EP0867588A2 - Door drive with switching device - Google Patents

Abstract

The turning door is opened and/or closed with the aid of an electric motor which acts on a door closing spring to allow the door to be opened by hand without the resistance of the spring. It has a switch (6) for actuating the motor is positioned near the door handle (13) and is activated when the door handle is used. Preferably the switch is mounted rigidly on the door or on the door handle or in the region of a striking plate or lock case and is activated by relative movement of the door handle in relation to the door. The switch may be a sensor, e.g. microswitch, reed switch, radio device etc.

Description

mit einem elektrischen Motor zum motorischen oder motorisch unterstützten Öffnen und/oder Schließen des Drehtürflügels, vorzugsweise Servotürschließer, welcher eine Schließerfeder zum selbsttätigen Schließen und einen elektrischen Motor zum Beaufschlagen der Schließerfeder, um den Drehtürflügel ohne oder mit reduziertem Öffnungswiderstand der Schließerfeder von Hand öffnen zu können, aufweist

und mit einer ein elektrisches Signal abgebenden Schaltvorrichtung zur Betätigung des elektrischen Motors, vorzugsweise einem Schalter zum Einschalten des elektrischen Motors.

The invention relates to a door drive for a swing door preferably in a building

with an electric motor for motorized or motor-assisted opening and / or closing of the swing door, preferably servo door closer, which has a closer spring for automatic closing and an electric motor for loading the closer spring in order to be able to open the swing door by hand without or with reduced opening resistance of the closer spring , having

and with a switching device emitting an electrical signal for actuating the electric motor, preferably a switch for switching on the electric motor.

Such a drive for a revolving door is e.g. B. known from DE-OS 32 02 966 C2. There is a so-called electro-hydraulic door closer described a compression spring as an energy store for closing the door and for motorized Opening has a hydraulic pump with an electric motor. The door is opened fully automatic by placing the piston hydraulically using the hydraulic pump Compression of the closer spring is moved, the closing process then takes place as with a conventional hydraulic door closer, purely mechanical under the action of the closer spring. The door drive and the opener drive are in a unit integrated in a housing. Such a drive is coupled with a motion detector in practice. When a person approaches the door control is triggered to open the door. Here it also opens when the person does not want to pass the door at all, but rather is only near the door.

Another rotary vane drive is described in DE 43 23 150 A1. In which Electro-hydraulic door closer shown is a so-called Servo door closer, which allows the door to be opened manually motor-assisted. To do this, the pressure of the hydraulic medium in the door closer the instantaneous restoring force of the closer spring during the opening process customized. The hydraulically damped door closers are also in this embodiment and the electro-hydraulic opener drive with electric motor and pump in one unit in a housing attached to the door leaf or door frame integrated. The hydraulic pump is switched on and off using an or several sensors, e.g. a motion detector, a switch on the door leaf or an encoder on the closer shaft. The switching process is carried out by a Person who wants to pass the door initiated, depending on the execution of the Sensors either automatically when approaching the person or by operating the switch.

DE 195 18 396 describes a door drive for a walk-in on both sides Swing door, with a motor for opening and closing the swing wing and with a sensor device monitoring both sides of the revolving door leaf for Activate the motor. For this purpose, the sensor device points on each side of the rotary wing a motion detector, the motion detector on the Side of the door leaf facing away from the motor is connected to the motor wirelessly by radio works. In a second embodiment, only on the engine side Door leaf arranged a motion detector, which determines the position of the door handle supervised. The embodiment is free of cable inlets in the door leaf and especially suitable for fire doors.

DE 296 03 917 U1 describes a monitoring device for a door or a window. The door leaf has one mounted in a handle fitting swiveling handle and a plug-in locking part connected to the handle to operate a lock latch. A first in the handle fitting Sensor device detects the actuation of the handle and then delivers first monitoring signal. A second sensor device is on the handle fitting arranged, which detects the open position of the door and then a second Monitoring signal delivers. Both monitoring signals serve as alarm signals for a surveillance center. The sensor device is a magnetic switch or a reed contact switch.

The object of the invention is to develop a door drive, which a special has simple and reliable switching device for the engine.

The object is achieved in that the switching device for Actuation of the electric motor in the area of a door handle on the revolving door leaf is arranged. The arrangement is such that the switching device from the Door handle is acted on depending on its operation. This is the Switching device either fixed wing or door handle fixed, the Operated by a relative movement of the door handle relative to the wing. A person who wants to go through the door and reaches for the door handle thus inevitably triggers a switching signal for the electric motor.

Preferred areas of application of the switching device are revolving door leaves with a Lock area, the door handle being arranged in the lock area and / or engages through this, and the door handle actuates the lock latch. The switching device has a microswitch, reed switch or the like, which is arranged so that when the door handle is actuated and deflected is triggered. It is an arrangement on the handle fitting in the vertical area Axis of rotation of the handle possible, as well as in the area of rotation of the door wing Lever handle to operate the lock latch.

Versions for doors without lock area and handle bar are also possible. Here, the door handle is partially elastic or partially movable on one with the Door leaf screwed base attached. When the door handle is touched this is deflected by the forces that occur, one at the Socket arranged microswitch or the like actuated.

In a further embodiment, electrically conductive areas can also be of this type be arranged so that when actuated and the associated Deflection of the door handle come into contact with each other. In particular can also parts of the door handle, e.g. Mounting base electrically conductive be executed.

Further details of the invention are set out in subclaims 2 to 25.

Figur 1

eine Frontansicht einer Drehtür mit einem Drehtürantrieb und einer Schaltvorrichtung;

Figur 2

eine Detaildarstellung der Türgriffe in Figur 1 beiderseits der Tür unter Weglassung des Türblattes;

Figur 3

eine Darstellung eines Türgriffes in Figur 2 im Querschnitt;

Figur 4

eine Darstellung eines alternativen Ausführungsbeispieles im Querschnitt;

Figur 5

eine Darstellung eines abgewandelten Ausführungsbeispieles im Querschnitt;

Figur 6

eine Frontansicht einer Drehtür gemäß Figur 1 mit einer Türklinke.

The invention is explained in more detail in the figures. It shows:

Figure 1

a front view of a revolving door with a revolving door drive and a switching device;

Figure 2

a detailed view of the door handles in Figure 1 on either side of the door with the door leaf omitted;

Figure 3

a representation of a door handle in Figure 2 in cross section;

Figure 4

a representation of an alternative embodiment in cross section;

Figure 5

a representation of a modified embodiment in cross section;

Figure 6

a front view of a revolving door according to Figure 1 with a door handle.

The exemplary embodiment in FIG. 1 shows a single-leaf revolving door in a building with an overhead door drive 3 of a conventional type. The door drive 3 is a hydraulic swing door drive 3 with which the door is opened with motor or motor support and is closed with hydraulic damping under the action of a closer spring. It is constructed as a hydraulically damped door closer with a closer spring, combined with an electro-hydraulic opener drive with electric motor and pump (not shown). The door closer and the opener drive are integrated in a structural unit in a housing 31 which is fastened on the door leaf 1 near the upper horizontal edge. The output shaft 32 of the swing door drive 3 is rotatably connected in a known manner to a slide arm 33. The slide arm 33 has at its free end a slide as a guide element which is guided in the slide rail 34 on the upper vertical spar of the stationary frame 2. The free end of the slide arm 33 engages the wing 1 outside the axis of rotation of the wing 1.

However, designs are also possible in which the door drive 3 on the frame 2 is mounted and the slide rail 34 on the door leaf 1. Furthermore, the power transmission linkage also designed as a scissor arm and with its free end in a fixed pivot bearing or be supported on the wing.

In the exemplary embodiment in FIG. 1, the door leaf 1 is on its left vertical Edge can be rotated via two door hinges on the left vertical spar of frame 2 articulated. The revolving door drive 3 is connected to an electrical supply and Control line 38 connected from the left side part 37 of the swing door drive 3 out to a supply connection 12 on the door frame 2 becomes. The door leaf 1 has a lock area 5 with a dashed line Lock latch 51 on. The lock latch 51 is actuated by Pushing or pulling on the door handle 13.

The control of the door drive 3 for opening the door is carried out according to the invention via a sensor arranged in the area of the handle 13, which is not connected to the sensor door control shown is connected. The door opens as a result of sensor activation first under the action of the motor and the pump, what hydraulic medium pumps into the circuit of the hydraulic door closer, causing the piston moved and the closer spring is tensioned. The subsequent closing process takes place solely by using the stored in the closer spring Energy. So-called servo operation can also be selected for the opening process be in which the door leaf 1 by the support of the engine opened by hand without or with reduced opening resistance of the closer spring can be.

FIG. 2 shows a detailed representation of the door handles 13 in FIG. 1 on both sides of the door leaf 1, but with the door leaf 1 itself omitted. The two handles 13 are designed as bow handles and are each mounted on the handle fitting 14 so as to be pivotable about a vertical axis. The pivoting direction of both handles 13 is opposite to each other. The handle 13 must be actuated in the opening direction of the door, ie pulling on one side of the door and pressing on the other side of the door. The two handle fittings 14 are connected via two screw connections 16 penetrating through the door leaf 1 and are thus fixed on the door leaf 1. The handle bar 17, which is mounted between two handle fittings 14 so as to be rotatable about a horizontal axis, is used to actuate the lock latch 51. The structure of the lock, not shown, can correspond to DE 43 17 564 C2 or be constructed like another conventional lock, as described in prospectus K87 5187 E from Fritz Fuss GmbH & Co is described.

The handle 13 shown in cross section in FIG. 3 corresponds to that from FIGS. 1 and 2. It serves as an operating handle for the lock latch 51 in the lock area 5 of the door leaf 1 and as a control element for the door drive 3 shown in FIG. 1. The plate-shaped handle fitting 14 is attached its upper and lower ends each have two horizontal legs 14b arranged at a short distance from one another and parallel to one another. Two square pins 13a are rotatably supported at the upper and lower ends of the handle fitting 14 about a vertical axis within the legs 14b, whereby they reach through the legs 14. The square pins 13a serve as a fastening option and as an axis of rotation for the door handle 13. The handle fitting 14 has a central recess for the passage of the lock cylinder.

Between the two horizontal legs 14b at the upper end of the bracket is a Gear 15 arranged, which a rotational movement of the bracket and the square pin 13a converts into a rotary movement of the push rod 17. The push rod 17 passes through the handle fitting 14 between the two legs 14b and is in connection with the transmission 15. A rotary movement of the push rod 17 leads in a known manner to a mechanical actuation of the Lock latch 51, whereupon the door can be opened. Between the two horizontal Legs 14b at the lower end of the handle fitting 14 is an abutment 18 rotatably connected to the square pin 13a. A leg spring supports on the one hand on this abutment 18 and on the other hand on the handle fitting 14 from. Upon actuation of the handle 13 and rotation of the square pin 13a the leg spring is tensioned. The one stored in the leg spring Energy is used to return the bow handle to its original position after it is operated Starting position to move back.

According to the invention, there is between the two in this embodiment horizontal legs 14b at the lower end of the fitting 14 a sensor arrangement, which with mechanical actuation of the bow handle 13 and thus associated unlocking of the lock latch 51 at the same time the door drive 3 for motor or motor-assisted opening of the door. With the sensor arrangement it is preferably a microswitch 6, which between the two legs 14b is arranged and its switching contact 61 in the path of movement of a switching flag 62 protrudes. The switching flag 62 is on the Abutment 18 arranged radially facing outwards. When the Bow handle and the associated rotational movement of square pin 13a and Abutment 18, the switching flag 62 meets the switching contact 61 of the microswitch 6 and triggers an electrical signal. The one required to trigger the signal Switching path can be adjusted by positioning the microswitch 6 and the switching flag 62 regulate. The switching signal is sent to the door operator 3 fed, which then supported the motor for motor or motor Opening the door turns on. The transmission of the switching signal can both via a cable feed within the door leaf 1 and via radio respectively. The switching device according to the invention is also for use in FR doors as well as RWS doors.

FIG. 4 shows an alternative exemplary embodiment of a door handle 13 for generating a control signal for the electrical control of a swing door drive 3. In contrast to the previous embodiment, the door handle 13 is not used here to actuate a lock latch 51. A base 4 is provided with a screw connection 16 on the door leaf 1 attached, wherein the diameter of the base 4 is smaller than the inner diameter of the tubular handle 13. The base 4 in turn carries an attachment 43 on which the tubular handle 13 is mounted. For this purpose, the handle 13 is pushed onto the attachment 43 from the front and fixed there with a cylindrical pin 44 which extends through the handle 13. Between base 4 and attachment 43 there is an elastic body or also a spring element, which on the one hand firmly connects base 4 and attachment 43 to one another, but nevertheless allows a certain mobility of base 4 and attachment 43 to one another.

On the outside of the base 4, two microswitches 6 are arranged or integrated. When installed, the end of the door facing the door is located Handle 13 at a short distance from both the door and the switch contacts 61 the microswitch 6. When the handle 13 is touched by a person who Wants to pass through the door, the forces that occur cause a corresponding deformation of the elastic intermediate piece. Depending on the direction of deformation thereby the free end of the handle 13 in contact with one of the two microswitches 6, whereupon a control signal is passed to the door drive 3. Analogous to that previous embodiment, the door is then opened by a motor or the manual opening process in servo mode is supported.

Such an embodiment without mechanical transmission elements is also suitable for electrical actuation in parallel with the control of the motor the lock latch 51 to effect. In principle, the signal of the microswitch 6 can be used for any purpose.

In the similarly constructed exemplary embodiment in FIG. 5 , the microswitch 6 is not actuated by a pivoting movement of the handle 13, but by pressing the handle 13 in the direction of the door leaf 1. In this embodiment there is also a base 4 on the door leaf 1 by means of a screw connection 16 attached. In contrast, the attachment 43 encompasses the base 4 and is guided on it in an axially displaceable manner. Between the base 4 and the top 43 there is a plate spring 45 or compression spring or else an elastic body as in the previous embodiment.

A guide pin 46 is anchored at one end 46a in the attachment 43 and with its other end 46b through a bore inside the base 4 guided. A widened base-side end 46b of the guide pin 46 is prevented sliding out of the hole. At the same time, it will cause the Attachment 43 prevented from the base 4. In the base 4 is below the widened End a microswitch 6 arranged. When pressing the door handle 13 the guide pin 46 is pressed against the switch contact 61 of the microswitch 6. This in turn controls the door drive 3 as already described.

FIG. 6 finally shows a revolving door according to FIG. 1 with a conventional door handle instead of a pivotable bow-shaped handle 13 for actuating the lock latch 51 and for controlling the motor. The invention is independent of the design of the door handle 13. It can be bow handles or even conventional handles. The handles 13 can be tubular or plate-shaped. The handles 13 can be designed to be pivotable, rotatable or pullable or pushable perpendicular to the wing plane.

The use of the device according to the invention is not shown Embodiments limited. Instead of a microswitch 6, a Reed switch or any other type of switching contact 61 can be used. Around The base part connected to the door can also reduce the size further and the attachment 43 connected to the handle 13 is made electrically conductive be. When touched, an electrical signal is generated, which is used to control the drive.

In other compared to the embodiments shown in the figures modified embodiments, the signal transmission from the door handle 13 to drive 3 wirelessly via a transmitter and a receiver. The transmitter is fixed in the wing 1, preferably in the region of the door handle 13 or in the door handle 13 itself. In an alternative embodiment, the arrangement of the transmitter also take place in the frame 2.

The receiver is preferably in the area of the drive 3, preferably in the or arranged on the drive housing 31.

The energy supply of the transmitter and / or the receiver can be done by a or several accumulators. The accumulator to supply the transmitter is fixed in the wing 1, preferably fixed in the door handle 13, wherein this accumulator in the area of the transmitter as a structural unit with the transmitter can be arranged.

In all of the exemplary embodiments, the control signal can be a pulse, preferably one-time pulse, or also be designed as a permanent signal.

The drive can be switched on for as long as the control signal is present, i.e. when you release the door handle or the like, the process of motor or motor-assisted opening and / or closing of the revolving door leaf interrupted or subsequently only the closing process up to the closed position motor or motor assisted or carried out automatically via closer spring. Alternatively, however, it can also be provided that the process of the motor or motor-assisted opening and / or closing of the revolving door leaf is triggered by the control signal, preferably by a pulse, and the door leaf then motorized an entire opening / closing movement or executes automatically.

List of reference numbers

1

Door leaf, door leaf

11

Hinge

12th

Supply connection

13

Door handle, handle

13a

Square pin

14

Handle fitting

14a

Recess

14b

horizontal leg

15

transmission

16

Screw connection

17th

Pusher rod

18th

Abutment

19th

Return spring

2nd

Frame, door frame

3rd

Door operator

31

casing

32

Output shaft

33

Sliding arm

34

Slide rail

36

Cover

37

Side panel

38

Control line

4th

base

41

Screw fastening

42

Elastic body

43

Essay

44

Dowel pin

45

Belleville spring

46

Guide pin

46a

screwed end

46b

widened end

5

Lock area

51

Lock latch

6

Microswitch

61

Switch contact

62

Switch flag

Claims (26)

Door drive for a swing door preferably in a building with an electric motor for motorized or motor-assisted opening and / or closing of the swing door, preferably servo door closer, which has a closer spring for automatic closing and an electric motor for loading the closer spring in order to be able to open the swing door by hand without or with reduced opening resistance of the closer spring , having and with a switching device emitting an electrical signal for actuating the electric motor, preferably a switch for switching on the electric motor,
characterized, that the switching device (6) for actuating the electric motor is arranged in the region of a door handle (13) on the revolving door leaf (1), the switching device (6) being arranged such that it is acted upon by the door handle (13) as a function of its actuation becomes. Device according to claim 1, characterized in that the switching device (6) on the door leaf (1) fixed or on the door handle (13) fixed or in the area of a fixed tipping frame arranged striking plate or lock case and the actuation of the switching device (6) by a relative movement of the door handle (13) opposite the door leaf (1). Device according to claim 1 or 2, characterized in that that the switching device (6) has a sensor, for example a microswitch, reed switch, radio device or the like. Device according to one of claims 1 to 3, characterized in that that the switching device has electrically conductive areas which generate a control signal upon mutual contact depending on the actuation of the door handle (13). Device according to one of claims 1 to 4, characterized in that that the revolving door leaf (1) has a lock area (5) with a lock latch and the door handle (13) is arranged in the lock area (5) and / or extends through, the door handle (13) the lock latch (51) arranged on the door wing (1) operated. Device according to claim 5, characterized in that the lock area (5) has a handle bar (17) which extends through the lock area (5) and the switching device (6) is arranged in the rotating area of the handle bar (17) in such a way that it interacts with the handle bar (17) for the switching process. Device according to claim 5, characterized in that the door handle (13) has a wing-fixed fitting part (14), for example bearing, guide, rosette or the like, and the switching device (6) on the wing-fixed fitting part (14) in the region of an axis of movement of the door handle (13), for example rotating or Swivel axis is arranged such that it interacts directly or indirectly with the door handle (13) for the switching process. Device according to one of the preceding claims, characterized in that that the switching device (6) is arranged on the door leaf (1) or a part (4) connected to the door leaf (1) and interacts directly with the door handle (13) for the switching process, or vice versa. Device according to one of the preceding claims, characterized in that that the switching device (6) is arranged inside the door handle (13), the door handle (13) preferably being tubular. Device according to one of claims 8 or 9, characterized in that that an intermediate member is arranged between the door leaf (1) or the part (4) connected to it and the door handle (13), which enables and / or limits a relative movement between the door handle (13) and door leaf (1). Apparatus according to claim 10, characterized in that the intermediate member is a flexible elastic body (42), for example rubber or elastomer, or a spring, for example compression or disc spring (45). Device according to one of the preceding claims, characterized in that the door handle (13) is designed to be pushable, pullable, rotatable or pivotable. Device according to claim 12, characterized in that the switching path and / or switching point of the switching device (6) is adjustable. Device according to one of the preceding claims, characterized in that that the electric motor is arranged on the fixed door frame (2) above the leaf (1) or on the door leaf, the motor with its output member, preferably its output shaft (32) with the leaf (1) or the fixed door frame (2) a force-transmitting linkage (33) is connected, the free end of which engages on the wing (1) or on the stationary door frame (2) outside the axis of rotation of the wing (1). Device according to one of the preceding claims, characterized in that that the switching device is connected to the motor via an electrical cable and / or a sliding contact and / or via radio. Device according to one of the preceding claims, characterized in that the switching device or a transmitter, preferably radio transmitter or the like. has or is connected to such a transmitter or cooperates and that a receiver, preferably radio receiver, is provided which is preferably connected or cooperates with the engine or a control device of the engine. Device according to claim 16, characterized in that that the transmitter is fixed in the wing or fixed in the door frame, for example in the area of the lock case or striking plate. Device according to claim 16 or 17, characterized in that that the transmitter is fixed in the region of the door handle, preferably in the door handle. Device according to one of claims 16 to 18, characterized in that that the receiver is arranged in the drive or in the immediate vicinity of the drive. Device according to one of claims 16 to 19, characterized in that that the transmitter and / or the receiver are supplied with energy by one or more accumulators. Device according to claim 20, characterized in that the accumulator for supplying the transmitter is fixed in the frame or fixed in the wing or fixed in the door handle. Device according to one of claims 20 or 21, characterized in that that the accumulator for supplying the transmitter is arranged in the area of the transmitter, preferably as a structural unit with the transmitter. Device according to one of the preceding claims, characterized in that that the signal for control is designed as a pulse. Device according to one of the preceding claims, characterized in that that the signal for control is designed as a permanent signal. Device according to one of the preceding claims, characterized in that that the motor for motorized or motor-assisted opening and / or closing of the door leaf is only switched on as long as the signal for activation is present. Device according to one of the preceding claims, characterized in that that the motor for motorized or motor-assisted opening and / or closing of the door leaf is switched on via a pulse, preferably a signal for activation, and remains switched on until the door leaf has carried out an entire opening / closing movement.

Images