EP1431497A2 - 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 Door or window according to the preamble of claim 1.

Freewheel devices allow a wing with a drive decouple a door or window from the drive. This enables to operate the wing freely, corresponding to a wing on which none Drive would be arranged. Freewheel devices work with a locking device together, which blocks the energy storage in the door closer. The blocking can be picked up, allowing the wing to be opened by the door closer its closed position is managed. This is particularly the case with fire doors used to close the wings in the event of a fire and thus the spread of fire to delay or even prevent it.

From DE 92 09 276 U1 is an overhead door closer with a slide rail linkage known for concealed installation in a door leaf or door frame, with a closer shaft which can be actuated by a spring arrangement in the closing direction and one with this damping piston operatively connected and with one with the Closer shaft of a pivoted actuating arm that is coupled at the end another slider arranged in another in a door frame or in one Door wing recessed slide rail holds. The closer shaft has one Cam disc, with the NO shaft end not emerging from the housing is stored in an axle bearing within the housing.

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

DE 198 40 766 A1 describes a drive for a wing of a door or one Known window, with a drive housing, with one in the drive housing arranged reset device, which when opening or closing the wing is acted upon and as an energy store for automatically closing the Wing is formed with a damping device arranged in the drive housing to dampen the closing and / or opening movement of the Wing, with an output member arranged in the drive housing, which cooperates with the reset device and / or damping device with a power transmission linkage, which on the one hand in a rotary or Slide bearing is supported and on the other hand is connected to the output member. The power transmission linkage is freely rotatable on the output member or stored in the area of the output member, and a locking lever is rotatable with the Output link connected, lockable with a holding device.

A disadvantage is the space required for the freely rotatable linkage. The device also requires an additional electromagnetic to be placed on the door frame The fixture. When used on DIN left or DIN Doors hinged on the right must be turned to close the door Linkage with the freewheel device on the opposite shaft end the closer shaft to mount because the shaft rotates in the opening direction with pinion door closers is only possible in one direction.

DE 32 46 457 A1 shows a door closing device consisting of one arranged in a housing when the respective door swings open unit for clamping force generation that can be tensioned from the closed position, one with this unit connected and led out of the housing drive shaft, one connected to the drive axle via a one-way clutch for actuation the lever to be closed, a unit for generating the closing force, and at least in a predetermined opening angle range can be blocked in the closing direction at the end of the swing-open movement Locking arrangement, which can be optionally activated and / or depending on control signals can be switched off. The one-way clutch consists of one, one predetermined stroke a relative rotation between the operating lever and drive axle approved thread rotation, and from at least on provided a stroke end, one effective with respect to the actuating lever becoming frictional stop, the between the operating lever and Holding force setting the frictional stop is smaller than the holding force the block the unit for generating the closing force in the closing direction Lock assembly.

A disadvantage of this device is the space required for the one-way clutch between the housing and the operating lever. The friction stop is difficult to adjust and more frequent due to possible wear readjust.

The invention has for its object a freewheel device for the drive form a wing that has a low profile and thus for integrated door closer is suitable. The drive is for DIN left and DIN doors hinged on the right can be used.

The object is solved by the features of claim 1.

The subclaims form advantageous design options for the invention.

Drives for the wing of a door or window can rest on the wing or integrated in the sash or in a frame or a frame his. The drive has an energy store, which when opening the Wing stores the energy required for closing. This is for example with a drive for the wing of a door, which is on or in the wing is mounted, an actuating arm between the drive and one in or on the Frame mounted slide rail arranged. The drive end of the actuator arm interacts with an output shaft of the drive, whereby the other end of the actuating arm has a slider, which in the Slide rail is guided.

When the wing is opened, the output shaft of the Drive rotated, which causes the closing spring in the drive to be tensioned and the energy is saved to the wing then automatically back to its closed position respectively. This is done by converting the rotary movement of the Output shaft in a linear movement that tensions the spring. Here you can Toothed pistons are used, which with a on the output shaft cooperate fixed pinion. The rotation of the pinion causes a longitudinal displacement of the piston. The piston shares the with one Hydraulic fluid filled interior of the drive in two parts, being by Overflow channels and the behavior of the drive can be set by means of valves and throttles or is controllable. The disadvantage here is that such drives, from the Considered closed position of the wing, only one direction of rotation or displacement allow the piston. To drive for different Using the opening directions of the wing - DIN left or DIN right - points the drive has an output shaft which emerges on both sides of the drive, which is why the drive with reverse assembly then also for the other direction of rotation is usable.

For drives for integrated installation in a sash or frame, the reverse installation not possible. Therefore, drives with cam disc which, when using a symmetrical cam disc, for example a heart curve, for both directions of rotation of the wing equally are suitable. The rollers are supported by rollers on the cam disc a spring loaded damping piston and a spring loaded with the closing spring Spring piston off. The damping piston shares it with a hydraulic fluid filled interior of the housing in two sections. By with Throttle valves provided overflow channels and arranged in the damping piston Valves can cause the movement of the damping piston and thus the behavior of the drive can be influenced.

In order to allow the wing to move freely, there is a freewheel device on the drive arranged. It is advantageous here that the drive only at the first Opening the wing the energy required to close it can be supplied must then be actuated like a wing without a drive can. For this purpose, the drive has a freely rotatable receptacle on the output shaft for the operating lever. Furthermore, a rotationally fixed is below this recording driving disc connected to the output shaft, which is semicircular. The actuating arm points in the area around the receptacle two opposite bores, which can have threads, and in which a driver can be used. This allows the drive used for both left hinged and right hinged doors become. The driver is designed such that it is in the inserted state the plane of the semicircular drive plate protrudes. Here is the hole in which the driver is used, according to the direction of sash rotation to be selected so that it clings to the drive plate when the sash is closed comes. When swiveling the actuating arm by opening of the wing around the output shaft is arranged in a rotationally fixed manner on the output shaft Driving disc rotated by the driver. The spring piston and the damping piston is moved over the cam disc, the energy is stored in the closing spring and the hydraulic fluid flows from one side of the damping piston over to the other side. Will the wing released, the energy stored in the closing spring causes the spring piston the cam disc arranged on the output shaft turns back, whereby the damping piston is also pushed back and the hydraulic fluid flows back again.

If a valve position only overflows hydraulic fluid in the allows for the direction required for the opening process and in the Locked in the opposite direction, the damping piston prevents the Cam disc so that the output shaft does not turn back either can.

If the sash is guided out of this position in the closed direction, which is arranged on the actuating lever which is freely rotatable on the output shaft Driver from his system with the semicircular drive plate, and the wing is now free to move.

The valve can be operated electromagnetically, and the backflow of the Hydraulic fluid can be released again. For example on a fire door by a smoke alarm system. After approval of the valve, the energy stored in the closing spring can be the output shaft turn back with the drive plate over the spring piston and the cam disc. If the drive plate comes into contact with the drive arm driver, the rotary motion is transferred to this, causing the wing is led into its closed position.

In the following, exemplary embodiments are shown in the drawing based on the Figures explained in more detail.

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.

Show:

Fig. 1

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

Fig. 2

a sectional view of a cam door closer with free-wheel device for integrated installation;

Fig. 3a

the top view of an integrable drive with freewheel device with an actuating arm mounted for doors on the right,

Fig. 3b

the top view of an integrable drive with freewheel device with an actuating arm mounted on the left for doors DIN.

In FIGS. 1 and 2 there is a drive 3 integrated in a wing 1 of a door shown, together with an associated frame 2. In frame 2 is the Slide rail 6 installed, in which the slider 5 is guided. The slider 5 is on one end of an operating arm 4 rotatably arranged, the other end of the actuating arm 4 with a receptacle 14 of the drive 3 rotatably connected is, and cooperates with the drive plate 13 of the drive 3. The Drive 3 can also be integrated in frame 2 and slide rail 4 in wing 1 his.

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 A closing spring 10 acts as an energy store, which is adjusted via a closing force 15 can be biased to drive 3 on different wings 1 adjust.

The damping piston 8 divides the interior of the housing filled with hydraulic oil two areas in front of and behind the damping piston 8. Through valves in the piston and through overflow channels in the housing, which are provided with throttle valves the behavior of the drive 3 can be influenced. So the opening damping, Closing damping, the final stroke and a determination of the wing 1 run. The settings can be manual or electromagnetic or done by an electric motor.

An output shaft is located between the damping piston 8 and the spring piston 9 11 arranged, which is rotatably mounted in the housing 7. On the output shaft 11 is rotatably connected to this, a cam disc 12 is arranged. The Stroke cam 12 is symmetrical, for example a heart curve around the Actuator for installation on left and right wing 1 to be able to use. The output shaft 11 points out of the housing 7 of the drive 3 emerging shaft end a rotationally connected driving plate 13 on and a freely rotatable receptacle 14 for the actuating arm 4. The driving plate 13 with the receptacle 14 is shown in FIG. 4.

The drive plate 13 is recessed in a semicircular shape and has two depressions in which a catch 16 which can be fixed on the actuating arm 4 engages can.

As can be seen from Figures 3a and 3b, the actuating arm can on the Mount 14 and screwed, the actuator arm 4th can rotate freely without the closer shaft 11 also being rotated. The operating arm 4 comprises two bores 18, which may have a thread.

By inserting a driver 16 into one of the bores 18 such that the Driver 16 extends into the plane of the drive plate 13, reaches one Rotary movement of the actuating lever 4 of the driver 16 in a form-fitting manner System in one of the recesses of the drive plate 13, which moves it becomes. Depending on the use of drive 3 for a door DIN left or DIN right, the direction of rotation when opening wing 1 is different, as shown in Figures 3a and 3b by arrow A. The driver 16 is therefore to be inserted into the corresponding hole 18 so that the drive plate 13 taken away when opening the wing and thus the output shaft 11 is rotated.

The damping piston 8 and the spring piston 9 each have on their the output shaft 11 facing end each have a rotatably mounted roller 17, which roll on the cam disc 12 of the output shaft 11. Will the Output shaft 11 by opening the wing 1 and the resulting movement of the actuating arm 4 via the driver 16 and the driving plate 13 rotated, the damping piston 8 and the spring piston 9 by the Stroke cam 12 shifted. The rotary movement is implemented the output shaft 11 in a linear movement. The spring piston moves 9 such that the closing spring 10 is tensioned by compression and thus stores the energy required to close the wing. The spring-loaded damping piston 8 is also moved, the hydraulic oil from one piston side to the other piston side through overflow channels can flow.

The backflow of the hydraulic fluid can be prevented by a valve, whereby the damping piston 8 move when opening the wing 1 can, but cannot move back again. This ensures that the cam disc 12 does not move when the wing 1 is closed the closing spring 10 turns back, but a further opening of the leaf 1 and thus a further tensioning of the closing spring 10 and displacement of the damping piston 8 is possible. As a result, the output shaft 11 is fixed to it Driving plate 13 blocked in the closing direction.

If wing 1 is closed with the valve closed and the drive plate blocked 13 in the direction of its closed position, the driver 16 the actuating arm 4 from its contact in the recess of the drive 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, corresponding to a wing 1, on which no drive 3 is arranged, can be moved freely.

If the determination of the drive 3 is triggered by opening the valve, the damping piston 8 can move back again, and the output shaft 11 with the drive plate 13 rotates back. Depending on the current Position of the wing 1 comes with the drive plate 13 in the system the driver 16, and the rotational movement of the output shaft 11 is on the actuating arm 4 transferred, whereby the wing 1 is guided into its closed position becomes. This is particularly advantageous for fire doors, which are in the event of danger must be closed, but the door is not always in normal operation must be opened against the closing force of the actuator 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 (9)

Freewheel device for driving a wing of a door or a window,
wherein the drive is integrated in the wing or in the frame, and wherein the drive has an actuating arm arranged on an output shaft of the drive, which is pivoted when the wing is actuated, and
wherein the actuating arm is arranged so as to be freely rotatable on the output shaft and has a driver which cooperates with a drive disk arranged in a rotationally fixed manner on the output shaft,
characterized in that the actuating arm (4) in the area around the output shaft (11) has mutually opposite bores (18) for inserting the driver (16), the driver (16) for optionally determining the direction of actuation of the drive (3) in a the holes (18) can be used. Freewheel device for a drive according to claim 1,
characterized in that the driving plate (13) for the symmetrical use of the drive (3) on the left and right wings (1) is semicircular. Freewheel device for a drive according to claim 2,
characterized in that the driver (16) cooperates with the driving disk (13) in such a way that the actuating arm (4) comes into contact with the driving disk (13) depending on the direction of rotation. Freewheel device for a drive according to claim 1,
characterized in that the driving plate (13) has depressions into which the driver (16) can engage in a form-fitting manner. Freewheel device for a drive according to claim 1,
characterized in that the drive (3) has a locking device which locks the output shaft (11). Freewheel device for a drive according to claim 5,
characterized in that when the output shaft (11) is fixed, the actuating arm (4) can be released from its movement when the wing (1) is pivoted in the closing direction. Freewheel device for a drive according to claim 5,
characterized in that the locking device is electrically controllable. Freewheel device for a drive according to claim 5,
characterized in that the locking device with valves influences the overcurrent channels of a hydraulic damping piston (8) of the drive (3) which interacts with the output shaft (11) in such a way that the output shaft (11) cannot pivot the actuating lever in the closing direction of the leaf (1) , Freewheel device for a drive according to claim 5,
characterized in that the locking device with valves influences the overflow channels of a hydraulic damping piston (8) of the drive (3) interacting with the output shaft (11) in such a way that the actuating arm (4), when the wing (1) is actuated in the opening direction, the Output shaft (11) can pivot.

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