JP4463585B2 - Shoes with improved breathability - Google Patents

Description

  The present invention relates to athletic shoes and other shoes with improved breathability.

A number of shoes with improved breathability have been proposed. For example, JP-A-9-266801 and JP-A-2003-164302 describe an athletic shoe having a structure in which a pump action is generated in response to walking, thereby taking in outside air and ventilating the inside of the shoe.
Japanese Patent Laid-Open No. 9-266801 discloses that a pump member having an air pump chamber in which a large number of elastic pillars are planted is attached to the ground contact surface of the bottom forefoot portion, and an air inlet / outlet portion is provided in the bottom arch portion. An air passage that communicates an air inlet / outlet with the air pump chamber is provided, and a distribution passage provided on an inner surface of the bottom bottom forefoot from the pump chamber through a bottom through hole is provided in the bottom bottom forefoot, Describes a ventilated shoe having an insole with a plurality of vent holes on the top.
Japanese Patent Laid-Open No. 2003-164302 has a recess provided on the inner surface side of a sole sole portion made of an elastic material, and the recess is closed by an insole made of an elastic material and provided with a large number of communication holes. The space is provided with an air passage that communicates with the arch portion of the ventilation space, and a vent hole that communicates the air passage with the outside air is provided at the bottom of the concave portion of the arch portion, and the air passage is substantially the same as the depth of the concave portion. A shoe formed by integrally standing a plurality of staggered ribs on the bottom of the recess is described.

JP-A-9-266801 JP 2003-164302 A

The shoe ventilation structure disclosed in Patent Documents 1 and 2 has substantially the same function, and as the user walks, a plurality of elastic bodies integrally formed on the bottom surface of the air pump room or the bottom surface of the bottom of the air pump provided at the stepping part. The shape of the pillars or ribs is repeatedly deformed, and outside air is sucked into the pump chamber during restoration, and then the taken-in air is inserted into the shoe through a plurality of openings formed in the insole during compression. Being ventilated.
However, there is a problem that ventilation is not sufficient if only a pump chamber for sucking outside air is provided by using elasticity as described in Patent Documents 1 and 2.

The present invention has been developed to solve the above-described problems, and a space for generating a pumping action for promoting air ventilation is provided on the bottom side of the ventilation chamber in a shoe sole portion corresponding to a foot stepping portion. By providing it in the shoe sole, it achieves a much better ventilation effect than before.
That is, the present invention provides an outsole (4) bottom (1) is superimposed together in an elastic over at least the forefoot side trampling site and arch upward surface of the middle sole (1) having elasticity A concave portion (2) having a substantially constant depth over the portion is provided. The concave portion (2) includes a plurality of projections (b) on the lower surface side and a plurality of through holes ( between the projections (b) to the upper surface ( wherein a recess (wherein the bottom surface of 2) projections (b) the de surrounded by aeration chamber (d) by blocking by fitting the separate sheets (3) having elasticity example Bei the a), the A vent hole (e) communicating from the grounding surface to the vent chamber (d ) is provided in the arch portion of the insole (1), and between the main bottom (4) and the insole (1) , only setting the space portion communicating with the vent chamber (d) the (c) between the recess (2) and the ground plane, Sessu the space (c) The thickness of the bottom (4) by forming thinner than the thickness around it, to solve the conventional problems.
Preferably, the vent hole (e) is blocked with a waterproof breathable membrane and / or mesh.

According to this configuration, a space portion that communicates with the ventilation chamber is provided in the forefoot stepping portion, and the thickness of the shoe sole under the space portion is reduced. Since the pumping action of entering and exiting the ventilation chamber is obtained, the ventilation efficiency is improved by promoting the movement of air taken into the ventilation chamber from the vent hole in the arch.
In addition, according to this configuration, since most of the structure that generates a ventilation action is provided on the seat side, most of the ventilation structure that is required to be provided on the sole or insole for each type of shoe is provided on the seat side. As a result, the design and manufacture of the shoe sole is simplified and a profit is obtained.

The shoe sole of the present invention is generally composed of a separate elastic material sole having each function and an insole integrated therewith. And the recessed part for forming the ventilation chamber which is also a pump chamber is formed in the upper surface side of an insole.
Preferably, the space is formed on the bottom surface side of the insole and communicates with the recess through a passage. This promotes the original ventilation effect. Preferably, the thickness of the outsole in contact with the space is formed thinner than the surrounding wall thickness, so that this portion can bend and stretch greatly as walking, and ventilation efficiency can be further improved.
In addition, the ventilation holes for taking in outside air are waterproof in rainy weather, etc., so that they are sealed with a waterproof and breathable membrane, and the metal mesh on the ground surface side so that the ventilation holes are not blocked with pebbles etc. It is preferable to provide a mesh.

Hereinafter, the present invention will be described in detail with respect to athletic shoes with reference to the drawings. In the figure, the upper part is omitted.
The shoe sole of the present invention has a monolithic structure of a sole 4 (also referred to as an outsole or an outsole) and an insole 1 (also referred to as a midsole) on the ground contact surface side, which is generally made of a known material.
As shown in FIG. 1, a concave portion 2 that is hollowed out to a substantially constant depth over the front foot side stepping portion and the arch portion is provided on the upper surface side where the sole of the midsole 1 contacts.

As shown in FIGS. 1 and 6, the recess 2 is fitted with an elastic sheet 3 having a thickness and an outer shape to fill the recess, and the periphery is joined to the peripheral wall of the recess 2. As shown in FIGS. 2 to 4, columnar protrusions b are provided on the entire back surface of the sheet 3 at substantially constant intervals, and a ventilation chamber d is formed between the protrusions b.
A part of the arch portion of the seat 3 and a part of the stepped portion (the toe base) are provided with a number of small through holes a penetrating from between the protrusions b to the upper surface of the seat, and the ventilation chamber d is formed in the foot portion of the shoe Communicate with space. The protrusion b is repeatedly compressed and restored as the shoe wearer walks, and causes the air to flow by the pumping action by the expansion and contraction of the ventilation chamber d. Since the through hole a is at a position where foot pressure is not applied, air is easily pushed into the inner chamber of the shoe.

As shown in FIG. 1, the ventilation promotion part 5 is provided in at least one place (two places in the figure) of the arch part. The structure of the ventilation promotion part 5 is shown by FIGS. 6-7 which show the AA 'cross section of FIG. 5 (a) which shows the side surface of a shoe sole, and FIG.5 (b) which shows a bottom face. FIG. 7 is a partially enlarged view of FIG. The ventilation promoting portion 5 has a space portion c formed by hollowing out a part of the insole 1 at a joint portion between the main bottom 4 and the insole 1 and a hole 6 for communicating the space portion with the ventilation chamber d. The upper surface of the bottom 4 that forms the bottom of the space c may be stealed in order to improve the deformability of this portion of the bottom 4.
With this structure, the bottom 4 is greatly deformed from the state shown in FIG. 7 (a) to the state shown in FIG. 7 (b) by stepping with the foot in the ventilation promoting portion 5, so that the space portion c is reduced and compressed air is compressed. Is pushed into the ventilation chamber d through the hole 6 to further increase the air pressure rising from the compression of the ventilation chamber d, so that the air in the ventilation chamber d is strongly pushed out from the through hole a to the sole side. . When the foot pressure is removed, the bottom 4 is restored, the space c is expanded, and air is sucked.

Referring to FIG. 8 which is a sectional view taken along the line BB ′ of FIGS. 5A and 5B, an air intake 7 is formed at the arch portion. The air intake portion 7 is provided with a vent hole e communicating with the vent chamber d from the ground surface. The size of the vent hole e and the number and diameter of the through holes a are set in an appropriate balance so as to optimize the ventilation. The ventilation hole e is integrally provided with a mesh on the ground side to prevent pebbles and sand. A breathable and waterproof film f is further provided inside the vent hole e.
Thereby, air is taken in from the outside according to the expansion and contraction of the ventilation chamber d, and is taken into the ventilation chamber d.

(Operation)
In use, when the wearer walks, the columnar protrusions b on the back surface of the seat 3 are elastically crushed at the stepped portion at the time of landing, and the ventilation chamber d in that portion shrinks to compress the air present there. As a result, air is pushed out into the inner chamber of the shoe, that is, the sole side, through a part of the arch portion of the seat 3 and the through hole a in the toe base of the stepping portion. Since the through hole a is at a position where foot pressure is not applied, air is easily pushed out into the inner chamber of the shoe.
When the foot is lifted, the projection b of the seat 3 is elastically restored and the ventilation chamber d is expanded and restored to its original shape, so that the outside air is sucked from the ventilation hole e of the air intake portion 7 provided in the arch portion. It is captured.
Further, the bottom 4 is greatly deformed from the state shown in FIG. 7 (a) to the state shown in FIG. 7 (b) when the foot is stepped on at the ventilation promoting portion 5, so that the space portion c is reduced and the compressed air is perforated. 6, the air pressure rising from the compression of the ventilation chamber d is further increased, and the air in the ventilation chamber d is strongly pushed out from the through hole a to the sole side. When the foot pressure is removed, the bottom 4 is restored, the space c is expanded, and air is sucked.

  The present invention can be applied to men's and women's shoes, commuting shoes, sports shoes, sports shoes, and the like.

1 is a plan view of a ventilated shoe sole according to an embodiment of the present invention. It is a top view of the sheet | seat of the Example. It is a bottom view of a sheet. It is a fragmentary sectional view of a sheet. The appearance of the bottom is shown, (a) is a side view, (b) is a bottom view. It is A-A 'sectional drawing of FIG. 6 is a partially enlarged cross-sectional view of FIG. 6, (a) shows the shape of the shoe sole when not stepped on, and (b) shows the air moving state when stepped on. FIG. 6 is a B-B ′ sectional view of FIG. 5.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Middle bottom 2 Recessed part 3 Sheet 4 Main bottom 5 Ventilation promotion part 6 Hole 7 Air intake part a Through-hole b Columnar protrusion c Space part d Venting chamber e Vent hole f Breathable and waterproof membrane g Mesh

Claims (2)

An elastic insole (1) is integrally superposed on the elastic bottom (4), and at a substantially constant depth over at least the forefoot stepping part and the arch part on the upper surface side of the insole (1) . the provided recesses (2), wherein the recess (2), the elasticity example Bei a large number of through-holes (a) leading to the upper surface from between and the protrusion includes a plurality of protrusions (b) on the lower surface side (b) By fitting and closing the separate sheet (3) , a vent chamber (d) surrounded by the bottom surface of the recess (2) and the protrusion (b) is formed, and the arch of the insole (1) is formed. A vent hole (e) communicating with the vent chamber (d) from the grounding surface is provided at the site, and the recess (2) is connected between the main bottom (4) and the midsole (1) at the stepping site. only setting the space portion communicating with the vent chamber (d) the (c) between the ground and the bottom in contact with the space portion (c) (4) Thickness was formed to be thinner than the thickness of around it, shoes. It said vent holes (e) the footwear according to claim 1, which is closed by a waterproof breathable membrane and / or mesh.

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