EP 2634128 A3 20140709 - Expansion mandrel for coils
Title (en)
Expansion mandrel for coils
Title (de)
Erweiterungsdorn für Spulen
Title (fr)
Mandrin d'expansion pour bobines
Publication
Application
Priority
- EP 12157370 A 20120228
- IT PC20120010 A 20120419
- EP 12199120 A 20121221
Abstract (en)
[origin: EP2634128A2] The present invention relates to an expansion gripper comprising a hollow shaft (2) at one end of which there is produced a hub (3), a sleeve (5) mounted to slide along an axis (X) on said hub (3) with a first inner portion (6) and a second outer portion (7), mutually coaxial, a liner (8) connected integral with the hub (3), provided with a plurality of through openings (9) adapted to house inserts (10) that act as gripping elements of the gripper, said second portion (7) being provided with through openings (14) adapted to house the same number of rolling means (13) interposed between the outer surface of said hub (3) and the lower surface of said inserts (10), said surfaces being provided with profiles (11, 12) adapted to cooperate with said rolling means (13) to control the movement of said inserts (10) from a closed position in which they retract inside the contour of the liner (8) to an open position in which they project from said liner (8).
IPC 8 full level
B65H 75/24 (2006.01)
CPC (source: EP US)
B65H 75/248 (2013.01 - EP US)
Citation (search report)
- [XYI] DE 3339977 A1 19850515 - AGFA GEVAERT AG [DE]
- [Y] US 537789 A 18950416
- [Y] US 6533214 B1 20030318 - GUTTIN CHRISTIAN [FR]
- [Y] US 4433814 A 19840228 - PONTES VIRGIL M [US], et al
- [A] US 2908452 A 19591013 - JACOBSEN PAUL W
- [A] US 4148444 A 19790410 - HEHNER REINHARD
- [A] US 3472524 A 19691014 - MANSELL HENRY J
- [A] DE 1205792 B 19651125 - SPERRY RAND CORP
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2634128 A2 20130904; EP 2634128 A3 20140709; EP 2634128 B1 20190724; IT PC20120010 A1 20130829
DOCDB simple family (application)
EP 12199120 A 20121221; IT PC20120010 A 20120419