JP4702818B2 - Shoe insoles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to an insole material for a shoe that has improved flexibility in order to easily perform walking and running operations.
[0002]
[Prior art]
Conventionally, a hard material such as a water-resistant compression board has been generally used as an insole material for shoes, and in such an insole material, the toe portion is difficult to bend during walking and the like, so the applicant is not able to walk. A shoe technology as disclosed in JP-A-9-140409 has already been disclosed.
In this technique, the toe portion of the insole material is made of a relatively soft material, and a slit-like cut is made in a lateral direction in order to enhance flexibility at a portion corresponding to the root portion of the heel.
[0003]
[Problems to be solved by the invention]
However, the method of making only the toe portion of the insole material locally soft has the problem that the production of the insole material is complicated and costly, and the whole is relatively difficult to use such as a water-resistant compression board. When making a hard material, the slit width is narrow even if the slit c is provided by penetrating from the front surface to the back surface, for example, as shown in FIG. Then, as shown in FIG. 7 (b), the cut end surfaces t interfere with each other, and there is a limit to improvement in flexibility. For example, when the thickness of the insole material is about 1.0 to 1.2 mm, sufficient flexibility is obtained. There was a problem that it could not be obtained.
[0004]
Therefore, the present invention eliminates the trouble of making the toe portion of the insole material a soft material and has a cost-effective structure, and even if a relatively hard material is used, the toe portion has flexibility. The purpose is to make it sufficiently obtainable.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides an insole material disposed on the inside of a shoe sole, and a through hole having a predetermined width for enhancing flexibility at a location corresponding to a heel portion of a toe portion of the insole material. The groove was formed to be horizontally long, and the groove width of the through groove having the predetermined width was set to 100 to 500% of the thickness of the insole material .

[0006]
Thus, by forming a through groove having a groove width of 100 to 500% of the thickness of the insole material , sufficient bendability can be obtained without interference of the groove end face even in the inner direction of bending.
At this time, if the groove width is 100% or less, the cut end surface of the groove interferes even with a slight bend in the inner direction of bending, and the flexibility is limited. The function as an insole material such as a push-up prevention function and a foot protection function is not achieved, and the durability is inferior.
Here, it is preferable to provide a plurality of horizontally long through grooves. In this case, for example, one long groove may be provided in a plurality of lines, or a plurality of horizontally long through grooves are provided on one line. May be provided in a plurality of rows, or horizontally long through grooves may be provided in a staggered manner.
[0007]
In the present invention, the direction of the through groove is substantially parallel to a line connecting a portion corresponding to the base portion of the main hook and a portion corresponding to the base portion of the small hook.
[0008]
As described above, a line parallel to the line connecting the base part of the heel and the base part of the gavel is generally a bent part of the toe part of the foot, and can be easily walked and run.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the accompanying drawings.
Here, FIG. 1 is a sectional view showing an example of a shoe using the insole material according to the present invention, FIG. 2 is a plan view of the insole material, FIG. 3 is an enlarged sectional view showing a bent state of the insole material, FIG. 5 is a plan view showing each example of another form of the through groove, and FIG. 6 is an explanatory view for explaining a bent portion of the foot.
[0012]
The insole material of the shoe according to the present invention is such that even if a relatively hard material is used, the toe part is sufficiently flexible, and can be easily worn during walking or running, The structure is advantageous in terms of cost.
[0013]
That is, as shown in FIG. 1, a shoe 1 in which the insole material is used includes a shoe sole 2 in which an insole material 4 is laminated on an outsole 3 and a hood 5, and an upper portion of the insole material 4. Is provided with an insole material 6.
[0014]
The insole material 4 is formed of a relatively hard material such as a water-resistant compression board. As shown in FIG. 2, a plurality of horizontally long through grooves m are formed in the toe portion where flexibility is required. A column is provided.
[0015]
Here, as shown in FIG. 6, the bent portion of the toe portion is bent forward by L × (0.8 to 0.82) from the foot length measurement reference point P with respect to the foot length L. The diagonal line S connecting the point A and the bending point B that is approximately L × (0.7 to 0.72) ahead of the foot length measurement reference point P on the outer side is a reference. It coincides with the line connecting the root and the base of the gavel and corresponds to the root of each rib.
[0016]
Therefore, in the embodiment shown in FIG. 2, the direction of the through groove m is parallel to the direction of the diagonal line S, and a plurality of rows of through grooves m are provided in such a manner that the diagonal line S is included.
[0017]
Further, the groove width h of the through groove m is set to 100 to 500% with respect to the thickness of the insole material 4.
This is because when the groove width h is 100% or less with respect to the thickness of the insole material 4, the groove width h of the inner portion of the bending is crushed and sufficient flexibility cannot be obtained, and is 500% or more. This is because the gap becomes too large and the sole feels uncomfortable, and the function of preventing the push-up from the ground cannot be performed.
[0018]
By forming the through groove m as described above, the bendability of the insole material 4 is improved without interference of the cut end face in the inner side of the bending even when the through groove m is largely bent as shown in FIG.
[0019]
Such a very simple configuration that only forms the through-groove m can greatly improve the flexibility and is advantageous in terms of cost.
[0020]
By the way, as a form of the penetration groove | channel m, as shown in FIG. 4, you may make it into the form which spreads slightly radially toward the outer side from the inner side, and as shown in FIG. 5, it is short length. The through grooves m may be arranged in a line and a plurality of the through grooves m may be provided, or the short through grooves m may be arranged in a staggered pattern.
[0021]
These shapes and the like are made in consideration of the material, hardness, thickness, and the like of the insole material 4 so that the best flexibility is obtained and the durability and the like are not impaired.
[0022]
The present invention is not limited to the above embodiment. What has substantially the same configuration as the matters described in the claims of the present invention and exhibits the same operational effects belongs to the technical scope of the present invention.
For example, the type of shoes is arbitrary, and the material of the insole material 4 is also arbitrary.
The number of through grooves m is also arbitrary.
[0023]
As described above, the insole member shoe according to the present invention, the portion corresponding to趾付root portion of the toe portion, so as to form a through groove of a predetermined width to increase the flexibility, through the predetermined width Since the groove width of the groove is set to 100 to 500% of the thickness of the insole material , sufficient flexibility can be obtained without interfering with the end face of the groove even in the inner direction of bending.
In addition, sufficient flexibility can be obtained, the mechanism as an insole material such as a push-up prevention function from the ground and a foot protection function can be exhibited, and durability can be improved.
Also, if the direction of the through-groove is made approximately parallel to the line connecting the portion corresponding to the base portion of the heel and the portion corresponding to the base portion of the small heel, walking or running substantially coincides with the bending line of the foot. such as Ru can be done effortlessly.
[Brief description of the drawings]
1 is a cross-sectional view showing an example of a shoe using the insole material according to the present invention. FIG. 2 is a plan view of the insole material. FIG. 3 is an enlarged cross-sectional view showing a bent state of the insole material. FIG. 5 is a plan view showing another form of the through groove of the insole material. FIG. 6 is an explanatory view for explaining a bent portion of the foot. FIG. Explanatory drawing with cuts [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Shoes, 2 ... Sole, 4 ... Insole material, m ... Through groove, h ... Groove width.

Claims (2)

An insole material disposed on the inner side of the shoe sole, a through groove having a predetermined width for enhancing flexibility is formed horizontally in a portion corresponding to the heel portion of the toe portion of the insole material , The insole material for shoes, wherein the groove width of the through groove having the predetermined width is 100 to 500% of the thickness of the insole material.   The insole material for a shoe according to claim 1, wherein the direction of the through groove is substantially parallel to a line connecting a portion corresponding to the base portion of the heel and a portion corresponding to the base portion of the heel. Insole material for shoes.

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