EP0963499B1 - Revolving door drive mechanism - Google Patents

Abstract

Pivot-hung door drive system with an electronic control system that contains at least one memory and one microprocessor, for an at least single-panel door, the door panel of which is driven by an electro-mechanical drive unit that acts in the opening and closing directions. The drive unit consists essentially of a drive motor with a transmission and a power transmission unit for the door connected to it, whereby the power transmission unit consists of a drive shaft which is connected with one end of an actuator lever and the pivot-hung door drive system is installed inside a door panel or inside a door frame or casing. The power transmission unit consists of a screw with a nut that partly surrounds it, which nut is positively and non-positively connected to a toothed rack, whereby the drive shaft is engaged with its gear teeth in the gear teeth of the toothed rack.

Description

The invention relates to a concealed swing door drive with an electronic Control or regulation, the at least one memory and one Microprocessor contains, for a door with at least one wing, the Door leaf of an electromechanical acting in the opening and closing direction Drive unit is driven, the drive unit essentially from a drive motor with an adjoining one Power transmission unit exists, and the power transmission unit one Has drive shaft connected to one end of an operating lever and the entire swing door drive within one door leaf or can be installed invisibly within a frame.

Automatic door drives have the purpose of inspecting doors facilitate. Their importance grows not only in public and commercial used real estate, e.g. Administrative institutions, hospitals, Retirement homes, but there are increasingly automatic door drives used especially for apartments suitable for the disabled. The door drives are always on the door leaf or above the Door frame (frame) installed.

DE 42 31 984 A discloses an electromechanical swing door drive, equipped with a data processing unit for optimal operation is. With the data processing unit is a motor control unit connected, which forwards its output signal to a geared motor. The opening process of such a revolving door is monitored by a sensor signal initiated and executed automatically by the drive. simultaneously when opening an energy storage with the necessary Energy supplied to subsequently such a door without electrical Bring energy back to the secure closed position. This is also in the event of a failure of the engine control unit in the de-energized state, a safe one Guaranteed closing of the connected wing.

DE 296 04 692 U1 is a device for actuating a window sash refer to. For this purpose, chain links are created within the wing embedded by a worm geared one Motors are moved.

In the German utility model 295 21 068 a drive for one Swing door described in escape and rescue routes. In doing so, a Actuator used that only moves the door sash in the opening direction and at the same time an energy store in the form of a spring element supplied with the necessary energy so that it subsequently of the opening process and the possible holding time the rotary wing back in place properly without additional energy Spends the closed position. Here is the entire drive unit installed invisibly above the swing door within the frame. We either drive the rotary wing directly with the drive axle the drive or via an actuating arm located within the profiles, the one with a slide, which can be moved in a slide rail is working together.

In addition, there is a device on the drive that allows it by applying a manual force beyond the closed position uncouple the rotary wing from the drive. It is about the device around a mechanical, force-transmitting only in one direction Clutch. The clutch consists of one on the drive axle non-positively and positively attached locking bolts and at least one locking mark contained therein. Within the locking mark is a bolt that is spring-loaded and with a infinitely adjustable power adjustment is provided. By adjusting the force it is possible to continuously adjust the release force.

Another version can also be that the upper cross member of the rotating wing with two interlocking hook-shaped holding arms is provided. The support arms interlock so that even in one direction, namely in the direction of the escape and rescue route, the rotary wing can be uncoupled from the drive is.

The problem with such door drives is that they are installed must already be taken into account when planning the building, otherwise the headroom is no longer given.

The object of the invention is an automatic drive for to create a revolving door that is very small and its appearance does not affect the architectural impression of a door, In addition, such a swing door drive should be inexpensive to manufacture be and work almost maintenance-free.

The object of the invention is achieved with the teaching of claim 1 solved. The subclaims represent a useful further development of the invention represents.

The concept of a swing door drive, which is compact, was also with the goal is to install this drive concealed, which means that the swing door drive is embedded within a door or frame becomes. This will make changes to the building, e.g. Ground or Wall lifting unnecessary. Door closers have become known e.g. the "DORMA ITS 96", which is concealed within doors or door frames to be built in. The torque is introduced into the door thereby by a lever that is supported in a slide rail. The Transmission behavior of the slide rail causes in connection with this Door closer, which has a cam disc, a falling opening moment. This can be done by executing the curve almost a completely free design of the torque curve become.

To create a simple, inexpensive swing door drive, is on a rack with teeth having a large module is used, which is suitable, corresponding torques on such Revolving doors occur to transmit. This interlocking is in one Rack, which has a square cross section and preferably is rotatably mounted between two plates. there the rack is driven by a drive axle that is the same corresponding Gearing and stored in the cover plates is geared connected. Due to the sliding movement of the rack stationary drive shaft rotates, which is due to the connected Lever, in conjunction with a slide, which is in a slide is slidably mounted, which causes the door to move. With the Rack is a spindle nut for a translational movement non-positively and positively connected. Inside the spindle nut is a Spindle, preferably a ball screw at one end, wherein the other end of the spindle is held in a bearing. The spindle is driven by a driver axis that emerges from a gearbox driven. The gearbox is connected to a drive motor. To recognize the position of the connected revolving door a displacement sensor on the revolving door drive, which is preferably an incremental encoder or can be a potentiometer. The is controlled Motor through a controller that contains a microprocessor and memory and implemented as a PLC control (self-programming control) can be controlled. The controller is controlled by a sensor signal, which, for example, by a transmitter located within the Sensor is located to a receiver that is within the controller and so that it is embedded within the door leaf. So that Swing door drive can work independently, it is preferably with a corresponding Battery pack or an accumulator equipped. In use of the idea according to the invention, however, it is also possible that the power supply to the control system via appropriate supply lines, which are realized by cables with the necessary energy becomes. In such a case, the connection between Sensor and control can be realized by cable, the sensor can also be a switch.

For the sake of completeness it should be said that such swing door drives in Connection with a slide rail, which is also covered either in the frame of the door above or if the swing door drive is located within the frame, the slide rail assembly within the Door leaf is placed, work. The connection between the drive axle and the slide in the slide is guided by a Lever arm accomplished.

If the control is activated by the sensor signal, it turns the spindle and thereby causes the rack to move, which in turn is a forced movement due to the coupling via the Lever which is displaceably mounted on the other side on the slide, causes. Due to the preset opening width of the door remains in the Angle of the drive are at the same time the door leaf is in this position held. This can be achieved, for example, in that a self-locking gear is used. However, it is also possible, with appropriate regulation of the control, however a higher energy consumption after the drive motor the door holds in the open position and after an adjustable Automatically brings time back to the closed position. Keeping the Door through the motor generates corresponding power losses that lead to a Can cause the engine to heat up. It is also possible to set a holding torque through an electromagnetic clutch or through to generate a brake.

To also manually open the door e.g. due to a shutdown of the drive To be able to operate is a corresponding coordination between the engine and gear necessary. This affects the friction torque of the engine against the door movement. However, the exact coordination of the Efficiency of the combination of pinion and ball screw enables even such a door to be operated manually without great effort to open.

The main task of the controller is the motor current or the motor voltage depending on the door position and the Request signal, e.g. of a sensor to regulate. The engine can can be short-circuited with the door closed, thus providing an additional one Closing moment available. If an opening signal is given, then the motor current is regulated along the motor torque characteristic. After reaching the specified maximum speed, the engine speed based on the data from the displacement sensor in connection with a Sequence program, which was opened by opening the door the first time Tutorial was determined, held constant up to a braking point. When the door is braked, the motor current is reduced Limit value than when accelerating. Running to close the door this process in reverse. When exceeding the permissible Motor current, e.g. due to an obstacle, the controller switch off the drive accordingly or the door in reverse position drive. The end positions of the door and the braking points of the Controls are also determined in the learning phase.

In order to handle the entire unit of the swing door operator well attached to a cover both the drive unit, in particular consisting of rack, spindle with nut, gear, motor and displacement sensors as well as the control and the power supply. With such an arrangement, i.e. all components of the swing door drive are in a row and are interchangeable modules a revolving door drive has been created that is invisible can be installed inside doors, frames etc. The The swing door drive has a maximum installation width of 35 mm.

Figur 1:

Teilschnitt durch eine Tür mit eingebautem Drehtürantrieb

Figur 2:

Drehtürantrieb in der Seitenansicht

Figur 3:

Drehtürantrieb in der Draufsicht

Figur 4:

Drehtürantrieb in der Seitenansicht mit Längs- und Teilschnitt

Figur 5:

Drehtürantrieb in der Draufsicht mit Teilschnitt durch die Deckplatte

Figur 6:

Zahnstange in der Vorderansicht

Figur 7:

Zahnstange in der Seitenansicht

Figur 8:

Zahnstange in der Draufsicht

Figur 9:

Antriebsachse in der Vorderansicht

Figur 10:

Antriebsachse in der Draufsicht

The invention is explained in more detail using a possible schematically illustrated embodiment. It shows:

Figure 1:

Partial section through a door with built-in swing door drive

Figure 2:

Swing door drive in side view

Figure 3:

Top view of the swing door drive

Figure 4:

Swing door drive in side view with longitudinal and partial section

Figure 5:

Revolving door drive in plan view with partial section through the cover plate

Figure 6:

Rack in front view

Figure 7:

Rack in side view

Figure 8:

Rack in top view

Figure 9:

Drive axle in the front view

Figure 10:

Drive axis in top view

FIG. 1 shows a revolving door drive which is located in a door 53 within a Recess 55 is installed. It is in the exemplary embodiment a wooden door. But it can also be the swing door drive due to its conceptually small dimensions within a frame of a profile door to be built in. It is also possible to use the swing door drive not, as shown in FIG. 1, to be installed inside a door 53, but in a frame or door frame above it, which are not shown in the exemplary embodiment. Furthermore, in the Embodiment does not show the striking of the door 53 on tapes, neither is the actuating arm, the one with the one above Slide the slide rail and its slide back and forth in it can and the connection between the swing door drive (door) and the fixed Part, namely the frame. The recess 55 is like this sized that a cover 49 is recessed within a recess is, with both the revolving door drive with the cover 49 its drive unit as well as a power supply 52 for control 51 and a possibly existing signal transmission in the form a receiver 54 is located. All components are in a row. The entire swing door drive is by means of the cover 49 and this penetrating screw connections 50 with the door 53 non-positively and positively connected.

Let us first turn to the mechanical part, namely the structure of the swing door drive in Figure 2. The swing door drive is is an electromechanical swing door drive that is powered by a drive motor 10, which is connected to a gear 9, the connected Door 53 is intended to move. The fact that the swing door drive is invisibly built into a door leaf or frame to the otherwise usually existing design of the swing door drive comprehensive housing can be dispensed with. The housing is there consequently from the construction elements that make up the drive unit is preferably produced. These are particular an upper cover plate 1 and a lower cover plate 24, the cover plate 1 in Figure 2 above and the cover plate 24 below. apart the cover plates 1 and 24 at one end by an end piece 4 and elsewhere by a bearing bracket 2. The end piece 4 is through Screw connections 20 between the cover plates 1 and 24 non-positively and positively clamped.

The bearing bracket 2 is on a bearing flange 3 on which the gear 9 is flanged to the drive motor 10 by screw connections 19, which both the bearing flange 3 and the bearing bracket 2 reach through, and in the cover plates 1, 24 via appropriate threads are screwed together. The device for translational movement the swing door drive consists essentially of one Rack 5, a spindle nut 7 and one within the spindle nut engaging spindle 8.

The rack 5 is arranged against rotation in such a way that within the cover plates 1 recesses 25 and 26 and in the Cover plate 24 recesses 34 and 35 are located in each one the rack 5 molded guide pin 27, 28 and 32, 33 in Longitudinal direction of the swing door drive is mounted (see in particular figures 3 and 4). A drive axle is in operative connection with the rack 5 22 is present, which protrudes at one end from the cover plate 1 and has an actuating cam 6, on which the aforementioned Connection, not shown, via the actuating arm for the Slide rail is articulated. The connection between the actuating arm and the actuating cam against securing by a screw connection to be screwed into a threaded bore 47 hedged.

The rack 5 thus slides in the region of the guide pins 27, 28 and 32, 33 of existing surfaces 40, 41, 42, 43 between the cover plates 1 and 24. The rack 5 is shown in particular in FIGS. 6, 7 and 8, which show the individual views of the rack 5, shown. There is a rack 5 in its central region Breakthrough 39, which has a toothing 23 on one side. Of further, the rack 5 is tapered in relation to the horizontal axis, namely through recesses 37 and 38. On one of the end walls of the Rack 5 is a spindle nut receptacle 44, which is designed in this way is that the spindle nut 7 is non-positively and positively connected here can be. This can be a thread 36, for example. It is however, it is also possible to remove the spindle nut 7 and the rack 5 to make one piece.

With the toothing 23 is a corresponding to the same module Teeth 56, which is located on the drive axis, in engagement. This show Figures 9 and 10. So that the drive shaft 22 also safely can be performed within the cover plates 1 and 24 are Bearing surfaces 45, 46 on the drive axle 22.

FIG. 4 shows a more detailed structure of the swing door drive, in which the swing door drive is shown in side view and in addition, a sectional view was selected in some areas is. Here in particular is the connection between the spindle nut 7 and the rack 5 visible, in which case a connection via the thread 36 on a projection formed on the spindle nut 7 29 was chosen. The spindle 8 engages within the spindle nut 7 one, which can preferably be a ball screw to reduce the friction losses to keep it as low as possible. The end of the spindle 8, which does not pass through the spindle nut 7 is in the bearing bracket 2 held with a bearing boss 13 within a spindle bearing 17. In the exemplary embodiment there is an external thread on the bearing shoulder 13, onto which a spindle lock 18 is screwed. This can also be done by other suitable means of securing. Between the bearing bracket 2 and the bearing flange 3 is still there to compensate, a bearing bracket 14. The bearing bracket 3 and the bearing bracket 14 are pervasive and within the Cover plates 1 and 24 engaging screw connections 19 held.

The connection of the gear is located within the bearing flange 3 9 via screw connections 21. The gear 9 has a driver axis 15 on that in the embodiment within the bearing approach 13, here e.g. over a square, is inserted and thus when the driving axis 15 rotates, the spindle 8 is also rotated becomes. Alternatively, any other non-positive and form-fitting one Detachable connection can be chosen, especially in the form a tongue and groove connection.

The drive axle 22, as can also be seen in FIG. 4, guided within the cover plates 1 and 24 via bearing 16. Doing so the bearing 16 within blind bores 30. With the actuating cam 6, the drive shaft 22 protrudes from the cover plate 1. By This type of construction ensures that the swing door drive used for left and right hinged DIN doors can be.

If the drive motor 10 is now controlled via the control 51 Sensor signals activated, because of the rotational movement of the motor axis The spindle 8 rotates via the connection via the gear 9 added. As a result, the spindle nut 7 and thus the rack 5 in the exemplary embodiments of FIGS. 1, 2, 4 and 5 pulled to the right, which means that the drive shaft 22, there it is stationary, rotates and thus an opening over the not shown Connection between door leaf 53 and frame guaranteed. simultaneously However, the angle of rotation of the door leaf 53 is also over a Position sensor 11 determined. This ensures that to everyone When the opening angle of the door 53 of the controller 51 is known. The controller 51 is thus capable of a certain opening width reduce their speed of rotation and the door 53 at one bring the predetermined opening angle to a standstill. So that Swing door drive can also work independently, as in the embodiment reproduced in Figure 1, a power supply 52 used which keeps the door in operation in the form of a battery. However, such a door should be placed at busy entrances would be, the performance of a battery would not be sufficient, and in this If it is possible, it is also possible to use appropriate cable feeds the power supply with the necessary drive energy for the control 51 and thus to supply the drive motor 10.

With wiring, the sensor can also be wired with what means that the receiver 54 can be omitted.

The damping of the connected door 53 is accomplished electrically. Because both the electromechanical drive and the power supply and control installed inside the door 53 or the frame no wall or floor openings are required for installation. Furthermore, the swing door drive is particularly suitable for retrofitting, since it can also be retrofitted in doors, including profile frame doors can be, this especially for the elderly, as well as through a sudden restriction of their mobility disabled people is an interesting alternative to new doors.

reference numeral

1

cover plate

2

bearing support

3

Lagerffansch

4

tail

5

rack

6

actuating cam

7

spindle nut

8th

spindle

9

transmission

10

drive motor

11

transducer

13

bearing projection

14

bearing support

15

driver axle

16

camp

17

spindle bearings

18

spindle safety

19

screw

20

screw

21

screw

22

drive axle

23

gearing

24

cover plate

25

recess

26

recess

27

spigot

28

spigot

29

Approach (spindle nut)

30

blind hole

32

spigot

33

spigot

34

recess

35

recess

36

thread

37

recess

38

recess

39

breakthrough

40

surfaces

41

surfaces

42

surfaces

43

surfaces

44

Spindle nut receptacle

45

storage areas

46

storage areas

47

threaded hole

48

thread

49

cover

50

fittings

51

control

52

power supply

53

door

54

receiver

55

recess

56

gearing

Claims (16)

1. Swing door operator having an electronic control, which includes at least a memory and a microprocessor, for a door having at least one leaf, the door leaf thereof being driven by means of an electromechanical drive unit, operating in the opening and in the closing direction, which substantially consists of a drive motor (10) with a gear (9) and connected thereto a power transmission unit for the linked door, the power transmission unit consisting of a spindle (8) having a spindle nut (7), which partially overlaps the spindle and is non-positively and positively connected with a toothed rack (5), and of a drive axle (22), the toothing (56) thereof engaging with a toothing (23) of the toothed rack (5), and the drive axle (22) being connected to one end of an actuation lever and the swing door operator being capable to be installed in a concealed manner within a door leaf, respectively within a door frame.
2. Swing door operator according to claim 1, characterized in that the toothed rack (5) is rotation resistingly arranged.
3. Swing door operator according to claim 2, characterized in that the rotation resistant security is achieved by means of guide pins (27, 28, 32, 33) respectively the engagement thereof into apertures (25, 26, 34, 35) provided in the plates (1, 24).
4. Swing door operator according to one or several of the previous claims, characterized in that the cover plates (1, 24) are spaced apart at the one end by means of an end member (4) and at the other end by means of a bearing support (2) and, positioned between the cover plates (1, 24) are the toothed rack (5), the spindle nut (7) having the one end of the spindle (8) located therein, and the spindle (8) is supported on the other end in the bearing support (2).
5. Swing door operator according to one or several of the previous claims, characterized in that a bearing flange (3), at which the drive motor (10) having a gear (9) and a displacement sensor (11) is attached, is non-positively and positively joined to the bearing support (2).
6. Swing door operator according to claim 1 and 4, characterized in that the gear (9) is not self-locking.
7. Swing door operator according to claim 5, characterized in that the displacement storage (11) is an incremental encoder.
8. Swing door operator according to claim 4, characterized in that the spindle (8) is a recirculating ball spindle.
9. Swing door operator according to claims 1, 4, 5, and 8, characterized in that the spindle (8) presents a reception for the driving axle (15) of the gear (9).
10. Swing door operator according to the previous claims, characterized in that the swing door operator has a maximum width of 35 mm.
11. Swing door operator according to claim 1, characterized in that the second end of the actuation lever is connected to a slide member, that is movable within the sliding rail along the sliding rail which is incorporated within the door, within the door frame, respectively.
12. Swing door operator according to claim 1, characterized in that the spindle nut (7) and the toothed rack (5) are made from one piece.
13. Swing door operator according to claim 1, characterized in that the control (51) presents a self-contained power supply (52).
14. Swing door operator according to claim 13, characterized in that the power supply (52) is a battery accumulator.
15. Swing door operator according to claim 1, characterized in that the control (51) includes a receiver (54).
16. Swing door operator according to claim 1, characterized in that the control (51) is a SPS-control.

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