Global Patent Index - EP 1819517 A2

EP 1819517 A2 20070822 - INK JET WRITING HEAD

Title (en)

INK JET WRITING HEAD

Title (de)

TINTENSTRAHL-SCHREIBKOPF

Title (fr)

TETE D'ECRITURE A JET D'ENCRE

Publication

EP 1819517 A2 20070822 (DE)

Application

EP 05811216 A 20051024

Priority

  • EP 2005011392 W 20051024
  • DE 102004051973 A 20041025
  • DE 102005003541 A 20050126
  • DE 102005015694 A 20050405
  • DE 102005020248 A 20050428
  • DE 102005031034 A 20050702

Abstract (en)

[origin: WO2006045572A2] The invention relates to an ink jet writing head comprising a pressurised ink chamber (2) provided with at least one ink nozzle that is closed by a mobile valve body (6). A piezoelectric valve actuating device (9) that is electrically connected to a control device (18) drives the valve body (6) with reciprocating motions. The valve body (6) is held by a closing spring (7) in the closing position thereof and is connected to a connecting rod (8) in a driving manner. At least one curved spring strip (14) engages with the end of the connecting rod (8), located at a distance from the valve, said spring strip being supported on the valve-side end thereof, opposite the ink chamber (2). The connecting rod (8) is subjected to the tractional prestress of a tension spring (7, 23). At least one piezoelectric element (17) is applied to the spring strip (14), said piezoelectric element being controlled by the control device (18) in such a way as to perform tractile movements.

IPC 8 full level

B41J 2/14 (2006.01)

CPC (source: EP)

B41J 2/14201 (2013.01); B41J 2202/05 (2013.01)

Citation (search report)

See references of WO 2006045572A3

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2006045572 A2 20060504; WO 2006045572 A3 20060803; AT 394229 T 20080515; DE 502005004054 D1 20080619; EP 1819517 A2 20070822; EP 1819517 B1 20080507; US 2009115816 A1 20090507; US 7824015 B2 20101102

DOCDB simple family (application)

EP 2005011392 W 20051024; AT 05811216 T 20051024; DE 502005004054 T 20051024; EP 05811216 A 20051024; US 57780305 A 20051024