JPH10323202A - Shoe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shoe superior in antiskid performance between a foot and the shoe main body and superior in a healing effect of fatigue by an appropriate stimulus by transplanting stiff and erect bristles, which satisfy a specific relation of an aspect ratio and fiber length, at least, in the bottom part in the inside of the shoe. SOLUTION: In shoes suited to running shoes such as golf shoes and boots, erect bristles (flexible stiff fibers) 2 constituted of stiff but flexible materials by an electrostatic bristle straitening method are used for the inside bottom parts 1 of the shoes. A synergetic effect produced by mutual engagement between socks worn by a user and an erect bristle part 2 inside the shoes provides superior antiskid performance. Such a stiff fiber is used that, when the single thread diameter of an erect pile and the pile length are set to D (mm) and L (mm) respectively, it satisfies the aspect ratio: 20<L/D<3.5 and the fiber length: 0.1<L<3.5. A polyamide fiber satisfying the flexibility and the stiffness is preferable to be used as the stiff fiber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoe excellent in slipperiness between a foot and a shoe body and excellent in healing fatigue by moderate stimulation. More specifically, the shoes of the present invention are preferably used for various sports shoes such as golf shoes, skate shoes, ski shoes, boots, and the like.

[0002]

2. Description of the Related Art Conventionally, it has been extremely difficult to prevent displacement of a foot in a shoe. Known methods include tightly tying shoelaces or the like, injecting air or resin into the shoes to adjust the shoes themselves to the feet, or protruding from the bottom of the socks as known in Japanese Utility Model Application Laid-Open No. 63-183206. A method of forming a portion to prevent slippage and the like are known.

[0003]

[Problems to be solved by the invention]

[0004] However, the method of tightly tightening shoelaces or the like or injecting air or resin into the shoes to fit the shoes themselves to the feet sometimes causes damage such as pain to the feet or makes it easy to make blisters after long-term wear. There were drawbacks. On the other hand, the method of forming a projection on the bottom of the sock to prevent slippage has a drawback that the slip resistance is not sufficient. That is, in the related art, there is a limit in obtaining sufficient slip resistance while suppressing damage to the foot. The present invention has been made in view of the background of the related art, and has as its object to provide a shoe that is excellent in slipperiness between a foot and a shoe main body and has an excellent effect of healing fatigue by moderate stimulation.

A shoe according to the present invention is characterized in that at least a bottom portion of the inside of the shoe is implanted with rigid naps having the following relationship.

[0005] Assuming that the single thread diameter D (mm) and the pile length L (mm) of the napped pile are: Aspect ratio: 20 <L / D <300 Fiber length: 0.1 <L <3.5

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION As a result of intensive studies on shoes without the above-mentioned disadvantages, the present inventors have demonstrated a very unique non-slip property on the inner bottom of the shoe by utilizing the characteristics of a specific stiff standing nap. That is, they have arrived at the next invention. In other words, instead of using generally bristles themselves, e.g., raised hairs such as carbon fibers, they have rigidity, but are made of a flexible material, and are therefore hard to be broken and are not easily fibrillated. It has been found that a material is preferably used, and that the flexible bristles are at least partially densely packed to increase the density, thereby providing a highly durable non-slip property.

FIG. 1 is a cross-sectional view of a shoe according to the present invention, wherein 1 denotes an inner bottom portion of the shoe, 2 denotes a raised portion, and 3 denotes a shoe body.

The unique non-slip property of the shoe of the present invention has the rigidity described above, but the use of nap (a kind of flexible and rigid fiber) made of a flexible material means that It seems that the sock worn and the napped portion inside the shoe engage with each other to produce a synergistic effect.

[0009] Such flexible rigid fibers include:
Polyamide-based fibers, PPS-based fibers, polyester-based fibers, polyolefin-based fibers, and the like can be used. Here, as the polyamide-based fiber, it is preferable to use an aramid-based fiber, and among them, a flexible material. It is particularly preferable to use a polyamide fiber satisfying both flexibility and rigidity. Here, the rigidity or rigidity is preferably a Young's modulus of 500
Fibers of 0 kg / mm ² or more are preferably used.

If the aspect ratio of the nap pile of such specific stiff fibers is too large, the stiffness of each nap fiber is not sufficient, and a high slipping effect cannot be obtained. Also,
The smaller the aspect ratio, the smaller the fiber stiffness improves, but the degree of engagement with the socks tends to decrease, so this appropriate range is also related to the fiber length, and the appropriate range of both was studied. As a result, when the single thread diameter D (mm) and the pile length L (mm) of the napped pile are those satisfying the aspect ratio: 20 <L / D <300, the fiber length: 0.1 <L <3.5, It was found that the above two characteristics were good.

The raised position of the inner bottom of the shoe may be full or partial, and even if it is intermittent, excellent anti-slipping properties can be obtained. Density. Moreover, further such napped, for example, and preferably 50,000 / cm ² or more, more preferably 80,000 / cm ² or more, particularly preferably 100,000 / cm ² or more densely flocked, hardly collapse, An article having excellent durability can be provided. Further, such a group of high-density naps can be implanted partially or even in a pattern.

More preferably, the shoes of the present invention include:
It has been found that a structure having at least two or more discontinuous concave portions on its inner bottom portion and having raised hairs only in the concave portions greatly improves the detachability of shoes while maintaining the slip resistance. .

FIG. 2 is a sectional view of another shoe according to the present invention, in which 2 denotes a raised portion, 3 denotes a shoe body, and 4 denotes a portion of the inner bottom of the shoe which is not raised. FIG. 3 is a diagram when FIG. 2 is viewed from above.

The height of the nap and the depth of the recess need not necessarily be the same. If the napped hair is lower, the detachability is extremely improved, and the weight is increased during use, so that the socks can sufficiently bite into the napped hair to exhibit excellent slipperiness. Of course, the higher the height of the nap, the better the slipperiness,
The detachability tends to be slightly inferior. As described above, the height of the nap and the depth of the concave portion may be appropriately determined according to the frequency of attachment and detachment of the shoes to be used and the required degree of slipperiness.

[0015]

The present invention will be described in more detail with reference to the following examples.

Example 1 A paste made of acrylic resin was applied to the entire bottom surface of a commercially available golf shoe at 80 g / m ² , and the Young's modulus was 10,000 kg / m ^2.
mm ^2, single fiber fineness 2.0 denier, fiber length 0.5 mm, a pile consisting of nylon yarn having an aspect ratio 32 to about 1100
Electrostatic flocking was performed to a density of 00 / cm ² . The resulting shoes are shown in FIGS. When I played golf with these shoes, I was able to swing accurately without any subtle slippage in the shoes when addressing.

Example 2 The same commercially available golf shoes as used in Example 1 were coated with a paste of acrylic resin at 80 g / m ² over the entire inner bottom surface, and then had a Young's modulus of 15,000 kg / mm ² and a fineness of single yarn. 1.5
A pile of Kevlar yarn having a denier of 0.5 mm in fiber length and an aspect ratio of 41 was electrostatically implanted at a density of about 110,000 yarns / cm ² . When playing golf with these shoes, it was possible to perform accurate swings without delicate displacement of the feet in the shoes at the time of addressing as in Example 1. Furthermore, the set-up portion after use was extremely small in set compared to Example 1, and the durability was excellent.

Example 3 The same commercially available golf shoes as used in Example 1 were peeled off to form discontinuous recesses. The depth of the recess is 0.7mm
And 80 g of paste made of acrylic resin in the concave portion
/ M ² was coated, the Young's modulus 17000kg / mm ^2, single fiber fineness 1.5 denier, fiber length 0.5 mm, an aspect ratio of 4
About 110,000 piles / cm of one Kevlar thread
Electrostatic flocking was performed at a density of ² . The results are shown in FIGS.
When playing golf with these shoes, it was possible to perform accurate swings without delicate displacement of the feet in the shoes at the time of addressing as in Example 1. Furthermore, in Example 1, it took a long time to put on and take off the shoes, and the golf shoes were extremely easy and comfortable to use.

Example 4 A paste made of acrylic resin was applied to the heel half of the inner bottom surface of a commercially available rubber boots at 80 g / m ² , and the Young's modulus was 12
000 kg / mm ² , fineness of single yarn 2.0 denier, fiber length 0.
A pile made of nylon yarn of 5 mm and an aspect ratio of 32 was electrostatically implanted at a density of about 110,000 threads / cm ² . When I did the civil engineering work with these boots, I could work safely for a long time without slipping in my shoes.

Comparative Example 1 The same golf play as in Example 1 was carried out without processing the same commercially available golf shoes as in Example 1. I tied up my shoelaces in advance because my feet were slippery in my shoes, but as the play extended, my feet hurt and I could blister.
From comparison with Example 1, it can be seen that the shoe of the present invention has excellent slip resistance without damaging the foot.

Comparative Example 2 The same civil engineering work as in Example 4 was carried out without processing the same commercially available rubber boots as in Example 4. The longer the work, the more sweat I got in my shoes and my feet became very slippery in my shoes. As a result, it became difficult for the work to work, and the work efficiency deteriorated. Further, when trying to climb on the scaffold in this state, the balance was easily lost, which was extremely dangerous. From the comparison with Example 4, it can be seen that the shoe of the present invention is extremely excellent in slipperiness.

[0022]

The shoes with raised hairs according to the present invention can provide shoes with extremely excellent non-slip properties. By applying this method, it is possible to improve various types of work shoes and sports shoes in which the displacement of the foot in the shoe is a problem.

According to the shoe of the present invention, since it is excellent in the slipperiness between the foot and the shoe main body, and also excellent in the effect of healing fatigue by moderate stimulus, it can be stopped in play or crossed in jumping. It is excellent in performance, has the advantage of stable exercise and work, and is very preferably used for various sports shoes such as golf shoes, skate shoes, ski shoes, work shoes, boots, etc. can do.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a shoe obtained in Example 1. .

FIG. 2 is a sectional view of a shoe obtained in Example 3.

FIG. 3 is a top view of the shoe obtained in Example 3.

[Description of Signs] 1: Inside bottom of shoe 2: Upholstered part 3: Shoe body 4: Hairless part (non-flocked part)

Claims (6)

[Claims] 1. A shoe characterized by the fact that rigid raised hairs having the following relationship are planted at least on the bottom of the inside of the shoe. Single thread diameter D (mm), pile length L (mm)
Aspect ratio: 20 <L / D <300 Fiber length: 0.1 <L <3.5 2. The shoe according to claim 1, wherein said flocking is formed by electrostatic flocking. 3. The shoe according to claim 1, wherein the bottom of the inside of the shoe has at least two or more discontinuous concave portions, and only the concave portions have nap. 4. The shoe according to claim 1, wherein the nap contains fibers having a Young's modulus of 5000 kg / mm ² or more. 5. The nap is made of at least two kinds of fibers, and the fiber having the longest fiber length has a Young's modulus of 500.
5. The shoe according to claim 1, which has a rigidity of 0 kg / mm ² or more. 6. The shoe according to claim 1, wherein said raised hair contains a polyamide fiber.