EP1870552A2 - Device for regulating the closing sequence for swinging doors with two wings - Google Patents

Abstract

An opening in a building is fitted with a pair of hinged doors [1,2] and each of these is operated by an electrical drive [3,4]. Each drive unit has an electrical motor and a gear transmission. The output shafts [10] connect with the doors using a lever and a guide system [13].

Description

The invention relates to a device for closing sequence control for double-leaf hinged doors according to the preamble of claim 1.

From the DE 195 32 262 A1 is a device for closing sequence control for two-leaf doors with a destroying inactive leaf and a sweeping leaf known, each cooperating with fixed mounted drives, each drive having an output shaft which cooperates with an electric motor for opening and a closer unit with closing spring for closing. The active leaf is operatively connected to a blocking device, which is controllable in dependence on the position of the passive leaf, by a transmission member is provided, which cooperates with its one end to the blocking device and with its other end with an actuated by the inactive leaf or a connected part actuator , which is arranged in the region of the housing of the passive leaf drive. The blocking device acts on the motor shaft of the moving leaf drive, which is in operative connection with the output shaft of the moving leaf drive.

This arrangement is elaborate allows only one type of mounting, the drive motors are facing each other.

From the DE 101 07 461 A1 is a closing sequence controller for a self-closing, a standing and a gangway door comprehensive, the active leaf is detectable by means of a releasable from the passive leaf locking mechanism. In this case, the axis of rotation of the inactive leaf is provided with a cam disc, which is in operative connection via an actuating element with a brake acting on the axis of rotation of the active leaf. It is provided in the brake area formed by an overload spring overload protection. The brake is designed as a two-part shoe brake, which surrounds a provided on the axis of the active leaf freewheel.

The closing sequence control interacts with the rotary axes of the door leaves and can not be used in conjunction with automatic door drives.

The invention has for its object to provide a universally arranged closing sequence control.

The object is solved by the features of claim 1.

The subclaims form advantageous embodiments of the invention.

Closing sequence controls are required for double-leaf revolving doors when the door leaves are provided with a door rebate, with the fixed leaf with its door rebate forms the stop for the active leaf. Since the two leaves overlap in the central region, the passive leaf must always be closed first before the active leaf closes completely, since otherwise the passive leaf abuts the overlap of the active leaf and the door remains partially open, which is inadmissible especially in the case of smoke and fire doors is. Therefore, the closing sequence control has a controlled by the fixed wing locking device, which detects the active leaf in an at least partially open position with open wing, and thus allows closing of the inactive leaf in front of the active leaf.

The device according to the invention for closing sequence control ensures that on a double-leaf, having a moving leaf and a passive leaf door equipped with door drives the undercutting passive leaf logically closes in front of the sweeping active leaf. For this purpose, the active leaf is held by a locking device in a partially open position with the inactive leaf open, wherein the locking device cooperates with an actuatable by the inactive leaf triggering device.

The door drives are arranged above the door leaf and are operatively connected via rods or slide arms, which engage with sliders in a wing fixedly arranged slide, with the respective door.

It is possible to mount the door drives on the hinge side, ie on the side of the doors on which the door wings are pivotally received in door hinges or door hinges, or on the corresponding opposite side of the doors, the hinge opposite side.

The door drives are designed for motorized opening and have for actuating in the closing direction on a spring arrangement. In this case, a controlled electric motor and the spring arrangement acts on a gear, which cooperates with the sliding arm or linkage for wing actuation. The door drive for the active leaf and for the fixed leaf are constructed essentially identically. For closing sequence control, the gangway-side door drive in addition to a brake as a locking device, which is arranged on the motor shaft. The door leaf-side door drive additionally has a triggering element, which actuates the gangway-side brake via a transmission element arranged between the door drives.

The motor shaft of the gangway side door drive is extended into a brake housing. On this extension of the motor shaft, a freewheel is rotatably mounted on which a brake drum is fixed. The freewheel allows opening of the active leaf when the brake is locked. The brake drum is surrounded by a brake pad which does not completely surround the brake drum. The brake pad has a directed towards the brake drum bias, which can also be reinforced by one or more springs, since such friction pads usually do not have high elasticity for a sufficiently large bias.

The free area of the annular brake pad allows the engagement of a spreading element, which is designed in the manner of an eccentric. A rotation of the expansion element causes a release of the brake by the brake pad is lifted from the brake drum.

The rotatably mounted in the brake housing expansion element is substantially cylindrical and has in the area which is arranged between the brake pad, a non-circular contour, whereby the brake pad is pressed apart depending on the angular position of the expansion element.

The rotation of the expansion element is effected by the stand-wing-side trigger, which is connected by a transmission element, such as a cable or a belt, with the expansion element. For this purpose, a lever or a cam can be arranged to force transmission on the expansion element, which acts on the transmission element.

The release element arranged in the gearbox of the door leaf-side door drive is rotatably mounted on the output shaft and cooperates with a winding disk which is arranged non-rotatably on the output shaft. On the winding disk a rope or band is wound up when opening the door leaf, which tensions a closing spring supported in the spring arrangement. By arranged on the winding disc driver, the trigger element is pivoted in the closed position of the door so that the gangway side brake is released, and closing the active leaf by the closing spring of the gangway side door drive is possible. If the inactive leaf is opened by the door drive, then the trigger element is released, and arranged on the transition wing brake brake spool rotates by the restoring force of the brake pad and possibly also acting on these springs so that the brake pad comes into contact with the brake drum and the Motor shaft in the closing direction notes. The trigger element is operatively connected by the transmission element, such as a cable, with the expansion element for actuating the brake. In order to enable easy operation of the brake even with the different types of installation of the door drives, the transmission element can be set optionally on two opposite projections on the trigger element, which is carried out without changing the drives, the logical operation of the brake.

As already described above, opening of the active leaf is possible even when the brake is detected by the arranged on the motor shaft freewheel. Damage to the door system through improper manual operation of the detected active leaf is avoided by the brake is designed so that in case of overload, the brake pad can slip on the brake drum.

In the following, exemplary embodiments are explained in more detail in the drawing with reference to FIGS.

Fig. 1

Eine Ansicht einer zweiflügeligen Tür mit angeordneten Türantrieben;

Fig. 2

eine Ansicht des gangflügelseitigen Türantriebs nach Fig. 1 mit abgenommener Abdeckung;

Fig. 3

eine Seitenansicht der Einheit Antriebsmotor, Getriebe und Bremse des Türantriebs nach Fig. 2;

Fig. 4

eine Draufsicht auf den standflügelseitigen Türantrieb mit abgenommener Getriebeabdeckung;

Fig. 5

ein Schnitt durch ein Ausführungsbeispiel einer Bremse nach Fig. 3;

Fig. 6

eine Draufsicht auf die Bremse nach Fig. 5 mit abgenommenem Deckel;

Fig. 7

eine Draufsicht auf ein weiteres Ausführungsbeispiel einer Bremse nach Fig. 5 mit abgenommenem Deckel;

Fig. 8

eine Seitenansicht des standflügelseitigen Türantriebs nach Fig. 4, mit geschnittenem Getriebe für eine Montage auf der Bandgegenseite;

Fig. 9

eine Seitenansicht des standflügelseitigen Türantriebs nach Fig. 4, mit geschnittenem Getriebe für eine Montage auf der Bandseite;

Fig. 10

eine Ansicht auf eine Kontur des Spreizelements;

Fig. 11

eine Ansicht auf eine weitere Ausführung einer Kontur;

Fig. 12

ein Draufsicht auf eine Kurvenscheibe am Spreizelement zur Anlenkung des Übertragungselements.

Showing:

Fig. 1

A view of a two-leaf door with arranged door drives;

Fig. 2

a view of the gangway side door drive of Figure 1 with the cover removed.

Fig. 3

a side view of the unit drive motor, transmission and brake of the door drive of FIG. 2;

Fig. 4

a plan view of the low-wing door drive with removed gear cover;

Fig. 5

a section through an embodiment of a brake according to Fig. 3;

Fig. 6

a top view of the brake of Figure 5 with the cover removed.

Fig. 7

a plan view of another embodiment of a brake according to Figure 5 with the cover removed.

Fig. 8

a side view of the door-side door drive of Figure 4, with cut gear for mounting on the opposite side of the tape.

Fig. 9

a side view of the door-side door drive of Figure 4, with cut gear for mounting on the hinge side.

Fig. 10

a view of a contour of the expansion element;

Fig. 11

a view of another embodiment of a contour;

Fig. 12

a plan view of a cam on the expansion element for articulation of the transmission element.

Above the door leaves 1, 2 is in each case a door drive 3, 4 is arranged, which in each case a non-rotatably connected to an output shaft 10, 10 'sliding arm 13, 13 for transmitting power ' having. On the respective sliding arm 13, 13 ', a slider is arranged rotatably on the end facing away from the door drive 3, 4, which is guided in a guide rail 14, 14' fixed to the wing. Alternatively, instead of a sliding arm 13, 13 'and a linkage of two pivotally interconnected lever arms on the output shaft 10, 10' may be arranged, wherein the linkage at the other end on the respective door 1, 2 is rotatably fixed.

The door drives 3, 4 can be arranged on the hinge side, the side on which the door hinges are arranged, or on the opposite side, the so-called hinge opposite side. When mounted on the hinge opposite side, the door drives 3, 4 associated sliding arms 13, 13 'engage under the Türumrahmung. In order to use the correct direction of rotation of the output shaft 10, 10 'required for the door opening, the door drive 3, 4 is mounted rotated by 180 ° depending on the mounting on the belt or hinge side. The output shaft 10, 10 'is accessible on both sides of the transmission 8 for mounting the sliding arm 13 or the linkage. When mounting the door drives 3, 4 on the hinge side, the drive motors 6 to each other, while these point at a mounting on the hinge opposite side of each other.

FIG. 2 shows the components of the essentially identical door drives 3, 4 in a schematic diagram on the basis of the door leaf-side door drive 3. In a housing 5, a drive motor 6 is connected to a not shown in the figure motor shaft 7 with a gear 8. The gear 8 cooperates with a spring arrangement 9, which serves as an energy store and a closing of the door 1 or 2 causes. In this case, a closing spring is arranged in a receiving space, wherein the closing spring is tensioned when opening the door leaf 1 or 2. In the transmission 8, the output shaft 10 is arranged. Furthermore, a control unit 11 for controlling the door drive 3 or 4 is provided.

FIG. 4 shows a plan view of the door leaf-side door drive 4, with the transmission being open. On the motor shaft 7 of the drive motor 6, a worm is rotatably mounted, which forms a gear reducer 8 with an arrangement of gears. In this case, a transmission shaft is guided to the outside and forms the output shaft 10 ', at the shaft end of the sliding arm 13' is fixed. Furthermore, a winding disk 15 is rotatably disposed in the transmission 8 on the output shaft 10, on which a flat belt 16, a band or another flexible element arranged in a loop and fixed end. The flat belt 16 cooperates with a arranged in the spring assembly 9 spring to the tension and relaxation together.

The motor shaft 7 is also led out on the gear side facing away from the motor housing to a rotary encoder 33 to the controller 11 of the drive motor 6 of the respective door drive 3 and 4 to arrange, as shown in Fig. 3. During start-up, a learning run is carried out during which the closed and open positions of the door leaves 1, 2 are detected. The controller 11 detects the position of the door leaf 1, 2 and thus can detect possible obstacles in the pivoting range of the door leaf 1, 2 during operation. This would also be an electrical control of the closing sequence of the door 1, 2 in principle conceivable, however, a closing sequence control on smoke and fire doors must continue to function reliably even in case of power failure and this function will then be additionally hedged.

FIGS. 8 and 9 show the arrangement of the components using the example of the door leaf-side door drive 4. If the drive motor 6 is energized to open the door leaf 1, 2, this causes a rotation of the output shaft 10, 10 'via the gear 8. About the force-transmitting slide arm 13, 13 ', the rotational movement of the Output shaft 10, 10 'so implemented in an opening movement of the door leaf 1, 2. The rotational movement of the output shaft 10 causes by the rotationally fixed arrangement and a same direction of rotation of the winding disk 15, whereby the flat belt 16 is wound and pulled out of the spring assembly 9, whereby the closing spring is tensioned.

If the energization of the drive motor 6 is canceled to close the door leaves 1, 2, the relaxing closing spring effects a turning back of the winding disk 15 and thus the output shaft 10, 10 '. The guided in the slide rail 14, 14 'sliding arm 13, 13' sets this rotational movement of the output shaft 10, 10 'in a closing movement of the door 1, 2 to. The drive motor 6 can in this case be operated by the controller 11 as a generator to decelerate the closing operation.

As shown in FIGS. 5 to 7, a brake 17 is additionally arranged for the mechanical closing sequence control on the door leaf-side door drive 3, which cooperates via a transmission element 18 with a release element 19 arranged in the gear 8 of the door leaf-side door drive 4, whereby when the inactive leaf 2 is open Active leaf 1 is detected in the closing direction.

The brake 17 is arranged on the gear side remote from the motor housing of the drive motor 6 of the door drive 3 in a brake housing 20 which is fixed to the motor housing. The rotary encoder 33 is in this case accommodated in a cover closing the brake housing 20, and interacts with a magnet 34 arranged on the motor shaft 7 for controlling the door drive 3. The guided out of the motor housing motor shaft 7 is guided through a recess in the brake housing 20. On the motor shaft 7, a freewheel 21 is fixed within the brake housing 20, on which a brake drum 22 is arranged rotationally fixed. The freewheel 21 causes a further opening of the active leaf 1 is possible with the inactive leaf 2 and thus a detected brake 17. The brake drum may be cup-shaped in order to reduce the mass and to reduce imbalances.

Around the brake drum 22 around a brake pad 23 is arranged, which does not completely surround the brake drum 22, but is interrupted in the region of a spreading element 24. The brake pad 23 may be biased by a spring element 27, 27 'in the direction of the brake drum 22. The spring element 27, 27 'may be, for example, a steel wire spring 27, which is received in a groove of the brake pad 23. However, the brake pad 23 may also have extensions 26, which act on the brake pad 23 by springs 27 ', which are supported on the brake housing 20 to screws 35 in the braking direction.

The rotatably mounted in the brake housing 20 expansion element 24 is substantially cylindrical and has in the region which is disposed between the brake pad 23, a contour 28, which is formed for example by two mutually parallel surfaces, and in the interrupted region of the brake pad 23rd engages, as shown in FIG. 10. The distance of this area and the distance of the parallel surfaces of the contour 28 are coordinated so that in the position shown in FIG. 10, the prestressed brake pad 23 acts braking on the brake drum 22.

If the expansion element 24 is rotated, the brake pad 23 is pressed apart by the contour 28, whereby the brake 17 is released and the brake drum 22 is free. In the case of a de-energized drive motor 6, the motor shaft 7 and the gear 8 connected thereto can thus rotate freely with its output shaft 10. Thus, the tensioned when opening the active leaf 1 spring of the spring assembly 9 can cause a rotational movement of the output shaft 10 in the closing direction of the active leaf 1.

The expansion element 24 may be formed so that it can be rotatably fixed in a recess in the brake housing 20 by snapping. For this purpose, the expansion element 24 may be provided with slots 36 which allow an elastic deformation during insertion of the expansion element 24 in the recess.

For rotating the expansion element 24, a lever 25 is arranged on the latter, which is in operative connection via the transmission element 18 with the door leaf-side door drive 4. The transmission element 18 can in the simplest case be a cable. Instead of the lever 25, the cable can wrap around the spreader 24 and cause by a winding or winding the rotational movement. For this purpose, a cam disc 37, as shown in FIG. 12, arranged or formed on the expansion element 24, whereby the balance of power can be influenced. Thus, the operation of the transmission element 18 can be implemented in an initial large rotational movement of the spreader 24 with a smaller force, with increasing counterforce by the force acting on the brake pad 23 steel wire spring 27 or the springs 27 'is an increased force with less rotational movement. It is also conceivable to form the contour 28 as a curve in order to influence the course of the force as a function of the rotational movement of the expansion element 24, as shown in FIG. 11. The provision of the expansion element 24 is effected by acting on the brake lining 23 in the braking position spring forces of the steel wire spring 27 or the springs 27 '.

The triggering element 19 for regulating the closing sequence is arranged in the gear 8 of the door leaf-side door drive 4. The winding disk 15 rotatably connected to the output shaft 10 'has a driver 29 which can be moved in a guide 32 arranged at least approximately semi-circularly in the triggering element 19. The trigger element 19 has opposite pivot levers 30, 30 ', to which the transmission element 18 optionally - depending on the mounting of the door drive 3, 4 on the hinge side or hinge opposite side - can be set, thereby changing the door drives 3, 4, the logical operation the brake 17 takes place. In order to bring the transmission element 18 in the case of mounted on the hinge side door drives 3, 4 with the trigger element 19 in operative connection, an intermediate piece 31 is arranged, which leads out the attachment point of the transmission 8. When mounting on the opposite side of the tape this is not required, as is accessible by a removable cover on the gear 8, the upper pivot lever 30. The inactive leaf 2 is in its closed position, the spring in the spring assembly 9 is relaxed. The rotatably mounted on the output shaft 10 winding disk 15 is in the starting position shown in Fig. 9. The driver 29 is in the semicircular Guide 32 in Appendix, whereby the trigger element 19 is pivoted counterclockwise. In this position, the transmission element 18 is shifted in Fig. 9 to the right, whereby a release of the brake 17 in the gangway-side door drive 3 by turning the trigger element 19, as described above, is carried out.

If the door drive 4 is energized to open the passive leaf 2, the output shaft 10 'rotates clockwise with the winding disc 15 and the driver 29 in Figures 8 and 9. The driver 29 comes out of the system with the end portion of the guide 32, whereby the on the output shaft 10 'freely rotatable trigger element 19 is pivoted by acting on the expansion element 24 restoring forces of the spring-loaded brake pad 23 in a clockwise direction. De brake lining 23 thus arrives in its position blocking the brake drum 22 for detecting the active leaf 1. Further opening of the active leaf 1 is possible at any time by the freewheel 21, but closing is prevented by the brake 17.

If the inactive leaf 2 is guided by the spring assembly 9 back into the closed position, the driver 29 again comes into abutment against the end of the guide 32 and thus pivots the trigger element 19 back to the starting position, whereby the brake 17 is released for the active leaf 1, and this logically after the inactive leaf 2 closes.

In case of overload, for example due to improper, manual closing of the detected active leaf 1, damage to the entire door system is avoided in that the brake 17 is designed so that in this case the brake pad 23 can slip on the brake drum 22.

List of reference characters

1

leaf

2

Fixed leaf

3

Door operator, gangway side

4

Door drive, low-floor side

5

casing

6

drive motor

7

motor shaft

8th

transmission

9

spring assembly

10, 10 '

output shaft

11

control

12

transformer

13, 13 '

sliding arm

14, 14 '

slide

15

winding disk

16

flat belts

17

brake

18

transmission element

19

triggering element

20

brake housing

21

freewheel

22

brake drum

23

brake lining

24

spreader

25

lever

26

extension

27, 27 '

feather

28

contour

29

takeaway

30, 30 '

pivoting lever

31

connecting piece

32

guide

33

encoders

34

magnet

35

screw

36

slot

37

cam

Claims (19)

Closing sequence control device for double-hinged hinged doors, with an underrunning moving leaf and a swinging fixed leaf, and with door drives for motor-driven opening of the leaves,
wherein each door drive has an output shaft on which a sliding arm or a linkage for pivoting the door is arranged rotatably,
and wherein the output shaft cooperates with a spring arrangement for closing the door leaves,
with a blocking device for the active leaf, which is controllable in dependence on the position of the inactive leaf, wherein the blocking device is arranged centrally to the motor shaft of the gangway side door drive,
and with a transmission element which cooperates with one end with the blocking device and with its other end with a tripping element actuated by the stand-side door drive as a function of the position of the inactive leaf,
characterized,
in that the triggering element (19) is designed for a selective arrangement of the transmission element (18), whereby the operating direction of the blocking device remains the same, irrespective of the manner of mounting the door drives (3, 4). Closing sequence control device according to claim 1,
characterized in that on the trigger element (19) extensions (30, 30 ') are provided for the arrangement of the transmission element (18). Closing sequence control device according to claim 2,
characterized in that the extensions (30, 30 ') for selectively arranging the transmission element (18) according to the mounting of the door drives (3, 4) are formed opposite each other on the trigger element (19). Closing sequence control device according to claim 1,
characterized in that the triggering element (19) is rotatably mounted on the output shaft (10, 10 '). Closing sequence control device according to claim 1,
characterized in that the triggering element (19) has a guide (32) for engagement of a driver (29). Closure sequence control device according to claim 5,
characterized in that the driver (29) is arranged on a rotatably connected to the output shaft (10, 10 ') winding disc (15) which is operatively connected to the spring assembly (9), wherein the position of the winding disk (15) and des Driver (29) corresponds to the open position of the passive leaf (2). Closure sequence control device according to claim 5,
characterized in that the driver (29) at an open position of the inactive leaf (2) near the closed position in contact with the trigger element (19) reaches the end region of the guide (32), whereby the trigger element (19) is pivoted. Closing sequence control device according to claim 1,
characterized in that the blocking device is designed as a drum brake. Closing sequence control device according to claim 8,
characterized in that a brake pad (23) is arranged outside on the lateral surface of a brake drum (22). Closing sequence control device according to claim 10,
characterized in that the brake drum (22) remains free in a region of the brake lining (23) into which a spreading element (24) engages. Closing sequence control device according to claim 11,
characterized in that the expansion element (24) has a contour (28) which lifts the brake lining (23) from the brake drum (22) upon rotation of the expansion element (24). Closure sequence control device according to claim 9,
characterized in that the brake pad (23) has a bias in the direction of the brake drum (22). Closure sequence control device according to claim 9,
characterized in that the brake pad (23) is biased by a spring (27, 27 ') in the direction of the brake drum (22). Closure sequence control device according to claim 13,
characterized in that the spring (27) is arranged in a circumferential groove in the brake lining (23). Closure sequence control device according to claims 9 and 13,
characterized in that the brake pad (23) has at least one extension (26), wherein a spring (27 ') on the extension (26) is arranged, whereby the brake pad (23) in the direction of the brake drum (22) is subjected to force. Closing sequence control device according to claim 11,
characterized in that the contour (28) of the expansion element (24) is formed as a curve, whereby the force profile when releasing the brake lining (23) to an increasing counterforce of the spring (27, 27 ') is adaptable. Closing sequence control device according to claim 10,
characterized in that a lever (25) is arranged for actuation on the expansion element (24). Closing sequence control device according to claim 10,
characterized in that on the expansion element (24) a cam disc (37) is arranged for actuation, whereby the force profile when releasing the brake pad (23) to an increasing counterforce of the spring (27, 27 ') is adaptable. Closure sequence control device according to claim 9,
characterized in that the brake drum (22) is cup-shaped to reduce the mass moved.

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