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Mechanism for forming a shed, weaving loom equipped with such a mechanism and method of selecting the mobile hook of such a mechanism

A technology of movable hooks and looms, which is applied in textiles, jacquard machines, textiles and papermaking, etc., and can solve the problems of reducing the overall economy

Active Publication Date: 2011-08-31
STOBLI LYON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, resilient abutments can reduce the overall economics of mechanisms incorporating such abutments

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Mechanism for forming a shed, weaving loom equipped with such a mechanism and method of selecting the mobile hook of such a mechanism
  • Mechanism for forming a shed, weaving loom equipped with such a mechanism and method of selecting the mobile hook of such a mechanism
  • Mechanism for forming a shed, weaving loom equipped with such a mechanism and method of selecting the mobile hook of such a mechanism

Examples

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Embodiment Construction

[0026] figure 1 In the loom M shown, a piece of warp yarn 1 is drawn from a reel 2 . Each warp thread 1 passes through an eyelet 3a in the heddle 3 to open the way for the weft thread to pass through, so as to make the fabric wound on the reel 4 . figure 1 Only two healds 3 and 3' are shown in Fig. 2, with heald 3 in the high position and heddle 3' in the low position. The bottom end of each heddle is connected to the structural member of the loom via a tension spring 5 , while its top end is fixed to a harness 6 .

[0027] The shedding mechanism 7 associated with the electronic control unit 8 serves to lift the harness 6 more or less against the return force exerted by the spring 5 . Only the harness 3 associated with the heald is shown in the figure, one end 6a of the harness is fixed to the housing 10 of the mechanism 7, and the harness passes through the pulley block 11 suspended on the suspension rope 12, and the two ends of the suspension rope 12 are respectively fixed...

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Abstract

The invention relates to a shed-forming mechanism (7) for a loom (M). In this mechanism (7) a moving hook comprises a body (20) provided with a nose (202) for bearing against a corresponding knife (14), and a flexible blade (21) secured to the body so as to be capable of moving relative thereto and designed to interact with a retaining lever (16) belonging to the selector device. The selector lever (16) forms a ramp (313) over which a portion (214) of the resilient blade (21) slides when the hook (13) is moved in the vicinity of its top dead-center position. The ramp on which the selector lever slides is shaped in such a manner that the component (FA+FB+FC) parallel to the travel direction (X-X') of the moving hook (13) of the resultant of the forces (RA, RB, RC) acting on the flexible blade (21) when in contact with the ramp (313) in the vicinity of the top dead-center point of its travel and at the beginning of its downward movement (F14), is directed downwards.

Description

technical field [0001] The present invention relates to a shed forming mechanism and a loom incorporating such a mechanism. The invention also relates to a method of selecting a movable hook of such a mechanism. Background technique [0002] In Jacquard looms, the shedding mechanism selectively lifts the healds, each of which has an eyelet for the passage of the warp yarns, positioned higher or lower, depending on the function of the position of the hooks fixed to the top of the heddles. For the weft yarn moved by the loom. As described by way of example in EP-A-1 413 657, such a mechanism comprises movable hooks each provided with a transverse projection capable of cooperating with a lifting knife driven by a vertical reciprocating movement in opposite phase. Each movable hook is fitted with flexible metal blades intended to interact with a retaining bar belonging to the selection device, so as to generally achieve satisfactory results. In addition, the elastic abutment ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D03C3/24
CPCD03C3/12D03C3/24
Inventor 达米安·布歇亚历克西·波特
Owner STOBLI LYON
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