EP 1052211 A2 20001115 - A core pipe for a sheet roll
Title (en)
A core pipe for a sheet roll
Title (de)
Hülsenrohr für Bandrolle
Title (fr)
Noyau tubulaire pour rouleau de bande
Publication
Application
Priority
- EP 97115567 A 19970908
- JP 25049296 A 19960920
Abstract (en)
It is desired to prevent misalignment of the edges of a folded sheet by smoothly feeding the sheet while keeping tension fluctuations to a minimum when the sheet is unwound from a paper roll set in a paper feed unit to a packaging unit even though the paper roll diameter decreases gradually as the sheet is unwound. A core pipe for a sheet roll is provided comprising a hollow core pipe having a predetermined length for winding a sheet therearound, and magnets provided on the inner periphery of said hollow core pipe near one end thereof at angular intervals determined such that the amount and diameter of the sheet roll wound therearound can be calculated by an angle sensor provided on a fixed shaft, said hollow core pipe being rotatable together with a hollow shaft rotatably mounted around said fixed shaft. Accordingly, the sheet tension is adjusted to an optimum, constant level by controlling the sheet braking force stepwise according to the roll diameter measured by the sensors.
IPC 1-7
IPC 8 full level
B65B 43/04 (2006.01); B65B 47/02 (2006.01); B65H 16/02 (2006.01); B65H 23/06 (2006.01); B65H 23/08 (2006.01); B65H 75/10 (2006.01); B65H 75/18 (2006.01); B65H 77/00 (2006.01)
CPC (source: EP KR)
B65B 41/12 (2013.01 - KR); B65B 57/04 (2013.01 - KR); B65H 16/005 (2013.01 - EP); B65H 16/103 (2013.01 - EP); B65H 23/063 (2013.01 - EP KR); B65H 26/06 (2013.01 - KR); B65H 26/08 (2013.01 - KR); B65H 75/10 (2013.01 - EP); B65H 75/182 (2013.01 - EP); B65H 2511/114 (2013.01 - EP); B65H 2511/14 (2013.01 - EP); B65H 2513/11 (2013.01 - EP); B65H 2553/22 (2013.01 - EP KR); B65H 2553/40 (2013.01 - KR); B65H 2553/51 (2013.01 - EP); B65H 2801/81 (2013.01 - EP)
Designated contracting state (EPC)
BE DE DK ES FR GB GR IE IT NL PT
DOCDB simple family (publication)
EP 0831048 A1 19980325; EP 0831048 B1 20020807; CA 2214597 A1 19980320; CA 2214597 C 20020402; CA 2316091 A1 19980320; CA 2316140 A1 19980320; CA 2316140 C 20031230; CN 1077080 C 20020102; CN 1162317 C 20040818; CN 1165472 C 20040908; CN 1178765 A 19980415; CN 1269318 A 20001011; CN 1356253 A 20020703; DE 69714535 D1 20020912; DE 69714535 T2 20021205; DE 69721084 D1 20030522; DE 69721084 T2 20031030; DE 69721591 D1 20030605; DE 69721591 T2 20040318; DK 0831048 T3 20021104; DK 1029818 T3 20030602; DK 1052211 T3 20030610; EP 1029818 A2 20000823; EP 1029818 A3 20000906; EP 1029818 B1 20030502; EP 1052211 A2 20001115; EP 1052211 A3 20010411; EP 1052211 B1 20030416; ES 2179986 T3 20030201; ES 2193914 T3 20031116; ES 2195816 T3 20031216; KR 100310966 B1 20011212; KR 19980024797 A 19980706; PT 1029818 E 20030829; PT 1052211 E 20030930; PT 831048 E 20021231; TW 348165 B 19981221
DOCDB simple family (application)
EP 97115567 A 19970908; CA 2214597 A 19970829; CA 2316091 A 19970829; CA 2316140 A 19970829; CN 00106530 A 19970922; CN 01119737 A 19970922; CN 97119204 A 19970922; DE 69714535 T 19970908; DE 69721084 T 19970908; DE 69721591 T 19970908; DK 00109244 T 19970908; DK 00116709 T 19970908; DK 97115567 T 19970908; EP 00109244 A 19970908; EP 00116709 A 19970908; ES 00109244 T 19970908; ES 00116709 T 19970908; ES 97115567 T 19970908; KR 19970047867 A 19970920; PT 00109244 T 19970908; PT 00116709 T 19970908; PT 97115567 T 19970908; TW 86113372 A 19970912