ITUB20150886A1 - HINGE WITH REDUCED DIMENSIONS - Google Patents

Description

HINGE WITH REDUCED DIMENSIONS

DESCRIPTION

Field of application

The present invention? generally applicable to the technical sector of hinges for doors, shutters or the like, and has particularly as its object a hinge with reduced dimensions.

State of the art

As is known, hinges generally comprise a movable element, usually fixed to a door, a leaf or the like, hinged on a fixed element, usually fixed to the supporting frame of the latter.

In particular, the hinges usually used in cold rooms or glass doors are bulky, unsightly and not very functional.

From documents US7305797, US2004 / 206007 and EP1997994 hinges are known in which the action of the closing means which guarantee the return of the door in the closed position? undisputed. Consequently, there? the risk that the sash strongly impacts against the support frame, damaging it.

From documents EP0407150 and FR2320409 door closers are known which include hydraulic damping means for opposing the action of the closing means. These known devices have extremely large dimensions and, consequently, must necessarily be mounted on the floor.

The installation of such devices, therefore, necessarily requires expensive and difficult floor breaking works, which must be carried out by specialized personnel.

AND? it is evident that this door closer, therefore, is not suitable for mounting in the stationary support structure or in the door of cold storage rooms.

From the German patent DE3641214? notes an automatic closing device for window sashes adapted to be mounted externally to the same.

Presentation of the invention

Purpose of the present invention? that of at least partially overcoming the drawbacks encountered above, by providing a hinge having characteristics of high functionality, simplicity? constructive and low cost.

Another purpose of the invention? make available a hinge with extremely small dimensions.

Another purpose of the invention? provide a hinge that can be interposed between the door and the frame of the stationary support structure of a cold room.

Another purpose of the invention? provide a hinge that guarantees automatic closing of the door from the open door position.

Another purpose of the invention? provide a hinge that guarantees the controlled movement of the door to which? constrained, both in the opening and closing phases.

Another purpose of the invention? provide a hinge that is able to support even very heavy doors and frames, without changing the behavior and without the need? of adjustments.

Another purpose of the invention? provide a hinge with a minimum number of constituent parts.

Another purpose of the invention? provide a hinge capable of maintaining the exact closing position over time.

Another purpose of the invention? make available an extremely safe hinge, which does not resist closing if tugged.

Another purpose of the invention? provide a hinge that is extremely easy to install.

Those purposes, as well as? others who will appear more? clearly in the following, they are reached by a hinge in accordance with what is described, illustrated and / or claimed herein.

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

Brief description of the drawings

Further characteristics and advantages of the invention will become more evident in the light of the detailed description of some preferred but not exclusive embodiments of a hinge 1, illustrated by way of non-limiting example with the aid of the accompanying drawing tables in which:

FIG. 1? an exploded axonometric view of a first embodiment of the hinge 1;

FIG. 2a? an axonometric view of the first embodiment of the hinge 1 of FIG.1 before the insertion of the hinge body 10 into the casing 100;

FIG. 2b? an isometric view of the first embodiment of the assembled hinge 1 of FIG. 1;

FIGS. 3a and 3b are respectively lateral and bottom axonometric views of the first embodiment of the hinge 1 of FIG. 1 retractable inserted in a tubular frame S from which the dragging joint 231 protrudes;

FIG. 4a? a further isometric view of the first embodiment of the hinge 1 of FIG. 1 retractable inserted in a tubular frame S from which the dragging joint 231 protrudes, with some enlarged details in FIG. 4b;

Figures 5a and 5b are axial and radial section views with respect to the pin 20 of the first embodiment of the hinge 1 of Figure 1 in the position of door A closed;

FIGS. 6a and 6b are enlarged views of some details of the first embodiment of the hinge 1 of FIG.1 in the closed and open position of door A;

Figures 7a and 7b are axial and radial sectional views with respect to the pin 20 of the first embodiment of the hinge 1 of Figure 1 in the position of door A open at 90 °;

Figures 8a and 8b are axial and radial sectional views with respect to the pin 20 of the first embodiment of the hinge 1 of Figure 1 in the position of door A open beyond 90 °;

FIG. 9? an exploded axonometric view of a second embodiment of the hinge 1;

Figures 10 and 11 are axial and radial sectional views with respect to the pin 20 of the embodiment of the hinge 1 of FIG. 9 in the position of door A closed;

FIGS. 12a and 12b are views in axial and radial section with respect to the pin 20 of the embodiment of the hinge 1 of FIG. 9 in the position of door A open at 90 °;

FIGS. 13a and 13b are views in axial and radial section with respect to the pin 20 of the embodiment of the hinge 1 of FIG. 9 in the position of door A open beyond 90 °;

FIG. 14? an exploded axonometric view of another embodiment of the hinge 1;

FIGS. from 15a to 15d are axonometric views of some phases of the assembly of the pin 20 in the hinge body 10 of the embodiment of the hinge 1 of FIG. 14; FIGS. 16a and 16b are views in axial and radial section with respect to the pin 20 of the embodiment of the hinge 1 of FIG. 14 in the position of door A closed;

FIGS. 17a and 17b are axial and radial section views with respect to the pin 20 of the embodiment of the hinge 1 of FIG. 14 in the position of door A open at 90 °;

FIGS. 18a and 18b are axial and radial section views with respect to the pin 20 of the embodiment of the hinge 1 of FIG. 14 in the position of door A open beyond 90 °;

FIG. 19? an isometric view of the embodiment of the assembled hinge 1 of FIG. 14;

FIG. 20? a partially exploded schematic view of the embodiment of the hinge 1 of FIG. 14 mounted on a door A;

FIGS. 21a and 21b are respectively front and rear schematic views of the embodiment of the hinge 1 of FIG. 14 mounted on the door A;

FIG. 22? an exploded axonometric view of a further embodiment of the hinge 1;

FIGS. from 23a to 23d and 23f are axonometric views of some phases of the assembly of the slider assembly 31 - rod 16 - spring 40 in the working chamber 11 of the hinge body 10 of the embodiment of the hinge 1 of FIG. 22, with in FIGS. 23e and 23g respective views in radial section with respect to the pin 20 of Figures 23d and 23f;

FIGS. 24a, 24b and 24c are lateral and axial and radial sectional views respectively with respect to the pin 20 of the embodiment of the hinge 1 of FIG. 22 in leaf A closed position;

Figures 25a and 25b are lateral and radial section views respectively with respect to the pin 20 of the embodiment of the hinge 1 of FIG. 22 in the position of door A open at 90 °;

FIG. 25c? a sectional view of some details of a further embodiment of the hinge 1;

FIG. 26? an exploded axonometric view of a further embodiment of the hinge 1;

FIGS. 27a and 27b are axial sectional views with respect to the pin 20 of the embodiment of the hinge 1 of FIG. 26 respectively in the position of leaf A closed and open to 90 °;

FIGS. 28, 29a and 29b? a schematic view of the embodiment of the hinge 1 of FIG. 26 mounted on a door A.

Detailed description of a preferred embodiment With reference to the cited figures, the hinge according to the invention, globally indicated with the number 1, will present? reduced dimensions, and it will be? therefore advantageously it can be used in applications where the space for inserting the hinge? limited or where for aesthetic reasons? it is advisable to use a hinge with minimum dimensions.

For example, zipper 1 will be able to be applicable to cold rooms, or be integrated into the tubular frame of the same. In a further example, the hinge 1 could? be applicable to glass doors, such as those of a showcase or display cabinet.

In general, the hinge 1? adapted to rotatably couple a stationary support structure, for example a tubular frame S, and a closing element, for example a door A, rotatably movable between an opening position, illustrated for example in FIGS. 7a and 8b, and a closure, illustrated for example in FIGS. 5a and 5b, around an axis of rotation X.

It is understood that even if in the following we will refer? to frame S and door A, hinge 1? applicable to any stationary support structure and any closing element without thereby departing from the scope of protection of the attached claims.

Conveniently, the hinge 1 can? include a hinge body 10 of substantially plate-like shape defining a plane ?? and a pin 20 defining the axis of rotation X.

In a preferred but not exclusive embodiment, the hinge body 10 will be able to be anchored to the door A and the pin 20 to the frame S. In this case, the fixed element will include? the pin 20, while the mobile element can? include zipper body 10.

Appropriately, once the zipper body 10? anchored to door A, the top ?? defined by the first potr? be coincident or parallel to the plane? defined by the second.

Conversely, the hinge body 10 will be able to be anchored to the frame S, while the pin 20 can? be anchored to leaf A, without thereby departing from the scope of protection of the attached claims. In that case, the fixed element will include? the hinge body 10, while the movable element can? include pin 20.

Advantageously, the hinge body 10 and the pin 20 can be mutually coupled to rotate around the X axis between the open and closed leaf A positions.

Conveniently, the pin 20 will be able to? include a cam element 21 integral with it interacting with a piston element 30 sliding along an axis Y.

The Y axis of sliding of the piston element 30 will be able to be substantially perpendicular to the X axis. Furthermore, the X axis of rotation of the door A can? be substantially parallel to the plane ?? or lying on it.

In any case, the piston element 30, which can? include, respectively consisting of, a cursor 31, may? sliding in a working chamber 11 inside the hinge body 10 between a retracted limit stop position proximal to the bottom wall 12 of the working chamber 11, illustrated for example in Figures 7a and 7b, and an end stop position extended therefrom distal, illustrated for example in Figures 5a and 5b.

Conveniently, these retracted and extended end-of-stroke positions can be any, and not necessarily correspond to the maximum distal and / or proximal position that the post element 30 can? assume.

In a preferred but not exclusive form of the invention, the working chamber 11 will be able to include elastic contrast means acting on the slider 31 to move it along the proximal and distal positions.

In a preferred but not exclusive embodiment, the elastic contrast means may include, or may consist of, a spiral spring 40 of predetermined diameter.

Depending on the configuration, the elastic contrasting means 40 may be pushing or restoring.

In the case of elastic means of thrust contrast, the strength of the same will be? such as to automatically recall leaf A from the open or closed position it reaches when the cursor 31? in a proximal position towards the other of the open or closed position which it reaches when the cursor 31? distally.

In this case, depending on whether the position reached by leaf A when the cursor 31? in the proximal position? open or closed, zipper 1 will be? an opening hinge or a closing hinge or door closer hinge.

In the case of elastic means of restoring contrast, however, the strength of the same will be? such as not to be able to push the leaf A from the open or closed position which it reaches when the slider 31? in a proximal position towards the other of the open or closed position which it reaches when the cursor 31? distally. In this case, the door A will have to? be moved manually or in any case with actuator means external to the hinge 1, for example a motor.

The strength of the elastic means of restoration, however, will be? such as to return the cursor 31 from the proximal to the distal position.

In this case, depending on whether the position reached by leaf A when the cursor 31? in the proximal position? open or closed, zipper 1 will be? a control hinge for opening or closing.

AND? evident that the closing or opening hinge will do? also from control in opening or closing, while not? the opposite is true.

It is understood that even if in the attached figures? illustrated a closure hinge 1 the same can? be a closing or opening hinge, cos? as an opening or closing control hinge without thereby departing from the scope of protection of the attached claims.

In a preferred but not exclusive embodiment, the working chamber 11 will be able to furthermore include a rod 16 defining the axis Y. In this case, the elastic contrast means may include, respectively, consist of a spiral spring 40 fitted on the rod 16, what to do? by guide for the same.

Eventually, the spring 40 will be able to be guided by the side walls of the working chamber 11 during its sliding along the Y axis, with or without the guide rod 16.

Preferably, the elastic contrast means may consist of a single spiral spring 40, which may be formed by a single spiral spring 40. be a push or reset spring. In other words, the spiral spring 40 will be able to? be the only elastic means of contrast of the hinge.

Once the coil spring 40? fit on the rod 16, the same spring 40 will remain? interposed between the bottom wall 12 of the chamber 11 and the rear face 33 of the slider 31, what to do? from the stop face for the same spring 40.

The hinge 1 can? have very limited vertical and horizontal dimensions. The spring 40 will be able to? have an external diameter? e equal to or slightly less than the thickness h of the hinge body 10.

Conveniently, this thickness h will be able to be substantially equal to or slightly higher than that of the slider 31. Indicatively, this thickness h could? be less than 30 mm, and preferably less than 25 mm and even more? preferably less than 20 mm.

The spring 40, moreover, can? have an internal diameter substantially equal to or slightly greater than the diameter of the support rod 16 on which it is fit.

Advantageously, the slider 31 will be able to comprising an axial blind hole 35 suitable for accommodating the rod 16, so that the former slides along the Y axis with respect to the latter between the distal and proximal positions.

Pi? in particular, the auction 16 will be able to? understand a first extremity? 17? operatively coupled with the bottom wall 12 of the chamber 11, for example by means of screw means 18, and a second end? 17 ?? inserted in the axial blind hole 35 to remain facing the bottom wall 36 of the latter.

Thanks to this configuration, the hinge 1 will result? extremely simple and quick to assemble. Once the spring 40 has been fitted onto the rod 16 and the latter inserted into the axial blind hole 35 of the slider 31, in fact, it will suffice. insert this assembly into the working chamber 11, screw the rod 16 to the bottom wall 12 by means of the screw means 18 and subsequently insert the cam element 21 into the hinge body 10.

In a preferred but not exclusive embodiment, the screw means 18 may be directly screwable to the rod 16 by means of a plate 18? of stop of the spring 40. Ci? simplifies the assembly of the hinge as much as possible. Once the spring 40 has been fitted onto the rod 16, in fact, the spring 40 itself will come out. blocked by plate 18? and this together will come? inserted from the top into chamber 11.

Advantageously, the slider 31 will be able to be basically plate-like to define a plan ??? substantially coinciding with the plan ?? defined by the hinge body 10.

Conveniently, the cursor 31 will be able to? be guided by the walls of the working chamber 11 during its sliding along the Y axis.

Preferably, the slider 31 will be able to have a substantially parallelepiped shape with the operative face 32 facing the front wall 13 of the working chamber 11, the rear face 33 facing the bottom wall 12 of the chamber 11 and lateral faces 34?, 34 ?? facing and preferably in contact with the side walls 14 ?, 14 ?? of the same chamber 11. In this way, the latter will act as a guide for the cursor 31.

To contain the costs of the hinge, the slider 31 will be able to? include an insert 31? to which the operative face 32 belongs. be made of a first metallic material, for example aluminum, or polymeric, while the insert 31 'will be able to be made of a second metal material pi? hard of the former, for example steel. In doing so, it will be? it is possible to make only the part actually in contact with the cam element 21 in material? hard? and more? expensive, while the remainder of the cursor 31 will be able? be made of material pi? economic.

Conveniently, moreover, the working chamber 11 can? also present a pair of shaped facing walls 140 ?, 140 ?? interacting with a respective pair of opposite shaped walls 340 ?, 340 ?? cursor 31.

Appropriately, the walls facing 140 ?, 140 ?? may be defined by the internal surface 101 of a box-like shell 100 of the hinge 1, the function of which will come? better clarified more? come on. Preferably, on the box-like shell 100 it will be possible to a pair of carters 82, 83 with an aesthetic and / or protective function must be affixed.

Preferably, the shaped facing walls 140 ?, 140 ?? they may have a flat shape, like the opposite walls 340 ?, 340 ??, and may preferably be in mutual contact with the latter so as to guide them during the sliding of the cursor 31 along the Y axis.

In a preferred but not exclusive embodiment, the walls 14 ?, 14 ?? and 34 ?, 34 ?? could they be substantially parallel to each other, like the walls 140 ?, 140 ?? and 340?, 340 ??. Preferably, moreover, the walls 14 ?, 14 ?? and 34 ?, 34 ?? could they be substantially perpendicular to the plane ?? defined by the hinge body 10, while the walls 140 ?, 140 ?? and 340 ?, 340 ?? could they be substantially parallel to the plane ?? defined by the hinge body 10.

In a preferred but not exclusive embodiment, illustrated for example in FIGS. from 1 to 18b, the cam element 21 of the pin 20 will be able to have a substantially parallelepiped shape with a first surface 23 capable of coming into contact with the operating face 32 of the slider 31 when the same? in a distal position and a second surface 24 capable of coming into contact with the operative face 32 of the slider 31 when the same? proximally.

Advantageously, both the two surfaces 23 and 24 and the operative face 32 can be substantially flat or slightly curved.

The angle between the two surfaces 23 and 24 can? be any, and will determine? the opening angle of door A.

Conveniently, the two surfaces 23 and 24 can be substantially perpendicular to each other. If so, when the cursor 31? in the proximal position the first and second surfaces 23 and 24 can be respectively substantially perpendicular and parallel to the operative face 32, while when the slider 31? in the distal position the first and second surfaces 23 and 24 can be respectively substantially parallel and perpendicular to the same operative face 32.

Preferably, the second surface 24 of the cam element 21 will be able to including a damping portion 25 capable of interacting with the slider 31 to slightly compress the spiral spring 40 from the position of maximum compression in case the user further rotates the glass door to open it.

In this way, the coil spring 40 will cushion? the additional rotational movement imparted by the user, preventing him from damaging the hinge and / or the glass door.

Conveniently, the cushioning portion 25 will be able to be interposed between the second surface 24 and a third surface 26 substantially perpendicular thereto and substantially parallel to the first surface 23.

To block the rotation of door A, hinge 1 can? furthermore include an abutment portion adapted to come into contact with the slider 31 when the user further rotates the door A itself, as particularly illustrated for example in Figures 8a and 8b.

Conveniently, this portion of the bar can? be defined by the portions 110 ?, 110 ?? of the hinge body 10.

On the other hand, I can? a tubular element 111 fitted on the rod 16 to remain interposed between the latter and the spiral spring 40, which has a length such as to impact against the rear face 33 of the slider 31, be provided.

In order to minimize the overall dimensions of the hinge 1, the cam element 21 will be able to have a width L such that when the cursor 31? in the distal position the same cam element 21? oriented in such a way as to occupy a major portion of the thickness h of the hinge body 10 and that when the slider 31? in the proximal position the cam element 21? substantially rotated 90? to occupy a reduced portion of the thickness S of the hinge body 10.

The majority portion occupied by the cam element 21 when the slider 31? in the distal position can? have a width L, which naturally coincides with that of the cam element 21, such that when the pin 20 rotates around the X axis, the same cam element 21 substantially occupies the entire thickness S of the hinge body 10. In other words, the edges of the cam element 21, for example the damping portion 25, will pass very close to the side walls 140 ', 140' ', until they touch them.

In this way it will be? It is possible to make the most of the little space available for the rotation of the pin 20.

In order to allow the insertion of the pin 20 into the hinge body 10, the latter can? include an elongated loop through 70, which can? be sized so as to allow the passage of the pin 20 only when the cam element 21? substantially rotated 90 ?.

On the other hand, once the pin 20? been inserted in the working chamber 11, the cam element 21 will be able to be rotated into the position in which it occupies the majority portion of the thickness S of the hinge body 10.

In this position, the cam element 21 will be able to be susceptible to impact against the hinge body 10, cos? that mutual unthreading is avoided.

On the other hand, as illustrated for example in FIG. 1, the hinge body 10 will be able to include two loops 70, 70 '. Such an embodiment? pi? simple to make, since? it only requires a drilling with a vertical drill and a punching with a square punch for the slot 70. Also in this case the pin 20 will be able? be inserted as seen above.

Once inserted in the hinge body 10, the pin 20 will present itself. an operative portion which coincides with the cam element 21 inside the working chamber 11 and a fixing portion 230 protruding from the hinge body 10.

In a further preferred but not exclusive embodiment, illustrated for example in FIGS. from 22 to 26, the cam element 21 can? be carried out in accordance with the teachings of the international application PCT / IB2007 / 051663, to which we refer for consultation.

Given the limited space available, hinge 1 can? be devoid of classic thrust bearings.

However, alternative anti-friction and thrust bearing means may be provided which are specially configured to perform their function in the very limited space available.

In particular, these anti-friction and thrust-bearing means can be positioned in correspondence with the anchoring areas 210, 200 of the pin 20 to the hinge body 10, which can remain facing the through slot 70 'and the seat 70. In the embodiment with two buttonholes, the latter coincide? with the other buttonhole 70.

Conveniently, the distance d between the first and the second anchoring zone 200, 210 could? be substantially equal to the height of the cam element 21. In this way, the vertical dimensions of the pin 20 will also be minimized.

In a preferred but not exclusive embodiment, the hinge body 10 will be able to include a first and a second annular element 250, 260 inserted in the seat 70 and in the slot 70 'to come into contact with the first and second anchoring areas 200, 210 of the pin 20.

Pi? in particular, the first and second annular elements 250, 260 include respective internal surfaces 251, 261 intended to respectively come into contact with the first and second anchoring regions 200, 210 of the pin 20.

In this way, the latter will be axially and / or radially blocked, cos? to counteract the thrust of the spiral spring 40 and / or to avoid misalignment.

Conveniently, can the first and second annular elements 250, 260 be inserted into the seat 70 and into the slot 70? in a removable way.

Pi? in particular, the first and second removable annular elements 250, 260 may include respective external surfaces 252, 262 intended to come into contact with the internal surfaces 71, 71? seat 70 and slot 70 ?.

In a preferred but not exclusive embodiment, the annular element 250 will be able to include a bottom wall 253 substantially perpendicular to the plane ??. Such a back wall 253 can? be monolithic with the annular element 250, as illustrated for example in FIG.9, or separable from it, as illustrated for example in FIG.1.

The anchoring area 200 of the pin 20 will be able to include an anti-friction element in contact with the bottom wall 253, which can be be defined by a small ball 254 having a curved surface 255 in contact both with the pin 20 and with the bottom wall 253.

On the other hand, the anchorage zone 200 will be able to? include the curved surface in contact with the back wall 253.

Conveniently, the first and second annular elements 250, 260 may include further anti-friction elements 320 interposed between the respective external surfaces 252, 262 and the internal surfaces 71, 71? seat 70 and slot 70 ?.

For example, these anti-friction elements 320 may be respective series of cylindrical rollers. Thanks to this configuration, sar? possible to effectively avoid the misalignment of leaf A.

Pi? in particular, as illustrated in FIG. 25c, at least one of the annular elements, for example the annular element 250, will be able to include one or more? anti-friction elements 320 interposed between its internal surface 251 and the respective anchoring area 200 of the pin 20 and in contact with them.

In a preferred but not exclusive embodiment, illustrated for example in FIGS. from 22 to 25c, the hinge body 10 can? include a pair of pins 300, 310 inserted in respective housings 10 '' ', 10' '' 'transversal to the top ?? of the same hinge body 10 to engage in a peripheral annular groove 215 of the anchoring zone 210 of the pin 20.

In this way, the annular element 250 and the pins 300, 310 will cooperate with each other to axially and / or radially lock the pin 20, counteracting the thrust of the spiral spring 40 and / or avoiding its misalignment.

The hinge 1 can? be fully assembled without screws. There? it simplifies assembly as much as possible, as well as containing costs and dimensions.

For this purpose, the hinge body 10 with all the components inserted in the working chamber 11 will be able to be coupled with a box-like shell 100 so that the internal surface 101 of the latter remains in contact with the external surface 10? of the hinge body 10.

The box-like shell 100 will be able to? cooperate with the inner surface 10 ?? of the hinge body 10 to define the working chamber 11.

In particular, the hinge body 10 will be able to comprise the first pair of shaped facing walls 14 ?, 14 ??, while the shell 100 can? include both shaped facing walls 140 ?, 140 ?? or just one of them.

Advantageously, in order to contain the costs of the hinge 1, the hinge body 10 can? be made of polymeric material, while the shell 100 can? be made of metal material.

In a preferred but not exclusive embodiment, illustrated for example in FIGS. 26 - 29b, the shell 100 will be able to be opened laterally to allow lateral insertion of the hinge body 10. In this case, the wall 140? belong to the shell 100, while the wall 140 ?? belong to the hinge body 10.

In another embodiment, illustrated for example in FIGS. from 1 to 25b, the shell 100 can? be an elongated box-like body in which the hinge body 10 will be able to be smoothly insertable. In that case, both walls 140 ?, 140 '' will belong to shell 100.

In any case, fixing means may be provided for mutually locking the hinge body 10 and the shell 100 in the operative position. have a locking tab 102 or teeth that snap into the hinge body 10.

The hinge 1 can? be of the mechanical type, as illustrated for example in FIG. 14, or include hydraulic damping means, such as illustrated in FIG. 1, acting on the piston element 30 to hydraulically dampen its sliding along the Y axis.

In turn, the mechanical hinge 1 can? include the rod 16, as for example illustrated in FIG.1, or be without it.

Is it obvious that the mechanical hinge? without means of hydraulic damping, while the hydraulic hinge can? include hydraulic damping means.

Conveniently, these hydraulic damping means can be contained entirely inside the slider 31, so that the spiral spring 40 and the pin 20 are not immersed in an oil bath.

Conveniently, the hydraulic damping means may include, or may be constituted by, a working fluid, for example oil, entirely contained in a hydraulic circuit 50 inside the slider 31. For this purpose, the hydraulic circuit 50 may? include blind hole 35.

There? it simplifies as much as possible the structure of the hinge 1, minimizing its costs. All the hydraulics of the hinge, in fact, will be? entirely contained in the slider 31, the remaining parts remaining dry and therefore being much more? simple to create and manage.

Appropriately, the second end? 17 ?? of the auction 16 potr? divide the blind hole 35 into a first and a second variable volume compartment 51 ?, 51 ?? fluidly communicating and adjacent to each other.

For this purpose, the second extremity? 17 ?? of the auction 16 potr? include a cylindrical separating element 60 of the variable volume compartments 51 ?, 51 ??.

In a preferred but not exclusive embodiment, illustrated for example in FIG.

1, the cylindrical separating element 60 will be able to be an open cylinder to be coupled to the second end? 17 ?? auction 16.

The element of separation 60 potr? including an inner chamber 65 with a bottom wall 19?, a side wall 63 and a front wall 61.

This last one will be able to have a front surface 62? facing the bottom wall 36 of the blind hole 35 and a rear surface 62 ?? facing the back wall 19? of an axial blind hole 19 made at the second end? 17 ?? auction 16.

Conveniently, the cylindrical separating element 60 will be able to have the cylindrical wall 63 interposed between the side wall 19 ?? of the second end? 17 ?? of the rod 16 and the side wall 37 of the blind hole 35 of the slider to act as a spacer between them.

Advantageously, the first compartment 51? I can? be defined by the bottom wall 36 of the axial blind hole 35, by the side wall 37 of the same and by the front surface 62? of the front wall 61, while the second compartment 51 ?? I can? be defined by the axial blind hole 19 of the rod 16 and by the gap between the cylindrical separating element 60 and an oil seal 600 facing it and coupled to the slider 31 to close the axial blind hole 35. The first and second space 51 ?, 51 ?? they will be fluidly communicating with each other through passage 59.

As regards the second compartment 51 ??, the axial blind hole 19 will present? constant volume, while the tubular cavity 52 varier? of volume as the cursor 31 passes from the distal to the proximal position and vice versa.

Appropriately, the rooms 51 ?, 51 ?? they can be configured to have the maximum and minimum volume respectively in correspondence with the closed position of leaf A.

In order to allow fluid communication between the two compartments 51 ?, 51 ??, means for controlling the flow of the working fluid can be provided to allow its passage from the first compartment 51? in the second room 51 ?? during one of the opening or closing of door A and to allow it to pass through the second compartment 51 ?? in the first room 51? during the other between the opening or closing of door A.

In a preferred but not exclusive embodiment, the means for controlling the flow of the working fluid may comprise an opening 53 passing through the separation element 60 at the wall 61 and valve means for allowing the controlled passage of the fluid of work between the two rooms 51 ?, 51 ??.

Conveniently, the valve means may comprise an obturator element 64 movable in a seat 65 defined by the chamber inside the cylindrical separating element 60. The valve seat 65 will be able to move. be interposed between the through opening 53 and the blind hole 19 of the end? 17 ?? of the auction 16 and will allow? to the shutter 64 to move between a first working position, illustrated for example in FIG. 6b, in which the shutter element 64? in contact with the through opening 53 and a second working position, illustrated for example in FIG. 6a, in which the same shutter element 64? spaced from the latter.

Depending on the configuration of the shutter element 64, when the same? in the first working position the two rooms 51 ?, 51 ?? they will or will not be in fluid communication through the through opening 53 of the cylindrical separation element 60.

In a first embodiment, the shutter element 64 will be able to include a calibrated opening 54, preferably in a central position, to allow the passage of the working fluid between the two compartments 51 ?, 51 ?? through the through opening 53 when the same shutter element 64? in the first working position.

The calibrated opening 54 will be able to have a diameter of less than 1 mm, and preferably less than 0.5 mm. Indicatively, this calibrated opening 54 will be able to? have a diameter of 1? 3 tenths of a millimeter.

Therefore, when the shutter element 64? in the first working position, corresponding to the distal position of the slider 31, the working fluid will pass? exclusively through the calibrated aperture 54, while when the same shutter element 64? in the second working position, corresponding to the proximal position of the slider 31, the working fluid will pass? both through the calibrated opening 54 and through a plurality of of peripheral passages 55 of the same. In this embodiment, therefore, the hydraulic circuit 50 will be able to be entirely contained inside the blind hole 35 of the slider 31.

In a preferred but not exclusive embodiment, illustrated for example in FIGS. 11a and 11b, the valve seat 65 will be able to include a pin 650 passing through a hole 640 of the shutter element 64.

In this case, the calibrated opening 54 can? be defined by the gap between the hole 640 of the shutter element 64 and the through pin 650.

In any case, the calibrated opening 54 can? have a passage section of less than 2 mm2, preferably less than 1 mm2, even more? preferably less than 0.5 mm2 and ideally less than 0.35 mm2.

Advantageously, the plug 650 will be able to? be inserted through a hole 610 in the front wall 61 of the chamber 65.

In this case, the through opening 53 can? be defined by the space between the hole 610 of the front wall 61 of the chamber 65 and the through pin 650.

Conveniently, the plug 650 will be able to? be inserted through the shutter element 64 and the front wall 61 of the chamber 65 to move freely along the Y axis.

For this purpose, the back wall 19? of room 65 can? include a seat for the plug 650, which seat can? be defined by the axial blind hole 19.

Conveniently, the pin 650 and the axial blind hole 19 can be mutually dimensioned so that in the distal position of the slider 31 the pin 650 re-enters its seat 19 upon interaction with the bottom wall 36 of the blind hole 35, and that in the proximal position of the same cursor 31 the pin 650 telescopically protrudes from its seat 19 remaining partially inserted therein, so as not to slip off.

Thanks to the characteristics described above, the free sliding of the pin 650 during the sliding of the cursor 31 maintains the through opening 53 and the calibrated opening 54, which have very small dimensions, free from any dirt and / or foreign bodies.

Conveniently, anti-unthreading means may be provided to prevent the pin 650 from slipping out of the seat 651 during sliding. For example, office 651 will be able to? have some caulking at the ends, which will act as a stop for the pin 650.

In a second embodiment, illustrated for example in FIGS. 6a and 6b, the shutter element 64 will be? without the central calibrated hole 54. Therefore, when the shutter element 64? in the first working position, the working fluid will not be able? pass through the through opening 53 of the cylindrical separation element 60.

To allow fluid communication between compartments 51 ?, 51 ?? when the shutter element 64? in the first position of work, can? a channel 60 'peripheral to the separation element 60 be provided.

As stated above, the hinge 1? particularly suitable for glass doors A or refrigerator compartment doors.

In particular, in the embodiments of FIGS. from 1 to 21b the hinge 1 once assembled as for example in FIG. 2b will present itself? as a parallelepiped adapted to be inserted into the tubular frame of the door A, as illustrated for example in FIGS.

4a and 4b.

Furthermore, the very small dimensions of the hinge 1 also make it suitable for being inserted between the two glass panes of a double-glazing unit, as illustrated for example in FIGS.

3a and 3b.

On the other hand, the zipper 1 will be able to? cooperate with one or more? plate-like fastening elements 120 to fix a glass door A on opposite sides so that the latter remains interposed between them.

Pi? in particular, in the embodiment illustrated in FIGS. from 26 to 29b the hinge 1 can? include a portion 130 capable of interacting with a corresponding first portion A1 of the glass door A, while the fixing element 120 can? comprising a portion 131 facing the portion 130 adapted to interact with a corresponding second portion A2 of the glass door A opposite the first portion A1. Conveniently, the glass door A can? be protected by suitable gaskets 160, 160 '.

In the embodiments illustrated in FIGS. from 14 to 25b, the hinge 1 can? include portions 130, 130 'extending from opposite parts of the hinge body 10 to interact with a corresponding pair of first portions A1, A1' of the glass door A, while the fixing elements 120, 120 'may have respective second portions 131, 131 'adapted to interact with a corresponding pair of second portions A2, A2' of the glass door A opposite to the first portions A1, A1 '.

Conveniently, the first portions 130, 130 'can extend from the hinge body 10 in correspondence with a side wall thereof, while the fastening elements 120, 120' can be sized so as to remain flush with the opposite side wall of the hinge body 10 , cos? that the glass door A is placed in a substantially central position with respect to the hinge body 10.

Advantageously, the box-like shell 100 will be able to leave the portions 130 or 130, 130 'of the hinge body 10 free for fixing the glass door A.

For the reciprocal locking of the hinge 1 and of the plate-like fixing elements 120 or 120, 120 'which include a pair of screws 150, 150' which can be inserted in a corresponding pair of seats 155, 155 ', the latter possibly passing through a corresponding pair of through holes F1, F2 of the glass door A.

Thanks to the above features, the hinge 1 far? in practice from "patch" for the glass door A, and therefore avr? the minimum visual impact on it.

From what has been described above, it is evident that the hinge according to the invention achieves the intended aims.

The hinge according to the invention? susceptible of numerous modifications and variations, all of which are within the scope of the inventive concept expressed in the attached claims. All the details can be replaced by other technically equivalent elements, and the materials can be different according to the requirements, without departing from the scope of the invention.

Even if the zipper? been described with particular reference to the attached figures, the reference numbers used in the description and in the claims are used to improve the intelligence of the invention and do not constitute any limitation to the scope of protection claimed.

Claims (12)

CLAIMS 1. A hinge with reduced dimensions for closing a closing element (A) anchored to a stationary support structure (S), such as a wall, a frame or a floor, the closing element (A) or the structure of stationary support (S) defining a first floor (?), the hinge being movable between an open position and a closed position, the hinge comprising: - a hinge body (10) having a substantially plate-like shape to define a second plane (??), said hinge body (10) being anchored to one of the closing element (A) and the stationary support structure (S) in so that the first floor (?) and the second floor (??) are coincident or parallel to each other, said hinge body (10) internally comprising a working chamber (11) with a front wall (13) and a bottom wall (12) facing this one; - a pin (20) which can be anchored to the other between the closing element (A) and the stationary support structure (S) defining a first longitudinal axis (X) substantially parallel to said second plane (??) or lying on it , said pin (20) and said hinge body (10) being mutually coupled to rotate around said first axis (X) between the opening and closing positions of the closing element (A); - a cursor (31) sliding in said working chamber (11) along a second longitudinal axis (Y) substantially perpendicular to the first axis (X) between a position distal from said bottom wall (12) and a position proximal to this; wherein said pin (20) further includes a cam element (21) rotatable integrally with it, said slider (31) comprising an operative face (32) interacting with said cam element (21) so that upon opening or closing of the closing element (A) the rotation of the first (20) around said first axis (X) corresponds to the sliding of the second (31) along said second axis (Y) from the distal to the proximal position, said working chamber (11) further comprising at least one spiral spring (40) having a predetermined external diameter (?) interposed between said bottom wall (12) of said working chamber (11) and said slider (31) to act on the latter (31) in order to bring it back from the proximal to the distal position; wherein the outer diameter (?) of said at least one spiral spring (40)? substantially equal to or slightly less than the thickness (h) of said hinge body (10), said working chamber (11) including first and second guide means for guiding respectively said at least one spiral spring (40) and said slider (31) during their integral sliding along said second axis (Y), said hinge body (10) including at least one elongated through slot (70, 70 ') for the passage of said pin (20); wherein said pin (20) comprises an operative portion (21) inside said hinge body (10) which includes said cam element (21) and a fixing portion (230) protruding from the same hinge body (10) to allow fixing to the stationary support structure (S), said operative portion (21) of said pin (20) comprising a first and a second anchoring area (200, 210) of the latter (20) to said hinge body (10) , said cam element (21) being interposed between said first and second anchoring zone (200, 210), said first anchoring zone (210) being interposed between said cam element (21) and said fixing portion (230) of said pin (20) to remain inserted in said at least one elongated through slot (70, 70 ') of said hinge body (10), the latter (10) including a seat (70') facing said elongated slot ( 70) intended to house said second anchoring area (200) of said pin (20), wherein said hinge body (10) further includes at least a first annular element (260), respectively a first and a second annular element (260, 250), inserted in or monolithic with said elongated through slot (70) or said seat (70 '), respectively said elongated through slot and said seat (70, 70'), to come into contact with the first zone (210) or with the second anchoring zone (200), respectively with both the first and the second zone of anchoring (210, 200), of said operative portion (21) of said pin (20), so as to block it axially and / or radially opposing the thrust of said spiral spring (40) and / or avoiding its misalignment. 2. Hinge according to claim 1, wherein the distance between said first and second anchoring zones (210, 200)? substantially equal to the height of said cam element (21) of said pin (20). 3. Hinge according to claim 1 or 2, wherein said at least one first annular element (260) includes an internal surface (261) intended to come into contact with the respective anchoring zone (210), respectively said first and second annular element (260, 250) include respective internal surfaces (261, 251) intended to come into contact respectively with the first and second anchoring areas (210, 200), of the operative portion (21) of said pin (20). 4. Hinge according to the preceding claim, wherein said at least one first annular element (260) includes one or more? anti-friction elements (320) interposed between its internal surface (261) and the respective anchoring area (210) of the operative portion (21) of said pin (20) and in contact with them, called one or more? anti-friction elements (320) preferably including a plurality of of cylindrical rollers. 5. Hinge according to one or more? of the preceding claims, in which said hinge body (10) includes said elongated through slot (70) and said seat (70 '), said hinge body (10) exclusively including said first annular element (260) inserted in or monolithic with a said elongated through slot (70) and said seat (70 ') for coming into contact with one of the first area (210) and the second anchoring area (200) of said operative portion (21) of said pin (20), said hinge body (10) further including at least one pin (300, 310), respectively a pair of pins (300, 310), inserted, respectively inserted, in a respective seat (10 '' ', 10' '' ') of said hinge body (10) transversal to said second plane (??) to engage in a peripheral annular groove (215) of the other between the first zone (210) and the second anchoring zone (200) of said operating portion (21 ) of said pin (20) facing the other between said elongated through slot (70) and said seat (70 '), so that said or first annular element (260) and said at least one pin (300, 310), respectively said pair of pins (300, 310), cooperate with each other to axially and / or radially block the pin (20) by counteracting the thrust of said spring spiral (40) and / or avoiding misalignment. 6. Hinge according to one or more? of the preceding claims, wherein said at least one first annular element (260)? inserted in said elongated slot (70) or in said seat (70 '), respectively said first and second annular elements (260, 250) are inserted in said elongated slot and in said seat (70, 70'), in a removable way. 7. Hinge according to the preceding claim, wherein said at least one first removable annular element (260) includes an external surface (262) intended to remain facing or to come into contact with the internal surface (71, 71 ') of said elongated slot through (70) or of said seat (70 '), respectively said first and second removable annular elements (250, 260) include respective external surfaces (252, 262) intended to remain facing or to come into contact with the internal surfaces (71 , 71 ') of said elongated through slot and of said seat (70, 70'), of said hinge body (10). 8. Hinge according to one or more? of the preceding claims, wherein said second annular element (250) inserted in or monolithic with said seat (70 ') includes a bottom wall (253), the second anchoring zone (200) of the operative portion (21) of said pin (20) includes an anti-friction element (254) in contact with said bottom wall (253). 9. Hinge according to the preceding claim, wherein said bottom wall (253) of said second annular element (250)? substantially perpendicular to said second plane (??). 10. Hinge according to claim 8 or 9, wherein said second anchoring zone (200) of the operative portion (21) of said pin (20) includes a curved surface (254) resting on said bottom wall (253) defining said anti-friction element (254). 11. Hinge according to the preceding claim, wherein said anti-friction element (254) includes a first curved surface in contact with said second anchoring zone (200) of the operative portion (21) of said pin (20) and a second curved surface contact with said bottom wall (253). 12. A double-glazed unit (A) which includes at least a pair of mutually facing glass sheets and a hinge (1) in accordance with one or more? of the previous claims, in which the latter? interposed between said plates so that only a fixing portion (230) of said pin (20) to the stationary support structure (S) protrudes from the double glazing.