CH457285A - Torsion oscillator for electronic watch - Google Patents
Torsion oscillator for electronic watchInfo
- Publication number
- CH457285A CH457285A CH1017064A CH1017064A CH457285A CH 457285 A CH457285 A CH 457285A CH 1017064 A CH1017064 A CH 1017064A CH 1017064 A CH1017064 A CH 1017064A CH 457285 A CH457285 A CH 457285A
- Authority
- CH
- Switzerland
- Prior art keywords
- torsion
- oscillator
- axis
- support
- oscillation
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
- G04C3/10—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
- G04C3/101—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details
-
- 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
- G04B17/04—Oscillators acting by spring tension
- G04B17/10—Oscillators with torsion strips or springs acting in the same manner as torsion strips, e.g. weight oscillating in a horizontal plane
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
- G04C3/10—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
- G04C3/101—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details
- G04C3/102—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details of the mechanical oscillator or of the coil
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Description
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Oscillateur à torsion pour montre électronique On a déjà proposé de monter un oscillateur du type diapason sur un support élastique de manière à améliorer le couplage mécanique des deux branches du résonateur. A cet effet, le pied du résonateur est fixé à l'extrémité de deux ou trois tiges cylindriques.
Les recherches effectuées pour faire bénéficier les oscillateurs à torsion des avantages offerts par ce montage élastique ont toutefois montré que l'utilisation de tiges cylindriques ne garantit pas une rotation facile des masses oscillantes et n'évite pas de manière suffisante le risque de basculement du support. Comme c'est le cas dans une construction connue.
La présente invention concerne précisément un oscillateur obviant à ces inconvénients. L'oscillateur à torsion pour montre électronique, objet de l'invention, comprend au moins deux masses oscillantes fixées à chacune des extrémités d'un dispositif à ressort de torsion et des moyens pour l'entretien électrique des oscillations, 1e dispositif à ressort de torsion étant fixé entre les deux masses sur un support perpendiculaire à l'axe d'oscillation et monté par des moyens élastiques à torsion sur une base de manière à permettre le couplage mécanique de l'oscillation des deux masses,
caractérisé par le fait que les moyens élastiques sont constitués par au moins trois lames, inscrites dans au moins deux plans se coupant selon un axe parallèle à l'axe de l'oscillateur.
Le dessin annexé représente, à titre d'exemple, une forme d'exécution de l'invention.
La fig. 1 en est une coupe longitudinale.
La fig. 2 est une coupe selon II-II de la fig. 1. L'oscillateur présente deux bras oscillants superposés 1 et 2 fixés chacun à l'une des extrémités d'un dispositif à ressort 3, lui-même encastré par sa partie centrale dans un support constitué par un plateau. Ce dernier, qui déborde latéralement des bras, est monté à l'aide de quatre lames élastiques 5, fixées à la platine 6 du mouvement, de part et d'autre de ces bras.
Les lames élastiques 5 sont inscrites dans des plans passant par l'axe d'oscillation. Les autres caractéristiques techniques de l'oscillateur ainsi que son fonctionnement, ont été décrits en détail dans le brevet suisse No 385745 et ne seront pas repris ici.
La disposition des lames élastiques 5 assure une rotation limitée facile aux masses de l'oscillateur et s'oppose au basculement du support 4. Bien entendu ce support 4, qui dans le présent exemple d'exécution est constitué par un plateau, pourrait être remplacé par des éléments radiaux, par exemple des bras fixés au dispositif à ressort 3, lesquels seraient alors directement montés sur les lames élastiques 5.
Cette fixation de l'oscillateur permet un couplage de torsion à fréquence relativement basse, voisine de la fréquence propre utile de l'oscillateur, tandis qu'elle est très rigide par rapport à une sollicitation en bascu- lement, par exemple sous l'effet de chocs extérieurs.
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Torsion oscillator for electronic watches It has already been proposed to mount an oscillator of the tuning fork type on an elastic support so as to improve the mechanical coupling of the two branches of the resonator. For this purpose, the resonator foot is fixed to the end of two or three cylindrical rods.
Research carried out to provide torsion oscillators with the advantages offered by this resilient assembly have shown, however, that the use of cylindrical rods does not guarantee easy rotation of the oscillating masses and does not sufficiently avoid the risk of the support tipping over. . As is the case in a known construction.
The present invention relates specifically to an oscillator obviating these drawbacks. The torsion oscillator for an electronic watch, which is the subject of the invention, comprises at least two oscillating masses fixed to each of the ends of a torsion spring device and means for the electrical maintenance of the oscillations. torsion being fixed between the two masses on a support perpendicular to the axis of oscillation and mounted by elastic torsion means on a base so as to allow the mechanical coupling of the oscillation of the two masses,
characterized in that the elastic means are constituted by at least three blades, inscribed in at least two planes intersecting along an axis parallel to the axis of the oscillator.
The accompanying drawing represents, by way of example, one embodiment of the invention.
Fig. 1 is a longitudinal section.
Fig. 2 is a section on II-II of FIG. 1. The oscillator has two superimposed oscillating arms 1 and 2 each fixed to one of the ends of a spring device 3, itself embedded by its central part in a support consisting of a plate. The latter, which protrudes laterally from the arms, is mounted using four elastic blades 5, fixed to the plate 6 of the movement, on either side of these arms.
The elastic blades 5 are inscribed in planes passing through the axis of oscillation. The other technical characteristics of the oscillator as well as its operation have been described in detail in Swiss patent No. 385745 and will not be repeated here.
The arrangement of the elastic blades 5 ensures an easy limited rotation of the masses of the oscillator and opposes the tilting of the support 4. Of course this support 4, which in the present example of execution consists of a plate, could be replaced. by radial elements, for example arms fixed to the spring device 3, which would then be directly mounted on the elastic leaves 5.
This fixation of the oscillator allows torsional coupling at a relatively low frequency, close to the useful natural frequency of the oscillator, while it is very rigid with respect to a tilting stress, for example under the effect external shocks.
Claims (1)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1017064A CH457285A (en) | 1964-08-04 | 1964-08-04 | Torsion oscillator for electronic watch |
| CH1017064D CH1017064A4 (en) | 1964-08-04 | 1964-08-04 | |
| DE1965F0028552 DE1928978U (en) | 1964-08-04 | 1965-08-02 | TORSION OSCILLATOR FOR ELECTRIC WATCHES. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1017064A CH457285A (en) | 1964-08-04 | 1964-08-04 | Torsion oscillator for electronic watch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH457285A true CH457285A (en) | 1967-12-29 |
Family
ID=4360135
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1017064A CH457285A (en) | 1964-08-04 | 1964-08-04 | Torsion oscillator for electronic watch |
| CH1017064D CH1017064A4 (en) | 1964-08-04 | 1964-08-04 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1017064D CH1017064A4 (en) | 1964-08-04 | 1964-08-04 |
Country Status (2)
| Country | Link |
|---|---|
| CH (2) | CH457285A (en) |
| DE (1) | DE1928978U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH911567A4 (en) * | 1967-06-27 | 1970-10-30 |
-
1964
- 1964-08-04 CH CH1017064A patent/CH457285A/en unknown
- 1964-08-04 CH CH1017064D patent/CH1017064A4/xx unknown
-
1965
- 1965-08-02 DE DE1965F0028552 patent/DE1928978U/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1928978U (en) | 1965-12-09 |
| CH1017064A4 (en) | 1967-12-29 |
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