JPS6331602A - Ventilator of boots - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to preventing stuffiness in poorly ventilated shoes such as rain boots.

Conventional 9 UshiJ Normally, rubber boots and rain boots have longer tubes than men's shoes, so the air inside cannot be ventilated and they tend to slip forward easily.For this reason, a groove is created from the toe of the boots to the tube opening to keep the air out. Boots that were designed so that they could easily pass through this groove to the outside were first introduced in 1972.
This is proposed by Japanese Patent No.-194805.

In addition, boots with holes and covers on the sides of the boots are shown in U.S. Pat.

As with the conventional device mentioned above, when walking, the amount of air that naturally enters through the hole was not sufficient to prevent stuffiness.

This was an attempt to provide an effective means for introducing more outside air into the boots to prevent stuffiness.

According to the present invention, the shoes are provided with a device for pushing down the soles of the boots to ventilate the boots.

Prevent stuffiness by installing a device in your shoes to push down the soles of your shoes, and then actively pulling your feet out of the shoes as soon as they leave the ground, and allowing only the bones of your feet that have been pulled out to breathe in outside air. That is.

1. To explain this using drawings, Figure 1 (a) is a longitudinal sectional view of the first embodiment, in which the presser plate (1) is connected to the insole (3) through the spring (2). and shoes (4
) is provided at the heel so as to push down. 1st
In Figure (b), the person's heel is pressing down on i (1), and the foot is at its deepest point inside the boot. Figure 1 (c) shows the presser plate (1) when the heel is raised.
The shoe (4) is pushed down, and the foot is now pulled out from the first shoe by the distance that the heel is raised. Figure 2 shows the second embodiment, in which one end of the gono plate (2゛) is fixed to a reinforcing plate (5) attached to the side of the shoe to prevent the tube from bending; One end is attached to the holding plate (1゛).

When you put on your shoes, your heel will be in the shape of stepping on the presser plate (l゛),
The rubber i (2') is stretched and the presser plate (1') is brought into close contact with the sole of the shoe. Also, when the heel rises, the rubber plate (2°) contracts and the presser slope (1'') separates from the sole of the shoe, and as a reaction, the shoe is pushed down, and the foot is pulled out of the shoe to create more space. Air can enter.

Figure 3 shows an example of an insole (3) in which open-cell elastic foam (2") is provided in the front and heel areas. In this case, the entire sole of the foot is separated from the sole. It can promote ventilation, especially in the front part of the soles of the feet, which tend to get sweaty.

In the above embodiment, there are no holes on the sides of the boots to take in air, so outside air will enter through the opening, but if you make ventilation holes near the soles of the boots, you can avoid ventilating the soles of the feet, which are difficult to ventilate. can be ventilated more effectively.

Figure 4 shows the cover to prevent snow and mud from entering the tube mouth (6)
Attach the intake check valve (7) and exhaust check valve (8) to the boots with
), the press-down device according to the present invention actively repeats depressurization and pressurization inside the shoe, and outside air enters through the intake valve (7) and exhaust valve (8).
It is expelled vigorously. In addition, in order to prevent the cylindrical portion from denting when the pressure is reduced, it is possible to easily secure the amount of ventilation by reinforcing the cylindrical portion to prevent it from denting.

Figure 5 shows an example in which the reinforcing plate (5゛) in Figure 2 also has the function of inflating the cylindrical part, and the reinforcing plate (5゛) is U-shaped and open at the top and is made of an elastic plate. It is being

When the heel is raised, that is, when air is inhaled, the cylindrical portion is expanded by the reinforcing plate (5°), the cylindrical portion becomes thicker, and its cross section becomes nearly circular.

Also, when the presser plate (1°) is pressed down with the foot, the reinforcement i (
5'), the cylindrical part is drawn inward, and the cross-sectional area of the cylindrical part becomes smaller. Therefore, it is possible to take in and exhaust more air than the volume of the foot when it comes out of the shoe.

This method may be particularly effective when applied to the boots of FIG. 4, which have a canopy.

If you think of the boots as a [cylinder] and the feet as [pistons], the inside of the boots can be ventilated by the up and down movement of the feet. Even without using the push-down device of the present invention, it is possible to make boots that are a little baggy. When you wear it, you can really feel the piston action. The reason shoe stores recommend boots one size larger to customers who find their boots stuffy is to use this piston effect to prevent stuffiness.

However, even so, rain boots have been labeled as shoes that get stuffy, and it has become common knowledge that rain boots get stuffy.

However, with the push-down device according to the invention, firstly,
Since more legs are removed, the amount of air inhaled increases.

Second, the moment the heel leaves the ground, the shoe is suddenly lowered by the force of the spring, causing a strong decompression inside the shoe.

This strong decompression is especially effective when air is taken in and exhausted from a hole or when the air resistance in the air passage is large, as shown in Figure 4. This is because one cycle of air must be completed within 0.5 seconds, so if the suction force is weak, the amount of air sucked within 0.5 seconds will be small.

In addition, in the case of Figure 1, when the free length of the coil spring was made to be 40 mm and the shoe was worn, it was clearly felt that the pressure inside the shoe was rapidly reduced with every step.

As mentioned above, the foot is likened to a piston and its vertical movement is actively expanded, making it possible to draw outside air from the crowd into the inside of the boots. This is a simple idea that expands on the fact that baggy shoes are less prone to slipping than tight-fitting shoes, and in the case of Figure 1, the structure is simple with only a slope and a spring. However, it is particularly excellent in that it can obtain several times the amount of intake and exhaust compared to those with an air pump chamber in the insole or those with just holes. Moreover, it can be used regardless of the type of boots or the manufacturer. Also, although the tube part is short like safety shoes, it can also be used for shoes that tend to get stuffy due to strenuous labor. Moreover, since the structure is simple, it can be easily manufactured.

[Brief explanation of the drawing]

Figures 1 (A), (B), and (C) are a longitudinal sectional view and an operation explanatory diagram of the first embodiment, and Figure 1 (B) is a view when the foot is lowered, and Figure 1 (H) is a diagram showing the operation when the foot is lowered. ) is a view when the foot is up, FIGS. 2(A) and 2(B) are a vertical IJfrIlj side view and a vertical cross-sectional rear view of the second embodiment, and FIG. 3 is a vertical cross-sectional view of another embodiment. FIG. 4 is an external view of the shoe with a cover, and FIGS. 5(a) and 5(b) are longitudinal cross-sectional views of another embodiment when the foot is raised and lowered. (1) (1')・-Push plate, (2)・-Spring, (2
′)・-Rubber plate, (2゛)-Foam, (3)-
- Insole, (4) - - Boots, (5) - Reinforcement plate, (6) - - Canopy, (7) - - Reverse IF valve for intake, (8) - - Reverse reverse valve for exhaust. Patent applicant: Oshin Shoji Co., Ltd.
” , ', 1st generation Rihito
Shogo Hara 1 ,'1・”--m-] 1st +'/l (I/
'E i f'+7
(o) Figure 2 tI) (0) Figure 4 jS5

Claims (1)

[Claims] (1) A ventilation device for boots, characterized in that the shoes are provided with a device that pushes down the soles of the shoes.