether the lock latch of the door is in the door opener, which detects that the door is closed. However, the disadvantage here is that it cannot be checked whether the door is really secured and therefore cannot be opened by simply pressing it. The detected status "door closed" says nothing about whether the door opener blocks the door or has released it.

It is the object of the present invention to specify a door opener that enables safe operation of a door. Furthermore, a method for determining a door status is to be specified, which also enables the safe use of a door.

The object is solved by the features of the independent claims. The dependent claims relate to advantageous configurations of the invention.

The invention shows a door opener for locking and releasing a door. The door or door leaf that is to be locked or unlocked with the door opener has a standard lock latch. When the door is closed, this lock latch snaps into the door opener described here.

The door opener includes a housing. The housing is designed in particular to attach the door opener in the door frame. A movably arranged swivel latch is located in the housing. In particular, the pivot latch can be rotated relative to the housing about a pivot latch axis. The swivel latch axis is, in the usual installation position of the door opener, particularly vertical.

In particular, the swivel latch can assume two states, namely "swivel latch released" and "swivel latch not released". If the swivel latch is released, it can be rotated around its swivel axis with the appropriate pressure. This allows the door to be opened easily. The pressure on the swivel latch is generated by the load on the door or the lock latch. The load on the door, in turn, is applied by a user or an automatic door operator.

In the "pivot latch not released" state, the mobility of the pivot latch about its pivot axis is blocked. This secures the door when it is in the closed state.

The door opener also includes a locking device arranged in the housing. The locking device can assume two states:
The locking device is designed to release the pivot latch in a first locking device state. If the locking device is in its first locking device state, the mobility of the swivel latch is not blocked, but the swivel latch can rotate freely. accordingly the swivel latch is in the "swivel latch released" status. In particular, it is provided that the swivel latch can only be blocked by the blocking device.

Furthermore, the locking device is designed to lock the pivot latch in a second locking device state. In this second locking device state, the pivot latch is not released and cannot be rotated about its pivot axis. Accordingly, the pivot latch is in the "pivot latch not released" state.

The door opener also includes an actuator arranged in the housing. The actuator can be controlled electrically and is designed to actuate the locking device. The actuator is, for example, an electromagnet that can move the locking device or part of the locking device. In particular, it is provided that the locking device is held spring-loaded in the second locking device state. The actuator is preferably arranged to release the locking device and thus to move to the first locking device state for releasing the pivot latch.

A first sensor is preferably located in the housing. The first sensor is arranged to detect the closed door. Accordingly, the first sensor can detect whether the door is closed or not. The first sensor thus generates at least two sensor signal states. The two sensor signal states of the first sensor are preferably sensor signal states of a common sensor signal. The sensor signal states of the first sensor are referred to as "door closed" and "door not closed".

In particular, the states in which a lock latch engages in the door opener are referred to as "door closed". In particular, "door not closed" refers to the states in which a lock latch does not reach sufficiently deep into the door opener, even if a door leaf is in a door frame.

Furthermore, a second sensor is preferably arranged in the housing. The second sensor is arranged to detect the states of the swivel latch. In a first alternative, the second sensor can generate the two sensor signal states “pivoting latch released” and “pivoting latch not released”. In a second alternative, the second sensor can generate the two sensor signal states “pivoting latch released” and “pivoting latch not purely mechanically released”.

These two sensor signal states of the second sensor are preferably sensor signal states of a common sensor signal of the second sensor.

In the context of the invention presented here, states, in particular signal states, are identified with easily understandable descriptions, such as "door closed". This primarily serves to make the invention easier to understand. In fact, the corresponding signal naturally has a specific voltage as the signal state or is modeled accordingly in terms of frequency or wavelength, for example. In addition, it applies to the entire invention presented here that a single signal preferably has exactly two signal states. In this case, one of the two signal states can also be generated by the fact that a voltage of zero is present.

In addition, within the scope of the entire invention, it is provided in particular that a single sensor generates exactly one signal. This signal in turn can in particular have exactly two signal states. For example, the first sensor and/or the second sensor can be designed as a switch or as a button. The first and/or second sensor can be arranged in an electric circuit. One sensor signal state is formed by a closed circuit caused by the switch or button, the other sensor signal state is formed by an open circuit caused by the switch or button. Thus, the signal states can be formed by "electrical voltage is present" and "electrical voltage is not present".

The invention shows a door opener with at least two sensors. The first sensor detects whether the door is closed or the door is not closed is. The second sensor detects whether the swivel latch is released or not released or at least not released purely mechanically. In the non-released state, the swivel latch is locked in particular by the locking device.

The use of these two sensors in the door opener makes it possible to detect in different ways whether the door is secure or not. In the context of the present invention, “door secure” is understood in a first alternative to mean that the door is closed and at the same time the swivel latch of the door opener is not released. Namely, by combining these two states, it can be ensured that the door cannot be opened by simply pressing against the door. In the context of the present invention, “door secure” is understood in a second alternative to mean that the door is closed and at the same time the pivot latch of the door opener is not released purely mechanically. The combination of these two states can be used to ensure that the door cannot be opened by simply pressing against the door without the swivel latch being electrically released beforehand.

On the other hand, "door not secure" means that the door system can be inspected at any time. This is the case both when the door is open and when the door is closed but at the same time the swivel latch is released. Of course, these state descriptions "door safe" and "door not safe" are only chosen here for understanding the invention. In fact, these are again corresponding statuses or signal statuses that can be designated and output in different ways. For example, the status "door secure" or "door not secure" can be displayed by display means on a control unit, in particular an intercom system or a building management system.

It should also be noted that, depending on the application, the "door safe" status is either the desired or the undesired status. For example, with a "day function" the "door not safe" status can always be desired in order to enable constant access to the door. Just as In order to enable an escape function, it may be desirable for the door to assume the "door not secure" state. On the other hand, the "door not secure" condition may not be desired, e.g. B. at night.

The two sensor signal states of the first sensor can also be distributed over two different signals. However, one signal is advantageously used to transmit the two sensor signal states of the first sensor. It may be that the first sensor is designed as a switch or button. It is possible that the first sensor automatically returns to the sensor signal state "Door not closed" if it is not actuated.

The two sensor signal states of the second sensor can also be distributed over two different signals. However, one signal is advantageously used to transmit the two sensor signal states of the second sensor. It may be that the second sensor is designed as a switch or button. It is possible that the second sensor automatically returns to the sensor signal status "pivot latch not released" or "pivot latch not purely mechanically released" without being actuated.

In a preferred embodiment, it is provided that the two sensors are connected to one another in a signal-transmitting manner and the door opener is designed to generate a combined output signal based on the sensor signal states of the two sensors. As a result, the wiring of the door opener in particular is kept as simple as possible. The door opener only has to transmit the combined output signal to the control unit. It should be noted here that the door opener can, of course, generate other sensors that are not described here and, accordingly, other output signals that are not described here.

For the combined output signal, it is provided in particular that the door opener is designed in such a way that the combined output signal assumes the output signal state "door safe" when the sensor signal states (first sensor) "door closed" and (second sensor) "pivot latch not released" or " Swivel latch not released purely mechanically". This is a logical AND link, so that for the Output signal status "Door safe" both sensor signal statuses must be present at the same time.

Additionally or alternatively, it is provided that the output signal status “door not safe” is generated when the sensor signal status (first sensor) “door not closed” or the sensor signal status (second sensor) “pivot latch released” is present. This is a logical OR operation, so that at least one of the two sensor signal states must be present for the output signal state "Door not safe".

In principle, it is provided that the door opener generates the output signal in any way based on the sensor signal states of the two sensors, be it as an analog or digital signal. Corresponding electrics or electronics can also be arranged in the door opener, which evaluates the signals from the two sensors and thus generates the output signal with the output signal states described above.

In an advantageous and simple embodiment, the two sensors are connected in series or in parallel and the states "closed circuit" or "open circuit" directly represent the output signal:
According to a first variant, the two sensors are connected in series to generate the output signal. In particular, the sensors are designed as switches or buttons. The closed circuit leads to the output signal status "door safe". Accordingly, the sensors are designed in such a way that the first sensor interrupts the series connection when the sensor signal state is “door not closed” and the second sensor when the sensor signal state is “pivoting latch released”.

In the case of the parallel circuit according to a second variant, it is provided that the closed circuit or the closed parallel circuit corresponds to the output signal status “door not safe”. For this purpose, it is provided that the first sensor closes the parallel circuit when the sensor signal state is "door not closed" and the second sensor closes the parallel circuit when the sensor signal state is "pivot latch released".

In a further alternative, the door opener includes a control device, for example a microcontroller or a microprocessor. The control device has knowledge of the signal state of the first sensor and of the signal state of the second sensor. The controller generates the combined output signal.

Provision can be made for the second sensor to be designed and arranged to detect the two locking device states. The second sensor thus detects states of the locking device. In particular, actuation of the actuator leads to a change in the locking device state.

When the second sensor is arranged to detect the two ratchet conditions, the first ratchet condition generates the pivot latch released sensor signal condition and the second ratchet condition generates the pivot latch not released sensor signal condition.

The locking device preferably includes an anchor. The armature is movably mounted in the housing. In particular, the armature can be rotated about an armature axis. The anchor axis is in particular perpendicular to the pivot axis. In a first position, the anchor releases the pivot latch. In a second position, the anchor blocks the swivel latch directly or preferably indirectly. The second sensor is arranged in particular for detecting these two positions of the armature. In particular, the armature directly actuates the second sensor.

Provision is preferably made for the armature to be moved by means of the actuator, ie in particular the electromagnet. In particular, the armature is spring-loaded in the direction of its second position with at least one armature spring. The actuator moves the armature against the spring force into its first position to release the swivel latch. For this purpose, a plunger is particularly preferably provided, which is moved by the actuator. The plunger pushes the armature into its first position against the spring force.

Furthermore, it is preferably provided that the anchor does not block the swivel latch directly, but rather indirectly via a blocking lever. This locking lever is also in the Housing movably arranged. In particular, the locking lever can be rotated about a locking lever axis. The locking lever axis is in particular perpendicular to the pivot axis or parallel to the anchor axis. The armature is designed in particular in such a way that it holds the pivoting lever in a form-fitting manner in a position that blocks the pivoting latch. By moving the armature into its first position, this positive locking between the armature and the locking lever is released. The locking lever does not rotate yet. The released locking lever is only moved when the swivel latch is pivoted. The pivoting of the pivoting latch, in turn, is effected by the load on the door and thus by the transmission of force from the lock latch to the pivoting latch.

The arrangement of the second sensor for detecting the locking device states allows the second sensor to generate the signal states "pivot latch released" and "pivot latch not released". In this case, the second sensor is arranged in particular on the armature.

Provision is preferably made for the door opener to have a permanent unlocking switch which, in a first switch state, permanently puts the locking device into the released first locking device state independently of the actuator and in a second switch state releases the locking device for actuation by the actuator. The expression "permanently placed in the released first locking device state" is understood to mean that the permanent release switch remains in the first switch state until the permanent release switch is in particular manually moved into the second switch state and/or that the locking device is in the first The latch state remains until the permanent unlock switch is specifically manually moved to the second switch state.

The permanent unlocking switch is intended in particular for manual actuation by a user and is accessible for this purpose when the door opener is installed. For example, the permanent unlock switch is a lever that is accessible when the door is open. By operating the lever, the permanent unlocking switch can be set to its two different switch states. When the permanent unlock switch is in its first switch state, the lockout device will remain in the first lockout device state (pivot latch is released) until the permanent unlock switch is placed in its second switch state. Only in this second switch state does an actuation of the actuator, in particular the electromagnet, result in the swivel latch being released again.

Such a permanent unlocking switch is used, for example, to set the door opener to a "day function" so that the door can be used permanently.

In particular, the permanent unlocking switch is designed in such a way that, in its first switch state, it permanently releases the armature of the locking device from the locking lever of the locking device. In this case, the armature is in particular raised by the permanent unlocking switch. The exact structure of the locking device with anchor and locking lever will be explained in detail.

The second sensor can be designed to detect the two switch states of the permanent unlocking switch and can be arranged accordingly. In particular, the second sensor is located on the permanent unlocking switch. Correspondingly, the first switch state generates the sensor signal state “pivoting latch released”. The second switch state generates the sensor signal state "Pivoting latch not purely mechanically released". The status "pivot latch not released purely mechanically" differs from the status "pivot latch not released" in that the pivot latch can still be released electrically by the actuator in the second switch state.

The second sensor on the permanent unlocking switch can detect whether there is a possible blocking or release of the pivot latch due to a switch state of the permanent unlocking switch.

Depending on the arrangement of the second sensor on the locking device, in particular on the anchor, or on the permanent unlocking switch, different states can therefore be detected.

If the sensor is arranged on the blocking device, it can be detected whether the swivel latch is currently actually blocked or released. The "door safe" status therefore only arises if there is neither a mechanical nor an electrical release of the swivel latch and at the same time the sensor status "door closed" is present. The "door safe" state formed in this way can be particularly valuable, in particular, when the "door safe" state is output where it is unknown whether the door has been electrically released, e.g. B. in a remote surveillance room.

If the sensor is arranged on the permanent unlocking switch, it can be detected whether the swivel latch is released or whether the swivel latch is not released by the permanent unlocking switch but can be released electrically by means of the actuator. The "door safe" status only occurs if the swivel latch is not released by the permanent unlocking switch and the "door closed" sensor status is present at the same time. The "door safe" status formed in this way can be particularly valuable when the "door safe" status is output where it is known whether the door has been electrically released, e.g. B. where the electrical release takes place, z. B. on an intercom.

In addition, the door opener can have a locking device. The locking device means that the actuator only has to be actuated once or briefly to release the swivel latch. The swivel case can then be swiveled once; a one-time inspection of the door is therefore possible. The locking device then falls back into its second locking device state for locking the swivel latch.

The locking device has in particular a pin which protrudes through the swivel latch and is always acted upon by the lock latch and pressed inwards when the door is closed. The pin always presses against the locking lever via a corresponding spring, in particular a leaf spring. As soon as the positive connection between the anchor and the locking lever is released, the locking lever is turned into its releasing position via the pin and the spring without pivoting the swivel latch. Since the lock latch continuously on the pin and thus also presses on the locking lever via the spring (leaf spring), the locking device remains in its released state. As soon as the door is opened once, the pressure from the lock latch on the pin is released, causing the locking lever to return to its position locking the swivel latch.

The arrangement of the second sensor for detecting the locking device states, in particular for detecting the two positions of the armature, has the advantage that all states are detected that can lead to a released swivel latch: (i) When the actuator is actuated or as long as the actuator is actuated, the armature is in its first position and the swivel latch is thereby released. (ii) When the permanent unlock switch, if present, is in its first switch state, the armature is also in its first position and the pivot latch is released. (iii) When the detent, if any, is activated, i.e. the depressed pin holding the locking lever in the released position, the armature is blocked from returning to the second position by the twisted locking lever and thus remains in the first position. The swivel latch is also released in this state.

Furthermore, it is preferably provided that the first sensor is designed to detect the lock latch, with the presence of the lock latch in the door opener generating the sensor signal status "door closed" and the absence of the lock latch in the door opener generating the sensor signal status "door not closed".

In particular, the door opener has a lock latch receiving space, for example between its housing and the swivel latch. When the door is closed, the lock latch extends into this lock latch receiving space of the door opener. Part of the first sensor, which is pushed in by the lock latch, is located in the lock latch receiving space of the door opener. This allows the presence of the lock latch in the door opener to be detected.

The invention also includes an arrangement with the door opener described here. In addition to the door opener, the arrangement includes a receiving unit. The receiving unit is connected to the door opener for data transmission. In particular, the data transmission is wired. The receiving unit is particularly preferably part of a control unit. This control unit is, for example, an intercom system or some other processing unit that is used to monitor and/or control a building.

The receiving unit preferably generates a result signal. The result signal can be identical to the output signal of the door opener or can be a signal derived from it. The result signal or the states of the result signal can be used in different ways. For example, the control unit can output the result signal states via a display device, for example a lamp or a display. It is also possible for the result signal to be forwarded to a higher-level unit.

Provision is preferably made for the receiving unit to be designed to receive the combined output signal of the door opener described above. The result signal state "door safe" is present when the output signal state "door safe" is present. In addition or as an alternative, the result signal state “door not safe” is present when “door not safe” is present as the output signal state. It is also provided that the receiving unit uses the combined output signal directly. In particular, the combined output signal and result signal can be identical; only different designations are then used for the signals in the door opener and in the receiver unit.

If no combined output signal from the door opener is used, it is provided in particular that the receiving unit is designed to receive two individual output signals from the door opener, which represent the sensor signal states of the two sensors. The result signal status "door safe" is generated in the receiving unit if the sensor signal statuses "door closed" and "pivot latch not released" transmitted by means of the two output signals or the sensor signal statuses "door closed" and "pivot latch not released purely mechanically" transmitted by means of the two output signals present. Additionally or alternatively, the result signal status "door not safe" is generated if the sensor signal statuses "door not closed" or "pivot latch released" transmitted by means of the output signals are present.

The invention also includes a method for determining a door status, the statuses "door closed" and "door not closed" being detected by means of a first sensor, the statuses "pivot latch released" and "pivot latch not released" or the two states "pivot latch released" and "pivot latch not purely mechanically released" are detected with regard to a door opener.

In a first alternative, a result signal status “door safe” is generated when the statuses “door closed” and “pivoting latch not released” are present. In a second alternative, the result signal status "door safe" is generated, or if the statuses "door closed" and "pivoting latch not purely mechanically released" are present. Which alternative is available depends on the arrangement of the second sensor and the associated possibility of the second sensor to generate either the signal status "pivoting latch not released" or the signal status "pivoting latch not purely mechanically released".

A "door not safe" result signal condition is generated if the "door not closed" condition or the "pivot latch released" condition is present.

The advantageous configurations and dependent claims described in the context of the door opener or the arrangement are correspondingly advantageously applied to the method.

In particular, it is provided that the door opener described here or the arrangement described here is used to carry out the method. Accordingly, the two sensors used in the process are then located in the door opener.

Fig. 1

eine Draufsicht auf einen erfindungsgemäßen Türöffner gemäß einem Ausführungsbeispiel zur Durchführung des erfindungsgemäßen Verfahrens,

Fig. 2

eine perspektivische Ansicht des erfindungsgemäßen Türöffners aus Fig. 1,

Fig. 3

Details des erfindungsgemäßen Türöffners aus Fig. 1,

Fig. 4

Details des Türöffners aus Fig. 1 zur Erläuterung einer Arretierungsvorrichtung, und

Fig. 5

eine erfindungsgemäße Anordnung mit erfindungsgemäßem Türöffner gemäß dem Ausführungsbeispiel zur Durchführung des erfindungsgemäßen Verfahrens.

The invention will now be described in more detail using an exemplary embodiment. show it

1

a plan view of a door opener according to the invention according to an embodiment for carrying out the method according to the invention,

2

a perspective view of the door opener according to the invention 1 ,

3

Details of the door opener according to the invention 1 ,

4

Details of the door opener 1 to explain a locking device, and

figure 5

an arrangement according to the invention with a door opener according to the embodiment of the invention for carrying out the method according to the invention.

A door opener 1 is explained in more detail below using an exemplary embodiment. The door opener 1 is in the Figures 1 to 4 shown. figure 5 shows an arrangement 100, which includes a receiving unit 101 in a control unit 102 in addition to the door opener 1.

The following will refer to the Figures 1 to 4 to explain the door opener 1 referred. The door opener 1 includes a housing 2, which is used to attach the door opener 1 in a door frame. In the housing 2 there is a pivot latch 3. The figures 1 , 2 and 4 show the swivel latch 3. In figure 3 the swivel latch 3 is hidden for the sake of clarity.

The pivot latch 3 comprises a roller 8 which can be rotated or pivoted about a pivot axis 4 relative to the housing. The roller 8 has a receiving surface 6 (see figure 2 ) on. On this receiving surface 6, a non-illustrated blocking body of the pivot latch 3 is mounted, usually screwed.

A lock latch receiving space 7 is formed between the swivel latch 3 and the rear wall of the housing 2 . When the door is closed, the lock latch of the door extends into this lock latch receiving space 7. The swivel latch 3, if it is not released, blocks the lock latch in this lock latch receiving space 7, so that if the swivel latch 3 is not released, the door can only be opened if the lock latch , for example via the door handle.

The door opener 1 also includes a locking device 10. The locking device 10 in turn has a locking lever 11. This locking lever 11 is in the figures 1 , 2 and 4 shown and in figure 3 hidden for the sake of clarity.

The swivel latch 3 has a blocking section 5 on its side facing the swivel lever 11 . When the blocking lever 11 is in the position shown in the figures, the movement of the pivot latch 3 about the pivot axis 4 is blocked by a positive fit between the blocking lever 11 and the blocking section 5 .

The locking lever 11 can be rotated relative to the housing 2 about a locking lever axis 12 . A locking lever spring 13 acts on the locking lever 11 in the position shown in the figures.

Furthermore, the locking device 10 comprises an armature 14. The armature 14 can be rotated about an armature axis 15 relative to the housing 2. Anchor axis 15 and locking lever axis 12 are parallel to each other and perpendicular to the pivot axis 4.

The armature 14 is urged into the position shown in the figures via at least one armature spring 16 .

Furthermore, the door opener 1 includes an actuator 18, designed here as an electromagnet. The electromagnet moves a plunger 17 with its core. This plunger 17 can be lifted by the electromagnet, as a result of which the plunger 17 presses on the actuator 18 and lifts it against the force of the armature springs 16 .

In the position shown in the figures, the armature 14 holds the locking lever 11 in a form-fitting manner in its position blocking the pivot latch 3 . By lifting the armature 14, the positive connection between the armature 14 and the locking lever 11 is released.

Especially figures 1 , 2 and 3 , show a permanent unlocking switch 20 of the door opener 1. The permanent unlocking switch 20 can be rotated about a permanent unlocking switch axis 21. The permanent release switch axis 21 is in particular perpendicular to the pivot axis 4.

The permanent unlocking switch 20 has a first leg 22 and a second leg 23 . The first leg 22 can be seen and operated by a user when the door is open. By actuating the first leg 22, the permanent unlocking switch 20 can be switched to its two switch states. A two-hole latch 24 on the permanent release switch 20 and a spring-loaded ball allows the permanent release switch 20 to be latched in its two states.

As figure 3 clarified, the second leg 23 of the permanent unlocking switch 20 can lift the core of the actuator 18 or directly the plunger 17 projecting into the actuator 18, as a result of which the armature 14 is lifted and disengaged from the locking lever 11. In this case, the permanent unlocking switch is in the first switch state. If, on the other hand, the first leg 22 is folded over (not shown), then the second leg 23 is not operatively connected to the actuator 18 or the plunger 17. In this case, the permanent unlocking switch is in the second switch state.

The door opener 1 includes a first sensor 30. The first sensor 30 is used to generate the sensor signal states “door closed” and “door not closed”. For this purpose, the first sensor 30 includes a rotatably arranged sensor shaft 32 which extends parallel to the pivot axis 4 . A sensor plate 31 is connected to the sensor shaft 32 at the upper end of the sensor shaft 32 .

By turning the sensor shaft 32, the sensor plate 31 pivots and presses on the signal-generating component of the first sensor 30.

A latch plate 33 is formed on the sensor shaft 32 in the area of the lock latch receiving space 7 . The lock latch presses on this latch plate 33, as a result of which the sensor shaft 32 is rotated. Thus, the sensor signal state "door closed" is generated when the lock latch presses on the latch plate 33. For example, the lock latch actuates the first sensor 30 designed as a button or as a switch. The sensor signal state “door not closed” is thus generated if the lock latch does not press on the latch plate 33 . For example, the lock latch releases the first sensor 30, which is designed as a button or as a switch.

The door opener 1 also includes a second sensor 40. The figures show different positions for the positioning of the second sensor 40. In fact, however, only a second sensor 40 is used. As the figures make clear, the second sensor 40 can be located, for example, on the permanent unlocking switch 20 or on the armature 14 . In both positions it is provided that the second sensor 40 detects whether the swivel latch 3 is released or not or not purely mechanically. The second sensor can be designed as a switch or button and output "voltage is present" or "voltage is not present" as signal states.

If the second sensor 40 is located on the armature 14, the sensor signal state “pivot latch released” is generated when the armature 14 releases the locking lever 11. For example, the armature 14 releases the second sensor 40 embodied as a switch or button. The sensor signal state "pivoting latch not released" is generated when the armature 14 holds the locking lever 11. For example, the armature 14 actuates the second sensor 40 embodied as a switch or button.

If the second sensor 40 is located on the permanent unlocking switch 20, the sensor signal state “pivoting latch released” is generated in the first switch state. In this case, for example, the permanent unlocking switch 20 releases the second sensor 40 embodied as a switch or button. In which second switch state, the sensor signal state "pivoting latch not only released mechanically" is generated. For example, the permanent unlocking switch actuates the second sensor 40 embodied as a switch or button.
In the second switch state, however, the pivot latch can be released because either the actuator 18 is energized or a locking device 25 is activated. Therefore, positioning the second sensor 40 to detect the positions of the armature 14 may be preferable.

A locking device 25, which can also influence the state of the locking device 10, is in figure 4 shown.

figure 4 shows that the locking device 25 includes a pin 26 which protrudes from the pivot latch 3 into the lock latch receiving space 7 . When the door is closed, this pin 26 is pushed inwards by the latch bolt. A spiral spring 27 of the locking device 25 is compressed and a leaf spring 28 of the locking device 25 is pressed against the locking lever 11 . If the actuator 18 is activated in this state, in particular energized, the armature 14 lifts and releases the locking lever 11 . The leaf spring 28 pushes the locking lever 11 into its non-locking position. The swivel latch 3 is pivoted by the load on the lock latch and the door can be opened once.

If the second sensor 40 is located on the armature 14, the signal state "pivoting latch released" is generated when the actuator 18 has actuated the plunger 17, when the permanent unlocking switch 20 has actuated the plunger or when the locking device 25 and the locking lever 11 Anchor 14 has been raised.

figure 5 1 shows the arrangement 100 in a very simplified and purely schematic representation. Accordingly, the door opener 1 has the two sensors 30 and 40. FIG. Wiring to the receiving unit 101 takes place via connection terminals on the door opener 1 . The receiving unit 101 can be part of a control unit 102 . The control unit 102 is, for example, a Intercom system, which is also used to activate the actuator 18 to open the door.

The first sensor 30 and the second sensor 40 are connected in such a way that the combined output signal results in the output signal state “door safe” or “door not safe”.

For example, the first sensor 30 and the second sensor 40 are connected in series. The output signal state "door safe" results when the switch or button designed as the first sensor 30 is closed and thus signals "door closed". At the same time, the switch or button designed as a second sensor 40 is also closed and thus signals "pivot latch not released" when arranged on the armature 14 or "pivot latch not released purely mechanically" when arranged on the permanent unlocking switch 20. The output signal status "door not released safe" when the switch or button designed as the first sensor 30 is open and thus signals "door not closed". Additionally or alternatively, the switch or button designed as a second sensor 40 is open and thus signals “pivoting latch released”.

In an alternative that is not shown, the first sensor 30 and the second sensor 40 are connected in parallel. The output signal status "door safe" results when the switch or button designed as the first sensor 30 is open and thus signals "door closed". In this case, contrary to the above exemplary embodiment, the first sensor 30 must also be opened when the lock latch presses on the latch plate 33 . At the same time, the switch or button designed as a second sensor 40 is also open and thus signals "pivot latch not released" when arranged on the armature 14 or "pivot latch not released purely mechanically" when arranged on the permanent unlocking switch 20 second sensor 40 are opened when the armature 14 holds the locking lever 11 or permanent unlocking switch 20 open the second sensor 40 designed as a switch or button in the second switch state.

The output signal status "door not safe" results when the switch or button designed as the first sensor 30 is closed and thus signals "door not closed". Additionally or alternatively, the switch or button designed as a second sensor 40 is closed and thus signals “pivoting latch released”.

The combined output signal is preferably already generated in the door opener.

Reference List

1

door opener

2

Housing

3

swivel latch

4

pivot axis

5

lockdown section

6

recording surface

7

lock latch pick-up

8th

roller

10

locking device

11

locking lever

12

locking lever axle

13

locking lever spring

14

anchor

15

anchor axis

16

anchor spring

17

pestle

18

actuator

20

Permanent unlock switch

21

Permanent release switch axis

22

first leg

23

second leg

24

detent

25

locking device

26

Pen

27

spiral spring

28

leaf spring

30

first sensor

31

sensor sheet

32

sensor shaft

33

trap plate

40

second sensor

100

arrangement

101

receiving unit

102

control unit

Claims (15)

Door opener (1) for locking and releasing a door, comprising • a housing (2), • a swivel latch (3) movably arranged in the housing (2), • a locking device (10) arranged in the housing (2), which is designed to release the swivel latch (3) in a first locking device state and to lock the swivel latch (3) in a second locking device state, • an electrically controllable actuator (18) arranged in the housing (2) for actuating the locking device, • a first sensor (30) arranged in the housing (2) for detecting the closed door for generating the sensor signal states “door closed” and “door not closed”, and • a second sensor (40) arranged in the housing (2) for detecting a state of the pivot latch (3) for generating the sensor signal status "pivot latch released" and "pivot latch not released" or for generating the sensor signal status "pivot latch released" and "pivot latch not in mechanically released". Door opener according to Claim 1, in which the two sensors (30, 40) are connected in a signal-transmitting manner and the door opener (1) is designed to generate a combined output signal based on the sensor signal states of the two sensors (30, 40). A door opener according to claim 2, wherein the combined output signal • assumes the output signal status "door safe" when the sensor signal statuses "door closed" and "pivot latch not released" or when the sensor signal statuses "door closed" and "pivot latch not purely mechanically released" are present, • and/or assumes the output signal status "door not safe" if the sensor signal status "door not closed" or the sensor signal status "swing latch released" is present. Door opener according to claim 3, wherein the two sensors (30, 40) are connected in series to generate the output signal and the first sensor (30) in the sensor signal state "door not closed" and the second sensor (40) in the sensor signal state "pivot latch released". Series circuit breaks, the break in the series circuit generating the output signal condition "door not safe". Door opener according to claim 3, wherein the two sensors (30, 40) are connected in parallel to generate the output signal and the first sensor (30) in the sensor signal state "door not closed" and the second sensor (40) in the sensor signal state "pivot latch released" the parallel connection closes, the closed parallel circuit generating the output signal status "door not safe". Door opener according to one of the preceding claims, comprising a permanent unlocking switch (20) arranged in the housing (2) which, in a first switch state, permanently sets the locking device (10) independently of the actuator (18) into the released first locking device state and in a second switch state releases the locking device for actuation by the actuator. Door opener according to Claim 6, in which the second sensor (40) is designed to detect the two switch states of the permanent unlocking switch (20), the first switch state generating the sensor signal state "pivoting latch released" and the second switch state generating the sensor signal state "pivoting latch not released purely mechanically". Door opener according to one of claims 1 to 6, wherein the second sensor (40) is designed to detect the two locking device states, the first locking device state the sensor signal state "pivot latch released" generated and the second locking device state generates the sensor signal state "pivot latch not released". Door opener according to one of the preceding claims, wherein the locking device (10) comprises an armature (14) which can be moved by the actuator (18), the armature (14) being in a first position for releasing and in a second position for directly or indirectly locking the pivot latch (3) and wherein the second sensor (40) is arranged to detect both positions of the armature (14). Door opener according to one of the preceding claims, wherein the first sensor (30) is designed to detect a latch of the door, the presence of the latch in the door opener (1) generating the sensor signal state "door closed" and the absence of the latch in the door opener (1 ) generates the sensor signal state "Door not closed". Arrangement (100) comprising a door opener (1) according to one of the preceding claims and a receiving unit (101) which is connected to the door opener (1) in a data-transmitting manner. Arrangement (100) according to claim 11, wherein the receiving unit (101) is designed to receive the combined output signal of the door opener according to one of claims 3 to 10 and • to generate a result signal status "door safe" if the output signal status is "door safe", • and/or to generate a result signal state "Door not safe" if the output signal state "Door not safe" is present. Arrangement (100) according to claim 11, wherein the receiving unit (101) is designed to receive two individual output signals of the door opener (1) representing the sensor signal states of the two sensors (30, 40) and • to generate a result signal status "door safe" if the sensor signal statuses "door closed" and "pivot latch not released" transmitted by means of the output signals or the sensor signal statuses "door closed" and "pivot latch not released purely mechanically" transmitted by means of the output signals are present, and/or to generate a result signal status “door not safe” if the sensor signal statuses “door not closed” or “pivot latch released” transmitted by means of the output signals are present. Method for determining a door status, the statuses "door closed" and "door not closed" being detected by means of a first sensor (30), the statuses "pivot latch released" and "pivot latch not released" or the states "pivot latch released" and "pivot latch not purely mechanically released" of a door opener (1) are detected, and where: • a result signal status "door safe" is generated if the statuses "door closed" and "pivot latch not released" are present or if the statuses "door closed" and "pivot latch not purely mechanically released" are present, • and/or a result signal status “door not safe” is generated if the status “door not closed” or the status “swing latch released” of a door opener (1) is present. Method according to claim 12, wherein a door opener (1) according to one of claims 1 to 10 or an arrangement (100) according to one of claims 11 to 13 is used to carry out the method.

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