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US3408882A - Motor treadle handwheel - Google Patents

Motor treadle handwheel Download PDF

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Publication number
US3408882A
US3408882A US590078A US59007866A US3408882A US 3408882 A US3408882 A US 3408882A US 590078 A US590078 A US 590078A US 59007866 A US59007866 A US 59007866A US 3408882 A US3408882 A US 3408882A
Authority
US
United States
Prior art keywords
motor
pulley
treadle
driven
handwheel
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 - Lifetime
Application number
US590078A
Other languages
English (en)
Inventor
Edward W Bialy
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
Priority to US590078A priority Critical patent/US3408882A/en
Priority to FR124660A priority patent/FR1543577A/fr
Priority to GB48209/67A priority patent/GB1134440A/en
Priority to CH1499067A priority patent/CH464663A/de
Application granted granted Critical
Publication of US3408882A publication Critical patent/US3408882A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices
    • D05B69/30—Details
    • D05B69/34—Hand-wheel clutches

Definitions

  • the apparatus of the present invention has essentially the same capability as the apparatus of US. Patent No. 3,224,398, i.e., ready selectability between motor and treadle operation, its principle feature is that it obtains such capability in a very simple way, whereby manufacturing expense and ultimate high price to the consumer are obviated.
  • the invention provides a sewing machine handwheel assembly having two coaxial pulley members for accommodating motor-driven and treadledriven belts respectively.
  • the treadle-driven pulley is directly secured to the sewing machine arm shaft, while the motor-driven belt is coupled to the arm shaft through a spirfal spring that interconnects the pulleys.
  • the motordriven belt is usually kept continually on its pulley; and the treadle-driven belt, though usually off its pulley, may if desired, be slipped easily on its pulley when electric power is unavailable or not applied to the electric motor.
  • the motordriven pulley When power is applied to the electric motor, the motordriven pulley is directly driven and, through the tightening of the windings of the spiral spring, couples to rotate the other pulley, and so too the arm shaft. With the electric motor disabled, however. the treadle-driven belt may he slipped on its pulley to drive directly the arm shaft.
  • termined wayr v a The bracket arm shaft'16 is rotatably supported a little electric motor drive to foot treadle drive in a matter of A a few seconds without the use of tools or' exchange parts.
  • Another object of the invention is to provide a sewing machine handwheel assembly that employs a spiral spring to interconnect two pulleys thereof, one pulley being adapted to be motor-driven and the other being adapted to
  • FIG. 1 is an elevational view, partly in section, illustrating apparatus embodying the invention.
  • FIG. 2 is a view illustrating in detail the assembly of a handwheel according to the invention.
  • FIG. 3 is an exploded View of, and useful in describing, the handwheel of the invention.
  • a sewing machine bracket arm 10 is supported by a standard 12 above a work-supporting bed 14.
  • the bracket arm 10 and standard 12 are hollow and contain mechanisms for driving thebracket arm shaft 16.
  • the bracket arm shaft 16 is adapted to be unidirectionally driven, i.e., in order for the sewing machine to sew, all of the sewing instrumentalities must cooperate in a known and predein from its end in a bushing 18 serving as a journal bearing, and such bushing is fixedly housed within a flange 20 forming part of the bracket arm 10.
  • Holes 22, 24 in the fiange20 serve to permit easy lubrication of the bearing surfaces between the bushing 18 and the bracket arm shaft .16.
  • the sewing machine handwheel assembly otherwise called a balance wheel assembly, comprises three main parts: a first pulley member 36, a second pulley member 38, and a spiral spring 40.
  • the pulley member 36 has a central aperture 41 and is provided with a hub 45.
  • the pulley member 38 is provided with a hub 46 that extends from an annular recess 48.
  • the hub 46 is provided with a central aperture 50, and is so adapted to slide onto the hub that the end 52 of the hub 46 abuts against the shoulder 54 formed by the hub levels 42, 44.
  • the outer diameter 56 of the hub 46 is so sized that it provides a continuous annular radial level with the level 42.
  • the pulley belt 62 is driven by an electric motor 90 that is supported by a bracket assembly 92, such motor 90 being provided with a pulley wheel 94 secured to its shaft 96; and the motor is excitable by means of electric leads 98.
  • the bracket arm shaft 16 On interruption of electrical power to the leads 98 of the motor 90, and with the treadle belt 66 on its pulley member 36, the bracket arm shaft 16 may again be rotated by directly turning the pulley member 36 in the same direction as the above-noted given direction by treadle or foot power. This causes the spring 40 to loosen its grip on the hubs 45, 46, and as such the pulley member 38 and the motor shaft 96 do not get driven when the pulley member 36 is treadle-driven. This assures the long life of the motor by preventing wear of the motor parts, viz. brushes, bearings, etc., when the motor is not in actual use.
  • a unidirectional arm shaft an electric motor having an output shaft, a handwheel assembly comprising first and second substantially coaxially disposed driving means, one of said driving means being provided with a hub, said first driving means being a A V pulley adapted to be secured directly to said arm shaft, a treadle belt adapted to be selectively placed on said pulley for directly driving said arm shaft in a given direction, a spiral spring coaxially supported on said hub and interconnecting said first and second driving means, the turns of said spiral spring being always in the same direction from one end of said spring to the other end of said spring, said spiral spring being so wound that rotation of said first driving means in said given direction tends to loosen said spring on said hub and rotation of said second driving means in that same given direction tends to tighten said spring on said hub, and normally engaged means interconnecting said second driving means with said motor shaft for driving said second driving means in said given direction, whereby when said treadle belt drives said first means in said given direction, said arm shaft also gets driven in that given direction
  • each of said driving means is provided with a hub, and wherein said spiral spring is substantially tightly wound about both said hubs.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US590078A 1966-10-27 1966-10-27 Motor treadle handwheel Expired - Lifetime US3408882A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US590078A US3408882A (en) 1966-10-27 1966-10-27 Motor treadle handwheel
FR124660A FR1543577A (fr) 1966-10-27 1967-10-17 Dispositif d'entraînement d'une machine à coudre et machine en comportant application
GB48209/67A GB1134440A (en) 1966-10-27 1967-10-24 Sewing machine
CH1499067A CH464663A (de) 1966-10-27 1967-10-26 Vorrichtung zum Antreiben der Armwelle in einer Nähmaschine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US590078A US3408882A (en) 1966-10-27 1966-10-27 Motor treadle handwheel

Publications (1)

Publication Number Publication Date
US3408882A true US3408882A (en) 1968-11-05

Family

ID=24360785

Family Applications (1)

Application Number Title Priority Date Filing Date
US590078A Expired - Lifetime US3408882A (en) 1966-10-27 1966-10-27 Motor treadle handwheel

Country Status (3)

Country Link
US (1) US3408882A (de)
CH (1) CH464663A (de)
GB (1) GB1134440A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3490708A (en) * 1967-02-18 1970-01-20 Aisin Seiki Declutching device in a sewing machine
US4182248A (en) * 1977-08-08 1980-01-08 Klages Arthur C Fabric puller
US4259915A (en) * 1980-08-11 1981-04-07 The Singer Company Treadle drive for electrified sewing machine
DE102012006136A1 (de) * 2012-03-26 2013-09-26 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Scheibenbremse für ein Nutzfahrzeug

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1055905A (en) * 1912-05-17 1913-03-11 Spring Motor Fan Company Spring-clutch.
US1792818A (en) * 1927-12-16 1931-02-17 Singer Mfg Co Sewing-machine-motor controller
US2742126A (en) * 1955-03-01 1956-04-17 Robert B Morton Unidirectional clutch mechanism
US2836276A (en) * 1952-07-25 1958-05-27 Heimann Karl Willi Electric sewing machine drives
US3292453A (en) * 1964-05-08 1966-12-20 Werner Recknagel Litho printing machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1055905A (en) * 1912-05-17 1913-03-11 Spring Motor Fan Company Spring-clutch.
US1792818A (en) * 1927-12-16 1931-02-17 Singer Mfg Co Sewing-machine-motor controller
US2836276A (en) * 1952-07-25 1958-05-27 Heimann Karl Willi Electric sewing machine drives
US2742126A (en) * 1955-03-01 1956-04-17 Robert B Morton Unidirectional clutch mechanism
US3292453A (en) * 1964-05-08 1966-12-20 Werner Recknagel Litho printing machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3490708A (en) * 1967-02-18 1970-01-20 Aisin Seiki Declutching device in a sewing machine
US4182248A (en) * 1977-08-08 1980-01-08 Klages Arthur C Fabric puller
US4259915A (en) * 1980-08-11 1981-04-07 The Singer Company Treadle drive for electrified sewing machine
DE102012006136A1 (de) * 2012-03-26 2013-09-26 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Scheibenbremse für ein Nutzfahrzeug

Also Published As

Publication number Publication date
CH464663A (de) 1968-10-31
GB1134440A (en) 1968-11-20

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