Window sash or door leaf having an opening limiter

WO2025185871A8PCT designated stage Publication Date: 2025-10-02SIEGENIA AUBI KG
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Patent Information

Application Number
PCT/EP2025/051244
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-03-07
Filing Date
2025-01-20
Publication Date
2025-10-02

AI Technical Summary

Technical Problem

Existing opening restrictors for windows and doors are complex in design, limiting their applicability to specific installation types and requiring extensive installation space, while also failing to allow for tilting and locking mechanisms efficiently.

Method used

A sliding guide stop piece that is movable along an elongated hole, with a force-loaded first end position to ensure reliable locking and a second end position for easy deactivation, mounted in a rebate groove for optimal space utilization, allowing easy installation on wood or plastic profiles.

Benefits of technology

The solution provides a simple, versatile, and space-efficient opening restrictor suitable for various installation types, ensuring reliable locking and easy operation, while minimizing material wear and installation complexity.

✦ Generated by Eureka AI based on patent content.

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    Figure EP2025051244_02102025_PF_FP_ABST
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Abstract

The invention relates to a window sash or door leaf (2) having an opening limiter (11), wherein the opening limiter (11) is provided with a sliding- guide stop piece (14) for tilting-sash / leaf opening-out and / or securing arms (12) mounted at least pivotably on a frame (1) of the window (1) or door, wherein the sliding-guide stop piece (14) is equipped with a slot (17) in which a headed bolt (16) engages at the free end (13) of the opening-out and / or securing arm (12) so as to be able to be both pivoted and tilted, wherein the limiting stop end (19) comes into contact with the headed bolt (16) when the window sash (2) reaches its opening end position, wherein the headed bolt (16) of the opening-out and / or securing arm (12) can be coupled to and decoupled from the mouth (18) of the sliding-guide stop piece (14), wherein the mouth (18) for the headed bolt (16) is located at or near that end of the sliding-guide stop piece (14) which faces away from the limiting stop end (19) of the slot (17). In order to provide a window having an opening limiter which is constructed as simply as possible and which is suitable for each of the three mentioned different types of installation between the sash / leaf and outer frame of windows and doors without problems, but which at the same time also has the simplest possible construction, there is provision that the sliding-guide stop piece (14) can be moved along the slot (17) and, in a first end position (A), the mouth (18) lies outside a radius (21) through which the headed bolt (16) passes, and, in a second end position (B), can be moved to the axis of rotation (20) of the opening-out and / or securing arm (12) to such an extent that the headed bolt (16) exits the slot (17).
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Description

[0001] Applicant: SIEGENIA-AUBI KG, 57234 Wilnsdorf, DE

[0002] Window or door sash with opening limiter

[0003] The invention relates to a window or a door with an opening limiter according to the preamble of claim 1.

[0004] Opening restrictors equipped with such sliding guide stops have been around for a long time and are available in many different designs. They are used in so-called casement windows and doors to limit the opening angle of their sashes around the lateral vertical axis, as well as in windows with tilt-and-turn sashes, which are used primarily, but not exclusively, as so-called skylight windows.

[0005] FR-A 21 15731 discloses an opening restrictor having a sliding guide stop piece in which a slotted hole for guiding a head bolt is pivotably received. The sliding guide stop piece essentially consists of a housing and a fork body guided therein for limited movement, which fork body selectively opens or closes a passage opening for the head bolt. For this purpose, the fork body, beneath a cover of the housing containing the slotted hole guide for the head bolt, is biased by a spring into a position closing the openings. This position can be opened by a locking mechanism with a rotary latch by moving the fork body. In the end-open position of the window or door sash, the head bolt rests on a limit stop end formed by the cover, directly next to the closure of the passage opening for the head bolt formed by the fork body.

[0006] Furthermore, the design of the opening restrictor according to FR-A 21 15731 does not allow for the tilting of the tilting sash opening and / or locking arm. Furthermore, the construction, comprising a housing, a matching cover, and the spring-loaded fork body, is relatively complex and complicated to manufacture.

[0007] EP 0833028 B1 discloses a window or door in which the projection arm engages with a headed bolt into a slotted hole of a sliding guide stop. Opposite the closed end of the slotted hole is a passage extension that can be selectively opened or closed by a fork body. The projection arm can thus be selectively coupled or decoupled as needed.

[0008] DE 202016001421 U1 discloses a projection device in which the projection arm engages with the head bolt into a sliding guide formed on one side by a slide bar assigned to a base plate fixedly attached to the frame or sash. Opposite the slide bar is a second movable guide bar. This guide bar can be moved far enough that the head bolt can be pivoted past the sash when the sash is opened. Designing a load-bearing bearing for the guide bar is complex, as the installation space is very limited. The movable guide bar can be felt and moved when the limit position is activated and the sash is partially open.

[0009] The invention is therefore based on the object of providing a window with an opening restrictor that is as simply constructed as possible and that, on the one hand, is easily suitable for each of the three different installation types mentioned between the sash and the frame of windows and doors, but at the same time has the simplest possible construction.

[0010] This problem is solved by the features of claim 1 .

[0011] Because the sliding guide stop piece is movable along the elongated hole, and in a first end position, the opening extension lies outside a radius traversed by the head bolt, and in a second end position, it can be moved so close to the rotation axis of the opening and / or securing arm (8) that the head bolt protrudes from the elongated hole, weakening of the sliding guide stop piece is avoided and an easy-to-handle limitation of the opening width is achieved. The sliding guide stop piece protrudes at least part of the length of the elongated hole next to the pivot point formed by the head bolt and can therefore be felt when the sash is partially open.

[0012] In order to make optimal use of the limited installation space between the sash and frame, the sliding guide stop piece is mounted in a rebate groove so that it can be moved along the sash rebate.

[0013] To ensure reliable locking of the opening width, the sliding guide stop is designed to be force-loaded into the first end position. This means that the opening width limitation is always activated and must be deliberately deactivated.

[0014] For use with windows or doors made of wood or plastic profiles, it is advisable for the sliding guide stop to be mounted on a faceplate and slideably mounted. The sliding guide stop can be designed as a separate component of a connecting rod fitting.

[0015] Further advantageous embodiments are shown in the drawings. They show:

[0016] Fig. 1 a window in an overview view, Fig. 2 the activated limiting device (switch position A) in a rotating position of the sash, in a single view without the sash and frame in a first installation situation,

[0017] Fig. 3 shows the activated limiting device in a rotational position of the sash, in a single view without the sash and frame in a second installation situation, Fig. 4a shows the deactivated limiting device (switching position B) in a rotational position of the sash, in a single view without the sash and frame in a second installation situation,

[0018] Fig. 4b the activated limiting device (switching position A) in a rotational position of the sash, in a single view without the sash and frame,

[0019] Fig. 5 the activated limiting device in a rotational position of the sash, in an installation situation with sash and frame, and

[0020] Fig. 6 the activated limiting device in a turning position of the sash, in an installation situation with sash and frame.

[0021] The window shown in Fig. 1 consists of a frame 1 to which a window sash 2 is hinged, which can be opened by turning about a vertical axis 3. In a groove in the rebate surface of the window sash 2, a drive rod fitting 6 is arranged, in a manner known per se, which can be adjusted into two different switching positions by operating the operating handle 7. In the locking position, the window sash 2 is locked to the frame 1 by means of locking elements (e.g. locking pins) arranged on the drive rod fitting 6 in the closed position of the drive rod fitting 6 and in the closed position of the window sash 2. In the second switching position - the (pivoting) opening position B - the window sash 2 can be opened completely by turning into the pivoting opening position. In addition, a ventilation position of the window sash is also possible, which can also be referred to as a ventilation or gap ventilation position.

[0022] In this ventilation position, the window sash 2 is fixed or secured to the frame 1 in a position pivoted slightly around the axis 3. The connecting rod fitting 6 assumes the opening position B, as shown below. Thus, the window comprises two switching positions of the connecting rod fitting 6 and three possible positions of the window sash 2 (closed position, fixed ventilation position, and non-fixed pivot opening position).

[0023] The switching positions (locked position and open position) are each set, for example, by rotating the operating handle 7 by 90°. This is done via a connecting rod drive - e.g., according to DE 20308230 U1 - to which the sash rebate is moved. Locking elements 9 are attached to the connecting rod 8, which are assigned to locking engagements 10 provided in a fixed position in the frame 1. Furthermore, the window according to Fig. 1 is also provided with an opening restrictor 11, which is shown more clearly in Fig. 2 and which, like the connecting rod fitting 6, is attached to the side of the window sash 2 away from the axis of rotation.

[0024] The opening limiter 11 is mounted in the rebate of the frame 1 so that it is opposite the connecting rod fitting 6. The opening limiter 11 has a projection arm 12, which is mounted at one end 13 on the frame 1 by a sliding guide stop 14 via a bearing plate 15. The sliding guide stop 14 forms a sliding pivot bearing for a pin or head bolt 16 of the projection arm 12. The head bolt 16 is guided in a slotted hole 17 of the bearing plate 15.

[0025] Fig. 2 shows an assembly example of a first embodiment without the window sash 2 and frame 1. The projection arm 12 is assigned at its end 13 to the sliding guide stop piece 14 attached to the sash side. The projection arm 12 has a head bolt 16 for this purpose. The head bolt 16 has a head that is larger in diameter than a cylindrical shaft. This head engages behind the longitudinal edges of the claw-like sliding guide stop piece 14. The head bolt 16 thus engages the free end 13 of the projection arm 12, allowing both pivoting and tilt adjustment. Perpendicular to the plane of the drawing, the head of the head bolt 16 engages behind the longitudinal edges of the elongated hole 17 and is fixed in this direction.

[0026] The elongated hole 17 has an open mouth 18 and a closed limit stop end 19 (Fig. 4). From Fig. 2, it can be seen that the extension arm 12 can pivot about the pivot axis 20. The head bolt 16 therefore describes a radius 21 around the pivot axis 20.

[0027] In the position shown in Fig. 2, the mouth 18 lies outside the radius 21 and cannot protrude from the elongated hole 17. Even if the longitudinal center axis 22 is congruent with the perpendicular bisector 23 in the closed position of the window sash 2, the head bolt 16 abuts the strip 24 and does not protrude from the mouth 18.

[0028] In Fig. 2, the head bolt 12 abuts the limit stop end 19 and limits the opening width of the window sash 2 to a distance of 25. This is the final opening position. The distance 25 is sufficient to open the window sash 2 a crack and expose the sash rebate 26 (Figs. 5 and 6).

[0029] In order to fully open the sash, for example, for cleaning purposes, the head bolt 16 of the extension arm 12 is designed to be connectable to and disconnectable from the mouth 18 of the sliding guide stop piece (10). As already described above, the mouth 18 for extending the head bolt 16 is arranged at or near the end of the sliding guide stop piece 14 facing away from the limit stop end 19 of the elongated hole 17. In the figures, the mouth 18 is designed as an opening located in the longitudinal direction of the elongated hole 17.

[0030] Alternatively, a lateral opening can also be provided in the slot.

[0031] To achieve the decoupling of the head bolt 16, the sliding guide stop piece 14 is designed to be displaceable along the elongated hole 17. In a first end position A, the mouth 18 or a lateral passage in the elongated hole 17 lies outside the radius 21 traversed by the head bolt 16. In this position of the sliding guide stop piece 14, the head bolt 16 cannot emerge from the elongated hole 17. The opening limiter 11 is activated in the end position A.

[0032] In a second end position (B), the sliding guide stop piece 14 is displaced far enough in the direction of the rotation axis 20 of the extension arm 12 that the head bolt 16 protrudes from the elongated hole 17. The opening limiter 11 is deactivated in the end position B.

[0033] In order to transfer the sliding guide stop piece 14 from the activated switching position A according to Fig. 2 to the deactivated switching position B according to Fig. 4a, the sliding guide stop piece 14, together with the bearing plate 15, is displaceable along the sash rebate 26. In the illustrated embodiments, a drive rod fitting component 28 is provided for this purpose in the rebate groove 27. The drive rod fitting component 28 has a faceplate 29, which rests on a groove shoulder of the rebate groove 27 and guides a drive rod 30 along the longitudinal center axis 22. The faceplate 29 has an elongated hole guide 31, in which the bearing plate 15 is displaceably mounted.

[0034] This design allows the opening limiter 11 to be mounted as part of the connecting rod fitting 6. The connecting rod fitting component 28 serves as an intermediate piece and connecting component for the adjacent connecting rod components. Only the frame-side bearing block 32 needs to be installed additionally.

[0035] Figures 4a and 4b illustrate the two end positions A and B. In the activated end position A, the sliding guide stop piece 4 is moved to the lower end of the slotted guide 31 in the drawing. To establish the activated end position A as the standard setting, the sliding guide stop piece 14 can be force-loaded into the first end position (A). For this purpose, a spring element acts between the faceplate 29 and the bearing plate 15.

[0036] Fig. 3 and Fig. 5 show a design of the sliding guide stop piece 14, in which the leg 33 of the sliding guide stop piece 14 located in the direction of the frame 1 is shortened compared to the second leg 34 and has an inclined edge 35. The edge 35 acts as a starting bevel when the window sash 2 is closed with the opening limiter 11 deactivated. In this case, the extension arm 12 hangs downward due to its own weight and the head bolt 16 is in position 36. The leg 33 therefore abuts the head bolt 16 with the edge 35 and displaces the sliding guide stop piece 14 upward in Fig. 3.

[0037] To deactivate the opening limiter 11, an operator must reach into the rebate with the window sash partially open (Fig. 5 or 6) and slide the sliding guide stop 14. To facilitate operation and for stability, the leg 33 is provided with a thickened portion 37. An access opening 38 is provided in the sliding guide stop 14 for easy locating the sliding guide stop 14. The access opening 38 is accessible when the extension arm 12 is in the inclined position.

[0038] The figures also show that a stop 39 is attached to the end 13 of the projection arm 12. The stop 39 is rotatably attached to the projection arm 12. The stop 39 is provided with a stop leg 40 aligned perpendicular to the plane of the drawing. When the window sash 2 is closed, the stop leg 40 rests against the visible edge on the inside of the room and aligns the projection arm 12 parallel to the perpendicular bisector 23.

[0039] Deviating from the illustrations, a locking element can also be provided in the elongated hole 17. This locking element interacts with the head bolt 16 and allows it to penetrate the elongated hole 17, but then locks the extension arm 12 in the end position of the elongated hole 17, as shown in Fig. 2. To release the locking element, only an increased force is required to close the window sash 2. The head bolt 16 then overcomes the locking element and continues to move freely in the vertical plane of the elongated hole 17.

[0040] List of reference symbols

[0041] 1 frame

[0042] 2 window sashes

[0043] 3 axis

[0044] 6 Espagnolette fitting

[0045] 7 Operating handle

[0046] 8 Drive rod

[0047] 9 locking elements

[0048] 10 locking interventions

[0049] 11 Opening limiter

[0050] 12 extension arm

[0051] 13 End

[0052] 14 Sliding guide stop piece

[0053] 15 bearing plate

[0054] 16 head bolts

[0055] 17 slot

[0056] 18 mouths

[0057] 19 Limit stop end

[0058] 20 axis of rotation

[0059] 21 radius

[0060] 22 Longitudinal center axis

[0061] 23 perpendicular bisectors

[0062] 24 bar

[0063] 25 distance

[0064] 26 sash rebate

[0065] 27 rebate groove

[0066] 28 Espagnolette fitting component

[0067] 29 Faceplate

[0068] 30 Drive rod

[0069] 31 Slotted hole guide

[0070] 32 bearing block

[0071] 33 legs

[0072] 34 legs

[0073] 35 edge

[0074] 36 positions

[0075] 37 Thickening

[0076] 38 Access opening 39 Stop

[0077] 40 stop legs

[0078] A activated end position

[0079] B deactivated end position

Claims

Claims 1 . Window or door leaf with an opening limiter (1 1), - wherein the opening limiter (11) is provided with a sliding guide stop piece (14) for tilting sash opening and / or securing arms (12) mounted at least pivotably on a frame (1) of the window (1) or the door, - wherein the sliding guide stop piece (14) is provided with an elongated hole (17), - into which a head bolt (16) at the free end (13) of the extension and / or securing arm (12) engages in a pivotable and tiltable manner, - wherein the limit stop end (19) comes into contact with the head bolt (16) when the window sash (2) reaches its final opening position, - wherein the head bolt (16) of the extension and / or securing arm (12) can be coupled and uncoupled from the mouth (18) of the sliding guide stop piece (14), wherein the mouth (18) for the head bolt (16) is located at or near the end of the sliding guide stop piece (14) facing away from the limiting stop end (19) of the elongated hole (17), characterized in that the sliding guide stop piece (14) is displaceable along the elongated hole (17) and in a first end position (A) the mouth (18) lies outside a radius (21) through which the head bolt (16) passes and in a second end position (B) it can be displaced to the axis of rotation (20) of the extension and / or securing arm (12) so far that the head bolt (16) emerges from the elongated hole (17).

2. Window or door sash with an opening limiter (11) according to claim 1, characterized in that the sliding guide stop piece (14) is mounted displaceably in a rebate groove (27) along the sash rebate (26).

3. Window or door leaf with an opening limiter (11) according to claim 1 or 2, characterized in that the sliding guide stop piece (14) is subjected to a force in the first end position (A).

4. Window or door leaf with an opening limiter (11) according to one of claims 1 to 3, characterized in that the sliding guide stop piece (14) is displaceably mounted on a faceplate rail (29).