US2045340A - Zigzag stitching machine - Google Patents

Zigzag stitching machine Download PDF

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Publication number
US2045340A
US2045340A US754301A US75430134A US2045340A US 2045340 A US2045340 A US 2045340A US 754301 A US754301 A US 754301A US 75430134 A US75430134 A US 75430134A US 2045340 A US2045340 A US 2045340A
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US
United States
Prior art keywords
shuttle
needle bar
housing
lever
rod
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
US754301A
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English (en)
Inventor
Bolter Wilhelm
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.)
Anker Werke AG
Original Assignee
Anker Werke AG
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 Anker Werke AG filed Critical Anker Werke AG
Application granted granted Critical
Publication of US2045340A publication Critical patent/US2045340A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/02—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing with mechanisms for needle-bar movement

Definitions

  • the 'instant invention relates to sewing machines embodying a zigzag stitch forming mecha.- nism.
  • 'I'he object of the invention is to provide such a sewing machine for household purposes which is particularly economical to produce and which however operates simply and with certainty.
  • the use of an oscillating shuttle for such a machine is attained by arranging the shuttle housing so that it executes an oscillating movement coincidentally with the movement of the-needle bar, although in the usual manner they are arranged transversely.
  • Another feature of the invention resides in the regulation of the lateral swinging of the shuttle housing from the same setting elements which adjust the lateral swing of the needle bar.
  • Two diiferent embodiments of the invention are illustrated, namely; one embodiment in which the shuttle housing and thereby the point of the shuttle describes a downwardly directed open arc, and another embodiment in which the shuttle housing and thereby the point thereof describes an upwardly directed open arc.
  • the displacement of the starting position of the lateral swing of the needle is obtained by shifting laterally the pivot point of the grooved block for the stitch regulator, by means of an eccentric, through' half the extent of the maximum width of the stitch.
  • a plate is inserted in the sewing machine arm in which, according to the arrangement in the rst embodii ment, is-provided a rotatable member.
  • a bolt is eccentrically arranged in this rotatable member which transmits the adjusting movement to the groove, in known manner, for the purpose of regulating the size of the stitch. Since the setting 60 lever for determining the direction of the throw' of the needle-bar is connected with the rotatable member and since the setting lever for regulating the width of stitch is mounted on the eccentrically disposed bolt, the setting device may be inserted in the sewing machine arm as a complete unit.
  • a protecting cap is mounted over the setting lever which is screwed upon the plate carrying the setting lever. The opening for the setting lever in this cap is provided at the same time with a. setting device for the setting lever formed according to the invention from a resilient steel yoke for regulating the width of the stitch.
  • Figs. 1-3 The first embodiment of the invention is illustrated in Figs. 1-3, the second embodiment in Figs. 4-7, while Figs. 8-11 show a particularly advantageous form of setting means which may be applied to the sewing machine arm.
  • Figure 1 shows schematically a front View of the rst embodiment of the invention
  • Figure 2 is a plan View of a part of Figure 1, as well as Figure 4,
  • Figure 3 is a sectional view through the ma.- chine at the regulating mechanism, showing the elements thereof in accordance with the first embodiment of the invention
  • Figure 4 is a view corresponding to Figure 1 of the second embodiment of the invention.
  • Figure 5 is a sectional view corresponding to Figure 3 of the second embodiment of the invention.
  • Figure 6 is a front view of the head of the' forked rod shown in Figures 4 and 5.
  • Figure 7 is a diagram showing the control of the width of the stitch according to the embodiment shown in Figures 4-6,
  • Figure 8 is a front view of the arrangement of the setting means
  • Figure 9 is a sectional view along line 9--9y tion illustrated in Figures 1-3, the frame I carrying the needle bar is mounted to pivot about a point 2 and is capable of assuming the designated end positions from the mid-position shown schematically in Figure 2.
  • the lateral swinging of the needle frame is effected by means of forked lever 3, the fork 4 of which embraces an eccentric 8 mounted upon shaft 5.
  • the eccentric 6 is driven in known manner from the top shaft of the sewing machine.
  • the forked rod 3 carries a guide block 2
  • the block 8 is adjustable in known manner by means of an adjusting lever, 9 whereby the extent of the lateral swinging movement of the needle is regulated.
  • the grooved guide block 8 is eccentrically mounted in a bush ID which is rotatably arranged in the machine arm II. l'Ihe bush I0 is connected with a lever I2 which preferably has three positions.
  • a pin I3 is connected with the block 2
  • This pin is furthermore embraced by a longitudinal slot
  • the lower arm of lever I6 is jointedly connected to one end of draft rod I'I, the other end of which engages the shuttle housing I8.
  • the shuttle housing I8 is pivotally mounted upon two pins I9.
  • the pivotal'point of the grooved block 8 may be shifted so that the needle frame I and, together therewith, the shuttle housing I8 execute either an oscillating movement on both sides of their mid-positions or these elements execute an oscillating movement on one or the other side of their mid-positions.
  • the setting lever 9 the extent of the lateral throw of these elements from their midpositions may be regulated in known manner.
  • the needle frame I carrying the needle bar is mounted vto pivot about a point 2 and is capable of assuming the end positions from the indicated mid-position shown in Figure 2.
  • 'Ihe lateral swinging movements of the needle frame I are generated by means of the forked rod 3, the fork 4 of which embraces an eccentric 6 mounted upon shaft 5.
  • the eccentric 6 is driven in known manner from the top shaft of the sewing machine.
  • the forked rod 3 carries in a projection of its fork 4, a block 2
  • the block 8 is adjustable, in known manner, through its bolt 22 by means of setting lever 9, whereby the extent of the lateral swinging movement ofthe needle may be regulated.
  • the bolt 22 connected with the block 8 is'mounted eccentrically in bush
  • the bush .I0 is rigidly connected with lever I2 whereby the former may be adjusted by the latter in different positions. Three settings for the lever I2 are possible, Whereupon from time to time use is made of the midposition setting and either one of the end settings.
  • a pin I3 is connected with the block 2
  • a longitudinal slot I4 (Fig. 4) of a double-armed lever I6 embraces the pin I3.
  • the double-armed lever I6 is pivoted upon pin I5 and isfurthermore jointedly connected with another double-armed lever 23 which is pivoted upon pin 24 and which is jointedly connected with one end of draft rod I'I.
  • the draft rod Il engages with a transverse yoke 25 of a sleeve 26, which is axially shiftable in a bearing 21 cast on the machine plate 28, and which is connected with the actuator 29 of the shuttle so that the latter partakes of the axial shifting movement of the sleeve.
  • is mounted in the bore of the sleeve 26 which is coupled by means of a coupling 32 with a drive shaft 33 for oscillating movement.
  • the transverse yoke 25 is jointedly connected at its lower end with a link 34 rigidly connected with the shuttle housing.
  • the link 34 is furthermore guided by means of a guiding projection 36 on the bearing 21.
  • shuttle housing 35 is swingingly suspended by means of two hanging arms 36 on the underside of the sewing machine plate.
  • the rotatable body I 0 in the novel arrangement disclosed in these figures is illustrated as. rotatably mounted in a plate 3
  • a bolt 33' is rotatably mounted within the rotatable body III and the guide block 8 is rigidly connected with the former.
  • the setting lever 9 is xed upon the front end of bolt 33 and .is built in the form of a resilient steel yoke which in known manner eects an adjustment of the width ofthe zigzag stitch by rotation of the guide block 8.
  • the lever 9 is maintained in its adjusted position by means of a cap or supplementary plate 35 which is screwed into the plate 3i' with screws 34 leaving an opening 36" for the lever 9, which opening is provided with a toothed edge formed by small notches 31.
  • the nose 38 of lever 9 resiliently engages these notches (Figs. 10 and 11).
  • a scale is provided on the outside of plate 35' over the toothed edge, and a projection bent from the lever 9 cooperates therewithl above and illustrated in Figures 8-11 is not limited in its application to a stitch forming mechanism embodying an oscillating shuttle housing,
  • FIG. 9 the mechanism for transmitting the oscillating arrangement shown in the embodiment in Figures 1-3
  • Figures 9 and 10 show a shaft 5 mounted in the sewing machine arm I I on which is xed an'eccentric l which is embraced bythe iork 4 of the forked connecting rod and which furthermore is driven in known manner from the upper shaft of the machine.
  • This fork 4 has, corresponding to the embodiments described above.
  • a zigzag stitch forming mechanism comprising a shuttle housing mounted for oscillatory movement about a horizontal axis perpendicular to the longitudinal axis ot the machine, a shuttle in said housing, means to impart an oscillatory movement to said shuttle, a needle bar, a rod for oscillating said needle bar transversely oi' its axis, and driving means for actuating said rod and for imparting an oscillating movement to said housing concomitantly with the movement of said needle bar.
  • a zigzag stitch forming mechanism comprising a shuttle housing mounted for oscillatory movement about a horizontal axis perpendicular ⁇ to the longitudinal axis of the machine, a shuttle in said housing. means to impart an oscillatory movement to said shuttle, a needle bar, an actuating rod for laterally oscillating said needle bar, driving means for actuating said rod and for imparting an oscillating movement to said housing concomitantly with the movement of said needle bar, and common regulating means for controlling the oscillating movement of said needle bar and said shuttle housing.
  • said commion regulating means comprises a rotatable member disposed in the sewing machine arm, a regulating lever connected with said member for adjusting the eld of the oscillating movement of said needle bar, a bore disposed eccentrically in said member, a bolt in said bore, a grooved block at the end of said bolt, and a second regulating lever connected with said bolt for adjusting the setting of said block for controlling the extent of oscillating movement of said needle bar.
  • a zigzag stitch forming mechanism comprising a shuttle housing, a needle bar, an actuating rod for laterally oscillating said needle bar, driving means for actuating said rod and for imparting an oscillating movement to said housing concomitantly with the movement of said needle bar, and common regulating means for controlling the oscillating movement of said needle bar and said shuttle housing, said regulating means comprising a rotatable member disposed in the sewing machine arm, a regulating lever connected with said member for adjusting the field of the oscillating movement of said needle bar, a bore disposed eccentrlcally in said member, a bolt in said bore.
  • a grooved block at the end of said bolt and a second regulating lever connected with said bolt for adjusting the setting of said block for controlling the extent of oscillating movement of said needle bar, a lug on said actuating rod engaging the groove in said grooved block, a pin connected with said lug, and a double armed lever having one arm thereof connected with said shuttle housing and the other arm terminating in a longitudinal slot embracing said pin.
  • a zigzag stitch forming mechanism comprising a shuttle housing, a needle bar, an actuating rod for laterally oscillating said needle bar, driving means for actuating said rod and for imparting an oscillating movement to said housing concomitantly with the movement of said needle bar, and common regulating means for controlling the oscillating movement of said needle bar and said shuttle housing, said regulating means comprising a rotatable member disposed n the sewing machine arm, a regulating lever connected with said member for adjusting the' iield of the oscillating movement of said needle bar, a bore disposed eccentrically in said 'memben a bolt in said bore, a grooved block at the end of said bolt, and a second regulating lever connected with said bolt for adjusting the setting of said block for controlling the extent of oscillating movement of said needle bar, an extension on said actuating rod at the end thereof opposite the needle bar, a lug on said extension engaging the groove in said grooved block,
  • a zigzag stitch forming mechanism comprising a needle bar, a rod for oscillating said needle bar transversely of its axis, a plate below said needle bar, a pair of arms swingingly suspended from the underside of said plate, a shuttle housing carried by said arms, a shuttle in said housing, the point of said shuttle describing an upwardly open arc as said housing swings, and driving means for actuating said rod,
  • a zigzag stitch forming mechanism comprising a shuttle housing, a needle bar, an actuating rod for laterally oscillating said needle bar, driving means for actuating said rod, connections between said driving means and said shuttle housing for imparting an oscillating movement to said housing concomitantly with the movement of said needle bar, and common regulating means for controlling the oscillating movement of said needle bar and said shuttle housing comprising a rotatable member, a plate for retaining said member, an opening in said sewing machine arm for ⁇ receiving said plate, a regulating lever connected with said member for adjusting the eld of the oscillating movement of said needle bar, a bore disposed eccentrically in said member, a bolt in said bore, a grooved block at the end of said bolt,
  • one of said regulating levers is formed resiliently. a supplementary plate superposed over said member retaining plate and over said regulating levers, and a toothed portion on said supplementary plate cooperating with said resilient lever to maintain said lever in its adjusted posi- 12.
  • one of said regulating levers is formed resiliently, a supplementary plate superposed over said member retaining plate and over said regulating lcvers,'a toothed portion on said supplementary plate cooperating with said resilient lever to maintain said lever in its adjusted position, a scale on the outside of said supplementary plate adjacent said toothed portion, and a projection bent from said resilient regulating lever in proximity ⁇ to said scale.
  • a zigzag stitch forming mechanism comprising a needle bar, a rod for oscillating said needle bar transversely of its axis, a shuttle housing, va shuttle in said housing, said shuttle housing being swingingly suspended below said needle bar, whereby the point of said shuttle moves along an upwardly open arc as said housing swings, driving means for actuating said rod, and connections between said driving means and said shuttle housing for swinging the latter concomitantly with the movement of said needle bar.
  • a zigzag stitch forming mechanism comprising a needle bar, a rod for oscillating said needle bar transversely of its axis, a shuttle housing, a shuttle in said housing, said shuttle housing being swingingly suspended below said needle bar, whereby the point of said shuttle moves along an upwardly open arc as said housing swings, an axially movable actuator for oscillating said shuttle in said housing, driving means for actuating said rod, and connections between said driving means and said shuttle housing for swinging the latter, said connections having means engaging said shuttle actuator to shift the same axially.
  • a zigzag stitch forming mechanism comprising a needle bar, a rod for oscillating said needle bar transversely of its axis, a4
  • shuttle housing a shuttle in said housing, said shuttle housing being swingingly suspended below said needle bar, whereby the point of said shuttle moves along an upwardly open arc as said housing swings, a sleeve movable axially substantially in the direction in which said housing swings, a drive shaft mounted to oscillate in said sleeve, an actuator en said drive shaft for oscillating said shuttle in said housing, said shaft and actuator being movable axially with said sleeve, driving means for actuating said rod, and connections leading from said driving means to said sleeve and to said shuttle housing for imparting axial movements to the former and swinging movements to the latter, concomitantly with the movement of said needle bar.
  • a zigzag stitch forming mechanism comprising a needle bar, a rod for oscillating said needle bar transversely of its axis, a shuttle housing, a shuttle in said housing, said shuttle housing being swingingly suspended below said needle bar, whereby the point of said shuttle moves along an upwardly open arc as said housing swings, a sleeve movable axially substantially in the direction in which said housing swings, a drive shaft mounted to oscillate in said sleeve, an actuator on said drive shaft for oscillating said shuttle in said housing, said shaft and actuator being movable axially with said sleeve, a transverse yoke connected to said sleeve at the end thereof opposite said actuator, eccentric driving means for actuating said rod, connections between said eccentric and said yoke for imparting axial movements to said sleeve, and means for'transmitting movements to said shuttle housing concomitantly with the movement of said needle bar.
  • a sewing machine as described in claim 16, wherein said means for transmitting movements to said shuttle housing comprises a link extending between the lower end of said transverse yoke and said shuttle housing.
  • said means for transmitting movements to said shuttle housing comprises a link extending between the lower end of said transverse yoke and said shuttle housing, said sleeve being mounted in a bearing, said link being guided in a groove in said bearing.
  • a horizontal bracket a main driving shaft in said bracket, a needle bar mounted on said bracket so as to oscillate transversely to its axis, a rod disposed above said main driving shaft in said bracket and connected to said needle bar for oscillating the same, an eccentric for imparting up and down movements to the end of said rod remote from said needle bar, said remote end oi' said rod having a downward projection bearing a guide follower, a guide lfor said follower mounted on said bracket, a swinging shuttle housing, and 5 connections between the downward projection of saidrod and said shuttle housing, said guide being adapted to impart axial motions to said rod to swing said needle bar and said shuttle housing concomitantly.
  • connectionsl between said downward projection and said shuttle housing comprise two llrst class levers jointed together, the, remote end of one lever being connected to said 15 shuttle housing, the remote end of thefother lever being provided with a slot, said downwardpro- Jection bearing a bolt extending through said slot.
  • said driving means comprises an eccentric for swinging the end of said rod remote from said needle bar up and down, a pivotally mounted guide block having an inclined guide groove, a follower on said rod travelling in said groove to reciprocate said rod longitudinally, and means for adjusting the position of the pivot of said guide block along an inclined line.
  • a sewing machine as described in claim 2, wherein said common regulating means comprises a rotatable member, a grooved block mounted eccentrically in said member, and a plate on which said rotatable member is mount- WmHELM BLTER.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US754301A 1933-11-23 1934-11-22 Zigzag stitching machine Expired - Lifetime US2045340A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA71863D DE725117C (de) 1933-11-23 1933-11-23 Zickzacknaehmaschine

Publications (1)

Publication Number Publication Date
US2045340A true US2045340A (en) 1936-06-23

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Application Number Title Priority Date Filing Date
US754301A Expired - Lifetime US2045340A (en) 1933-11-23 1934-11-22 Zigzag stitching machine

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US (1) US2045340A (fr)
DE (2) DE725117C (fr)
FR (2) FR777129A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2579248A (en) * 1946-01-22 1951-12-18 Austlid Arnljot Sewing machine
US3020865A (en) * 1954-11-30 1962-02-13 Forster Geb Sewing machine for producing variable stitches
US3479978A (en) * 1967-06-26 1969-11-25 Singer Co Compensating loop taker mechanisms
US3633527A (en) * 1969-06-26 1972-01-11 Crystal Sewing Mach Toy sewing machine capable of switching between zigzag stitch forming and straight stitch forming operations

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH319909A (de) * 1953-11-07 1957-03-15 Int De Finance Soc Nadelstangensteuervorrichtung an einer Zickzack-Nähmaschine
CH363221A (de) * 1958-07-23 1962-07-15 Utz Ag Georg Zusatzeinrichtung an einer Nähmaschine zur selbsttätigen Herstellung von Ziernähten

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2579248A (en) * 1946-01-22 1951-12-18 Austlid Arnljot Sewing machine
US3020865A (en) * 1954-11-30 1962-02-13 Forster Geb Sewing machine for producing variable stitches
US3479978A (en) * 1967-06-26 1969-11-25 Singer Co Compensating loop taker mechanisms
US3633527A (en) * 1969-06-26 1972-01-11 Crystal Sewing Mach Toy sewing machine capable of switching between zigzag stitch forming and straight stitch forming operations

Also Published As

Publication number Publication date
FR45830E (fr) 1935-12-09
FR777129A (fr) 1935-02-12
DE691277C (de) 1940-05-21
DE725117C (de) 1942-09-14

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