EP 0838562 B1 20021204 - Concrete pump boom
Title (en)
Concrete pump boom
Title (de)
Betonverteilermast für Betonpumpen
Title (fr)
Bras de distribution pour pompes à béton
Publication
Application
Priority
DE 19644412 A 19961025
Abstract (en)
[origin: EP0838562A1] The mast comprises several interconnected elongated mast arms (1,2,3) with pipe segments guided and fixed thereon to make up the concrete delivery pipe (34). The last mast arm (3) is divided into two arm sections which can swivel restrictedly relative to each other on a swivel axis (46') which is perpendicular to the last bend axis (C) and to the longitudinal extension of the last mast arm. The pipe segment guided along the last mast arm can have two segments sections which swivel or bend relative to each other about the swivel axis e.g. through hydraulic or electrical means. The arm section on the side of the end hose is preferably five times as long as the arm section on the side of the joint.
IPC 1-7
IPC 8 full level
E04G 21/04 (2006.01)
CPC (source: EP)
E04G 21/04 (2013.01); E04G 21/0436 (2013.01)
Designated contracting state (EPC)
DE IT
DOCDB simple family (publication)
EP 0838562 A1 19980429; EP 0838562 B1 20021204; DE 19644412 A1 19980430; DE 59708879 D1 20030116
DOCDB simple family (application)
EP 97113633 A 19970807; DE 19644412 A 19961025; DE 59708879 T 19970807