DE102009004505A1 - Door operator for actuating a door leaf - Google Patents

Abstract

The invention relates to a door operator (1) which is adapted to pivot a door leaf in at least one direction. The door operator (1) is provided with a drive unit (4, 5, 18) and a closer shaft (2) for actuating the door leaf, which via a mechanical operative connection with the drive unit (4, 5, 18) of the drive unit in the at least one Direction is driven. The mechanical operative connection comprises at least one element (5), which performs a movement when driving the closer shaft (2) by the drive unit (4, 5, 18). The door operator (1) further comprises an electrical switch (3, 3 '), which is mechanically actuated by the movable element (5) such that electrical information about an open position of the rotary vane is provided.

Description

The The present invention is directed to a door actuator which is arranged a connected rotary wing to open and / or close d. H. a connected door leaf to pivot in at least one direction. The door operator points a drive unit and a closer shaft for actuating the door leaf on. The closer shaft is over one mechanical operative connection can be driven by the drive unit, wherein the mechanical operative connection comprises at least one element which when driving the closer shaft by the drive unit performs a movement.

Door operator of present type can be designed as a purely mechanical door closer, so that the drive unit comprises only one spring energy store, the one closing spring which is tensioned by a manual opening of the door, so that the closing movement the door through the closing spring accomplished can be. Therefore must between the spring energy storage and the closer shaft a gear can be provided, for example, a cam comprises, against which a pressure roller runs, wherein the pressure roller against pressed the cam is applied and the pressure force by the spring force accumulator becomes. The connecting link between the spring energy accumulator and the Pressure roller can represent an element that is a linear movement performs. Furthermore, in the closing spring stored energy over other transmission designs are transmitted to the closer shaft, this are pinion rack assemblies known, whereby mechanical-fluidic power transmissions are possible, which also have at least one movable element.

Further embodiments of door drives own an electric drive motor, either individually or additionally for Federkraftspeicher can drive the closer shaft, namely in a to the effect of the closing spring opposite direction. By rotation of the closer shaft becomes the door leaf between a closed position and an open position moved, wherein the operative connection between the closer shaft and the door leaf often a sliding arm, which is guided in a slide rail end. In the present case, the operative connection between the closer shaft and the door leaf but also according to everyone be executed further known design.

Around the closer shaft to drive with the electric drive motor is or is a Gear and / or a pump provided, which or which also may have an element that a movement and in particular performs a linear movement. In the present case, the Drive unit consequently both an electric drive motor as well as a spring energy storage. The mechanical connection between the drive unit and the closer shaft, each type of Gearbox comprising one or more movable elements.

Around the opening state of the door leaf the door To detect, rotary encoders are commonly known in the transmission Drive of the closer shaft be arranged and output an electrical signal. such Encoders are controlled by means of a relatively complex electronics or readable, and in case of failure of the electronics, in particular in door arrangements with a closing sequence control, may continue to exist the need for a simple electrical Signal over the opening state of the door leaf to obtain. A decoupling of the closing sequence control of the electrical Control of the individual door drives the door leaves is in known door drives not possible, so only with elevated Effort an electrical signal as information about the opening and closing state of the door leaf available is.

It Therefore, the object of the present invention, a door operator, preferably a door drive, to provide a simplified set-up to provide a electrical signal over the open position a door leaf having.

These Task is based on a door operator for actuating a door leaf according to the generic term of claim 1 in conjunction with its characterizing features solved. Advantageous developments of the invention are specified in the dependent claims.

The Invention includes the technical teaching that provided an electrical switch is, by a movable element of the door operator according to the invention in such a way actuated is that provides electrical information about an opening position of the rotary wing becomes. Ie. the electric switch is the movable element mechanically operated.

According to the invention, it is provided the electric switch through the movable element so actuate, that the electrical switch is then preferably an electrical Information is output when the door leaf occupies a certain opening position. The provision of electrical information is therefore of maybe one also present encoder in the transmission of the door operator decoupled. However, the arrangement of the electrical switch can in addition to be provided a rotary encoder, wherein the electrical switch can be designed as a simple on-off switch.

advantageously, a drive unit of the door actuator according to the invention has an electric drive motor on, preferably switched off by the electrical switch is. The opening position leading to shutdown of the door operator connected door leaf preferably corresponds to the end impact of the door leaf, so that the shutdown device by the electrical switch, preferably in the final impact of the door leaf he follows. The end impact describes the maximum possible opening position of the door leaf, so that shuts off in this position, the electric drive motor must be, with the shutdown by the electrical switch can be done. The electrical switch can be within the door operator such be arranged that the actuation of the electric switch with the position of the end stop of the door leaf corresponds.

alternative or additionally is the drive motor when driving the door leaf in the at least one Directed as a generator. This sets the drive motor preferably the closing movement of the door leaf a predetermined resistance, thus dampens the movement of the door panel. The electrical switch is connected in such a way to the drive motor, that when pressed of the electrical switch, the predetermined resistance of the drive motor changed becomes. This is a change in the damping behavior possible without hydraulic aids.

To the electrical switch is preferably between an electrical Load resistor and the drive motor connected in series. Thereby creates an enormously simple interconnection of the electrical switch. Preferably, apart from drive motor and electrical switch, the entire interconnection part of a control for the door drive.

Depending on the installation situation of the door can the final blow of the door leaf for example, at an opening angle of 90 °, where also an opening angle from 120 ° and can occur more. Preferably, the electrical switch is on simple way so mechanically absorbed in the door drive, that the output of the electrical information about reaching the end impact of the door leaf in the right position he follows. As soon as the door leaf reaches the final stroke, can the electric drive motor through the electric switch be disconnected, this being connected to a controller can be so that the electrical information is only the shutdown causes the electric drive motor by the controller. The electrical information about the opening state of the door leaf can also only for monitoring serve the door, For example, by means of a central, existing in a building Control center.

According to one further advantageous embodiment the drive unit has a spring force accumulator with a closing spring, with the closer shaft is connected and over the opening movement of the door leaf looking forward and over the closing movement of the door leaf is relaxed again. By relaxing the closing spring becomes a movement of the door leaf in the closed position causes, with the operative connection between the closing spring and the closer shaft the movable element comprises. The movable element can be between the closing spring and the closer shaft be arranged and designed as a flap car, which has a Rod, a pull and / or push rod, with the closing spring is connected and to which a pressure roller is received, which is above the Rolling cam, sitting on the closer shaft.

The Rod preferably extends through the closing spring through and is connected to the flap car or fixed to this attached, against which the closing spring is supported. Becomes For example, applied a tensile force on the rod, so compressed the closing spring, and the pole leads a linear motion. The rod is preferably rigid with the flap carriage connected so that it moves with the rod alike. For example, the door leaf open, either manually or by any existing electrical Drive motor, so rolls off the pressure roller on the cam, wherein the radial distance of the pressure roller from the axis of rotation of the closing spring increases. This increase in the radial distance leads to a linear movement of the flap carriage and the rod, whereby the closing spring is compressed. Consequently, the movement position corresponds the flap carriage with the respective opening position of the door leaf. The electric switch can be arranged in the vicinity of the flap carriage be that he through the flap-type car when performing its linear motion actuated becomes.

The door operator may be provided in a door assembly having a stationary leaf and a walking wing. In such door arrangements closing sequence controls are provided, so that initially the inactive leaf, an open position, for example, the closed position must take, in which a safe closing of the active leaf is guaranteed to subsequently close the active leaf, as this overtops the inactive leaf with a door rebate. For this purpose, preferably mechanical coupling elements are provided between the door operator of the inactive leaf and the door operator of the active leaf, wherein a part of these coupling elements may comprise a signal plunger which is arranged on the flap carriage and mitbewegbar with this. The electrical switch can therefore be so for example in the low-wing door operator be arranged that it can be operated by the movement of the signal plunger. For this purpose, the signal tappet may have an actuating lug which cooperates with a triggering element of the electrical switch for its actuation. The signal tappet may extend in a longitudinal direction which runs parallel to the extension direction of the closing spring, wherein the signal tappet may be arranged adjacent to the spring force accumulator.

It is of particular advantage when the switch receptacle for recording of the electrical switch by means of receiving elements on a base of the door drive and / or recorded on the spring energy store. The switch holder can do this with the electric switch in the direction Rich to move be designed adjustable the signal plunger for the trigger of the electrical switch from the open position of the door leaf adjustable form. Especially with differently wide opening Door leaves can such a simple adjustment of the position of the electric switch done so that this example, in an open position from 90 ° or for example, at an opening position from 120 ° or about that In addition, the Endschlag position of the door leaf detected.

Around the switch receptacle by means of the receiving elements to perform adjustable, they can with oblong holes be provided in which the receiving elements are received longitudinally movable. The long holes can within the switch receptacle in the direction of movement of the signal plunger extend and have a mushroom-like approach, which has a diameter or a slot width, through which the receiving elements passable are. Will the switch receptacle relative to the receiving elements moved, these wander through the narrow range of slots, and the switch receptacle is captive by the receiving elements arranged or even fixed.

The Recording elements can screwed executed be so that the screws of the receiving elements during adjustment solved the switch recording and upon reaching the desired Be tightened position. Alternatively, the receiving elements spring-loaded clamping bodies include, so that the switch receptacle to be applied by a Force longitudinally movable can be moved. Here is the necessary force to shift the switch receptacle is larger than the operating force of the electric switch, allowing the switch holder without manual Engage their position through the receiving elements within the door drive does not change.

According to one another embodiment the electrical switch can also be actuated by a plunger, preferably end is arranged on the spring force accumulator. The spring energy storage extends along the direction of movement of the flap truck or the drawbar, facing away in the region of the free and the flap car End of the pull rod of the ram arranged is. If the door is operated, takes place a longitudinal movement the rod, so that this longitudinal movement in the ram end continued on the pole. Consequently, the axial corresponds Movement position of the plunger with the opening position of the Door leaf.

The Operative connection between the plunger and The electric switch may include a rocker element, which in a rocking axis is received pivotably in the door drive. The Rocker element has a first Betätigungsanformung by the plunger steerable is, wherein the rocking element further comprises a second Betätigungsanformung owns the trigger the electric switch is used. The rocking axis runs in one Angle and preferably transversely to the direction of movement of the plunger, wherein the two Betätigungsanformungen on one opposite each Side are introduced in the rocker element to both Betätigungsanformungen to be able to pivot around the rocking axis.

Of the electrical switch is by means of a switch receptacle in the door drive taken, with the switch receptacle with the electrical switch in the position relative to the rocker element is adjustable to the release of the electrical switch from the open position of the door leaf adjustable to perform. Will the door leaf open, so the closing spring compresses. Consequently, pulls the tab carriage, the rod a bit far from the closing spring out, leaving the pestle in the direction to the closer shaft and thus moved away from the electrical switch. This increases first the distance between the electrical switch and the plunger.

By the reversal of motion achieved by the rocking element follows the first Betätigungsanformung the movement of the plunger, being the opposite second Betätigungsanformung by the rotation about the rocking axis in the direction of the electrical Switch moves. To a logical movement of the rocking element to reach, a spring element is provided, which is the rocking element biased about the rocking axis such that the first Betätigungsanformung in the direction of plunger preferably so crowded will make her durable against the pestle comes to the plant. The spring element can be used as a double leg spring be formed and causes a sufficiently large bias around the rocker axis, that also the electric switch are actuated can.

Of the Door operator can have a locking device with the door leaf in an open position can be determined, wherein the locking device with the electric Switch be executed switchable can. The determination of the door leaf can be done for example in the range of the final strike, so that the electric switch then activates the locking device, if the door leaf has reached the final blow.

According to one further advantageous embodiment instructs the door operator one System carrier for Forming its basic structure, wherein at least the electrical Switch, the switch holder and / or the rocker element received in the system carrier could be. The electrical switch can also advantageously on the spring energy storage or be attached to the drive motor, the arrangement of the electric Switch only on a stationary element within the door drive must be done.

Further, the invention improving measures will be described below together with the description of a preferred embodiment of the invention with reference to the figures shown in more detail.

It demonstrate:

1a a perspective view of parts of a door operator according to an embodiment of the invention in the form of a door drive with an electric drive motor and a closing spring for actuating a closer shaft of the door drive,

1b another perspective view of the door drive of 1a .

2 a partial perspective view of a drive unit of the door drive of 1a with an electric drive motor and a spring energy storage,

3 a partial perspective view of the spring force memory of the door drive of 1a .

4 a detailed perspective view of the switch receptacle of the door drive of 1a .

5a the arrangement of the switch receptacle of 1a in relation to a system carrier of the door drive,

5b a sectional view taken along a line AA in 5a .

6 a detailed perspective view of the signal plunger for triggering the electrical switch of 1a .

7 another perspective partial view of the drive unit of the door drive of 1a .

8a a further embodiment of an arrangement of an electrical switch for triggering by a end arranged on the closing spring plunger,

8b the arrangement of 8a in a sectional view, with system carrier,

8c the arrangement of 8b in another view,

9 a schematic diagram of an interconnection of the switch of 1a , According to another embodiment of the invention and

10 a schematic diagram of an interconnection of the switch of 1a , again according to another embodiment of the invention.

In 1a is a perspective view of a door operator according to an embodiment of the invention in the form of a door drive 1 shown in parts. The door drive 1 is used to operate a door leaf of a connected, not shown door. The basic structure of the door drive 1 is exemplified by a in 1a for clarity reasons, not shown system carrier 17 of the door drive 1 formed, the modular way by further carrier components of the door drive 1 can be extended.

The operation of the door leaf by the door drive 1 via a closer shaft 2 coming out of the door drive 1 protrudes. The closer shaft 2 is driven in rotation by means of a drive unit.

The door drive 1 is present as an electric door drive 1 with an electric drive motor 4 executed. The closer shaft 2 is with the drive motor 4 via a gearbox 20 drivingly connected.

The drive unit further has an in 1 unspecified spring energy storage 18 with a closing spring 19 , This is about a flap car 5 with the closer shaft 2 coupled such that upon rotation of the closer shaft 2 a compression of the closing spring 19 can be effected. This is on the flap car 5 - In not further shown manner - mounted a pressure roller which rolls on a cam, the rotationally fixed to the closer shaft 2 is arranged. By one over the rotation angle of the closer shaft 2 variable radius of the cam will be a Linearbewe movement of the flap carriage 5 generated when the closer shaft 2 is rotated by opening or closing the door leaf. The linear movement of the flap truck 5 causes compression or decompression of the closing spring 19 so that the closing spring 19 is preferably compressed when opening the door leaf and without energization of the electric drive motor 4 can cause the closing movement of the door leaf.

At the flap car 5 is a signal plunger 6 mounted in preferably rigid arrangement, with an electrical switch 3 interacts with its operation. To the electric switch 3 within the door drive 1 is advantageously a switch receptacle 7 intended.

1b shows the door drive 1 from 1a , but with system carrier 17 and an unspecified control for the door drive 1 ,

The exact operative connection between the electrical switch 3 and the signal plunger 6 is shown in more detail in the following figure.

2 shows a perspective view of the drive unit of the door drive 1 with the electric drive motor 4 and the spring energy storage 18 in which the in 2 invisible closing spring 19 is recorded and with the flap car 5 linearly cooperates to the closer shaft 2 to set in rotation.

The signal plunger 6 preferably extends along the longitudinal axis of the spring force accumulator 18 and consequently along the direction of movement of the flap carriage 5 , which is indicated by a double arrow. The signal plunger 6 is preferably via a plunger receptacle 21 on the flap car 5 attached so that it performs the same linear motion as the flap car 5 , The signal plunger 6 preferably has an actuating lug 8th pointing in the direction of the electrical switch 3 has.

The electric switch 3 has a triggering element in the example shown 9 preferably spring-back over the switch 3 is arranged and thus forms a switching flag. Moves the signal plunger 6 along the double arrow shown in the example shown to the left in 2 , so overrun the actuating flag 8th of the signal plunger 6 at least partially the trigger element 9 of the electrical switch 3 , Due to an inclination of the trigger element 9 in relation to the movement path of the actuating lug 8th become the trigger element 9 down in 2 pressed and thus the electrical switch 3 actuated. So can the switch 3 provide an electrical signal. The operation of the electrical switch 3 thus takes place advantageously by means of depressing the trigger element 8th towards the switch 3 , The electric switch 3 is over the switch receptacle 7 preferably on the spring energy storage 18 or its housing added. The recording is done by way of example recording elements 10 in preferably oblong holes 15 inside the switch receptacle 7 are guided along. This can be the electrical switch 3 in its direction of movement, ie before preferably in the direction of movement of the flap carriage 5 , in its axial position with respect to the actuating lug 8th to be changed. The electric switch 3 is firmly in the switch receptacle 7 added.

The switch holder 7 advantageously has a Griffanformung 22 , so that the axial position of the switch receptacle 7 can be changed manually. Consequently, the electrical switch 3 in the direction of movement of the flap carriage 5 represented by the double arrow, are shifted in such a way that the triggering of the electrical switch 3 through the signal plunger 6 can be done at different adjustable positions with the respective rotational positions of the closer shaft 2 correspond. Since the respective rotational positions of the closer shaft 2 correspond with a respective door opening angle, it is possible to actuate the electric switch 3 by means of the actuating lug 8th to set to a desired door opening angle.

3 shows the for the signal plunger 6 relevant parts of the unspecified door drive 1 , The spring energy storage 18 flows into an in 3 right end, ie that of the closer shaft, not shown 2 facing end, by way of example in a flange plate 28 or is used in this. The flange plate 28 serves to fasten the spring force accumulator 18 preferably on a transmission housing of the door drive 1 , The signal plunger 6 is preferably in the flange plate 28 by means of a guide bush inserted into it 29 further preferably stored linearly stored recorded.

The guide bush 29 is advantageously designed so that the signal plunger 6 so far along her that dirt particles from the outside, ie from the left in 3 , not through the flange plate 28 through and thus can get into a transmission housing interior.

Particularly clear are the actuating lug 8th of the signal plunger and the oblique triggering element 9 of the switch 3 to recognize.

Furthermore, the receiving elements 10 shown at which the switch receptacle 7 over the oblong holes 15 on the spring force spoke 18 attached or at least longitudinally movably mounted is.

4 shows a perspective view of the switch receptacle only 7 from one regarding 3 opposite side, in which the slots 15 for receiving the receiving elements, not shown here 10 are introduced.

The long holes 15 preferably extend in the longitudinal direction of the switch receptacle 7 , preferably with the direction of movement of the flap carriage, also not shown 5 within the door drive 1 corresponds. The long holes 15 preferably end in a respective mushroom-like shape 23 , through which the not shown here recording elements 10 can first be passed through to the area of the slots 15 for example, to clamp. For this purpose, the receiving elements 10 have screw-head-like ends that can be passed through the mushroom-like formations, but due to the narrower design of the slots 15 against the surface of the sheet-like switch receptacle 7 nudge.

The attachment of the electrical switch, also not shown 3 done by means of mounting holes 24 through which the electrical switch 3 at the switch receptacle 7 can be screwed. On the opposite side of the thus formed mounting for the electrical switch 3 through the mounting holes 24 is the Griffanformung 22 , where the switch receptacle 7 is made in one piece by stamping and bending of a sheet metal component.

Additionally or alternatively to the oblong holes 15 has the switch receptacle 7 preferably a projection 30 on. The lead 30 internally preferably again has a slot 33 on. The slot 33 serves for the fixed attachment of the switch receptacle 7 on the door drive 1 , preferably on the system carrier 17 or on the housing of the spring force accumulator 18 ,

To connect the connecting cables of in 4 not shown electrical switch 3 to the also not shown control of the door drive 1 To be able to lay safely, are preferably through holes 31 intended. These serve to carry out conventional cable ties, by means of which the connection lines of the electrical switch 3 fixed and thus can be safely relocated.

5a shows the arrangement of switch receptacle 7 and exemplary system carrier 17 in a perspective view obliquely from the front right above with respect to the system carrier 17 , As you can see, the slot is aligned 33 the locking projection and a corresponding attachment opening 32 in the system tray 17 together. Further, the electric switch 3 to see suggestively.

5b shows the arrangement of 5a along a section line AA in 5a , The locking of the switch holder 7 on the system carrier 17 is preferably done by means of a locking screw 34 running from one side through the mounting hole 32 and the slot 33 stuck through and at the free end with a mother 35 screwed, as indicated by the dashed line.

The system carrier 17 is in 5a and 5b each shown from a top. The door drive 1 or its system carrier 17 is mounted with a bottom, for example, on a mounting plate, which in turn is attached, for example, to a lintel. Ie. the top of the system carrier 17 always points to the fitter. This has the consequence that in the embodiment shown both the locking screw 34 for screwing as well as the Griffanformung 22 for moving the switch holder 7 are accessible at all times, which is the setting of the switch receptacle 16 facilitated. This is the locking nut 35 preferably by means of terminals or the like in the system carrier 17 taken captive.

Alternatively, the locking screw 34 in the mounting hole 32 for example screwed in self-tapping.

6 shows a perspective view of the signal plunger 6 where the actuating flag 8th for triggering the trigger element 9 of the electrical switch, not shown here 3 is formed. At a first, not shown, closer shaft 2 of the door drive 1 facing end has the signal plunger 6 a recording end 25 , The receiving end is used to attach the signal plunger 6 on the tab truck, not shown here 5 ,

7 shows the connection of the signal plunger 6 Here is an example of the flap truck 5 from a different perspective. The signal plunger 6 is with his recording end 25 preferably in a correspondingly formed recording 21 of the flap truck 5 screwed, but can also be pressed, glued or attached in any other way. The attachment of the signal plunger 6 on the flap car 5 is preferably rigid, but can also be designed, for example, pivotable. In the case ensures the above-described guide bush, not shown here 29 the linear movement of the signal plunger 6 ,

A pressure roller 39 rolls on the surface of a corresponding Hubkurvenscheibe 40 of door drive 1 for example, essentially in the direction of signal plunger 6 pressed off. pressure tunnel 39 and cam disc 40 are in the flap car 5 freely rotatable recorded.

In 8a is another embodiment of an arrangement now an electrical switch 3 ' within the door drive 1 shown, for reasons of clarity without system carrier 17 , The electric switch 3 ' is via a switch receptacle 16 on the door drive 1 attached.

The switch holder 16 is in the door drive 1 preferably arranged variably along the double arrow shown.

The electric switch 3 ' is below the preferably sheet-shaped switch receptacle 16 mounted and has an actuating end, preferably in the form of a trigger element 9 ' such that upon a pressure on the operating end of the electrical switch 3 ' can be triggered.

At one the switch 3 ' facing end of the not visible here closing spring 19 is a pestle 11 appropriate. To form an operative connection between the plunger 11 and the electrical switch 3 ' is a rocking element 12 provided, that around a rocking axis 13 swiveling in the door drive 1 is included. The rocking axis 13 preferably runs transversely to the direction of movement of the non-visible flap carriage 5 and thus transverse to the compression direction of the closing spring 19 ,

The rocker element 12 has a first Betätigungsanformung 26 passing through the pestle 11 is steerable, and a second Betätigungsanformung 27 that trigger the electrical switch 3 ' serves. The actuating formations 26 . 27 are preferably ends of the rocker element 12 ,

Advantageously, the rocking element 12 from a spring element 14 exemplarily in the form of a double leg spring acted upon such that the spring element 14 the first Betätigungsanformung 26 against the pestle 11 pushes or towards pestle 11 urges.

The other spring end of the double leg spring is, as in 8b to recognize, at an inner, down in 8b facing surface preferably of the system carrier 17 supported. The at the system carrier 17 supported spring ends preferably have a distance to each other, so that between them, a gap is formed, in which the second Befestigungsanformung 27 is advantageously arranged and by a in 8b recognizable passage opening 36 in the system tray 17 freely swivels through.

During compression of the closing spring 19 the ram moves 11 in the longitudinal direction of the closing spring 19 , in the example shown by the switch 3 ' path. As a result, moves or pivots the first Betätigungsanformung 26 due to the action of the spring element 14 also from the electrical switch 3 ' path. As a result, the second Betätigungsanformung 27 towards the electrical switch 3 ' moved or pivoted and after a certain path of movement against the switch 3 ' or its trigger element 9 ' pressed and due to the action of the spring element 14 the desk 3 ' finally pressed.

So there is a reversal of movement of the plunger 11 with respect to the second Betätigungsanformung 27 reached; the first Betätigungsanformung 26 below the rocking axis 13 follows the movement of the pestle 11 , whereas the second Betätigungsanformung 27 moved in an opposite direction.

The spring element 14 is preferably provided, the rocking element 12 with the first Betätigungsanformung 26 permanently against the pestle 11 to bring to the plant, and preferably also extends around the rocking axis 13 around.

In 8b is the closing spring 19 to recognize.

The electric switch 3 ' is similar to the electrical switch 3 now at the switch holder 16 by means of fastening openings 24 ' appropriate.

To the operation of the switch 3 ' To be able to adjust to a desired opening position of a connected rotary wing is the switch receptacle 16 preferably with fastening means 37 provided for example in the form of screws.

As in particular in 8c shown, the screws are for this purpose in oblong holes 38 preferably of the system carrier 17 of the door drive 1 added. The long holes 38 preferably extend along the direction of movement of the plunger 11 , At the desired position, which corresponds due to the plunger assembly with an opening position of the connected door leaf, is the switch receptacle 16 or the switch attached thereto 3 ' by means of the fastening means 37 on the door drive 1 or its system carrier 17 locked.

9 shows a schematic diagram of an interconnection of the switch 3 according to another embodiment of the invention. Additional switching elements such as protective capacitors and the like are omitted for clarity.

In this embodiment, the drive motor 4 preferably be operated as a generator when closing a door leaf. So that the drive motor 4 If the movement of the door leaf is not blocked, the electrical energy generated by it must be dissipated.

This is done by way of example an adjustable electrical resistance R _1, preferably in the form of a potentiometer. The potentiometer offers the possibility of adapting the door drive to the respective conditions on site, for example to the door leaf weight.

The drive motor 4 is connected in series with a control element, for example in the form of an npn transistor T, with its collector and emitter terminals. The emitter terminal of the transistor T is further coupled to an input of a regulator Re. An output of the regulator Re is coupled to the base of the transistor T and thus controls the transistor T. Another output of the regulator Re is connected in series with the resistor R ₁ , which is connected with its other terminal to ground. Ie. the discharge of the drive motor 4 generated electrical energy is dissipated via the resistor R ₁ , which thus determines the resistance, the drive motor 4 due to its regenerative operation opposes its own movement and thus the movement of the door leaf; he thus determines the damping effect of the drive motor.

The resistor R ₁ is connected in series with essentially the switch 3 and another electrical resistor R ₂ , preferably in turn in the form of a potentiometer, connected in parallel.

Is the door leaf in the predetermined opening position, the switch 3 actuated.

Is the switch 3 , as in 9 shown, designed as normally open, it switches the electrical resistance R ₂ to. This reduces the total resistance of the voltage applied to the other output of the regulator Re total electrical resistance. This allows more of the drive motor 4 generated electrical energy or power dissipated who the, resulting in that the damping effect of the regeneratively driven drive motor 4 decreases.

This is useful, for example, for an end impact control, if it is to be ensured that the door drive 4 safely bring the door leaf into the closed position. A preferred solution is the driving force of the door operator 4 to increase shortly before reaching the closed position, for example at 7 ° opening angle of the door leaf. This is preferably done by the switch 3 when actuated, the resistor R _{2 is} switched on.

These solution allows the use of the door drive also for a fire door, in an emergency, d. H. in the absence of power supply, must close securely, for example, to prevent smoke in other rooms.

Is also the switch 3 ' connected as normally closed in a similar manner, as shown in the left part of the interconnection, the reverse effect is achieved. Ie. an actuation of the switch 3 ' leads to a disconnection of the electrical connection between now a third electrical resistance R ₃ and the controller Re and thus the drive motor 4 , This reduces the power that can be dissipated by the resistance circuit; the damping effect of the drive motor 4 increases. This can be used, for example, to reduce the closing speed of the door leaf, so that the risk of injury due to the falling door leaf can be reduced.

To set a door leaf in motion, its inertia must be overcome. Is due to the opener 3 ' the damping effect of the drive motor 4 reduced, the spring force accumulator can introduce more force in the door leaf and thus easier to start its movement.

The switches 3 . 3 ' each can also be formed vice versa, ie instead of normally open as an opener or vice versa.

The interconnection according to 9 is preferably formed such that the switch designed as a closer 3 is actuated when the door leaf occupies an opening angle smaller and / or equal to a predetermined first opening angle, preferably close to the closed position. The example designed as an opener switch 3 ' on the other hand, it is actuated when the door leaf occupies an opening angle greater than or equal to a predetermined second opening angle, preferably close to the opening position.

The controller Re is preferably designed as a constant voltage regulator, ie it controls the drive motor 4 voltage applied.

Instead of two resistors, the switches 3 . 3 ' also, as in 10 shown cooperate with a single resistor R _D. As a result, an equal damping effect is achieved at the beginning and at the end of the movement of the door leaf.

The resistors R ₁ , R ₂ , R ₃ , R _{D used} , of course, in each case also as unverän derbare electrical resistors may be formed.

Will the drive motor 4 also used when closing, the switches can 3 . 3 ' now be used to turn on or off the drive motor or zuzuschalten a respective electrical resistance or electrically separate from the drive motor.

The Restricted invention in their execution not to the preferred embodiment given above. Rather, a number of variants is conceivable, which of the solution shown at in principle different types Use. All from the claims, the description or drawings resulting features and / or Benefits, including constructive details, spatial arrangements and procedural steps as well as are essential to the invention as well as in the most diverse combinations be.

Advantageously, the electrical switches 3 . 3 ' identically formed.

Furthermore, it is possible both described switch assemblies on one and the same door drive 1 provide at the same time. This has the advantage that the switches 3 . 3 ' can be used to detect once the fully-open position and once the fully-closed position of the connected door leaf.

Alternatively, the switches 3 . 3 ' be operated redundantly, so that a switch 3 . 3 ' may fail without compromising operational safety.

The invention is of course also applicable to door operators, in which the pressure roller between the closing spring and cam is arranged. In that case, the pressure roll holder is formed for the electric switch 3 the signal ram 6 to record in a stationary manner. For the electric switch 3 ' This time a push rod is inserted into the closing spring, which is the rocking element 12 actuated.

In the case of a rack-based door operator is exemplified the above-described electrical switch 3 ' with the switch holder 16 again operatively connected to a push rod which passes through the closing spring and exits at a side facing away from the rack piston end of the closing spring, for example, sealingly from the housing of Türbetä tiger and applied to a rack piston end facing this and thus moved with. Push rod and rack piston are preferably fixed to each other fixed. The free end of the push rod is analogous to the plunger 11 with the switch 3 brought into operative connection, so that the same switch function can be achieved.

The switches 3 . 3 ' are also suitable for closing sequence controls. On a door-side door operator, one of the switches 3 . 3 ' be provided for triggering or releasing an exemplary electric locking device whose operation causes a blocking or releasing the passer-side door operator. The other switch 3 ' . 3 may be used to detect the full-open position of the passive leaf, for example, a drive motor 4 off.

Because the electrical switch 3 . 3 ' Preferably be operated mechanically, the switching function is guaranteed even in the event of power failure, which increases the reliability.

1

door drive

2

closer shaft

3, 3 '

electrical switch

4

electrical drive motor

5

movable Element, flap car

6

signal follower

7

switch bracket

8th

operation flag

9 9 '

triggering element

10

receiving element

11

tappet

12

rocker

13

rocking axis

14

spring element

15

Long hole

16

switch bracket

17

system support

18

Stored energy

19

closer spring

20

transmission

21

Ram receptacle

22

Griffanformung

23

fungus formation

24 24 '

mounting hole

25

receiving end

26

first Betätigungsanformung

27

second Betätigungsanformung

28

flange

29

guide bush

30

locking projection

31

Cable ties implementing

32

fastening opening

33

Long hole

34

locking screw

35

locking nut

36

Through opening

37

screw

38

Long hole

39

pressure roller

40

cam disc

R ₁

electrical resistance

R ₂

electrical resistance

R ₃

electrical resistance

R _D

electrical resistance

re

regulator

T

transistor

Claims (19)

Door operator ( 1 ), arranged to pivot a door leaf in at least one direction, with • a drive unit ( 4 . 5 . 18 ) and • a closer shaft ( 2 ) for actuating the door leaf, which via a mechanical operative connection with the drive unit ( 4 . 5 . 18 ) is driven by the drive unit in the at least one direction, wherein • the mechanical operative connection at least one element ( 5 ), which during the drive of the closer shaft ( 2 ) by the drive unit ( 4 . 5 . 18 ) performs a movement, and • an electrical switch ( 3 . 3 ' ) provided by the movable element ( 5 ) is mechanically actuated such that electrical information about an opening position of the rotary vane is provided, characterized in that • the movement of the at least one element ( 5 ) is a linear movement. Door operator ( 1 ) according to claim 1, characterized in that the drive unit ( 4 . 5 . 18 ) further comprises an electric drive motor ( 4 ) having. Door operator ( 1 ) according to claim 2, characterized in that the electrical switch ( 3 . 3 ' ) in such a way with the drive motor ( 4 ), that the electrical switch ( 3 . 3 ' ) when actuated the drive motor ( 4 ) Turns off at a predetermined opening position of the door leaf. Door operator ( 1 ) according to claim 2, characterized in that • the drive motor ( 4 ) is operated as a generator when driving the door leaf in the at least one direction, so that the drive motor ( 4 ) opposes the movement of the door leaf a predetermined resistance, and • the electrical switch ( 3 . 3 ' ) in such a way with the drive motor ( 4 ) is connected, that upon actuation of the electrical switch ( 3 . 3 ' ) the predetermined resistance of the drive motor is changed. Door operator ( 1 ) according to claim 4, characterized in that the electrical switch ( 3 . 3 ' ) in series between an electrical load resistor (R ₂ ) and the drive motor ( 4 ) is switched. Door operator ( 1 ) according to one of claims 3 to 5, characterized in that the actuation of the electrical switch ( 3 . 3 ' ) takes place in the final blow of the door leaf. Door operator ( 1 ) according to one of the preceding claims, characterized in that • the drive unit ( 4 . 5 . 18 ) Furthermore, a spring energy store ( 18 ) with a closing spring ( 19 ), which - with the closer shaft ( 2 ) is actively connected, - is stretched over an opening movement of the door leaf and - is relaxed by a closing movement of the door leaf, and • the mechanical operative connection between the closing spring ( 19 ) and the closer shaft ( 2 ) is switched. Door operator ( 1 ) according to claim 7, characterized in that the movable element ( 5 ) by means of a flap carriage ( 5 ) which is mechanically connected to a rod which extends through the closing spring ( 19 ) extends therethrough. Door operator ( 1 ) according to claim 8, characterized in that • a signal plunger ( 6 ) on the flap car ( 5 ) is arranged mitbewegbar with this, and • the electrical switch ( 3 ) via a switch receptacle ( 7 ) in or on the door operator ( 1 ) is arranged that the electrical switch ( 3 ) by the movement of the signal plunger ( 6 ) from the signal plunger ( 6 ) is pressed. Door operator ( 1 ) according to claim 9, characterized in that the signal plunger ( 6 ) an actuating flag ( 8th ) provided with a triggering element ( 9 ) of the electrical switch ( 3 ) cooperates to its actuation. Door operator ( 1 ) according to claim 9 or 10, characterized in that the switch receptacle ( 7 ) By means of recording elements ( 10 . 34 ) on a base body of the door drive ( 1 ) and / or on the spring accumulator ( 18 ) is stationary and • with the electrical switch ( 3 ) in the direction of a movement of the signal plunger ( 6 ) is adjustable, wherein a respective position of the electrical switch ( 3 ) with respect to the main body or the spring energy store ( 18 ) corresponds to an associated opening angle of the door leaf. Door operator ( 1 ) according to claim 11, characterized in that the switch receptacle ( 7 ) Oblong holes ( 15 . 33 ), in which the receiving elements ( 10 . 34 ) are taken longitudinally movable and • which are substantially in the direction of movement of the Signal tappet ( 6 ). Door operator ( 1 ) according to one of claims 8 to 12, characterized in that • the spring energy accumulator ( 18 ) along the direction of movement of the flap carriage ( 5 ) or the rod extends and • in the area of a free and the flap car ( 5 ) end of the rod is a pestle ( 11 ) arranged with an electrical switch ( 3 ' ) cooperates. Door operator ( 1 ) according to claim 13, characterized in that • the operative connection between the plunger ( 11 ) and the electrical switch ( 3 ' ) a rocking element ( 12 ), which in a rocking axis ( 13 ) pivotable in the door operator ( 1 ), • the rocker element ( 12 ) a first Betätigungsanformung ( 26 ) possessed by the plunger ( 11 ) is articulated, and • the rocker element ( 12 ) a second Betätigungsanformung ( 27 ), which for triggering the electrical switch ( 3 ' ) serves. Door operator ( 1 ) according to claim 14, characterized in that • the electrical switch ( 3 ' ) by means of a switch receptacle ( 16 ) in the door operator ( 1 ) and • the switch receptacle ( 16 ) with the electrical switch ( 3 ' ) in a position relative to the rocking element ( 12 ) is adjustable, wherein a respective position of the electrical switch ( 3 ' ) with respect to the rocker element ( 12 ) corresponds to an associated opening angle of the door leaf. Door operator ( 1 ) according to claim 14 or 15, characterized in that the rocking element ( 12 ) by means of a spring element ( 14 ) around the rocking axis ( 13 ) is biased such that the first Betätigungsanformung ( 26 ) in the direction of ram ( 11 ) is urged. Door operator ( 1 ) according to one of claims 14 to 16, characterized in that the switch receptacle ( 16 ) • on a system carrier ( 17 ) of the door drive ( 1 ) is stationary and • with the electrical switch ( 3 ' ) in the direction of movement of the plunger ( 11 ) is adjustable, wherein a respective position of the electrical switch ( 3 ' ) with respect to the rocker element ( 12 ) corresponds to an associated opening angle of the door leaf. Door operator ( 1 ) according to one of the preceding claims, characterized in that • the door operator ( 1 ) has a locking device, with which the door leaf is detectable in an open position, and • an actuation of the locking device by means of the electrical switch ( 3 . 3 ' ) is controlled. Door operator ( 1 ) according to one of the preceding claims, characterized in that • the door operator ( 1 ) a system carrier ( 17 ) to form its basic structure and • at least the electrical switch ( 3 . 3 ' ), the switch receptacle ( 7 . 16 ) and / or the rocker element ( 12 ) on the system carrier ( 17 ) is attached or are.