Adjustable vertical reinforcement element for a lowerable sash of a window

EP4743646A1Pending Publication Date: 2026-05-20AUG WINKHAUS SE
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
AUG WINKHAUS SE
Filing Date
2024-07-02
Publication Date
2026-05-20

AI Technical Summary

Technical Problem

Existing vertical bracing systems for removable window sashes face challenges in stability and ease of adjustment, particularly due to undesirable friction during rotational adjustments and limited reinforcement in corner areas, which affects the support bolt's positioning and stability.

Method used

The support bolt is positively coupled to an adjusting part and guided within a cage, allowing for stable adjustment without rotational influence, with features like stepped sections, U-shaped legs, and internal threads to enhance stability and facilitate easy positioning, and markings for clear adjustment readings.

Benefits of technology

This design provides high stability and easy adjustment of the support bolt, preventing positional changes due to rotation, and effectively reinforces the corner area, ensuring the vertical bracing can handle heavy loads and distortions.

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    Figure EP2024068556_16012025_PF_FP_ABST
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Abstract

The invention relates to an adjustable vertical reinforcement element (6), having a supporting bolt (9) which can be adjusted in a cage (11) in an interlocking manner (9). The supporting bolt (9) is coupled to an adjustment part (12) in an interlocking manner. The adjustment part (12) is guided in the cage (11) in an adjustable manner. As a result, the vertical reinforcement element (6) has high stability and enables the supporting bolt (9) to be adjusted easily.
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Description

[0001] Adjustable vertical bracing for a retractable window sash

[0002] Description

[0003] The invention relates to an adjustable vertical stiffener for a tiltable sash of a window, a French window or the like, comprising a support bolt, a retaining rail to be mounted on a horizontal beam of the sash for guiding one end of the support bolt and a base plate for supporting the support bolt on a vertical beam of the sash, and a cage of the base plate in which the support bolt is adjustable perpendicular to the base plate.

[0004] Such vertical bracing is used for heavy sashes, especially for retractable sliding sashes. When the vertical bracing is installed, the retaining rail is attached to a horizontal stile of the sash and guides one end of the support bolt with virtually no play. The connection to the base plate mounted on the vertical stile of the sash provides reinforcement in the corner area and compensates for any torsion of the stiles.

[0005] DE 10 2013 226 716 A1 discloses an adjustable valve stiffener with an eccentric. The eccentric is mounted in a mounting element and formed as part of a bolt. By turning the bolt, the eccentric is adjusted in the mounting element and the valve stiffener is adjusted. However, if the bolt is guided in a retaining rail, this rotation leads to undesirable friction.

[0006] WO 2015 / 176924 A1 discloses a valve stiffener in which a rotating element engages with a slotted guide at one end of the stop means, which is designed as a bolt. This allows the bolt to rotate without changing the stop position. Forces are transmitted directly to the rotating element and its bearings.

[0007] The invention is based on the problem of developing a valve stiffener of the type mentioned at the outset in such a way that it has a particularly high level of stability and enables a particularly simple adjustment of the support bolt.

[0008] This problem is solved according to the invention in that the support bolt is positively coupled to an adjusting part and that the adjusting part is adjustably guided in the cage.

[0009] This design prevents the support bolt from being displaced due to twisting. The actuator decouples the support bolt from the cage. The actuator's guidance within the cage can be made particularly stable through appropriate structural design. This ensures the vertical bracing is highly stable. Furthermore, the position of the support bolt between the actuator and the cage can be easily adjusted.

[0010] According to another advantageous development of the invention, adjustment of the support pin due to rotational movements between the support pin and the cage can be reliably prevented if the support pin has a stepped section and if the actuating element is supported on the stepped section. This design allows the support pin to rotate relative to the actuating element and thus the cage during operation. Since the position of the support pin is adjusted between the actuating element and the cage, rotation of the support pin has no influence on its position relative to the base plate.

[0011] According to another advantageous embodiment of the invention, the cage further increases the stability of the vertical bracing if the cage encloses the control element with two U-shaped legs, and the free ends of the legs are connected to the base plate in a form-fitting or material-fitting manner. The free ends of the cage are preferably riveted to the base plate.

[0012] According to another advantageous development of the invention, the support of the vertical stiffener on the vertical beam has a high stability if the base plate has fastening holes for mounting on the vertical beam and if the fastening of the cage is arranged between the fastening holes.

[0013] According to another advantageous embodiment of the invention, the guide of the control element is highly stable if the cage has at least one elongated hole for a pin of the control element. Preferably, the cage has a elongated hole for a pin on each of the two opposite legs, so that the control element is guided in a tilt-proof manner.

[0014] According to another advantageous embodiment of the invention, the pin and the area of ​​the cage adjacent to the pin are provided with markings to simplify the adjustment of the vertical bracing. This design allows the adjustment to be easily read from the markings.

[0015] According to another advantageous development of the invention, the adjustability of the vertical stiffening is further simplified if a base connecting the ends of the legs facing away from the base plate has an internal thread for receiving an adjusting screw for adjusting the support bolt.

[0016] According to another advantageous development of the invention, tensile forces between the support bolt and the cage can be easily transmitted if the adjusting screw engages behind a recess in the adjusting part with a radial widening.

[0017] According to another advantageous development of the invention, compressive forces between the support bolt and the cage can be easily transmitted if the radial widening of the adjusting screw is arranged between the adjusting part and the support bolt.

[0018] According to another advantageous development of the invention, the stability of the vertical bracing is further increased if the support bolt has a circumferential groove and the base plate has a support element that penetrates the groove. This provides the support bolt with a locking mechanism that prevents it from shifting in the axial direction. In the simplest case, the support element is formed as an angled portion of the base plate. This allows the support element to deflect slightly when the support bolt is adjusted.

[0019] According to another advantageous embodiment of the invention, the support bolt is capable of supporting high forces if the base plate, remote from the cage, has a retaining ring enclosing the support bolt. The retaining ring is preferably designed as an angled portion from the base plate.

[0020] According to another advantageous embodiment of the invention, the base plate has a stiffening web perpendicular to the longitudinal axis of the support bolt to further increase the stability of the vertical bracing. The stiffening web is preferably designed as an angled portion of the base plate.

[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

[0022] Fig. 1 schematically shows a corner area of ​​a window with an adjustable vertical stiffener,

[0023] Fig. 2 shows an enlarged perspective view of the vertical bracing from Figure 1,

[0024] Fig. 3 the vertical stiffening from Figure 1 in a sectional view along the line III - III,

[0025] Fig. 4 shows the vertical stiffening from Figure 1 in a sectional view along the line IV - IV.

[0026] Figure 1 shows a schematic view of a corner area of ​​a window with a sash 2 that can be moved relative to a frame 1. The frame 1 has a track 3 along which the sash 2 can be pushed and from which it can be parked perpendicular to the plane of the drawing. A vertical stiffener 6 is arranged in an adjacent area between a horizontal stile 4 and a vertical stile 5 of the sash 2. The vertical stiffener 6 has a holding rail 7 fastened to the horizontal stile 4 and a base plate 8 fastened to the vertical stile 5. The base plate 8 holds a support bolt 9. The support bolt 9 penetrates the holding rail 7 with a free end without play. The inclination of the support bolt 9 perpendicular to the plane of the drawing can be adjusted using an adjusting screw 10.

[0027] Figure 2 shows the vertical stiffener 6 in an enlarged perspective view. It can be seen that a cage 11 is attached to the base plate 8. The adjusting screw 10 is screwed into the cage 11. The adjusting screw 10 interacts with the support bolt 9 and an adjusting part 12 coupled to the support bolt 9. The adjusting part 12 penetrates an elongated hole 14 in the cage 11 with a pin 13. The pin 13 and the cage 11 have markings 15 from which the set inclination of the support bolt 9 can be read.

[0028] The base plate 8 has fastening holes 16 for the passage of fastening screws for screwing to the vertical beam 5 of Figure 1. Furthermore, the base plate 8 has angled support elements 17 with which it penetrates into a circumferential groove 18 of the support bolt 9. A retaining ring 19 is angled away from the base plate 8 at a distance from the cage 11. This retaining ring 19 encloses the support bolt 9 at a predetermined distance from the actuating part 12. Transverse to the longitudinal axis of the support bolt 9, the base plate 8 has a stiffening web 20.

[0029] Figure 3 shows a sectional view through the vertical stiffener 6 from Figure 1 along the line III-III. It can be seen that the adjusting part 12 is supported on a stepped section 21 of the support bolt 9.

[0030] Figure 4 shows the vertical stiffener 9 from Figure 1 in a sectional view along the line IV - IV. The cage 1 1 encloses the adjusting part 12 with two legs 22 and a U-shaped base 23. The free ends of the legs 22 are riveted to the base plate 8. The base 23 has an internal thread 24 for the adjusting screw 10. The adjusting screw 10 has a radial widening 25 with which it engages behind a recess 26 in the adjusting part. The widening is arranged between the adjusting part 12 and the stepped section 21 of the support bolt 9. When the adjusting screw 10 is turned, the support bolt 9 is adjusted in the cage 1 1. Figure 4 also shows that the adjusting part 12 has a total of two pins 13, which are each guided in elongated holes 14 in the cage 1 1.

Claims

Patent claims 1. Adjustable vertical stiffener (6) for a tiltable sash (2) of a window, a French window or the like, with a support bolt (9), with a holding rail (7) to be mounted on a horizontal stile (4) of the sash (2) for guiding one end of the support bolt (9) and with a base plate (8) for supporting the support bolt (9) on a vertical stile (5) of the sash (2) and with a cage (11) of the base plate (8), in which the support bolt (9) is adjustable perpendicular to the base plate (8), characterized in that the support bolt (9) is positively coupled to an adjusting part (12) and that the adjusting part (12) is adjustably guided in the cage (11).

2. Adjustable vertical stiffener according to claim 1, characterized in that the support bolt (9) has a stepped section (21) and that the adjusting part (12) is supported on the stepped section (21).

3. Adjustable vertical stiffener according to claim 1 or 2, characterized in that the cage (11) encloses the adjusting part (12) with two legs (22) in a U-shape and free ends of the legs (22) are connected to the base plate (8) in a form-fitting or material-fitting manner.

4. Adjustable vertical bracing according to at least one of claims 1 to 3, characterized in that the base plate (8) has fastening holes (16) for mounting on the vertical beam (5) and that the fastening of the cage (11) is arranged between the fastening holes (16).

5. Adjustable vertical bracing according to at least one of claims 1 to 4, characterized in that the cage (11) has at least one elongated hole (14) for a pin (13) of the adjusting part.

6. Adjustable vertical stiffener according to claim 5, characterized in that the pin (13) and the area of the cage (11) adjacent to the pin (13) have markings (15).

7. Adjustable vertical stiffener according to at least one of claims 3 to 6, characterized in that a base (23) connecting the ends of the legs (22) facing away from the base plate (8) has an internal thread (24) for receiving an adjusting screw (10) for adjusting the support bolt (9).

8. Adjustable vertical stiffener according to claim 7, characterized in that the adjusting screw (10) engages behind a recess (26) of the adjusting part (12) with a radial widening (25).

9. Adjustable vertical stiffener according to claim 8, characterized in that the radial widening (25) of the adjusting screw (10) is arranged between the adjusting part (12) and the support bolt (9).

10. Adjustable vertical stiffener according to at least one of claims 1 to 3, characterized in that the support bolt (9) has a circumferential groove (18) and the base plate (8) has a support element (17) penetrating into the groove (18). 1 1. Adjustable vertical stiffener according to at least one of claims 1 to 10, characterized in that the base plate (8) has a retaining ring (19) surrounding the support bolt (9) at a distance from the cage (1 1).

12. Adjustable vertical stiffener according to at least one of claims 1 to 11, characterized in that the base plate (8) has a stiffening web (20) transverse to the longitudinal axis of the support bolt (9).