FR2787683A1 - Shoe comfort padding is made from compound material plate consisting of beehive structure and can have fungicide properties or specific color - Google Patents

Abstract

Padding (4) is made from compound material plate (1) and consists of beehive structure with membrane (2). On side of membrane are open hexagonal cavities (3) with depth of between 1 and 4 mm and sides of length between 2 and 4 mm. Compound can have fungicide and bactericidal properties and can be of specific color and odor.

Description

COMFORT CUSHION FOR SHOE

  The present invention relates, in the field of footwear, to a comfort cushion, which cushion, made of suitable material, is capable of fitting into any type of shoe, that is to say city shoes, sports shoes, safety shoes, etc. This cushion is made from a thermoplastic material whose mechanical properties are such that they combine flexibility, spring, great elasticity in elongation, stretching and crushing, solidity, durability and machinability as well as the intrinsic properties which allow good attachment to any support such as for example a cellulose support in the case of use in combination with a first assembly. In addition, this material may advantageously have properties of the fungicidal, bactericidal kind or even benefit from an adequate coloring as well as a particular odor chosen according to its destination. This comfort cushion consists of a honeycomb-like structure which includes a membrane, one face of which has open hexagonal cells, which cells have a depth of the order of 1 to 4 mm and

  sides with a length of 2 to 4 mm.

  Still according to the invention, the other face of the membrane may include protrusions of the type protuberances in the form of spherical caps, the diameter of which is for example of the order of 4 to 5 mm, which caps are

arranged side by side.

  The comfort cushion according to the invention can consist of a cut out of a large plate produced by molding, which plate can also be produced by overmolding on a cellulose or other support, in which case said cushion can extend over a surface which corresponds to

  the entire contact surface of the foot in the shoe.

  Still according to the invention, the cushion can also consist of a molded part with the desired shape in order to be glued and / or studded in the case

a heel.

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  The cushion according to the invention can be made directly by overmolding in an orifice provided in the front and / or rear part of a

first assembly.

  Still according to the invention, in the case of a cushion produced by overmolding on a first assembly, the edges of the orifice of this first assembly preferably include anchoring holes in said cushion, which holes, a diameter of the order of 2 mm, are spaced at least

minus 5 mm.

  Also in this particular case of a first assembly, the thickness of the cushion decreases on its edges in order to receive the flaps of the rod of the

  shoe during assembly, avoiding the formation of an additional thickness.

  Still in this case of a first assembly, the cushion is distributed on either side of the first with approximately two thirds of its thickness

  located under the lower surface of said first.

  According to another arrangement of the invention, still in the case of a first assembly, the cushion may include air circulation holes

  opening into the honeycomb cells.

  In the case of a first assembly comprising, for example, two cushions, one located at the front, the other located at the heel, provision may also be made to simultaneously overmold an arch support, which first comprising at the level of this support, at least one hole

  anchor for the material constituting said support.

  The invention also relates, in general, to shoes provided with a first fitting with at least one cushion or else a first or heel piece of cleanliness also provided with a cushion and, more particularly, shoes provided with a cushion as defined above, capable of forming a heel piece, nailed directly or

  still glued to a classic assembly premiere.

  The invention will be further detailed with the aid of the following description and

  attached drawings, given for information only, and in which: - Figure 1 shows a molded plate, or molded on a support of suitable material, from which comfort cushions can be cut according to the invention;

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  - Figure 2 shows a side view of the honeycomb cells, a molded heel or as obtained by cutting the plate shown in Figure 1; - Figure 3 shows a heel of cleanliness on which is overmolded or glued a cushion of the type of that shown in Figure 2; - Figure 4 shows a first assembly provided with an orifice at its front part, which orifice is filled with an overmolded cushion; - Figure 5 is a section on 5- 5 of Figure 4; Figure 6 is a top view of the first mounting shown in Figure 4, which first has at its heel, a cushion molding; - Figure 7 shows a first assembly, seen from below, with two holes: one at the front, the other at the back and, in each of these holes, a molded cushion with in addition between the two, placed on the other side, also a molded arch support;

  - Figure 8 shows a top view of Figure 7.

  FIG. 1 shows a large plate 1, obtained by molding from a thermoplastic material and in particular from a compound which has an attractive capacity for energy restitution and absorption, taking into account its use also both at the forefoot and at the heel. This plate 1 has a honeycomb structure. It comprises a membrane 2 and cells 3 of hexagonal shape, the depth of which is of the order of 1 to 4 mm and the sides of which have a length of the order of 2 to

4 mm.

  The compound used for the preparation of this plate is preferably treated with a fungicidal, bactericidal product and it can also benefit

  of additions and in particular of perfume such as chlorophyll for example.

  Depending on the destination, it can advantageously be colored by adopting

  a color which may for example be suitable for the perfume.

  The plate 1 can also be overmolded on a suitable support such as cellulose or the like, that is to say a material

  likely to constitute a first assembly or cleanliness.

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  From this plate 1, whether in simple form or in the form of a biomaterial complex, it is possible to make cuts of various shapes, as shown in FIG. 1. These cuts form comfort cushions 4 and can be 'extend over the entire surface of the shoe or simply serve for example a heel, that is to say be glued and / or nailed to a first cleanliness in a shoe. This cushion 4 used

  as a heel counter can also be used as a nail cover.

  FIG. 2 shows a cushion 4 in the shape of a heel cup, as cut from the plate 1. Note that this cushion 4 can also be obtained directly by molding in a suitable mold with all the characteristics of the detailed honeycomb structure. previously in

link with figure 1.

  The cushion 4 in the shape of a heel piece, thus obtained can be glued to a first mounting at the heel or be nailed. If it is nailed, the nails can be housed in the cells 3 and in this case, the cushion 4 acts as a nail cover. FIG. 3 shows another possible embodiment of the cushion in a honeycomb structure as detailed in FIG. 1. The cushion 4 in FIG. 3 is molded directly onto a heel pad 5 and in particular on the

  underside of this heel.

  Figure 4 shows a first assembly seen from below. This first assembly 6 comprises in its front part, an orifice 7 filled with a cushion 4, the structure of which is in honeycomb as detailed previously in connection with FIG. 1. This cushion 4 is produced directly by overmolding on the first of mounting. Holes 11 arranged all around the orifice 7 make it possible to improve the anchoring of the cushion 4 on the material of the

  first assembly 6, which material is a cellulose type material.

  The anchor holes 11 have a diameter of the order of 1 to 2 mm for example and they are spaced at least 5 mm. Their distance from

  rim 12 of the orifice 7 is of the same order as their diameter.

  Figure 5 shows a section along 5-5 of the first assembly shown in Figure 4. This section shows the orifice provided in the first assembly 6 and the molded cushion in said orifice. The holes 11 allow a real mechanical connection of the cushion 4 to be made on the

first 6.

  As shown in this FIG. 5, the cushion 4 has an upper membrane 2 and under this membrane, the cells 3 in the form of a honeycomb. The cushion 4 extends mainly under the first. It can extend projecting under the lower surface 19 of this first over a height which

  can be of the order of two thirds of its own thickness.

  In addition, the thickness of the cushion 4 can decrease, from its central part to its edges, to facilitate the mounting of the shoe and in particular allow good positioning of the flaps of the upper, not shown. The cells 3 can promote air circulation during their crushing. To this end, as shown in FIGS. 4 and 5, the cushion 4 may include in the cells 3, holes 13 which allow this circulation of

  the air; this gives a certain ventilation of the shoe.

  FIG. 6 represents the top of the first assembly illustrated in FIG. 4. We find the cushion 4 molded in the front part of the first assembly 6. The upper surface of the cushion 4 may include protrusions in the form of protuberances 17 constituted for example portions of spheres or spherical caps arranged side by side, in staggered rows for example. These protrusions 17 have for example a diameter of the order of 4 to mm; they also appear in FIG. 5, above the membrane 2, at

  the opposite of the cells 5 relative to said membrane.

  Still in FIG. 6, it can be seen that the rear part or heel of the first assembly 6 also includes a cushion 4 which corresponds for example to the cushion of FIG. 2, arranged by overmolding on the upper face of said first assembly 6. This cushion 4 has all the features of the detailed cushion in connection with Figure 1 and Figure 2, and it allows during assembly, to accommodate the heads of the nails and to act as a nail cover. FIG. 7 shows a first assembly 6 ′ which comprises two cushions 4. This first assembly comprises a front cushion 4F disposed

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  in an orifice arranged in its front part as in the case of FIG. 4, and a rear cushion 4R arranged in an orifice arranged at the heel. On this underside of the first mounting 6 'as shown in Figure 7, we note the cells 3 of the honeycomb-shaped structure. These front and rear cushions are obtained by overmolding as in the case of FIG. 4 and the first 6 ′ also includes anchoring holes

  11 which are arranged all around the orifices filled by said cushions.

  It is also possible during the molding operation of the cushions, to simultaneously realize between these two cushions, an arch support. This arch support 21 is preferably anchored to the

  first assembly by means of holes 22.

  Figure 8 shows, top view, the first detailed mounting

previously figure 7.

  We find the front cushion 4F, the rear cushion 4R and, between the two, the arch support 21. The upper surface of the front and rear cushions may include, as detailed in FIG. 6, protuberances 17. These protuberances, as in the case in FIG. 6, can have a diameter of the order of 4 to 5 mm, projecting from the cushions and in particular from the

membrane 2.

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Claims (10)

- CLAIMS -   1.- Comfort cushion for shoes made from a material of the compound type, which has an interesting capacity in terms of energy restitution and absorption, which compound can also have fungicidal, bactericidal properties with coloring and a particular odor, which cushion consists of a honeycomb structure comprising a membrane (2) and, on one side of said membrane, open hexagonal cells (3), the depth of which is of the order of 1 to 4   mm and whose sides have a length of the order of 2 to 4 mm.   2.- comfort cushion for shoe according to claim 1, characterized in that the other face of the honeycomb structure has asperities of the protuberance type (17) in the form of spherical caps whose diameter is in the order of 4 to 5 mm, which protrusions are arranged   side by side in staggered rows for example.   3.- Comfort cushion for shoe according to any one of   Claims 1 or 2, characterized in that it is obtained by cutting from a   large plate (1), which plate is molded or overmolded   on an appropriate support of the cellulose or other type.   4.- comfort cushion according to any one of claims 1 or 2,   characterized in that it is made directly by molding to the desired shape, heel-piece or the like, with a view to being glued and / or nailed to a first assembly and / or cleanliness.   5. Comfort cushion according to any one of claims 1 or 2,   characterized in that it is made directly by overmolding in a   orifice fitted at the front and / or rear of a first assembly (6, 6 ').   6.- comfort cushion according to claim 5, characterized in that the edges of the orifice (7) receiving said cushion include holes (11) which allow the mechanical anchoring of said cushion, which holes, with a diameter of on the order of 1 to 2 mm, are spaced at least 5 mm apart and are located at   distance from said orifice which corresponds substantially to their diameter.   7.- comfort cushion according to any one of claims 5 or 6,   characterized in that it extends under the lower surface of the first of   mounting (6, 6 '), on about two thirds of its own thickness. 8 2787683   8. Comfort cushion according to any one of claims 5 to 7,   characterized in that its thickness decreases from its central part towards its edges so as to receive the flaps of the upper of the shoe during assembly.   9. Comfort cushion according to any one of claims 5 to 8,   characterized in that it has ventilation holes (13) which open into the cells (3), making it possible to provide ventilation at the level of the first mounting.   10.- First assembly comprising at least one comfort cushion   according to any one of claims 5 to 9, characterized in that it   comprises, between cushions (4) overmolded at its front part and at its part   rear, arch support (21) molded simultaneously.