WING ARRANGEMENT

DE502017016902D1Active Publication Date: 2025-07-10GRETSCH UNITAS GMBH BAUBESCHLAGFABRIK
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Patent Information

Application Number
DE502017016902
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2017-08-25
Publication Date
2025-07-10
Estimated Expiration
2037-08-25

AI Technical Summary

Technical Problem

Existing wing arrangements for sash windows experience damage due to bending moments caused by static and dynamic forces when the sash is tilted, leading to potential damage or destruction of the projection arm.

Method used

A sash arrangement with a bracket-free design, where a first stop part is stationary relative to the extension arm and a second stop part is stationary relative to the sash, ensuring alignment and adjustment of the sash relative to the extension arm, thereby eliminating transverse forces on the projection arm.

Benefits of technology

The solution effectively reduces or eliminates bending moments on the projection arm, particularly in the tilted position, resulting in a structurally simpler and more cost-effective sash arrangement with reduced risk of damage.

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Description

[0001] The invention relates to a wing arrangement having the features of the preamble of claim 1.

[0002] Such sash arrangements are known from the prior art. With such sash arrangements, the sash can be pivoted or tilted relative to the frame. The projection arm couples the sash to the frame. A bracket is provided on the projection arm, each pivoted at one end on the sash and at the other on the projection arm. In the tilted position, the force exerted by the bracket on the projection arm causes bending moments. The force applied consists of a static component (required holding force) and a dynamic component ("tilting impact"). The tilting impact describes the force applied by braking the sash at the end of the tilting movement. This can lead to damage or destruction of the projection arm. In a projection device known from DE 75 28 778 U, the additional arm (bracket) is coupled to the projection rod via a slotted hole, thus reducing bending moments on the projection arm.EP 1 344 887 A1, DE 15 84 083 A1 and DE 18 02 164 A1 show devices with features of the preamble of claim 1. US 3 994 093 A also shows a device with features of the preamble of claim 1. DE 23 02 286 A1 shows a pop-up device in which the sealing system of a window sash can be adjusted by means of a cam.

[0003] The invention is based on the object of reducing the loads acting on the extension arm using simple structural means.

[0004] The invention solves the problem by a sash arrangement having the features of claim 1. The sash arrangement is characterized in that a first stop part, which is stationary relative to the sash, is arranged on the extension arm and in that a second stop part, which is stationary relative to the sash, is arranged on the sash, wherein the stop parts are in contact when the sash is closed and / or pivoted (closed and / or rotated position of the sash), so that the sash is aligned or adjusted relative to the extension arm.

[0005] Such a design has the advantage that no or only negligible transverse forces act on the projection arm (scissor arm) when the sash is tilted. This is made possible by the complete omission of a bracket coupling the projection arm to the sash (bracket-free design). As a result, the projection arm is only coupled at one end to the frame and the other end to the sash. Therefore, the projection arm is subject to virtually no bending moment, especially in the tilted position. Due to the comparatively small number of components and their structurally simple design, an overall structurally simple sash arrangement is achieved. The stop components are used to position or adjust the sash relative to the pivot bearing (e.g. scissor bearing) or relative to the frame in the turned / closed position of the sash. In the simplest case, the stop components are designed as a pin or bolt.

[0006] In particular, the wing can be tilted about a first axis, e.g., horizontal in the installed position (tilt axis), and can be rotated or pivoted about a second axis, e.g., vertical in the installed position (rotation axis or pivot axis). The first axis and the second axis can be oriented orthogonally to each other.

[0007] The sash is mounted on the frame, particularly at the tiltable end, by means of a tilt-and-turn fitting. The tilt-and-turn fitting has, in particular, a projection arm (e.g., a scissor arm) and a projection arm bearing for attachment to the frame (e.g., a scissor bearing). The projection arm can be guided at one end in a longitudinal slot on the sash and mounted on the frame side, e.g., by means of the projection arm bearing. Furthermore, the sash is mounted on the frame, particularly at the end opposite the tiltable end, by means of a corner bearing. The corner bearing enables the sash to pivot about the first axis (tilt axis) and the second axis (rotation axis or pivot axis).

[0008] Furthermore, according to the invention, a handle for actuation is provided on the sash. The handle serves to close and open the sash, as well as to switch between tilt operation (tilt position) and pivot operation (turn position / closed position). To position or lock the extension arm on the sash (locking for turn position / closed position), a locking pin can be provided on a sash-side fitting (e.g., a scissor arm), which corresponds to a striker plate arranged on the extension arm (scissor arm).

[0009] The proposed sash arrangement is particularly suitable for tilt-and-turn windows with exposed or concealed fittings.

[0010] In a preferred embodiment, the second stop part can be arranged on a sash-side fitting element. This ensures simple and stable alignment of the second stop part on the sash. This can be easily mounted on the sash together with the sash-side fitting element. The fitting element can, in particular, be a component that overlaps with the projection arm in the turned and / or closed position of the sash, e.g., a faceplate or scissor-type faceplate.

[0011] Conveniently, the first stop part or the second stop part can be designed to be adjustable. In this way, the orientation of the sash can be adjusted with a simple design. For example, the second (sash-side) stop part can be designed to be adjustable, as it is easily accessible for sash adjustment when the sash is tilted. The first (extension arm-side) stop part can be designed as a pin, bolt, or hexagon. It is also conceivable for both stop parts to be adjustable. This allows a large adjustment range to be achieved.

[0012] Further, according to the invention, the first stop part or the second stop part can be designed as an eccentric. This creates a structurally simple and space-saving adjustment option. An engagement or engagement section for a tool can be formed on the eccentric. For example, the eccentric can have an internal or external hexagon. It is also conceivable for both stop parts to be adjustable. This allows a large adjustment range to be achieved with a structurally simple and space-saving adjustment option.

[0013] The usual lateral adjustment on the scissor angle (component between the projection arm / scissor arm and the projection arm bearing) can be eliminated because the lateral adjustment of the sash relative to the projection arm bearing is handled by the adjustable stop component (sash-side stop component), particularly the eccentric. This eliminates the need for a separate scissor angle. The projection arm / scissor arm and the scissor angle can thus form a single component, particularly a one-piece design. This contributes to a structurally simple, stable, and cost-effective design.

[0014] In a preferred embodiment, the sash, in the tilted position, can rest in sections with its underside, in particular its lower side relative to the direction of gravity, on the frame, in particular a lower frame section relative to the direction of gravity, preferably at the free end of the sash (opposite the hinge side). As a result, in the tilted position, part of the weight of the sash is absorbed on the opposite side of the hinge. The force of the sash acting on the projection arm (scissor arm) (proportion of the sash weight) is thus reduced. This promotes a design of the projection arm that is free of transverse forces. In particular, the sash rests on the frame in such a way that the sash is not statically overdetermined. This can prevent bending loads on the projection arm.

[0015] Specifically, the sash can rest directly on the frame with its underside. This creates a structurally simpler and more cost-effective sash.

[0016] Alternatively, the sash can have a support element on its underside, particularly one that is designed separately from and / or attached to the sash, by means of which the sash rests on the frame. Resting and any associated wear do not occur directly on the sash, but on the support element. This prevents damage to the sash. The support element can be easily adapted to the respective sash arrangement and mounted on the sash, e.g., screwed. This also makes it easy to replace the support element due to wear.

[0017] Alternatively or additionally, the frame, particularly at its lower frame section, can have a counter-support element (e.g., a tilt striker plate) by means of which the sash rests on the frame. Resting and any associated wear do not occur directly on the frame, but on the counter-support element. This can prevent damage to the frame. The counter-support element can be adapted to the respective sash arrangement and mounted, e.g., screwed, to the frame. Replacing the counter-support element due to wear is easy.

[0018] The invention is explained in more detail below with reference to the figures, in which identical or functional elements may be provided with reference numerals only once. They show: Figure 1 shows an embodiment of a wing arrangement with the wing in a tilted position in a perspective view; Figure 2 shows an enlarged section of the wing arrangement fromFigure 1 with wing in tilted position; Figure 3 the wing arrangement from Figure 1 with the sash in the closed position in a partially sectioned view; and Figure 4 shows a fitting of the sash assembly from Figure 1 in a partial side view and a top view.

[0019] Figure 1 shows a sash assembly, designated overall by reference numeral 10. The sash assembly 10 has a stationary frame 12 and a sash 14 of a window or door mounted on the frame 12. The sash 14 can be tilted and pivoted relative to the frame 12. Furthermore, the sash 14 is coupled to the frame 12 by means of a projection arm 16, for example, by means of a scissor arm.

[0020] The frame 12 has an upper frame member 18, a lower frame member 20, and two vertical members 22, 24. The sash 14 has a sash frame 26 that defines a sash field 28. The sash field 28 can be formed, for example, by glazing. The sash frame 18 has an upper profile 30, a lower profile 32, and vertical profiles 34 and 36.

[0021] The direction of gravity G points in Figure 1 downwards. The sash 14 can be tilted about a first axis 38 relative to the frame 12 (tilt axis). In addition, the sash 14 can be rotated or pivoted about a second axis 40 (rotation axis or pivot axis) relative to the frame 12 when not tilted (rotational position or pivot position). The sash 14 is mounted on the frame 12 at the tiltable sash end 42 by means of a tilt-and-turn fitting 44. The tilt-and-turn fitting 44 has the extension arm 16 (scissor arm) and an extension arm bearing 46 (scissor bearing) for attachment to the frame 12 (see Figure 2). The projection arm 16 is guided at one end by means of a pin 47 in a longitudinal slot 48 of a sash-side fitting element 50 (scissor stay). At the other end, the projection arm 16 is mounted on the frame 12 by means of the projection arm bearing 46.

[0022] At the wing end 52 opposite the tiltable wing end 42, the wing 14 is mounted on the frame 12 by means of a corner bearing 54 (see Figure 1 ). The corner bearing 54 enables a pivoting movement of the sash 14 about the first axis 38 (tilt axis) and the second axis 40 (rotation axis or pivot axis).

[0023] A handle 56 is also provided on the sash 14 for operation. The handle 56 serves to close and open the sash 14 as well as to convert the sash 14 from tilting to pivoting operation or vice versa. The handle 56 cooperates with drive elements, e.g., connecting rods.

[0024] A first stop part 58 which is fixed relative to the extension arm 16 is arranged on the extension arm 16 (see Figure 2 ). The first stop part 58 projects from the extension arm 16 in the direction of the sash 14 (in Figure 2 downwards). A second stop part 60 is arranged on the sash 14, which is stationary relative to the sash 14. The stop part 60 projects from the sash 14 in the direction of the extension arm 16 (in Figure 2 up).

[0025] The stop parts 58, 60 are in contact when the sash 14 is closed and / or pivoted, whereby the sash 14 is aligned or adjusted relative to the extension arm 16. The extension arm 16 and the sash-side fitting element 50 are then almost parallel to each other and overlap with each other (see Figure 3 and 4 ). "Nearly parallel to each other" includes deviations of ±5° from the parallel orientation.

[0026] In particular, when the sash 14 is closed and / or pivoted, the first stop part 58 and the second stop part 60 are in contact with each other in such a way that the first stop part 58 engages behind the second stop part 60 when viewed from the direction of the extension arm bearing 46, so that at least part of the load of the sash 14 is introduced into the frame 12 via the extension arm bearing 46 (see Figure 3 ).

[0027] In the tilted position of the wing 14, the first stop part 58 and the second stop part 60 are not in contact with each other (see Figure 2 ). This means that no or only a negligible transverse force acts on the extension arm 16. This reduces the forces acting on the extension arm 16 (see arrow F2 at corner B in Figure 1 )

[0028] The second stop part 60 is arranged on a sash-side fitting element, namely on the previously described sash-side fitting element 50. The fitting element 50 can be a scissor-type faceplate.

[0029] The first stop part 58 or the second stop part 60 can be adjustable. In the present embodiment, the second stop part 60 is adjustable. The first stop part 58 is not adjustable.

[0030] The first stop part 58 or the second stop part 60 can be designed as an eccentric. In the present embodiment, the second stop part 60 is designed as an eccentric. The eccentric can be rotated relative to the fitting element 50 for adjustment. The first stop part 58 is designed as a pin or bolt. The further the contour of the second stop part 60, designed as an eccentric, projects in the direction of the first stop part 58, the more the sash-side fitting element 50, and thus the sash 14 as a whole, is pulled towards the (right) vertical beam 24 (see Figure 3 and 4 ).

[0031] Further positioning or locking of the sash 14 is achieved by a locking pin 62 guided in the sash-side fitting element 50. The locking pin 62 is coupled to a drive rod 64 of the sash-side fitting device 66 and can be displaced by the drive rod 64. The locking pin 62 engages in a groove 70 of a striker plate 68 attached to the extension arm 16. The locking pin 62 can optionally be designed as a (further) eccentric in order to be able to adjust the contact pressure of the sash 14 on the frame 12 (see Figure 4 ).

[0032] The sash assembly 10 is configured such that the sash 14, in the tilted position, rests with its underside (underside of the lower profile 32) partially on the frame 12 (lower frame member 20), specifically at the free end of the sash 14 (opposite the hinge side). As a result, in the tilted position, part of the weight of the sash 14 is absorbed on the opposite side of the hinge (see force F3 at corner C in Figure 1 ). A further part of the weight of the sash 14 is absorbed on the hinge side, namely by the corner bearing 54 (see force F1 at corner A in Figure 1 ).

[0033] In the present embodiment, the wing 14 rests with its underside (underside of the lower profile 32) directly on the frame 14 (lower frame member 20).

[0034] Optionally, the sash 14 can have a support element on its underside, by means of which the sash 14 rests on the frame 12. Independently of this, the frame 12 can optionally have a counter-support element, e.g., a tilting striker plate, by means of which the sash 14 rests on the frame 12, in particular on its lower frame section (lower frame member 20).

[0035] Figure 4 shows a fitting device 65 (sash fitting) which has a sash-side fitting device 66 mounted on the sash 14 (not shown). In addition, the fitting device 66 has a frame-side fitting device 67 mounted on the frame 12 (not shown).

[0036] The fitting device 65 forms a component of the sash assembly 10. Due to the optimizations described above, the fitting device 65 and thus the sash assembly 10 as a whole are structurally considerably simplified.

Claims

1. Wing arrangement (10) with a fixed frame (12) and a wing (14) of a window or door mounted on the frame (12), wherein the wing (14) can be tilted and swivelled relative to the frame (12), and wherein the wing (14) is coupled to the frame (12) by means of a stay arm (16), wherein, for operation, a handle (56) is provided on the wing (14) for closing and opening the wing (14) and for switching between tilt and swivel operation, wherein the handle (56) interacts with driving rods for this purpose, wherein a first stop part (58), fixed relative to the stay arm (16), is arranged on the stay arm (16), and a second stop part (60), fixed relative to the wing (14), is arranged on the wing (14), wherein the stop parts (58, 60) are designed as pins, bolts or eccentrics and are in contact when the wing (14) is closed and / or swivelled, so that the wing (14) is aligned relative to the stay arm (16), wherein the stay arm (16) is formed without splicing plates, so that the stay arm (16) is only coupled to the frame (12) at one end and to the wing (14) at the other end.

2. Wing arrangement (10) according to claim 1, characterised in that the second stop part (60) is arranged on a wing-side fitting element (50).

3. Wing arrangement (10) according to claim 1 or 2, characterised in that the first stop part (58) or the second stop part (60) is designed to be adjustable.

4. Wing arrangement (10) according to one of the preceding claims, characterised in that, in the tilted position, the wing (14) rests, in sections, with its underside, on the frame (12), in particular at the free end of the wing (14).

5. Wing arrangement (10) according to claim 4, characterised in that the wing (14) rests with its underside directly on the frame (12).

6. Wing arrangement (10) according to claim 4, characterised in that the wing (14) has a support element on its underside by means of which the wing (14) rests on the frame (12).

7. Wing arrangement (10) according to one of the claims 4 to 6, characterised in that the frame (12) has a countersupport element, in particular on its lower frame section, by means of which the wing (14) rests on the frame (12).