EP 3438469 A1 20190206 - PIVOT ARM DEVICE AND BRIDGE
Title (en)
PIVOT ARM DEVICE AND BRIDGE
Title (de)
SCHWENKARMVORRICHTUNG UND BRÜCKE
Title (fr)
DISPOSITIF DE BRAS DE PIVOT ET PONT
Publication
Application
Priority
EP 17184853 A 20170804
Abstract (en)
The invention discloses a pivot arm device comprising a pivot arm rotatable about an axis of rotation. For rotating the pivot arm a hydraulic cylinder is provided. The latter comprises a piston including a first effective area to which pressure medium can be applied in the raising direction of the pivot arm and including a second effective area to which pressure medium can be applied in the lowering direction of the pivot arm. Moreover, the piston includes a third effective area to which pressure medium can be applied in the raising direction and which serves for load compensation.
IPC 8 full level
F15B 15/14 (2006.01); E01D 15/00 (2006.01)
CPC (source: EP)
E01D 15/005 (2013.01); F15B 15/1466 (2013.01); E01D 15/06 (2013.01); F15B 1/024 (2013.01); F15B 2211/625 (2013.01); F15B 2211/7055 (2013.01)
Citation (applicant)
- US 3376795 A 19680409 - ALLEN EARLE F
- US 5454127 A 19951003 - DVORAK IVAN [US], et al
Citation (search report)
- [XYI] US 3186305 A 19650601 - LORIMER JOHN D
- [XYI] WO 0055435 A1 20000921 - KORTESALMI OSSI [FI]
- [XYI] JP S5438306 U 19790313
- [X] WO 2007033491 A1 20070329 - FURGALA GEORGE WOJCIECH [CA]
- [IY] DE 102007061294 A1 20090618 - SAUER THOMAS [DE]
- [Y] FR 2631641 A1 19891124 - BAUDIN CHATEAUNEUF [FR]
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)
DOCDB simple family (application)
EP 17184853 A 20170804