Handle for driving a connecting rod fitting

Abstract

A handle (3) for driving a connecting rod fitting (2) has a rosette bushing (11) with a recess (17) arranged over a partial area of ​​its circumference. A drive pin (5) connecting a plug-in handle (4) to the connecting rod fitting (2) is arranged within the rosette bushing (11). A pin (18) is guided through the recess (17) of the rosette bushing (11) and pressed into the drive pin (5). The handle (3) is particularly compact and easy to install.

Description

[0001] The invention relates to a handle for driving a drive rod fitting of a sash pivotable against a frame, with a plug-in handle, with a drive pin, with a rosette bushing enclosing the drive pin between two end sections, wherein one of the end sections of the drive pin projects beyond the rosette bushing for rotationally fixed coupling with a nut of a drive gear of the drive rod fitting and the other of the end sections is coupled to the plug-in handle.

[0002] Such a handle is known, for example, from EP 3 141 677 A1. In this handle, a sleeve with a holding part is screwed to the wing. The holding part is connected to the sleeve in a rotationally fixed and axially immovable manner. Screws for screwing the holding part to the wing are arranged transversely to the axis of the drive mandrel. A ring element is held axially immovably in the sleeve and is fastened to the drive mandrel by means of a press-in pin. The ring element requires a large installation space in the wing.

[0003] WO 2022 / 029344 A1 discloses a handle in which a sleeve is screwed between a ring element and a plate. The plate requires a large amount of space in the sash. However, the drive pin is pressed into the plug-in handle, resulting in complex assembly. Furthermore, the plug-in handle cannot be separated from the drive pin.

[0004] DE 296 16 292 U1 discloses a rotary actuator in which an outer guide sleeve has an inner bead. The bead is engaged behind a spring-loaded pin of an actuating shaft. However, engaging behind the guide sleeve requires a large amount of space in the leaf.

[0005] The invention is based on the problem of developing a handle of the type mentioned at the outset in such a way that it is particularly compact and easy to assemble.

[0006] This problem is solved according to the invention in that the rosette bushing has a recess arranged transversely to the axis of the drive mandrel and in that a pin protrudes from the drive mandrel and projects into the recess.

[0007] This design allows the pin to engage the rosette bushing in a central section, enabling a particularly compact handle design. The invention eliminates the need for a space-consuming grip behind the rosette bushing. Furthermore, the drive spindle, pin, and rosette bushing can be easily prefabricated into a pre-assembled unit and installed on the door leaf. The end sections of the drive spindle allow for the coupling of individually designed plug-in handles and drive gears. The unit consisting of the rosette bushing, pin, and drive spindle can be prepared as a standardized component.

[0008] The recess could, for example, be arranged as a groove in the rosette bushing. However, according to another advantageous development of the invention, the pin is accessible from outside the rosette bushing if the recess is designed as an opening extending over a portion of the circumference of the rosette bushing. This design allows the pin to be installed through the recess after the drive pin has been inserted into the rosette bushing. The rosette bushing, pin, and drive pin thus form a pre-assembled unit. This unit can be easily assembled to suit the type and dimensions of the sash. The pin is preferably designed as a dowel pin and pressed into the drive pin.

[0009] According to another advantageous development of the invention, the attachment of the rosette bushing to the sash is particularly simple if the rosette bushing has a circumferential flange with a large-diameter section and an adjoining small-diameter section. This design allows the small-diameter section to be inserted into a hole usually arranged in the sash. When installed, the flange rests on the outside of the sash.

[0010] According to another advantageous development of the invention, the recess is reliably protected from contamination in the assembled state if the recess is arranged in the small-diameter section of the rosette bushing. In this area, the rosette bushing is completely radially enclosed by the wing. This design therefore results in a particularly compact handle structure.

[0011] According to another advantageous embodiment of the invention, limiting the rotation of the plug-in handle can be easily achieved if the recess extends beyond the adjustment range of the plug-in handle. This design allows the ends of the elongated hole to act as stops for the pin.

[0012] According to another advantageous development of the invention, the rosette exhibits high stability if the small-diameter section of the rosette bushing has an outwardly projecting web, and if the web is arranged parallel to the rotational axis of the drive spindle. Furthermore, if the bore in the leaf is designed accordingly, the web can be designed as an anti-rotation device.

[0013] According to another advantageous development of the invention, the mounting of the handle on the wing is particularly simple if the flange of the rosette bushing has holes for the passage of fastening screws.

[0014] The plug-in handle could, for example, be screwed to the drive pin using a stud. According to another advantageous development of the invention, the plug-in handle has a snap-in connection on the drive pin to further simplify assembly of the handle.

[0015] According to another advantageous development of the invention, further simplifying the assembly of the handle is achieved if the drive pin has a spring-loaded, protruding locking pin and if the plug-in handle has a ramp that can be moved against the locking pin when plugged in. A further advantage of this design is that the plug-in handle can only be mounted in the intended rotational position, in which the ramp is opposite the locking pin. Incorrect assembly is avoided thanks to the invention. Preferably, the locking pin also has a ramp or bevel opposite the ramp of the plug-in handle.

[0016] According to another advantageous development of the invention, disassembly of the plug-in handle is particularly easy if the plug-in handle has a bore leading up to the locking bolt.

[0017] According to another advantageous development of the invention, play between the components of the handle can be avoided if a compression spring preloads the plug-in handle away from the rosette socket.

[0018] According to another advantageous development of the invention, rubbing of the compression spring on the rosette bushing can be easily avoided if a locking bushing is arranged between the rosette bushing and the compression spring. This design allows the locking bushing and rosette bushing to be made of different materials, depending on the specific application. The rosette bushing can be made of plastic, for example, while the locking bushing is preferably made of abrasion-resistant steel. To prevent rattling noises, the locking bushing and rosette bushing preferably have interlocking claws.

[0019] According to another advantageous development of the invention, the handle has a smooth surface when the plug-in handle projects beyond the flange of the rosette socket with an apron.

[0020] According to another advantageous development of the invention, operating forces during use of the handle are reliably introduced into the sash via the rosette bushing if the rosette bushing has a shoulder for supporting the pin in the pulling direction of the plug-in handle.

[0021] The invention permits numerous embodiments. To further clarify its basic principle, one of them is shown in the drawing and is described below. This shows in Fig.1 a section of a wing and a drive rod fitting with a handle, Fig.2 greatly enlarged a sectional view through the handle from Figure 1 along the line II - II, Fig.3 a sectional view through the handle from Figure 2 along the line III - III, Fig.4 a perspective view of a rosette bushing of the handle, Fig.5 an exploded view of the handle.

[0022] Figure 1shows a partial area of ​​a sash 1 of a window, a French window or the like with a drive rod fitting 2 and a handle 3 for driving the drive rod fitting 2. The handle 3 has a plug-in handle 4 which can be pivoted about an axis arranged perpendicular to the plane of the drawing.

[0023] Figure 2 shows a sectional view through the handle 3 from Figure 1with adjacent areas of the sash 1 and the espagnolette fitting 2. The handle 3 has a non-circular drive pin 5, designed as a square pin in the embodiment shown, which is connected by an end section 8 to the plug-in handle 4 and by a further end section 9 to a nut 6 of a drive gear 7 of the espagnolette fitting 2. In a central section 8 located between the end sections 8, 9, the handle 3 has a rosette bushing 11 arranged concentrically to the drive pin 5. The rosette bushing 11 is screwed to the sash 1 using two fastening screws 12.

[0024] The rosette bushing 11 has a small-diameter section 13, which is inserted into a correspondingly designed bore 14 in the sash 1, and a flange 15 resting on the sash 1 with bores 16 for the passage of the fastening screws 12. The small-diameter section 13 of the rosette bushing 11 has a recess 17. A pin 18 penetrates the recess 17 and is pressed into the drive mandrel 5. An apron 19 of the plug-in handle 4 encloses the flange 15 of the rosette bushing 11 and is guided up to the top of the sash 1.

[0025] The plug-in handle 4 is connected to the drive mandrel 5 in a rotationally fixed manner via a locking connection 20 and is supported on a locking bushing 22 via a compression spring 21. The locking bushing 22 and the flange 15 have intermeshing claws 23. The locking connection 20 has a locking bolt 25 that is spring-loaded from the drive mandrel 5 into a bore 24 in the plug-in handle 4. A spring element 26 for preloading the locking bolt 25 is supported by a plug 27 in the drive mandrel 5. The plug-in handle 4 has a ramp 28 on an inner side facing the drive mandrel 5. When the plug-in handle 4 is plugged onto the drive mandrel 5, the ramp 28 presses the locking bolt 25 back into the drive mandrel 5. The bolt then snaps into the bore 24 in the plug-in handle 4, as shown.

[0026] Figure 3 shows a sectional view along the line III - III from Figure 2by the handle 3 with adjacent areas of the sash 1, so that the recess 17 extends over a portion of the circumference of the rosette bushing 11 corresponding to the travel of the plug-in handle 4. A web 29 arranged parallel to the axis of the rosette bushing 11 forms an anti-twist device in the sash 1.

[0027] Figure 4 shows a perspective view of the rosette bushing 11 with the small diameter section 17 and the flange 15. The rosette bushing 11 also has a shoulder 30 on its inside, on which the Figure 3 shown, which is pressed into the drive mandrel 5. As a result, tensile forces occurring on the plug-in handle 4 during operation are supported by the rosette bushing 11.

[0028] Figure 5shows an exploded view of the handle 3 for clarification. For assembly, a first assembly is created by connecting the drive pin 5 to the rosette bushing 11 using the pin 18 and sliding on the locking bushing 22. In the first assembly, the locking bolt 25 is also mounted with the spring element 26 and the plug 27. This pre-assembled assembly is screwed to the wing 1, so that one end section 9 is in contact with the Figure 2 shown nut 6 of the drive rod fitting 2. Subsequently, a second assembly comprising compression spring 21 and the plug-in handle 4 can be plugged onto the protruding end cut 8 of the drive mandrel 5 until the plug-in handle 4 engages with the locking bolt 25.

Claims

1. Handle (3) for driving a drive rod fitting (2) of a sash (1) pivotable against a frame, with a plug-in handle (4), with a drive pin (5), with a rosette bushing (11) enclosing the drive pin (5) between two end sections (8, 9), wherein one of the end sections (9) of the drive pin (5) projects beyond the rosette bushing (11) for rotationally fixed coupling to a nut (6) of a drive gear (7) of the drive rod fitting (2) and the other of the end sections (8) is coupled to the plug-in handle (4), characterized in that the rosette bushing (11) has a recess (17) arranged transversely to the axis of the drive mandrel (5) and that a pin (18) protrudes from the drive mandrel (5) and projects into the recess (17).

2. Handle according to claim 1, characterized in that the recess (17) is designed as an opening guided over a partial area of ​​the circumference of the rosette bushing (11).

3. Handle according to claim 1 or 2, characterized in thatthe rosette bushing (11) has a circumferential flange (15) with a large diameter section and an adjoining small diameter section (13).

4. Handle according to claim 3, characterized in that the recess (17) is arranged in the small diameter section (13) of the rosette bushing (11).

5. Handle according to at least one of claims 1 to 4, characterized in that the recess (17) extends over the adjustment range of the plug-in handle (4).

6. Handle according to at least one of claims 3 to 5, characterized in that the small-diameter section (13) of the rosette bushing (11) has an outwardly projecting web (29) and that the web (29) is arranged parallel to the axis of rotation of the drive mandrel (5).

7. Handle according to at least one of claims 3 to 6, characterized in that the flange (15) of the rosette bushing (11) has holes (16) for the passage of fastening screws (12).

8. Handle according to at least one of claims 1 to 7, characterized in that the plug-in handle (4) has a locking connection (20) on the drive mandrel (5).

9. Handle according to at least one of claims 1 to 8, characterized in that the drive mandrel (5) has a resiliently projecting locking pin (25) and that the plug-in handle (4) has a ramp (28) which can be moved against the locking pin (25) when plugged on.

10. Handle according to claim 9, characterized in that the plug-in handle (4) has a bore (24) leading to the locking bolt (25).

11. Handle according to at least one of claims 1 to 10, characterized in that a compression spring (21) preloads the plug-in handle (4) away from the rosette bushing (11).

12. Handle according to claim 11, characterized in that a locking bushing (22) is arranged between the rosette bushing (11) and the compression spring (21).

13. Handle according to at least one of claims 3 to 12, characterized in thatthe plug-in handle (4) with an apron (19) projects beyond the flange (15) of the rosette bushing (11).

14. Handle according to at least one of claims 1 to 13, characterized in that the rosette bushing (11) has a shoulder (30) for supporting the pin (18) in the pulling direction of the plug-in handle (4).

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