DESCRIPTION

Field of the invention

The present invention generally relates to the technical field of systems for moving a door leaf, door or the like, and it particularly relates to a device for rotatably coupling - with respect to a rotation axis- a closing element, such as a door leaf, door or the like and to a stationary support structure. Furthermore, the invention relates to an assembly and a system for the rotatable movement comprising such device.

State of the Art

Systems for the rotatable movement of door leaves, doors or the like, which generally comprise a coupling assembly which includes a male element, a pivot, and a female element, a seat, mutually engaged to each other so as to allow a closing element, such as the door leaf, to rotate between an open position and a closed position, are known. Possibly, such systems comprise a hinge which includes the pivot so that the movement of the closing element is controlled and/or automatic.

In order to stabilise the rotation of the door, the systems generally comprise a pair of assemblies, a first arranged inferiorly and a second arranged superiorly so that the pivots are aligned along the rotation axis.

Depending on the configurations, the pivot may be coupled to the stationary support structure, the frame, or to the door. For example, the frame may comprise a recess for housing the hinge while the door may comprise a seat for housing the pivot. On the other hand, the door may comprise a recess for the hinge while the frame may comprise a seat for the pivot.

Therefore, in order to install such systems, there arises the need to simultaneously install both the seat and the pivot. For example, once the pivot has been installed into the seat superiorly, there arises the need to simultaneously install the seat and the pivot inferiorly so that the door is supported rotatably. Such known assemblies used on the system for the rotatable movement of closing elements, are susceptible to improvement, in particular as regards the functions thereof and in particular the practicability and speed of assembly.

Furthermore, the known systems require significant expertise given that a small change in the distance between the upper and lower assemblies, that is between the door and the frame, inevitably entails the malfunction of the entire system for moving the door.

Summary of the invention

An object of the present invention is to at least partly overcome the drawbacks outlined above, by providing a device for the rotatable coupling of a closing element and a stationary element that is highly functional and cost-effective.

Another object of the invention is to provide a device for the rotatable coupling of a closing element and a stationary element that is easy and quick to install.

Another object of the invention is to provide a device for the rotatable coupling of a closing element and a stationary element that allows to easily disassemble the former and the latter.

A further object of the invention is to provide an assembly for the rotatable coupling of a closing element and a stationary element that is highly functional and cost-effective.

Another object of the invention is to provide an assembly for the rotatable coupling of a closing element and a stationary element that allows to easily assemble/disassemble the closing element.

Another object of the invention is to provide an assembly for the rotatable coupling of a closing element and a stationary element that allows to change the distance between the position of the closing element and of the stationary element.

A further object of the present invention is to at least partially overcome the drawbacks outlined above, by providing a system for the rotary movement of a closing element that is highly functional and cost-effective.

Another object of the invention is to provide a system for the rotary movement of a closing element that allows to adjust the latter with respect to the support structure.

Another object of the invention is to provide a system for the rotary movement of a closing element that is easy and quick to install. Another object of the invention is to provide a system for the rotary movement of a closing element that allows to easily demount the latter from the frame.

These and other objects that will be more apparent hereinafter, are attained by a device for the rotatable coupling of a closing element and of a stationary support structure, by an assembly comprising such device and by a system for the rotary movement of a closing element as described and/or claimed and/or illustrated herein.

Advantageous embodiments of the invention are defined according to the dependent claims.

Brief description of the drawings

Further characteristics and advantages of the invention will be more apparent in light of the detailed description of a preferred but non-exclusive embodiment of the invention, illustrated by way of non-limiting example with reference to the attached drawings, wherein:

FIGS. 1 and 2 are a schematic view of a closing element A and of a stationary structure S respectively in closed and open position;

FIGS. 3 and 4 are a cross-sectional view of some details of a movement system 1 comprising an assembly 100 mounted inferiorly and an assembly 100 mounted superiorly, respectively in engaged (FIG. 3) and disengaged (FIG. 4) operative positions;

FIGS. 5 and 6 are a cross-sectional view of some details of a different embodiment of the system 1 comprising the assembly 100 mounted inferiorly and an assembly 200 mounted superiorly, respectively in engaged (FIG. 5) and disengaged (FIG. 6) operative positions;

FIGS. 7 and 8 are a cross-sectional view of some details of a different embodiment of the system 1 comprising the assembly 100 mounted inferiorly and a different embodiment of the assembly 200 mounted superiorly, respectively in engaged (FIG. 7) and disengaged (FIG. 8) operative positions;

FIG. 9 is an exploded view of a coupling device 110;

FIGS. 10 and 11 are respectively a lateral and cross-sectional view of the coupling device 110 in an operative position;

FIGS. 12 and 13 are respectively a lateral and cross-sectional view of the coupling device 110 in a different operative position;

FIG. 14A and 14B are lateral views of different embodiments of the coupling device 110 in the same operative configuration;

FIGS. 15 and 16 are respectively a top and exploded view of an attachment device

120;

FIG. 17 is an exploded view of an attachment device 220, with FIG. 18 showing a top view of the attachment device 220 in a particular operative position;

FIG. 19 is a cross-sectional view of some details of the attachment device 220 of FIG.

18;

FIGS. 20 and 21 are respectively a lateral and cross-sectional view of the attachment device 220 in an operative position;

FIGS. 22 and 23 are respectively a lateral and cross-sectional view of the attachment device 220 in a different operative position;

FIGS. 24 and 25 are respectively an axonometric and exploded view of a hinge 210;

FIGS. 26, 27 and 28 are schematic views of the closing element A in different operating steps, with FIGS. 29, 30 and 31 showing cross-sectional views of some details respectively FIGS. 26, 27 and 28 which show a different embodiment of a movement assembly.

Detailed description of some preferred embodiments

With reference to the aforementioned figures, herein described is at least one system 1 for the rotary movement of a closing element A, such as a door, a door leaf or the like, which can be anchored to a stationary support structure S, such as a wall, a floor, a frame or the like. Preferably, the movement of the closing element A with respect to the stationary support structure S may be carried out with respect to a main rotation axis X.

Essentially, the system 1 may comprise at least one assembly 100 for the rotatable coupling of the closing element A and of the stationary structure S, that is for example, for coupling the door A and the frame S.

As better explained hereinafter, the system 1 may comprise other coupling assemblies, besides the assembly 100 to mutually coupling the door A and the frame S.

The assembly 100 and/or the plurality of assemblies, may be coupled with the door A in one or more predetermined positions. Preferably, the system 1 may comprise a pair of assemblies which may be coupled to the door A and to the frame S so as to remain on opposite sides with respect to the door A. In particular, an assembly may be positioned at a position PI and an assembly at a position P2. Preferably, such positions PI and P2 may be on opposite sides with respect to the doorA.

The positions PI and P2 may correspond to the lower PI and upper P2 positions once the doorA has been coupled with the frame S of a vertical wall. For example, FIG. 1 shows a door A in which there are indicated the lower position with PI and the upper position with P2 and in which the positions PI and P2 are on opposite sides with respect to the doorA.

The system 1 may comprise a pair of assemblies identical to each other, for example the assembly 100 or another assembly 100 substantially identical to the first, or a pair of different assemblies, for example the assembly 100 and an assembly 200 which comprises a hinge 210, or the assembly 100 and the assembly 300, or the assembly 100 and any assembly of the per se known type not shown in the attached figures.

Preferably, the assemblies 100,200, and possibly other known assemblies not shown in the figures, may allow the rotatable coupling of the door A and of the frame S with respect to a respective rotation axis X',X".

Suitably, should the system 1 comprise a pair of coupling assemblies, the latter may be coupled with the door A and the frame S so that the respective rotation axes X',X" are substantially coincident. Preferably, such axes X',X" may define the rotation axis X of the doorA.

The system 1, for example as shown in FIGS. 3 and 4, may comprise a pair of assemblies 100, the assembly 100 positioned inferiorly PI and another assembly 100 positioned superiorly P2.

On the other hand, for example as shown in FIGS. 5-6, the system 1 may comprise the assembly 100 positioned inferiorly PI and the assembly 200 positioned superiorly PI. FIGS. 7-8 show a different configuration of the system 1 of FIGS. 5-6 which has the assembly 100 positioned inferiorly PI and a different embodiment of the assembly 200 positioned superiorly P2.

FIGS. 26 to 31 schematically show a particular configuration of the system 1 which comprises an assembly 300 positioned superiorly P2. Preferably, but not exclusively, such system 1 may comprise the assembly 300 positioned superiorly P2 and the assembly 100 in the lower position PI.

The assembly 300 may comprise a hinge, for example the hinge 210, operatively coupled with the door A by means of an arm 301. Preferably, such assembly 300 may be configured to act as a door lock in a per se known manner.

In particular, the door A may comprise a seat 302, for example obtained by milling, to house a slidable element 303 operatively connected with the arm 301 so that the rotation of the door A promotes the sliding of the slidable slider 303 and the rotation of the arm 301 around the pivot of the hinge 210. On the other hand, should the assembly be a door lock, the rotation of the pivot of the hinge 210 may promote the rotation of the arm 301 and the sliding of the slider 303 from the door open position (FIG. 31) to the door closed position (FIG. 29).

Although not shown in the attached figures, the system 1 may be configured differently. For example, it may comprise the assembly 100 positioned superiorly P2 and the assembly 200 positioned inferiorly PI.

Should the system 1 comprise more than one assembly 100 and/or 200, the axes X' and/or X" may be substantially coincident to define the rotation axis X. In other words, each assembly 100 and/or 200 may have a respective rotation axis. Should the system 1 comprise the pair of assemblies 100 and/or 200 installed superiorly P2 and inferiorly PI, the rotation axis X' of the assembly 100 or 200 arranged inferiorly may substantially coincide with the rotation axis X" of the assembly 100 or 200 arranged superiorly so that the two axes X' and X" define the rotation axis X of the door A.

Essentially, the assembly 100 may comprise a male element 110' and a female element 120' which can be mutually engaged. In particular, as better explained hereinafter, the male element 110' may be slidable between an extended operative position in which the male 110' and female 120' elements are mutually engaged for rotatably coupling the door A and the frame S and a retracted operative position in which it allows the disengagement of the male and female element and therefore the de-coupling of the door A and of the frame S.

Thanks to this characteristic, when the male element 110' is in the retracted position, the door A may be moved along a plane p' substantially perpendicular to the rotation axis X, that is the door A may be de-coupled from the frame S. Once the male element 110' is at the female element 120', the male element 110' may pass from the retracted position to the extended position so as to be mutually engaged with the female element 120' and rotatably constrain the door A with the frame S.

Advantageously, this may firstly allow to install the female element 120' in the frame S while the door A with the male element 110' may be coupled with the frame S at any subsequent time, for example over the subsequent days. As a matter of fact, it is not necessary that all parts of the system 1 or of the assembly 100 be installed at the same time. For example, should the frame S be installed in a room, the horizontal floor may define the plane p' while the rotation axis X may be substantially vertical and perpendicular to the floor.

Also the de-coupling of the door A and of the frame S may be extremely easy and quick. As a matter of fact, the male element 110' may be moved from the extended position to the retracted position to mutually disengage the male and female elements and therefore de-couple the door A and the frame S.

Suitably, there may be provided for elastic means 170 for promoting the sliding of the male element 110' from the retracted position to the extended position, and movement means 180 acting on the male element 110' so as to promote the sliding thereof from the extended position to the retracted position so as to allow the disengagement of the male and female elements 110' 120'.

As better explained hereinafter, the movement means 180 may be suitable to be actuated from the external by an operator, preferably selectively.

In this manner, upon coupling the door A and the frame S, acting on the movement means 180 may allow to disengage the male and female elements 110' 120' so as to de couple the door A and the frame S.

Below is the description of a preferred but not exclusively embodiment of the assembly 100 with particular reference to FIGS. 9 - 16.

Essentially, the assembly 100 may comprise at least one coupling device 110 (FIGS. 9 - 14) which may include the male element 110', and at least one attachment device 120 (FIGS. 15 - 16) which may include the female element 120'. The coupling device 110 may preferably be coupled to the door A, while the attachment device 120 may be coupled to the frame S.

The coupling device 110 may comprise a main body 111 which may internally include a working chamber 112 defining an axis X' and a pivot 115 slidable in the working chamber 112 along the axis X'.

Preferably, the main body 111 may include a blind hole 112. The latter may define the working chamber 112. The main body 111 may therefore comprise an opening 16 through which the pivot 115 may be inserted into the chamber 112.

The pivot 115 may define the male element 110' and it may slide between a retracted operative position and an extended operative position.

The pivot 115 may therefore comprise an end portion 51 designed to interact with the female element 120'. In particular, the pivot 115 may be slidable along the axis X' between the retracted position in which it does not protrude from the main body 111 and an extended position in which at least the end portion 51 protrudes from the main body 111.

In particular, the device 110 may comprise an operative surface 15 designed to abut against the attachment device 120. Such operative surface 15 may be substantially flat so as to define a plane p. In use, such plane p may remain substantially parallel to the plane p', that is to the floor. Preferably, as shown in the attached figures, the plane p may be substantially perpendicular to the sliding axis X' of the pivot 115.

When the pivot 115 is in retracted position, the end portion 51 may remain substantially flush with the operative surface 15 so as not to protrude from the plane p (FIGS. 12), while in extended position the end 51 may protrude with respect to the plane p (FIGS. 10 and 14B).

It is clear that such aspect is preferred but not exclusively. For example, when the pivot 115 is retracted, it may protrude slightly from the operative surface 15 that is it may protrude from the plane p. In any case, the door P and the frame S may be equally coupled/de-coupled.

Suitably, the main body 111 may be substantially parallelepiped-shaped and it may comprise a lower face 12 designed to remain facing the attachment device 120.

Although in the present document reference is made to the lower face 12 and facing toward the attachment device 120, it is clear that upper and lower are relative references. As a matter of fact, the device 110 may be indistinctively installed in the door A at the upper position P2 or at the lower position PI. In any case, the face 12 may be the one facing the attachment device 120.

Furthermore, it is clear that the coupling device 110 and the attachment device 120 may preferably but not exclusively be fixed respectively in the door A and in the frame S.

According to a particular embodiment shown in FIG. 14B, the face 12 of the main body 111 may include the operative surface 15.

On the other hand, according to a different embodiment, there may be provided for anti-friction elements designed to remain - in use - interposed between the main body 111 and the attachment device 120 so as to facilitate the mutual rotation of the latter. Such anti friction elements may comprise the operative abutment surface 15, or, although not shown in the figures, may be interposed between the latter and the main body 111.

The anti-friction elements may be different depending on the needs. For example, the anti-friction elements may comprise a self-lubricating bearing 162, a ball bearing and/or a bushing of the per se known type not shown in the attached figures.

Furthermore, in this manner, the weight of the door A may be supported, for example, by a self-lubricating bearing 162.

It is clear that should there be the bearing 162, the operative surface 15 may be slightly spaced from the face 12.

According to a particular embodiment, there may be provided for at least one adjustment element 160 so as to allow the sliding of the surface 15 along the axis X' with respect to the face 12 of the body 111.

This characteristic may allow to adjust the distance between the body 111 and the plane p for abutment 15 with the attachment device 120, and therefore the adjustment of the distance of the door A from the frame S.

Suitably, the adjustment elements 160 may comprise a plug 161 at the opening 16 to close the chamber 112. Such plug 161 may be movable between a retracted configuration (FIG. 10 and FIG. 12) and an extended configuration (FIG. 14A).

Advantageously, the plug 161 may be suitable to be selectively screwed/unscrewed into the opening 16. In particular, the opening 16 may comprise threaded side walls 17, while the side walls 161' of the plug 161 may be counter-threaded with respect to the side walls 17.

The plug 161 may comprise a portion 163 designed to be faced toward the attachment device 120 and a portion 164 opposite to the portion 163 designed to be faced toward the seat 112. Suitably, the portion 163 may house the bearing 162.

In this manner, to the screwing/unscrewing of the plug 161 there may correspond the sliding of the operative surface 15 with respect to the face 12 along the axis X'.

The translation of the plug 161 may therefore allow to change the distance between the face 12 of the coupling device 110 and the attachment device 120, that is it may allow to change the height of the door A with respect to the floor S.

The sliding of the plug 161 and therefore of the operative surface 15 may measure a few millimetres, for example of about 2-10 mm.

Suitably, there may be provided for operating means 165 acting on the plug 161 so as to allow the operator to promote the rotation thereof. For example, the plug 161 may comprise a shaped portion 165, for example hexagonal, designed to remain outside the body 111 so as to allow an easy screwing/unscrewing of the plug 161 by the user using a wrench. Preferably, such shaped portion 165 may remain external in use so as to allow the operator to change the height of the door A with respect to the floor S.

Suitably, there may be provided for a grub screw 166 passing through a hole 168 in the body 111 acting on the plug 161 and having an end 167 accessible by the operator from the external. Such grub screw 166 may lock the screwing/unscrewing of the plug 161. For example, the grub screw 166 may act on the thread 16 so as to prevent the translation of the plug 161.

In this manner, advantageously, once the distance between the operative surface 15 and the face 12, and therefore the distance of the door A from the frame S has been determined, acting on the grub screw 166 allows to lock such distance preventing possible rotations of the door A from rotating the plug 161 too, therefore changing the height of the door A.

Preferably, the hole 168 may be arranged at the face 13 of the body 111 similarly to the opening 81. In other words, the face 13 may remain accessible to the operator so that the latter can act on the grub screw 166 and on the pin 182.

Irrespective of the above, the working chamber 112 may be substantially cylindrical shaped and it may comprise a bottom wall 113 with a through opening 31 so as to allow the end 51 of the pivot 115 to pass through the bottom wall 113. The opening 31 may have a diameter substantially smaller than the opening 16 so as to prevent the pivot 115 from protruding from the chamber 112.

It is clear that the bottom wall 113 may include the surface 22.

Suitably, in the embodiment described above, the plug 161 may have a through hole defining the opening 31 for the portion 51 of the pivot 115, while the inner wall of the through hole 31 may define the guide wall 32. Furthermore, the upper portion 164 of the plug 161 may include the bottom wall 113 of the chamber 112. In other words, the plug 161 may close the chamber 112.

The opening 31 may preferably be circular. In this case, also the wall 32 may be circular, in particular it may be cylindrical.

Advantageously, the pivot 115 is locked in the extended position by the pin 182 so as to allow to screw/unscrew the plug 161 freely.

Generally, there may be provided for means 117 for guiding the sliding of the pivot 115 along the axis X'. Advantageously, such means 117 may further prevent the translation thereof along a direction transversal to the axis X'.

The working chamber 112 may comprise a shaped portion 114 opposite to the wall 113. The wall 32 of the hole 31 and the portion 114 may be configured to guide the sliding of the pivot 115 along the axis X' therefore defining guide means 117 of the pivot 115 in the working chamber 112.

To this end, the through opening 31 may have a diameter substantially equal to the diameter of the portion 51 of the pivot 115, while the portion 114 may comprise a cylindrical seat 41 having diameter substantially equal to or slightly larger than the portion 52 of the pivot 115.

More particularly, the pivot 115 may comprise the end portion 52 opposite to the portion 51 and a central portion 116 interposed between the end portions 51, 52. The end portion 51 may slide through the opening 31 so as to be guided by the walls 32 of the latter, while the portion 52 may slide in the cylindrical seat 41 so as to be guided by the walls 42 of the latter.

Preferably, but not exclusively, the portions 51, 52 and the opening 31 and the seat 41 may all be substantially cylindrical-shaped.

The working chamber 112 may comprise stop means so as to act as a stop for the pivot 115 when the latter reaches the retracted or extended position.

The working chamber 112 may comprise at least one abutment surface 21 designed to come into contact or to remain in proximity with a corresponding abutment surface 61 of the pivot 115 when the latter is in retracted position.

Preferably, the working chamber 112 may comprise a pair of opposite operative surfaces 21, 22 while the central portion 116 of the pivot 115 may comprise corresponding opposite operative surfaces 61, 62.

Suitably, the surfaces 21, 22 and the surfaces 61, 62 may have an extension substantially perpendicular to the axis X'.

In particular, when the pivot 115 is in retracted position, the surfaces 21 and 61 may be in proximity or in mutual contact and the surfaces 22 and 62 may be spaced from each other, while when the pivot 115 is in extended position, the surfaces 21 and 61 may be spaced apart and the surfaces 22 and 62 may be in mutual contact or in proximity.

It is clear that possibly the surfaces 21, 22 may define the end-of-stroke of the pivot 115. In this case, the surfaces 22, 62 and 21, 61 they may be in abutment position.

The working chamber 112 may comprise a central portion 118 having diameter substantially larger than the opening 31 and the seat 41 so as to form corresponding steps which include the abutment surfaces 21, 22.

The central portion 118 may be substantially cylindrical-shaped and it may have diameter substantially equal to diameter of the central portion 116 of the pivot 115 so that the central portion 118 guides the pivot 115. In particular, the central portion 118 may be substantially cylindrical-shaped and it may therefore have an inner surface which may interact with pivot 115 to guide the latter.

In other words, the guide means 117 of the pivot 115 may also comprise the central portion 118 of the chamber 112, preferably the inner surface of the portion 118.

The elastic means 170 may be substantially automatic so as to force the pivot 115 toward the extended position. For example, the means 170 may comprise one or more spiral springs 171. Preferably, the spiral spring 171 may be arranged in the working chamber 112 between the pivot 115 and the portion 114 of the chamber 112. For example, the cylindrical portion 114 may have a diameter slightly larger than the diameter of the portion 52 so as to define an interspace 172 for housing the spring 171. In other words, the spring 171 may be fitted onto the portion 52 of the pivot 115.

Advantageously, the central portion 116 may comprise an abutment surface 67 for the spring 171 which may be contiguous to the surface 61 or it may be part of the surface

61.

In any case, the spring 171 may promote the moving away of the pivot 115 from the portion 114, and therefore the sliding of the pivot 115 from the retracted position to the extended position.

Suitably, there may be provided for movement means 180 acting on the pivot 115 and/or on the chamber 112 so as to promote the sliding of the pivot 115 from the retracted position to the extended position and/or vice versa.

Preferably, as shown in the attached figures, the means 180 may be configured to promote the sliding of the pivot 115 from the extended position to the retracted position. Preferably, the means 180 may prevent the sliding pivot 115 from the retracted position to the extended position therefore acting as locking means.

Advantageously, as better explained hereinafter, the means 180 may be actuated by an operator. Preferably, such means 180 may be actuated even when the door A is installed, that is when the male and female elements 110' and 120' are mutually engaged, so as to allow the movement of the pivot 115 and the ensuing disengagement of the elements 110' and 120'.

Generally, the expression "in use" will be used to indicate the door A installed on the fixed frame F.

Therefore, described hereinafter are the movement means 180 which may essentially comprise a pin 182 designed to interact with the pivot 115 so as to promote and/or lock the movement thereof as better explained hereinafter.

In particular, the chamber 112 may comprise a hole 181 passing through the chamber 112 and substantially transversal with respect thereto. The hole 181 may define a transversal axis Y, preferably substantially perpendicular with respect to the axis X'.

Preferably, such hole 181 may be at the central portion 118 of the chamber 112. During use, the central portion 116 of the pivot 115 may remain at such hole 181.

Preferably, the hole 181 may be a blind hole coaxial to the axis Y. In other words, the central portion 118 may comprise an opening 81 and a recess 82 facing the opening 81 and thereat. The opening 81 and the recess 82 may therefore be coaxial to the axis Y.

Suitably, there may be provided for the pin 182 which can be inserted into the hole 181. Preferably, once the pin 182 has been inserted into the hole 181, an end 183 of the former may remain at the recess 82.

The pin 182 may have a length substantially equal to the length of the blind hole 181 so that once inserted, the end 183 of the pin 182 may remain abutting against the base wall 84 of the recess 82.

Suitably, the opposite end 184 of the pin 182 may remain internal or substantially flush with the outer face 13 of the body 111. In this manner, advantageously, the device may be particularly compact and this may allow to avoid the presence of protrusions.

The pin 182 may therefore move between an operative position in which it is in abutment position or in proximity of a portion 85' of the recess 82 (FIGS. 10 and 11) and an opposite operative position in which it is in abutment position or in proximity of an operative position 85" of the recess 82 (FIGS. 12 and 13).

The pin 182 and the pivot 115 may be mutually configured so that when the pin 182 is in proximity of the portion 85" (that is the first operative position shown in FIG. 11), the pivot 115 may slide between the extended position and the retracted position. In cases where there are elastic means 170, the pivot 115 may therefore be forced in extended position. On the other hand, when the pin 182 is in proximity of the portion 85' (that is the second operative position shown in FIG. 13), the pivot 115 may be in retracted position and the sliding thereof from the retracted position to the extended position may be prevented, even in the presence of the means 170. In this case, advantageously, the means 180 may therefore act as a locking element, that is prevent the sliding of the pivot 115 from the retracted position to the extended position.

In any case, as better explained hereinafter, the pin 182 may interact with the pivot 115, so that to the passage of the pin 182 from the first to the second operative position there may correspond the passage of the pivot 115 from the extended position to the retracted position.

The recess 82 may be substantially cylindrical-shaped and it may comprise a base wall 84 substantially coaxial to the axis X' and a side wall substantially perpendicular to the axis X'. The portions 85' and 85" may be two opposite portions of the side wall of the recess 82.

The pin 182 may have a diameter substantially smaller than that of the hole 181. In particular, should the hole 181 be a cylindrical hole, the latter may have a diameter substantially equal to that of the opening 81 and of the recess 82.

The pin 182 may be inserted through the opening 81 in an eccentric manner. In other words, the pin 182 may define an axis Y' which may be parallel and spaced apart with respect to the axis Y defined by the hole 181.

The pin 182 may therefore rotate around the axis Y so as to pass from the first to the second operative position and vice versa.

Suitably, there may be provided for means 190 for guiding the pin 182. For example, the means 190 may comprise a disc-shaped element 191 designed to be positioned in the recess 82 and a disc-shaped element 195, for example a plug, designed to be positioned in the opening 81.

Suitably, the disc 195 may comprise a semi-circular peripheral shape 198 designed to remain at a corresponding semi-circular shape 83 in the side wall 86 of the opening 81. There may therefore be provided for a through pin 199 designed to interact with both peripheral shapes 198 and 83 so as to hold the disc 195 in position.

It is clear that the pin 199 may therefore be inserted into a suitable hole 17 passing through the body 111 which may have a substantially transversal extension, preferably perpendicular with respect to the axis Y. The hole 17 may include the shape 83.

The disc 191 and the disc 195 may be both rotatably free to rotate around the axis Y. Preferably, the disc 191 and/or the disc 195 may have a diameter substantially equal to the diameter of the recess 82 and of the opening 81 respectively. In this manner, the wall 85 of the former and the wall 86 of the latter may rotatably guide the disc 191 and the disc 195 respectively.

Suitably, the disc 191 may comprise a seat 192 for the end 183 of the pin 182 which may be eccentric with respect to the axis Y. On the other hand, the disc 195 may comprise a seat 196 for the end 184 of the pin 182, preferably, also the seat 196 may be eccentric with respect to the axis Y.

The seats 192 and/or 196 may be counter-shaped with respect to the respective ends 183, 184 of the pin 182.

The disc 195 may further comprise means 197 suitable to promote the rotation thereof around the axis Y. Such means 197 may be accessible from the external so as to allow the operator to rotate the disc 195 around the axis Y and - as a result - promote the passage of the pin 182 between the first and second operative position.

For example, the plug 195 may comprise a hexagonal hole 197 so as to allow the operator to rotate the disc 195 from the external using an Allen wrench or the like.

Suitably, the structure body 111 may have a face 13 which may include the opening 81. The device 110 may therefore be installed on the door A so that the face 13 remains accessible to the operator, for example remains exposed.

In this manner, the operator may act on the disc 195 so as to promote the passage of the pin 182 between the first and the second operative position and - as a result - of the pivot 115 as described above.

Preferably, the face 13 of the structure body 111 may be substantially parallel to the axis X'. However, it is clear that the face 13 may be any area of the structure body 111, provided that it allows access thereto by the operator.

The pivot 115 may comprise an area 63 designed to interact with the pin 182 so that the rotation of the latter promotes the sliding of the former.

Preferably, the pivot 115 may comprise a through hole 63 defining the area 63. In particular, the pin 182 may comprise a central portion 185 designed to interact with the hole 63 of the pivot 115 so that the movement of the former promotes the sliding of the latter. Preferably, the hole 63 may be configured so that when the pin 182 is in the second position (FIG. 11), the pivot 115 may slide between the retracted and extended positions while the pin 182 may remain stationary.

Suitably, the central portion 185 of the pin 182 may be substantially cylindrical while the hole 63 may preferably have a circular cross-section much larger than the diameter of the pin 182. For example, such hole may have a sufficiently large diameter so as to allow the rotation of the pin 182 around the axis Y.

In the light of the above, it is clear that when the pin 182 is in the first configuration (FIG. 11) it may define the end-of-stroke position of the pivot 115.

Although not shown in the attached figures, there may be provided for means for locking the pivot 115 in extended position. Such means may comprise a pin or a grub screw designed to interact with the pivot 115 so as to lock it in such extended position. For example, such means may be similar to the means 180 or 166 described above. However, it is clear that the means for locking the pivot 115 in the extended position may be of any type.

Preferably, also such means for locking the pivot 115 may be suitable to be selectively actuated by the operator and/or they may remain accessible to the operator from the external once the door A has been installed. For example, they may be accessible from the same face 13.

The configuration described above has various advantages. However, it is clear that the pivot 115 may be moved in a manner different from the one described above, without departing from the scope of protection of the present invention.

For example, the hole 181 for the pin 182 may have a particular shape, for example it may be L-shaped. Such particular shape may for example define guide means 190, while the horizontal portion of the L-shape may define the means 180 for locking the pin 182.

On the other hand, according to a different embodiment not shown in the figures, the pivot 115 may be locked in retracted position by means of pivots or other per se known systems.

Irrespective of the above, the attachment device 120 may include the female element 120'. In particular, the attachment device 120 may essentially comprise a seat 125 for housing the pivot 115, and in particular the portion 51 thereof. Essentially, the attachment device 120 may comprise a planar element 121 with a central hole 125. Preferably, the surface 15 may abut against the planar element 121.

The planar element 121 may define a plane nl while the hole 125 may have an extension along a respective axis XI substantially perpendicular to the plane nl. Suitably, when the pivot 115 is engaged in the hole 125, the axis X' of the coupling device 110 may coincide with the axis XI of the attachment device 120.

Preferably, as schematically shown in FIG. 16, the attachment device 120 may comprise a planar element 122 peripheral to the planar element 121.

Advantageously, the planar element 121 may translate in the plane nl. This may allow to facilitate the aligning of the axes X' and XI.

To this end, there may be provided for a grub screw 123 passing through the elements 121 and 122 so as to allow the translation of one with respect to the other.

In particular, the element 121 may comprise a through hole 128 while the element 122 may comprise a pair of holes 129 arranged at the hole 128. In this manner, once the grub screw 123 has been inserted into the holes 128, 129, the former may interact both with the element 121 and with the element 122.

In particular, the element 121 may have an opening for the insertion of the grub screw 123 which may be closed by means of a pin 124 inserted into the opening 124' perpendicular to the hole 129 so as to avoid the protrusion of the grub screw 123, and another opposite opening 129" which has a relief with a diameter smaller than the grub screw 123 so as to prevent the protrusion thereof through the opening 129" and at the same time allow access to the grub screw 123 by the operator from the external.

In particular, the grub screw 123 may comprise a shaped end 123', for example hexagonal, which may remain at the opening 129" so as to allow the operator to screw/unscrew the grub screw 123, for example using an Allen key.

The hole 125 may be in a substantially central position with respect to the element 121. On the other hand, the hole 128 may be spaced from the hole 125. For example, it may be obtained in the element 121 in the space between the hole 125 and the side walls thereof.

Advantageously, the element 121 may be guided in the sliding thereof with respect to the element 122. The sliding may therefore occur along a direction dl substantially parallel to the grub screw 123.

In this manner, the operator may adjust the mutual position of the elements 121 and 122, and therefore of the pivot 115 and of the seat 125, and therefore of the door A and of the frame S along a direction dl substantially coincident with or parallel to the one defined by the axis of the grub screw 123.

In particular, the element 121 may have a pair of opposite side walls 126 designed to interact, preferably in contact, with a corresponding pair of opposite side walls 127 of the element 122 so that the latter guide the former.

Advantageously, using a single grub screw 123 may be sufficient to adjust the mutual translation of the elements 121 and 122 which may be positioned in proximity of the walls, that is in central position.

Below is the description of a preferred but not exclusively embodiment of the assembly 200 with particular reference to FIGS. 17 - 25.

Essentially, such assembly 200 may comprise a hinge 210 and a corresponding attachment device 220.

Similarly to the assembly 100, the hinge 210 and the attachment device 220 may comprise corresponding male 210' and female 220' elements which can be mutually engaged/disengaged similarly to the male 110' and female 120' elements described above so as to allow to couple or de-couple the door A and the frame S.

The hinge 210 may be of any type, mechanical and/or hydraulic, it may be automatic, it may be for opening and/or closing.

For example, the hinge 210 may be obtained according to the teaching of the international patent application W02020/079496 on behalf of the same applicant.

Preferably, the hinge 210 may comprise a hinge body 211 and a pivot 215 which may define the male element 210', while the attachment device 220 may comprise a seat 225 defining the female element 220'.

For example, FIGS. 24 and 25 show an example of hinge 210 with the pivot 215.

Suitably, as shown in FIGS. 21 and 23, the seat 225 may be movable between a retracted operative position and an extended operative position. In other words, similarly to the pivot 115, the seat 225 may slide from the extended configuration to the retracted configuration.

Once mutually engaged, the seat 225 and the pivot 215 may be substantially aligned along an axis X" so as to allow the mutual rotation of the hinge 210 and of the pivot 215 with respect to such axis X".

The attachment device 220 may therefore comprise an element 226 which may include the seat 225. Suitably, the latter may be counter-shaped with respect to the pivot 215. In particular, should the hinge be an automatic hinge, the seat 225 and the pivot 215 may be mutually counter-shaped.

The attachment device 220 may internally comprise a working chamber 222 substantially coaxial to the axis X". The element 226 may therefore be slidable along the axis in the working chamber 222.

In particular, the element 226 may slide between a position proximal to the bottom wall 224 of the working chamber 222 and a distal position to which there may correspond the sliding of the seat 225 between the retracted operative position and the extended operative position.

The working chamber 222 may comprise an abutment surface 227 designed to interact with the element 226 so as to act as an end-of-stroke.

Preferably, the working chamber 222 may have a substantially rectangular cross- section, and the slidable element 226 may also be substantially rectangular-shaped.

Suitably, the inner walls 228 of the chamber 222 may guide the slidable element 226. For example, one or more portions of the side walls 229 of the latter may interact with one or more portions of the inner walls 228 of the chamber 222.

Possibly, the slidable element 226 may have lateral overall dimensions substantially equal to the lateral overall dimensions of the portion of the chamber 222 in which it slides so that the respective side walls 228 and 229 are in contact with each other to guide the sliding of the element 226. For example, the element 226 and the chamber 222 may be substantially rectangular-shaped, preferably with the bevelled corners.

Suitably, the attachment device 220 may comprise means 270 for forcing the seat 225 in extended configuration. For example, there may be provided for one or more springs 271 interposed between the disc-shaped element 226 and the bottom wall 224.

Furthermore, advantageously, there may be provided for means 230 for preventing the protrusion of the slidable element 226 from the chamber 222. For example, the means 230 may comprise a screw 231 passing through the element 226 and designed to be engaged in the bottom wall 224.

In greater detail, the element 226 may comprise a cylindrical protuberance 236 extending substantially coaxial to the internally hollow axis X" for housing the head 232 of the screw 231. Such protuberance may have a relief 237 for preventing the protrusion thereof from the screw 231 and therefore the protrusion of the element 226 from the seat

222.

In other words, the attachment device 220 may comprise an operative surface 251 which may define a plane n2 which may remain substantially facing the hinge 210 and in particular the pivot 215.

Suitably, when the element 226 is in extended position, it may protrude with respect to the operative surface 251, that is with respect to the plane n2 (FIGS. 22 e 23), while when the element 226 is in retracted position, it may remain inside the attachment device 220 and not protrude with respect to the operative surface 251, that is with respect to the plane n2 (FIGS. 20 and 21).

In this manner, the pivot 215 and the seat 225 may remain mutually engaged even in the presence of small changes between the distance of the door A and of the frame S, that is of the hinge body 211 and of the attachment device 220.

In other words, the sliding of the element 226 and therefore of the seat 225 may act as an adjustment for the distance between the door A and the frame S, that is along the axis X".

Similarly to the description disclosed above regarding the coupling device 100, such embodiment is preferred but not exclusive given that according to a different embodiment not shown in the attached figures the element 226 in retracted position may protrude from the operative surface 251.

According to a particular aspect of the invention, there may be provided for means 280 for locking the seat 225 in retracted position or in an intermediate position wherein the element 226 does not protrude from the operative surface 251 so as to allow the de coupling of the door A from the frame S. Possibly, such means 280 may lock the seat 225 in a position in which the element 226 protrudes slightly from the surface 251 and it may equally allow the coupling/the de-coupling of the door A from the frame S.

In particular, the means 280 may comprise an operative surface 281 and a grub screw 283 mutually configured so that to the screwing/unscrewing of one there corresponds a sliding of the other along the axis X".

For example, with reference to FIG. 17, the element 226 may comprise a portion with an inclined plane 281 designed to interact with a grub screw 283 so that to the screwing of the latter there corresponds the sliding of the seat 225 toward the retracted position.

The element 241, better described hereinafter, may comprise a further through hole 245 for the grub screw 283 so that the latter has an end 283" which abuts against the inclined plane 281 and an opposite end 283' which can be operated by the operator.

In other words, the grub screw 283 may prevent the action of the elastic means 270 from forcing the seat 225 toward the extended position, defining a maximum extended position. Upon suitably screwing the grub screw 283, such position may correspond to the one in which the element 226 does not protrude with respect to the plane defined by the element 241.

On the other hand, unscrewing the grub screw 283 may allow the free sliding of the element 226, and therefore of the seat 225, between the extended position and the retracted position.

The attachment device 220 may comprise a substantially planar element 241 which may include the surface 251 and therefore define the plane p2. The latter may be substantially perpendicular with respect to the axis X". The element 241 may suitably include an opening 242 so as to allow the sliding of the element 226.

Possibly, as schematically shown in FIG. 18, the attachment device 220 may be configured so that the seat 225 can translate slightly in the plane n2 so as to facilitate the aligning with the pivot 215.

Possibly, furthermore, the seat 225 may rotate slightly around the axis X". This will allow to adjust the mutual position of the pivot 215 and of the seat 225 when the door A is closed. For example, the zero value of the hinge 210 may be adjusted.

The attachment device 220 may therefore comprise means 260 for adjusting the translation and/or rotation of the seat 225. Suitably, the means 260 may be actuated by the user.

In particular, the attachment device 220 may comprise a main body 221 which may include the seat 222 which may be arranged inside the opening 242 of the planar element

241.

The means 260 may therefore act on the body 221 so as to rotate the latter with respect to the element 241 which may therefore be fixed to the door A or to the frame S.

For example, as shown in FIGS. 17 - 19, there may be provided for a pair of through grub screws 263 so as to allow mutual translation and/or rotation of the element 241 and of the element 221.

The grub screws 263 may therefore interact with the body 221 and with the element 241. Preferably, the grub screws 263 may be coupled with the element 241 similarly to the grub screw 123 with the element 121.

As a matter of fact, the element 241 may comprise a pair of opposite and coaxial holes 244 so as to allow the insertion of the respective grub screw 263 therethrough and through the respective opening 224 of the body 221.

One of the holes 244 may be closed by means of a pin 269, while the other may have a relief so that the grub screw 263 cannot protrude from the holes 244 and at the same time so that there is an opening accessible from the external so as to operate the end 263' of the grub screw.

It is clear that such openings may be accessible to the operator even once the door A has been mounted so that the operator may adjust the position of the latter with respect to the frame S by acting on the grub screws 123 and/or on one or more of the grub screws 263 as described above.

On the other hand, in order to allow the coupling of the body 221 with the grub screws 263, the former may comprise a pair of through threaded holes 265 designed to interact with the grub screws 263. They may be possibly provided for a pair of cylindrical elements 22 coupled with the body 221 (for example by means of screws 268 passing through the body 221) which include such threaded hole 265. Furthermore, this may allow to facilitate the rotation of the element 226 with respect to the element 241.

Preferably, the grub screws 263 may be arranged parallel and spaced with respect to each other.

Suitably, the grub screws 263 may be on opposite sides with respect to the element 226 so as to allow the translation of the body 221 along a direction d2 (if actuated in an identical manner, for example in the same rotation direction) or the rotation of the body 221 with respect to the axis X" (if actuated in an opposite manner, for example with an opposite rotation direction).

It is clear that the attachment device 220 may be coupled with the frame S while the hinge 210 with the door A (FIGS. 7 and 8) or the attachment device 220 may be coupled with the door A while the hinge 210 may be coupled with the frame S (FIGS. 5 and 6).

In any case, the assembly 200 may allow the mutual rotation of the door A with respect to the frame S around the axis X", while the assembly 100 may allow the mutual rotation of the door A with respect to the frame S around the axis X'.

Advantageously, the elements 241 and 121 may be installed so that the grub screw 123 and the grub screws 263 are substantially perpendicular to each other, that is so that the respective directions dl and d2 are substantially perpendicular to each other and lying in parallel planes. In this manner, once the system with the assembly 100 and the assembly 200 has been installed, the door A may be moved along the direction dl substantially parallel to or coincident with the grub screw 123, along the direction d2 substantially parallel to or coincident with the grub screws 263 or rotatably around the axis X" which may coincide with the rotation axis X of the door A.

The invention is susceptible to numerous modifications and variants, all falling within the scope of protection of the attached claims. All details can be replaced by other technically equivalent elements, and the materials can be different depending on the needs, without departing from the scope of protection defined by the attached claims.