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Patent Searching and Data


Title:
GAS-CONVEYED THREADING DEVICE FOR SEWING MACHINE
Document Type and Number:
WIPO Patent Application WO/2013/042277
Kind Code:
A1
Abstract:
[Problem] To prohibit improper switching of the looper threading/stitch formation switching mechanism to the stitch-forming state during the gas supply action of the gas supply pump in one-touch threading of a looper. [Solution] The device is provided with: a clutch (60) for transmitting motive power from the sewing machine motor (M) to the drive shaft (5) that drives the stitch-forming unit (30), which comprises loopers (7, 8, 9), during stitch formation or to the gas supply pump (41) during looper threading; a looper threading/stitch formation switching mechanism (90) for switching the clutch so that power transmission to the stitch-forming unit is blocked and motive power is transmitted to the gas supply pump during looper threading, and motive power is transmitted to the stitch-forming unit and power transmission to the gas supply pump is blocked during stitch formation; and a switch-prohibiting mechanism (160) for prohibiting improper switching of the looper threading/stitch formation switching mechanism to the stitch-forming state during the gas supply action of the gas supply pump.

Inventors:
ISHIKAWA MASATO (JP)
Application Number:
PCT/JP2011/075976
Publication Date:
March 28, 2013
Filing Date:
November 10, 2011
Export Citation:
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Assignee:
SUZUKI MFG (JP)
ISHIKAWA MASATO (JP)
International Classes:
D05B63/00; D05B57/02
Foreign References:
JP4741701B22011-08-10
JP2865470B21999-03-08
JP2008119361A2008-05-29
JP4741701B22011-08-10
Other References:
See also references of EP 2762627A4
Attorney, Agent or Firm:
MORIYA, KAZUO (JP)
Kazuo Moriya (JP)
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Claims: