EP 0179742 A1 19860430 - Device for the control and stopping of automatic sewing machines, in particular multi-needle embroidering machines.
Title (en)
Device for the control and stopping of automatic sewing machines, in particular multi-needle embroidering machines.
Title (de)
Steuer- und Abstellvorrichtung für automatische Nähmaschinen, besonders Mehrnadelstrickmaschinen.
Title (fr)
Dispositif de contrÔle et d'arrêt de machines automatiques à coudre, en particulier brodeuses à plusieurs aiguilles.
Publication
Application
Priority
IT 2324084 A 19841019
Abstract (en)
Device for the control and stopping of a sewing machine, comprising at least one pulley (15) driven into rotation by one of the sewing threads (controlled thread) and a disc (20) connected to said pulley. A plurality of reference elements (21) on the disc and an external sensor (24) make possible accurate measurement of the pulley's rotating speed, which is proportional to the consumption of the thread under control. Said speed is compared by an electronic circuit (26) with two extreme selectable preset values to stop operation of the machine when the speed deviates from preset limits. In this way, a total control is obtained over all the sewing anomalie such as: breakage of the top needle thread, breakage of the crochet or shuttle bottom thread, skipping of stitches, anomalous tension of the threads.
IPC 1-7
IPC 8 full level
D05B 51/00 (2006.01); D05C 11/14 (2006.01)
CPC (source: EP)
D05B 51/00 (2013.01); D05C 11/14 (2013.01)
Citation (search report)
- [X] US 3843883 A 19741022 - DE VITA R, et al
- [X] FR 2041627 A5 19710129 - WITTENBERGE NAEHMASCH VEB
- [X] US 4196685 A 19800408 - TAMURA KAZUYOSHI [JP]
Designated contracting state (EPC)
CH DE FR GB LI
DOCDB simple family (publication)
EP 0179742 A1 19860430; IT 1175873 B 19870715; IT 8423240 A0 19841019; IT 8423240 A1 19860419
DOCDB simple family (application)
EP 85830159 A 19850625; IT 2324084 A 19841019