GB1311755A - Contactless synchronising device for sewing machines - Google Patents

Contactless synchronising device for sewing machines

Info

Publication number
GB1311755A
GB1311755A GB2208470A GB2208470A GB1311755A GB 1311755 A GB1311755 A GB 1311755A GB 2208470 A GB2208470 A GB 2208470A GB 2208470 A GB2208470 A GB 2208470A GB 1311755 A GB1311755 A GB 1311755A
Authority
GB
United Kingdom
Prior art keywords
machine
slot
cutter
thread
brake
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
GB2208470A
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.)
Frankl and Kirchner GmbH and Co KG
Original Assignee
Frankl and Kirchner GmbH and Co KG
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 Frankl and Kirchner GmbH and Co KG filed Critical Frankl and Kirchner GmbH and Co KG
Publication of GB1311755A publication Critical patent/GB1311755A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices
    • D05B69/22—Devices for stopping drive when sewing tools have reached a predetermined position
    • D05B69/24—Applications of devices for indicating or ascertaining sewing-tool position
    • 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
    • D05B73/00—Casings
    • D05B73/04—Lower casings
    • D05B73/12—Slides; Needle plates

Landscapes

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

Abstract

1311755 Controlling sewing machines FRANKL & KIRCHNER FABRIK FUR ELEKTROMOTOREN UND ELEKTRISCHE APPARATE 7 May 1970 [17 May 1969] 22084/ 70 Heading D1G For controlling stopping of and a needle thread cutter of a sewing machine a contactless synchronising device is provided comprising two rotating shutters, the first shutter 5 having a slot 22 which stops the machine in a low needle position and the second shutter 6 having a first slot 18 which causes a thread cutter to be brought under the stitch plate and a second displaced slot 19 which causes stopping of the machine in an upper position and withdrawal of the cutter to cut the needle thread. The shutter discs 5 and 6 are adjustably mounted on a shaft 2 which is driven from the machine shaft. The signals produced by the slots or other means at the receiver 17 of an optical, electrical or electronic indicating instrument control a multi-stage relay arrangement controlling the thread cutter magnets MI 1 and MI 2 , and a clutch and brake in the machine drive. On actuation of a switch key (T) the brake is applied and released by time-delay relays and the clutch then operated to rotate the machine slowly. When the slot 18 indicates the high needle position the magnet MI 1 is energised moving the cutter blade under the stitch plate and when the slot 19 actuates the receiver 17 the brake is re-applied, the magnet MI 2 is energised to withdraw the cutter blade to cut the needle thread and after a further time delay the brake is released to permit manual adjustment of the needle position. The magnets MII and MIII respectively release the needle thread tension during the cutting operation and draw the cut thread to one side of the presser foot so that it is drawn to the underside of a fabric.
GB2208470A 1969-05-17 1970-05-07 Contactless synchronising device for sewing machines Expired GB1311755A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1925301A DE1925301C3 (en) 1969-05-17 1969-05-17 Sewing machine with thread cutter

Publications (1)

Publication Number Publication Date
GB1311755A true GB1311755A (en) 1973-03-28

Family

ID=5734496

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2208470A Expired GB1311755A (en) 1969-05-17 1970-05-07 Contactless synchronising device for sewing machines

Country Status (10)

Country Link
US (1) US3659538A (en)
AT (1) AT313690B (en)
BE (1) BE750285A (en)
CH (1) CH511314A (en)
DE (1) DE1925301C3 (en)
DK (1) DK137247B (en)
FR (1) FR2047667A5 (en)
GB (1) GB1311755A (en)
NL (1) NL7006883A (en)
NO (1) NO128718B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788250A (en) * 1970-06-19 1974-01-29 Yamamoto Electric Ind Co Ltd System for stopping sewing machine needle at predetermined position
US3990374A (en) * 1975-03-28 1976-11-09 Frankl & Kirchner Contactless synchronizer for sewing machines
DE3133333C2 (en) * 1981-08-22 1986-08-14 Aktiengesellschaft Adolph Saurer, Arbon Shuttle embroidery machine
RO82939A2 (en) * 1983-01-24 1985-10-31 Institutul De Cercetare Stiintifica Si Inginerie Tehnologica Pentru Industria Electrotehnica,Ro ELECTRONIC CONTROL INSTALLATION OF CONTROL SYSTEMS FOR ACTUATION SYSTEMS WITH ELECTROMAGNETIC COUPLINGS FOR SEWING AND / OR FASTENING MACHINES
DE3600938C1 (en) * 1986-01-15 1987-08-06 Pfaff Haushaltmasch Impulse generator for a sewing machine drive
JPH0229286A (en) * 1988-07-19 1990-01-31 Mitsubishi Electric Corp Speed control device for sewing machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3157261A (en) * 1961-02-10 1964-11-17 Necchi Spa Programmed start and stop for a machine such as a sewing machine
CH408616A (en) * 1961-11-20 1966-02-28 Jong & De Vlieger Machinehande Sewing machine, in particular industrial sewing machine
US3477399A (en) * 1969-02-19 1969-11-11 Quick Rotan Becker & Co Switching device for a sewing machine

Also Published As

Publication number Publication date
DE1925301A1 (en) 1970-11-19
DK137247C (en) 1978-07-10
US3659538A (en) 1972-05-02
DE1925301B2 (en) 1975-05-22
DK137247B (en) 1978-02-06
CH511314A (en) 1971-08-15
AT313690B (en) 1974-02-25
FR2047667A5 (en) 1971-03-12
DE1925301C3 (en) 1976-01-02
NO128718B (en) 1974-01-02
NL7006883A (en) 1970-11-19
BE750285A (en) 1970-10-16

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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