EP0924579B1 - Dispositif de limitation de la puissance fournie par une masse oscillante pour instruments de petit volume - Google Patents
Dispositif de limitation de la puissance fournie par une masse oscillante pour instruments de petit volume Download PDFInfo
- Publication number
- EP0924579B1 EP0924579B1 EP19970120560 EP97120560A EP0924579B1 EP 0924579 B1 EP0924579 B1 EP 0924579B1 EP 19970120560 EP19970120560 EP 19970120560 EP 97120560 A EP97120560 A EP 97120560A EP 0924579 B1 EP0924579 B1 EP 0924579B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ring
- mass
- weight
- oscillating
- instrument
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000035939 shock Effects 0.000 description 15
- 210000002445 nipple Anatomy 0.000 description 7
- 238000004804 winding Methods 0.000 description 7
- 239000011324 bead Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000000703 anti-shock Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
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
- G04B5/00—Automatic winding up
- G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
- G04B5/18—Supports, suspensions or guide arrangements, for oscillating weights
Definitions
- the present invention relates to a device for limitation of the mechanical power likely to be supplied by an oscillating weight rotating in a cage and eccentrically mounted on a holding mobile for drive an energy generator operating an instrument small volume.
- the invention relates to such device arranged in a wristwatch to wind up a mechanical movement or to power a circuit electronic.
- the invention may relate to a unit electronics associated with reception means and / or transmission of electromagnetic signals.
- the timepiece includes a mass oscillating winding supported by an elastic arm thin, intended to absorb the axial shocks that can undergo the mass.
- This arm is integral with a pinion meshing with a toothed sector.
- the latter carries a cooperating ratchet with the ratchet of the barrel.
- Two shock absorbing springs limit mass oscillations.
- the elastic arm is not straight, but extends in a zigzag so as to absorb the radial shocks to which the mass is subjected. In this document, there is no suggestion that the mass should come touch the cage in which it moves to brake this if the mechanical power developed by it exceeds those supplied in normal use of the watch.
- the friction is calculated so that the wheel slips on the tree when a shock is applied to the mass or, if we prefer, when the torque applied to the rotor exceeds one admissible value. This avoids any breakage of the mechanism. Note however that in manufacturing in large series, friction of constant value is difficult to insure and therefore requires adjustments which take time.
- the document CH 335 604 describes a system for brake and stop an oscillating weight of a watch mechanical with automatic winding when the spring motor is fully tensioned and thus avoid wear unnecessary rewinding mechanism.
- This system includes a slide activated by a cam-shaped part a wheel linked to the barrel, the end of which is formed by an elastic bent arm which ends with a head spherical constituting a brake shoe. When the motor spring is fully tensioned, this shoe comes rub against an internal braking surface of the oscillating mass which has a certain number of recesses in one of which the brake shoe comes to engage to immobilize the oscillating mass when it has been braked enough.
- This document does not propose to limit the mechanical power supplied by the oscillating mass when it undergoes shocks radial or axial, let alone a support path part of the watch case that this mass comes to touch to be braked at the time of these shocks.
- Document DE 10 70 554 describes a system of mounting of an oscillating weight on the central axis of a automatic watch including a spring in hairpin shape whose "closed end” is rigidly fixed to the mass and whose "ends open “end with semicircular parts that enter a groove in the central axis for partially surround it.
- the diameter of the opening of the oscillating mass for the passage of the central axis is designed so as to obtain friction coupling between the oscillating weight and the central axis.
- the absorption or shock absorption is provided by means of suspension of the oscillating weight.
- the present invention is remarkable in that the cage has a support track forming part of the housing that comprises the instrument, this support path being arranged at low distance of the path traveled by the oscillating mass and that the oscillating mass is elastically mounted on said retaining mobile so as to come and touch said support path and to brake said mass when it provides mechanical power exceeding substantially those provided in normal use of said instrument.
- the power limitation device according to the invention is shown in section in FIG. 1.
- a watch case comprising a middle part 15, a notched base 17 and a crystal 23.
- This box encloses a movement 20 surmounted by a dial 22.
- movement 20 could be find an electronic unit used for example for a pager.
- this unit could be combined with a movement of shows as described in the document EP-A-0 569 868.
- Figure 1 shows an oscillating weight 1 rotating in a cage formed by the box, this mass being eccentrically mounted on a holding mobile 4 (see also figure 2).
- the holding mobile 4 drives an energy generator suitable for operating a small volume instrument which can be a timepiece or a pager, or the combinations of the two, as expressed above.
- the energy generator can be a mounted spring in a barrel as is well known from watches to automatic winding.
- the mechanical connection existing between the oscillating mass and the barrel can be performed, for example, as described in the document CH-A-143 763.
- the energy generator can be a generator producing an electrical voltage as described for example in document EP-B-0 547 083 where the connection mechanics between the mass and the generator is explained.
- the cage formed by the box has a support path 2, this path being placed a short distance from the path traveled by the mass oscillating 1.
- this mass will come touch support track 2 and will be braked by said support path when it provides mechanical power significantly exceeding those supplied in normal use of the instrument.
- the mechanical power susceptible to be supplied by the oscillating mass is limited to a value above which the mechanism would be inevitably deteriorated either by breaking the tree supporting the mass, either by breaking the teeth of the gear train transmission, as we said in the preamble to this description.
- the holding mobile 4 is a ring 5 at the periphery of which are formed or cut two opposite arms 6 and 7.
- a nipple 8 is disposed at the birth 9 of arms 6 and 7, nipple on which is likely to rotate the mass 1.
- the mass 1 is held in place by nipples 10 and 11, the nipple 10 being disposed at the end 12 of the arm 6 and the stud 11 being disposed at the end 13 of the arm 7.
- a wheel (not shown) which meshes in a known manner with the mechanism driving the energy generator, whether it's a spring winding a barrel or generator producing an electrical voltage.
- the oscillating mass 1 is made of heavy material, for example in cast iron.
- the retaining ring 5 can be made of plastic, as well as arms 6 and 7 which are attached to it.
- Nipples 8, 10 and 11 can be come of matter with the ring 5. If they are made in plastic material, it will be understood that once the mass 1 placed on the ring 5, it will suffice to heat the end nipples 10 and 11 for riveting the mass 1 on the ring 5.
- the area 32 of the end 31 of the mass 1 comes to touch the path support 2 and brakes mass 1.
- the end 31 of mass 1 approaches the center of the ring in the direction of arrow B2
- the end 30 deviates from it in the direction of the arrow A2 and it is the zone 33 of the end 30 of the mass 1 which comes to touch the support path 2 to brake the mass.
- the way to resiliently mount the mass 1 on the retaining ring 5 is not limited to the execution shown in Figures 2 and 3.
- the constant elastic of the arm or spring will be chosen so that the mass braking occurs as soon as the power mechanics provided by the oscillating mass exceeds those supplied in normal use, therefore exceeds a certain limit.
- a mass acceleration of 500 g as a limit value.
- the support path forming part of the cage the instrument can be performed in different ways.
- a first way is shown in figure 1.
- the path support 2 includes a first support ring 14 making part of the middle 15 that has the box 5 and a second ring 16 forming part of the bottom 17 of the same box. It is observed that a space 18 is provided between the two rings, space in which a bead can rotate 19 in the form of a niche, this bead being disposed on the outer edge of the mass 1.
- the mass 1 On either side of the bead 19, the mass 1 has a first arcuate zone 40 likely to come into contact with the first support ring 14 and a second arcuate zone 41 likely to come touch the second support ring 16 to ensure the effect brake claimed.
- the bead 19 in the form of niche inserted between the two rings is intended to limit the impact that the mass could take during shocks axial, i.e. directed in the direction of the shaft around which the mass revolves, these shocks can lead at break of the mass-bearing tree if this limitation did not exist.
- Figure 1 also shows that the first ring 14 can also be used as a casing circle at movement 20 that the instrument comprises.
- FIG. 4 A second way to make support path 2 is shown in Figure 4.
- this support path presents the shape of a stirrup 25 inside which can oscillate the mass 1.
- mass 1 is devoid of bead and its outer edge is straight. During radial shocks, this edge touches the bottom of the caliper 25 to brake the mass.
- Wings 42 and 43 of the stirrup 25 are intended to limit the amount of time the mass 1 during axial shocks, as explained upper. Note that to facilitate the mounting of the mass in the stirrup, the wing 43 can be attached to the caliper afterwards or be part of the bottom 17 of the box.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
- La figure 1 est une coupe dans la boíte de l'instrument montrant la masse oscillante coopérant avec une forme de chemin d'appui,
- La figure 2 est une vue en perspective de la masse oscillante montée sur un mobile de maintien selon l'invention,
- La figure 3 est une vue en perspective du mobile de maintien de la figure 1 sans la masse oscillante, et
- La figure 4 est une coupe dans la boíte de l'instrument montrant la masse oscillante coopérant avec une autre forme de chemin d'appui.
Claims (8)
- Dispositif de limitation de la puissance mécanique susceptible d'être fournie par une masse oscillante (1) tournant dans une cage et montée excentriquement sur un mobile (4) de maintien pour entraíner un générateur d'énergie actionnant un instrument de petit volume, caractérisé par le fait que la cage comporte un chemin d'appui (2) faisant partie du boítier que comporte l'instrument, ce chemin d'appui étant disposé à faible distance du chemin parcouru par la masse oscillante (1) et que la masse oscillante est montée élastiquement sur ledit mobile (4) de maintien de manière à venir toucher ledit chemin d'appui (2) et à freiner ladite masse (1) quand elle fournit une puissance mécanique dépassant sensiblement celles fournies en usage normal dudit instrument.
- Dispositif selon la revendication 1, caractérisé par le fait que le générateur d'énergie est un ressort monté dans un barillet.
- Dispositif selon la revendication 1, caractérisé par le fait que le générateur d'énergie est une génératrice produisant une tension électrique.
- Dispositif selon la revendication 1, caractérisé par le fait que le mobile de maintien (4) est un anneau (5) et que le montage élastique de la masse oscillante sur cet anneau est réalisé au moyen de deux bras (6, 7) opposés découpés dans l'anneau et dont la forme épouse le pourtour de l'anneau, la masse étant d'une part susceptible de pivoter autour d'un téton (8) disposé à la naissance (9) des bras (6, 7) et d'autre part maintenue en place par un téton (10, 11) disposé à l'extrémité (12, 13) de chacun des bras.
- Dispositif selon la revendication 4, caractérisé par le fait que l'anneau de maintien (5) est fait en matière plastique et que la masse oscillante (1) est en matériau lourd.
- Dispositif selon la revendication 1, caractérisé par le fait que le chemin d'appui (2) comporte un premier anneau d'appui (14) faisant partie d'une carrure (15) que présente la boíte et un second anneau (16) faisant partie d'un fond (17) que présente la même boíte, un espace (18) étant ménagé entre les deux anneaux et que le bord extérieur de la masse (1) comporte un bourrelet en forme de créneau (19), ce bourrelet étant disposé dans ledit espace (18).
- Dispositif selon la revendication 6, caractérisé par le fait que le premier anneau (14) est utilisé comme cercle d'encageage à un mouvement (20) que comporte l'instrument.
- Dispositif selon la revendication 1, caractérisé par le fait que le chemin d'appui (2) présente la forme d'un étrier (25) à l'intérieur duquel peut osciller la masse (1).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69725743T DE69725743T2 (de) | 1997-11-24 | 1997-11-24 | Vorrichtung zur Begrenzung der durch eine Schwungmasse gelieferten Leistung in kleinen Instrumenten |
EP19970120560 EP0924579B1 (fr) | 1997-11-24 | 1997-11-24 | Dispositif de limitation de la puissance fournie par une masse oscillante pour instruments de petit volume |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19970120560 EP0924579B1 (fr) | 1997-11-24 | 1997-11-24 | Dispositif de limitation de la puissance fournie par une masse oscillante pour instruments de petit volume |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0924579A1 EP0924579A1 (fr) | 1999-06-23 |
EP0924579B1 true EP0924579B1 (fr) | 2003-10-22 |
Family
ID=8227670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19970120560 Expired - Lifetime EP0924579B1 (fr) | 1997-11-24 | 1997-11-24 | Dispositif de limitation de la puissance fournie par une masse oscillante pour instruments de petit volume |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0924579B1 (fr) |
DE (1) | DE69725743T2 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007046689B4 (de) * | 2007-06-01 | 2009-09-17 | Konrad Damasko | Mechanischer Aufzug für Armbanduhren sowie Armbanduhr mit einem solchen Aufzug |
CH712163A1 (fr) | 2016-02-16 | 2017-08-31 | Mps Micro Prec Systems Ag | Roulement à billes et système d'accouplement comportant un tel roulement à billes. |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1070554B (de) * | 1959-12-03 | Friedrich Mauthc Gesellschaft mit beschränkter Haftung, Schwenningcn/ Neckar | Sfoßdämpfende und reibungsschlüssige Aufhängung der Schwingmasse in Selbstaufzuguhren | |
CH335604A (de) * | 1954-11-05 | 1959-01-15 | Junghans Geb Ag | Uhrwerk mit Schwungmassenaufzug |
CH331275A (fr) * | 1956-11-19 | 1958-07-15 | Omega Brandt & Freres Sa Louis | Montre à remontage automatique par rotor |
CH371993A (fr) * | 1961-09-06 | 1963-09-15 | Rolex Montres | Masse de remontage oscillante pour pièce d'horlogerie |
CH1341368A4 (fr) * | 1968-09-06 | 1970-08-31 | ||
KR950001429Y1 (ko) * | 1988-01-25 | 1995-03-06 | 세이꼬 엡슨 가부시끼가이샤 | 발전장치 부착 전자 팔목시계 |
-
1997
- 1997-11-24 EP EP19970120560 patent/EP0924579B1/fr not_active Expired - Lifetime
- 1997-11-24 DE DE69725743T patent/DE69725743T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69725743D1 (de) | 2003-11-27 |
DE69725743T2 (de) | 2004-07-29 |
EP0924579A1 (fr) | 1999-06-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1085383B1 (fr) | Dispositif antichoc pour générateur de puissance à masse oscillante | |
EP1843225B1 (fr) | Mécanisme inverseur pour entraînement rotatif unidirectionnel d'un mobile | |
EP2583143B1 (fr) | Mécanisme d'avance par saut périodique d'une cage de tourbillon ou d'une cage de carrousel | |
EP2166419A1 (fr) | Mouvement horloger comportant un dispositif à force constante | |
EP2397921B1 (fr) | Mécanisme d'avance par saut périodique d'une cage de carrousel | |
CH690973A5 (fr) | Pièce d'horlogerie dont le mécanisme est entraîné par des moyens mécaniques et comprenant un dispositif d'indication de réserve de marche. | |
EP3612896A1 (fr) | Dispositif de blocage pour l'horlogerie | |
CH692874A5 (fr) | Instrument de petit volume muni d'un dispositif de limitation de la puissance mécanique fournie par une masse oscillante. | |
EP2313812B1 (fr) | Mouvement pour piece d'horlogerie a dispositif de remontage automatique embarque | |
EP2054780B1 (fr) | Dispositif de commande pour piece d'horlogerie | |
EP0924579B1 (fr) | Dispositif de limitation de la puissance fournie par une masse oscillante pour instruments de petit volume | |
EP3306415B1 (fr) | Mouvement d'horlogerie mecanique a detection de reserve de marche | |
EP2096504B1 (fr) | Mécanisme d'affichage des secondes mortes | |
WO2006103560A2 (fr) | Dispositif de remontage automatique | |
EP1213626B1 (fr) | Dispositif de transmission antichoc pour l'entraînement d'une génératrice par une masse oscillante, notamment dans une montre | |
CH692875A5 (fr) | Dispositif d'entraînement d'un générateur et instrument de petit volume muni d'un tel dispositif. | |
EP2564276A1 (fr) | Pièce d'horlogerie | |
EP0851320B1 (fr) | Pièce d'horlogerie dont le mécanisme est entraíné par des moyens mécaniques et comprenant un dispositif de réserve de marche | |
EP0918265B1 (fr) | Dispositif d'entraínement d'un générateur pour instrument de petit volume | |
WO2006058925A2 (fr) | Piece d'horlogerie a animation | |
CH717664A2 (fr) | Pièce d'horlogerie comprenant un dispositif de commande étanche. | |
WO2020234665A1 (fr) | Mouvement de montre à remontage automatique | |
CH704249A1 (fr) | Organe moteur pour mouvement horloger. | |
CH693971A5 (fr) | Dispositif de transmission antichoc pour l'entra¾nement d'une génératrice par une masse oscillante, notamment dans une montre. | |
CH716126B1 (fr) | Mécanisme de force constante pour pièce d'horlogerie. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
17P | Request for examination filed |
Effective date: 19991223 |
|
AKX | Designation fees paid |
Free format text: DE FR |
|
17Q | First examination report despatched |
Effective date: 20010510 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ETA SA MANUFACTURE HORLOGERE SUISSE |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: REBEAUD, JEAN-PHILIPPE |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR |
|
REF | Corresponds to: |
Ref document number: 69725743 Country of ref document: DE Date of ref document: 20031127 Kind code of ref document: P |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20040723 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20141023 Year of fee payment: 18 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20141124 Year of fee payment: 18 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 69725743 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20160729 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160601 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20151130 |