A timepiece device including a first component fixed to a second component by plastic deformation

Abstract

To provide a horology device and a horology device manufacturing method that make it possible to avoid applying excessive driving-on force.SOLUTION: A horology device (100) includes: a first component (10) having at least one plastically deformable portion (12a, 12b); and a second component (20) provided with a surface (24), notably a surface of revolution and / or of guidance and / or of attachment of the first component relative to the second component. The first component is fixed permanently to the second component by plastic deformation of the at least one portion against the second component, in a plane perpendicular or substantially perpendicular to an axis (A2) of the surface of the second component.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The invention relates to a timepiece arrangement comprising two parts fixed to one another. The invention also relates to a method for manufacturing such a timepiece arrangement. The invention also relates to a clock movement comprising such a timepiece arrangement. The invention finally relates to a timepiece comprising such a timepiece arrangement or such a clock movement. [Background technology]

[0002] From the patent DE 10 200 03 13 599 A1 different alternative forms of oscillator are known, each taking the form of a balance wheel / hairspring combination. In each of these embodiments, the elements forming the oscillator are hammered into the balance staff. In one specific variant embodiment, the balance plate covers the balance staff over substantially its entire height, with only the tenons formed at the ends of the staff being visible. Such a design is advantageous in terms of simplifying the shape of the balance staff, but its body then takes the form of a smooth cylinder, which is not optimal as the forces arising from the hammering in of the plate may be too large for the balance staff, especially if it is intended to be absorbed by the balance staff tenons, the dimensions of which are much smaller than the body of the balance staff. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2013064390A1 Summary of the Invention [Problem to be solved by the invention]

[0004] The object of the invention is to provide an alternative timepiece device to, and to improve, those known from the prior art. In particular, the invention proposes a timepiece device which makes it possible to avoid the application of excessive striking forces. The invention also relates to a method for the manufacture of said timepiece device. [Means for solving the problem]

[0005] According to the invention, the timepiece device comprises the claims 1 in is defined.

[0006] Various embodiments of the timepiece device are defined in claims 2 to 10.

[0007] According to the invention, a method for manufacturing a timepiece device is defined in claim 11.

[0008] An embodiment of the method is defined in claim 12.

[0009] According to the invention, the clock movement is 13 is defined as:

[0010] According to the invention, the watch comprises the following claims 14 is defined as:

[0011] The accompanying drawings illustrate three embodiments of the watch according to the invention. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a schematic diagram of a vertical section of a first embodiment of a timepiece, including a first embodiment of a timepiece device. [Diagram 2] FIG. 2 is a longitudinal section of a first part of a first embodiment of a timepiece device. [Diagram 3] FIG. 3 is a perspective view of the first embodiment of the timepiece device. [Figure 4] FIG. 4 shows a longitudinal section through a first embodiment of a timepiece device, in which the device is placed on the mounting part during its manufacturing method, in particular during the plastic deformation of the first part. [Diagram 5] FIG. 5 is a schematic diagram of a vertical section of a second embodiment of a timepiece, including a second embodiment of a timepiece device. [Figure 6] FIG. 6 is a schematic diagram of a vertical section of a third embodiment of a timepiece, including a third embodiment of a timepiece device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] A first embodiment of a timepiece 100 is described below with reference to figures 1 to 4. The timepiece may be a watch, in particular a wristwatch.

[0014] The watch comprises a watch movement 200. Preferably, the watch movement is a mechanical movement, in particular an automatic movement.

[0015] The clock movement 200 includes a clock mechanism 100 rotatably mounted relative to a frame 99 of the movement.

[0016] The clock device (100) includes: a first part 10 comprising at least one plastically deformable portion 12a, 12b; a second part 20 provided with a surface 24, in particular a rotation and / or guiding and / or mounting surface of the first part relative to the second part; Includes.

[0017] The first part is permanently fixed to the second part by plastic deformation of at least one portion 12a, 12b relative to the second part in a plane perpendicular or substantially perpendicular to the axis A2 of the surface 24 of the second part.

[0018] Optionally, the second part 20 is also provided with elements 23a, 23b for guiding and / or mounting of the timepiece mechanism 100 relative to the clock movement, in particular to the frame 99 of the clock movement.

[0019] In this first embodiment, the timepiece device 100 is a balance wheel 100 of a balance wheel / hairspring type oscillator 101. The oscillator comprises a balance wheel and a hairspring 40. For this purpose, the balance wheel is rotatably mounted in a bearing added to the frame 99 of the timepiece movement.

[0020] Here, the term "balance wheel" refers to a balance wheel assembly, i.e., an assembly including at least one flywheel 30 and a balance shaft 20.

[0021] Here, the balance wheel or balance wheel assembly comprises a first part in the form of a plate 10 and a second part in the form of a balance stem 20 .

[0022] The balance staff 20 has as its geometric axis an axis A2 which is the axis of rotation of the balance staff, and in particular of the surface 24 of the balance staff 20.

[0023] Here, the balance wheel or balance wheel assembly has the feature that it comprises a plate 10 which is not fixed to the balance stem 20 by hammering, as is known from the prior art, but rather by attachment of at least one portion 12a, 12b of the plate 10 to the balance stem 20, in particular by plastic deformation, in a plane perpendicular or substantially perpendicular to the axis of rotation A2 of the balance stem 20 and in particular to the surface 24 of the balance stem 20.

[0024] The balance wheel 100 includes a plate 10 that covers or covers the balance stem 20 over substantially the entire height of the balance stem 20. For example, the plate 10 covers the stem 20 over its entire length, excluding the tenons and possibly excluding the tenon shafts. Alternatively, the plate may cover or cover a lesser portion of the stem. Depending on preference, the plate covers or covers at least 50% or at least 70% of the entire length of the stem 20.

[0025] The plate 10 has a cylindrical structure including a through opening 11 of axis A1 in which the balance shaft 20 is intended to be housed. The plate 10 further includes at least one portion 12a, 12b of low mechanical strength that can be plastically deformed by using a suitable tool, for example pliers. Figure 2 illustrates the plate before plastic deformation that allows it to be fixed to the shaft 20.

[0026] When the plate 10 is assembled to the balance shaft 20, and in particular when it is fixed, the axis A1 is parallel to the axis A2, and in particular coincides with the axis A2.

[0027] The plate 10 may also include a portion 13 for receiving a flywheel 30 .

[0028] The plate 10 may also include a portion 14 for receiving a collet 40 (not shown) of a hairspring.

[0029] The plate 10 may also include a portion 15 taking the shape of a disk including a pin 16 .

[0030] If desired, the flywheel 30 can be assembled into the receiving part 13 by hammering.

[0031] If desired, the collet 40 can be assembled into the receiving part 14 by hammering.

[0032] Also, if desired, the portion 15 may be formed integrally with the plate 10, i.e. the plate and the portion 15 may be cast in one piece. Alternatively, the portion 15 may be added to the plate, for example by stamping.

[0033] The wall thickness e12 of the plate 10 in at least one portion 12a, 12b is substantially smaller than the wall thickness e13 of the receiving portion 13. In particular, e12 <e13 / 2; and / or e12<0.2mm, or e12<0.15mm, or e12<0.12mm.

[0034] Preferably, the plate 10 comprises two portions 12a, 12b of reduced mechanical strength situated on either side of a portion 13 for receiving the flywheel 30 along the axis A1.

[0035] All or part of these portions 12a, 12b are plastically deformable relative to axis 20 in a plane perpendicular or substantially perpendicular to axis A1 or axis A2.

[0036] Each of portions 12a, 12b may, for example, be plastically deformed at isolated points. More specifically, portions 12a, 12b may include protrusions or bosses within aperture 11 resulting from localized plastic deformation of the material of portions 12a, 12b about axis A1 or axis A2.

[0037] Preferably, the material of the portions 12a, 12b may be plastically deformed over the entire surface of the portions 12a, 12b, in particular over the entire surface of revolution of the portions 12a, 12b, in other words, the portions 12a, 12b may experience an annular attachment allowing a plastic deformation of the portions 12a, 12b over 360 degrees around the axis A1 or the axis A2, as shown in FIG.

[0038] The wall thickness e12 of the portions 12a, 12b may be the same. Alternatively, the wall thickness e12 of the portions 12a, 12b may be different.

[0039] Preferably, the core 20, in particular the surface 24, may comprise receiving portions 22a, 22b located at the height of the portions 12a, 12b when the core is inserted into the plate opening 11, in which receiving portions may accommodate the material plastically deformed in the area of ​​the portions 12a, 12b. The portions 22a, 22b may, for example, take the form of a groove extending over 360° around the axis A2, in particular when the portions 12a, 12b are plastically deformed over 360° around the axis A1 or A2. Alternatively, the portions 22a, 22b may extend over an angle smaller than 360°. Each portion 22a, 22b may comprise several parts, in particular four parts, distributed evenly or unevenly around the axis A2.

[0040] The grooves may have a U-shaped cross-section, as shown in Figures 1 and 3. Alternatively, the grooves may have a V-shaped cross-section, or a square wave or rectangular cross-section.

[0041] Advantageously, the plastic deformation or deformation of one or more of the portions 12a, 12b provides the plate 10 with a torque resistance to true 20 of greater than 3 mN.m, or greater than 5 mN.m. Advantageously, the torque resistance of the plate 10 to true 20 is greater than 5 mg.cm 2 Greater than or equal to 10 mg.cm 2 The torque resistance is sufficient to allow the plate 10 to be permanently fixed on the stem 20 to which the flywheel 30, which has a greater inertia, is attached.

[0042] Advantageously, the material of the true 20 is selected such that it is able to spread the compressive forces exerted by the pliers during the plastic deformation step of the portions 12a, 12b of the plate 10. More specifically, the material of the true 20 is selected such that the plastic deformation step of the portions 12 of the plate 10 does not invalidate the geometrical integrity of said true.

[0043] Advantageously, the material of the plate 10, and in particular of at least one of the regions 12a, 12b, is selected so as to be plastically deformable. Preferably, the material of the plate 10 is a copper-containing alloy, such as a CuBe2 alloy or a CuNiSn alloy, such as CuNi15Sn8 or the "ToughMet" alloy. Such an alloy has the advantage of exhibiting good deformability. Its hardness may be of the order of 250 Hv and may reach up to 400 Hv after heat treatment.

[0044] Preferably, the Vickers hardness of the material selected for plate 10 is 2 to 6 times lower than the Vickers hardness selected for plate 20.

[0045] The guiding and / or fixing elements 23a, 23b preferably comprise tenons 23a, 23b, in particular tenons having the shape of the axis of rotation A2, which preferably cooperate with bearings provided in the frame of the clock part to guide the clock mechanism with respect to the axis A2 with reference to the frame of the clock movement.

[0046] A second embodiment of a timepiece device 100' is described below with reference to figure 5. The timepiece may be a miniature timepiece, in particular a wristwatch.

[0047] The watch includes a watch movement 200'. The watch movement is an electronic or mechanical movement, in particular an automatic movement.

[0048] The clock movement 200' includes a clock mechanism 100' rotatably mounted relative to a movement frame 99'.

[0049] The clock device 100' includes: a first part 10' comprising at least one plastically deformable portion 12a', 12b'; a second part 20' provided with a surface 24', in particular a rotation and / or guiding and / or mounting surface of the first part relative to the second part; Includes.

[0050] The first part is permanently fixed to the second part by plastic deformation of at least one portion relative to the second part in a plane perpendicular or substantially perpendicular to the axis A2' of the surface 24' of the second part.

[0051] Preferably, the second part 20' is also provided with elements 23a', 23b' for guiding and / or mounting of the clock mechanism to the clock movement, in particular to the frame of the clock movement.

[0052] In this second embodiment, the timepiece device is a toothed disc 100', for example a third gear disc 100' of a gear train of a timepiece movement.

[0053] The overall structure of the timepiece device is the same as that described in the first embodiment.

[0054] The disk 100' has as a first part a pinion 10' which covers or encases a second part 20'. The second part is a tenon arbor 20'. The pinion 10' covers the tenon arbor 20' over substantially the entire height of the tenon arbor. The arbor 20' is mainly cylindrical and smooth. In this case the axis A2' is the axis of rotation of the second part.

[0055] In the second embodiment, the pinion 10' comprises an axis A1' and two portions 12a', 12b' of reduced mechanical strength arranged on either side of the toothed portion 13' along the axis A1'.

[0056] Optionally, the pinion 10' may include a receiving portion 14' for receiving a third gear wheel 30'.

[0057] Advantageously, the plastic deformation or deformation of portions 12a', 12b' provides pinion 10' with sufficient torque resistance to stud 20' to enable torque transmission between pinion 10' and stud 20', and thus between gear 30' and stud 20'.

[0058] Advantageously, the plastic deformation or deformation of portions 12a', 12b' provides pinion 10' with a torque resistance on tines 20' of greater than 3 mN.m, or greater than 5 mN.m.

[0059] Preferably, the core 20', and in particular the surface 24', may include receiving portions 22a', 22b' located in the portions 12a', 12b' when the core is inserted into the opening 11' of the first part, and said receiving portions may accommodate the material plastically deformed in the portions 12a', 12b'.

[0060] The material of the pinion 10' may be steel, e.g. lead-free steel, such as Finemac steel. The hardness of the pinion material after heat treatment is in the order of 500 to 700 Hv. The heat treatment of the pinion may be performed at the time when the pinion 10' is assembled to the tine 20'. In that case, the material of the tine 20' is selected to withstand the heat treatment of the pinion 10'. More specifically, the material of the tine 20' is selected such that the heat treatment step of the pinion 10' does not invalidate the properties or geometrical integrity of said tine.

[0061] The guiding and / or fixing elements 23a', 23b' preferably comprise tenons 23a', 23b', in particular tenons having the shape of a rotation axis A2', which preferably cooperate with bearings provided in the frame of the clock movement in order to guide the clock mechanism with respect to the axis A2' relative to the frame of the movement.

[0062] A third embodiment of a watch 100'' is described below with reference to figure 6. The watch may be a miniature watch, in particular a wristwatch.

[0063] The watch includes a watch movement 200''. The watch movement may be an electronic movement or a mechanical movement, in particular an automatic movement.

[0064] The clock movement 200'' includes a clock mechanism 100'' mounted with the ability to rotate and translate relative to a movement frame 99''.

[0065] The clock device 100 ″ is a first part 10″ comprising at least one plastically deformable portion 12a″; a second part 20″ provided with a surface 24″, in particular a rotation and / or guiding and / or mounting surface of the first part relative to the second part; Includes.

[0066] The first part is permanently fixed to the second part by plastic deformation of at least one portion relative to the second part in a plane perpendicular or substantially perpendicular to the axis A2'' of the surface 24'' of the second part.

[0067] Optionally, the second part 20'' is also provided with elements 23a'', 23b'' for guiding and / or mounting of the timepiece arrangement to the clock movement, in particular to the frame of the clock movement.

[0068] In the second embodiment, the clock device is a vertical clutch disc 100'', for example a toothed vertical clutch disc 100''.

[0069] The overall structure of the timepiece device is the same as that described in the first and second embodiments.

[0070] The disk 100'' comprises as a first part a gear wheel 10'' which partially covers a second part 20''. The gear wheel 10'' may comprise, for example, end teeth 13''. The second part is a stud 20'', which allows for swiveling and translational movements. The stud 20'' is mainly cylindrical and smooth. The stud 20'', in particular the guiding and / or mounting elements, preferably comprises a body 23a'', designed in particular to swivel, which is guided in a bearing belonging to the frame 99'', and an end 23b'', which acts as a tenon and cooperates with a cam or movement axis 200'', for the rotational and translational guidance of the stud 20'' with respect to the axes A1'' and A2'' of the gear wheel 10'' and stud 20'', respectively.

[0071] In the third embodiment, the gear 10'' comprises a single portion 12a'' with reduced mechanical strength, located at one end of the gear 10'', for example along the axis A1''. The arbour 20'', in particular the surface 24'', may comprise a receiving portion 22a'' which is located at the height of the portion 12a'' when the arbour 20'' is inserted into the opening 11'' of the gear 10'', and in which the plastically deformed material may be accommodated.

[0072] An embodiment of a method for manufacturing the above-mentioned timepiece devices 100, 100', 100'' will be described by specifically applying it to the first embodiment. The method is similarly applicable to the second and third embodiments of the timepiece devices.

[0073] The method includes the following steps. - providing a first part 10, 10', 10'' comprising at least a plastically deformable portion 12a, 12b; 12a', 12b'; 12a'', in particular (for the first embodiment) providing the first part previously positioned and held in the mounting part 5, in particular via a portion 15 guided and abutted in the mounting part 5, as shown in FIG. 4. - providing a second part 20, 20', 20'', provided with surfaces 24; 24'; 24'', in particular rotation surfaces and / or guiding and / or mounting surfaces of the first part relative to the second part and preferably guiding and / or mounting elements 23a, 23b; 23a', 23b'; 23a'', 23b'', of the horological arrangement relative to the movement. - positioning the first part with respect to the second part, in which the second part is for example inserted into the through opening 11;11';11'' of the first part until the first tenon 23a lies in abutment with the first bearing 6a which replicates a bearing of the clock movement, in particular a bearing of a plate of the clock movement. The diameter d11 of the opening of the first part and the diameter d20 of the body or surface 24;24';24'' of the second part are selected such that the radial clearance between the first part and the second part allows centering within the required tolerances, in particular of the balance wheel and the hairspring, in particular (with regard to the first embodiment) of the tenons 23a, 23b. - fixing the first part to the second part by plastic deformation of at least one portion 12a, 12b; 12a', 12b'; 12a'' of the first part relative to the second part in a plane perpendicular or substantially perpendicular to the axis A2, A2', A2'' of a surface 24; 24'; 24'' of the second part.

[0074] Advantageously, during the positioning step, a second bearing 6b is used which replicates the bearing of the clock movement, in particular the bearing of the bridge of the clock movement, opposite the second bearing 23b. In this configuration, the areas 12a, 12b respectively face areas 22a, 22b (not shown in FIG. 4) of the arbor 20, with an axial clearance offset.

[0075] Advantageously, the fixing step comprises the use of at least one pair of pliers to plastically deform at least one plastically deformable portion. Alternatively or additionally, the fixing step may comprise a simultaneous deformation of several deformable portions. Alternatively, the operations of squeezing the various zones may be performed after each other. More generally, the deformation may be performed by applying a mechanical action or force perpendicular to the axes A1, A2.

[0076] The deformation can be achieved by compressing sections 12a, 12b; 12a', 12b'; 12a'' against sections 22a, 22b; 22a', 22b'; 22a'' using a tool 7 having at least one pair of pliers jaws 7a, 7b.

[0077] Optionally, the method may include the step of heat treating the first component after the fixing step.

[0078] At the end of the above-mentioned steps, the areas 12a, 12b; 12a', 12b'; 12a'' of the first part are in contact with the areas 22a, 22b; 22a', 22b'; 22a'' of the second part, respectively. In the case of the first embodiment, the above conditions result in a torque resistance of the plate 10 on the arbor 20 of more than 3 mN.m, or more than 5 m.Nm, sufficient to enable the plate 10 to be permanently fixed to the arbor 20 during conventional operation of the watch or during bangs that the watch may experience.

[0079] In the case of the first embodiment, in order to simplify Fig. 4, elements 30 and 40 are not shown. Preferably, these elements are assembled to the first part 10 before the first part 10 is assembled to the stud 20. Thus, the tenon 23a does not experience the forces resulting from the assembly of the elements 30, 40 to the first part 10. Alternatively, the attachment of the first part 10 to the second part 20 can be performed upstream.

[0080] Advantageously, the assembly method does not subject the balance stem to axial or substantially axial forces that may be excessive for the stem in the watch size category, especially when such forces are intended to be absorbed by the balance stem tenon, the dimensions of which are clearly much smaller than the body of the stem. Moreover, the assembly method does not require a stem made of a material with a plastic zone. In this respect, the assembly method constitutes a particularly advantageous alternative to the conventional methods of assembling parts to the stem by driving or riveting.

[0081] Whatever the embodiment, at least one plastically deformable part is made of a material having a plastic deformation zone. Optionally, said at least one part is made of a shape and / or material that allows to form a zone of low mechanical strength, which makes it possible to limit the mechanical forces that need to be exerted on said part during its plastic deformation.

[0082] Whatever the embodiment, the second part preferably comprises a surface 24; 24'; 24'' for guiding the first part relative to the second part. The surface is preferably a rotating post, or one or more parts of a rotating post. Thus, the surface allows positioning the first part relative to the second part, at least in a particular direction. The surface preferably cooperates with an opening in the first part for performing the function.

[0083] Whatever the embodiment, the second part preferably comprises a surface 24;24';24'' for attachment of the first part to the second part. During the plastic deformation of the first part, a boss is formed in the opening, in particular a protuberance of material which abuts against the fixed surface of the second part. Due to the plastic nature of the deformation of the first part, even after application of the deformation action of the first part, the boss remains in contact with the fixed surface of the second part. Due to the friction of the fixed surface at the contact surface between the first and second parts and / or due to the interference of the fixed surface, tangential loads with respect to the axis A1;A1';A1'' or A2;A2';A2'' can be transferred from one part to the other. Furthermore, due to the friction of the fixed surface 24;24';24'' at the contact surface between the first and second parts and / or due to the interference of the fixed surface, axial forces with respect to the axis A1;A1';A1'' or A2;A2';A2'' can be transferred from one part to the other. The first and second parts are thus fixed, more particularly permanently fixed, to one another.

[0084] Advantageously, the guide surface 24;24';24'' is a rotating surface and / or the fixed surface 24;24';24'' is a rotating surface.

[0085] In either embodiment, the axes A1;A1';A1'' and A2;A2';A2'' advantageously coincide once the first part has been assembled to the second part, in particular fixed to the second part.

[0086] In either embodiment, the plastic deformation is advantageously performed in a plane perpendicular to the axes A1;A1';A1'' and A2;A2';A2''. The mechanical actions applied to bring about the deformation are therefore applied mainly and / or substantially in directions contained in said plane. As a result, the material is mainly deformed in these directions, and the height of the nodules is determined by these directions.

[0087] In either embodiment, the second part may be a tine 20; 20'; 20'' and / or the guiding and / or mounting element of the watch mechanism may comprise one or more tenons 23a, 23b; 23a', 23b'; 23a'', 23b'', in particular in the case of the first embodiment one or more tenons having a diameter smaller than 0.1 mm or smaller than 0.08 mm.

[0088] In any embodiment, The second part may be made of a material that does not have a plastic deformation zone, and / or the second part may be made of a ceramic, in particular zirconia, in particular yttrium-doped zirconia, in particular 3% (by weight) yttrium-doped zirconia, or - Monocrystalline alumina, or - Alumina-zirconia compound It may be made of and / or the second part may have a hardness greater than 1000Hv or greater than 1100Hv; and / or The second part may have a Vickers hardness that is between two and six times higher than the Vickers hardness of the first part.

[0089] The material of the second part 20; 20'; 20'' is preferably selected such that the plastic deformation step of the portions 12a, 12b; 12a', 12b'; 12a'' of the first part 10, 10', 10'' does not invalidate the geometrical integrity of the second part. Advantageously, the material of the second part may be selected such that the heat treatment step of the first part does not invalidate any of the geometrical integrity properties of the second part.

[0090] Due to the inherent properties of ceramics, being very hard (Vickers hardness greater than 1000 Hv or between 1100 Hv and 1600 Hv), the second part 20 does not undergo any changes during the plastic deformation step of the part of the first part. Moreover, such a material is particularly advantageous for the function of the stud, and in particular for the function of the balance spring, since the stud advantageously comprises at its ends tenons 23a, 23b intended to cooperate with the bearings of the clock movement, in particular by contact. These tenons may have a diameter d23 different from the diameter d20 of the body or surface 24 of the stud 20, smaller than 0.1 mm, or even smaller than 0.08 mm. Due to the inherent properties of ceramics mentioned above, the tenons do not dent during the strike and the chronometric performance of a balance wheel / hairspring type oscillator including a balance wheel according to the invention is durably maintained. Advantageously, in the event of a significant blow, these tenons will not deform, unlike steel tenons which will bend and therefore adversely affect the chronometry of the watch movement. Furthermore, ceramics offer the further advantage that they are particularly insensitive to magnetic fields, and therefore will not affect the running of the watch even if they are exposed to magnetic fields, especially those stronger than 80 kA / m (1000 G).

[0091] In either embodiment, the second part, in particular the surface 24; 24'; 24'', may comprise at least one recess 22a, 22b; 22a', 22b'; 22a'', in particular a groove extending around the entire circumference of the second part or around part of the second part, in particular a groove having a U-shaped or V-shaped or rectangular cross-section, wherein the at least one recess receives at least a part of the at least one deformed portion 12a, 12b; 12a', 12b'; 12a'' of the first part.

[0092] In any embodiment, the at least one plastically deformable portion may have a first wall thickness e12 that is smaller than a second wall thickness e13 of at least one other portion of the first part or the remainder of the first part, e.g. the first thickness is smaller than half the second thickness, and / or the first thickness is smaller than 0.2 mm, or smaller than 0.15 mm, or smaller than 0.12 mm.

[0093] In either embodiment, the torque resistance of the first part to the second part about axis A2;A2';A2'' may be greater than 3mN.m, or greater than 5mN.m.

[0094] In either embodiment, the openings 11; 11'; 11'' may be through openings, i.e. passing completely through the first part. Alternatively, the openings may not pass completely through.

[0095] In either embodiment, the material of the first part is advantageously selected to be plastically deformable. The material of the first part 10, 10', 10'' is, for example, a copper-containing alloy such as a CuBe2 alloy or a CuNiSn alloy such as CuNi15Sn8 or a "ToughMet" alloy. The material of the first part 10, 10', 10'' may also be a lead-free seal, such as Finemac steel.

[0096] In the described embodiment, the second part 20; 20'; 20'' is a trunque which guides rotation with the help of guiding elements 23a, 23b; 23a', 23b'; 23a'' of the first part, which are fixedly attached to the second part. To complement this, in a third embodiment, the second part is also a translationally guiding trunque, with the aid of guiding elements 23b'' of the first part, which are fixedly attached to the second part. Alternatively, in other embodiments, the second part may simply be a trunque which provides translational guidance of the first part, which is fixedly attached to the second part.

[0097] Further alternatively, the second part may comprise a fastening element, in particular a fastening surface, for fastening the horological device. For example, the second part may be designed to be fastened to the movement, in particular to the movement blank, via a fastening element or surface. In such an embodiment, the horological device may be completely fixed relative to the frame of the movement.

[0098] In either embodiment, the first part may also at least partially cover or cover the second part over substantially the entire length of the second part measured about axis A1, A1', A1'' or A2, A2', A2''. For example, the first part may cover or cover the second part over the entire length of the second part, excluding the tenon and possibly excluding the pivot axis. Alternatively, the first part may cover or cover a lesser portion of the second part. Depending on preference, the first part may cover or cover a portion representing at least 50%, or at least 70% of the length of the second part.

[0099] The invention also relates to said first part, from which the timepiece device according to the invention is intended to be made.

[0100] The invention further relates to said second part, intended for the creation of a timepiece device according to the invention.

[0101] In this specification, "permanently fixed" or "permanently attached" means a torque-resistant fixation of a first part to a second part that prevents any movement of the first part relative to the second part during normal operation of the watch, for example a torque resistance greater than 3 mN.m or greater than 5 mN.m.

[0102] In this specification, "plastic deformation" refers without distinction to the action or the result of said action. [Explanation of symbols]

[0103] 10 First Part 12a Plastically deformable part 12b Plastically deformable part 20 2nd Part 22a Recess 22b Recess 23a Tenon 23b Tenon 24 Surface 30 Flywheel 40 Beard Ball 99 frames 100 Clock device

Claims

1. A first component (10; 10'; 10'') including at least one plastically deformable portion (12a, 12b; 12a', 12b'; 12a''), a second component (20; 20'; 20'') provided with a surface (24; 24'; 24''), a timepiece (100; 100'; 100'') including: the first component is permanently fixed to the second component by plastic deformation of the at least one portion (12a, 12b; 12a', 12b'; 12a'') with respect to the second component in a plane perpendicular or substantially perpendicular to the axis (A2; A2'; A2'') of the surface (24; 24'; 24'') of the second component; the second component includes at least one recess (22a, 22b; 22a', 22b'; 22a''), and the at least one recess receives at least a part of the at least one deformable portion (12a, 12b; 12a', 12b'; 12a'') of the first component; a timepiece (100; 100'; 100'').

2. The first component is a balance wheel plate, A timepiece according to claim 1.

3. The first component is a pinion (10'), A timepiece according to claim 1.

4. A first component (10; 10'; 10'') including at least one plastically deformable portion (12a, 12b; 12a', 12b'; 12a''), a second component (20; 20'; 20'') provided with a surface (24; 24'; 24''), a timepiece (100; 100'; 100'') including: the first component is permanently fixed to the second component by plastic deformation of the at least one portion (12a, 12b; 12a', 12b'; 12a'') with respect to the second component in a plane perpendicular or substantially perpendicular to the axis (A2; A2'; A2'') of the surface (24; 24'; 24'') of the second component; the first component is a pinion (10'), a timepiece (100; 100'; 100'').

5. The pinion includes a portion (14') for receiving a gear wheel (30'), A timepiece according to claim 3 or 4.

6. The second component is a case (20; 20'; 20'') and / or the second component includes elements (23a, 23b; 23a', 23b'; 23a'', 23b'') for guiding and / or fixing the timepiece, A timepiece according to any one of claims 1 to 5.

7. The second component is made of a material having no plastic deformation region and / or the second component is made of ceramic, and / or the second component has a hardness greater than 1000 Hv, or the second component has a Vickers hardness 2 to 6 times higher than the Vickers hardness of the first component, The timepiece device according to any one of claims 1 to 6.

8. The at least one plastically deformable portion has a first wall thickness (e12) smaller than a second wall thickness (e13) of at least one other portion of the first component, The timepiece device according to any one of claims 1 to 7.

9. The plane includes a portion (13) for receiving a flywheel (30), and / or a portion (14) for receiving a weight ball (40) of a hairspring, and / or a portion (15) for forming a disk including a pin (16), The timepiece device according to any one of claims 1 to 8.

10. The torque resistance of the first component to the second component about the shaft (A2; A2'; A2'') is greater than 3 mN·m, The timepiece device according to any one of claims 1 to 9.

11. A method for manufacturing a timepiece device (100; 100'; 100'') according to any one of claims 1 to 10, providing a first component (10; 10'; 10'') including at least one plastically deformable portion (12a, 12b; 12a', 12b'; 12a''), providing the second component (20; 20'; 20'') having a surface (24; 24'; 24'') and optionally having guide and / or mounting elements (23a, 23b; 23a', 23b'; 23a'', 23b'') of the timepiece device, positioning the first component relative to the second component, fixing the first component to the second component by plastic deformation of the at least one portion (12a, 12b; 12a', 12b'; 12a'') of the first component relative to the second component in a plane perpendicular or substantially perpendicular to the shaft (A2; A2'; A2'') of the surface (24; 24'; 24'') of the second component, A manufacturing method including.

12. The fixing step includes the use of at least one set of pliers to plastically deform the at least one portion and / or the fixing step includes simultaneous plastic deformation of several deformable portions, The method according to claim 11.

13. A timepiece movement (200; 200'; 200'') including the timepiece device according to any one of Claims 1 to 10, wherein the timepiece device is attached to the frame (99; 99'; 99'') of the timepiece movement with the ability to rotate and / or translate relative to the frame, or is fixed to the frame (99; 99'; 99'') of the timepiece movement.

14. A timepiece (300; 300'; 300'') including the timepiece device (100; 100'; 100'') according to any one of Claims 1 to 10 or the timepiece movement (200; 200'; 200'') according to Claim 13.

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