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1. (WO2017067955) SILICON HAIRSPRING FOR MECHANICAL TIMEPIECE MOVEMENT
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Pub. No.: WO/2017/067955 International Application No.: PCT/EP2016/075028
Publication Date: 27.04.2017 International Filing Date: 19.10.2016
Chapter 2 Demand Filed: 22.08.2017
IPC:
G04B 17/06 (2006.01) ,G04B 17/20 (2006.01) ,F16F 1/04 (2006.01) ,F16F 1/10 (2006.01)
G PHYSICS
04
HOROLOGY
B
MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME-PIECES USING THE POSITION OF THE SUN, MOON, OR STARS
17
Mechanisms for stabilising frequency
04
Oscillators acting by spring tension
06
Oscillators with hairsprings, e.g. balance
G PHYSICS
04
HOROLOGY
B
MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME-PIECES USING THE POSITION OF THE SUN, MOON, OR STARS
17
Mechanisms for stabilising frequency
20
Compensation of mechanisms for stabilizing frequency
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F
SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
1
Springs
02
made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
04
Wound springs
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F
SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
1
Springs
02
made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
04
Wound springs
10
Spiral springs with turns lying substantially in plane surfaces
Applicants:
ETA SA MANUFACTURE HORLOGÈRE SUISSE [CH/CH]; Schild-Rust-Strasse 17 2540 Grenchen, CH
Inventors:
CHRISTAN, Julien; CH
CONUS, Thierry; CH
Agent:
ICB INGÉNIEURS CONSEILS EN BREVETS SA; attn. SUPPER, Marc Fbg de l'Hôpital 3 2001 Neuchâtel, CH
Priority Data:
15191113.822.10.2015EP
15191115.322.10.2015EP
16157401.725.02.2016EP
16158809.004.03.2016EP
Title (EN) SILICON HAIRSPRING FOR MECHANICAL TIMEPIECE MOVEMENT
(FR) SPIRAL EN SILICIUM POUR MOUVEMENT D'HORLOGERIE MÉCANIQUE
Abstract:
(EN) A silicon hairspring for a mechanical timepiece movement, said hairspring (4) comprising a given number of non-contiguous and equidistant turns, the hairspring (4) contracting and expanding concentrically around an equilibrium position, characterised in that the distance (d) between two consecutive turns does not exceed 20 micrometres when the hairspring (4) is contracted to a maximum.
(FR) Spiral en silicium pour un mouvement d'horlogerie mécanique, ce spiral (4) comprenant un nombre donné de spires non jointives et équidistantes, le spiral (4) se contractant et se développant de manière concentrique autour d'une position d'équilibre, caractérisé en ce que la distance (d) entre deux spires consécutives n'excède pas 20 micromètres lorsque le spiral (4) est contracté au maximum.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)