ES2346787T3 - TRANSPIRING MEDIA. - Google Patents

Abstract

The knitted sock, comprising a main body (3) with a toe (1) and heel (2), has aeration zones (4, 5, 6, 7) below and above the toes, on top of the foot, and beneath the sole. The first three zones are transverse, narrow lens- or lozenge-shaped, and made from stitches of reduced density. The zone beneath the sole is made from a series of lengthwise strips (71), also with reduced density, alternating with normal strips (72) to form a rectangular shape. The aeration zone on top of the foot can also have stitches of reduced density alternating with stitches of normal density.

Description

Breathable stocking

Technical field

The present invention relates to an average breathable / aerated fabric comprising augmented areas permeability to favor the passage of air.

Existing technique

Different types of socks are known to eliminate or prevent perspiration of the feet by aeration or breathing of the feet through the middle.

BRIER US 5,319,807 describes a medium intended to control humidity creating a natural environment of the foot Moisture is eliminated by a multilayer structure of A part of the average. This multilayer structure has an effect of drainage or capillarity so as to transfer moisture from the perspiration zones towards evaporation zones.

US 6,341,505 of DAHLGREN refers to a half woven with hydrophilic threads and hydrophobic threads, so as to transfer the moisture emanating at the foot level by means of a drainage or capillary effect. A particularity of this mean is to create a separation between the front and the back of the stocking thanks to rings woven with hydrophobic threads; These rings surround the sole and instep. Therefore, the known principle of this solution consists primarily of rinsing or drying the skin locally with the hydrophilic thread and then in removing the moisture from the hydrophilic textured area by hydrophobic thread towards an area where evaporation can be easily actuated. -
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The rings of the tubular zone play the function of extracting moisture from the toes area to then transfer it to an evaporation zone outside the shoe. The aggregate of hydrophobic material primarily plays the function of increasing the drainage effect and, externally to footwear, This favors evaporation.

However, this solution presents the inconvenience of transferring moisture through the average practically from the tip of the middle to the other end of the latter. The effectiveness of this way of removing moisture is relatively difficult to optimize since this effectiveness depends on the relationship between hydrophobic fibers and fibers hydrophilic

Document US 5,724,836 of GREEN describes a half fitted with a breathable knitted upper with dots relatively loose This product has the disadvantage of not involve the areas of natural perspiration of the foot under the arch of the foot or in proximity of the toes. Also, in the plane of comfort, this average has the disadvantage of being very thin in the instep area and not cushion the eventually very localized constrictions that the shoe can exercise on the foot.

EP 1,275,761 of KUNERT-WERKE GmbH describes an average especially for sports and for pedestrism comprising channels of ventilation (50, 80) in the lower and upper part of the average. These channels at the bottom are transverse channels just to bias and the channels at the top are distributed from the side along the joint line between the reinforced part (10) of the average and its corresponding functional zone (7) superior.

This document deals primarily with the nature of the threads used for texture, a basic thread (6) to which a reinforcement thread (11) is mixed in the area of reinforcement (10) as well as in the functional zone (7), the passages of air (50) are arranged in proximity to the separation line (9) with the reinforced zone (10) in a band-shaped zone (60), which part of the separation line (9) near the tip (4), and Climb along the middle to your collar (2). In addition, it has been including a certain number of parallel lines of air channels (fifty).

The channels of the reinforced zone (80) arrive up to the level of this band (60) of air channels (50).

This is how to create an air circulation starting from the sole of the middle (reinforced zone (10)) to go up the sides, in the functional zone (7) to the collar (2) of the average.

But this solution has a certain amount of inconveniences of fragility and decrease of comfort. Indeed, the transverse or almost transverse channels they occupy virtually the entire surface of the middle palm create fragile lines These lines oriented transversely with regarding the direction in which efforts are exerted when you put on or take off the stocking or in the case you put on or take off a shoe, they must convey these tensile stresses that can be considerable. The texture of a stock clearly resists these efforts, but weakened transverse lines constitute virtually break start lines. These lines In addition, they are requested by foot movements inside the shoe they exercise, at the points of these channels of air, considerable efforts that deform and wear them out.

Also, these transverse lines breaking the continuity of the middle palm favors the formation of transverse folds under the sole of the foot that create a lack of important comfort.

Finally, this media is intended to create a effect of pumping the air that affects the palm, but not the Toes that are confined at the tip of the stocking.

Purpose of the invention

The purpose of the present invention is to develop an aerated or breathable, knitted stocking, that allows extremely effective ventilation without reducing the average comfort.

Description and Advantages of the invention

To this end, the present invention relates to an aerated or breathable stocking of the type defined above, of knitting, characterized by understanding:

-

a transverse aeration zone at the base of the toes in the upper and lower part of the average, these areas being formed by reasons of reduced texture density,

-

a aeration zone on the instep formed by an extended sector, transverse due to reduced texture density,

-

a aeration window below the sole of the foot at the level of the arch of the foot, such a window being formed by a plurality of Longitudinal bands of reduced texture density.

The average according to the present invention has permeable aeration zones in the most requested positions by perspiration and they do not need special mechanical protection from foot with respect to the shoe.

Aeration zones do not weaken additionally the average that, in practice, presents the same mechanical resistance than a classic average without aeration zones according to the invention.

Finally, the average does not reduce comfort or level of the sole of the foot in the shoe, nor at the level of other highly requested contact areas such as toes.

Also, the transverse aeration zones a level of the base of the toes, that is at the base of the phalanxes benefit from the decoupling that exists naturally in this position of the foot and the volume of moist air that can accumulate in this area. The two transversal zones lower and higher than average, thus, they cannot create a ventilation effect that ensures extremely effective aeration in This generally confined area of the shoe.

The aeration window below the floor of the foot creates a very permeable area that favors the replacement of air between the internal part of the average and the external part at level of the arch of the foot. This suction effect also pumps the air from the sole of the foot and creates an air circulation effect that removes hot air and eventually loaded with moisture, inside of the average in the gap between the average and the shoe preventing that this air comes back into the middle.

The completion of the aerated stocking and breathable, according to the present invention does not present modifications  important manufacturing since the aeration zones upper and lower than the average at the level of the base of the fingers of the feet, the aeration zone on the instep and the window of aeration at the arch of the foot are achievable as drawings tissues, and made in negative, that is, suppressing one or more  threads that would normally serve to compose these drawings.

According to another advantageous feature, the zones transverse have a narrow lens shape to determine an exact ventilation sector at the base of the fingers of the feet.

According to another advantageous feature, the reasons with reduced texture density are made up of texture where at least one thread with respect to the texture thread from nearby areas, these texture points alternating with points of normal texture to form so highly localized points of increased permeability.

According to another advantageous feature, the area of aeration of the instep, is shaped like a losange motif formed by a succession of texture density points reduced alternating with density points equal to that of the area circumstant

According to another advantageous feature, the bands Longitudinal are flanged laterally by passage areas formed by a succession of points of reduced texture density alternated with points of texture density equal to that of the area circumstant These longitudinal bands constitute a transition mechanics with the window itself.

Advantageously, the shape of this window is rectangular.

Drawings

The present will be described below invention with a greater level of detail referring to a exemplary embodiment of a ventilated and breathable stocking according to the same invention schematically represented in the drawings annexes, in which:

- Figure 1 is a side view of a half,

- Figure 2A is a schematic view from above average,

- Figure 2B is a schematic view from below average,

- Figure 3 is a cross section in amplified scale from the bottom of the average at the level of the aeration zone

Description of the embodiment of the invention

According to Figure 1, the present invention is refers to a breathable and airy stocking made of fabric. This medium comprises areas of permeability to favor the passage of air or local air replacement.

This average can be a city average, but it is mainly a media for sports or for pedestrism that includes reinforcement and comfort zones, of an increased thickness to attenuate and / or distribute the local pressure between the shoe and the
foot.

Therefore, the average includes, at the tip (1) and at the bottom (2), a reinforced surface constituted for a special texture with the addition of threads that reinforces these surfaces and improves your comfort, such as a fabric of "bouclette".

In the previous area of the average, after the tip (1), in the area where the base of the fingers of the feet, that is, at the beginning of the phalanxes, the lower part (2) and the upper part (3) of the mean comprise a transverse zone aeration (4, 5). These transverse zones (4, 5) of form lenticular or lunula, occupy the width of the average in the part top and bottom. Each of these zones transversal is constituted by a motif of density texture reduced This motif as well as a drawing is formed by a alternation of knitted dots with and without supplementary threads or which the number of woven threads is decreased, to create more permeable points than nearby tissue points. Is done thus a succession of points of preferential passage or exchange preferential air without these points constituting an area Continuous tissue thickness reduction, weakened or perceptible to the touch. In front of and behind these two zones transverse aeration (4, 5), the average is woven according to elasticity and comfort considerations for foot contact with the shoe These two zones (4, 5) more permeable, overlapping at the base of the toes, they create an air vent which, in this way, crosses from one part to the other the average going through the interstitium of the toes or turning around them.

At the top of the average, at the level of instep, there is an aeration zone (6) formed by a sector extended, shaped like an ellipse or losange whose major axis is transversely oriented. Similarly, this area (6) more permeable is formed by a transverse motif of density of reduced texture without constituting continuous lines but only one succession of preferential passage points. There are no lines of weakening that could transversely weaken the texture or create a lack of comfort since touch the thickness of the Matter has no discontinuities. This texture density reduced is obtained for example by suppressing a thread of texture corresponding to the motif to be made. The drawing comes performed in negative and corresponds to the absence of a thread of texture.

In this way, this aeration zone (6) in the instep retains its thickness being simply interrupted by texture points of reduced density. These points, preferably, are arranged transversely aligned to favor folding without constituting a continuously weakened transverse line, but retaining the thickness of the average in this contact area between the instep and the shoe.
to.

The lower part (3) of the mean comprises a aeration window (7) of the soles of the feet. This window of Aeration (7), of limited surface area, is located at arc level of the foot practically outside the usual support surface of the sole of the foot. It is formed by a plurality of bands longitudinal (71), whose texture density has been reduced from way of constituting a grid-shaped structure whose "bars" would be normally woven bands (72) while the longitudinal intervals constitute the bands (71) of reduced texture density. The intervals (71) are oriented longitudinally along the axis of the mean, from front to back, to form passage lines between longitudinal bands (72)  of texture that have retained their thickness. Longitudinal bands ensure the mechanical resistance of the mean in the sense longitudinal to homogeneously transmit the efforts of traction at the time the average is put on / off or at the time Put on or take off your shoes. Anyway, this resistance  longitudinally prevents the formation of transverse folds that the Foot movements inside the shoe could generate. In your case, the aeration window (7) is integrated in a texture part of "bouclette" intended to improve the smoothness of the average by flattening. The aeration window (7) can be flanged with a part or both parts by an intermediate zone (73) of structure similar to that of the upper zone (6) and composed of a succession of points of reduced texture density and points of Normal texture density, such as the surrounding area.

While at the level of the aeration window (7), the average is not in continuous contact with the arch of the foot, this window, anyway, plays a generated pumping function by the movement of the foot inside the shoe and the deformation of the moving foot. Volume variations create a foot level air exchange through the window of aeration.

Figures 2A and 2B show more the shape of the different aeration zones and the aeration window

Figure 2A is a plan view of the part upper (3) than average without showing the leg. Behind the anterior limb or tip (1) is the transverse area of aeration (5) shaped like a thin lens or losange. This zone is delimited by an interrupted section to highlight it in the He drew. In effect, this area is not highlighted by an outline, but it is simply occupied by permeable points  of preferential air passage, represented by small crosses. The distribution of these crosses is transverse, but without continuity. The permeable points are separated by the zone by tissue points lacking permeability preferential, fabrics such as the contours of this area.

Similarly, the top view shows the widened shape, also transversely directed, of the aeration zone (6) of the instep. Similarly, this area is highlighted in the drawing by a stretch of points that does not really exist. The preferential passage points are represented by a multitude of small crosses of the same structure as that of the transverse aeration zone (5). The distribution can be done in straight or curved transverse lines, but without the preferential passage points being linked. They are always separated by points of normal texture such as points made outside the aeration zone
(6).

The bottom view of Figure 2B shows the structure of the other transverse aeration zone (4) across said zone (5) and the aeration window (7) formed by bands of permeability (71) separated by normal textured bands (72), with the same structure as the other texture points of the part lower (2) at least in the area surrounding the window (7). The bands constituted by the intervals (71) have a density of reduced texture, obtained as indicated above. These intervals here are beaded by intermediate zones (73) of both sides. These intermediate zones are constituted by a discontinuous distribution of permeable points such as points fabrics with a reduced texture density of the zones (4, 5, 6) cited above.

Figure 2B shows that the window (7) is located in a substantially symmetrical position with respect to the longitudinal axis not shown from the mean. This allows not distinguish the averages for right foot and left foot and, therefore, manufacture a single type of media. The same consideration applies to the arrangement of the aeration zones (4, 5, 6) already described.

The schematic cross section according to III of the aeration window (figure 2) represented in figure 3 shows the support effect constituted by the average thickness which is preserved for the entire width of the bottom forming simply the longitudinal intervals (71), permeable to air. In this view, the outline of the sole is indicated with the reference P and the sole on which the average is based is represented by the reference S. The window (7) is flanged with the two sides by intermediate zones (73) schematized with lines of strokes that cross the texture thickness of the bottom (2).

The succession of bands of greater thickness (72) and bands of reduced thickness (71) form cavities that constitute pumping cavities that, depending on the movement of the foot and the crushing subsequent to the distention of the matter of the media, create a circulation air through the middle wall with respect to these areas of reduced thickness. This air circulation ventilates the lower part of the
foot.

The air set in motion in this way, by On the other hand, it can be aspirated or expelled by the general movement of the foot inside the shoe during a walk.

While the present invention relates mainly half-knitted for pedestrism or sports exercises, in general with reinforcement thicknesses that they perform a mechanical function of foot protection, the same The invention also applies to walking socks.

Claims (6)

1. Aerated / breathable knitting medium comprising areas of increased permeability to favor the passage of air, characterized by the fact that it comprises:

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a transverse aeration zone at the base of the toes (4, 5) at the top and bottom of the middle, such areas being formed for reasons of reduced density of texture;

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a aeration zone (6) on the instep formed by an extended sector, transverse due to low texture density;

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a aeration window (7) below the sole of the foot at the level of arch of the foot, said window being formed by a plurality of Longitudinal bands (71) of reduced texture density.

2. Media according to claim 1, characterized in that the transverse areas (4, 5) have a narrow lens or losange shape. 3. Media according to claim 1, characterized in that the reason for reduced texture density of the transverse aeration zones (4, 5) at the base of the toes and the aeration zone (6) of the instep, it is constituted by a succession of points of reduced texture density by suppressing at least one thread of texture with respect to the surrounding texture. 4. Media according to claim 1, characterized in that the aeration zone (6) of the instep has a losange shape constituted by a transverse succession of points of reduced texture density alternated with points of density equal to that of the surrounding area . 5. Media according to claim 1, characterized in that the longitudinal bands (71) are laterally flanged by passage zones (73) formed by a succession of points of reduced texture density alternated with points of texture density equal to the from the surrounding area. 6. Media according to claim 1, characterized in that the window (7) is a rectangular shaped area.