System for adjusting the position of a first toothed wheel set relative to a support on which the first toothed wheel set is pivotably mounted and timepiece comprising such a system

Patent metadata

Field	Value
Publication number	US-11550264-B2
Application number	US-201916687831-A
Country	US
Kind code	B2
Filing date	Nov 19, 2019
Priority date	Dec 10, 2018
Publication date	Jan 10, 2023
Grant date	Jan 10, 2023

Abstract

A system for adjusting the angular position of a first toothed wheel set relative to a support on which the first toothed wheel set is mounted such that it can pivot. The adjusting system includes an adjusting member allowing an action to be applied to an angular position of the first toothed wheel set so as to adjust the angular position of the first toothed wheel set relative to the support. A timepiece can include such an adjusting system.

First claim

The invention claimed is:

1. A large date calendar display mechanism driven via a kinematic chain by a horological movement of a timepiece equipped with said large date calendar display mechanism, said large date calendar display mechanism comprising:
a first date indicator on which the indications of the units component of the date from “0” to “9” are placed, and a second date indicator on which the indications of the tens component of the date from “0” to “3” are placed, whereby all of the date indications from “01” to “31” can be obtained by combining the indications of the units component “0” to “9” of the date, borne by the first date indicator, with the indications of the tens component “0” to “3” of the date, borne by the second date indicator, the first date indicator remaining still during a 24-hour period separating the passage from the last day of a month having 31 days to the first day of the following month, the kinematic chain comprising a wheel that is continuously engaged with the horological movement and which has a perimeter provided with a toothing via which the wheel meshes with a pinion which itself contributes to driving the first indicator of the units component of the date, the wheel being, at one point along the perimeter thereof, devoid of teeth such that, during the 24-hour period separating the passage from the last day of a month having 31 days to the end of the first day of the following month, the wheel does not mesh with the pinion which, similarly to the first date indicator, thus remains still, the large date calendar display mechanism further comprising a units drive pinion engaged with an intermediate wheel, the units drive pinion being frictionally mounted on a units drive wheel with which it forms a units drive wheel set, an adjusting member, the angular position whereof is adjustable and which is engaged with the units drive pinion, being borne by the units drive wheel.

Assignees

• Montres Breguet Sa

Inventors

• Zaugg Alain
• Matteazzi Daniel

Classifications

• G04B19/24 Primary

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

• G04B19/25353 Primary

  driven or released stepwise by the clockwork movement · CPC title

• G04B35/00

  Adjusting the gear train, e.g. the backlash of the arbors, depth of meshing of the gears {(adjusting the escapement G04B15/12)} · CPC title

• G04B19/247

  disc-shaped {(G04B19/24306 takes precedence; for electrically driven timepieces G04C17/0058)} · CPC title

• G04B13/02

  Wheels; Pinions; Spindles; Pivots (bearings G04B31/00 {; chain wheels, spindles for chain wheels, also chains and driving weights G04B1/08}) · CPC title