Horological component intended to receive member driven thereinto

JP2021056211A5Active Publication Date: 2025-02-10ROLEX SA
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Patent Information

Application Number
JP2020142239
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2019-08-27
Filing Date
2020-08-26
Publication Date
2025-02-10
Estimated Expiration
2040-08-26

AI Technical Summary

Technical Problem

Existing watch components, particularly gears like the escape wheel, face issues with deformation and low clamping force during assembly, especially when made from nickel-based alloys using LIGA machining, which are fragile and difficult to integrate aesthetically.

Method used

A watch component design featuring a first opening to receive a member, with multiple elastically deformable elements and connecting elements that minimize deformation by allowing radial expansion of secondary openings, maintaining the hub's integrity and reducing stress on the outer edge.

Benefits of technology

The design ensures robust assembly without deforming the hub or outer edge, providing a reliable and compact attachment to the shaft while maintaining the component's aesthetic integrity.

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Abstract

To provide a horological component capable of realizing high strength while avoiding deformation of the outside periphery of the component when a member is driven into the component.SOLUTION: A horological component 100 has a first opening intended to receive a member 20 when the member is driven into the first opening. The component includes an axis A1 centered in the first opening, and at least two structures 10 intended to receive the member. Each receiving structure comprises a receiving element intended to come into contact with the member and extending at least substantially orthoradially relative to the axis, first and second connecting elements extending radially relative to the axis from first and second ends of the receiving element, and first and second elastically deformable element extending orthoradially relative to the axis. The first connecting element mechanically connects the first end of the receiving element to the first elastically deformable element, and the second connecting element mechanically connects the second end of the receiving element to the second elastically deformable element.SELECTED DRAWING: Figure 1
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Description

Technical Field

[0001] The present invention relates to a timepiece component intended to receive a member to be driven in. The present invention also relates to an assembly including this type of component and a member mounted or driven into this component. The present invention further relates to a movement including this type of component or this type of assembly. The present invention finally relates to a timepiece, particularly a small timepiece, including this type of movement, this type of assembly or this type of component.

Background Art

[0002] The process of assembling some gears, particularly sun gears, having the feature of being manufactured by LIGA processing from nickel-based alloys constitutes an improvement method regarding their robustness and reproducibility.

[0003] The prior art documents disclose a number of elastic structural shapes adapted to enable driving fragile timepiece components onto a shaft. This type of structure is usually adapted for the purpose of maximizing the clamping force on the shaft while minimizing the driving force. Such a structure includes, for example, elastic arms designed to be actuated by bending during the driving of the shaft.

[0004] As an example, Patent Document 1, Patent Document 2, and Patent Document 3 each disclose a gear including an elastic structure having a spiral spring end ball and a plurality of elastic arms built in only at one end thereof. This type of structure characterized by an opening or a discontinuous contour has proven to be particularly fragile and brittle. Furthermore, the expected clamping force is also low.

[0005] Alternatively, this type of elastic structure may have, for example, a closed or continuous contour. For example, Patent Documents 4 and 5 disclose a hilt ball having three and four elastic arms, respectively, projecting inward from a first main opening intended to receive the shaft and contact it during the driving operation. Each of these hilt balls, having three or four projections, includes a second opening that opens toward the first main opening. The second opening is adapted to maximize the effective length of the elastic arms, specifying that the elastic arms are housed as far away as possible from the center of the first main opening. During the driving operation of the shaft, the support point on the shaft is moved radially relative to the geometric axis of the shaft due to the bending effect of each elastic arm. The clamping force is generated primarily by the stiffness of each arm, defined here by the height and thickness of the hilt ball. Therefore, this type of shape is limited.

[0006] Patent document 6 discloses an elastic structure including a second opening in the shape of a slot that opens toward a first opening intended to receive a shaft. The extent of these slots, together with a third opening in the shape of a circular ring portion, defines the extent of an elastic arm designed to contact the shaft. In other words, the region in which the elastic arm is incorporated is defined by the second opening, not exclusively by the third opening.

[0007] The problem of non-circularity, which tends to occur with this type of elastic structure, is disclosed in Patent Document 7. To solve this problem, this patent document proposes the adoption of an elastic structure similar to that disclosed in Patent Document 6. The elastic structure described in the escape wheel also includes a second opening in the shape of a slot that opens toward a first opening intended to receive a shaft. The extent of these slots, together with a third opening in the shape of a circular ring portion, defines the extent of an elastic arm designed to contact the shaft. To minimize deformation of the outer edge of the gear, the elastic structure further includes a fourth opening in the shape of an elliptical slot having several different extents, positioned at the contact point between the second and third openings and the teeth of the escape wheel. Here, the fourth opening is designed to absorb the deformation caused by the deformation of the elastic arm by being deformed. The aesthetics of the escape wheel are defined here by the shape of the elastic structure that occupies the main part of the escape wheel plate. This type of elastic structure is difficult to replace with a given watch part aesthetic. Also, it is difficult to replace with a watch part regardless of its dimensions. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] Swiss Patent Application Publication No. 700024 [Patent Document 2] International Publication No. 2012 / 079976 [Patent Document 3] European Patent Application Publication No. 1826634 [Patent Document 4] International Publication No. 2016 / 192957 [Patent Document 5] European Patent Application Publication No. 3056948 [Patent Document 6] Japanese Patent Publication No. 2012-185128 [Patent Document 7] European Patent Application Publication No. 2219083 [Overview of the project] [Problems that the invention aims to solve]

[0009] The object of the present invention is to improve upon the aforementioned drawbacks and provide a watch component that can improve upon known watch components from the prior art. In particular, the present invention proposes a watch component that is highly strong while avoiding deformation of the outer circumference of the component when it is hammered into place. [Means for solving the problem]

[0010] The watch component according to the present invention is defined in claim 1.

[0011] Various embodiments of the component are defined in claims 2 to 12.

[0012] The assembly according to the present invention is defined in claim 13.

[0013] The movement according to the present invention is defined in claim 14.

[0014] The clock according to the present invention is defined in claim 15.

[0015] The attached drawings illustrate several embodiments of watch components according to the present invention. [Brief explanation of the drawing]

[0016] [Figure 1] Figure 1 is a diagram of a first embodiment of a clock, including a first clock component embodiment. [Figure 2] Figure 2 is a detailed view of the first clock component embodiment. [Figure 3] Figure 3 is a detailed view of the first clock component embodiment. [Figure 4a] Figure 4a is a detailed view of the first embodiment of a watch component, showing different assembly stages. [Figure 4b] Figure 4b is a detailed view of the first embodiment of a watch component, showing different assembly stages. [Figure 4c] Figure 4c is a detailed view of the first embodiment of a watch component, showing different assembly stages. [Figure 5] Figure 5 is a diagram of a second embodiment of a clock, including a second clock component embodiment.

Figure 6

Embodiments for Carrying out the Invention

[0017] A first embodiment of a watch 400 according to the present invention will be described below with reference to FIGS. 1 to 4c. The watch is a small watch such as, for example, a wristwatch.

[0018] The watch includes a watch movement 300. The watch movement may be mechanical, particularly automatic. Alternatively, the movement may be electronic.

[0019] The movement includes an assembly 200 including a watch member 20 and a first watch component embodiment 100, and the watch member 20 is mounted on, particularly driven into, the watch component 100.

[0020] The watch component includes a first opening 1 intended to receive the member 20 when the member 20 is driven into the opening.

[0021] Part of the member, particularly the part of the member intended to be driven into the watch component, may be made of a brittle material, particularly ceramic or ruby. The member portion may be a shaft, particularly a cylindrical or substantially cylindrical shaft.

[0022] In the first embodiment, the component 100 is a gang wheel. The component 100 may be other types of gears, or the component 100 may be of other types. In the first embodiment, the gang wheel 100 may advantageously have an outer diameter D6 of the hub 6 that is smaller than D9 / 2, or smaller than D9 / 3, or smaller than D9 / 4, where D9 is the head diameter of the teeth 9 disposed on the outer edge 8 of the gear 100.

[0023] The watch component and the member are shown in the figure in cross section, particularly in a plane perpendicular to the direction or axis A1 in which the member is driven into or along the component.

[0024] The clock component 100 includes a first opening 1, which is intended to receive the member 20 when the member 20 is driven into the first opening. The axis A1 is centered on the first opening. The clock component 100 includes at least two structures 10, which are intended to receive the member.

[0025] Each receiving structure is, - A receiving element 4b, which is intended to contact the member and extends at least substantially in a positive arc with respect to axis A1, - From the first end of the receiving element, a first connecting element 4c extends at least substantially radially with respect to axis A1, - A second connecting element 4d extends at least substantially radially with respect to axis A1 from the second end of the receiving element, - A first elastically deformable element 4a extending at least substantially in a positive arc with respect to axis A1, - A second elastically deformable element 4a' extending at least substantially in a positive arc with respect to axis A1, It is equipped with.

[0026] The first connecting element mechanically connects the first end of the receiving element to the first elastically deformable element, and the second connecting element mechanically connects the second end of the receiving element to the second elastically deformable element.

[0027] The support element 4b includes a bearing area between its two ends 1a, 1b, particularly extending from the first end 1a to the second end 1b. This bearing area is intended to contact the member 20, particularly the shaft of the member. These ends are defined at the intersection of the first opening 1 and the second openings 2, 2''. The bearing area may include a single continuous surface. Alternatively, the bearing area may include multiple surfaces, particularly multiple elongated surfaces, particularly surfaces extending parallel to the axis A1. For this reason, the support element includes at least one surface or one contact point intended to contact the member. Preferably, the support element 4b includes, for example, a first linear or linear bearing area extending parallel to the axis A1 at the height of the first end 1a of the support element 4b, and a second linear or linear bearing area extending parallel to the axis A1 at the second end 1b of the support element 4b. For this reason, the first and / or second bearing areas have a linear or substantially linear shape.

[0028] When stationary, i.e., when no member is introduced into the opening, the first opening 1 has a substantially cylindrical shape with a diameter D1. This diameter D1 is the diameter of the largest diameter cylinder that can be inscribed in the opening. Axis A1 is defined as the axis of rotation of the largest diameter cylinder. In this sense, the first opening 1 is centered on axis A1.

[0029] When the member 20 is driven in, the geometric axis A2 of the member, in particular the axis of symmetry or rotation of the shaft of the member 20, is designed to align or substantially align with the geometric axis A1 of the structure 10.

[0030] The clock component may include three structures 10 intended to receive a member. The receiving structures advantageously constitute a three-fold rotationally symmetric assembly. For this reason, only one receiving structure will be described in detail here. The other receiving structures are inferred from the receiving structure described in terms of rotation around axis A1. Elements of other structures having similar or identical functions to elements of the receiving structure described are identified by the same reference number followed by "'" or "".

[0031] The component is advantageously adapted such that, when member 20 is guided into the first opening, the elastically deformable element is biased primarily by bending, and / or the connecting element is biased primarily by compression, and / or the receiving element is biased primarily by bending.

[0032] The component advantageously includes a second opening 2, 2', 2'' that extends substantially radially with respect to the axis A1 and opens relative to the first opening. Each second opening also radially restricts two receiving elements of two adjacent receiving structures, and / or each second opening separates the first connecting element from the second connecting element of two adjacent receiving structures. The second opening 2 is, for example, a slot extending radially from the first opening 1 with respect to the axis A1. The depth of the slot (measured radially with respect to the axis A1) is, for example, greater than twice the width of the slot (measured radially with respect to the axis A1).

[0033] The second openings 2, 2', 2'' are preferably U-shaped, i.e., having a rounded bottom; V-shaped, i.e., having a linear or substantially linear bottom; or breast wall-shaped, i.e., having a flat bottom. The second openings 2, 2', 2'' are preferably inscribed within a cylinder of minimum diameter D2, where diameter D2 is between 1.1 and 3 times diameter D1.

[0034] The width d of the opening (measured in a positive arc with respect to axis A1) is preferably given by the equation 2 × d = α × D1, where α is between 0.17 and 0.7.

[0035] Along with the first and second openings, the third openings 3, 3', and 3'' (which do not open to either the first or second opening) allow for the definition of the shape of the receiving structure.

[0036] The third opening mainly includes a first opening 3a extending in a positive or substantially positive arc with respect to the axis A1 at a height of a first diameter D3a, a second opening 3b extending in a positive or substantially positive arc with respect to the axis A1 at a height of a second diameter D3b, and a third opening 3c extending radially or substantially radially with respect to the axis A1 from the first part to the second part, particularly from one end of the first part to one end of the second part.

[0037] The second diameter D3b is smaller than the first diameter D3a. For example, diameters D3b and D3a may be related or substantially related by the following equation. 2 × D3b = D1 + D3a

[0038] For example, the first part 3a may extend over an angle of 1.5 × π / N around axis A1, where N is the number of support structures.

[0039] For example, the second part 3b may extend over an angle of 0.8 × π / N around axis A1, where N is the number of support structures.

[0040] Alternatively, the first and second parts 3a and 3b may extend over the same or substantially the same angle around axis A1.

[0041] The first elastically deformable element and / or the second elastically deformable element advantageously have a beam structure built into only one end thereof, at the height of the hub or at the height of the second arm 5 connected to the hub.

[0042] The component preferably includes a third opening 3 comprising a first portion 3a extending at least substantially in a positive arc with respect to the axis A1, a second portion 3b extending at least substantially in a positive arc with respect to the axis A1, and a third portion 3c extending at least substantially radially with respect to the axis A1.

[0043] The first part 3a preferably defines an elastically deformable element 4a radially with respect to axis A1, and / or the second part 3b preferably defines a receiving element 4b'' radially with respect to axis A1, and / or the third part 3c preferably defines a connecting element 4d'' radially with respect to axis A1.

[0044] These types of opening shapes are, - First part 4a of arm 4, - Second part 4c of arm 4, - Third part 4b of arm 4, and - Arm 4, fourth part 4d This makes it possible to define arm 4, which includes [the specified element].

[0045] The first part 4a is incorporated into the second arm 5, which extends radially or substantially radially with respect to the axis A1 from the hub 6, particularly from the inner surface 61 of the hub. Here, incorporated means defined by two openings 3, 3', particularly parts 3a, 3b', and 3c'. More specifically, the cross-section of the arm 4 at the height of the first part 4a is defined by diameters D3a, D3b, and width L of parts 3a, 3b' (measured radially with respect to the axis A1). The first part 4a constitutes, for example, the second elastically deformable element described above.

[0046] The second portion 4c extends radially or substantially radially with respect to axis A1 from the end of the first portion 4a. The second portion 4c is defined, for example, by portion 3b' and opening 2 of the third opening 3'. The second portion 4c constitutes, for example, the second connecting element 4c described above. The portion 4c is curved.

[0047] The third portion 4b extends from the end of the second portion 4c in a positive or substantially positive radial manner with respect to axis A1. The third portion 4b is defined, for example, by portion 3b' of the third opening 3' and opening 1. The third portion 4b constitutes, for example, the receiving element 4b described above. The cross-section of the arm 4 at the height of the third portion 4b is defined by the diameters D3b and D1 of portion 3b and the width L (measured radially).

[0048] The fourth portion 4d extends radially or substantially radially with respect to axis A1 from one end of the third portion 4b. The fourth portion 4d is defined, for example, by the portion 3c' and opening 2' of the third opening. The fourth portion 4d constitutes, for example, the first connecting element 4d described above.

[0049] The fourth portion 4d is advantageously joined to the first portion 4a' of the adjacent arm 4'. The first portion 4a' of the adjacent arm 4' advantageously constitutes the first elastically deformable element 4a' described above. Thus, in a preferred embodiment, the same elastically deformable element 4a constitutes the first and second elastically deformable elements of two adjacent receiving configurations.

[0050] When assembling member 20, the receiving elements 4b, 4b', and 4b'' are adapted to move relative to the axis A1. For this reason, the shaft of member 20 includes a portion 20a whose shape, in particular its diameter D20a, is larger than the shape of the first opening 1, in particular its diameter D1. Thus, the insertion of portion 20a into the opening 1 causes movement of the bearing area relative to the axis A1. More specifically, the bending of the elastic arms 4, 4', 4'' combined with the enlargement of the second openings 2, 2', 2'' advantageously causes movement of the receiving elements in the radial and positive radial directions relative to the axis A1 without deformation of the remaining clock components 100, in particular without deformation of the hub 6.

[0051] The clamping force on the shaft 20 is advantageously defined primarily by the shape of the second openings 2, 2', while the stress applied to the hub 6 is minimized by the structure of the first arm 4, i.e., by the shape of the two third openings 3, 3'.

[0052] In the first embodiment shown in Figures 1 to 4, all support structures 10 have threefold symmetry with respect to axis A1. Therefore, all support structures 10 have three second openings 2, 2', 2'' and three first arms 4, 4', 4'' evenly arranged around the geometric axis A1.

[0053] This type of arrangement makes it possible to maximize the number of elastic arms while minimizing their rigidity for a given opening shape, and therefore minimize the stress within the material constituting the arms. This type of arrangement makes it possible to minimize the stress within the receiving structure 10 for a given clamping force of member 20 on the shaft.

[0054] Figures 4a, 4b, and 4c show the stress distribution within the support structure 10 during the step of assembling member 20 to the watch component 100. Figure 4a shows the watch component in a stationary state, i.e., not biased by contact with the watch component. Here, the structure 10 is completely black, which indicates that the stress level of the material constituting the structure 10 is zero.

[0055] Figure 4b shows the intermediate assembly stage, in which, as the shaft 20 is guided into the opening 1, it expands from diameter D20 to diameter D20a, causing a portion of the watch component 20 to contact the receiving elements 4b, 4b'', and 4b'' to move them radially and positively radially with respect to axis A1. The white cross-hatching represents the stress levels caused by the expansion of the three second openings 2, 2', and 2'' and the bending of the three first arms 4, 4', and 4''. Note that the stress levels within the hub 6 are not affected by the elastic deformation of the openings 2, 2', and 2'' and the arms 4, 4', and 4''.

[0056] Figure 4c shows the clock component 100 when member 20 is fully inserted. It can be seen that the hub 6 is not affected at all or only slightly, despite the propagation of stress within arm 4. As a result, the hub is not deformed. The periphery or outer edge of the gear is even less deformed.

[0057] Therefore, the structure 10 allows the member 20 to be assembled within the part 100 without unnecessary deformation of the hub, arm, or outer edge of the part.

[0058] A second embodiment of the clock 400 according to the present invention will be described below with reference to Figure 5. The clock is a small clock, such as a wristwatch.

[0059] The clock includes a clock movement 300. The clock movement may be mechanical, especially automatic. Alternatively, the movement may be electronic.

[0060] The movement includes an assembly 200 which includes a clock component 20 and a second clock component embodiment 100, the clock component 20 being mounted on the clock component 100 and in particular being pressed into place.

[0061] The second embodiment of the clock or clock component differs from the first embodiment of the clock or clock component in that, for example, the clock component has only two receiving structures.

[0062] The assembly formed by the two support structures preferably has two rotational symmetries.

[0063] Furthermore, in this second embodiment, the clock component does not need to have the second arm 5. In this case, the first arm 4 may be mechanically connected directly to the hub 6.

[0064] A third embodiment of the clock 400 according to the present invention will be described below with reference to Figure 6. The clock is a small clock, such as a wristwatch.

[0065] The clock includes a clock movement 300. The clock movement may be mechanical, especially automatic. Alternatively, the movement may be electronic.

[0066] The movement includes an assembly 200 which includes a clock component 20 and a third clock component embodiment 100, the clock component 20 being mounted on and in particular pressed into the clock component 100.

[0067] The third embodiment of the clock or clock component differs from the first embodiment of the clock or clock component of the first embodiment only in that the clock component preferably has four receiving structures.

[0068] The assembly formed by the four support structures preferably has four rotational symmetries.

[0069] Furthermore, the third embodiment of the clock or clock component differs from the clock or clock component of the first and second embodiments in that the third opening is double.

[0070] In this third embodiment, receiving structure elements that have a similar or identical function to the receiving structure elements of the first or second embodiment are identified by the same reference number, with "1" added to the beginning.

[0071] Each receiving structure 110 includes a first elastic arm 14, which includes a first portion 14a incorporated into a second arm 15 extending substantially radially with respect to the axis 1A1 of the first opening 11 from the hub 16. Here, incorporated is defined by two third openings 13a, 13b', each extending at least partially in a positive arc with respect to the axis 1A1. More specifically, incorporated is defined here by the respective portions 113a, 113b' of the openings 13a, 13b', each extending in a positive arc with respect to the axis 1A1. The cross-section of the arm 14 at the height of the first portion 14a is defined by the diameters D13a, D13b and the width L of portions 113a, 113b' (measured radially with respect to the axis 1A1). Furthermore, portions 113b' and 213b' of the third opening 13b', together with the first and second openings 11 and 12', enable the definition of portions 14b, 14c, and 14d of the arm 14. For this reason, the arm 14 has a curved arm shape.

[0072] In the third embodiment shown in Figure 6, all receiving structures 110 have four rotational symmetries with respect to axis 1A1, and the four first arms 14, 14', 14”, 14* are evenly arranged around the geometric axis 1A1. Parts 14a, 14a', 14a”, 14a* are embedded into the respective second arms 15, 15', 15”, 15*. In this embodiment, each part 14b, 14b', 14b”, 14b* of arms 14, 14', 14”, 14* is incorporated into each part 14a, 14a', 14a”, 14a* of arms 14, 14', 14”, 14* via parts 14c, 14c', 14c”, 14c*. In other words, the arms are arranged alternately.

[0073] Regardless of the embodiment or modification, the component may include two, three, or four structures intended to receive a member, and / or the receiving structures may constitute an assembly having N rotational symmetries, where N=2, N=3, or N=4.

[0074] Regardless of the embodiment or modification, the watch component is preferably adapted such that, when the member is guided into the first opening, the elastically deformable element is biased primarily by bending and / or the connecting element is biased primarily by compression and / or the receiving element is biased primarily by bending.

[0075] Regardless of the embodiment or modification, the clock component preferably includes a second opening that extends at least substantially radially with respect to the axis and opens to a first opening, each second opening restricting two receiving elements of two adjacent receiving structures in a positive radial manner, and / or each second opening separating a first connecting element from a second connecting element of two adjacent receiving structures.

[0076] Regardless of the embodiment or modification, the watch component preferably includes one elastically deformable element that constitutes a first deformable element and a second elastically deformable element of two adjacent receiving structures.

[0077] Regardless of the embodiment or modified embodiment, the first elastically deformable element and / or the second elastically deformable element preferably include a beam structure embedded in only one of its ends.

[0078] Regardless of the embodiment or modification, the watch component preferably includes a third opening comprising a first portion substantially extending substantially radially with respect to at least the axis, a second portion substantially extending substantially radially with respect to at least the axis, and a third portion substantially extending radially with respect to at least the axis.

[0079] Regardless of the embodiment or modified embodiment, the first part preferably defines the elastically deformable element radially with respect to the axis, and / or the second part preferably defines the receiving element radially with respect to the axis, and / or the third part preferably defines the connecting element radially with respect to the axis.

[0080] Regardless of the embodiment or modified embodiment, a first circular cylinder having a first diameter is inscribed in a first opening, and a second opening is inscribed in a second circular cylinder having a second diameter, the second diameter having a value between 1.1 and 2.5 times the first diameter.

[0081] Regardless of the embodiment or modification, the receiving element preferably includes at least one surface or one contact point intended to contact the member.

[0082] Regardless of the embodiment or modified embodiment, the first opening is inscribed in a first circular cylinder having a first diameter, and the second opening is inscribed in a second circular cylinder having a second diameter, the second diameter varying between 1.1 and 2.5 times the first diameter.

[0083] Regardless of the embodiment or modified embodiment, the watch components may be manufactured by electroforming, LIGA molding, or photolithography and corrosion.

[0084] Regardless of the embodiment or modified embodiment, the watch components may be made of a brittle material or of Ni, NiP, Si, diamond, or quartz.

[0085] Regardless of the embodiment or modified embodiment, the watch component may include a hub 6 having an outer diameter less than 2 mm, less than 1.5 mm, or less than 1.2 mm, and the receiving structure is mechanically connected to the hub, to the inside of the hub, i.e., to the surface facing inward from the hub.

[0086] Cross-sections of the structure are illustrated for various embodiments. These cross-sections are preferably identical in all different cross-sectional planes perpendicular to axes A1, 1A1, and may be oriented in a similar manner. In any case, the cross-sections may also unfold along axes A1, 1A1. In particular, the cross-sections may rotate along axes A1, 1A1, thereby forming a helical shape.

[0087] Therefore, the aforementioned watch component solutions have an elastic structure designed to support components such as shafts. These structures are particularly characterized by their small size. For example, the elastic structure can be positioned at the center of a watch component, especially a gear, and can be supported by a small-diameter hub.

[0088] Furthermore, this type of structure advantageously prevents deformation of the external shape of the watch component, such as the outer edge, or deformation of the arm connecting the hub to the outer edge, during the installation of the component. Moreover, due to its small size, this structure does not affect the aesthetics or shape of the main part of the component, particularly the gear plate. In particular, this structure does not affect the aesthetics or shape of the arm connecting the hub to the outer edge of the gear. For this reason, this type of structure is advantageously implemented in components of a given design, particularly in gears.

[0089] The aforementioned components are particularly suitable for materials with little or no plastic deformation.

[0090] The aforementioned components are adapted, in particular, to substantially minimize or eliminate any remaining deformation of the watch components when the components are pressed into place. In practice, these components enable a robust, reliable, and permanent assembly of gears onto the escape wheel shaft, for example, independent of any deformation of the arms or outer diameter, especially the teeth, of gears that are at risk of becoming non-circular.

[0091] Furthermore, the receiving structure for this type of component is particularly small, and therefore has the advantage of being easily integrated with the aesthetics of a given watch component.

[0092] The watch components described are particularly suitable for mounting or pressing in axially, with little to no deformation of the outer circumference caused by mounting onto the shaft.

[0093] In this specification, “element extending in a first direction” preferably means that the element has a first dimension in the first direction that is at least greater than, or at least twice as much as, a second dimension in a second direction perpendicular to the first direction, where the first and second directions are perpendicular to axes A1, 1A1.

[0094] Alternatively or additionally, in this specification, “element extending in a first direction” means that the element mechanically connects two spaced elements that extend or substantially extend in a second direction perpendicular to the first direction. [Explanation of Symbols]

[0095] 1. First opening 2. Second opening 3. Third opening 3a Part 1 3b 2nd part 3c 3rd part 4a First elastically deformable element 4a' Second elastically deformable element 4b Receiving element 4c First connection element 4d Second connection element 6 hubs 10 Structure 20 components 100 watch parts 200 assembly 300 watch movements 400 Clocks

Claims

1. A timepiece part (100) comprising a first opening (1) intended to receive a component (20) when said component is driven into said first opening, said timepiece part comprising an axis (A1; 1A1) centred in said first opening and at least two structures (10; 110) intended to receive said component, said at least two structures being: a receiving element (4b; 14b) intended to come into contact with said member and extending radially at least substantially perpendicular to said axis (A1; 1A1); a first connecting element (4c; 14c) extending from a first end of said receiving element at least substantially radially with respect to said axis (A1; 1A1); a second connecting element (4d; 14d) extending from a second end of the receiving element at least substantially radially with respect to the axis (A1; 1A1); a first elastically deformable element (4a; 14a) extending radially at least substantially perpendicular to said axis (A1; 1A1); a second elastically deformable element (4a'; 14a') extending radially at least substantially perpendicular to said axis (A1; 1A1); Including, the first connecting element mechanically connects the first end of the receiving element to the first elastically deformable element, and the second connecting element mechanically connects the second end of the receiving element to the second elastically deformable element; one and the same elastically deformable element (4a; 14a) constitutes the first and the second elastically deformable elements of two adjacent receiving structures, Watch parts.

2. The first elastically deformable element and / or the second elastically deformable element have a beam structure incorporated at only one end thereof.

2. The watch component according to claim 1.

3. A watch part (100) including a first opening (1) intended to receive a member (20) when the member is driven into the first opening, the watch part including an axis (A1; 1A1) centered on the first opening and at least two structures (10; 110) intended to receive the member, the at least two structures being: a receiving element (4b; 14b) intended to come into contact with said member and extending radially at least substantially perpendicular to said axis (A1; 1A1); a first connecting element (4c; 14c) extending from a first end of said receiving element at least substantially radially with respect to said axis (A1; 1A1); a second connecting element (4d; 14d) extending from a second end of the receiving element at least substantially radially with respect to the axis (A1; 1A1); a first elastically deformable element (4a; 14a) extending radially at least substantially perpendicular to said axis (A1; 1A1); a second elastically deformable element (4a'; 14a') extending radially at least substantially perpendicular to said axis (A1; 1A1); Including, the first connecting element mechanically connects the first end of the receiving element to the first elastically deformable element, and the second connecting element mechanically connects the second end of the receiving element to the second elastically deformable element; The first elastically deformable element and / or the second elastically deformable element has a beam structure incorporated at only one end thereof, Watch parts.

4. The invention comprises two or three or four structures (10; 110) intended to receive the member, and / or the receiving structures form an assembly having N-fold rotational symmetry, where N=2 or N=3 or N=4, A watch component according to any one of claims 1 to 3.

5. When the member (20) is guided into the first opening, the first elastically deformable element and the second elastically deformable element are biased primarily in bending, and / or the first connecting element and the second connecting element are biased primarily in compression, and / or the receiving element is biased primarily in bending. A watch component according to any one of claims 1 to 4.

6. including second openings (2, 2', 2"; 12, 12', 12", 12*) extending at least substantially radially with respect to said axis (A1, 1A1) and opening into said first opening, each second opening defining two receiving elements of two adjacent receiving structures at right angles to each other and / or each second opening separating a first connecting element from a second connecting element of two adjacent receiving structures; A watch component according to any one of claims 1 to 5.

7. a third opening (3; 13a, 13b) each including a first portion (3a; 113a) extending radially at least substantially perpendicular to said axis (A1; 1A1), a second portion (3b; 113b) extending radially at least substantially perpendicular to said axis (A1; 1A1), and a third portion (3c; 213a, 213b) extending at least substantially radially to said axis (A1; 1A1); A watch component according to any one of claims 1 to 6.

8. said first portion (3a; 13a) defining said first elastically deformable element (4a, 14a) radially relative to said axis (A1; 1A1), and / or said second portion (3b; 13b) defining said receiving element radially relative to said axis (A1; 1A1), and / or said third portion (3c; 13c) defining said second connecting element radially relative to said axis (A1; 1A1), A watch component according to claim 7.

9. a first cylinder having a first diameter (D1) is inscribed in the first opening, and the second opening is inscribed in a second cylinder having a second diameter (D2), the value of the second diameter being between 1.1 and 3 times the value of the first diameter; A timepiece component according to claim 6 or any one of claims 7 to 8 which depend on claim 6.

10. said receiving element comprises at least one surface or one linear bearing area intended to come into contact with said member, A watch component according to any one of claims 1 to 9.

11. Manufactured by electroforming or LIGA type processing or photolithography and strong corrosion processing, and / made of brittle material or Ni or NiP or Si or diamond or quartz; A watch component according to any one of claims 1 to 10.

12. a hub (6; 16) whose outer diameter (D6) is smaller than 2 mm or smaller than 1.5 mm or smaller than 1.2 mm, said receiving structure being mechanically connected to said hub, to the interior of said hub, A watch component according to any one of claims 1 to 11.

13. Assembly (200) comprising a timepiece part (100) according to any one of claims 1 to 12 and a member (20), said member being mounted or driven into said first opening.

14. A timepiece movement (300) comprising a timepiece part according to any one of claims 1 to 12 or an assembly according to claim 13.

15. A timepiece (400) comprising a movement according to claim 14 or an assembly according to claim 13 or a timepiece part according to any one of claims 1 to 12.