Title:
TWO-NEEDLE SEWING MACHINE AND TWO-NEEDLE SEWING MACHINE STITCH FORMING METHOD
Document Type and Number:
WIPO Patent Application WO/2011/155091
Kind Code:
A1
Abstract:
Disclosed is a two-needle sewing machine that improves strength in a convex curve part by bringing a pair of stitches close together when sewing an item to be sewed that comprises the convex curve part. A two-needle sewing machine (1) comprises a bed part (3); a column part (5); an arm part (6); a needle shaft (11) that is disposed on the leading part of the arm part (6); two sewing needles (13, 14) that are attached to the needle shaft (11); two horizontal rotary hooks (15, 16) that catch the respective needle thread loops of the two sewing needles (13, 14); and a conveyor member (21) that conveys a material to be sewed (40) in a direction approximately orthogonal to the bed part (3). On the two-needle sewing machine (1), the sewing needle (13), which is positioned in a location further from the column part (5), is disposed closer to the conveyance side of the material to be sewed (40) than the sewing needle (14) that is positioned in a location closer to the column part (5).
Inventors:
ASAO HIDEO (JP)
NISHI NOBUHIRO (JP)
NISHI NOBUHIRO (JP)
Application Number:
PCT/JP2010/073504
Publication Date:
December 15, 2011
Filing Date:
December 27, 2010
Export Citation:
Assignee:
MIDORI ANZEN CO LTD (JP)
MIDORI ANZEN HOUGI CO LTD (JP)
ASAO HIDEO (JP)
NISHI NOBUHIRO (JP)
MIDORI ANZEN HOUGI CO LTD (JP)
ASAO HIDEO (JP)
NISHI NOBUHIRO (JP)
International Classes:
D05B1/12
Domestic Patent References:
| WO2009113337A1 | 2009-09-17 |
Foreign References:
| JPH05210527A | 1993-08-20 | |||
| JP4456846B2 | 2010-04-28 |
Other References:
See also references of EP 2581481A4
Attorney, Agent or Firm:
TAKADA, SHUJI (JP)
Shuji Takada (JP)
Shuji Takada (JP)
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Claims: