EP0108026B1 - Nivelliervorrichtung für Exzenterschaftmaschine - Google Patents

Nivelliervorrichtung für Exzenterschaftmaschine Download PDF

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Publication number
EP0108026B1
EP0108026B1 EP83420168A EP83420168A EP0108026B1 EP 0108026 B1 EP0108026 B1 EP 0108026B1 EP 83420168 A EP83420168 A EP 83420168A EP 83420168 A EP83420168 A EP 83420168A EP 0108026 B1 EP0108026 B1 EP 0108026B1
Authority
EP
European Patent Office
Prior art keywords
levers
pawls
frames
rocking
cams
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
EP83420168A
Other languages
English (en)
French (fr)
Other versions
EP0108026A1 (de
Inventor
Jean-Paul Froment
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.)
Staubli Faverges SCA
Original Assignee
Staubli Faverges SCA
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 Staubli Faverges SCA filed Critical Staubli Faverges SCA
Publication of EP0108026A1 publication Critical patent/EP0108026A1/de
Application granted granted Critical
Publication of EP0108026B1 publication Critical patent/EP0108026B1/de
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
    • D03C5/00—Cam or other direct-acting shedding mechanisms, i.e. operating heald frames without intervening power-supplying devices
    • D03C5/005—Leveling mechanisms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies
    • D03C1/14—Features common to dobbies of different types
    • D03C1/142—Leveling mechanisms

Definitions

  • the present invention relates to the armor mechanics for forming the crowd on the looms and it relates more particularly to the negative type cam mechanics, that is to say those in which the heald frames are moved. positively, against elastic return means which ensure their return to a rest position, by oscillating levers controlled using suitably profiled rotating cams.
  • the invention mainly intends to remedy, by ensuring that it is the mechanics itself which takes charge of the leveling effort.
  • the invention essentially consists in associating with each of the oscillating levers of the mechanics a load pawl capable, by tilting under the effect of an operating member common to all of the pawls, to come to bear against the edge of the corresponding lever and to cooperate with a retaining stop formed on the abovementioned edge when this lever reaches an angular end-of-travel position during the operation of the mechanism.
  • the armor mechanics partially shown in fig. 1 comprises a casing 1 inside which rotates a shaft 2 on which a series of cams or eccentrics are wedged 3 for the actuation of an equal number of oscillating levers 4.
  • These levers 4 are mounted side by side on an axis 5 oriented parallel to the shaft 2 and each of them carries at its lower end a roller 6; on the opposite end of each oscillating lever 4 is attached a cable 7 at the end of which is fixed one of the heddle frames 8 which elastic means, shown in the form of springs 9, tend to lower in the direction of the ground.
  • the leveling device comprises an axis 10 oriented parallel to the shaft 2 so as to form a pivot for a series of pawls 11, in equal number to that of the oscillating levers 4.
  • Each pawl 11 is connected by a spring 12 to a small arm 13 made angularly integral with a lower shaft 14 common to all of said arms 13.
  • This shaft 14 is angularly maneuvered using a control member 15 accessible from outside the casing 1, which member cooperates selectively with one or the other of two positioning notches 16 and 17. It will also be observed that the edge of each oscillating lever which is turned in the direction of the pawls 11 is profiled or cut to present a stop 4a.
  • control member 15 is in the orientation illustrated in FIG. 1 for which it is retained by the notch 16.
  • the pawls 11 are arranged in such a way that they cannot interfere with the oscillating levers 4.
  • All the frames are thus successively brought into the high position by the armor mechanics itself, without requiring from the operator any other effort than that resulting from the simple momentary deformation of the connecting springs 12 to move the pawls 11 from a position to the other.
  • the operation of the member 15 can also occur at any time during the normal operation of the mechanics.
  • the stops 4a are positioned on the levers 4 so that the engagement of the pawls 11 as described above occurs very slightly before said levers reach their full lift stroke. Under these conditions, the rotation of the shaft 2 and of the cams 3 still impart a very slight oscillation to the levers 4, thereby creating a clearance clearance between the pawls 11 and the stops 4a, a clearance which allows the removal of said pawls under the action of the above-mentioned cams as soon as the operator has returned the member 15 to the initial position of FIG. 1. The levers 4 are then released and the armor mechanics can resume normal operation.
  • the axis 10 which constitutes the common pivot of the set of pawls 11 is associated with a mechanism capable of ensuring its transverse movement over a very short distance d. Therefore the pawls 11 act in the manner of pushers with respect to the oscillating levers 11, so that the latter all tilt around the axis 5 and that the periphery of their roller 6 deviates from the periphery of the cams 3 from a distance of. It is understood that if this distance d is greater than the above clearance clearance, the set of levers 4 is at an absolutely identical angular position, so that the heald frames all affect the same height.
  • the mechanism intended to operate the transverse movement of the axis 10 is capable of incorporating a reduction system, as was assumed in FIG. 5 and 6 which illustrate two embodiments of such a mechanism.
  • the axis 10 is provided with two ends 10 very slightly offset from the central part which carries the pawls 11, so that the angular displacement imparted to said axis by means of an operating member such as 18 causes the transverse displacement d desired.
  • each of the ends, here referenced 10b, of the axis 10 is profiled to slide in fixed transverse guides 19 when the operator maneuvers in rotation screws or similar members 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Looms (AREA)

Claims (2)

1. Nivelliervorrichtung für Exzenterschaftmaschine, bei welcher die mit den Schäften (8) verbundenen Schwinghebel (4) mit Hilfe von ein geeignetes Profil aufweisenden, drehend angetriebenen Nocken (3) in einem der Wirkrichtung von den Schäften zugeordneten elastischen Pückstelleinrichtungen (4) entgegengesetztem Sinn betätigt werden, dadurch gekennzeichnet, daß sie eine in ihrer Anzahl derjenigen der Schwinghebel entsprechende Reihe von belasteten unabhängigen Klinken (11) aufweist, welche durch Verschwenken unter Einwirkung eines gemeinsamen Betätigungselements (15) in Anlage am Rand des zugeordneten Hebels (4) bringbar sind, so daß sie mit einem an dem genannten Rand ausgebildeten Halteanschlag (4a) zusammenwirken, wenn der Hebel im Betrieb der Maschine die Endstellung seiner Winkelbewegung erreicht.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die die Anordnung der Klinken (11) tragende gemeinsame Achse (10) in Querrichtung versetzbar ist, so daß die Klinken die Schwinghebel (4) zwangsläufig in eine äußerste Endstellung zurückstellen, in welcher die Hebel nicht mehr von den den größten Radius aufweisenden Bereichen der drehend angetriebenen Nocken (3) kontaktiert werden.
EP83420168A 1982-10-20 1983-10-19 Nivelliervorrichtung für Exzenterschaftmaschine Expired EP0108026B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8217843A FR2534936A1 (fr) 1982-10-20 1982-10-20 Dispositif de nivellement pour mecaniques d'armure a cames du type negatif
FR8217843 1982-10-20

Publications (2)

Publication Number Publication Date
EP0108026A1 EP0108026A1 (de) 1984-05-09
EP0108026B1 true EP0108026B1 (de) 1986-01-15

Family

ID=9278564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83420168A Expired EP0108026B1 (de) 1982-10-20 1983-10-19 Nivelliervorrichtung für Exzenterschaftmaschine

Country Status (5)

Country Link
US (1) US4534385A (de)
EP (1) EP0108026B1 (de)
JP (1) JPS5988945A (de)
DE (1) DE3361870D1 (de)
FR (1) FR2534936A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02114963A (ja) * 1988-10-25 1990-04-27 Terumo Corp 血小板保存容器
DE3933616C2 (de) * 1989-10-07 1998-07-02 Dornier Gmbh Lindauer Webmaschine für standstellenempfindliche Gewebe, insbesondere Köpergewebe
US5064903A (en) * 1990-08-08 1991-11-12 Exxon Research And Engineering Company Elastomeric toughened polyethylene blends
FR2669648B1 (fr) * 1990-11-27 1993-01-29 Staubli Verdol Ensemble de commande du mouvement des cadres d'un dispositif de formation de la foule telle qu'une mecanique d'armure.
JPH06306746A (ja) * 1993-04-17 1994-11-01 Nissan Tekushisu Kk レベリング装置を有するカム式開口装置を備えた織機の織段防止装置
US5653268A (en) * 1995-01-16 1997-08-05 Staubli Gmbh Modulator mechanism for a rotary dobby in a loom
JP7017336B2 (ja) * 2017-08-07 2022-02-08 津田駒工業株式会社 織機におけるレベリング装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB245308A (en) * 1925-02-26 1926-01-07 John Henry Place Improvements in or relating to dobbies for looms for weaving
FR51838E (fr) * 1941-10-28 1943-05-04 Dispositif de commande des cadres de lisses pour métiers à tisser
GB568193A (en) * 1942-06-29 1945-03-22 Hermann Staeubli An improved treadle motion for looms
CH255931A (de) * 1945-12-12 1948-07-31 Sulzer Ag Webmaschine.
FR1167691A (fr) * 1956-05-18 1958-11-27 Webstuhlbau Neugersdorf Veb Dispositif applicable aux mouvements de marches extérieures pour le nivellement des lames, notamment pour métiers à tisser
GB792458A (en) * 1956-06-02 1958-03-26 Webstuhlbau Neugersdorf Veb Means for levelling the healds in looms
CH634613A5 (de) * 1979-02-15 1983-02-15 Textilma Ag Webmaschine mit schaeften und diesen zugeordneten hebeln.

Also Published As

Publication number Publication date
DE3361870D1 (en) 1986-02-27
JPS5988945A (ja) 1984-05-23
EP0108026A1 (de) 1984-05-09
US4534385A (en) 1985-08-13
FR2534936B1 (de) 1985-03-15
FR2534936A1 (fr) 1984-04-27

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