EP 2686134 B1 20141022 - POLISHING SYSTEM FOR A PIECE OF A WATCHCASE
Title (en)
POLISHING SYSTEM FOR A PIECE OF A WATCHCASE
Title (de)
POLIERSYSTEM FÜR EIN TEIL EINES UHRENGEHÄUSES
Title (fr)
SYSTÈME DE POLISSAGE D'UNE PIÈCE D'HABILLAGE POUR UNE PIÈCE D'HORLOGERIE
Publication
Application
Priority
- EP 11158458 A 20110316
- EP 2012052743 W 20120217
- EP 12704793 A 20120217
Abstract (en)
[origin: EP2500135A1] The system (21) has a fixing device (25) including a support (31) for holding a crystalline alumina cover part. A grinding device (27) comprises abrasive units (33) e.g. grindstone, rotatably mounted around a first rotation axis (A3), and polishes the part along a first curvature (C1). The fixing device comprises moving units for moving the support such that the support causes reciprocating movement (B) along a second rotation axis (A4). A contact surface of the abrasive units is curved so as to polish the part along a second curvature (C2) in addition to the first curvature. The cover part is made of sapphire, corundum or ruby materials.
IPC 8 full level
B24B 13/04 (2006.01); B24B 29/00 (2006.01); B24B 47/02 (2006.01); B24B 47/04 (2006.01); G04D 3/06 (2006.01)
CPC (source: EP US)
B24B 13/02 (2013.01 - EP US); B24B 13/04 (2013.01 - EP US); B24B 29/00 (2013.01 - EP US); B24B 47/02 (2013.01 - EP US); B24B 47/04 (2013.01 - EP US); G04D 3/06 (2013.01 - EP US)
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 2500135 A1 20120919; CN 103442847 A 20131211; CN 103442847 B 20170208; EP 2686134 A1 20140122; EP 2686134 B1 20141022; JP 2014512975 A 20140529; JP 5959544 B2 20160802; RU 2013146017 A 20150427; RU 2590515 C2 20160710; US 2014004777 A1 20140102; US 9914195 B2 20180313; WO 2012123215 A1 20120920
DOCDB simple family (application)
EP 11158458 A 20110316; CN 201280013601 A 20120217; EP 12704793 A 20120217; EP 2012052743 W 20120217; JP 2013558350 A 20120217; RU 2013146017 A 20120217; US 201214004812 A 20120217