US3371688A - Double weft thread picking means for shuttleless looms - Google Patents

Double weft thread picking means for shuttleless looms Download PDF

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Publication number
US3371688A
US3371688A US549293A US54929366A US3371688A US 3371688 A US3371688 A US 3371688A US 549293 A US549293 A US 549293A US 54929366 A US54929366 A US 54929366A US 3371688 A US3371688 A US 3371688A
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United States
Prior art keywords
carrier rods
guide body
weft thread
plates
double weft
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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 - Lifetime
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US549293A
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English (en)
Inventor
Liebchen Waldemar
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GUSKEN JEAN
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Individual
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Publication date
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Publication of US3371688A publication Critical patent/US3371688A/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D39/00—Pile-fabric looms
    • D03D39/16—Double-plush looms, i.e. for weaving two pile fabrics face-to-face
    • 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

Definitions

  • a shuttleless loom has, for the purpose .of introducing threads simultaneously from the same side of the shed, carrier rods guided in pairs of rollers; the inner ends of the carrier rods are pivoted to a carrier body which is guided for sliding movement in a direction parallel to the length of the rods and is moved through a pivoted link by a swinging lever.
  • the invention relates to a shuttleless loom for pile fabrics with double weft thread picking using thread carriers which are introduced in pairs into the double shed from at least one side of the fabric being woven.
  • the primary object of the invention is to provide a shuttleless loom which overcomes these disadvantages, in which the two carriers are accurately guided in exactly similar paths in their movement into the sheds and in which, as a consequence, the operation of the machine is as efiicient as possible, and the path of movement of the rods is reduced to a minimum.
  • this purpose is accomplished by mounting the carriers on the ends of two carrier rods arranged parallel to each other, which at points close to the web are reciprocably guided between pairs of rollers, while their ends remote from the web are pivotally connected to a guide body reciprocally movable in guide tracks or grooves parallel to the carrier rods, the guide body being movable by a conventional oscillating lever through a link connection.
  • FIG. 1 shows in side elevation a mechanism according to the invention with the nearer guide member cut away
  • FIG. 2 is an enlargement of a part of FIG. 1;
  • FIG. 3 is a top plan view of a part of FIG. 1, with parts in section;
  • FIG. 4 is a cross-section on the line 4-4 of FIG. 2.
  • FIG. 1 shows a lever 12 swingable about an axis 10 perpendicular to the slay, which in a conventional way is reciprocated in synchronism with the slay from side to side of a generally vertical mid-position.
  • a link 16 is connected to the lever 12 by a pin 14, and the link is further connected at 26, to a guide body 20, the lever 12 thus transmitting motion to the guide body.
  • the guide body 20 is formed by two plates 22 and 24 arranged parallel to each other and provided with aligned holes, the plates being held spaced apart by bolts 26, 28,
  • the bolts having reduced end portions.
  • the bolts are fastened in the plates by set crews threaded in the bores 34, and provided with rounded ends which engage in grooves or depressions in the reduced end portions of the bolts.
  • the plates 22, 24 carry on their outer faces splines 36, 38, which are slidable in grooves 40, 42 in guide members 44, 46 positioned on both sides of the plates.
  • the guide members 44, 46 extend in a direction transverse to the fabric being woven, approximately in the mid-point between the two sheds, and are fastened on the slay or the machine frame.
  • the bolt 26 carries a needle bearing 48, by means of which the link 16 is swingably held between the plates 22, 24.
  • the bolts 28, 30 similarly carry needle bearings 50, 52 by means of which the inner ends of two carrier rods 54, 56 with end portions provided with eyes are pivoted on the guide body 20.
  • rollers 62, 64 and 66, 68 At a point directly in front of the entrance into the shed are two pairs of rollers 62, 64 and 66, 68 between which the outer ends of the carrier rods are guided.
  • the rollers being freely journalled on the slay or the machine frame, whichever carries the guide members 44, 46.
  • the guide roller axes are perpendicular to the direction of the grooves 40, 42, so that the carrier rods during swinging of the lever 12 remain absolutely parallel to each other in all positions. This assures that carrier rods move parallel to each other into the web and the transfer of the weft threads is accomplished without difiiculty.
  • the friction in the arrangement of the invention is quite low, because sliding friction is present only between the splines and the groove surfaces of the guide and the rolling friction between the carrier rods and the rolls is so small that it can be disregarded.
  • the increase in power required for moving the carrier rods as compared with the power required in a conventional machine having only a single carrier rod on each side of the web is consequently determined practically only by the increase in mass of the two carrier rods and the guide body; in which connection it should be borne in mind that the use of two links is avoided.
  • the guide members in which the guide body is mounted is located between first and second horizontal planes which contain the axes of the pivots of the carrier rods and the longitudinal axes of the carrier rods, and are symmetrical with respect to a third plane equidistant from the first and second planes.
  • An arrangement for use in a shuttleless loom for weaving pile fabric, for introducing simultaneously two weft threads from the same side into a shed comprising two parallel thread carrier rods, two pairs of rollers 3 mounted to rotate freely about parallel axes substantially perpendicular to the longitudinal axes of the carrier rods, one of the carrier rods fitting between the rollers of each of the pairs, a guide body, means pivoting the inner ends of the carrier rods to the guide body, means mounting the guide body for sliding movement in a direction parallel to the longitudinal axes of the carrier rods, a lever mounted to swing about an axis, and a link pivoted to the lever and to the guide body.
  • said guide body mounting means comprising guide members located between first and second planes containing the axes of said pivoting means and the longitudinal axes of the rods.
  • said link being pivoted to said guide body about an axis lying in a third plane parallel to and intermediate between said first and second planes.
  • said third plane being equidistant from the first and second planes, and said guide members being symmetrical with respect to said third plane.
  • said guide body mounting means comprising guide members on each side of the guide body having grooves therein extending parallel to the longitudinal axes of the carrier rods, said guide body having splines slidably engaged in said grooves.
  • said guide body comprising spaced parallel plates, said splines being mounted on the outer faces of the plates, bolts extending between the plates, said carrier rods and said link having portions located between the plates pivoted on said bolts.
  • said guide body comprising spaced parallel plates, bolts extending between the plates, said carrier rods and said link having portions located between the plates pivoted on said bolts.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US549293A 1965-05-11 1966-05-11 Double weft thread picking means for shuttleless looms Expired - Lifetime US3371688A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG0043562 1965-05-11

Publications (1)

Publication Number Publication Date
US3371688A true US3371688A (en) 1968-03-05

Family

ID=7127217

Family Applications (1)

Application Number Title Priority Date Filing Date
US549293A Expired - Lifetime US3371688A (en) 1965-05-11 1966-05-11 Double weft thread picking means for shuttleless looms

Country Status (5)

Country Link
US (1) US3371688A (enrdf_load_stackoverflow)
BE (1) BE680841A (enrdf_load_stackoverflow)
CH (1) CH447068A (enrdf_load_stackoverflow)
ES (1) ES326603A1 (enrdf_load_stackoverflow)
GB (1) GB1079329A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100941A (en) * 1975-05-06 1978-07-18 Northrop Weaving Machinery Limited Rapier looms
US5683375A (en) * 1990-10-29 1997-11-04 The Procter & Gamble Company Extensible absorbent articles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107956025B (zh) * 2018-01-09 2023-03-31 苏州硕海机电科技有限公司 一种带有轨道的有梭引纬装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1943662A (en) * 1932-01-02 1934-01-16 Sanford Mills Needle loom
FR797163A (fr) * 1935-01-18 1936-04-22 Procédé de tissage de tapis brosse en fibre de coco ou autre et produit en résultant
US2818882A (en) * 1954-09-02 1958-01-07 Duerkoppwerke Shuttleless loom
US3266528A (en) * 1963-10-05 1966-08-16 Jean Gusken Maschinenfabrik Ei Feeder rod drive for shuttleless web loom

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1943662A (en) * 1932-01-02 1934-01-16 Sanford Mills Needle loom
FR797163A (fr) * 1935-01-18 1936-04-22 Procédé de tissage de tapis brosse en fibre de coco ou autre et produit en résultant
US2818882A (en) * 1954-09-02 1958-01-07 Duerkoppwerke Shuttleless loom
US3266528A (en) * 1963-10-05 1966-08-16 Jean Gusken Maschinenfabrik Ei Feeder rod drive for shuttleless web loom

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100941A (en) * 1975-05-06 1978-07-18 Northrop Weaving Machinery Limited Rapier looms
US5683375A (en) * 1990-10-29 1997-11-04 The Procter & Gamble Company Extensible absorbent articles

Also Published As

Publication number Publication date
CH447068A (de) 1967-11-15
ES326603A1 (es) 1967-03-01
BE680841A (enrdf_load_stackoverflow) 1966-10-17
GB1079329A (en) 1967-08-16

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