ES1231025U - Seasonal template with forced ventilation for footwear (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Removable seasonal template for forced ventilation for footwear usable as a conventional insole, formed by an elastic-spongy core sealed on all its surface, except in the areas enabled for air flow (5) - (6) - (7). (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

Seasonal template of forced ventilation for footwear.

Object of the invention

The present invention relates to an insole or midsole for the interior of the footwear, removable and interchangeable in the manner of those commonly used to be introduced therein in order to make it more comfortable and comfortable, said midsole or insole being able to form structural part of the footwear itself or as a complement to it.

In most known shoes, the moisture produced by the perspiration generated by the sole of the foot does not find easy dissipation. The aeration of the internal upper part of the shoe can be resolved by using more or less porous and breathable materials, however, the difficulties increase when it comes to the plantar area, given the tightness of the surfaces in contact and the need to waterproof the sole.

In this context, one of the biggest disadvantages of conventional footwear, resides in the limited of its internal ventilation where it is needed most, (the forefoot), which causes not a few problems related to excess perspiration and its consequences, problems These are exacerbated with the arrival of the hot season.

The object of the present invention is to provide a removable midsole structure that allows to generate effective ventilation of the sole of the foot adapting its anatomy. For this, the model detailed below minimizes some of the aforementioned drawbacks, derived from the deficient ventilation of that part of the footwear, providing in each step a forced flow of air in the area of more difficult ventilation such as interdigital and surroundings, taking advantage of the foot as a compressor, creating at the same time a cushioning means of the footprint. Its adaptation to seasonality (summer-winter) is obtained by exchanging the aforementioned midsole or insole on a different foot, and reversing its position so that in the hot season almost all of the insufflated air comes from the outside, entering the footwear through the less adjusted part of it, (ankle and surroundings), and expelling it by the part of the instep after aerating the plantar area of the forefoot. On the other hand, in the "winter" position most of the circulating air inside the shoe comes from inside, thanks to the fact that the hole area of this winter face is slightly forward with respect to the opposite of the summer face , so that the plantar obturation of the footprint is imperfect thus facilitating the bi-directional flow of the inner air of the footwear, minimizing the entrance of cold air from the outside and keeping the foot ventilated but tempered.

Sector of the technique

The sector of the technique where the present invention is framed is that of the footwear industry and its derivatives.

State of the art

Various types of footwear and insoles have been developed, with a variety of devices and designs such as those contemplated by the patents listed below, aimed at facilitating transpiration of the foot. However, the apparent complexity or costly realization of some and partial effectiveness of others suggest that they are not the definitive solution.

ES 2580805 T3

ES 2519569 T3

ES 2190191 T3

ES 2537262 A1

ES 0259016

ES 2106466 T3

ES 2150256

WO-2005/00

Description of the invention

The innovation referred to by the present invention is that of an insole or midsole for accommodating in the internal upper part of the sole of the footwear, said midsole being susceptible to being exchanged at different feet according to the climatic seasonality, or to be introduced in any type of footwear as a conventional insole to improve their comfort, the shape and size of which is adequate to adjust to the bottom of the footwear in question. It is designed to take advantage of the movement of the foot when walking, compressing the air lodged inside it and expelling it through the required areas. It constitutes a spongy monobody of reticular structure, capable of being impregnated with anti-fungal, perfumed substances, or the like, made of a material with shape memory, (polyurethane foam or similar), of truncated conical longitudinal section with the base in the heel area. It consists of two faces or surfaces more or less ergonomic opposite each other, plus a third in the form of perimeter contour without solution of continuity, which unites them both. These opposite faces are covered by an elastic film, sealant and filler in all its extension, except in certain areas or areas of the forefoot. One of them has an area at the height of the open heel or holes, lacking sealing. Likewise, on the third side or perimeter contour has been applied the same elastic treatment-tapaporos in all its extension. It is appreciated to touch on the two opposite sides less flexibility from the midfoot to the end of the hindfoot.

Description of the drawings

For a better understanding of what is described herein, some illustrative drawings are attached by way of example, without restrictive or limiting character.

Figure 1: Plan view of the summer face (1) showing the two open areas or open holes (5) and (6), as well as the outline that delimits it (3).

Figure 2: View in longitudinal section showing both opposite seasonal faces (1) and (2), the face (3) or perimeter outline, the spongy monobody (4), the free sealing zones (5), (6) and (7), (these can be substituted by holes), and the semi-rigid parts (8).

Figure 3: Plan view of the winter face (2), showing the open semicircular strip or holes free of sealing (7), as well as the outline (3).

Figure 4: View in cross section through the part of the heel, where you can see the two opposite sides (1) and (2), the face or contour (3), the spongy monobody (4), the open area or openings sealing (5), and the semi-rigid parts (8).

Figure 5: This figure shows the operation dynamics of the invention.

Figure 6: View in longitudinal section of the internal structure of the shoe with the housing (9) and the midsole or insole fitted therein.

Description of a preferred embodiment

For the industrial manufacture of the midsole or insole can be used (without prejudice to other methods), the injection molding, blowing, etc., similar to that used to obtain a multitude of objects of foam or polyurethane foam . Once the form and size of the template have been obtained, the entire external surface is sealed with a highly elastic product that guarantees its airtightness, except in the areas enabled for the entry or exit of air.

Fig. 1 shows the most ventilated face of the template (1) suitable for hot weather, presents at the height of the heel an open area or holes (5), free sealing for the air inlet-sealing lodged in the spongy body ( 4). On the forefoot part it shows an open unsealed transverse strip or holes (6), in the form of a colise for the outlet of the air contained inside.

Fig. 2 shows in longitudinal section the frustoconical shape of the template, with its greater thickness (8) in the part of the heel to avoid internal deformities and increase the performance 10 of the insufflated air. The reticular-spongy body (4), the free sealing-suction zone (5), the sealed perimeter surface (3), as well as the thicknesses (8), minimizing the deformation in both are shown in this figure. opposite faces (1) and (2). By the middle part of the forefoot of the face (1) is observed the unsealed part open or of holes (6), outlet-sealing of the pumped air in each step. It also shows the area without open seal or holes (7) slightly advanced with respect to its opposite side (2), whose role is to maintain a flow of air inlet and outlet through the forefoot area in the less hot season. closed circuit mode, with minimal outside air intake.

Fig. 3 represents face (2) for less hot weather. This face (2) shows a free strip of open seal or holes (7), at the level of the forefoot, where the natural movement of the forefoot does not completely seal it. This figure also presents the perimeter contour (3).

Fig. 4 shows a cross section of fig. 1 at the height of the heel, showing in it the perimeter (3), the spongy body (4), and the semirigid thicknesses (8) of both opposite sides (1) and (2), as well as the free sealing part open or with holes (5). Fig. 6 shows the internal housing (9) of the shoe to receive the midsole or insole object of the invention, as well as said already assembled template.

Claims (8)

1. Removable seasonal template for forced ventilation for footwear usable as a conventional insole, formed by an elastic-spongy core sealed on all its surface, except in the areas enabled for air flow (5) - (6) - (7). 2. Removable seasonal template for forced ventilation for footwear according to the previous claim, preferably made of a biodegradable material with an elastic spongy core (4) and a truncated cone longitudinal section, formed by a single body whose shape and dimensions are determined by the type of footwear to which it is coupled, characterized mainly because it is designed so that the sole of the foot is the sole valve element and modulator of the air flow, without any other mechanism intervening. 3. Removable seasonal template for forced ventilation for footwear according to previous claims, characterized in that one of the two opposite faces (1) of the template, has at the height of the heel a free zone of sealing (5), open or openings, for the entrance and sealing of the sucked air. 4. Removable seasonal template for forced ventilation for footwear according to previous claims, characterized in that both opposite faces (1) and (2) of the template, present at the forefoot level open or open sealing zones or holes, (6) ( outlet-sealing) and (7) (flow-reflux) of the air. 5. Removable seasonal template for forced ventilation for footwear according to the previous claims, characterized in that the third face or perimeter contour (3) of said template may have a slightly convex shape throughout its extension. 6. Removable seasonal template for forced ventilation for footwear according to previous claims, characterized in that the two opposite faces (1) and (2) of the aforementioned insole, can have an anatomical profile and be covered with non-slip material. Seasonal removable forced ventilation insole for footwear according to the previous claims, characterized in that both opposite faces (1) and (2) of the described template have semi-rigid parts (8) from the midfoot to the end of the rearfoot. 8. Removable seasonal template for forced ventilation for footwear according to previous claims, characterized in that the porous constitution of the core of the midsole or insole allows it to be impregnated with antifungal, perfumed or similar substances.