Fastening device for fastening disc

Abstract

The invention relates in particular to a fastening method for fastening at least one display element of a watch by means of a fastening device. In fact, the at least one display element is fastened by means of the fastening method by means of the fastening device. This comprises providing the at least one display element, at least one movement and at least one split ring, then deforming the at least one split ring to fit the at least one display element, then fastening the at least one split ring and the at least one display element to the at least one movement.

Description

Technical Field

[0001] The technical field of the invention relates to fastening devices for fastening discs, and in particular date discs. Background Art

[0002] Some display elements are made of precious materials with inherent tolerances during the manufacturing process, and they are fastened to the movement, which is made of other materials through other processes and also has its own inherent tolerances.

[0003] Therefore, in order for the two parts to fit together, adjustments need to be made, which requires great precision and sometimes even requires the discarding of the unsuitable part. Summary of the invention

[0004] Therefore, the present invention proposes to fully or partially overcome the above-mentioned shortcomings by fastening at least one display element of a watch to at least one movement of the watch through an open ring, wherein the display element is configured to display at least one information item, and the open ring is configured to be deformable and adaptable to the at least one display element so as to fasten the at least one display element to the at least one movement.

[0005] Due to this arrangement, tolerances that may occur during the manufacture of the components, in particular the display element and the movement, are absorbed by the split ring.

[0006] According to one embodiment, the open ring comprises at least one rigid portion and at least one deformable portion; the at least one deformable portion is configured to be more easily deformed than the at least one rigid portion.

[0007] Due to this arrangement, the open ring can be adapted to the contour of the at least one display element.

[0008] According to one embodiment, the open ring comprises a shoulder or a groove; the shoulder or the groove forms a housing for receiving the at least one display element.

[0009] Due to this arrangement, the at least one display element may be accommodated and / or held by the open ring.

[0010] According to one embodiment, the open ring is a circular arc and / or a clip.

[0011] According to one embodiment, the circular arc and / or the clip has a discontinuity or an opening, and the discontinuity or the opening is configured to enable two ends of the at least one open ring to approach each other in a plane coplanar with the at least one open ring.

[0012] Due to one or other of the aforementioned arrangements, the split ring can be deformed in a plane.

[0013] The invention relates to a fastening device for at least one display element of a watch, comprising at least one display element, at least one movement and at least one open ring according to any one of the preceding claims.

[0014] Due to this arrangement, tolerances that may occur during the manufacture of the components, in particular the display element and the movement, are absorbed by the split ring.

[0015] The invention relates to a method for fastening at least one display element of a watch by means of a fastening device according to any one of the preceding claims, said method comprising at least one of the following steps:

[0016] - providing said at least one display element, said at least one movement and said at least one open ring;

[0017] - deforming the at least one open ring so as to adapt the at least one display element; and

[0018] - Fastening said at least one split ring to said at least one movement.

[0019] Due to this arrangement, any tolerances that may occur during the manufacture of the components, in particular the display element and the movement, are absorbed by the split ring.

[0020] According to one embodiment, during the step of deforming said at least one split ring, said at least one display element is housed in said housing of said shoulder or of said groove.

[0021] Due to this step, the at least one display element may be accommodated and / or held by the open ring.

[0022] According to one embodiment, in the deforming step, the at least one split ring is deformed at the at least one deforming portion.

[0023] Due to this arrangement, the open ring can be adapted to the contour of the at least one display element.

[0024] The above-described embodiments and their modifications may be employed individually or in any technically possible combination.

[0025] The invention will be better understood and its advantages will appear from the following description given purely by way of non-limiting example and with reference to the accompanying drawings, in which like reference numerals correspond to identical or similar elements in structure and / or function. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In the following, the invention will be described in more detail using the accompanying drawings given as non-limiting examples, in which:

[0027] -Figure 1 A cross-sectional view showing a fastening device 200 according to one embodiment; and

[0028] - Figure 2 A method for fastening a split ring 100 to form the fastening device 200 is shown. DETAILED DESCRIPTION

[0029] During the manufacturing process of some timepieces, certain tolerances may occur, especially in the case of display elements (such as month calendars or others) and in the case of movements.

[0030] For this purpose, at least one split ring 100 is provided, which makes it possible to assemble at least one display element 210 to at least one movement 220 by means of a fastening method 500 described below.

[0031] To this end, the at least one display element 210 , the at least one movement 220 and the at least one open ring 100 are necessary, which are all provided 510 in advance.

[0032] The date disc 210 , ie the display element 210 , is inserted into the at least one open ring 100 by deforming 520 the at least one open ring 100 to match the contour of the at least one display element 210 .

[0033] In practice, the open ring 100 comprises at least one rigid portion 110 and at least one deformable portion 120 , the at least one deformable portion 120 being more easily deformable than the at least one rigid portion 110 in order to adapt to the contour of the at least one display element 210 .

[0034] Furthermore, the at least one split ring 100 has a circular arc and / or clip shape. This circular arc and / or clip shape has a discontinuity 130 or an opening 130, which allows deformation in a plane by bringing the two ends of the at least one split ring 100 closer together, preferably in a plane coplanar with the at least one split ring 100, because the deformation 520 is located at the at least one deformed portion 120 of the at least one split ring 100. Therefore, by bringing the two ends on both sides of the opening closer together, the at least one deformed portion 120 is deformed, and the at least one split ring 100 is deformed in the same plane, thereby facilitating the insertion of the frame on the one hand and facilitating its installation in the watch case on the other hand.

[0035] This is very advantageous since the open ring 100 comprises a shoulder 101 or a groove 101 forming a housing 102 for accommodating the at least one display element 210 , so that this deformation in the plane allows the at least one display element 210 to be inserted or accommodated in the open ring 100 .

[0036] The at least one open ring 100 having the at least one display element 210 is then fastened 530 to the at least one movement 220 by means of screws 106 and, where appropriate, nuts 107, so as to form a fastening device 200 comprising the at least one display element 210, the at least one movement 220 and the at least one open ring 100, thereby eliminating tolerances that may occur in the method of manufacturing components (in particular the display element 210 and the movement 220).

[0037] It should be added that said at least one split ring 100 may be imprecise, and more precisely, the profile of said at least one split ring 100 including said shoulder 101 or said groove 101 may have a greater tolerance relative to the diameter of said at least one display element 210. This tolerance is due to said discontinuity 130 or said opening 130 of said at least one split ring 100, and to the tolerances of the plastic material constituting said at least one split ring 100, and naturally, it is by fastening said at least one split ring 100 to said at least one movement 220 that said fastening means 200 are formed and the assembly including said at least one split ring 100 and said at least one display element 210 becomes more precise.

Claims

1. An open ring (100) for fastening at least one display element (210) of a watch to at least one movement (220) of the watch, the display element (210) being configured to display at least one information item, the open ring (100) being configured to be deformable and to adapt to the at least one display element (210) so as to fasten the at least one display element (210) to the at least one movement (220), wherein: The display element (210) is in the form of an annular member, the open ring (100) includes a groove extending in the circumferential direction on the outer peripheral wall of the open ring (100), the groove forms a receiving portion (102) for receiving the display element (210) from the inner periphery of the display element (210), the open ring (100) has a discontinuity (130), and the discontinuity (130) is configured to enable the two ends of the at least one open ring (100) to be close to each other, and the open ring (100) includes at least one rigid portion and at least one deformable portion (120), and the at least one deformable portion (120) is configured to be more easily deformed than the at least one rigid portion.

2. The split ring (100) according to claim 1, wherein: The open ring (100) has a clip shape.

3. The split ring (100) according to claim 1, wherein: The discontinuity (130) is configured to enable two ends of the at least one open ring (100) to approach each other in a plane coplanar with the at least one open ring (100).

4. A fastening device (200) for at least one display element (210) of a watch, the fastening device (200) comprising at least one display element (210), at least one movement (220) and at least one open ring (100) according to any one of claims 1 to 3.

5. A method (500) for fastening at least one display element (210) of a watch by means of a fastening device (200) according to claim 4, the fastening method (500) comprising at least one of the following steps: - providing (510) the at least one display element (210), the at least one movement (220) and the at least one open ring (100); - deforming (520) the at least one open ring (100) so as to adapt the at least one display element (210); and - Fastening (530) said at least one split ring (100) to said at least one movement (220).

6. The fastening method (500) according to claim 5, wherein: During the step of deforming (520) the at least one open ring (100), the at least one display element (210) is received in the receiving portion (102).

7. The fastening method (500) according to claim 5 or 6, wherein: In the step of deforming (520), the at least one split ring (100) is deformed at the at least one deforming portion (120).

Images