EP 3954639 A1 20220216 - SUPPORT SPINDLE FOR WINDABLE MATERIAL COILS
Title (en)
SUPPORT SPINDLE FOR WINDABLE MATERIAL COILS
Title (de)
STÜTZSPINDEL FÜR AUFWICKELBARE MATERIALSPULEN
Title (fr)
AXE-SUPPORT POUR BOBINES DE MATÉRIAU ENROULABLES
Publication
Application
Priority
IT 202000019849 A 20200810
Abstract (en)
A support spindle (1) to engage a tubular winding core (2), comprises a central shaft (5) defining a rotation axis (6) and forming a connecting portion (7) and a supporting portion (9) extending from the connecting portion (8) along the rotation axis (6), a plurality of cam seats (11) formed in the supporting portion (9), a plurality of locking bodies (12) arranged radially outside the supporting portion (9) and in contact, by means of cam-follower members (13), with the cam seats (11), a supporting cage (14) connected to the central shaft (5) and which accommodates the locking bodies (12) so that the locking bodies (12) can slide radially to the rotation axis (6) with respect to the central shaft (5) and rotate about the rotation axis (6) with respect to the central shaft (5),wherein a relative rotation between the locking bodies (12) and the central shaft (5) along an angular stroke (16) causes a radial displacement of the locking bodies (12) between a retracted position and an expanded position,wherein the cam-follower members (13) form a first convex cam surface (17) in contact with a second concave cam surface (18) of the corresponding cam seat (11).
IPC 8 full level
B65H 75/24 (2006.01)
CPC (source: EP US)
B65H 18/028 (2013.01 - US); B65H 75/185 (2013.01 - EP); B65H 75/247 (2013.01 - EP); B65H 2301/41346 (2013.01 - EP)
Citation (search report)
- [XYI] EP 1090869 A2 20010411 - PANZERI ALESSANDRO COSTRUZIONI [IT]
- [Y] US 2005224627 A1 20051013 - STOLYAR SEMION [US], et al
- [Y] FR 2314124 A1 19770107 - AHLSTROEM DEV GMBH [DE]
- [X] KR 100819163 B1 20080403 - PROTEM CO LTD [KR]
- [A] US 4730779 A 19880315 - THIEVESSEN KARL [DE]
- [A] US 4635872 A 19870113 - THIEVESSEN KARL [DE]
- [A] US 3792868 A 19740219 - FLAGG R
- [A] GB 2054677 A 19810218 - JAGENBERG WERKE AG
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 3954639 A1 20220216; IT 202000019849 A1 20220210; US 2022041392 A1 20220210
DOCDB simple family (application)
EP 21188482 A 20210729; IT 202000019849 A 20200810; US 202117397478 A 20210809