WO2006092685A3 - Clock movement with dead second indicator - Google Patents

Clock movement with dead second indicator Download PDF

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Publication number
WO2006092685A3
WO2006092685A3 PCT/IB2006/000300 IB2006000300W WO2006092685A3 WO 2006092685 A3 WO2006092685 A3 WO 2006092685A3 IB 2006000300 W IB2006000300 W IB 2006000300W WO 2006092685 A3 WO2006092685 A3 WO 2006092685A3
Authority
WO
WIPO (PCT)
Prior art keywords
dead
indicator
wheel
jumps
jumper
Prior art date
Application number
PCT/IB2006/000300
Other languages
French (fr)
Other versions
WO2006092685A2 (en
Inventor
Rachel Torresani
Jean-Claude Meylan
Original Assignee
Richemont Int Sa
Rachel Torresani
Jean-Claude Meylan
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Richemont Int Sa, Rachel Torresani, Jean-Claude Meylan filed Critical Richemont Int Sa
Publication of WO2006092685A2 publication Critical patent/WO2006092685A2/en
Publication of WO2006092685A3 publication Critical patent/WO2006092685A3/en

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B13/00—Gearwork
    • G04B13/002—Gearwork where rotation in one direction is changed into a stepping movement
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/02—Back-gearing arrangements between gear train and hands

Abstract

The invention concerns a clock movement with dead second indicator (20) moving one step per second driving, from an escapement wheel (12) performing n jumps per second, by a second pinion (16), and intermediate setting wheel (17) and a dead second pinion (18) integral with a dead second wheel (19) and with the dead second indicator (20). The teeth (25) of the dead second wheel (18) co-operates with an asymmetric jumper (29) configured such that upon the first of the n jumps of the escapement wheel, the asymmetric jumper moves from an idle position past the next tooth of the gear teeth (25) and is immediately at the next idle position under the effect of a spring (28) of the jumper by a sufficient angular play of the gears. During the next n-1 jumps of the escapement wheel (12), the gear play is gradually overtaken and the dead second indicator (20) remains stationary. The invention provides a high-precision dead second indicator of simple design and shock-proof.
PCT/IB2006/000300 2005-03-01 2006-02-07 Clock movement with dead second indicator WO2006092685A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00356/2005 2005-03-01
CH3562005A CH698440B1 (en) 2005-03-01 2005-03-01 clockwork with a dead second indicator.

Publications (2)

Publication Number Publication Date
WO2006092685A2 WO2006092685A2 (en) 2006-09-08
WO2006092685A3 true WO2006092685A3 (en) 2007-08-30

Family

ID=36941537

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/000300 WO2006092685A2 (en) 2005-03-01 2006-02-07 Clock movement with dead second indicator

Country Status (2)

Country Link
CH (1) CH698440B1 (en)
WO (1) WO2006092685A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2098921B1 (en) * 2008-03-07 2012-02-01 Paul Gerber Mechanism for displaying seconds

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH107025A (en) * 1923-06-09 1924-10-01 Onesime Stauffer Henri Dead second mechanism.
GB667031A (en) * 1948-06-09 1952-02-20 Ebauches Sa Improvements in and relating to a mechanism of independent seconds for movements in timepieces
US2591876A (en) * 1949-07-01 1952-04-08 Ebauches Sa Dead-second watch mechanism
US3340687A (en) * 1965-08-13 1967-09-12 Novikov Mikhail Fedorovich Device for intermittent motion of second hand

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH107025A (en) * 1923-06-09 1924-10-01 Onesime Stauffer Henri Dead second mechanism.
GB667031A (en) * 1948-06-09 1952-02-20 Ebauches Sa Improvements in and relating to a mechanism of independent seconds for movements in timepieces
US2591876A (en) * 1949-07-01 1952-04-08 Ebauches Sa Dead-second watch mechanism
US3340687A (en) * 1965-08-13 1967-09-12 Novikov Mikhail Fedorovich Device for intermittent motion of second hand

Also Published As

Publication number Publication date
CH698440B1 (en) 2009-08-14
WO2006092685A2 (en) 2006-09-08

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