Global Patent Index - EP 0970407 A1

EP 0970407 A1 20000112 - TIME-SETTING MECHANISM FOR CLOCK MOVEMENT WITH PERPETUAL JULIAN DATE

Title (en)

TIME-SETTING MECHANISM FOR CLOCK MOVEMENT WITH PERPETUAL JULIAN DATE

Title (de)

ZEIGERSTELLUNGSMECHANISMUS FÜR EINE EWIGE KALENDERUHR

Title (fr)

MECANISME DE MISE A L'HEURE D'UN MOUVEMENT D'HORLOGERIE A QUANTIEME PERPETUEL

Publication

EP 0970407 A1 (FR)

Application

EP 98907797 A

Priority

  • CH 9800110 W
  • CH 74497 A

Abstract (en)

[origin: WO9844394A1] The invention concerns a time-setting mechanism for a clock movement (1) with perpetual Julian date comprising a device for driving (8) a date indicator (2) including driving means (10) for moving forward said indicator by one jump every twenty-four hours. The movement (1) further comprises an adjusting device for automatically moving said indicator (2) by a number of steps taking into account months with 28, 29 or 30 days, said device comprising a rotary cam (26) driven by at least one step every twenty-four hours, said cam having a profile (28) for steering a sensor (30) bringing about: the oscillating movement of a moving mechanism (32) provided with a pawl system (34) for moving forward the date indicator (2) by the required additional number of adjusting steps; and for moving forward said cam (26) by a number of steps equal to the number of said indicator (2) adjusting steps so as to make it move one complete cycle per year. The mechanism is characterised in that it comprises means (156) for disengaging the sensor (30) to release the cam (26) profile (28) and means (164) for coupling the indicator (2) with said cam (26), said coupling means (164) being steered by said disengaging means (156) which are controlled by an operating lever stem (150).

IPC 1-7

G04B 19/25; G04B 19/24

IPC 8 full level

G04B 19/25 (2006.01); G04B 19/253 (2006.01)

CPC (source: EP)

G04B 19/25 (2013.01)

Citation (search report)

See references of WO 9844394A1

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 9844394 A1 19981008; CH 691088 A5 20010412; EP 0970407 A1 20000112; JP 2001516455 A 20010925; US 6295250 B1 20010925

DOCDB simple family (application)

CH 9800110 W 19980320; CH 74497 A 19970327; EP 98907797 A 19980320; JP 54102498 A 19980320; US 38171799 A 19991227