JP2001204504A - Footwear and inner sole for footwear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To develop a footwear with formed projecting and recessed shapes coincident with the shape of the sole of a foot of a user and provide a footwear easy to wear and hard to feel tired. SOLUTION: In this footwear, an upper cover part is integrated into the sole of a shoe and an intermediate member 5 is arranged on a bottom surface on the inside. The intermediate member 5 is one that surface cloth 6 and a cushion layer 7 are laminated. A front face vicinity and a rear face vicinity of the cushion layer 7 present planar shapes in cooperation with fusion and heat contraction, is reduced in cushion property and is low in flexibility. The middle of the cushion layer maintains a mat state, holds cushion property and is high in flexibility. In the footwear, the intermediate member 5 is plastically deformed according to weight of a user. After a while from starting the use of the footwear, the surface shape of the intermediate member 5 becomes coincident with the shape of the sole of the foot of the user. Therefore, the intermediate member 5 gets to fit the foot of the user, the user feels comfortable to wear and does not feel tired.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to footwear and an insole for footwear which can be fitted to a foot and cushioned from a road surface.

[0002]

2. Description of the Related Art In order to reduce an impact from a road surface during walking, an intermediate member serving as a cushion is arranged inside or separately from a shoe body inside a shoe sole. As the intermediate member, a rubber plate, a mat of polyester fiber, or the like is used. In many commercially available shoes, the intermediate member is often in the form of a flat plate, but it is desirable that the intermediate member has a curved surface that matches the unevenness of the sole from the viewpoint of good comfort and fatigue. Therefore, in high-grade footwear, the intermediate member is provided with irregularities corresponding to the shape of the arch and the like.

[0003]

However, the shapes of the soles of humans vary widely, and it is impossible to provide a curved shape conforming to the soles of all people on the intermediate member. If the uneven shape of the intermediate member does not match the shape of the sole of the user, the user will feel uncomfortable. Accordingly, an object of the present invention is to develop footwear and an insole in which an uneven shape conforming to the shape of the sole of a user is formed, and to provide a footwear that is easy to wear and that does not easily cause fatigue.

[0004]

According to a first aspect of the present invention, there is provided a footwear in which an intermediate member is arranged on a bottom member, the intermediate member has a cushion layer, The footwear is characterized in that the surface hardness of the cushion layer is higher than that of the middle layer and the flexibility of the surface is lower than that of the middle layer.

[0005] The footwear of the present invention includes an intermediate member having a cushion layer. Therefore, when the user wears the footwear of the present invention, the cushion layer at the portion where the load is applied is pushed by the weight and is deformed. Here, in the footwear of the present invention, as described above, the hardness of the surface of the cushion layer is higher than the middle, and the flexibility of the surface is lower than the middle. Therefore, the surface of the cushion layer is plastically deformed by short-time use, and the formed curved surface shape cannot be restored. Therefore, in the footwear of the present invention, the cushion layer is deformed by use and conforms to the sole of the user. Also, in the footwear of the present invention, only the surface portion of the cushion layer is plastically deformed, and the cushioning property is maintained in the middle, so that even if the surface of the intermediate member is deformed into a curved shape by use, the cushioning property of the intermediate member is Is maintained.

A second aspect of the present invention is to solve the same problem.
According to the invention described in the above, in the footwear in which the intermediate member is disposed on the upper portion of the bottom member, the intermediate member has a mat-like cushion layer, and the cushion layer has a surface with a higher density than the middle, Footwear characterized in that surface flexibility is lower than in the middle.

The footwear of the present invention has a mat-like cushion layer, and the cushion layer has a surface with a higher density than the middle, and has a lower surface flexibility than the middle. Therefore, when the user wears the footwear of the present invention, the cushion layer at the portion where the load is applied is deformed, the surface of the cushion layer is plastically deformed, and the formed unevenness is restored, similarly to the above-described claim 1. Disappears. Therefore, the footwear of the present invention conforms to the sole by use. Further, in the footwear of the present invention, only the surface portion of the cushion layer is plastically deformed, and the cushioning property is maintained in the middle, so that the cushioning property is maintained even if irregularities are formed by use.

According to a third aspect of the present invention, the intermediate member is obtained by subjecting a mat containing polyester fibers to a needle punching treatment, and further heating the surface to harden the surface. Item 3. The footwear according to item 1 or 2.

The footwear of the present invention is obtained by subjecting a mat containing polyester fibers to a needle punching treatment and is in the form of a nonwoven fabric. In addition, since the polyester fiber is thermoplastic, the surface side can be cured by heating from the surface side.

[0010] The invention of the insole which exhibits the same function and effect as the above-mentioned invention is characterized in that a mat containing polyester fibers is subjected to needle punching treatment, and further heated from the surface side to cure the surface, thereby improving the flexibility of the surface. Is lower than the middle.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A footwear and an insole for footwear according to the present invention will be described below with reference to FIGS. FIG. 1 is a perspective sectional view of footwear according to the present invention. FIG. 2 is a front view and a plan view of the footwear of FIG. FIG. 3 is an exploded perspective view showing a layer configuration of an intermediate member of the footwear of FIG. FIG.
FIG. 2 is an enlarged cross-sectional view conceptually showing a state of an intermediate member of the shoe. FIG. 5 is a perspective view showing the operation of the intermediate member.

The footwear 1 according to the present embodiment is a men's leather shoe in which a leather upper cover 3 is integrated with a rubber or resin sole (sole member) 2. And in the footwear 1 of the present embodiment, the intermediate member 5 is disposed on the inner bottom surface, that is, the portion in contact with the shoe sole 2.

The intermediate member 5 is formed by laminating a surface cloth 6 and a cushion layer 7 as shown in FIGS. Here, the surface cloth 6 is formed by arranging cotton threads and sewing the cotton threads in a vertical direction to form a cloth. Further, on the surface side of the surface cloth 6, a bundle 8 of nylon threads is sewn in a cross lattice shape. Furthermore, in the surface cloth 6,
Antibacterial agent and deodorant are impregnated.

The cushion layer 7 is formed by molding polyester fibers into a mat shape. In the cushion layer 7, the fibers are bound by a needle punching process,
It is also a kind of non-woven fabric. The thickness of the cushion layer 7 is 4 m
m to about 7 mm, more preferably about 6 mm.
The basis weight of the cushion layer 7 is 600 g / m ^{2 to} 900 g /
m ² , more preferably 700 g / m ^{2 to} 800 g /
m ² . The fiber is a polyester fiber as described above, and a low melting point (about 70 ° C.) and a normal melting point (about 170 °) are mixed. The mixing ratio of the low melting point polyester fiber and the normal melting point polyester is about 8: 2 to 9: 1, and the ratio of the low melting point polyester is high.

The cushion layer 7 is made of polyester fiber 10
Are arranged in a predetermined thickness and needle-punched to form a nonwoven fabric. After the cushion layer 7 is formed like a nonwoven fabric, hot air is blown from the front and back sides to slightly melt the front and back sides. Further, the fibers near the front surface and the back surface are thermally contracted by the action of hot air. Therefore, as shown in FIG.
The density of the polyester fiber 10 in the vicinity A of the front surface and the vicinity C of the back surface is higher than that in the middle. Therefore, the hardness of the front and back surfaces of the cushion layer 7 is higher than that of the middle layer B.

The vicinity A of the front surface and the vicinity C of the back surface of the cushion layer 7
Has a plate shape due to a combination of melting and heat shrinkage, has a reduced cushioning property, and has low flexibility. On the other hand, the middle B of the cushion layer 7 maintains the mat state, maintains the cushioning property, and has high flexibility. Intermediate member 5
Is manufactured by separately manufacturing a plate-shaped cushion layer 7 and a surface cloth 6 beforehand, gluing them together with an adhesive, and punching them into a predetermined shape by a known press.
The intermediate member 5 is often directly bonded to the shoe sole (sole member) 2, but may be separate from the shoe sole 2 like an insole.

Next, the operation of the footwear 1 of the present embodiment will be described. Immediately after manufacturing, the intermediate member 5 of the footwear 1 of the present embodiment has a flat plate shape as shown in FIG. However, when the user wears the footwear 1 of the present embodiment, a load is applied by the weight, and the intermediate member 5 is deformed along the unevenness of the sole. In the footwear 1 of the present embodiment, the portion near the surface A of the cushion layer 7 has a semi-plate shape, is hard, and has low flexibility, so that the vicinity A of the surface of the intermediate member 5 undergoes plastic deformation in a short time. Wake up. Therefore, in the footwear 1 of this embodiment, when the shoe is used for about 6 hours from the first time of wearing, the intermediate member 5 is plastically deformed into a curved shape along the shape of the sole of the user as shown in FIG. Disappears. On the other hand, the middle portion B of the cushion layer 7 maintains the cushioning property,
Road impact is reduced. Therefore, the footwear 1 of the present embodiment
Is comfortable and not tired of walking.

The above-described embodiment shows an example in which the present invention is applied to men's leather shoes. However, the present invention is naturally applicable to footwear such as cloth shoes and women's shoes, and furthermore, sandals and the like. It can also be applied to simple footwear. Further, the intermediate member 5 of the above-described embodiment can be sold separately from shoes as an insole such as shoes.

[0019]

In the footwear and insole for footwear according to the present invention, the intermediate member is plastically deformed by the weight of the user, and after a while from the start of use, the surface shape of the intermediate member matches the shape of the sole of the user. Therefore, the footwear of the present invention or the footwear equipped with the insole of the present invention has an effect that the intermediate member is adapted to the user's foot, is comfortable to wear, and is not tired.

[Brief description of the drawings]

FIG. 1 is a perspective sectional view of footwear according to the present invention.

FIG. 2 is a front view and a plan view of the footwear of FIG. 1;

FIG. 3 is an exploded perspective view showing a layer configuration of an intermediate member of the footwear of FIG. 1;

FIG. 4 is an enlarged sectional view conceptually showing a state of an intermediate member of the footwear of FIG. 1;

FIG. 5 is a perspective view showing the operation of the intermediate member of the shoe of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Footwear 2 Sole (sole member) 3 Top cover part 5 Intermediate member 10 Polyester fiber A Near the surface of the cushion layer B Middle of the cushion layer

Claims (4)

[Claims] 1. An article of footwear in which an intermediate member is disposed on an upper portion of a bottom member, the intermediate member has a cushion layer, the cushion layer has a surface hardness higher than that of a middle layer, and a surface flexibility. Footwear characterized by a lower than in the middle. 2. An article of footwear in which an intermediate member is arranged on an upper portion of a bottom member, the intermediate member has a mat-shaped cushion layer, and the cushion layer has a surface with a higher density than a middle part, and Footwear characterized in that the flexibility of the shoe is lower than that of the middle. 3. The footwear according to claim 1, wherein the intermediate member is obtained by subjecting a mat containing polyester fibers to needle punching treatment, and further heating the surface to harden the surface. . 4. An insole for footwear, characterized in that a mat containing polyester fibers is subjected to a needle punching treatment and further heated from the surface side to harden the surface, and the surface flexibility is lower than that of the middle. .