FR2778674A1 - Woven strap with flat ends and an intermediate tubular cord - Google Patents

Abstract

The woven handle grip, with flattened ends and a cord between them, has a flattened section of a tubular fabric formed by ground filaments (4) locked in place by local binding filaments (5). An intermediate round or oval link is formed by a tubular ribbed twill or satin structure. The bonding filaments (5) pass through the intermediate section, for one part, through the core or spread on one of the two surfaces, with the ground filaments (4). For the other part, the weft density is increased for the intermediate section by 40-120%. Of the ground filaments (4) used to form the flat end sections of the strap, 30-70% form a core within the intermediate round or oval strap section. An INTERMEDIATE CLAIM is included for a prodn. process using a needle (6) loom with a V-shaped or straight comb (8). The comb (8) is fitted with flexible hackle pins and has vertical displacement according to the horizontal shed with its alternating movements and equal or different lengths. The flat sections of the strap are formed with the comb (8) in the lower position, to give the max. fabric length for the ground filaments (4) to be used as warps and the bonding filaments (5) as wefts. The round intermediate section of the strap is produced with the comb (8) in the upper position, where the bonding filaments (5) are used with the core to increase the weft density by 40-120%. Preferred Features: During the prodn. of the center intermediate section, 30-70% of the ground filaments are passed through as the core for the cord structure.

Description

The invention relates to straps made on weaving looms

  needles with V-shaped combs, ie of variable width by vertical displacement of the comb and horizontal displacement of the needle, or

  with straight comb with flexible teeth.

  Such straps are intended to serve as suspenders, handles, straps, and are, in general, composed of son of synthetic material. When such a strap is tightened in the hand, it tends to fold in on itself by forming folds, which are unpleasant on contact and are sometimes traumatic. These folds can also promote wear

  of a rubbing element on the strap.

  The object of the present invention is to remedy this by providing a flat strap with locally a cord, which is not injurious.

  for humans and not aggressive for the environment.

  To this end, the strap according to the invention comprises a flat part composed of a tubular formed by several series of bottom wires, linked by binding wires and, locally, a round or ovalized part formed by a tubular twill weave or tubular satin in which, on the one hand, at least the binding threads are passed in the core or concealed on one of the two faces with the bottom threads, and on the other hand, the density of the weft is

  increased by a value between 40 and 120%.

  Thus the tubular cord is integral with the strap proper, which precedes and succeeds it. For the cord with a diameter of less than 3 mm, the binding wires are included with the bottom wires on one of the two faces, while for the cords with a diameter greater than 3 mm, the binding wires form a core lining the inside. This core provides bulking to the tubular cord but, above all, improves its contact with the hand and, by maintaining the section of the cord in a curvilinear configuration, prevents any formation of folds which may be aggressive for the hand or

  for materials coming into contact with this cord.

  In one embodiment of the invention, 30 to 70% of the threads

  bottom of the flat part pass through the core in the cord part.

  This configuration relates more especially to cords having a diameter of between 3 and 12 mm and which, intended to come into contact with the hand or with materials coming into contact with this cord, must have a larger core offering better

taken and some fluffy.

  The invention also relates to the method for manufacturing

this strap.

  This process consists, with a needle loom with "V" or straight comb with flexible teeth, movable vertically relative to a substantially horizontal crowd, to be performed alternately and on equal or different lengths: - on the one hand, the flat part of the strap, with the comb in the low position giving the greatest width to the ply and by binding the bottom wires, arranged in a chain, by means of the binding wires, - and on the other hand, the round part , with the comb in the high position giving a narrow width to the ply and with a tubular twill or tubular satin weave, passing the binding threads, either in the core of the cord, or in its envelope and increasing the density of the weft

between 40 and 120%.

  This process therefore makes it possible to continuously manufacture a strap comprising, on lengths which can be adjusted and alternately,

  flat parts and round parts.

  In one form of implementation and in the phase of realization of the round part, it also consists in passing in soul between

70% of the bottom wires.

  The applications of such a cord strap are very numerous. This is how this strap can form bag handles, reins for riding, but also, in its smallest dimensions, eyelets for shoes. In this particular application, the eyelet is composed of a central cord-shaped part bordered by two parts

  flat for attachment to the upper of the shoe.

  Regardless of the aesthetic appearance obtained by such eyelets, their cord parts coming into contact with the lacing member

  are not aggressive on this organ.

  Other features and advantages will emerge from the

  description which follows with reference to the attached schematic drawing.

  Figure 1 is a partial perspective view of the means

  essentials of the needle loom illustrating the manufacturing process.

  Figure 2 is a perspective view of a cord strap obtained.

  Figure 3 is a perspective view of an eyelet.

  In FIG. 1, the reference numeral 2 designates a heddle frame, 3 the heddles carried by the frames 2, 4 the strands of the shed constituting the bottom strands and 5 a tying thread, taken by a woofer 6 pivoting around 'a vertical axis 7 and able to engage in the crowd in relation to the chosen armor. 8 designates a "V" comb connected to means able to move it vertically to give the crowd a greater or lesser width in relation to the spacing of its branches in the area of contact with the crowd. This comb can be replaced by a straight comb with flexible teeth. The reference 9 designates the knitting needle receiving the

frame 5 provided by the screen maker 6.

  The strap obtained by this loom alternately comprises flat parts 10, and almost round parts 12, forming a bead as

shown in figure 1.

  The flat part 10 is composed of bottom wires 4 linked in a tubular weave by binding wires 5. The bottom and binding wires are made of synthetic material and for example of polyamide and have a count which

  depending on the application, varies between 150 and 1600 denier.

  To pass from the flat part 10 to the round part 12, the comb 8, which until then was in a position in which the interval between these two branches 8a gave maximum width to the sheet, is moved vertically so as to tighten the tablecloth. Simultaneously, the weave is replaced by a tubular twill weave, for example 7 top and 1 bottom, or tubular satin, where the binding threads 5 and part of the bottom threads are passed through the core, simultaneously with an increase in density. weft ranging from 40 to 120%. Under these conditions, the binding wires and the bottom wires, which are not retained to form the tubular bead 12,

constitute the soul of this cord.

  By way of example, a strap formed by polyamide bottom threads having a count of 940 decitex, and polyamide binding threads having 210 denier, is composed, in its flat part, of 4 series of 42 threads bottom and 10 threads of binding. Its round cord-shaped part is formed by 2 times 48 threads, while the core is made up of 2 series of 42 bottom threads and 10 tying threads. This round part has a diameter of

  6 mm, while the flat part has a width of 22 mm.

  The transition between the flat part and the round part can be carried out on a needle passage or on the contrary on several passages as shown in FIG. 2, and this for each of the ends of the cord. Of course to go from the cord to the flat strap, the reverse process is implemented, which results in a reduction of the weft from 8 to 16 strokes per centimeter, to allow the reinsertion of the

  all the bottom and binding threads.

  It is specified that the number of wires constituting the core depends on the size of the wires used, but also on the size of the cord, and that these data need not be specified because they are well known.

of the skilled person.

  Such cord straps are very homogeneous and therefore very resistant, while offering a certain comfort when used

  as a means of carrying or pulling.

  Figure 3 shows that cord straps of small widths and sectioned so that the round part 12a is central and bordered by flat parts 10Oa can be used to form eyelets. Under these conditions the flat parts 10a allow the fixing of the eyelet on the upper 20 of a shoe and the cords 12 form the

  eyelets proper intended to cooperate with a lacing element 22.

Claims (5)

  1. Flat cord strap characterized in that it comprises a flat part (10) composed of a tubular formed by several series of bottom wires (4), linked by binding wires (5) and, locally, a round (12) or ovalized part formed by a tubular twill or tubular satin weave in which, on the one hand, at least the binding threads (5) are passed in the core or concealed on one of the two faces with the threads background, and on the other hand, the density of the frame is increased by a value between 40 and%. 2. Strap according to claim 1, characterized in that 30% of the bottom wires (4) of the flat part (10) pass through the core in the cord part (1 2).   3. A method of manufacturing the strap according to claim 1, characterized in that it consists, with a needle loom (6) with comb (8), in "V" or straight with flexible teeth, movable vertically by in relation to a substantially horizontal crowd, to be produced, alternately and on equal or different lengths: on the one hand, the flat part (10) of the strap, with the comb (8) in the low position giving the greatest width to the ply and by linking the bottom threads arranged in a chain, by means of the tying threads (5), - and on the other hand, the round part (12), with the comb in the high position giving the ply a small width and with a tubular twill or tubular satin weave, passing the binding threads, either in the core of the cord or in its envelope, and increasing the density of the weft between 40 and 1 20%.   4. Method according to claim 1, characterized in that it consists, in the phase of production of the round part (12) forming   cord, to pass between 30 and 70% of the bottom wires (4) in the core.   5. Shoe eyelet formed from the flat strap according to claim 1, characterized in that it is composed of a central part (12a) in the form of a cord bordered by two flat parts (10a) for its   attachment to the upper (20) of the shoe.