EP2594713A2 - Door opener - Google Patents

Abstract

The door opener (44) has internal locking element is controllable cooperating with electromagnet (29), such that internal locking element is held in locking position by electromagnet and is released in unlocking position by electromagnet. The internal locking element is formed as a single lever or as a composite of several levers. The single lever or levers of lever device assembled directly on the bolt (20) is pivoted about a first blocking element pivot axis and a second blocking element pivot axis, and is guided along a linear guide (28) fixed to the housing. The electric motor (10) is provided for actuation of the bolt from the unlocked position to the unlocking position. The electromagnet is provided for locking the bolt in the locking position, and a return spring (33) is provided for resetting the bolt from the locking position to unlocking position.

Description

The invention relates to a door opener for a door with a door leaf movably mounted in or on a door frame. The door opener comprises a door opener housing, a latch displaceably mounted along an actuating direction between a locking position and an unlocking position, an electrically switchable actuating device with an actuator and an actuator mechanism which can be controlled by the actuator for actuating the latch from the unlocking position to the locking position, an electrically switchable locking device for Locking of the bolt in the locking position and a return device for returning the bolt from the locking position to the unlocked position.

The actuating mechanism connects the actuator with the latch and comprises at least one transmission element, which is connected to the output of the actuator, and an internal locking member, which cooperates with the electrical switchable locking device and is controllable by the actuator.

In the following, some definitions of terms are given first: In the present application, the term "door opener" is to be understood as an electrically actuatable and electrically lockable door opener. It is an electrically operable and electrically lockable device for a door. The device has an electrically controllable actuating device and an electrically controllable locking device. The actuator causes actuation of the latch from the unlocking position to the locking position. Locking position means that the bolt protrudes at least in sections over the door opener housing and cooperates with a counter element of the door, so that the pivoting of the door leaf is blocked on the door frame. The counter-element may be a bolt receptacle, e.g. But strike plate also act on a movably mounted trap. Unlocked position means that the bolt is arranged in the door opener housing such that it cooperates with the counter element and thus the door leaf is pivotable on the door frame. In the unlocked position, the door is released, i. the door can be opened. In particular, the latch is located in the unlocked position completely within the door opener housing.

The term restoring device is to be understood in the present application as a passive, ie currentless device for returning the bolt from the locking position to the unlocked position. In particular, the provision of the bolt is also possible if the door opener is not supplied with power. Here, however, a distinction must be made between versions in which the actuator is self-locking or self-locking during the return movement.

Under door opener is not only the opener of a door but also the opener of a gate, window or other closure device understood with movably mounted wing. That In the present application, the term door also means a gate, a window and / or another closure device with a movably mounted wing. But door opener does not mean that an aggregate must be provided to drive the opening movement of the door. Such an aggregate can be provided as an additional device.

The term wing or door is understood in the present application, a rotary wing and / or a sliding sash consisting of one or more such wings. It may also be a non-walkable, comparable closure device in the construction or furniture sector such as a smoke damper.

• Ein Türöffner der eingangs genannten Art ist aus der EP 1 950 364 A1 bekannt. Ein Riegel ist zwischen einer Verriegelungsposition und einer Entriegelungsposition verlagerbar, wobei das Ausfahren des Riegels aus dem Türöffnergehäuse mittels eines Elektromotors und das Einfahren des Riegels in das Türöffnergehäuse mittels einer Rückstellfeder erfolgt. Für die Arretierung des Riegels in der Verriegelungsposition ist ein Elektromagnet vorgesehen, der mit einem Anker zusammenwirkt. Der Elektromotor, der Anker und der Riegel sind über eine Betätigungsmechanik miteinander verbunden. Die Betätigungsmechanik umfasst bei der bekannten Konstruktion ein Mehrfachscharnier mit mehreren jeweils schwenkbar miteinander verbundenen Schwenkhebeln. Diese Betätigungsmechanik ist aufwändig und kompliziert. Insbesondere besteht die Gefahr eines Blockierens der Betätigungsmechanik beispielsweise aufgrund unsymmetrischer Krafteinleitung von dem Elektromotor und der Rückstellfeder auf die Betätigungsmechanik.

As far as the state of the art is concerned:

• A door opener of the type mentioned is from the EP 1 950 364 A1 known. A latch is displaceable between a locking position and an unlocking position, wherein the extension of the bolt from the door opener housing by means of an electric motor and the retraction of the bolt in the door opener housing by means of a return spring. For locking the bolt in the locking position, an electromagnet is provided, which cooperates with an armature. The electric motor, the armature and the bolt are connected to each other via an actuating mechanism. The actuating mechanism includes in the known construction Multiple hinge with several swivel levers pivotally connected to each other. This actuating mechanism is complex and complicated. In particular, there is the risk of blocking the actuating mechanism, for example, due to asymmetrical introduction of force from the electric motor and the return spring on the actuating mechanism.

From the EP 1 473 425 B1 a door opener is known with a latch which is pivotable by means of an electric motor and an actuating mechanism between a locking position and an unlocking position. So that unlocking of the bolt is possible even in a powerless emergency situation, the electric motor and the actuating mechanism are arranged in a sliding cage in a housing of the door opener. In energized normal operation of the cage is held by means of an electromagnet in an operating position. In the currentless emergency operation eliminates the magnetic force of the electromagnet and the cage is displaced by means of a return spring in an emergency position, so that the latch is pivoted to the unlocked position. Such a door opener is complex and complicated.

The invention has for its object to provide a door opener with a lockable in a locking position latch, the door opener is simple and ensures high reliability.

The invention provides a door opener for a door with a movable in or on a door frame mounted door leaf. The door opener includes a Door opener housing, a latch displaceably mounted along an actuating direction between a locking position and an unlocking position, an electrically switchable actuating device with an actuator and an actuator mechanism controllable by the actuator for actuating the latch from the unlocking position to the locking position, an electrically switchable locking device for locking the bolt the locking position and a return device for returning the bolt from the locking position to the unlocked position.

The actuating mechanism connects the actuator with the bolt. It comprises a transmission device, which is connected to the output of the actuator or part of the output, and an internal locking member, which cooperates with the electrically switchable locking device.

It is essential in the door opener according to the invention that the internal actuator controllable locking member is attached directly to the latch, so that it is held in the locking position by the electrically switchable locking device and is released in the unlocked position of the electrically switchable locking device. It is envisaged that the internal locking member is formed as a single lever or lever means composed of a plurality of levers, wherein the single lever or at least one lever of the composite lever means is pivotally connected directly to the bolt about a first locking member pivot axis and is pivotable about a second locking member pivot axis , which is displaceable guided along a housing-fixed guide.

The housing-fixed guide of the second locking member pivot axis is formed in preferred embodiments as a linear guide. This can preferably be oriented perpendicular to the linear actuation direction of the bolt.

In preferred embodiments, the second locking member pivot axis may be guided with a roller along a housing-fixed rail. This results in a well-functioning movement.

The fact that the actuator-controllable locking member is coupled directly to the latch, on the one hand a direct, so immediate transmission of a movement of the bolt on the locking member and vice versa allows. On the other hand, a complex operating mechanism such as one from the EP 1 950 364 A1 known multiple hinge not required. The door opener according to the invention is simple. The number of required components, in particular the actuating mechanism is reduced. The door opener is functionally reliable. In particular, a blocking of the actuating mechanism is excluded.

A particularly preferred embodiment provides that a locking effective direction of the electrically switchable locking device and the actuating direction of the bolt are oriented parallel or substantially perpendicular to each other. As a result, the locking effect of the door opener is improved. In particular, a particularly compact and adjacent arrangement of bolt, locking device and actuator-controlled locking member in the door opener housing is possible.

A particularly preferred embodiment provides that a restoring effective direction of the restoring device in the locking position of the bolt and the actuating direction of the bolt are oriented parallel to each other. This ensures a safe and in particular blockade-free shifting back of the bolt from the locking position to the unlocked position. The fact that the restoring effective direction, that is to say the direction of action of the restoring force exerted by the restoring device on the bolt, is oriented parallel to the actuating direction reduces the risk of tilting of the bolt and thus blocking thereof. In particular, the application of the restoring force is effective. The restoring force required for the provision is low. In embodiments having an actuator which is self-locking against a return of the output to its initial position, can be advantageously provided that the actuator is switched so that it is driven immediately after the extension of the bolt back to its original position and that automatically preferably under the influence of the actor.

A particularly preferred embodiment provides an electric motor with a linear drive as an actuator. This makes it possible to transmit a low-noise and remotely controllable linear movement of the linear drive to the actuating mechanism. The electric motor is electrically controllable. In preferred developments it is provided that the electric motor is pivotally mounted in the door opener housing. This allows particularly compact design in conjunction with the linear output, which can be designed to be pivotable together with the electric motor. The electric motor can also be on a guide curve in the door opener housing be movably mounted. Due to the movable mounting of the electric motor, the actuating mechanism that connects the actuator with the bolt, structurally particularly simple design. In particular, the transmission device which is connected to the output of the actuator can be simplified. It may be formed as a part of the output, for example, may represent a drive-side push rod of the electric motor, the transmission device and be coupled directly to the locking member.

A particularly preferred embodiment provides an electromagnet as an electrically switchable locking device. This makes it possible to activate the locking device only, ie to switch electrically when a locking of the bolt is to take place, namely in its locking position. As a result, the power consumption for operating the door opener can be reduced and thus operating costs can be reduced. The electromagnet only generates a magnetic field when the bolt is locked. The magnetic radiation is reduced. In a preferred development of the electromagnet can interact directly with the internal blocking element, wherein the internal blocking element can be designed in the manner of a rotary armature.

In a particularly preferred embodiment, it is provided to pivot the internal locking member on the bolt about a first locking member pivot axis. As a result, a particularly compact arrangement of bolt and internal locking member in the door opener housing is possible. The fact that the internal locking member is articulated directly, ie without further connecting elements arranged therebetween on the latch, causes a displacement of the bolt an immediate displacement of the internal locking member. Since the internal locking member is pivotally mounted on the latch, a space-saving implementation of the linear movement of the bolt along the actuating direction for pivotal movement of the internal locking member is possible around the first locking member pivot axis.

In a particularly preferred embodiment it is provided that the internal locking member is pivotable about a second locking member pivot axis, which is displaceable guided along a housing-oriented, in particular perpendicular to the direction of actuation oriented linear guide. The linear guide may in particular be a rail. This ensures a defined and in particular guided displacement of the internal locking member in the door opener housing.

A particularly preferred embodiment provides to arrange in the locking position of the bolt, the first locking member pivot axis and the second locking member pivot axis such that they have an oriented perpendicular to the direction of actuation distance. In the case of a non-self-locking actuator causes the return means by the restoring force the return movement of the bolt, starting from the locking position. For the return movement of the bolt, the pivotally hinged internal locking member is pivoted about the first locking member axis. This pivotal movement would be blocked if the two locking member pivot axes were arranged on a parallel to the direction of actuation connecting line. Because of that, a vertical distance is provided, one of the restoring force with respect to the first locking member pivot axis caused torque is favored.

It can be provided that the electromagnet interacts directly with the internal locking member, wherein the internal locking member is formed in the manner of a rotary armature.

Alternatively, it can be provided that the electromagnet indirectly interacts with the internal locking member via a locking armature mounted in the door opener housing.

The mounted in the door opener housing locker can wear a cooperating with the electromagnet holding plate at its free end and be designed as a rotary armature.

In preferred embodiments, the internal locking member may be formed as a lever device which has a locking lever rotatably mounted on the locking lever and the locking armature mounted in the door opener housing, which cooperate with each other via a gear with roller and guide curve.

It can be provided that the locking armature mounted in the door opener housing has in its middle section a latching recess for the engagement of the internal locking lever in the locking position of the bolt.

In preferred embodiments, it is provided that the transmission device has a transmission element with its one end interacts with the actuator and the other end with the latch. In a particularly preferred embodiment, exactly one transmission element is provided, which interacts with the actuator and the bolt. Such door openers are particularly simple and straightforward. In particular, the transmission of the actuating force from the actuator to the latch is improved. Transmission losses are reduced.

In particular, in such embodiments, the transmission device may comprise an angle-shaped element which is embodied with a first angle leg, a second angle leg and an angle vertex arranged between the angle legs. In particular, the transmission element can be connected to the angle at the apex.

The first angle leg can be pivoted about a first pivot axis on the door opener housing. The second angle leg can be arranged on the bolt and in particular on an actuating surface provided for this purpose. Such a transmission element allows a particularly advantageous transmission of the linear movement generated by the actuator along an actuator action line to the actuating direction of the bolt, wherein the Aktorwirkungslinie is oriented transversely and in particular perpendicular to the direction of actuation. A guided displaceability of the actuator controllable locking member with a roller along a housing-fixed rail increases the reliability of the guide. The roller is in particular arranged concentrically to the second locking member pivot axis.

In a particularly preferred embodiment, the transmission means may comprise a first transmission element and a second transmission element, wherein in particular the first transmission element along a housing-fixed rail linearly guided carriage and the second transmission element may be the internal locking member.

The internal blocking member can fulfill two functions. On the one hand, the transmission of the actuating force is ensured by the actuator on the bolt and on the other hand, its arrangement on the locking device in the locking position, so that it is locked, that is locked. This function integration can reduce the number of parts of the door opener. The door opener is simple and uncomplicated. In particular, the Aktorwirkungslinie is oriented parallel to the guide direction of the car, so that the operation of the car is particularly smooth. The actuator controllable locking member may be pivotally hinged to the carriage about the second locking member pivot axis, so that a linear displacement of the carriage directly causes a linear movement of the second locking member pivot axis. Due to the linear movement of the carriage, a perpendicular to the direction of actuation oriented distance between the locking member pivot axes is reduced and the actuator controllable locking member pivoted. Accordingly, the bolt is displaced along the direction of actuation. In preferred developments, the transmission device can have exactly two transmission elements, for example the named first transmission element and the said second transmission element.

In particularly preferred embodiments, a spring element is provided, for example in the form of a torsion spring as a passive restoring device. Thereby, it is possible that the bolt can be moved back from the locking position to the unlocking position, even if the door opener is de-energized. This is particularly advantageous in the case of a possible power failure, such as in an emergency situation. The use of a torsion spring allows their particularly advantageous because space-saving arrangement in the door opener housing. In particular, the torsion spring can be arranged independently of the actuating device and of the locking device in the door opener housing. As a result, the design diversity is increased in the arrangement of the components in the door opener housing. In particular, a torsion spring with a spring crest can be fastened in a particularly robust and stable manner to the door opener housing. The fact that the torsion spring can interact directly with the bolt, a restoring force can be exerted directly and effectively on the bolt. For this purpose, a spring leg of the torsion spring may be arranged for example in a recess of the bolt. It is also possible that a separate holding means for the spring leg is provided on the bolt. In preferred embodiments, it can be provided that the torsion spring is fixedly connected to the door opener housing at a spring vertex and is arranged with a spring leg on the bolt such that the spring leg, in particular in the locking position of the bolt, exerts a restoring force on the bolt.

In a particularly preferred embodiment, a solvent arranged on the electrically switchable locking device is provided for releasing the internal locking member from the electrically switchable locking device in the locking position of the bolt. Such a solvent may in particular be a coil spring which is provided on a contact surface of the electrically switchable locking device, wherein the internal locking member rests in the locking position of the bolt on the contact surface. In particular, a recess is provided on the contact surface, in which the spiral spring is arranged such that it projects beyond the recess on the contact surface in the unloaded state. In the locking position, the coil spring is subjected to pressure, that is compressed in such a way that it has a releasing force on the internal blocking member, which counteracts the magnetic holding force of the locking device. The magnetic holding force is greater than the release force, so that when the locking device is activated a secure locking of the actuator-controlled locking member is ensured. When the locking device is deactivated, the spiral spring causes a problem-free release of the internal locking member of the locking device, even if the internal locking member has been magnetized during the previous lock at least partially and / or at least temporarily by the locking device. The solvent thus facilitates the return of the bolt from the locking position in the event of possible magnetization of the actuator-controllable locking member. The coil spring prevents adhesion of the internal locking member to the locking device after completion of the locking. It is particularly advantageous if the coil spring consists of a non-magnetic material such as non-magnetic stainless steel or plastic.

Preferred embodiments of the door opener can be designed as a swing door opener. The bolt is preferably designed in these embodiments as a so-called V-bar, ie it acts with a counterpart together. This counterpart may preferably be designed in the manner of a striking plate, particularly preferably as a forend - hereinafter referred to as a face-lock plate. The interaction takes place by the bolt in the closed position of the door for locking the door leaf in a recess of the counterpart - which may be formed as mentioned, preferably as Stulpschließblech - engages, wherein the free engaging end of the bolt is chamfered on both sides.

Furthermore, versions of the door opener for use on a glass door are possible. The door leaf can be stop wings or also pendulum wings. In the case of the glass door opener, the bolt on its cooperating with the door free end on a U-shaped cross-section. The U-legs are designed so that they embrace the front edge of the wing on both sides in the closed position of the door.

The designs of the door opener with the structure according to the invention are possible as working current variants and as quiescent current variants. The versions as pendulum door openers are preferably designed in the closed-circuit version. The versions as glass door openers will be required in practice in the working current version and in the quiescent current version.

Fig. 1

eine schematische Darstellung einer Tür mit einem Türrahmen, einem Türflügel, zwei Türscharnieren und einem erfindungsgemäßen Türöffner;

Fig. 1a

eine perspektivische Darstellung einer Ausführung des in Fig. 1 dargestellten Türöffners zum Einsatz an Pendeltüren mit einem V-Riegel;

Fig. 1

b eine Draufsichtdarstellung eines Stulpschließblechs für den V-Riegel des in Figur 1 dargestellten Türöffners;

Fig. 2

ein erstes Ausführungsbeispiel eines Türöffners mit einem Riegel in einer ersten Position, einer Entriegelungsposition, in der der Riegel vollständig innerhalb eines Türöffnergehäuses angeordnet ist;

Fig. 3, 4

das Ausführungsbeispiel gemäß Fig. 2, jedoch in einer zweiten bzw. dritten Position des Riegels, in welchen er zumindest abschnittsweise aus dem Türöffnergehäuses hervorragt;

Fig. 5

das Ausführungsbeispiel gemäß Fig. 2, jedoch in einer vierten Position des Riegels, einer Verriegelungsposition, in der ein aktorsteuerbares Sperrglied an einer Arretierungseinrichtung arretiert ist;

Fig. 6

ein zweites Ausführungsbeispiel eines Türöffners mit einem Riegel in der Entriegelungsposition gemäß Fig. 2;

Fig. 7

das Ausführungsbeispiel gemäß Fig. 6, jedoch in einer zweiten Position des Riegels, in der er zumindest abschnittsweise aus dem Türöffnergehäuse hervorragt;

Fig. 8

das Ausführungsbeispiel gemäß Fig. 6 in der Verriegelungsposition entsprechend Fig. 5;

Fig. 9

ein drittes Ausführungsbeispiel eines Türöffners mit einem Riegel in der Entriegelungsposition gemäß Fig. 2;

Fig. 10

das Ausführungsbeispiel gemäß Fig. 9 in der Verriegelungsposition.

In the following, two embodiments will be described with reference to figures. Showing:

Fig. 1

a schematic representation of a door with a door frame, a door, two door hinges and a door opener according to the invention;

Fig. 1a

a perspective view of an embodiment of the in Fig. 1 illustrated door opener for use on swing doors with a V-bar;

Fig. 1

b is a top view of a Stulpschließblechs for the V-bar of in FIG. 1 illustrated door opener;

Fig. 2

a first embodiment of a door opener with a latch in a first position, an unlocking position, in which the latch is disposed entirely within a door opener housing;

Fig. 3, 4

the embodiment according to Fig. 2 but in a second or third position of the bolt, in which it protrudes at least partially from the door opener housing;

Fig. 5

the embodiment according to Fig. 2 but in a fourth position of the bolt, a locking position in which an actuator-controllable locking member is locked to a locking device;

Fig. 6

a second embodiment of a door opener with a latch in the unlocking position according to Fig. 2 ;

Fig. 7

the embodiment according to Fig. 6 but in a second position of the bolt in which it protrudes at least in sections from the door opener housing;

Fig. 8

the embodiment according to Fig. 6 in the locking position accordingly Fig. 5 ;

Fig. 9

a third embodiment of a door opener with a latch in the unlocking position according to Fig. 2 ;

Fig. 10

the embodiment according to Fig. 9 in the locking position.

Fig. 1 1 schematically shows a door 1 with a door leaf 4 rotatably mounted on a door frame 2 by means of two door hinges 3. The door hinges 3 are arranged spaced apart from one another along a door pivot 5. The hinges 3 are at one, in Fig. 1 shown left, vertical side of the door 1 is provided. The door 4 is mounted as a swing door. The door hinges 3 are designed for the pendulum function of the door leaf as swing door hinges. At the upper horizontal bar of the door frame 2, an inventive door opener 6 is arranged. The door opener 6 may be arranged in a different mounting position on a vertical bar of the door frame, on the vertical bar at the main closing edge of the door, that is on the opposite side of the door axis vertical side.

In all embodiments shown in the figures, the door opener 6 on the output side, a latch 20 which is electrically actuated via an electric motor and electrically lockable via an electromagnet. These components: bolt, electric motor and electromagnet and various transmission devices that act between these components are stored in a door opener housing 8. The latch 20 is mounted so that it is extendable with its locking end of the housing 8 and in the housing 8 retractable. The structure and the interaction of the components will be explained in more detail for the various illustrated embodiments with reference to FIGS.

As regards the installation of the door opener and the interaction of the latch 20 with the door, the illustrated embodiments show that the door opener 6 arranged in the door frame 2 and that the latch cooperates with the door leaf 4, in the case shown with a in the Door leaf 4 provided receptacle, so that the extended in the locked position latch the door 4 locks on the door frame 2 and can be locked in this locking position of the latch 20 with the electromagnet. In the case of the swing door opener shown in the figures, the latch 20 at its free end on both sides bevels, ie for both directions of rotation of the pendulum wing each have a run-on slope. This bar is called due to the two-sided slopes as V-bar (see FIG. 1a ). On the pendulum wing, a strike plate is mounted on the cooperating with the bolt end face. It is a so-called Stulpschließblech 70, as in FIG. 1b is shown. The forend lock plate 70 has a central receptacle 7 for receiving the free end of the latch 20 in the closed position of the door when the latch 20 is extended, that is, in its extended locking position.

The following is based on the FIGS. 2 to 5 the structure of the door opener 6 according to a first embodiment explained in more detail. The door opener housing is recessed in the receptacle in the door frame 2 and fixed by means of a panel 9 to the door frame 2 by screwing. The panel 9 forms the conclusion of the door opener 6 to the door. The panel 9 is flush with the door frame 2. In principle, however, a reverse mounting is possible in which the door opener 6 wing side and the receptacle 7 is arranged on the frame side.

In the door opener housing 8, the electric motor 10 is arranged. The electric motor 10 is pivotally mounted in the door opener housing in the illustrated embodiment. The electric motor pivot axis is designated by the reference numeral 11 in the figures. The electric motor 10 has a linear drive 12, at the free end of a ball joint head 13 is provided. The electric motor 10 and the linear drive 12 allow a linear displacement of the ball joint head 13 along an actuator action line 14. The Aktorwirkungslinie 14 intersects the perpendicular thereto oriented electric motor pivot axis 11. A pivoting of the electric motor 10 about the electric motor pivot axis 11 causes a change in the position of the Aktorwirkungslinie 14 in the door opener housing 8th.

Connected to the electric motor 10 is an angular, substantially L-shaped transmission element 15 which has a first angle leg 16, a second angle leg 17 and an angle vertex 18 arranged between the angle legs 16, 17. The angle vertex 18 is provided at the intersection of the angle legs 16, 17. The two angle legs 16, 17 enclose an angle which is about 90 °. The ball joint head 13 is received in a corresponding joint receptacle, which is arranged at the angle vertex 18. At a free end of the first angle leg 16, the transmission element 15 is pivotally hinged about a first pivot axis 19 on the door opener housing 8. The first pivot axis 19 is fixed to the housing. The actuator action line 14 is oriented substantially perpendicular to the first angle leg 16. As a result, the pivotability of the transmission element 15 about the first pivot axis 19 is facilitated.

The transmission element 15 is arranged with a free end of the second angle leg 17 on the latch 20, in which this free end cooperates with the latch 20. The FIGS. 2 to 5 show the interaction of the free end with an actuating surface 21 of the bolt 20. The actuating surface 21 is provided on one of the door opener panel 9 facing away from the upper side of the bolt 20 and can be milled, for example, in the substantially cuboidal bar 20. The actuating surface 21 is executed according to the embodiment shown uneven and in particular convex. In particular, the actuating surface 21 is shaped such that the second angle leg 17 of the pivoted by the electric motor 10 transmission element 15 allows a continuous and in particular self-locking displacement of the bolt 20 along the operating direction 22. As actuating direction 22 is in accordance with the double arrow in Fig. 2 to understand both a direction of retraction of the bolt 20 in the door opener housing 8 from a locking position to an unlocking position and the corresponding antiparallel opposite direction. The actuator is in the case of in FIG. 1 shown assembly of the door opener vertically, since the door opener is arranged on the upper horizontal rail of the door frame above the door leaf.

The latch 20 is between the in Fig. 2 shown unlocking position in which the latch 20 is disposed completely within the door opener housing 8 and does not protrude beyond the door opener housing 8 or at least the door opener panel 9, and the in Fig. 5 illustrated locking position in which the latch 20 protrudes beyond the door opener housing 8 and the door opener panel 9, along the actuating direction 22 displaced. It is also possible that the Latch 20 in the unlocking position on the door opener housing 8 or the door opener panel 9 protrudes, but only to the extent that it does not interact with the receptacle 7 of the door leaf 4. In the locking position, the section of the bolt 20 projecting beyond the door opener housing 8 or via the door opener panel 9 engages in the receptacle 7 of the door leaf 4. The receptacle 7 is also referred to as a bolt receptacle and may for example have a known strike plate. In the illustrated case, no latch is required to allow locking and unlocking of the door 1 with the door opener 6 according to the invention. However, embodiments are also possible in which the latch 20 cooperates with a latch. The latch 20 can then be designed as a conventional door latch case, for example, as a pivot latch.

The following explains the electrical locking of the bolt 20 via the E-magnet FIGS. 2 to 5 show, a locking member 24 is pivoted on the latch 20 about a first locking member pivot axis 23. The actuator controllable locking member 24 is behind the plane and behind the latch 20 in Fig. 2 arranged and therefore drawn dotted. The locking member 24 is detectable by the E-magnet. The locking member 24 has on a second locking member pivot axis 25 concentric thereto, rotatably mounted roller 26. The roller 26 and thus the second locking member pivot axis 25 are guided displaceable along a housing-fixed, in the illustrated case in particular perpendicular to the actuating direction 22 oriented, linear guide 28. Furthermore, the locking member 24 has a magnetic retaining plate 27. The latch 20 has a recess such that a collision-free pivoting of the locking member 24 with the holding plate 27 attached thereto relative to the latch 20 is possible.

The locking member 24 is acted upon by a torsion spring 24f for rotation about its pivot axis 23 in a direction of rotation for lifting the holding plate 27 from the electromagnet 29. The torsion spring 24f is arranged with its spring vertex about the pivot axis 23. One spring leg is fixed to the locking member 24, the other spring leg is supported on the bolt 20 from.

The provided for cooperation with the holding plate 27 electromagnet 29 is designed as a coil which can be energized by means of an electrical circuit, so that the electromagnet 29 has a magnetic field such that a Arretierungswirkrichtung 38 parallel to the operating direction 22 of the bolt 20 oriented and to the electromagnet 29 is directed. The electromagnet 29 has a contact surface 30 facing away from the door panel 9 and a recess 31 provided on the contact surface 30, in which a spiral spring 32 is arranged. In an uncompressed state according to Fig. 2 protrudes the coil spring 32 at the contact surface 30 from the recess 31.

On a side opposite the solenoid 29 side of the bolt 20, a spring element in the form of a torsion spring 33 is provided as a restoring device for returning the bolt 20 from the locking position to the unlocked position. The torsion spring 33 is fixedly connected to the door opener housing 8 at a spring apex 34. Furthermore, the torsion spring 33 with a spring leg 35 in a corresponding recess 36 of the Bar arranged such that the spring leg 35, in particular in the locking position of the bolt 20, a restoring force acting along a restoring effective direction 37 restoring force on the latch 20 exerts.

In the first embodiment in the FIGS. 2 to 5 the electric motor 10 and the electromagnet 29 are arranged on one side of the bolt 20. The latch is disposed between the torsion spring 33 and the electromagnet 29.

The following is based on the Fig. 2 to 5 the operation of the door opener 6 according to the invention explained. Based on the state of the door opener in Fig. 2 , That is, the unlocking position of the bolt 20, in which the door leaf 4 is released on the door frame 2, the electric motor 10 is electrically connected as an actuator. As a result, the linear drive 12 with the ball joint head 13 along the Aktorwirkungslinie 14, in Fig. 2 to the top right, relocated. The connected at the angle peak 18 with the electric motor 10 transmission element 15 is pivoted about the housing-fixed first pivot axis 19 in a clockwise direction. As a result, the second angle leg 17 of the transmission element 15 is rotated to the bottom right. Due to the interaction of the second angle leg 17 with the actuating surface 21 of the bolt 20, the bolt 20 is pushed along the actuating direction 22, starting from the unlocking position of the door opener housing 8. By the displacement of the bolt 20 and the internal locking member 24 which is hinged to the first locking member pivot axis 23 on the bolt, is displaced. Due to the arrangement of the locking member 24 with the roller 26 in the housing fixed Linear guide 28, the displacement of the bolt 20 causes a superimposed by a pivoting movement about the first locking member pivot axis 23 linear movement along the operating direction 22 of the locking member 24th

The further the ball joint head 13 according to Fig. 3 and 4 is extended, the more the transmission element 15 is pivoted, the latch 20 is extended and the locking member 24 moves toward the electromagnet 29. At the same time, the torsion spring 33, in the unlocked position according to Fig. 2 is essentially relaxed, increasingly biased. The same applies to the torsion spring 24f. By means of the electrically switchable actuator, the latch 20 of the unlocking position according to Fig. 2 in the locking position according to Fig. 5 be relocated.

In the door opener 6, the latch 20 is actuated directly from the electric motor 10 via the actuating mechanism, ie the angular transmission element 15. By the displacement of the bolt 20, the locking member 24 is pivoted to allow the locking of the bolt 20 to the electromagnet 29 in the locking position.

In the locking position, the bolt 20 is extended to the maximum. The latch 20 engages in the latch receptacle 7 of the door leaf 4. The door 1 is blocked. At the same time, the bolt is locked electrically in the locking position. The operation of the door opener is based on the closed-circuit principle. The electromagnet 29 is energized in the locking position of the bolt 20 and has a magnetic field. It may be provided an unillustrated position sensor, the position of the bolt 20 and / or the linear output Detected 12 of the electric motor and causes in response thereto via a control unit, not shown, a switching signal for energizing the electromagnet. In the locking position of the bolt 20, the locking member 24 is arranged with the magnetic holding plate 27 on the contact surface 30 of the electromagnet 29. As long as the solenoid 29 is energized, the locking member 24 is held on the solenoid. Accordingly, the latch 20 is locked during this period. The locking member 24 is fixed directly to the latch 20 so that it is held in the locking position by the electromagnet 29 and released in the unlocked position by the electromagnet 29.

With the end of the energization of the electromagnet 29 whose magnetic field and thus the holding effect on the locking member 24, which is due to the coil spring 32 with the magnetic support plate 27 again dissolves from the contact surface 30 ends. At the same time, the restoring force of the torsion spring 33 acts, wherein the restoring effective direction 37 in the locking position of the bolt 20 in accordance with Fig. 5 oriented parallel to the actuating direction 22.

As for the return properties for the latch 20, it is necessary to distinguish between two versions. In one case, the electric motor 10 is not designed to be self-locking, eg as an electric linear drive. In the other case, the electric motor 10 is more or less self-locking, for example, as an electric rotary motor with spindle-nut output as linear output.

In the embodiment with the self-locking electric motor 10 is with the switching off of the energization of the electromagnet 29 of the latch 20 due to the restoring force of the torsion spring 33 from the locking position according to Fig. 5 completely back into the door opener housing 8 in the unlocked position according to Fig. 2 relocated. The return displacement is additionally facilitated by the fact that the two locking member pivot axes 23, 25 have a perpendicular to the direction of actuation 22 directed distance A. Accordingly, torques are exerted on the locking member 24 by the restoring force of the torsion spring 33 and of the torsion spring 24f and of the coil spring 32, which facilitate pivoting about the first locking member pivot axis 23. The return displacement is passive and in particular de-energized, so that, for example, even with an emergency power failure, a locked door 1 automatically unlocked and can be opened.

This is different in the embodiments in which the electric motor 10 is self-locking. In these embodiments, the electric motor is switched so that immediately after he has extended the latch 20, the electric motor is moved back, ie the linear drive of the electric motor 10 is retracted again by an electric motor. If then then the energization of the solenoid 29 is turned off to cancel the locking of the door, the output of the electric motor 10, since he has already moved back, the provision of the bolt 20 under the action of the return spring is not contrary. The provision of the bolt 20 then takes place as described above for the case of the embodiment with self-locking electric motor.

In addition, in these embodiments, the following special case is covered: The special case is the case that immediately after the extension of the bolt 20, a power failure occurs even before the electric motor 10 has moved back, or, for example. Even by pressing the emergency button of an escape door control device, the bolt 20 can not be retracted by a motor. Due to the self-locking of the electric motor 10, the bolt 20 can not be retracted now alone under the action of the return spring 33. In this case, the door can be opened only by manually pressing the door leaf, while the bolt 20 is pushed back over its direction of the pressing direction facing slope, i. the respective slope cooperates with the relevant edge of the assumption 7 of the striking plate 70.

The following is based on the Fig. 6 to 8 A second embodiment of a door opener 39 explained. Components and functions corresponding to those described above with reference to FIGS Fig. 1 to 5 have the same reference numbers and will not be discussed again in detail.

The essential difference of the door opener 39 according to the second embodiment over that of the first embodiment is the execution of the actuating mechanism. In the case of the door opener 39, this has a first transmission element in the form of a carriage 40 guided linearly along the housing-fixed rail 28 and a second transmission element in the form of the actuator-controllable blocking element 41. The door opener 39 thus has exactly two transmission elements 40, 41, wherein the second transmission element as aktorsteubares locking member with the electromagnet 29 such cooperates, that the latch 43 in the locking position according to Fig. 8 is locked.

The electric motor 10 has the linear drive 12, which allows a linear displacement of the carriage 40 along the Aktorwirkungslinie 14. The electric motor 10 is fixed in the housing 8, not rotatable or mounted movable in any other way. Between the linear actuator 12 and the carriage 40, a compression spring 42 is provided which damps shock loads between the electric motor 10 and the carriage 40. The carriage 40 has a receptacle, not shown, for the compression spring 42. Furthermore, the carriage 40 comprises two rollers 26, which are in particular identical to the roller 26 of the actuator-controllable locking member 24 according to the first embodiment. In this case, the housing-fixed rail 28 may be identical to the housing-fixed linear guide.

The locking member 41 is pivotally connected to the latch 43 about the first locking member pivot axis 23 and hinged to the carriage 40 about the second locking member pivot axis 25.

In the door opener 39 according to the second embodiment, the torsion spring 33 is disposed between the latch 43 and the electric motor 10. Furthermore, the latch 43 is arranged between the electric motor 10 and the electromagnet 29.

The following is based on the Fig. 6 to 8 the operation of the door opener 39 explained in more detail. In the unlocking position of the bolt 43 according to Fig. 6 the electric motor 10 is actuated, which causes a linear displacement of the linear actuator 12 along the Aktorwirkungslinie in the direction of the carriage 40. About the compression spring 42 of the carriage 40 is linearly displaced along the rail 28. At the same time, the second locking member pivot axis 25 of the locking member 41 according to Fig. 2 shifted to the right. Since the first locking member pivot axis 23 is attached to the latch 43 and is displaceable exclusively along the actuating direction 22, the latch 43 is pushed out of the door opener housing 8 by the linear displacement of the carriage 40 and by means of the actuator-controllable locking member 41 as a second transmission element.

With further actuation of the electric motor 10 and increasing displacement of the carriage 40, the locking member 41 is increasingly pivoted about its locking member pivot axes 23, 25 in the clockwise direction and displaced simultaneously with the second locking member pivot axis 25 along the operating direction 22 with the latch 43.

In the door opener 39, the latch 43 is actuated by the electric motor 10 via the operating mechanism comprising the carriage 40 and the actuator controllable blocking member 41. The locking member 41 thus causes the same time the displacement of the bolt 43 and the locking of the bolt 43 to the electromagnet 29 in the locking position.

In the locking position according to Fig. 8 the actuator-controllable blocking member 41 is pivoted such that it is arranged with the magnetic holding plate 27 on the contact surface 30 of the energized in the locking position of the electromagnet 29 and held there. The latch 43 is locked by the electromagnet 29 and the locking member 41.

The provision of the locking position in the unlocked position is analogous to the first embodiment and in turn also dependent on whether the electric motor 10 is formed self-locking or self-locking. In the case of the version with self-locking electric motor 10, the provision of the bolt 20 under the action of the torsion spring 33 is passive and automatic, as soon as the solenoid 29 is no longer energized and its magnetic holding force disappears.

In the case of embodiments with self-locking electric motor 10, a circuit is provided which ensures that after the extension of the bolt 20, the electric motor drives back its linear output. If then the energization of the electromagnet 29 is turned off, the provision of the bolt 20 is effected under the action of the torsion spring 33. In a corresponding manner, as for the embodiment of FIGS. 1 to 5 described, the special case is covered, that immediately after the extension of the bolt 20, a power failure or an emergency shutdown occurs before the linear drive of the electric motor 10 is retracted. In a similar way, the V-bolt can be pushed back here by manually pressing the door leaf.

Also in the door opener according to this second embodiment of the FIGS. 6 to 8 the locking member pivot axes 23, 25 in the locking position of the bolt 43 on a distance A, which is oriented perpendicular to the actuating direction 22. Due to the distance A, the torque generated by the introduction of the restoring force favors and facilitates the pivoting of the locking member 41 about the locking member pivot axes 23, 25 in the counterclockwise direction and the return of the bolt 43 in the unlocking position.

The Fig. 9 and 10 show a third embodiment in which a door opener 44 as in Fig. 2 to 5 described door opener 1 is formed, with the difference that the internal locking member 24 is replaced by a lever device. The lever device is composed of a locking lever 45 and a locking lever 46 cooperating with the locking lever. The locking arm 46 is designed as a one-armed lever mounted on the door opener housing 8, which has at its free end portion the magnetic retaining plate 27, which cooperates with an electromagnet 29.

The locking lever 45 is analogous to the above-described internal locking member 24 by being hinged via a pivot bearing 45d to the bolt 20 of the door opener 44 and at its upper end portion has a roller 45l, which upon pivoting of the locking lever 45 on one of the inner wall of the door opener housing 8 arranged linear guide 28 rolls. The locking lever 45 further has in its central portion a roller-shaped locking member 45r, which is arranged so that it is in one of the door opener panel 9 facing side portion of the locking arm 46 arranged latching recess 46r occurs when the latch 20 is extended from the door opener housing 8 in the locking position.

The locking lever 45 is loaded by a torsion spring 47. The torsion spring 47 wraps around the pivot bearing 45d and is supported with the one leg on the bolt 20 and with the other leg on the locking member 45r.

The bolt 20 is loaded by a torsion spring 33 which engages around a bearing journal of the locking arm 46. The one leg of the torsion spring 33 engages a pin-shaped projection formed in a recess of the bolt 20, the other leg of the torsion spring 33 is supported on an intermediate wall of the door opener housing 8.

The torsion spring 33 exerts a spring force on the latch 20, which pulls the latch 20 into the door opener housing 8. The torsion spring 47 exerts on the locking lever 45, a spring force which rotates the locking lever 45 in a clockwise direction, whereby the latch 20 is driven out of the door opener housing. The spring forces of the two torsion springs 33 and 47 are adjusted so that the latch 20 is securely held in the door opener housing 8 when it is in its release position.

The locking arm 46 is loaded by a torsion spring 48 whose spring force turns the locking armature 46 counterclockwise in the direction of the electromagnet 29. The torsion spring 48 is formed like the torsion spring 33 and also arranged on the bearing journal of the locking arm 46. The one leg of the torsion spring 48 engages the upper end face of the locking arm 46th on, the other leg of the torsion spring 48 is supported on the intermediate wall of the door opener housing 8. In the in Fig. 9 and 10 selected viewing direction, the torsion spring 48 is disposed behind the torsion spring 33 and therefore in Fig. 9 not visible. In Fig. 10 is supported on the locking arm 46 supported one leg of the torsion spring 48.

Because the recess 46r is disposed approximately in the middle of the locking arm 46, the force acting on the locking member 45 is approximately doubled according to the law of levers, so that the door opener 44 has an improved locking effect and against external forces in comparison to the in FIG Fig. 2 to 5 described door opener 1 is better protected.

The bolt 20 has in its upper portion a parallel to its upper edge extending guide curve on which an end portion of an L-shaped transmission element 15 slides. The other end portion of the transmission element 15 is mounted in a housing-fixed bearing with a rotation axis 19. In the apex portion of the transmission element 15, a ball joint 13 is arranged, which cooperates with an output of a pivotable about an electric motor pivot axis 11 electric motor 10. In the in Fig. 9 and 10 illustrated embodiment, the output 12 is designed as a rotating threaded rod with an external thread, which cooperates with a ball head joint 13 by cross threaded hole and thus forms a linear output. When the direction of rotation of the output is selected so that the ball joint 13 is moved away from the electric motor 10, the transmission element 15 pivots clockwise and slides with its free end portion on the above-mentioned guide curve of the bolt 20, whereby the bolt 20 from the Door opener housing 8 is driven out. In this case, the spring-loaded locking lever 45 also pivots in a clockwise direction, wherein the locking member 45r rolls along the underside of the spring-loaded locking armature 46 and falls into the recess 46r as soon as the bolt 20 is fully extended from the door opener housing 8. In this position, the holding plate 27 of the locking armature 46 rests on the electromagnet 29.

By energizing the electromagnet 29, the locking arm 46 is fixed in position ( Fig. 10 ). Immediately thereafter, the electric motor 10 is energized again, wherein the original direction of rotation is changed, so that the transmission element 15 pivots back to its original position and is decoupled from the latch 20.

Once the solenoid 29 is not energized, the torsion spring 33 is able to push back the bolt 20, wherein the roller-shaped locking member 45r out of engagement with the locking recess 46r and the locking lever 45 is pressed counterclockwise to its original position. The return of the bolt 20 can be supported by manual pressing of the door leaf. In this case, the latch 20 is pushed back by its pressing direction facing slope, ie the slope in question acts as described above with the relevant edge of the recording of the strike plate together.

LIST OF REFERENCE NUMBERS

1

door

2

doorframe

3

door hinge

4

door

5

Door pivot axis

6

Door opener (1st embodiment)

7

Recording (bolt recording)

8th

door opener housing

9

door opener panel

10

Electric motor (actuator)

11

Electric motor swivel axis

12

linear output

13

Ball-joint

14

Aktorwirkungslinie

15

transmission element

16

first angle leg

17

second angle leg

18

angle point

19

first pivot axis

20

Bar (1st embodiment)

21

actuating surface

22

operating direction

23

first locking member pivot axis

24

Actuator-controllable blocking member (1st embodiment)

25

second locking member pivot axis

26

caster

27

magnetic retaining plate

28

linear guide

29

Electromagnet (locking device)

30

contact area

31

deepening

32

spiral spring

33

Torsion spring (reset device)

34

spring peak

35

spring leg

36

recess

37

Restoring effective direction

38

Arretierungswirkrichtung

39

Door opener (2nd embodiment)

40

dare

41

Actuator-controllable blocking member (2nd embodiment)

42

compression spring

43

Bar (2nd embodiment)

44

Door opener (3rd embodiment)

45

Locking lever (3rd embodiment)

45d

pivot bearing

45l

caster

45r

locking member

46

stop anchors

46r

recess

47

torsion spring

48

torsion spring

70

Stulpschließblech

Claims (15)

Door opener for a door (1) with a door leaf (4) movably mounted in or on a door frame (2),
full a door opener housing (8), a latch (20; 43) mounted along an actuating direction (22) between a locking position and an unlocking position, preferably linearly displaceably mounted, an electrically switchable actuating device with an actuator (10) and an actuating mechanism which can be controlled by the actuator (10) for actuating the bolt (20; 43) from the unlocking position into the locking position, - An electrically switchable locking device (29) for locking the bolt (20; 43) in the locking position, a return device (33) for returning the bolt (20; 43) from the locking position to the unlocking position, wherein the actuating mechanism connects the actuator (10) with the latch (20; 43),
wherein it is provided that the actuating mechanism comprises a transmission device (15; 40, 41), which is connected to the output of the actuator (10) or part of the output, and a locking member (24; 41) - hereinafter referred to as internal locking member - Which is controllable by the actuator (10) and cooperates with the electrically switchable locking device (29) such that the internal locking member is held in the locking position of the electrically switchable locking device and is released in the unlocked position of the electrically switchable locking device,
wherein the internal locking member (24, 41) is formed as a single lever or lever means composed of a plurality of levers, wherein the single lever or at least one lever of the composite lever means pivotable about a first locking member pivot axis (23) directly on the latch (20, 43) is hinged and about a second locking member pivot axis (25) is pivotable, which is displaceable guided along a housing-fixed guide (28). Door opener according to one of the preceding claims,
characterized,
that the housing-fixed guide of the second locking member pivot axis (25) is designed as a linear guide (28). Door opener according to claim 2,
characterized,
that the linear guide is oriented perpendicular to the linear actuating direction of the bolt. Door opener according to one of the preceding claims,
characterized,
that the second locking member pivot axis is displaceable guided with a roller (26) guided along a housing-fixed rail (28). Door opener according to one of the preceding claims,
characterized,
in that in the locking position of the bolt (20; 43) the first locking member pivot axis (23) and the second locking member pivot axis (25) have a distance (A) oriented perpendicular to the actuating direction (22). Door opener according to one of the preceding claims,
characterized,
in that the transmission device has exactly one transmission element (15) which interacts with the actuator (10) and the latch (20) or has a plurality of mutually cooperating transmission elements (40, 41) connected between the actuator and the latch and with the actuator and cooperate with the bolt. Door opener according to one of the preceding claims,
characterized,
that the transfer means comprises an angular element (15), which is designed with a first angle leg (16), a second angle leg (17) and an angle vertex (18) arranged between the angle legs (16, 17), the transmission element (15) being connected to the actuator (10) at the angle vertex (18), the first angle leg (16) being around first pivot axis (19) is pivotally hinged to the door opener housing (8) and the second angle leg (17) on the latch (20) is arranged. Door opener according to one of the preceding claims,
characterized,
that the transfer means comprises a first transmission element (40) and a second transmission element (40), wherein the first transmission element is along a housing-fixed rail (28) is linearly guided carriage (40) and the second transmission element is the internal locking member (41). Door opener according to claim 8,
characterized,
in that the internal locking member (41) is pivotally connected to the carriage (40) about the second locking member pivot axis (25). Door opener according to claim 8 or 9,
characterized,
that the transmission device exactly two transmission element (40, 41) provides. Door opener according to one of the preceding claims,
characterized,
that the restoring means is a spring, in particular a torsion spring (33). Door opener according to claim 11,
characterized,
in that the torsion spring (33) is firmly connected to the door opener housing (8) on a spring vertex (34) and is arranged with a spring leg (35) on the bolt (20; 43) such that the spring leg (35), in particular in the Locking position of the bolt (20; 43), a restoring force on the latch (20; 43) exerts. Door opener according to one of the preceding claims,
characterized,
that the actuator is an electric motor (10) having a linear drive (12). Door opener according to claim 13,
characterized,
in that the electric motor (10) is mounted pivotably in the door opener housing (8) and / or on a guide curve in the door opener housing (8). Door opener according to one of the preceding claims,
characterized,
that the electrically switchable locking device is an electromagnet (29).

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