US3532136A - Organs for grasping woof threads in inserting elements of stationary woof frames - Google Patents

Organs for grasping woof threads in inserting elements of stationary woof frames Download PDF

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Publication number
US3532136A
US3532136A US740934A US3532136DA US3532136A US 3532136 A US3532136 A US 3532136A US 740934 A US740934 A US 740934A US 3532136D A US3532136D A US 3532136DA US 3532136 A US3532136 A US 3532136A
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Prior art keywords
woof
lever
rod
stationary
base
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Expired - Lifetime
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US740934A
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English (en)
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Ramon Balaquer Golobart
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Individual
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    • 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
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/20—Constructional features of the thread-engaging device on the inserters
    • D03D47/23—Thread grippers
    • D03D47/233—Carrying grippers

Definitions

  • Elements for .inseningweft threads includeaiance, rod or flexible strip, which is reciprocatorilyrnovedthrough the sh ed of a loom to whose front end can be attaohed various types of mechanisms for gripping the weft thread, such as a hook, a loop or a clip. 7
  • inserting elements usually need foroperatingthejaws h t ma th e t r d p n pe oh omplic e mechanisms in the area of gripping the weft thread at the mouth of the inserting element or else, must use remotecontrols; all of these arerather b ulky andheavy, which ..eause difficulties in applying other elements that arevital fonmalring cloth, such as selvage makers, cutting elements, suction elements, etc., and lead to diff culties in catching .the weft h eads w th dan o .de'hes the w e e d heh said mouths or jaws" pass thro responding mechanisms.
  • the device which is the object of the present invention, is m d up of e sh ppi m hanism with h el hs te b s i e a bayonet which in the vicinity of its tip has attached a stop of ugh the shed .with their cor;
  • y ieldablc material whichmakes up a stationary jaw
  • m te i h set ler 9 th en h r said ele ates bas there s a lie e Pi w i h piv tally's ppsrt a woar e e the end of the front arm of the lever serving to make the movable jaw press the weft threads against the yieldable stop
  • the end of the back arm of said layer carrying a hinge joint for a rod, the free end of which is introduced so as to slide in a housing housed in a hinge joint ofa member that is fixed to the lengthened base, the rod-hinge joint unit being actuated by a recoil helicoidal spring that automatically causes the oscillation movement of the lever in both directions, for opening and closing of the mobile jaw.
  • Said bayonetlike elongated base is also covered with a protecting shield along its whole length, which prevents, as it passes through the shed, the elements of t s pi theehhhi from eve n t e a p h ehd and damaging them.
  • inscrter element whether it is rigid, as for example, a rod or lance, or flexible, for example, a strip or band.
  • FIG. 1 is a perspective view of the gripping mechanism in p h es t e ehteh h e t ea with. the P otes e fe the warp threads cut away along its entire length for greater visibility ofthc components.
  • FIG. 2 is per ee v f st ppihsme h hism of FIG. I, also in closed position with the protector for the warp threads cut away.
  • G- 3 s per pect e f he g pping, m c nism. e responding to FIG. 2 but with thef protcctor for the warp threads in place.
  • FIGS 4 and are details of the spring-rod unit in the open, and closed positions ofthe mobile jaw ,2
  • the gripping mechanism comprises a iengthened -bayonetlike shaped base, indicated ,bymimeralj'l providedlwith lengthwise wings Zand 3 bentrat right angles along one side and witha lengthwise wing 4, also.at ri ght an .gles, but on the opposite side, the latter being bent :again at rightangles, at a. slight distancerabove the base to overlie ,itin parallel relationship to constitute aiprotector -5,,for the 'warp threads, having ,c utouts ,6, FIG. 3, which besides eliminating weight, provide an outletfor dust orchaffwhichthe:repeated contactwiththeweft thread.7. can cause.
  • the base and thewingdqboth terminateatthe forwardend in,a p oint 8 and adjacent;this.end,there1is attached-to the base ,a stop .9, made of a relatively yieldable material; positioned against the wing 4 to constitute thestationary jaw of the gripping mechanism.
  • Alever 11 1, having opposing arms lZand l 3 is supportcd at a medialpoint for pivotal movementon a pin -l0 at tached ;to,the base at a distance from its'forwardrend 8.
  • Thetotheranm 13 of the lever terminates in a horizontal flat surface l-l6;having a margin on the outwardly facing side which rtapers inwardly (for a purpose which will be explained later) and Qanendmar gin which is provided with ,an inwardly curved recess 17 to serve as a bearing for the ball shaped end portion IS-of a rod 19.
  • Rod 19 is surrounded by ,a recoil helicoidal spring 24, the ends of which bear respectively against the end portion 18,02 the rod and the housing 21 and, since the spring is under compression, tends to urge the housing 2I away from the end portion 18 at all times.
  • the rod 19 and the cooperating spring 24 act as a snap-action device which not only holds lever 11 in each of its two extreme positions, as exemplified respectively in FIGS, 1 and 2, but causes the lever to move almost instantaneously from one of these two positions to the other without noticeable delay.
  • the end 27 of the base 1 is provided with openings 30 to receive fastening members, such as screws 29, for attaching the gripping mechanism to a reciprocating arm 28 of a loom.
  • the gripping mechanism controlled by arm 28, FIG. 6, is introduced into shed 36 to engage the end of the weft thread 7 coming from a bobbin 37, with movable jaw 1,4 separated from stationary jaw 9, or in the open position, until it reaches the feed side of the loom, where the outer curved part of the movable jaw 14 hits stop 31, u ed n loom fra e of housing Zl against the force of spring 24 until a medial point is reached between the extreme positions of the lever, at
  • a weft gripping means for a weft inserting element of a loom, the combination comprising an elongated base, one end of the base being provided with a bayonet-shaped tip, a stationary jaw on said base adjacent said one end, a doubleended lever pivotally mounted at a medial point on said base, one end of said lever having an arm provided with a movable 5 jaw coacting with said stationary jaw for gripping a weft thread therebetween when in gripping position, and spring means connected between said lever and said base for urging said lever selectively in either direction to hold said movable jaw in gripping or nongripping position.
  • said spring means includes a rod and a recoil helicoidal spring surrounding said rod, one end of said spring being connected with said double-ended lever, the other end of the spring being connected with said base.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US740934A 1967-07-13 1968-06-28 Organs for grasping woof threads in inserting elements of stationary woof frames Expired - Lifetime US3532136A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES343664A ES343664A1 (es) 1967-07-13 1967-07-13 Perfeccionamientos en los organos aprehensores de hilos de trama en los elementos insertadores.

Publications (1)

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US3532136A true US3532136A (en) 1970-10-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
US740934A Expired - Lifetime US3532136A (en) 1967-07-13 1968-06-28 Organs for grasping woof threads in inserting elements of stationary woof frames

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US (1) US3532136A (enrdf_load_stackoverflow)
DE (1) DE1760558A1 (enrdf_load_stackoverflow)
ES (1) ES343664A1 (enrdf_load_stackoverflow)
FR (1) FR1571925A (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662785A (en) * 1969-11-11 1972-05-16 Dornier Gmbh Lindauer Gripper head for use in a shuttleless loom
US3857419A (en) * 1972-08-31 1974-12-31 Mackie & Sons Ltd J Weft gripper for shuttleless looms
US3978897A (en) * 1975-06-06 1976-09-07 Rockwell International Corporation Weft extending carrier
US3986532A (en) * 1975-09-23 1976-10-19 Rockwell International Corporation Weft extending carrier
US4040454A (en) * 1974-09-23 1977-08-09 Albatex A.G. Drawing gripper for gripping and transporting weft yarns in continuous weft feed looms
US4648429A (en) * 1984-06-07 1987-03-10 Vamatex S.P.A. Weft carrying grippers for shuttleless weaving looms
US5065797A (en) * 1989-07-15 1991-11-19 Lindauer Dornier Gesellschaft M.B.H. Gripper head for shuttleless looms
US5113914A (en) * 1990-01-26 1992-05-19 Nuovopignone-Industrie Meccaniche E Fonderia S.P.A. Leaf spring type weft gripping device in a shuttleless loom
US20030183297A1 (en) * 2002-02-25 2003-10-02 Gividi-Italia Spa Thread clamp for a carrier thread gripper in a rapier loom
US20040173278A1 (en) * 2001-03-21 2004-09-09 Denis Moeneclaey Rapier for a rapier loom
US20080105326A1 (en) * 2006-11-02 2008-05-08 Sultex Ag Method and apparatus for the insertion of a weft thread

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE798958A (fr) * 1972-08-14 1973-08-16 Dornier Gmbh Lindauer Dispositif d'introduction de fil de trame pour metiers a tisser sans navette
DE8801404U1 (de) * 1988-02-05 1988-08-18 Maaßen, Egon, 2000 Hamburg Kinematisch visuelle Unterhaltungsvorrichtung
EP0864679B1 (de) * 1997-03-14 2002-12-18 Sulzer Textil AG Greiferklemme für einen Bringergreifer und Webmaschine mit Greiferklemme
DE29908675U1 (de) * 1999-05-17 1999-08-12 Textilma Ag, Hergiswil Greifer und Vorrichtung zum Eintragen eines Schußfadens
DE10252053A1 (de) * 2002-11-08 2004-06-09 Lindauer Dornier Gmbh Verfahren zum Steuern von Komponenten eines Arbeitsmittels in Webmaschinen und Webmaschine zur Verfahrensdurchführung
DE10247375A1 (de) * 2002-10-10 2004-05-06 Lindauer Dornier Gmbh Verfahren zur gesteuerten Öffnungsbewegung der Fadenklemme eines Schussfadengreifers in Webmaschinen und Schussfadengreifer

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662785A (en) * 1969-11-11 1972-05-16 Dornier Gmbh Lindauer Gripper head for use in a shuttleless loom
US3857419A (en) * 1972-08-31 1974-12-31 Mackie & Sons Ltd J Weft gripper for shuttleless looms
US4040454A (en) * 1974-09-23 1977-08-09 Albatex A.G. Drawing gripper for gripping and transporting weft yarns in continuous weft feed looms
US3978897A (en) * 1975-06-06 1976-09-07 Rockwell International Corporation Weft extending carrier
US3986532A (en) * 1975-09-23 1976-10-19 Rockwell International Corporation Weft extending carrier
US4648429A (en) * 1984-06-07 1987-03-10 Vamatex S.P.A. Weft carrying grippers for shuttleless weaving looms
US5065797A (en) * 1989-07-15 1991-11-19 Lindauer Dornier Gesellschaft M.B.H. Gripper head for shuttleless looms
US5113914A (en) * 1990-01-26 1992-05-19 Nuovopignone-Industrie Meccaniche E Fonderia S.P.A. Leaf spring type weft gripping device in a shuttleless loom
US20040173278A1 (en) * 2001-03-21 2004-09-09 Denis Moeneclaey Rapier for a rapier loom
US6866069B2 (en) * 2001-03-21 2005-03-15 Picanol N.V. Rapier for a rapier loom
US20030183297A1 (en) * 2002-02-25 2003-10-02 Gividi-Italia Spa Thread clamp for a carrier thread gripper in a rapier loom
US6845792B2 (en) * 2002-02-25 2005-01-25 Gividi-Italia Spa Thread clamp for a carrier thread gripper in a rapier loom
US20080105326A1 (en) * 2006-11-02 2008-05-08 Sultex Ag Method and apparatus for the insertion of a weft thread
US7584769B2 (en) * 2006-11-02 2009-09-08 Sultex Ag Method and apparatus for the insertion of a weft thread

Also Published As

Publication number Publication date
DE1760558A1 (de) 1971-12-02
FR1571925A (enrdf_load_stackoverflow) 1969-06-20
ES343664A1 (es) 1968-09-01

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