# US 2019/0171167 A1 · Dynamic chronometric testing

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- Number: US 2019/0171167 A1
- Document ID: US20190171167A1
- Status: Published application
- Kind: A1
- Application number: 16/195,883
- Filed: 2018-11-20
- Published: 2019-06-06
- Earliest claimed: 2017-12-01
- Assignees: Montres Breguet S.A.
- Applicants: Montres Breguet S.A.
- Inventors: Marc Stranczl; Rene Piguet
- Web page: https://patentgrep.com/patent/US20190171167A1

## CPC

- G04D 7/1264: {for complete clockworks}
- G04D 1/06: Supporting devices for clockworks or parts of time-pieces {(for automatic assembly G04D1/0021)}
- G04D 7/1214: {for complete clockworks}
- G04D: APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES

## Abstract

A dynamic chronometric testing of a movement or of a watch, control device fine controlling a predefined or random cycle of movements via standardised chronometric testing positions, the rate parameters are also measured in dynamic positions where the acceleration and velocity are different to zero and which correspond to additional dynamic chronometry criteria, defined to qualify the rate during a continuous movement applied to the movement or respectively to this watch.

## Claims

### Claim at position 1

1-14 (canceled)

### Claim 15

A device for the dynamic chronometric testing of a watch movement or watch, said device comprising at least one receptacle arranged to hold, up to a given acceleration threshold, at least one movement or a watch, and including handling means arranged to handle each said receptacle spatially, arranged to apply to each said receptacle at least one predefined or random cycle in respect of the path thereof and the dynamic evolution thereof along this path under the fine control of control means including a clock or connected to an external time base, said cycle including the passage via standardised static chronometric testing positions, wherein said handling means are arranged for the continuous spatial handling of each said receptacle, and wherein said device includes rate sensor means for the continuous and dynamic recording of the rate parameters of each movement placed in said receptacle during a movement or/and an acceleration, correlated with environment sensor means for the continuous recording, relative to said recording of the rate parameters, of the physical conditions of the environment wherein said chronometric testing takes place, and said device includes fine control means and analysis means interfaced with said control means, said rate sensor means, and said environment sensor means, and arranged to evaluate the behaviour upon wearing of each said movement or respectively of each said watch, to issue a testing certificate in the case where all the values measured comply with predefined tolerances, or to resume an iterative rate setting correction and testing process otherwise, for both said standardised static positions and dynamic positions where the acceleration and velocity are different to zero and which correspond to additional dynamic chronometry criteria, defined in order to qualify the rate during continuous motion applied to said movement or respectively to said watch, wherein said fine control means are arranged to control said multi-axis handling means so as to simulate the movements of the arm or/and forearm or/and hand of a right-handed or left-handed user, with angular amplitudes limited to the natural angular amplitudes at the level respectively of the shoulder, elbow, wrist, and further comprising said fine control means include means for generating random numbers arranged to trigger the switching, at random times, of said predefined cycle, to apply to said movement or respectively to the watch a path according to a random velocity or/and according to a random acceleration or/and according to random modulus or/and direction or/and random direction movement vectors, along travels limited to a predefined envelope volume.

### Claim 16 (depends on 15)

The device according to claim 15, wherein said handling means are arranged to handle each said receptacle spatially according to at least two degrees of freedom simultaneously.

### Claim 17 (depends on 15)

The device according to claim 15, wherein said device includes rate setting means, and wherein said fine control means are arranged to send control signals to actuators included in said rate setting means, to correct the rate of adjustment means included in a resonator of said movement or respectively of said watch, before proceeding with at least one new said predefined or random test cycle.

### Claim 18 (depends on 15)

The device according to claim 15, wherein said rate sensor means, and said environment sensor means are arranged to subject said movement or respectively said watch, to additional predefined or random validation tests.

### Claim 19 (depends on 15)

The device according to claim 15, wherein said fine control means are arranged to control said multi-axis handling means so as to generate a resultant movement of said movement or respectively of said watch, along a set surface or a sphere or an ellipsoid or a hyperboloid.

### Claim 20 (depends on 15)

The device according to claim 15, wherein said means for generating random numbers are arranged to apply to said fine control means a random duration of said switching.

### Claim 21 (depends on 20)

The device according to claim 20, wherein said fine control means are arranged to resume said predefined or random cycle according to the position reached upon switching, from the end of said switching.

### Claim 22 (depends on 15)

The device according to claim 15, wherein said multi-axis handling means comprise at least one multi-axis robot including, between a shoulder joint and an elbow joint restricted to the same angular travels as the human arm, an upper robot arm of similar dimensions to those of a human arm, and at a distal part beyond said elbow, a lower arm of similar dimensions to those of a human forearm and wearing, in the vicinity of the distal end thereof, said movement or respectively said watch.

### Claim 23 (depends on 22)

The device according to claim 22, wherein said multi-axis robot comprises three axes at the level of said shoulder joint, and three axes at the level of said elbow joint.

### Claim 24 (depends on 15)

The device according to claim 15, wherein said fine control means comprise storage means arranged to store parameters in respect of tolerances, angular clearance thresholds, velocity thresholds, acceleration thresholds, or/and wherein said storage means are arranged to store a kinematic sequence recorded according to the movements of a typical user, or/and a programmed kinematic sequence.

### Claim 25 (depends on 15)

The device according to claim 15, wherein said receptacle comprises at least one inertial sensor including at least one accelerometer arranged to measure acceleration applied to said movement or respectively to said watch, and distinguish static positions where the acceleration and the velocity are zero and among which are the standardised chronometric testing positions, and dynamic positions where the acceleration and the velocity are different to zero and which correspond to additional dynamic chronometry criteria.

### Claim 26

A method for the dynamic chronometric testing of a watch movement, or of a watch, wherein movements are applied to said movement, or respectively to said watch, including at least one predefined or random cycle in respect of the path thereof and the dynamic evolution thereof along this path under the fine control of control means including a clock or connected to an external time base, said cycle including the passage via standardised chronometric testing positions, in that the rate parameters of said movement or respectively of said watch are measured in said standardised positions and in further programmed or/and random intermediate positions, and wherein the continuous chronometric testing of said movement or respectively of said watch is carried out, in that the rate parameters of said movement or respectively of said watch are recorded continuously and dynamically, that said rate parameters are compared with set-point values, in that a testing certificate is issued if all the values measured comply with predefined tolerances, or in that an iterative rate setting correction and testing process is resumed otherwise, and in that the acceleration applied to said movement or respectively to said watch is measured, to distinguish static positions where the acceleration and the velocity are zero and among which are said standardised chronometric testing positions, and dynamic positions where the acceleration and the velocity are different to zero and which correspond to additional dynamic chronometry criteria, defined to qualify the rate during a continuous movement applied to said movement or respectively to said watch, and wherein random movements of said movement or respectively of said watch are generated in order to apply thereto said dynamic positions wherein additional dynamic chronometry testing is performed.

### Claim 27 (depends on 26)

The method for the dynamic chronometric testing of a watch movement, or of a watch, according to claim 26, wherein, during at least a part of the testing cycle, spatial movements are applied to said movement or respectively to said watch, according to at least two degrees of freedom simultaneously.

### Claim 28 (depends on 26)

The method for the dynamic chronometric testing of a watch movement, or of a watch, according to claim 26, wherein the handling of said movement or respectively of said watch is programmed by learning on the basis of movement recorded on a test user, for a daily duration.
