JPS631846Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial use) This invention uses cork grains to provide heat retention, breathability,
This relates to a shoe insole that has excellent elasticity and fits the shape of each individual's sole.

(Conventional technology) Cork grains have excellent heat retention, breathability, and elasticity.
It is a good material for shoe insoles.

However, conventional shoe insoles made of cork grains formed into a sheet have the disadvantage that cracks occur between the cork grains due to bending during use, making the sheet easy to break and lacking in durability.

In addition, since the foot shape is determined at the manufacturing stage of the shoe insoles,
It did not fit perfectly to each individual's sole shape.

(Problems to be solved by the invention) The object of the present invention is to provide an insole that perfectly fits the sole shape of each individual and has excellent flexibility and durability.

(Means for solving problems) The shoe insole of the present invention has the following configuration.

An original plate 2 is formed by mixing and molding cork grains 4, nonwoven fabric fibers 5, and a thermoplastic binder.

The insole material B is formed by laminating this original plate 2 with the surface material 1 or the back material 3.

The foot is placed on the insole material B, which has been made soft and deformable by heating, and the shape of the sole is taken.

This insole material B is cooled, cut to the size of the foot,
Use as an insole.

(Example) As shown in FIG. 4, the shoe insole according to the present invention has the following features:
The foot is placed on the insole material B, which has been heated to approximately 50°C by a heater C to allow it to be softened and deformed, and the shape of the sole of the foot is taken.The insole material B is then cooled and hardened and cut into the shape of the foot. be.

The insole material B has a slightly larger approximate foot shape as shown by the two-dot chain line in FIG. 1, and is made by integrally laminating a surface material 1, an original plate 2, and a back material 3 from the front side.

The surface material 1 or the back material 3 is made of breathable material such as leather, synthetic leather, saran, cotton cloth, synthetic fiber fabric, knitted fabric, etc.
It is not particularly limited as long as it has excellent wear resistance.

The original plate 2 is a plate-like body made of cork grains 4, nonwoven fabric fibers 5, and a thermoplastic binder.

The fibers 5 for nonwoven fabric may be any fiber as long as it can be mixed uniformly with the cork grains 4 and the binder, and are not particularly limited, but nylon fibers are preferred.

The binder may be any thermoplastic synthetic resin that softens at about 50°C or higher and hardens at about 50°C or lower.

This is because if a binder that softens at too high a temperature is used, the insole material B must be heated to a high temperature, which may cause a risk of burns.

In addition, if a binder that softens at too low a temperature is used, the insole will deform during use, resulting in problems such as the foot shape collapsing, which is undesirable.

The binder is not particularly limited, but synthetic resins such as ethyl vinyl alcohol (EVA), polyethylene, isoprene, and rubber may be used alone or in combination.

Next, a method for manufacturing a shoe insole according to the present invention will be explained.

Cork grains 4, nonwoven fabric fibers 5, and a binder are thoroughly mixed, heated and pressurized to shape, and cooled to harden the binder to form a plate-shaped original plate 2.

Adhesive is applied to the front and back surfaces of this original board 2, the front and back materials 1 and 3 are adhered, and this plate-like body is cut into a slightly larger approximate foot shape to form an insole material B.

This insole material B is heated to about 50° C. in a heater C such as an oven at a store or the like to soften and become deformable.

The fourth insole material B is in a softened and deformable state.
As shown in the figure, the orderer's foot D is placed on it and the sole of the foot is taken.

Thereafter, the insole material B is cooled and hardened and cut to the size of the foot to form the insole A shown in FIG.

In the above embodiment, the front and back materials 1 and 3 were bonded and laminated on the front and back surfaces of the original plate 2 using an adhesive. A mixture of cork grains 4, nonwoven fabric fibers 5, and a binder is placed in the mold, and heated and molded.
A shoe insole may be made by cooling and hardening and integrally laminating the original plate 2 and the front and back materials 1 and 3.

In the above embodiment, the surface material 1 is applied to the front and back surfaces of the original plate 2.
Although the explanation has been given using an example in which the back material 3 and the back material 3 are laminated, as shown in FIG.
As shown in FIG. 6, the surface material 1 may be omitted.

The temperature at which the insole material B is heated is about 50° C. in the above embodiment, but it may be any temperature at which the insole material B softens and deforms when the foot D is placed on it and does not cause burns.

In other words, it takes only a few seconds to place the foot D on the heated insole material B, the temperature that feels hot varies from person to person, and adjustments such as covering the socks or increasing the thickness of the sock fabric are necessary. The temperature at which the insole material B is heated is as follows.
There are no particular limitations, but for safety reasons,
This is a guideline.

(Effects of the invention) The shoe insole of the invention uses the base plate 2 consisting of cork grains 4 and nonwoven fibers 5, so it has good heat retention and
Excellent breathability and elasticity.

In the shoe insole of the present invention, the surface material 1 or the back material 3 is laminated on the original plate 2 consisting of cork grains 4, nonwoven fibers 5, and a binder, so that the cork grains 4 are uniformly distributed between the nonwoven fibers 5. The cork particles 4, the nonwoven fabric fibers 5, and the nonwoven fabric fibers 5 are firmly adhered to each other, and have excellent flexibility and durability.

In the shoe insole of the present invention, the surface material 1 or the back material 3 is laminated on the original plate 2 consisting of cork grains 4, nonwoven fibers 5, and a binder, so that the cork grains 4 are uniformly distributed between the nonwoven fibers 5. The cork grains 4, the nonwoven fabric fibers 5, and the nonwoven fabric fibers 5 are firmly adhered to each other, do not deform in the lateral direction, and have excellent shape retention.

The shoe insole of the present invention uses an original plate 2 in which cork grains 4 and nonwoven fibers 5 are coated with a thermoplastic binder, so that it can be tightly fitted to the shape of the sole of the foot.

In the shoe insole of the present invention, the surface material 1 or the back material 3 is laminated on the original plate 2 consisting of cork grains 4 and nonwoven fibers 5, so that the inside of the sole of sports shoes etc. is uneven and bends severely. It also has an excellent feel when used for shoes.

The shoe insole of the present invention has a surface material 1 or a back material 3 laminated on a base plate 2 consisting of cork grains 4 and non-woven fibers 5, so when used in ski shoes etc.
It exhibits excellent cold protection and also has excellent shock absorbing properties.

[Brief explanation of drawings]

Fig. 1 is a surface view of the shoe insole of the present invention, Fig. 2 is a partially omitted enlarged sectional view taken along the - line in Fig. 1, Fig. 3 is a partially enlarged sectional view of the original plate of Fig. 2, and Fig. 4 is a partially enlarged sectional view of the original plate of Fig. 2. The figure is an explanatory diagram of the foot shape of the shoe insole according to the present invention, and FIGS. 5 and 6 are partially omitted enlarged sectional views of other shoe insoles according to the present invention. A... Shoe insole, B... Insole material, C... Heater, D... Feet, 1... Surface material, 2... Original board, 3...
...Backing material, 4...Cork grains, 5...Fiber for nonwoven fabric.

Claims (1)

[Scope of utility model registration request] Insole material B is formed by laminating cork grains 4, nonwoven fabric fibers 5, and a thermoplastic binder on an original plate 2 that can be softened and deformed by heating, and then laminating and integrating the surface material 1 or the back material 3. A shoe insole characterized by being processed into a desired foot shape.