Modular mechanical timepiece movement with functional modules

Patent metadata

Field	Value
Publication number	US-9557713-B2
Application number	US-201414333138-A
Country	US
Kind code	B2
Filing date	Jul 16, 2014
Priority date	Dec 13, 2011
Publication date	Jan 31, 2017
Grant date	Jan 31, 2017

Abstract

A timepiece sub-assembly includes, irreversibly fixed to a main plate and each irreversibly pre-adjusted by the irreversible securing of adjustment and/or assembly components, after the particular timepiece function thereof has been adjusted and function checked on the test bench, functional modules including a gear train module, a display module, and a time-setting module. Other mechanical sub-assemblies, each irreversibly fixed to the preceding lower order mechanical sub-assembly, include various modules including motor module, frame-mounted self-winding device module, escapement holder regulating module, motion work train, date module, and self-winding module. A mechanical movement including at least one mechanical sub-assembly of this type and a watch including a mechanical movement of this type are also disclosed. A method of assembling mechanical sub-assemblies of this type by the irreversible securing of mechanical sub-assemblies and irreversibly pre-adjusted modules is also disclosed.

First claim

What is claimed is:

1. An assembly comprising:
a first mechanical timepiece sub-assembly, wherein the sub-assembly comprises at least one main plate on which is irremovably fixed a gear train module which is irreversibly adjusted by irremovable securing of adjustment and/or assembly components, said gear train module including an input wheel set formed by an input pinion, arranged to cooperate with a drum of a motor module, and including a first output wheel set formed by a plate arranged to cooperate with an escapement pinion of an escapement mechanism or of a regulating module, said gear train module further including a second output wheel set formed by a display train cooperating with a display module which is irreversibly adjusted by the irremovable securing of adjustment and/or assembly components, said display module is irremovably fixed to said main plate and includes an output wheel set formed by at least one indicator arranged to cooperate with a complementary indicator or with a dial, said main plate including a bearing surface to receive a time-setting module which is a first functional module to perform a particular timepiece function, irreversibly adjusted by the irremovable securing of adjustment and/or assembly components comprised in said first functional module after said particular timepiece function has been adjusted and function checked on a test bench, and said main plate including at least one pivot to cooperate with said time-setting module, which is irremovably fixed to said main plate and includes a bore in which said pivot is accommodated, and
a second mechanical timepiece sub-assembly including, irremovably secured to said first mechanical sub-assembly, a second functional module to perform a particular timepiece function, irreversibly adjusted by the irremovable securing of adjustment and/or assembly components comprised in said second functional module after said particular timepiece function has been adjusted and function checked on the test bench.

2. The assembly according to claim 1 , wherein said input pinion is a centre wheel pinion.

3. The assembly according to claim 1 , wherein said time-setting module includes a bearing surface bearing on said bearing surface of said main plate.

4. The assembly according to claim 1 , wherein said time-setting module includes a stem connected to a crown, to allow a user to adjust a time-setting of a mechanical movement, and includes a first output wheel set formed by a motion work control train.

5. The assembly according to claim 4 , wherein said time-setting module also performs a function of a manual winding module, and includes a second output wheel set formed by a winding control train cooperating with said ratchet, and wherein pulling on said stem by the user determines a selection of a chosen function.

6. The assembly according to claim 1 , wherein said time-setting module is locked onto said main plate by two rings driven onto shouldered studs comprised in said main plate.

7. The assembly according to claim 1 , wherein said gear train module and said time-setting module are arranged only on a first side of said main plate.

8. The assembly according to claim 7 , wherein all of the components thereof are arranged on said first side of said main plate.

9. The assembly according to claim 1 , wherein the second mechanical timepiece sub-assembly includes, irremovably secured to said first mechanical sub-assembly, at least one motor module, which is the second functional module, and is a complete barrel including at least one barrel, whose input wheel set is formed by a barrel arbor, which cooperates with a ratchet comprised in said second mechanical sub-assembly and which is arranged to be pivoted, either by a winding and time-setting mechanism, or by a self-winding mechanism or by a self-winding module, to wind at least one spring in at least one drum forming the output wheel set of said motor module and which drives said input pinion of said gear train module.

10. The assembly according to claim 9 , wherein, around a centring bore receiving said barrel arbor, said main plate includes counter-bores arranged to prevent a collision with said motor module during the winding thereof.

11. The assembly according to claim 9 , wherein said gear train module and said time-setting module are arranged on a first side of said main plate, and wherein said barrel arbor includes a shouldered head in the manner of a nail mounted on a second side of said main plate opposite said first side, in a bore comprised in said main plate.

12. The assembly according to claim 9 , the assembly further comprising a third mechanical timepiece sub-assembly, wherein the third mechanical timepiece sub-assembly includes, irremovably secured to said second mechanical sub-assembly, a frame-mounted self-winding device module, which is irreversibly adjusted by the irremovable securing of adjustment and/or assembly components, and which includes a barrel drive wheel guided in a guide member of said first mechanical sub-assembly in proximity to said drum, and in a jewel comprised in a flange centred on two studs comprised in said frame-mounted self-winding device module.

13. The assembly according to claim 12 , wherein said time-setting module carries a support pillar for a bridge, which includes bores cooperating with the ends of shouldered studs driven into said main plate, and also includes a bore to guide said barrel arbor, and a jewel provided to guide the arbor of a small seconds wheel.

14. The assembly according to claim 13 , wherein said bridge is directly welded to said main plate sandwiching the components that are already mounted, or is welded on the ends of said studs.

15. The assembly according to claim 12 , wherein the third mechanical timepiece sub-assembly includes a retaining mechanism or a clip to retain said frame-mounted self-winding device module in the event of a shock and to hold said barrel drive wheel.

16. The assembly according to claim 12 , wherein the third mechanical timepiece sub-assembly includes at least one sliding gear return spring mounted bearing on bosses comprised in a bridge, said spring holds a sliding gear guided in an oblong hole arranged in said bridge and on the other hand, in an oblong hole in said flange.

17. The assembly according to claim 12 , wherein the said main plate includes, in proximity to a bore arranged to receive an arbor of a small seconds wheel, a guide member of an intermediate barrel drive wheel also guided in a jewel of said flange.

18. The assembly according to claim 12 , wherein the third mechanical timepiece sub-assembly includes at least one sliding gear return spring mounted bearing on bosses comprised in a bridge, said at least one spring holds a sliding gear guided in an oblong hole arranged in said bridge and on the other hand, in an oblong hole in said flange, and wherein the said main plate includes, in proximity to a bore arranged to receive an arbor of a small seconds wheel, a guide member of an intermediate barrel drive wheel also guided in a jewel of said flange.

19. The assembly according to claim 12 , the assembly further comprising a fourth mechanical timepiece sub-assembly, wherein the fourth mechanical timepiece sub-assembly includes, irremovably fixed to said third mechanical sub-assembly, a motion work train including a centre seconds arbor, a small seconds arbor and a pinion mounted on the side of said main plate opposite to the side where said gear train module is assembled, an intermediate wheel carried by a stud driven into said main plate, a

Assignees

• Eta Sa Mft Horlogere Suisse
• Eta Sa Mft Horlogère Suisse

Inventors

• Peters Jean-Bernard
• Kaelin Laurent
• Villar Ivan
• Balmer Raphael

Classifications

• G04B19/24

  Clocks or watches with date {or week-day} indicators {, i.e. calendar clocks or watches}; Clockwork calendars · CPC title

• G04B29/00

  Frameworks · CPC title

• G04B27/00

  Mechanical devices for setting the time indicating means · CPC title

• G04B33/00 Primary

  Calibers {(disposition of components of the automatic winding mechanism in relation to the clockwork G04B5/18)} · CPC title

• G04B29/04

  Connecting or supporting parts · CPC title