EP1870550A2 - Device for controlling the closing sequence of rotary doors with two leaves - Google Patents

Abstract

The device has a blocking device provided for a movable leaf that is controllable in dependence of a position of a fixed leaf. The blocking device is arranged centrically on a motor shaft (7) of a movable leaf-sided door drive, where the blocking device is formed as a brake (17) with a V-shaped brake lining (23) that is stressed by a spring (27) in a direction of a front side of a brake drum (22). The brake drum exhibits a V-shaped circumferential slot, where the V-shaped brake lining is engaged into the circumferential slot.

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 requires a relatively large installation space for the blocking device in the housing of the door drive.

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 compact and cost-effective 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-winged door having a moving leaf and a fixed leaf, equipped with door drives, the interrupting passive leaf logically closes in front of the sweeping moving 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 stand-wing-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 door leaf-side door drive is extended beyond the motor 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 has the end face a circularly arranged, V-shaped recess with which a corresponding, oppositely formed V-shaped brake pad can be brought into engagement, whereby high braking forces are possible. The brake pad is acted upon in the direction of the brake drum by a spring which is supported on a bracket and can be lifted against the force of the spring by a tilting element.

The tiltably mounted in pins on the holder tilting element is operatively connected to other pins with the brake element, whereby in a tilting of the Tilting - regardless of the direction of actuation of the tilting element - the brake pad is lifted from the brake drum.

The tilting of the tilting element is effected by the standing-wing-side trigger, which is connected by a transmission element, for example by a cable or a rod, with the tilting element. In this case, the force transmission can be determined by the choice of the point of application of the transmission element on the tilting 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 of 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, the triggering element becomes free, and the tilting element arranged on the gangway-side brake tilts through the restoring force of the spring such that the brake lining comes into contact with the brake drum and locks the motor shaft in the closing direction. The trigger element is operatively connected by the transmission element, such as a cable or a rod, with the tilting 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 due to improper manual operation of the detected active leaf is avoided by designing the brake is that in case of overload, the brake pad can slip on the brake drum.

In the following an embodiment in the drawing with reference to the figures will be explained in more detail.

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 die Bremse nach Fig. 3;

Fig. 6

eine Seitenansicht der Bremse nach Fig. 3 in Bremsstellung;

Fig. 7

eine Ansicht des Kippelements zum Lösen der Bremse;

Fig. 8

eine Seitenansicht der Bremse nach Fig. 3, wobei die Bremse gelöst ist;

Fig. 9

eine weitere Seitenansicht der Bremse nach Fig. 5, wobei die Bremse bei einer anderen Betätigungsrichtung gelöst ist;

Fig. 10

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

Fig. 11

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

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 the brake of FIG. 3;

Fig. 6

a side view of the brake of Figure 3 in the braking position.

Fig. 7

a view of the tilting element for releasing the brake;

Fig. 8

a side view of the brake of Figure 3, wherein the brake is released.

Fig. 9

a further side view of the brake of Figure 5, wherein the brake is released in another direction of actuation.

Fig. 10

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. 11

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

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 causes a closing-Shen the door leaf 1 and 2 respectively. 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. 10 and 11 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 is shown in FIGS. 5 to 9, a brake 17 is additionally arranged for 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. The guided out of the motor housing motor shaft 7 is mounted in a holder 24. Between the holder 24 and the motor housing, a freewheel 21 is fixed on the motor shaft 7, 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 when the brake 17 is detected. On the holder 24, a rotary encoder 33 is further arranged, which cooperates with a arranged on the motor shaft 7 magnet 34 for controlling the door drive 3.

Between the holder 24 and the brake drum 22, the brake pad 23 and a plate-shaped tilting element 25 is arranged. The freely rotatable about the motor shaft 7 arranged brake pad 23 is acted upon by a spring 27, which is supported on the holder 24 and the brake pad 23 against the brake drum 22 for detecting the motor shaft 7 applied. For this purpose, the tilting element 25 has a recess 29, through which the spring 27 can engage.

The brake drum 22 has the end face a circularly arranged, V-shaped recess into which the complementarily formed V-shaped brake pad 23 engages. The V-shaped brake pad 23 may be flattened at its tip, to compensate for wear of the friction linings, whereby the brake pad 23 is still fully applied even after wear. Furthermore, the friction surface is increased by a V-shape with respect to a flat shape, whereby larger braking forces are possible.

On the holder 24, two pins 26 are fixed on opposite sides of the motor shaft 7 and the spring 27 perpendicular to each other, which hold the tilting member 25 by the pins 26 have at the ends thickenings. The tilting member 25 has two corresponding recesses 35, which are larger in diameter than the pins 26, so that the tilting member 25 can be tilted, as shown in Figures 8 and 9. Offset to the arrangement of the pins 26, the tilting element 25 shown in Fig. 7 further recesses 35 'for receiving pins 26', with which the brake pad 23 is held on the tilting element 25. These recesses 35 'are also larger in diameter than the pins 26' formed to allow a tilting movement of the tilting member 25 relative to the brake pad 23. The pins 26 ', as well as the pins 26, have thickenings at the ends.

Furthermore, the tilting element 25 has a receptacle 36, in which the transmission element 18 is accommodated. Due to the possible, different types of installation of the door drives 3, 4, the tilting element 25 may have a plurality of receptacles 36 for the optional arrangement of the transmission element 18. In this case, a clamping element 20 may be arranged on the transmission element 18, on which the tilting element 25 is supported during an actuation, as shown in Fig. 6. Depending on the design of the gangway-side release device, the tilting element 25 can be actuated in different directions. For this purpose, the transmission element 18 acting as a cable pull acting on the tilting element 25 or effect as a rod and a pressing operation. The transmission element 18 may be guided in a guide 28. Advantageously, the brake 17, with the tilting element 25 for releasing, regardless of a required by the assembly of the door drives 3, 4 actuation direction of the actuating element 18 can be used.

In Figures 5 and 6, the brake 17 is shown in the braking position, wherein the brake pad 23 is in engagement with the brake drum 22. The tilting element 25 is in its center position in contact with the pins 26 and 26 '. If the tilting element 25 is actuated by the transmission element 18, the tilting element 25 is supported on the upper or lower pin 26, depending on the actuating direction. Due to the vertical spacing of the pins 26 to the pins 26 'creates an effective lever which acts on the pins 26', and the brake pad 23 lifts from the brake drum 22, whereby the brake 17 is released and the brake drum 22 is free.

The balance of power can be influenced by the distance of the pins 26, or by their position to the pins 26 ', and by the position of the receptacle 36.

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 the 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 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 lever 30, 30 ', to which the transmission element 18 optionally - depending on the mounting type of the door drive 3, 4 on the hinge side or hinge side - can be set, thereby changing without change to 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. Is the inactive leaf 2 in its closed position, the spring in the spring assembly 9 is relaxed. The winding disk 15, arranged rotatably on the output shaft 10, is in the starting position shown in FIG. The driver 29 is in the semicircular guide 32 in abutment, whereby the trigger element 19 is pivoted counterclockwise. In this position, the transmission element 18 is displaced in Fig. 11 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 disk 15 and the driver 29 in FIGS. 10 and 11. The driver 29 comes out of the system with the end portion of the guide 32, whereby the freely rotatable on the output shaft 10 'trigger element 19 is pivoted by acting on the tilting 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 again guided into the closed position by the spring arrangement 9, the carrier 29 again comes into abutment against the end of the guide 32 and thus pivots the triggering element 19 back into the starting position, whereby the brake 17 is released for the active leaf 1 and this consistent with the passive 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

clamping element

21

freewheel

22

brake drum

23

brake lining

24

bracket

25

tilt element

26, 26 '

pen

27

feather

28

guide

29

recess

30, 30 '

pivoting lever

31

connecting piece

32

guide

33

encoders

34

magnet

35, 35 '

recess

36

admission

Claims (13)

Door-closing control device for double-leaf doors, with a leaf under wing and a swinging passive 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 on the motor shaft of the gangway-side door drive,
and with a transmission element which cooperates with one end with an actuating device of 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,
wherein the blocking device is arranged centrically to the motor shaft of the gangway-side door drive,
characterized,
in that the blocking device is designed as a brake (17) with a brake drum (22) and a brake lining (23) acted upon by a spring (17) in the direction of the end face of the brake drum (22). Closing sequence control device according to claim 1,
characterized in that the brake drum (22) has a V-shaped circumferential groove in which engages the complementarily formed V-shaped brake pad (23), whereby the effective friction surface is increased. Closure sequence control device according to claim 5,
characterized in that the V-shaped brake pad (23) is flattened at its tip to compensate for the wear of the friction linings. Closing sequence control device according to claim 1,
characterized in that the brake lining (23) is provided with pins (26 ') retained in recesses (35'), the recesses (35 ') being larger in diameter than the pins (26), thereby causing tilting of the Tilting element (25) while maintaining the position of the brake pad (23) with respect to the brake drum (22) is possible. Closing sequence control device according to claim 1,
characterized in that the actuating device for releasing the blocking device is designed as a tilting element (25) which, when actuated by the transmission element (18), causes the blocking device to be released independently of the actuating direction. Closure sequence control device according to claim 5,
characterized in that the tilting element (25) is held with pins (26), wherein on the tilting element (25) recesses (35) are provided which are larger in diameter than the pins (26), whereby a tilting of the tilting element (25) is possible. Closure sequence control device according to claim 5,
characterized in that on the tilting element (25) a plurality of receptacles (36) for receiving the transmission element (18) are arranged, whereby the balance of power for releasing the brake (17) are adaptable. 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 8,
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). Closing sequence control device according to claim 11,
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). Closing sequence control device according to claim 12,
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.

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