EP0077866B1 - 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

Info

Publication number
EP0077866B1
EP0077866B1 EP81830202A EP81830202A EP0077866B1 EP 0077866 B1 EP0077866 B1 EP 0077866B1 EP 81830202 A EP81830202 A EP 81830202A EP 81830202 A EP81830202 A EP 81830202A EP 0077866 B1 EP0077866 B1 EP 0077866B1
Authority
EP
European Patent Office
Prior art keywords
driving
gear wheel
toothed
mechanical assembly
pulley
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
EP81830202A
Other languages
German (de)
English (en)
Other versions
EP0077866A1 (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

Links

Images

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 reciprocatingly drive the gripper bearing tape in a textile loom.
  • weft threads are inserted into the warp threads by means of gripper pairs, as suitably designed and driven with a reciprocating movement, in opposite directions.
  • Said grippers are mounted at one end of corresponding tapes, as provided with a plurality of cross slots, in such a way as to be able of engaging with planet gears.
  • French Patent No. 2315559 discloses such a mechanism which comprises a large diameter pulley which drives a crank-system for transforming the rotary movement into an alternative rectilinear movement. That mechanism has the drawback of having a high inertial mass.
  • the task of the present invention is to eliminate the thereinabove cited drawback, by providing a mechanical assembly, effective to reciprocately drive the grippers bearing tapes in textile looms, having drastically reduced inertial masses.
  • the driving pulley of the subject assembly 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.
  • the first planet 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 of the second planet gear, this latter meshing with the gripper bearing tape.
  • 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 comprises a toothed pulley 1 driven, through a belt 2 or other suitable driving member, by a driving pulley 3 driven by a driving shaft 3' of the loom.
  • the toothed driven pulley 1 eccentrically supports the shaft 4 of a planet gear 5, meshing with the teeth of an internal gear 6, as fixed, cantilever- wise, on the shoulder 7 of the loom.
  • Said planet gear 5 rigidly supports a crank 8 to the pin thereof there is pivoted a slider 9, formed by two adjoining plates and able of sliding within guides formation as provided at the outer end of the crank 8.
  • the slider 9 is effective to clamp a portion of a toothed belt 10 which, through transmission members 11 and a tension member 12, engages the shaft 13 of a further planet 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, thereby causing the planet 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.
  • a tape guiding device 20 formed by an L-shaped section member 21 made rigid with the loom slay 22.
  • 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 elastomeric 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 grippers 28.
  • the aforesaid resilient material rod 24 is located at a slightly lower level than the theoretical 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 gripper bearing tapes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Claims (2)

1. Ensemble mécanique apte à actionner avec un mouvement alternativ le bandes supportant les pinces dans les metiers à tisser comprenant un poulie d'actionnement dentée (3) actionnée par un arbre d'actionnement dudit métier, un sistème à bielle-manivelle (5, 6, 8, 9) et des moyens pour la transmission du mouvement alternativ de ce système bielle-manivelle (5, 6, 8, 9) à un élément à engrenage actionnant le ruban support des pinces, caractérisé en ce que ledit système bielle-manivelle comprend une roue dentée engranante (5) avec la surface dentée intérieure d'un engrenage annulaire fixe (6), un élément à bras (8) fixé à ladite roue dentée (5), un élément glissant (9) solidaire d'un ruban denté (10) et supporté d'une manière oscillante en correspondance d'une extrémité dudit élément à bras (8), ledit ruban (10) engageant une roue dentée (14) actionnant ledit ruban (15) support des pinces, et en ce que ledit ensemble comprend en outre une poulie dentée actionnée (1) sur laquelle est montée d'une manière excentrique et de manière à tourner ladite roue dentée (5) au moyen d'un élément à arbre (4), ladite poulie actionnée étant disposée sensiblement dans le même plan vertical de ladite poulie d'actionnement (3), un ruban dente (2) étant pourvu entrainé autour de ladite poulie d'actionnement et de ladite poulie actionnée (1) de manière à faire tourner ladite poulie actionnée (1) et ladite roue dentée (5) pour déplacer d'une manière alternative ledit élément à glissement dans un plan sensiblement vertical.
2. Ensemble mécanique selon la revendication 1, caractérisé en ce que ledit arbre d'actionnement (3') est pourvu d'un ensemble de freinage respectif en correspondance de chaque extrémité.
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
IT2402781 1981-09-18
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

Publications (2)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1004305A3 (nl) * 1989-07-06 1992-10-27 Picanol Nv Grijperweefmachine met lansgeleiding.

Family Cites Families (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
CH589736A5 (fr) * 1975-07-10 1977-07-15 Albatex Ag
BE867817A (nl) * 1978-06-05 1978-10-02 Lefebre Pannecoucke Verbeteringen aan de aandrijving van rapieren in weefmachines

Also Published As

Publication number Publication date
EP0077866A1 (fr) 1983-05-04
IT1196417B (it) 1988-11-16
DE3175226D1 (en) 1986-10-02
IT8124027A0 (it) 1981-09-18

Similar Documents

Publication Publication Date Title
SU1637668A3 (ru) Привод ленточной рапиры с захватным устройством бесчелночного ткацкого станка
GB2033933A (en) Needle ribbon loom
EP0077866B1 (fr) Dispositif mécanique pour la commande réciproque des rubans portant les pinces dans un métier à tisser
US4529016A (en) Apparatus for inserting weft wires in a weaving loom
KR100517042B1 (ko) 직기에서의 식서형성장치
CA1118319A (fr) Dispositif d'avance de la trame sur metier a tisser
US5076331A (en) Pile cutter for face to face weaving loom
US5247968A (en) Projectile loom having a composite material multiple weft device
US4071056A (en) Lance driving mechanism for shuttleless looms
US4176692A (en) Rotating driving mechanism for imparting reciprocatory motion to a driven element
US3480046A (en) Driving mechanism for the weft inserters of shuttleless looms
US3955603A (en) Looms provided with means for making movement thereof uniform
EP0519550A1 (fr) Dispositif de commande d'un mécanisme de formation de la foule des lisières
DE69514998T2 (de) Vorrichtung zum Führen der Bewegung eines Greiferpaares durch das Fach von Webmaschinen
CN1045642C (zh) 剑杆织机中的纬纱插入设备
EP0615013B1 (fr) Métier à tisser en grande largeur à fausse navette
US4100941A (en) Rapier looms
US3378041A (en) Shuttle drive
KR940001737Y1 (ko) 레피어직기의 레피어와 리드의 구동장치
US3951178A (en) Shuttleless loom
KR800000841Y1 (ko) 레피아식 직기의 레피아 구동장치
SU1432107A1 (ru) Устройство дл прокладывани уточной нити на лентоткацком станке
US4526212A (en) Actuating device for reciprocating grippers in shuttleless looms
US4174737A (en) Mechanical device for moving the lifters of the weaving machines
US4497347A (en) Mechanism for actuating the weft-inserting needles of a weaving loom

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE FR GB LI NL SE

17P Request for examination filed

Effective date: 19831021

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE FR GB LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19860827

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19860831

REF Corresponds to:

Ref document number: 3175226

Country of ref document: DE

Date of ref document: 19861002

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
GBPC Gb: european patent ceased through non-payment of renewal fee
GBDL Gb: delete "european patent ceased" from journal

Free format text: 5181, PAGE 1736

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19890328

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19890331

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19890408

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19890411

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19890430

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19891021

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19891031

Ref country code: CH

Effective date: 19891031

Ref country code: BE

Effective date: 19891031

BERE Be: lapsed

Owner name: CRIPPA MARIO

Effective date: 19891031

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19900629

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19900703

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST