US3087446A - Selvedge chain stitch machine - Google Patents

Selvedge chain stitch machine Download PDF

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Publication number
US3087446A
US3087446A US31105A US3110560A US3087446A US 3087446 A US3087446 A US 3087446A US 31105 A US31105 A US 31105A US 3110560 A US3110560 A US 3110560A US 3087446 A US3087446 A US 3087446A
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United States
Prior art keywords
pulleys
cloth
belts
belt
machine
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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
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US31105A
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English (en)
Inventor
Flach Rolf
Muller Erhard
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Xaver Fendt and Co
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Xaver Fendt and Co
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Publication date
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Publication of US3087446A publication Critical patent/US3087446A/en
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B1/00—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both
    • D05B1/08—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both for making multi-thread seams
    • D05B1/18—Seams for protecting or securing edges
    • D05B1/20—Overedge seams
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B27/00—Work-feeding means
    • D05B27/10—Work-feeding means with rotary circular feed members
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B73/00—Casings
    • D05B73/04—Lower casings
    • D05B73/12—Slides; Needle plates

Definitions

  • the present invention relates to a selvedge chain stitch machine having either a straight or curved thread-carrying sewing needle cooperating with a looper, which may or may not carry a thread, and with a stitch finger.
  • Machines of this type are special sewing machines which are used for sewing the selvedges of cloth goods, and in which the goods are passed in a vertically suspended position along the stitch forming tools, this operation being usually carried out by means of a feeding mechanism which consists of two cooperating horizontal disks.
  • the known machines of this tvpe have certain disadvantages which are especially apparent in the operation of the two cloth-feed cylinders and also in the operation of the cloth take-up roller.
  • These feeding cylinders which have relatively large diameters often produce a stretching of the two edges of the cloth which results in wavy seams.
  • the known machines of this type are equipped with a straight sewing needle which always requires a very accurate and ditficult adjustment relative to the two stitch forming tools if faulty stitches are to be prevented.
  • the large stroke of the needle bars which is also required has a very unfavorable effect upon the quietness of the operation of the entire machine.
  • the pulleys for supporting one belt are mounted in a fixed position, while the pulleys for supporting the other belt are to be mounted so as to be pivotable about an axis which extends vertically to the plane of the belts and also so as to be slidable in a direction transverse to the direction of movement of the cloth. It is further advisable to mount the rollerlike pulleys of the pivotable and slidable belt on a plate which, in turn, isvmounted on a supporting bracket which is held under spring tension relative to the housing of the machine. Also provided is a spring or the like between the supporting bracket and the pulley which is spaced from the place where the cloth is being fed, which spring presses the before-mentioned plate in the direction toward the other belt.
  • a curved sewing needle has the advantage that the thread of the sewing needle will be taken up properly and reliably, while the foot-operation of the cloth take-up roller has the advantage that the operator of the machine will always have both hands free for guiding the cloth.
  • FIGURE 1 shows a top plan view of the cloth-guiding parts of a sewing machine according to the invention which is provided with two rollerlike pulleys for each of the two belts;
  • FIG. 2 shows a partial side view of the belt guiding pulleys which are facing in the direction opposite to the place of entry of the cloth;
  • FIGURE 3 shows a top plan view of the embodiment according to FIGURE 1 in the position of the associated parts at the time of the entry of the cloth;
  • FIGURE 4 shows a plan view similar to FIGURE 1 but of a modification of the invention in which each belt is associated with three pulleys and in which the bracket 13 is disposed at the side of these pulleys and belts opposite to that shown in FIGURE 1;
  • FIGURE 5 shows a plan view similar to FIGURE 3 of the embodiment according to FIGURE 4 at the time of the entry of the cloth;
  • FIGURE 6 shows a partial side view similar to FIG- URE 2 of the embodiment according to FIGURE 4;
  • FIGURE 7 shows a perspective view of a sewing machine embodying applicants cloth-guiding means as shown in FIGURE 1.
  • an arm 1 which is rigidly secured to the machine housing 2 either supports two rollerlike guide pulleys 3a and 5a or three guide pulleys 3a, 4a, and 5a for guiding an endless belt 6 which is provided with transverse toothlike ribs 7.
  • One of the two or three guide pulleys, for example, pulley 4a may be driven by a shaft, not shown, mounted in housing 2 so that belt 6 and thus also the second belt 8 having transverse toothlike ribs 12 will be moved in the direction as shown by the arrows.
  • may, for example, be bolted thereto and extends within Arm 1 further carries a guide rail 9 which a plane parallel to the plane in which belts 6 and 8 are located.
  • Guide rail 9 contains a needle bore 10.
  • the pulleys which are used for guiding the second belt 8 are rotatably mounted on a supporting plate 11 which, in turn, is mounted on a bracket 13 so as to be pivotable about the vertical axis 4 shown in FIGURE 1 or the vertical axis of pulley 411 shown in FIGURE 4.
  • a spring 14 is provided which tends to pivot supporting plate 11 in a counterclockwise direction.
  • Supporting plate 11 also. carries a guide rail 16 which is likewise provided with a needle bore 17.
  • Bracket 13 is mounted on the machine housing 2 so as to be movable within a horizontal plane and it is acted upon by a spring 15 which tends to shift it in the direction toward housing 2.
  • bracket 13 If no cloth is passed between the ribbed belts 6 and 8, spring 15 urges them toward and into interengagement with each other. If bracket 13 is shifted in the direction against the ac-. tionof spring 15, for example, by means of a foot lever or the like, supporting plate 11 will be pivoted in a counterclockwise direction because of the arrangement of spring 14 between plate 11 and bracket 13. The distance between guide pulleys 3a and 3b of the two ribbed belts will therefore be increased so that the edges 18 of the cloth which are to be sewed together will be inserted between the ribbed belts by the take-up roller, not shown, which is associated with the machine, whereupon bracket 13 will be returned to its original position.
  • a linking or chaining thread is formed which is drawn along by the cloth until it has passed out of the belts. It is thus possible to form the linking thread automatically at the beginning and end of each sewing operation since the linking thread which is formed at the sewing point takes over the function of drawing up the linking thread between the two flanges 21 and 22 of the pair of pulleys a and 5b so that the linking thread will be formed continuously at the sewing point.
  • the flanges 21 and 22 function as.
  • FIGURES 1 to 3 shows theinsertion ot-the workpiece from right toleft, and the 1 special illustrated by FIGURES 4 to 6 the insertion from left to right.
  • the parts 18 and 19 of the workpiece which are to be sewed together are inserted into the belts 6- and 8 in such manner that one set of their borders projects over the plane which is determined by the adjoining belt edges shown in FIGURES 2 and 6.
  • the two parts-now sewed together have passed the point of sewing they are seized by the flanges 21 and 22 and are kept moving, even if the sewing needle 20 does not pierce the workpiece parts any longer, and the chain will be formed thereby.
  • a selvedge chain stitch sewing machine having cloth feeding means rotatable within a horizontal plane for moving the cloth in a vertically suspended position past the stitch forming place, in which said feeding means consist of at least two endless belts operatively associated with and partly facing toward each other, a first set of pulleys for guiding one of said belts, a second set of pulleys for guiding another of said belts, fixed supporting means for said first set of pulleys, supporting means for said second set of pulleys including a plate member on which said second set of pulleys are rotatably mounted, a bracket member slidably mounted on said machine for movement parallel to said horizontal plane, and pivot means connecting said plate member to said bracket member, the axis of said pivot means being vert1ca 2.
  • a selvedge chain stitch sewing machine having cloth-feeding means rotatable within a horizontal plane for moving the cloth in a vertically suspended position past the stitch-forming place, in which said feeding means consist of at least two endless belts operatively associated with and partly facing toward each other, said machine further having a sewing needle operatively associated with a looper and a stitch finger, in which for taking along and guiding the edges of two cloth parts to be connected, each of said endless belts is provided with tooth-like ribs facing toward the cloth and extend ing substantially parallel thereto, and roller-like pulleys having teeth for guiding said belts, the pulleys for guiding one of said belts being rotatably mounted in a fixed position and the pulleys for guiding the other belt being mounted so as to be pivotable about an axis extending vertically to the plane of said belts and also so as to be slidable in a direction transverse to the plane of movement of the cloth.
  • a supporting member is provided for rotatably mounting said pulleys of said pivotable and slidable belt, a supporting bracket slidably mounted on said machine, said supporting member being p-ivotably mounted on said bracket, spring means acting upon said bracket to urge said supporting member with said pivotable and slidable belt thereon in the direction toward the other belt, and spring means for urging the side of said supporting member carrying the out-going pulley thereon in the direction toward the other belt.
  • each of said guide rails having a bore for the movement of the sewing needle, the bore in at least one of said guide rails merging in the upward direction into an elongated slot.
  • a selvedge chain stitch sewing machine having cloth-feeding means rotatable within a horizontal plane for moving the cloth in a vertically suspended position past the stitch forming place, in which said feeding means consist of at least two endless belts operatively associated with and partly facing toward each other, said feed ing means including pulleys for driving said belts, two of said pulleys having flange means thereon disposed in a plane substantially perpendicular to the direction of movement of said cloth, said sewing machine further comprising a needle at said stitch-forming place, said needle being disposed in said plane.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US31105A 1959-05-27 1960-05-23 Selvedge chain stitch machine Expired - Lifetime US3087446A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF28536A DE1114690B (de) 1959-05-27 1959-05-27 Regulaer-Kettenstich-Naehmaschine

Publications (1)

Publication Number Publication Date
US3087446A true US3087446A (en) 1963-04-30

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Application Number Title Priority Date Filing Date
US31105A Expired - Lifetime US3087446A (en) 1959-05-27 1960-05-23 Selvedge chain stitch machine

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US (1) US3087446A (de)
DE (1) DE1114690B (de)
FR (1) FR1258154A (de)
GB (1) GB906277A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208418A (en) * 1959-02-12 1965-09-28 Johnson & Johnson Sewing machine feeding mechanism
US3761073A (en) * 1971-09-14 1973-09-25 Coats Ltd J & P Device for automatically guiding material during seam formation
US3800719A (en) * 1972-09-08 1974-04-02 Jetsew Inc Sewing machine material feed mechanism
US5383418A (en) * 1984-01-16 1995-01-24 Joseph Galkin Corporation Top feed system with toothed belt and clutch
WO1995029279A1 (en) * 1994-04-22 1995-11-02 British United Shoe Machinery Limited Workpiece clamping and feeding device
CN112111863A (zh) * 2020-10-09 2020-12-22 马洽豪 一种掰密缝机

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2848123C2 (de) * 1978-11-06 1983-10-06 Duerkoppwerke Gmbh, 4800 Bielefeld Nähmaschine mit einem oberen und einem unteren Transportband
JPS5566387A (en) * 1978-11-11 1980-05-19 Tatsuo Sakonishi Nose crosssstitch method of sock by series system
GB2187212A (en) * 1986-02-27 1987-09-03 Textile Handling And Technolog Device for sewing materials with nap or pile
US4719864A (en) * 1987-05-11 1988-01-19 The Charles Stark Draper Laboratory, Inc. Limp material seam joining apparatus with rotatable limp material feed assembly
FR2630418A1 (fr) * 1988-04-22 1989-10-27 Neyret Guy Dispositif d'entrainement par traction d'un materiau long a section sensiblement constante

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1403874A (en) * 1917-11-21 1922-01-17 Union Special Machine Co Feeding mechanism for filled-bag-sewing machines
DE508129C (de) * 1929-01-22 1930-09-27 Union Special Maschinenfab Naehmaschine mit Bandtransport
US2060897A (en) * 1933-02-07 1936-11-17 Du Pont Apparatus for impregnating nonwoven fabrics
US2106536A (en) * 1935-06-05 1938-01-25 Union Special Machine Co Fabric feeding mechanism for sewing machines
US2164501A (en) * 1933-04-14 1939-07-04 Bagpak Inc Apparatus for filling, sewing, and sealing bags
US2199270A (en) * 1937-01-16 1940-04-30 S & S Corrugated Paper Mach Feed roller

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE701165C (de) *
FR781428A (fr) * 1934-02-07 1935-05-15 Procédé de formation de nappes de filaments de kapok ou analogues et appareillage pour l'application de ce procédé
US2618230A (en) * 1948-04-06 1952-11-18 Singer Mfg Co Auxiliary feeding means for hosiery seamers
US2726614A (en) * 1953-03-04 1955-12-13 Singer Mfg Co Feeding mechanisms for sewing machines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1403874A (en) * 1917-11-21 1922-01-17 Union Special Machine Co Feeding mechanism for filled-bag-sewing machines
DE508129C (de) * 1929-01-22 1930-09-27 Union Special Maschinenfab Naehmaschine mit Bandtransport
US2060897A (en) * 1933-02-07 1936-11-17 Du Pont Apparatus for impregnating nonwoven fabrics
US2164501A (en) * 1933-04-14 1939-07-04 Bagpak Inc Apparatus for filling, sewing, and sealing bags
US2106536A (en) * 1935-06-05 1938-01-25 Union Special Machine Co Fabric feeding mechanism for sewing machines
US2199270A (en) * 1937-01-16 1940-04-30 S & S Corrugated Paper Mach Feed roller

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208418A (en) * 1959-02-12 1965-09-28 Johnson & Johnson Sewing machine feeding mechanism
US3761073A (en) * 1971-09-14 1973-09-25 Coats Ltd J & P Device for automatically guiding material during seam formation
US3800719A (en) * 1972-09-08 1974-04-02 Jetsew Inc Sewing machine material feed mechanism
US5383418A (en) * 1984-01-16 1995-01-24 Joseph Galkin Corporation Top feed system with toothed belt and clutch
WO1995029279A1 (en) * 1994-04-22 1995-11-02 British United Shoe Machinery Limited Workpiece clamping and feeding device
CN112111863A (zh) * 2020-10-09 2020-12-22 马洽豪 一种掰密缝机

Also Published As

Publication number Publication date
GB906277A (en) 1962-09-19
DE1114690B (de) 1961-10-05
FR1258154A (fr) 1961-04-07

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