EP0501927A1 - Verfahren zum Variieren der Wölbung der mit einer Fusspitzennähmaschine genähten Strumpffusspitze und Vorrichtung zur Durchführung des genannten Verfahrens - Google Patents

Verfahren zum Variieren der Wölbung der mit einer Fusspitzennähmaschine genähten Strumpffusspitze und Vorrichtung zur Durchführung des genannten Verfahrens Download PDF

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Publication number
EP0501927A1
EP0501927A1 EP92830054A EP92830054A EP0501927A1 EP 0501927 A1 EP0501927 A1 EP 0501927A1 EP 92830054 A EP92830054 A EP 92830054A EP 92830054 A EP92830054 A EP 92830054A EP 0501927 A1 EP0501927 A1 EP 0501927A1
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EP
European Patent Office
Prior art keywords
sewing
stocking
rotating
plane
sewn
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.)
Granted
Application number
EP92830054A
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English (en)
French (fr)
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EP0501927B1 (de
Inventor
Vinicio Gazzarrini
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.)
Solis SRL
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Solis SRL
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Filing date
Publication date
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Publication of EP0501927A1 publication Critical patent/EP0501927A1/de
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Publication of EP0501927B1 publication Critical patent/EP0501927B1/de
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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B23/00—Sewing apparatus or machines not otherwise provided for
    • D05B23/007—Sewing units for assembling parts of knitted panties or closing the stocking toe part
    • D05B23/009—Toe closers

Definitions

  • the present invention relates to a method for varying the curvature of the sewn toe of the stockings with a machine for sewing the toe and a device for its implementation.
  • sewing machines for hosiery and pantyhose spikes include a carousel with several tubular arms having the function of supporting and turning the hosiery, in which each tube is provided with two wings which slide longitudinally to transfer the spike from the bottom to the beyond the end of the tube on a horizontal disc rotating around its vertical axis, in a predetermined position relative to a cutting and sewing machine.
  • This disc is associated with a plate located above and slaved to an alternating vertical movement which has the function of holding in place, during sewing, the bottom point on the rotating disc located below in front of the needle. the cutting and sewing machine.
  • this support and blocking device at the bottom during sewing has the disadvantage that the arc of curvature of the seam made by the sewing machine is directly linked to the radius of the disc and that consequently the variation in the curvature of the sewn toe is only possible by replacing the disc, resulting in a loss of time which is incompatible with the production requirements of stockings or tights.
  • the object of the present invention is to eliminate this drawback by proposing a method and a device which make it possible to vary the curvature of the sewn point at will without replacing the rotating support from the bottom, but by a simple and rapid operation of selection and / or for adjusting the tip tension means.
  • the advantages obtained thanks to the present invention essentially consist in the fact that it is possible to permanently modify the curvature of the sewn tip, in the direction of increasing or respectively decreasing its radius of curvature compared to that of the plane sewing turn; that the direction of the arc of curvature as well as the amplitude of the variation thereof can be easily adjusted, in very wide intervals, thanks to the selection and adjustment of the stroke of the bottom tip gripping means without requiring any replacement of the components of the stitch sewing machine.
  • FIG. 1 shows a schematic view from above of a device for varying the curvature of the stitch sewn from the bottom by means of a machine for sewing the tips in accordance with the invention, in the position making it possible to obtain a curvature normal, i.e. as in FIG. 1A;
  • FIG. 2 shows the device of FIG. 1, in the position allowing a reduction in the curvature to be obtained, that is to say as in FIG. 2A;
  • FIG. 3 shows the device of FIG.
  • FIG. 4 shows the side view of the device of FIG. 1, in the position with the gripping means of the tip open;
  • FIG. 5 shows the device of FIG. 4, in the rest position and with the gripping means closed;
  • FIG. 6 shows the top view of the device of FIG. 1, with the remote lateral gripping means;
  • FIG. 7 shows the side view of the device of FIG. 6;
  • FIG. 8 shows the front view of the device of FIG. 6;
  • FIG. 9 shows the top view of the device of FIG. 1, with the central gripping means moved back;
  • FIG. 10 shows the side view of the device of FIG. 9;
  • FIG. 11 shows the front view of the device of FIG. 9;
  • FIG. 12 shows the top view of a variant of the device of FIG. 1 according to the invention, in the rest position and with the gripping means open;
  • FIG. 13 shows the side view of the device of FIG. 12;
  • FIG. 14 shows the rear view of the device of FIG. 12;
  • the elastic deformation imposed on the fabric of the bottom point allows, after the elastic return of the sewn point, to obtain a variation of the final curvature of the seam compared to that obtained with the rotating seam plane, the value of which is proportional to the amplitude of the stroke imposed on the central zone 2 or respectively on the two lateral zones 21, before sewing.
  • FIGS. 1A to 3A The final result is illustrated in FIGS. 1A to 3A in which the double line 5 represents the start of the fabric of the point and line 6 represents the seam line; in particular, we note in FIG. 1A that no intervention was carried out on the point before sewing so that the seam line 6 obtained is of the traditional type, that is to say with a curvature which is determined by the radius of the rotating seam plane 4.
  • Fig. 2A it is noted that the tension exerted on the central portion of the bottom tip relative to the lateral ones 21 before sewing 6 causes, after sewing, a seam line whose curvature has a greater radius than that of the Fig. 1A.
  • Fig. 3A it is noted that the tension exerted, before sewing, on the lateral portions 21 relative to the central portion 20 of the bottom 2 enters, after sewing, a seam line whose curvature has a radius smaller than that of Fig. 1A.
  • the pliers 14,16 are open and in the advanced position, that is to say as close as possible to the seam plane, and the bottom is on the turning tube with the sewing point protruding from that -this under the action of the fins of the turning tube which are in the advanced position so that the bottom point is on the stitching plane of the stitch sewing machine and with the free end in the open mouth of the three pliers 14.16; then, depending on the desired curvature of the stitch sewn, the central clamp 14 or external clamps 16 are closed and, successively, the corresponding cylinder 21 or 22 is actuated so as to obtain the recoil of the central clamp 14 or of the lateral ones, which makes it possible to obtain the elastic tension of the central part or respectively of the lateral parts of the bottom point.
  • the plate which is located above the rotating seam plane is actuated to descend and block the bottom point thus stretched on the seam plane placed below.
  • the pliers or pliers which carried out the tension at the bottom are deactivated, that is to say open, and the sewing is carried out in the traditional way, that is to say by turning in front of the needle of the sewing machine the turning seam plane and the plate with the interposed bottom.
  • the plate is deactivated and this, when going up, releases the sewn stocking; simultaneously, the cylinder 21 or 22 which is in the position of maximum recoil of the gripper or grippers is actuated so as to bring the gripper (s) which are already open into the start of cycle position.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Socks And Pantyhose (AREA)
  • Treatment Of Fiber Materials (AREA)
EP92830054A 1991-02-26 1992-02-05 Verfahren zum Variieren der Wölbung der mit einer Fusspitzennähmaschine genähten Strumpffusspitze und Vorrichtung zur Durchführung des genannten Verfahrens Expired - Lifetime EP0501927B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITFI910039 1991-02-26
ITFI910039A IT1246679B (it) 1991-02-26 1991-02-26 Metodo per variare la curvatura della punta cucita delle calze con una macchina cucipunte e dispositivo per attuare il detto metodo.

Publications (2)

Publication Number Publication Date
EP0501927A1 true EP0501927A1 (de) 1992-09-02
EP0501927B1 EP0501927B1 (de) 1995-07-26

Family

ID=11349485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92830054A Expired - Lifetime EP0501927B1 (de) 1991-02-26 1992-02-05 Verfahren zum Variieren der Wölbung der mit einer Fusspitzennähmaschine genähten Strumpffusspitze und Vorrichtung zur Durchführung des genannten Verfahrens

Country Status (6)

Country Link
US (1) US5207165A (de)
EP (1) EP0501927B1 (de)
JP (1) JPH06198089A (de)
CA (1) CA2061776A1 (de)
DE (1) DE69203625T2 (de)
IT (1) IT1246679B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0802271A1 (de) * 1996-04-16 1997-10-22 MATEC S.r.l. Vorrichtung zum Nähen des Zehenteils von schlauchförmigen gestrickten Produkten

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1316339B1 (it) * 2000-02-04 2003-04-10 Guerrino Rumi Apparecchiatura e procedimento per alimentare in automatico unacucitrice della punta di una calza
US6779472B1 (en) 2003-03-25 2004-08-24 Sara Lee Corporation Hosiery toe closing apparatus and method
ITFI20040259A1 (it) * 2004-12-10 2005-03-10 Golden Lady Co Spa Dispositivo e metodo per manipolare manufatti tubolari a maglia come calzini o simili per eseguire la cucitura della punta
ITMI20042084A1 (it) * 2004-11-02 2005-02-02 Cesare Colosio S P A Dispositivo di cucitura automatica particolarmente per macchine per calze

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1545731A (fr) * 1967-06-14 1968-11-15 Nittex Ag Perfectionnement aux dispositifs pour fermer la pointe des bas ou autres articles analogues
US4133280A (en) * 1976-10-26 1979-01-09 Takatori Machinery Works, Ltd. Automatic method and apparatus for closing a toe end of a hose utilizing a straight line stitch
EP0204058A1 (de) * 1985-05-24 1986-12-10 SOLIS S.r.l. Verfahren und Vorrichtung um, zwecks Nähens, die Zehenden eines Strumpfes automatisch auf das offene Ende eines Wenderohres zu positionieren

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5431063A (en) * 1977-08-11 1979-03-07 Sanwa Tekki Corp Metal plate brazing
JPS5831953B2 (ja) * 1979-01-30 1983-07-09 株式会社タカトリ機械製作所 ホ−スのトウ部をクロ−ズする方法及び装置
US4444140A (en) * 1981-12-14 1984-04-24 Monarch Knitting Machinery Corporation Method of making panty hose and apparatus to make same
GB8730199D0 (en) * 1987-12-24 1988-02-03 Detexomat Machinery Ltd Hosiery toe closing method & apparatus
US5040475A (en) * 1989-01-28 1991-08-20 Sara Lee Corporation Material handling system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1545731A (fr) * 1967-06-14 1968-11-15 Nittex Ag Perfectionnement aux dispositifs pour fermer la pointe des bas ou autres articles analogues
US4133280A (en) * 1976-10-26 1979-01-09 Takatori Machinery Works, Ltd. Automatic method and apparatus for closing a toe end of a hose utilizing a straight line stitch
EP0204058A1 (de) * 1985-05-24 1986-12-10 SOLIS S.r.l. Verfahren und Vorrichtung um, zwecks Nähens, die Zehenden eines Strumpfes automatisch auf das offene Ende eines Wenderohres zu positionieren

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0802271A1 (de) * 1996-04-16 1997-10-22 MATEC S.r.l. Vorrichtung zum Nähen des Zehenteils von schlauchförmigen gestrickten Produkten

Also Published As

Publication number Publication date
ITFI910039A0 (it) 1991-02-26
DE69203625T2 (de) 1996-04-18
US5207165A (en) 1993-05-04
IT1246679B (it) 1994-11-24
CA2061776A1 (en) 1992-08-27
ITFI910039A1 (it) 1992-08-26
EP0501927B1 (de) 1995-07-26
JPH06198089A (ja) 1994-07-19
DE69203625D1 (de) 1995-08-31

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