EP4215705A2

EP4215705A2 - Closing/opening mechanism for a window

Info

Publication number: EP4215705A2
Application number: EP23150853.2A
Authority: EP
Inventors: Thien VAN NGUYEN
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-17
Filing date: 2023-01-10
Publication date: 2023-07-26
Also published as: EP4215705A3

Abstract

A closing/opening mechanism for a window with frame hinged pivotably in a case so as to enable the window to open or close as it is pivoted in or out of the case which closing/opening mechanism has a length and a cross section making it suitable for embedding between the sides of a groove in the window frame and comprising: a pivotable connection which can activate the closing/opening mechanism; a fixed component for stationary fitting in the groove; a movable component connected to the pivotable connection such that the pivotable connection when moving between a first and a second stop position moves the movable component linearly between two outer positions. The closing/opening mechanism comprises a resilient component connected to the movable component such that the movable component causes the resilient component to be between a loaded and an unloaded state when the movable component is moved between the two outer positions which resilient component is in an unloaded state when the closing/opening mechanism is activated, whereby the closing mechanism is resiliently retained in the activated state by the resilient component.

Description

The invention relates to a closing/opening mechanism for a window with frame hinged pivotably in a case so as to enable the window to open or close as it is pivoted in or out of the case which closing/opening mechanism has a length and a cross section making it suitable for embedding between the sides of a groove in the window frame and comprising: a pivotable connection which can be pivoted in a first direction to a first stop position wherein it activates the closing/opening mechanism such that the closing/opening mechanism will retain the window in a closed position in the case which pivotable connection can also be pivoted in a direction opposite to the first direction to a second stop position wherein it has deactivated the closing/opening mechanism such that the window can be pivoted in and out of the case; a fixed component for stationary fitting in the groove; a movable component connected to the pivotable connection such that the pivotable connection when moving between the first and second stop position moves the movable component linearly back and forth between two outer positions.
In prior art handle operated closing/opening mechanisms in windows are often provided with a mechanism giving the user a sensible indication of the handle being turned so much that the window is locked in its closed position. At the same time this mechanism ensures that the window does not open accidentally, e.g. when strong wind causes the window to vibrate. In prior art the mechanism itself is arranged in connection with the handle. This means that the window does not comprise this mechanism when the handle with mechanism is not mounted on the window. When windows are being transported, they are normally not provided with handles as it is thereby avoided that handles "protrude" beyond the window, resulting in possible closer stacking of these by placing the windows flatly against each other. This is a disadvantage as vibrations may cause windows without handles to open. This disadvantage is particularly apparent when new windows are being transported, as for spatial reasons transport most often takes place without mounted handle. When many windows are being transported, e.g. by train or truck, unfortunately sometimes considerable damages to windows occur because they have pivoted freely out of and into their cases.
Therefore, closing/opening mechanisms in new windows are sometimes provided with a locking mechanism which must be removed in order for the handle to be mounted and moved. This prevents the problems with new windows opening during transport. It turns out that the problem with windows opening due to vibrations also occurs in windows having been opened for the first time. There is therefore a need for a solution with which a window can be provided with a closing/ opening mechanism which prevents the window from opening unintentionally.
It is furthermore an aim of the invention to provide an alternative solution.
This is remedied by the present invention as the closing/opening mechanism comprises a resilient component connected to the movable component such that the movable component causes the resilient component to be between a loaded and an unloaded state when the movable component is moved between the two outer positions, which resilient component is in an unloaded state when the closing/opening mechanism is activated, whereby the closing mechanism is resiliently retained in the activated state by the resilient component.
By providing the closing/opening mechanism itself with a resilient component which is in an - essentially - unloaded state when the movable component is in its closing position (activated), the closing/opening mechanism is retained in its closing position for as long as the movable component is not affected with a force greater than that required to bring the resilient component into its loaded state. By adapting the resilient component to the forces which may arise during vibrations to which a window is exposed in normal use, the retaining force can be adapted such that these vibrations do not cause the movable component to move from its closing position to its opening position.
In one embodiment the closing/opening mechanism comprises a resilient component which is in an unloaded state when the movable component is in one of its two outer positions but is in a loaded state when the movable component is between the two outer positions.
By providing the closing/opening mechanism with a resilient component which is unloaded when the movable component is in its outer positions it is achieved that a user will sense when the movable component is moved to both of these positions. Thus the user will not only be able to sense when the window is locked but also be able to sense - by an increased requirement of force - when he/she moves the movable component away from this outer position and again be able to sense when he/she has moved the movable component further on to its second outer position.
In one embodiment the resilient component and the movable component are mutually adapted such that the resilient component is loaded by part of it being pressed beyond the cross section of the closing/opening mechanism by the movable component when the movable component is in a position between its outer positions.
By allowing part of the resilient component to be pressed beyond the cross section of the closing/opening mechanism it is possible to mount the closing/opening mechanism in a groove adapted to the cross section and thereby use the groove itself as an abutment for the resilient component. This is advantageous as, neither fully nor partially, a retainer element must be established against which the resilient component must be deformed. This is essential as it is a well-known problem that the space in the window groove is very limited. Furthermore, it is a technically simple solution that with this solution the already inherent technical features of the window, such as the sides in the window groove, may be utilized as these do not have to be established but already exist.
In one embodiment the resilient component is fixedly connected to the fixed component and adapted to the movable component of the closing/opening mechanism such that part of the resilient component is displaced beyond the cross section of the closing/opening mechanism when part of the movable component hits the resilient component when the movable component is moved between its two outer positions.
By mounting the resilient component fixedly connected to the fixed component a simple construction with few movable components is achieved.
In one embodiment the resilient component is made with two sides which are retained with respect to the fixed component and mutually adapted to part of the movable component such that components on the two sides are displaced resiliently by the movable component when the movable component is moved between its two outer positions.
In this embodiment the movable component hits the two sides of the resilient component. This occurs when it is moved between these and thereby a symmetrical load on both the resilient component and the movable component is achieved, resulting in an extension of the lifespan of these.
In other aspects, the invention relates to a window as indicated in claim 6 and an adjustable closing/opening mechanism for a window with a frame as indicated in claims 7 and 8.
An embodiment of the invention will now be explained with reference to the figures wherein:

fig. 1 shows a perspective view of a window with window frame;
fig. 2 shows section A from figure 1;
fig. 3 shows a sectional view of a window frame with a displaceable component and a resilient component;
fig. 4 shows a sectional view of a window frame with a movable component held in active position;
fig. 5 shows a sectional view of a window frame provided with a movable component in a position deforming the resilient component;
fig. 6 schematically shows an embodiment where a movable component is connected to a pin;
fig. 7 shows a perspective and schematical view of an embodiment of a mechanism with adjustable braking force;
fig. 8 shows a perspective and schematical view of an embodiment of a mechanism with adjustable braking force;
fig. 9 its three subfigures 9a, 9b, and 9c schematically show how a converter can be pivoted more or less when the braking force is adjusted by means of a slider.

Figure 1 shows an embodiment of a window with frame 1 which is pivotably hinged in a case (not shown in the figures). The window can be opened or closed by pivoting it in or out of the case and it comprises a closing/opening mechanism 2 embedded in a groove in the window frame. Closing/opening mechanism comprises a pivotable connection 3 comprising a handle 5 which can be turned in a first direction clockwise or counter-clockwise to a first operating position and in a second opposite direction to a second operating position.
In figure 2 section A from figure 1 is shown enlarged and here it appears more clearly that the closing/opening mechanism comprises a fixed component 2 for stationary fitting in the groove and a pin 4 arranged on a movable component which via the pivotable connection can be moved with respect to the fixed component between a closing position in which the closing/opening mechanism is activated and thus can retain the window in its closed position in the case and an opening position in which the closing/opening mechanism is deactivated such that the window can be pivoted out of the case. The movable component on which the pin 4 is arranged is an internal component which is displaced when the handle 5 (shown in figure 1) is turned. Therefore, the movable component is not visible in figure 2 but a particular embodiment of the connection between the movable component 6 and the pin 4 will be explained below with reference to figures 6 and 7.
Figure 3 shows the movable internal component 6 on which the pin 4 (shown in figure 2) is arranged. At the top of figure 3 a rod 10 is seen. This rod is part of a retaining mechanism which can retain the window fixed in positions between fully opened and fully closed. This retaining mechanism is connected to the handle 5 such that turning the handle 5 causes a rotation of the rod 10 which in turn causes a retention of the window. Rotation of the handle is converted into a linear movement of the movable component 6 which in turn via a so-called converter 11 is converted into a rotation of the rod 10 which then affects a brake arrangement. This brake arrangement is a known mechanism which can retain an open window in any position between fully opened and fully closed. Such braking mechanisms/ arrangements are well known to the person skilled in the art and will therefore not be discussed in further detail in this application.
The entire closing/opening mechanism is arranged in a completely conventional manner in a groove 30 in the window frame 1.
Figure 3 shows an embodiment in which the movable component 6 is made with two recesses 12, 12 a arranged symmetrically on each side of a longitudinal central axis C (shown in figure 4). At the same time, the movable component 6 is made with a tip 13 behind which the two recesses 12, 12a are made. In figure 3 the movable component 6 is shown in a position in which it is located when the window - during normal use - is open and the movable component 6 can thus move upwards from the position shown in figure 3 as shown by an arrow. The upward movement can initially take place between the legs 26, 26a of a resilient component 14 and without significant deformation of the resilient component 14. At some point the tip 13 will hit two bends 18, 18a on the resilient component 14 and once this occurs the resilient component will deform elastically.
In figure 4 the movable component is pushed forward relative to the position in figure 3 and in the position shown in figure 4 the movable component 6 is retained in the advanced position by the resilient component 14 (also referred to as spring/leaf spring or clip in the following) as the two bends 18a, 18 have engaged with the two recesses 12a, 12 made behind the tip 13 of the movable component 6. In the embodiment shown, the resilient component 14 itself is made as a bent leaf spring, comprising the two legs 26a, 26, each made with their own bends 18, 18a. In the embodiment shown, the leaf spring 14 is made as an elongated U with straight sides and fixed in the groove 30 at its corners 17, 17a by two holding devices/ protrusions 20, 20a fixedly mounted in the fixed component of the closing/opening mechanism.
The leaf spring 14 in figure 4 thus retains the movable component 6 in its advanced state and this is also the state of the movable component 6 when the window is closed.
In order to open the window, the movable component must be moved in the direction shown by an arrow in figure 4 and as it is also seen in figure 4, the wider areas of the tip 25, 25a must pass the bends 18, 18a of the spring/leaf spring 14 and this will occur during resilient deformation of the leaf spring.
If the leaf spring is designed in a way that its two legs 26a, 26 lie close to the sides of the groove 30 passage of the wider areas 25, 25a of the tip 13 through the bends 18, 18a will require that the bends 18a, 18 themselves deform elastically. The construction itself with two legs lying close to the inner sides of the groove and comprising two bends 18a, 18 is thus a strong construction in terms of strength and this means that in this embodiment it will be difficult to have the wide areas 25, 25a of the movable component pass the two bends 18, 18a. In practice it has even turned out that such a construction will make it difficult for users to open the window by turning the handle by hand.
Figure 5 shows how an embodiment of the leaf spring/clip 14 is designed such that it deforms more easily when the wider area of the movable component 6 passes the bends 18, 18a. In this embodiment the leaf spring is adapted such that its legs 26a, 26 can be pressed beyond the cross section/sides of the closing/opening mechanism. This means that when the closing/opening mechanism is mounted in a groove, as shown in the figures, part of the legs will hit the inner sides of the groove. By providing the legs of the leaf spring with two beards 15a, 15 which can be pressed out towards the inner side of a groove thread a deformation will occur in the legs of the leaf spring and not only in the bends 18, 18 a - when the wider part of the tip 25, 25a passes the bends 18, 18a. This deformation of the leg of the leaf spring will reduce the force required to make the wider part of the head pass the bends 18, 18a.
In the embodiment shown in figure 5, the two beards 15, 15a even extend into the sides of the groove itself and the holding force of the clip/leaf spring is thus primarily due to the resilient moment occurring in the corners/bends 17, 17a of the clip/leaf spring but even in the embodiments where the beards 15, 15a cannot be pushed out (into) the sides of the groove, beards at the ends of the legs of the leaf spring serve for an easier deformation of the clip/leaf spring when the wider area 25, 25a of the movable component 6 has to pass the bends 18, 18a. This also makes it easier for the user of a window with the closing/opening mechanism mounted to turn the handle. At the same time this is achieved without compromising the ability of the closing/opening mechanism to retain the window in a closed position during transport.
Figures 6, 7, 8 and 9 show more detailed how the movable component 6 in various embodiments can be connected to the pin 4 and how these components can be connected to a connector 50 which in turn is connected eccentrically to the converter 11 in such a way that a linear movement of the connector 50 in the direction of the arrow P will cause the converter to rotate 11.
In figure 6 the movable components are shown solidly/opaquely - whereas the components which must be arranged motionless in a frame of a window are shown as transparent.
Known locking mechanisms activated by means of a rod 10 (as shown in figure 1) which is rotated are most often activated by a relatively small (less than 40 degrees) angular rotation of the rod 10. To perform this angular rotation known locking mechanisms are provided with a so-called converter 11 which converts a linear movement into a rotation. In the embodiments shown in the figure, the converter 11 is provided with an eccentric coupling mechanism 11a. However, the extent of the linear movements made by the movable component are too large for this eccentric connection 11a to function without modifications to the system.
Therefore, locking systems comprise a connector 50 which modifies the system in such a way as to restrict the extent of these movements.
The connector 50 is thus connected to the movable component via an opening 51 made in the connector 50. The connector 50 will thus only be moved by the movable component 6 when the pin 4 of the movable component hits one of the end faces 51 of the opening 50. The distance moved freely by the movable pin, i.e. without moving the connector will subsequently also be referred to as the effective length. According to one embodiment of the invention this distance can be adjusted as explained in the following.
As part of the movement thus takes place without an end face 51 hitting the pin 4 the extent of the linear movement of the connector 50 is reduced with respect to the linear movement of the movable component 6 and thus the rotation of the converter 11 is also restricted.
Only one 51e of the end faces of the opening 50 is seen in the figures. Experience has shown that the brake mechanisms associated with the converter 11 wear out over time and therefore become too weak. Furthermore, it may also occur that manufacturing inaccuracies cause braking mechanisms to work too strongly. Both of these situations require that an adjustment takes place such that an appropriate braking force is applied to the window when the handle is turned to a position where braking force is expected.
For this, the movable component 6 and the handle part in the prior art are made with complementary tooth-like coupling components. An embodiment of the tooth-like coupling component arranged on the movable component is seen in fig. 6 and 7. This tooth-like coupling component 52 fits into a corresponding and complementary coupling component which is connected to the handle mechanism and the adjustment is made by displacing the mutual tooth engagement of the tooth-like coupling components. Performing this adjustment requires that these components are disengaged and mostly often completely removed from the window after which the components are displaced mutually by one or more teeth and reassembled.
This is time-consuming and troublesome which is why users often experience a daily life where the braking mechanism of the window does not work satisfactorily and sometimes even that inadequately that windows are damaged by e.g. wind/wind gusts because they are not retained by their braking mechanisms but open or close with such great force/speed that they are damaged when e.g. they are hit by a wind gust.
When this adjustment is carried out in a window according to the invention fitted with a handle the position of the handle will furthermore also change when the leaf spring/clip 14 engages with the recesses 12 and 12a behind the tip 13 of the movable component (shown in figures 3-5). It may even occur that the tip 13 of the movable component does not engage with the leaf spring/clip at all when the handle is moved to its closing position. Thus, the construction with tip and clip will no longer help to retain the internal components of the window when the handle is in its locking position.
This is a disadvantage as the user thereby cannot be sure that the internal components of the window do not move - due to e.g. vibrations during transport - when the handle is moved to the position in which the window is expected to be retained.
As explained with reference to figures 2 and 3, rotation of the handle 5 is converted into a linear movement of the movable component 6.
In prior art the extent of the linear movement is not adjustable but directly (proportional) depending on how much the handle is turned. Therefore, the total angle at which the converter 11 can be rotated cannot be changed either as the rotation of the converter is determined by the length of the hole 51 (in the figure it is the direction of the arrow).
Figure 7 shows an embodiment of a solution on how to change the (effective) length of the hole 51 by means of a slider 53 which can be secured stepless in different positions, thereby adjusting the (effective) length of the hole 51. By adjusting the (effective) length of the hole the braking force will be adjustable so as to be optimal when the tip 13 is in engagement with the leaf spring/clip and thereby wear or inaccuracies of the components opening, closing and retaining a window can be compensated.
The functionality of the slider will be explained more clearly with reference to the figures 7-9.
In the embodiments shown, the slider 53 is via a screw secured to a connector 50 and the slider is provided with a longitudinal recess 55 which can only just be seen in figure 7, however somewhat better in figure 8.
The purpose of the recess 55 is to provide movement to the slider (slides) in the directions of the arrow P. In practice, in the embodiments shown this is achieved by loosening the screw 54 and subsequently pushing the slider 53 in one direction or the other direction as indicated by the arrow P and then securing the slider 53 again in its new position by means of the screw. The securing itself with a screw may naturally be made in many other ways well known to the person skilled in the art.
If the screw 54 is loosened, shown in figure 7, and the slider 53 is pushed towards the lower right corner of the figure and hereafter secured with the screw 54, the effective length of the hole 51 has in practice been reduced as the slider 53 in this position is pushed beyond the end edge 51e of the hole (not shown in figure 7, however shown in figure 8). When being in this position, the slider 53 thereby prevents the pin 4 from being able to move all the way to the end edge of the hole.
By the words "effective length" is meant the length by which the pin 4 will be able to move back and forth in the hole 51 in the direction of the arrow P and without affecting the connector 50.
The functionality of the slider is shown more detailed in figure 8.
Figure 8 thus shows a situation where the slider 53 is pushed this far towards the lower right corner of the figure that the slider 53 covers part of the opening 51. Hereby it is achieved that the pin 4 can no longer be moved all the way to the hole edge 51e of the hole 51 but instead hits the slider 53 which thereby via its attachment to the screw pushes the connector 50 which in turn pushes the eccentric connection 11a on the converter 11 og thereby rotates it. In the figure is shown an eccentric connection between converter 11 og connector 50. This connection does not have to be an eccentric connection as it may naturally also be designed as gear/rack connection or in any other way well known to the person skilled in the art.
In figure 8 the slider is arranged such that the effective length of the hole 51 corresponds to the normal length of a hole in known systems. In the embodiment shown the hole 51 is made in such a way that the pin can be moved to a position with reduced braking force compared to the known systems in which the pin cannot move quite as far - towards the left upper corner of the figure. By making the hole 51 longer in this way and by further providing the system with a slider as described, it is achieved that the braking force of a window can easily be reduced (or increased) without having to detach it and adjust a toothlike connection 60 between handle and closing/opening mechanism as it is done by simply loosening, displacing and securing the slider in a new position.
By providing a window with a slider 53 as explained it is consequently easy - just by loosening, displacing and securing the slider again - to adjust the braking force achieved when the handle 3 is turned between open position and closed position.
As mentioned earlier, it is thereby prevented that windows are damaged because they break - when due to a poorly adjusted braking force they are not sufficiently braked in order to withstand e.g. drafts or wind.
In figure 9 and its three subfigures 9a, 9b, and 9c is schematically shown how the converter 11 is rotated more or less when the braking force is adjusted by displacing the slider 53 and is:

normal braking force when the slider is secured in the position (when the screw is secured in the middle of the slider 53) as shown in figure 9a;
relative to normal braking force, a reduced braking force when the slider is secured in the position (the slider is pushed to the left in the figure) as shown in figure 9b;
relative to normal braking force, an increased braking force when the slider is secured in the position (the slider is pushed to the right in the figure) as shown in figure 9a,

Although the system with slider is described in the context of a system comprising a connector with tip 13 and a leaf spring, known systems without these components can advantageously be provided with a slider as in these systems it is also possible to achieve a possibility of adjusting the breaking force without having to perform a major detachment.
The slider system can therefore be subject of an independent patent application for a closing/opening mechanism with or without a locking mechanism which comprises a tip and a leaf spring/clip. The application describes how the gearing (udveksling) between the connector and the movable component is adjusted by means of a slider which can be displaced in an opening. It is naturally possible to change the effective length of the hole (the length that the pin 4 can move in the hole) by something else than a slider. This could be done by e.g. filling something into the hole so as to partially fill it in such a way that the pin 4 would hit the filling (which could be prefabricated and adapted insert components) and thus be prevented from hitting an end face.
One (or both) end(s) of the hole could also be covered in order that the pin cannot hit the end faces of the hole but instead hits the cover before reaching an end face.
For the person skilled in the art, an adjustable gear ratio is a completely ordinary solution and therefore the movable/adjustable gear ratio can be made in many other ways well-known to the person skilled in the art. It could e.g. be achieved by using: a variable string and pulley solution; or by using an additional displaceable eccentric connection between the connector and the movable component; or a belt and cone connection; or a double cone connection. Although these mentioned possibilities are all very well known to the person skilled in the art and thus feasible, they are more complicated than the solution with a displaceable slider arranged in an opening as described and indicated in this application.

Claims

A closing/opening mechanism for a window with frame hinged pivotably in a case so as to enable the window to open or close as it is pivoted in or out of the case which closing/opening mechanism has a length and a cross section making it suitable for embedding between the sides of a groove in the window frame which closing/opening mechanism comprises:
• a pivotable connection which can be pivoted in a first direction to a first position wherein it activates the closing/opening mechanism such that the closing/opening mechanism will retain the window in a closed position in the case which pivotable connection can also be pivoted in a direction opposite to the first direction to a second position wherein it has deactivated the closing/opening mechanism such that the window can be pivoted in and out of the case;

• a fixed component for stationary fitting in the groove;

• a movable component connected to the pivotable connection such that the pivotable connection when moving between the first and second position moves the movable component linearly between two positions,
characterized in
that the closing/opening mechanism comprises a resilient component being secured to the movable component such that the movable component causes the resilient component to be between a loaded and an unloaded state when the movable component is moved linearly between the two positions which resilient component is in an unloaded state when the closing/opening mechanism is activated, whereby the closing mechanism is resiliently retained in the activated state by the resilient component.
A closing/opening mechanism for a window according to claim 1, characterized in that the resilient component is in an unloaded state when the movable component is in one of its two positions but is in a loaded state when the movable component is located between the two positions.
A closing/opening mechanism for a window according to claims 1-2, characterized in that the resilient component and the movable component are mutually adapted such that the resilient component is loaded by part of it being pressed beyond the cross section of the closing/opening mechanism by the movable component when the movable component is in a position between its outer positions.
A closing/opening mechanism for a window according to any of the claims 1-3, characterized in that the resilient component is fixedly connected to the fixed component and adapted to the movable component of the closing/opening mechanism such that part of the resilient component is displaced beyond part of the cross section of the movable component and furthermore beyond the cross section of the fixed component when the movable component is moved between its two outer positions.
A closing/opening mechanism for a window according to any of the claims 1-3, characterized in that the resilient component is made with two sides which are retained with respect to the fixed component and mutually adapted to part of the movable component such that components on the two sides are displaced resiliently by the movable component when the movable component is moved between its two outer positions.
A window with a window frame which can be hinged pivotably in a case so as to enable the window to open or close as it is pivoted in or out of the case which window comprises: an closing/opening mechanism embedded in a groove in the window frame which closing/opening mechanism comprises: a pivotable connection which can be pivoted in a first direction to a first stop position in which it activates the closing/opening mechanism such that the closing/opening mechanism will retain the window in a closed position in the case which pivotable connection can also be pivoted in a direction opposite to the first direction to a second stop position wherein it has deactivated the closing/opening mechanism such that the window can be pivoted in and out of the case; a fixed component for stationary fitting in the groove; a movable component connected to the pivotable connection such that the pivotable connection when moving between the first and second stop position moves the movable component linearly between two outer positions,
characterized in that the closing/opening mechanism comprises a resilient component connected to the movable component such that the movable component causes the resilient component to be between a loaded and an unloaded state when the movable component is moved between the two outer positions which resilient component is in an unloaded state when the closing/opening mechanism is activated, whereby the closing mechanism is resiliently retained in the activated state by the resilient component.
An adjustable closing/opening mechanism for a window with frame hinged pivotably in a case so as to enable the window to open or close as it is pivoted in or out of the case which closing/opening mechanism has a length and a cross section making it suitable for embedding between the sides of a groove in the window frame which closing/opening mechanism comprises:
• a pivotable connection which can be pivoted in a first direction to a first position in which it activates the closing/opening mechanism such that the closing/opening mechanism will retain the window in a closed position in the case which pivotable connection can also be pivoted in a direction opposite to the first direction to a second position wherein it has deactivated the closing/opening mechanism such that the window can be pivoted in and out of the case;

• a fixed component for stationary fitting in the groove;

• a movable component connected to the pivotable connection such that the pivotable connection when moving between the first and second position moves the movable component linearly between a first and a second position;

• a connector connected to the movable component such that a linear movement of the movable component is transferred to the connector via a;

• gear mechanism gearing the extent of the linear movement such that the extent of the linear movement of the connector is changed in its extent compared to the extent of the linear movement of the movable component;

• a converter connected to the connector in such a way that the linear movement of the connector is converted to a rotation of the converter;
characterized in
an adjustable gear mechanism capable of adjusting the gearing of the linear movement transferred between the connector and the movable component when the movable component is moved between its first and its second position.
An adjustable closing/opening mechanism according to claim 7, characterized in that the gear mechanism is adapted such that the extent of the movement of the linear component is transferred in a reduced extent when transferred to the connector.
An adjustable closing/opening mechanism according to claims 7 or 8, characterized in that it comprises a closing/opening mechanism for a window according to any of the claims 1-5 and/or a window according to claim 6.