JPH0631925Y2 - Insole - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an insole to be laid in shoes.

[Conventional technology]

Conventionally, the insole has generally been a sea surface textured insole body in which a chemical is impregnated or activated carbon is mixed.
The sweat (moisture) in the shoes is effectively absorbed.

[Problems to be solved by the invention] However, since the above insole is made of an elastic material, the sea surface textured insole is dented, and the moisture that has once been effectively absorbed by the foot stepping force. There was a problem that the feet were squirted on both surfaces of the insole and the feet became damp, and that they were infected with bacteria.

Therefore, as a result of various studies and diligent research, it was found that it is effective to use a hydrophilic porous plastic, which is a rigid polyolefin-based functional material with low elasticity, which is made by sintering polyethylene in a porous form. It was

However, since the above materials are mechanically weak, they cannot withstand repeated foot treading forces for a long period of time.

The present invention has been made in consideration of the above-mentioned points, and has good hydrophilicity, that is, water absorption rate, water absorption rate, and water drop absorbability, absorbs sweat (moisture) satisfactorily, and once absorbed moisture appears on the surface. It is an object of the present invention to provide a durable insole that does not have the above-mentioned problems and that can sufficiently withstand the stepping force of the foot that is repeated for a long period of time.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention has a structure in which dots are formed on both sides of a main body of an insole made of a hydrophilic porous plastic of a rigid polyolefin functional material having a low elasticity obtained by sintering and molding polyethylene into a porous shape. Alternatively, it is characterized in that the cloths are adhered to each other via an adhesive applied linearly.

[Action]

According to the above configuration, the generated water permeates the cloth on the upper surface, and is absorbed and diffused from the cloth on the upper surface by the capillarity of the main body of the insole formed of the hydrophilic porous plastic of the polyolefin functional material. By the action of gravity, it penetrates into the fabric on the lower surface.

When the pressure on the insole disappears, the moisture absorbed and diffused by the insole body comes into wider contact with air through a large number of gaps of the material to promote the evaporation action, and the gap thus formed is again formed. Causes capillarity.

Therefore, the moisture that has penetrated to the fabric on the lower surface is also effectively absorbed and evaporated.

In addition, since cloth is attached to both sides of the main body of the insole, the mechanical strength of the insole is increased, and it is possible to withstand the repeated treading force for a long period of time.

〔Example〕

 Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an embodiment of the insole of the present invention,
FIG. 2 is a sectional view thereof.

Reference numeral 1 denotes a flat insole body having a predetermined thickness, which has the same shape as the inner bottom surface of the shoe. The main body 1 of the insole is formed of a hydrophilic porous plastic which is a rigid and rigid polyolefin functional material obtained by sintering and molding polyethylene into a porous shape.

The insole body 1 formed of the hydrophilic porous plastic of the polyolefin-based functional material is formed of, for example, Sunfine AQ (trade name, manufactured by Asahi Chemical Industry Co., Ltd.) having an appropriate thickness. As shown in FIG. 3, an adhesive 2, for example, hot melt is applied in spots on both surfaces 1a, 1b of the insole body 1, and a cloth 3, for example, synthetic fiber cloth is pasted through the hot melt. ing. The insole body 1 is impregnated with plant liquids such as Kuromatsu, Akamatsu, Ezomatsu, Kuriza, Hedges, and other synthetic deodorant liquids to deodorize unpleasant odors. Are formed.

According to such an insole, since the insole body 1 is formed of hydrophilic porous plastic of polyolefin-based functional material, for example, Sunfine AQ (trade name),
That is, the water absorption rate, the water absorption rate, and the water drop absorbency are particularly good. For example, the water absorption rate is 50%, the water absorption rate is 4.0 cm / 1 minute, and the water drop absorbency is <1 second. Since the adhesive (hot melt) 2 for sticking the cloth (synthetic fiber cloth) 3 is partially applied in a dot shape as shown in FIG.
Most of a and 1b are exposed and no hydrophilic property is lost. Therefore, sweat (moisture) can be absorbed well.

That is, the generated water permeates the cloth 3 on the upper surface 1a, is absorbed and diffused from the cloth 3 on the upper surface 1a by the capillarity of the insole body 1 formed of the hydrophilic porous plastic of the polyolefin functional material, Also penetrates into the fabric 3 on the lower surface 1b by the action of gravity.

Then, when the pressure on the insole is removed, the moisture absorbed and diffused by the insole main body 1 comes into wider contact with the air through a large number of gaps of the material to promote the evaporation action,
The gap thus created again causes capillary action.

Therefore, the water that has penetrated to the fabric 3 on the lower surface 1b is also effectively absorbed and evaporated.

Further, by impregnating the insole main body 1 with a deodorant, it is possible to prevent the inhabitation of bacteria and the like while decomposing and deodorizing sweat as it passes.

Since the hydrophilic porous plastic (Sunfine AQ) has low elasticity, it does not deform or shrink depending on the stepping force of the foot, and the moisture and water once absorbed by the insole body 1 are on the surface 1a. , 1b never comes out. Therefore, even if the shoes are worn for a long time, the feet do not get stuffy, and the propagation of bacteria can be suppressed to prevent bacterial infection. Moreover, if the above-mentioned deodorizing liquid is impregnated, it is possible to eliminate unpleasant odors.

Further, even with a hydrophilic porous plastic (Sunfine AQ) having a relatively low rigidity, since the cloth (synthetic fiber cloth) 3 is attached to both surfaces 1a and 1b, the mechanical strength is increased. In particular, the bending force becomes strong, and it is durable without being damaged even by the treading force of the foot which is repeated for a long period of time.

In the above example, the adhesive (hot melt) 2 for sticking the cloth (synthetic fiber cloth) 3 to the insole body 1 is dotted,
As shown in FIGS. 4 and 5, the adhesives 4 and 5 may be partially applied in the form of a lattice or a mesh line, and the same effect can be obtained in such a case.

[Effect of device]

As described above, according to the present invention, the cloth is attached to both sides of the main body of the insole made of the hydrophilic porous plastic of the polyolefin-based functional material through the adhesives applied in the form of dots or lines, thereby making it hydrophilic. Properties, i.e. water absorption rate, water absorption rate,
Has good water drop absorbency, absorbs sweat (moisture) satisfactorily, and once absorbed moisture does not appear on the surface. Therefore, the foot does not get damp, and the bacterial growth can be suppressed to prevent bacterial infection. Moreover, the mechanical strength is increased and the durability is sufficiently high to withstand the stepping force of the foot which is repeated for a long period of time.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG. 1, FIG. 3 is a partially enlarged surface view of an insole body, and FIGS. FIG. 4 is a partially enlarged surface view of an insole body of another example. 1 ... Insole body 1a, 1b ... Surface 2,4,5 ... Adhesive 3 ... Cloth

Claims (1)

[Scope of utility model registration request] 1. An adhesive which is applied in dots or lines on both sides of a main body of an insole formed of hydrophilic porous plastic of a rigid polyolefin functional material having low elasticity, which is formed by sintering polyethylene into a porous shape. Insoles characterized by sticking fabrics through