EP0077866A1 - Dispositif mécanique pour la commande réciproque des rubans portant les pinces dans un métier à tisser - Google Patents

Dispositif mécanique pour la commande réciproque des rubans portant les pinces dans un métier à tisser Download PDF

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Publication number
EP0077866A1
EP0077866A1 EP81830202A EP81830202A EP0077866A1 EP 0077866 A1 EP0077866 A1 EP 0077866A1 EP 81830202 A EP81830202 A EP 81830202A EP 81830202 A EP81830202 A EP 81830202A EP 0077866 A1 EP0077866 A1 EP 0077866A1
Authority
EP
European Patent Office
Prior art keywords
mechanical assembly
spur gear
effective
driving
pliers
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
EP81830202A
Other languages
German (de)
English (en)
Other versions
EP0077866B1 (fr
Inventor
Mario Crippa
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
Publication of EP0077866A1 publication Critical patent/EP0077866A1/fr
Application granted granted Critical
Publication of EP0077866B1 publication Critical patent/EP0077866B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/271—Rapiers
    • D03D47/272—Rapier bands
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/275—Drive mechanisms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/277—Guide mechanisms

Definitions

  • the present invention relates to a mechanical assembly, effective to reciprocately driving the pliers bearing tape in a textile loom.
  • Said pliers as mounted at one ena of corresponding tapes,as provided with a plurality or cross slots, in such a way as to be able of engaging with spur gears.
  • the task of the present invention is to eliminate the thereinabove cited drawback,by providing a mechanical assembly, effective to reciprocately driving the pliers bearing tapes in textile looms,having drastically reduced inertial masses.
  • a mechanical assembly effective to recirpcately driving the pliers bearing tapes in textile looms comprising a toothed pulley,eccentrically thereto there is pivoted a spur gear,supporting an arm member at one end thereof there is articulated a slider rigid with a toothed belt,said spur gear meshing with an internal gear,said toothed belt engaging with a second spur gear,meshing with said pliers bearing tape, said toothed pulley being driven,through a belt or the like driving member, by a driving pulley and eccentrically supporting the axis of said first spur gear meshing with said internal gear as mounted cantilever-wise on said loom shoulder.
  • said driving pulley is mounted at one end of a high speed operating shaft,bearing a brake assembly at both ends thereof and effective to transmit movement to the two ends of the swingable shaft.
  • Said first spur gear supports an arm member or crank, on the pin thereof there is pivoted a slider, formed by two adjoining plates and effective to clamp a portion of an endless toothed belt which, through transmission members and a tension member, engages the shaft or the second spur gear, this latter meshing with said pliers bearing tape.
  • said slider and crank may be joined to one another by means of interposed connecting
  • a device which restrains the tape only at the edge opposite to the comb, thereby said tape is able of sliding in a position nearly adhering to said comb.
  • Said tape guiding device consists of a L-shaped section,made rigid with the loom slay and bearing, at the free end of its horizontal wing, a plurality of vertically extending shaped plates,as evenly spaced, and provided,at the top thereof, with a parallel wall recess:at the top of the vertical wing of said section there is fixed a resilient material rectangular cross-section rod,provided with a suitably stiffened and abrasion resistant surface.
  • the mechanical assembly according to the present invention comprises a toothed pulley 1 driven, through a belt 2 or other suitable driving member,by a driving pulley 3.
  • This toothed driving pulley eccentrically supports the axis 4 of a spur gear 5,meshing with the teeth of an internal gear 6,as fixed, cantilever-wise,on the shoulder 7 of the loom.
  • Said spur gear supports a crank 8 to the pin thereof there is pivoted a slider 9, formed by two adjoining plates.
  • the slider 9 is effective to clamp a portion of a toothed belt 10 which, througn transmission members 11 and a tension member 12,engages the shaft 13 of a further spur gear 14.
  • this latter is driven with a planetary movement, in such a way as to cause the pin of the crank 8 to rectilinearly reciprocate.
  • the slider 9, therefore, drives, with a like reciprocating movement, the toothed belt 10, there by causing the spur gear 14 to rotatively reciprocate.
  • said driving pulley 3 is mounted at one end of a high speed operating shaft 17, bearing at both ends thereof a braking assembly 18, effective to transmit movement to the two ends of the swingable shaft 19.
  • the vertical wing 21' of said section member is located at one side of the loom comb 23 and supports, at the top thereof,an elastomaeric or plastics material rod 24,provided with a suitably stiffened and abrasion resistant surface.
  • These plates are provided with a top recess 26 in such a way as to jointly provide a sliding guide effective to restrain an edge of the tapes 27 bearing the pliers 28.
  • the aforesaid resilient material rod 24 is located at a slightly lower level than the theretical sliding plane of said tapes,in order not to hinder the passage of the warp threads 29, not rised by the heddles.
  • That same rod anyhow,advantageously acts as a damping member, against possible vibrations of said pliers bearing tapes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP81830202A 1981-09-18 1981-10-21 Dispositif mécanique pour la commande réciproque des rubans portant les pinces dans un métier à tisser Expired EP0077866B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT24027/81A IT1196417B (it) 1981-09-18 1981-09-18 Gruppo meccanico,atto a concretizzare il movimento alternato dei nasttri porta pinze,nei telai tessili
IT2402781 1981-09-18

Publications (2)

Publication Number Publication Date
EP0077866A1 true EP0077866A1 (fr) 1983-05-04
EP0077866B1 EP0077866B1 (fr) 1986-08-27

Family

ID=11211558

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81830202A Expired EP0077866B1 (fr) 1981-09-18 1981-10-21 Dispositif mécanique pour la commande réciproque des rubans portant les pinces dans un métier à tisser

Country Status (3)

Country Link
EP (1) EP0077866B1 (fr)
DE (1) DE3175226D1 (fr)
IT (1) IT1196417B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0406926A1 (fr) * 1989-07-06 1991-01-09 Picanol N.V. Métier à tisser à griffes avec guidage des rubans

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2315559A1 (fr) * 1975-06-24 1977-01-21 Dewas Raymond Machine a tisser a alimentation exterieure
FR2317399A1 (fr) * 1975-07-10 1977-02-04 Albatex Ag Guidage des pinces porte-trame a l'interieur de la foule sur metiers a tisser sans navette
BE867817A (nl) * 1978-06-05 1978-10-02 Lefebre Pannecoucke Verbeteringen aan de aandrijving van rapieren in weefmachines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2315559A1 (fr) * 1975-06-24 1977-01-21 Dewas Raymond Machine a tisser a alimentation exterieure
FR2317399A1 (fr) * 1975-07-10 1977-02-04 Albatex Ag Guidage des pinces porte-trame a l'interieur de la foule sur metiers a tisser sans navette
BE867817A (nl) * 1978-06-05 1978-10-02 Lefebre Pannecoucke Verbeteringen aan de aandrijving van rapieren in weefmachines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0406926A1 (fr) * 1989-07-06 1991-01-09 Picanol N.V. Métier à tisser à griffes avec guidage des rubans
BE1004305A3 (nl) * 1989-07-06 1992-10-27 Picanol Nv Grijperweefmachine met lansgeleiding.
US5183084A (en) * 1989-07-06 1993-02-02 Picanol N.V., Naamloze Vennootschap Rapier guide with two series of guide elements

Also Published As

Publication number Publication date
IT1196417B (it) 1988-11-16
IT8124027A0 (it) 1981-09-18
EP0077866B1 (fr) 1986-08-27
DE3175226D1 (en) 1986-10-02

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