JP2022524324A - A system consisting of a shoe insert, and left and right shoe inserts and at least one perfume container. - Google Patents

Abstract

The present invention is a shoe insert comprising a cover layer, a cushioning layer and an absorbent core for receiving a liquid fragrance, wherein the cushioning layer has a recess on its upper side for receiving the absorbent core. The cover layer is placed on top of the buffer layer and the absorbent core to cover them, and the layers are connected to each other and into the cover layer within the area of the absorbent core to supply the liquid fragrance to the absorbent core. With respect to a shoe insert in which a hole-like recess is formed. [Selection diagram] Fig. 1

Description

The present invention relates to a shoe insert and a system consisting of left and right shoe inserts and a perfume container.

A well-known problem in the field of shoe technology is foot odor, which is perceived as unpleasant and subsequently causes an unpleasant odor inside the shoe.

One of the most common causes of foot odor is the secretion of sweat in the area of the foot. Foot odor does not occur directly from the secreted sweat, but when bacteria break down the sweat and produce butyric acid in the process.

The odor in the area of the foot is eventually caused by the release of water from the foot, and the use of non-breathable synthetic shoe material further exacerbates the problem of unpleasant odor. This is due to the fact that the body's moisture emanating from the shoe wearer's foot is not sufficiently dissipated into the environment by the synthetic shoe material and accumulates inside the shoe. In addition, puberty causes increased sweating and thus increased foot odor.

Various solutions for dealing with the problem of foot odor are already known from the prior art. In particular, deodorizing sprays or fragrance-containing sprays that are sprayed directly onto the feet to prevent or cover off unpleasant foot odors are known. The aforementioned sprays have the disadvantage that the spray must be applied to the foot several times a day due to the short duration of action and very limited duration.

Alternatively, prior art has known insoles for use in shoes, in which the perfume is once introduced into the material of the insole during the manufacturing process. In the products available so far, the fragrances used have a very artificial effect and / or, in addition, the fragrance duration is very short and the effect of the scented shoe insoles is short. It has the disadvantages of running out of time and the product being designed as a disposable item.

Based on known prior art, the problem addressed by the present invention is to reduce unpleasant foot odor and in-shoe odor and to sustainably improve shoe climate.

According to the present invention, the problem is a shoe insert, comprising a cover layer, a cushioning layer, and an absorbent core for receiving the liquid fragrance, wherein the cushioning layer has an absorbent core above it. It has a recess to receive, a cover layer is placed on top of the buffer layer and the absorbent core to cover them, the layers are connected to each other and the absorbent core to supply the liquid fragrance to the absorbent core. A hole-like recess is formed in the cover layer in the area of the shoe insert, which is solved.

The design according to the invention has the advantage that the absorbent core for receiving the liquid fragrance can be replenished multiple times through the perforated recesses when the effect of the applied fragrance is diminished. In addition, the proposed design allows the user of the shoe insert described above to scent the shoe insert, if desired in introducing the liquid fragrance that the user prefers. In particular, the user can scent the shoe insert using a brand of perfume or body odor inhibitor that he or she personally prefers.

Liquid fragrances are preferably perfume oils that have the advantage that they have a longer duration of action, in the sense that the fragrances evaporate more slowly. In addition, the perfume oil has a higher viscosity than ordinary liquid perfumes, and thus has the additional advantage that the perfume oil emerges more slowly from the absorbent core and is more reliably encapsulated within the absorbent core.

The liquid fragrance can be sprinkled or supplied to the absorbent core through the perforated recesses of the cover layer, and the fragrance penetrates the absorbent core, i.e. the fabric of the absorbent core, especially the woven fabric, for days or weeks. It can be safely stored or encapsulated in it. Starting from the absorbent core, especially through the pitted recesses, the fragrance is released as a gas phase into the surrounding shoe space, ensuring a pleasant freshness in the shoe space and masking unpleasant odors. .. In this case, the provided arrangement of the overlap between the absorbent core and the cover layer prevents the direct leakage of the liquid fragrance, thus the liquid fragrance is not directly absorbed, for example, by the shoe wearer's socks. ..

The cover layer can completely cover the underlying buffer layer and the absorbent core received therein, and only has a hole recess within the area of the absorbent core located beneath the cover layer. .. In an alternative form, however, the cover layer covers only part of the top surface of the buffer layer, but can also provide at least the surface of the absorbent core.

The connection of the individual layers of the shoe insert, in particular the cover layer and cushioning layer described above, shall be achieved, in particular, by adhering the individual layers together to ensure permanent mechanical connection or adhesion between the layers. Can be done. In particular, it can provide that the absorbent core is adhered within the recesses of the buffer layer. However, the connection of the individual layers and optionally the absorbent core is such that the starting material of the buffer layer in the static liquid state is absorbed in the mold during the injection molding process and the shoe insert during the manufacturing process. Using an alternative method of joining to the core and / or additional layers, followed by curing the material of the buffer layer, creating a mechanical connection of the buffer layer to the other layer and optionally the absorbent core. Can also be realized.

According to a preferred embodiment of the invention, the absorbent core can be formed from a woven fabric as a perfume reservoir. The absorbent core formed from the woven fabric has the advantage that perfume, such as perfume oil, can be stored for a specific period of time. Therefore, the absorbent core forms a kind of reservoir or storage place for liquid fragrances. Due to the design of the absorbent core as a woven fabric, the perfume oil is uniformly received by the absorbent core and distributed throughout the absorbent core, so that the perfume is released slowly and continuously. Moreover, the liquid fragrance is not permanently bound within the absorbent core and can therefore be removed again from the absorbent core by a cleaning process.

The absorbent core has at least two layers, the upper layer is made of woven fabric and can be designed such that a viscous layer is placed beneath it. When the perfume droplets are applied to the upper layer of the absorbent core, the woven fibers of the woven fabric direct the liquid scent into the underlying viscous layer where the scent is preserved.

In one embodiment of the shoe insert according to the invention, a cloth cover is provided, the cloth cover being placed as an additional layer underneath the cushioning layer and optionally providing complete coverage underneath. In this case, the cloth cover described above can also be provided to be inseparably connected, eg, bonded, to the cushioning layer.

The cloth cover facilitates the insertion of the shoe insert into the shoe, and the layer of the shoe insert placed on top of the cloth cover is supported by the cloth cover during use, thus further extending the useful life of the shoe insert according to the invention. It has the advantage of being longer. In one embodiment of the invention, the cloth cover can form the underside of the shoe insert according to the invention.

The cover layer can be formed from a liquid-impermeable and gas-permeable membrane. The membrane thus designed prevents the liquid fragrance from escaping from the absorbent core to the environment, but allows the gaseous fragrance to permeate and add fragrance to the inside of the shoe.

It can also be provided that the pitted recess is designed as a valve device. The valve device allows the supply of liquid fragrance from the environment of the shoe insert to the absorbent core, but can be designed to prevent leakage of the liquid fragrance from the absorbent core.

In a preferred embodiment, it can be provided that the cover layer of the shoe insert is formed from a microfiber cover.

The microfiber cover can absorb moisture, especially sweat secreted by the feet. In addition, the microfiber cover can be provided with antibacterial properties that prevent or reduce the generation of odors in the shoe. In addition, the microfiber cover has thermal control properties, and therefore the microfiber cover further improves the shoe climate.

In one embodiment of the invention it can be provided that the recess in the buffer layer is formed by a circular punched portion above it. The circular punched portion can have a diameter in the range of 1-2 cm, preferably about 1.3 cm, for example.

In a preferred embodiment of the invention, it is provided that the buffer layer is made substantially of ethylene vinyl acetate (EVA). The use of ethylene-vinyl acetate as the substrate for the production of the buffer layer has the advantage that the EVA material provides cushioning and at the same time a restorative effect on the shoe insert. The EVA buffer layer can have a layer thickness in the range of 1 mm to 5 mm, particularly preferably the layer thickness is about 2 mm in the central region of the shoe insert and thinner over the entire circumference in the edge region of the shoe insert. ..

In a particularly preferred embodiment, it can be provided that the layers of the shoe insert are connected by a neoprene adhesive or by a solvent-free spray adhesive system.

According to the present invention, it is possible to provide that the edge portion of the buffer layer is tapered over the entire circumference so as to be thinner than the central portion of the buffer layer. In the context of the present application, the above-mentioned feature of tapering to be thinner is that the thickness of the buffer layer in the edge region of the buffer layer is from the maximum thickness of the buffer layer in the central region of the buffer layer to the minimum in the edge region. It means that it tapers continuously to the thickness. In particular, in the lower and / or upper edge region of the cushioning layer, a convex or concave surface profile can be provided to adapt the shape of the shoe insert to the existing insole.

In a more preferred embodiment, the layers of shoe inserts, absorbent cores, and adhesive bonds according to the invention can be configured so that they are machine washable, especially machine washable at 30 ° C.

The design as a machine washable shoe insert has the advantage that liquid fragrances of different scents can be used consecutively in the same shoe insert, therefore the shoe insert according to the invention is designed as a reusable product. To. The fragrance introduced into the absorbent core can also be completely neutralized or washed away in the washing machine and therefore the shoe insert can be used again. The aforementioned embodiments also have the advantage that the shoe insert can be disinfected and completely cleaned during the cleaning process by adding suitable cleaning additives.

In a particularly preferred embodiment, it can be provided that the dimensions of the absorbent core substantially correspond to the dimensions of the buffer layer recess and that the absorbent core is embedded within the recess.

Due to the fact that the dimensions of the absorbent core are substantially adjusted to the dimensions of the recesses, the user cannot feel the absorbent core in the shoe or in the shoe insert, which further enhances the wearing comfort of the shoe insert. Increase. In addition, because it is embedded in the recess, the absorbent core will not slip or be lost during use. For this purpose, the absorbent core can be embedded in the indentation, especially by adhesive binding. Embedding also prevents the absorbent core from being squeezed out during use of the shoe insert according to the invention, thus ensuring that each fragrance remains encapsulated in the shoe insert according to the invention for as long as possible. Has advantages. Looking at the shoe insert in cross section, the upper side of the absorbent core is preferably coplanar with the upper side of the cushioning layer, so that the pressure exerted by the shoe wearer's foot on the shoe insert according to the invention is the shoe insert. It is evenly distributed over the entire top surface of the shoe, reducing the compressive force locally applied to the absorbent core. The upper side of the absorbent core in the cross section of the shoe insert according to the invention is particularly preferably designed to be slightly recessed with respect to the peripheral surface of the cushioning layer, thus the pressure exerted on the absorbent core by the shoe wearer's foot. , Further reduced or completely prevented.

In a more preferred embodiment of the shoe insert according to the invention, it can be provided that the layer has substantially the shape and dimensions of the left or right shoe insole and is designed as an insole.

The layers of the shoe insert are particularly preferably all having the same shape and surface dimensions, so that the layers can overlap vertically with each other and be permanently connected to each other.

The present invention further comprises a system comprising left and right shoe inserts according to the present invention having the features according to the present invention as described above, and at least one fragrance container for receiving a liquid fragrance, wherein the fragrance container is a shoe insert. With respect to the system, which has a container outlet adapted to the hole recess and is capable of supplying a liquid fragrance to the absorbent core of the shoe insert through the container outlet through the hole recess.

FIG. 3 is a partial cross-sectional perspective view of a first exemplary embodiment of a shoe insert according to the present invention. FIG. 3 is a plan view of an exemplary embodiment of a cushioning layer for a shoe insert according to the present invention. It is sectional drawing of the 2nd Embodiment of the shoe insert by this invention. FIG. 3 is a partial cross-sectional view of a shoe insert according to the present invention, together with a fragrance container.

FIG. 1 illustrates a first exemplary embodiment of a shoe insert according to the invention in a schematic three-dimensional view, with individual layers partially cut out for a better understanding of the selected layer structure. Has been done.

According to FIG. 1, in the first exemplary embodiment of the shoe insert 1 according to the present invention, the cover layer 2 and the cushioning layer 3 as the uppermost layer of the shoe insert 1 are provided, and in the illustrated embodiment, the cushioning layer is provided. It is arranged under 3 as an additional layer and is provided in combination with an additional cloth cover 5 that completely covers the underside 32 thereof. In the illustrated embodiment, the buffer layer 3 has a recess 31 on its upper side 30, in which the absorbent core 4 is housed, and the cover layer 2 is arranged on the buffer layer 3 and the absorbent core 4. Covering them, in FIG. 1, a portion of the cover layer 2 and the buffer layer 3 is cut off for better illustration.

As can be seen from FIG. 1, the recess 31 for receiving the absorbent core 4 is formed by a circular punched portion on the upper side 30 of the buffer layer 3. In the illustrated exemplary embodiment of FIG. 1, layers 2, 3 and 5 are in this case substantially based on the shape and dimensions of the insole of the left shoe, and the shoe insert in the illustrated embodiment is an insole. Designed as. In the illustrated embodiment, the individual layers 2, 3, and 5 overlap each other up and down and are inseparably connected to each other, for example by providing an adhesive bond using neoprene adhesive.

FIG. 2 shows the design of the buffer layer 3 according to the present invention, in which the buffer layer 3 in the illustrated embodiment has a recess 31 in the form of a circular punched portion 33 on the upper side 30 of the buffer layer 3. As can be seen from the comparison of FIGS. 1 and 2, both the position and size of the recess 31 on the surface 30 for receiving the absorbent core 4 can be varied according to the present invention. In particular, the indentation 31, and thus the absorbent core 4, can be placed in the area of the shoe insert 1 where low local pressure is expected during use due to the shape of the shoe wearer's foot arch.

FIG. 3 shows a second exemplary embodiment of the shoe insert 1 according to the present invention, wherein the shoe insert 1 completely covers the cover layer 2 and the cushioning layer 3 as well as the lower 32 of the cushioning layer 3. It comprises an additional layer formed by the cloth cover 5 under 3. As can be seen from the cross-sectional view of FIG. 3, the buffer layer 3 has a recess 31 on the upper side 30 thereof, and the absorbent core 4 is housed therein. In the illustrated exemplary embodiment, the cover layer 2 completely covers the cushioning layer 3, but has a valve device formed by, for example, a hole-like recess 21 in the region of the absorbent core 4, through which the valve device is formed. The absorbent core 4 can be supplied with a liquid fragrance 8 (not shown in FIG. 3). An exemplary embodiment of FIG. 3 of a shoe insert 1 according to the invention has a central region 34 and edge regions 35 and 36, and the cushioning layer 3 of the edge regions 35 and 36 is the shoe insert according to the invention. It is tapered from the maximum thickness in the central region 34 of 1 to the minimum thickness in the peripheral region, and the edges 35 and 36 of the buffer layer 3 are tapered over the entire circumference so as to be thinner than the central portion of the buffer layer 3. It has become.

As can be seen from FIG. 3, the absorbent core 4 substantially has the dimensions of the recess 31 of the buffer layer 3, and the absorbent core 4 is embedded in the recess 31. In the provided embodiments, the absorbent core 4 is designed to be minimally smaller than the dimensions of the recess 31 so that the absorbent core 4 can be adhered to the recess 31 via an adhesive such as neoprene adhesive. Has been done.

FIG. 4 shows a portion of the system according to the invention, including the left and right shoe inserts 1 and the perfume container 7 according to the invention. For clarity, only a partial cross-sectional view of the shoe insert 1 according to the invention combined with the fragrance container 7 is shown in FIG. 4, the shoe insert 1 according to the invention is also again with the cover layer 2 arranged above. , It is designed to have a cushioning layer 3 underneath, and a cloth cover 5 to form an additional layer. The absorbent core 4 for receiving the liquid fragrance 8 is arranged in the recess 31 of the buffer layer 3. FIG. 4 shows the process of supplying the perfume 8 to the absorbent core 4. In this case, the fragrance 8 is stored as a liquid in the fragrance container 7, and is introduced into the absorbent core 4 through the hole-shaped recess 21 of the cover layer 2 via the container outlet 70. The figure shows that a droplet of fragrance 8 is applied to the upper surface of the absorbent core 4. For this purpose, the container outlet 70 is adapted to the shape and dimensions of the hole-shaped recess 21 of the cover layer 2 and thus prevents the unexpected application of the fragrance 8 to the cover layer 2.

Claims (16)

It is a shoe insert (1),
-Cover layer (2) and
-Cushioning layer (3) and
-With an absorbent core (4) for receiving liquid fragrances,
The buffer layer (3) has a recess (31) on its upper side (30) for receiving the absorbent core (4), and the cover layer (2) has the buffer layer (3) and the recess. Placed on top of the absorbent core (4) to cover them, the layers are connected to each other and within the region of the absorbent core (4) to supply the liquid fragrance to the absorbent core (4). A shoe insert in which a hole-shaped recess (21) is formed in the cover layer (2) of the above. The shoe insert according to claim 1, wherein the absorbent core (4) is formed of a woven fabric as a fragrance reservoir. The shoe insert according to claim 1 or 2, wherein the absorbent core (4) has at least two layers, the upper layer is made of a woven fabric, and a viscous layer is arranged under the woven fabric. A third aspect of the present invention, wherein the cloth cover (5) is provided, and the cloth cover (5) is arranged as an additional layer under the cushioning layer (3) and completely covers the lower side (32) thereof. The shoe insert described in either. The shoe insert according to any one of claims 1 to 4, wherein the cover layer (2) is formed of a liquid-impermeable and gas-permeable film. The shoe insert according to any one of claims 1 to 5, wherein the hole-shaped recess is designed as a valve device. The shoe insert according to any one of claims 1 to 6, wherein the cover layer (2) is formed of a microfiber cover. The shoe insert according to any one of claims 1 to 7, wherein the recess (31) is formed by a circular punched portion (33) on the upper side (30) of the buffer layer (3). The shoe insert according to any one of claims 1 to 8, wherein the buffer layer (3) is substantially made of ethylene vinyl acetate (EVA). The shoe insert according to any one of claims 1 to 9, wherein the layers (2, 3, 5) are connected by a neoprene adhesive. Any of claims 1 to 10, wherein the edge portion (35, 36) of the buffer layer (3) is tapered over the entire circumference so as to be thinner than the central portion (34) of the buffer layer (3). The shoe insert described in the crab. The shoe according to any one of claims 1 to 11, wherein the layers (2, 3, 5), the absorbent core (4), and the adhesive bond are designed to be machine washable. insert. The dimensions of the absorbent core (4) substantially correspond to the dimensions of the recess (31) of the buffer layer (3), and the absorbent core (4) is embedded in the recess (31). The shoe insert according to any one of claims 1 to 12. The height dimension of the absorbent core (21) is designed to be smaller than the depth dimension of the recess (31), so that the upper surface of the absorbent core (21) is of the buffer layer (3). The shoe insert according to any one of claims 1 to 13, which is recessed with respect to the upper surface. The shoe insert according to any one of claims 1 to 14, wherein the layers (2, 3, 5) have substantially the shape and dimensions of the left or right shoe insole and are designed as an insole. A system comprising the left and right shoe inserts according to any one of claims 1 to 15 and at least one fragrance container (7), wherein the fragrance container (7) is compatible with the hole-shaped recess (21). It has a container outlet (70) and can supply the liquid fragrance (8) to the absorbent core (4) through the container outlet (70) through the hole-shaped recess (21). system.

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