EA027728B1 - Hinge for rotatably moving a door, in particular a reinforced door - Google Patents

Abstract

A concealed hinge for the rotatable movement of a door (D) comprising a fixed element (10) and a movable element (20), the latter being rotatably coupled with the fixed element (10) to rotate between an open position and a closed position of the door about a first longitudinal axis (X). The fixed element (10) includes a box-shaped body (11), while the movable element (20) includes a connecting plate (21). The hinge also includes a cam element (60) rotating about the first axis (X), the box-shaped hinge body (11) further including at least one working chamber (70), a longitudinal axis (Y) of which is spaced apart from the first axis (X) and substantially parallel thereto. The at least one working chamber (70) includes a bottom wall, a plunger member (80) slidable along the second longitudinal axis (Y) and elastic means (90) operatively connected with the plunger member (80), the latter including a front face (81) facing the cam element (60) and interacting therewith so that the rotation of the cam element (60) about the first axis (X) corresponds to the sliding of the plunger member (80) along the second axis (Y) and vice- versa. Said working chamber (70) includes a working fluid acting on said plunger member (80) to hydraulically counteract the action thereof, said plunger member (80) separating said working chamber (70) into at least one first and one second compartments (72, 73) and including a one-way valve means for controlling the flow of the working fluid between said compartments upon the moving of said plunger member and a tubular element (86) with a front portion (87) placed in said second compartment (73), a rear portion (88) placed in said first compartment and a side wall (89) facing the side wall (74) of said working chamber.

Description

The invention generally relates to the field of technology associated with closing or damping / control hinge hinges and, in particular, relates to a hidden hinge hinge for controlled rotational movement of a door, in particular a reinforced door attached to a tubular support structure containing a rear counter frame attached to a wall or similar support, and a front frame attached to a counter frame.

BACKGROUND OF THE INVENTION

As is known, closing or damping hinge hinges usually comprise a movable element, usually attached to a door, blinds and the like, pivoting on a fixed element, usually attached to a supporting frame or to a wall and / or floor.

In particular, the fixed element of the hidden hinge hinges for reinforced doors, etc. inserted into a tubular support structure comprising a rear counter frame attached to a wall or a similar support, and a front frame attached to the counter frame.

Typically, the movable element also comprises a connecting plate that is attached to the door, capable of being pulled out of the tubular support structure in the open position and fully retracted into the tubular support structure in the closed position.

In general, such hinge hinges are only of a mechanical type and do not allow you to somehow control the angle of the door opening or in any case do not allow you to control the movement of the same door.

The absence of any control makes such hinge hinges extremely dangerous, since due to the considerable weight of the reinforced door there is a danger of the said door breaking off the hinges or bending the tubular support structure to which the hinge hinge is attached.

Also, due to the considerable mass of the door, the hinge hinge is additionally prone to losing the initial position and / or to displacement.

Adjusting the position of the door is also difficult and difficult. In addition, at least two operators are required to perform the adjustment.

Another recognized disadvantage of these hinge loops is the large friction between the fixed and movable element, which leads to premature wear and frequent breakdowns, which necessitates constant maintenance.

From the documents I8 5075928, I8 2005/044661, ΟΒ 2000546 and I8 3707014, hinge loops of the aforementioned type are known.

Summary of the invention

The purpose of the invention is to at least partially overcome the aforementioned disadvantages by providing a hinge loop having great functionality, simple construction and low cost.

Another objective of the invention is to provide a hinge loop that allows you to control the movement of the door when it is opened and / or closed.

Another objective of the invention is to provide a strong and reliable hinge loop.

Another objective of the invention is to provide an articulated loop having extremely small dimensions.

Another objective of the invention is to provide a hinge hinge that automatically closes the door from the open position of the door.

Another objective of the invention is to provide a hinge hinge capable of supporting very heavy doors and shutters.

Another objective of the invention is to provide a hinge loop having a minimum number of components.

Another objective of the invention is to provide a hinge loop suitable for maintaining an accurate closed position for a certain time.

Another objective of the invention is to provide a hinge loop that is secure.

Another objective of the invention is to provide a hinge loop that is easy to install.

Another objective of the invention is to provide a hinge loop, simplifying operations for its maintenance and / or replacement.

Another objective of the invention is to provide a hinge hinge that allows easy adjustment of the door to which it is attached.

Another objective of the invention is to provide a hinge loop, which is bilateral, i.e. which can be used in a direct or inverted position without changing its behavior.

Similar tasks, as well as others, which will become apparent in the future, are solved using a hinge loop that has one or more of the features described and / or indicated in the claims and / or depicted.

These goals, as well as others, which will become more apparent in the future, are achieved by using a hinge loop having one or more of the features described, described in the claims and / or depicted here.

Suitably, one or more of claims 1 to 11 of the claims may provide a hidden hinge loop.

Concealed hinge hinge for the rotational movement of a door, in particular a reinforced door attached to a tubular support structure comprising a rear counter frame attached to a wall or a similar support, and a front frame attached to the counter frame, comprises a fixed element and a movable element rotatably attached to a fixed element for rotation around the first longitudinal axis between the open position and the closed position of the door.

Said fixed element comprises a box-shaped body for concealed location inside the tubular support structure, wherein said movable element comprises a connecting plate for attachment to a door capable of exiting the tubular support structure in said open position of the door and entering the tubular support structure in said closed position of the door.

The specified box-shaped body of the fixed element of the hinge loop contains at least one working chamber, the longitudinal axis of which is located at a distance from the specified first axis and essentially parallel to it, while the specified at least one working chamber contains a lower wall, a plunger sliding along the specified second longitudinal axis, and the elastic element, functionally connected to the specified plunger containing the front surface.

The hinge loop also contains a cam element rotating around the first axis, facing the front surface of the plunger and interacting with it, so that the rotation of the cam element around the first axis corresponds to the sliding of the plunger along the second axis and vice versa, while the specified plunger is made to slide along the specified the second longitudinal axis between the position close to the specified lower wall and the position remote from it, while the specified elastic element acts on the specified plunger r for the return of said approximate position to said distant position.

The specified working chamber further comprises a working fluid acting on the specified plunger to hydraulically counteract its movement, while the specified plunger divides the specified working chamber into at least one first and one second compartment, configured to change their volumes, in fluid communication with each other another and preferably adjacent to each other, while the specified elastic element is located in the specified first compartment, and the specified at least one first section the opening has a maximum volume, and accordingly, at least one second compartment has a minimum volume when the plunger is in a position remote from said lower wall and, accordingly, vice versa.

The specified plunger also contains a single-line valve for controlling the flow of working fluid between the specified at least one first and one second compartments when the specified plunger moves from one of these remote or approximate positions to another, respectively, specified approximate or distant position. A hydraulic circuit is also provided for the flow of the working fluid between the at least one first and one second compartments when the said plunger moves.

The specified plunger also contains a tubular element, the front part of which is located in the specified second compartment, and the rear part is located in the specified first compartment, and the side wall of which is facing the side wall of the specified working chamber. The specified hydraulic circuit is located inside the specified box-shaped body of the fixed element of the hinge loop, surrounding the at least one working chamber and contains at least one first inlet / outlet in the specified second compartment and the second and third inlet / outlet in the specified first compartment, this second hole is located upstream relative to the specified third hole.

In the first embodiment, said valve may be arranged to open when said plunger moves from said lower wall to allow the flow of working fluid from the second compartment to the first compartment and to close when said plunger moves to said lower wall to allow the working fluid to flow from the first compartment into the second compartment, and when the specified plunger enters the specified hydraulic circuit, the working fluid flows through the specified second and third holes and when the specified plunger leaves it, the working fluid flows through the specified first hole.

In this embodiment, said third hole may not be in fluid communication with the side wall of said tubular element throughout the course of said plunger from said remote position to said approximate position, while said second hole remains out of fluid communication with the side wall of said tubular element in the time of the first initial part of the indicated stroke of the plunger and is in fluid communication with the side wall of the specified tubular element during the second eye definitively part of said stroke such that said door has a first motion resistance when opening / closing of the first corner portion

- 2 027728 the trajectory of its rotation around the first axis corresponding to the specified first initial part of the stroke of the specified plunger, and the second resistance to movement when opening / closing the door for the second corner part of the trajectory of its rotation around the specified first axis corresponding to the second final part of the specified stroke.

Preferably, the hinge hinge may comprise first and second means for adjusting a cross-sectional area of said second and third holes, respectively, to enable a user to independently adjust said first and / or second resistance to movement when closing / opening a door.

Suitably, said resilient member may be a return spring, so that the hinge loop is a control hinge loop for controlling the rotational movement of the door. It should be understood that the term return spring means a spring whose size and / or configuration is sufficient to return the plunger from an approximate position to a distant one, but not enough to automatically close the door when it is open.

In a preferred embodiment, said cam element may be configured such that when the door is opened, said plunger moves from said remote position to said approximate position, wherein said first and second control means are capable of adjusting the first and second resistance to movement of the door along said first and second angular parts of the trajectories of rotation when it is opened.

In yet another alternative embodiment, said cam element may be configured such that when the door is opened, said plunger moves from said approximate position to said distant position, wherein said first and second control means are capable of adjusting the first and second resistance to movement of the door along said first and the second angular parts of the trajectories of rotation when it is closed.

On the other hand, in the second embodiment, said valve is configured to open when moving said plunger to said lower wall to allow flow of working fluid from the first compartment to the second compartment and to close when moving said plunger from said lower wall to allow flow of working fluid from the second compartment into the first compartment, and when the specified plunger enters the specified hydraulic circuit, the working fluid flows through the specified first opening ti, and when the specified plunger leaves it, the working fluid flows through the indicated second and third holes.

In this embodiment, said third hole may not be in fluid communication with the side wall of said tubular member throughout the course of said plunger from said approximate position to said distant position, such that said door moves at a predetermined opening / closing speed, wherein said second the hole is in fluid communication with the side wall of said tubular element during the first initial part of said plunger stroke and is not in fluid bone connection with the side wall of the specified tubular element during the second final part of the specified stroke of the plunger to bring the door into open / closed position.

Suitably, the hinge hinge may comprise third means for adjusting the cross-sectional area of said second hole to enable it to adjust the force by which the door is brought into an open / closed position, while fourth means for adjusting the cross-sectional area of said third hole is provided the ability to adjust the speed of opening / closing the door.

Suitably, said cam element can be configured such that when the door is opened, said plunger moves from said distant position to said approximate position, said elastic element being a drive spring, so that the hinge loop is a hinge loop for automatically closing the door from the open position, while the said third and fourth regulatory means are able to regulate the effort of bringing the door to the closed position and soon to stand at the door is closed.

Advantageous embodiments of the invention are described in accordance with the dependent claims.

A brief description of the graphic materials

Additional features and advantages of the invention will become more apparent upon consideration of the detailed description of some preferred, non-exclusive embodiments of the hinge loop 1, described as non-limiting examples using the accompanying graphic materials, in which FIG. 1a, 1b and 1c, respectively, are shown perspective views in the disassembled and assembled state of the first embodiment of the fastening system for attaching the hinge loop 1 to the frame P;

in FIG. 2a, 2b and 2c, respectively, are shown perspective views in the disassembled and assembled state of the second embodiment of the fastening system for attaching the hinge loop 1 to the auxiliary frame CP;

- 3 027728 in FIG. 3a and 4a show perspective views of a hinge hinge 1 connected to a reinforced door And when used, respectively, in an open and closed position;

in FIG. 3b and 4b are partial cross-sectional views of the hinge loop 1 of FIG. 3a and 4a, respectively, in the open and closed position;

in FIG. 5a, 5b, 5c and 5y, respectively, are shown views in an exploded state, in front and in section, of a first embodiment of a complete assembly consisting of a connecting plate 21 and an mounting bracket 30, wherein the section is made along the plane Us-Us and Uy-Uy;

in FIG. 6a, 6b and 6c respectively show exploded and cross-sectional views of a second embodiment of a complete assembly consisting of a connecting plate 21 and a mounting bracket 30, the cut being made along respective planes equivalent to the planes Us-Us and Yy-Yy in FIG. . 5b;

in FIG. 7a and 7b, respectively, show perspective views in an exploded state, as well as in an assembled state and in partial section of the first embodiment of the hinge loop 1;

in FIG. 8a and 8b, respectively, are top and perspective views of an embodiment of the hinge loop 1 of FIG. 7a and 7b in the closed position;

in FIG. 9a and 9b respectively show sectional and perspective views of an embodiment of the hinge loop 1 of FIG. 7a and 7b in the open position, the incision being made along the plane 1Xa-1Xa;

in FIG. 10 is an exploded perspective view of a second embodiment of hinge loop 1;

in FIG. 11 is an enlarged perspective view of the connecting plate 21 and the cam member 60 of the second embodiment of the hinge loop 1 of FIG. 10;

in FIG. 12a, 12b, 12c and 12y show a view of a second embodiment of the hinge loop 1 of FIG. 10 in the closed position, shown in perspective, in a section taken along the X11LX11b plane, in a section taken along the axis and enlarged with a fragment of FIG. 12c, respectively;

in FIG. 13a and 13b show a view of a second embodiment of the hinge loop 1 of FIG. 10 in a partially open position, shown in section along the axis and in section along a plane equivalent to the plane X11b-X11b in FIG. 12b, respectively;

in FIG. 14a and 14b show a view of a second embodiment of the hinge loop 1 of FIG. 10 in a fully open position, shown in section along the axis and in section along a plane equivalent to the plane X11b-X11b in FIG. 12c, respectively;

in FIG. 15 is an exploded perspective view of a third embodiment of a hinge loop 1;

in FIG. 16 is an enlarged perspective view of the connecting plate 21 and the cam member 60 of the third embodiment of the hinge loop 1 of FIG. fifteen;

in FIG. 17a and 17b show a third embodiment of the hinge loop 1 of FIG. 15 in a partially open position, shown in section along the axis and in section along a plane equivalent to the plane X11b-X11b in FIG. 12c, respectively;

in FIG. 18a, 18b and 18c show a view of a third embodiment of the hinge loop 1 of FIG. 15 in the fully open position, shown in section along the axis, in section along the plane equivalent to the plane X11b-X11b in FIG. 12c, and enlarged with fragments of FIG. 18a, respectively;

in FIG. 19 is an exploded perspective view of a fourth embodiment of a hinge loop 1;

in FIG. 20 is an enlarged perspective view of the connecting plate 21 and the cam member 60 of the fourth embodiment of the hinge loop 1 of FIG. nineteen;

in FIG. 21a and 21b show a fourth embodiment of the hinge loop 1 of FIG. 19 in a partially open position, represented in section along the axis and in section along a plane equivalent to the plane X11b-X11b of FIG. 12c, respectively;

in FIG. 22a and 22b show a view of a fourth embodiment of the hinge loop 1 of FIG. 19 in a fully open position, represented in section along the axis and in section along a plane equivalent to the plane X11b-X11b in FIG. 12c, respectively;

in FIG. 23 is an enlarged cross-sectional front view of the hinge loop 1, showing the spatial arrangement of the working portion 27 of the end portion 23 of the connecting plate 21 and the box body 11;

in FIG. 24 is a perspective view of yet another embodiment of hinge loop 1. Detailed description of some preferred embodiments

With reference to the above figures, the hinge 1, generally designated 1, will be particularly useful for rotational movement during opening and / or closing, possibly in a controlled manner, of a closing element элемента, such as a door, which can be attached to a fixed supporting structure ^, such as a wall.

In a preferred, but not exclusive embodiment, as shown in FIG. 1a-4b

- 4 027728 the hinge loop 1 can be hiddenly inserted into the tubular support structure, which, in a known manner, can be formed by the rear auxiliary frame CP, which can be attached to a wall or similar support, and the front frame P attached to the auxiliary frame CP .

In particular, in the first embodiment shown in FIG. 1a-1c, the hinge loop 1 can be attached to the frame P by means of a plate P ₁ supported in working position by means of screw devices VI, ν ₂ .

On the other hand, in the second embodiment shown in FIG. 2a-2c, the hinge loop 1 can be attached to the auxiliary frame CP by means of a plate P ₂ supported in position by a screw device ν ₂ .

On the other hand, in another embodiment depicted in FIG. 24, the hinge loop 1 can be attached to the frame P by means of a plate P ₃ , supported in working position by means of suitable screw devices capable of engaging inside the holes A ₁ , A ₂ .

In all embodiments, the hinge loop 1 can be covertly inserted into the support structure formed by the tubular rear auxiliary frame CP and the front frame P, through an opening O passing through the front frame.

Conveniently, the hinge loop 1 may include a fixed element 10 that can be attached to the frame P or to the auxiliary frame CP, which rotates on the movable element 20 so as to rotate around the longitudinal axis X, which can be essentially vertical, between the open position shown, for example, in FIG. 4a and 4b, and the closed position shown, for example, in FIG. 3a and 3b.

In particular, as shown in FIG. 3a-4b, the fixed element 10 may comprise a box-shaped body 11 of a hinge loop that can be hiddenly inserted into the support structure formed by the tubular rear auxiliary frame CP and the front frame P. On the other hand, the movable element 20 may include a connecting plate 21, which may be attached to door Ό and can be pulled out of the tubular support structure in the open position shown in FIG. 4a and 4b, and retracted into the same tubular support structure in the closed position shown in FIG. 3a and 3b.

The connecting plate 21 may have a substantially C-shape with a central part 22 adapted to be connected to the door Ό by means of a mounting bracket 30, and a pair of end parts 23, 23 ′ mutually facing each other and functionally connected to the box body 11 .

Preferably, the central part 22 and the end parts 23, 23 'can be made in one piece, with the Central part 22, which may consist of a plate element, delimits the first plane π, essentially parallel to the X axis, and the end parts 23, 23 ', which may consist of a pair of plate elements, bound the corresponding second planes π', π, essentially parallel to each other and perpendicular to the first plane π.

Preferably, the mounting bracket 30 may comprise a first plate portion 31 operably attached to the door Ό by means of suitable screws inserted in the openings 32, wherein the first plate portion 31 is integral with the second plate portion 33 formed by the two plate elements 34, 34 ′.

Preferably, the plate elements of the ends 34, 34 'may be substantially perpendicular to the first plate portion 31 and may be operatively connected to the central portion 22 of the connecting plate 21 by means of a support plate 40, whose function will be described in more detail below.

Being in functional connection, the end plate elements 34, 34 'will be between the inner side of the Central part 22 of the connecting plate 21 and the support plate 40.

To ensure connection with the connecting plate 21, the hinge box box body 11 may comprise a pair of end sockets 12, 12 ′ defining an X axis. In a particularly preferred, but not exclusive, hinge box box body 11 may include a longitudinal through hole 13 defining an axis X, adapted to connect the end sockets 12,12 'to each other.

In particular, as shown in FIG. 7b, a rod 24 can be inserted into the through hole 13 with a minimum clearance, the opposite ends of which 25, 25 ′ are interconnected with the end parts 23, 23 ′ of the connecting plate 21 by means of a suitable fixing screw means 26. Thus, the rod 24 can be moved together with a connecting plate 21 between the open and closed position.

Due to this characteristic feature, the hinge loop 1 can serve as a support even for very heavy closing elements Ό without deviations from the set position or changes in its behavior.

- 5 027728

Accordingly, the end portions 23, 23 ′ of the connecting plate 21 may comprise corresponding working surfaces 27, 27 ′ capable of remaining facing the end sockets 12, 12 ′ of the box body 11 of the hinge loop when used.

In accordance with these end slots 12, 12 ', the respective annular housings 14, 14' can be made adapted to accommodate the corresponding anti-friction elements 15,15 ', for example, bearings.

Preferably, the annular housings 14, 14 'and the corresponding bearings 15, 15' can be mutually designed so that the working surfaces 27, 27 'of the connecting plate 21 are engaged with the antifriction bearings 15, 15' and remain at a distance from the box body 11 as shown in FIG. 23. This will allow the movable member 20 to rotate around the X axis with minimal friction, so that the hinge hinge 1 will also be able to support very heavy doors Ό.

In particular, although the inner diameter Όι of the ring housings 14, 14 'can be substantially equal to the outer diameter Ό _{2 of the} antifriction bearings 15, 15', the height of the latter 1 may be slightly greater than the height of the 1 ₁ first, by about a few tenths of a millimeter.

On the other hand, the rod 24 may have a height of 1ι ₃ . slightly exceeding the distance f between the upper surfaces of the antifriction bearings 15, 15 ', so that when one of the working surfaces of the connecting plate 21, for example the upper working surface 27, engages with the corresponding antifriction bearing 15, the other working surface 27' remains at a distance from the corresponding antifriction bearing fifteen'.

Thanks to this characteristic feature, the antifriction effect is maximized. In addition, the hinge loop 1 is bilateral, i.e. it can be used in both positions, i.e. in the position shown in the figures, or in an inverted position, without changing its behavior.

In order to allow the hinge loop to stop at the desired position, at least one of the end parts of the connecting plate 21, for example the lower end part 23 ', may include a protrusion 28', directed along the axis towards the inner side of the same connecting plate 21, while as the hinge loop body 11 may comprise at least one end portion, for example a lower end portion 16 ', which may comprise a corresponding adjustable locking set screw 17'.

Thus, the user will be able to adjust the opening angle of the connecting plate 21, and then the opening angle of the door Ό attached to it.

In fact, at least one protrusion 28 ', rotating together with the connecting plate 21 about the X axis, abuts against at least one locking set screw 17' and stops.

Suitably, at least one locking set screw 17 'may comprise a first end 170' capable of selectively engaging with the protrusion 28 'and a second end 171' used externally by the user to control the movement of the same locking set screw 17 'along the φ direction essentially perpendicular to the first x-axis.

Preferably, at least one locking set screw 17 ′ may be screwed into the hinge loop body 11 in accordance with at least one end portion 16 ′ thereof. Consequently, the user acting on the end 171 ′ tightens and unscrews at least one locking set screw 17 ′ from its socket 160 ′.

In a preferred, but not exclusive embodiment, the end portion 16 ′ of the hinge loop body 11 may comprise a curved slit 18 ′ defining the path of the protrusion 28 ′ as it rotates about the X axis. Suitably, the curved slit 18 ′ can be concentric with respect to the X axis.

Thus, the protrusion 28 'moves inside the curvilinear slit 18' with its angular rotation around the axis X.

Preferably, the through socket 160 'of at least one locking set screw 17' may be formed in accordance with a curved slot 18 '.

In some embodiments, such as the embodiments depicted in FIG. 7a-9b, two locking protrusions 28, 28 'can be suitably provided on both end parts 23, 23' of the connecting plate 21 and adapted to abut against the corresponding locking set screws 17, 17 'located in both end parts 16, 16' body 11 of the hinge loop.

In a particularly preferred, but not exclusive embodiment, both end parts 16, 16 ′ of the hinge loop body 11 may comprise corresponding curved slots 18, 18 ′.

Suitably, in particular as shown in FIG. 9a, the latter may limit an element for guiding and centering the locking protrusions 28, 28 ′ as they rotate about the X axis.

As will be described in more detail below, the same curved slots 18, 18 ′ may further limit an element for guiding and centering the curved cam element 60 in embodiments comprising this element.

- 6 027728

Preferably, the plate portion 33 of the mounting bracket 30 can be movably mounted on the central plate element 22 of the connecting plate 21 to slide along a substantially vertical axis X ′ parallel to a vertical axis X, and along a substantially horizontal axis Ζ, substantially perpendicular to the vertical axis X.

In this regard, the support plate 40 may have a total height slightly less than the distance 62 between the working surfaces 27, 27 'of the end plate elements 23, 23' of the connecting plate 21, so that it can slide vertically inside the central plate element 22 of the connecting plates 21.

The support plate 40 may include a pair of end parts 41, 41 'and a central part 42 protruding outward relative to the latter.

The central portion 42 of the support plate 40 may have a height L ₅ substantially equal to the distance 6 ₃ between the plate elements 34, 34 ′ of the mounting bracket 30, and a thickness of 8 ₁ slightly exceeding the thickness of § ₂ , 8 _{3 of the} latter, so that the mounting bracket 30 has a minimum clearance when placed between the support plate 40 and the inner side of the Central plate element 22 of the connecting plate 21.

Thus, the upper surface 43 of the central protruding portion 42 of the support plate 40 guides the sliding of the mounting bracket along the horizontal axis Ζ.

Alternatively, a pair of guide members 44, 44 ′ may be provided, each of which is inserted into a corresponding hole 45, 45 ′ passing through the end portions 41, 41 ′ of the support plate 40.

Preferably, the height U, b _{7 of the} guide elements 44, 44 'may be less than the height 1c. B ₉ through holes 45, 45 'of the support plate 40, while their length 1 ₁ , 1 ₂ can be essentially equal to the length 1 ₃ , 1 ₄ through holes.

Thus, the side surfaces 46, 46 ′ of the guide elements 44, 44 ′ direct the sliding of the mounting bracket 30 along the vertical axis X ′.

Preferably, a first element for adjusting the position of the mounting bracket 30 along the substantially vertical axis X 'and a second element for adjusting the position of the mounting bracket 30 along the substantially horizontal axis Ζ can be provided, which can be selectively activated by the user to provide independent adjustment the position of the door Ό in the vertical and / or horizontal direction when attaching to the same mounting bracket 30.

In a preferred, but not exclusive embodiment, the first member for adjusting the sliding of the door Ό along the horizontal axis Ζ may comprise a hole 47 passing through the central protruding portion 42 of the support plate 40, a drive element 48, and a first locking screw 50 passing through the plate element 22 of the connecting plate 21 and through the central protruding portion 42 of the support plate 40 for complementary engagement with a socket 50 'containing the opposite thread and located in the drive element 48.

By unscrewing the first locking screw 50, the user can release the drive element 48 to interact with the through hole 42 to adjust the sliding of the mounting bracket 30 along the vertical axis X, for example by rotating around its axis with a suitable wrench. After reaching the desired position, the user can tighten the first screw 50.

In the first embodiment shown, for example, in FIG. 5a-56, the drive element 48 may comprise a plurality of first peripheral teeth 49 of a certain shape engaged with second teeth 49 'of an opposite shape, respectively, to the side walls 47', 47 of the through hole 47.

In a second alternative embodiment, shown for example in FIG. 6a-6c, the drive element 48 may comprise an eccentric element 48 'engaged with the through hole 47.

Suitably, the second element for adjusting the sliding of the door Ό along the vertical axis X ′ may comprise a pair of elongated slots 35, 35 ′ of a certain shape passing through the end plate elements 34, 34 ′ of the mounting bracket 30, and a pair of second locking screws 51, 52 extending through the plate element 22 of the connecting plate 21 and through the elongated slots 35, 35 'for engagement with the respective sockets 51', 52 'of the guide elements 44, 44' containing the opposite thread.

By unscrewing the second locking screws 51, 52, the user can release the end plate elements 34, 34 'of the mounting bracket 30 and elongated slots 35, 35' of the corresponding shape for horizontal movement along the axis направ guided by the upper surface 43 of the central protruding portion 42 of the support plate 40. After to achieve the desired position, the user can tighten the second locking screws 51, 52.

Suitably, shaped elongated slots 35, 35 ′ may have a maximum length of 1 ₅ , 1 ₆ equal to the maximum possible displacement of the mounting bracket 30 along the horizontal axis Ζ.

The hinge loop 1 may have various configurations. For example, it can be completely

- 7 027728 mechanical, such as in the embodiment depicted in FIG. 7a-9b, or may be mechanical with a door closing element from an open position, or may be hydraulic, such as in the embodiments shown in FIGS. 10-22b.

In particular, the hydraulic hinge loop may be a closing hinge loop, such as in the embodiment depicted in FIG. 10-14b, or a hinge loop to control the rotation of the door upon opening, as in the embodiment shown in FIG. 15-18, or when closed, as in the embodiment shown in FIG. 19-22b.

Therefore, one of the end parts of the connecting plate 21, for example the upper end plate 23, can advantageously comprise a generally triangular curved cam element 60, rotating together with the same connecting plate 21 about the X axis. The curved cam element 60 can be attached to the end part 23 removable or non-removable manner.

In this case, the curved slit 18 can guide and center the cam element 60 as it rotates around the X axis.

Conveniently, the hinge-shaped box body 11 may further comprise a working chamber 70 with a bottom wall 71. The working chamber 70 may have an elongated shape to limit a longitudinal axis Υ located at a distance from the first axis X and substantially parallel to it.

The plunger 80 and the elastic element 90, such as a compression spring, can be inserted inside the working chamber 70 for mutual interaction, thereby facilitating sliding along the оси axis between the position close to the bottom wall 71 and the position remote from it.

In this regard, the plunger 80 may include a front surface 81 having a generally rounded shape, capable of contacting a substantially flat working surface 61 of the curved cam element 60, so that the rotation of the latter around the X axis corresponds to the sliding of the plunger 80 along the оси axis and vice versa .

To ensure mutual influence of the plunger 80 on the cam element 60, the elastic element 90 can act on the first to move it back from an approximate position to a distant one. In this regard, the elastic element 90 can be placed in the working chamber 70, so that its position of maximum elongation corresponds to the distant position of the plunger 80, while the position of the minimum elongation corresponds to the approximate position of the latter.

On the other hand, in yet another embodiment, the resilient element can be placed in the working chamber 70, so that its position of maximum elongation corresponds to the approximate position of the plunger 80, while the position of the minimum elongation corresponds to the distant position of the latter. In this case, the plunger 80 and the cam element 60 can be mechanically connected to each other.

Depending on the configuration and / or size of the resilient member 90, it will thus be possible to automatically close the door Ό from the open position or simply return the plunger 80 to a distant position so that it interacts with the cam member 60 when the door is opened or closed.

This action depends on the configuration of the cam element 60 and, in particular, on the inclination of its working surface 61. In fact, depending on the latter, when the door Ό is opened, the plunger 80 can move from a distant position to an approximate position, as in the embodiment shown in FIG. 10-18b, or from an approximate to a distant position, as in the embodiment depicted in FIG. 19-22.

Preferably, the front surface 81 of the plunger 80 can be made of a metal material, for example steel, which can be harder than the metal material of which the working surface 61 of the cam element 60 is made. Thus, the front surface 81 will form a guide channel along the working surface 61 when used .

In a preferred, but not exclusive embodiment, the working chamber may further comprise a working fluid, such as oil, acting on the plunger element 80 to hydraulically counteract its action. In this case, the plunger 80 can divide the working chamber 70 into the first and second variable-volume compartments 72, 73, fluidly connected and adjacent to each other.

A hydraulic circuit 100 may also be provided for the flow of working fluid between the first and second variable volume compartments 72, 73 when the front surface 81 moves from another from a distant or approximate position to its original position.

Preferably, the plunger 80 may include a single-line valve for controlling the flow of fluid between the first and second compartments 72, 73 when the front surface 81 moves from one of the distant or approximate position to another from an approximate or distant position.

Suitably, the valve may comprise a control element, such as a stop 82, sliding in the socket 83 and movable together with the plunger 80. The stop 82 slides along the оси axis to selectively close / open the first inlet / outlet 84 of the socket 83 so as to selectively install / terminate the fluid connection between the first and second compartments 72, 73.

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In particular, the socket 83 may contain, in addition to the first inlet / outlet 84, a second inlet / outlet 85, which may have a flow cross section greater than the flow cross section of the first inlet / outlet 84. Suitably, the dimensions of the socket 83 can be selected in this way to allow the stopper 82 to slide along the оси axis.

The dimensions of the stopper 82, the first inlet / outlet 84 and the second inlet / outlet 85 can be selected so that when the stopper 82 releases the first inlet / outlet 84, the working fluid flows through the second inlet / outlet 85 to create a fluid connection between the first and second departments 72, 73; and when the stopper 82 blocked the first inlet / outlet 84, the working fluid was forced to pass through the circuit 100.

In a preferred, but not exclusive embodiment, the plunger 80 may include a tubular element 86 with a front portion 87 located in the second compartment 73, a rear portion 88 located in the first compartment 72, and a side wall 89 facing the side wall 74 of the working chamber 70.

The front and rear parts 87, 88 of the tubular element 86 may be in fluid communication with each other and with the valve seat 83. In this regard, the tubular element 86 may include a disk-shaped element 88 'located between its rear portion 88 and an elastic element 90, which may include a socket 83, a stopper 82, a first inlet / outlet 84 and a second inlet / outlet 85.

In a preferred, but not exclusive embodiment, the plunger 80 may further comprise a rod 110, the first end 111 of which is connected as a whole to the front part 87 of the tubular element 86 and the second end 112 of which contains the front surface 81.

In particular, the rod 110 may comprise a longitudinal through hole 113 with a first inlet / outlet opening 114 and a pair of second inlet / outlet openings 115, 115 ′.

The rod 110 can be inserted through the front portion 87 of the tubular element 86 so as to create a fluid connection between the hole 114 and the first and second inlet / outlet openings 84, 85 of the valve seat 83 and create a fluid connection between the second inlet / outlet openings 115, 115 ′ and second branch 73.

Thus, a fluid connection is formed between the first and second compartments 72, 73 through the through hole 113 of the rod 110, which can be connected to the tubular element 86 through the pin 116.

Preferably, the hydraulic circuit 100 may be formed inside the hinge-shaped box body 11, outside the working chamber 70, and may include a first inlet / outlet opening 101 in the second compartment 73 and a second and third inlet / outlet openings 102,103 in the first compartment 72.

In a preferred, but not exclusive embodiment, shown, for example, in FIG. 15-22b, the valve may be designed to close when the front surface 81 of the plunger 80 moves from a distant position to an approximate one so as to force the working fluid to pass from the first compartment 72 to the second compartment 73 when entering the hydraulic circuit 100 through the second and the third hole 102, 103 and exit from it through the first hole 101.

In this case, the valve may open when the front surface 81 moves from an approximate position to a distant one, in order to allow the working fluid to pass through it from the second compartment 73 to the first compartment 72. In this regard, the second inlet / outlet opening 85 of the socket can be turned to the first compartment 72, while the first inlet / outlet may be facing the second compartment 73.

In such embodiments, the third hole 103 may remain without fluid communication with the side wall 89 of the tubular member 86 throughout the course of the plunger 80 from a distant position to an approximate position.

Alternatively, the second hole 102 may remain without fluid communication with the side wall 89 of the tubular member 86 during the first initial portion of the stroke of the plunger 80 shown in FIG. 17a and FIG. 21a, and may be fluidly connected to the side wall 89 during the second final portion of said stroke depicted in FIG. 18a and FIG. 22a.

Thus, the door Ό will have the first resistance to the closing / opening movement for the first corner part α _{1 of} its rotation around the X axis corresponding to the first initial part of the stroke of the plunger 80, and the second resistance to the closing / opening movement of the door Ό for the second corner part α _{2 of} its rotation around the X axis corresponding to the second final part of the stroke of the same plunger 80.

Suitably, first and second means 120, 121, such as corresponding screws, may be provided for adjusting the flow cross section of the second and third holes 102,103, respectively.

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Thanks to these characteristic features, the user will be able to independently adjust the first and second resistance to the opening / closing movement of the door Ό.

In such embodiments, the resilient member 90 may be a return spring, i.e. a spring whose size and / or configuration is sufficient to move the plunger from an approximate position to a distant one, but not enough to ensure that door автоматического is automatically closed from an open position.

The hinge hinge is designed to be a control hinge hinge for controlling the rotational movement of the door Ό.

In particular, in embodiments where the cam member 60 is configured such that when the door Ό is opened, the plunger moves from an approximate position to a distant one, as in the embodiments shown in FIG. 15-18B, the hinge hinge 1 is made in such a way as to control the rotational movement of the door Ό when it is opened.

On the other hand, in embodiments in which the cam element 60 is configured such that when the door Ό is opened, the plunger moves from an approximate position to a distant one, as in the embodiments shown in FIG. 19-22B, hinge hinge 1 is made in such a way as to control the rotational movement of the door Ό when it is closed.

In an alternative embodiment, shown for example in FIG. 10-14B, said valve may be designed to open when the front surface 81 of the plunger 80 moves from a distant position to an approximate position, in order to allow the working fluid to pass from the first compartment 72 to the second compartment 73, and to close when it moves from the approximate remote position in order to force the working fluid to pass from the second compartment 73 to the first compartment 72 when entering the hydraulic circuit 100 through the first hole 101 and exiting from it through the second and third holes 102, 103.

In this regard, the second inlet / outlet opening 85 of the socket 83 may be facing the second compartment 73, while the first inlet / outlet 84 may be facing the first compartment 72.

In this embodiment, the third hole 103 of the circuit 100 can remain without fluid communication with the side wall 89 of the tubular element 86 throughout the course of the plunger 80 from an approximate position to a distant position, so that the door Ό has a third predetermined closing speed.

On the other hand, the second hole 102 of the circuit 100 can be fluidly connected to the side wall 89 of the tubular element 86 during the first initial part of the stroke of the plunger 80, shown, for example, in FIG. 14a, so that door Ό has a predetermined closing speed.

The second opening 102 may remain without fluid communication with the side wall 89 of the tubular element 86 during the second final part of the stroke of the plunger 80, shown, for example, in FIG. 13a in order to bring the door Ό to the closed position.

Preferably, third means 122 may be provided for adjusting the flow cross section of the second hole 102, for example a suitable screw, so as to allow the user to adjust the force by which the door Ό is brought into the closed position.

Additionally, fourth means 123 may be provided for adjusting the flow cross section of the third hole 103 so as to allow the user to adjust the closing speed of the door Ό.

In this embodiment, the cam member 60 may be configured such that when the door Ό is opened, the plunger 80 moves from an approximate position to a distant one.

Suitably, the elastic member 90 may be a drive spring, i.e. a spring, the size and / or configuration of which is sufficient to ensure that the door Ό automatically closes from the open position. The hinge hinge made in this way will be a closing hinge hinge for automatically closing the door Ό from the open position.

From the above description it is seen that the invention fulfills its intended objectives.

The invention admits many changes and variations. All parts may be replaced by other technically equivalent elements and the materials may vary depending on the needs without exceeding the scope of the invention limited by the attached claims.

Claims (11)

CLAIM 1. Concealed hinge hinge for rotational movement of the door (Ό), in particular a reinforced door attached to a tubular support structure (P, CP), comprising a rear counter frame (CP) attached to a wall (XV) or similar support, and a front frame ( P) attached to a counter frame (CP) comprising a fixed element (10) and a movable element (20) rotatably attached to the fixed element (10) for rotation about a first longitudinal axis (X) between the open position and the closed position of the door ( Ό); wherein said fixed element (10) contains a box-shaped body (11) for concealed location inside a tubular support structure (P, CP), while said movable element (20) contains a connecting plate for attachment to a door (Ό), capable of exiting the tubular support structure (P, CP) in the indicated open position of the door (Ό) and enter the tubular support structure (P, CP) in the specified closed position of the door (O); wherein said box-shaped body (11) of the fixed element of the hinge loop contains at least one working chamber (70), the longitudinal axis (Υ) of which is located at a distance from the specified first axis (X) and essentially parallel to it, wherein said at least one working chamber (70) comprises a lower wall (71), a plunger (80) sliding along said second longitudinal axis (Υ), and an elastic element (90) operably connected to said plunger (80), containing a front surface (81); the hinge loop also contains a cam element (60) rotating around the first axis (X), facing the front surface (81) of the plunger (80) and interacting with it, so that the rotation of the cam element (60) around the first axis (X) corresponds sliding the plunger (80) along the second axis (Υ), and vice versa, while the specified plunger (80) is arranged to slide along the specified second longitudinal axis (Υ) between the position close to the specified bottom wall (71) and the position remote from it, while the specified elastic element (90) Get inside said plunger (80) for the return of said approximate position to said remote location; wherein said working chamber (70) further comprises a working fluid acting on said plunger (80) to hydraulically counteract its movement, while said plunger (80) divides said working chamber (70) into at least one first and one second compartment (72, 73), configured to change their volumes, in fluid communication with each other and preferably adjacent to each other, wherein said elastic element (90) is located in said first compartment (72), wherein said nshey least one first compartment (72) has a maximum volume, respectively at least one second compartment (73) has a minimum volume when the plunger (80) is located at a position distant from said bottom wall (71) and vice versa, respectively; wherein said plunger (80) also contains a single-line valve (82) for controlling the flow of the working fluid between the indicated at least one first and one second compartments (72, 73) when the said plunger (80) moves from one of these remote or approximate positions to another appropriately specified approximate or distant position, wherein a hydraulic circuit (100) is provided for the flow of the working fluid between the at least one first and one second compartments (72, 73) when said unzhera (80); the specified plunger (80) also contains a tubular element (86), the front part (87) of which is located in the specified second compartment (73), and the rear part (88) is located in the specified first compartment (72) and the side wall (89) of which is facing to a side wall (74) of said working chamber (70), wherein said hydraulic circuit (100) is located inside said box-shaped body (11) of the fixed element (10) of the hinge loop, surrounding said at least one working chamber (70), and contains at least one first inlet / outlet (1 01) in said second compartment (73) and a second and third inlet / outlet (102, 103) in said first compartment (72), wherein said second hole (102) is located upstream of said third hole (103). 2. The hinge loop according to claim 1, characterized in that said valve (82) is configured to open when said plunger (80) moves from said lower wall (71) to allow the flow of working fluid from the second compartment (73) to the first compartment (72) and closing when the specified plunger (80) moves to the indicated lower wall (71) to ensure that the working fluid flows from the first compartment (72) into the second compartment (73), and when the specified plunger (80) enters the specified hydraulic circuit ( 100) working fluid flows through the decree the second and third holes (102, 103) and when the specified plunger (80) leaves it, the working fluid flows through the specified first hole (101). 3. The hinge loop according to claim 2, characterized in that said third hole (103) is not in fluid communication with the side wall (89) of said tubular element (86) throughout the course of said plunger element (80) from said distant position in the specified approximate position, while the specified second hole (102) remains out of fluid communication with the side wall (89) of the specified tubular element (86) during the first initial part of the specified stroke and is in fluid communication with the side wall (89) of the specified tubular th element (86) during a second final part of said stroke such that said door (Ό) has a first resistance to motion when closing / opening for the first angular portion (n ₃₎ of the trajectory of rotation about said first axis (X), corresponding to said first the initial part of the stroke of the specified plunger (80), and the second resistance to movement when closing / opening the door (Ό) for the second corner part (α ₂ ) of the trajectory of its rotation around the specified first axis (X) corresponding to the second final part of the specified - 11 027728 moves. 4. The hinge loop according to claim 3, characterized in that it contains first and second means (120, 121) for regulating the cross-sectional area of the specified second and specified third holes (102, 103), respectively, to enable the user to independently adjust the specified first and / or the indicated second resistance to movement when closing / opening the door (Ό). 5. The hinge according to claim 4, characterized in that said elastic element (90) is a return spring, so that the hinge loop is a control hinge loop for controlling the rotational movement of the door (O). 6. The hinge loop according to claim 5, characterized in that said cam element (60) is designed so that when the door (Ό) is opened, said plunger (80) moves from said distant position to said approximate position, wherein said first and the second regulatory elements (120, 121) are able to regulate the first and second resistance to movement of the door (Ό) along the indicated first and second angular parts (a _b α ₂ ) of the trajectories of rotation when it is opened. 7. The hinge loop according to claim 6, characterized in that said cam element (60) is made in such a way that when the door (Ό) is opened, said plunger (80) moves from the indicated approximate position to the specified remote position, wherein the first and the second regulatory elements (120, 121) are able to regulate the first and second resistance to movement of the door (Ό) along the indicated first and second angular parts (αμ α ₂ ) of the trajectories of rotation when it is closed. 8. The hinge loop according to claim 1, characterized in that said valve (82) is arranged to open when said plunger (80) is moved to said lower wall (71) to allow the flow of working fluid from the first compartment (72) to the second compartment (73) and closing when moving the specified plunger (80) from the specified lower wall (71) to ensure that the working fluid flows from the second compartment (73) into the first compartment (72), and when the specified plunger (80) enters the specified hydraulic circuit ( 100) working fluid flows through said first opening (101), and when the output of said plunger (80) of it the working fluid flows through said second and third openings (102, 103). 9. Hinge loop according to claim 8, characterized in that said third hole (103) is not in fluid communication with the side wall (89) of said tubular element (86) throughout the entire course of said plunger (80) from said approximate position in the specified remote position, so that the specified door (Ό) moves with a predetermined speed of opening / closing, while the specified second hole (102) is in fluid communication with the side wall (89) of the specified tubular element (86) during the first initial part of the specified moveand is not in fluid communication with the side wall (89) of said tubular element (86) during the second final part of said move to bring the door (Ό) to the open / closed position. 10. The hinge according to claim 9, characterized in that it contains third means (122) for regulating the cross-sectional area of the specified second hole (102) to enable it to adjust the force by which the door (Ό) is brought into the open / closed position, additionally, fourth means (123) are provided for adjusting the cross-sectional area of said third hole (103) to enable the door opening / closing speed (Ό) to be controlled. 11. The hinge loop of claim 10, wherein said cam element (60) is configured such that when the door (Ό) is opened, said plunger (80) moves from said distant position to said approximate position, wherein said elastic member (90) is a drive spring, so that the hinge is a hinge for automatically closing the door (Ό) from the open position, while said third and fourth control means (122, 123) are able to control the driving force doors (Ό) to the closed position and its speed when closing.