EP3428376B1 - Lining for a tiltable and sliding wing and method for opening and closing a parallel sliding wing - Google Patents

Description

The present invention relates to a fitting for a tiltable and slidable sash according to the preamble of claim 1 and a method for opening and closing a sash that can be opened and moved in parallel according to the preamble of claim 10.

DE 20 2015 106 724 U1 discloses a fitting arrangement for a sliding sash that can be shut down and moved, in which a pivotable opening arm is connected to a damping arrangement in order to dampen a movement of the opening arm from the opening position into the closed position and vice versa. A similar fitting arrangement is also in the WO 2012/095831 A1 shown.

the WO 2016/026805 A1 discloses a fitting arrangement for a sliding and tilting wing, in which a wing is guided over an upper scissor stay. The scissor stay can either move the sash in a straight line into a tilted position or along a curved curve into a parallel parked position, from which the sash can then be moved. A control element is provided so that the upper opening scissor can guide the sash along two different movement paths, which includes an insertion link in which a control pin is guided. The disadvantage of this scissor stay is that the way the tilt opening is opened is very limited and the guidance on the entry gate is fragile.

the EP 0 268 748 discloses a stay-open device for a sash of a window, in which a carriage hits a stop buffer during a sliding-closing movement in order to release a locking device and then to be pivoted into the closed position by pivoting a support lever.

It is therefore the object of the present invention to create a fitting for a tiltable and slidable sash which also allows large opening widths when tilting and has improved handling. In addition, a method for opening and closing a sash that can be shut down in parallel is to be created that enables optimized movement, particularly when closing.

This object is achieved with a fitting having the features of claim 1 and a method having the features of claim 10.

In the case of the fitting according to the invention for a tilting and sliding sash, the sash can be releasably fixed in the deployed position via at least one stay-open scissor stay using a locking mechanism, with at least one damper being provided which unlocks the locking mechanism during a closing movement of the sash, so that the sash can then pivot from the parallel parked position into the closed position. The use of a damper to unlock the latching mechanism instead of a fixed stop has the advantage that, on the one hand, the impact noise during unlocking is reduced, which leads to improved handling, and the damper can also be used as a "flexible stop" which on the one hand unlocks the latching mechanism and on the other hand is movable, for example when the wing is moved from the closed position to the open tilt position.

According to the invention, the damper is designed as a linear damper, which is effective parallel to the direction of movement of the wing during displacement. In this case, the damper can comprise one or more linear dampers which are connected together to form a unit, it being possible for the linear dampers to be in the form of fluid dampers or gas dampers. The stroke of the damper is preferably at least 20 mm, preferably between 30 mm and 70 mm, in order to be able to provide damping forces over a longer distance. The damper with one or more linear dampers is preferably pretensioned in the extended position via an energy accumulator, so that the damper moves automatically into an initial position and is only compressed by fittings, the fittings being braked by damping forces.

According to the invention, the at least one scissor stay is pivoted when the sash is tilted, and the damper brakes an opening movement of the sash when it is tilted. As a result, the damper has a dual function: on the one hand, the locking mechanism is unlocked when the sash is to be moved from the parallel parked position to the closed position, and on the other hand, a hard impact of the sash during an opening movement into the tilted position can be prevented, since the damper Sash brakes before reaching the maximum opening position. By using a "flexible stop" in the form of a damper, the opening width during the tilting movement can be increased compared to a stationary stop.

In a further embodiment, the at least one scissor stay includes an arm with a guide, and the other arm of the scissor stay is guided displaceably on the guide when the same is pivoted. The guide can be designed, for example, as a slot or curve guide, where the other arm is guided over a bolt or other guide means. The two arms can therefore both be rotated relative to each other and also be displaced. This enables a particularly compact construction of the scissor stays, which fixes the two arms of the scissor stays in an articulated manner at a fixed distance on one side, in particular on the side of the window frame, for example on a connecting rod. Alternatively, the two arms of the scissor stays can also only be connected to one another in an articulated manner, in which case at least one of the arms is held displaceably on a linear guide.

The fitting according to the invention preferably comprises a control device for the wing, which has a handle element, by means of which one or more connecting rods can be moved in order to lock or unlock the wing. The handle element can be moved from a closed position into a sliding position, in which the wing is unlocked all around, in order to be pivoted from the closed position into a parallel parked position and then moved, and moved into a tilted position, in which the wing is on the Bottom is locked and is only performed at the top over the at least one scissor-stay. The sequence of movements of the handle element is preferably from the closed position to the sliding position and only then to the tilted position. The sliding position thus forms a middle position between the closed position and the tilted position, which simplifies handling, since the handle position is then similar to the handle positions of tilt and turn windows, with the difference that in the middle position parallel parking and sliding takes place, instead of pivoting the wing. The handle can be pivoted to switch the different positions, for example by about 90°. The closed position with the wing locked then corresponds to a position of the handle element pointing downwards.

Different locking mechanisms can be used to lock the sash in a parallel parked position. Are known curve guides with an angled end portion, the curve guide can be formed on a control arm, as for example in WO 2016/026805 A1 is shown, or a control arm is guided on a corresponding curve guide, as for example in the EP 1 959 080 is shown. The locking mechanism preferably comprises a spring, for example a leaf spring, in order to hold a locking element on the stay-open stay in the locked position. The latching element can be, for example, a head section of a bolt that connects the two arms of the scissor-stay to one another in an articulated manner. Other springs and latching elements can also be provided to implement a latching mechanism on the scissor stay.

In a further embodiment, the fitting comprises two scissor stays spaced apart from one another, which are connected to one another via at least one connecting rod on the side of the guide rail. Optionally, a second connecting rod can also be provided on the side of the sash, so that the stay-open stays can form a pre-assembled unit with the two connecting rods. The damper for unlocking the locking mechanism is preferably arranged between the two opening scissors, so that the two opening scissors can be optimally positioned on the opposite sides of the sash in order to be able to absorb the weight forces that occur. This avoids one of the opening scissors being spaced apart from one side of the sash by mounting the damper on one side of the two opening scissors; the arrangement of the damper between the opening scissors leads to optimized utilization of the installation space.

According to the invention, a stop that can be fixed to the window frame is provided, and the damper is arranged between the stop and a movable unit with the at least one scissor stay. The damper can thus be fixed in a stationary manner on the window frame and can then be compressed by the movable unit. For example, the damper can come into direct or indirect contact with a connecting rod that is linearly guided on the guide rail, optionally via sliding elements or rollers. This avoids lateral forces on the damper.

In the method according to the invention, a sash that can be shut off and moved in parallel is first brought from a closed position by a window frame into a parallel shut-off position, and there at least one scissor stay of the wing is secured or locked in the parallel shut-off position by a locking mechanism. The sash is then slid open to allow access to a building before the sash is then slid closed again until a damper supported on a frame or other component makes contact with a slidable unit on the sash and over the Dampening forces to brake the wing, the locking mechanism is unlocked. After unlocking the locking mechanism via the damper, the sash is pivoted from the parallel parked position to the closed position. By using a damper to unlock the locking mechanism, hard impact noises are avoided and the installation space in the area of the damper can also be optimally used. Optionally, the sash can be parked in parallel as well as tiltable, whereby the damper can also be used with wings that can only be parked in parallel.

In the method according to the invention, the damper is preferably moved back into the extended position when the wing is pivoted from the parallel parked position into the closed position. The damper is thus only used to unlock the locking mechanism, and when the sash is then pivoted along the curved path to the window frame, the damper can be moved back into an extended position. In the closed position, the damper can optionally be arranged at a distance from the displaceable unit with the wing.

In the embodiment according to the invention, the sash can be tilted out of the closed position by actuating a control device or parked in parallel. The damper brakes the sash when it is tilted in the opening direction, so that the damper not only unlocks the locking mechanism but also dampens the opening of the sash into the tilted position. This also enables the use of larger opening widths, since the scissor stay can be pivoted further via the damper than when using a rigid stop.

Figuren 1A und 1B

zwei Ansichten eines Fensters mit einem kipp- und schiebbaren Flügel in zwei unterschiedlichen Positionen;

Figur 2

eine schematische Ansicht des Beschlages für den kipp- und schiebbaren Flügel;

Figuren 3A und 3B

zwei Detailansichten des Beschlages in der Schließposition;

Figuren 4A bis 4D

mehrere Ansichten des Beschlages in der Auslösestellung in der parallel abgestellten Lage;

Figuren 5A und 5B

zwei Detailansichten des Beschlages in der Kippstellung, und

Figur 6

eine Draufsicht auf einen modifizierten Beschlag in einer Auslösestellung.

The invention is explained in more detail below using several exemplary embodiments with reference to the accompanying drawings. Show it:

Figures 1A and 1B

two views of a window with a tilting and sliding sash in two different positions;

figure 2

a schematic view of the fitting for the tilting and sliding wing;

Figures 3A and 3B

two detailed views of the fitting in the closed position;

Figures 4A to 4D

several views of the fitting in the release position in the parallel parked position;

Figures 5A and 5B

two detailed views of the fitting in the tilted position, and

figure 6

a plan view of a modified fitting in a release position.

In the Figures 1A and 1B a window is shown which can be mounted on a building opening and comprises a window frame 2 on which a tiltable and sliding wing 4 is arranged. The wing 4 comprises a wing frame with a filling element, although other wings can also be used. The wing 4 is guided on an upper guide rail 3 and a lower guide rail 5 . In Figure 1A the closed position is shown, in which the wing 4 is arranged next to a fixed panel 7 . From this position, the wing 4 can be tilted so that an upper part of the wing protrudes from the frame 2 and a lower part of the wing is supported on a support and pivots only slightly. The support can be formed by carriages that are held on the guide rail 5 so that they can be moved. When tilting the wing 4 is guided over the vertical profiles of the frame 2.

As in Figure 1B is shown, the wing 4 can also be moved along the guide rails 3 and 5. For this purpose, the wing 4 is first pivoted into a parallel parked position, which is arranged in front of the window frame 2 in order to then move the wing 4 in front of the fixed field 3 . For this purpose, an actuating element 6 in the form of a rotatable handle is provided on the wing 4, which locks the wing 4 in the downward position and unlocks it in the rotated position by 90° in order to be able to park and move the wing in parallel. In the upward position, the wing 4 can be tilted.

In figure 2 the fitting for moving the wing 4 is shown without the wing 4 and the frame 2. The actuating element 6 can be pivoted from the locked position essentially through 90° into the position 6′ and from there through a further 90° into the position 6″, which allows the leaf 4 to be tilted. By turning the actuating element 6, a connecting rod 8 is displaced , which is connected to further drive rods 12 via corner drives 9. Locking elements 10 are fixed to the drive rods 8 and 12 and engage with locking plates 11 in the locking position. so that the sash can be pulled from the frame 2 into a parallel position. If the actuating element 6 is rotated further into the tilted position according to position 6", further locking plates 13 are provided in the lower area of the wing, which lock the locking elements 10 in the lower area, so that only the locking elements 10 in the upper area and on the vertical sides of the wing 4 are unlocked.

The wing 4 is supported in the lower area on two carriages 50 which can be moved along a guide rail 5 . Each carriage 50 comprises a pivotable raising arm 51 and a support profile 52 which is articulated to the raising arm 51 and on which the wing 4 is supported. The lower carriages 50 are coupled to one another via a connecting rod 53 and at least one of the carriages 50 has a locking mechanism in order to be able to lock the wing 4 in a parked position. The locking mechanism can be unlocked via a stop 54 that can be fixed on the window frame, and the carriage 50 can be designed as shown in FIG EP 2 538 009 B1 is described. The wing 4 is held on the carriage 50 via support elements 55 .

In the upper region of the wing 4, two scissor stays 20 are provided for guidance, with the use of only a single scissor stay 20 for guiding the sash 4 being possible. Each scissor stay 20 comprises a first arm 21 and a second arm 22 which are articulated to each other. The arm 21 is longer than the arm 22 and is connected on one side via a joint 23 to a connecting rod 24 which is mounted on the wing 4 . On the opposite side, the two scissor stays 20 are connected to one another via a further connecting rod 25, and the arms 21 and 22 are arranged on this connecting rod 25 in an articulated and non-displaceable manner. Sliding elements are located on the connecting rod 25, and rollers that can be moved on the guide rail 3 can optionally also be used. As a result, the wing 4 can be moved on the guide rails 3 and 5 in the parallel parked position.

Also provided in the upper area of the wing 4 is a damper 30 which is designed as a linear damper and has a damper housing 31 and a piston rod 32 which can be displaced relative to the damper housing 31 . The damper 30 can be designed as a fluid damper or gas damper.

In Figure 3A a closed position of the leaf 4 is shown, which is arranged sealed on the window frame 2. The two opening scissors 20 are in the folded position. The damper 30 is arranged in extension of the connecting rod 25 in the longitudinal direction, with a gap being provided between the front end of the connecting rod 25 and the damper 30 . The damper 30 is fixed to the damper housing 31 via fastening means 34 on the window frame, and the piston rod 32 protrudes towards the connecting rod 25 . The piston rod 32 is pretensioned in the extended position by means of an energy accumulator, not shown. It is of course also possible to rotate the damper 30 and fix the piston rod to the frame and let the damper housing 31 protrude towards the connecting rod 25 or some other component.

Depending on the position of the actuating element 6, the wing 4 can now be tilted from the closed position, as indicated by the arrow 60, so that the wing 4 moves in a straight line away from the window frame 2. Alternatively, the wing 4 can be pivoted into a parallel parked position, the wing 4 then undergoing a curved movement, as indicated by the arrow 61 .

If the wing 4 is pivoted into a parallel parked position, it can be moved along the guide rails 3 and 5 in this position. The parallel parked position is in the Figures 4A to 4D shown. In this position, the two scissor stays 20 are each latched via a latching mechanism, it also being possible for only a single latching mechanism to be provided. In the exemplary embodiment shown, the locking mechanism is formed by a leaf spring 27 which is fixed to the arm 22 and is in engagement with a head of a pivot pin 26 which can be displaced along a guide 28 in the arm 22 . The leaf spring 27 is pressed onto the arm 22 with one end 28 and can be lifted against the spring force by the head of the pivot pin 26 in order to be unlocked. This lifting of the leaf spring 27 by moving the head against the chamfer at the end leads to an unlocking and a movement of the hinge pin 26 along the guide 28, so that the arms 21 and 22 of the scissor stay 20 can be pivoted towards one another and folded in until the closed position is reached. The locking mechanism shown is particularly flat, like this Figure 4D shows, but other latching mechanisms with curved guides, spring elements or latching devices can also be provided, which ensure that the scissor stay 20 latches in a parked position.

In order to release the latching of the scissor stay 20 in the parallel parked position, the unit consisting of leaf 4, the scissor stay 20 and the two connecting rods 24 and 25 moves in the closing direction until one end of the connecting rod 25 or another component of this unit directly or indirectly strikes the damper 30 and is thereby slowed down somewhat. The sliding movement of the wing 4 leads to the compression of the damper 30 by pushing the piston rod 32 into the damper housing 31, and the damping forces thus generated lead to the unlocking of the scissor stay 20, in that the leaf spring 27 is lifted off the head of the pivot pin 26 and the pivot pin 26 can move along the guide 28. By unlocking the locking mechanism, the scissor stay 20 is now pivoted with the arms 21 and 22 about the two joint axes 29, which are arranged on the connecting rod 25 at a fixed distance from each other.

After the locking mechanism has been unlocked, the wing 4 moves in a curved movement towards the window frame 2, with the pivoting of the arm 21 about the axis of the joint 23 on the wing 4 moving the connecting rod 25 away from the damper 30, which thus is only initially compressed and then relaxed again by moving the connecting rod 25 in the opposite direction. In the closed position, the front end of the connecting rod 25 is at a distance from the damper 30, which is moved back into the extended position by an energy accumulator.

In Figure 4D shows that the connecting rod 25 is held on one or more sliding elements 15 which can be moved in the U-shaped guide rail 3 . However, other guide means can also be used.

In the Figures 5A and 5B the fitting with the scissor stays 20 is shown in a tilted position. In the tilted position, the sash 4 is only pivoted linearly away from the window frame 2 in the upper region, with no lateral movement of the sash 4 taking place. As a result, the opening scissors 20 pivot about the axes of the joints 23 on the leaf 4, and the connecting rod 25 moves in the direction of the damper 30, which is compressed by the movement of the connecting rod 25 during opening and thus dampens an opening movement until the maximum opening position is reached . The damper 30 is supported on the fastening means 34 on the frame 2 and can thus prevent a hard impact of the sash 4 during a tilting movement in the opening direction. The damper 30 can thus cause not only the unlocking of the locking mechanism but also a braking of an opening movement of the leaf 4 when tilting.

In the illustrated embodiment, the damper 30 is arranged at the end of the connecting rod 25 in order to cooperate with an end face of the connecting rod 25 . It is of course also possible to provide other components between the damper 30 and the connecting rod 25, which, however, cause no fundamental change in the power transmission for the various movements of the wing 4.

In figure 6 another exemplary embodiment is shown, in which two opening scissors 20 are provided, and the damper 30 is arranged between the two opening scissors 20 . This leads to the advantage that the scissor stays 20 can be mounted further to the outside in relation to the sash 4, thus ensuring improved power transmission. The damper 30 is supported on one side on a stop 35 on the frame 2 and is again designed as a linear damper with a damper housing 31 and a piston rod 32 that can be inserted therein. A driver mounted on the connecting rod 25 acts on the damper housing 31, so that the same functionality as in the embodiment of FIG Figures 1 to 5 is achieved, only with the further advantage that the damper 30 releases the lateral space and can be arranged in a central area of the wing.

The damper 30 is preferably equipped as a linear damper, in particular as a fluid damper with a damping liquid such as silicone oil. Other fluid dampers can also be used, and it is also possible to couple a plurality of dampers 30 to one another, which then together form a damper. The coupling can be done by connecting several dampers in parallel or in series. The stroke of the damper is preferably in a range between 30 mm and 70 mm to allow large opening widths of the wing 4 when tilting.

Instead of the linear damper shown, rotary dampers or other dampers can also be used, which form a flexible stop, on the one hand to unlock the locking mechanism for locking the scissor-stay 20 to allow and on the other hand to move a damping during an opening movement of the wing 4 when tilting.

In a method for opening and closing a sash that can be parked and displaced in parallel, the wing is first moved from a closed position into a parked position in parallel and latched in the parked position in parallel via a locking mechanism. The locking mechanism can be effected accordingly by the leaf spring 27, as in the illustrated exemplary embodiments, or by other locking mechanisms. The wing 4 can then be moved in the locked position along the guide rails 3 and 5 in the opening direction and then back in the closing direction. During a movement in the closing direction, the displaceable unit consisting of leaf 4 and the scissor stays 20 striking a damper 30 unlocks the locking mechanism, with the striking effect being able to take place both directly and through the interposition of further components. By unlocking the locking mechanism, the leaf 4 can then be pivoted from the parallel parked position back into the closed position. Optionally, the leaf 4 can also be moved from the closed position into the tilted position, with the fitting also being able to be used without the possibility of tilting.

In the exemplary embodiment shown, the scissor stays 20 are formed by two arms 21 and 22 which are held together in an articulated manner via a hinge pin 26 and are also displaceable via the guide 28 . It is also possible to design the arms 21 and 22 only to be articulated and not displaceable, in which case, for example, a corresponding sliding element can be provided on the shorter arm 22 on the side facing the frame 2 in order to be able to fold the stay-open stays 20 together and swing them out.

The two opening scissors 20 and the connecting rods 24 and 25 are preferably not visible in a closed position in a gap between the frame 2 and the wing 4 arranged.

Reference List

2

frame

3

guide rail

4

wing

5

guide rail

6

actuator

6', 6"

position

7

fixed field

8th

connecting rod

9

corner drive

10

locking element

11

locking plate

12

connecting rod

13

locking plate

15

sliding element

20

display scissors

21

poor

22

poor

23

joint

24

connecting rod

25

connecting rod

26

pivot pin

27

leaf spring

28

guide

29

joint axis

30

mute

31

damper housing

32

piston rod

34

fasteners

35

attack

50

trolley

51

display arm

52

support profile

53

connecting rod

54

attack

55

support element

60

Arrow

61

Arrow

Claims (11)

1. Fitting for a tiltable and slideable wing (4) having at least one stay (20) with two arms (21, 22) connected to one another in an articulated manner, wherein the at least one stay (20) is held on a guide rail (3) in a displaceable manner on one side and is connected to a wing (4) on the opposite side, wherein the at least one stay (20) can be latched in an extended position of the wing (4) by means of a latching mechanism (27) and the wing can be moved along the guide rail (3) in the latched position, characterized in that
   at least one damper (30) is provided, by means of which the latching mechanism (26, 27) can be unlatched during a closing movement of the wing (4), so that the wing (4) can then pivot out of the parallel parked position into the closed position, wherein the damper (30) is designed as a linear damper which is effective parallel to the direction of movement of the wing (4) during displacement, wherein a stop (34, 35) which can be fixed to a frame (2) is provided and the damper (30) is arranged between the stop (34, 35) and a displaceable unit having the at least one stay (20), wherein the damper (30) can be fixed in a stationary manner to the frame and can be compressed by the displaceable unit, wherein, when the wing (4) is tilted, the at least one stay (20) is pivoted and the damper (30) brakes an opening movement of the wing (4), and in the tilted position the wing (4) is pivoted away from the frame (2) only linearly in the upper region, wherein no lateral movement of the wing (4) takes place, so that the at least one stay (20) pivots about an axis of a joint (23) on the wing (4).
2. Fitting according to claim 1, characterized in that the stroke of the damper (30) is at least 20 mm, preferably between 30 to 70 mm, and the damper (30) is pretensioned into the extended position via a force accumulator.
3. Fitting according to claim 1 or 2, characterized in that the at least one stay (20) has on one arm (22) a guide (28) on which the other arm (21) is displaceably guided when the stay (20) is pivoted.
4. Fitting according to one of the preceding claims, characterized in that the fitting comprises a control device for the wing (4), which has a handle element (6) by means of which drive rods (8, 10) can be moved in order to lock or unlock the wing (4).
5. Fitting according to claim 4, characterized in that the handle element (6) is movable from a closed position into a sliding position, in which the wing (4) is circumferentially unlocked to be parked and displaced in parallel, and the handle element (6) is further movable into a tilted position, in which the wing (4) is locked on the underside and guided on the upper side via the at least one stay (20).
6. Fitting according to claim 5, characterized in that the sequence of movement of the handle element (6), starting from the closed position, is the sliding position and then the tilting position.
7. Fitting according to one of the preceding claims, characterized in that the latching mechanism comprises a spring (27) for latching a latching element (26) on the at least one stay (20) in the parallel extended position of the wing (4).
8. Fitting according to one of the preceding claims, characterized in that two stays (20) are provided, which are connected to each other via a connecting rod (25) on the side of the guide rail (3).
9. Fitting according to claim 8, characterized in that the damper (30) is arranged between the two stays (20).
10. Method for opening and closing a wing which can be parked and displaced in parallel, having the following steps:

    - parallel parking of a wing (4) from a frame (2) from a closed position and latching of at least one stay (20) of the wing (4) in a parallel parked position by a latching mechanism (26, 27);

    - displacing the wing (4) in the opening direction;

    - displacing the wing (4) in the closing direction until a damper (30) supported on a frame (2) comes into contact with the displaceable unit with the wing (4) and the latching mechanism (26, 27) is unlocked via damping forces for braking the wing (4), and

    - pivoting the wing (4) from the parallel parked position into the closed position,

    characterized in that the wing (4) can be selectively tilted or parallel parked from the closed position by actuating a control device, and the damper (30) brakes the wing (4) when tilting in the opening direction.
11. Method according to claim 10, characterized in that the damper (30) is moved back into the extended position by a force accumulator when the wing (4) is pivoted from the parallel parked position into the closed position.

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