IP Library › Granted Patent US 12,595,604
Granted Patent B2
US 12,595,604 · App. 18/724,683 · Granted Apr 7, 2026

Sewing device

Inventors: Toshiaki Sawada (Toyama, JP); Takayoshi Tanaka (Toyama, JP); Hitomi Nishida (Toyama, JP); Harumi Takagishi (Toyama, JP); Takafumi Oba (Toyama, JP); Takuma Kawato (Toyama, JP); Norihiro Takagi (Toyama, JP)
Assignee: YKK Corporation
D05B35/064D05B23/00D05B33/006
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Quick Facts
Patent No.
US 12,595,604
App. No.
18/724,683
Granted
Apr 7, 2026
Kind
B2
Abstract

A sewing device includes: a fly base on which a fly is to be placed; a fastener base on which a fastener is to be placed; a first conveying device configured to convey the fly on the fly base; a first sewing machine configured to perform edge overcasting on the fly during conveyance by the first conveying device; a supplying and conveying device configured to supply the fastener from the fastener base onto the fly, on which the edge overcasting is finished, in an overlapped manner, and configured to convey the fly and the fastener together; and a second sewing machine configured to sew the fly and the fastener during conveyance aby the supplying and conveying device.

Claims (22)

1 . A sewing device, comprising:

a fly base on which a fly is to be placed;

a fastener base on which a fastener is to be placed;

a first conveying device configured to convey the fly on the fly base;

a first sewing machine configured to perform edge overcasting on the fly during conveyance by the first conveying device;

a supplying and conveying device configured to supply the fastener from the fastener base onto the fly, on which the edge overcasting is finished, in an overlapped manner, and configured to convey the fly and the fastener together; and

a second sewing machine configured to sew the fly and the fastener during conveyance by the supplying and conveying device.

2 . The sewing device according to claim 1 , further comprising:

a fly supplying portion configured to supply the fly onto the fly base one by one, wherein

the fly supplying portion includes

a fly bundle base on which a fly bundle formed by stacking a plurality of flies is to be placed,

a fly conveying device configured to take out the fly from the fly bundle one by one and configured to convey the fly to the fly base, and

a fly positioning device configured to position the fly supplied to the fly base.

3 . The sewing device according to claim 1 , wherein

the supplying and conveying device includes

a fastener supplying device configured to supply the fastener from the fastener base onto the fly, on which the edge overcasting is finished, in the overlapped manner, and

a second conveying device configured to linearly convey the fly and the fastener in an overlapped state to the second sewing machine, and

the first conveying device is capable of conveying the fly, on which the edge overcasting is finished, on a linear conveyance path provided by the second conveying device, and capable of correcting at least one of a posture and a position of the fly before the fastener is overlapped on the fly.

4 . The sewing device according to claim 1 , further comprising:

a tape guide configured to be inserted between a pair of tapes of the fastener on an upstream side in a conveying direction with respect to a needle of the second sewing machine.

5 . The sewing device according to claim 1 , further comprising:

a sewing thread cutting device configured to cut a sewing thread after sewing performed by the second sewing machine.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 27, 2024
From: SAWADA, TOSHIAKI; TANAKA, TAKAYOSHI; NISHIDA, HITOMI; TAKAGISHI, HARUMI; OBA, TAKAFUMI; KAWATO, TAKUMA; TAKAGI, NORIHIRO
To: YKK CORPORATION
Reel/Frame 067931/0291 →
Continuity (1)
Related Publication 20250179707A1 · Jun 5, 2025
References Cited (29)
US 3765348A · Jabor et al. · 1973 [cited by applicant]
US 4541352A · Boser et al. · 1985 [cited by applicant]
US 4979450A · Dudek · 1990 [cited by examiner]
US 5067424A · Ishikawa · 1991 [cited by examiner]
US 5069148A · Ishikawa · 1991 [cited by examiner]
US 5161474A · Ishikawa · 1992 [cited by examiner]
US 5170733A · Honma · 1992 [cited by examiner]
US 5701833A · Suzuki · 1997 [cited by examiner]
US 6237518B1 · Yunoki et al. · 2001 [cited by applicant]
US 7401563B2 · Sho · 2008 [cited by examiner]
US 7444951B2 · Ishikawa · 2008 [cited by examiner]
US 7628114B2 · Aoyama · 2009 [cited by examiner]
US 20070017425A1 · Sho · 2007 [cited by examiner]
US 20080115710A1 · Ishikawa · 2008 [cited by examiner]
US 20150361605A1 · Nakata et al. · 2015 [cited by applicant]
US 20200109501A1 · Umekawa · 2020 [cited by applicant]
CN 110158242A · 2019 [cited by applicant]
CN 111836923A · 2020 [cited by applicant]
CN 112263055A · 2021 [cited by applicant]
JP 2000070579A · 2000 [cited by applicant]
JP 6423568B1 · 2018 [cited by applicant]
WO 2018216061A1 · 2018 [cited by applicant]
WO 2020003983A1 · 2020 [cited by applicant]
WO 2020044390A1 · 2020 [cited by applicant]
International Search Report, PCT Patent Application No. PCT/JP2021/048736, Mar. 22, 2022, 5 pages. [cited by applicant]
Written Opinion, PCT Patent Application No. PCT/JP2021/048736, Mar. 22, 2022, 4 pages. [cited by applicant]
Supplementary European Search Report, European Patent Application No. 21969956.8, Jan. 3, 2025. 8 pages. [cited by applicant]
International Preliminary Report on Patentability, PCT Patent Application No. PCT/JP2021/048736, Jun. 20, 2024, 9 pages. [cited by applicant]
Office Action, Chinese Patent Application No. 202180105317.X, Feb. 6, 2026, 17 pages. [cited by applicant]