EP 0221546 B1 19890517 - OPTICAL BROKEN THREADS MONITORING DEVICE FOR TUFTING MACHINES
Title (en)
OPTICAL BROKEN THREADS MONITORING DEVICE FOR TUFTING MACHINES
Publication
Application
Priority
DE 3539536 A 19851107
Abstract (en)
[origin: US4691647A] An optical thread breakage monitoring apparatus for tufting machines has a laser beam scanning apparatus (21). The retroreflecting strip (11) illuminated by this laser beam scanning apparatus (21) is secured above the eyes (12) of the needles (13) to the front side of the needle beam (14) (FIG. 1).
IPC 1-7
IPC 8 full level
B65H 63/032 (2006.01); D05C 15/00 (2006.01); D05C 15/16 (2006.01); D05C 15/18 (2006.01)
CPC (source: EP US)
B65H 63/0324 (2013.01 - EP US); D05C 15/18 (2013.01 - EP US); B65H 2701/31 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0221546 A1 19870513; EP 0221546 B1 19890517; DE 3539536 C1 19870619; DE 3663375 D1 19890622; JP S62125063 A 19870606; US 4691647 A 19870908
DOCDB simple family (application)
EP 86115346 A 19861105; DE 3539536 A 19851107; DE 3663375 T 19861105; JP 26413786 A 19861107; US 92437786 A 19861029