EP3306415A1 - Mechanisches uhrwerk mit erfassung der gangreserve - Google Patents

Mechanisches uhrwerk mit erfassung der gangreserve Download PDF

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Publication number
EP3306415A1
EP3306415A1 EP16192232.3A EP16192232A EP3306415A1 EP 3306415 A1 EP3306415 A1 EP 3306415A1 EP 16192232 A EP16192232 A EP 16192232A EP 3306415 A1 EP3306415 A1 EP 3306415A1
Authority
EP
European Patent Office
Prior art keywords
wheel
movement
differential
cam
contact
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.)
Granted
Application number
EP16192232.3A
Other languages
English (en)
French (fr)
Other versions
EP3306415B1 (de
Inventor
Julien Saglini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP16192232.3A priority Critical patent/EP3306415B1/de
Priority to JP2017184573A priority patent/JP6411608B2/ja
Priority to CN201710888573.6A priority patent/CN107894700B/zh
Priority to US15/724,833 priority patent/US10162309B2/en
Publication of EP3306415A1 publication Critical patent/EP3306415A1/de
Priority to HK18111499.3A priority patent/HK1252110A1/zh
Application granted granted Critical
Publication of EP3306415B1 publication Critical patent/EP3306415B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/02—Devices allowing the motion of a rotatable part in only one direction
    • G04B11/022—Devices allowing the motion of a rotatable part in only one direction with a ratchet which makes contact with the rotating member by means of teeth
    • 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
    • G04B9/00—Supervision of the state of winding, e.g. indicating the amount of winding
    • 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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/16—Barrels; Arbors; Barrel axles
    • 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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/22—Compensation of changes in the motive power of the mainspring
    • 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
    • G04B9/00—Supervision of the state of winding, e.g. indicating the amount of winding
    • G04B9/005—Supervision of the state of winding, e.g. indicating the amount of winding by optical indication of the amount of winding

Definitions

  • the present invention relates to a mechanical clockwork movement provided with power reserve detection means.
  • a mechanical watchmaking movement generally comprises a barrel system driving at least one wheel at the load outlet and a wheel at the discharge outlet respectively connected to a load wheel and a discharge wheel of a differential.
  • a set of wheels in connection with an intermediate wheel of the differential controls a power-reserve display, but no movement element is provided for a movement-locking operation when the power-reserve is at zero.
  • the patent EP 0 568 499 B1 discloses a power reserve indicator device for a mechanical watch.
  • the indicator device comprises at least one star wheel with an indicator member, which is rotated during loading or unloading of the barrel.
  • the indicator organ makes it possible to display the power reserve of the watch. However nothing is planned to ensure a blocking of the movement, when the power reserve approaches zero.
  • the patent CH 698 752 B1 describes a timepiece, which includes a mechanism for indicating the power reserve. It includes two barrels facing each other and connected by a common tree, which controls the mechanism for displaying the power reserve. However nothing is planned to ensure a blocking of the movement, when the power reserve approaches zero.
  • the main purpose of the invention is therefore to overcome the drawbacks of the state of the art by proposing a mechanical clockwork movement provided with power reserve detection means and capable of blocking the operation of the movement when the power reserve is present. is close to zero.
  • the present invention relates to a mechanical clockwork movement provided with power reserve detection means, which comprises the characteristics of the independent claim 1.
  • An advantage of the mechanical clockwork movement is that it is possible with the same element displaceable by the cam wheel to control the indication of the power reserve and to perform a blocking by the locking member of the movement, when the power reserve is at zero. Even with the indication of the power reserve at zero, the barrel of the barrel system is still sufficiently loaded to operate the watch movement. However, advantageously, the mechanical clockwork is blocked for safety when the power reserve indication is at zero.
  • the Figures 1a and 1b represent a three-dimensional view from above of the components of the mechanical clockwork movement 1 in the normal operating position in figure 1a and in blocking position of the movement in figure 1b .
  • the mechanical clockwork movement 1 comprises at least one not shown barrel system, which is arranged for example on one side of a movement watch plate or another support plate.
  • This barrel system can be single barrel or two barrel or more than two well known barrels and has a load output and a discharge outlet to drive a time base wheel.
  • the mechanical clockwork movement 1 comprises for example a differential 2, which is rotatably mounted about an axis of rotation, and connected respectively to the charge outlet and the discharge outlet of the barrel system.
  • the differential 2 is connected directly or via a gear stage or speed multiplier to the load output and the discharge output of the barrel system.
  • the differential 2 is connected through a speed reduction gear stage to the load output and the discharge output of the cylinder system so as to reduce the rotation for the detection of the power reserve. explained below.
  • the differential 2 comprises a first load wheel 2c and a second discharge wheel 2d disposed preferably on the same axis of rotation as the first load wheel.
  • the differential 2 further comprises an intermediate wheel 2i between the load wheel 2c and the discharge wheel 2d and in contact with the load wheel and the discharge wheel in particular by means of a ball bearing arrangement or with rollers.
  • the load wheel 2c In normal operation of the watch movement after a charging operation of the barrel system, the load wheel 2c remains fixed without rotation, while the discharge wheel 2d is rotating. In this way, the intermediate wheel 2i is rotated in the same direction as the discharge wheel 2d, but with a rotational speed smaller than the rotational speed of the discharge wheel 2d.
  • the intermediate wheel 2i of the differential 2 is connected to a cam follower 4, for example by means of a speed reduction gear stage 3.
  • This reducing stage may be a drive wheel 3, the outer periphery of which may be toothed. meshing with an external toothing of the intermediate wheel 2i, while a central pinion 3 'of smaller diameter comes into contact with the cam follower 4.
  • This cam follower 4 can also be a wheel 4, on which is arranged, fixed on the axis of rotation, a disk or at least one angular sector 4 'acting as a cam for driving a movable member 5 for actuating a power reserve indicator.
  • the disk or the angular sector can come from material or be made with the wheel of the mobile 4 in contact with the central gear 3 'of the drive wheel 3.
  • the wheel of the mobile 4 and the central gear 3' can be with a toothing to mesh with each other.
  • the periphery of the disc or the angular sector 4 defines a curve with a distance to the axis of rotation variable from a first end of the disc or the angular sector 4' to a second end of the disc or the angular sector.
  • the radius or distance to the axis of rotation of the periphery of the disk or the angular sector is variable from the first end to the second end.
  • the distance to the axis of rotation can decrease at least on a portion of the disk or the angular sector between the first end and the second end and in a regular manner.
  • the distance d1 to the axis of rotation of the first end of the disk or the angular sector is greater than the distance d2 to the axis of rotation of the second end of the disk or of the angular sector 4 'to control a blockage of the movement .
  • the displaceable element 5 comprises a wedge 15 for coming into contact with the periphery of the disk or of the angular sector 4 'while being pushed against the periphery by a spring 6 as shown in FIGS. Figures 1a and 1b .
  • This spring 6 pushes against a lateral surface the displaceable element 5 towards the periphery of the disc or the angular sector 4 '.
  • This displaceable element 5 may be rotatably mounted about an axis of rotation.
  • the displaceable member 5 may be in the form of a flat-shaped rake, but any other form for this displaceable member may be envisaged.
  • a power reserve indicator 7 is thus provided to display a full charge indication.
  • This power reserve indicator comprises a display wheel 7 with possibly a not shown needle fixed on the axis of rotation of the display wheel 7.
  • the display wheel 7 is for example rotated in contact with a wheel. inner surface of an opening 17 oblong rake 5 away from its axis of rotation.
  • the display wheel 7 may be toothed to mesh with an internal toothing of the oblong-shaped opening 17 of the rake 5.
  • the radius or distance from the corner 15 of the rake 5 in contact with the center of rotation is the smallest at the second end of the disk or the angular sector.
  • the rake 5 comprises a locking portion 15 'coming into contact with a locking member 10.
  • This locking member 10 is directly connected to the discharge outlet of the barrel system or to the discharge wheel 2d differential 2 to block the watch movement, when the power reserve (RDM) is zero.
  • This locking member 10 is an intermediate mobile between the discharge discharge wheel of the barrel system and the discharge wheel 2d of the differential and can also act as a reducing stage. It can also be envisaged to have the blocking member 10 connected to other wheels of a reducing stage from the discharge outlet of the barrel system to the discharge wheel 2d of the differential 2.
  • the blocking 10 takes the form of a rod 11 with a toothed portion or not, which is rotatably mounted. This wheel-shaped portion 11 'on the rod 11 can come into contact with an output wheel of the barrel system or preferably with the discharge wheel 2d of the differential 2. At least one tooth 12' on the locking member 10 rotatably mounted is provided to be hooked by a notch 15 'of the blocking portion of the rake 5, when the power reserve is zero.
  • the locking member 10 thus comprises a star-shaped wheel 12 for example with three teeth 12 ', which is fixed on the rod 11 above the wheel-shaped portion 11' mounted on the rod 11 in contact with the discharge wheel 2d of the differential 2.
  • the number of locking teeth provided is not important provided that one of the teeth comes into contact with the notch 15 'of the locking portion of the rake 5.
  • the mechanical watchmaking movement with power reserve detection means can be designed by those skilled in the art without departing from the scope of the invention defined by the claims. It can be provided that the movable member for actuating the power reserve indicator and coming into contact with the locking member when the power reserve is at zero is moved rectilinearly and not rotatably by the moving member. cam.
  • the watch movement may be in the form of a module with all the elements arranged in said module.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Electromechanical Clocks (AREA)
  • Retarders (AREA)
  • Transmission Devices (AREA)
EP16192232.3A 2016-10-04 2016-10-04 Mechanisches uhrwerk mit erfassung der gangreserve Active EP3306415B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP16192232.3A EP3306415B1 (de) 2016-10-04 2016-10-04 Mechanisches uhrwerk mit erfassung der gangreserve
JP2017184573A JP6411608B2 (ja) 2016-10-04 2017-09-26 パワーリザーブ検出機能付きの機械式計時器用ムーブメント
CN201710888573.6A CN107894700B (zh) 2016-10-04 2017-09-27 具有动力储备检测的机械钟表机芯
US15/724,833 US10162309B2 (en) 2016-10-04 2017-10-04 Mechanical timepiece movement with power reserve detection
HK18111499.3A HK1252110A1 (zh) 2016-10-04 2018-09-06 具有動力儲備檢測的機械鐘錶機芯

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16192232.3A EP3306415B1 (de) 2016-10-04 2016-10-04 Mechanisches uhrwerk mit erfassung der gangreserve

Publications (2)

Publication Number Publication Date
EP3306415A1 true EP3306415A1 (de) 2018-04-11
EP3306415B1 EP3306415B1 (de) 2020-05-20

Family

ID=57047125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16192232.3A Active EP3306415B1 (de) 2016-10-04 2016-10-04 Mechanisches uhrwerk mit erfassung der gangreserve

Country Status (5)

Country Link
US (1) US10162309B2 (de)
EP (1) EP3306415B1 (de)
JP (1) JP6411608B2 (de)
CN (1) CN107894700B (de)
HK (1) HK1252110A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3992727A1 (de) * 2020-10-30 2022-05-04 ETA SA Manufacture Horlogère Suisse Mechanisches uhrwerk mit erfassung der gangreserve

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3333637B1 (de) * 2016-12-12 2021-09-22 ETA SA Manufacture Horlogère Suisse Mechanisches uhrwerk mit erfassung der gangreserve
EP3627233B1 (de) * 2018-09-19 2022-03-30 ETA SA Manufacture Horlogère Suisse Anzeigemechanismus der gangreserve einer uhr

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0568499B1 (de) 1992-04-29 1997-05-21 Exidel Sa Vorrichtung zur Anzeige der Gangreserve einer Uhr
EP1760548A1 (de) * 2005-09-01 2007-03-07 Montres Journe SA Uhr mit einer Vorrichtung zur Zeitangabe durch Läutwerk
CH698752B1 (fr) 2004-11-10 2009-10-15 Frank Mueller Watchland S A Pièce d'horlogerie avec mécanisme d'indication de la réserve de marche.
EP2503405A1 (de) * 2011-03-22 2012-09-26 Montres Breguet SA Mechanismus zur selektiven stoppen des Schlagwerks einer Uhr in Abhängigkeit von der verfügbaren Gangreserve
CH710320A2 (fr) * 2014-10-31 2016-05-13 Le Cercle Des Horlogers Sa Piece d'horlogerie comportant une source d'énergie mécanique et un organe de commande.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE428958T1 (de) * 1999-08-04 2009-05-15 Piguet Frederic Sa Vorrichtung zur anzeige der gangreserve einer uhr
EP2560057B1 (de) * 2011-08-17 2014-04-02 ETA SA Manufacture Horlogère Suisse Uhrwerk mit reduzierter Höhe und großer Gangreserve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0568499B1 (de) 1992-04-29 1997-05-21 Exidel Sa Vorrichtung zur Anzeige der Gangreserve einer Uhr
CH698752B1 (fr) 2004-11-10 2009-10-15 Frank Mueller Watchland S A Pièce d'horlogerie avec mécanisme d'indication de la réserve de marche.
EP1760548A1 (de) * 2005-09-01 2007-03-07 Montres Journe SA Uhr mit einer Vorrichtung zur Zeitangabe durch Läutwerk
EP2503405A1 (de) * 2011-03-22 2012-09-26 Montres Breguet SA Mechanismus zur selektiven stoppen des Schlagwerks einer Uhr in Abhängigkeit von der verfügbaren Gangreserve
CH710320A2 (fr) * 2014-10-31 2016-05-13 Le Cercle Des Horlogers Sa Piece d'horlogerie comportant une source d'énergie mécanique et un organe de commande.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3992727A1 (de) * 2020-10-30 2022-05-04 ETA SA Manufacture Horlogère Suisse Mechanisches uhrwerk mit erfassung der gangreserve
US11971687B2 (en) 2020-10-30 2024-04-30 Eta Sa Manufacture Horlogère Suisse Mechanical horological movement with power reserve detection

Also Published As

Publication number Publication date
US10162309B2 (en) 2018-12-25
CN107894700A (zh) 2018-04-10
HK1252110A1 (zh) 2019-05-17
US20180095422A1 (en) 2018-04-05
CN107894700B (zh) 2019-12-06
JP6411608B2 (ja) 2018-10-24
EP3306415B1 (de) 2020-05-20
JP2018059920A (ja) 2018-04-12

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