Global Patent Index - EP 1845206 A1

EP 1845206 A1 2007-10-17 - HYDRAULIC DRIVE DEVICE

Title (en)

HYDRAULIC DRIVE DEVICE

Title (de)

HYDRAULISCHE ANTRIEBSVORRICHTUNG

Title (fr)

DISPOSITIF D'ENTRAINEMENT HYDRAULIQUE

Publication

EP 1845206 A1 (EN)

Application

EP 06712243 A

Priority

  • JP 2006301027 W
  • JP 2005018421 A

Abstract (en)

[Object] To permit driving a tilt cylinder and an angle cylinder at relatively low speed and also to permit driving an additional actuator at high speed. [Means for Achieving the Object] Provided are a tilt cylinder 9 and angle cylinder 10 for pivotally tilting a blade 7 selectively leftward and rightward and for pivotally angling the blade 7 selectively forward and rearward, respectively, and an additional actuator for actuating an additional attachment. Also provided are a tilting/angling pressure oil feed means comprising a tilting/angling directional control valve 19 for controlling a flow of pressure oil to be fed to one of the cylinders 9,10 and a selector valve 20 for selectively feeding pressure oil, which flows out of the directional control valve 19 , to one of the cylinders 9,10. An additional pressure oil feed means for feeding pressure oil to the additional actuator 27 is provided independently of the tilting/angling directional control valve, and the additional pressure oil feedmeans has an additional directional control valve 29.

IPC 8 full level (invention and additional information)

E02F 9/22 (2006.01); F15B 11/02 (2006.01); F15B 11/17 (2006.01)

CPC (invention and additional information)

E02F 9/2203 (2013.01); E02F 3/325 (2013.01); E02F 3/964 (2013.01); E02F 9/2225 (2013.01); E02F 9/2285 (2013.01); E02F 9/2292 (2013.01); E02F 9/2296 (2013.01); F15B 11/162 (2013.01); F15B 11/17 (2013.01); F15B 2211/20553 (2013.01); F15B 2211/20576 (2013.01); F15B 2211/30535 (2013.01); F15B 2211/30585 (2013.01); F15B 2211/3059 (2013.01); F15B 2211/329 (2013.01); F15B 2211/6054 (2013.01); F15B 2211/6355 (2013.01); F15B 2211/781 (2013.01)

Citation (search report)

See references of WO 2006080296A1

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

EPO simple patent family

EP 1845206 A1 20071017; CN 101107401 A 20080116; JP 2006207185 A 20060810; KR 20070095446 A 20070928; WO 2006080296 A1 20060803

INPADOC legal status


2010-07-14 [18W] WITHDRAWN

- Effective date: 20100603

2008-04-30 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) DELETED

2007-10-17 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20070815

2007-10-17 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): 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