EP 0889784 B1 20011107 - DOCTOR BLADE FOR A SCREEN PRINTING MACHINE
Title (en)
DOCTOR BLADE FOR A SCREEN PRINTING MACHINE
Title (de)
RAKELVORRICHTING FÜR EINE SIEBDRUCKMASCHINE
Title (fr)
RACLE POUR UNE MACHINE DE SERIGRAPHIE
Publication
Application
Priority
- EP 9701628 W 19970401
- FR 9604012 A 19960329
Abstract (en)
[origin: WO9736747A1] A doctor blade (2) for use in a screen printing machine or for handling by an operator with a view to printing or transferring fluids or pastes, or other applications, including a head (3), a single or multiple solid or foraminous non-continuous resilient member (4), and a flexible lip (5). The flexibility of the doctor blade (2) at each point along its length is the result of a combination of the inherent flexibility of the lip (5) and that of the corresponding portion of the member (4). The arrangement of at least one such member (4) in at least two spaced layers of springs provides perfect control of the angle of the lip (5), regardless of the pressure exerted, the working speed and the evenness of the contact surfaces, in order to optimise deposition. Differential adjustment of the spacing between the spring elements enables selective adjustment of the flexibility of the doctor blade (2). An inflatable sleeve (19) in the doctor blade head spreads the vertical pressure. All of the components are electrically conductive so that static electricity is removed. The lip (5) is short and may consist of a permanent core (23) and a releasable clip-on cover (24).
IPC 1-7
IPC 8 full level
B41F 15/44 (2006.01)
CPC (source: EP US)
B41F 15/44 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9736747 A1 19971009; AT E208267 T1 20011115; AU 2507697 A 19971022; DE 69708070 D1 20011213; DE 69708070 T2 20020620; EP 0889784 A1 19990113; EP 0889784 B1 20011107; FR 2746704 A1 19971003; FR 2746704 B1 19980522; JP 2000507514 A 20000620; US 6109174 A 20000829
DOCDB simple family (application)
EP 9701628 W 19970401; AT 97916420 T 19970401; AU 2507697 A 19970401; DE 69708070 T 19970401; EP 97916420 A 19970401; FR 9604012 A 19960329; JP 53493897 A 19970401; US 15561999 A 19990415