EP 0743459 B1 19980812 - Electrohydraulic lifting device
Title (en)
Electrohydraulic lifting device
Title (de)
Elektrohydraulisches Hubmodul
Title (fr)
Module de levage électrohydraulique
Publication
Application
Priority
DE 29508394 U 19950519
Abstract (en)
[origin: EP0743459A1] The lifting module has a pressure source coupled via a working line (H) to a lifting cylinder, with a 2-way regulator (B,W) inserted in a discharge line (3') between the working line and a feedback line (R). The regulator has a measuring stop (B) adjusted by a proportional magnet and a pressure balance (W) with a spring-biased regulating piston (10), displaced in opposite directions via respective control lines (4,7). A control chamber (23) of the pressure balance is coupled via a bypass channel (Y) to one control line. The mouth (28) of the bypass channel is open during the initial opening movement of the regulating piston and blocked by the latter upon further opening.
IPC 1-7
IPC 8 full level
B66F 9/22 (2006.01); F15B 11/05 (2006.01); F15B 13/01 (2006.01)
CPC (source: EP)
B66F 9/22 (2013.01); F15B 11/05 (2013.01); F15B 2211/40515 (2013.01); F15B 2211/41563 (2013.01); F15B 2211/428 (2013.01); F15B 2211/45 (2013.01); F15B 2211/50536 (2013.01); F15B 2211/5157 (2013.01); F15B 2211/528 (2013.01); F15B 2211/6355 (2013.01); F15B 2211/7052 (2013.01); F15B 2211/851 (2013.01); F15B 2211/8613 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0743459 A1 19961120; EP 0743459 B1 19980812; AT E169723 T1 19980815; DE 29508394 U1 19950803; DE 59600416 D1 19980917; DK 0743459 T3 19990517; ES 2122741 T3 19981216
DOCDB simple family (application)
EP 96106917 A 19960502; AT 96106917 T 19960502; DE 29508394 U 19950519; DE 59600416 T 19960502; DK 96106917 T 19960502; ES 96106917 T 19960502