EP 2326995 B1 20130619 - GEAR SYSTEM FOR A TIMEPIECE
Title (en)
GEAR SYSTEM FOR A TIMEPIECE
Title (de)
GETRIEBESYSTEM FÜR UHRWERK
Title (fr)
SYSTÈME D'ENGRENAGE POUR UNE PIÈCE D'HORLOGERIE
Publication
Application
Priority
- EP 2009059477 W 20090723
- EP 08162475 A 20080815
- EP 09806405 A 20090723
Abstract (en)
[origin: EP2154582A1] The system (1) has a drive pinion (5) and a sprocket (7) mounted coaxially with respect to a pivoting axle (3). An attachment device (21) is placed between the pinion and the sprocket to avoid relative displacement of the sprocket with respect to the pinion. The device includes a footprint (23) having shape corresponding to a section of the pinion. The axle and the pinion are made of metallic material, where the system is made of silicon-metal, and the sprocket is made of microusable material selected from a group consisting of crystalline silicon, crystalline alumina and crystalline silica. An independent claim is also included for a method for fabrication of a watch element i.e. sprocket, made up of microusable material.
IPC 8 full level
G04B 13/02 (2006.01); B81C 1/00 (2006.01); G04D 3/00 (2006.01)
CPC (source: EP KR US)
G04B 13/02 (2013.01 - EP US); G04B 13/026 (2024.01 - KR); G04D 3/0069 (2013.01 - EP KR US)
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
EP 2154582 A1 20100217; CN 102124415 A 20110713; CN 102124415 B 20121219; EP 2326995 A1 20110601; EP 2326995 B1 20130619; HK 1160233 A1 20120810; JP 2012500386 A 20120105; JP 5395174 B2 20140122; KR 20110030692 A 20110323; RU 2011109457 A 20120920; RU 2498383 C2 20131110; TW 201011481 A 20100316; TW I486729 B 20150601; US 2011141860 A1 20110616; US 9310770 B2 20160412; WO 2010018051 A1 20100218
DOCDB simple family (application)
EP 08162475 A 20080815; CN 200980131641 A 20090723; EP 09806405 A 20090723; EP 2009059477 W 20090723; HK 12100380 A 20120112; JP 2011522460 A 20090723; KR 20117003449 A 20090723; RU 2011109457 A 20090723; TW 98125412 A 20090728; US 200913059216 A 20090723