GB1280070A - Improvements in or relating to sewing machines - Google Patents

Improvements in or relating to sewing machines

Info

Publication number
GB1280070A
GB1280070A GB39166/70A GB3916670A GB1280070A GB 1280070 A GB1280070 A GB 1280070A GB 39166/70 A GB39166/70 A GB 39166/70A GB 3916670 A GB3916670 A GB 3916670A GB 1280070 A GB1280070 A GB 1280070A
Authority
GB
United Kingdom
Prior art keywords
thread
guide
cutter
catcher
looptaker
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
GB39166/70A
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.)
GM Pfaff AG
Original Assignee
GM Pfaff AG
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 GM Pfaff AG filed Critical GM Pfaff AG
Publication of GB1280070A publication Critical patent/GB1280070A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B65/00—Devices for severing the needle or lower thread
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B57/00—Loop takers, e.g. loopers
    • D05B57/26—Bobbin holders or casings; Bobbin holder or case guards; Bobbin discharge devices
    • D05B57/265—Bobbin holders or casings; Bobbin holder or case guards; Bobbin discharge devices for looptakers with vertical axis
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B73/00—Casings
    • D05B73/04—Lower casings
    • D05B73/12—Slides; Needle plates

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

1280070 Thread cutter G M PFAFF AG 14 Aug 1970 [16 Aug 1969] 39166/70 Heading D1G A thread cutting device on a lock stitch sewing-machine having a looptaker 16 rotatable in a horizontal plane, a bobbin housing 19, 20 held from rotation by a finger 22 thereon and having thread outlet 35 below the plane of the upper surface of the bobbin housing, the device comprising a thread catcher 48 co-operating with a cutter 54 and the tip of the catcher being movable between the needle and the retaining finger of the housing. A bearing plate 45 is provided with concentric arcuate grooves 46, 47 which are eccentric of the looptaker, the former groove serving as a guide for the thread catcher 48 provided with a recess forming a barbed hook; the groove 47 receiving a movable arcuate cutter 54 and a thread guide 64. The thread catcher is engaged by a pin 54 and the cutter and guide by a pin 61, the pins being mounted on linkage 72, 74, 76, 80 operated either by mechanism connectible with the main shaft of the machine or, as shown by an electromagnet 78. A spring 69 clamps the looptaker thread to the underside of plate 45. The severing device is operated at the end of the stitched seam. Bobbin cases. The bobbin case is in two parts 19, 20 the lower part 19 providing the retaining finger 22 and a stud (30) for a lifter (31). The upper part provides an arm (37) with an opening 38 for receiving the thread from a guide 40. In another embodiment (Fig. 7 not shown) the tension spring (134) has a cranked end received in a recess (140) which forms a thread guide. Below the stud (130) on the lower part (119) is a rib 137 having an opening (138) constituting a thread guide.
GB39166/70A 1969-08-16 1970-08-14 Improvements in or relating to sewing machines Expired GB1280070A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691941681 DE1941681A1 (en) 1969-08-16 1969-08-16 Thread cutting device on lockstitch sewing machines

Publications (1)

Publication Number Publication Date
GB1280070A true GB1280070A (en) 1972-07-05

Family

ID=5742941

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39166/70A Expired GB1280070A (en) 1969-08-16 1970-08-14 Improvements in or relating to sewing machines

Country Status (3)

Country Link
US (1) US3658021A (en)
DE (1) DE1941681A1 (en)
GB (1) GB1280070A (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3776161A (en) * 1972-08-09 1973-12-04 Singer Werke Gmbh Thread trimming device for lockstitch sewing machines
US3867892A (en) * 1974-05-09 1975-02-25 Singer Co Underbed thread trimmer for chainstitch sewing machines
US3895591A (en) * 1974-10-17 1975-07-22 Singer Co Thread cutting device
DE2632362C2 (en) * 1976-07-17 1978-05-03 Pfaff Industriemaschinen Gmbh, 6750 Kaiserslautern Thread cutting device on sewing machines
IT1126288B (en) * 1977-09-27 1986-05-14 Necchi Spa THREAD CUTTER DEVICE IN SEWING STITCHED MACHINES
US4181088A (en) * 1978-03-30 1980-01-01 The Singer Company Underbed thread trimmer for sewing machines
US4235179A (en) * 1979-07-19 1980-11-25 The Singer Company Underbed thread trimmer picking arm
DE8032365U1 (en) * 1980-12-05 1981-07-16 Kochs Adler Ag, 4800 Bielefeld NEEDLE GUIDE OF A SEWING MACHINE
DE8329216U1 (en) * 1983-10-10 1984-01-05 Pfaff Industriemaschinen Gmbh, 6750 Kaiserslautern THREAD GUARD FOR SEWING, EMBROIDERY AND TUFTING MACHINES OR THE LIKE
DE4009203A1 (en) * 1990-03-22 1991-10-24 Duerkopp Adler Ag HORIZONTAL LEVEL ROTATING GRIPPER OF A DOUBLE-STEP-STITCH SEWING MACHINE
DE4014554C1 (en) * 1990-05-07 1991-08-29 Pfaff Ag G M Bobbin capsule for multi-needle sewing machine - has 1st spring to give looper thread tension and 2nd spring to receive slack thread part
DE4129558C2 (en) * 1990-09-06 1996-05-23 Brother Ind Ltd pattern sewing machine
JPH04117993A (en) * 1990-09-07 1992-04-17 Brother Ind Ltd Sewing machine
EP0491088A1 (en) * 1990-12-17 1992-06-24 Hirose Manufacturing Company Limited Rotary hook for sewing machines
DE19722395C1 (en) * 1997-05-28 1998-08-06 Pfaff Ag G M Double lock:stitch sewing machine thread cutter
US5921192A (en) * 1998-01-22 1999-07-13 Bakron Corporation Bobbin assembly with structure for severing improperly routed thread
DE10123075C1 (en) 2001-05-11 2002-10-10 Duerkopp Adler Ag Thread cutter, at a double lockstitch sewing machine, has a thread drawing blade positioned very close to the fabric support surface, to leave a very short cut end when the thread is severed
US7591227B2 (en) * 2007-11-20 2009-09-22 Alberto Landoni Systems and methods for thread handling and/or cutting
DE102008030620B3 (en) * 2008-06-24 2009-12-24 Pfaff Industrie Maschinen Ag Method and device for cutting the needle and the hook thread on lockstitch sewing machines with gripper rotating in a horizontal plane

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2163994A (en) * 1937-02-19 1939-06-27 Fischer Jakob Josef Device for cutting and clamping the needle thread of sewing machines
US2866425A (en) * 1955-06-14 1958-12-30 Union Special Machine Co Lockstitch sewing machines
DE1485265C2 (en) * 1962-09-18 1975-12-11 G. M. Pfaff Ag, 6750 Kaiserslautern Thread cutting device on sewing machines
US3503355A (en) * 1967-10-10 1970-03-31 Kochs Adler Ag Thread cutting device for lockstitch sewing machines

Also Published As

Publication number Publication date
DE1941681A1 (en) 1971-06-09
US3658021A (en) 1972-04-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years