EP3916176A1 - Actuating mechanism for a lifting wing or lifting sliding wing - Google Patents

Abstract

An actuating gear for a lifting or lifting sliding sash (3) comprises a rotatably mounted gear socket (14) into which a polygon (8) can be inserted and which is articulated to a toggle lever (16) which drives a displaceable drive rod (9), wherein the gear socket (14) can be rotated between an initial position with the wing (3) lowered into an end position with the wing (3) raised and the toggle lever (16) passes through a dead center when the gear socket (14) is rotated, at which the wing (3) is arranged in the maximally raised position, with a damping element (20) being arranged on the toggle lever (16) which, in the position of the toggle lever (16) at the dead point, rests against the polygon (8) in a clamping manner. As a result, impact noises in the area of the dead center when raising or lowering the sash can be avoided.

Description

The present invention relates to an operating gear for a lift or lift and slide sash, with a rotatably mounted gear socket into which a polygon can be inserted and which is articulated to a toggle lever that drives a sliding connecting rod, the gear socket between a starting position with the sash lowered in an end position can be rotated with the wing raised and the toggle lever passes through a dead point when the gear socket is turned, at which the wing is arranged in the maximally raised position.

the DE 20 2014 006 679 U1 discloses an actuating mechanism for moving a drive rod of a window or door sash, which can be raised via the drive rod. On a rotatably mounted crank piece, the actuating gear comprises a polygonal opening on which several recesses are formed for inserting pins. As a result, the polygon can be fixed in a clamping manner in the polygonal opening via the pegs in order to avoid disturbing noises during the transition from the lowered closed position to the raised sliding position. The construction of the actuating gear is, however, quite complicated and requires a large number of components. In addition, it is disadvantageous that the polygon has to be driven into the polygonal opening with considerable effort in order to provide sufficient clamping forces. In addition to the high expenditure of force during assembly, there is also the disadvantage that the pins are permanently compressed, so that the clamping forces decrease after a certain time and there can be play and annoying noises.

It is therefore the object of the present invention to provide an actuating gear for a lifting or lifting and sliding sash which avoids disruptive noises when lifting and lowering the sash with simple means and is easy to assemble.

This object is achieved with an actuating gear with the features of claim 1.

In the actuating gear according to the invention, a damping element is arranged between the toggle lever and the polygon, which in the position of the The toggle lever is jammed against the polygon at the dead point. As a result, the polygon can be easily mounted on the gear socket, since the preloading elements between the polygon and the opening on the gear socket can be dispensed with. Rather, a clamping is generated between the polygon and the toggle lever in the area of the dead center, that is, in the position in which the load change takes place. The dead center is the position of the wing in which it assumes the highest position when turning the gear socket from the starting position to the end position. The dead center is usually passed through at an angle between 6 ° and 20 ° before the end position of the gear socket, so that the wing is fixed in the raised position in a self-locking manner. Due to the tolerances between the individual transmission components and the high dead weight of the wing, this load change can lead to impact noises in the area of the dead center, which are avoided by the clamping in the area of the dead center via the damping element.

The damping element is preferably made from a softer material than the toggle lever, in particular from plastic or rubber. In this case, a groove or receptacle can be formed on the toggle lever, in which the damping element is fixed with a foot section, the damping element being formed protruding over a surface of the toggle lever, so that it is ensured that the damping element hits a contact surface of the polygon can be compressed to some extent.

For a stable fixation of the damping element on the toggle lever, the damping element can be designed in the form of a strip and extend in the longitudinal direction parallel to the axis of rotation of the polygon. As a result, a linear contact surface can be provided between the damping element and the polygon.

The damping element is preferably arranged in contact with the polygon over an angular range of less than 40 °, preferably in an angular range between 15 ° to 45 °, in particular 20 ° to 35 °. The gear socket can be pivoted from the starting position into the end position, for example by around 180 °, so that the damping element only rests against the polygon in a clamping manner in a partial area of the pivoting path. As a result, the material load on the damping element is reduced, since in the starting position with the wing lowered it does not rest against the polygon and is therefore also not stressed. The load on the damping element over a a small angular range of less than 40 ° leads to only a short-term load when raising and lowering the sash, so that disadvantageous flow effects due to permanent load are avoided.

In a preferred embodiment, the gearbox enjoyment is provided with an insertion opening in which the polygon is received essentially in a form-fitting or force-fitting manner. The polygon with its flat surfaces preferably rests directly on the inner surfaces of the insertion opening without the interposition of further elements.

The damping element can have a thickness between 1 mm and 4 mm in the radial direction in relation to a hinge axis of the toggle lever on the gear socket in order to be able to provide sufficient clamping forces and to protrude over the adjacent surface of the toggle lever.

For a stable fixation, the damping element can be glued or clamped to the receptacle or groove on the toggle lever.

Figur 1

eine perspektivische Ansicht eines erfindungsgemäßen Fensters oder einer Tür mit einem Hebe- oder Hebeschiebeflügel;

Figur 2

ein Betätigungsbeschlag mit einem erfindungsgemäßen Betätigungsgetriebe für den Hebeschiebeflügel der Figur 1 ;

Figuren 3A und 3B

zwei Ansichten des Betätigungsgetriebes in einer Ausgangsposition;

Figuren 4A und 4B

zwei Ansichten des Betätigungsgetriebes im Bereich des Totpunktes, und

Figuren 5A und 5B

zwei Ansichten des Betätigungsgetriebes in einer Endposition.

The invention is explained in more detail below using an exemplary embodiment with reference to the accompanying drawings. Show it:

Figure 1

a perspective view of a window or a door according to the invention with a lifting or lifting and sliding sash;

Figure 2

an actuating fitting with an actuating gear according to the invention for the lift and slide sash Figure 1 ;

Figures 3A and 3B

two views of the operating gear in an initial position;

Figures 4A and 4B

two views of the operating gear in the area of the dead center, and

Figures 5A and 5B

two views of the operating gear in an end position.

A window 1 or a door comprises a frame 2 which can be mounted in a building opening and in which a lever sliding sash 3 is arranged, which can be moved in a raised position along a running rail 12. In addition to the lift and slide sash 3, a fixed panel 4 is provided, with several fixed panels or a further lift and slide sash being able to be mounted on the frame 2.

The lift-and-slide sash 3 can be raised and lowered via an actuation gear which can be moved via a handle element 5 which is mounted on a frame of the lift-and-slide sash 3.

In Figure 2 the essential fittings for the lift & slide sash 3 are shown. The grip element 5 is connected to an actuating gear in a housing 7 via a polygon 8, in particular a square, and a drive rod 9 can be moved in a guide by rotating the grip element 5 and the actuating gear. By moving the drive rod 9, a support element is raised around a corner deflection 10 on two spaced-apart carriages 11, which are coupled to the drive rod 9 via a corner deflection 10. A coupling rod 13 is provided between the two carriages 11. The lift and slide sash 3 can be moved along a running rail 12 in the raised position via the two carriages 11.

The housing 7 of the actuating gear is covered by a cover 6. In the exemplary embodiment shown, the handle element 5 can be pivoted through approximately 180 ° for raising and lowering the lever sliding sash 3, the pivoting path also being only 90 ° or another angular range.

In the Figures 3A and 3B the operating gear is shown in a starting position with the lift & slide sash 3 lowered. The grip element 5 points upwards, and a gear socket 14, in which an insertion opening 15 is formed for the polygon 8, is in a starting position. The gear socket 14 is connected via an axis 17 to a toggle lever 16, which can be moved in a guide 19 on the housing 7 via a guide element 18. The guide 19 extends essentially linearly in the vertical direction, and the toggle lever 16 can thus be connected to the drive rod 9 via a coupling element in order to translate the rotary movement of the gear nut 14 into a linear movement of the drive rod 9.

The gear socket 14 is rotatably mounted in the housing 7, the axis of rotation also being the axis of rotation of the grip element 5 at the same time. If the handle element 5 is now according to the Figures 4A and 4B pivoted, the gear socket 14 rotates by the forces of the polygon 8, which is fixed positively or non-positively in the insertion opening 15.

In the Figures 4A and 4B the lift and slide sash 3 is arranged at a dead point, that is, at the position in which it has assumed the highest position. The toggle lever 16 was pivoted over the gear socket 14 and moved along the guide 19 to the highest position. As a result of the rotation of the toggle lever 16 relative to the gear socket 14, a damping element 20 arranged on the toggle lever 16 is in engagement with the polygon 8 in this position, which is inserted into the insertion opening 15. The damping element 20 consists of a compressible material, in particular plastic or rubber, which is made softer than the toggle lever 16. A groove or receptacle can be formed on the toggle lever 16, into which the damping element 20 is inserted with a foot section. In the unloaded position, the damping element 20 protrudes over an adjacent surface of the toggle lever 16 and can then be compressed upon contact with the polygon 8 in order to cause a clamping between the toggle lever 16 and the polygon in the area of the dead center.

A load change takes place in the area of the dead center, since the force of gravity of the lift & slide sash 3 acts on the drive rod 9 and thus the toggle lever 16. When the handle element 5 of the in the Figures 4A and 4B is rotated further to an end position that is shown in the Figures 5A and 5B is shown, the drive rod 9 lowers until the gear socket 14 strikes the housing 7 and the raised position of the lift and slide sash 3 is reached. While in the swivel range between the Figures 3A and 3B the gear socket 14 is loaded counterclockwise by the force of gravity of the lift and slide sash 3, the gear socket 14 is loaded in a clockwise direction after overwriting the dead center.

In order to avoid a stop noise in the area of the load change, the damping element 20 is compressed in an angular range around the dead center and ensures a clamping connection between the toggle lever 16 and the polygon. In the raised end position according to the Figures 5A and 5B the damping element 20 can still rest against the polygon 8. The angular range in which the damping element 20 is in contact with the polygon can for example be between 15 ° and 40 ° in relation to the pivoting range of the gear socket 14. The damping element 20 is thus only loaded over a certain angular range, while in the remaining area and in particular in the lowered starting position according to FIGS Figures 3A and 3B is unencumbered.

The damping element 20 can be designed in the form of a strip, it being possible for it to have a thickness in the radial direction in relation to the axis 17 between 1 mm and 4 mm. The damping element 20 can be clamped in the receptacle or groove on the toggle lever 16 or fixed with adhesive.

In the illustrated embodiment, the toggle lever 16 is angular. It is also possible to produce the toggle lever 16 with a different geometry.

List of reference symbols

1

window

2

Frame

3

Lift & slide sash

4th

Fixed field

5

Handle element

6th

cover

7th

casing

8th

Polygon

9

Connecting rod

10

Corner drive

11

Carriage

12th

Running rail

13th

Coupling rod

14th

Gear nut

15th

Insertion opening

16

Knee lever

17th

axis

18th

Guide element

19th

guide

20th

Damping element

Claims (10)

Actuating gear for a lifting or lifting sliding sash (3), with a rotatably mounted gear socket (14) into which a polygon (8) can be inserted and which is articulated to a toggle lever (16) which drives a displaceable drive rod (9), wherein the gear socket (14) can be rotated between an initial position with the wing (3) lowered into an end position with the wing (3) raised and the toggle lever (16) passes through a dead center when the gear socket (14) is rotated, at which the wing (3) is arranged in the maximally raised position, characterized in that a damping element (20) is arranged on the toggle lever (16) which, in the position of the toggle lever (16) at the dead point, rests against the polygon (8) in a clamping manner. Actuating gear according to Claim 1, characterized in that the damping element (20) is made of a softer material than the toggle lever (16), in particular a plastic or a rubber. Actuating gear according to Claim 1 or 2, characterized in that a groove or receptacle is formed on the toggle lever (16), into which the damping element (20) is inserted and from which the damping element protrudes. Actuating gear according to one of the preceding claims, characterized in that the damping element (20) is designed in the form of a strip and extends in the longitudinal direction parallel to an axis of rotation of the polygon (8). Actuating gear according to one of the preceding claims, characterized in that the damping element (20) rests against the polygon (8) over an angular range of less than 45 °, preferably in an angular range of 15 ° to 45 °. Actuating gear according to one of the preceding claims, characterized in that the gear socket (14) has an insertion opening (15) in which the polygon (8) is received essentially in a form-fitting or force-fitting manner. Actuating gear according to one of the preceding claims, characterized in that the damping element (20) has a thickness between 1 mm and 4 mm in the radial direction relative to a hinge axis (17) between the toggle lever (16) and the gear socket (14). Actuating gear according to one of the preceding claims, characterized in that the damping element is glued into a receptacle on the toggle lever (16). Actuating gear according to one of the preceding claims, characterized in that the damping element (20) is fixed in a clamping manner in a receptacle or groove of the toggle lever (16). Lifting or lifting and sliding window with a lifting or lifting and sliding sash (3) which can be moved via an actuating gear according to one of the preceding claims.

Images