US3211115A - Sewing machine with heated material perforating means - Google Patents

Sewing machine with heated material perforating means Download PDF

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Publication number
US3211115A
US3211115A US351286A US35128664A US3211115A US 3211115 A US3211115 A US 3211115A US 351286 A US351286 A US 351286A US 35128664 A US35128664 A US 35128664A US 3211115 A US3211115 A US 3211115A
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United States
Prior art keywords
needle
heated
sewing
point
sewing machine
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Expired - Lifetime
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US351286A
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English (en)
Inventor
Burillon Pierre
Chezaud Jean Claude
Mangieri Dominique
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.)
Rhodiaceta SA
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Rhodiaceta SA
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Publication date
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Publication of US3211115A publication Critical patent/US3211115A/en
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B81/00—Sewing machines incorporating devices serving purposes other than sewing, e.g. for blowing air, for grinding

Definitions

  • the present invention relates to a sewing machine for sewing fabrics or sheets of a thermoplastic material.
  • thermoplastic thread Furthermore it is difficult to use high-speed sewing machines when using a thermoplastic thread since the heating of the needle caused by the friction against the fabric is such that it causes melting and breakage of the thread.
  • a device comprising a heated piercing needle which is secured to the sewing needle, so that the sewing needle enters the holes previously formed by the heated needle which is situated in front of the said sewing needle.
  • a sewing machine for sewing flat thermoplastic materials such as woven fabrics or webs, by sewing through holes previously formed in the flat material, such machine comprising at least one heated point which is situated upstream of the hole of the sewing plate relatively to the L advancing movement of the fabric, at a distance equal to n times the length of the stitch where n is a positive integer and projecting upwardly from said needle plate and means for causing the heated point to pierce the material by a relative movement between the heated point and the material.
  • the heated point can be heated in any manner but is preferably effected electrically using the Joule effect.
  • Means can be provided for permitting the regulation and/ or the discontinuing of the heating in dependence on working conditions, sewing speed, nature and thickness of the flat elements which are to be sewn.
  • a centrifugal governor can be provided which is fixed to th driving shaft of the machine and act on a rheostat, to regulate the current flowing through the heating means in dependence on the speed of the machine.
  • this system is used in conjunction with a manual control to stop and regulate the heating to suit the nature and thickness of the material being sewn.
  • the device for making the heated point emerge above the needle plate may be constructed, for example, by fixing the heated point to one end of a bell-crank.
  • the other end of the lever may be acted on in one direction by a spring which tends to hold the heated point below the level of the needle plate, and in the opposite direction by an electromagnet which, when energized, attracts the lever and pivots the heated point to a position above the needle plate.
  • the electromagnet When the material is stationary, approximately at the instant at which the sewing needle of the sewing machine is about to penetrate the material the electromagnet is energised and thus causes the heated point to perforate the material from below.
  • the electromagnet can be energised through a switch coupled to the drive mechanism of the sewing machine.
  • the material may be lifted and lowered while the heated point which projects above the needle plate remains Sta: tionary.
  • the material, which is lifted and lowered by the feed system impales itself on the fixed heated point.
  • Means are advantageously provided for enabling the heated point to be retracted when not required or when stitching is carried out in reverse. These means may also permit the heated point to be rendered inoperative when turning the fabric, particularly when sewing stitches at an angle to a previous line of stitches. The retraction of the heated point can also be effected at any instant, for example when it is desired to sew non-thermoplastic fabrics. It will be apparent that when the heated point is not used, it may be advantageous to discontinue the heating of the point, if the inoperative period is to be prolonged.
  • the line of action of the heated point is parallel to the line of action of the sewing needle.
  • certain types of sewing machine for example those known as elliptical feed machines, such as certain whip stitch apparatus, it may be advantageous to incline the axis of the heated point in the direction of advance of the fabric with respect to the line of action of the sewing needle.
  • the retractable device for the heated point comprises means for regulating the amount that the point emerges above the needle plate.
  • FIGURE 1 is a plan view showing the needle plate of a simple-feed machine, provided with a device according to the invention for preforming holes;
  • FIGURE 2 is a sectional view taken on AB of FIG- URE 1;
  • FIGURE 3 is a view similar to FIGURE 2 showing the point in the retracted position;
  • FIGURES 4 and 5 show a variant in which the fabric is raised and lowered relative to the heated point;
  • FIGURE 6 shows diagrammatically the electrical circuit of the machine according to the invention.
  • FIGURE 7 ShOWs diagrammatically the operation of the feed dogs.
  • FIGURE 8 shows a sewing machine, in accordance with the invention, in diagrammatic front elevation.
  • FIGURE 1 shows a needle plate 1 a heated point 2 which can slide in an elongated aperature 3 permitting the position of the said heated point to be regulated by means of adjusting screws 4.
  • Apertures 5 and 6 are provided for the feed dogs, and the needle respectively.
  • FIGURE 2 shows the retractable device for the heated point.
  • the heated point 2 is fixed on a steel bell-crank lever 7 which can pivot about a fixed pivot 8. It is urged in one direction by a return spring 9 which tends permanently to hold the heated point below the sewing plate, and in the opposite direction by an electromagnet 10 whos attraction force is greater than the force supplied by the spring.
  • FIGURE 6 The electric circuit diagram of the apparatus of the invention is shown in FIGURE 6.
  • the apparatus is supplied by an alternating source of current (not shown) through the conductors 13 and 14.
  • the circuit is protected by means of a fuse 15 and is provided with a main switch 16.
  • the arms of a governor, connected to the drive mechanism of the machine, are illustrated schematically at 18 and move the slider 19 which comes into contact with one of the resistances of decreasing value 20, 21, 22, 23 and 24.
  • the system automatically increases the heating power as the speed of the machine rlsses.
  • a rotary switch 25 is coupled to the drive mechanism of the machine and connects the electromagnet 10 to the circuit.
  • the switch 26 is coupled to the switch of the machine and disconnects the electromagnet 10 when this switch is opened.
  • the heated point 2 is provided with a resistance for heating, the resistance being fed from transformer 28 via a rheostat 27 to give a manual regulation of the temperature to suit the nature and thickness of the material to be sewn.
  • a switch 29 is ganged to the reversing switch of the machine to disconnect the electromagnet when the machine is run in reverse.
  • the movement of the feed dogs is effected in a known manner through a system of cams shown schematically in FIGURE 7.
  • Two cams 31 and 32 are secured to the motor arm 33 and transmit to the feed dog 11 forward and backward reciprocating motion and a raising and lowering reciprocating motion.
  • the amplitude of movement of the forward and backward reciprocation transmitted to the feed dog 11 is regulated in a known manner by the cam 32.
  • the machine 34 is of standard form: the needle 35 is reciprocated through needle aperture 6, by means of crank 37 driven by motor arm 33 via linkage 38 so that movement of the feed dogs is coordinated with movement of the needle.
  • relative movement between the fabric and heated point is effected by the electromagnet 10 and spring 9 pivoting the bell crank lever between the position of FIGURE 2 and that of FIGURE 3.
  • the point remains stationary and the fabric is raised and lowered.
  • FIGURES 4 and 5 show diagrammatically, during the sewing operation, two separate positions of the feed dogs 11, the heated point 2 and the material 12 relatively to the needle plate I.
  • the heated point projects through the needle plate for the entire duration of the sewing operation.
  • FIGURE 4 the machine is shown in a position in which a stitch has just been formed and, at the same time, a perforation has been formed by the heated point.
  • the feed dogs In the position of FIGURE 5, the feed dogs have lifted the fabric and made it advance, rearwardly with respect to the plane of the figure, above the heated point by the length of a stitch.
  • the device accordinging to the invention makes it possible for the preforming of sewing holes to be carried out quite easily, and therefore stitching without puckering is made possible.
  • a sewing machine comprising a needle and needle plate; drive means for reciprocating said needle through said needle plate; means for translating material by a stitch length relative to said needle and plate from a position upstream of said needle, a heated point situated upstream of said needle by a distance equal to n times a stitch length, where n is a positive integer and projecting upwardly from said needle plate and means for causing the heated point to pierce material by relative movement thereof with respect to said heated point.
  • a sewing machine comprising a needle and needle plate; drive means for reciprocating said needle through said needle plate; means for translating material by a stitch length relative to said needle and plate from a position upstream of said needle, a heated point situated upstream of said needle by a distance equal to n times a stitch length, where n is a positive integer and projecting upwardly from said needle plate and means for causing said heated point to reciprocate through said needle plate in time with said needle.
  • a sewing machine comprising a needle and needle plate; drive means for reciprocating said needle through said needle plate; means for translating material by a stitch length relative to said needle and plate from a position upstream of said needle; a point situated upstream of said needle by a distance equal to n times the stitch length, where n is a positive integer and projecting upwardly from said needle plate, electrical heating means effective to heat said point and means for causing said heated point to reciprocate through said needle plate in time with said needle.
  • said means causing the point to reciprocate comprise a bell crank lever having two ends, a pivot for said bell crank lever, said point being fixed to one of said ends, a spring secured to the other of said ends urging said lever in one direction effective to retract said needle below said plate and an electromagnet so positioned, when energised, to
  • a sewing machine comprising a needle and needle plate; drive means for reciprocating said needle through said needle plate; means for translating material by a stitch length relative to said needle and plate from aposition upstream of said needle a heated point situated upstream of said needle by a distance equal to n times a stitch length, where n is a positive integer and projecting upwardly from said needle plate and means for lifting and lowering material translated by said translating means whereby said material is impaled on said heated point.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US351286A 1963-03-15 1964-03-12 Sewing machine with heated material perforating means Expired - Lifetime US3211115A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR928162A FR1359354A (fr) 1963-03-15 1963-03-15 Appareil pour la couture d'éléments plats à base de fils thermoplastiques

Publications (1)

Publication Number Publication Date
US3211115A true US3211115A (en) 1965-10-12

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US351286A Expired - Lifetime US3211115A (en) 1963-03-15 1964-03-12 Sewing machine with heated material perforating means

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US (1) US3211115A (en)van)
AT (1) AT275291B (en)van)
BE (1) BE645176A (en)van)
CH (1) CH402799A (en)van)
DK (1) DK117264B (en)van)
ES (1) ES294886A1 (en)van)
FI (1) FI42026B (en)van)
FR (1) FR1359354A (en)van)
GB (1) GB987057A (en)van)
NL (1) NL6402114A (en)van)
OA (1) OA01611A (en)van)
SE (1) SE218037C1 (en)van)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3444598A (en) * 1965-04-13 1969-05-20 Prym Werke William Sliding clasp fasteners
US3779184A (en) * 1972-07-20 1973-12-18 Blanc F Jean Feed dog awl assembly
US4077340A (en) * 1975-10-03 1978-03-07 Pfaff Industriemaschinen G.M.B.H. Sewing machine having workpiece prepuncturing device
US6645333B2 (en) 2001-04-06 2003-11-11 Ebert Composites Corporation Method of inserting z-axis reinforcing fibers into a composite laminate
US6676785B2 (en) 2001-04-06 2004-01-13 Ebert Composites Corporation Method of clinching the top and bottom ends of Z-axis fibers into the respective top and bottom surfaces of a composite laminate
US20040234742A1 (en) * 2001-04-06 2004-11-25 Johnson David W. 3D fiber elements with high moment of inertia characteristics in composite sandwich laminates
US20050006023A1 (en) * 2001-04-06 2005-01-13 Johnson David W. Method of inserting z-axis reinforcing fibers into a composite laminate
US20050025948A1 (en) * 2001-04-06 2005-02-03 Johnson David W. Composite laminate reinforced with curvilinear 3-D fiber and method of making the same
US20050118448A1 (en) * 2002-12-05 2005-06-02 Olin Corporation, A Corporation Of The Commonwealth Of Virginia Laser ablation resistant copper foil
AU2002319748B2 (en) * 2001-08-02 2006-12-14 Ebert Composites Corporation Method of clinching top and bottom ends of z-axis fibers into the respective top and bottom surfaces of a composite laminate
US20080145592A1 (en) * 2001-04-06 2008-06-19 Ebert Composites Corporation Composite Sandwich Panel and Method of Making Same
US7785693B2 (en) 2001-04-06 2010-08-31 Ebert Composites Corporation Composite laminate structure
US20150252504A1 (en) * 2014-03-06 2015-09-10 Brother Kogyo Kabushiki Kaisha Sewing machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004055592B4 (de) * 2004-11-18 2021-03-18 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Verbinden mindestens zweier Bauteile aus einem thermoplastischen Faserverbundwerkstoff

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2211362A (en) * 1936-12-10 1940-08-13 Herbert G R Bennett Flying shear control
US2282200A (en) * 1939-01-03 1942-05-05 Us Patent Dev And Royalty Comp Tape cutter for bag closing machines
US2421712A (en) * 1943-01-09 1947-06-03 Reece Corp Buttonhole sewing machine
US2592463A (en) * 1946-10-10 1952-04-08 Warner Brothers Co Machine for cutting, processing, and/or seaming fabric or like sections and product thereof
US2762323A (en) * 1951-10-23 1956-09-11 Bernard Silvere Serge Louis Device for assembling fabrics of synthetic material such as superpolyamide

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2211362A (en) * 1936-12-10 1940-08-13 Herbert G R Bennett Flying shear control
US2282200A (en) * 1939-01-03 1942-05-05 Us Patent Dev And Royalty Comp Tape cutter for bag closing machines
US2421712A (en) * 1943-01-09 1947-06-03 Reece Corp Buttonhole sewing machine
US2592463A (en) * 1946-10-10 1952-04-08 Warner Brothers Co Machine for cutting, processing, and/or seaming fabric or like sections and product thereof
US2762323A (en) * 1951-10-23 1956-09-11 Bernard Silvere Serge Louis Device for assembling fabrics of synthetic material such as superpolyamide

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3444598A (en) * 1965-04-13 1969-05-20 Prym Werke William Sliding clasp fasteners
US3779184A (en) * 1972-07-20 1973-12-18 Blanc F Jean Feed dog awl assembly
US4077340A (en) * 1975-10-03 1978-03-07 Pfaff Industriemaschinen G.M.B.H. Sewing machine having workpiece prepuncturing device
US20070029024A1 (en) * 2001-04-06 2007-02-08 Johnson David W Method of Inserting Z-Axis Reinforcing Fibers into a Composite Laminate
US7387147B2 (en) 2001-04-06 2008-06-17 Ebert Composites Corporation Apparatus for inserting z-axis reinforcing fibers into a composite laminate
US20040234742A1 (en) * 2001-04-06 2004-11-25 Johnson David W. 3D fiber elements with high moment of inertia characteristics in composite sandwich laminates
US20050006023A1 (en) * 2001-04-06 2005-01-13 Johnson David W. Method of inserting z-axis reinforcing fibers into a composite laminate
US20050025948A1 (en) * 2001-04-06 2005-02-03 Johnson David W. Composite laminate reinforced with curvilinear 3-D fiber and method of making the same
US8272188B2 (en) 2001-04-06 2012-09-25 Ebert Composites Corporation Composite laminate structure
US7056576B2 (en) 2001-04-06 2006-06-06 Ebert Composites, Inc. 3D fiber elements with high moment of inertia characteristics in composite sandwich laminates
US7105071B2 (en) 2001-04-06 2006-09-12 Ebert Composites Corporation Method of inserting z-axis reinforcing fibers into a composite laminate
US8002919B2 (en) 2001-04-06 2011-08-23 Ebert Composites Corporation Method of inserting Z-axis reinforcing fibers into a composite laminate
US6645333B2 (en) 2001-04-06 2003-11-11 Ebert Composites Corporation Method of inserting z-axis reinforcing fibers into a composite laminate
US7217453B2 (en) 2001-04-06 2007-05-15 Ebert Compoistes Corporation Composite laminate structure
US6676785B2 (en) 2001-04-06 2004-01-13 Ebert Composites Corporation Method of clinching the top and bottom ends of Z-axis fibers into the respective top and bottom surfaces of a composite laminate
US20080145592A1 (en) * 2001-04-06 2008-06-19 Ebert Composites Corporation Composite Sandwich Panel and Method of Making Same
US20090071594A1 (en) * 2001-04-06 2009-03-19 Ebert Composites Corporation Method of Inserting Z-Axis Reinforcing Fibers into a Composite Laminate
US7731046B2 (en) 2001-04-06 2010-06-08 Ebert Composites Corporation Composite sandwich panel and method of making same
US7785693B2 (en) 2001-04-06 2010-08-31 Ebert Composites Corporation Composite laminate structure
US7846528B2 (en) 2001-04-06 2010-12-07 Ebert Composites Corporation Composite laminate structure
US20110104433A1 (en) * 2001-04-06 2011-05-05 Ebert Composites Corporation Composite Laminate Structure
AU2002319748B2 (en) * 2001-08-02 2006-12-14 Ebert Composites Corporation Method of clinching top and bottom ends of z-axis fibers into the respective top and bottom surfaces of a composite laminate
US20050118448A1 (en) * 2002-12-05 2005-06-02 Olin Corporation, A Corporation Of The Commonwealth Of Virginia Laser ablation resistant copper foil
US20150252504A1 (en) * 2014-03-06 2015-09-10 Brother Kogyo Kabushiki Kaisha Sewing machine
US9464372B2 (en) * 2014-03-06 2016-10-11 Brother Kogyo Kabushiki Kaisha Sewing machine

Also Published As

Publication number Publication date
ES294886A1 (es) 1964-03-01
SE218037C1 (sv) 1968-01-02
GB987057A (en) 1965-03-24
FI42026B (en)van) 1969-12-31
NL6402114A (en)van) 1964-09-16
AT275291B (de) 1969-10-27
OA01611A (fr) 1969-09-20
CH402799A (fr) 1965-11-30
FR1359354A (fr) 1964-04-24
DK117264B (da) 1970-04-06
BE645176A (en)van) 1964-09-14

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