CN210636956U

CN210636956U - Door leaf, rabbet door, invisible hinge bracket and invisible hinge

Info

Publication number: CN210636956U
Application number: CN201920111162.0U
Authority: CN
Inventors: 珍-路易斯·莫阿提; 安杰·布热津斯基; 帕韦尔·柯尼可热卡
Original assignee: Polsovt; European Moati Tool Machinery Co Ltd
Current assignee: Polsovt; European Moati Tool Machinery Co Ltd
Priority date: 2018-01-22
Filing date: 2019-01-22
Publication date: 2020-05-29
Anticipated expiration: 2029-01-22
Also published as: TR201900860U5; DE202019100302U1; FR3077085B1; FR3077085A1; PL72866Y1; PL127974U1

Abstract

The utility model relates to a door leaf, rabbet door, invisible hinge support and invisible hinge. The door leaf (31) comprises at least a first portion (311) and a second portion (312), said first portion (311) comprising a first fixed pivot (313) and a first sliding portion (314) for a first sliding pivot (315); the second portion (312) extends along a first axis (Y) with respect to the first portion (311), is adapted to be separated from the first portion (311), and is adapted to be connected to the first portion (311) on a second axis crossing the first axis.

Description

Door leaf, rabbet door, invisible hinge bracket and invisible hinge

Technical Field

The present disclosure relates to the field of invisible hinges, i.e. hinges arranged in a concealed manner in a closed position, and more particularly to invisible hinges for a rabbet door, i.e. for doors in which the door leaf exhibits at least one rabbet-bearing edge face, in such a way that, when the door leaf is in the closed position, the door leaf covers at least a portion of the perimeter of the door frame in the direction of opening the door. Thus, from one side of the door, the tongue-and-groove door overlaps and serves to hide the connection between the door leaf and the door frame, thereby improving the appearance, providing greater security against forced entry, and better thermal and acoustic insulation.

Background

In the disclosure of european patent application EP 2130997 a2, an invisible hinge for a rabbet door is disclosed by way of example. However, the hinge is not completely invisible when the door is closed, since the hinge bracket remains partially visible on the exposed part of the edge face of the door leaf. In particular, due to the complex geometry of the hinge, the hinge bracket may be very bulky and inserting the hinge bracket into a groove in the door leaf for receiving the hinge bracket requires that the open end of the groove extends beyond its tongue and groove over the edge face to the exposed part of the edge face. Although it can be envisaged a priori to cover the exposed portion of the edge face with a mask in order to hide the visible portion of the hinge support, this solution presents several drawbacks since it makes mounting and dismounting the hinge more complicated and since it can cause the mask to interfere with the door frame when opening the door.

Other invisible hinges for rabbet doors may remain completely invisible when the door is closed, but they only allow the door to swing within a limited angle.

SUMMERY OF THE UTILITY MODEL

The present invention aims to solve these drawbacks by proposing a support for an invisible hinge to provide a large swing and to enable it to be mounted in a first recess so that its opening to the outside does not extend beyond the rebate in the edge face of the door leaf of the rebate door, so as to ensure that the whole hinge is invisible when the door is closed.

In a first aspect, this object may be achieved by: the mounting of the hinge comprises at least a first step of inserting a first part of the invisible hinge support into a first groove in the door leaf of the rabbet door in the width direction of the door leaf, and a second step of moving the first part of the invisible hinge support in the first groove in the door leaf in the opening direction of the door leaf along the thickness axis of the door leaf. The first groove in the door leaf opens only into the tongue-and-groove of the edge face of the door leaf and widens beyond the opening in the opening direction of the door leaf in order to be able to carry out the second step of movement. The first portion of the hinge bracket has a first fixed pivot and a first slide for a first slide pivot to enable the invisible hinge to swing through a large angle.

With these arrangements, the first groove can accommodate a bracket of an invisible hinge providing a complex connection, in particular because it opens only into the tongue-and-groove of the edge face, but becomes wider beyond the opening in the opening direction of the door, enabling the door leaf to swing through large angles despite the overlapping of the door frames themselves and the hinge being invisible when the door is closed.

In order to hold the hinge bracket securely in the first groove, the mounting of the hinge may comprise the additional step of inserting the second part of the invisible hinge bracket into the first groove, which only opens into the tongue-and-groove of the edge face, with the insertion taking place along the width axis of the door leaf, until the first invisible hinge bracket part and the second invisible hinge bracket part are joined together inside the first groove in such a way that the second part extends in the direction opposite to the opening direction of the door leaf on the thickness axis of the door leaf in relation to the first part.

By dividing the bracket into two parts, the bracket can be mounted in a first recess which presents a narrower opening to the outside. Thus, the opening is wide enough to allow each of the two portions of the hinge bracket to pass through individually rather than the hinge bracket passing entirely through.

To accomplish the installation of the door leaf in the door frame, installing the invisible hinge may further include: the step of inserting a door frame fitting of the invisible hinge into a second groove of a door frame for an rabbet door, the door frame fitting also having a second fixed pivot and a second sliding portion for a second sliding pivot, and being connected to the bracket by a first angled arm extending from a first end connected to the second sliding portion of the door frame fitting by the second sliding pivot to a second end connected to the first fixed pivot of the bracket, and by a second angled arm extending from a third end connected to the second fixed pivot of the door frame fitting to a fourth end connected to the first sliding portion of the door frame fitting by the first sliding pivot, the first angled arm and the second angled arm being connected to each other by an intermediate pivot between the first end and the second end of the first angled arm and between the third end and the fourth end of the second angled arm, and the second recess in the door frame faces the first recess receiving the invisible hinge bracket when the bezel door is closed to hide the invisible hinge.

A second aspect of the present disclosure provides a door leaf for an rabbet door, the door leaf comprising: at least one tongue-and-groove edge surface, which has a first groove that opens only into the tongue-and-groove edge surface and that, outside the opening, widens in the opening direction of the door leaf; and a non-visible hinge bracket having at least a first portion with a first fixed pivot and a first slide for a first slide pivot. The first part of the invisible hinge bracket is received in a first groove, offset in the opening direction of the door leaf and in the thickness direction of the door leaf with respect to the opening of the first groove in the tongue-and-groove of the edge face. Thus, when the door is closed, the invisible hinge bracket may remain hidden in the tongue-and-groove of the edge face of the door leaf and not appear in the visible part of the edge face, despite the complex connection for enabling the door leaf to swing through large angles.

In order to securely fix the hinge bracket in the first groove, the invisible hinge bracket may further include a second portion extending in the first groove in the closing direction of the door leaf and along the thickness axis of the door leaf with respect to the first portion, and an opening of the tongue-and-groove of the first groove to the edge face may be narrower than the invisible hinge bracket on the thickness axis of the door leaf but wider than each of the divided first and second portions of the invisible hinge bracket. Thus, the first and second parts may be inserted continuously into the first recess through the opening using the method described above.

In order to provide better support for the two bracket parts in the first recess while limiting the relative clearance between them in at least one direction, the invisible hinge bracket may further comprise a connecting part having a complementary shape between its first and second parts. In particular, such a connection with complementary shape may be a dovetail connection along the thickness axis of the door leaf.

In order to facilitate the fixing of the invisible hinge bracket in the first recess in the edge face of the door leaf of the rabbet door, the second bracket portion may comprise fastening means for fastening the invisible hinge bracket, which may in particular comprise holes for screws. Thus, after inserting the first and second parts of the invisible hinge bracket one by one, the invisible hinge bracket may be fastened in the first groove. However, as an alternative, it is conceivable to incorporate the fastening means in the first part of the invisible hinge bracket. In this case, the second part of the invisible hinge bracket may be only in the form of a wedge for providing lateral support for the first part of the invisible hinge bracket, or it may even be envisaged that no second part is present.

A third aspect of the present disclosure provides a rabbet door adapted for including the door leaf described above, a doorframe having at least one non-visible hinged doorframe fitting, said doorframe fitting further having a second fixed pivot and a second sliding portion for the second sliding pivot, and first and second angled arms, each angled arm extending from a respective first or third end to a respective second or fourth end. For the invisible hinge bracket, the door frame fitting may include a second fixed pivot and a second sliding portion for the second sliding pivot, and when the bezel door is closed, the door frame fitting may be received in a second groove in the door frame facing the first groove receiving the invisible hinge bracket so as to hide the invisible hinge. The first end of the first angled arm may be connected to the second sliding portion of the door frame fitting by a second sliding pivot, and the second end of the first angled arm may be connected to the first fixed pivot of the invisible hinge bracket. The third end of the second arm may be connected to the second fixed pivot of the door frame fitting and the fourth end of the second arm may be connected to the first sliding portion of the hinge bracket by the first sliding pivot. The first and second angled arms may be connected to each other by an intermediate pivot between the first and second ends of the first angled arm and between the third and fourth ends of the second angled arm. Such invisible hinges can therefore be mounted in rabbet doors due to the complex connection of their angled arms, in such a way as to allow the door leaf to swing through large angles while completely hiding the hinge when the door is closed.

In particular, to provide such a connection, the first angled arm may be bent starting from its first end and extend along the opening direction of the invisible hinge at least at a first bend at its first end, at a second bend between its first and second ends and at a third bend at its second end, and the second angled arm may be bent starting from its third end and extend along the opening direction of the invisible hinge at least at a fourth bend at its third end and at a fourth end.

The fourth aspect of the utility model provides an invisible hinge support that is used for above-mentioned rabbet door leaf. The bracket may comprise at least a first part comprising a first fixed pivot and a first slide for a first slide pivot, and a second part extending along a first axis relative to the first part, adapted to be separated from the first part, and adapted to be connected to the first part on a second axis intersecting the first axis.

A fifth aspect of the present invention provides an invisible hinge for an opening door, the hinge possibly comprising the above-described bracket, door frame accessory and first and second angled arms, each angled arm extending from a respective first or third end to a respective second or fourth end. Like the invisible hinge bracket, the door frame fitting may include a second fixed pivot and a second sliding portion for a second sliding pivot. The end of the first angled arm may be connected to the second sliding portion of the door frame fitting by a second sliding pivot, and the second end of the first angled arm may be connected to the first fixed pivot of the invisible hinge bracket. The third end of the second arm may be connected to the second fixed pivot of the door frame fitting and the fourth end of the second arm may be connected to the first sliding portion of the hinge bracket by the first sliding pivot. The first and second angled arms may be connected to each other by an intermediate pivot between the first and second ends of the first angled arm and between the third and fourth ends of the second angled arm.

Drawings

The invention may be better understood and its advantages appear better when reading the following detailed description of embodiments, given as non-limiting examples. The description makes reference to the accompanying drawings, in which:

FIG. 1A is a perspective view of a bezel door in an open position;

FIG. 1B is a perspective view of the bezel door of FIG. 1A in a closed position;

FIG. 2A is a perspective view of an invisible hinge of the bezel door of FIG. 1A in an open position;

FIG. 2B is a perspective view of the same invisible hinge in the closed position;

FIG. 3A is a cross-sectional view on plane IIIA-IIIA of the invisible hinge of FIG. 2A in an open position;

FIG. 3B is a cross-sectional view on the plane IIIB-IIIB of the same invisible hinge in the closed position;

FIGS. 4A through 4F illustrate the steps of installing the same invisible hinge in a rabbet door;

FIG. 5 is a perspective view of a non-visible hinge in a first alternative embodiment; and

fig. 6 is a perspective view of a non-visible hinge in a second alternative embodiment.

Detailed Description

The door 100 may comprise a door frame 10, a door leaf 20 and an invisible hinge 30, said invisible hinge 30 connecting an edge face 21 of the door leaf 20 to the door frame 10 to allow the door leaf 20 to swing through a large angle α [ ALPHA ] with respect to the door frame 10. for example, the swing may be through an angle α [ ALPHA ] which may be up to 180 deg. although in the embodiment shown the door 100 has two invisible hinges 30 for connecting the edge face 21 to the door frame 10, the number of invisible hinges 30 may vary depending on the size of the door 100. therefore, it is envisaged to have three invisible hinges 30, or indeed more invisible hinges 30, for connecting the edge face 21 to the door frame 10, or indeed only one invisible hinge 30.

As in the illustrated embodiment, the door 100 may be a rabbet door. Thereby, at least one edge face 21 in which the invisible hinge 30 is mounted may present a tongue-and-groove 211 forming a first surface 212 and a second surface 213, the first surface 212 and the second surface 213 intersecting, for example, at right angles, the first surface 212 possibly extending along the thickness axis Y of the door leaf 20 and the second surface 213 possibly extending along the width axis X of the door leaf 20, such that the joint of the door between the edge face 21 and the door frame 10 is covered in the opening direction of the door 100 when the door is closed, as shown in fig. 1B. The other edge faces of the door leaf 20 may present similar tongue and groove. Thus, as an example, and as also shown in fig. 1A and 1B, the top edge face 22 and the side edge face 23 distant from the hinge 21 in the width direction of the door leaf 20 may present similar tongue-and-groove, so that when the door is closed, the entire joint of the door between the door 20 and the door frame 10 is covered in the opening direction of the door 100, as shown in fig. 1B.

As shown in more detail in fig. 2A and 2B, each invisible hinge 30 may include a bracket 31, a doorframe fitting 32, and two

angled arms

33, 34 connecting the bracket 31 to the doorframe fitting 32. The bracket 31 may be designed to be received in the first groove 24 in the edge face 21, and the bracket 31 may comprise a first part 311 and a second part 312.

The first portion 311 of the hinge bracket 31 may include a first fixed pivot 313 and a pair of first sliding portions 314, the pair of first sliding portions 314 being adapted to receive opposite ends of a pin of the first sliding pivot 315, the first fixed pivot 313 and the first sliding pivot 315 may have pivot pins parallel to each other, the pivot pins parallel to each other being perpendicular to the width direction X and the thickness direction Y of the door leaf 20, as shown in fig. 2A to 3B, the first sliding portions 314 may be perpendicular to the pivot pins of the first sliding pivot 315, and may be inclined, for example, at an angle β [ BETA ] in the range of 0 to 30 ° with respect to the X direction in the opening direction of the door 100.

With respect to the first portion 311, the second portion 312 may extend along the thickness axis of the door leaf 20 in a direction opposite to the opening direction of the door 100, so as to be adapted to be separated from the first portion 311, and also so as to be adapted to be engaged to the first portion 311 by moving along the width axis X of the door leaf 20. For this purpose, the bracket 31 may comprise a coupling portion having a complementary shape, such as a dovetail coupling portion 316 as shown in fig. 2A, said dovetail coupling portion 316 being directed along the width axis X of the door frame 20 and being adapted to couple said first portion 311 and second portion 312 together. However, it is also conceivable to omit such a connection with a complementary shape, in an alternative embodiment as shown in fig. 5, in which the other elements are identical to those of the invisible hinge 30 shown in fig. 2A to 3B and therefore the same reference is given.

The second portion 312 may also comprise means for fastening the bracket 31 to the door leaf 20, such as lugs 317 in the embodiment shown in fig. 2A to 3B, connection holes 318 for receiving fastening screws 319. However, it is also conceivable to provide the means for fastening the bracket 31 of the hinge 30 to the door leaf 20 on the first portion 311 of the bracket 31, as in the alternative embodiment shown in fig. 6, wherein a lug 317 with a hole 318 for receiving a fastening screw 319 is located on the first portion of the bracket 31. In this case, the second portion 312 of the bracket 31 may simply be a

wedge

312a, 312b, said

wedge

312a, 312b serving to stabilize the bracket 31 in the first groove 24 without interfering with the operation of the

arms

33, 34, as shown, or may even be omitted entirely. The other elements are identical to those of the invisible hinge 30 shown in fig. 2A to 3B and 5, and are therefore given the same reference numerals.

Returning to fig. 2A-3B, first groove 24 may be accessible through opening 241, which leads only to bezel 211, so as to be hidden when the door is closed. As shown in fig. 3A, along the thickness axis Y of the door leaf 20, the opening 241 may in particular exhibit a width L_OThe width L_OLess than the total width L of the bracket 31 of the invisible hinge 30_TBut are respectively greater than the width L of the first 311 and second 312 portions of the support 31 in the same direction Y₁、L₂Each of which. Outside the opening 241, towards the inside of the door leaf 20, the first groove 24 may become larger up to not less than the total width L of the bracket 31_TWidth L of_E. The shape of the first recess 24 thus makes it possible for the first portion 311 and the second portion 312 of the support 31 to be inserted one after the other on the axis X through the opening 241, in order to accommodate the entire support 31 in this first recess 24, while maintaining the distance D along the axis X between the first recess 24 and the portion 215 of the edge face 21 beyond the rebate 211, this portion 215 remaining visible when the door 100 is closed.

As shown, the doorframe fitting 32 may also have a second fixed pivot 321 and a pair of second sliding portions 322, the pair of second sliding portions 322 being adapted to receive opposite ends of the pin of the second sliding pivot 323. The second fixed pivot 321 and the second sliding pivot 323 can also have mutually parallel pivot pins that are perpendicular to the X-axis and the Y-axis. As shown in fig. 3A and 3B, the second sliding portion 322 may be perpendicular to the second sliding pivot pin 323, and may be inclined, for example, at an angle γ [ gama ] in the range of 0 to 30 ° with respect to the X axis in the closing direction of the door 100 when the door 100 is closed. In addition, the door frame fitting 32 may be designed to be received in a second recess 11 in the door frame 10, the second recess 11 facing the first recess 24 when the door 100 is closed and comprising means for fastening to the door frame 10, such as in the embodiment shown a lug 324 with a hole 325 for receiving a fastening screw 326.

As shown, the first angled arm 33 may present two parallel branches 33a and 33b, each extending from a first end 331 to a second end 332 of the angled arm 33, the arms being spaced apart from each other along the direction of the pivot pin, the first end 331 may be connected to the second sliding portion 322 of the door frame fitting 32 by a second sliding pivot 323, and the second end 322 may be connected to the first fixed pivot 313 of the bracket 31, starting from the first end 331 of the first angled arm 33, the first angled arm 33 may present at least a first bend 333, a second bend 334 and a third bend 335 in the opening direction of the invisible hinge 30, the first bend 333 may be particularly located at the first end 331 of the first angled arm 33, the second bend 334 is located between the first end 331 and the second end 332 of the first angled arm 33, and the third bend 335 may be located at the second end 332 of the first angled arm 33, the sum of the angles of the first bend 333, the second bend 334 and the third bend 335 in the opening direction of the door 100 may be greater than the angle of the door frame 20 may swing through the angle ALPHA α.

As shown, the second angled arm 34 may be located between the two parallel branches 33a and 33b of the first angled arm 33 and may extend from a third end 341 to a fourth end 342, said third end 341 may be connected to the second fixed pivot 321 of the door frame fitting 32, said fourth end 342 may be connected to the first sliding part 314 of the hinge bracket 31 by a first sliding pivot 315, starting from the third end 341 of the second angled arm 34, the second angled arm 34 may present at least a fourth bend 343 and a fifth bend 344 in the opening direction of the invisible hinge 30, the sum of the angles of the fourth bend 343 and the fifth bend 344 in the opening direction of the door may likewise be larger than the angle α [ ALPHA ] through which the door leaf 20 may swing with respect to the door frame 10, the first angled arm 33 and the second angled arm 34 may also be connected to each other by an intermediate pivot 35 located between the first end 331 and the second end (332) of the first angled arm 33 and the third end (341) of the second angled arm 34, more specifically the intermediate pivot 35 may extend the third angled arm 34, the third angled arm 345 may be connected to the fourth angled arm 34, the fourth angled extension 343, the fourth angled arm 34 may extend beyond the third end 341 and the fourth angled arm 345.

In operation, when opening the door 100, the first angled arm 33 may pivot about the second slide pivot 323 in the opening direction of the door 100, and the second slide pivot 323 may slide in its second slide portion 322 towards the outside of the doorframe fitting 32. Meanwhile, the hinge bracket 31 may also pivot in the opening direction of the door 100 above the first fixed pivot 313 with respect to the first angled arm 33. The second angled arm 34 can also pivot about the second fixed pivot 321 in the opening direction of the door 100, while the bracket 31 can pivot in the same direction about the first sliding pivot 315, while the first sliding pivot can slide in its first sliding portion 314 towards the outside of the bracket 31. The intermediate pivot 35 may maintain the connection between the two

angled arms

33 and 34 while allowing them to pivot relative to each other. The same action is reversed during the closing of the door 100.

Each invisible hinge 30 may be installed using the method shown in fig. 4A to 4E. In a first step of the method, as shown in fig. 4A, the first portion 311 of the hinge bracket 31 may be inserted into the first groove 24 through the opening 241 along the width axis X of the door leaf 20. In a second step, as shown in fig. 4B, the first portion 311 of the hinge bracket 31 can move within the first groove 24 along the thickness axis Y of the door leaf 20 in the opening direction of the door 100, so as to release the opening 241 for a third step, as shown in fig. 4C, of inserting the second portion 312 into the first groove 24 along the axis X through this same opening 241. During this insertion, the movement of this second portion 312 along the axis X with respect to the first portion 311 can be used to connect the two

portions

311 and 312 together by means of a connection having a complementary shape (when such a connection is present, for example a dovetail connection 316). After this insertion, in a fourth step, the entire bracket 31 of the invisible hinge 30 can be fixed to the door leaf 20 using the fastening means present on the second portion 312, as shown in fig. 4D, for example fastening screws 319 passing through holes 318 in the lugs 317 of the second portion 312. However, if the fastening means are located on the first portion 311 of the hinge bracket 31, as in the embodiment shown in fig. 6, it is also possible to fasten the first portion 311 to the door leaf 20 before inserting the second portion 312 into the first groove 24, wherein the first groove 24 is only wedged by pressing against the first portion 311.

In the other two steps of installing the invisible hinge 30, which may be performed before or after installing the bracket 31 of the invisible hinge 30 in the first recess 24, the door frame fitting 32 may be inserted into the second recess 11 of the door frame 10 as shown in fig. 4E, and may be fixed to the door frame 10 using a fastening means, for example, as shown in fig. 4F, a fastening screw 326 passes through a hole 325 in the lug 324 of the door frame fitting 32.

Although the invention has been described with reference to specific embodiments, it will be evident that various modifications and changes may be made to these embodiments without departing from the general scope of the invention as defined in the claims. Furthermore, various features of the various embodiments mentioned may be combined in further embodiments. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Claims

1. A door leaf, the door leaf (20) being for a rabbet door (100), characterized in that the door leaf comprises at least:

-an edge face (21) with a tongue-and-groove (211), the edge face (21) having a first groove (24), the first groove (24) opening only into the tongue-and-groove (211) of the edge face (21) and expanding beyond an opening (241) of the first groove (24) in an opening direction of the door leaf (20); and

-a non-visible hinge bracket (31), the non-visible hinge bracket (31) having at least a first portion (311) with a first fixed pivot (313) and a first sliding portion (314) for a first sliding pivot (315);

the first portion (311) of the invisible hinge bracket (31) is received in the first groove (24) and is offset in the opening direction of the door leaf (20) and along the thickness axis (X) of the door leaf (20) with respect to the opening (241) of the first groove (24) in the tongue-and-groove (211) of the edge face (21).

2. Door leaf according to claim 1, characterized in that the invisible hinge bracket (31) further comprises a second portion (312), the second portion (312) extending in the first groove (24) along the thickness axis (X) of the door leaf (20) in the closing direction of the door leaf (20) relative to the first portion (311), the opening (241) of the first groove (24) to the tongue-and-groove (211) of the edge face (21) being narrower than the invisible hinge bracket (31) along the thickness axis (X) of the door leaf (20) but wider than each of the separated first and second portions (311, 312) of the invisible hinge bracket (31).

3. Door leaf according to claim 2, characterised in that the invisible hinge bracket (31) further comprises a connection having a complementary shape between the first part (311) and the second part (312) of the invisible hinge bracket (31).

4. -the door leaf according to claim 3, characterized in that the connection with complementary shape is a dovetail connection (316) oriented along the thickness axis (X) of the door leaf (20).

5. Door leaf according to any of claims 2 to 4, characterized in that the second part (312) comprises fastening means for fastening the invisible hinge bracket (31).

6. Door leaf according to claim 5, characterised in that the fastening means comprise holes (318) for screws (319).

7. A bezel door, characterized in that said bezel door (100) comprises:

-a door leaf (20) according to any of claims 1 to 6;

-a door frame (10), the door frame (10) having at least one door frame fitting (32) of a non-visible hinge (30), the door frame fitting (32) further comprising a second fixed pivot (321) and a second sliding portion (322) for a second sliding pivot (323);

-a first angled arm (33), the first angled arm (33) extending from a first end (331) to a second end (332), the first end (331) being connected to a second sliding part (322) of a door frame fitting (32) by a second sliding pivot (323), the second end (332) being connected to a first fixed pivot (313) of a non-visible hinge bracket (31); and

-a second angled arm (34), the second angled arm (34) extending from a third end (341) connected to a second fixed pivot (321) of the door frame fitting (32) to a fourth end (342) connected to a first sliding part (314) of the invisible hinge bracket (31) by a first sliding pivot (315); and

wherein the first angled arm (33) and the second angled arm (34) are connected to each other by an intermediate pivot (35), the intermediate pivot (35) being located between the first end (331) and the second end (332) of the first angled arm (33) and between the third end (341) and the fourth end (342) of the second angled arm (34), and when the aperture door (100) is closed, the door frame fitting (32) is received in a second recess (11) in the door frame (10), the second recess (11) facing the first recess (24) receiving the invisible hinge bracket (31) so as to hide the invisible hinge (30).

8. The rabbet door of claim 7, wherein the first angled arm (33) is bent from the first end (331) of the first angled arm (33) and extends in the opening direction of the invisible hinge (30) at least at a first bend (333), at a second bend (334) and at a third bend (335), the first bend (333) being located at the first end (331) of the first angled arm (33), the second bend (334) being located between the first end (331) and the second end (332) of the first angled arm (33), the third bend (335) being located at the second end (332) of the first angled arm (33), and the second angled arm (34) being bent from the third end (341) of the second angled arm (34) and at least at a fourth bend (343) and the fourth end (342) being located at the third end (341) of the second angled arm (34) See the opening direction extension of the hinge (30).

9. -invisible hinge bracket, characterized in that the invisible hinge bracket (31) is for a door leaf (20) for an rabbet door (100) according to any of claims 1 to 6, said invisible hinge bracket (31) comprising at least:

-a first part (311), the first part (311) comprising a first fixed pivot (313) and a first sliding portion (314) for a first sliding pivot (315); and

-a second portion (312), said second portion (312) extending along a first axis (Y) with respect to said first portion (311), being adapted to be separated from said first portion (311), and being adapted to be connected to the first portion (311) on a second axis crosswise to the first axis.

10. A non-visible hinge, the non-visible hinge (30) for a bezel door (100), the non-visible hinge comprising:

-a non-visible hinge bracket (31) according to claim 9;

-a door frame fitting (32), the door frame fitting (32) further comprising a second fixed pivot (321) and a second sliding portion (322) for a second sliding pivot (323);

-a second angled arm (34), the second angled arm (34) extending from a third end (341) connected to a second fixed pivot (321) of the door frame fitting (32) to a fourth end (342) connected to a first sliding part (314) of the invisible hinge bracket (31) by a first sliding pivot (315); and is

Wherein the first angled arm (33) and the second angled arm (34) are connected to each other by an intermediate pivot (35), said intermediate pivot (35) being located between the first end (331) and the second end (332) of the first angled arm (33) and between the third end (341) and the fourth end (342) of said second angled arm (34).