EP0317528B1 - Mechanische Vorrichtung, um zwei parallele Nadeln in ihrer Stellung zu vertauschen, ohne deren Orientierung zu verändern - Google Patents

Mechanische Vorrichtung, um zwei parallele Nadeln in ihrer Stellung zu vertauschen, ohne deren Orientierung zu verändern Download PDF

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Publication number
EP0317528B1
EP0317528B1 EP88830496A EP88830496A EP0317528B1 EP 0317528 B1 EP0317528 B1 EP 0317528B1 EP 88830496 A EP88830496 A EP 88830496A EP 88830496 A EP88830496 A EP 88830496A EP 0317528 B1 EP0317528 B1 EP 0317528B1
Authority
EP
European Patent Office
Prior art keywords
mechanical device
needles
head
pair
shaft
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
Application number
EP88830496A
Other languages
English (en)
French (fr)
Other versions
EP0317528A1 (de
Inventor
Emilio Spalletti
Ivo Carpineti
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT88830496T priority Critical patent/ATE72588T1/de
Publication of EP0317528A1 publication Critical patent/EP0317528A1/de
Application granted granted Critical
Publication of EP0317528B1 publication Critical patent/EP0317528B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B55/00—Needle holders; Needle bars
    • D05B55/02—Devices for fastening needles to needle bars
    • 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
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B15/00—Machines for sewing leather goods

Definitions

  • the subject of this patent application for an industrial invention concerns a mechanical device, for installation on automatic sewing machines, for repeatedly inverting the position, while leaving the direction unchanged, of a pair of needles fitted side by side, co-operating with a single "crochet” and capable of carrying out special, particularly decorative, sewing stitches, which are often used in the footwear sector and more generally in the leather industry.
  • a complicated system of levers is used, or a mechanism consisting of a pair of vertical rods supporting the needles by means of clamps housed and rotating in a tubular supporting element which is pulled repeatedly, by a suitable means of control, in alternating rotations of 180° around its own longitudinal axis and in alternating vertical strokes, at the same time. (DE.C. 258 820).
  • this pair of rods projecting from the upper end of this tubular supporting element, are fixed suitably profiled plates which are fitted to fixed structures of the sewing machine that keep the direction of the two above rods unaltered during their reciprocal exchange of position after the rotation of half a turn of the above tubular element.
  • the mechanism according to the invention consists of a vertical driving shaft perfectly housed inside a non-rotating tubular supporting element, with the possibility of rotating around its longitudinal axis.
  • This driving shaft ends at the base with a cylindrical head on whose side surfaces, two grooves are cut in diametrically opposite position but staggered, and suitable for housing two collars in which the two needles, fitted side by side, are respectively inserted and fixed by means of a small radial grub screw and inserted from the bottom into two appropriate small holes, in axial position and in diametrically opposite position on the bottom base of the above cylindrical head and which respectively open into the two above grooves.
  • the cylindrical head houses perfectly in a non-rotating sleeve, with which the tubular element ends at the bottom and where the driving shaft can rotate together with the cylindrical head.
  • two passing transverse slots are cut in a diametrically opposite, but staggered position, through which there is access to the grooves at the back on the above cylindrical head, so much so that the small fixing grub screws of the needles in the respective supporting collars are inserted from the outside through these slots and are then screwed in the radial, threaded holes on the above collars, previously fitted in the respective housing grooves.
  • this driving shaft is pulled repeatedly in alternating rotations of half a turn, which result in a mutual exchange of the positions of the needles, which, being inserted in the above cylindrical head, are rotated by the same around the longitudinal axis of the driving shaft.
  • the mechanical device consists of a driving shaft (1), with vertical axis ending at the base with a cylindrical head (1a), on whose side walls, two grooves (2a and 2b) are cut in a diametrically opposite position, but staggered, into which two holes open (3a and 3b), realized in axial direction from the bottom of the base of this cylindrical head (1a), opening into the grooves (2a and 2b) and terminating at the top of the latter into which two collars (4a and 4b) are inserted where the end upper sections (6A and 6B) of the needles fitted side by side (6a and 6b) are inserted and fixed, by means of small radial grub screws (5a and 5b), which are free to rotate around their own longitudinal axes, should they be pulled by the respective supporting collar (4a and 4b).
  • the driving shaft (1) is now inserted and free to turn in a tubular supporting element (7) ending at the base with a sleeve (7a) in which the cylindrical head (1a) can turn.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Structure Of Telephone Exchanges (AREA)
  • Testing Or Measuring Of Semiconductors Or The Like (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Replacement Of Web Rolls (AREA)

Claims (3)

1. Mechanische Vorrichtung, die auf Nähmaschinen zur wiederholten Umstellung von zwei nebeneinanderstehenden Nadeln bei Behalten derselben Ausrichtung montiert wird. Diese Vorrichtung wird von einer Steuerwelle (1) charakterisiert, die eine senkrechte Achse hat, die in einen Zylinderkopf (1a) auf der unteren Seite ausläuft. Auf der Seitenwand dieses Kopfes werden zwei genau entgegengesetzte und in der Höhe versetzte Nuten (2a und 2b) ausgehöhlt. Zwei Löcher laufen auf diese Nuten hinaus. Sie werden von der unteren Seite des Kopfes (1a) gebohrt und laufen auf den Boden Der Nuten (2a und 2b) hinaus. Zwei Ringe (4a und 4b) werden in diese Nuten eingesteckt. Die oberen Endseiten (6a und 6b) der nebeneinanderstehenden Nadeln (6a und 6b) werden durch Radialschrauben (5a und 5b) in diese Nuten eingesteckt und befestigt. Es wird vorgesehen, dass die Steuerwelle (1) in ein röhrenförmiges Organ (7) eingesteckt wird, sich aber hier auch frei bewegen Kann. Die untere Seite dieses Organs läuft in eine Büchse (7a) hinaus, innerhalb der, der Zylinderkopf (1a) sich drehen kann und auf deren Seitenwand querlaufende Langschlitze (8a und 8b) zu finden sind. Diese Schlitze schauen genau auf die dahinterliegenden Nuten (2a und 2b) und haben eine solche quere Ausdehnung, dass die Befestigungsschrauben (5a und 5b) wahrend einer Halbumdrehung des kopfes (1a) in Beruhrung mit den Rändern der Langschlitze kommen und zu einer Halbumdrehung in entgegengesetzter Richtung des Kopfes (1a), der Ringe (4a und 4b) und der nebeneinanderstehenden Nadeln (6a und 6b) führen.
2. Mechanische Vorrichtung, gemass Anspruch 1). Sie wird von Motoren charakterisiert, die auf die obere Fläche der Welle (1) tätig sind und, die abwechselnde Umdrehungen um 180° der Welle um ihre senkrechte Achse fördern.
3. Mechanische Vorrichtung, gemass Anspruch 1). Sie wird von einem röhrenförmigen Organ (7) charakterisiert, das undrehbar ist und, das mit solchen Mitteln ausgestattet ist, die seine senkrechten abwechselnden Hübe aufeinander aber auch in bezug auf die abwechselnden Umdrehungen der Welle (1) abgestimmt sind.
EP88830496A 1987-11-19 1988-11-21 Mechanische Vorrichtung, um zwei parallele Nadeln in ihrer Stellung zu vertauschen, ohne deren Orientierung zu verändern Expired EP0317528B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88830496T ATE72588T1 (de) 1987-11-19 1988-11-21 Mechanische vorrichtung, um zwei parallele nadeln in ihrer stellung zu vertauschen, ohne deren orientierung zu veraendern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT64587 1987-11-19
IT8700645A IT1213617B (it) 1987-11-19 1987-11-19 Dispositivo meccanico da installare su macchine cucitrici per invertire ripetutamente la posizione pur lasciandone inalterato l'orientamento di una coppia di aghi affiancati

Publications (2)

Publication Number Publication Date
EP0317528A1 EP0317528A1 (de) 1989-05-24
EP0317528B1 true EP0317528B1 (de) 1992-02-12

Family

ID=11297003

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88830496A Expired EP0317528B1 (de) 1987-11-19 1988-11-21 Mechanische Vorrichtung, um zwei parallele Nadeln in ihrer Stellung zu vertauschen, ohne deren Orientierung zu verändern

Country Status (5)

Country Link
EP (1) EP0317528B1 (de)
AT (1) ATE72588T1 (de)
DE (1) DE3868384D1 (de)
ES (1) ES2030532T3 (de)
IT (1) IT1213617B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1285454B1 (it) * 1996-01-25 1998-06-08 Mario Ciucani Macchina perfezionata per la cucitura di articoli vari, in particolare articoli di pelle e similari

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE258820C (de) *
IT208716Z2 (it) * 1986-09-01 1988-05-28 Ciucani Mario Dispositivo per l'azionamento e l' orientamento di una coppia di aghi di una macchina cucitrice automatica

Also Published As

Publication number Publication date
DE3868384D1 (de) 1992-03-26
ES2030532T3 (es) 1992-11-01
IT8700645A0 (it) 1987-11-19
EP0317528A1 (de) 1989-05-24
IT1213617B (it) 1989-12-29
ATE72588T1 (de) 1992-02-15

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