EP 1867767 B1 20120613 - Method for braking a loom
Title (en)
Method for braking a loom
Title (de)
Verfahren zum Abbremsen einer Webmaschine
Title (fr)
Procédé de freinage d'un métier à tisser
Publication
Application
Priority
JP 2006163242 A 20060613
Abstract (en)
[origin: EP1867767A2] A driving apparatus (30, 50) for a loom (10) includes a main shaft (14) that transmits a rotational force to devices included in the loom (10), an alternating-current motor (16), a speed-reducing mechanism for transmitting rotation of the motor (16) to the main shaft (14) while reducing a rotational speed of the motor (16) at a predetermined ratio, an electromagnetic brake (24) that applies a braking torque to the main shaft (14) when an excitation current is supplied thereto, a drive circuit (34) that supplies alternating-current power to the motor (16), and a brake circuit (36) that supplies the excitation current to the electromagnetic brake (24). When the loom (10) stops, the drive circuit (34) outputs an alternating-current voltage at a frequency corresponding to a synchronous speed lower than the actual rotational speed of the motor (16), so that the motor (16) generates a braking torque in a direction opposite to the rotating direction. In addition, the brake circuit (36) outputs the excitation current to stop the main shaft (14).
IPC 8 full level
D03D 51/02 (2006.01); D03D 51/06 (2006.01)
CPC (source: EP)
D03D 51/002 (2013.01); D03D 51/007 (2013.01); D03D 51/06 (2013.01)
Designated contracting state (EPC)
BE CH DE IT LI
DOCDB simple family (publication)
EP 1867767 A2 20071219; EP 1867767 A3 20090527; EP 1867767 B1 20120613; CN 101089270 A 20071219; CN 101089270 B 20110126; JP 2007332477 A 20071227
DOCDB simple family (application)
EP 07008337 A 20070424; CN 200710101213 A 20070424; JP 2006163242 A 20060613