FR2510362A1 - FOOTWEAR THAT CAN BE USED AS A LEISURE OR SPORTS SHOE - Google Patents

Abstract

THIS SHOE IS CHARACTERIZED BY THE FACT THAT ITS SOLE 3 IS CONNECTED TO THE FOOT 1 ONLY BY A BORDERING ZONE 2 OF THE INTERNAL FACE OF IT AND BY SLICE 4 OF THE SAID ZONE, WHICH PARTIALLY COVERS SLICE 8 OF THE SOLE. CONTRARY TO WHAT WE MAY BELIEVE, IT HAS BEEN REALIZED THAT AN IMPECCABLE, RESISTANT AND WATERPROOF CONNECTION IS CREATED BETWEEN THE SOLE AND THE UPPER. ALL THE MATERIAL OF THE UPPER IS THEN VISIBLE FROM THE EXTERIOR, WHICH GIVES A BETTER AESTHETIC APPEARANCE TO THIS SHOE. PROVISION MAY FURTHER PROVIDE FOR THE EDGE OF ANY INNER SOLE 5 TO ENTER ONLY A SHORT LENGTH IN THE AREA OF COVERAGE BETWEEN UPPER AND SOLE, THIS INNER SOLE CAN BE ASSEMBLED WITH THE UPPER BY ONE OR MORE LINES OF STITCHING .

Description

FOOTWEAR THAT CAN BE USED AS A LEISURE SHOE

OR SPORT.

  The subject of the invention is a shoe, which can also serve as a leisure or sports shoe, comprising a sole made of an elastomer, for example made of polyurethane foam, the shoe being able to be in one piece by molding or

  assembled with a prefabricated sole molded separately.

  For the manufacture of one-piece shoes by direct attachment of the sole, the process used until now consisted in covering the outside face of the lower edge of the vamp, over a certain height, with the material constituting the sole, in order to obtain a correct and resistant connection between the vamp and the sole As a result, these shoes always presented, at least optically, a thick sole, which gave them a heavy appearance, even when the material of the sole was, by itself , light This impression of thickness was further reinforced by the fact that, for reasons of

  solidity, the material of the sole surrounding the boron zone

  duriere of the vamp must have been relatively thick, hence a wide sole Or, a large width gives, especially

  lady shoes, an unsightly appearance

  was that we remained very limited in the choice of form

  different types of shoes.

  In addition, in known shoes with a sole fixed by molding, care had to be taken to ensure the safety of the connection between the upper and the sole When,

  in particular, the upper was in smooth leather and the sole in soft

  polyurethane, adhesion difficulties arise

  were between the two materials To avoid this, the leather had to be scratched before the two materials were assembled. This not only resulted in the need for an additional operation, but also an imprecision of the edges of the edge of the vamp in the area thus made rough For reasons of manufacturing safety, the rough part often exceeded the area of overlap of the vamp by the sole, which made it visible on the shoe

  finished From then on, we could no longer carry out

  ches useful, which compromised the appearance of the upper, often made of an expensive material, sometimes even causing scrap.

  The invention aims to eliminate the pre-

  cited by creating a shoe which, while allowing new forms, makes the manufacturing simple and S 1 re This shoe must be able to be made in one piece, but

  also with a prefabricated insole.

  This problem is solved, according to the invention, by

  assembling the sole with the upper only by a cover

  limited to the inside and to the edge of the foot

  gene, the border area of said upper covering

  tielle the edge of the sole Indeed, contrary to what one could believe, it turned out that an impeccable connection, resistant and waterproof is thus achieved between the sole and the upper All the material of the upper is then visible from the outside, which gives a better

optical aspect to this shoe.

  The sole can be made, as in the past, in a manner well suited to the foot and have a relatively high thickness. But as the material of the vamp partially covers the external face of the sole, part of the thickness of the sole is inside the shoe, the configuration visible from the outside

  being only that given by the outline of the edge of the em-

  comb, which then determines the apparent thickness of said

  sole The latter then appears thin and therefore light.

  In men's shoes as in ladies' shoes, the sole can therefore, thanks to the invention, give

  the whole an essentially slender appearance Especially when

  that they are lady shoes, with higher heels, the

  edge of the upper can be cut either so that it does not overlap

  see that the upper part of the edge of the sole, either cover the surface of this edge to the middle, or cover it again near its lower edge. In the latter case, in a lady's shoe, the leather of the upper can be extended very low.

  According to a preferred embodiment of the invention

  tion, it is expected that, in the border area of the empei-

  gene, the external face of the latter is connected,

  only without transition, perpendicular to the surface

  of the sole We can thus, for all the processes

  known manufacturing dice, whether a single shoe

  block or prefabricated and assembled soles, get elegant shapes, since the usual sole rim

  so far, which covered the outer face of the empei-

  gene, is deleted Surprisingly, it turned out in particular that on condition of cutting the vamp in a sufficiently precise way, one can, even in this type of confection, mold on the shoe a sole in direct adaptation, said sole being for example of polyurethane foam, the cutting edge of the upper determining alone, as provided for by the invention, the apparent thickness

of the sole.

  In a shoe with an added sole, the connection between the upper and the sole according to the invention can be

  achieved in different ways, while ensuring

  perfect rence So for example, if the material of the empei-

  gene, not worked, has a rough inner face, the necessary attachment will be carried out with the material of the sole. According to a development of the invention, the edge of the vamp, in the overlap zone, can be

  treated to make it adherent, for example by scratching.

  On the other hand, no quality of adhesion is necessary on the external face of the vamp. On the contrary, it becomes possible to prepare on the external face of materials with multiple layers, arranged at will, while, in the

  known shoes, grip problems occur

  know, for example, in the case of the use of polyurethane foam, when the material used for the upper

  did not adhere well to polyurethane Gold, the elimination of overflow

  the sole on the outside of the edge of the vamp does not reduce the grip between the vamp and the sole. According to another preferred embodiment of the invention, it is further provided not to penetrate the edge of a possible insole, sewn by

  example, that over a short length in the overlap area

  between the upper and the sole This insole

  can then be assembled with the upper by one or more

several lines of bites.

  In another embodiment of the invention,

  it is expected that in the area of overlap between the footprint

  gene and sole, the edge of said upper has openings This allows, in the case of an appropriate chromatic harmonization between the materials forming the sole

  and the upper, to obtain additional aesthetic effects

  silencing, by making visible, for example, the sole material through the openings made in the upper, in the form of a line of dots The configuration of these

  openings can be chosen based on strict criteria-

  aesthetic, by simply ensuring that the solidi-

  The connection between the vamp and the sole is not compromised. According to a variant of the invention, provision is made for the cutting edge of the upper to have a non-rectilinear appearance. Again, it is possible to take account of the aesthetic shape of the visible part of the shoe, for example by giving the cutting edge a wavy or sawtooth configuration This is all the easier

  that, thanks to the method of manufacturing the shoe, the tran-

  The upper part of the upper is also embedded in the material.

  through the sole where it is firmly attached.

  According to an appropriate embodiment of the invention, it is further provided that the sole can be

  consisting of two layers of elastomers having properties

  tees and / or different structures It is then possible to provide, for the upper layer in contact with the

  foot, materials whose properties are granted special

  cially for this use, while the lower layer is formed of a material having, for example, adequate qualities of resistance to wear and skid, without even having to worry about choosing for this purpose materials of

  same color Indeed, the color, which is part of the ele

  aesthetics of the shoe, may be different for

each of the two layers.

  In a shoe according to the invention, comprising an attached molded sole, the latter is glued to the inner border area of the upper, on the edge of the latter, as well as with an inner sole, which can optionally be sewn. turned out that this

  a link that is both simple and s Ore presents new possibilities

  skills for the aesthetics of the shoe.

  To better understand the object of the invention,

  we will describe it below, as a purely illus-

  tratif and not limiting, several embodiments represent

shown in the accompanying drawing.

  In this drawing: FIG. 1 is a side view of a shoe with

molded insole.

  Figure 2 is a side view of another

analog shoe.

  Figure 3 is a sectional view of a mode of

  realization with a sole with single layer.

  Figure 4 is a sectional view of a shoe

  with a two-layer sole.

  Figure 5 is a sectional view of another

  embodiment with a two-layer sole.

  FIGS. 6 and 7 respectively represent partial views of embodiments of which the sections

  of the upper have a varied configuration.

  FIG. 8 is an exploded view in cross section

  versal of an embodiment with added sole.

  FIG. 9 represents a lady's shoe according to the invention. In the shoe shown in lateral view in FIG. 1, the upper 1 covers by its border 2 part of the thickness of a sole 3 made of polyurethane foam

  molded directly onto the shoe The sole material

  the covers the edge of the vamp 2 only on its inter face

  do as well as as will be explained in more detail by the

  continued, with reference to FIG. 3, on its edge 4 The thickness

  apparent thickness of sole 3 is therefore not identical to its actual thickness, but is determined exclusively according to

  the limit of section 4 of the vamp 1.

  FIG. 2 represents a shoe whose sole-

  3 has a configuration different from that of FIG. 1.

  However, the difference in pace should also be observed

  of a puncture 10 (FIG. 3) by which an insole

  re 5 is assembled with the upper 1.

  As seen in Figure 3, the material that constitutes the sole covers the upper only on its inner edge 2 and on its edge 4 In a more appropriate manner, the inner sole 5 linked by the stitching to the upper has a dimension such that only a small part penetrates into the overlap area of the upper

and the sole.

  FIG. 4, illustrates in a sectional view a mode of reaction

  lization which corresponds substantially to that of Figure 3, with the difference that the sole is two layers of different materials During manufacture, we first assembled with the upper a first layer 3 'of a material

  whose properties correspond, for example, to the necessary

  to provide a good base for the foot The thickness of this

  the layer is such that the edge of the edge 4 slightly protrudes

  The surface 6 of said first layer opposite the second layer When this second 3 "step layer, corresponding in its properties to the necessities of walking, is applied to the first layer, the remainder of the edge of the vamp and the tranche 4 are related to this

second layer.

  Figure 5 also shows an embodiment

  tion with two-layer sole The first layer 3 ′ is substantially similar to that of FIG. 3, while the lower layer 3 ″ remains relatively thin In principle, when the sole has two layers, these can have different colors Thus for example, the lower layer 3 ″ may be beige, the upper layer 3 ′ having another shade. These different colors are visible provided that the edge 4 of the upper is partially or completely included in

  the upper zone of the upper layer 3 '.

  The exemplary embodiments illustrated by sections in FIGS. 3 to 5 have a configuration such that the outer surface of the upper, in the region of the edge 2 of

  the latter, ie substantially perpendicular to the sur-

  walking face of the sole and connects practically without transition to the outer surface thereof Thanks to this arrangement, a shoe is obtained which gives the foot a thin and elegant appearance, thereby making it possible to make the most varied types of shoes, such as for example sports, tennis, fashion and / or leisure shoes

  sports for men, women and children.

  Figures 6 and 7 illustrate respectively, by

  partial views, other arrangement possibilities

  put by the construction according to the invention In the mode of

  embodiment according to FIG. 6, the edge 2 of the upper has

  te, in the overlap area, stamped openings 9 through which, at the time of assembly, the sole material can spring out, allowing a decorative element to be applied in the form of a line of dots The pattern of the perforations is arbitrary, while the distance separating these perforations from one another depends essentially on the solidity required of the connection between the vamp and the sole. In the example of execution according to figure i, the

  smooth edge of wafer 4 has been replaced by a wavy line

4 'strip.

  FIG. 8 is an exploded sectional view showing on the one hand the upper 1, assembled with the insole by a stitching 10, on the other hand a prefabricated sole 11 At the time of manufacture of the shoe, the latter is connected to the vamp 1 and the insole 5 by

a known process.

  Finally, FIG. 9 illustrates a lady's shoe according to the invention Note the upper 1, the sole 3, the edge of the upper 2, its edge 4 and the stitching 10 The sole 3 has a relatively high heel 12 detail aims to show that the invention applies to types

of the most diverse shoes.

  It is understood that the embodiments described above are in no way limiting and may give rise to any desirable modifications without going out

for this the scope of the invention.

Claims (9)

  1 Shoe that can be used as a shoe   leisure or sports, characterized by the fact that the   melle (3) is connected to the vamp (1) only by a border zone (2) of the internal face thereof and by the edge (4) of said zone, which partially covers the edge (8) of the sole.   2 Shoe according to claim 1, character-   laughed at by the fact that the external face of the upper, in its border area (2), is connected, in a direction substantially perpendicular to the step face (7) of the sole (3), practically without transition with the edge of the sole (8).   3 Shoe according to one of claims 1 and 2,   with sole assembled by direct molding, characterized in that the edge of the upper (2) has, in the zone of overlap with the material of the sole, a   surface structure suitable for adhesion.   4 Shoe according to claim 3, character-   sed by the fact that the border area (2) of the upper is, in the area of overlap with the sole, treated   so as to facilitate adhesion, for example by scratching gnage.   Shoe according to one of claims 3 and   4, characterized by a polyurethane foam sole.   6 Shoe according to one of claims 3 to   , characterized in that the border area of an inner sole (5) assembled with the upper (1) for example by a line of stitching, penetrates only slightly into the overlap area between the upper and sole.   7 Shoe according to one of claims 3 to 6,   characterized in that the border zone (2) of the upper has, in the overlap zone between   upper and sole, openings (9).   8 Shoe according to one of claims 3 to   7, characterized in that the cutting edge (4 ') of   the border area (2) of the upper has a sharp outline mant a drawing.   -5 9 Shoe according to one of claims 1 and   2 comprising an attached molded sole, characterized by   the fact that the sole (3) consists of two layers of material   materials with different properties and / or structures annuities.   10 Shoe according to one of claims 1 and   2, comprising an attached molded sole, characterized by   the fact that said sole is assembled by gluing in re-   covering the edge (2) of the inner face of the vamp (1), the edge (4) of the latter and, where appropriate,   an insole, for example a sewn sole.