EP 1043259 A2 20001011 - Self-centring expanding shaft
Title (en)
Self-centring expanding shaft
Title (de)
Selbstzentrierende spreizbare Welle
Title (fr)
Arbre expansible à centrage automatique
Publication
Application
Priority
IT MI990647 A 19990329
Abstract (en)
A composite expanding shaft comprising a pneumatic expanding blocking system of a bobbin and a pneumechanic centering system is disclosed, wherein the pneumechanic system comprises at least a movable thrust element operated by a fluid under pressure supplied into an expansion chamber, a first passage way being apt to connect said expansion chamber to an inflation duct of the pneumatic system, and comprising further an obstructing means of said firts passage way, jointly movable with said thrust element of the centering system, apt to keep closed said first passage way for at least a predetermined portion of the thrust element stroke. <IMAGE>
IPC 1-7
IPC 8 full level
B65H 75/24 (2006.01)
CPC (source: EP US)
B65H 75/243 (2013.01 - EP US); B65H 75/2484 (2021.05 - EP US)
Designated contracting state (EPC)
BE ES FR GB IT
DOCDB simple family (publication)
EP 1043259 A2 20001011; EP 1043259 A3 20010523; IT 1312239 B1 20020409; IT MI990647 A1 20000929
DOCDB simple family (application)
EP 99119660 A 19991004; IT MI990647 A 19990329