GB1507213A - Needle bar release device - Google Patents

Needle bar release device

Info

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
Application number
GB22322/75A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Singer Co
Original Assignee
Singer Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Singer Co filed Critical Singer Co
Publication of GB1507213A publication Critical patent/GB1507213A/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B55/00Needle holders; Needle bars
    • D05B55/14Needle-bar drives
    • D05B55/16Needle-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.
GB22322/75A 1974-09-13 1975-05-22 Needle bar release device Expired GB1507213A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
US3872809A (en) 1975-03-25
JPS5916799B2 (en) 1984-04-17
JPS5137753A (en) 1976-03-30

Similar Documents

Publication Publication Date Title
GB1507213A (en) Needle bar release device
GB1225718A (en)
GB618267A (en) Improvements in or relating to record-card controlled machines
GB1505851A (en) Sewing machine safety device
GB1455077A (en) Zigzag sewing machine
US4323020A (en) Apparatus for overcoming sewing machine needle bind
GB1467993A (en) Fifth wheel couplings
GB254730A (en) Improvements in button feeding and positioning means and method
GB784030A (en) Improvements in or relating to thread severing devices for sewing machines
GB721919A (en) Button feeding device for button sewing machines
GB1517179A (en) Safety means for a sewing machine
GB1451531A (en) Pattern cam follower throw-out mechanism for sewing machines
US2717567A (en) Presser foot supporting and operating means for sewing machines and the like
US2097220A (en) Mechanical self-stopping device for pictures with an automatic restarter
US2963999A (en) Switching means for button clamp on sewing machines for sewing on of buttons
GB1470032A (en) Clutching device for sewing machines
GB1188229A (en) Back-Up Stitch Mechanism
GB1390543A (en) Sewing machines
GB1351102A (en) Sewing machine
GB1184085A (en) Threading Device for Sewing Machine
US2251100A (en) Motor control for computing machines
US3598071A (en) Electrically driven sewing machine with means for stopping the machine in a predetermined position of the needle bar
US2600990A (en) Letter actuated tripping device in
US2712803A (en) Overedge sewing machine
JPH0414754Y2 (en)

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee