EP0085108B1 - Procede d'entrainement d'un cadre de lame pour une machine a ratiere negative, metier a excentrique negatif - Google Patents

Procede d'entrainement d'un cadre de lame pour une machine a ratiere negative, metier a excentrique negatif Download PDF

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Publication number
EP0085108B1
EP0085108B1 EP82900146A EP82900146A EP0085108B1 EP 0085108 B1 EP0085108 B1 EP 0085108B1 EP 82900146 A EP82900146 A EP 82900146A EP 82900146 A EP82900146 A EP 82900146A EP 0085108 B1 EP0085108 B1 EP 0085108B1
Authority
EP
European Patent Office
Prior art keywords
heald frame
negative
machine
levers
frame
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
EP82900146A
Other languages
German (de)
English (en)
Other versions
EP0085108A4 (fr
EP0085108A1 (fr
Inventor
Hiroyuki Mizuguchi
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.)
Yamada Dobby Co Ltd
Original Assignee
Yamada Dobby Co Ltd
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 Yamada Dobby Co Ltd filed Critical Yamada Dobby Co Ltd
Publication of EP0085108A1 publication Critical patent/EP0085108A1/fr
Publication of EP0085108A4 publication Critical patent/EP0085108A4/fr
Application granted granted Critical
Publication of EP0085108B1 publication Critical patent/EP0085108B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C13/00—Shedding mechanisms not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies

Definitions

  • This invention relates to a heald frame driving apparatus in a loom according to the first portion of the claim.
  • heald frame driving is performed by raising the heald frame via the rope and depressing it by means of a spring restoring force.
  • this driving method for example, when spun yarn fabric is woven in refined clothing fashion, if tension of downward warp is larger than that of upward warp, the spring tension must be increased. Since the heald frame is raised against the above mentioned spring tension, large strength acts on the rope and on the negative dobby machine body or the negative cam machine body, thereby abrasion is accelerated in such part and power is lost.
  • the spring and members relating to this are disposed below the heald frame, treatment is inconvenient and workability is not favorable.
  • An apparatus according to the first portion of the claim is known from GB-A-1125968.
  • the transmission members, working levers, connecting rods and springs are arranged below the heald frame.
  • Negative dobbies disposed above the heald frame are disclosed in FR-A-2477186.
  • An object of this invention is to provide a heald frame driving apparatus wherein the spring tension acting on a heald frame is small when tension of downward warp is larger than that of upward warp, and abrasion is small of a resilient transmission member and a working member such as negative dobby machine body or cam machine body.
  • Another object of this invention is to provide heald frame driving apparatus, wherein the working lever, connecting rod and spring to engage the resilient transmission member with the heald frame are arranged at lateral side or upper side of the heald frame, and treatment and adjustment are easy.
  • Still another object of this invention is to provide heald frame driving apparatus wherein power loss is small.
  • Fig. 1 is a schematic front view of an embodiment of this invention.
  • Fig. 1 shows an embodiment according to this invention.
  • a negative dobby machine body 2 is mounted on the right end of an upper surface of a top beam 1 of a loom, and a plurality of heald frames 11, which correspond to a plurality of shedding levers (not shown) of the negative dobby machine body 2 and have the same number as that of the shedding levers, are arranged in longitudinal direction.
  • One shedding lever is connected to two ropes 3a, 3b for one heald frame 11 corresponding thereto.
  • the top beam 1 of the loom is provided with pins projecting on leftward and rightward portions from the center of the beam, and a plurality of guide pulleys 15a, 15b corresponding to the heald frames 11 are rotatably supported by respective pins.
  • Shafts 10 project respectively on both side frames 9a, 9b of the loom at a sideward portion of the heald frames 11, and a plurality of working levers 4a and 4b are pivotally supported respectively by the shafts 10 corresponding to each heald frame 11.
  • the working levers 4a and 4b are formed in lateral symmetry and provided with sector portons 5a, 5b on the upper side, connecting portions 6a, 6b on the inner side, and arms 7a, 7b on the outer side, the rope 3a guided by the guide pulley 15a is connected to the sector portion 5a; the rope 3b guided by the guide pulley 15b is connected to the sector portion 5b.
  • Connecting rods 8, 8 are joined with pins respectively to the connecting portions 6a, 6b, and each of the connecting rods 8, 8- stands upright and the bottom end thereof is pivotally connected to the heald frame 11.
  • Hooks 12,12 are joined with pins respectively to outer ends of the arms 7a, 7b, and brackets 14a, 14b are installed below the arms 7a, 7b in opposing relation thereto.
  • the brackets 14a, 14b are attached to the side frames 9a, 9b, and two tension coil springs 13 are stretched between the hooks 12, 12 and the brackets 14a, 14b respectively.
  • tension coil spring 13 in the above mentioned embodiment may be replaced by another tension coil spring connecting the heald frame 11 with the top beam 1.

Landscapes

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

Claims (1)

  1. Un dispositif d'entraînement de lame dans un métier à tisser comportant à machine à ratière négative ou à excentriques négatifs et des organes de transmission flexibles qui sont reliés à un levier de formation de foule de la machine à ratière négative ou de la machine à excentriques négatifs se trouvant au-dessus de la lame qui est ainsi entraînée, ce dispositif d'entraînement comprenant;
    une paire de leviers de manoeuvre (4a, 4b) supportés de façon pivotante sur des montants (9a, 9b) du métier, ces leviers de manoeuvre (4a, 4b) comportant des moyens pour leur fixer respectivement les organes de transmission-flexibles (3a, 3b),
    une biellette (8) supportée de façon pivotante à une extrémité de chacun des leviers de manoeuvre (4a, 4b) et accouplée à la lame (11), et
    des moyens à ressorts (13) montés entre l'autre extrémité de chacune des leviers de manoeuvre et les montants,
    ce dispositif d'entraînement étant conçu de façon que la lame (11) descende lorsque les organes de transmission (3a, 3b) sont tirés par les leviers de formation de foule, tandis que la lame monte sous l'effet de la force de rappel des moyens à ressorts (13) lorsque le levier de formation de foule est rappelé à sa position initiale,
    caractérisé en ce que
    les leviers de la paire de leviers de manoeuvre (4a, 4b) sont supportés de façon pivotante sur les parties supérieures des montants latéraux (9a, 9b) du métier, et
    ces leviers de manoeuvre présentent sur leur côté supérieur une surface courbe (5a, 5b) à laquelle sont fixés les organes de transmission flexibles (3a, 3b).
EP82900146A 1980-12-27 1981-12-26 Procede d'entrainement d'un cadre de lame pour une machine a ratiere negative, metier a excentrique negatif Expired EP0085108B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP185222/80 1980-12-27
JP55185222A JPS6030767B2 (ja) 1980-12-27 1980-12-27 消極ドビ−機・消極カム機における綜絖枠駆動装置

Publications (3)

Publication Number Publication Date
EP0085108A1 EP0085108A1 (fr) 1983-08-10
EP0085108A4 EP0085108A4 (fr) 1985-09-02
EP0085108B1 true EP0085108B1 (fr) 1989-03-15

Family

ID=16167008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82900146A Expired EP0085108B1 (fr) 1980-12-27 1981-12-26 Procede d'entrainement d'un cadre de lame pour une machine a ratiere negative, metier a excentrique negatif

Country Status (4)

Country Link
EP (1) EP0085108B1 (fr)
JP (1) JPS6030767B2 (fr)
DE (1) DE3177009D1 (fr)
WO (1) WO1982002217A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59163441A (ja) * 1983-02-28 1984-09-14 村田機械株式会社 ヘルドフレ−ムの昇降装置
JPS60246840A (ja) * 1984-05-17 1985-12-06 村田機械株式会社 織機のタテ糸開口装置
JPS6430374U (fr) * 1988-07-22 1989-02-23
JP5593833B2 (ja) * 2010-05-24 2014-09-24 株式会社豊田自動織機 電子開口装置
CN104005141B (zh) * 2014-06-13 2015-07-22 丹阳市锦典丝绸工艺品织造有限公司 一种多臂喷水织机的上层综框起综装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH509438A (de) * 1969-06-13 1971-06-30 Staeubli Ag Anhängevorrichtung für einen Webmaschinenschaft
JPS5250311A (en) * 1975-10-21 1977-04-22 Nippon Musical Instruments Mfg Manufacture of carbon or carbide plates
FR2423569A1 (fr) * 1978-04-18 1979-11-16 Staubli Sa Ets Perfectionnements aux mecanismes a cables pour la commande des cadres de lisses des metiers a tisser
EP0066655A1 (fr) * 1981-06-01 1982-12-15 N.V. Weefautomaten Picanol Dispositif de commande des lames dans les métiers à tisser

Also Published As

Publication number Publication date
WO1982002217A1 (fr) 1982-07-08
JPS57112430A (en) 1982-07-13
EP0085108A4 (fr) 1985-09-02
DE3177009D1 (en) 1989-04-20
JPS6030767B2 (ja) 1985-07-18
EP0085108A1 (fr) 1983-08-10

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