Title:
SEWING UNIT, SEWING MACHINE, AND METHOD FOR MANUFACTURING SLIDE FASTENER EQUIPPED PRODUCT
Document Type and Number:
WIPO Patent Application WO/2024/069697
Kind Code:
A1
Abstract:
A sewing unit (30, 30a) of the present invention is attached to a sewing machine (10) for sewing a fastener stringer (1) to a fastener attachment member (5), and comprises: a movement detection unit (40) that detects ascending/descending motion of a sewing machine needle (15); a stringer conveyance unit (50, 80) that performs a feeding movement of the fastener stringer (1); and a position adjustment unit (60) that adjusts the position of the stringer conveyance unit (50, 80). The stringer conveyance unit (50, 80) includes: at least one conveyance gear (51, 81) having a plurality of teeth; and a rotation control unit (52, 82) that intermittingly rotates the conveyance gear (51, 81) in correspondence with a signal output from the movement detection unit (40). The sewing unit (30, 30a) has a structure that allows attachment and detachment with respect to the sewing machine (10), which is pre-existing. Through this configuration, a sewn portion of a sewing thread can be formed at a position contacting a fastener element (3) in order to sew the fastener stringer (1) to the fastener attachment member (5).
Inventors:
SHO YOSHIYUKI (JP)
TANAKA TAKAYOSHI (JP)
KAIDO TOMOYA (JP)
TANAKA TAKAYOSHI (JP)
KAIDO TOMOYA (JP)
Application Number:
PCT/JP2022/035703
Publication Date:
April 04, 2024
Filing Date:
September 26, 2022
Export Citation:
Assignee:
YKK CORP (JP)
International Classes:
D05B35/06
Domestic Patent References:
| WO2021234915A1 | 2021-11-25 | |||
| WO2019064394A1 | 2019-04-04 |
Foreign References:
| US5806450A | 1998-09-15 |
Attorney, Agent or Firm:
HAYASHI, Tsukasa et al. (JP)
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