EP 3406161 A1 20181128 - CARTRIDGE CORE
Title (en)
CARTRIDGE CORE
Title (de)
MECHANISMUS
Title (fr)
NOYAU DE CARTOUCHE
Publication
Application
Priority
- CN 201710230472 A 20170410
- CN 2017113353 W 20171128
Abstract (en)
Disclosed is a mechanism. The mechanism includes an inner-body and a spiral; limiting steps for limiting an axial movement of the spiral are provided on an outer wall of the inner-body; the spiral is provided with an annular elastic telescopic portion; and the elastic telescopic portion is provided with a plurality of grooved holes arranged along a circumferential direction of the elastic telescopic portion, thereby forming an oblique elastic deformation strip between adjacent grooved holes. According to the mechanism, by providing holes on a sidewall of the spiral to form the elastic telescopic portion, the mould opening is relatively easy and the manufacturing cost is low; the elastic deformation strip is provided obliquely, so to achieve the same telescopic amount of the spiral, the elastic deformation strip is required to have a relatively small deformation compared with the existing structure. Therefore, an irreversible deformation is not easily occurred.
IPC 8 full level
A45D 40/00 (2006.01)
CPC (source: CN EP)
A45D 40/00 (2013.01 - CN); A45D 40/04 (2013.01 - CN); A45D 40/06 (2013.01 - EP)
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3406161 A1 20181128; EP 3406161 A4 20190828; EP 3406161 B1 20210519; CN 107232735 A 20171010; CN 107232735 B 20230929; WO 2018188348 A1 20181018
DOCDB simple family (application)
EP 17859360 A 20171128; CN 201710230472 A 20170410; CN 2017113353 W 20171128