EP 2740573 B1 20151202 - Method of manufacturing outer cutter of rotary electric shaver
Title (en)
Method of manufacturing outer cutter of rotary electric shaver
Title (de)
Verfahren zur Herstellung der äußeren Klinge eines elektrischen Rotationsrasierers
Title (fr)
Procédé de fabrication de lame extérieure de rasoir électrique rotatif
Publication
Application
Priority
JP 2012267414 A 20121206
Abstract (en)
[origin: EP2740573A1] A method of manufacturing an outer cutter 10A of a rotary electric shaver 1 that includes the outer cutter 10A and an inner cutter 12A which is slidingly in contact with a bottom surface of the outer cutter 10A and rotates, in which a plurality of the circular shaving surfaces 16A, 18A are integrally formed in the outer cutter 10A in a concentric manner, and round hole-shaped hair introduction openings 30 are formed in at least one of the circular shaving surfaces 18A includes (a) a step of grinding or polishing a predetermined position where the round hole-shaped hair introduction openings 30 are formed in the circular shaving surface 18A to obtain a thickness size smaller than an inner diameter size of the round hole 30; and (b) a step of forming the round hole-shaped hair introduction openings 30 in the position where the grinding or the polishing is performed by pressing, after the step (a).
IPC 8 full level
B26B 19/14 (2006.01)
CPC (source: CN EP US)
B21D 53/64 (2013.01 - CN US); B26B 19/143 (2013.01 - CN 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 2740573 A1 20140611; EP 2740573 B1 20151202; CN 103846623 A 20140611; CN 103846623 B 20170606; JP 2014113204 A 20140626; JP 6005495 B2 20161012; US 2014157957 A1 20140612
DOCDB simple family (application)
EP 13195843 A 20131205; CN 201310655019 A 20131206; JP 2012267414 A 20121206; US 201314081208 A 20131115