EP 0587031 B1 19970514 - Timepiece with driving means consisting of a piezoelectric motor
Title (en)
Timepiece with driving means consisting of a piezoelectric motor
Title (de)
Uhr mit aus einem piezoelektrischen Motor bestehenden Antriebsmittel
Title (fr)
Pièce d'horlogerie pourvue de moyens d'entraînement formés par un moteur piézo-électrique
Publication
Application
Priority
CH 284592 A 19920909
Abstract (en)
[origin: EP0587031A1] The invention relates to a timepiece This timepiece which comprises display means (2), and drive means (M1, M2) which are intended to operate the display means (2), is characterised in that the drive means (M1, M2) include a piezoelectric motor which engages directly with the display means (2). The invention applies, for example, to the driving of a calendar display. <IMAGE>
IPC 1-7
IPC 8 full level
G04C 3/12 (2006.01)
CPC (source: EP US)
G04C 3/12 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0587031 A1 19940316; EP 0587031 B1 19970514; CH 685660 B5 19960315; CH 685660G A3 19950915; CN 1042978 C 19990414; CN 1083941 A 19940316; DE 69310643 D1 19970619; DE 69310643 T2 19971218; JP H06194463 A 19940715; US 5357489 A 19941018
DOCDB simple family (application)
EP 93113954 A 19930901; CH 284592 A 19920909; CN 93117379 A 19930908; DE 69310643 T 19930901; JP 24623893 A 19930907; US 11780893 A 19930908