GB1121608A - Improvements in or relating to chain stitching on sewing machines - Google Patents
Improvements in or relating to chain stitching on sewing machinesInfo
- Publication number
- GB1121608A GB1121608A GB26599/67A GB2659967A GB1121608A GB 1121608 A GB1121608 A GB 1121608A GB 26599/67 A GB26599/67 A GB 26599/67A GB 2659967 A GB2659967 A GB 2659967A GB 1121608 A GB1121608 A GB 1121608A
- Authority
- GB
- United Kingdom
- Prior art keywords
- loop
- thread
- looptaker
- retainer
- expanded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000009958 sewing Methods 0.000 title abstract 4
- 210000003323 beak Anatomy 0.000 abstract 5
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B1/00—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both
- D05B1/02—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both for making single-thread seams
- D05B1/06—Single chain-stitch seams
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/02—Loop takers, e.g. loopers for chain-stitch sewing machines, e.g. oscillating
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/02—Loop takers, e.g. loopers for chain-stitch sewing machines, e.g. oscillating
- D05B57/04—Loop takers, e.g. loopers for chain-stitch sewing machines, e.g. oscillating rotary
Abstract
1,121,608. Sewing machines. JANOME SEWING MACHINE CO. Ltd. 8 June, 1967 [9 June, 1966; 11 July, 1966], No. 26599/67. Heading D1G. A lock stitch sewing machine is converted to chain stitching by providing a loop retainer which rotates co-axially with the rotary lock stitch looptaker, the arrangement being such that the thread loop expanded by the looptaker is held in expanded condition by the loop retainer, the needle in its next descent passes through the expanded loop to form a fresh loop, and the expanded loop is shed from the retainer to engage the fresh loop for forming a chain stitch. The rotary looptaker 1, having a loop-seizing beak 4, journals a bobbin carrier having a central pin 7. The loop-retainer 6 has a hub 16 bored to receive pin 7 and secured thereto by a grub screw 23. Rigid with hub 16 is a diametrically-disposed web 17, from the opposite ends of which extend helicallyshaped fingers 9 and 10 respectively. Finger 10 ends with an axially-disposed thread-engaging edge 18. Finger 9 and edge 18 extend within the outer end surface of looptaker 4. Thread-retaining notches 19 are formed at the ends of web 17 at the junctions of fingers 9 and 10 therewith. Boss 16 is secured to looptaker 1 by a tongue and groove connection (not shown), with web 17 disposed substantially at right angles to the diametrical line through beak 4 and with finger 10 disposed on the side of web 17 away from beak 4. In operation, an initial thread loop Ro, seized by beak 4 from the needle 2 and expanded over the looptaker body, is guided by the fingers 9, 10, after the loop has been cast off by beak 4, into engagement with the notches 19. The needle on its next descent to seize a fresh loop Rn, passes into the expanded loop Ro, and the latter, on further rotation of the looptaker, is shed from the loop-retainer 6 and is tightened by the take-up 57 upon loop Rn. Expansion of a loop by the loop-retainer 6 serves to draw thread from and thereby tighten the previously formed stitch. A thread-guiding pin 59 is positioned adjacent take-up 57 to restrict the supply of thread thereto, and the thread tension, as set by the tensioner 56, is increased over that required for lock stitching. The looptaker and thread-retainer may form an integral unit.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3680166 | 1966-06-09 | ||
JP4479166 | 1966-07-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1121608A true GB1121608A (en) | 1968-07-31 |
Family
ID=26375901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26599/67A Expired GB1121608A (en) | 1966-06-09 | 1967-06-08 | Improvements in or relating to chain stitching on sewing machines |
Country Status (3)
Country | Link |
---|---|
US (2) | US3447498A (en) |
GB (1) | GB1121608A (en) |
SE (1) | SE323864B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3625169A (en) * | 1969-09-01 | 1971-12-07 | Brothers Kogyo Kk | Chain-stitch-forming device for lock-stitch sewing machines |
JPS5244258B2 (en) * | 1971-09-25 | 1977-11-07 | ||
JPS5246142B2 (en) * | 1971-10-20 | 1977-11-22 | ||
US4108095A (en) * | 1975-12-20 | 1978-08-22 | Maruzen Sewing Machine Co., Ltd. | Rotary loop taker for sewing machine |
DE4135456C1 (en) * | 1991-10-28 | 1992-08-27 | Union Special Gmbh, 7000 Stuttgart, De | |
EP0794277A4 (en) * | 1994-11-23 | 1998-06-24 | Zarif Sharifovich Tadzhibaev | Double-thread chain-stitch sewing machine |
US5881663A (en) * | 1995-10-09 | 1999-03-16 | Juki Corporation | Method of tying a knot in chain stitching |
JP3963939B1 (en) * | 2006-02-03 | 2007-08-22 | 株式会社鈴木製作所 | Method for forming single-thread locked hand stitch and sewing machine |
JP6187410B2 (en) * | 2014-08-04 | 2017-08-30 | 豊田合成株式会社 | Stitch line formation method |
JP6389393B2 (en) * | 2014-08-05 | 2018-09-12 | 蛇の目ミシン工業株式会社 | sewing machine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US33439A (en) * | 1861-10-08 | Improvement in sewing-machines | ||
US1570667A (en) * | 1922-01-14 | 1926-01-26 | Singer Mfg Co | Sewing-machine loop taker |
US2860591A (en) * | 1954-07-22 | 1958-11-18 | Singer Mfg Co | Loop-takers for sewing machines |
US3028823A (en) * | 1960-07-18 | 1962-04-10 | O-Ocho Katsuyasu | Oscillating chain stitch looper |
-
1966
- 1966-11-08 SE SE15236/66A patent/SE323864B/xx unknown
-
1967
- 1967-06-08 GB GB26599/67A patent/GB1121608A/en not_active Expired
- 1967-06-08 US US644696A patent/US3447498A/en not_active Expired - Lifetime
-
1969
- 1969-03-27 US US811074A patent/US3540390A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3447498A (en) | 1969-06-03 |
US3540390A (en) | 1970-11-17 |
SE323864B (en) | 1970-05-11 |
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