EP3282074A1 - Door opener - Google Patents

Abstract

The invention relates to a door opener (1) having a door opener latch (12) pivotally mounted in a door opener housing (11) and a remotely operable locking device having an actuator (13) and a rotatably mounted change (2) between a blocking position in which the door opener latch (12) is locked, and a release position in which the door opener latch (12) is released by the actuator (13) is switchable. In order to provide a door opener (1), on the one hand a high holding force and on the other hand has a high reliability, it is proposed that between armature (3) and change (2) a force-transmitting element (4) is arranged, which in the locked position directly to the change (2) and directly applied to the armature (3) and is either floating on the armature (3) or on the change (2).

Description

The invention relates to a door opener according to the features of the preamble of claim 1.

In practice, door openers on the one hand must have high holding forces and on the other hand can be unlocked with relatively little effort. From the DE 20 2010 002 544 U1 a door opener for installation in a door with a trap is known, which interacts with an acted upon by an anchor change. The armature has a roller which is arranged between armature and change in order to minimize the frictional forces occurring.

From the document AU 2000 66674 B2 For example, a door opener is known whose armature has an arm with a pointed end which cooperates with a pin of a locking member. With this door opener, the friction force should be minimized by reducing the contact surface between the armature and the pin.

From the US 4,056,277 a door opener is known which has a lockable via a toggle joint ball detent to lock the door latch.

The present invention has for its object to provide a door opener, which allows a high power transmission with a small space and thereby has a high reliability.

This object is achieved by a door opener with the features of claim 1.

The door opener has a force-transmitting element arranged between armature and change, which rests in the blocking position directly on the change and directly on the armature to lock the change, and wherein the force-transmitting element is mounted either floating on the armature or on the change , The floating support of the force-transmitting element either on the armature or on the change causes this force-transmitting element to move at least in the release position or during or after a shift from the lock position to the release position relative to the armature or relative to the change ,

For example, it can be provided that the force-transmitting element is movable in the release position relative to the armature and / or relative to the change. This minimizes frictional forces when switching the door opener from the blocking position to the release position and secondly reduces the necessary space due to the possible evasive movement of the force-transmitting element, since the components anchor and change with a very small distance from each other by the deflection of the force-transmitting element can be placed. In the locked position, the force-transmitting element is fixed between armature and change, so that high holding forces can be transmitted via the force-transmitting element between the armature and change.

It is provided in particular that the actuator of the door opener is designed as a third-party powered actuator. It may, for example, be an electromagnet, in particular a lifting or pulling magnet. The actuator may comprise an electric coil, or a hydraulic actuator or a pneumatic actuator. The actuator can also be designed as an electric motor. Fernbetätigbar means in this context that from a remote location of the actuator or the door opener is switchable. The circuit of the door opener can be done via a wired or wireless connection.

Preferably, the force-transmitting element is arranged between armature and change, that it transmits the majority of the force between armature and change, which is necessary to lock the door opener trap. Much of the force means more than 50% of the total force. In one embodiment, the force-transmitting element can transfer the entire force between armature and change, which is necessary to lock the door opener trap. That is, the change acts on the armature mainly or exclusively via the force-transmitting element or in the locked position, the armature does not touch the change.

Under armature of the door opener is understood to be a movably mounted in the door opener element, which is mounted linearly displaceable or rotatable either in the door opener housing. The anchor can be designed as a one-armed or multi-armed lever or as a slide. The armature can be acted upon directly or indirectly by the actuator to switch the door opener from the release position to the locked position.

Change is understood to mean one-arm or multi-lever or slider which is movably mounted in the door opener housing and, in the blocking position, blocks a movement of the door opener latch and releases a movement of the door opener latch in the release position.

Under a trap door latch is understood that cooperates in the installation situation with a latch to lock a door. The door opener latch is movable in the door opener housing, in particular mounted pivotably and / or linearly displaceable. In the release position of the door opener, the door opener latch is movable. In the locked position, the door opener latch is locked, i. it is fixed in the door opener housing.

In order to reduce the frictional forces when switching the door opener from the locking position to the release position, it is provided in particular that the force-transmitting element has a round outer contour, preferably a round cross-section. The round outer contour supports an evasive movement of the force-transmitting element.

In particular, it can be provided that the armature is mounted linearly displaceable in the housing via a sliding bearing, or that the armature is rotatably mounted in the housing via a rotary bearing. In order to bias the armature into a defined position, provision may be made for the armature to be acted upon by an armature spring acting between the housing and the armature in the direction of the actuator towards or in the direction away from the actuator.

In order to increase the reliability of the door opener, in particular when switching from the release position to the locked position, it can be provided that the force-transmitting element is acted upon in the release position via a spring or a magnet in a center position. The center position of the force-transmitting element ensures that the support between the change and anchor is as central as possible and thus a power transmission between armature and change is optimal. In particular, it can be provided that the armature or that the change has a permanent magnet, which acts on the force-transmitting element in the direction of a center position. In order to ensure the magnetic interaction, the force-transmitting element may comprise a magnetizable material or be formed of a magnetizable material.

In one embodiment, it is provided in particular that the actuator has an electrical coil and is designed as an electromagnet, preferably that the actuator is designed as an electric solenoid with a plunger, or as an electrical pull magnet with a plunger and actuates the armature via the plunger.

In a variant, it may be provided that the force-transmitting element is arranged between armature and change, that in the locked position, the change predominantly tensile forces on the force-transmitting element in the armature initiates, preferably by the force-transmitting element in the locked position on a pivot bearing or sliding bearing the armature facing away surface of the change is applied.

In an alternative variant, it can be provided, in particular, that the force-transmitting element is arranged between armature and change such that in the blocking position, the change predominantly introduces pressure forces via the force-transmitting element into the armature, preferably in that the force-transmitting element rests in the blocking position on a surface of the change facing a rotary bearing or sliding bearing of the armature.

In particular, the force-transmitting element is arranged such that the force-transmitting element is clamped in the locked position between armature and change and is held stationary relative to the armature and / or relative to the change.

In an advantageous embodiment, it is provided that the door opener has a working current / quiescent current switching. It can be provided in particular that the actuator or the coil in the housing is selectively fixed to one of two mutually offset coil positions, wherein a first coil position allows a working current control and the second coil position allows a closed-circuit control. In particular, the actuator or the coil can be displaceably mounted in the housing and be fixable by a detent and / or by means of a screw.

For a working current / quiescent current switching can be provided, for example, that the armature is switchable between three positions, the middle of these three positions blocks the change and the two end positions each release the change. This makes it possible to perform without a constructive intervention in the door opener, i. without having to remove or replace a component, the door opener can be switched between the working current control and the closed-circuit current control. In particular, it is provided that the coil switches the armature in the first coil position only between the middle position and the first end position and switches in the second coil position only between the middle position and the second end position.

In a compact embodiment of the door opener can be provided that the change has a recess with a particular U-shaped opening, which is arranged facing away from a pivot bearing or sliding bearing of the armature and engages the force-transmitting element in an end position and / or in the release position in the recess of the change.

In order to ensure a high power transmission in a small footprint, for example, the force-transmitting element may be formed as a solid pin, preferably steel pin. It is advantageous if the massive pin is floating in a slot. On the one hand, a mechanically stable mounting of the force-transmitting element in a first direction is ensured via the slot and on the other hand allows a defined relative movement in a second direction. The massive pin forms a needle bearing, so to speak. The solid pin or the needle bearing allows for relatively low frictional forces to transmit high lateral forces.

It can be provided that the anchor has the slot for storing the massive pin or that the change has the slot for storing the massive pin. The center loading of the massive pin can be done by the solid pin is magnetically loaded in the slot.

In a further embodiment it can be provided that the force-transmitting element is designed as a role or as a sleeve, preferably as a steel roller or steel sleeve. The floating bearing of the force-transmitting element can be ensured by, for example, provided that the armature has a retaining pin for supporting the sleeve or that the change has a retaining pin for supporting the sleeve and the inner diameter of the sleeve is greater than the outer diameter of the retaining pin. A Mittenbeaufschlagung the sleeve can be realized by the retaining pin is designed as a permanent magnet.

In order to clearly define the range of movement of the roller or sleeve despite floating bearing, it can be provided that the roller or the sleeve is mounted between two levels, preferably that a support of the armature forms the first plane and a cover of the housing forms the second level.

An application of the door opener according to the invention can be done for example in building doors with increased requirements. For example, the Door opener on doors with high sash weight, such as steel doors, such as those used in manufacturing, are used. Even with security doors, which have an increased security requirement, the door opener according to the invention can be used.

Fig. 1

eine schematische Darstellung des erfindungsgemäßen Türöffners an einer Gebäudetür;

Fig. 2

eine Darstellung eines Ausführungsbeispiels des erfindungsgemäßen Türöffners mit geöffnetem Türöffnergehäuse;

Fig. 3a-3c

eine Ausschnittsvergrößerung aus Fig. 2 im Bereich des Ankers in unterschiedlichen Positionen;

Fig. 4a-4c

ein zweites Ausführungsbeispiel des erfindungsgemäßen Türöffners in unterschiedlichen Positionen;

Fig. 5a-5c

ein erstes Ausführungsbeispiel des Ankers des Türöffners aus den Fig. 4a bis 4c;

Fig. 6a-6c

ein zweites Ausführungsbeispiel eines Ankers des Türöffners aus den Fig. 4a bis 4c.

Exemplary embodiments of the door opener according to the invention are described in the figures and the following description of the figures. Showing:

Fig. 1

a schematic representation of the door opener according to the invention on a building door;

Fig. 2

an illustration of an embodiment of the door opener according to the invention with open door opener housing;

Fig. 3a-3c

an excerpt from Fig. 2 in the area of the anchor in different positions;

Fig. 4a-4c

a second embodiment of the door opener according to the invention in different positions;

Fig. 5a-5c

a first embodiment of the armature of the door opener from the Fig. 4a to 4c ;

Fig. 6a-6c

A second embodiment of an anchor of the door opener from the Fig. 4a to 4c ,

In the individual figures, the door opener 1 according to the invention is shown partially in different embodiments. The basic structure of the door opener 1 is identical in the individual embodiments. In the figures and the description of the figures, identical reference symbols are used for the same components.

Fig. 1 shows a schematic representation of a building door 9. The building door 9 comprises a door frame 91 and on the door frame 91 via hinges 92a and 92b rotatably mounted door leaf. The door leaf 93 has a lock 94. To make the door, the lock 94 can be opened via a door handle 942 or a key. A firing latch 941 is mounted in the lock 94. In the area of the door frame 91, the door opener is opposite the lock 94 1 mounted. The door opener 1 comprises a door opener housing 11 with a pivotally mounted door opener latch 12. In the closed position, the latch 941 engages in a latch receiving space of the door opener 1 and cooperates with the pivotable door opener latch 12. The released door opener latch 12 is free to pivot about its longitudinal axis. This makes it possible to open the door 93 without operating the door handle. The latch 941 acts on a blocking surface of the door latch 12 and pivots it when opening the door.

When locked door latch 12 this is fixed and can not swing. In the closed position of the door leaf, the latch 941 cooperates with a blocking surface of the pivoting latch and abuts against it. That the door leaf 93 is locked in its closed position by the door latch latch and can not be opened. Only after retraction of the latch 941 in the door lock, for example by pressing the door handle or after unlocking the door latch 12, the door 93 can be opened.

The Fig. 2 shows a three-dimensional view of the door opener 1 with removed door opener cover. In the door opener housing 11, a latch 12 is pivotally mounted. The latch 12 has a latch base onto which a screw-on piece can be screwed by means of screws 12a, 12b. The trap 12 cooperates with a door opener change 2.

For in the FIGS. 1 to 6c When a door opener latch 12 is pivoted, it acts on the change 2. The change 2 is rotatably mounted in the door opener housing 11 via an axis of rotation 23. In the release position, the door opener latch 12 pivots the change 2 about this axis of rotation. In locked position, the change is locked 2 against pivoting. Ie. the case 12 is also locked because it rests against the change 2.

For switching the door opener 1, this has a locking device comprising an armature 3, a remote-controlled actuator 13. At the end of the change 2 remote from the axis of rotation 23, this change 2 interacts with the armature 3 via a force-transmitting element 4. The force-transmitting Element 4 transmits a large part, preferably the entire force between change 2 and armature 3, which is necessary to lock the door opener latch 12.

By way of a lifting magnet 13 mounted in the door opener housing 11, the armature 3 is switched between a blocking position and a release position. The solenoid 13 has a plunger 14, which extends from the solenoid and thereby actuates the armature 3.

In the FIGS. 3a to 3c is the in Fig. 2 shown door opener in the region of the armature shown in an enlarged view. An armature spring 31, which is arranged between door opener housing 11 and armature 3, acts on the armature 3 in its blocking position. The Fig. 3a shows the blocking position of the door opener 1. In this blocking position, the force-transmitting element 4 is fixed between the armature 3 and the change 2. The force-transmitting element 4 is formed as a sleeve 43. The sleeve is in the locked position on the one hand on a circular bearing surface 21 of the change and on the other hand on an angular contact area of the armature 3 at. The armature 3 has two support points for the sleeve 43, which are arranged at a distance from each other and contact the round outer surface of the sleeve 43 at two points. The armature 3 has, for example, two mutually angled bearing surfaces for the sleeve 43. Thus, the sleeve is fixed in the locking position 43 between the change 2 and the two support points of the armature 3. The change 2 is locked in the locked position by the support surface 21, which is in direct contact with the immovable sleeve 43. Ie. a pivoting of the change is prevented. The force-transmitting element 4 and the sleeve 43 brings in the locking position compressive forces in the armature 3 a.

In the Fig. 3b is shown an intermediate position of the door opener 1 when switching from the locking position to the release position. Here is the anchor 3 opposite the in Fig. 3a moved blocking position shown up or tilted. In this position, the force-transmitting element 4 and the roller 43 can escape upwards. This evasive movement is supported by the round outer contour of the sleeve 43, since this can move relative to the armature 3 as a result of the floating bearing on the mandrel 34. The change 2 acts on the outer contour the sleeve 43 and urges it up to the armature 3 and out of the support area of the support surface 21 addition.

In the Fig. 3c the release position of the door opener is shown. The change 2 has moved to its end position to the right. In this position, change 2 releases the latch 12 for pivoting. The sleeve 43 is held by the retaining pin 34 to the armature 3. The retaining pin 34 has a smaller outer diameter than the inner diameter of the sleeve 43. As a result, a floating mounting of the sleeve 43 is achieved. How out Fig. 3c can be clearly seen, the outer end of the change 2 is arranged very close to the anchor 3. About the slidable, ie floating support of the sleeve 43 ensures that despite this spatially cramped storage, the sleeve 43 can escape upwards, as for the evasive movement of the sleeve 43 not only the distance traveled by the anchor 3 way, but additionally by the floating Storage of the sleeve 43 provided movement scope is available. A possible hooking of the change 2 to the armature 3 or the force-transmitting element 4 is thus reliably prevented.

In the FIGS. 4a to 4c a second embodiment of the door opener 1 according to the invention is shown. The Fig. 4b shows the locked position of the door opener. In the Fig. 4a and 4c the door opener is shown in the release position.

In contrast to the embodiment previously shown, the armature 3 is formed in this case as a one-armed rotatably mounted lever. The armature is mounted via a pivot bearing 32 in the door opener housing. The force-transmitting element 4 is formed as a solid pin, for example as a steel pin, as in ua the Figures 5 and 6 you can see. The change 2 is formed as acted upon by a change spring 24 rotatably mounted change lever. About a rotation axis 23 of the change 2 is rotatably mounted in the door opener housing 11. For switching the door opener 1 from the locked position to the release position, a solenoid 13 is again provided which actuates the armature 3 via a plunger 14.

The change 2 has a U-shaped recess 22 in which the locking member 4 and the pin 41 in the release position, as in Fig. 4a shown, engages.

In the locked position of Fig. 4b is the force-transmitting element 4 or the steel pin 41 on a support surface of the change lever 2 at. The bearing surface is arranged on the side facing away from the case 12 of the change 2. That is, the change 2 brings about the force-transmitting element 4 tensile forces in the armature 3 a. Starting from the in Fig. 4b illustrated blocking position there are two ways to switch the door opener 1 in its release position. The armature 3 can be actuated by the plunger 14 of the actuator 13 upwards, so that the force-transmitting element 4, as in the Fig. 4c shown, is swung up out of the range of movement of the change 2. In this position is, as in Fig. 4c can be seen, the suspension of the change 2 canceled and this can in the in the Fig. 4c pivot shown release position.

The armature 3 is connected via a spring, not shown in the in the FIGS. 4a to 4c shown applied lower position. In the Fig. 4a the armature 3 is pivoted downwards. This means that the force-transmitting element 4 or the pin 41 is arranged in the U-shaped recess 22 of the change 2. Also in this position can change 2 in his in Fig. 4a Swivel shown release position. In the release position of the change 2 is arranged with its longitudinal side parallel to the longitudinal side of the door opener housing 11 and is applied to this.

The armature 3 thus has three different positions, wherein the middle position represents the blocking position of the door opener 1. The armature 3 is spring loaded and is in the in Fig. 4a acted upon release position shown. Ie. the armature 12 is spring-loaded in the direction of the actuator 13 or in the direction of the plunger 14. By the spring action is achieved that the armature 3 rests against the actuator 13 and the plunger 14.

In order to realize a working current / quiescent current switching of the door opener 1, the actuator 13 has a slide bearing and can be fixed at two different positions of the door opener housing 11. For this purpose, the housing 11 of the door opener 1 has a slot, not shown in the figures, through which a screw for fixing the actuator 13 engages. By loosening the screw, the actuator 13 and the solenoid 13 can be moved along the slot.

To set the two positions according to quiescent current or working current, the slot is contoured and has two conical countersinks which cooperate with the screw head. Each reduction corresponds to the position of the screw in the working current setting or the quiescent current setting. When tightening the screw, the screw head and thus the actuator 13 automatically positions itself in the correct position due to the conical depression.

In the Fig. 4a is the actor 13 at his in the Fig. 4a fixed in the lower position. In this position, the actuator 4 via the plunger 14, the armature 3 between the two positions, which in the Fig. 4a and 4b are shown. In other words, when the actuator 13 is actuated or switched, it sets the door opener 1 in its blocking position, as in FIG Fig. 4b shown. It is thus a quiescent current door opener. In the second position, the actuator 13, in contrast to the in Fig. 4a shown position shifted upward so that the plunger 14 already in its rest position the armature 3 in the in the Fig. 4b illustrated rest position deflects. This means that the door opener 1 is locked in this position of the actuator 13 in the rest position. When current flows through the actuator 13, the plunger 14 extends and actuates the armature 3 upwards, ie in the in the Fig. 4c shown release position. It is in this setting of the actuator 13 to the working current variant of the door opener. 1

The electrical connection of the door opener via a connection block 15 which in the FIGS. 4a to 4c is shown at the upper end of the door opener housing 11.

In the FIGS. 5a to 5c is a first embodiment of the armature 3 of the in the FIGS. 4a to 4c shown door opener 1 shown. The armature 3 has a fork-shaped armature housing with a slot 33. In the slot 33, the force-transmitting element 4, the steel pin 41, is received and stored in a floating manner. As indicated by the two arrows in the Fig. 5c indicated, the pin 41 can move along the longitudinal extension of the slot. The transverse extent of the slot 33 is matched to the diameter of the pin 41.

Furthermore, the armature 3 has a magnet 42, which is held in a bore of the armature 3. As from the representation of FIGS. 5b and 5c is apparent, is the Magnet 42 parallel to the pin 41 and adjacent to the in Fig. 5c shown center position of the pin 41 is arranged. The magnet 42 exerts an attraction force on the pin 41 and thus acts on this in his in the Fig. 5c illustrated center position.

In the Fig. 6a to 6c is a second embodiment of the armature 3 of the in the Fig. 4a to 4c shown door opener shown. Unlike in the Fig. 5a to 5c described door opener, this armature 3 has no magnet. For applying the steel pin 41 in his in the Fig. 6c illustrated center position, the armature 3 has two leaf springs 35, which the lower end, as in the Fig. 6b shown, grab on both sides and center it. About the centering of the force-transmitting element 4 and the pin 41 ensures that this is without an external influence in its center position and thereby in the locked position, as in Fig. 4b shown, in the middle of the bearing surface of the change lever 2 is applied. The length of the elongated hole 33, in which the steel pin 41 is mounted, is dimensioned such that it is shorter than the width of the support surface of the change lever 2. This ensures that even with shocks of the steel pin 41 can not migrate so far that inadvertently a release of the change lever 2 takes place. This ensures that even when shaken the door opener 1 locks securely and therefore is also secured against manipulation attempts.

LIST OF REFERENCE NUMBERS

9

door

91

doorframe

92a, b

door hinges

93

door

94

lock

941

latch

942

door handle

1

Door Opener

11

door opener housing

12

strike latch

12a, b

screw

13

Actuator, coil

14

tappet

15

terminal block

2

change

21

bearing surface

22

recess

23

axis of rotation

24

exchange spring

3

anchor

31

armature spring

32

pivot bearing

33

Long hole

34

holding mandrel

35

laminated spring

4

force transmitting element

41

pen

42

magnet

43

shell

Claims (15)

Door opener with a housing (11) for installation in a door (9) with a door frame (91) and a door wing (92) which can be moved, in particular pivotally mounted thereon,
with a door opener latch (12) movably mounted in the housing (11), a remotely operable locking device and an interposed change (2) which is designed as a one-armed or multi-arm lever or slide mounted in the housing and cooperates with the door opener latch (12) in such a way in that the door opener latch (12) can be switched into a blocking position and a release position.
wherein it is provided that the locking device comprises a remote-actuated actuator (13) and an armature actuated by this (3), which interacts with the change (2) so that this between a blocking position in which the change (2) the door opener trap ( 12) locks, and a release position in which the change (2) the door opener latch (12) releases, is switchable, characterized
that between armature (3) and change (2) a force-transmitting element (4) is arranged, which in the blocking position directly to the change (2) and directly against the armature (3) to lock the change (2), and wherein the force-transmitting element (4) is either floating on the armature (3) or on the change (2). Door opener according to claim 1,
characterized,
that the force-transmitting element (4) in the release position relative to the armature (3) and / or relative to the change (2) is movable, and in particular a round outer contour, preferably a round cross-section. Door opener according to one of claims 1 or 2,
characterized,
that the armature (3) in the housing (11) via a sliding bearing is linearly displaceable, or that the armature (3) in the housing (11) via a rotary bearing (32) is rotatably mounted, and / or
in that the armature (3) is acted upon by an armature spring (31) acting in the direction of the actuator (13) towards or in the direction of the actuator (13) through a housing (11) and armature (3). Door opener according to one of the preceding claims,
characterized,
in that in the release position the force-transmitting element (4) is acted upon by a spring (35) or a magnet (42) in a middle position, preferably that the armature (3) or that the change (2) has a permanent magnet (42) the force-transmitted element (4) acted upon in the direction of a center position. Door opener according to one of the preceding claims,
characterized,
that the force-transmitting element (4) comprising a magnetizable material or is formed of a magnetizable material. Door opener according to one of the preceding claims,
characterized,
in that the actuator (13) has an electrical coil and is designed as an electromagnet, preferably in that the actuator is designed as an electric lifting magnet or as an electric pull magnet with a plunger (14) and actuates the armature (3) via the plunger (14). Door opener according to one of the preceding claims,
characterized,
that either the force-transmitting element (4) between armature (3) and change (2) is arranged, that in the locking position of the change (2) predominantly tensile forces on the force-transmitting element (4) in the armature (3) initiates, preferably by the force-transmitting element (4) rests in the blocking position on a surface of the changeover (2) facing away from a rotary bearing (32) or sliding bearing of the armature (3), or
in that the force-transmitting element (4) is arranged between armature (3) and change (2) such that in the blocking position the change (2) predominantly introduces compressive forces via the force-transmitting element (4) into the armature (3), preferably by the force-transmitting element (4) abuts in the blocking position on a surface of the changeover (2) facing a rotary bearing (32) or sliding bearing of the armature. Door opener according to one of the preceding claims,
characterized,
is that the force-transmitting element (4) in the locking position between the armature (3) and clamped exchange (2) and relative to the armature (3) and / or relative to the exchange (2) held stationary. Door opener according to one of the preceding claims,
characterized,
in that the actuator (13) or the coil in the housing (11) can be fixed optionally at one of two mutually offset coil positions, wherein a first coil position enables a working current control and the second coil position enables a closed current control, wherein it is preferably provided that the armature ( 3) is switchable between three positions, wherein the middle of these three positions blocks the change (2) and the two end positions respectively release the change (2), in particular that the actuator (13) or the coil, the armature (3) in the first Coil position only switches between the middle position and the first end position and switches in the second coil position only between the middle position and the second end position. Door opener according to one of the preceding claims,
characterized,
that the exchange (2) has a recess, preferably a U-shaped recess (22) whose opening is disposed opposite a pivot bearing (32) or sliding bearing of the armature (3) and the force-transmitting element (4) in an end position and / or engages in the release position in this recess (22). Door opener according to one of the preceding claims,
characterized,
in that the force-transmitting element (4) is designed as a solid pin (41), preferably as a steel pin, wherein the solid pin (41) is floatingly mounted in a slot (33), it being preferably provided that either the armature (3 ) has the slot (33) for supporting the solid pin (41), or that the change has the slot (33) for supporting the solid pin (41). Door opener according to claim 11,
characterized,
that the solid pin (41) in the slot (33) is magnetically acted upon. Door opener according to one of claims 1 to 10,
characterized,
in that the force-transmitting element (4) is designed as a roller or as a sleeve (43), preferably as a steel roller or steel sleeve. Door opener according to claim 13,
characterized,
in that the armature (3) has a holding mandrel (34) for supporting the roller or the sleeve (43) or that the change (2) has a retaining pin for supporting the roller or sleeve (43) and the inner diameter of the roller or sleeve ( 43) is greater than the outer diameter of the retaining pin (34), and wherein preferably the retaining pin (34) is designed as a permanent magnet. Door opener according to claim 13 or 14,
characterized,
in that the roller (43) or the sleeve is mounted between two planes, preferably that a support of the armature (3) forms the first plane and a cover of the housing (11) or a housing cover forms the second plane.

Images