CH704677B1 - Tourbillon watch movement for with means of protection against shock. - Google Patents
Tourbillon watch movement for with means of protection against shock. Download PDFInfo
- Publication number
- CH704677B1 CH704677B1 CH00493/11A CH4932011A CH704677B1 CH 704677 B1 CH704677 B1 CH 704677B1 CH 00493/11 A CH00493/11 A CH 00493/11A CH 4932011 A CH4932011 A CH 4932011A CH 704677 B1 CH704677 B1 CH 704677B1
- Authority
- CH
- Switzerland
- Prior art keywords
- tourbillon
- spiral
- hairspring
- watch movement
- vortex
- Prior art date
Links
- 230000035939 shock Effects 0.000 title description 5
- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- 230000005484 gravity Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/20—Compensation of mechanisms for stabilising frequency
- G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
- G04B17/285—Tourbillons or carrousels
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
- G04B17/325—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring in a fixed position, e.g. using a block
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Vibration Dampers (AREA)
Abstract
L’invention porte sur un tourbillon (1) pour mouvement horloger comportant une cage rotative portant un balancier (2), au moins un spiral (3, 4) et un échappement Le tourbillon (1) comprend en outre un porte-piton (5) comportant au moins deux pitons (6, 7) sur l’un desquels est fixé l’extrémité extérieure du spiral (2, 3). L’autre piton (6, 7) est agencé de manière à limiter le déplacement latéral du spiral (2, 3) en cas de choc.The invention relates to a vortex (1) for a watch movement comprising a rotary cage carrying a rocker (2), at least one spiral (3, 4) and an escapement. The vortex (1) further comprises a bolt carrier (5). ) having at least two studs (6, 7) on one of which is fixed the outer end of the spiral (2, 3). The other peg (6, 7) is arranged to limit the lateral displacement of the hairspring (2, 3) in case of impact.
Description
[0001] La présente invention concerne un tourbillon pour mouvement horloger muni de moyens de protection contre les chocs. La présente invention concerne en outre une montre équipée d’un mouvement horloger comportant le tourbillon selon l’invention. The present invention relates to a vortex for watch movement provided with means of protection against shocks. The present invention further relates to a watch equipped with a watch movement comprising the tourbillon according to the invention.
[0002] Les tourbillons pour mouvements horloger sont des dispositifs mécaniques destinés à améliorer la précision des montres mécaniques en contrebalançant les perturbations de l’isochronisme du balancier dues à la gravité terrestre. Pour ce faire, l’organe réglant comprenant le balancier-spiral et l’échappement sont montés dans une cage qui est mise en rotation généralement à raison d’un tour complet en une minute. Whirlwinds for watch movements are mechanical devices intended to improve the accuracy of mechanical watches by counterbalancing the disturbances of the isochronism of the pendulum due to Earth's gravity. To do this, the regulating member comprising the sprung balance and the escapement are mounted in a cage which is rotated generally at a rate of one complete revolution in one minute.
[0003] Un inconvénient du tourbillon est sa grande sensibilité aux chocs. Ces derniers peuvent provoquer un déplacement latéral important du spiral par rapport à son axe, ce qui peut avoir un impact négatif sur la précision du mouvement comportant le tourbillon. A disadvantage of the vortex is its high sensitivity to shocks. These can cause a significant lateral displacement of the hairspring relative to its axis, which can have a negative impact on the accuracy of the movement comprising the vortex.
[0004] La présente invention a pour but de remédier à cet inconvénient en fournissant un tourbillon dont la précision n’est pas altérée en cas de chocs contrairement aux tourbillons de l’art antérieur. The present invention aims to overcome this disadvantage by providing a vortex whose accuracy is not impaired in case of shocks unlike vortices of the prior art.
[0005] A cet effet l’invention a pour objet un tourbillon pour mouvement horloger comportant une cage rotative portant un balancier, au moins un spiral et un échappement. Le tourbillon comprend en outre un porte-piton comportant un premier et un second piton sur l’un desquels est fixé l’extrémité extérieure du spiral. L’autre piton est agencé de manière à limiter le déplacement Iatéral du spiral dans un plan parallèle audit spiral en cas de choc. For this purpose the invention relates to a tourbillon for a watch movement comprising a rotary cage carrying a rocker, at least one hairspring and an escapement. The vortex further comprises a stud holder having a first and a second stud on one of which is fixed the outer end of the spiral. The other peg is arranged to limit the lateral movement of the hairspring in a plane parallel to said hairspring in case of shock.
[0006] Les caractéristiques de l’invention apparaîtront plus clairement à la lecture de la description d’une forme d’exécution préférentielle, donnée uniquement à titre d’exemple, nullement limitative en se référant à la fig. 1 qui représente une vue partielle en coupe du tourbillon. The characteristics of the invention will appear more clearly on reading the description of a preferred embodiment, given solely by way of example, in no way limiting with reference to FIG. 1 which shows a partial sectional view of the vortex.
[0007] Selon cette forme d’exécution préférentielle, l’organe réglant qui est monté dans la cage de tourbillon (non illustrée) comporte un balancier 2 connecté à un premier et à un second spiral 3, 4, lesquels sont agencés de manière coaxiale et sont décalés de 180° l’un par rapport à l’autre. L’utilisation de ces deux spiraux a notamment pour avantages par rapport à un simple spiral que le centre de gravité reste au centre (comme pour un spiral Breguet), que l’effet Grossmann sur le point d’attache est éliminé et que le défaut naturel de chaque spiral, conséquence de la production de la matière et de la déformation à froid (tirage et laminage), est divisé par deux. According to this preferred embodiment, the regulating member which is mounted in the vortex cage (not shown) comprises a rocker 2 connected to a first and a second spiral 3, 4, which are arranged in a coaxial manner. and are offset by 180 ° with respect to each other. The use of these two spirals has particular advantages over a simple spiral that the center of gravity remains in the center (as for a Breguet hairspring), that the Grossmann effect on the point of attachment is eliminated and that the defect naturalness of each spiral, as a consequence of the production of the material and the cold deformation (drawing and rolling), is divided by two.
[0008] Selon l’invention, un porte-piton 5 est monté sur la cage du tourbillon et comporte un premier et un second piton 6, 7 qui sont diamétralement opposés et sur chacun desquels sont fixés l’extrémité extérieure du premier, respectivement du second spiral 3, 4. Selon une forme d’exécution, chaque piton 6, 7 est pourvu d’une rainure 8, 9 disposée de manière à recevoir en partie, respectivement le premier et le second spiral 2, 3, lorsque ces derniers se détendent. Ces rainures 8, 9 sont dimensionnées pour limiter le déplacement latéral ainsi que le débat axial de chaque spiral qui pourrait être provoqué en cas de choc. According to the invention, a bolt carrier 5 is mounted on the vortex cage and comprises a first and a second bolt 6, 7 which are diametrically opposed and on each of which are fixed the outer end of the first, respectively of the second hairspring 3, 4. According to one embodiment, each peg 6, 7 is provided with a groove 8, 9 arranged to receive partially, respectively the first and the second hairspring 2, 3, when the latter relax. These grooves 8, 9 are dimensioned to limit the lateral displacement as well as the axial debate of each spiral that could be caused in case of impact.
[0009] Il va de soit que l’invention n’est pas limitée à la forme d’exécution préférentielle décrite ci-dessus mais qu’elle porte également sur un tourbillon conventionnel comportant un spiral unique. Dans ce cas, le porte-piton comporte un seul piton agencé pour limiter le déplacement latéral du spiral. It goes without saying that the invention is not limited to the preferred embodiment described above, but it also relates to a conventional vortex comprising a single spiral. In this case, the bolt carrier has a single piton arranged to limit the lateral displacement of the hairspring.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00493/11A CH704677B1 (en) | 2011-03-22 | 2011-03-22 | Tourbillon watch movement for with means of protection against shock. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00493/11A CH704677B1 (en) | 2011-03-22 | 2011-03-22 | Tourbillon watch movement for with means of protection against shock. |
Publications (2)
Publication Number | Publication Date |
---|---|
CH704677A2 CH704677A2 (en) | 2012-09-28 |
CH704677B1 true CH704677B1 (en) | 2016-06-15 |
Family
ID=46883079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH00493/11A CH704677B1 (en) | 2011-03-22 | 2011-03-22 | Tourbillon watch movement for with means of protection against shock. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH704677B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3081996B1 (en) * | 2015-04-16 | 2019-02-27 | Montres Breguet S.A. | Hairspring made of micro-machinable material with isochronism correction |
-
2011
- 2011-03-22 CH CH00493/11A patent/CH704677B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CH704677A2 (en) | 2012-09-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NV | New agent |
Representative=s name: P&TS SA, CH |
|
PL | Patent ceased |