EP2806089B1 - Assembly for assisting an opening movement of a leaf of a window or a door - Google Patents

Description

The invention relates to an arrangement for supporting an opening movement of a wing with respect to a fixed frame of a window or a door, with a spring device having a spring element. Furthermore, the invention relates to a window or a door with an inventive arrangement and a method for assisted opening of a wing of a window or a door.

After unlocking, a large force must often be applied to open a heavy wing of a window or door. In particular, this problem occurs in tilt-sliding doors with a sash weight over 160 kg. Even with tilt and turn windows so heavy wings can be used that it is necessary to support the opening movement.

The EP 0 872 610 A2 relates to a roof window on which a spring device is provided which has a spring element and a clamping element for the spring element. By the spring device, the swing opening of the swing wing of the roof window is supported.

The DE 91 11 335 U1 relates to a lock for containers, such as suitcases, bags, containers or the like, wherein an arrangement for supporting an opening movement of a first container part with respect to a second container part with a spring device is described, which has a spring element, wherein a clamping element is provided which biases the spring element when unlocking the container.

The EP 0 635 776 A1 discloses an arrangement for assisting an opening movement of a pivotally mounted keyboard with a spring device having a spring element, wherein a clamping element is provided, which biases the spring element when unlocking the keyboard.

From the DE 103 00 655 A1 For example, a window or door with at least one wing is known, which is pivotable on a Blendrahmen is arranged, wherein a drive device is provided for automatically moving the wing relative to the frame. The drive device has a force and energy storage, which is designed to deliver its energy when opening the wing. In the arrangement of DE 103 00 655 A1 the power and energy storage is tensioned when closing the wing. This means that the power and energy storage is always tense when the window or door is closed. This can lead to fatigue of the power and energy storage.

Object of the present invention is therefore to remedy this situation.

This object is achieved according to the invention by a window or a door with the features of claim 1. This means that the spring element of the spring device is tensioned only immediately before the opening of the wing of the window or the door. In particular, the spring element can be relaxed when the wing of the window or the door is locked in a closed position or the window or the door. As a result, fatigue of the spring element can be prevented.

The scope of the invention also includes an arrangement having the features of claim 14.

According to the invention, the tensioning element is coupled to an espagnolette fitting. Here is the clamping element with the drive rod of the espagnolette fitting coupled. Accordingly, when the fitting is actuated to unlock the window or the door, the clamping element coupled to the fitting is displaced, thereby tensioning the spring element of the spring device. Then, when opening the wing, the spring element can still be supported on the clamping element and relax during the opening movement. This supports the opening movement. In particular, force peaks are intercepted when opening the wing. The arrangement according to the invention is preferably designed so that the wing does not open by itself after the wing has been unlocked.

The clamping element may be formed, for example, as a pin, or have such, which is coupled to the fitting of the window or the door.

Further advantages arise when the clamping element is decoupled when opening the window or the door of the spring device. As a result, the opening movement of the wing is not limited by the arrangement according to the invention. In addition, this measure makes it possible that the spring element does not automatically tension when closing the wing, since the spring device and the clamping element are decoupled when the wing is closed.

The spring device may preferably be pivotally attachable to the wing or fixed frame. As a result, when opening the sash, it can assume an optimum position which supports the opening movement.

The spring device can be arranged, for example, only pivotable about a bolt on the wing or fixed frame.

According to the invention, the spring device is arranged pivotably on a fastening part, which in turn can be fastened to the fixed frame or the wing. As a result, the stability of the arrangement according to the invention is increased.

According to one embodiment of the invention, a further spring element may be provided and the spring device may be pivotable against the spring force of the further spring element. Thus, the spring device can first be pivoted against the spring force of the further spring element when the wing is opened. Once the spring device and the tensioning element are decoupled, the spring device can be pivoted back by the spring force of the further spring element, so that the spring device occupies an approximately parallel to a frame spar or window spar alignment.

The spring device has a sleeve in which the spring element is arranged. As a result, the spring element is arranged protected on the one hand and on the other hand, the spring element is guided by the sleeve. Preferably, the spring element is arranged captive in the sleeve.

Particular advantages arise when the sleeve is slotted and the clamping element projects into the slot at least in an operating state. Through the slot, the clamping element is guided when the clamping element biases the spring element. In addition, the slot defines the relative movement of the tensioning element and the spring device when the spring element relaxes when the wing is opened. Due to the slot, it is possible that the clamping element can be moved relative to the sleeve.

The further spring element may be formed, for example, as a leaf spring. In this case, the further spring element can connect to the sleeve of the spring device and be supported on the fastening part. For this purpose, the sleeve may have a slot-like recess at one end, in which the further spring element is arranged. With a leaf spring as a further spring element, a provision of the spring device after releasing the clamping element of the spring device can be particularly easily effected. In addition, with a leaf spring as a further spring element results in a space-saving design of the arrangement, so that it can be easily arranged in the rebate air range between wings and fixed frame.

According to one embodiment of the invention can be provided that the sleeve is arranged with the wing closed at an angle a, 0 ≤ α ≤ 25 ° to the main plane of the window or the door. A particularly space-saving arrangement results when the sleeve is arranged parallel to the fixed frame or to the casement, when the wing is in a closed position. However, the support of the opening movement can be more effective if the sleeve is arranged with the wing closed, in particular after tensioning the spring element at an angle> 0 ° to the main plane of the window or the door.

The arrangement according to the invention is thereby preferably arranged in the rabbet area between the wing and fixed frame. Due to the positioning in the rabbet air area, the arrangement with the wing closed is invisible. For example, the window can be a turn-tilt window, ie a window in which the wing can be pivoted about a vertical axis into an open position or can be pivoted about a horizontal axis into a tilt-open position. Alternatively, the arrangement according to the invention can be used with a tilt-sliding door.

In the context of the invention also relates to a method for assisted opening of a wing of a window or door according to the invention, wherein when unlocking the window or door a spring element of a spring device is tensioned and then opened under relaxation of the spring element and pivoting of the spring device of the wing , By relaxing the spring element of the force required for a user to open the wing is reduced.

According to a variant of the method can be provided that after relaxation of the spring element, a clamping element is decoupled from the spring device. This means that the opening movement of the wing is not limited by the spring device. In addition, this ensures that the spring element is relaxed both in an open position of the wing and in a closed position of the wing.

According to a further variant of the method can be provided that after decoupling of clamping element and spring device, the spring device is pivoted spring loaded. This can be ensured that the spring device is not aligned with the wing open transversely to the frame plane but is arranged approximately parallel to this. Thereby, damage to the spring device can be prevented.

It can also be provided that when closing the wing, the spring device strikes against the clamping element and is deflected by this. Subsequently, when the window or door is locked, i. brought the fitting in its locking position, the clamping element releases the spring device and this is pivoted by the further spring element, so that the mouth of the slot of the sleeve of the spring device is arranged opposite the clamping element, so that this when unlocking the window or the door back in can retract the slot of the sleeve and thereby tension the spring element.

Fig. 1

teilweise ein Fenster mit einer Anordnung zur Unterstützung einer Öffnungsbewegung eines Flügels;

Fig. 2

eine erfindungsgemäße Anordnung entsprechend einer Stellung bei verriegeltem Fenster;

Fig. 3

die erfindungsgemäße Anordnung bei entriegeltem Fenster;

Fig. 4

die erfindungsgemäße Anordnung zu Beginn einer Öffnungsbewegung des Flügels;

Fig. 5

die erfindungsgemäße Anordnung bei vollständig geöffnetem Flügel;

Fig. 6

die erfindungsgemäße Anordnung bei geschlossenem aber entriegeltem Fenster;

Fig. 7

eine Explosionsdarstellung der erfindungsgemäßen Anordnung.

Preferred embodiments of the invention are shown schematically in the drawing and are explained below with reference to the figures of the drawing. Show it:

Fig. 1

partly a window with an arrangement for assisting an opening movement of a wing;

Fig. 2

an inventive arrangement according to a position when the window is locked;

Fig. 3

the inventive arrangement with unlocked window;

Fig. 4

the arrangement according to the invention at the beginning of an opening movement of the wing;

Fig. 5

the inventive arrangement with the door fully open;

Fig. 6

the inventive arrangement with closed but unlocked window;

Fig. 7

an exploded view of the arrangement according to the invention.

The FIG. 1 shows a window 1 with a fixed frame 2 and a wing 3, which is in the position shown in a tilt-open position. An arrangement 4 according to the invention is shown in a highly schematic manner in the upper air gap area. The arrangement 4 according to the invention can also be arranged on any other side of the window 1. For tilt-openable wings, however, a preferred location is in the upper area of the window 1.

The FIG. 2 shows an inventive arrangement 4 with closed, locked wing 3. The assembly 4 has a spring device 5, which comprises a sleeve 6, in which a spring element 7 is arranged. The sleeve 6 is formed slotted on opposite sides, in the illustration shown only the slot 8 can be seen. The spring device 5 is pivotable on a fastening part 9 arranged, which can be fixed in the present case on the fixed frame 2. In the illustrated, the closed position of the wing corresponding position, the spring device 5 is aligned substantially parallel to the window plane.

At a small distance from the spring device 5 is designed as a pin clamping element 10 can be seen, which is coupled to a fitting 11 of the window 1, in particular a drive rod 12 of the fitting. When unlocking the window 1, the drive rod 12 is moved in the direction of arrow 13. As a result, the clamping element 10 enters the slot 8 and in contact with the spring element 7 and a support plate 14 of the spring element 7. Upon movement of the drive rod 12 in the direction of arrow 13 and thus a movement of the clamping element 10 in the direction of arrow 13 thus the spring element 7 is tensioned, like this in the FIG. 3 can be seen. It can also be seen here that the tensioning of the spring element 7 alone does not lead to an opening movement of the wing 3. If, however, the wing 3 is pressed by a user, this opening movement is supported by the arrangement 4. In particular, while the spring device 5 and in particular the sleeve 6 is pivoted relative to the fixed frame 2 and the fastening part 9, as in the FIG. 4 you can see. At the same time, the spring element 7 relaxes, whereby the opening movement is supported. The spring element 7 is supported via the support plate 14 on the clamping element 10.

If the wing 3 is opened further, the tensioning element 10 is decoupled from the spring device 5. The spring device 5 is coupled via a further spring element 17 with the fastening part 9. As soon as the tensioning element 10 is decoupled from the spring device 5, the further spring element 17 can therefore pivot the spring device 5, then that it occupies an orientation which is approximately parallel to the frame plane. The further spring element 17 may be formed, for example, as a leaf spring. This situation is in the FIG. 5 shown. When fully open wing is the spring element 7, as is the FIG. 5 it can be seen, relaxed.

If the wing 3 is then closed again, then the fitting 11 is still in an unlocked position. Thus, the spring device 5 abuts against the clamping element 10 and is deflected against the spring force of the further spring element 17, as shown in the FIG. 6 you can see. If then the window 1 is locked and therefore the clamping element 10 moves in the direction of arrow 18, the spring device 5 is released and can by the action of the further spring element 17 back to the original in the FIG. 2 occupy shown position in which the clamping element 10 is arranged in front of the mouth of the slot 8.

In the FIG. 7 the arrangement according to the invention is shown in an exploded view. In addition to the previously described elements, a bolt 20 can be seen, over which the sleeve 6 is pivotally mounted on the fastening part 9. In addition, it can be seen that the sleeve 6 has a slotted extension 21 which receives the further spring element 17. In particular, the further spring element 17, which is designed as a leaf spring, can only be inserted into the slotted extension 21. The use of a leaf spring has the advantage that the spring device 5 can be deflected in two different directions against a spring force.

Furthermore, it can be seen that the sleeve 6 has a stop 22 against which the support plate 14 can strike when the spring element 7 is in a relaxed position. It is understood that the slot 8 is dimensioned so that it is slightly wider than the diameter of the clamping element 10. The clamping element 10 has a plate 23 with which it can rest on a slotted cuff rail 24. A coupling portion 25 is used for coupling with the drive rod 12 and the fitting 11. Not shown is a recording or a stop for the free end of the further spring element 17 on the underside of the fastening part. 9

Claims (14)

1. Window (1) or door having a fixed frame (2) and a leaf (3) which can be moved relative to the fixed frame (2) between at least one open position and one closed position, and a fitting (11) for locking and unlocking the window (1) or door and an arrangement (4) for supporting the opening movement of the leaf (3) with respect to the fixed frame (2) of the window (1) or the door, having a resilient device (5) which has a resilient element (7), wherein a tensioning element (10) is provided, characterised in that the tensioning element (10) tensions the resilient element (7) when the window (1) or door is unlocked and is coupled to the fitting (11).
2. Window or door according to claim 1, characterised in that the tensioning element (10) can be decoupled from the resilient device (5) when the window (1) or the door is opened.
3. Window or door according to either of the preceding claims, characterised in that the resilient device (5) is pivotably arranged on the leaf (3) or the fixed frame (2).
4. Window or door according to any one of the preceding claims, characterised in that the resilient device (5) is pivotably arranged on a securing component (9).
5. Window or door according to any one of the preceding claims, characterised in that an additional resilient element (17) is provided and the resilient device (5) can be pivoted counter to the resilient force of the additional resilient element (17).
6. Window or door according to any one of the preceding claims, characterised in that the resilient device (5) has a sleeve (6) in which the resilient element (7) is arranged.
7. Window or door according to claim 6, characterised in that the sleeve (6) is slotted and the tensioning element (10) protrudes into the slot.
8. Window or door according to any one of the preceding claims 5 to 7, characterised in that the additional resilient element (17) is constructed as a leaf spring.
9. Window or door according to claim 5 in combination with any one of the preceding claims 6 to 8, characterised in that the additional resilient element (17) adjoins the sleeve (6) of the resilient device (5) and is supported on the securing component (9).
10. Window or door according to any one of the preceding claims 6 to 9, characterised in that the sleeve (6) when the leaf (3) is closed is arranged at an angle α, 0 ≤ α ≤ 25° with respect to the main plane of the window (1) or the door.
11. Method for the supported opening of a leaf (3) of a window (1) or a door according to claim 1, wherein, when the window (1) or the door is unlocked, the resilient element (7) of the resilient device (5) is tensioned and the leaf (3) is subsequently opened with the resilient element (7) being relaxed and the resilient device (5) being pivoted.
12. Method according to claim 11, characterised in that, after relaxation of the resilient element (7), a tensioning element (10) is decoupled from the resilient device (5).
13. Method according to claim 12, characterised in that, after decoupling from the tensioning element (10) and resilient device (5), the resilient device (5) is pivoted in a resiliently loaded manner.
14. Arrangement (4) for supporting the opening movement of a leaf (3) with respect to a fixed frame (2) of a window (1) or a door, having a resilient device (5) which has a sleeve (6) in which a resilient element (7) is arranged, wherein the sleeve (6) is pivotably arranged on a securing component (9), and a tensioning element (10), characterised in that a connecting rod fitting is provided and the tensioning element (10) is coupled to the connecting rod of the connecting rod fitting, wherein, when the connecting rod fitting is actuated in order to unlock the window or the door, the tensioning element (10) is displaced and in this instance the resilient element (7) is tensioned and in the event of an opening movement of the leaf the sleeve (6) is pivoted relative to the securing component (9) and in this instance the resilient element (7) is relaxed.

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