WO2020083751A1

WO2020083751A1 - Rotary attachment accessory

Info

Publication number: WO2020083751A1
Application number: PCT/EP2019/078285
Authority: WO
Inventors: Bernard Proot
Original assignee: Goodwin International
Priority date: 2018-10-22
Filing date: 2019-10-17
Publication date: 2020-04-30
Also published as: FR3087506A1; FR3087506B1; EP3870866A1

Abstract

The attachment accessory (2E) includes one or more anchoring elements (21E) projecting at the periphery of the attachment accessory. It is suitable for being inserted completely or partially in a groove or an opening (40) of the part (4') and for being attached in the groove or opening by rotation of the attachment accessory on itself about an axis of rotation (A), such that each anchoring element (21E) penetrates into the material of at least one side wall (40b) partially defining the groove or opening (40).

Description

ROTARY FIXING ACCESSORY

Technical area

The present invention relates to the field of fixing accessories, which are intended to be inserted and fixed in an oblong groove or opening of a part and which allow in particular to fix an element attached to said part or to fix said part to another element. . It finds its application in many fields, in particular in all the fields in which parts are used comprising a groove or an oblong opening and made of materials which allow penetration by screwing, nailing or incision, for example wooden parts, MDF type wood fibers, chipboard, plywood or composite materials. In a non-exhaustive manner, the fixing accessory of the invention can be used in the field of decoration or interior design, in the field of furniture, or in the field of interior or exterior renovation, for example. example for the manufacture of frames, and in particular of door or window frame frames.

Prior art

There are many applications using parts comprising a groove or an oblong opening, such as for example profiles, boards or blades, of wood or the like, of which a groove or an oblong opening is used to assemble this part with another part by means of an assembly element, for example by means of an assembly bracket, or a groove or an opening of which can be used to fix an added element.

For example, in international patent application WO2014 / 057216, a solution for assembling profiles at right angles by means of an assembly bracket has been described, and its application to manufacturing. of frames and in particular of frames of doorways or windows.

Objective of the invention

The main objective of the invention is generally to provide a new fixing accessory, which is adapted to be inserted and fixed simply, quickly and robustly in an oblong groove or opening (through or blind) of a room.

More particularly, the invention aims more particularly to propose a new fixing accessory which is adapted to be inserted and fixed in a simple, quick and robust manner in a groove or an oblong opening of a part, to any longitudinal position along said groove or oblong opening.

This fixing accessory can for example be used to fix an element attached to said part or to fix said part to another element, and for example to a wall and in particular to a vertical wall such as a wall.

Summary of the invention

The subject of the invention is therefore a fixing accessory for a part comprising a groove or an oblong opening; said fixing accessory comprises one or more anchoring elements projecting at the periphery of the fixing accessory; said fixing accessory is able to be inserted in whole or in part in said groove or oblong opening of the part and to be fixed in said groove or oblong opening, by rotation of the fixing accessory on itself around an axis of rotation (A), so that each anchoring element penetrates into the material of at least one side wall partially defining said groove or oblong opening.

In this text, the term "groove" should be taken in its most general acceptance as being a notch in a piece that is longer than it is wide and deep, and regardless of the manufacturing method used to make the groove in the piece. The groove can for example be produced by machining the part and removing material or can for example be obtained directly at the outlet of the extrusion die when the part is extruded.

In the present text, the term “oblong opening” means an elongated opening which is longer than wide. Within the general framework of the invention, this "oblong opening" can either be through or non-through.

Preferably, but not necessarily and without limitation of the invention, the slot or oblong opening of the part is rectilinear over at least part of its length, and even more preferably over its entire length. The invention can nevertheless be implemented with a curved oblong groove or opening, and in particular an oblong groove or opening has a large radius of curvature relative to the dimensions of the fixing accessory.

More particularly, the fixing accessory of the invention may include the following additional and optional characteristics, taken in isolation, or in combination with each other:

- It comprises two anchoring elements protruding at the periphery of the fixing accessory and diametrically opposite with respect to the axis of rotation of the fixing accessory, with or without axial offset between the two anchoring elements in the direction of the axis of rotation (A).

- The two anchoring elements are identical and symmetrical to each other with respect to the axis of rotation of the fixing accessory.

- It only has two diametrically opposite anchoring elements relative to the axis of rotation (A) of the fixing accessory.

- It comprises, on the front and projecting surface, a first element for locking in rotation, which is able to cooperate with a second element for locking in rotation, in particular of the locking ring type, which is nestable on the first locking element in rotation when the fixing accessory is fixed by means of each anchoring element in an oblong groove or opening, and which, a once fitted onto the first rotation locking element, allows the fixing accessory to rotate in rotation with respect to the second rotation locking element, around the axis of rotation and in both directions of rotation.

It comprises on the front face an elastically deformable assembly means, of the elastic clip type.

It comprises main body, preferably a main body forming all or part of a cylinder centered on the axis of rotation (A), and each anchoring element is oriented substantially radially with respect to the main body, and has a tapered edge and curve facilitating said penetration of the anchoring element into the material of at least one side wall partly defining said groove or oblong opening. the curved tapered edge of each anchoring element comprises at least one portion in the form of an arc of a circle, the center of which is positioned on the axis of rotation or close to the axis of rotation.

It comprises a main body, preferably a main body forming all or part of a cylinder centered on the axis of rotation (A), and each anchoring element is constituted by a thin lug in the shape of an isosceles triangle, which is oriented substantially radially with respect to the main body, the base of which is situated at the level of the main body and the apex of which forms an edge facilitating said penetration of the anchoring element into the material of at least one side wall partially delimiting said groove or oblong opening.

It comprises a main body, preferably a main body forming all or part of a cylinder centered on the axis of rotation; the main body has in cross section a profile which is non-circular, which is symmetrical with respect to the axis of rotation (A), which is preferably circumscribed in a square, and which defines two extreme positions in rotation of the accessory fastener inserted in an oblong groove or opening, i.e. an extreme position of insertion in the oblong groove or opening, in which the main body of the fixing accessory can be turned on itself, preferably by a quarter of a turn, around the axis of rotation, in a first direction of rotation, and a second extreme anchoring position, in which each element anchor has fully or partially penetrated into the material of at least one side wall partially delimiting the oblong groove or opening, and in which the cylindrical body of the fixing accessory can be turned on itself, preferably a quarter turn, around the axis of rotation in said second direction of rotation, but is locked in rotation around the axis of rotation in said first direction of rotation, by two side walls, facing each other screw one from the other, delimiting the groove or oblong opening.

- It comprises a main body, preferably a main body wholly forming a cylinder centered on the axis of rotation (A); the cylindrical body has in cross section a profile which is non-circular, which is symmetrical with respect to the axis of rotation, which is preferably circumscribed in a square, and which defines two extreme positions in rotation of the inserted fixing accessory in an oblong groove or opening, i.e. an extreme position of insertion in the groove or opening, in which the main body of the fixing accessory can be turned on itself, preferably by a quarter of a turn, around of the axis of rotation (A), in a first direction of rotation, but is locked in rotation around the axis of rotation (A) in a second direction of reverse rotation, by two side walls, facing each other screw of one another, delimiting the groove or opening, and a second extreme anchoring position, in which each anchoring element has penetrated in whole or in part into the material of at least one lateral wall delimitan t partly the oblong groove or opening, and in which the main body of the fixing accessory can be turned on itself, preferably by a quarter of a turn, around the axis of rotation (A) in said second direction of rotation.

- It comprises a main body, preferably a main body forming in all part a cylinder centered on the axis of rotation (A); the main body has in cross section a profile which is non-circular, which is symmetrical with respect to the axis of rotation (A), which is preferably circumscribed in a square, and which defines two extreme positions in rotation of the accessory fastener inserted in an oblong groove or opening, i.e. an extreme position of insertion in the oblong groove or opening, in which the main body of the fastening accessory can be turned on itself, preferably by a quarter in turn, around the axis of rotation (A), in a first direction of rotation, but is locked in rotation around the axis of rotation (A) in a second direction of reverse rotation, by two side walls, in opposite each other, delimiting the oblong groove or opening, and a second extreme anchoring position, in which each anchoring element has penetrated in whole or in part into the material of at least one side wall delimiting in part of the slot or oblong opening, and in which the main body of the fixing accessory can be turned on itself, preferably by a quarter of a turn, around the axis of rotation (A) in said second direction of rotation, but is locked in rotation about the axis of rotation (A) in said first direction of rotation, by two side walls, facing each other, delimiting the groove or oblong opening .

The cross-sectional profile of the main body makes it possible to rotate on itself around the axis the fixing accessory by a quarter of a turn between said extreme insertion position and said extreme anchoring position.

The main body is a cylindrical body centered on the axis of rotation (A) and has a lateral face formed by two parts which are identical and symmetrical to each other with respect to the axis of rotation, each part of the face. lateral of the cylindrical body comprising a first flat rectilinear portion, a second flat rectilinear portion oriented perpendicular to the first flat rectilinear portion, and a third curved flat portion, preferably in the form of a quarter of a circle, which connects the first straight rectilinear portion to the second straight rectilinear portion.

The fixing accessory is able to be fixed in an oblong groove or opening, by means of each projecting anchoring element, by rotation of the fixing accessory on itself by a quarter of a turn. The anchoring element or elements are capable of driving the fixing accessory in translation in the direction of the axis of rotation and towards the inside of the groove, or oblong opening, in the manner of a helical thread, at during the rotation on itself of the fixing accessory inserted in a groove, or oblong opening with penetration of each anchoring element in the material of at least one side wall.

On the rear side, it has a projecting point centered on the axis of rotation.

at least each anchor is made of metal or metal alloy. It further comprises a through hole or blind hole, suitable for being used to rotate the fixing accessory on itself around its axis of rotation.

Said hole comprises at least two notches diametrically opposite with respect to the axis of rotation and allowing the insertion and the blocking in said hole of a suitable tool which can be used to force rotate said fixing accessory.

Said hole is a threaded hole having a cylindrical thread.

It comprises a main body, preferably a main body wholly forming a cylinder centered on the axis of rotation (A); each anchoring element projects from the periphery of said main body, in which each anchoring element adjoins the rear face of said main body, and preferably comprises a rear face situated in the extension of the rear face of said main body.

It has a main body, preferably a main body forming in all part a cylinder centered on the axis of rotation (A); each anchoring element projects from the periphery of said main body, and in which the axial distance (D) between each anchoring element and the rear face of the fixing accessory is less than half of the maximum axial dimension of the main body and / or is less than or equal to 3mm, preferably less than or equal to 2mm, and more preferably is zero.

It comprises a main body, preferably a main body wholly forming a cylinder centered on the axis of rotation (A); each anchoring element projects from the periphery of said main body, and in which the maximum dimension (H) of said main body, measured in the direction of the axis of rotation (A), is less than or equal to 5mm, and preferably less than or equal to 3mm.

It comprises a main body, preferably a main body wholly forming a cylinder centered on the axis of rotation (A); each anchoring element protrudes at the periphery of said main body, said fixing accessory further comprising a fixing element, which forms a single piece with the main body by being at least partially projecting from this main body , or which is assembled or is capable of being assembled with the main body so as to be at least partially projecting with respect to this main body.

The fixing element is a plate forming a fixing lug or a square or a hook.

The fixing element is oriented transversely, and preferably substantially perpendicular to the axis of rotation (A) of the fixing accessory.

The fixing element is positioned or is capable of being positioned on the front face of the fixing accessory.

The fastener has a through hole in its portion projecting from the main body. - The fastening element has a maximum thickness (E) which is less than the maximum axial dimension (H) of the main body.

- The fixing element has a maximum thickness (E) which is less than or equal to 2mm.

The subject of the invention is also an assembly comprising a aforementioned fixing accessory comprising said threaded hole and at least one threaded fixing element, in particular a fixing screw, or an added element comprising a threaded fixing element, said threaded fixing element being able to be screwed into the threaded hole of the fixing accessory.

The invention also relates to an assembly comprising at least one piece comprising a groove or an oblong opening, and at least one fixing accessory mentioned above, said fixing accessory being able to be inserted into said groove, or oblong opening of the piece and to be fixed in said groove or oblong opening, by rotation of the fixing accessory on itself around an axis of rotation, so that each anchoring element penetrates into the material of at least one wall lateral partially defining said groove or opening.

More particularly, the whole of the invention may include the following additional and optional characteristics, taken individually, or in combination with one another:

- It further comprises a locking element in rotation, of the ring type, which is nestable on the fixing accessory, and which once fitted on the fixing accessory allows a locking in rotation of the fixing accessory, around of the axis of rotation and in both directions of rotation.

- It further comprises at least one insert, provided with at least one oblong through hole or a through oblong hole which allows its fixing with said part by means of at least said fixing accessory, passed through said light or said hole, and fixed in said groove or oblong opening of the part by means of each anchoring element. - It comprises at least them parts each comprising a groove or an oblong opening, at least two aforementioned fixing accessories, and at least one connecting element, which is provided with at least two oblong through holes or oblong through holes, and which can be fixed with the two parts by means of the two fixing accessories passed respectively through the holes or openings of the assembly elements, and fixed in the groove or oblong opening respectively of the two parts.

- The added element or assembly element is an assembly angle.

- It makes it possible to manufacture a frame, and in particular a frame for a door or window embrasure, and comprises at least three elongated parts, and preferably four elongated parts, each comprising a groove, one or an oblong opening, at least two brackets assembly, and preferably four assembly brackets, each provided with at least two oblong through holes or oblong through holes, and at least four fixing accessories, and preferably at least eight fixing accessories.

The fixing accessory comprises a through hole or blind hole which is threaded and said assembly comprises at least one threaded fixing element, in particular a fixing screw, or an added element comprising a threaded fixing element, said threaded fixing element, being able to be screwed into the threaded hole of the fixing accessory.

- It comprises an insert capable of being fitted resiliently onto said fixing accessory.

- the depth (P) of the groove or the opening of the part is less than or equal to 6mm, preferably less than or equal to 3mm.

- The fixing element of the fixing accessory is at least partially projecting from the part, when the fixing accessory is inserted and anchored in the groove or oblong opening of said part by means of each anchoring element.

At least the side walls delimiting said groove or said opening in the part, and preferably the whole part, is made of a softer material than the material constituting the anchoring element or elements.

- At least the side walls delimiting said groove or said opening in the room, and preferably the whole room, is in a material selected from the materials in the following list: wood, wood fibers of MDF type, chipboard, plywood, material composite.

The subject of the invention is also a method of fixing an accessory for fixing an aforementioned assembly in a groove or an oblong opening of a part of said assembly, said method comprising the following successive steps:

- all or part of the fixing accessory is inserted into the groove or the opening of the part, so that each projecting anchoring element is entirely positioned in the groove or the opening of the part;

- The fixing accessory is fixed in the groove or the opening of the part, by rotating it in whole or in part on itself, preferably by a quarter turn, so that each anchoring element projecting into the material of a side wall partially defining said groove or opening.

More particularly, the method of the invention may include the following additional and optional characteristics:

- All or part of the attachment accessory is inserted between two side walls, facing each other, delimiting the oblong opening groove of the part, so that each anchoring element in projection is fully positioned in the groove or oblong opening of the part and the main body of the fixing accessory can be turned on itself around the axis of rotation in a first direction of rotation, and is preferably locked in rotation, by said side walls, around the axis of rotation in the second direction of reverse rotation,

- The fixing accessory is fixed in the groove or the oblong opening of the part, by rotating the main body on itself, preferably by a quarter of a turn, so that each anchoring element in protrusion penetrates into the material of a side wall partially delimiting said oblong groove or opening and up to an extreme anchoring position, in which each anchoring element has fully or partially penetrated into the material of at least one side wall, and in which the main body of the fixing accessory can be turned on itself around the axis of rotation in said second direction of rotation, but is locked in rotation, by said side walls, around the axis of rotation in said first direction of rotation.

More particularly, the method of the invention may include the following additional and optional characteristics, taken individually, or in combination with one another:

- The rotation on itself of the fixing accessory inserted in a slot or oblong opening, with penetration of each anchoring element) in the material of at least one side wall, causes the translation of the fixing accessory in the direction of the axis of rotation and towards the inside of the slot or oblong opening.

- The fixing accessory is locked in rotation, which is fixed in the groove or the opening of the part by means of each anchoring element, by fitting a locking element in rotation on said fixing accessory, so that once fitted onto said fixing accessory, this rotation locking element is locked in rotation by the part around the axis of rotation of the fixing accessory in both directions of rotation, and the fixing accessory is locked in rotation by said locking element rotating around the axis of rotation of the fixing accessory and in both directions of rotation.

- We attach an element attached to the fixing accessory fixed in the groove, or the opening of the part.

- An attached element is fixed to said part by first passing the fixing accessory through said added element and by fixing the fixing accessory in the groove or the opening of the part by means of each anchoring element.

- Preferably, at least the side walls delimiting said groove or said oblong opening in the part, and preferably the whole part, is in a softer material than the material constituting the anchoring element (s) and / or in which at minus the side walls delimiting said groove or said opening in the room, and preferably the whole room is made of a material selected from the materials in the following list: wood, wood fibers of MDF type, chipboard, plywood, composite material.

- A part of the fixing accessory is used to fix said part to another element, and in particular to a wall, in particular a vertical wall.

The subject of the invention is also a use of the attachment accessory for an aforementioned assembly for attaching an insert to said part of said assembly.

Another subject of the invention is the use of the attachment accessory for a set mentioned above for fixing said piece of said set to another element, and in particular to a wall, and more particularly to a vertical wall.

Brief description of the figures

The characteristics and advantages of the invention will appear more clearly on reading the detailed description below of several particular variant embodiments of a fixing accessory of the invention, which particular variant embodiments are described below. non-limiting and non-exhaustive examples of the invention, and with reference to the appended drawings in which:

- Figure 1 is an isometric view of an assembly comprising a rotary fixing accessory, according to a first embodiment of the invention, a screw associated with this fixing accessory, and a key that can be used for rotation on itself of the fixing accessory;

- Figure 2 is an isometric rear view of the fixing accessory of Figure 1;

- Figure 3 is a sectional view of the fixing accessory of Figure

1;

- Figures 4 to 7 show the main steps of fixing the fixing accessory of Figure 1 in a groove of a long piece;

- Figure 8 is a sectional view showing the fixing accessory of Figure 1 fixed in a part having a U-shaped groove.

- Figures 9 to 1 1 show three examples of using fixing accessories of Figure 1 to perform the assembly, end to end of two pieces by means of an assembly bracket;

- Figures 12 and 13 show two other examples of the use of fixing accessories of Figure 1, to perform the assembly, end to end and at right angles to two parts by means of an assembly bracket;

- Figure 14 shows another example of the use of fixing accessories of Figure 1, to carry out the assembly, end to end and at right angles of two parts by means of two assembly brackets;

- Figure 15 is an isometric view of a second alternative embodiment of a fixing accessory of the invention;

- Figure 16 shows an example of using a fixing accessory identical to that of Figures 16, to fix an assembly bracket to a slender piece;

FIG. 17 is an isometric view of an assembly comprising a rotary fixing accessory, in accordance with a third variant embodiment of the invention, and a screw associated with this fixing accessory;

Figure 18 is an isometric rear view of the fixing accessory of Figure 17;

Figure 19 an isometric view of a fourth alternative embodiment of a fixing accessory of the invention;

Figures 20 to 22 show an example of use of the fixing accessory of Figure 19,

FIG. 23 is an isometric view of an assembly comprising a rotary fixing accessory, in accordance with a fifth alternative embodiment of the invention, and a ring for locking in rotation of this fixing accessory;

Figures 24A to 24D illustrate the main steps of an example of implementation of the fixing accessory of Figure 23;

FIGS. 25A, 25B and 25C are schematic representations corresponding respectively to FIGS. 24A, 24B and 24C;

Figure 26 is an isometric view of a sixth alternative embodiment of a rotary fixing accessory, according to the invention; Figure 27 is a cross-sectional view showing a part with an oblong groove or open, fixed to another element, such as for example a vertical wall, by means of the fixing accessory of Figure 26;

Figures 28 to 30 show the main stages of implementation of the fixing accessory of Figure 26 to fix the part of Figure 27 to another element, such as for example a vertical wall;

Figure 31 is an isometric view of a seventh alternative embodiment of a rotary fixing accessory, according to the invention; Figure 32 is a cross-sectional view showing a part with oblong groove or open, fixed to another element, such as for example a vertical wall, by means of the fixing accessory of FIG. 31;

- Figures 33 to 35 show the main stages of implementation of the fixing accessory of Figure 31 to fix the part of Figure 32 to another element, such as for example a vertical wall;

- Figures 36 and 37 are isometric views of an eighth alternative embodiment of a rotary fixing accessory, according to the invention;

- Figure 38 shows a part through which two rotary fixing accessories of Figures 36 and 37 have passed and which can be fixed, by means of these rotary fixing accessories, to another element comprising an oblong groove or opening;

- Figure 29 an isometric view of a ninth alternative embodiment of a fixing accessory in the disassembled state;

- Figure 30 is a cross-sectional view of the fixing accessory of Figure 29, once assembled.

detailed description

1 ^st variation Fixing accessory 2A Figures 1 to 3

Referring to Figure 1, in a first particular embodiment, the rotary attachment 2A has a central axis of rotation A.

This fixing accessory 2A comprises a main cylindrical body 20A centered on the axis A.

In this particular example, but without limitation of the invention, this body 20A is a straight cylinder with circular cross section, comprising a rear face forming the rear face AR of the fixing accessory 2A and a lateral face FL.

This fixing accessory 2A comprises, on the front face AV, a disc 25 of larger diameter than the cylindrical body 20A. This disc 25 is centered on the axis of rotation A and forms a circular shoulder over the entire circumference of the fixing accessory 2A.

The fixing accessory 2A also comprises two anchoring elements 21 A, which protrude at the periphery of the lateral face FL of the cylindrical body 20A, and extend substantially radially from the cylindrical body 20A.

These two anchoring elements 21 A are preferably diametrically opposite with respect to the axis of rotation A of the fixing accessory 2A.

These two anchoring elements 21 A are preferably identical and may or may not be symmetrical with one another with respect to the axis of rotation A.

More particularly, these anchoring elements 21 A are preferably centered on the cylindrical body 20A of the fixing accessory 2A in the direction of the central axis of rotation A.

More particularly, in this variant, each anchoring element 21 A consists of a fine lug, substantially in the shape of an isosceles triangle, and comprises a base 210, which is at the junction with the lateral face FL and which extends along a part of the circumference of the cylindrical body 20A, an edge 21 1 tapered at the top of the triangle, opposite the base 210, and on either side of this edge 21 1 two edges 212, 213 thin forming the two isosceles sides of the triangle.

These two edges 212, 213 have a small thickness so as to facilitate the penetration of the anchoring elements 21 A into the material of the side walls of a groove or an oblong opening, during the rotation on itself of the fixing accessory 2A around the axis A.

These two anchoring elements 21 A allow the fixing accessory 2A to be blocked by pivoting the fixing accessory 2A about the axis A, either in a direction of rotation R1 (FIG. 1) or in the direction of reverse rotation R2.

The body 20A of the fixing accessory 2A has a blind hole 22, which opens into the front face AV of the fixing accessory 2A, that is to say in this variant in the front face of the disc 25.

In another variant, this hole 22 could be through.

This hole 22 is delimited by an internal wall 23 in which four straight V-shaped notches 230 are formed, which extend longitudinally in the direction of the axis of rotation A, and which form the four right angles of a square centered on the axis of rotation A. These notches 230 are provided to allow insertion and locking in rotation around the axis of rotation A of a tool 3, of the angled wrench type with a square section.

In another variant, the hole 22 may comprise a single pair of notches 230 diametrically opposite with respect to the axis of rotation A or more than two pairs of notches 230 diametrically opposite with respect to the axis of rotation A

The portions 231 of the internal wall 23, which extend between the notches 230, form a cylinder and are threaded so as to form a cylindrical thread. This cylindrical thread 231 is able to cooperate with the thread 10 of a screw 1, so as to allow the screw 1 to be screwed into the hole 22.

In the variant of FIG. 2, the fixing accessory 2A has on the rear face AR a projecting central point 24, which is centered on the axis of rotation A. In another variant, the fixing accessory 2A could not not have this point 24.

In another variant, the fixing accessory 2A may comprise a single anchoring element 21 A, in particular when the fixing accessory 2A has a rear central point 24.

The fixing accessory of the invention is preferably a single piece; in this case, in the variant of FIG. 1, the anchoring elements 21 A have come from the same material as the body 20A of the fixing accessory 2A.

The fixing accessory of the invention can also be constituted by a monolithic assembly; in this case, in the variant of FIG. 1, the anchoring elements 21 A can for example be welded, inserted or glued to the body 20A of the fixing accessory 2A.

Preferably, the rotary fixing accessory of the invention is made of a hard material, and more particularly is of metal, for example of stainless steel, or of a metal alloy, for example of Zamak.

^1st example of fitting the fixing accessory 2A - Figures 4 to 8

There is shown in Figure 4, a long piece 4, of the machined and / or extruded profile type, having a straight groove 40, which extends longitudinally in the direction (X) of the length of the piece 4.

The groove 40 of the part 4 is delimited by a bottom wall 40a and two side walls 40b, which are opposite one another, which are oriented transversely relative to the bottom wall 40a, and which extend longitudinally in the direction (X) of the length of the part 4.

In this particular variant of FIG. 4, the groove 40 has a U-shaped profile in cross section, the bottom wall 40a being planar and the two side walls 40b forming two flat surfaces, which are oriented perpendicular to the bottom wall 40a and are facing each other by being parallel.

The invention is not however limited to an implementation of the fixing accessory in a rectilinear groove having in cross section the particular U-shaped profile of FIG. 4, but the fixing accessory can generally be implemented with a groove of a part 4 comprising two side walls 40b, which are opposite one another, without necessarily forming parallel planar surfaces.

Furthermore, the fixing accessory can also be implemented in an oblong opening (through or non-through) of a part 4, which is delimited by at least two side walls 40b which are opposite one the other. Said oblong opening may be non-through (blind hole) and may also be delimited by a bottom wall 40a. Said oblong opening may be through (for example oblong lumen in a room) and not have a bottom wall 40a.

The two side walls 40b of the groove (or oblong opening) 40 are preferably, but not necessarily straight, and preferably extend in length (direction X in FIG. 4) over a distance (length of the groove, groove or hole 40) which is greater than the largest dimension of the fixing accessory.

The main steps of the method for fixing the fixing accessory 2A in the groove 40 of the part 4 will now be detailed with reference to Figures 4 to 7.

With reference to FIG. 5, the fixing accessory 2A is positioned facing the groove 40 at the desired longitudinal location along the groove 40. The rear face AR of the fixing accessory is oriented towards the groove 40 and the fixing accessory 2A is oriented in rotation about the axis A, so that the two diametrically opposite anchoring elements 21A are aligned in the direction of the length of the groove, this is ie in the direction of the length (Figure 4 - direction X) of the side walls 40b.

Then the fastening accessory 2A is translated in the direction of the groove 40 (FIG. 5 / arrow D), so as to insert the cylindrical body 20A of the fastening accessory 2A between the two side walls 40b.

Preferably, the width L (FIG. 5) of the groove 40, which in this variant corresponds to the distance between the two side walls 40b, is very slightly greater than the diameter of the cylindrical body 20A so as to provide just enough play to allow a guided sliding between the side walls 40b of the cylindrical body 20A when it fits into the groove 40.

As illustrated in the variant of Figures 5 and 7, the depth P of the groove 40 (Figure 5) is substantially equal to the height of the cylindrical body 20A, so that once fitted into the groove 40, the body cylindrical 20A of the fixing accessory 2A is entirely housed in the groove 40, with the rear face of the fixing accessory 2A in contact with the bottom wall 40a of the groove 40.

More particularly, when the fixing accessory 2A includes a rear point 24, this rear point 24 penetrates through the material of the bottom wall 40a (FIG. 7), which advantageously makes it possible to obtain a pre-positioning of the fixing accessory 2A in the groove or groove 40, before fixing the fixing accessory. The point 24 pressed through the bottom wall 40b does not prevent the rotation of the fixing accessory on itself around the axis A.

In this variant of FIGS. 4 to 7, the two side walls 40b are extended on the front face of the part 4 respectively by recesses 41, which are dimensioned so that once the fixing accessory 2A is fully inserted in the groove 40, the front disc 25 of the fixing accessory is fitted with a minimum clearance (FIG. 7) between the two recesses 41.

In another variant, such as that illustrated in FIG. 8, the part 4 ’may not have a recess 41.

In another variant, the depth P of the groove 40 can be less than the height of the cylindrical body 20A of the fixing accessory 2A, the essential point being that once the cylindrical body is inserted in whole or in part, between the two side walls 40b, the two anchoring elements 21A are positioned between the two side walls at a sufficient depth for the following operation of blocking the fixing accessory.

In another alternative embodiment, when the fixing accessory does not include a front disc 25, such as for example the alternative embodiment of FIG. 17, the depth P of the groove 40 can be greater than the height of the cylindrical body 20A of the fixing accessory 2A.

To fix the fixing accessory 2A in all directions in the groove 40, the key 3 is used, for example, by inserting one end of this key 3 in the hole 22 of the fixing accessory 2A, so that the key is locked in rotation relative to the fixing accessory 2A by the notches 230 previously described.

Finally, by means of this key 3 we manually rotate the fixing accessory 2A on itself, in the groove 40, around the axis A, in the direction of rotation R1 (FIG. 6) or in the reverse direction of rotation R2, and substantially over a quarter of a turn, so as to force the two anchoring elements 21 A to penetrate into the material respectively of the side walls 40b and obtain complete fixing of the fixing accessory 2A between the two side walls 40b.

The material of the side walls 40b must be sufficiently soft to allow the penetration of the anchoring elements 21 A, during the rotation of the fixing accessory 2A, and must preferably be more tender than the material of the anchoring elements 21 A. We will preferably choose at least for the side walls 40b or if necessary for the whole part 4 or 4 ', a material which allows penetration by screwing, nailing or incision, for example a material made of wood, fibers MDF type wood, chipboard, plywood or composite materials.

In order for the anchoring elements 21 A to penetrate the two side walls 40b, it is necessary for the width L of the groove 40 to be less than the distance between the two vertices 21 1 of the anchoring elements 21 A. Preferably, this width L is chosen so that once the fixing accessory 2A fixed between the two side walls 40b after its rotation by a quarter turn, the two anchoring elements 21 A have fully penetrated (FIG. 7 or 8) in the two side walls 40b.

Preferably, the anchoring elements 21 A are slightly inclined relative to a plane perpendicular to the axis of rotation A, so that during the rotation on itself of the fixing accessory 2A inserted in an oblong groove or opening 40, with penetration of each anchoring element 21 A into the material of at least one side wall 40b, the anchoring elements 21 A drive in translation over a short stroke the fixing accessory in the direction of the axis of rotation A and towards the inside of the slot or oblong opening 40, in the manner of a helical thread. An axial tightening is thus advantageously obtained in the part 4 of the fixing accessory 2A in the direction of the axis of rotation A. The fixing accessory 2A can be removed from the groove 40, by rotating it by a quarter turn around itself around the axis A, by means of the key 3, in the opposite direction of rotation to that used for fixing, and so as to completely extend the two anchoring elements 21A from the side walls 40b.

Once the fixing accessory 2A is fixed between the two side walls 40b, it can be used as a fixing interface, to fix any attached element (not shown) provided for example with an oblong through hole or an oblong through lumen , by means of the screw 1 passed through said insert and screwed into the hole 22 of the fixing accessory 2A. Other examples of fitting the fixing accessory 2A - Figures 9 to 14

FIGS. 9 to 14 show other examples of the use of the fixing accessory 2A, which do not require the use of a screw 1 in combination with said fixing accessory 2A.

In the three variants of FIGS. 9 to 11, an assembly element 6A, of the assembly angle type, is used to assemble two parts 4 end to end, with an angle between the two parts which is consolidated by means of this connecting element 6.

This assembly element comprises two branches 60 defining between them an adjustable angle. Each branch 60 has a rectilinear oblong slot 60a and is fitted between the two recesses 41 of a part 4. Each branch 60 of the assembly bracket 6A is fixed to the corresponding part 4 by means of a fixing accessory 2A passed through the lumen 60a of the branch 60 and fixed in the groove 40 of the corresponding part 4.

In the variants of FIGS. 9 and 1 1, screws 1 are not used. In the variant of FIG. 10, a screw 1 can be used to fix, if necessary, an added element (not shown) to one of the parts 4.

In the variant of FIG. 12, an assembly element 6B is used, of the assembly angle type, and two fixing accessories 2A, for assemble two pieces 4 'end to end and at right angles. In the variant of FIG. 13, an assembly element 6B is used, of the assembly angle type, and two fixing accessories 2A to assemble two parts 4 end to end and at right angles.

The variant of FIG. 14 shows the assembly at a right angle of two 4 "pieces comparing each of the two rectilinear grooves or grooves 40, by means of two assembly brackets 6C and four fixing accessories 2A.

In Figure 14, the assembly brackets 6C are attached to the outside of the right angle formed by the 4 ”pieces. In another variant, by turning the pieces 4 ’around themselves 180 ° around their longitudinal axis, the assembly brackets 6C can be fixed inside the right angle formed by the pieces 4"

^2nd variant: Attachment accessory 2B - Figures 15 and 16

There is shown in Figure 15 a second alternative embodiment of a fixing accessory 2B according to the invention and comprising two anchor elements 21 B diametrically opposite.

Each anchoring element 21 B consists of a fine lug, which extends substantially radially projecting from the main cylindrical body 20B and which also extends along part of the circumference of the cylindrical body 20B.

Each anchoring element 21 B has a tapered edge 214, which has a convex curved profile, facilitating the penetration of the anchoring element 21 B.

More particularly, the tapered edge 214 has a profile substantially in the form of a circular arc, the center of which is situated on or near the axis of rotation A.

Preferably, the tapered edge 214 joins at its two ends the lateral face FL of the cylindrical body 20B.

FIG. 16 shows the use of this fixing accessory 2B to fix, on a part 4, an assembly bracket 6D, comprising two branches 60 each provided with an oblong through hole 60a for the passage of the fixing accessory 2B.

Thanks to the fixing accessory 2B, one of the arms 60 of the assembly bracket 6D can be fixed to the part 4 with an adjustable spacing between the other arm 60 and the end of the part 4.

In an alternative embodiment, the tapered edge 214 of each anchoring lug 21 B of the fixing accessory 2B can extend around the circumference of the cylindrical body 20B by defining a portion of circular ring positioned in a perpendicular plane to the axis of rotation A. In this case during the rotation on itself (in one or the other of the directions of rotation R1 or R2) of the fixing accessory 2B inserted in a groove or opening oblong 40, with penetration of each anchoring element 21 B into the material of the side walls 40b, the anchoring lugs 21 B do not drive the fixing accessory in translation in the direction of the axis of rotation A.

In another alternative embodiment, such as that illustrated in FIGS. 15 and 16, the tapered edge 214 of each anchoring lug 21 B of the fixing accessory 2B can extend around the circumference of the cylindrical body 20B of helically relative to the axis of rotation A. This helical orientation of the anchoring elements 21 B, relative to the axis of rotation A, allows the anchoring elements 21 B, when they enter in rotation (in one or the other of the directions of rotation R1 or R2) in the material of the side walls 40b of an oblong groove or opening 40, to drive in translation the fixing accessory over a short stroke in the direction of the 'axis of rotation A and inward of the slot or oblong opening, in the manner of a helical thread. An axial tightening is thus advantageously obtained in the part 4 of the fixing accessory 2B in the direction of the axis of rotation A.

At least three pieces 4, and preferably four pieces 4, at least two 6D assembly brackets, and preferably four 6D assembly brackets and at least four fixing accessories, and preferably at least eight fixing accessories according to the invention, such as for example the fixing accessories 2B can thus be used to manufacture a U-shaped frame, or preferably of quadrangular shape, for a window or doorway.

3 ^rd embodiment: Fixing accessory 2C- Figures 17 and 18

FIGS. 17 and 18 show a third particular variant embodiment of a fixing accessory 2C and a screw 1.

This fixing accessory 2C comprises a cylindrical main body 20C and anchoring elements 21 C, in an identical manner respectively to the cylindrical body 20A and to the anchoring elements 21A of the fixing accessory 2A of Figures 1 and 2 previously described.

Unlike the fixing accessory 1A in FIGS. 1 and 2, this fixing accessory 2C does not have a disc 25 on the front face and does not have a point 24 on the rear face (FIG. 18).

4 ^th embodiment: Fixing accessory 2D- Figures 19-22

FIGS. 19 to 22 show a fourth particular variant embodiment of a 2D fixing accessory comprising a cylindrical main body 20D and anchoring elements 21 D, in an identical manner respectively to the cylindrical body 20A and to the elements d anchoring 21 A of the fixing accessory 2A of Figures 1 and 2 previously described.

Specifically, this 2D fixing accessory comprises on the front face an assembly means which is elastically deformable, of the fixing clip type 26, comprising two legs 26a elastically deformable.

With reference to FIGS. 20 and 22, this 2D fixing accessory can be fixed between the two side walls 40b of a groove 40 of a 4 ’piece, as previously described for the other fixing accessory variants.

Once the 2D fixing accessory has been fixed in the groove 40 of the part 4 ′, the fixing clip 26 can be used to fix, in a removable manner, an insert 5, such as the plate 5 of FIGS. 20 to 22. This plate 5 is provided on the rear face with projecting elements 5a which are able to cooperate with the elastic fixing tabs 26a of the clip 26 in order to allow elastic fitting of the plate 5 on the clip 26 (FIGS. 21 and 22).

Piece 4 ’can for example be used as a plinth.

5 ^th embodiment: Fixing accessory 2E- Figures 23 - Figures 24A to 24D- Fiqures 25A to 25C

There is shown in Figure 23, another variant of attachment accessory 2E associated with a 3E element, which allows locking in rotation of the attachment accessory 2E, and which is in the form of a square ring.

The fixing accessory 2E comprises a main body 20E forming a straight cylinder, with a central axis of symmetry A, the profile of which in cross section (in a plane perpendicular to the axis of symmetry A) is not circular.

More particularly the lateral face FL of the cylindrical body 20E, which corresponds to the height of the cylinder formed by this cylindrical body, comprises a first part 200, which extends over a half-circumference of the body 20E and a second part 200, which s 'extends over the other half-circumference of the body 20E, and which is symmetrical with the first portion 200 with respect to the axis of rotation A.

Each first or second part 200 consists of a first flat rectilinear portion 200a, a second flat rectilinear portion 200c oriented perpendicular to the first flat rectilinear portion 200a, and a third flat portion 200b, in the shape of a quarter of a circle. , which connects the first flat rectilinear portion 200a to the second flat rectilinear portion 200c.

The fixing accessory 2E also comprises two anchoring elements 21 E which are diametrically opposite and symmetrical to each other with respect to the axis A.

More particularly, each anchoring element 21 E is constituted of a thin element, of the flat fin type, which projects from the lateral face FL of the cylindrical body 20E, and which extends from this lateral face FL of the cylindrical body while being oriented substantially radially with respect to the cylindrical body 20E, that is to say substantially perpendicular to the lateral face FL of the cylindrical body 20E.

Each anchoring element 21 E end has a tapered edge 214 which has a curved profile facilitating the penetration of the anchoring element.

More particularly, this curved profile of the tapered edge 214 of an anchoring element 21 E end comprises a first rectilinear portion 214a which is distant and positioned opposite the first flat rectilinear portion 200a of the body 20E and a second curved portion 214b substantially in the form of a quarter circle, which extends the first straight portion 214a and joins the second straight flat portion 200c of the cylindrical body.

On the front face AV (FIG. 23), the fixing accessory 2E has a protuberance 27 of square shape, and of small thickness, which is in projection relative to the front face of the cylindrical body 20E in the direction of the axis A , and which is centered with respect to the axis of rotation A. The dimensions of this protuberance 27 are sufficiently small so that the protuberance 27 does not protrude relative to the lateral face FL of the cylindrical body 20E.

The ring 3E of the fixing accessory has a square shape which is adapted to that of the aforementioned protuberance 27, so as to be able to fit the ring 3E on said protuberance 27, and so that once the ring 3E is fitted on the protuberance 27, the fixing accessory 2E is locked in rotation around the axis A and in both directions of rotation, relative to the ring 3E.

In another variant, the square profile of the protuberance 27 and of the ring 3E could be replaced by other non-circular profiles, and in particular polygonal profiles, allowing said rotation lock when the ring 3E is fitted on the protrusion 27.

Identically to what has been described previously for the fixing accessory 2A of FIGS. 1 and 2, the fixing accessory 2E has a threaded hole 22 and provided with notches 230.

The main steps of the method for fixing the fixing accessory 2E in the groove 40 of a part 4 ’will now be detailed with reference to FIGS. 24A to 24D

With reference to FIG. 24A, the fixing accessory 2E is positioned facing the groove 40 at the desired longitudinal location along the groove 40. The rear face AR of the fixing accessory is oriented towards the groove 40 and the fixing accessory 2E is oriented in rotation about the axis A, so that the two diametrically opposite anchoring elements 21 E are aligned in the direction of the length of the groove or groove 40, that is to say in the direction of the length (FIG. 4 - direction X) of the side walls 40b.

Then the attachment accessory 2E is translated in the direction of the groove or groove 40, so as to insert the cylindrical body 20E of the attachment accessory 2E between the two side walls 40b, the attachment accessory 2E being oriented around the axis of rotation A in a first extreme insertion position.

Preferably, the width L of the groove or groove 40, which in this variant corresponds to the distance between the two side walls 40b is very slightly greater than the diameter of the cylindrical body 20E so as to provide a clearance just sufficient to allow guided sliding. between the side walls 40b of the cylindrical body 20E when it fits into the groove 40.

Once the fastening accessory 2E is fitted into the groove or groove 40, each second flat rectilinear portion 200c of the cylindrical body 20E is oriented parallel to and is in contact with one of the side walls 40b of the groove or groove 40 (FIGS. 24A and 25A).

As a result, in this first extreme insertion position of FIGS. 24A and 25A, the cylindrical body 20E of the fixing accessory 2E can be forcibly turned on itself around the axis of rotation A in a first direction of rotation R1, but is locked in rotation around the axis of rotation A, in the second reverse direction of rotation R2, by the two side walls 40b, facing each other.

In the particular variant illustrated, the first direction of ration R1 is the direction of clockwise rotation. In another variant, said first direction of rotation R1 could be a counterclockwise direction of rotation.

Then (FIG. 24B), to fix the fixing accessory 2E in all directions, for example the key 3 of FIG. 1 is used, by introducing one end of this key 3 into the hole 22 of the fixing accessory 2E , so that the key is locked in rotation relative to the fixing accessory 2E by the notches 230 previously described.

By means of this key 3, the fixing accessory 2E is manually rotated on itself, in the groove or groove 40, around the axis A, in the direction of rotation R1 (FIG. 24B), and over a quarter in turn, so as to force the two anchoring elements 21 E to gradually penetrate into the material respectively of the side walls 40b and obtain complete fixing of the fixing accessory 2E between the two side walls 40b.

This quarter turn rotation of the fixing accessory is carried out up to the extreme anchoring position of FIGS. 24B and 25B.

In this extreme anchoring position (FIGS. 24B and 25B), each anchoring element 21 E has penetrated, preferably entirely, into the corresponding side wall 40b and each first rectilinear flat portion 200a of the cylindrical body 20E is oriented parallel to and is in contact with one of the side walls 40b of the groove or groove 40.

As a result, in this extreme anchoring position of FIGS. 24B and 25B, the cylindrical body 20E of the fixing accessory 2E can be forcibly turned on itself around the axis of rotation A in the direction of rotation R2, but is locked in rotation about the axis of rotation A, in the direction of rotation R1, by the two side walls 40b, facing each other.

In an alternative embodiment, each anchoring element 21 E is perpendicular to the axis of rotation A, so that its tapered edge 214 defines a portion of circular ring positioned in a plane perpendicular to the axis of rotation A. In this case during the rotation on itself in the direction of rotation R1 of the fixing accessory 2B inserted in a slot or oblong opening 40, with penetration of each element of anchoring 21 E in the material of the side walls 40b, the anchoring elements 21 E do not drive in translation the fixing accessory in the direction of the axis of rotation A.

In another alternative embodiment, each anchoring element 21 E may be slightly inclined relative to a plane perpendicular to the axis of rotation A, so that the tapered edge 214 of each anchoring element 21 E of l the fixing accessory 2E extends around the circumference of the cylindrical body 20E in a helical manner relative to the axis of rotation A. This helical orientation of the anchoring elements 21 E, relative to the axis of rotation A, allows the anchoring elements 21 E, when they enter in rotation, in the direction of rotation R1, in the material of the side walls 40b of an oblong groove or opening 40, to drive in translation over a short stroke the attachment accessory in the direction of the axis of rotation A and towards the inside of the groove or oblong opening, in the manner of a helical thread. An axial tightening is thus advantageously obtained in the part 4 ’of the fixing accessory 2E in the direction of the axis of rotation A.

The fixing accessory 2E can, if necessary, be removed from the groove or groove 40, by pivoting it by a quarter of a turn about itself around the axis A, by means of the key 3, in the direction of rotation R2 opposite to that used for blocking, and so as to make the two anchoring elements 21 E come out completely from the side walls 40b.

Once the fixing accessory 2E has been fixed between the two side walls 40b, the ring 3E is fitted onto the protrusion 27 of the fixing accessory 2E (FIGS. 24C and 25C).

Preferably, as illustrated in FIG. 24C, the dimensions of the ring 3E are chosen, relative to the distance between the two side walls 40b, so that the ring 3E can be fitted with a minimum clearance between the two side walls 40b and is thus blocked in rotation around the axis A, and in both directions of rotation, by the side walls 40b. As a result, the ring 3E locks in rotation the fixing accessory 2E around the axis A, said fixing accessory 2E thus being unable to be removed from the groove or groove 40, without having previously removed the ring 3E.

The fixing accessory 2E can be used as a fixing interface, for fixing any attached element (not shown) provided for example with a through hole, by means of the screw 1 passed through said attached element and screwed into the hole 22 of the fixing accessory 2E (FIG. 24D) In this variant, the invention is not limited to the particular curved profile of the lateral face FL of the cylindrical body 20E previously described.

The cylindrical body 20E can more generally form a straight cylinder centered on the axis of rotation A, and present in cross section (that is to say in a plane perpendicular to the axis of rotation A) a profile which is non-circular, which is symmetrical with respect to the axis of rotation A, which is circumscribed in a square (fictitious), and which defines two extreme positions in rotation of the fixing accessory inserted in a groove or opening oblong 40, namely:

an extreme insertion position in the slot or oblong opening 40, in which the cylindrical body 20E of the fixing accessory 2E can be turned on itself, preferably by a quarter of a turn, around the axis of rotation A in a first direction of rotation R1, but is locked in rotation about the axis of rotation A, in the second direction of rotation R2 reverse, by two side walls 40b, opposite one of the other, delimiting the oblong groove or opening 40, and

- A second extreme anchoring position in which each anchoring element has fully or partially penetrated into the material of at least one side wall 40b partially defining the groove or oblong opening 40 and in which the cylindrical body 20E of l 'accessory fastening 2E can be turned on itself, preferably by a quarter of a turn, around the axis of rotation A in said second direction of rotation R2, but is locked in rotation around the axis of rotation A in said first direction of rotation R1, by two side walls 40b facing each other, delimiting the groove or oblong opening 40.

In another variant, the locking ring 3E can also be used with a cylindrical body with a circular cross section.

6 ^th variant: 2F fixing accessory - Figures 26 to 30

FIG. 26 shows another alternative embodiment of a fixing accessory 2F, comprising a cylindrical main body 20F, similar to the main body 20E previously described, and provided at its periphery with two diametrically opposite anchoring elements 21 F relative to the axis of rotation A of the fixing accessory 2F.

This finishing accessory also comprises an additional fixing element 22F, which in the particular example illustrated is a plate of small maximum thickness E (FIG. 27), intended more particularly to act as a fixing lug.

In this variant, the thickness of the plate 22F is constant. In another variant, this thickness may not be identical at all points of the plate.

The additional fixing element 22F is not necessarily a plate and can be constituted by any other mechanical connection element fulfilling the same function.

In this particular example, the main body 20F of the fixing accessory 2F has a tapped hole 22 with diametrically opposite notches 230, as for the variant of FIG. 1, and is able to cooperate with an attached fixing screw 1. This tapped hole 22 may be blind or through, and may or may not extend through the additional fixing element 22F.

The 2F fixing accessory can be made in one single piece. The fixing accessory can also be constituted by a monolithic assembly of several parts. In particular, the fastening element 22F may be an insert, which is fixed to the main body 20F by any means, so as to be at least partially projecting from said main body 20F, or which is capable of being fixed permanently or removable from the main body 20F, so as to be at least partially projecting from said body 20F.

In the particular example of FIG. 26, this fastening element 22F is positioned on the front face of the finishing accessory and is oriented transversely, and preferably substantially perpendicular to the axis of rotation A of the fastening accessory 2F , and thus extends in length radially relative to the main body 20F.

In the part 220 of the fixing element 22F, which projects from the body 20F (FIG. 26), a through opening 221 is formed, which can be used to fix the fixing accessory 2F, for example by means of a screw V or equivalent (figure 27) to another element 7.

With reference to FIG. 27, the main body 20F carrying the projecting anchoring elements 21 F can be inserted (FIG. 28) in a groove 40 in a 4 ”piece, so that the fixing element 22F is positioned outside said groove 40, and can be fixed in this groove 40, by means of anchoring elements 21 F, as previously described for the other variants, by rotation of a quarter of a turn of the accessory attachment 2F around the axis of rotation A (Figures 29 and 27).

In the alternative embodiment of FIGS. 27 to 30, when the fastening accessory 2F is in its position of introduction into the groove 40 (FIG. 28), the fastening element 22F extends in length substantially parallel to the length of groove 40.

When the fixing accessory 2F is pivoted by a quarter turn to be fixed in the groove 40 by means of the anchoring elements 21 F (FIGS. 27 and 30 - extreme anchoring position), the fixing element 22F is partly projecting from the 4 ”piece, and more particularly in this example extends in length substantially perpendicular to the longitudinal direction (length) of the groove 40.

The through hole 221 can thus advantageously be used to pass a fixing screw V or equivalent through the projecting part 220 of the fixing element 22F (figure 30), so as to fix the part 4 "'to another element 7.

This other element 7 can be any type of added element or can be a fixed element, such as for example a wall, and in particular but not exclusively a vertical wall such as a wall or a partition.

The 4 "piece with at least one groove 40 (or oblong opening) can be of any type, its structure and its function being of no importance for the invention. It can for example, but not exclusively, be a piece of furniture, a shelf, a console, a board, a panel, etc.

Preferably, and optionally, whatever the variant embodiment of the fixing accessory of the invention, and with reference by way of illustration only to the variant of FIG. 27, the fixing accessory can advantageously be used in a groove or opening 40 of very shallow depth P, in particular of depth P less than equal to 6mm, and more particularly less than or equal to 3mm.

In this case, the maximum axial dimension H of the main body 20F of the fixing accessory 2F, measured in the direction of the axis of rotation (A), is less than or equal to 5mm, and preferably less than or equal to 3mm and / or the axial distance D (FIG. 27), measured parallel to the axis of rotation A, between each anchoring element 21 F and the rear face AR of the fixing accessory 2F (rear face of the main body 20F which is intended to be oriented towards the inside of the groove or oblong opening 40), is preferably less than half of the maximum axial dimension H and for example is less than or equal to 3mm, preferably less than or equal to 2mm. This axial distance D can advantageously be zero.

Preferably, but not necessarily, in certain applications, the maximum thickness E of the fastening element 22F can be advantageously small, and in particular may be less than the maximum axial dimension H of the main body 20F and / or is less than or equal to 2mm. 7 ^th embodiment: Fixing accessory 2G- Figures 31-35

FIG. 31 shows another alternative embodiment of a 2G fixing accessory in two parts which can be assembled with each other, namely:

- a part consisting of a main cylindrical body 20G, similar to the main body 20E, and provided at its periphery with two anchoring elements 21 G diametrically opposite with respect to the axis of rotation A of the fixing accessory.

- A fastening element 22G, of the thin plate type, which is distinct from the part 20G / 21 G and which is capable of being fixed, to the main body 20G in a removable or permanent manner.

In the particular example of FIGS. 31 and 32, the fixing element 22G and the main body 20G are designed so as to allow an elastic interlocking, of the clipping type, of the fixing element 22G on the main body 20G, of such that the fixing element 22G is immobilized at least in rotation about the axis A relative to the main body 20G.

More generally, any known assembly means can be used to assemble the fixing element 22G with the cylindrical body 20G, in a removable or non-removable manner.

In the variants described above in FIGS. 26 to 35, the fastening element 22F, 22G, where appropriate when it (22G) is assembled with the main body 20G, is immobilized in rotation relative to this main body 20G, by such that it pivots at the same time as this main body 20F or 20G. However, in another alternative embodiment, the main body 20Fou 20G of the fixing accessory and the associated fixing element 22Fou 22G could be designed so as to pivot freely relative to one another around the axis of rotation A, such as in particular in the embodiment of Figures 39 and 40.

8 ^th variant: 2H fixing accessory - Figures 36 and 37 FIGS. 36 and 37 show another alternative embodiment of a 2H fixing accessory, comprising a cylindrical main body 20H, similar to the main body 20E, and provided at its periphery with two diametrically opposite anchoring elements 21H relative to the axis of rotation A of the fixing accessory 2H.

In this variant, each anchoring element 21 H adjoins the rear face AR of the cylindrical body 20H, and more particularly comprises a rear face, preferably planar, which is located in the extension of the rear face AR of the cylindrical body 20H.

With reference to FIG. 38, one or more fixing accessories 2H can be used to fix a part 8 with another part (not shown in FIG. 38) comprising at least one groove or oblong opening.

In the alternative embodiments illustrated, each main body advantageously forms a straight cylinder centered on the axis of rotation A. It is nevertheless possible in other alternative embodiments than the main body 20A 20B; 20E; 20F; 20G; 20H is not cylindrical, or that the main body 20A 20B; 20E; 20F; 20G; 20H is only partly cylindrical and centered on the axis of rotation A, and more particularly partly forms only a straight cylinder and centered on the axis of rotation A. In this case the anchoring elements are preferably positioned at the level of the cylindrical part of the main body of the fixing accessory. 9 ^th variant: 2I mounting accessory - Figures 39 and 40

The fixing accessory 2I of FIG. 39 comprises two parts which can be assembled with one another: a first part comprising a main cylindrical body 20I which is extended on the front face by a head 25 'in the form of a disc and of larger diameter and which is provided at its periphery with two anchoring elements 21 1 diametrically opposite with respect to the axis of rotation A of the fixing accessory; a fixing element 22I of the fixing lug type, comprising a through opening 222 adapted to serve as housing for the head 25 '(FIG. 40) and a through opening 221 capable of be used to fix the fixing element 221 to another element, for example by means of a screw or equivalent, passed through this opening 221.

In this variant, as in the variant of FIGS. 36 and 37, each anchoring element 21 1 adjoins the rear face AR of the main cylindrical body 20I, and more particularly comprises a rear face, preferably planar, which is located in the extension of the rear face AR of the main cylindrical body 20I.

With reference to FIG. 40, the fixing element 22I can be assembled, removably with the main body 20I by means of the head 25 ', by passing the main body 20I through the through opening 222 of the fixing element 22I, until the head 25 'is housed in said through opening 222.

The head 25 'and the said through opening 222 (FIG. 40) have complementary conical shapes in cross section so that once the head 25' housed in the through opening 222, the main body 20I is locked in translation axially in the direction of its rear face AR but can rotate in rotation about the axis A.

The invention is not limited to the implementation of a fastening element in the form of a thin plate, but can generally be implemented with any type of fastening element, whatever in particular the shape of the fixing element. For example and in a non-exhaustive manner, the fastening element can also have the shape of a square or hook.

In the variant embodiments illustrated in the appended figures, the fixing accessory 2A to 2I comprises two anchoring element elements 21 A to 21 1 which are diametrically opposite and symmetrical with respect to each other with respect to the axis A, without axial offset between the two anchoring elements in the direction of the axis of rotation A of the fixing accessory. In another variant, the two anchoring elements can be diametrically opposite one with respect to the other with respect to the axis A, with a slight axial offset between the two anchoring elements in the direction of the axis of rotation A of the fixing accessory. In addition, two anchoring elements diametrically opposite one with respect to the other with respect to the axis A are not necessarily identical.

Claims

1. Fixing accessory (2A; 2B; 2C; 2D; 2E; 2F; 2G; 2H; 2I) for part (4; 4 '; 4 ”; 4” ”) comprising an oblong groove or opening (40), said accessory fastening device comprising one or more anchoring elements (21 A; 21 B; 21 C; 21 D; 21 E; 21 F; 21 G; 21 H; 2I) protruding at the periphery of the fixing accessory, and the fixing accessory being able to be inserted in whole or in part in said groove or oblong opening (40) of the part (4; 4 '; 4 ”; 4”') and to be fixed in said groove or oblong opening, by rotation of the fixing accessory on itself around an axis of rotation (A), so that each anchoring element (21A; 21 B; 21 C; 21 D; 21 E; 21 F; 21 G; 21 Fl; 2I) penetrates into the material of at least one side wall (40b) partially defining said groove or oblong opening (40).

2. Attachment accessory according to claim 1, comprising two anchoring elements (21 A; 21 B; 21 C; 21 D; 21 E; 21 F; 21 G; 21 H; 2I) projecting at the periphery of the fixing accessory and diametrically opposite with respect to the axis of rotation (A) of the fixing accessory, with or without axial offset between the two anchoring elements in the direction of the axis of rotation (A).

3. Attachment accessory according to claim 2, wherein the two anchoring elements are identical and symmetrical to each other with respect to the axis of rotation (A) of the attachment accessory.

4. fixing accessory (2E) according to any one of the preceding claims comprising only two anchoring elements (21A; 21 B; 21 C; 21 D; 21 E; 21 F; 21 G; 21 Fl; 2I) diametrically opposite to the axis of rotation (A) of the fixing accessory.

5. Attachment accessory (2E) according to any one of the preceding claims, comprising, on the front and projecting, a first element (27) for locking in rotation, which is able to cooperate with a second element for locking in rotation (3E), in particular of the locking ring type, which is nestable on the first rotation locking element (27) when the fixing accessory is fixed by means of each anchoring element in an oblong groove or opening (40) , and which, once fitted on the first element (27) for locking in rotation, allows a locking in rotation of the fixing accessory with respect to the second element (3E) for locking in rotation, around the axis of rotation (A) and in both directions of rotation.

6. Attachment accessory according to any one of the preceding claims, comprising on the front face (AV) an assembly means (26) elastically deformable, of the elastic clip type.

7. fastening accessory (2B; 2E; 2F; 2G; 2H) according to any one of the preceding claims, comprising a main body (20B; 20E; 20F; 20G; 20H), preferably a main body forming in whole or part a cylinder centered on the axis of rotation (A), and in which each anchoring element (21 B; 21 E; 21 F; 21 G; 21 Fl) is oriented substantially radially with respect to the main body, and has a tapered and curved edge (214) facilitating said penetration of the anchoring element into the material of at least one side wall (40b) partially delimiting said oblong groove or opening (40).

8. fixing accessory (2B; 2E; 2F; 2G; 2FH) according to claim 7, in which the curved tapered edge (214) of each anchoring element comprises at least one portion in the form of an arc of a circle, of which the center is positioned on the axis of rotation or near the axis of rotation (A).

9. Attachment accessory (2A; 2C; 2D) according to any one of claims 1 to 6, comprising a main body (20A; 20C; 20D), preferably a main body forming all or part of a cylinder centered on the axis of rotation (A), and in which each anchoring element (20A; 20C; 20D) is constituted by a thin lug in the shape of an isosceles triangle, which is oriented substantially radially with respect to the main body, the base of which ( 210) is located at the level of the main body (20A; 20C; 20D) and the top (21 1) of which forms an edge facilitating said penetration of the anchoring element into the material of at least one side wall (40b) partially delimiting said oblong groove or opening (40).

10. Attachment accessory (2E; 2F; 2G; 2H) according to any one of the preceding claims, comprising a main body (20E; 20F; 20G; 20H), preferably a main body forming all or part of a centered cylinder. on the axis of rotation (A), in which the main body (20E; 20F; 20G; 20H) has in cross section a profile which is non-circular, which is symmetrical with respect to the axis of rotation (A), which is preferably circumscribed in a square, and which defines two extreme positions in rotation of the fixing accessory inserted in a groove or oblong opening (40), namely an extreme position of insertion in the groove or oblong opening (40 ), in which the main body (20E; 20F; 20G; 20H) of the fixing accessory (2E) can be turned on itself in a first direction of rotation (R1), preferably by a quarter of a turn , around the axis of rotation (A), and a second extreme anchoring position, in which each anchoring element has fully or partially penetrated into the material of at least one side wall (40b) partially delimiting the groove or oblong opening (40), and in which the main body (20E; 20F; 20G; 20H) of the fixing accessory (2E; 2F; 2G; 2H) can be turned on itself, preferably by a quarter of a turn, around the axis of rotation (A) in said second direction of rotation (R2), but is locked in rotation about the axis of rotation (A) in said first direction of rotation (R1), by two side walls (40b), opposite one another, delimiting the groove or oblong opening (40).

1 1. Fastening accessory (2E; 2F; 2G; 2H) according to any one of the preceding claims, comprising a main body (20E; 20F; 20G; 20H), preferably a main body wholly forming a cylinder centered on the axis of rotation (A), in which the cylindrical body (20E; 20F; 20G; 20H) has in cross section a profile which is non-circular, which is symmetrical with respect to the axis of rotation (A), which is of preferably circumscribed in a square, and which defines two extreme positions in rotation of the fixing accessory inserted in an oblong groove or opening (40), namely an extreme position of insertion in the groove or opening (40), in which the main body (20E; 20F; 20G; 20H) of the fixing accessory (2E; 2F; 2G; 2H) can be turned on itself, preferably by a quarter of a turn, around the axis of rotation (A), in a first direction of rotation (R1), but is locked in rotation on around the axis of rotation (A) in a second reverse direction of rotation (R2), by two side walls (40b), facing each other, delimiting the groove or opening ( 40), and a second extreme anchoring position, in which each anchoring element has completely or partially penetrated into the material of at least one side wall (40b) partially delimiting the groove or oblong opening (40), and wherein the main body (20E; 20F; 20G; 20H) of the fixing accessory (2E; 2F; 2G; 2H) can be turned on itself, preferably by a quarter of a turn, around the axis of rotation (A) in said second direction of rotation (R2).

12. Fixing accessory (2E; 2F; 2G; 2H) according to any one of the preceding claims, comprising a main body (20E; 20F; 20G; 20H), preferably a main body wholly forming a cylinder centered on the axis of rotation (A), in which the main body (20E; 20F; 20G; 20H) has a cross section which is not circular, which is symmetrical with respect to the axis of rotation (A), which is preferably circumscribed in a square, and which defines two extreme positions in rotation of the fixing accessory inserted in an oblong groove or opening (40) , namely an extreme insertion position in the groove or oblong opening (40), in which the main body (20E; 20F; 20G; 20H) of the fixing accessory (2E; 2F; 2G; 2H) can be turned on itself, preferably a quarter turn, around the axis of rotation (A), in a first direction of rotation (R1), but is locked in rotation around the axis of rotation (A ) in a second reverse direction of rotation (R2), by two side walls (40b), facing one another, delimiting the oblong groove or opening (40), and a second extreme position d anchoring, in which each anchoring element has fully or partially penetrated the material of at least one delimited side wall (40b) both partly the oblong groove or opening (40), and in which the main body (20E; 20F; 20G; 20H) of the fixing accessory (2E; 2F; 2G; 2H) can be turned on itself, preferably by a quarter of a turn, around the axis of rotation (A) in said second direction of rotation (R2), but is locked in rotation about the axis of rotation (A) in said first direction of rotation (R1), by two side walls (40b), facing each other , delimiting the groove or oblong opening (40).

13. A fixing accessory (2E) according to any one of claims 10 to 12, in which the cross-sectional profile of the main body (20E; 20F; 20G; 20H) makes it possible to rotate on itself around the axis (A) the accessory for fixing a quarter turn between said extreme insertion position and said extreme anchoring position.

14. A fixing accessory according to claim 13, in which the main body (20E) is a cylindrical body centered on the axis of rotation (A) and has a lateral face (FL) formed by two identical and symmetrical parts (200). from each other with respect to the axis of rotation (A), each part (200) of the lateral face (FL) of the cylindrical body (20E) comprising a first flat rectilinear portion (200a), a second flat rectilinear portion (200c) oriented perpendicular to the first flat rectilinear portion (200a), and a third curved flat portion (200b), preferably in the form of a quarter of a circle, which connects the first flat rectilinear portion (200a) to the second flat rectilinear portion (200c).

15. Fixing accessory according to any one of the preceding claims, and capable of being fixed in an oblong groove or opening (40), by means of each anchoring element (21 A; 21 B; 21 C; 21 D;

21 E; 21 F; 21 G; 21 Fl) projecting, by pivoting the fixing accessory on itself by a quarter turn.

16. Fastening accessory according to any one of the preceding claims, in which the anchoring element (s) (21 A; 21 B; 21 C; 21 D; 21 E; 21 F; 21 G; 21 Fl) are suitable to drive the fixing accessory in translation in the direction of the axis of rotation (A) and towards the inside of the groove, or oblong opening, in the manner of a helical thread, during rotation on it - even of the fixing accessory inserted in a groove, or oblong opening (40) with penetration of each anchoring element (21 A; 21 B; 21 C; 21 D; 21 E; 21 F; 21 G; 21 Fl) in the material of at least one side wall (40b).

17. A fixing accessory according to any one of the preceding claims, comprising on the rear face a point (24) projecting centered on the axis of rotation (A).

18. Fixing accessory according to any one of the preceding claims, in which at least each anchoring element (21A; 21 B; 21 C; 21 D; 21 E; 21 F; 21 G; 21 H) is made of metal or alloy of metals.

19. fixing accessory according to any one of the preceding claims, further comprising a through hole or blind, adapted to be used to rotate the fixing accessory on itself around its axis of rotation (A) .

20. A fixing accessory according to claim 19, in which said hole (22) comprises at least two notches (230) diametrically opposite with respect to the axis of rotation (A) and allowing insertion and locking in said hole d 'A suitable tool (3) which can be used to forcibly rotate said fixing accessory.

21. Fastening accessory according to any one of claims 19 or 20, wherein said hole (22) is a threaded hole having a cylindrical thread (23).

22. Fixing accessory (2H; 21) according to any one of the preceding claims, comprising a main body (20H; 201), preferably a main body wholly forming a cylinder centered on the axis of rotation (A) , in which each anchoring element projects on the periphery of said main body, in which each anchoring element (21 H; 21 1) adjoins the rear face (AR) of said main body (20 H; 20 I), and preferably comprises a rear face (21 a) situated in the extension of the rear face (AR) of said main body (20H; 20I).

23. fastening accessory according to any one of the preceding claims comprising a main body, preferably a main body forming in all part a cylinder centered on the axis of rotation (A), in which each anchoring element is projecting at the periphery of said main body, and in which the axial distance (D) between each element anchoring and the rear face (AR) of the fixing accessory is less than half of the maximum axial dimension (H) of the main body and / or is less than or equal to 3mm, preferably less than or equal to 2mm, and more preferably is zero.

24. Fastening accessory according to any one of the preceding claims, comprising a main body, preferably a main body forming in all part a cylinder centered on the axis of rotation (A), in which each anchoring element is projection at the periphery of said main body, and in which the maximum dimension (H) of said main body, measured in the direction of the axis of rotation (A), is less than or equal to 5mm, and preferably less than or equal to 3mm .

25. fixing accessory (2F; 2G; 21) according to any one of the preceding claims, comprising a main body (20F; 20G), preferably a main body forming in all part a cylinder centered on the axis of rotation ( A), in which each anchoring element (21 F; 21 G; 21 1) protrudes at the periphery of said main body, said fixing accessory further comprising a fixing element (22F; 22G; 221), which forms a single piece with the main body (20F) being at least partially projecting from this main body (20F), or which is assembled or is capable of being assembled with the main body (20G; 201) so to be at least partially projecting from this main body (20G; 201).

26. A fixing accessory according to claim 25, in which the fixing element (22F; 22G) is a plate forming a fixing lug or a bracket or a hook.

27. Fixing accessory according to any one of claims 25 or

26, in which the fixing element (22F) is oriented transversely, and preferably substantially perpendicular to the axis of rotation (A) of the fixing accessory.

28. A fixing accessory according to any one of claims 25 or 27, in which the fixing element (22F) is positioned or is capable of being positioned on the front face of the fixing accessory.

29. A fixing accessory according to any one of claims 25 to 28, in which the fixing element (22) has a through hole (221) in its part (220) projecting from the main body (20F; 20G ).

30. A fixing accessory according to any one of claims 25 to 29, in which the fixing element (22) has a maximum thickness (E) which is less than the maximum axial dimension (Fl) of the main body (20F; 20G).

31. Fixing accessory according to any one of Claims 25 to 30, in which the fixing element (22F) has a maximum thickness (E) which is less than or equal to 2mm.

32. An assembly comprising a fixing accessory of claim 21 and at least one threaded fixing element (1), in particular a fixing screw (1), or an added element comprising a threaded fixing element (1), said threaded fixing (1) being able to be screwed into the threaded hole (22) of the fixing accessory.

33. Assembly comprising at least one part (4; 4 '; 4 ”; 4”') comprising a groove or an oblong opening (40), and at least one fixing accessory (2A; 2B; 2C; 2D; 2E; 2F; 2G; 2FH) of any one of claims 1 to 31, said fixing accessory being able to be inserted into said groove, or oblong opening (40) of the part (4; 4 '; 4 ”) and to be fixed in said groove or oblong opening (40), by rotation of all or part of the fixing accessory on itself around an axis of rotation (A), so that each anchoring element ( 21 A; 21 B; 21 C; 21 D; 21 E) penetrates into the material of at least one side wall (40b) partially delimiting said groove or opening (40).

34. An assembly according to claim 33, further comprising an element (3E) for locking in rotation, of the ring type, which is nestable on the fixing accessory (2E), and which once fitted on the fixing accessory allows a locking in rotation of the fixing accessory, around the axis of rotation (A) and in both directions of rotation.

35. The assembly of claim 33 or 34, further comprising at least one insert, provided with at least one oblong through hole or an oblong through hole (60a) which allows its fixing with said piece (4; 4 '; 4 ”) By means of at least said fixing accessory, passed through said lumen or said hole (60a), and fixed in said groove or oblong opening (40) of the part by means of each anchoring element.

36. An assembly according to claim 33 or 34, comprising at least two parts (4; 4 '; 4 ”) each comprising a groove (40) or an oblong opening (40), at least two fixing accessories of any one claims 1 to 33, and at least one connecting element (6), which is provided with at least two oblong through holes or oblong through holes (60a), and which can be fixed with the two parts (4; 4 '; 4 ”) by means of the two fixing accessories respectively passed through the holes or openings (60a) of the connecting elements (6), and fixed in the groove or oblong opening (40) respectively of the two parts.

37. The assembly of claim 35 or 36, wherein the insert or assembly element is an assembly bracket (6A; 6B; 6C; 6D).

38. An assembly according to claim 37, making it possible to manufacture a frame, and in particular a frame for a door or window recess, and comprising at least three elongated parts, and preferably four elongated parts, each comprising a groove or an oblong opening ( 40), at least two assembly brackets, and preferably four assembly brackets, each provided with at least two oblong through holes or oblong through holes (60a), and at least four fixing accessories, and preferably at minus eight fixing accessories.

39. An assembly according to any one of claims 33 to 38, in which the fixing accessory comprises a through or blind hole (22) which is threaded and said assembly comprising at least one threaded fixing element (1), in particular a fixing screw (1), or an attached element comprising a threaded fixing element (1), said threaded fixing element (1) being able to be screwed into the threaded hole (22) of the fixing accessory.

40. An assembly according to any one of claims 33 to 39 comprising an insert (5) capable of being fitted resiliently onto said fixing accessory (2D).

41. Assembly according to any one of Claims 33 to 40, in which the depth (P) of the groove or the opening (40) of the part is less than or equal to 6mm, preferably less than or equal to 3mm.

42 An assembly according to claim 33 to 40, in which the fixing accessory (2F; 2G) is that of any one of claims 25 to 31, and in which the fixing element (22F; 22G) of the fixing accessory is at least partially projecting from the part (4 ”'), when the fixing accessory is inserted and anchored in the groove or oblong opening (40) of said piece (4 ”') by means of each anchoring element (21 F; 21 G).

43. An assembly according to any one of claims 33 to 42, in which at least the side walls (40b) delimiting said groove or said opening (40) in the part (4; 4 '; 4 ”), and preferably any the part (4; 4 '; 4 ”), is in a softer material than the material constituting the anchoring element (s).

44. An assembly according to any one of claims 33 to 43, in which at least the side walls (40b) delimiting said groove or said opening (40) in the part (4; 4 '; 4 ”), and preferably any the piece (4; 4 '; 4 ”), is in a material selected from the materials in the following list: wood, MDF type wood fibers, chipboard, plywood, composite material.

45. Method of fixing a fixing accessory (2A; 2B; 2C; 2D; 2E;;

2 F ; 2G; 2H; 2I) of an assembly of any one of claims 32 to 44 in a groove (40) or an oblong opening (40) of a part (4; 4 '; 4 ”; 4”') of said assembly, said process comprising the following successive steps:

- all or part of the fixing accessory (2A; 2B; 2C; 2D; 2E) is inserted into the groove or opening (40) of the part (4; 4 '; 4 ”; 4”'), so that each anchoring element (21 A; 21 B; 21 C; 21 D; 21 E; 21 F; 21 G; 21 Fl; 2I) protruding is fully positioned in the groove or opening of the room (4; 4 '; 4 ”; 4”');

- the fixing accessory is fixed in the groove or opening (40) of the part (4; 4 '; 4 ”), by turning it wholly or partly on it- even, preferably by a quarter turn, so that each anchoring element (21 A; 21 B; 21 C; 21 D; 21 E; 21 F; 21 G; 21 H; 21 1) projecting penetrates into the material of a side wall (40b) partially defining said groove or opening (40).

46. Method according to claim 45, in which the fixing accessory is that (2E; 2F; 2G; 2H; 21) of any one of claims 10 to 14, and in which:

- all or part of the fixing accessory (2E; 2F; 2G;

2H; 2I)) between two side walls (40b), facing each other, delimiting the groove or oblong opening (40) of the part (4; 4 '; 4 ”), such that each projecting anchor (21 A; 21 B; 21 C; 21 D; 21 E) is completely positioned in the groove or oblong opening of the part (4; 4; 4 ”') and that the main body (20E; 20F; 20G; 20H) of the fixing accessory (2E; 2F; 2G; 2H; 2I) can be turned on itself around the axis of rotation (A) in a first direction of rotation (R1), and is preferably locked in rotation, by said side walls (40b), around the axis of rotation (A) in the second reverse direction of rotation (R2), and

- the fixing accessory is fixed in the groove or the oblong opening

(40) of the part (4; 4 '; 4 ”), by rotating the main body (20E; 20F; 20G; 20H; 2I)) on itself, preferably by a quarter turn, such so that each anchoring element (21 E; 21 F; 21 G; 21 Fl; 21 1) protruding into the material of a side wall (40b) delimiting in part said groove or oblong opening (40) and up to '' at an extreme anchoring position, in which each anchoring element has fully or partially penetrated the material of at least one side wall (40b), and in which the main body (20E; 20F; 20G; 20FH ; 20l) of the fixing accessory (2E; 21 F; 21 G; 21 Fl; 21 1) can be turned on itself around the axis of rotation (A) in said second direction of rotation (R2) , but is locked in rotation, by said side walls (40b), around the axis of rotation (A) in said first direction of rotation (R1).

47. Method according to any one of claims 45 or 46, in which the rotation on itself of the fixing accessory inserted in a slot or oblong opening (40), with penetration of each anchoring element in the material at least one side wall (40b), causes the translation of the fixing accessory in the direction of the axis of rotation (A) and inwardly of the groove or oblong opening (40).

48. Method according to any one of claims 45 to 47, in which the fixing accessory (2E) is locked in rotation, which is fixed in the groove or the opening (40) of the part (4 ') at means of each anchoring element (21 E), by fitting an element (3E) for locking in rotation on said fixing accessory (2E), so that once fitted on said fixing accessory, this element (3E ) rotation lock is locked in rotation by the part (4 ') around the axis of rotation (A) of the fixing accessory (2E) in both directions of rotation, and the fixing accessory (2E ) is locked in rotation by said element (3E) for locking in rotation about the axis of rotation (A) of the fixing accessory and in both directions of rotation.

49. Method according to any one of claims 45 to 48, in which an element attached to the fixing accessory fixed in the groove, or the opening of the part (4; 4 ’) is fixed.

50. Method according to any one of claims 45 to 49, in which an attached element is fixed to said piece (4; 4 '; 4 ”) by previously passing the fixing accessory through said attached element and fixing the 'fixing accessory in the groove or opening (40) of the part (4; 4'; 4 ”) by means of each anchoring element.

51. Method according to any one of Claims 45 to 50, in which at least the side walls (40b) delimiting said groove or said oblong opening (40) in the room (4; 4 '; 4 ”), and preferably the whole room (4; 4 '; 4 ”), is made of a softer material than the constituent material of the anchoring element (s).

52. Method according to any one of claims 45 to 51 in which at least the side walls (40b) delimiting said groove or said opening (40) in the part (4; 4 '; 4 ”), and preferably all of the piece (4; 4 '; 4 ”), is in a material selected from the materials in the following list: wood, MDF type wood fibers, chipboard, plywood, composite material.

53. Method according to any one of claims 45 to 52, in which a part (22F) of the fixing accessory is used to fix said part (4 ”') to another element (7), and in particular to a wall. , including a vertical wall.

54. Use of the attachment accessory for an assembly of any one of claims 32 to 44 to fix an insert on said part of said assembly.

55. Use of the attachment accessory for an assembly of any one of claims 32 to 44 to fix said part of said assembly to another element, and in particular to a wall, and more particularly to a vertical wall.