Hinge for the movement of a door, a leaf or the like, in particular for refrigerator doors

Abstract

A hinge for the controlled movement of a closing element, for example a door, a door leaf or the like, anchored to a stationary support structure, for example a frame or counter-frame or a floor. The hinge comprises a hinge body (10) and a pivot (20) which coaxially and rotationally coupled to each other to mutually rotate around an axis (X) between an open position and a closed position of the closing element. The hinge body (10) internally includes a working chamber (11) which comprises at least one first and one second actuator element (50, 60) which are mutually in contact with each other and elastic counteracting means (17). The first and the second actuator element (50, 60) are mutually coupled to each other and integrally joined respectively to the one and to the other hinge body (10) and pivot (20) to mutually move away along the axis (X) upon the mutual rotation of the latter to load the elastic counteracting means (17).

Description

[0001] HINGE FOR THE MOVEMENT OF A DOOR, A LEAF OR THE LIKE, IN PARTICULAR FOR REFRIGERATOR DOORS

[0002] DESCRIPTION

[0003] Field of the invention

[0004] The present invention generally relates to the technical field of closing and / or control systems for doors, door leaves or the like, and it particularly relates to a hinge for moving a door, a door leaf or the like, in particular for doors of refrigerators.

[0005] State of the Art

[0006] Patents EP2694764 and EP2785943 disclose hydraulic hinges having a hinge body into which there is inserted a stem with an end connected to a slider and the other end connected with a pin to a pivot provided with helical cavities which determine the motion of the door, door leaf or the like to which the hinge is connected.

[0007] The slider partitions the working chamber inside the hinge body into two variable volume compartments, placed in fluid communication with each other by means a circuit inside the hinge body. In such hydraulic hinges, the pivot, the slider and the stem lie along the same axis, which also defines the movement direction of the slider.

[0008] Such hinges have a hydraulic circuit provided in the hinge body to make the door move towards the closing position starting from a predetermined angular position, in proximity of the same closing position.

[0009] While brilliantly performing their task, such hinges have large overall dimensions and are relatively expensive, which makes them less recommendable for some applications, in particular for refrigeration.

[0010] Summary of the invention

[0011] An object of the present invention is to at least partly overcome the drawbacks illustrated above by providing a hinge for moving a door, a door leaf or the like that is highly efficient and cost-effective.

[0012] A further object of the present invention is to provide a hinge for moving a door, a door leaf or the like, having minimum dimensions.

[0013] A further object of the invention is to provide a hinge for moving a door, a door leaf or the like that is particularly easy to manufacture. A further object of the present invention is to provide a hinge for moving a door, a door leaf or the like, with a minimum number of pieces.

[0014] These and other objects which will be more apparent hereinafter, are attained by a hinge as described, illustrated and / or claimed herein.

[0015] The dependent claims define advantageous embodiments of the invention.

[0016] Brief description of the drawings

[0017] Further characteristics and advantages of the invention will be more apparent in light of the detailed description of some preferred but non-exclusive embodiments of the invention, illustrated by way of non-limiting example with reference to the attached drawings, wherein:

[0018] FIG. 1 is an exploded schematic view of a first embodiment of the hinge 1;

[0019] FIG. 2 is a partially assembled cross-sectional schematic view of the second embodiment of the hinge 1 of FIG. 1, in the closed position of the closing element;

[0020] FIG. 3 is a partially cross-sectional schematic view of the pivot 20;

[0021] FIG. 4 is a schematic view of a first embodiment of the upper 50, intermediate 60 and lower 70 actuator elements in the configuration that they take when the closing element is in the open position;

[0022] FIG. 5 is an exploded schematic view of the first embodiment of the upper 50, intermediate 60 and lower 70 actuator elements in the configuration that they take when the closing element is in closed position;

[0023] FIG. 6 is a partially cross-sectional schematic view of the slider 40 which includes the valve means 43;

[0024] FIG. 7 is an axonometric schematic view of a second embodiment of the upper 50, intermediate 60 and lower 70 actuator elements in the configuration that they take when the closing element is in closed position;

[0025] FIG. 8 is an axonometric schematic view of the second embodiment of the intermediate actuator element 60.

[0026] Detailed description of some preferred embodiments

[0027] With reference to the figures mentioned above, herein described is a hinge 1 which may be advantageously suitable to be used to move any closing element, for example a door, a door leaf or the like, anchored to a stationary support structure, for example a wall, a frame or counter-frame or a floor.

[0028] Preferably, the hinge 1 may be used for moving doors of refrigerators or fridge doors.

[0029] The hinge 1 may be hydraulic, that is include a working fluid, for example oil.

[0030] Although hereinafter reference shall be made to the closing element such as a and to the stationary support structure such as a frame of a refrigerator, it is clear that the hinge 1 may be suitable to be connected to any closing element and to any stationary support structure without departing from the scope of protection of the attached claims.

[0031] It is also clear that the door and the frame are not part of the present invention and they are not shown in the figures given that they are per se known.

[0032] Generally, the hinge 1 may comprise one or more movable elements which can be directly or indirectly anchored to the door and one or more fixed elements which can be directly or indirectly anchored to the frame.

[0033] More particularly, the hinge 1 may include a hinge body 10, which may be tubular and it may internally comprise a working chamber 11, and a pivot 20, which may include a coupling portion 21 external to the working chamber 11 which can be connected to the frame, for example in a counter-shaped seat thereof, and a shaft portion 30, which will be described better below.

[0034] Preferably, the coupling portion 21' and the shaft portion 30 of the pivot 20 may be made of a single piece, for example by turning.

[0035] The hinge body 10 and the pivot 20 may be coaxial to each other and rotatably coupled to rotate one with respect to the other around an axis X between a door closed position and a door open position.

[0036] In the preferred but non-exclusive embodiment herein illustrated, the hinge body 10 may be inserted into the tubular frame of a fridge door to rotate with it, while the pivot 20 may be connected with the frame to remain stationary.

[0037] It is however clear that one of the hinge body 10 and the pivot 20 may be fixed, while the other of the hinge body 10 and the pivot 20 may be movable without departing from the scope of protection of the attached claims. Advantageously, the shaft portion 30 of the pivot 20 may be inserted into the hinge body 10 coaxially thereto, so as to define the axis X. Advantageously, the hinge body 10 may include upper and lower closing caps 14', 14" of the working chamber 11, which may be advantageously fitted on the shaft portion 30. Furthermore, the pivot 20 may include a lower end abutment portion 31'.

[0038] In the event of a hydraulic hinge, between the closing caps 14', 14" and the shaft portion 30 and between them and the hinge body 10 may be provided with suitable hydraulic sealing means, for example an O-ring 15.

[0039] In a preferred but non-exclusive embodiment, in particular in the event of hydraulic hinge, inside the working chamber 11 there may be provided for a slider 40 slidable along the axis X for partitioning it into two variable volume compartments 12, 13 which are fluidly communicating with each other and adjacent.

[0040] The slider 40 may include a narrow upper portion 41' and an enlarged lower portion 41", which may include one or more through openings 41 for placing in fluidic communication two variable volume compartments 12, 13.

[0041] Possibly, as shown by way of non-limiting example in FIG. 6, at the one or more 41 there may be arranged one-way valve means 43, which may comprise a shutter 42 forced by a spring 42' and a grub screw 42" against a seat 42'" passing through the same grub screw 42".

[0042] Furthermore, there may be provided for elastic counteracting means 17, for example a compression spring.

[0043] Suitably, the elastic counteracting means 17 may consist of one or more thrust springs, so that the hinge 1 is a closing hinge.

[0044] Suitably, both the elastic counteracting means 17 and, when present, the slider 40 may be arranged coaxially to the shaft portion 30, preferably the one subsequently to the other. More particularly, the elastic counteracting means 17 may be interposed between the slider 40 and the lower closing cap 14' of the hydraulic chamber 11.

[0045] Generally, upon the mutual rotation between the pivot 20 and the hinge body 10, for example to move the door from a closing position to an opening position, the elastic counteracting means 17 are loaded. Furthermore, upon closing the door, the elastic counteracting means 17 are unloaded. Should the hinge 1 be a closing hinge, the unloading of the elastic counteracting means 17 will promote the reverse mutual rotation between the pivot 20 and the hinge body 10, and the resulting closing of the door.

[0046] In order to allow such movement, there may be inserted into the working chamber 11 suitable actuator means, which may advantageously comprise two or more actuator elements which are mutually coupled to each other.

[0047] In particular, in the embodiment shown herein, the hinge 1 may comprise three actuator elements, all in contact with each other so as to define an upper actuator element 50, an intermediate actuator element 60 and a lower actuator element 70.

[0048] In such particular embodiment, the intermediate actuator element 60 may be integrally joined with the shaft portion 30 of the pivot 20, while the two upper and lower actuator elements 50, 70 may be integrally joined with the hinge body 10.

[0049] Although hereinafter reference will be made to such embodiment, it is clear that the hinge may comprise any number of actuator elements, provided that they are mutually coupled, at least two and integrally joined with the pivot 20 and the other integrally joined with the hinge body 10, without departing from the scope of protection of the attached claims.

[0050] Advantageously, the shaft portion 30 may have a prismatic portion 32 adapted to be engaged with a corresponding counter-shaped portion of the actuator element 60 and cylindrical portions 33, 34 at the two upper and lower actuator elements 50, 70. Furthermore, the latter may all have respective coupling portions 51, 71 slidable in suitable axial guide cavities 16 of the hinge body 10, which may act as anti-rotation means for the upper and lower actuator elements 50, 70.

[0051] Suitably, the upper and lower actuator elements 50, 70 integrally joined with the hinge body 10 may be rotatably locked with respect to the latter, while the intermediate actuator element 60 which is integrally joined with the pivot 20 may be free to rotate with respect to the hinge body 10.

[0052] In this manner, the mutual rotation between the hinge body 10 and the pivot 20 may promote the moving away and the approaching between the upper actuator element 50, the intermediate actuator element 60 and the lower actuator element 70. FIGS. 1 and 4 show the three upper 50, intermediate 60 and lower 70 actuator elements respectively in a mutually approached position, which corresponds to the door closed, and mutually moved away, position which corresponds to the door open position.

[0053] The mutual moving away between the upper actuator element 50, the intermediate actuator element 60 and the lower actuator element 70 may allow the operative surface 74 of the latter, possibly through the slider 40 when present, to load the elastic counteracting means 17. Furthermore, the subsequent unloading thereof will promote the approaching of the three actuator elements 50, 60 and 70, and the resulting closure of the door should the elastic counteracting means 17 include one or more thrust springs.

[0054] The upper 50, intermediate 60 and lower 70 actuator elements will allow to appropriately load the elastic counteracting means 17, that is make the latter carry out an adequate stroke, minimising the diameter of the hinge.

[0055] Suitably, the upper actuator element 50 may have an upper 54 and lower 52 operative surface, the intermediate actuator element 60 may have upper and lower operative surfaces 61, 62 and the lower actuator element 70 may have an upper 72 and lower 74 operative surface.

[0056] Suitably, the upper operative surface 54 of the upper actuator element 50 may interact or be in contact with the upper cap 14", while the lower operative surface 74 of the lower actuator element 70 may interact or be in contact with the elastic counteracting means 17.

[0057] Upon the mutual rotation between the hinge body 10 and the pivot 20, the lower operative surface 52 and the upper operative surface 61 and the lower operative surface 62 and the upper operative surface 72 may mutually slide on each other, approaching and moving away with respect to each other.

[0058] In particular, as shown in FIG. 1, when the door is closed, that is when the upper 50, intermediate 60 and lower 70 actuator elements are at the minimum distance dl, the upper 52 and lower 61 operative surfaces and the lower 62 and upper 72 operative surfaces may have the maximum mutual contact surface. In particular, in such position in the event of coextensive surfaces, all the points of a surface may be in contact with the corresponding points of the adjacent surface.

[0059] On the other hand, as illustrated in FIG. 4, when the door is open, that is when the upper 50, intermediate 60 and lower 70 actuator elements are at the maximum distance d2, the upper 52 and lower 61 operative surfaces and the lower 62 and upper 72 operative surfaces may have the minimum mutual contact surface.

[0060] Preferably, in a first preferred but non-exclusive embodiment, for example shown in FIGS. 1, 2, 4 and 5, each lower 52 and upper 61 operative surfaces and the lower 62 and upper 72 operative surfaces may have a respective central portion 53', 63', 64' and 73' at the axis X that is substantially inclined with respect to the latter, preferably with an inclination of about 45°.

[0061] This will guarantee a maximum stroke of each actuator element upon rotation between the pivot 20 and the hinge body 10.

[0062] Furthermore, advantageously, each of the lower 52 and upper 61 operative surfaces and the lower 62 and upper 72 operative surfaces may have respective end portions 53", 53'"; 63", 63'"; 64", 64'"; 73", 73'" that are substantially perpendicular with respect to the axis X.

[0063] This will allow to have stable stop positions both when the door is closed and when it is open.

[0064] Suitably, the end portions 53", 63", 64" and 73" may be arranged at the upper part with respect to the opposite end portions 53'", 63'", 64'" and 73'", the respective central portions 53', 63', 64' and 73' being interposed between the latter.

[0065] Furthermore, preferably, between the end portions 53", 63", 64" and 73" and the respective central portions 53', 63', 64' and 73' and between the latter and the respective opposite end portions 53'", 63'", 64'" e 73'" there may be interposed respective curved connection portions 53"", 53'""; 63"", 63'""; 64"", 64'""; 73"", 73'"".

[0066] As a whole, the assemblies of the portions 53', 53", 53'", 53"", 53'""; 63', 63", 63'", 63"", 63'""; 64', 64", 64'", 64"", 64'""; 73', 73", 73'", 73"", 73'"" which respectively form the lower 52 and upper 61 operative surfaces and the lower 62 and upper 72 operative surfaces may have a generally sinusoidal development.

[0067] When the door is closed, that is when the upper 50, intermediate 60 and lower 70 actuator elements are at the minimum distance dl, the lower 52 and upper 61 operative surfaces and the lower 62 and upper 72 operative surfaces may have, all the five of them, the respective portions 53', 53", 53'", 53"", 53'""; 63', 63", 63'", 63"", 63'""; 64', 64", 64'", 64"", 64'""; 73', 73", 73'", 73"", 73'"" in mutual contact.

[0068] On the other hand, as illustrated in FIG. 4, when the door is open, that is when the upper 50, intermediate 60 and lower 70 operative surfaces are at the maximum distance d2, due to the rotation of the intermediate actuator element 60 with respect to the actuator elements 50, 70, the lower 52 and upper 61 operative surfaces and the lower 62 and upper 72 operative surfaces may have only the end portions 53'", 63" and 64'", 73" in mutual contact, while the end portions 53", 63'" and 64", 73'" may remain mutually spaced apart by a distance D.

[0069] Advantageously, in a second preferred but not exclusive embodiment, for example shown in FIG. 7, each of the upper 52 and lower 61 operative surfaces and the lower 62 and upper 72 operative surfaces may have first and second flat surfaces 520', 520" arranged side by side; 610', 610"; 620', 620"; 720', 720" vertically spaced from each other and connected by first and second inclined surfaces 520'", 520""; 610'", 610""; 620'", 620""; 720'", 720"".

[0070] FIG. 8 show by way of example the first and second flat 620', 620" and inclined 620'", 620"" surfaces, it being understood that the other surfaces basically have the same configuration.

[0071] Such embodiment will allow to balance the forces which are generated upon the mutual rotation between the pivot 20 and the hinge body 10, besides allowing to have an ambidextrous hinge.

[0072] The mutual moving away of the upper 50, intermediate 60 and lower 70 actuator elements may enable the latter to act on the slider 40 not only to lode the elastic counteracting means 17 but also to displace the working fluid from the lower variable volume compartment 12 to the upper variable volume compartment 13.

[0073] During such step, the working fluid may flow through the passing through the channel 41 of the slider 40 and through the openings 35, 36 and the channel 37 of the shaft portion 30 of the pivot 20. However, such elements may be mutually sized and / or configured so that the working fluid in such step tends to flow substantially exclusively through the channel 41.

[0074] If present, during such step, the valve means 43 may be opened to let the working fluid to flow through the channel 41.

[0075] Still in the case of the hydraulic chamber 1, the by being unloaded elastic counteracting means 17, may act on the slider 40 and on the upper 50, intermediate 60 and lower 70 actuator elements to promote not only the mutual approaching thereof but also the return of the working fluid from the upper variable volume compartment 13 to the lower variable volume compartment 12.

[0076] During such step, the working fluid may flow through both the openings 35, 36 and the channel 37 of the shaft portion 30 of the pivot 20 which flows through the channel 41.

[0077] However, such elements may be mutually sized and / or configured so that the working fluid in such step tends to flow substantially exclusively through the openings 35, 36 and the channel 37 of the shaft portion 30 of the pivot 20.

[0078] If present, during such step, the valve means 43 may be closed to lock the through- flow of the working fluid through the channel 41 and force it to flow through the openings 35, 36 and the channel 37 of the shaft portion 30 of the pivot 20.

[0079] In the channel 37, at the opening 36 there may be inserted an adjustment element 80, per se known, screwed in the duct 38, which may be counter-threaded at least in the part at the opening 36.

[0080] The through-flow section between the channel 37 and the operative portion 81 of the adjustment element 80 may determine the closing speed of the door. It may be adjusted by acting on the adjustment element 80. To this end, the operating portion 82 of the latter is accessible from the external by means of a special tool, for example an Allen key, to be inserted through the duct 38.

[0081] In the light of the above, the invention attains the pre-established objects.

[0082] The invention is susceptible to numerous modifications and variants, all falling within the scope of protection of the attached claims. All details can be replaced by other technically equivalent elements, and the materials can be different depending on the needs, without departing from the scope of protection of the invention defined by the attached claims.

[0083] 5

Claims

CLAIMS1. A hydraulic closing hinge for the controlled closure of a closing element, for example a door, a door leaf or the like, anchored to a stationary support structure, for example a frame or counter-frame or a floor, the hinge comprising:- a hinge body (10) which can be anchored to one of the closing element or the stationary support structure;- a pivot (20) which can be anchored to the other of the closing element or the stationary support structure; wherein said hinge body (10) and pivot (20) are coaxially and rotatably coupled to mutually rotate around said axis (X) between an open position and a closed position of the closing element; wherein said hinge body (10) internally includes a working chamber (11) defining said axis (X) which comprises:- a working fluid;- a slider (40) slidable along said axis (X) to at least partly partition said working chamber (11) into at least two variable volume compartments (12, 13) fluidly communicating with each other and preferably adjacent;- at least one first actuator element (50);- at least one second actuator element (60) mutually in contact with said at least one first actuator element (50);- elastic counteracting means (17) mutually interacting with said at least one second actuator element (60); wherein said pivot (20) comprises a coupling portion (21) external to said working chamber (11) and a shaft portion (30) defining said axis (X) inserted into said working chamber (11), said at least one first actuator element (50), at least one second actuator element (60), elastic counteracting means (17) and a slider (40) being coaxially inserted into said shaft portion (30); wherein the and the other of at least one first actuator element (50) and at least one second actuator element (60) are integrally joined with respectively to one or the other of said hinge body (10) and pivot (20), said elastic counteracting means (17) comprising orconsisting of at least one thrust spring; wherein said at least one first actuator element (50) and at least one second actuator element (60) are mutually coupled so as to mutually move away along said axis (X) upon the mutual rotation between said hinge body (10) and pivot (20) from the closed position to the open position of the closing element to promote the loading of said elastic counteracting means (17) and act on said slider (40) to displace the working fluid from one to the other of said variable volume compartments (12, 13), and so that upon the unloading of said elastic counteracting means (17), said at least one first actuator element (50) and at least one second actuator element (60) are mutually approached along said axis (X) and the working fluid returns from the other to the one of said variable volume compartments (12, 13), so as to promote the reverse mutual rotation between said hinge body (10) and pivot (20) and the controlled closure of the closing element.

2. Hinge according to claim 1, wherein said at least one first actuator element (50) has at least one first operative surface (52), said at least one second actuator element (60) having at least one second operative surface (61) mutually in contact with said at least one first operative surface (52) and a third opposite operative surface (62) operatively interacting with said elastic counteracting means (17), upon the mutual rotation between said hinge body (10) and pivot (20), said first and second operative surface (52, 61) sliding mutually the one with respect to the other.

3. Hinge according to the preceding claim, wherein said hinge body (10) and pivot (20) rotate between a closed and open position of the closing element wherein said at least one first actuator element (50) and at least one second actuator element (60) respectively have the minimum distance (dl) and the maximum distance (d2), said first and second operative surfaces (52, 61) having the maximum and the minimum contact surface when said hinge body (10) and pivot (20) are in the closed and open position of the closing element.

4. Hinge according to the preceding claim, wherein said first and second operative surfaces (52, 61) have respective end portions (53", 53"'; 63", 63"') and a central portion (53', 63') interposed between them, each central portion (53', 63') being substantially inclined with respect to said axis (X), preferably with an inclination of about 45°.

5. Hinge according to the preceding claim, wherein at least one of said respective end portions (53", 53"'; 63", 63"') is substantially perpendicular with respect to said axis (X), preferably both said respective end portions (53", 53'"; 63", 63'") being substantially perpendicular with respect to said axis (X).

6. Hinge according to claim 4 or 5, wherein when said hinge body (10) and pivot (20) are in the closed position of the closing element, said end portions (53", 53'"; 63", 63'") and central portions (53', 63') of said first and second operative surfaces (52, 61) are mutually in contact with each other, and wherein when said hinge body (10) and pivot (20) are in the open position of the closing element, only one of said end portions (53", 53'"; 63", 63'") of said first and second operative surfaces (52, 61) are in contact with each other, the other of said end portions (53", 53'"; 63", 63'") and the central portions (53', 63') of said first and second operative surfaces (52, 61) being mutually spaced apart with respect to each other.

7. Hinge according to claim 4, 5 or 6, wherein one of the respective end portions (53", 53'"; 63", 63'") of said first and second operative surfaces (52, 61) is arranged above the other of the respective end portions (53", 53'"; 63", 63'") thereof.

8. Hinge according to one or more of the preceding claims, wherein one of said at least one first actuator element (50) and at least one second actuator element (60) is rotatably locked with respect to said hinge body (10), the other of said at least one first actuator element (50) and at least one second actuator element (60) being free to rotate with respect to said hinge body (10).

9. Hinge according to one or more of the preceding claims, wherein said working chamber (11) further comprises at least one third actuator element (70) integrally joined movable or fixed with at least one first actuator element (50), said at least one first actuator element (50), at least one second actuator element (60) and at least one third actuator element (70) being mutually configured so as to mutually move away along said axis (X) upon the mutual rotation between said hinge body (10) and pivot (20) to promote the loading of said elastic counteracting means (17) and so that upon the unloading of the latter, said at least one actuator element (50), at least one second actuator element (60) and at least one third actuator element (70) mutually approach each other along said axis (X), said at least one third actuator element (70) having a fourth operative surface (72) mutually incontact with said third operative surface (62) and a fifth opposite operative surface (74) operatively acting on said elastic counteracting means (17), upon the mutual rotation between said hinge body (10) and pivot (20) said first, second, third and fourth operative surfaces (52, 61, 62, 72) mutually sliding the one on the other, said first and second operative surfaces (52, 61) and third and fourth operative surfaces (62, 72) having the maximum and the minimum contact surface when said hinge body (10) and pivot (20) are respectively in the closed and open position of the closing element.

10. Hinge according to one or more of the preceding claims, wherein said shaft portion (30) comprises at least one cylindrical portion (33) and at least one prismatic portion (32), the one of said at least one first actuator element (50) and at least one second actuator element (60) being coupled with said at least one cylindrical portion (33), the other of said at least one first actuator element (50) and at least one second actuator element (60) being coupled with said at least one prismatic portion (32), said one of said at least one first actuator element (50) and at least one second actuator element (60) being slidably engaged with said hinge body (10).

11. Hinge according to one or more of the preceding claims, wherein said slider (40) is interposed between said at least one second actuator element (60) and said elastic counteracting means (17).

12. Hinge according to one or more of the preceding claims, wherein said elastic counteracting means (17) are arranged in said one of said first and second variable volume compartment (12, 13), said at least one first actuator element (50) and at least one second actuator element (60) being arranged in said other of said first and second variable volume compartment (12, 13).

13. Hinge according to one or more of the preceding claims, wherein said slider (40) comprises a first channel (41) which includes valve means (43) configured to open upon the mutual rotation between said hinge body (10) and pivot (20) from the closed position to the open position of the closing element and to close upon said reverse mutual rotation between said hinge body (10) and pivot (20).

14. Hinge according to one or more of the preceding claims, wherein said shaft portion (30) comprises a second through passing axial channel (37) having a first opening(36) in said one of said first and second variable volume compartment (12, 13) and a second opening (35) in said other of said first and second variable volume compartment (12, 13).

15. Hinge according to claims 13 and 14, wherein upon the mutual rotation between said hinge body (10) and pivot (20) from the closed position to the open position of the closing element, the working fluid flows both through said first channel (41) and through said second through passing axial channel (37) to flow from said one to said other of said variable volume compartments (12, 13), upon said reverse mutual rotation between said hinge body (10) and a pivot (20), the working fluid exclusively flowing through said second through passing axial channel (37) to flow from said other to said one of said variable volume compartments (12, 13).

16. Hinge according to claims 14 or 15, wherein said shaft portion (30) comprises a through duct (38) coaxial with said second channel (37) and communicating therewith, there being provided for an adjustment element (80) inserted into said duct (38) having an operative portion (81) arranged in said second channel (37) at said first opening (36) and an operating portion (82) accessible from the external by an operator through said through duct (38) to adjust the closing speed of the closing element.

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