EP 1760549 A1 20070307 - Gong for a striking mechanism in a timepiece
Title (en)
Gong for a striking mechanism in a timepiece
Title (de)
Tonfeder für ein Schlagwerk einer Uhr
Title (fr)
Timbre pour mécanisme de sonnerie de pièce d'horlogerie
Publication
Application
Priority
EP 05405507 A 20050901
Abstract (en)
The gong (1) has an end comprising a fixation element (1a) for fixing the end to a frame of a timepiece, where the gong is in the form of a bended blade having 0.2 millimeter thickness. A free part of the blade is conformed so that its natural vibration frequency is located in field of sound consecutive to a percussion exerted on a section of the free part. The fixation element and the blade constitute a single piece with uniform thickness.
IPC 8 full level
G04B 21/12 (2006.01)
CPC (source: EP)
G04B 21/12 (2013.01)
Citation (search report)
- [XA] EP 0451335 A1 19911016 - INT WATCH CO IWC [CH]
- [A] US 2004090869 A1 20040513 - SCHMIEDCHEN CHRISTIAN [DE]
- [A] DE 64094 C
- [A] DE 92235 C
- [A] BERNER, G.-A: "Dictionnaire professionnel illustré de l'horlogerie", 1961, CHAMBRE SUISSE DE L'HORLOGERIE, CHAUX DE FONDS, CH, XP002386681
Designated contracting state (EPC)
CH DE FR LI
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
DOCDB simple family (application)
EP 05405507 A 20050901