Recessed pivot hinge

Abstract

The present invention relates to a recessed pivot hinge (1) for hingedly fastening a door leaf (2) to a door frame, the recessed pivot hinge (1) comprising a pivot (3); a mating sleeve (4) in which the pivot (3) is fitted in a height-adjustable manner; a slot (5) capable of being recessedly fastened to or forming part of the door frame; and a fastening body (6) recessed into the door leaf for fastening in the door leaf (2); wherein magnetic elements (22, 77) of the pivot (3) and the slot (5) are used to pull the end (24) of the pivot (3) into the slot (5); and wherein the mating sleeve (4) is fastened in the fastening body (6) so that it can be adjustedly displaced along a first direction (X) transverse to the height direction (Z) and along a second direction (Y) transverse to the first direction (X) and transverse to the height direction (Z).

Description

Technical Field

[0001] This invention relates to a recessed pivot hinge for hingedly securing a door leaf to a door frame, the recessed pivot hinge comprising:

[0002] -A pivot having a first end and a second end;

[0003] - A fitting sleeve, wherein at least the first end of the pivot is fitted in a height-adjustable manner, wherein the fitting sleeve can be rotatably secured in the door leaf to secure the pivot in the door leaf; and

[0004] - A slot that can be recessed into or formed part of the door frame. Background Technology

[0005] A pivot hinge is a type of hinge that includes, on one hand, a pivot housed in a fitting sleeve within a door leaf or door frame, and on the other hand, slots (shoulders) respectively housed within the door frame or door leaf. The pivot is rotatably accommodated in the slot. The door leaf can be hingedly fixed to the door frame by means of a pivot hinge above the door and a pivot hinge below the door.

[0006] The pivot hinge of this invention is arranged above the door. In this case, its mating sleeve is received in the door leaf, and its slot is provided in the door frame. In principle, it is not necessary to provide a separate element as a slot. Drilling a hole in the door frame is sufficient.

[0007] A door is understood as a combination of a door leaf, a door frame (the boundary of a doorway), and a doorway. Doors incorporating the hinges of this invention are also called swing doors or pivot doors. These doors can be conventional doors, but can also be, for example, folding louvered doors, folding screens, etc. The door frame is understood as the complete boundary of the doorway. Therefore, the floor also forms part of the door frame, defining the doorway at that point. In the case of doors that extend through the height of the room (doors that reach the ceiling), the ceiling can also form part of the door frame, defining the doorway at that point.

[0008] Existing pivot hinges typically have a pivot that is fixedly fastened to the door leaf or door frame. However, in the case of such pivot hinges, fastening the door leaf to the door frame (in other words, fitting the pivot in the slot) is very cumbersome.

[0009] To address this issue, in various pivot hinges, such as the pivot hinge involved in this invention, a mating sleeve is fastened to the door leaf or door frame, and the pivot is displaceable in height relative to the mating sleeve. When the door leaf is mounted in the door frame by means of such a pivot hinge, a first end of the pivot extends into the mating sleeve, and a second end of the pivot extends into a slot. For example, a known example of a recessed embodiment of such a pivot hinge is described and shown in BE 1 020498A5.

[0010] JP 2002-21411A and KR 20-2018-0000324U describe a non-recessed pivot hinge in which an installer can operate the door leaf with both hands using magnetic elements in the pivot and slot without having to activate or hold the pivot. When the door leaf is not yet installed in the door frame, the first end of the pivot remains in the mating sleeve under the influence of gravity. In this case, the second end may also be located in the mating sleeve, or protrude slightly relative to the mating sleeve. When the door leaf is installed in the door frame and the pivot is in the slot, the pivot is automatically pulled into the slot by the magnetic force between the magnetic elements to fit the pivot into the slot. Then, the first end of the pivot is still in the mating sleeve, but now in a less deep position. Now, the second end of the pivot has been pulled into the slot. The door leaf is thus secured to the door frame.

[0011] One problem with existing pivot hinges is that they must be positioned very precisely. However, over time, due to expansion and / or contraction and / or wear, parts of the house tend to move relative to each other, resulting in swing doors potentially starting to drag or jam. In the case of recessed pivot hinges, the solutions in JP 2002-21411A and KR 20-2018-0000324U do not provide a solution to this problem.

[0012] EP 2 208 843 A2 recommends that recessed embodiments should be avoided for adjustable hinges. Summary of the Invention

[0013] The purpose of this invention is to provide a solution that can solve this problem in a simple way without a lot of work in the case of recessed pivot hinges.

[0014] This objective of the present invention is achieved by providing a recessed pivot hinge for hingedly securing a door leaf to a door frame, the recessed pivot hinge comprising:

[0015] -A pivot having a first end and a second end;

[0016] -Matching sleeve, at least the first end of the pivot is fitted in the matching sleeve in a height-adjustable manner, wherein the matching sleeve can be rotatably secured in the door leaf to secure the pivot in the door leaf;

[0017] - A slot that can be recessed into or formed part of the door frame; and

[0018] - Fastening body, which is recessed into the door leaf, is used to fasten the mating sleeve in the door leaf;

[0019] The pivot is provided with one or more magnetic elements, and the slot is provided with one or more magnetic elements to pull the second end of the pivot into the slot using the magnetic elements of the pivot and the slot, and the mating sleeve is fastened in the fastening body to be adjustablely displaced in a first direction transverse to the height direction, and is fastened in the fastening body to be adjustablely displaced in a second direction transverse to the first direction and transverse to the height direction.

[0020] Because the sleeve can now be adjusted to move along the first and second directions within the fastening body, lower precision is required during positioning, thus saving time. The pivot can be inserted into the slot more quickly, followed by more precise position adjustment.

[0021] Because the mating sleeve can be adjusted to move along the first and second directions within the fastening body, it is also possible to eliminate gaps caused by the movement of the housing components relative to each other due to expansion and / or contraction and / or wear. The position of the mating sleeve within the fastening body can be readjusted so that the pivot is once again precisely aligned with the slot to prevent the door from dragging or jamming.

[0022] Therefore, the fitting sleeve can be secured within the fastening body, allowing it to be adjustable along a first direction and, on the other hand, to be adjustable along a second direction via discrete linear movements. However, readjustment along the first and second directions does not necessarily have to be achieved through discrete linear movements along each of these directions; it can also be achieved through all kinds of movements including sub-components in both directions. Thus, the fitting sleeve can be secured within the fastening body, making it adjustable, for example, through hinged or rotary movements. In another alternative, the fitting sleeve can be adjustable via discrete movements along a third and fourth direction, which are not transverse to each other and are different from the first and second directions.

[0023] In one particular embodiment, the pivot hinge of the present invention includes a pivot retainer mounted in a fastening body in a manner capable of adjustable displacement, and a mating sleeve mounted in the pivot retainer in a manner capable of adjustable displacement, such that the mating sleeve is mounted in the fastening body and is capable of adjustable displacement along a first direction and a second direction.

[0024] Preferably, in this case, the pivot retainer is mounted in the fastening body so that it can be adjusted to move along a first direction, and a sleeve is mounted in the pivot retainer so that it can be adjusted to move along a second direction.

[0025] More preferably, in this case, the pivot retainer is mounted in the fastening body, enabling it to move linearly along a first direction, and a fitting sleeve is mounted in the pivot retainer, enabling it to move linearly along a second direction. By achieving linear displacement along both directions, the components of the pivot hinge can be moved relative to each other in a more intuitive way, eliminating any potential gaps.

[0026] The pivot hinge of the present invention is also preferably provided with an actuating device (actuator) for engaging a hand tool to adjustably move the mating sleeve within the fastening body. For this purpose, these actuating devices are provided with actuating heads for engaging the hand tool. These actuating heads are preferably accessible from the top of the door leaf, and more preferably from both sides of the door leaf. In this case, when the door leaf is fastened to the door frame, a gap of 4 to 8 mm is preferably present between the door leaf and the door frame.

[0027] Such an actuation device preferably includes a first actuation device configured to move the mating sleeve along a first direction, and includes at least one of the actuation heads. Here, the first actuation head preferably protrudes at least partially beyond the upper surface of the fastening body, allowing a hand tool to engage it in a simple manner. More preferably, the actuation device is configured such that the upper surface of the first actuation head forms the upper surface of the first actuation device, and always remains at the same height above the upper surface of the fastening body.

[0028] Furthermore, the actuating device preferably includes a second actuating device configured to move the mating sleeve along a second direction, and includes at least one of the actuating heads. Here, the second actuating head preferably protrudes at least partially beyond the upper surface of the fastening body, allowing hand tools to engage with it in a simple manner. More preferably, the actuating device is configured such that the upper surface of the second actuating head forms the upper surface of the second actuating device, and always remains at the same height above the upper surface of the fastening body.

[0029] Since each upper surface of the actuating head always remains at the same height above the upper surface of the fastening body, the gap between the door leaf and the door frame, which are fastened to the door frame by such a pivot hinge, can be minimized. In this case, the rest of the actuating device can be configured to be displaceable within the fastening body, in which case they can also be displaced along the height direction as long as these upper surfaces remain at the same height.

[0030] In the case of the pivot hinge of the present invention having the aforementioned actuation device, the fastening body preferably includes one or more recesses that are recessed relative to its upper surface. Thus, the actuation device is preferably partially arranged in these one or more recesses.

[0031] A portion of these actuating devices preferably extends outside the one or more recesses to allow hand tools to engage with them in a simple manner. By accommodating a portion of these actuating devices in one or more such recesses, the gap between the door leaf and the door frame, which is fastened to the door frame by such a pivot hinge, can be further reduced. In this case, the fastening body is preferably also fitted to be fully recessed into the door leaf to create a recessed pivot hinge, thereby further minimizing the gap.

[0032] More specifically, the actuation device may include a fastening device (fastener) that is displaceable in a corresponding slot so that the mating sleeve can be adjusted to move within the fastening body.

[0033] In embodiments including the aforementioned pivot retainer, the pivot retainer may thus be provided with a slot, and the first actuation device may be provided with a first fastening device that is displaceable in the slot of the pivot retainer to allow the pivot retainer to be adjustablely displaced in the fastening body. The pivot retainer may also be provided with a mating slot, and the second actuation device may be provided with a second fastening device that is displaceable in the mating slot to allow the mating sleeve to be adjustablely displaced in the pivot retainer.

[0034] By displacing such a fastening element relative to the slot in the pivot cage, the pivot cage can be positioned at different positions relative to the fastening body in a simple manner, and the mating sleeve can be positioned at different positions relative to the pivot cage in a simple manner, thereby positioning the mating sleeve at different positions relative to the fastening body in a simple manner.

[0035] The fastening elements can be implemented, for example, as bolts and nuts. These nuts and / or bolts can be manufactured, for example, in the form of guide blocks that have a guiding function in the corresponding mating space for guiding the displacement of the mating sleeve relative to the fastening body.

[0036] When adjusting the position of the mating sleeve in the fastening body, one or more surfaces of the pivot hinge components (e.g., the fastening body and the pivot retainer) are clamped together by means of such fastening elements, preferably with structural undulations to prevent undesirable movement of these components relative to each other after adjusting the position of the mating sleeve in the fastening body.

[0037] Such structural undulations can be provided, for example, in the form of grooves in such a surface.

[0038] If the guide blocks are provided, the surface of another part of the clamping pivot hinge of these guide blocks (e.g., the pivot retainer) is preferably also provided with such structural undulations when adjusting the mating sleeve.

[0039] For example, instead of providing the slot for the pivot retainer, a slot may be provided for the fastening body, and the fastening device for fastening the pivot retainer in the fastening body may be displaceably fitted in the slot as an actuating device for adjustable displacement of the pivot retainer in the fastening body.

[0040] Alternatively, for example, the pivot retainer can be configured as an eccentric element, which is fastened so that it can be displaced eccentrically within the fastening body.

[0041] The second actuation device preferably also includes an adjusting sleeve with internal threads, which serves as the aforementioned actuating head and nut. In this case, the mating sleeve preferably has corresponding external threads and serves as the aforementioned bolt and guide block. Here, the pivot cage preferably has the aforementioned mating slot, through which the mating sleeve is fastened to the adjusting sleeve by the interlocking internal and external threads, such that the mating sleeve and the adjusting sleeve can be adjusted relative to the mating slot in the pivot cage.

[0042] In this case, the mating sleeve and the adjusting sleeve are preferably engaged on the edge of the mating slot.

[0043] Furthermore, in this case, the pivot cage preferably has the aforementioned mating space, in which the mating sleeve acts as a guide block to guide the mating sleeve and adjust the displacement of the sleeve relative to the mating slot, and thereby also relative to the pivot cage.

[0044] Here, for example, the mating space may be provided with an inner collar forming the aforementioned edge, and the mating sleeve engages with the inner collar when the mating sleeve is fastened in the pivot retainer by means of the adjusting sleeve.

[0045] When the mating sleeve is secured in the pivot cage by means of the adjusting sleeve, one or more surfaces of the pivot cage, the mating sleeve and the adjusting sleeve are clamped together, preferably with structural undulations to prevent unwanted displacement of the mating sleeve and the adjusting sleeve relative to the pivot cage.

[0046] In order to enable the pivot hinge to be easily adjusted from both sides of the door leaf, the actuating head is preferably centrally disposed between the two longitudinal sides of the fastening body of the pivot hinge of the present invention, wherein the first longitudinal side is configured to be disposed on the first side of the door leaf and the second longitudinal side is configured to be disposed on the second side of the door leaf.

[0047] The pivot of the pivot hinge of the present invention is preferably provided with a permanent magnet as the aforementioned magnetic element, and the slot is also preferably provided with a permanent magnet as the aforementioned magnetic element.

[0048] Preferably, in this case, the pivot is provided with a single permanent magnet, and the slot is also provided with a single permanent magnet, thereby simplifying the assembly of the pivot on the one hand and the assembly of the slot on the other, because during their assembly, no mutually canceling magnetic forces will occur between the components of the pivot or the components of the slot.

[0049] Alternatively, for example, one could provide a permanent magnet for one of the pivot and slot, while providing the other with a component made of a ferromagnetic material, instead of providing permanent magnets for both the pivot and slot. In this case, the other of the two (slot or pivot) could also be made entirely of this ferromagnetic material.

[0050] The pivot hinge of the present invention also preferably includes a fixing device (fixing member) for fixing the pivot relative to the mating sleeve when the second end of the pivot has been pulled into the slot.

[0051] The magnetic coupling between the pivot's magnetic element and the slot is sufficient to drive the second end of the pivot into the slot. This securing mechanism ensures the pivot is firmly held in position, even if the magnetic coupling is broken by actual conditions. In this way, the pivot is prevented from loosening undesirably.

[0052] The invention will now be explained in more detail by way of the following detailed description of some preferred embodiments of the pivot hinges of the invention. The sole purpose of these descriptions is to provide exemplary examples and to illustrate further advantages and features of these pivot hinges, and therefore should not be construed as limiting the scope of the invention or the scope of the patent rights defined in the claims. Attached Figure Description

[0053] In this detailed description, reference numerals are used to refer to the accompanying drawings, in which:

[0054] - Figure 1The corner of the door leaf is shown, in which a portion of the pivot hinge of the present invention is fastened;

[0055] - Figure 2 It shows Figure 1 Top view of the pivot hinge section;

[0056] - Figure 3 It shows Figure 1 A perspective view of the pivot hinge section;

[0057] - Figure 4 It shows the complete along Figure 2 The axis AA in the middle is intercepted Figure 1 A cross-sectional view of the pivot hinge portion of the present invention shown;

[0058] - Figure 5 It shows Figure 1 A cross-sectional perspective view of the pivot hinge section;

[0059] - Figure 6 A perspective view of an alternative embodiment of the pivot hinge of the present invention is shown, wherein... Figure 1 Compared to the previous embodiment, this embodiment provides an alternative fixing element;

[0060] - Figure 7 It shows Figure 6 Independent perspective view of the fixed element of the pivot hinge in the image. Detailed Implementation

[0061] The pivot hinge (1) shown in the attached figure includes, on the one hand, a pivot (3), the first end (23) of which is fitted in a fitting sleeve (4) in a height-adjustable manner in the door leaf (2), and on the other hand, a slot (5) that can be fastened in the door frame (not shown).

[0062] In the pivot (3), a fitting space (21) is provided at the second end (24), and the fitting space (21) has a permanent magnet (22) fitted therein.

[0063] In the slot (5), a second mating sleeve (78) is provided on the first side of the first mating space (75), and the second end (24) of the pivot (3) can be fitted into the second mating sleeve. In the slot (5), on the second side opposite to the first side, a permanent magnet (77) is fitted into the second mating space (76).

[0064] When the pivot (3) is brought under the mating sleeve (78) of the slot (5), the second end (24) of the pivot (3) is driven into the mating sleeve (78) by the attraction between the permanent magnets (22, 77) of the pivot (3) and the slot (5). In order to allow the pivot (3) to be smoothly accommodated in the mating sleeve (78) of the slot (5), the inlet side of the mating sleeve (78) is provided with a guide ramp (79), and the second end (24) of the pivot (3) is also provided with a bevel (20).

[0065] To secure the slot (5) to the door frame, the slot is provided with a cylindrical housing (73) having a fastening flange (74) protruding relative to the housing (73). A space corresponding to the slot (5) may be provided in the door frame in a known manner, for example by milling, so that the slot (5) can be fixed to the door frame in a recessed manner.

[0066] As explained in the introduction, in a simple alternative embodiment, it is essentially unnecessary to provide a separate element as a slot; instead, a hole can be drilled in the door frame to serve as the slot. In such an embodiment, the hole can have a permanent magnet positioned at the top.

[0067] In the illustrated embodiment, permanent magnets (22, 77) are disposed in the pivot (3) and the slot (5). Alternatively, for example, a permanent magnet may be disposed in one of the two, and the other of the two may be at least partially made of a ferromagnetic material.

[0068] In order to fit the pivot (3) with the previously mentioned mating sleeve (4) in the door leaf (2), in the illustrated embodiment, the pivot hinge (1) is provided with a fastening body (6).

[0069] A space corresponding to the fastening body (6) is provided in the door leaf (2), so that the fastening body (6) can be recessed into the door leaf (2), just like... Figure 1 As shown in the diagram. In a wooden door leaf (2) or a louvered door or screen, the space can be milled for this purpose. Similarly, the pivot hinge (1) of the present invention can also be made in a known manner to have a suitable fastening body for fastening in a glass door leaf, in which case, similarly, a cutout is provided in the glass door leaf for this purpose.

[0070] In the illustrated embodiment, the fastening body (6) includes a fastening base (7) and a fastening plate (8). The fastening base (7) and the fastening plate (8) may be made of plastic, for example, by injection molding. In the illustrated embodiment, the fastening base (7) has a protruding flange (36) in which cutouts (37, 38) are formed to form a snap-fit ​​slot (37), the edge (80) of which is resiliently displaceable to snap-fit ​​legs (43) of the fastening plate (8) therein. By means of the snap-fit ​​legs (43) and the snap-fit ​​slot (37), the fastening plate (8) can be attached to the fastening base (7) before the fastening body (6) is accommodated in the door leaf (2). Once the fastening body (6) is housed in the door leaf (2), it can be secured in the door leaf (2) by means of screws (14) fitted through threaded holes (41) in the fastening plate (8) and corresponding threaded holes (39) in the flange (36) of the fastening base (7), such as Figure 1 and Figure 5 As shown.

[0071] The fastening base (7) is also provided with a mating space (31) in which other parts of the pivot hinge (1) can be accommodated to fasten the mating sleeve (4) in the fastening body (6). The fastening plate (8) is provided with a channel opening (40) through which the mating sleeve (4) extends partially after being fastened in the fastening body (6).

[0072] In the illustrated embodiment, the bottom of the fastening base (7) terminates at the bottom (32). In an alternative embodiment, the bottom (32) may also be omitted.

[0073] A pivot retainer (9) is installed in a mating space (31) and is adjustable in the mating space (31) along a first direction (X). A mating sleeve (4) is also installed in the pivot retainer (9) such that the mating sleeve (4) is adjustable in the second direction (Y).

[0074] To accommodate the pivot retainer (9) within the mating space (31) of the fastening base (7) of the fastening body (6), enabling it to be adjustablely displaced along a first direction (X), the pivot retainer (9) is provided with a flange (50) in which a slot (51) is provided, and the slot (51) extends primarily along the first direction (X). A bolt (15) is fitted through a corresponding hole (42) in the fastening plate (8), engages through these slots (51) in the pivot retainer (9), and engages in a corresponding threaded hole (60) in the guide block (11), which in this case functions as a nut.

[0075] To turn the bolt (15), a hand tool can be used to engage the actuating head (84) of the bolt (15). When loosening the bolt (15), its upper surface (82) remains at the same height relative to the upper surface (81) of the fastening body (6). The guide block (11) moves downward, allowing the bolt (15) to move in the slot (51) along the first direction (X). When tightening the bolt (15), the guide block (11) is pulled upward again, and the flange (50) of the pivot retainer (9) is thus clamped between the guide block (11) and the fastening plate (8). In this case, to prevent these components from subsequently moving relative to each other in an undesirable manner, the upper surface (61) of the guide block (11) is provided with a groove, and the upper surface (52) of the pivot retainer (9) is provided with a groove.

[0076] The guide block (11) acts as a guide between the outer guide surface (53) of the pivot retainer (9) and the short side surface (35) of the mating space (31) in the fastening base (7). For this purpose, the corresponding guide surfaces (64, 62) of the guide block (11) abut against the guide surfaces (53, 35) of the pivot retainer (9) and the fastening body (6). The displacement movement of the guide block (11) along the first direction (X) is restricted by the curved side surface (63) of the guide block (11), which abuts against the corresponding curved side surface (34) of the mating space (31) in the fastening body (6).

[0077] To mount the mating sleeve (4) in the pivot retainer (9) so that it can be adjusted to move along a second direction (Y), the pivot retainer (9) is provided with a mating space (45) in which an inner collar (47) defining a channel opening (48) is provided. The channel opening (48) extends substantially along the second direction (Y). The mating sleeve (4) is provided with a cylindrical base (25) configured to extend through the channel opening (48) of the pivot retainer (9) and a flange (26) protruding relative to the base (25) and configured to engage with the bottom of the inner collar (47). The base (25) is also provided with external threads (28), so that the mating sleeve (4) can be designed as a bolt. An adjusting sleeve (10) is provided with corresponding internal threads (59) and serves as a nut corresponding to the bolt. The adjusting sleeve (10) includes a cylindrical base (54) provided with an external flange (55). The portion of the cylindrical base (54) below the outer flange (55) is configured to engage with the mating space (45) of the pivot holder (9) via a top side, the outer flange (55) being configured to engage with the top of the upper surface (52) of the pivot holder (9). For rotating the adjusting sleeve (10), the base (54) above the flange (55) is designed as an actuating head (85) with a gripping surface (57) that allows a hand tool to engage with it. By fitting the mating sleeve (4) at the bottom of the mating space (45) of the pivot holder (9) and the adjusting sleeve (10) at the top of the mating space (45), and allowing the external thread (28) of the mating sleeve (4) to engage with the internal thread of the adjusting sleeve (10), the mating sleeve (4) and the adjusting sleeve (10) can be secured in the mating space (45) by tightening the adjusting sleeve (10). In this configuration, rotation of the mating sleeve (4) relative to the mating space (45) is prevented because the flange (26) of the mating sleeve (4) has a locking surface (27) that engages with the side surface (46) of the mating space (45) of the pivot retainer (9). In this way, the mating sleeve (4) is rotate-fixed in the pivot retainer (9). When the adjusting sleeve (10) is loosened, the upper surface (83) of the adjusting sleeve (10) remains at the same height above the upper surface (81) of the fastening body (6), while the mating sleeve (4) moves downward. The mating sleeve (4) and the adjusting sleeve (10) are thus able to be displaced in the second direction (Y) within the channel opening (48). When the adjusting sleeve (10) is tightened, the mating sleeve (4) is pulled upward again until it clamps the inner collar (47) of the pivot retainer (9). In order to prevent the mating sleeve (4) and the adjusting sleeve (10) from moving in an unwanted manner after tightening, on the one hand, the bottom of the inner ring (47) of the pivot retainer (9) is provided with a ribbed surface (49), and on the other hand, the bottom of the outer flange (55) of the adjusting sleeve (10) is provided with a ribbed surface (56).

[0078] To further guide the displacement of the pivot retainer (9) along the first direction (X) and the displacement of the mating sleeve (4) along the second direction (Y), in the illustrated embodiment, the pivot hinge (1) is further provided with a guide plate (12). This guide plate (12) has a channel opening (65) extending substantially along the first direction (X), through which the adjusting sleeve (10) engages. The channel opening (65) is defined by a stepped raised edge (66) of the guide plate (12), beneath which the flange (55) of the adjusting sleeve (10) engages. As the pivot retainer (9) displaces within the fastening body (6), the pivot retainer (9) drives the adjusting sleeve (10) in its displacement movement, and the adjusting sleeve (10) is displaced in a guided manner within the channel opening (65), in which case the adjusting sleeve is also guided to move along the first direction (X). In order to fully realize this displacement movement, the stepped edge (66) has a notch (68) at the end of the channel opening (65) for adjusting the flange (55) of the sleeve (10).

[0079] The guide plate (12) also serves as a guide above the upper surface (52) of the pivot retainer (9) and below the fastening plate (8), wherein the guide plate (12) is movable along the second direction (Y) together with the adjusting sleeve (10) and the mating sleeve (4), and also guides the displacement movement along the second direction (Y). In order not to be obstructed by the bolt (15) in this process, a cutout (67) is provided in the corresponding edge of the guide plate (12).

[0080] To minimize the gap between the door leaf (2) and the door frame, the fastening plate (8) is provided with a recess (44) that is recessed relative to the upper surface (81) of the fastening plate (8). Bolts (15) and adjusting sleeves (10) are arranged in the recess (44) and extend partially beyond it, allowing hand tools to engage with the adjusting sleeves. In this way, the bolts (15) and adjusting sleeves (10) are easily accessible, and hand tools can engage with them without requiring a large gap between the door leaf (2) and the door frame.

[0081] In order to install the mating sleeve (4) in the fastening body (6) in an adjustable displacement manner, many alternatives are also possible, as described in the overview section above.

[0082] If it is desired to mount the door leaf (2) to the door frame using the pivot hinge (1) shown, the flange (26) of the pivot (3) will initially rest on the bottom (32) of the fastening base (7) under the influence of gravity. Then, for example, a piece of paper can be placed above the pivot (3) so that when the door leaf (2) is manipulated into the door frame, the pivot (3) will not be pushed out of the adjusting sleeve (10) in an undesirable manner by the attraction of the magnet (77) in the slot (5). The door leaf (2) can initially be brought to almost the desired position, at which point the paper can be removed. Then, under the attraction between the permanent magnets (22, 77) of the pivot (3) and the slot (5), the second end (24) of the pivot (3) will be driven into the mating sleeve (78). In this configuration, the displacement of the pivot (3) along the height direction is restricted because the first end (23) of the pivot (3) includes a widened cylindrical portion (17) with a collar (18) abutting the cylindrical base (16) of the pivot (3). The mating sleeve (4) further includes an inner collar (30) in the insertion space (29), wherein the pivot (3) is displaceable along the height direction, and the collar (18) of the pivot (3) engages behind the inner collar (30) when the second end (24) of the pivot (3) is driven out of the mating sleeve (4). Once the pivot (3) is driven to this position, it can be fixed relative to the mating sleeve (4) by means of a fixing element (13). For this purpose, the pivot (3) is provided with a slot (19), in which, in the illustrated embodiment, the fixing element (13) can engage. For this purpose, the fixing element (13) includes an annular engagement edge (69) to engage in the slot (19). The annular engagement edge (69) is provided with an inlet (70) through which the pivot (3) can be mounted. Alternatives to this fixing element are also possible, such as the fixing element described and shown in BE 1 020498 A5.

[0083] To disassemble the door leaf (2) suspended from the door frame using the pivot hinge (1) shown, the fixing element (13) can be removed again first. For this purpose, the fixing element (13) is provided with an engaging lip (71) having an opening (72) through which a hand tool can engage with the fixing element (13) to disassemble it. In the second embodiment shown, for ease of use, the engaging lip (71) is designed to be longer than the engaging lip (71) of the first embodiment shown and is in the form of a handle (see [link]). Figure 6 and Figure 7Once the fixing element (13) is removed, the adjusting sleeve (10) can be engaged and rotated using a hand tool to tighten the mating sleeve (4) downwards. This causes the pivot (3) to move downwards against the magnetic forces of the magnets (22, 77) of the pivot (3) and the slot (5), in which case the second end of the pivot (3) is removed from the slot (5). In this way, the door leaf (2) is removed from the door frame.

Claims

1. A recessed pivot hinge (1) for hingably fastening a door leaf (2) in a door frame, comprising: - a pivot (3) having a first end (23) and a second end (24); - a fitting sleeve (4) in which at least the first end (23) of the pivot (3) is fitted in a height-adjustable manner, wherein the fitting sleeve (4) can be fastened in the door leaf (2) in a rotationally fixed manner to fasten the pivot (3) in the door leaf (2); - a socket (5) which can be fastened in a recessed manner in the door frame or forms part of the door frame; wherein the pivot (3) is provided with one or more magnetic elements (22) and the socket (5) is provided with one or more magnetic elements (77) to draw the second end (24) of the pivot (3) into the socket (5) with the magnetic elements (22, 77) of the pivot (3) and the socket (5); characterized in that the pivot hinge (1) comprises a fastening body (6) recessed into the door leaf for fastening the fitting sleeve (4) in the door leaf (2) and in that the fitting sleeve (4) is fastened in the fastening body (6) in such a way that it can be adjustably displaced along a first direction (X) transverse to the height direction (Z) and in such a way that it can be adjustably displaced along a second direction (Y) transverse to the first direction (X) and transverse to the height direction (Z), wherein the pivot hinge (1) is provided with actuating means (15, 11, 4, 10) comprising a plurality of actuating heads (84, 85) which are arranged for engagement with a hand tool for the adjustable displacement of the fitting sleeve (4) in the fastening body (6), wherein the fastening body (6) comprises an upper surface (81) from which the pivot (3) protrudes and the actuating means (15, 11, 4, 10) comprise a first actuating means (15, 11) which is configured to displace the fitting sleeve (4) along the first direction (X) and at least one first actuating head (84) of the aforementioned actuating heads (84, 85), wherein the first actuating head (84) at least partially protrudes beyond the upper surface (81) of the fastening body (6) so that a hand tool can engage therewith, and wherein the actuating head (84) comprises an upper surface (82) which also constitutes an upper surface (82) of the first actuating means (15, 11) and which always remains at the same height above the upper surface (81) of the fastening body (6).

2. A pivot hinge (1) according to claim 1, characterized in that The pivot hinge (1) comprises a pivot holder (9) which is mounted in the fastening body (6) in an adjustably displaceable manner and the fitting sleeve (4) is mounted in the pivot holder (9) in an adjustably displaceable manner to mount the fitting sleeve (4) in the fastening body (6) so that it can be adjustably displaced along the first direction (X) and the second direction (Y).

3. A pivot hinge (1) according to claim 2, characterized in that The pivot holder (9) is mounted in the fastening body (6) so as to be displaceable in an adjustable manner along a first direction (X), and the fitting sleeve (4) is mounted in the pivot holder (9) so as to be displaceable in an adjustable manner along a second direction (Y).

4. The pivot hinge (1) according to any one of claims 1 to 3, characterized in that The actuating device (15, 11, 4, 10) comprises a second actuating device (4, 10) which is configured to displace the fitting sleeve (4) along the second direction (7) and comprises at least one second actuating head (85) of the aforementioned actuating heads (84, 85), wherein this second actuating head (85) at least partially projects beyond the upper surface (81) so that a hand tool can engage therewith, and wherein the actuating head (85) comprises an upper surface (83) which also constitutes the upper surface (83) of the second actuating device (15, 11) and always remains at the same height above the upper surface (81) of the fastening body (6).

5. The pivot hinge of any one of claims 1 to 3, wherein, The top of the fastening body (6) is provided with one or more recesses (44) which are recessed relative to the upper surface (81), and the actuating heads (84, 85) are arranged partially in these one or more recesses (44).

6. The pivot hinge (1) according to any one of claims 1 to 3, characterized in that The actuating device (15, 11, 4, 10) comprises fastening devices (15, 11, 4, 10) which are displaceable in corresponding slots (51, 48) in order to displace the fitting sleeve (4) in an adjustable manner in the fastening body (6).

7. The pivot hinge of claim 6, wherein The actuating device (15, 11, 4, 10) is embodied as a screw (15, 4) and a nut (11, 10), wherein these nuts (11) and / or these screws (4) are designed as guide blocks (11, 4) which act as guides in corresponding fitting spaces (31, 45) in order to guide the displacement movement of the fitting sleeve (4) relative to the fastening body (6).

8. The pivot hinge of claim 2 or 3, wherein One or more surfaces (52) of the fastening body (6) and / or of the pivot holder (9) are provided with a structural undulation which clamps to one another by means of the fastening devices (15, 11) when the pivot holder (9) is fastened in the fastening body (6).

9. A pivot hinge (1) according to claim 7, characterised in that The actuating device (15, 10) comprises an adjustment sleeve (10) which is provided with an internal thread (59) and serves as the aforementioned actuating head (85) and the aforementioned nut (10), the fitting sleeve (4) is provided with a corresponding external thread (28) and serves as the aforementioned screw (4) and the aforementioned guide block (4) and for this purpose is fitted in the aforementioned fitting space (45), the pivot holder (9) is provided with the aforementioned slot (48) through which the fitting sleeve (4) is fastened to the adjustment sleeve (10) by the internal thread (59) and the external thread (28) engaging one another in such a way that the fitting sleeve (4) and the adjustment sleeve (10) can be displaced in an adjustable manner relative to the slot (48) in the pivot holder (9).

10. A pivot hinge (1) according to claim 9, characterized in that The fitting space (45) in the pivot holder (9) is provided with an inner collar (47) with which the fitting sleeve (4) engages when the fitting sleeve (4) is fastened in the pivot holder (9) by means of the adjusting sleeve (10).

11. A pivot hinge (1) according to any one of claims 1 to 3, characterised in that The fastening body (6) comprises a first longitudinal side configured to be arranged on a first side of the door leaf and a second longitudinal side configured to be arranged on a second side of the door leaf, and the actuating device (15, 10) is arranged centrally between the two longitudinal sides.

12. A pivot hinge (1) according to any one of claims 1 to 3, characterised in that The pivot (3) is provided with a permanent magnet (22) as the aforementioned magnetic element (22), and the insertion slot (5) is provided with a permanent magnet (77) as the aforementioned magnetic element (77).

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