US2983455A - Bobbin winder mechanism for sewing machines - Google Patents

Bobbin winder mechanism for sewing machines Download PDF

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Publication number
US2983455A
US2983455A US759358A US75935858A US2983455A US 2983455 A US2983455 A US 2983455A US 759358 A US759358 A US 759358A US 75935858 A US75935858 A US 75935858A US 2983455 A US2983455 A US 2983455A
Authority
US
United States
Prior art keywords
spindle
bobbin
drive shaft
bobbin winder
spring
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
US759358A
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English (en)
Inventor
Edward J Herbst
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 US759358A priority Critical patent/US2983455A/en
Priority to DES31724U priority patent/DE1804569U/de
Priority to CH7776859A priority patent/CH384342A/de
Application granted granted Critical
Publication of US2983455A publication Critical patent/US2983455A/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
    • D05B59/00—Applications of bobbin-winding or -changing devices; Indicating or control devices associated therewith

Definitions

  • the present invention relates to bobbin winder mechanisms for sewing machines and has for an object to provide a simplified bobbin winder mechanism which is economical, dependable, durable, and easy to operate.
  • Fig. l is a fragmentary top plan view of a sewing machine having a bobbin winder mechanism in accordance with this invention.
  • Fig. 2 is a sectional view taken substantially on the line 22 of Fig. 1.
  • Fig. 3 is a sectional view taken substantially on the line 3-3 of Fig. l, but with a bobbin mounted on its supporting post and the device in bobbin winding position.
  • Fig. 4 is a fragmentary bottom plan view of the bobbin winder mechanism of Fig. l.
  • the bobbin winder mechanism in accordance with this invention is particularly designed to be used in a sewing machine having a built-in vertical axis drive motor, as illustrated, for example, in the United States patent of Peets, No. 2,617,375.
  • the bobbin winder mechanism comprises asleeve4 mounted in a bore 5 in the cover plate 1 for rotation on an axis aligned with the axis of the drive shaft 2.
  • the sleeve 4 is provided with a laterally extending flange 6 that limits the vertical position of the sleeve 4 in the bore 5.
  • the sleeve 4 has a bottom wall -7 which, as seen in Fig.
  • the leading portions of the lugs 10 are formed with downwardly extending projections 11 which, at their 'leading edges, are provided with drive faces 12 arranged substantially parallel to the axis of the spindle.
  • a coupler 13 which, like the spindle 9, is preferably formed of a molded plastic material such as nylon, is loosely mounted on the upper end of the drive shaft 2 for rotation with-and for endwise movement relatively thereto.
  • a pin 14 extending diametrically 2,983,455 Patented May 9, 1961 17 are in engagement, rotation will be imparted to the,
  • the spindle 9 is biased upwardly to Withdraw thelugsj 10 out of driving relation with the lugs by a compres-v sion spring 18 seated in a central bore 19 extending in 1 wardly from the bottom of the spindle and acting between the end of the bore 19 and the bottom wall 7 of the sleeve 4.
  • a latching lever 20 mounted on the cover plate 1 for pivotal movement about an axis parallel'to the axis of the spindle 9 by a pivot screw 21.
  • the lever 20 includes a latching finger 22 and it is biased about the pivot axis thereof to hold the latching finger 22 in engagement with the periphery of the spindle 9 by a torsion spring 23 seated in an annular groove 24 in the cover plate 1 and anchored at its opposite ends in the lever 20 and the cover plate 1.
  • the spindle 9 is formed with a pair of shoulders comprising an upper shoulder 25 and a lower shoulder 26.
  • the shoulder 26 is spaced outwardly radially of the spindle 9 from the shoulder 25 and there is provided a smooth inclined surface 27 between the shoulders.
  • shoulders 25 and 26 are adapted to cooperate with the latching finger 22 to hold the spindle 9 down against the action of the spring 18.
  • the shoulder 25 is arranged so that when it is in engagement with the latching finger 22, as illustrated in Fig. 3, the drive faces 12 and 17- are in drive relation and the spindle 9 rotates with the drive shaft 2.
  • the shoulder 26 is arranged so that when it is in engagement with the latching finger 22, as illustrated in Fig. 2, the drive faces 12 and 17 are out of em gagement and the bobbin winder is inoperative.
  • the upper end of the spindle 9 is formed with a post 28 upon which a bobbin 29 is mounted.
  • the post is slotted endwise, as
  • the lever 20 includes a tripping arm 30 that engages the thread on the bobbin.
  • the bobbin winder is normally in the inoperative position, as illustrated in Fig. 2.
  • a bobbin 29 is placed on the post 28 and the spindle 9 is forced downwardly against the action of the spring 18, the lever 20 under the action of the spring 23 is pivoted to move the latching finger 22 over the upper shoulder 25 of the spindle 9 and thus hold the spindle down.
  • the drive faces 12. on the lugs 10 move into the plane of rotation of the drive faces 17 of the coupler 13.
  • the spindle 9 will be rotated with it to wind thread on the bobbin 29.
  • the resilient mounting of the coupler 13 on the drive shaft 2 is designed to preclude the possibility that the spindle 9 could not be moved downwardly into operative relation with the coupler 13 as would occur in the event that the projections 11 were directly over the lugs 16 of the coupler 13 when the spindle 9 is moved downward: ly.
  • the coupler 13 is forced downwardly against the action of the spring 13a and as it is moved downwardly, the cam action between the pin 14 and slot 15 turns the coupler 13 to'move it relatively to the spindle 9.
  • the spring 13a also acts as a shock absorber upon initiation of rotation of the bobbin winder.
  • the tripping arm 39' is simultaneously moved into the space between the flanges of the bobbin 29.
  • the tripping arm 30 is forced outwardly thereby pivoting the lever 26 againstthe action of the spring 23 and, after a predetermined amount of thread has been wound on the bobbin, moving the latching finger 22 ofi the shoulderi'd.
  • the spindle 9 is then moved upwardly by the spring 13, which movement disengages the drive faces 12 and 17 to, stop the bobbin winder drive and at the same.
  • a sewing machine having a frame, a drive shaft journaled in said frame, and a bobbin winder mechanism comprising a sleeve mounted in said frame for rotation on an axis aligned with the axis of said drive shaft, said sleeve including a bottom wall having an aperture, a bobbin receiving spindle mounted in said sleeve for rotation and for endwise movement and having a lug extending through said aperture for keying said spindle to said sleeve for rotation, a lug upon the end of said drive shaft adjacent to said spindle, cooperating drive faces on said lugs for coupling said spindle to said drive shaft for unitary rotation upon endwise movement of said spindle toward said drive shaft, spring means arranged between said spindle and the bottom wall of said sleeve for biasing said spindle endwise away from said drive shaft.
  • a bobbin winder mechanism for use with a sewing machine having a frame and a drive shaft journaled in the frame, said bobbin winder mechanism comprising a sleeve adapted to be mounted in the frame for rotation on an axis aligned with the axis of. the drive shaft, said sleeve including a bottom wall having an aperture, a hub bin receiving spindle mounted in said sleeve for rotation and for endwise movement and having a lug extending through said aperture for keying said spindle to.
  • said sleeve for rotation, a coupler adapted to be mounted upon the end of the drive shaft adjacent to said spindle and having a lug, cooperating drive faces on said lugs for connecting said spindle to said coupler for unitary rotation upon endwise movement of said spindle toward said coupler, springmeans arranged-between said spindle and the bottom wall of said sleeve for biasing said.
  • a sewing machine having a frame, a. drive shaft journaled in said frame, and a bobbin winder mechanism comprising a bobbin receivingspindle mounted on said frame for rotation and for endwise movement on an axis aligned with the axis 'of said drive shaft, coupling means comprisingopposedlugs on the end of said drive shaft and the adjacent end of said spindle andhaving cooperating drive faces for coupling said spindle to said drive shaft for unitary rotation upon endwise movement of said spindle toward said driveshafhspring means for biasing said spindle endwisej away from said drive shaft to disengage said coupling means, and releasablelatch means for holding said" spindle against.
  • said releasable latch means comprising a lever pivotally mounted on said frame on an axisparallel to the axis of said spindle, means for biasing said lever against said spindle, a first shoulder on said spindle adapted to cooperate with said lever for holding said.
  • said lever includes a bobbin thread engaging arm for pivoting said lever off said first shoulder when the accumulation of thread on the bobbin reaches a predetermined amount, and a smooth outwardly extending surface on said spindle between said first shoulder and said second shoulder for camming said lever away from the axis of'said spindle uponendwise movement of said spindle out of driven relation with said drive shaft for moving said arm away from the bobbin.”

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Sewing Machines And Sewing (AREA)
US759358A 1958-09-05 1958-09-05 Bobbin winder mechanism for sewing machines Expired - Lifetime US2983455A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US759358A US2983455A (en) 1958-09-05 1958-09-05 Bobbin winder mechanism for sewing machines
DES31724U DE1804569U (de) 1958-09-05 1959-09-03 Spuler fuer naehmaschinen.
CH7776859A CH384342A (de) 1958-09-05 1959-09-03 Nähmaschine mit Spuler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US759358A US2983455A (en) 1958-09-05 1958-09-05 Bobbin winder mechanism for sewing machines

Publications (1)

Publication Number Publication Date
US2983455A true US2983455A (en) 1961-05-09

Family

ID=25055357

Family Applications (1)

Application Number Title Priority Date Filing Date
US759358A Expired - Lifetime US2983455A (en) 1958-09-05 1958-09-05 Bobbin winder mechanism for sewing machines

Country Status (3)

Country Link
US (1) US2983455A (de)
CH (1) CH384342A (de)
DE (1) DE1804569U (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670974A (en) * 1970-02-06 1972-06-20 Fritz Gegauf Ag Bernina Nah Ma Releasable winding mechanism for sewing machines
US3741492A (en) * 1970-06-16 1973-06-26 E Johansson Apparatus for winding sewing thread upon bobbins

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259914A (en) * 1980-07-28 1981-04-07 The Singer Company Bobbin winding mechanism for a sewing machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US302926A (en) * 1884-08-05 Charles miehling
US997408A (en) * 1910-09-16 1911-07-11 Walter V Neal Bobbin-winder.
US2056829A (en) * 1933-03-31 1936-10-06 Charles E Colegrove Sewing machine
US2592516A (en) * 1946-10-17 1952-04-08 Willcox & Gibbs Sewing Machine Bobbin winder for sewing machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US302926A (en) * 1884-08-05 Charles miehling
US997408A (en) * 1910-09-16 1911-07-11 Walter V Neal Bobbin-winder.
US2056829A (en) * 1933-03-31 1936-10-06 Charles E Colegrove Sewing machine
US2592516A (en) * 1946-10-17 1952-04-08 Willcox & Gibbs Sewing Machine Bobbin winder for sewing machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670974A (en) * 1970-02-06 1972-06-20 Fritz Gegauf Ag Bernina Nah Ma Releasable winding mechanism for sewing machines
US3741492A (en) * 1970-06-16 1973-06-26 E Johansson Apparatus for winding sewing thread upon bobbins

Also Published As

Publication number Publication date
DE1804569U (de) 1960-01-21
CH384342A (de) 1964-11-15

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JPS5830064Y2 (ja) ボビンの插脱と運動したミシン下糸巻切換装置