Actuating handle for rose-free windows and doors

Abstract

The invention relates to an actuating handle for components such as windows, doors and the like, comprising at least one driver element, which can be brought into engagement with a handgrip for conjoint rotation, and a socket for integration in a window or door mechanism. The invention is characterised in that the socket has a recess extending through an axis of rotation of the socket with at least one spring-loaded blocking or clamping element pivotably mounted therein, which can be brought into force-fitting, form-fitting and / or frictional engagement with the driver, and in that the socket has on its outer periphery radially inwardly directed latching recesses to receive latching elements.

Description

[0001] The invention relates to an operating handle for building elements such as windows, doors and the like, according to the preamble of claim 1.

[0002] Operating handles for windows and doors are available in numerous variations. They typically feature a drive mechanism that, via a handle, can move an operating device within a window or door sash, such as a window mechanism. The drive mechanism can, for example, be designed as a square shaft.

[0003] In addition to the rotary motion, a pulling or pushing force must also be transmitted from the handle to the window or door sash to open and close the window or door. Therefore, the connection between the handle and the follower is designed so that both are axially and rotationally fixed to each other after installation.

[0004] It is known to implement operating handles without rosettes on a window and door sash. However, this leads to a severely limited installation space.

[0005] From EP 1 683 933 B1, for example, an operating handle is known in which a drive element can be anchored in the handle by means of a locking or clamping element by inserting the drive element into the handle.

[0006] EP 3 480 394 A1 describes a device for moving a locking mechanism of a window or door by turning a pin of a handle. Two spring elements act together on a clamping element to exert two opposing spring forces on it.

[0007] One object of the invention is to create an operating handle with a particularly convenient quick-release fastening of a driver to an actuating device in a window or door sash, whereby the operating handle can simultaneously be implemented without a rosette. It is preferred to also enable a locking function. The main features of the invention are specified in the characterizing part of claim 1.

[0008] Embodiments are the subject of claims 2 to 11.

[0009] An operating handle for building components such as windows, doors, and the like is proposed, comprising at least one drive element that can be engaged in a rotationally fixed manner with a handle, and a gear nut for integration into a window or door mechanism. The invention is characterized in that the gear nut has a recess extending through a pivot 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 engaged with the drive element by force, form, and / or friction, and in that the gear nut has radially inwardly directed detent recesses on its outer circumference for receiving detent elements. The clamping frame is spring-loaded by a single compression spring.

[0010] The actuating handle according to the invention provides for the integration of various functions for solving the aforementioned problem directly into a gear nut. The gear nut is a component that is installed in a window mechanism or similar device to drive other elements within it. It is preferred that the gear nut has external teeth that engage, for example, with a rack or other correspondingly toothed elements. When the gear nut is rotated by the drive element, the window mechanism is thereby set in motion. The gear nut can be fully integrated into the window mechanism and is thus located entirely within the respective window or door sash.

[0011] The gear nut has a recess that preferably extends completely through the gear nut in the axial direction. The drive element is designed to project through the recess to create a rotationally fixed connection with the gear nut. For this purpose, at least one locking or clamping element is arranged in the recess and configured to establish a connection with the drive element when it is inserted. Preferably, this is achieved as described in EP 1 683 933 B1, by inserting the drive element into the recess and engaging with the locking or clamping element, thus connecting them. The locking or clamping element, by virtue of its spring-loaded bearing, allows for variable alignment when inserting the drive element, enabling the movement of the drive element to engage with each other.Simultaneously, the locking or clamping element can be prevented from being pulled out by wedging it against the drive element. Because the locking or clamping element is positioned within the gearbox nut, it is not necessary to provide a rosette or other elements that would increase the installation space and protrude beyond the door or window sash. Nevertheless, a secure connection between the drive element and the window mechanism can be established.

[0012] A detent function can also be achieved by having circumferential detent recesses on the gear nut. For example, spring-loaded detent elements can be provided in the window mechanism, which are directed radially towards the gear nut by spring force and press against its circumference. The detent recesses allow for selective engagement between the detent elements and the detent recesses, resulting in a detent force that is released by applying sufficient torque to the drive element. The release force or torque can be adjusted by dimensioning the detent elements, the detent recesses, and the spring force.

[0013] Integrating such a device for connecting the drive element to a window mechanism and the locking function into a gear nut results in a particularly simple, compact, and complete integration into the window or door sash. Separate connecting or locking elements outside the window or door sash are unnecessary, and the operating handle according to the invention can be designed entirely without a rosette. No modifications to any openings or cutouts in the window or door sash are required, as long as the gear nut does not exceed usual, predetermined, and / or standardized dimensions.

[0014] In a preferred embodiment, the gear nut is divided into two axial halves, and the recess extends across both halves. The recess can be produced by machining both halves and then joining them together. Dividing the nut into two halves also allows for the production of more complex recess shapes. For example, steps or edges can be incorporated into the recess to provide a stop for the locking or clamping element. The two halves can be axially screwed or bonded together after the locking or clamping element has been inserted into the gear nut.

[0015] 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, such that the diameter of the recess increases abruptly at least at one point in the axial direction. Two such diameter steps can be provided, spaced apart from each other and opposite each other, defining the undercut and creating a cavity for receiving the locking or clamping element. Preferably, both undercuts are symmetrically designed and arranged symmetrically to each other.

[0016] According to the invention, the locking or clamping element comprises a clamping frame with an opening complementary to the profile of the drive element for receiving and enclosing the drive element. The drive element can extend through the opening of the clamping frame. Due to the pivotable, spring-loaded mounting, the clamping frame can align itself obliquely relative to the drive element after the drive element is inserted, depending on the size of the opening. Particularly with sharp contours of the opening, the clamping frame can then wedge itself against the drive element when the drive element is moved in the opposite direction. The clamping frame can be designed such that, with continued reverse force applied to move the drive element out, the clamping frame tilts even further, causing the two elements to wedge themselves even more tightly together.

[0017] 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, the clamping frame being spring-loaded by a single compression spring. The pivot axis can run perpendicular to the axis of rotation and consequently extend transversely through a longitudinal axis of the drive element. For example, the pivot axis could lie diagonally to a cross-sectional surface of the drive element. This allows the clamping frame to wedge itself against two adjacent surfaces of the drive element when it is tilted. If the clamping frame is at least largely in the second position, it is possible to insert the drive element.Due to the spring-loaded mounting, the clamping frame preferentially always moves into the first position. However, when the drive element is inserted, the clamping frame is forced towards the second position. Furthermore, the recess could have an angled inner, end-face boundary surface against which the clamping frame can conform to assume the first position. Consequently, when the drive element is not inserted, the gear nut is in a state that allows the drive element to be inserted. The drive element always presses the clamping frame slightly against the spring force, allowing the drive element to slide through the opening of the clamping frame. However, the clamping frame already exhibits an orientation at the beginning of the process that is as angled as possible. The appropriately designed inner, end-face boundary surface ensures that this orientation remains in a neutral state.

[0018] In a further advantageous embodiment, a contour of the clamping frame is designed to be complementary to an inner contour of the recess. The clamping frame thus fills the inner contour of the recess. It can transmit torque even 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 allows sufficient pivoting of the clamping frame. Furthermore, it is advantageous if at least one locking or clamping element has two

[0019] The clamping frame has a compression spring positioned between it. The drive element can then be wedged into either of the two clamping frames, depending on the direction from which it is inserted into the gear nut. Consequently, it is suitable for both left- and right-hand rotation immediately after installation. Checking the alignment and reversing the gear nut before installation in a window mechanism is unnecessary. When using two clamping frames, the recess preferably has two opposing, mirror-image, angled inner end faces, against which each of the clamping frames can engage to assume its initial position. Installation from either direction ensures reliable wedging of the clamping frame and the drive element. Furthermore, the drive element can be inserted into the gear nut from either direction, eliminating the need to rotate it.A pin could be inserted from the outside, perpendicular to the axis of rotation, through a transverse bore into the gear nut to move one of the two clamping frames, which will later be inactive, into a second position, allowing the drive element to slide through, and to hold it there permanently. The surface normal of a plane spanned by the held clamping frame is then parallel to the axis of rotation. The opening of the clamping frame is aligned with the drive element and does not oppose any axial movement of the drive element. After the drive element has been inserted, this clamping frame serves only as a counter-bearing for a compression spring located between the clamping frames.

[0020] In an advantageous embodiment, the gear nut has two transverse bores into which a pin can be inserted to hold one of the clamping frames vertically to the axis of rotation.

[0021] In a particularly advantageous embodiment, the gear nut has a cutout arranged next to the recess for guiding a tool to move the locking or clamping element against a spring force. The tool can be an elongated element that is inserted into the gear nut through the cutout and comes to rest against the locking or clamping element. This tool can then be moved against the spring force to release the wedge with the drive element and consequently free the drive element. The cutout can be significantly smaller than the recess. For example, it could have a width of only 3 mm or less to accommodate a suitable tool, such as a small screwdriver or wrench. The cutout could be located at the edge of the recess.A gap could be provided between the recess and the cutout, but this is not necessary.

[0022] In a further advantageous embodiment, the detent recesses are evenly spaced from one another in the circumferential direction. The distance between the detent recesses depends on the desired detent positions. It is conceivable to integrate at least three detent positions, spaced 90° and 45° apart, to indicate the handle positions for a closed, fully open, or tilted window.

[0023] It is further advantageous if the detent recesses have a circular segment profile. In particular, spherical or spherical segment-shaped detent elements can engage in the detent recesses and be reliably released from them. In addition to a spring force acting on the detent elements, the segment height or the central angle of the detent profile can also determine the force with which the detent element is held in the detent recess.

[0024] 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. The drawings show: Fig. 1 shows a first embodiment of a gear nut in a partially cutaway view. Figs. 2a and 2 show a window gear mechanism with a gear nut arranged therein. Figs. 3a to 3c show an operating handle in an exploded view (3a), an assembly (3b), and when the handle (3c) is released on a window sash. Figs. 4a and 4b show the gear nut in a window gear mechanism when the drive element is released. Figs. 5a and 5 show an exploded view of an alternative variant of the gear nut and a sectional view (5b). Figs. 6a to 6 show the process of inserting a drive element into a gear nut from two directions. Fig. 7a shows a gear nut when a drive element is released. Figs. 7b and 7c show inserting a pin into one of the transverse bores of the gear nut.

[0025] Fig. 1 Figure 2 shows a gear nut 2 for integration into a window or door mechanism. The gear nut 2 has two axial halves 4 and 6, which together form a body of the gear nut 2. It is designed to be rotated about an axis of rotation 8. It has a recess 10 that extends completely through the gear nut 2 along the axis of rotation 8. It widens inwards from the end face.

[0026] After passing through approximately 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, which is pressed towards the undercut 12 by a compression spring 18.

[0027] 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. Here, an inclined plane 13, extending 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 at an angle α to an end face 20 of the gear nut 2, through which a drive element can be inserted into the cavity 14. The plane 13 is also inclined in a second spatial direction at a further angle β to the end face 20. Consequently, when the clamping frame 16 rests on the inner, end-face boundary surface 15, a surface normal 17 of a plane spanned by the clamping frame 16 is inclined in the respective spatial directions to the axis of rotation 8. This is referred to above as the "first position".This is the position that the clamping frame 16 occupies in an unloaded state, as the compression spring 18 presses it against the inner, end-face boundary surface 15. In the Fig. 1 In the state shown, the surface normal 17 runs parallel to the axis of rotation 8. This is referred to above as the "second position".

[0028] The clamping frame 16 has a contour 22 that corresponds to an inner contour 24. The contours 22 and 24 are partially flattened 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.

[0029] Furthermore, the clamping frame has a centrally located opening 26, the center of which runs approximately through the axis of rotation 8. The opening 26 is designed to correspond to a drive element (not shown here). The drive 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 upon it, it is slightly straightened when the drive element is pushed in, so that it approaches the second position. The opening 26 allows the drive element to be inserted and pushed through. At rest, with the drive element inserted, the clamping frame assumes the largest possible angle to the end face 20, which depends on the drive element.

[0030] The opening 26 is preferably designed with sharp edges and is thus configured to wedge itself against the drive element. Pulling out the drive element results in an even stronger wedging action, so that the drive 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 axis of rotation 8. This releases the edges of the opening 26 from the drive element and thus the wedging action, and the drive element can then be pulled out of the recess 10.

[0031] The gear nut 2 has a toothed section 30 on its outer circumference, which serves to engage with a corresponding toothed section of a gear element in a window or door mechanism. Furthermore, detent recesses 32 are provided which can be used with detent elements (not shown here) to engage the gear.

[0032] Fig. 2a shows a partial section of a window gear 34 into which the gear nut 2 is inserted. Fig. 2B The window gear 34 is shown in an assembled state. A push rod 36 is provided here, which meshes with the teeth 30 of the gear nut 2. If a drive element is inserted in the recess 10, the gear nut 2 can be rotated, resulting in a linear push motion of the push rod 36.

[0033] In a radial direction, two detent elements 38 engage in detent recesses 32 of the gear nut 2, holding the gear nut 2 in predetermined rotational positions with a certain force. By applying sufficient torque, the detent elements 38 can be released from the detent recesses 32, and the gear nut 2 continues its rotation. The user of an operating handle in which the gear nut 2 is integrated can thus perceive the attainment of specific rotational positions both haptically and audibly. The detent elements 38 are, for example, designed as spheres, each of which is pressed radially onto the gear nut 2 by a compression spring 40.

[0034] Fig. 3a Figure 1 shows an operating handle 42 on a window sash 44 into which the window mechanism 34 can be inserted. The window sash 44 has an exemplary circular opening 46 through which the recess 10 is accessible. An end ring 48 is shown as an example for covering one edge of the opening 46. A rosette is not required for either the connection to a drive element or for the locking function. The user sees only the end ring 48 as the finishing element.

[0035] A drive 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 drive element 50, so that actuating the handle 52 drives the window gear 34.

[0036] In Fig. 3b The operating handle 42 is fully attached to the window sash 44. Fig. 3c A tool 54 is shown, with which the handle 52 can be removed from the drive element. Depending on the design of the fastening principle, for example by means of a setscrew, the tool 54 could also be used to fasten the handle 52.

[0037] Fig. 4a und 4b The tool 54 is shown in the cutout 28 for releasing the drive element 50 from the gear nut 2. Here, the clamping frame 16 is moved into a position substantially perpendicular to the axis of rotation 8, i.e., the second position, so that the wedging with the drive element 50 is released. This is shown in Fig. 4b visible.

[0038] Fig. 5a Figure 1 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 belonging to the window gear 34, which accommodate the gear nut 56. This illustration differs from the previous illustrations in that two clamping frames 16 are provided, spaced apart axially and enclosing the compression spring 18 between them. The recess 10, or cavity 14, of the gear nut 56 is designed such that an inclined plane is formed at both end faces of the cavity 14. This allows a drive element 50 to be inserted and clamped from either end face. Fig. 5b shows the slightly modified cavity 14. Here, the two clamping frames 16 are each in their first position.

[0039] Fig. 6a bis 6d The figures show the fastening of the drive element 50 from both axial directions. How Fig. 6a und 6b As shown, the drive element 50 is clamped to the clamping frame 16 that is pierced first. The opposite clamping frame 16, located further back 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 axis of rotation 8. Fig. 6c und 6d The figures show the insertion of the drive element 50 from the other direction, with the pin 55 then being arranged in the corresponding other transverse bore 53.

[0040] 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 und 7c Figure 1 shows the insertion of the pin 55 into a transverse bore 53 in order to insert the drive element from the left ( Fig. 7c ) or from the right ( Fig. 7b to allow.

[0041] The invention is not limited to one of the embodiments described above, but can be modified in many ways. Bezugszeichenliste

[0042] 2 Gear nut 4 Axial half 6 Axial half 8 Pivot axis 10 Recess 12 Undercut 13 Inclined plane 14 Cavity 15 Inner, end-face boundary surface 16 Clamping frame (locking or clamping element) 17 Surface normal 18 Compression spring 20 End face 22 Contour (of the clamping frame) 24 Inner contour (of the gear nut cavity) 26 Opening 28 Cutout 30 Toothing 32 Detent recess 34 Window gear 36 Push rod 38 Detent element 40 Compression spring 42 Operating handle 44 Window sash 46 Opening (window sash) 48 End ring 50 Drive element 52 Handle 53 Transverse bore 54 Tool 55 Pin 56 Gear nut 58 Housing part α Angle β angle

Claims

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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