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Patent Searching and Data


Title:
OVERLOCK SEWING MACHINE
Document Type and Number:
Japanese Patent JP2002066185
Kind Code:
A
Abstract:

To provide a two needle overlock sewing machine which can keep an open ring formed following advancing cloth in a retained posture so as not to overlap a needle location and stably making reverse stitching to sew the open ring into following cloth at the start of sewing.

This overlock sewing machine is equipped with a needle thread pull off device 7 to act on needles 5, 5 and needle threads S1, S2 stretched between thread tension devices 41, 42 and to pull off the needle threads S1, S2 to thread tension devices 41, 42 and a looper thread returning device 8 to act on looper thread S4 stretched between the looper and the thread tension device 44 to pull back the looper thread S4 to the thread tension device 44. The needle thread pull off device 7 is first actuated and then the looper thread returning device.


Inventors:
INOUE TADANORI
KINOSHITA RYUICHIRO
Application Number:
JP2000000252918
Publication Date:
March 05, 2002
Filing Date:
August 23, 2000
Export Citation:
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Assignee:
YAMATO SEWING MACH CO LTD
International Classes:
D05B65/06; D05B1/20; D05B45/00; D05B47/02; D05B63/00; (IPC1-7): D05B65/06; D05B1/20; D05B45/00; D05B47/02; D05B63/00
Domestic Patent References:
JPH0716781U1995-03-20
JPH03159683A1991-07-09
Attorney, Agent or Firm:
河野 登夫