JPH0116405Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to shoes that are breathable and comfortable to wear.More specifically, the invention relates to shoes that have good breathability and comfort. Fresh air from the outside is constantly sent forward from the heel and discharged into the shoe near the toe area, allowing ventilation within the shoe, and it itself has excellent cushioning and insulation properties. This invention relates to an insole for shoes that can effectively prevent vibrations, shocks, etc. that are easily received when walking from being directly transmitted to the human body.

In order to suppress and prevent stuffiness and sweating, the resulting bad odors, and the occurrence of diseases such as eczema and athlete's foot, various methods have been used to provide ventilation within shoes, and more generally, within footwear. Various things have been devised and proposed, for example, ``sole and
In this footwear comprising at least an insole disposed on the upper surface of the sole and an upper, the sole is composed of a sole front part made of an elastic material and a sole rear part made of a relatively hard material. The front part of the sole is provided with a plurality of ridges having an arcuate cross section integrally projecting downward from the bottom surface thereof, and each ridge is formed in a hollow shape to form an air pocket inside thereof. The air pocket has a required number of ventilation holes at least in a portion corresponding to the opening of the raised part, and the air pocket of the raised part communicates with the inside of the footwear through the ventilation hole of the insole. ``footwear that has an arch-shaped bulge on the inside of the non-stepping part of the midsole made of a spongy elastic body and a bulge in the center of the metatarsal side. forming a vertical hole extending from the upper surface to the lower surface in the inner sole excluding the bulging portion, and drilling a horizontal groove communicating with part or all of the vertical hole on the lower surface side,
A series of air channels in which the horizontal groove is connected to an air chamber that is provided on the lower surface of the arch-shaped bulge of the untrodden part and that leads to a vent hole that is bored in the covering piece that covers and reinforces the joint between the outsole and the cover. "Footwear constructed with a flow path" (Utility Model Publication No. 37-28727), or "The outsole is made of a thick rubber-like material with high elasticity, and at least the inside of the first half of the footwear is ventilated. The passages are appropriately arranged and both ends thereof are opened to the sides of the outsole, and each ventilation passage is provided with a number of ventilation holes that open into the inside of the footwear, and the side openings of each ventilation passage are A large recess is formed in the recess, and a washer-like magnetic piece is fitted into the recess for fixed support, and a slightly smaller collar-like magnetic piece that can be loosely inserted into the large-diameter recess is inserted into the air passage. The end of the ventilation path can be safely and reliably closed by using the plug and its magnetic adsorption force as needed. ``Breathable footwear having a lace cover'' (Utility Model Publication No. 54-29944),
Furthermore, ``a communication hole is drilled at the bottom of the side wall of the shoe body,
In addition, a recess is provided in the center of the back side of the half-bedded part of the insole,
A shoe comprising an appropriate number of communicating holes that communicate with the surface of the insole in this recess, and a communicating groove that matches the communicating hole of the shoe body in a part of the peripheral wall of the recess.
(Utility Model Application Publication No. 48-41447) Others can be exemplified.

However, among the prior art as mentioned above,
For example, the number of reinforcing covering pieces provided at the joint between the outsole and the shoe cover, simply put, at the bottom of the side wall of the shoe body, is the appropriate number needed to ventilate the inside of the shoe through walking movement. Types with ventilation holes or communication holes are not suitable for use during the rainy season or during rainy seasons, as they tend to introduce and absorb not only outside air but also rainwater on the ground. For example, by adding a check valve to eliminate
The more things are interposed, the more complex the structure becomes.
Not only is it expensive, but it is also prone to breakdowns, and in short, it is impractical.

In addition, in the suction air chamber formed between the lower surface side of the midsole part in the range corresponding to the heel part and the upper surface side of the outsole, the volume increases and decreases with walking movement and performs a pumping action. It is also known that a part of the midsole is provided with a bulge that elastically protrudes upward, or a compression coil spring is provided in the suction air chamber. The format is
Although there are differences in degree, they all have drawbacks such as lacking stability when walking, and feeling like a foreign body, making them uncomfortable to wear.

The present invention has been developed in view of the above circumstances, and it solves and eliminates the various drawbacks, inconveniences, and disadvantages found in shoes of this type that have been publicly known and for public use, and improves ventilation. The objective is to provide an insole for shoes that has further improved properties such as performance, comfort, and durability, and at a low price.

Therefore, the shoe insole according to the present invention has an outer shape that is almost the same as the shape and dimensions of the corresponding shoe insole, and has sufficient internal elasticity over the entire remaining area except for the vicinity of the tip on the toe side. An inner bag made of non-breathable material that is filled and held with two pieces of elastic sponge material (upper and lower) with almost uniform thickness, and an inner bag that stores the entire inner bag and the tip of the inner bag on the toe side. An insole for shoes comprising an outer bag made of a breathable material for storing an outlet retainer made of two pieces of sponge material, the upper and lower parts of which are filled between the upper and lower positions, the heel side end of the inner bag and An air inlet and an air outlet are formed at the tip of the toe side, respectively, and the inlet is provided at a position where air flows from the heel side end toward between the two upper and lower sponge materials. In addition, the outflow port is provided at a position where it opens at the tip of the foot side of the inner bag held by the two upper and lower outflow port holders, so that when walking, the entire back of the heel is exposed to the upper surface of the insole. When the weight is removed from the insole, the inlet opens and air is sucked into the inner bag through the expansion of the sponge material, and then the back of the heel comes into contact with the upper surface of the insole, and the weight acts as a load. Then, the inlet is automatically closed, and at the same time, the outlet is opened by the action of the tip of the foot which is unloaded, and the air sucked into the inner bag from the air inlet is The sponge material is characterized by being configured so that it is discharged into the toe portion of the shoe by compressing the sponge material.

Embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 is a bottom view schematically showing the right foot side of the pair of left and right insoles according to the present invention. It is desirable that the outer shape is as close as possible to the planar shape and dimensions of the corresponding midsole.
As is clear from FIGS. 2 to 4, the breathable outer bag 3 is made of a suitable material, such as chemical fiber or plastic fiber, which has almost no hygroscopicity or water absorption and has excellent abrasion resistance and other properties. An inner bag 1 made of a non-breathable material is entirely housed in the inner bag, and on the inner or outer side of the inner bag, its entire surface area,
That is, a spongy material (porous air bubbles are connected to each other) or a rubber or plastic sponge of suitable elasticity is maintained at a substantially uniform thickness over the compression area 9. The material 2 and the outlet retainer 4 (sponge material) are subjected to a load due to body weight, which increases and decreases with the walking movement, and as a result, the sponge material 2, 4
is elastically compressed or decompressed and therefore automatically releases or absorbs air.

As shown in FIGS. 2 and 3, the insole consisting of the inner bag 1, outer bag 3, and sponge materials 2 and 4 has an air inlet 5 at the heel side (right side in the drawing) end, and an air inlet 5 on the opposite end. An air outlet 6 is formed at the tip of the toe side (left side in the drawing).

Regarding this air inlet 5, the inner bag 1
By folding the upper and lower ends of the membrane made of a non-breathable material inward, a flow path communicating with the air inlet 5 is formed, and for the other air outlet 6, the inner bag 1 is folded. An outflow port retainer 4 is provided on each outer surface side for closing the outflow passage so that the inner surfaces of the two upper and lower membranes made of a non-breathable material can be brought into contact at the ends.

In the drawing, reference numeral 10 indicates a part inside the inner bag 1 corresponding to the arch of the sole of the foot, and 11 indicates a part 10 filled with sponge material 2, which is separated from other parts, like the other parts. This is a partition wall provided inside the inner bag 1 to prevent air communication.

Since the insole as an embodiment of the present invention is constructed as described above, if it is inserted into shoes and used, when a load is applied to the heel as a result of walking, for example, as shown in Fig. 3. As shown in , the air inlet 5 is closed and the sponge material 2 filled in the inner bag 1 is
is compressed in the vertical direction, so the air that had been sucked in and held inside the inner bag is forced forward, and through the air outlet 6 that is opened at this point, it flows into the toe area inside the shoe. is discharged. Then, when the entire back surface of the heel part separates from the top surface of the insole and the weight is removed, the sponge material that had been compressed until then becomes
Due to its own elastic force, external air is sucked through the air inlet 5, and the air inflates and restores itself to its original state.

At this time, the air outlet 6 at the tip of the insole,
Since the outlet is closed by being pressed from above and below by the outlet retainers 4, 4 made of sponge material, air is prevented from flowing into the inner bag from this portion.

By repeating the above-mentioned action, fresh outside air is sucked into the insole from around the heel inside the shoe through the air inlet 5, passes through the air outlet 6, and flows into the foot inside the shoe. Since it is discharged to the toe part, ventilation inside the shoe is achieved.

As is clear from the above explanation, according to the present invention, the strong impact applied to the heel and the entire sole of the foot during walking can be effectively absorbed or absorbed by the sponge material having an appropriate uniform thickness and elasticity. Not only can it be expected to provide excellent ventilation and air permeability, but also has excellent durability due to its simple structure, and can be provided at a low price. You can get a big profit.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a bottom view schematically showing the right insole of a pair of left and right insole according to the present invention, and Figs. 2 and 3 show its function. FIG. 4 is a longitudinal cross-sectional view for explanation, and a cross-sectional view thereof as well. 1... Inner bag (made of non-breathable material), 2... Sponge material with sufficient elasticity, 3... Outer bag (made of breathable material), 4... Outflow port suppressor (sponge material), 5
...Air inlet, 6...Air outlet, 9...
Compression part, 10... Part corresponding to the arch of the sole, 11... Partition wall.

Claims (1)

[Scope of utility model registration request] It has an outer shape that is almost the same as the shape and dimensions of the corresponding shoe insole, and has two upper and lower sponge materials that have sufficient elasticity inside the entire area except for the vicinity of the tip on the toe side. Filled with uniform thickness,
An inner bag made of non-breathable material that holds the inner bag, and an outlet suppressor made of two pieces of sponge material, upper and lower, filled in a position that stores the entire inner bag and sandwiches the tip of the foot side of the inner bag from above and below. An insole for shoes that includes an outer bag made of a breathable material for storing air, wherein an air inlet and an air outlet are formed at the heel side end and the toe side end of the inner bag, respectively. The inflow port is provided at a position where air flows from the heel side end toward between the two upper and lower sponge materials, and the outflow port is held between the two upper and lower outflow port retainers. The inlet is provided at a position where it opens at the tip of the toe side of the insole, and when the entire back side of the heel is removed from the upper surface of the insole while walking, the inflow port opens and the sponge material expands. Air is sucked into the inner bag through the insole, and when the back of the heel comes into contact with the upper surface of the insole and the weight is applied as a load, the inlet port automatically closes and the weight is removed at the same time. The outflow port is opened by the action of the toe part, and the air sucked into the inner bag from the air inflow port is discharged to the toe part of the shoe by compression of the sponge material. A shoe insole characterized by: