EP 3026504 B1 20170927 - Annual or perpetual calendar mechanism and timepiece comprising the use thereof
Title (en)
Annual or perpetual calendar mechanism and timepiece comprising the use thereof
Title (de)
Uhrmechanismus eines Jahres- oder ewigen Kalenders, und Uhr, die eine solche Anwendung umfasst
Title (fr)
Mécanisme de quantième annuel ou perpétuel et pièce d horlogerie en comportant application
Publication
Application
Priority
EP 14195258 A 20141127
Abstract (en)
[origin: JP2016102793A] PROBLEM TO BE SOLVED: To provide an annual or permanent calendar mechanism capable of being locally or wholly reduced in at least one portion of a bulk.SOLUTION: In an annual or permanent calendar mechanism, a day gear unit 23 includes a V-shaped notch 63 and a day gear 23. For each action of a lever 21, a first claw finger 50 brings one step action to one of teeth 61, 62, 64 of the day gear 23. When the lever 21 is operated at the end of a month having days less than 31 days, a second claw finger 51 brings actions of the day gear unit 23 for the total number of gear tooth steps to the V-shaped notch 63. The V-shaped notch 63 is located between the two consecutive teeth 61, 64 of the teeth 61, 62, 64 of the day gear 23. The day gear 23 has a periphery 60 forming an outline of the gear and the V-shaped notch 63.SELECTED DRAWING: Figure 3
IPC 8 full level
G04B 19/253 (2006.01); G04B 19/24 (2006.01)
CPC (source: CN EP US)
G04B 19/241 (2013.01 - US); G04B 19/25346 (2013.01 - US); G04B 19/2536 (2013.01 - CN EP US); G04B 19/2538 (2013.01 - US); G04B 19/268 (2013.01 - CN)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3026504 A1 20160601; EP 3026504 B1 20170927; CN 105652634 A 20160608; CN 105652634 B 20190604; HK 1220517 A1 20170505; JP 2016102793 A 20160602; JP 6513560 B2 20190515; US 2016154380 A1 20160602; US 9703262 B2 20170711
DOCDB simple family (application)
EP 14195258 A 20141127; CN 201510849591 A 20151127; HK 16108509 A 20160719; JP 2015230630 A 20151126; US 201514948540 A 20151123