EP1493890B1 - Drive for a window panel or a flap - Google Patents

Abstract

A large area door or window is opened and closed by a motor-driven actuator or hand-crank mechanism that further operates a locking mechanism. The door or window is coupled to a pushrod (1) that slides along a guide. The drive mechanism incorporates a differential drive stage.

Description

The invention relates to a drive according to the preamble of claim 1.

From EP 0 600 105 A1 discloses a chain drive for tiltable wings of windows or doors is known in which the free end of a Ausstellkette is attached to a frame of the housed in a box-shaped, elongated housing chain drive and the other frame, in particular the sash. Furthermore, a motor, transmission and chain drive member existing, reversible drive with the Ausstellkette, which is accommodated in a loop-shaped guide.

The arrangement has no possibility of locking the wing. Especially with large wings this could be pressed by wind pressure and thus not close tight.

From EP 0 6 44 074 A1 a device for moving a sliding door arranged in a vehicle parallel to a wall of the vehicle and suitable for opening and closing an opening in the wall is known. The device comprises a flexible belt, the two ends of which are connected to the sliding door, and a drive device connected to the vehicle, which is adapted to exert a pulling force on the belt. The drive device has a differential with an output for actuation and another output for locking the sliding door.

A disadvantage of this device is a complex construction with a mechanical lock necessary to ensure that the lock is then operable when the sliding leaf is in its closed position.

The invention has for its object to form a drive for the operation of a arranged on a wing or on a surrounding frame latch, which is simple in construction and ensures a secure locking and unlocking.

The object is solved by the features of claim 1.

The subclaims form advantageous embodiments of the invention.

The wings of windows, especially skylights, are usually not directly operable due to their high mounting, but are operated either by hand lever and linkage or via mostly electric motor drives. Especially with large wings a lock should be provided, since the wings could otherwise be pressed by wind pressure or not close tight. It is also on manual window sash common technique that in the fold between the wing and the frame slidably mounted on the wing locking elements are arranged, which cooperate with arranged on the frame bolt receptacles.

The drive according to the invention can cooperate with such a bar lock, wherein the rotational movement can be converted into a linear movement via a rack, and it is possible to use the drive for displaceably arranged on the wing or on the frame locks. The output for the lock can also be, for example, a square, which interacts with locking elements of the wing instead of a manual actuating handle.

The drive is designed so that at the beginning of the opening process or at the end of the closing operation of the wing, the lock is actuated. The arranged on the frame drive has a flexible actuator, such as a chain, which is fixed to the wing via a console. The arrangement can also be reversed, wherein the drive is arranged on the wing. In order to additionally use the drive for locking and unlocking, the drive has a differential.

If the wing is in the locked closed position, a torque is introduced into the differential by operating the drive to open the wing. The differential has two outputs, one output for actuating the lock and the other for the actuator for pivoting the blade. In the locked state, the output of the differential, which drives the actuator, blocked because the wing can not be pivoted. Therefore, upon actuation of the opening blade driver, the torque introduced into the differential is fully directed to the output of the latch, thereby unlocking the wing. After unlocking the output of the lock is blocked because it rests against a stop, whereby the torque introduced into the differential acts on the output for the actuating element, and the actuating element for opening of the wing is pushed out of the drive.
The output for the lock has an effective at least in the locking direction brake through which the actuator is retracted when closing the wing first. By the operation of the drive to close the wing, the torque introduced into the differential, caused by this brake, first at the output for the actuator effective. If the wing at the end of the closing movement of the frame, this output is blocked and the entire torque is delivered to the output for the lock, whereby the brake is overcome and the lock is guided to the locked position. The braking torque of the brake can be adjustable or regulated. The drive can furthermore have a control or regulation which determines the moments of the power take-offs or of the brake as a function of blade parameters, such as, for example, blade weight and opening angle.

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

Fig. 1

eine Prinzipskizze eines Antriebs mit einem Differential zur Drehmomentverteilung;

Fig. 2a

ein Ausführungsbeispiel des Antriebs nach Fig. 1 mit Sicht auf das Betätigungselement;

Fig. 2b

den Antrieb nach Fig. 2a in der Draufsicht;

Fig. 3a

eine weitere Ausbildung des Antriebs nach Fig. 1 mit Sicht auf das Betätigungselement;

Fig. 3b

den Antrieb nach Fig. 3a in der Draufsicht.

Showing:

Fig. 1

a schematic diagram of a drive with a differential for torque distribution;

Fig. 2a

an embodiment of the drive of Figure 1 with a view of the actuating element.

Fig. 2b

the drive of Figure 2a in plan view.

Fig. 3a

a further embodiment of the drive of Figure 1 with a view of the actuating element.

Fig. 3b

the drive of Fig. 3a in plan view.

In the figures, a drive 1 for a wing of a window or a flap, with a drive element 2, with a differential 5 and a brake 6 is shown. The differential 5 has an output A for the actuation of an actuating element 3 and an output B for the actuation of the Verrieglungselements 4, on, wherein the output B cooperates with a brake 6. FIG. 1 shows the operating principle. The drive element 2 may be a motor, but also a hand lever or a hand crank, wherein the drive element 2 may be arranged in or outside of the drive 1.

The drive 1 has a displaceably movable actuating element 3 which cooperates with the drive element 2 and is pushed out of the drive 1 to open the wing and is pulled into the drive to close the wing. The actuating element 3 can be formed as a chain or as a flexible element, for example as a flat band or as a rope with a stiffened initial region. The drive 1 can be arranged on a stationary frame of the wing pivotably fixed to the frame, the actuating element 3 of the drive 1 cooperating with the wing via a bracket. However, it is also the reverse arrangement possible, wherein the drive 1 on the wing and the console, on which the actuating element 3 is supported, is arranged on the frame.

The following description of the functional sequence is based on a closed and locked position of the wing. By the actuation of the drive element 2 of the drive 1 in the direction of rotation, which causes an opening of the wing, a torque is introduced into the differential 5, which is transmitted to the outputs A and B of the differential. The output A acts on the actuating element 3 for pivoting the wing, wherein the wing is still locked, and the actuating element 3 can not be pushed out of the drive 1 for pivoting the wing, so that the output A is blocked. Thus, the entire torque at the output B of the differential 5 is available.

The output B cooperates with a brake 6, the effect of which will be explained below in the description of the closing operation. The brake 6 can be designed so that it has no effect during the opening process, because the brake 6 is not required for the opening process. Furthermore, a control or regulation may be present, which with sensors the required torque for at least one of the outputs A, B, or which determine the required braking torque of the brake 6, and controls or regulates a corresponding torque distribution.

The torque at the output B actuates a locking element 4, which cooperates with a arranged on the wing or on the frame latch and unlocks the wing. In FIGS. 2a and 2b, the actuating element 4 is designed, for example, as a square, which can be rotated in the direction of the arrow. The square can, with an arrangement of the drive 1 on the wing, be arranged so that it engages in place of a manual actuating handle provided in a wing locking means. However, the actuator 4 may also, as shown in Figures 3a and 3b, be designed as a sliding locking element 4, wherein an implementation of the rotational movement at the output B of the differential 5 in a linear movement, for example by a rack, can be done, including a toothing can be arranged on the displaceable locking element 4. The displaceable locking element 4 cooperates with a locking device arranged on the wing or on the frame and unlocks the wing.

The locking element 4 is blocked by the required for unlocking rotation or displacement movement by a stop, whereby the output B of the differential 5 is blocked. The torque applied to the differential can now cause a rotational movement on the output A, since the wing is unlocked and the actuator 3 can be pushed out of the drive 1 for pivoting the wing.

To close the wing, the drive element 2 is actuated in a correspondingly opposite rotational movement. The torque acts on both drives A, B, since the actuating element 3 and the locking element 4 can be actuated. However, since first the wing must be guided in its closed position, before the locking of the wing, the brake 6 inhibits the Output B, whereby the torque of the drive element 2 is present at the output A and the actuator 3 actuates the wing in the closing direction. If the wing reaches its closed position, the actuating element 3, and thus the output A, is blocked. The torque now acts completely on the output B, whereby the braking force of the brake 6 is overcome and the locking element 4 is turned back or pushed back and the locking device of the wing is locked.

List of reference characters

1

drive

2

driving element

3

actuator

4

locking element

5

differential

6

brake

A

Output actuator

B

Output locking element

C

Displacement direction locking element

Claims (3)

1. Drive for a casement/leaf of a window or of a shutter, having a drive element and having an actuating element which can be displaced in a guide of the drive and is intended for pivoting the casement/leaf between a closed position and an o pen position, characterized in that, for controlling the casement/leaf movement and a locking device of the casement/leaf, the drive (1) has a differential (5), with an output (A) and an output (B), the output (A) interacting with the actuating element (3) in order to pivot the casement/leaf and the output (B) interacting with a locking element (4) in order to actuate the locking device of the casement/leaf, and the output (B) interacting with a brake (6) which inhibits the output (B) such that it can be re gulated or adjusted at least in one movement direction.
2. Drive according to Claim 1, characterized in that the brake (6) is inoperative during actuating of the drive (1) for the purpose of opening the casement/leaf.
3. Drive according to Claim 1, characterized in that the locking element (4) interacts with the locking device of the casement/leaf instead of a mechanical actuating handle.

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