IT201600092089A1 - DOOR FITTING WITH A REFINED TURNTABLE - Google Patents

Description

PERFECTED SWIVEL DOOR WINDOW

TECHNICAL FIELD

The present invention relates to the window and door sector.

STATE OF THE ART

At the state of the art, windows with revolving door are known.

In general these windows include

- a frame with frame or fixed frame, intended to be fixed to the wall, - a mobile counter-frame (part of the leaf), rotatably coupled to the frame frame and intended to support the transparent sheets of the window or door (glass, double glass, synthetic sheets and the like) and to abut against the frame, - a sealing gasket, acting between the frame and the counter-frame when the window is closed, designed to seal the window,

- at least one transparent or translucent sheet (glass, double glass, synthetic sheets and the like) applied to the counter-frame.

Leaving aside the solutions in which the sash rotates-translates with respect to the fixed frame, which are onerous and overall relatively delicate, reference will be made hereinafter to the solutions in which the sash rotates only with respect to the frame, being provided between the two suitable rotation.

In these solutions, the pins are usually arranged along a vertical axis, often placed at the edge of the door and the frame, around which the door rotates between the opening and closing positions of the window.

Doors with opening to the right or to the left are thus distinguished, depending on whether the rotation axis is located, precisely, at the right or left edge of the window.

These windows are then usually provided with a handle acting on a locking mechanism, such as a bolt or the like, capable of selectively locking the door in the closed condition.

Although widely used for a long time, however, these windows have some limitations.

A first limitation derives from the fact that, depending on the installation requirements, it is necessary to alternatively have available a window with opening to the right or to the left; this entails an increase in warehouse costs.

Another limit is linked to the fact that the opening to the right or left of the window cannot be changed once the window has been installed; it follows that - if the needs vary over time, for example following a change in the environment or walls - the entire window frame will have to be replaced to provide a different one, suitable for the changed needs.

Furthermore, if for some reason it becomes necessary to temporarily change the right-hand or left-hand opening direction, this is not feasible.

Another limitation is linked to the fact that windows with rotation along a vertical axis can also be rotated along a horizontal axis only by setting up rather complex mechanisms: the only known solution in this sense provides that the counter-frame has the possibility of rotating. with respect to the frame according to two perpendicular axes of rotation, typically a vertical axis along which the counter-frame rotates until the door is fully opened and a horizontal axis, along which the counter-frame rotates only for a small angle (e.g. 15 °) and then freeze, so-called “vasistas” opening.

This solution, when the door is brought to the "bottom hung" opening position, allows the passage of air to ventilate the internal environment and prevents the intrusion of malicious people due to the small size of the slot that remains open; however, this solution is not free from limits, consisting - among other things - of having to provide two different rotation pins which can be selectively engaged in an alternative way and in the mechanism of selective engagement of the same.

The mechanical realization of the mechanisms responsible for this operation is relatively complex and the mechanisms are on average formed by a high number of cooperating parts, with an increased risk of breakage or failures.

Furthermore, in these known frames there is always an abutment profile between the frame and the counter-frame, which is necessary to stop the rotating stroke of the mobile counter-frame and to contribute to an efficient mechanical seal between the two.

However, this means that the angular stroke that can be performed by the counter-frame is generally limited, typically at most about 90 ° - 150 °, with the consequence that the transparent sheets of the door facing outwards can only be carried to a limited extent. to be turned (when the door is open) inwards.

This involves a certain limitation in the cleaning phases of the sheets themselves and a certain degree of danger of the operation, especially when - to clean the surface of the door facing outwards - the operator has to lean out.

Another limitation of these solutions, in which the frame and the counter-frame are articulated by means of a simple rotation pin, relates to the possibility of keeping the door partially open to allow an air passage and at the same time prevent the counterframe can be opened from the outside for safety reasons.

To partially solve this drawback, windows have been created in which the counter-frame, in addition to rotating with respect to the frame, translates, following a compound trajectory of movement, that is roto-translational.

Although generally more versatile, these solutions also have some limitations.

First of all, the joints between the frame and the counter-frame, having to be suitable for carrying out the roto-translational trajectory, are rather complex (in any case more complex than a simple pair of pins), therefore relatively expensive and delicate.

Also consider another aspect: thermal insulation and the race to ever lower thermal transmittance values are particularly felt needs for windows, the ultimate purpose of which is to reduce energy consumption for heating and air conditioning of buildings.

Incidentally, the "thermal transmittance" is indicated, in thermotechnics, with "U" and is measured in W / (m <2> * K); is a physical quantity that measures the quantity of thermal power exchanged by a material or body per unit of surface area and unit of temperature difference, and defines the ability of an element to exchange energy, or the inverse of its insulating capacity.

This, of course, has greater impact for buildings where the transparent surface has greater extension.

There are, in the state of the art, solutions in which a so-called glass or plate is used on a window or door. low-E.

The term "low-E glass" in the known art identifies a glass plate which has been coupled with a film having at least one layer capable of altering the transmission of the incident radiation (preferably comprising at least one metal and / or a metal oxide) without modifying it substantially the light transmission performance. Compared to a standard glass having a thermal transmittance of 3 (± 0.5) W / M2K, preferably a low-E glass has a transmittance of 1.5 (± 0.5) W / M2K. These known solutions, however, are subject to a limit deriving from the above, that is the need to find a balance between the extreme conditions of heat or cold, favoring one solution rather than another, on the basis of the geographical location. the installation and the thermal needs to be fulfilled in the context of the building.

It goes without saying that, as a compromise, these solutions are never optimal in all conditions.

This innovation aims to develop a simple, effective and sustainable solution for energy efficiency needs in windows, and more generally in transparent walls, and in particular it addresses the different transmission and insulation needs that occur between summer management and of the thermal flows.

PURPOSE AND SUMMARY OF THE INVENTION

It is the aim of the present invention to overcome the drawbacks of the known art. In particular, the purpose of the present invention is to provide a window in which the door can rotate in a way that can be adapted to the installation and use needs of a user.

Another purpose of the invention is to provide a window frame in which the sash can be rotated by an angle greater than 180 °, so as to simplify cleaning operations of the transparent surfaces, thanks to the possibility of cleaning both the internal and external surfaces of the part. transparent from inside the building.

Another purpose is to allow aeration of a room obtained through the use of the window, without the same having to be left open, or having potentially dangerous air passage slits because they represent potential points of access and intrusion.

Another object is to improve the mechanical resistance of the window or door.

Another object is to make the window frame more difficult to attack. Another purpose is to increase the energy efficiency of the window frame, by increasing the thermal insulation and reducing the thermal dispersion in winter and / or by increasing the amount of radiation reflected towards the outside during the summer, so as to have a frame usable in an optimal way, regardless of the climatic / geographical conditions.

A first idea underlying the invention is that of providing a window frame comprising

- a fixed frame frame, intended to be fixed to a wall, comprising a first face intended to be mounted facing an internal environment and a second face intended to be mounted facing an external environment,

- a movable subframe rotatably coupled to the fixed frame, - at least a first transparent or translucent plate fixed to the movable subframe,

- a sealing gasket, acting between the fixed frame and the mobile counter-frame in a closed condition of the window, in which

the window frame is also provided with a plurality of pairs of rotation pins, the two pins of the same pair being aligned along a rotation axis different from the rotation axes of the remaining pairs, each pair of pins being selectively operated independently of the remaining pairs of pins to be moved between a condition of engagement in rotation of the frame and counter-frame and a condition of disengagement of the frame and counter-frame, so as to allow the mobile counter-frame to be rotatably mounted on the fixed frame about a plurality of axes alternately selectable rotation.

According to an advantageous characteristic, even independent of the other characteristics, at least two pairs of pins are arranged along respective vertical parallel axes in the condition of the window frame in place.

According to an advantageous characteristic, even independent of the other characteristics, said two parallel vertical axes are each close to a lateral edge of the window frame, a third pair of pins being also provided along a third vertical axis parallel to the other two and interposed between them.

According to an advantageous characteristic, even independent of the other characteristics, a pair of pins positioned along a horizontal axis.

According to an advantageous feature, even independent of the other features, the pins are driven by a drive motor.

According to an advantageous characteristic, even independent of the other characteristics, the pins are operated by means of a manual lever mechanism.

According to an advantageous characteristic, even independent of the other characteristics, there are no rigid abutment elements of the mobile counter-frame with respect to the frame frame and vice versa, the seal is an expandable seal that can be configured at least in:

- an expanded configuration in which the gasket makes a seal between the fixed frame and the counter frame

- a collapsed configuration, in which the gasket is not in contact with one between the fixed frame and the counter frame

so that the sealing gasket can be configured in said expanded configuration when the counter-frame (3) is in the first or second stable closed condition.

This allows the counter-frame to be overturned at 180 ° without the stop elements (usually present in known windows) hindering the achievement of each of the two closing positions of the counter-frame, furthermore it is thus possible to avoid damaging ( by friction, in carrying out the rotation) the sealing gasket and at the same time having an optimal seal of the window frame (i.e. an excellent insulation from the external environment): in fact the sealing gasket can be configured in the expanded configuration when the counter-frame is in the first or second stable closing condition, while it is preferably brought into the collapsed condition during the movement (overturning) of the counter-frame, so as not to hinder its movement or be damaged by friction.

As additional advantages, thanks to the design of the structure and the integrated actuation, new opportunities are also enabled both for cleaning the window and for greater resistance to possible break-in attempts.

The Applicant noted that to date this opportunity has not been exploited. On the contrary, thanks to the invention it is possible to exploit this approach, thanks to the fact that a window frame is created in which the counter-frame is rotating and can be closed once a 180 ° rotation has been made.

The existing gasket solutions within the known art are based on a fixed gasket, which would not allow for a closure that complies with wind and water sealing standards for a rotating and resealable solution.

In other known solutions the solutions have an evident complication of the technology enabling a rotation, linked to a roto-translation which is difficult to perform mechanically (as for example described in the US patent US5924244A).

According to an advantageous characteristic, even independent of the other characteristics, the window frame comprises a second transparent or translucent plate, parallel to the first, in which the first plate is made of a transparent or translucent material of the low-E type, the mobile counterframe is freely rotatable with respect to to the frame frame around at least one rotation axis (X, Y) with a rotation of at least 180 °, since it can be tilted between two stable closing conditions of the window: - a first stable closing condition in which the first sheet is facing towards the first internal face of the fixed frame

- a second stable closing condition in which the first plate faces the second external face of the fixed frame.

It is thus possible to arrange the low-E sheet facing alternately towards the internal environment or towards the external environment, ensuring a stable closing condition of the window in both configurations. By "stable closure" we mean that the counter-frame, in such conditions, can be locked in position with respect to the frame and closes the air passage defined by the latter.

In other words, in the "closed" window condition, the low-E sheet can be placed outwards or inwards: this allows to optimize the performance of the window, in fact:

- with the low-E sheet towards the inside, there is an increase in thermal insulation and a reduction in heat loss, obtaining considerable energy savings in cold climate conditions (reducing the heat input necessary to heat the environment),

- with the low-E sheet towards the outside, the amount of radiation reflected towards the outside increases, obtaining considerable energy savings in hot climate conditions (reducing the heat input necessary to cool the environment).

In fact, the sheets exposed to the internal environment and to the internal one have different characteristics of transmission and reflection of the radiation, and as a consequence of this asymmetry, in conjunction with the two different positions of stable closure, the window is able to enable a different thermal performance.

The window frame of the invention is thus adaptable, and in addition to isolating (for example by means of low transmittance values obtained by means of at least one chamber enclosed between two transparent surfaces), it also advantageously allows a selective reflection of the incident radiation in cold climatic conditions with respect to conditions heat, enabling in this case an energy saving condition.

It is thus possible to differentiate the operation of the window or door in two opposite conditions (cold or hot), and at the same time it is possible to provide a window that is adaptable in many conditions characterized by a temperate climate.

According to an advantageous characteristic, even independent of the other characteristics, the movable counter-frame can only rotate with respect to the fixed frame.

In this way, the aims set out above are achieved.

Consequently, a first object of the invention is a window frame according to the first attached claim.

Further advantageous characteristics are the subject of the attached claims, which are intended as an integral part of the present description.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be described below with reference to non-limiting examples, provided for explanatory and non-limiting purposes in the attached drawings. These drawings illustrate different aspects and embodiments of the invention and, where appropriate, reference numbers illustrating similar structures, components, materials and / or elements in different figures are indicated by similar reference numbers.

In the attached figures:

Figures 1 and 2 show front views of a window frame according to the invention in two positions of stable closure;

Figure 3 illustrates the window frame of the previous figures in perspective in an intermediate position, of passage, between the positions of stable closure; Figure 4 illustrates a front view of the window frame of the previous figures, with highlighted planes of sections A-A, B-B, C-C of the following figures; Figures 5 and 6 respectively show a section along the plane A-A of Figure 4 and an enlargement thereof;

Figures 7 and 8 respectively show a section along the plane B-B of Figure 4 and an enlargement thereof;

Figure 9 illustrates a section along the plane C-C of Figure 4;

Figures 10 and 11 schematically illustrate a gasket of the window frame in an expanded and non-expanded condition;

Figures 12 and 13 illustrate a reduced section of the plates of the window frame of the invention in two different operating conditions;

Figure 14 illustrates a detail of the window frame of the present invention. DETAILED DESCRIPTION OF THE INVENTION

While the invention is susceptible to various modifications and alternative constructions, some preferred embodiments are shown in the drawings and will be described below in detail.

It is to be understood, however, that there is no intention of limiting the invention to the specific embodiment illustrated, but, on the contrary, it is intended to cover all modifications, alternative constructions, and equivalents that fall within the scope of the invention such as defined in the claims.

The use of "for example", "etc", "or" indicates non-exclusive alternatives without limitation unless otherwise indicated.

The use of "include" means "includes, but not limited to" unless otherwise indicated.

Indications such as "vertical" and "horizontal", "upper" and "lower" (in the absence of other indications) must be read with reference to the assembly (or operating) conditions and referring to the normal terminology used in current language, where "vertical "indicates a direction substantially parallel to that of the gravity force vector" g "and a horizontal direction perpendicular to it.

The invention, in the preferred embodiment, allows among other things a substantial modification of the thermal performance of a window or door in buildings, carried out by means of a revolution of at least 180 ° or more (up to 360 ° or multiples), with respect to the median axis. vertical (or horizontal) of the counter frame that supports the transparent or translucent sheets of the window.

In the example of embodiment described and illustrated here, reference will be made to an embodiment in which the two transparent sheets are different, in particular one sheet is in "float" glass and the other in low-E glass; nevertheless, the invention can also be applied equivalently to solutions in which there is only one transparent plate, or three or more and of any type.

In the example, among other things, the rotation allows in a simple and repeatable way to reverse the order of the different layers of the transparent part, which leads to an optimization of the thermal performance and therefore optimizes the energy performance according to the user's needs. .

Basically, there is an inversion of the sequence with which the transparent or translucent plates appear with respect to external radiation, or they influence the heat flow from the inside.

Looking at figures 1-4, they show an overall example of a window frame according to an embodiment of the invention, indicated as a whole with the numerical reference 1.

The fixed frame frame 2 of the window frame 1 comprises two main faces, a first face I intended to be mounted facing an internal environment, and a second face E intended to be mounted facing an external environment.

The window 1 then comprises a movable counter-frame 3 coupled (preferably) exclusively rotatably to the fixed frame 2.

For this purpose, at least one pair of rotation pins 90 is provided between the fixed frame 2 and the counterframe 3.

The window 1 then comprises a first 4 and a second 5 transparent or translucent plate fixed to the mobile counter-frame 3.

In general, the slabs could also be in a higher number, depending on the needs and insulation performance of the window itself. The transparent or translucent plates are arranged parallel to each other and, together with the counter-frame, identify a chamber for every two consecutive plates; in the example shown there is therefore only one chamber, if there were three slabs there would be two chambers, and so on.

There are several options in the known art, for the chamber process (for example: vacuum, technical gas - Argon ...); element of great importance for the present invention is that the procedures of the known art can be integrated, without compromising or influencing the correct functioning of the present invention.

A sealing gasket 8 is provided between the frame frame 2 and the mobile counter-frame 3, designed to make a seal between the two in each of the two stable closing positions of the window or door.

According to the invention, the first sheet 4 is made of a transparent or translucent low-E material, while the second sheet 5 is made of a common transparent or translucent material (e.g. float glass) which has no dedicated surface treatments or coatings. to the modification of the transmission of the incident radiation

As can be seen in figures 1-3, the movable counter-frame 3 is freely rotatable with respect to the frame-frame 2 around at least one axis of rotation (Y in this example, but it could also be the X axis perpendicular to it) with a rotation of at least 180 °.

In this way the counter-frame 3 can be overturned between two stable closing conditions of the window frame 1:

- a first stable closing condition in which the first plate 4 faces the first face I of the window frame 1 (see fig. 1)

- a second stable closing condition in which the first plate 4 faces the second face E of the window frame 1 (see fig. 2).

The counter-frame 3 in passing through the two conditions of stable closure passes through all the intermediate positions, or rotates freely (see Fig. 3), for example around the Y axis as in the example. Preferably, there are no other types of articulation between the frame and the subframe, other than the rotation pins 90 which are arranged at least along the axis of rotation, or the Y axis in this example.

The rotation pins 90 engage in rotation the fixed frame and the mobile counter frame; in a preferred embodiment they can be selectively activated and deactivated following a user command.

In one embodiment, the rotation pins 90 are two (a pair), opposite each other on opposite sides of the window frame and aligned with each other and are fixed in position, i.e. they are always in a condition of engagement between frame 2 and counter frame 3.

In this case the window frame includes a closing device, for example usual handles with rotating locking / unlocking arms, known to the state of the art.

In another embodiment, particularly advantageous, the rotation pins 90 are instead a plurality of pairs of pins 90, as visible in fig. 14 and are of the retractable type.

They slide axially in a guide (not shown) provided for the purpose in the frame 2 (or equivalently in the counter-frame 3) and can pass an extracted condition in which they engage frame 2 and counter-frame 3 to a retracted condition in which they free the counter-frame 3 (or equivalent frame 2).

Each retractable pair of pins 90 (meaning two facing and aligned pins extending axially in the same direction) can be operated separately from the remaining pairs, so that a user can select which pair or pairs to bring in the extracted condition.

It goes without saying that by bringing a single pair of retractable pins 90 in the extracted condition, they will act as a fulcrum and allow the subframe 3 to rotate with respect to the frame 2 around the axis defined by the extracted pins.

It will thus be possible, bringing in the extracted condition only one pair of pins at a time, to have different axes of rotation around which the counter-frame 3 rotates with respect to the frame 2 and to have an extremely versatile door or window frame 1.

It is also possible, once the counterframe 3 has been brought into the chosen configuration, to use the remaining retractable pins 90 as closing or locking devices: it is in fact sufficient to extract even just two pairs of pins 90 to prevent rotation of the counterframe. frame 3.

The retractable pins 90 are actuated by means of an adequate system (manual, mechanical, hydraulic, pneumatic or electro-mechanical) to allow closure by inhibiting the possibility of the counter-frame to rotate. It should be noted that rigid abutment elements of the mobile counter-frame 3 with respect to the frame-frame 2 and vice versa are absent, so that the rotation of the first with respect to the second can be complete or reach and exceed (if necessary) 180 °.

In a more general sense, it should be noted that the window 1 comprising - a fixed frame frame 2, intended to be fixed to a wall, comprising a first face I intended to be mounted facing an internal environment and a second face E intended to be mounted facing an external environment,

- a movable counterframe 3 rotatably coupled to the fixed frame 2, - at least a first 4 transparent or translucent plate fixed to the movable counterframe 3,

- a sealing gasket 8, acting between the fixed frame 2 and the mobile counter-frame 3 in a closed condition of the window, and there are also a plurality of pairs of rotation pins 90, the two pins of the same pair being aligned along an axis of rotation different from the rotation axes of the remaining pairs, each pair of pins 90 being selectively operable independently of the remaining pairs of pins to be moved between a condition of rotational engagement of frame 2 and counter-frame and a condition disengagement of frame 2 and counter-frame 3, so as to allow the mobile counter-frame 3 to be rotatably mounted on the fixed frame 2 around a plurality of alternatively selectable rotation axes.

As just described, therefore, at least two pairs of pins 90 are optionally arranged along respective parallel vertical axes in the condition of the door or window in place.

Optionally, said two parallel vertical axes are each close to a lateral edge of the window frame, a third pair of pins being provided along a third vertical axis parallel to the other two and interposed between them.

Optionally, the window frame comprising one or more pairs of pins positioned along a horizontal axis to define rotation axes perpendicular to the vertical one (s) of the pins described above.

The pins 90 are operated by an actuation motor or manually, for example by means of a manual lever mechanism which can be actuated by a user.

Turning now to describe the seal 8, it, in the exemplary embodiment illustrated, is an expandable seal. In particular, the gasket can be configured at least in

- an expanded configuration in which the gasket 8 makes a seal between the frame 2 and the counter-frame 3

- a collapsed configuration, in which the gasket 8 is not in contact with one between the frame 2 and the counter-frame 3.

Said gasket 8, whose seat can be (preferably) housed inside the fixed frame, and abut in the movable counter-frame, or be housed in the movable counter-frame and abut in the fixed frame, is feasible (expandable or collapsible) depending on whether a positive (pressurization) or negative (depressurization) pressure field of a fluid acts inside it.

In a construction solution, the fluid is a liquid (in particular, but not limited to, mineral oil, water and glycol solutions or silicone oil can be used) which is transferred from a small tank to the gasket (pressurization) and vice versa from the gasket to the tank (depressurization) by means of a pump, preferably housed inside the fixed part of the window frame.

The system of pump, tank and connecting pipes from the tank to the pump and from the pump to the seal, is constructively implemented in such a way as to ensure the mechanical strength of the assembly and the hydraulic seal. These components, in particular tank for fluid, pump and delivery / return pipes, are to be understood as an optional integral part of the window frame of the invention.

In an alternative construction solution, the fluid can be a gas, in particular atmospheric air.

In this solution, a tank is not strictly necessary, and the compressor, preferably housed inside the fixed frame, compresses the fluid directly from the environment towards the inside of the gasket (pressurization).

The depressurization can take place directly by putting the environment of the gasket 8 in communication with the atmospheric pressure.

In particular, in use, the gasket 8 is brought into the expanded configuration when the counterframe 3 is in the first or second stable closing condition, so as to seal the window against the atmospheric agents of the external environment and isolate the internal environment from the external one.

For this purpose the gasket 8 comprises an internal sealed chamber 80 which can be filled with (or emptied from) the selected fluid; the chamber 80 is in fluid communication with a supply conduit or with a delivery conduit and a return conduit afferent to the pump and / or reservoir for the fluid.

The strengths of the innovative solution are the following:

Possibility of using an orientation of the glass surface in response to the specific thermal needs of the internal environment; Ease of implementation and specific design of the frame that allows resistance to atmospheric agents and the same transparency properties in both orientations of the glazed surface;

Robustness of the solution, its intrinsic safety against possible break-ins, and at the same time accessibility to cleaning and maintenance operations.

The innovation therefore lies mainly in:

a system of gaskets, enabling the release and sealing of the mobile part from the fixed part of the frame, at the same time responsible for the seal and mechanical strength of the whole;

the shape of the frame profile, which allows the complete rotation and closing of the rotating counter-frame in both positions;

the sequence of at least two glazed surfaces, having dissimilar thermal radiation reflection performance, enabling the functionality of modifying the energy performance of the entire system;

the possibility of selective actuation of a number of pins, dedicated for the rotation of the counter-frame and its locking in one of the two stable closing positions;

the combination of different operating conditions of the gasket and the pins, aimed at enabling different functions in the window frame, such as for example the passage of air in the section between frame and counter-frame, without the need to open the window

The gaskets ensure continuity with the fixed and mobile part of the frame. These are made of material capable of resisting pressure, and deforming in an elastic way when subjected to a positive or negative pressure of a fluid (pneumatic or hydraulic).

The actuation is allowed through an electro-hydraulic system, which allows to have a lock or a release of the subframe. There is the option of depressurizing the gasket to allow air to pass through the space between frame and subframe, without complete release.

The purposes listed above are thus achieved.

Numerous variations are obviously possible to what has been described up to now.

Claims (10)

CLAIMS 1. Door frame (1) comprising - a fixed frame frame (2), intended to be fixed to a wall, comprising a first face (I) intended to be mounted facing an internal environment and a second face (E) intended to be mounted facing an external environment , - a mobile counter-frame (3) rotatably coupled to the fixed frame (2), - at least one first (4) transparent or translucent plate fixed to the mobile subframe (3), - a sealing gasket (8), acting between the fixed frame (2) and the mobile counter-frame (3) in a closed condition of the window frame, characterized in that the window frame is also provided with a plurality of pairs of rotation pins (90), the two pins of the same pair being aligned along a rotation axis different from the rotation axes of the remaining pairs, each pair of pins (90) being selectively operable in independently of the remaining pairs of pins to be moved between a condition of rotational engagement of the frame (2) and counter-frame (3) and a condition of disengagement of the frame (2) and counter-frame (3), so as to allow to the movable counter-frame (3) to be rotatably mounted on the fixed frame (2) around a plurality of alternatively selectable rotation axes. The door or window (1) according to the preceding claim, in which at least two pairs of pins (90) are arranged along respective parallel vertical axes in the condition of the door or window in place. The window frame (1) according to the preceding claim, in which said two parallel vertical axes are each close to a lateral edge of the window frame, a third pair of pins being also provided along a third vertical axis parallel to the other two and interposed between they. The door or window according to claim 1, 2 or 3, comprising a pair of pins placed along a horizontal axis. The window frame (1) according to one or more of the preceding claims, in which said pins are driven by an actuation motor. The window frame (1) according to one or more of claims 1 to 4, in which the pins are operated by means of a manual lever mechanism. The window frame (1) according to one or more of the preceding claims, in which there are no rigid abutment elements of the movable counter-frame (3) with respect to the frame frame (2) and vice versa, the sealing gasket (8) is an expandable sealing gasket configurable at least in: - an expanded configuration in which the gasket (8) makes a seal between the fixed frame (2) and the counter-frame (3) - a collapsed configuration, in which the gasket (8) is not in contact with one of the fixed frame (2) and the counter-frame (3) so that the sealing gasket (8) can be configured in said expanded configuration when the counter-frame (3) is in the first or second stable closed condition. The window frame (1) according to the preceding claim, wherein the gasket (8) comprises a sealed internal chamber (80) which can be filled or emptied with a fluid to bring the gasket (8) into said expanded or collapsed configuration. The window frame (1) according to one or more of the preceding claims, in which the first plate (4) is made of a transparent or translucent material of the low-E type, the mobile counter-frame (3) is freely rotatable with respect to the frame with frame (2) around at least one rotation axis (X, Y) with a rotation of at least 180 °, being foldable between two stable closing conditions of the window (1): - a first stable closing condition in which the first plate (4) faces the first internal face of the fixed frame (I) - a second stable closing condition in which the first plate (4) faces the second external face (E) of the fixed frame. The window frame (1) according to one or more of the preceding claims, in which the movable counter-frame (3) can only rotate with respect to the fixed frame.