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EP-4526536-B1 - HYDRAULIC HINGE FOR THE CONTROLLED ROTATABLE MOVEMENT OF A DOOR OR A LEAF

EP4526536B1EP 4526536 B1EP4526536 B1EP 4526536B1EP-4526536-B1

Inventors

  • BACCHETTI, LUCIANO

Dates

Publication Date
20260506
Application Date
20230712

Claims (15)

  1. A hinge for the hydraulic control during opening and closing of a closing element (D), in particular a security door or door leaf, which can be anchored to a stationary support structure (W), in particular a frame and a subframe of a security door or door leaf, the hinge for the hydraulic control comprising: - a fixed upper or lower half-body (100) which can be anchored to the stationary support structure (W); - a movable upper or lower half-body (110) which can be anchored to the closing element (D), - at least one pivot (120) defining a first axis (X) integrally connected with one of said movable half-body (110) and said fixed half-body (100), the other of said movable half-body (110) and said fixed semi-body (100) including a seat (101) for said at least one pivot (120) so as to support the mutual integrally joined rotation around said first axis (X) of said movable half-body (110) and of said at least one pivot (120) with respect to said fixed half-body (100) between at least one opening position and at least one closing position; wherein said other of said movable half-body (110) and said fixed half-body (100) includes: - at least one first and one second hydraulic working chamber (11, 12) comprising said working fluid, said at least one first and one second hydraulic working chamber (11, 12) comprising at least one respective inlet port (13', 14'), said at least one and one second hydraulic working chamber (11, 12) both facing said seat (101); - a line (15) for the fluidic connection of said at least one first and one second hydraulic working chamber (11, 12); - at least one element (40) for adjusting the flow of the working fluid arranged in said fluidic connection line (15); - at least one first and one second stem (20', 20") sealingly slidably inserted into the respective inlet port (13', 14') for sliding along a respective second and third axis (Y', Y") substantially parallel to each other and substantially perpendicular with respect to said first axis (X), each of said at least one first and one second stem (20', 20") comprising a respective end (21", 22") inside the respective at least one first and one second hydraulic working chamber (11, 12) and a respective opposite end (21', 22') external thereto slidable along the respective second and third axis (Y', Y") between respective positions distal from and proximal to the respective inlet ports (13', 14'), said opposite ends (21', 22') of said at least one first and one second stem (20', 20") facing said at least one pivot (120); wherein said at least one pivot (120) comprises at least first and second cam means (210, 215) susceptible to interact selectively and alternately with corresponding at least first and second cam follower means (25', 25") integrally coupled respectively with said opposite ends (21", 22") of said at least one first and one second stem (20', 20"), said first and second cam follower means (215, 210) and said first and second cam follower means (25', 25") being mutually superimposed; so that to the rotation of said movable half-body (110) with respect to said fixed half-body (100) around said first axis (X) there corresponds the sliding of one of said opposite ends (21') along the respective second or third axis (Y') from the respective distal position towards the respective proximal position and the simultaneous sliding of the other of said opposite ends (22') along the respective second or third axis (Y") from the respective proximal position towards the respective distal position and vice versa, so that the movement of said at least one first and one second stem (20', 20") hydraulically dampens that of the pivot (120); wherein said fixed upper or lower half-body (1) being substantially parallelepiped-shaped, characterized in that - said working fluid is exclusively contained in said at least one first and one second working chamber (11, 12) and said fluidic connection line (15), said at least one pivot (120) and said opposite ends (21', 22') of said at least one first and one second stem (20', 20") remaining dry; - the at least first and second cam means (210, 215) are susceptible to dry interact selectively and alternately with corresponding at least first and second cam-follower means (25', 25") and in that both said fixed (100) and movable (110) half-body include metal blocks, so as to be able to withstand high loads without being deformed.
  2. Hinge according to claim 1, wherein said second and third axis (Y', Y") define a plane (π), said fixed upper or lower half-body (100) being substantially parallelepiped-shaped including a first and a second pair of opposite surfaces parallel to each other and to said plane (π), each of the surfaces of said first pair having an extension greater than that of the surfaces of said second pair, said first axis (X) extending parallel to said first pair of surfaces in proximity of one of the surfaces of said second pair.
  3. Hinge according to claim 1 or 2, wherein said seat (101) passes through said other of said movable half-body (110) and said fixed half-body (100), said at least one pivot (120) being inserted - with minimum clearance - inside said through seat (101).
  4. Hinge according to the preceding claim, wherein said through seat (101) has a first and a second end (200, 201) opposite to each other, the hinge further comprising at least one first and one second anti-friction element (130, 131) arranged respectively at said first and at second end (200, 201) of said through seat (101), said at least one first anti-friction element (130) being designed to be loaded by said one of said movable half-body (110) and said fixed half-body (100), the hinge further comprising a pressing element (202) integrally joined with said at least one pivot (120) and arranged at said second end (201) so as to come into contact with said at least one second anti-friction element (130, 131) in case of inclination of said first axis (X).
  5. Hinge according to any one of the preceding claims, wherein said movable half-body (110) rotates with respect to said fixed half-body (100) so that: - to the rotation from one of said at least one opening position and at least one closing position towards the other of the latter, there corresponds the sliding of one of said opposite ends (21') along the respective second or third axis (Y') from the respective distal position towards the respective proximal position and the simultaneous sliding of the other of said opposite ends (22') along the respective second or third axis (Y") from the respective proximal position towards the respective distal position; and - to the rotation of the other of said at least one opening position and at least one closing position towards said one of the latter, there corresponds the sliding of said one of said opposite ends (21') along the respective second or third axis (Y') from the respective proximal position towards the respective distal position and the simultaneous sliding of said other of said opposite ends (22') along the respective second or third axis (Y") from the respective distal position towards the respective proximal position.
  6. Hinge according to claim 1, wherein said at least one first and one second hydraulic working chamber (11, 12) respectively comprise at least one first and one second opening (13', 13") and at least one third and one fourth opening (14', 14"), said at least one second and at least one fourth opening (13", 14") being mutually fluidically connected by means of said fluidic connection line (15), said at least one first and at least one third opening (13', 14') defining said inlet ports.
  7. Hinge according to the preceding claim, wherein said movable half-body (110) rotates with respect to said fixed half-body (100) so that: - to the rotation from one of said at least one opening position and at least one closing position towards the other of the latter, there corresponds the sliding of said at least one first stem (20') along said second axis (Y') from said at least one first opening (13') towards said at least one second opening (13") and the corresponding sliding of said at least one second stem (20") along said third axis ( Y ")from said at least one fourth opening (14") towards said at least one third opening (14'); and - to the rotation of the other of said at least one opening position and at least one closing position towards said one of the latter, there corresponds the sliding of said at least one second stem (20") along said third axis (Y") from said at least one third opening (14') towards said at least one fourth opening (14") and the corresponding sliding of said at least one first stem (20') along said second axis (Y') from said at least one second opening (13") towards said at least one first opening (13').
  8. Hinge according to any one of the preceding claims, wherein the distal position of the opposite end (22') of one of said at least one first and one second stem (20") corresponds to said at least one closing position of the closing element (D), upon opening the closing element (D), the mutual interaction between the corresponding first or second cam means (210, 215) and first or second cam follower means (25', 25") pushing the opposite end (22') of said one of said at least one first and one second stem (20") from the distal position towards the proximal position, the sliding of the opposite end (22') of said one of said at least one first and one second stem (20") from the distal position towards the proximal position to promote the reverse sliding of the opposite end (21') of said other of said at least one first and one second stem (20'), during said reverse sliding the other of said first or second cam means (210, 215) and first or second cam follower means (25', 25") being preferably spaced apart.
  9. Hinge according to the preceding claim, wherein upon closing the closing element (D), the interaction between said corresponding first or second cam means (210, 215) and said first or second cam follower means (25', 25") promote the interaction between said other of the first or second cam means (210, 215) and the first or second cam follower means (25', 25"), the latter interaction promoting the sliding of the opposite end (21') of said other of said at least one first and one second stem (20') from the distal position towards the proximal position and the corresponding reverse sliding of the opposite end (22') of said one of said at least one first and one second stem (20") from the proximal position towards the distal position.
  10. Hinge according to one or more of the preceding claims, wherein said at least one first and one second stem (20', 20") are inserted into the respective at least one first and one second hydraulic working chamber (11, 12) to slide along the respective second and third axis ( Y ', Y ") with a first and a second predetermined stroke, said at least first and second cam means (210, 215) and at least first and second cam follower means (25', 25") being mutually configured so that said first and second stroke are substantially equal, so that the volume of working fluid displaced from one of said at least one first and one second stem (20', 20") corresponds to the volume left free from the other of said at least one first and one second stem (20', 20") in the corresponding hydraulic working chamber (11, 12).
  11. Hinge according to the preceding claim, wherein said at least first and second cam means (210, 215) comprise respective at least one first and one second plane (210', 215') substantially perpendicular to each other and substantially parallel to said first axis (X), said at least first and second cam follower means (25', 25") comprising respective at least one third and one fourth contact surface (250', 250") with respectively said at least one first and one second plane (210', 215') substantially flat and parallel to each other and to said first axis (X).
  12. Hinge according to the preceding claim, wherein said at least one third and one fourth contact surface (250', 250") have respective first inclinations (α) predetermined with respect to the respective second and third axis (Y', Y"), said at least one first plane (210') in said closing position having a second inclination (β') with respect to the respective second axis (Y') substantially coincident with said first inclination (α), said at least one second plane (215') in said closing position having a third inclination (β") with respect to the respective third axis (Y"), said second and third inclination (β', β") being complementary angles.
  13. Hinge according to claim 11 or 12, wherein said at least one first and one second stem (20', 20") are substantially equal.
  14. Hinge according to claim 11, 12 or 13, wherein said at least one first and one second plane (210', 215') comprise respective first and second bevelled end portions (210", 215") susceptible to come into contact with said at least one third and one fourth contact surface (250', 250") respectively in proximity of the door closed position and of the door open position.
  15. Hinge according to one or more of the preceding claims, wherein said other of said movable half-body (110) and said fixed half-body (100) further includes at least one abutment grub screw (140), said at least one pivot (120) further comprising at least one abutment surface (240) susceptible to abut against said at least one abutment grub screw (140) for mechanically locking the rotation of the door in a predetermined open locking position.

Description

Technical field The present invention generally relates to the technical field of hinges, and it particularly relates to a hinge for the controlled rotary movement of a door or door leaf, by way of non-exclusive example a security door or door leaf. State of the Art Hinges for the rotary movement of a door or door leaf which generally comprise a hinge body and a pivot rotatably connected to each other to mutually rotate between a door open position and a door closed position, are known. In particular, the European patent application EP3306022A1 and the international patent application WO2014167546A2 on behalf of the Applicant in question disclose concealable hinges whose hinge body consists of two half-bodies, for example a fixed half-body which can be anchored to a stationary support structure, for example a door frame of subframe, and a movable half-body which can be anchored to a security door or door leaf. The movable and fixed bodies are rotatably coupled to each other using a pivot inserted into a seat of the fixed body and integrally joined with the movable body so that the latter rotates rotatably supported by the former. Despite performing the pre-established tasks excellently, such hinges can be improved, in particular as regards the control during opening and closing of the door or door leaf. From GB2484527 a hinge is known having all the features of the preamble of the independent claim 1. Summary of the invention An object of the present invention is to at least partly overcome the drawbacks illustrated above by providing a hydraulic hinge that is highly functional and cost-effective. Another object of the invention is to provide a hydraulic hinge that ensures the full control of a door or door leaf both when opening and closing. Another object of the invention is to provide a hydraulic hinge that is highly durable over time. Another object of the invention is to provide a hydraulic hinge that is simple to manufacture. Another object of the invention is to provide a hydraulic hinge that is small in size. Another object of the invention is to provide a hydraulic hinge that has a minimum number of components. Another object of the invention is to provide a hydraulic hinge that is safe. Another object of the invention is to provide a hydraulic hinge that is easy to install. These and other objects which will be more apparent hereinafter, are attained by a hydraulic hinge according to claim 1. The dependent claims define advantageous embodiments of the invention. Brief description of the drawings 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: FIGS. 1 and 2 are axonometric schematic views - respectively assembled and exploded - of an embodiment of a hydraulic control hinge 1;FIG. 3 is an axonometric schematic view which illustrates the assembly of the embodiment of the hydraulic control hinge 1 of FIG. 1 on a door D;FIG. 4 is an axonometric schematic view which shows the pivot 120;FIGS. 5A, 5B and 5C are axonometric schematic figures respectively of a first, a second and a third embodiment of one of the stems 20';FIGS. 6A, 6B, 6C, 6D and 6E show figures respectively from the top in axial cross-sectional view taken along a plane of line VIB - VIB and radial cross-sectional respectively taken along planes of line VIC - VIC, VID - VID and VIE - VIE of the embodiment of the hydraulic control hinge 1 of FIG. 1 in door closed position, with FIG. 6F showing some enlarged details;FIGS. 7A, 7B, 7C, 7D and 7E show figures respectively from the top in axial cross-sectional view taken along a plane of line VIIB - VIIB and radial cross-sectional respectively taken along planes of line VIIC - VIIC, VIID - VIID and VIIE - VIIE of the embodiment of the hydraulic control hinge 1 of FIG. 1 in the door open position at 45°;FIGS. 8A, 8B, 8C, 8D and 8E show figures respectively from the top in axial cross-sectional view taken along a plane of line VIIIB - VIIIB and radial cross-sectional respectively taken along planes of line VIIIC- VIIIC, VIIID - VIIID and VIIIE - VIIIE of the embodiment of the hydraulic control hinge 1 of FIG. 1 in the door open position at 90°;FIGS. 9A, 9B, 9C, 9D and 9E show figures respectively from the top in axial cross-sectional view taken along a plane of line IXB-IXB and radial cross-sectional respectively taken along planes of line IXC - IXC, IXD - IXD and IXE - IXE of the embodiment of the hydraulic control hinge 1 of FIG. 1 in the door open position at 110°;FIGS. 10A, 10B, 10C, 10D and 10E show figures respectively in plan view in axial cross-sectional view taken along a plane of line XB - XB and in radial cross-sectional respectively taken along planes of line XC - XC, XD - XD and XE - XE of a further embodiment of the pivot 120. Detailed description of some preferr