GB1282153A - A sewing machine - Google Patents

A sewing machine

Info

Publication number
GB1282153A
GB1282153A GB4615069A GB4615069A GB1282153A GB 1282153 A GB1282153 A GB 1282153A GB 4615069 A GB4615069 A GB 4615069A GB 4615069 A GB4615069 A GB 4615069A GB 1282153 A GB1282153 A GB 1282153A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
contacts
foot
needle
relay
machine
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
GB4615069A
Inventor
Naotake Ito
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.)
Brother Industries Ltd
Original Assignee
Brother Industries Ltd
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

Links

Classifications

    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B69/00Driving-gear; Control devices
    • D05B69/22Devices for stopping drive when sewing tools have reached a predetermined position

Abstract

1282153 Sewing machine driving BROTHER KOGYO KK 18 Sept 1969 [21 Sept 1968] 46150/69 Heading DIG A sewing machine comprises a needle 13, a pressor foot 14, operating means 67, 68 for controlling the lifting and lowering of the presser foot, power transmitting means 16 for driving the needle and including a clutch 40, 41, 47, a treadle 24 for engaging the clutch to drive the needle, a needle positioner 32 and an electric control means, for controlling the operating means and the needle positioner, energised through a switch 33 operable in response to release of the treadle, the control means including a timer providing a time delay between release of the pedal and lifting of the presser foot to cause the lifting after the needle has been stopped at a predetermined position. The control means comprise an electrical circuit Fig. 7 depicted in several conditions in Figs. 8-15, (not shown) which includes relays R2 and R3 having contacts r21, r31 in series with a coil 70 of an electromagnetic valve 68 controlling the raising of the presser foot. Starting, presser foot raising and lowering Preparatory to sewing lines 90, 93, 99 and 100 are energised with high speed motor 16 rotating, coil 70 is energised through normally closed contacts r21, r22, to raise the presser foot below which the work is then positioned. When the pedal is partially depressed switch 33 opens and the foot is lowered. Further depression of the pedal actuates the clutch to cause the high speed motor 16 to drive the machine. Stopping at lower position, presser foot raising When the treadle is released switch 33 closes and relay R3 is energised through the N.C. contact r12 and the 'needle down' contact 84s of the needle positioner thereby closing N.O. contacts r32 and r34 and opening N.C. contacts r31 r33. Low speed motor 17a now runs and is engaged with the machine to drive it at low speed. Relay R2 is connected in series with capacitor 95 and is thus excited only for as long as is required to stop the machine at the lower position, N.C. contact r21 opening meanwhile. When the positioner has rotated to open contact 84s relay R3 is de-energised, contacts r32 and r34 opening and contacts r31 and r33 closing. Relay R5 is held on momentarily by capacitor 98 to maintain contact r51 momentarily closed to provide field excitation and dynamic braking by the shorted armature circuit of 17a. R2 is excited by charging current through capacitor 95, so the foot remains lowered until, with the machine stopped and capacitor 95 charged, contacts r21 close to energise coil 70 and raise the foot. Stopping at needle raised position, thread cutting. Operation of a knee lever 19 by the operator closes switch 20 to energise relay R1 and be held on by its contacts r11. N.C. contacts r12 open and N.O. contacts r13 close. Relay R3 is excited through the 'needle up' contact 83s and relay R5 is excited. The low speed motor now drives the machine. As contacts 81s close relay R4 is excited and coil 78 is energised to actuate pneumatic mechanism to cause thread cutter blade 74 to rotate and catch the thread.
GB4615069A 1968-09-21 1969-09-18 A sewing machine Expired GB1282153A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6861968 1968-09-21

Publications (1)

Publication Number Publication Date
GB1282153A true true GB1282153A (en) 1972-07-19

Family

ID=13378939

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4615069A Expired GB1282153A (en) 1968-09-21 1969-09-18 A sewing machine

Country Status (3)

Country Link
US (1) US3585950A (en)
DE (1) DE1947875A1 (en)
GB (1) GB1282153A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2285272A (en) * 1993-12-28 1995-07-05 Juki Kk Sewing machine drive
GB2285271A (en) * 1993-12-28 1995-07-05 Juki Kk Sewing machine drive
US5522330A (en) * 1993-12-28 1996-06-04 Juki Corporation Drive device for a sewing machine
US8763543B2 (en) 2008-06-26 2014-07-01 Vsm Group Ab Mechanically operated presser foot lift arrangement and a sewing machine comprising the arrangement
US8833281B2 (en) 2009-06-01 2014-09-16 Vsm Group Ab Texture hoop fixture
US8925473B2 (en) 2007-11-09 2015-01-06 Vsm Group Ab Thread cut with variable thread consumption in a sewing machine
US9631304B2 (en) 2013-03-15 2017-04-25 Singer Sourcing Limited Llc Variable timing system of a sewing machine and method for selectively adjusting a timing of such a system

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738297A (en) * 1971-06-21 1973-06-12 Elettromeccania Sas Mazzini Mo Electronic control arrangement for the needle and threadcutter in an industrial sewing machine
JPS5543799B2 (en) * 1973-05-30 1980-11-08
JPH0142715B2 (en) * 1985-11-05 1989-09-14 Brother Ind Ltd
US7883451B2 (en) * 2006-04-14 2011-02-08 Treadwell Corporation Methods of applying treadle stimulus
WO2009029020A1 (en) * 2007-08-30 2009-03-05 Vsm Group Ab Sewing macine modification tools
WO2009029019A1 (en) * 2007-08-30 2009-03-05 Vsm Group Ab Positioning of stitch data objects
WO2009085005A1 (en) * 2007-12-27 2009-07-09 Vsm Group Ab Sewing machine having a camera for forming images of a sewing area
CN102277696B (en) 2010-06-09 2015-03-11 Vsm集团股份公司 Feeder movement compensation
US8960112B2 (en) 2013-02-01 2015-02-24 Vsm Group Ab Stitching system and method for stitch stop embellishments

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170424A (en) * 1952-07-22 1965-02-23 Singer Co Positional control systems
US2970557A (en) * 1955-03-05 1961-02-07 Schwab Brunhilde Control device for the operation of sewing machines
US2928362A (en) * 1955-06-01 1960-03-15 Pfaff Ag G M Electrical control system for group stitch sewing machines and the like
US2914010A (en) * 1957-01-17 1959-11-24 Clinton Ind Automatic thread cutter and needle positioner
FR1274781A (en) * 1959-10-31 1961-10-27 Quick Elektromotoren Werk G M A drive and machine control Sewing
US3157261A (en) * 1961-02-10 1964-11-17 Necchi Spa Programmed start and stop for a machine such as a sewing machine
US3186366A (en) * 1962-02-06 1965-06-01 American Safety Table Co Needle positioning control mechanism
US3482535A (en) * 1967-06-12 1969-12-09 Tokyo Juki Industrial Co Ltd Cyclic sewing machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2285272A (en) * 1993-12-28 1995-07-05 Juki Kk Sewing machine drive
GB2285271A (en) * 1993-12-28 1995-07-05 Juki Kk Sewing machine drive
US5522330A (en) * 1993-12-28 1996-06-04 Juki Corporation Drive device for a sewing machine
US8925473B2 (en) 2007-11-09 2015-01-06 Vsm Group Ab Thread cut with variable thread consumption in a sewing machine
US8763543B2 (en) 2008-06-26 2014-07-01 Vsm Group Ab Mechanically operated presser foot lift arrangement and a sewing machine comprising the arrangement
US8833281B2 (en) 2009-06-01 2014-09-16 Vsm Group Ab Texture hoop fixture
US9631304B2 (en) 2013-03-15 2017-04-25 Singer Sourcing Limited Llc Variable timing system of a sewing machine and method for selectively adjusting a timing of such a system

Also Published As

Publication number Publication date Type
DE1947875A1 (en) 1970-07-30 application
US3585950A (en) 1971-06-22 grant

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee