EP 1335253 A1 20030813 - Annual calendar mechanism for clockwork-movement
Title (en)
Annual calendar mechanism for clockwork-movement
Title (de)
Jährlicher Kalendermechanismus für Uhrwerk
Title (fr)
Mécanisme de quantième annuel pour mouvement d'horlogerie
Publication
Application
Priority
EP 02405094 A 20020211
Abstract (en)
The annual date mechanism for a clock movement includes a correction cam (1a) which is linked to the indicator. This includes a portion comprising a correction balance, which is designed to advance the date by one step from 31 to 1 at the end of the month. The correction balance is spring biased. The annual date display mechanism includes a correction cam (1a) in mechanical linkage with a mobile date indicator (1). The correction cam is annular in shape, and is concentric with the mobile date indicator. A correction balance (8) is in contact on the one hand with the correction cam (1a), and on the other hand with an annual cam (18). A spring (9) presses the correction balance (8) against the cams (1a, 18). The correction cam (1a) comprises a portion (1a) to arm the spring (9), followed by a portion (1aasterisk) of a size to cause the displacement of the date wheel indicator (1) by one step between the 31 and the 1 under the pressure of the spring (9).
Abstract (fr)
Ce mécanisme de quantième annuel comprend une came de correction (1a) en liaison cinématique avec un mobile indicateur de quantièmes (1), une bascule de correction (8) en prise d'une part avec ladite came de correction (1a) et d'autre part, avec une came annuelle (18). Un ressort (9) presse la bascule de correction (8) contre les cames (1a, 18). La came de correction (1a) comporte une portion (1a') pour armer ledit ressort (9) suivie d'une portion (1a*) dimensionnée pour provoquer le déplacement d'un pas dudit mobile de quantième (1) entre le "31" et le "1" sous la pression dudit ressort (9). <IMAGE>
IPC 1-7
IPC 8 full level
G04B 19/253 (2006.01)
CPC (source: EP US)
G04B 19/2536 (2013.01 - EP US)
Citation (search report)
- [A] DE 205445 C
- [A] US 3673789 A 19720704 - TSUZUKI AKIRA, et al
Designated contracting state (EPC)
CH DE FR GB LI
DOCDB simple family (publication)
EP 1335253 A1 20030813; EP 1335253 B1 20090422; DE 02405094 T1 20040519; DE 60232054 D1 20090604; JP 2003240875 A 20030827; JP 4246508 B2 20090402; US 2003151981 A1 20030814; US 6744696 B2 20040601
DOCDB simple family (application)
EP 02405094 A 20020211; DE 02405094 T 20020211; DE 60232054 T 20020211; JP 2003014699 A 20030123; US 36013203 A 20030206