DE102020113970A1 - Actuating gear for a lift or lift & slide sash - 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 center 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 must be driven into the polygon 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, when the toggle lever is in the position of the toggle at the dead point, rests against the polygon in a clamping manner. 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. 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 loading of the damping element over a small angular range of less than 40 ° leads to only a short-term loading when lifting and lowering the sash, so that disadvantageous flow effects due to permanent loading 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 lies with its flat surfaces preferably 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.

• 1 eine perspektivische Ansicht eines erfindungsgemäßen Fensters oder einer Tür mit einem Hebe- oder Hebeschiebeflügel;
• 2 ein Betätigungsbeschlag mit einem erfindungsgemäßen Betätigungsgetriebe für den Hebeschiebeflügel der 1;
• 3A und 3B zwei Ansichten des Betätigungsgetriebes in einer Ausgangsposition;
• 4A und 4B zwei Ansichten des Betätigungsgetriebes im Bereich des Totpunktes, und
• 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:

• 1 a perspective view of a window or a door according to the invention with a lifting or lifting and sliding sash;
• 2 an actuating fitting with an actuating gear according to the invention for the lift and slide sash 1 ;
• 3A and 3B two views of the operating gear in an initial position;
• 4A and 4B two views of the operating gear in the area of the dead center, and
• 5A and 5B two views of the operating gear in an end position.

A window 1 or a door comprises a frame that can be mounted in a building opening 2 , in which a lever sliding sash 3 is arranged, which is in a raised position along a running rail 12th is movable. Next to the lift & slide sash 3 is a fixed field 4th provided, with several fixed fields or a further lift and slide sash on the frame 2 can be mounted.

The lift & slide sash 3 can be raised and lowered via an operating gear, which is via a handle element 5 is movable, which is attached to a frame of the lifting and sliding wing 3 is mounted.

In 2 are the essential hardware components for the lift & slide sash 3 shown. The handle element 5 is about a polygon 8th , in particular a square, with an operating gear in a housing 7th connected, and by turning the handle element 5 and the operating gear may be a drive rod 9 be moved in a tour. By moving the connecting rod 9 is around a corner drive 10 a support element on two spaced carriages 11 raised via a corner drive 10 with the connecting rod 9 are coupled. Between the two carriages 11 is a coupling rod 13th intended. About the two carriages 11 is the lift & slide sash 3 along a track 12th can be moved in the raised position.

The case 7th the operating gear is via a cover 6th covered. The handle element 5 can in the illustrated embodiment to raise and lower the lever sliding sash 3 be pivoted by about 180 °, the pivoting path can also be only 90 ° or another angular range.

In the 3A and 3B the operating gear is in an initial position with the lift & slide sash lowered 3 shown. The handle element 5 points upwards, and a gear socket 14th , in which an insertion opening 15th for the polygon 8th is formed is in an initial position. The gear nut 14th is about an axis 17th with a knee lever 16 connected via a guide element 18th in a guided tour 19th on the housing 7th is movable. The leadership 19th extends essentially linearly in the vertical direction, and the toggle lever 16 can thus be connected to the connecting rod via a coupling element 9 be connected to the rotational movement of the geared nut 14th into a linear movement of the connecting rod 9 to translate.

The gear nut 14th is in the case 7th rotatably mounted, the axis of rotation also being the axis of rotation of the handle element 5 is. Becomes the handle element 5 now according to the 4A and 4B pivoted, the gear socket rotates 14th through the forces of the polygon 8th that is in the insertion opening 15th is fixed positively or non-positively.

In the 4A and 4B is the lift & slide sash 3 arranged at a dead point, that is, at the position in which it has assumed the highest position. The knee lever 16 became over the gear nut 14th pivoted and along the guide 19th moved to the highest position. By turning the knee lever 16 relative to the gear nut 14th is one on the knee lever 16 arranged damping element 20th in engagement with the polygon 8th in this position, the one in the insertion opening 15th is inserted. The damping element 20th consists of a compressible material, in particular plastic or rubber, which is made softer than the toggle lever 16 . On the knee lever 16 a groove or receptacle can be formed into which the damping element 20th is inserted with a foot section. The damping element is in the unloaded position 20th via an adjacent surface of the toggle 16 and can then on contact with the polygon 8th be compressed to a clamping between the toggle lever in the area of the dead center 16 and the polygon to effect.

A load change takes place in the area of the dead center because of the force of gravity of the lift & slide sash 3 on the connecting rod 9 and thus the knee lever 16 works.

When the handle element 5 from the in the 4A and 4B position shown is further rotated to an end position, which in the 5A and 5B shown, the drive rod descends 9 slightly down until the gear nut 14th on the housing 7th strikes and the raised position of the lift & slide sash 3 is reached. While in the swivel range between the 3A and 3B the gear nut 14th by the force of gravity of the lift & slide sash 3 is loaded counterclockwise, the gear socket is activated after the dead center has been overwritten 14th clockwise loaded.

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

The damping element 20th can be designed in the shape of a strip, with a thickness in the radial direction based on the axis 17th can be between 1 mm and 4 mm. The damping element 20th can be in the receptacle or groove on the toggle lever 16 be clamped or fixed with adhesive.

In the illustrated embodiment, the toggle lever is 16 formed angularly. It is also possible to use the knee 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

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 202014006679 U1 [0002]

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