US2035206A - Sewing and embroidering machine with top feed and oscillating needle - Google Patents

Sewing and embroidering machine with top feed and oscillating needle Download PDF

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Publication number
US2035206A
US2035206A US549890A US54989031A US2035206A US 2035206 A US2035206 A US 2035206A US 549890 A US549890 A US 549890A US 54989031 A US54989031 A US 54989031A US 2035206 A US2035206 A US 2035206A
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US
United States
Prior art keywords
needle
cloth
slide
lever
feed
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Expired - Lifetime
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US549890A
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English (en)
Inventor
Unger Hugo
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.)
Firm Lintz & Eckhardt
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Firm Lintz & Eckhardt
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Filing date
Publication date
Application filed by Firm Lintz & Eckhardt filed Critical Firm Lintz & Eckhardt
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Publication of US2035206A publication Critical patent/US2035206A/en
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C7/00—Special-purpose or automatic embroidering machines

Definitions

  • This invention relates to a sewing and embroidering machine with top feed, that is with a cloth feeder suspended oscillatable and liftable above the throat plate in which a thread or filler is tightly sewn on to the cloth by means of the zig-zag-shaped lock stitch, produced by an OS- cillatable needle.
  • the cloth feed has hitherto been effected during every stitch of the needle, which oscillates transversely to the feed direction.
  • the oscillating movement of the cloth feeder must in such machines not be less than a certain amplitude, as otherwise the cloth feed or transport will miss during rapid sewing. Consequently in such machines the sewn on decorative thread or filler was hitherto always more or less visible. It was impossible to cause the individual zig-zag-shaped stitches of the fastening thread to lie so close together, that the filler was completel covered, and to convert by means of the covering stitches of the fastening thread the filler into a thick cord of uniform appearance.
  • the cloth feeder according to the invention is adapted to swing out at an oblique angle to the plane of the needle oscillation so that therefore the cloth feed takes place at an angle to the plane of the needle oscillation.
  • the drive of the cloth feeder is further so arranged that the cloth feeder receives the swinging out movement, necessary for the cloth feed, only during each second needle oscillation.
  • the needle is swung out in the plane of the one zig-zag stitch and the other or actually second zig-zag stitch occurs only during the simultaneous cloth feed, it is possible with the uniform progress of the zig-zag seam, for the mutual distance of the zigzag stitches to be reduced to half the size hitherto possible.
  • the individual stitches consequently come to lie close together, so that the filler is almost completely enclosed by the sewing thread.
  • a particularly simple construction of the machine with a very clear running 01f of the insert thread is obtained, if the lower end of the main tube, rotatably surrounding the needle bar, is utilized not only for fitting the slidable guide for the transverse slide effecting the needle oscillation, but also for mounting the filler reel.
  • this bar is inserted with a thickened portion arranged on its upper end between two cheeks of a vertically reciprocating tube inserted in the main tube, and coupled for rotation with the main tube by means of a pin and slot connection.
  • Fig. 1 is a side elevation of the new machine, partly in section,
  • Fig. 2 is an end elevation. 10
  • Fig. 3 is a cross section.
  • Fig. 4 shows on a larger scale the stitch formation, the cloth feed being so set, for the sake of clearness, that the individual zig-zag stitches can be easily seen.
  • the head plate of the machine plate 2 is 1 provided, in known manner, with guide eyes 3, 4 for the vertical main tube 5 of the machine, which rests, by means of. a flange 6, on the upper guide eye 3.
  • the main tube is also rotated in known manner, by means of bevel wheels I, 8, from a crank, not shown, situated under the table plate.
  • a tube 9 is inserted, which is carried by a vertically shiftable slide l0, guided in the head plate I.
  • the tube 9 is shiftably guided in the main tube 5 by means of a pin l2, inserted in the flange 6 and extending into a slot II in the tube 9 being at the sametime coupled for rotation with the main tube 5, so that it is also rotated with the main tube.
  • the cloth feeder consists in known manner of a bent bar 2
  • is oscillatably suspended by means of a screw pin 25 on a ring 26 surrounding with clearance the main tube 5. which ring is oscillatable in known manner transversely to the vertical maintube axis by means of lateral journals 26'.
  • the ring 26 operating like a Cardan joint is fitted on a slide 21, guided in the head plate I and acted upon by a downwardly pressing spring 28. The up and down movement of the cloth feeder 2
  • auxiliary shaft 38 is derived from an auxiliary shaft 38, mounted in a hanging bracket 29, parallel to the main machine shaft H, a toothed wheel 3
  • the auxiliary shaft 36 is r0 tated only at half the speed of the main shaft
  • a cam 33 is keyed, which acts on a roller 34 of a two-armed lever 35, which is oscillatably mounted on a pin 36 in the head plate I. The free end of this lever engages under a nose 31 of the feeder 21 carrying the cloth slide bar 2
  • a two-armed lever 48 engages in a groove 41 in this conical sleeve 46 and is oscillatably mounted on a pin 49 on a sleeve 50 fixed on the main tube 5.
  • This sleeve 58 can be clamped in any desired position of rotation on the main tube 5 by means of a fixing screw 5
  • the lower end of the lever 48 engages in a hole 53' of a ring disc 53 which is inserted loosely rotatable in a ring 52 of the cloth feeder bar 2
  • the ring 53 has a rectangular hole 54 (Fig. 3) which engages around a square portion 55 of the sleeve 50.
  • a flange 63 is provided on which a slide guide 64 is fitted for a transversely movable slide 65.
  • This slide 65 has'an eye 66, which surrounds the needle bar I5 and which oscillates during its displacement.
  • the displacement of the slide 65 is derived from a grooved cam 61, keyed on the auxiliary shaft 38, and in which a pin 68 of a lever 18 engages, oscillatably mounted on a pin 69 on the machine frame 2.
  • the oscillation imparted to the lever 10 by the grooved cam 61 is communicated to a two-armed lever 12, oscillatably mounted on a pin 1
  • the free end of the lever 12 is connected by a screw 16 to a slide 11, guided shiftable in vertical direction on the machine head plate I.
  • the slide 11 carries a ring 19 loosely slipped on to the main tube 5, and on which a downwardly Cal extending arm is fixed.
  • This arm 88 has a pin 8
  • the ring 19, together with the arm 80 is either raised or lowered, and consequently the transverse slide 65 is shifted either to the left or to the right.
  • This shifting of the slide 65 however results in a swinging out of the needle bar
  • the amplitude of the needle oscillation and consequently the length of stitch is adjustable, as can be easily seen, by displacing the connecting clamping screw 13.
  • a slide 85 In vertical grooves 84 in the slide guide 64 a slide 85 is guided, on which a small cloth presser 86 with oval supporting ring 81 and acting in the interior of the cloth feed ring 22, is exchangeably fixed.
  • the slide 85 is generally pressed downwards by a spring 89 acting upon a screw bolt 88 of the slide 85 and consequently the cloth presser is pressed on to the cloth.
  • the lifting of the cloth presser is effected by every rising of the needle by an abutment 90 provided on the needle bar and bearing from below against an abutment 9
  • a bearing bolt 92 for the filler reel 93 is also fixed on the flange 63 of the main tube 5.
  • the filler 94 unwinding from the reel 93 is threaded through a hole 95 in the flange arm 96 and also through a groove 91 of the cloth presser ring 81, so that the cloth presser ring 81 bears on the filler 94 to be sewn.
  • the stitching thread 98 (Fig. 4) is guided downwards in known manner in the interior of the hollow needle bar I5 and then fed to the needle eye, after passing through a hole 99 in the needle bar.
  • the disengaging of the cloth feed is effected in known manner by a hand lever I09, pivotally mounted on the head plate I and carrying along, during its swinging up movement, the slide 21 which carries the cloth feeder 2
  • the oscillating needle 83 produces, during its oscillation from the right to the left, actually one stitch a, which extends axially to the oval cloth presser ring 81 and to circular cloth feed ring 22.
  • the individual stitches a are nevertheless directed at an angle to the filler 94, as the feed direction :ra: of the filler forms an acute angle 2 with the plane y-y of the needle oscillation.
  • the stitches b which are produced during the oscillation of the needle from the left to the right, are also directed at an angle to the filler 94, as during this stitch formation a feed, equal to the distance m, takes place.
  • each zig-zag stitch composed of two stitches a and b only one feed m is required, it is evident, that the zig-zag stitches lie very close together, so that the filler can in practice be completely or almost completely covered by the stitching thread 98.
  • the distance m of the cloth feed is adapted to be regulated in known manner by means of an adjusting screw, 43', acting on the slide 43 and adapted to be shifted vertically in a lug l' on the head plate I.
  • a sewing and embroidering machine comprising in combination with the throat plate of the machine, an oscillatable needle, a cloth feeder adapted to swing out above said throat plate at an oblique angle to the oscillating plane of said needle, and means for swinging out said cloth feeder after each second needle oscillation.
  • a machine as specified in claim 1, comprising in combination with the needle, a needle bar carrying said needle, a rotatable main tube surrounding said needle bar, a slide guide on the lower end of said main tube, a transverse slide on said guide adapted to effect the oscillation of said needle, and a filler reel holder mounted on the lower end of said main tube near the needle.
  • a machine as specified in claim 1, comprising in combination with the main driving shaft of the machine and with the needle, a needle bar carrying said needle, a main tube surrounding said needle bar, a vertically shiftable tube inserted in said main tube, two cheeks on said vertically shiftable tube, a thickened portion on the upper end of said needle bar inserted between said cheeks, and a pin and slot connection adapted to rotatably connect said vertically shiftable tube to said main tube.
  • a machine as specified in claim 1, comprising in combination with the cloth feeder and the oscillatable needle, a main shaft, a cam on said shaft, a control element actuated by said cam adapted to swing said cloth feeder, an auxiliary shaft rotatable at half the speed of said main shaft, a plurality of cams on said auxiliary shaft, a needle oscillation control element actuated by one of said cams, and a control element adapted to raise and lower said cloth feeder actuated by a second of said plurality of cams adapted toalternately liberate said cloth feeder control element during one revolution of said main shaft and to arrest said cloth feeder control element during the next following revolution of said main shaft.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US549890A 1930-07-23 1931-07-10 Sewing and embroidering machine with top feed and oscillating needle Expired - Lifetime US2035206A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1930T0019430 DE560786C (de) 1930-07-23 1930-07-23 Kurbelstickmaschine

Publications (1)

Publication Number Publication Date
US2035206A true US2035206A (en) 1936-03-24

Family

ID=6566028

Family Applications (1)

Application Number Title Priority Date Filing Date
US549890A Expired - Lifetime US2035206A (en) 1930-07-23 1931-07-10 Sewing and embroidering machine with top feed and oscillating needle

Country Status (3)

Country Link
US (1) US2035206A (fr)
DE (1) DE560786C (fr)
FR (1) FR720077A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109023750A (zh) * 2018-09-17 2018-12-18 陶大虎 用于刺绣机玻璃珠的四层载带供料器机构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4461226A (en) * 1982-04-20 1984-07-24 Tokai Kogyo Mishin Kabushiki Kaisha Waiting means in an embroidering machine
ATA354285A (de) * 1985-12-06 1992-07-15 Hofer Josef Dr Einrichtung an stickmaschinen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109023750A (zh) * 2018-09-17 2018-12-18 陶大虎 用于刺绣机玻璃珠的四层载带供料器机构
CN109023750B (zh) * 2018-09-17 2023-08-22 深圳市嘉程智造科技有限公司 用于刺绣机玻璃珠的四层载带供料器机构

Also Published As

Publication number Publication date
FR720077A (fr) 1932-02-15
DE560786C (de) 1932-10-07

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