Title:
UPPER THREAD CLAMPING DEVICE FOR SEWING MACHINE
Document Type and Number:
WIPO Patent Application WO/2010/058939
Kind Code:
A2
Abstract:
The present invention provides an dispositif for a sewing machine which clamps the end of an upper thread for the next sewing job, wherein the upper thread is automatically cut after finishing sewing. The upper thread clamping device enables compatibility even when using presser feet with different widths. More specifically, the clamping device effectively clamps the upper thread even when using a narrow presser foot. Therefore, the clamping device is able to: prevent waste of sewing thread by maintaining the length of the upper thread from a needle as short as possible; effectively prevent separation of the upper thread from the needle; and effectively prevent entanglement of the sewing thread caused by unnecessary long lengths of the upper thread on the sewing surface when sewing starts. In the clamping device, a presser foot fixture (62) and a needle fixture (6) are vertically arranged on one end of an arm (1). The clamping device has the presser foot (63) which is connected to the presser foot fixture (62) by a press foot block (60) to enable vertical movement in the presser foot fixture (62). The clamping device is characterized in including: a drive generator (2) which is operated by the controller of a sewing machine; a pair of stoppers (70) which are installed on the press foot (63) and are arranged apart to place a needle (7) connected to the needle fixture (6) between the stoppers; and a holder (50) which has a holding lug (51) located between the stoppers and alternatively moves to the stoppers due to a connection with the drive generator (2). The holding lugs (51) are located on both sides of the stoppers due to the drive generator (2).
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Inventors:
OH YOUNG GON (KR)
Application Number:
PCT/KR2009/006753
Publication Date:
May 27, 2010
Filing Date:
November 17, 2009
Export Citation:
Assignee:
OH YOUNG GON (KR)
International Classes:
D05B65/06; D05B29/00; D05B65/00
Foreign References:
| US4422397A | 1983-12-27 | |||
| US5367969A | 1994-11-29 | |||
| JPH0636586U | 1994-05-17 | |||
| JP2001300171A | 2001-10-30 | |||
| JP2004167007A | 2004-06-17 | |||
| KR20040023846A | 2004-03-20 |
Attorney, Agent or Firm:
BAEG, Seung Jun (KR)
백승준 (KR)
백승준 (KR)
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