Global Patent Index - EP 1475345 A1

EP 1475345 A1 20041110 - Method of controlling crane boom arrangement and apparatus for implementation thereof

Title (en)

Method of controlling crane boom arrangement and apparatus for implementation thereof

Title (de)

Verfahren zum Steuern eines Kranauslegers und Vorrichtung zur Durchführung des Verfahrens

Title (fr)

Procédé pour la commande d'une flèche de grue et dispositif pour la mise en oeuvre du procédé

Publication

EP 1475345 A1 20041110 (EN)

Application

EP 04101857 A 20040430

Priority

FI 20030700 A 20030509

Abstract (en)

The invention relates to a method controlling a crane boom arrangement (2, 3, 4, 5, 6), comprising moving a lifting boom (3) functionally connected by a joint (18) to a post (2) mounted in a crane base (1) by at least one lifting cylinder (7). The lifting cylinder (7) is articulated with the post (2) by a first joint (16) and connected to the lifting boom (3) movable with respect to the post (3) by a second joint (17) and it is controlled by control means (23). The invention is characterized in that the lifting boom (3) is moved with respect to the post (2) by a moment generated by an auxiliary cylinder (9) controlled by separate control means (22) about a joint (18) connecting the post (2) and the lifting boom (3) in situations where the position between the post (2) and the lifting boom 83) is such that the moment of the lifting cylinder (7) alone is insufficient for moving the lifting boom (3). <IMAGE>

IPC 1-7

B66C 23/42

IPC 8 full level

B60P 1/54 (2006.01); B66C 23/42 (2006.01); B66C 23/62 (2006.01)

IPC 8 main group level

B66C (2006.01)

CPC (source: EP)

B66C 23/54 (2013.01); B66C 23/545 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1475345 A1 20041110; CA 2466626 A1 20041109; FI 20030700 A0 20030509; FI 20030700 A 20041110

DOCDB simple family (application)

EP 04101857 A 20040430; CA 2466626 A 20040506; FI 20030700 A 20030509