EP 1150019 B1 20030813 - Counter for registering the quantity of lifts of a crane
Title (en)
Counter for registering the quantity of lifts of a crane
Title (de)
Zähler für Hebevorgänge von Kränen
Title (fr)
Compteur pour totaliser le nombre de levages d'une grue
Publication
Application
Priority
SE 0001608 A 20000428
Abstract (en)
[origin: EP1150019A1] A hydraulic crane (1) comprising an inner boom 5, a hydraulic cylinder (8) for operating the inner boom (5), and a pressure sensor (34) arranged to measure the pressure in the hydraulic cylinder (8), which crane (1) further comprises a means (36) connected to the pressure sensor (34), which means is adapted to register the lifting up and putting down of a load by detecting the velocity of the pressure variations in said cylinder (8), the means (36) being adapted to register a lifting up and a putting down, respectively, of a load when the velocity of a detected pressure variation exceeds a predetermined value. The invention also relates to a method for registration of the lifting up and the putting down of a load in a hydraulic crane (1) and a method for calculation of the fatigue stress of a hydraulic crane (1) based on the number of registered liftings up and puttings down of load. <IMAGE>
IPC 1-7
IPC 8 full level
B66C 13/16 (2006.01); B66C 15/00 (2006.01); F15B 19/00 (2006.01)
CPC (source: EP)
B66C 13/16 (2013.01); B66C 15/00 (2013.01); F15B 19/005 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1150019 A1 20011031; EP 1150019 B1 20030813; AT E247235 T1 20030815; DE 60100577 D1 20030918; DE 60100577 T2 20040624; ES 2204771 T3 20040501; SE 0001608 D0 20000428; SE 0001608 L 20010611; SE 515089 C2 20010611
DOCDB simple family (application)
EP 01104876 A 20010228; AT 01104876 T 20010228; DE 60100577 T 20010228; ES 01104876 T 20010228; SE 0001608 A 20000428