EP3749822B1 - Assisting fitting for a tiltable wing of a window or door - Google Patents

Description

Background of the Invention

The invention relates to a support fitting for a movable, in particular tiltable, sash of a window or door. The invention also relates to a window or a door with such a support fitting.

It is known to use hardware to assist in opening and/or closing a tilting sash of a window or door.

The CH 684 350 A5 discloses a tilting and sliding door with spring-loaded scissor stays.

From the DE 103 00 655 A1 a window has become known, the wing of which can be actuated by a cable pull. The drive device has a spring for applying a spring force to the cable pull.

The EP 0 960 999 A1 discloses a tilting window with a spring which can be actuated by moving a stay arm.

From the EP 0 276 678 A2 a support fitting with a helical compression spring for a tiltable wing has become known, which exerts a closing torque when the wing is closed and a holding torque on the opening arm when the wing is tilted.

The DE 10 2015 000 452 A1 discloses an assist fitting with a spring that assists both opening and closing of a window.

From the DE 23 57 019 A1 a spiral spring for opening support of a skylight has become known.

The DE 549 635 A discloses a scissor-like support fitting with rigid scissor arms and a spring placed around a scissor joint to support the opening of a skylight window.

From the DE 511 622 A Another scissors-type support fitting has become known which has a lever scissors with several turns.

The DE 10 2012 106 191 B4 discloses a support bracket with two rigid arms connected by a pivot. In order to save installation space, a spring is mounted in the direction of the axis of rotation in a space which is formed between the arms by the arms being spaced apart from one another in the direction of the axis of rotation.

The known support fittings have a complex design and can only be adapted to different support functions or casement sizes to a very limited extent.

object of the invention

In contrast, the object of the invention is to provide a support fitting that is both structurally simple and versatile. It is also the object of the invention to provide a window or a door with such a support fitting.

Description of the invention

This object is achieved according to the invention by a support fitting according to patent claim 1 and a window or a door according to patent claim 7.

The dependent claims reflect preferred developments.

The object according to the invention is thus achieved by a support fitting for a movable, in particular at least tiltable, sash of a window or a door. The support fitting is designed as an assembly that can be arranged between a sash and a fixed frame of the window or door. The support fitting has a support arm and a spring element which is arranged or formed at one end on the support arm. The support arm has at least two, in particular exactly two, longitudinally extending arms. The cantilevers are arranged at an angle to one another. The cantilevers are elongated, i. H. longer than wide, developed. Preferably, the cantilevers have the same maximum width. The support arm has a pivot about which the support arm is pivotable. The pivot point is preferably located between the two arms. The support arm can thus be boomerang-shaped.

At least two cantilevers can be rotated relative to one another, but can be fixed rigidly relative to one another. For example, the cantilevers can be interlocked with one another, particularly at the pivot point. A screw connection or a quick-release fastener can be provided in order to adjust the two booms relative to one another and to connect them firmly to one another. Due to the adjustability of the support arm, the support fitting can be used selectively as opening support or closing support of one side of the sash, i.e. a horizontal side of the sash (top or bottom) or a vertical side of the sash.

A design that is particularly simple in terms of construction is when the support arm is designed in one piece.

Due to the specific design of the support arm and the spatial separation of support arm and spring element, a structurally particularly simple design support fitting results, which can be easily adapted to different sash sizes or purposes by simple structural changes.

The support fitting has a first rail. The support arm is connected to the first rail via the axis of rotation. Furthermore, a second end of the spring element is connected to the first rail, in particular pivotably. The first rail enables both the connection of the spring element and the support arm and the simple connection of the support fitting to the sash or the fixed frame. In order to ensure an optimal transmission of force from the spring element to the support arm, the support arm is preferably connected to the first rail at a higher level than the spring element. The support arm and/or the first rail can have a pedestal, so that the support arm is connected to the first rail in a simple manner at a higher level than the spring element.

The support arm is connected to the spring element at one end. At the other end, the support arm is pivotally mounted on a second rail.

The second rail can be designed for attachment to the fixed frame or leaf.

Preferably, the support arm and the spring element are designed as a retrofit kit, ie provided in addition to deployment arms.

According to the invention, the support fitting has two deployment arms between the first rail and the second rail, with the support arm being arranged between the deployment arms. The support arm and spring element can be retrofitted particularly easily if the support fitting has a third rail on which the spring element and the support arm are arranged. The third rail is preferably mounted on the first rail.

In order to simplify the assembly of the support fitting, the support arm can have a T-shaped projection in the area of its second end, which can engage behind the edges of a slot in the second rail. The T-shaped protrusion can then be used to mount the support bracket inserted into the slot and twisted. This enables tool-free assembly of the support fitting.

The ease of assembly and versatility of the support fitting is further increased if the spring element is arranged via a hook connection at the first end of the support arm. Particularly preferably, both the spring element and the support arm each have a hook, which engage in one another in the assembled state. The hook of the support arm can be designed in one piece with the support arm.

The spring force of the spring element can be adjustable in order to adapt to different sash sizes or different sash weights. The adjustability can be achieved in particular by an adjustability of the length of the spring element.

The angle a between the extension arms of the support arm, in particular essentially facing the second rail, can be more than approx. 180° in order to achieve closing support by the support fitting. The angle α can be less than approx. 180° in order to achieve opening support - in each case when using a tension spring. When using a compression spring, the situation is obviously reversed. If the angle a is in a range around 180°, both opening assistance and closing assistance can be achieved at least in sections.

In a particularly preferred embodiment of the invention, however, the angle α between the arms is between 0° and 165° in order to hold the wing in the position at a distance from the fixed frame by the restoring force of the spring element. Uncontrolled tilting of the sash, e.g. B. by wind power, unfavorable sash format and / or an arrangement of the glass pane far outside in the sash, is prevented.

The upper side of the support arm is preferably mirror-symmetrical to the underside of the support arm. The support arm can be mounted and rotated by 180° perpendicular to the axis of rotation, so that both a right-opening support fitting and a left-opening support fitting can be realized with the same components of the support fitting. In other words, the support arm can be mounted rotated 180° about the longitudinal axis of the first rail.

The object according to the invention is further achieved by a window or a door with a fixed frame, a leaf that can be moved relative to the fixed frame and a support fitting described here.

The sash of the window or door can be tilted and/or set aside from the fixed frame. The wing can then be designed to be displaceable parallel to the fixed frame. As an alternative or in addition to this, the wing can be designed such that it can be opened by rotation.

The first rail is preferably in the form of a wing rail that can be mounted on the wing. The second rail is preferably designed in the form of a sliding rail that can be displaced relative to the fixed frame.

The support fitting is preferably in the form of a pre-assembled assembly which is placed between the sash and the fixed frame and connects the sash to the fixed frame.

The spring element is preferably arranged in the support fitting in such a way that the spring element is tensioned when the wing is closed.

Further advantages of the invention result from the description and the drawing. The embodiments shown and described are not to be understood as an exhaustive list, but rather have an exemplary character for the description of the invention.

Detailed description of the invention and drawing

1

shows a view of a door with a tilting and sliding wing, in which a support fitting is provided between the wing and the fixed frame.

Figure 2a

shows an isometric view of the support fitting 1 in the fully open state.

Figure 2b

shows a side view of the support fitting Figure 2a .

Figure 2c

shows a plan view of the support fitting according to FIG Figs. 2a and 2b .

Fig. 2d

shows an enlarged partial view of the support fitting according to FIG Figure 2c in the area of a spring element and a support arm in the closed state of the support fitting.

Figure 3a

shows a part of the support fitting according to the Figs. 2a-2d in a side view, the support fitting being converted from a right-hand-opening support fitting to a left-hand-opening support fitting by a mirrored mounting of the support arm.

Figure 3b

shows a plan view of the part of the support fitting according to FIG Figure 3a .

1 shows a door 10 with a fixed frame 12 and a leaf 14 . The wing 14 is supported on its underside by a carriage arrangement 16 . When the wing 14 is off the fixed frame 12, it can be moved in the direction of an arrow 18 . The arrow 18 symbolizes the opening direction. The wing 14 according to 1 is shown as a right-opening wing. The displacement of the leaf 14 takes place, in particular, parallel to the fixed frame 12.

The carriage arrangement 16 has a first carriage 20 and in particular a second carriage 22 . The carriages 20, 22 run on a rail 24 .

The wing 14 has a handle 26 . The handle 26 is movable to a first handle position 26a in which the leaf 14 is in the closed position. In the closed position, the leaf 14 is firmly locked to the fixed frame 12. If the handle 26 is pivoted into a second handle position 26b , the wing 14 can be turned off from the fixed frame 12 and moved in the direction of the arrow 18. The wing 14 is then in an open position. If, on the other hand, the handle 26 is pivoted from the first handle position 26a into a third handle position 26c, the leaf 14 cannot be set down from the fixed frame 12 on one side, here on its underside. However, the wing 14 can then be moved away from the fixed frame 12 on one side, here with its upper side, so that a user can move the wing 14 into a tilted position. The wing 14 is connected on one side to the fixed frame 12 , here on its upper side, by means of a support fitting 28 .

Figure 2a shows the support fitting 28 in a parallel parked position of the wing 14 (see 1 ). The support fitting 28 has two deployment arms 30a, 30b . The deployment arms 30a, 30b connect a first rail 32a to a second rail 32b . The first rail 32a is on the wing 14 (see 1 ) can be arranged indirectly or - as in the present case - directly. The second rail 32b is in the present case designed in the form of a sliding rail and relative to the fixed frame 12 (see FIG 1 ) slidable around the wing 14 (see 1 ) in the direction of arrow 18 (see 1 ), to be able to move. The second rail 32b has slides 34a, 34b, in particular made of plastic.

A control arm 36 is pivotably arranged on the first deployment arm 30a. The control arm 36 allows the support bracket 28 to be locked in the fully open position in which the wing 14 (see Fig 1 ) altogether from the fixed frame 12 (see 1 ) can be parked and moved. In Figure 2a the support fitting 28 is in a fully open position, namely the position for sliding the wing 14 (see 1 ) shown. In the tilted position, the support fitting 28 is opened less than in the fully open position for sliding the leaf 14 (see FIG 1 ). The support fitting 28 is not latched by the control arm 36 in the tilted position.

The second deployment arm 30b is pivotally connected to a damper arm 38 of the support bracket 28 . A damper 40 connected to the damper arm 38 dampens the opening and/or closing movement of the support fitting 28.

A support arm 42 is arranged between the deployment arms 30a, 30b.

The support arm 42 is pivotally connected to the first rail 32a about a pivot point 44 . The support arm 42 is preferably attached by a rivet 46.

The support arm 42 is connected at its first end 48a to a spring element 50 and at its second end 48b to the second rail 32b. The spring element 50 is—in the present case indirectly—connected to the first rail 32a. The spring element 50 can be arranged such that it can pivot or be deflected relative to the first rail 32a.

Figure 2b shows the support fitting 28 in a side view. Figure 2b 12 illustrates that the support arm 42 and the spring element 50 are arranged vertically between the first rail 32a and the second rail 32b.

Figure 2c shows the support fitting 28 in a plan view. Out of Figure 2c It can be seen that the support arm 42 has a first extension 52a and a second extension 52b . The first cantilever 52a extends between the pivot point 44 and the spring element 50. The second cantilever 52b extends between the pivot point 44 and a connection 54 of the support arm 42 to the second rail 32b.

Fig. 2d FIG. 12 shows a part of the plan view of the support bracket 28 according to FIG Figure 2c , with the support fitting 28 in a partially closed position. Out of Fig. 2d it can be seen that the support arm 42 is connected to the spring element 50 via a hook connection 56 . The support arm 42 is connected to the second rail 32b by a T-shaped projection 58 which can be guided through a slot 60 in the second rail 32b in order to mount the support fitting 28 .

The spring force of the spring element 50 can be adjusted by the length of the spring element 50 being adjustable. Both the first cantilever 52a and the second cantilever 52b extend longitudinally since the maximum width B1, B2 of the cantilevers 52a, 52b is smaller than the length L1 , L2 of the cantilevers 52a, 52b.

In order to achieve opening support, the arms 52a, 52b have an opening angle α of between 0° and 165°, preferably between 100° and 150°, particularly preferably between 115° and 135°, with respect to the pivot point 44 . If the opening angle α > approx. 180°, in the exemplary embodiment shown >165°, the support fitting 28 can be used as a closing support.

The brackets 52a, 52b can be pivoted to each other about the pivot point 44 to select the opening angle α, but can be fixed relative to each other. The cantilevers 52a, 52b can, for example, have teeth (not shown) in the area of the pivot point 44 in order to be able to fix the cantilevers 52a, 52b rigidly to one another. In contrast, in the exemplary embodiment shown, the support arm 42 is designed in one piece.

Figure 3a Fig. 12 shows a side view of a part of the support fitting 28. Fig Figure 3a It can be seen that the support bracket 28 has a third rail 32c . The spring element 50 and the support arm 42 are arranged directly on the third rail, in particular pivotably. The third rail 32c thus makes it possible to combine essential components of the support fitting 28 in the form of a preassembled unit. Due to the third rail 32c, the support arm 42 and the spring element 50 are indirectly attached to the first rail 32a (see FIG Figure 2a ) arranged.

this in Figure 3a The pre-assembled unit shown can be retrofitted into an existing arrangement of the first rail 32a (see Figure 2a ) and second rail 32b (see Figure 2a ) to be built in. The connection to the first rail 32a (see Figure 2a ) is preferably done by at least one screw 62a, 62b. The at least one screw 62a, 62b can be screwed to a nut 64a, 64b . At least one nut 64a, 64b, preferably two nuts 64a, 64b, can be pressed with the third rail 32c.

The third rail 32c can also have a pedestal 66 . The pedestal 66 enables the support arm 42 to be positioned halfway up the height H of the spring element 50. The pedestal 66 can be formed in one piece with the third rail 32c.

Figure 3b shows the support fitting 28 according to FIG Figure 3a in a top view. From a comparison of Fig. 2d with the Figure 3b it can be seen that the support arm is 42 in Figure 3b mirrored to support arm 42 in Fig. 2d is arranged. Starting from the support arm 42 in Fig. 2d the support arm is 42 in Figure 3b mounted rotated about the longitudinal axis LA1 and LA2 of the first cantilever 52a and the second cantilever 52b, respectively. The longitudinal axes LA1 and LA2 extend perpendicularly to the axis of rotation of the support arm 42, which runs through the pivot point 44. The support fitting 28 is thereby in accordance with FIG Figure 3b left-opening used, whereas the opening fitting 28 according to Figs. 2a-2d is designed to open to the right.

The upper part of the T-shaped projection 58 is oriented at an angle β to the longitudinal axis LA2 of the second cantilever 52b, the angle β being between 70° and 110°, in particular between 80° and 100°, particularly preferably between 85° and 95° , amounts.

Taking all the figures of the drawing together, the invention relates in summary to a support fitting 28 which supports opening and/or closing in the area of one of the four wing sides. The support bracket 28 has an angled support arm 42 with a pivot point 44 . The support arm 42 has at least two arms 52a, 52b, in particular exactly two arms 52a, 52b. The pivot point 44 of the support arm 42 may be formed between the cantilevers 52a, 52b. The cantilevers 52a, 52b are each longer than they are wide. The support arm 42 is connected at one end to a spring element 50 so that pivoting of the support arm 42 about the pivot point 44 causes the spring element 50 to be stretched or compressed. The support arm 42 and the spring element 50 are preferably each arranged pivotably on a first rail 32a of the support fitting 28 . The support arm 42 is pivoted at the other end on a second rail 32b.

The pivot point 44 of the support arm 42 may be at a pedestal 66 of the first rail 32a. The pivot point 44 is preferably located at half the height H of the spring element 50. The support fitting 28 enables the opening and/or closing of a wing side to be supported in a structurally particularly simple manner.

Reference List

10

door

12

solid frame

14

wing

16

carriage arrangement

18

arrow (opening direction)

20

first trolley

22

second carriage

24

running rail

26

Handle

26a

first handle position (closed position)

26b

second handle position (open position)

26c

third grip position (tilt position)

28

support fitting

30a

first display arm

30b

second arm

32a

first rail

32b

second rail

32c

third rail

34a

glider

34b

glider

36

control arm

38

damper arm

40

mute

42

support arm

44

pivot point

46

rivet

48a

first end of support arm 42

48b

second end of support arm 42

50

spring element

52a

first outrigger

52b

second boom

54

connection

56

hook connection

58

T-shaped protrusion

60

Long hole

62a

screw

62b

screw

64a

Mother

64b

Mother

66

pedestal

B1

maximum width of the first boom 52a

B2

maximum width of the second boom 52b

L1

Length of the first boom 52a

L2

Length of the second boom 52b

LA1

Longitudinal axis of the first boom 52a

LA2

Longitudinal axis of the second boom 52b

a

Opening angle between the arms 52a, 52b

H

vertical height of the spring element 50

β

Angle between the T-shaped projection 58 and the longitudinal axis LA2 of the second bracket 52b

Claims (10)

1. Support fitting (28) for a movable leaf (14) of a window or a door (10), wherein the support fitting (28) can be arranged between a leaf (14) and a fixed frame (12) of the window or door (10), and wherein the support fitting (28) has a spring element (50), wherein the support fitting (28) has a support arm (42), wherein the support arm (42) has booms (52a, 52b) which extend in an elongate manner, are angled relative to one another and are pivotable about a common center of rotation (44), wherein the booms (52a, 52b) are rigidly fixable to one another, or the support arm (42) is formed in one piece, wherein a first end (48a) of the support arm (42) is connected to a first end of the spring element (50), wherein the support fitting (28) has a first rail (32a), which can be connected to the leaf (14) or fixed frame (12), wherein the support arm (42) is connected to the first rail (32a) via the rotary spindle (44) and the region of a second end of the spring element (50) is arranged on the first rail (32a), in particular pivotably, wherein the support fitting (28) has a second rail (32b), which can be arranged on the fixed frame (12) or on the leaf (14), wherein the support arm (42) in the region of a second end (48b) is pivotably arranged on the second rail (32b) and wherein the support fitting (28) has two spreader arms (30a, 30b) between the first rail (32a) and the second rail (32b), wherein the support arm (42) is arranged between the spreader arms (30a, 30b), wherein the support arm (42) is rotatably mountable by 180° perpendicularly to the rotary spindle which extends through the center of rotation (44), so that both a right-opening support fitting (28) and also a left-opening support fitting (28) can be achieved with the same components of the support fitting (28).
2. Support fitting according to claim 1, wherein the support fitting (28) has a platform (66) via which the support arm (42) is connected to the first rail (32a).
3. Support fitting according to either of the preceding claims, wherein the support arm (42) has a T-shaped projection (58) in the region of its second end (48b), which projection engages behind the edges of an elongated hole (60) in the second rail (32b).
4. Support fitting according to any of the preceding claims, wherein the spring element (50) is arranged via a hook connection (56) on the first end (48a) of the support arm (42).
5. Support fitting according to any of the preceding claims, wherein the length of the spring element (50) is adjustable in order to be able to adjust the restoring force of the spring element (50).
6. Support fitting according to any of the preceding claims, wherein the angle (α) between the booms (52a, 52b) is 90° or more than 90° and less than 180° in order for the leaf (14) to be kept in the position spaced apart from the fixed frame (12) by the restoring force of the spring element (50).
7. Window or door (10) comprising a fixed frame (12), a leaf (14), which is movable relative to the fixed frame (12), and a support fitting (28) according to any of the preceding claims.
8. Window or door according to claim 7, wherein the leaf (14) is tiltable and/or rotatable and/or displaceable relative to the fixed frame (12) in a position placed away from the fixed frame (12).
9. Window or door according to claim 8, wherein the first rail (32a) is designed in the form of a leaf rail mountable on the leaf (14) and the second rail (32b) is designed in the form of a sliding rail displaceable relative to the fixed frame (12).
10. Window or door according to any of claims 7 to 9, wherein the spring element (50) is tensioned when the leaf (14) is closed.

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