The invention relates to a system for reversibly fastening a decorative trim on a surface of a leathercraft article made of flexible material such as leather, fabric or similar material.
Modern methods of cutting metal sheets make it possible to produce, from metals such as steel, brass, copper, aluminium, silver or gold, varied and fine cuts-outs comprising in particular piercings of different shapes, to produce items of jewellery.
It is known to fasten in a permanent manner on the inner face of the cut metal sheet a slightly flexible trim appearing through openings in said metal sheet, having a different aspect and colours in order to produce a decorative aesthetic effect.
Preferably, for the inner trim flexible materials are used, such as natural or synthetic fabrics, or leather. The rigid metal sheet then gives the general shape of the item of jewellery, as well as an exterior aspect that is resistant to wear, which may be shiny, satin or matt, and the inner trim forms a more flexible and warmer material, of which the nature, the aspect and the colour clearly stand out on the metal and appears through the decorative piercings.
It is notably possible to produce bracelets, wristlets, belts, breastpins, ear pendants or chokers as well as rings and necklaces, comprising a cut metal sheet forming a rigid structure having a particular curve depending on its function. For example, bracelets formed in a strip of rolled metal sheet are produced, having an opening making it possible to pass the wrist in an adjusted manner.
A first objective of the present invention is to be able to propose this type of decorative element for leathercraft articles. In this case,

the decorative element is not worn directly on the skin of the user, but has to be fastened on a flexible surface, such as fabric, leather or similar materials.
Furthermore, a problem that is posed with this type of jewellery is that with an inner trim fastened in a permanent manner on the metal sheet by different means to ensure a good maintaining as well as a pinning under the metal sheet, it is then not possible to change this trim in a simple and rapid manner.
Thus, a detachment of the trim generally requires the use of specialised tooling to remove notably tightening screws or rivets, and may damage the elements. The dismantling and reassembly operation may be slow and delicate so as to conserve an impeccable aspect and a finish in order to justify the decorative function.
It is then not possible to produce rapidly variants of the same decorative element, by changing the trim or the decorative metal sheet, whereas it is sought more and more to personalise fashion accessories to adapt them for example to the clothes worn, the types of activities planned, or to a need for frequent renewal so as not to repeat a same decoration.
The objective of the present invention is notably to avoid these drawbacks of the prior art and to enable a reversible fastening of a decorative trim on a flexible surface of a leathercraft article.
Reversible fastening is taken to mean a fastening that can be done and undone without a tool. On the contrary, permanent fastening is taken to mean a fastening requiring a tool to be done or undone (crimping, screwing, bonding, etc.).
Furthermore, the fastening system must enable a regular, precise and immediate alignment of the decorative element of the leathercraft article. In other words, the user does not have to be concerned with alignment when fastening the decorative element in order that it is in the position prescribed by the manufacturer of the leathercraft article.
To this end, the invention relates to a system for reversibly fastening a decorative trim on a surface of a leathercraft article made of

flexible material such as leather, fabric or similar material, the system comprising:
• a male part constituted of a rigid brooch having decorative piercings and
having a fastening face bearing:
o N fastening buttons, N being an integer greater than or equal to 1, each button comprising a shank and a free bulging end wider than the shank, and
o at least one lug for translationally locking the decorative trim;
• a female part comprising as many button holes as the male part
comprises buttons, each button hole being designed, in use, to be
fastened in a permanent manner on the surface made of flexible material
and to maintain in a reversible manner the bulging end of a button;
the or each locking lug being intended to engage, in use, in an orifice cut
into the decorative trim.
According to the invention, the reversible fastening of the brooch on the leathercraft article and the translational locking of the decorative trim between the brooch and the leathercraft article are dissociated. This enables a very precise reversible fastening in position of the brooch on the leathercraft article, while facilitating the change of the trim which is simply arranged between the brooch and the leathercraft article.
According to particular embodiments:
• the shank of each button may have a length such that, in position of use, when the free end of the or each button is engaged in the button hole(s), the decorative trim is compressed between the brooch and the surface of the leathercraft article;
• the fastening system may comprise two fastening buttons each arranged near to two opposite ends of the brooch, and at least one translational locking lug arranged between the two fastening buttons;

• the bulging end of the fastening buttons may be spherical and the female parts may be crimped in the leathercraft article in such a way that the fastening buttons and the button holes form press fasteners; and/or
• each female part may be a casing fastened onto the surface of the leathercraft article, each casing comprising a fastening face provided with a button hole constituted of a hole of diameter at least equal to the diameter of the bulging end and an oblong notch emerging in the hole and of diameter greater than the diameter of the shank of each button and less than the diameter of the bulging end of each button.
The invention also relates to a decorative element for a leathercraft article comprising a surface made of flexible material such as leather, fabric or similar material, the decorative element comprising a decorative trim and a preceding reversible fastening system.
The invention also relates to a leathercraft article comprising a surface made of flexible material such as leather, fabric or similar material, a decorative trim and a preceding reversible fastening system.
Advantageously, the leathercraft article may comprise, moreover, a set of interchangeable decorative trims and/or a set of brooches bearing different decorative piercings.
The invention also relates to a decorative kit for a leathercraft article comprising a set of interchangeable decorative trims and/or a set of brooches for a preceding reversible fastening system and each bearing different decorative piercings.
The invention also relates to a decorative trim intended to cooperate with a preceding reversible fastening system and comprising as many orifices as the male part of the fastening system comprises translational locking lugs, the orifices being arranged so as to receive, in use, the locking lug(s).
Each orifice may either traverse right through the trim, or be blind and only traverse the trim over a part of its thickness.

Other characteristics of the invention will be set forth in the description detailed hereafter, made with reference to the appended drawings, which respectively represent:
- figure 1, a schematic view in perspective of a leathercraft article provided with a first embodiment of a female part of the fastening system according to the invention;
- figure 2, a schematic view in perspective of a decorative trim and of a first embodiment of the male part of the fastening system according to the invention before mounting;
- figure 3, a schematic view in perspective of the trim and of the male part illustrated in figure 2 assembled, before fastening to the female part of the leathercraft article of figure 1;
- figure 4, a schematic view in section of a first embodiment of locking lugs of a fastening system according to the invention;
- figure 5, a schematic view in section of a second embodiment of locking lugs of a fastening system according to the invention;
- figure 6, a schematic view in perspective of a second embodiment of a female part of the fastening system according to the invention; and
- figure 7, a schematic view in perspective of a decorative trim and of a second embodiment of the male part of the fastening system according to the invention before mounting then fastening to the female part of the leathercraft article of figure 6.
The decorative element according to the invention is intended to be fastened on a leathercraft article M so as to be able to change decorative trim easily, without any tool, and in a precise manner.
Figure 1 illustrates, as an example, a pouch made of leather M, comprising two button holes 100 of press fasteners crimped in the flexible surface M1 of the flap.
Each button hole 100 is thus designed, in use, to be fastened in a permanent manner on the surface made of flexible material and to

maintain in a reversible manner the remainder of the fastening system and the
decorative trim illustrated in figures 2 and 3.
Figure 2 illustrates a trim 200 and a first embodiment 300 of
the male part of the fastening system according to the invention
5 According to the invention, the male part 300 is constituted of
a rigid brooch 301 having decorative piercings 302 and having a fastening
face 303.
The latter bears as many fastening buttons as the female part
comprises button holes. In the example illustrated, the fastening face 303
0 bears two buttons 304 each comprising a shank 304a and a free bulging end
304b wider than the shank 304a. In this embodiment, the free bulging end
304b is spherical and constitutes the male part of a press fastener.
Also according to the invention, the fastening face 303 bears,
moreover, at least one lug 305 for translationally locking the decorative trim
5 200. In the example illustrated, the two fastening buttons 304 are each
arranged near to two opposite ends of the brooch 301, and the lugs 305 for
translationally locking are arranged between the two fastening buttons 304.
Advantageously, the locking lugs are arranged symmetrically
so as to enable a positioning of the trim on its two faces, thus increasing the
0 aesthetic possibilities if the two faces have different aspects.
The decorative trim 200 comprises as many orifices 201 as
the male part 300 of the fastening system comprises translational locking lugs
305, the orifices being arranged so as to receive, in use, the locking lug(s)
305.
5 As illustrated in figure 3, the or each locking lug is intended to
be engaged, in use, in an orifice 201 cut into the decorative trim 200.
During assembly, the user covers the decorative piercings 302
with the trim 200 and translationally locks it by inserting the locking lugs 305 in
the orifices 201.
0 Advantageously, the trim has sufficient dimensions to be able
to be flush with the shanks 304a of the button 304.

According to an advantageous embodiment of the invention, the shank 304a of each button 304 has a length L1 (see figure 4) such that in position of use, when the free bulging end 304b of the or each button 304 is engaged in the button hole(s) 100, the decorative trim is compressed between the brooch 301 and the surface M1 of the leathercraft article M.
According to two variants illustrated in figures 4 and 5, the orifices 201 may be either through orifice, or blind orifices.
The trim 200 of the variant illustrated in figure 4 comprises orifices 201 traversing right through the trim.
Advantageously, the brooch 301 of the variant illustrated in figure 4 comprises translational locking lugs 305 which have a length such that they slightly exceed the thickness of the trim 200. Thus, in position of use, when the buttons 304 are engaged in the button holes 100 and retained by the reversible locking means 101 of the button hole (here a spring), the lugs 305 exert a local compression e1 against the flexible surface M1 of the article M. This ensures both an optimum translational locking of the trim 200, while facilitating the removal of the brooch by spring effect.
The trim 200’ of the variant illustrated in figure 5 comprises blind orifices 201’, that is to say not traversing right through the trim but only a part of its thickness.
This embodiment enables the translational locking of the trim while avoiding the rubbing of the lugs 305’ against the surface of the leathercraft article M.
In a similar manner to the variant of figure 4, the length of the lug 305’ may be chosen slightly greater than the depth of the orifice 201’ when the decorative trim 200 is flexible (for example made of leather). Thus, in position of use, when the buttons 304 are engaged in the button holes 100 and retained by the reversible locking means 101 of the button hole, the lugs 305’ exert a local compression against the bottom of the orifice 201’ and, because the trim and the surface of the leathercraft article are flexible, against the flexible surface M1 of the article M. This ensures both an optimum

translational locking of the trim 200, while facilitating the removal of the brooch
by spring effect.
The buttons 304 do not pin the decorative trim 200 onto the
fastening face of the brooch because the buttons are not in contact with the
5 decorative trim. Only the locking lugs 305 cooperate with the decorative trim,
either in compression, or in abutment, in order to block the translational
movement of the decorative trim.
The fastening position of the brooch 301 is thus precise
because it is determined by the cooperation of the buttons and the button
0 holes. The locking of the trim may be a little less precise because the
decorative piercings do not go beyond the trim 200. It thus suffices to lock it
translationally to prevent its edges appearing through the piercings 302 of the
brooch 301.
This simple maintaining enables an easy replacement by the
5 user who only has to separate the brooch 301 from the button holes 100 by
simple traction, to remove the trim 200 from the lugs 305 and to replace it or to
turn it over before repositioning everything. This removal may advantageously
be facilitated by the spring effect created by the compression zones of the
locking lugs. 0
A second embodiment of the invention is illustrated in figures
6 and 7.
In this second embodiment, each female part 400 is a casing
401 fastened on the surface of the leathercraft article by bonding, screwing or
5 crimping.
Each casing 401 comprises a fastening face 402 provided
with a button hole 403 constituted of a hole 403a of diameter greater than the
diameter of the bulging end 504b of the button 504 of the male part (see figure
7) and of an oblong notch 403b emerging in the hole 403a and of diameter
0 greater than the diameter of the shank 504a of each button 504 and less than
the diameter of the bulging end 504b of each button 504.

In this embodiment, the user engages the bulging part of each button in the hole 403a, then exerts a translational movement to make the shank slide into the notch.
Advantageously the bulging part is substantially cylindrical and may have a chamfered shape to favour the pinning of the brooch against the leathercraft article when the shanks of the buttons are engaged in the oblong notches of the button holes. Alternatively or in combination, the maintaining in position may be ensured by two magnets 404 arranged on either side of the button hole.
The invention also relates to a leathercraft article comprising a surface made of flexible material such as leather, fabric or similar material, a decorative trim and a system for reversibly fastening the decorative trim such as described previously. Advantageously, the leathercraft article is supplied with a set of interchangeable decorative trims and/or a set of brooches bearing different decorative piercings.
The invention also pertains to a decorative kit for a leathercraft article comprising a fastening system such as described previously and a set of interchangeable decorative trims and/or a set of brooches bearing different decorative piercings.

We claim:
1. System for reversibly fastening (100-300) a decorative
trim (200) on a surface (M1) of a leathercraft article (M) made of flexible
material such as leather, fabric or similar material, the system comprising:
• a male part (300) constituted of a rigid brooch (301) having decorative
piercings (302) and having a fastening face (303) bearing:
o N fastening buttons (304), N being an integer greater than or equal to 1, each button comprising a shank (304a) and a free bulging end (304b) wider than the shank (304a), and
o at least one lug (305) for translationally locking the decorative trim;
• a female part comprising as many button holes (100) as the male part
comprises buttons, each button hole (100) being designed, in use, to be
fastened in a permanent manner on the surface made of flexible material
and to maintain in a reversible manner the bulging end of a button;
the or each locking lug (305) being intended to engage, in use, in an orifice (201) cut into the decorative trim.
2. Fastening system according to claim 1, in which the shank (304a) of each button has a length (L1) such that in position of use, when the free end (304b) of the or each button is engaged in the button hole(s) (100), the decorative trim is compressed between the brooch and the surface of the leathercraft article.
3. Fastening system according to claim 1, comprising two fastening buttons (304) each arranged near to two opposite ends of the brooch, and at least one translational locking lug (305) arranged between the two fastening buttons.
4. Fastening system according to claim 1, in which the bulging end (304b) of the fastening buttons is spherical and the female parts (100) are crimped in the leathercraft article in such a way that the fastening buttons and the button holes form press fasteners.

5. Fastening system according to claim 1, in which each female part (400) is a casing (401) fastened on the surface of the leathercraft article, each casing comprising a fastening face (402) provided with a button hole (403) constituted of a hole (403a) of diameter greater than the diameter of the bulging end (504b), and an oblong notch (403b) emerging in the hole (403a) and of diameter greater than the diameter of the shank (504a) of each button (504) and less than the diameter of the bulging end (504b) of each button (504).
6. Decorative element for a leathercraft article comprising a surface made of flexible material such as leather, fabric or similar material, characterised in that it comprises a decorative trim (200) and a system for reversibly fastening (100-300) the decorative trim on the surface made of flexible material according to claim 1.
7. Leathercraft article (M) comprising a surface (M1) made of flexible material such as leather, fabric or similar material, characterised in that it comprises a decorative trim (200) and a system for reversibly fastening (100-300) the decorative trim on the surface made of flexible material according to claim 1.
8. Leathercraft article according to claim 7, further comprising a set of interchangeable decorative trims and/or a set of brooches bearing different decorative piercings.
9. Decorative kit for a leathercraft article comprising a surface made of flexible material such as leather, fabric or similar material, characterised in that it comprises a set of interchangeable decorative trims and/or a set of brooches for a fastening system according to claim 1, and each bearing different decorative piercings, in which:

• The decorative trims comprise as many orifices (201, 201’) as the male part of the fastening system comprises translational locking lugs, the orifices being arranged so as to receive, in use, the locking lug(s); and/or
• the brooches each bear different decorative piercings (302) and have a fastening face (303) bearing:

o N fastening buttons (304), N being an integer greater than or equal to 1, each button comprising a shank (304a) and a free bulging end (304b) wider than the shank (304a), and
o at least one lug (305) for translationally locking the decorative trim.
10. Decorative trim (200, 200’) intended to cooperate with a fastening system according to claim 1, characterised in that it comprises as many orifices (201, 201’) as the male part of the fastening system comprises translational locking lugs, the orifices being arranged so as to receive, in use, the locking lug(s).
11. Decorative trim according to claim 10, in which each orifice traverses right through the trim.
12. Decorative trim according to claim 10, in which each orifice is blind and only traverses the trim over a part of its thickness.