EP0099842B1 - Perfectionnements aux dispositifs de marche arrière pour mécaniques d'armure - Google Patents

Perfectionnements aux dispositifs de marche arrière pour mécaniques d'armure Download PDF

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Publication number
EP0099842B1
EP0099842B1 EP83420118A EP83420118A EP0099842B1 EP 0099842 B1 EP0099842 B1 EP 0099842B1 EP 83420118 A EP83420118 A EP 83420118A EP 83420118 A EP83420118 A EP 83420118A EP 0099842 B1 EP0099842 B1 EP 0099842B1
Authority
EP
European Patent Office
Prior art keywords
lever
locking lever
rotation
stop
axis
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
EP83420118A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0099842A1 (fr
Inventor
U. Mutschler
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.)
Staeubli Verdol SA
Original Assignee
Staeubli Verdol SA
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 Staeubli Verdol SA filed Critical Staeubli Verdol SA
Publication of EP0099842A1 publication Critical patent/EP0099842A1/fr
Application granted granted Critical
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/008—Cooling systems
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types
    • D03C3/28—Pick-finding arrangements; Arrangements for preventing next shed from being opened during stopping of loom

Definitions

  • means are generally provided for reversing the respective positions of the selection of the hooks and of the lifting of the claws. in the mechanical operating cycle, that is to say in practice to phase the movement of the selection needles relative to the vertical back and forth of the claws.
  • These means are often controlled by hand, which involves the operator's work and can give rise to incidents if he forgets to maneuver the control members before and after reversing the loom.
  • the present invention aims to improve this known device so as to retain the advantages of great simplicity and the absence of accessory mechanisms, while completely eliminating any braking and consequently any accessory component complicated with power losses and overheating. that it provokes.
  • the two bodies in question are produced in the form of plates or discs, the facing faces of which are provided with lateral teeth suitable for ensuring their angular connection while providing the necessary phase shift angle during the reverse gear.
  • the driven disc carries a locking lever which is articulated thereto around a longitudinal axis suitably offset relative to the general axis of the device. The ends of this lever are shaped, for example by means of notches, so as to be able to come to engage on the adjacent tooth of the driving member in order to lock it in place to one or the other of its two stop positions relative to the driven shaft.
  • This lever carries at its ends return pawls, protruding towards the outside and suitable for cooperating with a fixed stop, that of these pawls which is located forward in the direction of movement being erased in the direction of the axis relative to the stop, while the other can freely erase itself by rotation around its axis when passing in front of this stop as long as one turns in the same direction, but on the contrary is blocked against an individual stop carried by the lever as soon as the direction of rotation is reversed, forcing the corresponding end of this lever to approach the center and thereby causing the tilting of said lever which then locks the adjacent tooth of the member leading to its new position (out of phase with the previous one).
  • a suitable system of elastic snap keeps the lever in its end positions and brings it back when it moves away from it.
  • the lever itself is shaped so that if it has completely tilted before the corresponding tooth has completely covered the phase shift angle, it can push it back slightly so that it can move to its end position at which it comes back to block it.
  • the entire device being symmetrical, it functions in the same way when returning to the front gear as when switching from it to the reverse gear.
  • the coupling device prohibits any significant relative angular displacement of the two driving and driven members and thus completely eliminates any brake system or the like.
  • the coupling shown in fig. 1 comprises a driving element and a driven element respectively designated by the general references 1 and 2. These two elements are in the form of discs of reduced thickness arranged at a slight spacing from each other along the same axis, as well as as shown in fig. 2 (they have been shown spaced apart from one another in FIG. 1 to allow the detail of their opposite faces to be seen).
  • the first 1 is constituted by a flat toothed pinion 3 mounted idly on the common shaft 4 and driven by another pinion 5 suitably connected to the motor shaft of the loom, the inner face of this pinion 3, that is to say say that facing the disc 2, being integral with a projecting co-axial portion 6 in the form of a plate of smaller diameter than the aforementioned pinion and which carries two lateral teeth 7a and 7b diametrically opposite one another, oriented towards the second disc 2.
  • the latter is keyed onto the shaft 4, as indicated by the key 8.
  • teeth 9a and 9b On its inner face (that facing the first disc 1) are provided two lateral teeth 9a and 9b, which are also diametrically opposite l 'to each other and adapted to cooperate with the teeth 7a and 7b above to ensure the angular connection between the two discs 1 and 2.
  • the four teeth 7a, 7b, 9a, 9b each occupying significantly less than 45 °, we understand that this link has a fairly large angle of play or dead travel (from the 135 ° in the example shown).
  • the second plate 2 also carries on its inner face an axis 10 located a short distance from its periphery and on which is articulated by its middle a double lever 11 curved in the shape of an arc of a circle. Each end of the inner edge of this lever (the edge facing the shaft 4) is notched so as to determine a notch 12a, 12b with a square profile.
  • the lever 11 is dimensioned so that when the teeth 7a, 7b are in contact with the teeth 9a, 9b for driving the disc 2 in one direction (dextrorsum direction along arrow 13 in Fig.
  • the notch 12a which is at the upstream end of the lever can come to engage on that of the end angles of the periphery of the neighboring tooth 7a which does not is not in contact with the corresponding tooth 9a, as shown in fig. 3, thus trapping this tooth 7a between the tooth 9a and the lever 11, that is to say by positively locking the disc 2 relative to the disc 1.
  • the lever 11 has two locking positions, one for rotation in one direction (dextrorsum direction in fig. 3), the other for rotation in opposite direction (sinistrorsum direction of arrow 14 in fig. 10).
  • a ball and spring interlocking system is provided such as that indicated in fig. 4.
  • a bore 15 closed externally by a screw cap 16 on which bears a spring 17 suitable for
  • depressions 19 and 20 in each of which the ball can snap into place. These depressions are joined to each other by a part 21 in the form of a double inclined plane so that as soon as the ball has exceeded the top of this double plane it tends to bring the lever to its closest end of travel, without keeping it in an intermediate position.
  • the depressions 19, 20 are in the form of hemispheres so as to prevent the ball 18, and consequently the lever 11, from exceeding the intended useful stroke.
  • Each end of the lever 11 carries an axis 22a, 22Lb on which is articulated a pawl 23a, 23b which a spring 24a, 24b tends to bring against an individual stop 25a, 25b to a rest position for which the point of the pawl is oriented towards the outside with respect to the shaft 4.
  • the arrangement of the springs 24a, 24b is such that at this resting position of the pawls they urge them to rotate in a direction bringing their points one of the other (ie in fig. 3 sinistrorsum for the ratchet 23a and dextrorsum for the other 23b).
  • the pawls 23a, 23b are further dimensioned so that when the lever 11 is in one of its locking positions, that of them which is at the end of the lever where the notch 12a or 12b is engaged with the tooth 8a or 8b is completely erased relative to the periphery of the disc 2 (pawl 23a in fig. 3), while the tip of the other protrudes significantly beyond it.
  • a stud 26 oriented parallel to the shaft 4 and located in the immediate vicinity of the periphery of the disc 2 is provided on the fixed mechanical frame.
  • the disc 1 will therefore drive the disc 2, the shaft 4 and the mechanics backwards, but with the predetermined phase shift (FIG. 10) compared to the case of forward gear.
  • the rotation will not be hindered by the pawls, the first 23a now being in the retracted position towards the axis with respect to the stud 26 and the second freely tilting in passing, as shown in FIG. 11.
  • the discs 1 and 2 could be mounted on two shafts arranged end to end, or one on a central shaft, the other on a hollow shaft surrounding it.
  • any kind of member capable of having lateral teeth and a transverse face which could carry the rocking lever 11 could be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Mechanical Operated Clutches (AREA)
EP83420118A 1982-07-19 1983-07-18 Perfectionnements aux dispositifs de marche arrière pour mécaniques d'armure Expired EP0099842B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8212849A FR2530271B1 (enrdf_load_stackoverflow) 1982-07-19 1982-07-19
FR8212849 1982-07-19

Publications (2)

Publication Number Publication Date
EP0099842A1 EP0099842A1 (fr) 1984-02-01
EP0099842B1 true EP0099842B1 (fr) 1986-09-24

Family

ID=9276229

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83420118A Expired EP0099842B1 (fr) 1982-07-19 1983-07-18 Perfectionnements aux dispositifs de marche arrière pour mécaniques d'armure

Country Status (5)

Country Link
US (1) US4523915A (enrdf_load_stackoverflow)
EP (1) EP0099842B1 (enrdf_load_stackoverflow)
JP (1) JPS5926558A (enrdf_load_stackoverflow)
DE (1) DE3366456D1 (enrdf_load_stackoverflow)
FR (1) FR2530271B1 (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0207430B1 (en) * 1985-07-01 1992-02-26 EASTHORPE INVESTMENTS Ltd. Centrifugal pump
FR2620464B1 (fr) * 1987-09-16 1990-01-05 Staubli Verdol Dispositif d'entrainement de l'arbre d'un metier a tisser a partir de la commande de sa mecanique d'armure
US20060105844A1 (en) * 2004-11-17 2006-05-18 Sweet Roger L Flexible drive adapter
CN102341535B (zh) * 2009-03-06 2013-12-25 林道尔.多尼尔有限责任公司 用于操作带有开口机的织机的方法
WO2014068633A1 (ja) * 2012-10-29 2014-05-08 トヨタ自動車株式会社 クラッチ装置、車両用操舵装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1641230A (en) * 1926-05-05 1927-09-06 Int Motor Co Vibration dampener
US1898806A (en) * 1929-12-19 1933-02-21 Black & Decker Mfg Co Centrifugal flexible coupling
US1862864A (en) * 1930-02-19 1932-06-14 Black & Decker Mfg Co Centrifugal flexible coupling
US1999364A (en) * 1932-11-17 1935-04-30 Maybach Motorenbau Gmbh Speed controlled shaft coupling
FR790707A (fr) * 1934-08-25 1935-11-26 Lyonnaise Des Machines Textile Perfectionnement aux mécaniques d'armures et mécaniques jacquard
FR822076A (fr) * 1936-07-11 1937-12-20 Ruti Vormals Caspar Honegger M Commande du prisme d'un métier jacquard avec accouplement, pour atteindre le momentde travail nécessaire au moment de l'inversion, du sens de rotation
US2653458A (en) * 1947-12-26 1953-09-29 Andrews Albert Centrifugal control mechanism
US2658362A (en) * 1949-09-21 1953-11-10 Bendix Aviat Corp Coupling
FR2246668B2 (enrdf_load_stackoverflow) * 1973-10-05 1976-05-07 Verdol Sa
JPS5536358A (en) * 1978-09-06 1980-03-13 Murata Machinery Ltd Apparatus for automatically exchanging cylinder shaft rotation to left and right direction of dobby machine

Also Published As

Publication number Publication date
FR2530271A1 (enrdf_load_stackoverflow) 1984-01-20
EP0099842A1 (fr) 1984-02-01
DE3366456D1 (en) 1986-10-30
FR2530271B1 (enrdf_load_stackoverflow) 1985-02-01
JPS5926558A (ja) 1984-02-10
US4523915A (en) 1985-06-18

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