EP4263981B1 - Actuating handle for rose-free windows and doors - Google Patents

Description

The invention relates to an actuating handle for building elements such as windows, doors and the like according to the preamble of claim 1.

Operating handles for operating windows and doors are available in numerous variants. They typically feature a driver that can move an operating device in a window or door sash, such as a window gear, via a handle. The driver can, for example, be designed as a square.

In addition to the rotary motion, opening and closing the window or door also requires a tensile or compressive force to be transmitted from the handle to the window or door sash. Consequently, the connection between the handle and the driver is designed so that, after installation, the two are axially and rotationally fixedly connected.

It is known to implement operating handles without rosettes on window and door sashes. However, this results in severely limited installation space.

Out of EP 1 683 933 B1 For example, an actuating handle is known in which a driver element can be anchored in the handle by means of a locking or clamping element by inserting the driver element into the handle.

EP 3 480 394 A1 Describes a device for moving a locking mechanism of a window or door by turning a pin on a handle. Two spring elements act together on a clamping element to apply two opposing spring forces.

One object of the invention is to provide an operating handle with a particularly convenient quick attachment of a driver to an operating device in a window or door sash, while simultaneously allowing the operating handle to be implemented without a rosette. It is preferred to simultaneously enable a locking function. The main features of the invention are set forth in the characterizing part of claim 1.

Embodiments are the subject of claims 2 to 11.

An actuating handle for building elements such as windows, doors, and the like is proposed, comprising at least one driver element that can be rotationally engaged with a handle, and a gear nut for integration into a window or door gear. The invention is characterized in that the gear nut has a recess extending through a rotational axis of the gear nut with at least one spring-loaded locking or clamping element pivotably mounted therein, wherein the locking or clamping element can be brought into force-, form-, and/or frictional engagement with the driver element, and in that the gear nut has radially inwardly directed locking recesses on its outer circumference for receiving locking elements. The clamping frame is spring-loaded by a single compression spring.

The actuating handle according to the invention provides for various functions for achieving the aforementioned object to be integrated directly into a gear nut. The gear nut is a component that is installed in a window gear or similar device to drive other elements there. It is preferred that the gear nut has external teeth that engage, for example, with a rack or other correspondingly toothed elements. If the gear nut is rotated by the driver element, the window gear is consequently set in motion. The gear nut can be fully integrated into the window gear and is thus located entirely within the respective window or door sash.

The gear nut has a recess that preferably extends completely through the gear nut in the axial direction. It is provided that the driver element protrudes through the recess in order to establish a rotationally fixed connection with the gear nut. For this purpose, at least one locking or clamping element is arranged in the recess and designed to establish a connection with the driver element by inserting it. This is preferably done as in EP 1 683 933 B1 This is achieved as described by inserting the driver element into the recess where it engages with the locking or clamping element, thereby connecting them. The locking or clamping element, thanks to its spring-loaded mounting, allows variable alignment when inserting the driver element, so that the movement of the driver element can be followed to engage both elements. At the same time, pulling out can be prevented by wedging the locking or clamping element with the driver element. By arranging the locking or clamping element within the gear nut, it is not necessary to provide a rosette or other elements that increase the installation space and protrude outwards beyond the door or window sash. Nevertheless, a secure connection can be created between the driver element and the window gear.

A locking function can also be achieved by having the gear nut with circumferential locking recesses. For example, spring-mounted locking means can be provided in the window gear, which are directed radially toward the gear nut by spring force and press against its circumference. The locking recesses can selectively achieve engagement between the locking means and the locking recesses, resulting in a locking force that is released again by applying sufficient torque to the driver element. The release force or torque can be adjusted by dimensioning the locking means, the locking recesses, and the spring force.

The integration of such a device for connecting the driver element to a window gear and the locking function into a gear nut leads to particularly simple, compact, and complete integration into the window or door sash. Separate connecting means or locking means outside the window or door sash are unnecessary, and the actuating handle according to the invention can be designed completely without a rosette. No modifications are necessary to any openings or cutouts in the window or door sash, as long as the gear nut does not exceed conventional, specified, and/or standardized dimensions.

In a preferred embodiment, the gear nut is divided into two axial halves, and the recess extends across both halves. The recess can be created by machining both halves and then joining them together. Dividing the recess into two halves also allows for more complex recess shapes. For example, steps or edges can be created in the recess against which the locking or clamping element can engage. The two halves can be axially screwed or glued together after the locking or clamping element has been inserted into the gear nut.

In an advantageous embodiment, the recess has an undercut for securing the locking or clamping element. The recess can have an undercut in both axial directions, so that the diameter of the recess increases abruptly at least at one point in the axially inward direction. Two such diameter jumps can be provided, which, spaced apart from one another and opposite one another, delimit the undercut and create a cavity for receiving the locking or clamping element. Preferably, both undercuts are then symmetrical and arranged symmetrically to one another.

According to the invention, the locking or clamping element has a clamping frame which has an opening complementary to a profile of the driver element for receiving and enclosing the driver element. The driver element can extend through the opening of the clamping frame. Due to the pivotable, spring-loaded mounting, the clamping frame can align itself obliquely to the driver element after the driver element has been inserted - depending on the size of the opening in the driver element. Particularly with sharp contours of the opening, the clamping frame can then wedge itself with the driver element if the direction of movement is reversed. The clamping frame can be designed such that if the reverse force is applied to move the driver element out, the clamping frame becomes even more oblique and the two elements thus wedge themselves even more tightly together.

According to the invention, the clamping frame is pivotable between a first position and a second position, wherein in the first position a surface normal of a plane spanned by the clamping frame runs obliquely to the axis of rotation and in the second position the surface normal runs parallel to the axis of rotation, wherein the clamping frame is spring-loaded by a single compression spring. The pivot axis can run perpendicular to the axis of rotation and thus extend transversely through a longitudinal axis of the driver element. For example, the pivot axis could be diagonal to a cross-sectional area of the driver element. This allows the clamping frame to wedge itself against two adjacent surfaces of the driver element if it is positioned at an angle. If the clamping frame is at least largely in the second position, it is possible to pass the driver element through. Due to the spring mounting, the clamping frame is preferably always pushed into the first position, but when the driver element is pushed through, the clamping frame is pushed towards the second position. Furthermore, the recess could have an inclined inner, end-face boundary surface against which the clamping frame can nestle to assume the first position. Consequently, when the driver element is not inserted, the gear nut is in a state that allows the driver element to be pushed in, in that the driver element always presses the clamping frame slightly against the spring force, so that the driver element can slide through the opening in the clamping frame. However, the clamping frame is already aligned as obliquely as possible at the start of the process. The appropriately designed inner frontal boundary surface ensures that the alignment remains in a neutral state.

In a further advantageous embodiment, a contour of the clamping frame is complementary to an inner contour of the recess. The clamping frame thus fills the inner contour of the recess. It can transmit torque if the contours are not circular. A slight difference in size between the contours of the clamping frame and the inner contour of the recess can allow sufficient pivoting of the clamping frame.

Furthermore, it is advantageous if the at least one locking or clamping element has two

clamping frames, between which the compression spring is arranged. The driver element can then be wedged with either of the two clamping frames, depending on the direction from which it is inserted into the gear nut. It is therefore suitable for left- and right-handed use immediately after installation. Checking the alignment and turning the gear nut before installation in a window gear is not necessary. When using two clamping frames, the recess preferably has two opposing and mirror-inverted, inclined inner, end-face boundary surfaces, against which one of the clamping frames can nestle to assume its first position. Installation from both directions leads to reliable wedging of the clamping frame and the driver element. The driver element can can still be inserted into the gear nut from both directions so that it does not have to be turned. A pin could be inserted from the outside through a cross hole in the gear nut at right angles to the axis of rotation in order to move one of the two clamping frames, which is later to be inactive, into a second position and to hold it there permanently to allow the driver element to slip through. The surface normal of a plane spanned by the held clamping frame is then parallel to the axis of rotation. The opening in the clamping frame is aligned with the driver element and does not oppose any axial movement of the driver element. Once the driver element has been inserted, this clamping frame only serves as a counter bearing for a compression spring located between the clamping frames.

In an advantageous embodiment, the gear nut has two transverse bores into which a pin can be inserted in order to hold one of the clamping frames vertically to the axis of rotation.

In a particularly advantageous embodiment, the gear nut has a cutout arranged next to the recess for the passage of a tool for moving the locking or clamping element against a spring force. The tool can be an elongated element that is inserted through the cutout into the gear nut and comes into contact with the locking or clamping element there. This can then be moved accordingly against the spring force in order to release the wedging with the driver element and consequently release the driver element again. The cutout can be significantly smaller than the recess. For example, it could have a width of only 3 mm or less in order to insert a suitable tool, such as a fine screwdriver or a fine wrench. The cutout could be arranged on the edge of the recess. A gap could be provided between the recess and the cutout, but this is not necessary.

In a further advantageous embodiment, the locking recesses are evenly spaced from one another in the circumferential direction. The distance between the locking recesses depends on the desired locking positions. It is conceivable to integrate at least three locking positions, spaced 90° or 45° apart, to signal the handle positions for a closed, fully open, or tilted window.

It is further advantageous if the locking recesses have a profile of a circular segment. In particular, spherical or spherical segment-shaped locking elements can be inserted into the They can be reliably engaged and released from the locking recesses. In addition to the spring force acting on the locking elements, the segment height or the center angle of the locking recess profile can also determine the force with which the locking element is held in the locking recess.

Fig. 1

eine erste Ausführungsform einer Getriebenuss in einer teilgeschnittenen Darstellung.

Fig. 2a und 2b

ein Fenstergetriebe mit darin angeordneter Getriebenuss.

Fig. 3a bis 3c

eine Betätigungshandhabe in einer Explosionsdarstellung (3a), einem Zusammenbau (3b) und beim Lösen des Handgriffs (3c) an einem Fensterflügel.

Fig. 4a und 4b

die Getriebenuss in einem Fenstergetriebe beim Lösen des Mitnehmerelements.

Fig. 5a und 5b

eine Explosionsdarstellung einer alternativen Variante der Getriebenuss und eine Schnittdarstellung (5b).

Fig. 6a bis 6d

einen Vorgang des Einsetzens eines Mitnehmerelements aus zwei Richtungen in eine Getriebenuss.

Fig. 7a

eine Getriebenuss beim Lösen eines Mitnehmerelements.

Fig. 7b und 7c

Einstecken eines Stifts in eine der Querbohrungen der Getriebenuss.

Further features, details, and advantages of the invention will become apparent from the wording of the claims and from the following description of exemplary embodiments with reference to the drawings. They show:

Fig. 1

a first embodiment of a gear nut in a partially sectioned view.

Fig. 2a and 2b

a window gear with a gear nut arranged inside.

Fig. 3a to 3c

an operating handle in an exploded view (3a), an assembly (3b) and when releasing the handle (3c) on a window sash.

Fig. 4a and 4b

the gear nut in a window gear when releasing the driver element.

Fig. 5a and 5b

an exploded view of an alternative variant of the gear nut and a sectional view (5b).

Fig. 6a to 6d

a process of inserting a driver element into a gear nut from two directions.

Fig. 7a

a gear nut when releasing a driver element.

Fig. 7b and 7c

Insert a pin into one of the cross holes of the gear nut.

Fig. 1 shows a gear nut 2 for integration into a window or door gear. The gear nut 2 has two axial halves 4 and 6, which, when assembled, form a body of the gear nut 2. It is designed to be rotated about a rotation axis 8. It has a recess 10 that extends completely through the gear nut 2 along the rotation axis 8. It widens inward from the end face.

After passing through roughly one-third of the axial thickness of the respective half 4 or 6, an undercut 12 is provided, which leads to the formation of a cavity 14. A clamping frame 16 is arranged in the cavity 14 and is urged in the direction of the undercut 12 by a compression spring 18.

As in Fig. 1 As can be seen, the undercut 12 is significantly more pronounced in a lower region of the drawing plane than in an upper region of the drawing plane. Here, an inclined plane 13 running transversely to the axis of rotation 8 is formed by an inner, end-face boundary surface 15. This plane is inclined in a first spatial direction by an angle α to an end face 20 of the gear nut 2, through which a driver element can be inserted into the cavity 14. The plane 13 is also inclined in a second spatial direction by a further angle β to the end face 20. A surface normal 17 of a plane spanned by the clamping frame 16 is therefore, when the clamping frame 16 rests on the inner, end-face boundary surface 15, inclined to the axis of rotation 8 in the relevant spatial directions. This is referred to above as the "first position". This is the position that the clamping frame 16 assumes in an unloaded state, since the compression spring 18 urges it against the inner, frontal boundary surface 15. In the Fig. 1 In the state shown, the surface normal 17 runs parallel to the rotation axis 8. This is referred to above as the "second position".

The clamping frame 16 has a contour 22 that corresponds to an inner contour 24. Contours 22 and 24 are flattened in some areas and, for example, have the shape of a square with rounded corners. This non-circular shape allows a torque to be transmitted between the respective axial half 4 or 6 and the clamping frame 16.

Furthermore, the clamping frame has a centrally arranged opening 26, the center of which runs approximately through the axis of rotation 8. The opening 26 is designed to complement a driver element (not shown here). The driver element can be pushed through the recess 10 into the gear nut 2 and through the clamping frame 16. Since the clamping frame 16 is inclined due to the spring force acting on it, it is slightly straightened when the driver element is pushed in, so that it approaches the second position. The opening 26 allows the driver element to be inserted and pushed through there. At rest, with the driver element pushed in, the clamping frame assumes the greatest possible angle to the end face 20, which depends on the driver element.

The opening 26 is preferably sharp-edged and thus designed to wedge into the driver element. Pulling out the driver element leads to even stronger wedging, so that the driver element remains in the recess 10 and can practically no longer be pulled out. By inserting an elongated tool into a cutout 28 adjacent to the recess 10, the clamping frame 16 can be brought from the outside into a position largely perpendicular to the rotation axis 8. This releases the edges of the opening 26 from the driver element and thus the wedging, and the driver element can be pulled out of the recess 10.

The gear nut 2 has a toothing 30 on its outer circumference, which serves to engage with a corresponding toothing of a gear element in a window or door gear. Furthermore, locking recesses 32 are provided, which can engage with locking elements (not shown here).

Fig. 2a shows a partial section of a window gear 34 into which the gear nut 2 is inserted. In Fig. 2B The window gear 34 is shown in an assembled state. Here, a push rod 36 is provided, which meshes with the teeth 30 of the gear nut 2. If a driver element is inserted into the recess 10, the gear nut 2 can be rotated, resulting in a linear pushing movement of the push rod 36.

In the radial direction, two locking elements 38 engage in locking recesses 32 of the gear nut 2, so that the gear nut 2 is held in predetermined rotational positions with a certain force. By applying sufficient torque, the locking elements 38 can be released from the locking recesses 32 and the gear nut 2 continues its rotation. The user of an actuating handle in which the gear nut 2 is integrated can thus detect haptically and acoustically when certain rotational positions have been reached. The locking elements 38 are designed, for example, as balls, each of which is pressed radially onto the gear nut 2 by a compression spring 40.

Fig. 3a shows an actuating handle 42 on a window sash 44 into which the window gear 34 can be inserted. The window sash 44 has, for example, a circular opening 46 through which the recess 10 can be reached. For example, a cover ring 48 is provided to cover an edge of the opening 46. A rosette is required neither for the connection to a driver element nor for the locking function. The user only sees the cover ring 48 as the closure.

A driver element 50 can be inserted from the outside through the end ring 48 into the opening 46 and thus into the recess 10 of the gear nut 2. A handle 52 can be connected to the driver element 50, so that actuation of the handle 52 drives the window gear 34.

In Fig. 3b the operating handle 42 is completely attached to the window sash 44. In Fig. 3c A tool 54 is visible with which the handle 52 can be removed from the driver element. Depending on the fastening principle, for example, using a grub screw, the tool 54 could also be used to fasten the handle 52.

Fig. 4a and 4b show the tool 54 in the cutout 28 in order to release the driver 50 from the gear nut 2. In this case, the clamping frame 16 is brought into a position substantially vertical to the rotation axis 8, ie the second position, so that the wedging with the driver element 50 is removed. This is shown in Fig. 4b visible.

Fig. 5a shows an exploded view of a gear nut 56, which is slightly modified compared to the gear nut 2 from the previous illustrations. Also shown are housing parts 58, which belong to the window gear 34 and accommodate the gear nut 56. This illustration differs from the previous illustrations in that two clamping frames 16 are provided here, which are spaced apart from one another in the axial direction and enclose the compression spring 18 between them. The recess 10 or the cavity 14 of the gear nut 56 is designed such that an inclined plane is formed on both front ends of the cavity 14. This allows a driver element 50 to be inserted and clamped from both front directions. Fig. 5b shows the slightly modified cavity 14. Here the two clamping frames 16 are each in their first position.

Fig. 6a to 6d show the fastening of the driver element 50 from both axial directions. How Fig. 6a and 6b show, the driver element 50 is clamped with the clamping frame 16 that is pierced first. The opposite clamping frame 16, which is at the rear in the insertion direction, is held in a second position by the pin 55, which is inserted into the corresponding transverse bore 53, in which the clamping frame 16 is arranged vertically to the rotation axis 8. Fig. 6c and 6d show the insertion of the driver element 50 from the other direction, the pin 55 then being arranged in the corresponding other transverse bore 53.

To release this connection, the tool 54 is used, which is placed in the corresponding free transverse bore 53 and rotated to move the clamping frame 16 into a second position in which it is aligned vertically to the axis of rotation 8. Fig. 7b and 7c show the insertion of the pin 55 into a transverse hole 53 in order to insert the driver element from the left ( Fig. 7c ) or from the right ( Fig. 7b ) to allow.

The invention is not limited to one of the embodiments described above, but can be modified in many ways.

List of reference symbols

2

Gear nut

4

axial half

6

axial half

8

axis of rotation

10

recess

12

undercut

13

inclined plane

14

cavity

15

inner, frontal boundary surface

16

Clamping frame (locking or clamping element)

17

Surface normal

18

compression spring

20

frontal surface

22

Contour (of the clamping frame)

24

Inner contour (of the cavity of the gear nut)

26

opening

28

Excerpt

30

Gearing

32

locking recess

34

Window gear

36

push rod

38

locking element

40

compression spring

42

operating handle

44

window sash

46

Opening (window sash)

48

closing ring

50

Driver element

52

handle

53

Cross hole

54

Tool

55

Pen

56

Gear nut

58

Housing part

α

angle

β

angle

Claims (11)

1. Actuating handle (42) for structural elements such as windows, doors and the like, having at least one driver element (50), which is able to be made to engage with a handle (52) in a rotationally conjoint manner, and having a transmission socket (2, 56) for integration into a window transmission or door transmission (34), wherein the transmission socket (2, 56) has a clearance (10), extending through an axis of rotation (8) of the transmission socket (2, 56), with at least one spring-loaded blocking or clamping element (16) mounted in a pivotable manner therein, wherein the blocking or clamping element (16) is able to be made to engage with the driver element (50) in a force-fitting, form-fitting and/or frictionally engaging manner, and in that, on its outer periphery, the transmission socket (2, 56) has radially inwardly directed latching depressions (32) for receiving latching elements (38), wherein the at least one blocking or clamping element (16) has a clamping frame (16), said clamping frame having an opening (26) for receiving and surrounding the driver element (50), which opening is complementary to a profile of the driver element (50), the clamping frame being pivotable between a first position and a second position, wherein, in the first position, a surface normal (17) to a plane spanned by the clamping frame (16) is oriented obliquely to the axis of rotation (8) and, in the second position, the surface normal (17) is oriented parallel to the axis of rotation (8), characterized in that the clamping frame (16) is subjected to spring-force loading by a single compression spring (18).
2. Actuating handle (42) according to Claim 1, characterized in that the transmission socket (2, 56) is subdivided into two axial halves (4, 6) and the clearance (10) extends over the two halves (4, 6).
3. Actuating handle (42) according to Claim 1 or 2, characterized in that the clearance (10) comprises an undercut (12) for securing the blocking or clamping element (16).
4. Actuating handle (42) according to Claim 1, characterized in that the clearance (10) has an oblique inner end-face delimiting surface (15) against which the clamping frame (16) can fit to assume the first position.
5. Actuating handle (42) according to one of Claims 1 to 4, characterized in that a contour (22) of the clamping frame (16) is configured to be complementary to an inner contour (24) of the clearance (10).
6. Actuating handle (42) according to one of Claims 1 to 5, characterized in that the at least one blocking or clamping element (16) has two clamping frames (16) between which the compression spring (18) is arranged.
7. Actuating handle (42) according to Claim 6, characterized in that the transmission socket (2, 56) has two transverse bores (53) into which a pin (55) is able to be plugged so as to hold in each case one of the clamping frames (16) vertically in relation to the axis of rotation (8).
8. Actuating handle (42) according to Claim 6, characterized in that the clearance (10) has two mutually oppositely situated inner end-face delimiting surfaces (15) which extend obliquely in a mirror-symmetrical manner and against which in each case one of the clamping frames (16) can fit to assume its first position.
9. Actuating handle (42) according to one of the preceding claims, characterized in that the transmission socket (2, 56) has a cutout (28) which is arranged next to the clearance (10) and which serves for passage of a tool (54) for moving the blocking or clamping element (16) counter to a spring force.
10. Actuating handle (42) according to one of the preceding claims, characterized in that the latching depressions (32) are spaced apart from one another uniformly in a circumferential direction.
11. Actuating handle (42) according to one of the preceding claims, characterized in that the latching depressions have a circular-segment profile.

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