CH714757A2 - Musical watch box. - Google Patents

Abstract

The invention relates to a musical watch whose box comprises a caseband (10) with surfaces (11; 14) receiving in abutment a cover assembly (1) with a bezel (2) and a casing ring (4), and bearing at least one stamp (6) with a resonant portion distinct from the walls of the middle part (10). The middle part (10) carries the cover assembly (1) by tabs (7), distinct and without contact between them, that comprises the bezel (2) or the middle part (10) and which are arranged to allow the vibration of the cover assembly (1). The middle part (10) has an annular wall (16) defining an inner chamber (17) around the casing ring (4). At a distance from the bearing surface (14) of the casing ring (4), a first silent-block seal (91) toric limits the transfer of vibrations between a musical or ringing movement in operation and the dressing of the ring. box and reduce the noise without interfering with the vibration of the stamps.

Description

CH 714 757 A2

Description

FIELD OF THE INVENTION The invention relates to a musical watch case comprising at least one cover assembly which comprises on the one hand a bezel and on the other hand at least one crystal or a bottom, a casing circle, a middle part which comprises a first surface for receiving in support of said cover assembly and a middle surface for receiving in support of said casing ring, said box comprising at least one stamp integral with said middle and comprising a resonant part distinct from the walls of said middle.

The invention also relates to a musical watch comprising a striking mechanism and / or an alarm mechanism and / or a music box mechanism, and such a box.

The invention relates to the field of musical watches, comprising a ringing mechanism, and / or alarm or alarm, and / or music box.

BACKGROUND OF THE INVENTION Good sound emission is always a difficult problem to solve for a musical watch, insofar as the radiating members must not impede the user of the watch, nor affect the water resistance. of the watch, and where it is necessary to dampen as little as possible to radiate the vibration of timbres, gongs, keyboards, bells or the like, in a clearly audible manner by the user, with a sound not altered by parasitic vibrations generated by other components of the watch, such as the mechanism for activating the ring or the musical game, and / or the mechanism for regulating the ring or the musical game, and / or the clockwork movement, or the like.

Document CH 712 216 A2 in the name of WATCHES BREGUET describes a timepiece with a ring or a music, with a resonant bezel. This musical timepiece includes a timbre fixed to a structure or to a resonator of a box, the resonator being rigidly assembled to the structure, around a chamber, by lugs allowing the vibration of the resonator in a frequency range. determined, the chamber containing a sealing element constituting with the tabs the only mechanical connection between the structure and the resonator component and comprising at least one seal in contact with the structure and the resonator, of hardness less than 20 Shore A, for a minimum damping of the resonator vibration. In the application to a watch, the watch case comprises a structure and a resonator which are rigidly assembled around a chamber enclosing a sealing element, the structure or the resonator comprises a groove receiving a seal, and the structure or the resonator or the sealing element has a rigid projecting relief compressing a seal in its groove.

Document EP 3 002 639 A1 in the name of WATCHES BREGUET describes a musical watch case with improved acoustic performance, with a bezel which directly carries a stamp or constitutes a stamp. This bezel comprises a torus receiving a watch crystal, and a fine tab perpendicular to the plane of the torus comprising means for fixing to a structure. The case comprising a middle part, and carries such a bezel in indirect support on a main surface of the middle part by means of a first O-ring seal, the middle part and the bezel are held together in a position where, at the 'free state of the telescope in the absence of overpressure, the telescope is distant from this main surface by a value corresponding to a predetermined clearance and not zero.

Summary of the invention [0007] The invention proposes to provide the best possible acoustic radiation for a resonant organ such as a timbre or the like, fixed in particular on the middle of the watch case.

To this end, the invention relates to a musical watch case according to claim 1.

The invention also relates to a musical watch comprising a striking mechanism and / or an alarm mechanism and / or a music box mechanism, and such a box.

Brief description of the drawings [0010] Other characteristics and advantages of the invention will appear on reading the detailed description which follows, with reference to the accompanying drawings, where:

fig. 1 to 10 show, schematically, and in section, different variants of the invention;

fig. 1 with an outer chamber partially closed off by an annular partition, in which outer chamber extend axially from the legs of the bezel, fixed to the lower part of the middle part, which carries, on its internal side, a casing circle by means of a radial silent-block seal;

CH 714 757 A2 fig. 2 with an inner chamber in which axially extend the lugs of the bezel, fixed to the middle part, which carries, on its internal side, a casing ring by means of a radial silent-block seal;

fig. 3 is a detail of a configuration where the middle carries a casing ring by means of an axial silent-block seal;

fig. 4 is a detail of a configuration where the middle carries a casing circle by means of a radial silent-block seal and an axial silent-block seal;

fig. 5 with lugs of the bezel extending axially outside an outer chamber, fixed to the lowest part of the middle part, which carries, on its internal side, a casing circle by means of '' a radial silent-block seal;

fig. 6 with an outer chamber partially closed off by an annular partition, in which outer chamber extend obliquely from the legs of the bezel, fixed to the lowest part of the middle part, which carries, on its internal side, a casing circle by means of a radial silent-block seal;

fig. 7 with lugs of the bezel extending radially outside the middle part, which carries, on its internal side, a casing ring by means of a radial silent-block seal;

fig. 8 is a detail of a configuration where a conventional middle carries a casing circle by means of an axial silent-block seal;

fig. 9 is a detail of another configuration where a conventional middle carries a casing circle by means of a radial silent-block seal and an axial silent-block seal constituted by a flat seal, of substantially rectangular section ;

fig. 10 is another variant with lugs of the bezel extending radially in lateral support and outside the middle part, which carries, on its internal side, a casing circle by means of a silent- block radial;

fig. 11 is a top view of the telescope of FIG. 10 comprising four straight and radial legs, each extending according to an angular sector of angle at the center less than 20 °;

fig. 12 is a top view of another telescope comprising six legs arranged in a spiral, each extending according to an angular sector of angle at the center less than 45 °;

fig. 13 is a block diagram representing a musical watch comprising a striking mechanism and an alarm mechanism, and comprising a box according to the invention;

fig. 14 shows, schematically and in exploded perspective, part of a box according to the invention, made of titanium alloy, comprising a middle part on which is fixed a stamp, and which comprises cells at the bottom of which are fixed the ends of three tabs that includes a bezel of a cover assembly, which also includes a glass;

fig. 15 is a plan view of the box of FIG. 14;

fig. 16 and 17 illustrate, similarly to FIGS. 14 and 15, an 18 carat gold alloy box, with four legs;

fig. 18 is a sectional view along a radial plane of a tab of the seat of FIG. 14.

Detailed description of the preferred embodiments The invention relates to a musical watch box 100 comprising at least one cover assembly 1. This cover assembly 1 comprises, on the one hand a bezel 2, and on the other hand at least one ice 3 or a bottom 5.

It is understood that the box 100 may include an upper cover assembly 1 with a bezel 2 and a crystal 3, as illustrated by all of the figures, or may include a lower cover assembly 1 with a bezel 2 and a bottom 5, or even both an upper cover 1 assembly with a bezel 2 and a lens 3, and a lower cover 1 assembly with a bezel 2 and a base 5.

By "musical watch" is meant a watch which comprises a striking mechanism and / or an alarm or alarm mechanism and / or a music box mechanism.

CH 714 757 A2 [0014] The box 100 also has a casing ring 4, arranged to carry a movement and / or a mechanism, and a middle part 10.

This middle part 10 has a first surface 11 for the reception in support of the cover assembly 1, and a central surface 14 for the reception in support of the casing ring 4.

This middle part 10, either constitutes a bottom of the box 100, or has a second surface 15 for the reception in support of a lower cover assembly comprising a bezel 2 and a bottom 5, or for the direct reception d 'a bottom 5. When the cover assembly 1 which is supported on the first surface 11 comprises a bezel 2 and a bottom 5, the second surface 15 can naturally be adapted to the reception of an ice cream 3, or a another cover assembly 1 comprising a bezel 2 and a crystal 3.

More particularly, the box 100 has a bottom 5 which is transparent.

The box 100 comprises at least one resonant member, in particular a stamp 6 secured to the middle part 10, that is to say attached and fixed to the middle part 10, or even in one piece with the middle part 10, and which comprises a resonant part which is distinct from the walls of the middle part 10. The resonant member can take other forms than a timbre, without modifying the essence of the invention. By “timbre” 6 is thus meant any usual resonant organ in watchmaking: timbre, gong, keyboard, bell, or the like.

The middle part 10 carries the cover assembly 1 by at least one lug 7, which includes the bezel 2 or the middle part 10, and which is arranged to allow the vibration and radiation of the cover assembly 1 at frequencies included between 4 kHz and 6 kHz.

Each tab 7 extends in an angular sector of angle at the center a less than 45 ° relative to the center of the box 100, and is distinct from any other said tab 7, and without contact with any other tab 7 .

In a variant, this lug 7 or these lugs 7 constitute the only direct contacts between the bezel 2 and the middle part 10.

In another variant, as visible in the figures, this tab 7 or these tabs 7 constitute, with at least one seal 102, the only direct contacts between the bezel 2 and the middle part 10.

More particularly, each tab 7 extends in an angular sector of angle at the center a less than 45 ° relative to the center of the box 100.

More particularly, this at least one tab 7 comprises, at a massive distal end 71, at least one bearing face 72 which is arranged to cooperate in abutment support on the middle 10 or respectively the bezel 2 , and fixing means 73 which are arranged for the rigid fixing of this tab 7 by at least one bearing face 72 supported or pinched on the middle part 10 or respectively the bezel 2.

More particularly still, at least one lug 7, and advantageously each lug 7, comprises, between the middle part 10 and the bezel 2, a thin median thin blade 74, which is more flexible than the massive distal end 71, and whose thickness is, more particularly, less than the smallest thickness of the middle part 10 and is less than the smallest thickness of the bezel 2.

According to a particular feature, at least one tab 7, or each said tab 7, comprises, between the middle part 10 and the bezel 2, a thin median thin blade 74, which is more flexible than the massive distal end 71 , and whose thickness is, more particularly, less than the smallest section of each stamp 6.

In a particular embodiment, the middle part 10 comprises at least one substantially annular peripheral wall 16, which defines an inner chamber 17 extending around the casing circle 4. More particularly, the box 100 has tabs 7 in this inner chamber 17. More particularly still, all the legs 7 of the box 100 are in the inner chamber 17.

In another variant, the middle part 10 comprises at least one substantially annular peripheral wall 16 defining an inner chamber 17 extending around the casing ring 4 arranged to support a clockwork movement and / or a clockwork mechanism, and in the box 100 has tabs 7 outside the middle part 10, towards the periphery of the box 100, on the side opposite to the inner chamber 17 relative to the middle part 10. More particularly still, all the tabs 7 of the box 100 are outside the middle part 10, towards the periphery of the box 100, on the side opposite to the inner chamber 17 with respect to the middle part 10.

According to a particular embodiment, the box has a plurality of such tabs 7 each comprising, between the middle part 10 and the bezel 2, a thin median blade 74 elastic substantially straight, and the directions of all the median thin blades 74 substantially straight elastics have the same inclination with respect to the same central reference axis.

According to a particular embodiment, all the thin median blades 74 which are substantially rectilinear elastic are disposed on the same surface of revolution around the same central reference axis.

In a particular variant, this surface of revolution is a cone.

In another particular variant, this surface of revolution is a cylinder.

CH 714 757 A2 In yet another variant, all the thin median blades 74 which are substantially rectilinear elastic are arranged in the same plane or parallel to the same plane.

According to a particular characteristic, the middle part 10 comprises, around a peripheral wall 16 substantially annular defining an inner chamber 17 extending around the casing circle 4, and around all the legs 7 that includes the box 100 , a resonator ring, which is attached to the middle part 10 or which forms a lip of the middle part

10. This resonator ring 8 is at any point distant from the telescope 2 and the tabs 7, and forms with the peripheral wall 16 an external radiating cavity 18. More particularly, the resonator ring 8 is of a thickness less than that of each tab 7, and is made of a gold and / or platinum and / or titanium alloy.

Advantageously and in particular, at least one of the metal constituents of the box 100, and more particularly all of the metallic constituents of the box 100, with the exception of glass and seals, is produced in a material making it possible to obtain a critical radiation frequency less than or equal to that obtained with a gold alloy or gold execution. More particularly, the middle part 10, the bezel 2, and the base 5 when the case 100 includes a metal base 5, are made of the same alloy. More particularly still, this alloy is a titanium alloy, well suited to the mechanical constraints and to the usual sealing constraints at least 5 bar, and whose radiant power is greater than that of gold, this choice making it possible to obtain a natural frequency in the sought range from 4 kHz to 6 kHz. In a particular variant, this alloy is “grade 5 titanium”, comprising 90% of titanium, 6% of aluminum, and 4% of vanadium; in another variant, this alloy is a precious alloy of titanium, and in particular of titanium and gold, according to one of the patent applications PCT / EP 2015/080 211 and PCT / EP 2015/080 270 in the name of Montres Breguet HER. More particularly, a titratable alloy is chosen.

In particular, the crystal 3 is made of sapphire, also to ensure good radiation. In the same way, when the bottom 5 of the box WO has a crystal, this is preferably made of sapphire.

According to the invention, the middle part 10 comprises at least one substantially annular peripheral wall 16 defining an inner chamber 17 extending around the casing circle 4, and the box 100 comprises, at a distance from the middle surface 14 d 'support of the casing circle 4 on the middle part 10, at least one first substantially O-ring silent-block seal 91, which is arranged to limit the transfer of vibrations between a musical or striking movement in operation and dressing of the box 100, and to reduce unwanted noise without hampering the vibration of each timbre 6.

According to another particular characteristic, the middle part 10 comprises at least one substantially annular peripheral wall 16 defining an inner chamber 17 extending around the casing circle 4, and the box 100 comprises, at the level of the median surface 14 support of the casing circle 4 on the middle part 10, and between the casing circle 4 and the middle part 10, at least one second substantially O-ring silent-block gasket 92, which is arranged to limit the transfer of vibrations between a musical movement or ringing in operation and the dressing of the box 100, and to reduce unwanted noise without hampering the vibration of each timbre 6.

Figs. 14 and 15 illustrate a particular embodiment of a box 100 according to the invention, comprising a middle part 10 on which is fixed a stamp 6, and which comprises cells 107 at the bottom of which are fixed the massive ends 71 of lugs 7 which a bezel 2 of a cover assembly 1, which further comprises a crystal 3. More particularly, this middle part 10 made of titanium alloy, such as "grade 5 titanium" or similar, as well as the bezel 2, which comprises three legs 7 substantially at 120 ° from each other, which each extend at an angle to the center a of 11.5 °. The radius RA is 35.455 mm and the radius RB is 38.55 mm. The mass of the cover assembly 1 (bezel and glass) is approximately 10 g.

In another variant, as visible in FIGS. 16 and 17, the middle part 10 is made of titratable gold alloy, and the bezel has four legs 7, substantially 90 ° from each other, which each extend at an angle a of 11.5 ° in the center. The mass of the cover assembly 1 (bezel and glass) is approximately 19 g.

[0041] FIG. 18 shows the leg section 7 used for these embodiments of FIGS. 14 to 17. The median thin blade 74 has a thickness E of 0.60 mm, and a height H of 2.18 mm.

According to a particular characteristic, the middle part 10 is produced in a single piece with at least one stamp 6.

According to a particular characteristic, the middle part 10 is made of a gold and / or platinum and / or titanium alloy.

In a particular variant, the box 100 comprises at least one stamp 6 fixed on a cover assembly 1 which it comprises, or in one piece with a bezel 2, or fixed on a tab 7, or in one piece with a tab 7.

Claims (25)

CH 714 757 A2 claims 1. Musical watch box (100) comprising at least one cover assembly (1) which comprises on the one hand a bezel (2) and on the other hand at least one crystal (3) or a bottom (5), a circle casing (4), a middle part (10) which comprises a first surface (11) for the reception in support of said cover assembly (1) and a central surface (14) for the reception in support of said casing circle (4 ), said box (100) comprising at least one stamp (6) integral with said middle part (10) and comprising a resonant part distinct from the walls of said middle part (10), where said middle part (10) carries said cover assembly (1) by at least one tab (7) which comprises said bezel (2) or said middle part (10) and which is arranged to allow the vibration and radiation of said cover assembly (1) at frequencies between 4 kHz and 6 kHz, each said tab (7) being distinct from any other said tab (7) and without contact with any other said tab (7), character in that said middle part (10) comprises at least one substantially annular peripheral wall (16) defining an interior chamber (17) extending around said casing circle (4), and in that said box (100) comprises , at a distance from said central surface (14) for supporting said casing ring (4) on said middle part (10), at least one first toroidal-joint (91) substantially toroidal arranged to limit the transfer of vibrations between a musical movement or ringing in operation and the dressing of said box (100) and to reduce unwanted noise without hampering the vibration of each said stamp (6). 2. Box (100) according to claim 1, characterized in that said tabs (7) constitute, with at least one seal (102), the only direct contacts between said bezel (2) and said middle (10) . 3. Box (100) according to claim 1, characterized in that said tabs (7) constitute the only direct contacts between said bezel (2) and said middle (10). 4. Box (100) according to one of claims 1 to 3, characterized in that each said tab (7) extends in an angular sector of angle at the center (a) less than 45 ° relative to the center of said box (100) 5. Box (100) according to one of claims 1 to 4, characterized in that said middle part (10) constitutes a bottom of said box (100), or comprises a second surface (15) for the reception in support of a bottom (5) when said cover assembly (1) has no bottom. 6. Box (100) according to one of claims 1 to 5, characterized in that said middle part (10) or said cover assembly (1) carries or comprises a transparent bottom (5). 7. Box (100) according to one of claims 1 to 6, characterized in that said at least one tab (7) comprises, at a massive distal end (71), at least one bearing face ( 72) arranged to cooperate in abutment support on said middle part (10) or respectively said bezel (2), and fixing means (73) arranged for rigid fixing of said at least one lug (7) by its said at least a bearing face (72) pressed or pinched on said middle part (10) or respectively said bezel (2). 8. Box (100) according to claim 7, characterized in that each said tab (7) comprises, between said middle part (10) and said bezel (2), a thin median blade (74) elastic, more flexible than said end massive distal (71), and whose thickness is less than the smallest thickness of said middle part (10) and is less than the smallest thickness of said bezel (2). 9. Box (100) according to claim 7 or 8, characterized in that each said tab (7) comprises, between said middle part (10) and said bezel (2), a thin median blade (74) elastic, more flexible than said massive distal end (71), and whose thickness is less than the smallest section of each said patch (6). 10. Box (100) according to one of claims 1 to 9, characterized in that said middle part (10) comprises at least one peripheral wall (16) substantially annular defining an interior chamber (17) extending around said circle d 'casing (4), and in that said box (100) has said tabs (7) in said interior chamber (17). 11. Box (100) according to claim 10, characterized in that all of said legs (7) of said box (100) are in said interior chamber (17). 12. Box (100) according to one of claims 1 to 10, characterized in that said middle part (10) comprises at least one peripheral wall (16) substantially annular defining an interior chamber (17) extending around said circle d 'casing (4) arranged to support a timepiece movement and / or a timepiece mechanism, and in that said box (100) comprises said lugs (7) outside said middle part (10), towards the periphery of said box (100), on the side opposite to said interior chamber (17) relative to said middle part (10). 13. Box (100) according to claim 12, characterized in that all of said legs (7) of said box (100) are outside of said middle part (10), towards the periphery of said box (100), on the side opposite to said interior chamber (17) relative to said middle part (10). 14. Box (100) according to one of claims 1 to 13, characterized in that said box comprises a plurality of said lugs (7) each comprising, between said middle part (10) and said bezel (2), a thin blade median (74) substantially rectilinear elastic, and in that the directions of all said thin median blades (74) substantially rectilinear elastic are of the same inclination with respect to the same central reference axis. CH 714 757 A2 15. Box (100) according to claim 14, characterized in that all of said median thin blades (74) substantially rectilinear elastic are arranged on the same surface of revolution around said same central reference axis. 16. Box (100) according to claim 15, characterized in that said surface of revolution is a cone. 17. Box (100) according to claim 15, characterized in that said surface of revolution is a cylinder. 18. Box (100) according to claim 14, characterized in that all of said thin median blades (74) substantially rectilinear elastic are arranged in the same plane or parallel to the same plane. 19. Box (100) according to one of claims 1 to 18, characterized in that said middle part (10) comprises, around a peripheral wall (16) substantially annular defining an interior chamber (17) extending around said casing ring (4), and around all of said legs (7) that comprises said box (100), a resonator ring (8) attached to said middle part (10) or forming a lip of said middle part (10), said resonator ring (8) being at any point distant from said telescope (2) and said tabs (7), and forming with said peripheral wall (16) an external radiating cavity (18). 20. Box (100) according to claim 19, characterized in that said resonator ring (8) is of a thickness less than that of each said tab (7), and is made of a gold and / or platinum alloy and / or titanium. 21. Box (100) according to one of claims 1 to 20, characterized in that said middle part (10) comprises at least one substantially annular peripheral wall (16) defining an interior chamber (17) extending around said circle d 'casing (4), and in that said box (100) comprises, at a distance from said median surface (14) of support of said casing ring (4) on said middle part (10), at least one first joint-block (91) substantially toroidal arranged to limit the transfer of vibrations between a musical or striking movement in operation and the covering of said box (100) and to reduce parasitic noise without hampering the vibration of each said timbre (6). 22. Box (100) according to one of claims 1 to 21, characterized in that said middle part (10) comprises at least one substantially annular peripheral wall (16) defining an interior chamber (17) extending around said circle d 'casing (4), and in that said box (100) comprises, at said median surface (14) of support of said casing circle (4) on said middle part (10), and between said circle casing (4) and said middle part (10), at least one second silent-block seal (92) substantially toroidal arranged to limit the transfer of vibrations between a musical or striking movement in operation and the covering of said box (100) and to reduce parasitic noise without hampering the vibration of each said timbre (6). 23. Box (100) according to one of claims 1 to 22, characterized in that said box (100) comprises at least one stamp (6) fixed on said cover assembly (1) or on a said tab (7). 24. Box (100) according to one of claims 1 to 23, characterized in that said middle part (10) is produced in a single piece with at least one said stamp (6). 25. Box (100) according to one of claims 1 to 24, characterized in that at least one said stamp (6) is attached and fixed to said middle part (10).