FR2749023A1 - COMFORT SOLE SOCK - Google Patents

Abstract

The invention relates to a knitted sock (30) comprising a leg portion (32, 34) and a foot portion (36, 38, 40) comprising a sole (38) intended to come into contact with the sole. of the foot and comprising a base knit (50) consisting of at least one base yarn (52, 54) forming successive rows made up of stitches which constitute attachment points for the base yarn between two consecutive rows of the knitting of base and an additional wire (58) forming a damping layer on the internal face of said sole. According to the invention, said additional yarn (58) is knitted periodically at most one stitch (56a) out of two so as to constitute a float yarn (58) where the inter-stitch protrudes on the internal face of said sole (38 ). Application to city socks.

Description

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  The invention relates to a sock comprising a sole intended to come into contact with the sole of the foot, on the one hand, and the bottom or upper face of the sole of a shoe, on the other hand, as well as the knitting process. to make this sock. Due to its position, the sole of the sock is subjected to compressive forces due to the weight of the body, to frictional forces against the foot and the shoe due to movements of the foot, for example when walking, and other deformities according to the position of the foot during the various

  movements he performs, not to mention sweating.

  Thus it is preferable to have a sock sole that resists the best possible to all these aggressions while effectively protecting the sole of the foot. Previous achievements have attempted to solve this problem by producing a thicker sole in sponge or loop stitch. In this case, the inner face of the sole comprises an additional yarn knitted at each stitch, this yarn being spaced from the sole by a suitable tool according to a predetermined length which determines the size of the stitch.

terry.

  Typically, we find this type of loop mesh sole for socks worn during

sports activities.

  This loop point solution does not meet the needs of a relatively thin sole for city socks and also requires a specific material, ie the installation of a mobile tool that creates the loop, to add on the machine to

knit the socks.

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  This mesh called point "loop" whose constitution will now be described in connection with Figure 1, is found in certain types of

  sock, for example sports socks.

  The loop knit 8 is made on a knitting machine, only knitting needles being shown here. Two threads are used to achieve this point: a vanishing thread 12, shown in dashed lines in Figure 1, is surrounded by a thread 14 which will be used to create the loops 16. To do this, this knitting machine has in addition, a tool 18 in the form of a hook that will serve to realize

  the loops between each of the stitches of this knit.

  When making this loop point, the tool 18 keeps the crotch of the bottom thread 14 at a certain distance from the knitting needles 10 and the thread 14, this distance conditioning the size of the loops that will be formed when tool 18 is going

release the wire 14.

  In all the following we will use the term "point" to generally designate the type of knitting used, while the term "mesh" will designate each zone

hanging from one rank to another.

  The invention aims to provide a sock with a comfortable sole that is to say sufficiently thick, soft and soft to protect and support the best of the foot, this sock can be worn in a shoe and realized in a simple way on a knitting machine the socks without

have to modify it.

  For this purpose, to solve this problem, it is provided according to the invention that the knitted sock composed of a leg portion and a foot portion comprising a sole, intended to come into contact

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  with the sole of the foot and having a basic knit made of at least one basic yarn forming successive rows composed of stitches constituting attachment points of the basic yarn between two consecutive rows of the base knit and one additional thread producing a damping layer on the inner face of the sole, is characterized in that the additional yarn is knitted periodically at most one out of two stitches so as to constitute a float yarn whose interstage protrudes on the inner face

of the sole.

  The embodiment of the sock sole according to the invention uses the principle of float yarn as can be found in an embroidery craft for making purely aesthetic embroidery on a textile. The float yarn present in the sock sole of the present invention provides additional thickness with respect to the knit constituting the remainder of the sock and thus forms

  a soft contact layer with damping effect.

  Indeed, this float wire will be in contact with the sole of the foot and it will be judiciously provided, for a more pleasant contact, that the additional thread is natural fiber such as cotton or any moisture absorbing fiber. Since the additional yarn is not knitted at all stitches of the basic knit, the crotch of this yarn, that is to say the portion of the yarn extending between two successive stitches is longer than the stitches of the basic knit and forms a flexible bridge. The set of bridges acting as a buffer under the foot forming a layer

soft and fluffy.

  The embodiment of the sole according to the invention is simple to perform on a knitting machine because the thread

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  Float is obtained by adjusting the frequency with which the additional yarn is knitted, that is to say, picked by the needle, the intermediate stitches being skipped (only for the additional yarn). The formation of the interweave of the float yarn is done naturally by skipping the intermediate stitches of the basic knit and does not require a tension of the thread

additional specific.

  The characteristics of the damping layer thus created can be modified by modifying the material and the size of the yarn, the number of consecutive stitches knitted with this additional yarn, the number of stitches and the offset of the bridges coming from the float yarn between two consecutive rows. of

knit constituting the sole.

  Preferably bridges will be made so that the knitted stitches with the additional yarn or anchor points are distributed in

  staggered over the entire surface of the sole.

  On the edge of the sole no seam is required because this extra yarn is knitted

with the rest of the sole.

  The invention will be better understood, and secondary features and their advantages

  will appear during the description of a mode of

  realization given below as an example.

  It is understood that the description and drawings

  are given only as an indication and not limiting.

  Reference will be made to the accompanying drawings, in which: - Figure 1 already described schematically shows the realization of the conventional loop point;

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  - Figure 2 shows schematically the point with float wire found in the sole of the sock according to the invention; - Figure 3 is a schematic side view of a sock on which one can differentiate the different constituent parts of the sock; - Figure 3A shows the different points used for the realization of the hem of the sock; - Figure 3B shows schematically the point used to make the body of the sock; FIG. 3C represents the point constituting the sole of the sock of FIG. 3; - Figure 4 is an enlarged schematic view of the inner face of the edge of the sole of the sock according to the invention. and - Figure 5 illustrates the successive positions of a knitting needle to achieve a new

mesh on a knit to a thread.

  The one-thread knitting principle utilizes a tricot knitting needle 10, one of which is shown in Fig. 5 in successive positions during the creation of a new rank. The needle 10 is composed of a hook-shaped head 10a, a movable part 10b that can close the hook 10a to form a needle eye (high position of the moving part lob) or leave the hook open ( low position of the moving part lob) and a rod which is thinned on a section 10c close to the movable part 10b, in

opposite direction to the hook 10a.

  In the initial position (FIG. 5A), the mesh 9 which has just been knitted surrounds the thinned section 10c while being attached to the stitch 7 of the row

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  previous hook 10a is open and hooked the wire 11 to form the next mesh. Then (Figure 5B), the needle 10 is lowered, the mesh 9 slides upwardly along the needle shaft and rotates the moving part lob which closes the hook. The thread 11 is trapped in the eye of the needle. When the needle continues to descend (FIG. 5C), the mesh 9 rises all along the eye of the needle and even beyond so that the thread 11 passes into this mesh 9 forming a loop that will become the next Knit mesh (Figure 5D). To be able to continue the knitting, the needle must return to the initial position: it goes back (FIG. 5E) and the mesh 11 trapped in the eye lowers the moving part lob which opens the eye, the mesh 11 can then escape out of the eye and slide down the length of the needle shaft while the needle finishes up to its initial height so that (Figure 5F) the new mesh 11 surrounds the thinned portion 10c of the needle shaft. The

  process can start again for the next rank.

  Referring now to Figure 2 which shows the point with float wire 20

  which is used in the sock according to the invention.

  This point 20 made by knitting with needles, comprises a plastering wire 24 (shown in fine continuous line in Figure 2), a ground wire 22 (shown in thick solid line in Figure 2), these two son being knitted together, and an additional yarn 26 which is knitted one in four stitches in the example shown in Figure 2 so as to constitute what is called a float yarn. In this way, the crotch of the float wire 26 is at a certain distance from the basic knit constituted by the

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  wires 22 and 24 so as to form an additional flexible layer. Figure 3 schematically shows a sock flattened side view. This sock 30 has a hem 32, typically having a cuff, a shank 34 extended on its rear face by a heel 36 and a sole 38, the whole being terminated at its end by a point

closed.

  The different points constituting this sock will now be described in relation with FIGS. 3A to 3C, the examples of selected points being nonlimiting and modifiable without this being necessary.

depart from the scope of the invention.

  The upper part of the sock intended to surround an area of the calf is indicated by the reference 32 in FIG. 3 and, in the example chosen, consists of a hem with a cuff. In FIG. 3A the point 42 represents the point used to make the back of this part 32 and consists of a single knitting yarn 44. The stitch 46 constituting the outer hem of the upper part 32 of the sock also comprises a single knitting yarn 44 in which an elastic thread 48 is woven so as to constitute an elastic holding zone of the sock. This elastic yarn 48 passes alternately one mesh out of two in front of the needle (mesh 48b) and

behind the needle (mesh 48a).

  The body or shank 34 of the sock consists of a knit made by plating, that is to say comprising two knitted yarns together: a plastering thread 52 (shown in fine lines in FIG. 3B) placed in the middle of each mesh, and here on the face

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  internal sock at the crotch and

  a bottom wire 54 (shown in thick line).

  We will now describe in connection with Figure 3C the point 56 constituting the sole of the sock according to the invention. This point 56 comprises, as in the case of the body 34 of the sock, a knit base made by vanisage from a plaiting wire 52 and a bottom wire 54. This point 56 further comprises, according to the invention, an additional thread 58 which will constitute a float yarn because it is knitted periodically in the knit so as to achieve a fairly large meshes. In the example shown in FIG. 3C, the additional yarn 58 is knitted one in four stitches (stitch 56a) so as to form a bridge extending over three non-knitted stitches (stitches 56b) with this yarn 58. In FIG. 3C two successive rows of knitting have been represented. It can be seen that a mesh 56a knitted with the additional yarn 58 continues on the next row by a mesh 56b not knitted with said yarn 58 so as to create a stitch shift 56a in two consecutive rows. This is true for all the sole 38, except, possibly, on its edges, on which all the stitches of the last row are knitted with the thread 58 to obtain a

straight edge.

  Along the edge of this sole 38, the float wire 58 is cut so that its end 60 is not retained by a seam but the cohesion of this float yarn is ensured because it is knitted in the basic knit 50 sock made up

by the wires 52 and 54.

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  In Figure 4 there is shown the area 4 of Figure 3 on an enlarged scale. This Figure 4 represents an enlarged schematic view of the edge of the sole of the sock seen from the side of the inner face of the sole. The sole 38 is adjacent to an area which will cover the top of the foot and which is constituted by

  the mesh 50 realizing the whole body of the sock.

  This diagram shows the float wire 58 present in the mesh 56 of the soleplate 38 and extending beyond the other wires 52 and 54 (not shown in this figure) of the

  50 mesh of the basic knit of the sock.

  The end 60 of the threads 58 is also visible in the form of free ends protruding above

basic knitting.

  In the embodiment shown, two consecutive rows 56 'and 56 "of the sole bear threads

  floats 58 in staggered relation to each other.

  The density and distribution of the float wire on the inner face of the sole of the sock can be modified without departing from the scope of the invention. Thus to obtain a relatively large cushioning layer, preferably, each row of the knit of the sole comprises an additional thread 58 and the additional thread is knitted at least once.

mesh out of four.

  It is desirable that the position of a knitted stitch with the additional yarn is shifted between two consecutive rows of said sole and preferably one will have a staggered distribution as

in the case of Figure 4.

  Here is an example of wires that can be used

  for the manufacture of a sock according to the invention.

  It is possible to use a cotton yarn 54 having

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  a thickness of 1 / 30nm (metric number), a plastering wire 52 in lycra of size l / lllnm and a wire

  float identical to the thread, that is to say cotton.

  In a simple way, it will be possible to provide the additional thread over the entire width of the sock, that is to say half of the perimeter of the tube section constituting the sock so as to obtain a sole in the shape of a rectangle. But it can also be provided that the float wire extends over different lengths in different areas of the sole so as to obtain a sole with float wire whose contour is closer to the actual contour of the plant.

of the foot.

  To complete the protection aspect of the foot that is encountered in the sole with cushioning layer of the sock according to the invention, it can further provide a reinforced heel 36 having the following characteristics: a complementary part intended to come into contact with the kick laterally extends the heel on either side of it and consists of a basic knit, the heel is knitted without reduction of stitches, the stitch of the heel knit has an additional thread with respect to the basic knit that is larger than the other yarns of the base knit so as to reinforce the heel, and at least one localized area of the complementary portion is knitted in a more openwork stitch than the point of the base knit forming the remainder of the complementary part so as to constitute a localized zone of elasticity and, preferably, the localized zone is adjacent to the lateral edge of the heel. he 2749023

Claims (7)

  1. Knitted sock (30) composed of a leg portion (32,34) and a foot portion (36,38,40) comprising a sole (38) intended to come into contact with the sole of the foot and comprising a base knit (50) consisting of at least one base yarn (52,54) forming successive rows composed of stitches which constitute hooking points of the base yarn between two consecutive rows of the base knit and an additional thread (58) producing a damping layer on the inner face of said sole, characterized in that said additional thread (58) is knitted periodically at most one stitch (56a) out of two so as to constitute a float thread (58 ) o the interstices protrude on the inner face of said sole (38).   Knitted sock (30) according to claim 1, characterized in that the additional yarn (58)   is a moisture absorbing fiber.   3. Sock (30) knitted according to claim 1, characterized in that each row of the base knit (50) of said sole (38) comprises a thread additional (58).   4. Sock (30) knitted according to claim 1, characterized in that the additional thread (58)   is knitted at least one mesh (56a) out of four.   Sock (30) knitted according to claim 4, characterized in that the position of a mesh (56a) knitted with the additional thread (58) is shifted between two consecutive rows of the basic knit (50) of said sole (38).   Knitted sock (30) according to claim 3, 12 2749023   characterized in that the additional yarn (58) is knitted with one stitch (56a) out of four and that the stitches (56a) of the base knit (50) knitted with   the extra wire are staggered.   7. A method of knitting a sock (30) comprising a leg portion (32,34) and a foot portion (36,38,40) comprising a sole (38) in which a knit is made base material (50) consisting of at least one basic yarn (52,54) forming successive rows composed of stitches constituting anchoring points of the basic yarn between two consecutive rows of the base knit and a yarn further (58) providing a cushioning layer on the inner face of said sole, characterized in that said additional thread (58) is periodically knitted at most one stitch (56a) out of two so as to form a float yarn (58) where 'inter-mesilles protrudes on the inner face of said sole (38).