EP 1083141 A3 20041215 - Hydraulic elevator with easier maintenance of the hydraulic driving unit
Title (en)
Hydraulic elevator with easier maintenance of the hydraulic driving unit
Title (de)
Hydraulikaufzug mit wartungsgünstiger Hydraulikantriebeinheit
Title (fr)
Ascenseur hydraulique avec maintenance simplifiée sur l'unité d'entraînement hydraulique
Publication
Application
Priority
DE 19943408 A 19990910
Abstract (en)
[origin: EP1083141A2] The lift has a cabin (2) connected to a hoisting cable (8) in a conveying area and a hydraulic drive unit (4) arranged in a lower area of the conveying area. The hydraulic drive unit has a cylinder and piston (18) arrangement, a hydraulic pump (14) and a valve arrangement (16). The piston and a hydraulic fluid reservoir are arranged in a common casing (12). The hydraulic pump and the valve arrangement are arranged above the casing. The cylinder and piston arrangement is fitted in the conveying area, so that the area of the cylinder and piston arrangement with the hydraulic pump and valve arrangement is on top of the lift cabin, when it is at its lowest position in the lift shaft. An Independent claim is included for a hydraulic drive unit for use with the lift.
IPC 1-7
IPC 8 full level
B66B 9/04 (2006.01)
CPC (source: EP)
B66B 9/04 (2013.01)
Citation (search report)
- [DA] US 4830146 A 19890516 - NAKAMURA ICHIRO [JP], et al
- [A] GB 1438727 A 19760609 - SIMS A F, et al
- [A] EP 0401863 A2 19901212 - KONE ELEVATOR GMBH [CH]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1083141 A2 20010314; EP 1083141 A3 20041215; DE 19943408 A1 20010322; DE 19943408 C2 20031204
DOCDB simple family (application)
EP 00119579 A 20000907; DE 19943408 A 19990910