EP 1867767 A3 20090527 - Driving apparatus for loom
Title (en)
Driving apparatus for loom
Title (de)
Antriebsvorrichtung für eine Webmaschine
Title (fr)
Dispositif d'entraînement pour 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)
CPC (source: EP)
D03D 51/002 (2013.01); D03D 51/007 (2013.01); D03D 51/06 (2013.01)
Citation (search report)
- [X] US 6307340 B1 20011023 - WAGNER ARNO [DE], et al
- [X] DE 102004034117 A1 20060216 - DORNIER GMBH LINDAUER [DE]
- [X] EP 0989217 A1 20000329 - TSUDAKOMA IND CO LTD [JP]
- [X] DE 4438311 A1 19950504 - NUOVO PIGNONE SPA [IT]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
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