EP1431497B1 - Free running device for a wing control of a door or window - Google Patents

Abstract

The drive is integrated in the casement or frame and has an actuating arm which pivots when the casement is actuated. The actuating arm has in the region around the output shaft (11) opposing bores for inserting a follower which can be inserted in one of the bores to selectively fix the actuating direction of the drive. The follower disc (13) is formed semi circular to allow symmetrical use of the drive on left and right casements.

Description

The invention relates to a freewheel device for driving a wing of a door or a window according to the preamble of claim 1.

Freewheel devices make it possible to decouple a propelled wing of a door or a window from the drive. This makes it possible to operate the wing freely, corresponding to a wing on which no drive would be arranged. Freewheel devices cooperate with a locking device which blocks the energy storage in the door closer. The blockage can be canceled, whereby the wing is guided by the door closer in its closed position. This is especially used for fire doors to close in case of fire, the wings and thus delay the fire spread or even prevent.

From the DE 92 09 276 U1 is known a top door closer with a slide rail linkage for concealed installation in a door or door frame, with a spring assembly in the closing direction operable closer shaft and a damping piston operatively connected to this and with a closer to the closer shaft coupled, pivotable actuating arm, which is arranged on another end slider in a in a door frame or in a door sash sliding rail summarizes. In this case, the closer shaft on a Hubkurvenscheibe, wherein the not emerging from the housing closing shaft end is stored in a Achslagerung within the housing.

The door closer is suitable for installation in the door leaf or door frame, but has no freewheel device.

From the DE 198 40 766 A1 is a drive for a wing of a door or a window known with a drive housing, with a arranged in the drive housing return device which is acted upon opening or closing of the wing and is designed as an energy storage for automatically closing the wing, with a in the drive housing arranged damping device for damping the closing and / or opening movement of the wing, arranged in the drive housing driven member, which cooperates with the return device and / or damping device, with a force-transmitting linkage, which is supported on the one hand in a rotary or sliding bearing and on the other hand with is connected to the output member. In this case, the force-transmitting linkage is freely rotatably mounted on the output member or in the region of the output member, and a closing lever is rotatably connected to the output member, lockable with a retaining device.

A disadvantage is the required space for the freely rotatable linkage. The device also requires an additional electromagnetic retention device to be placed on the door frame. When used on DIN left or DIN hinged doors, the door closer must be turned to mount the linkage with the freewheel device on each opposite shaft end of the closer shaft, since the rotational movement of the shaft in the opening direction of toothed door closers in only one direction is possible.

From the DE 32 46 457 A1 a door closing device is shown, consisting of a arranged in a housing, upon pivoting of the respective door from the closed position tensionable unit for closing force generation, connected to this unit and guided out of the housing drive shaft, connected to the drive axle via an overrunning clutch, for actuating the to be closed door certain lever, a unit for closing force generation, and a lockable at least in a predetermined opening angle range at the end of Aufschwenkbewegung in the closing direction locking arrangement, which can be selectively switched on and / or switched off in response to control signals. In this case, there is the one-way clutch from a, over a predetermined stroke a relative rotation between the actuating lever and the drive axle approved thread rotation, and from a provided at least at one end of the stroke, acting with respect to the operating lever frictional stop, wherein the adjusting between the actuating lever and friction stop holding force is smaller than the holding force of the closing force generating unit in the closing direction blocking locking arrangement.

A disadvantage of this device is the space required for the one-way clutch between the housing and the actuating lever. The frictional stop is difficult to adjust and adjust more frequently because of possible wear.

The invention has for its object to form a freewheel device for driving a wing, which has a low height and thus is suitable for integrated door closer. The drive can be used for DIN left and DIN right hinged doors.

The object is solved by the features of claim 1.

The subclaims form advantageous embodiments of the invention.

Actuators for the wing of a door or a window can be resting on the wing or integrated in the wing or in a frame or a frame. In this case, the drive has an energy store, which stores the energy required for closing when opening the wing. For this purpose, for example, in a drive for the wing of a door, which is mounted on or in the wing, an actuating arm between the drive and a slide rail mounted in or on the frame. The drive-side end of the actuating arm acts together with an output shaft of the drive, wherein the other end of the actuating arm has a slider which is guided in the slide rail.

When you open the wing is rotated by the operating lever, the output shaft of the drive, whereby the closing spring in the drive tensioned and the energy is stored to then automatically return the wing in its closed position. For this purpose, a conversion of the rotational movement of the output shaft in a linear movement, which biases the spring. In this case, toothed pistons can be used, which cooperate with a fixed pinion on the output shaft. The rotational movement of the pinion causes a longitudinal displacement of the piston. In this case, the piston divides the filled with a hydraulic fluid interior of the drive into two parts, which can be adjusted or controlled by overflow and valves and throttles the behavior of the drive. The disadvantage here is that such drives, viewed from the closed position of the wing out, allow only one direction of rotation or displacement of the piston. In order to use the drive for different opening directions of the sash - DIN left or right DIN -, the drive has an output shaft, which emerges on both sides of the drive, which is why the drive with reverse mounting then also for the other direction of rotation can be used.

In the case of drives for integrated installation in a sash or frame, reverse installation is not possible. Therefore, drives are used with Hubkurvenscheibe, which are equally suitable for both directions of rotation of the wing when using a symmetrical Hubkurvebenscheibe, such as a heart curve. On the Hubkurvenscheibe based on roles a spring acted on a damping piston and acted upon by the closing spring from the spring piston. The damping piston divides the filled with a hydraulic fluid interior of the housing in two sub-areas. By provided with throttle valves overflow and arranged in the damping piston valves, the movement of the damping piston and thus the behavior of the drive can be influenced.

In order to enable a free movement of the wing, a freewheel device is arranged on the drive. It is advantageous here that the energy required for closing is supplied to the drive only when the wing is first opened must, after which the wing can be operated like a wing without drive. For this purpose, the drive has a freely rotatable receptacle for the actuating lever on the output shaft. Furthermore, below this recording a rotatably connected to the output shaft driving plate is arranged, which is semicircular. The actuating arm has in the region around the receptacle on two opposite holes, which may have threads, and in which a driver can be used. This allows the drive to be used for left-hinged as well as right-hinged doors. The driver is designed such that it protrudes in the inserted state in the plane of the semi-circular driving plate. In this case, the hole in which the driver is used to select according to the direction of blade rotation, so that it comes with the wing closed in contact with the driving plate. When pivoting the actuating arm by opening the wing to the output shaft rotatably disposed on the output shaft take-up disc is rotated by the driver. The spring piston and the damping piston are moved over the Hubkurvenscheibe, the energy is stored in the closing spring, and the hydraulic fluid flows from one side of the damping piston to the other side over. If the wing is released, the energy stored in the closing spring causes the spring piston to rotate back the cam disc arranged on the output shaft, as a result of which the damping piston is likewise displaced back and the hydraulic fluid flows back again.

If only an overflow of hydraulic fluid in the direction required for the opening process is enabled by a valve position and locked in the opposite direction, the damping piston prevents the cam disc from rotating back, so that the output shaft likewise can not rotate back.

If the wing out of this position out in the closed direction, the arranged on the freely rotatable on the output shaft operating lever driver is guided out of its contact with the semi-circular driving plate, and the wing is now freely movable.

The valve can be actuated electromagnetically, and the return flow of the hydraulic fluid can be released again. This can be done for example on a fire door by a smoke alarm system. After release of the valve, the energy stored in the closing spring can turn back the output shaft with the driving disc via the spring piston and the cam disc. If the driving plate comes into contact with the driver of the actuating arm, the rotational movement is transmitted to this, whereby the wing is guided in its closed position.

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

Fig. 1

einen Ausschnitt eines Flügels einer Tür mit zugehörigem Rahmen und mit einem Teilschnitt der Einbausituation eines integrierten Türantriebs;

Fig. 2

eine Schnittdarstellung eines Hubkurventürschließers mit Freilaufvorrichtung für den integrierten Einbau;

Fig. 3a

die Draufsicht auf einen integrierbaren Antrieb mit Freilaufvorrichtung mit einem für Türen DIN rechts montiertem Betätigungsarm;

Fig. 3b

die Draufsicht auf einen integrierbaren Antrieb mit Freilaufvorrichtung mit einem für Türen DIN links montiertem Betätigungsarm;

Fig. 4

eine Draufsicht auf eine Mitnehmerscheibe.

Showing:

Fig. 1

a section of a wing of a door with associated frame and a partial section of the installation situation of an integrated door drive;

Fig. 2

a sectional view of a Hubkurventürschließers with freewheel device for integrated installation;

Fig. 3a

the top view of an integrable drive with freewheel device with a door DIN right mounted operating arm;

Fig. 3b

the top view of an integrable drive with freewheel device with a door DIN left mounted operating arm;

Fig. 4

a plan view of a drive plate.

In the Figures 1 and 2 a drive 3 integrated in a wing 1 of a door is shown, together with an associated frame 2. In the frame 2, the slide rail 6 is installed, in which the slider 5 is guided. The slider 5 is rotatably disposed at one end of an actuating arm 4, wherein the other end of the actuating arm 4 is rotatably connected to a receptacle 14 of the drive 3, and cooperates with the driving plate 13 of the drive 3. Of the Drive 3 can also be integrated in the frame 2 and the slide 4 in the wing 1.

The drive 3 has a housing 7, in which a spring-loaded damping piston 8 and a spring piston 9 are arranged. On the spring piston 9 acts a closing spring 10 as energy storage, which can be biased by a closing force adjustment 15 to adjust the drive 3 to different wings 1.

The damping piston 8 divides the housing interior filled with hydraulic oil into two areas in front of and behind the damping piston 8. Valves in the piston and by overflow passages in the housing, which are provided with throttle valves, can influence the behavior of the drive 3. Thus, the opening damping, closing damping, the end impact and a determination of the wing 1 can be performed. The settings can be done manually or electromagnetically or by electric motor.

Between the damping piston 8 and the spring piston 9, an output shaft 11 is arranged, which is rotatably mounted in the housing 7. On the output shaft 11, rotatably connected thereto, a Hubkurvenscheibe 12 is arranged. The Hubkurvenscheibe 12 is symmetrical, for example, a heart curve to use the drive both for installation on DIN left and DIN right wings 1 can. The output shaft 11 has at its exiting from the housing 7 of the drive shaft end 3 a rotatably connected driving plate 13 and a freely rotatably mounted receptacle 14 for the actuating arm 4. The driving plate 13 with the receptacle 14 is in Fig. 4 shown.

The driving plate 13 is recessed semicircular and has two depressions, in which a fixable on the actuating arm 4 driver 16 can engage.

As it is from the FIGS. 3a and 3b can be seen, the actuating arm can be placed and screwed to the receptacle 14, wherein the actuating arm. 4 can rotate freely without the closer shaft 11 is rotated. The actuating arm 4 comprises two bores 18, which may have a thread.

By inserting a driver 16 in one of the holes 18 such that the driver 16 extends into the plane of the driving plate 13, passes during a rotational movement of the actuating lever 4 of the driver 16 positively in abutment in one of the recesses of the driving plate 13, whereby this is moved. Depending on the use of the drive 3 for a door DIN left or DIN right, the direction of rotation when opening the wing 1 is different, as in the FIGS. 3a and 3b represented by the arrow A. The driver 16 is therefore in each case in the corresponding bore 18 to use, so that the driving plate 13 taken along with the opening of the wing and thus the output shaft 11 is rotated.

The damping piston 8 and the spring piston 9 each have at their the output shaft 11 facing the end of each a rotatably mounted roller 17, which roll on the Hubkurvenscheibe 12 of the output shaft 11. If the output shaft 11 is rotated by opening the blade 1 and the resulting movement of the actuating arm 4 via the driver 16 and the driving plate 13, the damping piston 8 and the spring piston 9 are displaced by the Hubkurvenscheibe 12. There is an implementation of the rotational movement of the output shaft 11 in a linear movement. In this case, the spring piston 9 moves such that the closing spring 10 is tensioned by compression and thus stores the energy required for the closing of the wing. The spring-loaded damping piston 8 is also displaced, wherein the hydraulic oil can flow from the one piston side to the other side of the piston through overflow.

By a valve, the backflow of the hydraulic fluid can be prevented, whereby the damping piston 8 can move when opening the wing 1, but can not move back again. This ensures that the Hubkurvescheibe 12 not when closing the wing 1 by the force the closing spring 10 turns back, but a further opening of the wing 1 and thus a further tightening of the closing spring 10 and displacement of the damping piston 8 is possible. As a result, the output shaft 11 is blocked with the driving disc 13 fixed thereto in the closing direction.

If the wing 1 is guided with the valve closed and thus blocked driving plate 13 in the direction of its closed position, the driver 16 of the actuating arm 4 releases from its investment in the recess of the driving plate 13, since the actuating arm 4 is arranged on the freely rotatable receptacle 14. The wing 1 can now, decoupled from the drive 3, according to a wing 1, on which no drive 3 is arranged, are moved freely.

If the determination of the drive 3 is triggered by the valve is opened, the damping piston 8 can move back again, and the output shaft 11 with the driving plate 13 rotates back. Depending on the current position of the wing 1, the driving plate 13 comes into abutment with the driver 16, and the rotational movement of the output shaft 11 is transmitted to the actuating arm 4, whereby the wing 1 is guided in its closed position. This is particularly advantageous in fire doors, which must be closed in case of danger, in normal operation, the door does not always have to be opened against the closing force of the drive 3.

List of reference characters

1

wing

2

frame

3

drive

4

actuating arm

5

skid

6

slide

7

casing

8th

damping piston

9

spring piston

10

closing spring

11

output shaft

12

cam disc

13

driving plate

14

admission

15

Closing force adjustment

16

takeaway

17

role

18

drilling

Claims (8)

1. Drive having freewheel device for a leaf of a door or window, it being possible for the drive (3) to be integrated in the leaf or in the frame, and the drive (3) having an actuating arm (4) which is arranged on an output shaft (11) of the drive and which is pivoted when the leaf is actuated, and the actuating arm (4) being arranged on the output shaft (11) such that it can rotate freely and having a driver (16) which comes into contact with a driver disc (13) firmly arranged on the output shaft (11) as a function of the direction of rotation,
   characterized in that,
   in the region around the output shaft (11), the actuating arm (4) has mutually opposite holes (18) for the insertion of the driver (16), it being possible for the driver (16) to be inserted into one of the holes (18) in order to define the actuating direction of the drive (3) as desired.
2. Drive having freewheel device according to Claim 1, characterized in that the driver disc (13) is of semicircular shape for the symmetrical use of the drive (3) on left-hand and right-hand leaves (1).
3. Drive having freewheel device according to Claim 1, characterized in that the driver disc (13) has depressions in which the driver (16) can engage with a form fit.
4. Drive having freewheel device according to Claim 1, characterized in that the drive (3) has a fixing device which fixes the output shaft (11).
5. Drive having freewheel device according to Claim 4, characterized in that, when the output shaft (11) is fixed, the actuating arm (4) can be release from the movement of the leaf (1) when the latter is pivoted in the closing direction.
6. Drive having freewheel device according to Claim 4, characterized in that the fixing device can be controlled electrically.
7. Drive having freewheel device according to Claim 4, characterized in that the fixing device uses valves to influence the bypass ducts of a hydraulic damping piston (8) which interacts with the output shaft (11) and belongs to the drive (3), in such a way that the output shaft (11) cannot pivot the actuating lever in the closing direction of the leaf (1).
8. Drive having freewheel device according to Claim 4, characterized in that the fixing device uses valves to influence the bypass ducts of a hydraulic damping piston (8) which interacts with the output shaft (11) and belongs to the drive (3), in such a way that the actuating arm (4) can pivot the output shaft (11) when the leaf (1) is pivoted in the opening direction.

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