公开(公告)号：US3886877A

公开(公告)日：1975-06-03

申请号：US42873373

申请日：1973-12-27

申请人： KABUISHI KAISHA GUNPO

发明人： AKAISHI HACHIRO ,  BUSUZIMA SHIGEO ,  KATAYAMA MORIO ,  KAN AKINORI

IPC分类号： D05B1/20 ,  D05B33/02 ,  D05B35/10 ,  D05B21/00 ,  D05B35/02

CPC分类号： D05B33/02 ,  D05D2207/04 ,  D05D2207/06 ,  Y10S112/02

摘要： A lockseamer mechanism for trimming the free edge of cloth is disclosed, whereby a composite of knitted or woven cloth for men and women can now be easily fabricated at a high speed without requiring the full time attendance of a shopworker. A lockseamer generally employs three independent threads which are supplied to conventional sewing machine needles. Cloth to be lockseamed along a lengthwise edge is first led to an initial guide gauge having a guiding edge and made of stainless steel sheet. Adjacent thereto a principal guide gauge is provided and has a guide edge adapted to handle any type of curve, including outside curve and inside curve, as well as straight edges. A pair of high pressure jet nozzles are provided to press the cloth sideways against the guide edges. Electric eyes, responsive to the incoming cloth, actuate a third nozzle to advance the cloth towards the sewing machine needle. When lockseaming of the cloth is completed, the thread is automatically cut off and the cloth is moved and then removed from the edge of the sewing table.