EP2543797B1 - Door opening device with permanent magnet - Google Patents

Description

The invention relates to a door opener device for use in a door with a movable door frame mounted in a fixed door frame. The door opener device comprises an electrically controllable door opener with a movably mounted door opener trap and an electrically switchable locking device, via which the door opener latch is movable into a blocking position and into a release position, in order to lock the door leaf in the closed position of the door in the blocking position of the door opener latch and in the Release position of the door opener latch to release the door from the closed position of the door to open the door. Furthermore, the door opener device comprises a counter element cooperating with the door opener latch.

• Der Türöffner mit der Türöffnerfalle kann am ortsfesten Türrahmen und das Gegenelement am Türflügel gelagert sein. Es ist jedoch auch möglich, dass das Gegenelement am ortsfesten Türrahmen und der Türöffner mit der Türöffnerfalle am Türflügel gelagert sind.

As far as the installation of the door opener device is concerned:

• The door opener with the door opener latch can be mounted on the stationary door frame and the counter element on the door leaf. However, it is also possible that the counter element are mounted on the stationary door frame and the door opener with the door opener latch on the door leaf.

In the following, some definitions of terms are given first: The term "door opener" is to be understood in the present application as "electrically operated door opener". It is an "electrically operated locking device for a door". The locking device has an electrically actuatable locking device and a door opener latch. The output-side locking member of the locking device interacts with the door opener trap directly or indirectly and switches the door opener latch in a blocking position and a release position. Locked position means that the door latch is blocked and therefore the door can not be opened. Release position means that it is released and the door can be opened. 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. Ie. 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; However, such an aggregate may 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 can also be a non-walkable, comparable closure device in the construction or furniture sector act, such as a smoke damper.

To lock the door leaf in the closed position engages in the closed position of the door, the counter element arranged on or at least in the region of the door latch latch portion of the door opener. When switched in blocking position door opener trap counter element is held there in abutment, that is, found, and locks the door in the closed position. When the door opener latch is switched to the release position, the counter element is released, that is, found and unlocked the door. In the blocking position switched door opener trap thus means that the door opener trap is detected, that is blocked against movement. In the release position switched door opener trap means that the door opener trap is not detected, that is not blocked against movement.

In practice, such door openers are usually mounted on the fixed door frame, and concealed installed in the door frame. The counter element is usually formed in conventional practice by a wing-side spring-mounted lock latch, which has an inlet slope. When closing the door leaf in the closed position, the inlet slope of the latch on the door opener trap comes to a stop. As a result, the latch is retracted counter to the spring acting on it, that is, the latch is suppressed, the door passes into the closed position. In the closed position, the latch is automatically extended under the action of the spring, so that the latch is extended in the closed position of the door and engages behind the locking portion of the door latch. The latch case stands with its straight stop surface on the locking portion of the door opener trap. The door leaf is thus locked in the closed position. He can only get out of the closed position be opened again when the door opener trap is unlocked, that is, the determination of the door opener trap is canceled. Such door openers are for example in DE 42 29 239 C1 . DE 102 24 351 B3 and in the WO 2010/012496 A1 described.

A disadvantage of these conventional products is that for the automatic engagement of the latch in the door latch latch, the latch must therefore be formed spring-loaded überdrückbar. For this purpose, it is provided that it has a latch spring, which acts on the latch in its extended position and has a slope to be suppressed when closing under attack on the door latch.

From practice so-called self-locking locks are known. In these locks, a lock bolt is provided on the outside with a permanent magnet. The locking plate cooperating with the lock bolt is also provided with a permanent magnet. The permanent magnets are designed so that the lock bolt is automatically extended under the action of the magnetic force in the strike plate inside, as soon as the door comes in the closed position. To open the door, it is necessary to unlock the lock. This is done by the lock latch is mechanically retracted, by hand by means of a key or motor by means of a drive motor. Such a lock device describes, for example, the DE 20 2010 015 979 U1

The invention has for its object to provide a door opener, which ensures automatic engagement of the latch in the door latch latch with then secure locking the door even with other design of the latch. According to the invention, embodiments are sought in which the lock latch is not extended when the door is open.

The invention solves this problem with the subject of claim 1 or claim 2. It is a door opener with an electrically controllable door opener with movably mounted door latch latch, the door latch latch interacts with a counter element, which may be designed as a latch. An essential feature of the solution is that the counter element has a magnet and the door opener trap has a magnetizable material cooperating with the magnet of the counter element or a magnet interacting with the magnet of the counter element. Alternatively, it can be provided that the door opener latch has a magnet and the counter element interacting with the magnet of the door latch case magnetizable material or a cooperating with the magnet of the door latch case magnet. These two alternatives provide the common basic principle that the door opener latch and the counter element interact magnetically with each other, wherein the first alternative concretely provides that at least the counter element has a magnet and the second alternative provides that at least the door opener latch has a magnet. The term "magnet" is understood here and in the following text to be a permanent magnet or an electromagnet. By the term "magnetizable material" is a ferromagnetic material or other magnetizable material, for. B. understood paramagnetic material. The term "magnet of the counter element" is understood to mean a magnet arranged on the opposite side. Accordingly, the term "magnet of the door opener trap" is understood to mean a magnet arranged on the door opener latch side. Accordingly, under the terms "magnetizable material of the counter element" or "magnetizable material of the door opener trap" understood a magnetizable material that is arranged on the counter element side or door opener trap side. With the magnetic interaction of door latch latch and latch a particularly secure engagement and / or stop position between the door opener and latch is obtained in the closed position of the door. According to the invention it is provided that the counter element between an extended and a retracted, ie retracted position is movable and that the counter element is extended in the closed position of the door by the action of the magnet of the counter element and / or the magnet of the door latch. Here, the counter element is acted upon by a spring such that when not in the closed position door counter element retracted under the action of the spring, that is withdrawn, and that standing in the closed position door counter element under magnetic action between door latch and counter element against the effect the spring is extended. In these embodiments of the invention, the counter element is retracted with the door open in each case in the door, that is withdrawn. The latch is extended only in the closed position of the door. This results in handling advantages in terms of a secure closed position. Furthermore, there are optical advantages with the door open due to the fact that the latch bolt retracted when the door is open and is not visible. In these embodiments, the counter-element may be formed as a resilient latch trap without inlet slope.

A particularly effective magnetic force is obtained with versions in which both the counter element and the door opener trap a Have magnets and is provided that the magnet of the counter element and the magnet of the door latch latch are configured and arranged so that the facing ends of the permanent magnets have different polarity. In preferred embodiments, the magnets are poled to attract each other. However, embodiments are also possible in which the magnets are arranged and poled so that they repel each other and thus a repulsive effect between door latch and lock latch is obtained. In the case of these embodiments, this can be implemented in such a way that the latch falls out of engagement with the door-opener trap under the action of magnetic force. This can be used when the door is opened from the closed position by hand or motor, preferably under the action of magnetic force.

Preferably, the magnet, which may be formed in particular as a permanent magnet, formed as a separate component. This applies to designs in which the counter element has a magnet. In this case, the magnet of the counter-element is thus preferably designed as a component formed separately from the counter-element. However, the possible principle of separate formation of the magnet also applies to the magnet of the door latch. In this case, it can be provided that the magnet of the door opener latch is designed as a component formed separately from the door opener latch.

High functionality and practicality results when the magnet of the counter element and / or the magnet of the door opener trap are arranged concealed by a portion of the counter element or the door opener trap. This results in a protected arrangement of the magnet, so that as little as possible mechanical wear occurs on the magnet. The concealed arrangement of the magnet is preferably realized so that the magnet hidden behind a preferably made of magnetizable, z. B. ferromagnetic material existing component is arranged and is in contact with this made of magnetizable material component. This results in a magnetization of the magnetizable material, so that the magnetic interaction of door latch latch and latch can be done by an interaction of magnet and magnetizable material. The concealed arrangement of the magnet, preferably permanent magnets, in a component receiving the magnet can thus be designed so that the receiving component of a magnetizable material, for. B. made of ferromagnetic material. However, embodiments are also possible in which the receiving component consists of a non-magnetizable material, namely z. As zinc die-casting or brass or plastic. The formed of non-magnetizable material member which receives the magnet is designed so that it can reach the magnetic field required for magnetic interaction at least in the relevant section.

The adjustability of the door latch latch to the local geometric features is made possible in particular embodiments in that in particular embodiments, the door latch case a movably mounted body and a releasably fixable on the body case body preferably made of magnetizable material and the magnet of the door latch between the body and the Trap body is arranged. In a preferred development, it can be provided here that the base body and / or the latch body has or have a receiving recess for the magnet. It can be provided here that the receiving recess complementary to the magnet and / or is formed complementary to the engaging in the receiving recess portion of the magnet. By this complementary configuration of the recess and the magnet, a positive reception of the magnet in the recess is possible, which provides assembly and handling advantages.

In the embodiments in which the case body is detachably fixable on the base body, can be provided with particular advantage that the case body in a variably adjustable position on the base body is releasably fixed. This results in an adjustability of the case body on the body of the door opener trap. The door opener trap can thus be adjusted so that the latch bolt engages in the closed position of the door without play.

Embodiments are possible which provide that the electrically switchable locking device of the door opener has an electromagnet, this electromagnet also being used as a magnet of the door opener latch. That is, the electromagnet of the locking device also has the function of cooperating with the magnetizable material or the magnet of the counter-element. The electromagnet is preferably to be designed in such embodiments, for. B. with an anchor with special yoke to take over the said dual function.

The invention will be described in more detail with reference to figures.

Fig. 1

eine schematische Frontansicht einer Tür in Schließstellung mit einer erfindungsgemäßen Türöffnereinrichtung aus einem im ortsfesten Türrahmen eingebauten Türöffner und einer in dem Türflügel angeordneten Schlossfalle;

Fig. 2

eine perspektivische Explosionsdarstellung eines erfindungsgemäßen Türöffners;

Fig. 3a

einen vergrößerten Ausschnitt des Türflügels in Fig. 1 im Bereich der Schlossfalle in Schließstellung der Tür;

Fig. 3b

eine Fig. 3a entsprechende Darstellung, jedoch bei geöffneter Tür

Show

Fig. 1

a schematic front view of a door in the closed position with a door opener device according to the invention from a in fixed door frame built-in door opener and arranged in the door latch lock;

Fig. 2

an exploded perspective view of a door opener according to the invention;

Fig. 3a

an enlarged section of the door leaf in Fig. 1 in the area of the latch in the closed position of the door;

Fig. 3b

a Fig. 3a corresponding representation, but with the door open

In the embodiment shown in the figures, an electrically switchable door opener 1 is installed in a stationary door frame 2a of a door. The door has a door leaf 2b, which is rotatably mounted on bands 2c on the door frame 2a. The door 2 b is designed as a stop-wing. FIG. 1 shows the door 2b in the closed position.

It is referred to FIG. 1 combined with FIG. 2 , The door opener 1 has a door opener latch 11 and a non-illustrated electrically switchable locking device. The door opener latch 11 is movably mounted in a storage rack 11t of the door opener and can be brought by the blocking device into a blocking position and into a release position. In the blocking position the door opener latch 11 is detected. In the release position, the door opener latch is released, that is not detected.

At the in FIG. 2 illustrated embodiment, the door opener latch 11 is designed as a pivot latch, that is, it is pivotable about a rotation axis 11a in the storage rack 11t. In the case shown, there is the Door opener latch 11 from a pivotally mounted base body 11g and a thereto on fastening screws 11sb releasably fixed Aufschraubstücks 11s. As in FIG. 2 recognizable, a permanent magnet 12 is mounted between the Aufschraubstücks 11s and the base body 11g. For this purpose, the base body 11g on the side facing the Aufschraubstücks 11s a receiving recess 11 ga on. Alternatively or additionally, the Aufschraubstücks 11s on the base body 11g side facing also have a receiving recess 11sa. The permanent magnet 12 is inserted complementary in the or the receiving recesses 11 ga, 11sa. The permanent magnet 12 is formed in the illustrated case as a cylindrical disk element. The Aufschraubstücks 11s may be formed of magnetizable material. However, embodiments are also possible in which the Aufschraubstücks 11s is not formed of magnetizable material, but only designed and configured so that the magnetic field of the permanent magnet 12 through the Aufschraubstücks 11s acts therethrough. In a concrete embodiment with the structural design of FIG. 2 For example, it has been found to be advantageous to form the screw-on piece 11s made of brass (CuZn44Pb2) and the barrel base 11g made of die-cast zinc (GD-ZnAl4Cu1).

The door opener latch 11 cooperates in the closed position of the door with a latch bolt 21 mounted on the wing side. The latch 21 is movable in the door leaf 12b, preferably mounted displaceably. It can occupy a retracted position in the door and an extended position. The latch 21 is supported on a latch spring 21f. The spring 21f acts on the latch 21 in its retracted position. The latch 21 is formed in the specific embodiment of ferromagnetic material. It acts in the closed position of Door with the magnetic door opener latch 11 together. It is extended by the permanent magnet 12 and the preferably ferromagnetic Anschraubstücks 11s of the door latch 11 against the action of the latch spring 21f by magnetic force in its extended position, so that the latch 21, the door latch 11 engages behind. In modified embodiments, the latch 21 may also be equipped with a permanent magnet. The latch may be formed here as a plastic bar, in which the permanent magnet is embedded.

The FIG. 1 shows in conjunction with FIG. 3a as in the closed position of the door, the latch 21 is extended and how the extended latch 21, the door opener latch 11 engages behind. The door 2b is locked in the illustrated closed position of the door when the door latch 11 is switched to the locked position, that is, the door latch 11 is detected by the electrically switchable locking device of the door opener.

The door is unlocked in the closed position by the door opener 1, that is, the electrically switchable locking device of the door opener 1 is electrically controlled in accordance to release the door latch 11. If now the door is opened, that is, the door 2b is moved from the closed position in the opening direction, the door opener latch 11 is swung out by the locking latch 21 in abutment with it. This means that the door opener latch 11 pivots out of its closed position about the pivot axis 11a, so that the latch 21 can pass to open the door. As soon as the latch 21 has passed the door opener latch 11 when the door is opened and the door leaf is outside the closed position, the latch 21 is located outside the door opener latch 11 and thus outside its magnetic position Action, so that the latch 21 is automatically retracted under the action of the latch spring 21f.

LIST OF REFERENCE NUMBERS

1

Door Opener

2

door

2a

doorframe

2 B

door

2c

tape

11

strike latch

11t

storage rack

11a

Rotary axis of the door opener trap

11g

body

11ga

Receiving recess in the body

11s

mounted attachment

11SA

Receiving recess in Aufschraubstück

11SB

Fixing screws of the screw-on piece

12

permanent magnet

Claims (11)

1. Door opener device for use in a door, having a door leaf (2b) moveably mounted in a stationary door frame (2a), comprising

   a) an electrically controllable door opener (1), having a moveably mounted door opener latch (11) and an electrically switchable locking device by means of which the door opener latch (11) can be brought into a locking position and into a releasing position in order to fix the door leaf (2b) in the closed position of the door when the door opener latch (11) is in the locking position and to release the door leaf (1a) from the closed position of the door to open the door when the door opener latch (11) is in the releasing position, wherein, in the locking position, the door opener latch (11) is secured, i.e. prevented from moving, and wherein, in the releasing position, the door opener latch (11) is not secured, i.e. is not prevented from moving, and

   b) a counter element (21) interacting with the door opener latch (11), wherein the door opener (1) having the door opener latch (11) is mounted on the stationary door frame (2a) and the counter element (21) is mounted on the door leaf (2b) or the counter element (21) is mounted on the stationary door frame (2a) and the door opener (1) having the door opener latch (11) is mounted on the door leaf,

   wherein it is provided that

   (i) the door opener latch (11) has a magnet (12) and the counter element (21) has a magnetisable material that interacts with the magnet (12) of the door opener latch (11) or a magnet that interacts with the magnet (12) of the door opener latch (11),

   (ii) the counter element (21) can be moved between an extended and a retracted, i.e. withdrawn, position,

   (iii) the counter element (21) is loaded by a spring (21f) in such a way that, when the door is not in the closed position, the counter element (21) is retracted, i.e. withdrawn, under the effect of the spring (21f),

   (iv) when the door is in the closed position, the counter element (21) is extended under a magnetic influence between the door opener latch (11) and counter element (21), against the effect of the spring (21f),

   (v) the door opener latch (11) has a moveably mounted base body (11g) and a catch body (11s) that can be removably fixed on the base body (11g) in a variably adjustable position and is made of a magnetisable material and the magnet of door opener latch is arranged between the base body and the catch body.
2. Door opener device for use in a door, having a door leaf (2b) moveably mounted in a stationary door frame (2a), comprising

   a) an electrically controllable door opener (1) having a moveably mounted door opener latch (11) and an electrically switchable locking device by means of which the door opener latch (11) can be brought into a locking position and into a releasing position in order to fix the door leaf (2b) in the closed position of the door when the door opener latch (11) is in the locking position and to release the door leaf (1a) from the closed position of the door to open the door when the door opener latch (11) is in the releasing position, wherein, in the locking position, the door opener latch (11) is secured and prevented from moving, and wherein, in the releasing position, the door opener latch (11) is not secured and is not prevented from moving, and

   b) a counter element (21) interacting with the door opener latch (11), wherein the door opener (1) having the door opener latch (11) is mounted on the stationary door frame (2a) and the counter element (21) is mounted on the door leaf (2b) or the counter element (21) is mounted on the stationary door frame (2a) and the door opener (1) having the door opener latch (11) is mounted on the door leaf,

   wherein it is provided that

   (i) the counter element (21) has a magnet (12) and the door opener latch (11) has a magnetisable material that interacts with the magnet (12) of the counter element (21) or a magnet (12) that interacts with the magnet (12) of the counter element (21),

   (ii) the counter element (21) can be moved between an extended and a retracted, i.e. withdrawn, position,

   (iii) the counter element (21) is loaded by a spring (21f) in such a way that, when the door is not in the closed position, the counter element (21) is retracted, i.e. withdrawn, under the effect of the spring (21f)

   (iv) when the door is in the closed position, the counter element (21) is extended under a magnetic influence between the door opener latch (11) and the counter element (21), against the effect of the spring (21f).
3. Door opener device according to claim 2,
   characterised in that
   the door opener latch (11) has a moveably mounted base body (11g) and a catch body (11s) that can be removably fixed on the base body (11g) and is made of a magnetisable material and the magnet of the door opener latch is arranged between the base body and the catch body.
4. Door opener device according to claim 3,
   characterised in that
   the catch body (11s) can be removably fixed on the base body (11g) in a variably adjustable position.
5. Door opener device according to one of the preceding claims,
   characterised in that
   the base body (11g) and/or the catch body (11s) has or have a receiving recess (11ga, 11sa) for the magnet (12).
6. Door opener device according to claim 5,
   characterised in that
   the receiving recess (11ga, 11sa) is formed to be complementary to the magnet (12) and/or complementary to the section of the magnet (12) engaging in the receiving recess (11ga, 11sa).
7. Door opener device according to one of the preceding claims,
   characterised in that
   the magnet (12) of the counter element (21) and the magnet (12) of the door opener latch (11) are arranged in such a way that the ends of the magnet (12) facing towards each other have different polarities.
8. Door opener device according to one of the preceding claims,
   characterised in that
   the magnet (12) of the counter element (21) is formed as a component that is formed separately from the counter element (21).
9. Door opener device according to one of the preceding claims,
   characterised in that
   the magnet (12) of the counter element (21) is arranged so as to be covered by a section of the counter element (21).
10. Door opener device according to one of the preceding claims,
    characterised in that
    the magnet (12) of the door opener latch (11) is formed as a component that is formed separately from the door opener latch (11).
11. Door opener device according to one of the preceding claims,
    characterised in that
    the magnet (12) of the door opener latch (11) is arranged so as to be covered by a section of the door opener latch (11).

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