EP0140842A1 - Vorrichtung für die Zweirichtungs-Längsbewegung einer Stange in von vorher festgesetzter Amplitude von aufeinanderfolgenden Versetzungen - Google Patents

Vorrichtung für die Zweirichtungs-Längsbewegung einer Stange in von vorher festgesetzter Amplitude von aufeinanderfolgenden Versetzungen Download PDF

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Publication number
EP0140842A1
EP0140842A1 EP84830264A EP84830264A EP0140842A1 EP 0140842 A1 EP0140842 A1 EP 0140842A1 EP 84830264 A EP84830264 A EP 84830264A EP 84830264 A EP84830264 A EP 84830264A EP 0140842 A1 EP0140842 A1 EP 0140842A1
Authority
EP
European Patent Office
Prior art keywords
rod
rods
rack
operative position
tailpiece
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.)
Withdrawn
Application number
EP84830264A
Other languages
English (en)
French (fr)
Inventor
Benito Stoppazzini
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.)
EMM Emiliana Macchine Maglierie SRL
Original Assignee
EMM Emiliana Macchine Maglierie SRL
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 EMM Emiliana Macchine Maglierie SRL filed Critical EMM Emiliana Macchine Maglierie SRL
Publication of EP0140842A1 publication Critical patent/EP0140842A1/de
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B11/00—Straight-bar knitting machines with fixed needles
    • D04B11/10—Straight-bar knitting machines with fixed needles with provision for incorporating internal threads in laid-in fabrics

Definitions

  • the invention relates to a device for the bidirectional movement longitudinally of a bar in a succession of displacements of predetermined constant amplitude, particularly suitable for moving the bars of straight knitting machines to which are locked the stops for the slide that carries the thread guide.
  • inalay stitches are formed and it is necessary to displace the said stops by amounts equal to or multiples of the pitch of the needles installed in the needle beds of knitting machines.
  • the object of the invention is to make available a device that solves the problem to which reference has been made above through a technical solution of electromechanical type that is extremely simple, functional, reliable, limited in volume, easy to maintain, and considerably cheaper than the methods known already that carry out an identical function.
  • the device according to the invention for the bidirectional movement longitudinally of a bar in a succession of displacements of predetermined constant amplitude, characterized by the fact of comprising : a rack locked to and in alignment with the said bar; means for guiding the longitudinal translation of the said rack; two rods side-by-side in a longitudinal plane and each positioned with the internal extremity thereof in front of the teeth of the said rack, it being possible for the said rods to traverse axially as well as to oscillate with respect to the axes thereof since the internal extremity of each rod is provided with a corresponding transverse tailpiece so dimensioned as to allow the insertion thereof in a space in between two of the said teeth; elastic means that exert an effect on the said rods and define for the longitudinal oscillation of each rod, in cooperation with corresponding transverse abutment means, the extreme internal position with the relevant tailpiece positioned at a point corresponding to, and in front of, a space in between two of the said teeth; independent means for operating the said
  • a support frame provided with a longitudinal slot 2 inside which slides, guided, a rack 3 whose teeth 3a and spaces 3b there in between are, in the example described herein, pointing upwards.
  • the said rack is locked to a bar 4 aligned there with.
  • each rod In the top part of the frame there are two through holes (vertical in the case described) inside each of which is freely inserted the centre part of a rod 5 and 6. In consequence of the said insertion, each rod is able to move axially as well as to oscillate with respect to the axis thereof.
  • each rod is provided with a plate 7 flush up agains the corresponding armature 8a of an electromagnet 8.
  • the said abutment is permanently ensured by a spring 9 enshrouding the part of the rod that protrudes from the frame and interposed between this and the said plate.
  • each rod that is to say in the internal extremity thereof shown globally at 10
  • two parallel flat parts 11 are provided laterally in the lower extremity of each rod (that is to say in the internal extremity thereof) shown globally at 10.
  • the rods 5 and 6 oscillate solely in a longitudinal direction with the corresponding internal extremity thereof positioned in front of-the teeth of the rack.
  • Each extremity 10 has at the bottom, a transverse tailpiece 13 so dimensioned as to allow the insertion thereof in a space 3b in between two of the said teeth 3a, an internal transverse surface 14 commencing at the underneath inside edge of the tailpiece 13, and what can be defined a "heel" .15 positioned on the same side as the surface 14 and extending inwards.
  • transverse block 16 Placed between the transverse surfaces 14 of the two rods is a transverse block 16 positioned above the rack.
  • the external transverse surfaces 16a and 16b of the block 16 serve as means for the abutment there with of the said internal surfaces 14, the said abutment being ensured, in the absence of external force being applied to the rods, by a spring 17 that connects one rod to the other.
  • the tailpiece 13 With the internal extremity 10 of each rod flush up against the corresponding surface 16a or 16b. of the block 16, the tailpiece 13 is positioned at a point corresponding to, and in front of, a space 3b in between two teeth 3a of the rack 3 ( Figure 1).
  • a slide 18 the tranverse extremities of which are integral with corresponding guide elements 19. Laterally the lower part of the slide 18 has two transverse limbs 18a and 18b.
  • Each guide element 19 incorporates two pairs of forked parts 20 interposed between blocks 21 for guiding the longitudinal translation of the said element, and has a slot'22 in the centre with which engages a cam 23 carried in rotation by a shaft 24.
  • the rack 3 ( and obviously the bar 4 integral there with) are carried to the right, by means of the said tailpiece, at the time the limb 18a intercepts, while being displaced towards the right, the heel 15 of the rod 5; the actual displacement value of the rack 3 is equal to one predetermined step ( Figure 3).
  • the displacement from the internal position I to the external position E that the extremity 10 undergoes is, in fact, constant because of the fact that the internal position I is univocally determined by the abutting surface 16a of the block 16, because of the fact that the displacement of the slide 18 between positions M and K is constant, and because of the fact that the said positions are equidistant from the inactive position R.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Transmission Devices (AREA)
EP84830264A 1983-10-10 1984-10-03 Vorrichtung für die Zweirichtungs-Längsbewegung einer Stange in von vorher festgesetzter Amplitude von aufeinanderfolgenden Versetzungen Withdrawn EP0140842A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT03579/83A IT1195423B (it) 1983-10-10 1983-10-10 Dispositivo per la movimentazione longitudinale di un'asta,in entrambi i versi,secondo una successione di spostamenti di ampiezza costante prefissata
IT357983 1983-10-10

Publications (1)

Publication Number Publication Date
EP0140842A1 true EP0140842A1 (de) 1985-05-08

Family

ID=11110079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84830264A Withdrawn EP0140842A1 (de) 1983-10-10 1984-10-03 Vorrichtung für die Zweirichtungs-Längsbewegung einer Stange in von vorher festgesetzter Amplitude von aufeinanderfolgenden Versetzungen

Country Status (2)

Country Link
EP (1) EP0140842A1 (de)
IT (1) IT1195423B (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1518646A (fr) * 1965-09-14 1968-03-29 Armes De Guerre Fab Nat Dispositif amortisseur pour boîte de friction de métier à tricoter
DE1809654A1 (de) * 1968-11-19 1970-06-25 Schubert & Salzer Maschinen Vorrichtung zum selbsttaetigen Anpassen des Kulierweges an die jeweilige Arbeitsbreite bei flachen Kulierwirkmaschinen
DE2026463A1 (de) * 1969-05-28 1970-12-03 S.A. Monk (Sutton-in-Asfield) Ltd., Sutton-in-Asfield, Nottinghamshire (Großbritannien) Strick- bzw. Wirkmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1518646A (fr) * 1965-09-14 1968-03-29 Armes De Guerre Fab Nat Dispositif amortisseur pour boîte de friction de métier à tricoter
DE1809654A1 (de) * 1968-11-19 1970-06-25 Schubert & Salzer Maschinen Vorrichtung zum selbsttaetigen Anpassen des Kulierweges an die jeweilige Arbeitsbreite bei flachen Kulierwirkmaschinen
DE2026463A1 (de) * 1969-05-28 1970-12-03 S.A. Monk (Sutton-in-Asfield) Ltd., Sutton-in-Asfield, Nottinghamshire (Großbritannien) Strick- bzw. Wirkmaschine

Also Published As

Publication number Publication date
IT1195423B (it) 1988-10-19
IT8303579A0 (it) 1983-10-10

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): CH DE FR GB LI

17P Request for examination filed

Effective date: 19851015

17Q First examination report despatched

Effective date: 19860922

D17Q First examination report despatched (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19880123

RIN1 Information on inventor provided before grant (corrected)

Inventor name: STOPPAZZINI, BENITO