JP2001161401A - Boot and method for manufacturing same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove humidness around a foot due to bad ventilation inside a boot to cause a sanitary trouble such as bad smell and accelerate propagation of miscellaneous germs. SOLUTION: Ventilation holes 4 are formed between an outer layer 2 and an inner layer 3 in this boot 1 to be opened in an upper part 5 of the boot 1 and extended to a lower part 6. A lower part of the ventilation hole 4 is formed through an opening part 14 in the inner layer 3 to be communicated with the inside 7 of the boot 1. By means of the ventilation hole 4, outer air is introduced when temperature inside the boot is higher than that of outer air, and inner air is discharged when temperature of inside of the boot 1 is lower than that of outer air, so air is circulated. Air inside the boot 1 is thus effectively circulated with outer air by temperature difference between the inside and the outside of the boot 1, thereby favorable feel to wear can be constantly achieved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to boots, and more particularly to waterproof boots.

[0002]

2. Description of the Related Art Conventionally, what is referred to as waterproof boots does not allow water or air to pass through both materials and structures, and the boots cannot be replaced by discharging air from the boots even when walking. Ventilation of the area near the sole could not be performed. Originally, the foot sweats a lot, and the sweat in the shoes increases with walking, so the humidity inside the shoes becomes abnormally high and the socks and the boots' backing cloth gets wet, which causes the feet to get stuffy and uncomfortable It increases the odor, and also promotes the propagation of various germs, which is not good for hygiene. Also, as described above, when the socks or boots' backing cloths get wet, the heat conductivity increases, and in cold regions, the body temperature is deprived of the outside air through the shoes, the feet become cold, and the body becomes cold.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a boot that can be worn comfortably with good ventilation in the boot and no stuffiness in the boot.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a ventilation hole is formed between an outer layer and an inner layer of a boot and opens downward at the top of the shoe, and a lower portion of the ventilation hole passes through the inner layer. It communicates with the inside of the shoe, and due to the convection effect caused by the difference between the temperature inside the shoe and the temperature of the outside air, the air inside the shoe is effectively exhausted and the air is taken into the shoe, so that it is always good It is intended to obtain a comfortable feeling. Further, a ventilation hole member for forming the ventilation hole is separately formed, and this is interposed and fixed between the inner layer and the outer layer of the boot so as to easily manufacture boots having the ventilation hole. is there. The boots of the present invention include semi-boots.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A ventilation hole 4 is formed between an outer layer 2 and an inner layer 3 of a boot 1. The ventilation hole 4 is formed continuously from the upper part 5 to the lower part 6 of the boot 1, and a lower part thereof communicates with the inside 7 of the shoe through the inner layer 3 of the shoe. It communicates with the outside of the upper part 5 of the shoe via the ventilation hole 4.

The cross section of the ventilation hole 4 can be square, rectangular, circular, elliptical or any other suitable shape.
Although one ventilation hole can be provided, a plurality of ventilation holes can be provided. When a plurality of ventilation holes are provided, it is often preferable to form the ventilation holes in parallel.

In the figure, a plurality of elongated ventilation holes 4 are formed from the mouth edge 11 above the front portion 9 of the trunk 8 of the boot 1 to the toe portion 13 below through the upper 12. As a result, it is possible to improve the air circulation described below. The ventilation holes 4 communicate with the inside of the shoe 7 through openings 14 formed in the inner layer 3 of the toe portion 13, respectively. Each of the plurality of ventilation holes independently communicates with the upper toe edge 11 from the toe portion 13 in the shoe, but the ventilation holes may be formed so as to communicate with each other in an appropriate number. Further, the ventilation hole may be formed so as to communicate from the side of the boot to the side surface of the foot such as the arch.

When the boot 1 is manufactured, as shown in FIG. 3, an aluminum male mold 1 having a ridge 17 for forming a groove 16 for the ventilation hole 4 of a ventilation hole forming mold 15 is shown.
8 and an unvulcanized rubber are set in an aluminum female mold 22 having a concave portion 23 in contact with the top of the ridge 17 and pressurized under a condition of, for example, 8.85 MPa, 155 ° C., and 7 minutes by a press machine. Heat and vulcanize. After the vulcanization, the male and female molds are separated and the molded product is taken out. Unnecessary burrs are removed to form a vent member 24 having a groove 16 (FIG. 4).

A boot cloth 27 is covered with a backing cloth 28 from the toe of the boots mold 27 and the upper part is fixed with a nail 29 (FIG. 5), and a vulcanized rubber paste is applied to the surface thereof. As shown in FIG. 6, from the front part 31 of the trunk part 30 of the boots mold 27 to the toe part 32, a rubber sheet, a vinyl sheet and a composite having a thickness of about 0.5 ± 0.2 mm are formed. An inner sheet 33 made of a leather sheet or other material having poor air permeability is attached. The inner sheet 33 and the backing cloth 28 that contact the toe 32 are partially cut away to form the opening 14, but in the illustrated example, the opening 14 is formed into a horizontally elongated oval hole of about 1 × 5 cm. I have. The inner sheet 33
In some cases, a material having a certain degree of air permeability can be used.

A vulcanizing adhesive is applied to the side of the preformed vent member 24 where the groove 16 is provided, and the vulcanizing adhesive is applied to the inner surface sheet 33 so that the vent hole 4 is formed. The inside and the outside of the shoe communicate with each other through the opening 14 in the toe (FIG. 7). Then, as shown in FIGS.
7, a middle bottom 38 and a middle core 39 are applied to the bottom 36 side, and the bottom winding 40 and the rear bees 41 are sequentially attached. Then
As shown in FIG. 9 and FIG. 10, the under-upper rubber 42 is adhered, and the rubber trunk 43 is further adhered to the whole, which is sufficiently rolled and adhered sufficiently. A large bottom 44 is stuck to the bottom to perform sufficient pressure bonding, and a decorative tape 45, a mark 46, etc. are stuck and rolled to obtain a semi-finished product.

A synthetic resin paint is applied to the semi-finished product in order to enhance the weather resistance. For example, an air pressure of 0.29 MPa (2.
Vulcanization is performed under the conditions of 94 kgf / cm ² ), a temperature of 132 ° C. and a time of 55 minutes, the mold 27 for boots is extracted, and unnecessary parts such as the upper part of the decorative tape 45 are removed to obtain boots 1.

When walking while wearing the boots 1, the temperature inside the shoe 7 gradually rises, and when the temperature rises higher than the outside air temperature, the air inside the shoe becomes lighter than the outside air and rises inside the shoe, and is discharged from the shoe 10 and discharged therefrom. Along with this, low-temperature outside air passes from the upper part of the shoe to the lower part of the shoe through the ventilation hole 4 and is introduced into the inside 7 of the shoe through the opening 14 of the toe, and the air in the shoe circulates (FIG. 1).
2). When the temperature of the inside of the shoe 7 is lower than the outside air temperature, the upper 12 and the torso 8 of the boots warmed by the outside air heat the air in the ventilation hole 4, which is different from the state shown in FIG. Conversely, the air in the vent rises and is discharged from the upper part of the shoe, and the outside air is introduced into the inside 7 of the shoe from the mouthpiece 10 so that the air in the shoe circulates.

As described above, when the temperature inside the shoe is high, cool air is introduced into the shoe, and when the temperature is low, warm air is introduced, so that the inside of the shoe is kept at an appropriate temperature and the humidity is kept low at any time. Because it can be kept, there is no discomfort or unsanitary condition due to stuffiness. Also, since the humidity in the shoes is low as described above, the heat insulation effect by the air in the shoes is high, and the shoes can be worn warm in winter and cool in summer and comfortable.

[0014]

As described above, according to the present invention, since the ventilation of the inside and outside of the boot can be circulated well, the inside of the shoe can be kept in a good environment. Also, the inner layer side of the shoe can sufficiently maintain the heat retaining property with an economical knitted cloth without using a thick nonwoven fabric and a laminate of bore and urethane which have been conventionally used as a backing cloth for heat retaining. In addition, the appearance is the same as that of conventional boots and there is no uncomfortable feeling, and the production process can be simplified and economical by using the vent member. In particular, the boots are useful as work boots for long hours of use or as leisure boots.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of the present invention.

FIG. 3 is a perspective view showing a production mold for a vent member.

FIG. 4 is a perspective view of a vent member.

FIG. 5 is an explanatory view showing one example of a manufacturing process of boots of the present invention.

FIG. 6 is an explanatory view showing a step subsequent to FIG. 5;

FIG. 7 is an explanatory view showing a step subsequent to FIG. 6;

FIG. 8 is an explanatory view showing a step subsequent to FIG. 7;

FIG. 9 is an explanatory view showing a step subsequent to FIG. 8;

FIG. 10 is an explanatory view showing a step subsequent to FIG. 9;

FIG. 11 is an enlarged partial sectional view of a toe portion of a completed boot.

FIG. 12 is an explanatory view showing a state of ventilation in boots.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Boots 2 Outer layer 3 Inner layer 4 Ventilation hole 5 Upper part of a shoe 6 Lower part of a shoe 7 Inside of a shoe 8 Body 10 Mouthpiece 11 Mouth edge 13 Toe part 14 Opening 18 Male type 22 Female type 24 Vent member 27 Boots mold 33 Inner surface Sheet

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Claims (4)

[Claims] 1. A boot having a ventilation hole opened above a boot and extending downward between an outer layer and an inner layer of the shoe, and a lower portion of the ventilation hole communicates with the inside of the shoe through the inner layer. . 2. The boots according to claim 1, wherein the ventilation holes are opened at the upper edge of the boots above the boots, pass between the outer layer and the inner layer in front of the boots, and communicate with the insides of the boots at the lower toes. 3. The boots according to claim 1, wherein a plurality of the ventilation holes are provided in parallel from the upper side to the lower side of the boots. 4. An inner sheet having poor air permeability is applied from above the trunk to the toe of the boots mold covered with an inner backing cloth, and the inner sheet of the toe and a part of the backing cloth. To form an opening, separately forming a ventilation member having a plurality of parallel grooves extending from the upper part of the body to the toe corresponding to the inner surface sheet, and forming a groove on the groove side of the ventilation member. A method of manufacturing boots in which the inside and outside of the shoe communicate with each other through the opening, and the whole of the shoe is covered with rubber for the outer layer, and vulcanized.