GB980409A - A driving device in an electric sewing machine - Google Patents

A driving device in an electric sewing machine

Info

Publication number
GB980409A
GB980409A GB4907163A GB4907163A GB980409A GB 980409 A GB980409 A GB 980409A GB 4907163 A GB4907163 A GB 4907163A GB 4907163 A GB4907163 A GB 4907163A GB 980409 A GB980409 A GB 980409A
Authority
GB
United Kingdom
Prior art keywords
wheel
flywheel
driving
motor
transmission
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
GB4907163A
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.)
Mefina SA
Original Assignee
Mefina SA
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 Mefina SA filed Critical Mefina SA
Publication of GB980409A publication Critical patent/GB980409A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices
    • D05B69/10—Electrical or electromagnetic drives
    • D05B69/12—Electrical or electromagnetic drives using rotary electric motors
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices
    • D05B69/30—Details
    • D05B69/34—Hand-wheel clutches

Landscapes

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

Abstract

980,409. Friction gearing; securing flywheels on shafts. MEFINA S.A. Dec. 12, 1963 [May 24, 1963], No. 49071/63. Headings F2L, F2Q and F2U. [Also in Division D1] In a sewing machine, a transmission wheel is mounted on a movable support acted upon by a force tending to maintain the transmission wheel in contact both with a driving wheel on the spindle of an electric motor and with the flywheel of the machine, the arrangement being such that when the motor operates, the friction between the driving and transmission wheels tends to move the transmission wheel towards the driving wheel and flywheel, while manual rotation of the flywheel, when the driving wheel is stopped, tends to move the transmission wheel away from the driving wheel. As shown, a transmission wheel 13, having a rubber tyre 14, is pivoted at 15 to one end of a bar 16 formed with an axial slot slidably receiving a pin 20 carried by the casing of an electric motor 3. A bar 21 is pivoted at one end on pin 20, and carries at its other end a pin 22 slidably received in an axial slot in bar 16. A U-shaped spring 26, connected between pin 22 and the flanged end 30 of bar 16, serves to bias wheel 13 against both a driving wheel 12 on the spindle 11 of motor 3 and also against a flywheel 8 on the arm shaft 4 of the machine. Rotation of wheel 12 in the driving direction, indicated by the arrow thereon, thereby tends to move wheel 13 towards wheel 12 and the flywheel 8, while manual rotation of the flywheel in the driven direction, indicated by an arrow 31 thereon, tends, when the motor is inoperative, to separate wheel 13 from wheel 12. A knurled hand wheel 10, screwed on to the end of shaft 4, is adapted, when rotated in one direction, to force a sleeve 9, rigid with flywheel 8, against a sleeve 7 rigid with shaft 4 for coupling the latter to flywheel 8. Rotation of hand wheel 10 in the opposite direction serves to uncouple the flywheel. It is stated that in an alternative arrangement, motor 6 would be pivotally mounted and biased towards transmission wheel 13, which would then be carried by a pivotally mounted support.
GB4907163A 1963-05-24 1963-12-12 A driving device in an electric sewing machine Expired GB980409A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH646863A CH388084A (en) 1963-05-24 1963-05-24 Drive device for electric sewing machine

Publications (1)

Publication Number Publication Date
GB980409A true GB980409A (en) 1965-01-13

Family

ID=4310098

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4907163A Expired GB980409A (en) 1963-05-24 1963-12-12 A driving device in an electric sewing machine

Country Status (4)

Country Link
BE (1) BE640395A (en)
CH (1) CH388084A (en)
ES (1) ES294680A1 (en)
GB (1) GB980409A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162279A (en) * 1983-12-16 1986-01-29 Zeiss Stiftung Gear train including a connecting/disconnecting arrangements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162279A (en) * 1983-12-16 1986-01-29 Zeiss Stiftung Gear train including a connecting/disconnecting arrangements

Also Published As

Publication number Publication date
ES294680A1 (en) 1964-02-16
BE640395A (en) 1964-03-16
CH388084A (en) 1965-02-15

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