GB1507213A - Needle bar release device - Google Patents
Needle bar release deviceInfo
- Publication number
- GB1507213A GB1507213A GB22322/75A GB2232275A GB1507213A GB 1507213 A GB1507213 A GB 1507213A GB 22322/75 A GB22322/75 A GB 22322/75A GB 2232275 A GB2232275 A GB 2232275A GB 1507213 A GB1507213 A GB 1507213A
- Authority
- GB
- United Kingdom
- Prior art keywords
- block
- needle bar
- drive
- coupling
- lever
- 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
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B55/00—Needle holders; Needle bars
- D05B55/14—Needle-bar drives
- D05B55/16—Needle-bar drives with provision for disengaging individual needle bars
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
1507213 Disconnecting sewing needle drive SINGER CO 22 May 1975 [13 Sept 1974] 22322/75 Heading DIG A sewing machine, which is provided with a drive disconnectable from a needle bar 14 mounted for reciprocation in a frame 10 by electrical actuating means, comprises coupling means 32, 40 forming a detachable connection between the needle bar 14, 26 and the drive means 18, a coupling release member 52 normally disposed (as shown) in a position where coupling is maintained and pivotable to a second position by the electrical means 96 to a position where the members 18 and 26 are uncoupled. The drive means 18 comprises a block 20 slidable on needle bar 14 to which is secured a block 28 having pivoted thereto interengaging levers 32, 40 of which the latter has a lug (48 Fig. 2 not shown) normally urged by spring 50 to engage below block 18 to couple the drive to the needle bar. The release member 50 has a slot 54 and a notch 74 having cam edges 56, 58 and 76, 78 respectively, engaging respective posts 60, 80, a spring 86 normally biassing the release member downwards when upper cam edges 56, 76 position the member 52 away from a trigger extension 36 on lever 32 pivoted to block 28. Operation of solenoid 96 causes linkage 124, 122, 116 to pivot release member 66 anti-clockwise about post 60 to engage extension 36 and rotate lever 32 anti-clockwise about pivot 34, lever ends 38, 46 abutting to pivot lever 40 against spring 50 and uncouple driving block 20 from block 28, when spring 49 raises the needle bar to an inoperative position. De-energisation of the solenoid allows spring 50 to act through levers 40, 32 and trigger extension 36 to move 66 back to its inoperative position, the extension (48) on lever 40 re-engaging below block 20 when the latter next rises to its upper position. The coupling may also be disengaged manually by raising the release member 52 by a lower flange 94, the camming action of the edges 58, 78 on the respective posts 60, 80 moving member 52 laterally to engage trigger extension 36 and release the drive coupling as before.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US505829A US3872809A (en) | 1974-09-13 | 1974-09-13 | Needle bar release device |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1507213A true GB1507213A (en) | 1978-04-12 |
Family
ID=24012025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22322/75A Expired GB1507213A (en) | 1974-09-13 | 1975-05-22 | Needle bar release device |
Country Status (3)
Country | Link |
---|---|
US (1) | US3872809A (en) |
JP (1) | JPS5916799B2 (en) |
GB (1) | GB1507213A (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4129084A (en) * | 1976-04-12 | 1978-12-12 | Sanwa Industries, Ltd. | Needle bar disengaging device for sewing machines |
US4000706A (en) * | 1976-05-06 | 1977-01-04 | The Singer Company | Skip stitch mechanism for sewing machines |
DE2640174C2 (en) * | 1976-09-07 | 1984-05-10 | Dorina Nähmaschinen GmbH, 7500 Karlsruhe | sewing machine |
US4098207A (en) * | 1977-04-26 | 1978-07-04 | The Singer Company | Electromechanical needle bar engaging device |
US4123983A (en) * | 1977-11-16 | 1978-11-07 | The Singer Company | Retractable needle basting mechanism |
US4181087A (en) * | 1978-08-11 | 1980-01-01 | The Singer Company | Method for initially positioning a traveling buttonhole presser foot |
US4216733A (en) * | 1979-01-08 | 1980-08-12 | The Singer Company | Automatic bobbin winding system |
US4438715A (en) * | 1980-11-17 | 1984-03-27 | The Singer Company | Buttonhole sewing repair |
US4374503A (en) * | 1981-03-27 | 1983-02-22 | The Singer Company | Chain stitch device for lock stitch sewing machines |
DE8120717U1 (en) * | 1981-07-15 | 1981-11-05 | Maschinenfabrik Carl Zangs Ag, 4150 Krefeld | DEVICE FOR THE INTERRUPTION OF THE EMBROIDERY NEEDLE ON EMBROIDERY OR SEWING MACHINES |
JPS58156899A (en) * | 1982-03-15 | 1983-09-17 | 化成オプトニクス株式会社 | Radiation image conversion screen |
US4452157A (en) * | 1982-04-19 | 1984-06-05 | The Singer Company | Basting stitch mechanism |
JP3723970B2 (en) * | 1999-01-18 | 2005-12-07 | ブラザー工業株式会社 | sewing machine |
US8468961B2 (en) * | 2011-02-11 | 2013-06-25 | Zeng Hsing Industrial Co., Ltd. | Clutch device for a needle bar of a sewing machine |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3782311A (en) * | 1972-12-29 | 1974-01-01 | Singer Co | Simplified basting stitch mechanism |
US3815529A (en) * | 1973-04-04 | 1974-06-11 | Singer Co | Manual needle elevating device |
-
1974
- 1974-09-13 US US505829A patent/US3872809A/en not_active Expired - Lifetime
-
1975
- 1975-05-22 GB GB22322/75A patent/GB1507213A/en not_active Expired
- 1975-06-19 JP JP50074997A patent/JPS5916799B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3872809A (en) | 1975-03-25 |
JPS5916799B2 (en) | 1984-04-17 |
JPS5137753A (en) | 1976-03-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |