Classifications

• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
  • D03D49/24—Mechanisms for inserting shuttle in shed
  • D03D49/42—Mechanisms for inserting shuttle in shed whereby the shuttle is propelled by liquid or gas pressure
• • 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
  • D03D47/24—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 by gripper or dummy shuttle

Definitions

• the present invention relates to a weaving device comprising means for forming a shed of warp yarns, with insertion means being disposed on one side or both sides of the shed for inserting a weft yarn formed into a closely packed ball of yarn, which packed ball of yarn unwinds into an elongated weft yarn upon insertion into the shed, said weft yarn having a front yarn end and a rear yarn end, seen in the direction of insertion.
• a weaving device is known, for example from unpublished
• the rear yarn end may be provided with a thickening that is to mate with the holding element, which thickening is in the form of a knot in the weft yam or a twisted-together yarn end, or which is made up of a material other than yarn, for example wax, a plastic, paint, (carbon dioxide) ice, the holding or clamping down of the rear end of the weft yarn can be effected in an efficient manner by driving the pawl, causing the thickening and thus the yam to be stopped or held.
• a thickening is in the form of a knot in the weft yam or a twisted-together yarn end, or which is made up of a material other than yarn, for example wax, a plastic, paint, (carbon dioxide) ice
• Figures 3-11 show other embodiments of a weaving device according to the invention.
• the orientation means 10 is disposed at the edge of the cloth or fabric 3 (side of the shed 2, 4).
• the orientation means 10 is embodied as a plate-shaped member provided with an opening 10a, through which the carrier 24 can be passed upon insertion into the shed 2, 4.
• a second holding element 31 Disposed near the rear tube end 30b is a second holding element 31 , which holds or clamps down the rear yarn end 21 with the thickening 22 so that the weft yam 20 will unwind into the shed 2, 4 upon insertion of the carrier 24 with the ball of yarn 20.
• the insertion of the carrier 24 takes place by means of a pulse of a medium under pressure P, which is introduced into the tube 30 via the rear tube end 30b.
• the orientation means 35 are moved through the insertion tube 30 in the direction of the front tube end 30a together with the carrier 24 (and the weft yarn 20).
• the carrier 24 exits the insertion tube 30 and is "shot” into the shed 2, 4, whilst the orientation means 35 are stopped in the insertion tube 30 near the front tube end 30a by stop means 34, for example projections formed on the inner side of the insertion tube 30. Since the weft yarn is held by the orientation means 35, the weft yarn 20 unwinds into the shed 2, 4. Then the orientation means 35 are deactivated and moved back to the rear of tube end 30b for the next "shot".
• Figure 11 shows a tenth embodiment of a weaving device according to the invention, which can function as an alternative to the embodiment that is shown in figure 10.
• the retrieving means are configured as a feed-through tube 60 provided with a longitudinal bore 61 and having a front tube end 61b and a rear tube end 60a (seen in the direction of insertion of the weft yarn 21 ). The moment a carrier 24 is inserted into the shed 2, 4 by means of the insertion tube 30, the rear yarn end 23 is cut through by the cutting element 5.

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=34974303

Family Applications (1)

Country Status (4)

Family Cites Families (7)

• 2004
  • 2004-10-29 NL NL1027372A patent/NL1027372C2/nl not_active IP Right Cessation
• 2005
  • 2005-10-14 WO PCT/NL2005/000740 patent/WO2006046856A1/en active Application Filing
  • 2005-10-14 CN CNA2005800373345A patent/CN101048541A/zh active Pending
  • 2005-10-14 EP EP05794265A patent/EP1805359A1/de not_active Withdrawn

Non-Patent Citations (1)

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