JP2020185387A - Innersole, footwear equipped with the same, innersole intermediate product, and innersole intermediate product set - Google Patents

Abstract

To provide an innersole that can properly render a user such functions as correction of posture or acquirement of posture useful for improvement of athletic ability.SOLUTION: An innersole A is removably or unremovably installable to an article of footwear B. In a place corresponding respectively to a thenar 41 and a heel central part 42 of a footwear user's sole, there are provided holes 21, 22 or recesses in an internally hollow state with an upper opening, with the thenar 41 and the heel central part 42 made to sink into the holes 21, 22 or the recesses. Desirably, in a place corresponding to a center of a gravity position 43 in the sole when the user is in a standing posture of a neutral position, there is provided an upward elevation 3 which is made higher than a peripheral part.SELECTED DRAWING: Figure 2

Description

The present invention relates to an inner sole and a technique related to footwear including the inner sole.
Here, the inner sole referred to in the present invention is an insole that is used by being inserted into the shoe so that it can be taken out from the shoe, and an insole component that is fixed in the shoe so as to form the sole of the shoe. It is a concept including.

Specific examples of the inner sole are those described in Patent Documents 1 and 2.
The inner sole described in Patent Document 1 connects three parts corresponding to the heel, the ball of the thumb, and the ball of the little finger of the sole of the user among the sheet bodies formed in the shape of the sole of the foot of the person (user). The region is a concave portion, and the concave portion is filled in a non-concave shape using a shock absorbing material. According to such a configuration, most of the weight of the user is concentrated on the parts corresponding to the heel, the thumb ball, and the little finger ball, whereas these parts are constructed by using the shock absorber. Therefore, an impact dispersion effect is generated when the user walks, and the user's fatigue can be reduced.

On the other hand, in the inner sole described in Patent Document 2, holes are formed in three places corresponding to the heel, the ball of the thumb, and the ball of the little finger of the user's sole, and the holes are larger than the other parts. A support portion made of a hard member is fitted. According to such a configuration, by firmly supporting the above-mentioned three points of the user's foot, the vertical elastic movements of the medial vertical arch, the lateral vertical arch, and the lateral arch are not hindered. Helps to grow the arch of the foot.

However, in the past, there are problems to be solved as described below.

That is, as one of the functions of the footwear, for example, when standing upright or in a posture close to upright, or in a posture of various exercise postures, the body of the footwear user is put into a correct posture without unreasonable distortion or inclination. It is preferable that there is a function that enables the user to acquire an appropriate posture that helps to correct or improve athletic ability, and such needs are considered to be latent. On the other hand, the inner soles described in Patent Documents 1 and 2 described above are useful for reducing fatigue or nurturing the arch of the foot, but can obtain a function of acquiring a posture useful for posture correction function and improvement of athletic ability. is not.

Japanese Unexamined Patent Publication No. 10-42907 Japanese Patent No. 5227713

The present invention has been conceived under the above-mentioned circumstances, and it is possible to appropriately provide a function of correcting the posture of the user or a function of acquiring a posture useful for improving athletic ability. The challenge is to provide an inner sole, footwear equipped with it, an inner sole intermediate product, and an inner sole intermediate product set.

In order to solve the above problems, the following technical measures are taken in the present invention.

The inner sole provided by the first aspect of the present invention is an inner sole that is detachably or non-removably attached to the footwear, and is attached to the ball of the foot and the center of the heel of the user of the footwear, respectively. A hole or a recess is provided in the corresponding portion in an internal cavity state of the upper surface opening so that the ball of the finger and the center of the heel can be subducted into the hole or the recess. It is characterized by.
Here, the user of footwear is not a specific user who actually uses the footwear, but a person who has feet of a size suitable for the footwear and is assumed to be a general person who uses the footwear. The position of the ball of the thumb and the center of the heel is a position that is presumed to be the ball of the user of the footwear and the center of the heel based on the size and shape of the footwear or the inner sole.

According to such a configuration, the following effects can be obtained.
That is, when the user of the footwear is not in an unreasonable forward leaning posture or a backward leaning posture, and the weight of the user is distributed substantially evenly in the front and back of the foot, the ball of the foot of the user is used. Both the central part of the heel and the central part of the heel sink deeply into the hole or recess of the inner sole. Therefore, the user can appropriately feel that fact. In addition, if the user's weight acts on both the left and right feet almost evenly, the ball of the big toe and the center of the heel of the sole of the foot will sink deeply into the hole or recess in each of the left and right feet. Can be properly felt by the user. On the other hand, if the body is tilted to the left or right and the posture is incorrect (including the case where the center of gravity is displaced in the left-right direction due to the O-leg or X-leg), the ball of the thumb and the center of the heel. The portion does not sink deeply into the hole or recess, and the above-mentioned state is not felt or is difficult to feel.
For this reason, the user takes the correct posture by being aware of the posture in which the ball of the thumb and the center of the heel of the sole of the foot (left and right soles) feel deeply submerged in the above-mentioned hole or recess. It becomes possible to attach to. It can also be useful for correcting O-legs and X-legs.
Further, for example, in a sports posture, a posture in which the weight acts substantially evenly on the front and back of each of the left and right feet is advantageous in increasing the sense of stability of the lower body and in starting agile exercise. For this reason, it can be useful for improving the ability of sports. Of course, according to the inner sole of the present invention, when the weight of the user is biased to either the front or the back of the sole, for example, it can be detected, so that the weight is applied to the front side of the sole, for example. If it is preferable, it is possible to appropriately deal with such a situation, and it is also optimal for sports training.
In the inner soles of Patent Documents 1 and 2, a shock absorbing material or a hard member is fitted in a hole provided at a position corresponding to the ball of the foot and the heel, and the hole is substantially formed. Since it is said to have disappeared, even if the weight of the user acts on the ball and heel, the user cannot accurately sense that fact. The feeling of the sole of a person is not so sharp. Therefore, in Patent Documents 1 and 2, the above-mentioned action of the present invention cannot be obtained.

In the present invention, preferably, the hole or the recess provided at the portion corresponding to the thumb ball is a notch-shaped hole or recess that also opens on one side edge side of the inner sole. There is.

According to such a configuration, the following effects can be obtained.
That is, a part of the user's body weight acts appropriately on the thumb ball as compared with the case where the hole or recess provided at the portion corresponding to the thumb ball is formed in a non-notch shape. At that time, a part of the thumb ball is also sunk into the notch-shaped hole or the notch opening of the recess, so that the user of the footwear can more reliably detect the fact. .. Therefore, it is possible to eliminate or reduce mistakes in determining whether or not the user is in the correct posture.

In the present invention, preferably, the height corresponds to the position of the center of gravity of the sole of the foot when the user is in the standing posture in the neutral position (ideal standing posture without distortion or inclination), and the height is higher than that of the peripheral portion. An elevated upward ridge is provided.
Here, the position of the center of gravity of the sole of the foot when the user is in the upright posture in the neutral position is slightly forward and downward of the user's ankle in lateral view (see also the description described later with reference to FIG. 6). The position of the center of gravity of the sole of the foot is also estimated to be the position of the center of gravity of the sole of the footwear user based on the size and shape of the footwear or the inner sole, similar to the position of the ball of the foot and the center of the heel. It is the position to be done.

According to such a configuration, the following effects can be obtained.
That is, the position of the center of gravity of the sole of the foot when the user is in the standing position in the neutral position is a position separated from the center of the heel to the front side, and the arch of the foot that does not strongly contact the inner sole (sole arch). It is located near the lid) or arch, and the upward ridge is in the corresponding position. Therefore, when the user's standing posture is poor and the user is distorted or tilted in the front-rear direction, the left and right soles of the feet do not come into strong contact with the upwardly raised portion. On the other hand, when the user's standing posture is not distorted or tilted in the anteroposterior direction and the center of gravity of the user coincides with the upward ridge, the left and right soles of the foot and the upward ridge are in strong contact with each other. Can accurately sense the presence of the upward ridge. For this reason, the user stands up so that he / she feels that the soles of his / her left and right feet are in contact with the upward ridges, so that he / she can stand upright without distortion or inclination in the anteroposterior direction, especially in an upright or close posture. It will be possible to acquire the correct standing posture in.
The holes or recesses in the inner sole can also be useful in determining whether the user is in the correct standing posture, but the above-mentioned upward ridges are the soles of the feet when the correct standing posture is taken. Since it strongly abuts on the surface, it becomes easier to detect that fact more accurately. The hole or recess has a large function of correcting distortion or inclination in the left-right direction of the user, whereas the upward ridge has a large function of correcting distortion or inclination in the front-back direction. Therefore, it is more preferable to acquire a correct posture without distortion or inclination in any direction of front, back, left and right.

In the present invention, preferably, the upward ridge portion has a longer lateral width than the front-rear width, and the upper surface portion thereof increases in height from both ends in the front-rear width direction toward their central portions. Is a curved surface having a substantially arcuate side view that is inclined so that

According to such a configuration, since the upward ridge portion has a so-called horizontally long shape, the position of the center of gravity of the sole of the user is moved back and forth even if the posture of the user is slightly displaced in the left-right direction. If the position of the upward ridge is matched in the direction, the user can appropriately feel that the sole of the foot is strongly in contact with the upward ridge. Therefore, it is possible to make the upward ridge portion more useful as a portion for correcting the distortion and inclination of the user in the anteroposterior direction. Further, unlike the above configuration, when the upward ridge portion has, for example, an angular convex shape, there is a risk that pain may occur in the portion of the sole of the foot that comes into contact with the upward ridge portion. According to the above, since the upper surface portion of the upwardly raised portion has a predetermined curved surface, it comes into contact with the sole of the user's foot in a soft state, and the above-mentioned possibility can be appropriately avoided.
In the present invention, the upward ridge portion is more preferably softer than the other portion of the inner sole.

The footwear provided by the second aspect of the present invention is characterized by comprising an inner sole provided by the first aspect of the present invention.

With such a configuration, the same effect as described for the inner sole provided by the first aspect of the present invention can be obtained.

The inner sole intermediate product provided by the third aspect of the present invention has an inner sole outline for each of a plurality of types of foot sizes, and is cut along the inner sole outline to correspond to a desired foot size. An inner sole intermediate product manufactured as an inner sole, and a hole contour for forming a hole for sinking the ball in the region corresponding to the ball of the foot of the inner sole user. Lines are displayed for each of the plurality of types of foot sizes, and there are a plurality of holes or recesses for sinking the center of the heel at a portion corresponding to the center of the heel of the sole of the inner sole user. The feature is that it is provided in a state that is common to all types of foot sizes.

According to such a configuration, the inner sole intended by the present invention can be appropriately produced by cutting the inner sole intermediate product along the inner sole outer line and the hole contour line corresponding to the desired foot size. .. The produced inner sole is not limited to one type of foot size, and is convenient because it can correspond to a plurality of types of foot sizes.

The inner sole intermediate product set provided by the fourth aspect of the present invention has a pattern on which the inner sole outlines for each of a plurality of types of foot sizes are displayed, and a desired foot size by being cut along the pattern. It is an inner sole intermediate product set that includes an inner sole intermediate product manufactured as an inner sole corresponding to the above, and the pattern has a hole for sinking the ball of the foot of the inner sole user. The contour line of the hole to be formed is displayed for each of the plurality of types of foot sizes, and among the inner sole intermediate products, the portion corresponding to the central part of the heel of the sole of the inner sole user is the central part of the heel. It is characterized in that a hole or a recess for submerging the foot is provided in a state common to the plurality of types of foot sizes.

According to such a configuration, the inner sole intended by the present invention can be appropriately produced by cutting the inner sole intermediate product along the paper pattern. The produced inner sole can be adapted to a plurality of types of foot sizes, which is convenient.

Other features and advantages of the present invention will become more apparent from the following description of embodiments of the invention with reference to the accompanying drawings.

It is an exploded side perspective view which shows an example of the footwear provided with the inner sole which concerns on this invention. It is the schematic cross-sectional view of the state which installed the inner sole in the footwear of FIG. (A) is a plan view of the inner sole shown in FIGS. 1 and 2, and (b) is a sectional view taken along line IIIb-IIIb of (a). It is explanatory drawing of the sole of a person. (A) to (c) are explanatory views showing variations of a person's standing posture. It is explanatory drawing which shows the position of the center of gravity of the sole when a person is in the standing posture of a neutral position. It is a top view which shows another example of this invention. It is a side sectional view showing another example of this invention. It is a top view which shows another example of this invention. It is a top view which shows another example of this invention. (A) is a plan view showing another example of the present invention, and (b) is a sectional view taken along the line XIb-XIb of (a). It is sectional drawing which shows the other example of this invention. (A) is a plan view showing an example of an inner sole intermediate product according to the present invention, and (b) is a plan view showing another example of an inner sole manufactured from the inner sole intermediate product shown in (a). It is a top view which shows an example of the inner sole intermediate product set which concerns on this invention. It is explanatory drawing which shows the state which cuts the pattern of the inner sole intermediate product set shown in FIG. (A) is a plan view of the pattern shown in FIG. 15 overlaid on the inner sole intermediate product, and (b) is a cross-sectional view of (a).

Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

The inner sole A shown in FIGS. 1 and 2 is attached to the inside of a shoe B as an example of footwear so as to be removable. The inner sole A shown in FIGS. 1 and 2 is for the left side, and as the inner sole, a pair of left and right inner soles A and A'are used as shown in FIG. The inner sole A'for the right side is symmetrical with the inner sole A for the left side. For this reason, the description of the inner sole A for the left side will be described below, and the description of the inner sole A'for the right side will be omitted as appropriate.
Reference numeral 10 attached to the shoe B indicates an outer sole, and reference numeral 11 indicates an instep.

The inner sole A has an inner sole main body portion 2 and an upward ridge portion 3. The inner sole main body 2 is configured by using a single-layer sheet made of an appropriate material such as resin, cloth, leather, or artificial leather, or a plurality of types of sheets made of the same or different materials are laminated. It is composed of a plurality of layers of sheets joined together. The basic shape and size of the inner sole main body 2 correspond to the shape and size of the insole 12 of the shoe B, and by extension, the shape and size of the sole of the user of the shoe B.

The inner sole main body 2 is provided with a notched hole 21 and a non-notched hole 22. These holes 21 and 22 are not configured so that other members are fitted inside them, and are left in an internal hollow state in which the upper surface is open. In the sole 4 of the user (person) shown in FIG. 4, reference numeral 41 indicates a ball of the thumb, and reference numeral 42 indicates a central portion of the heel. Reference numeral 43 indicates the position of the center of gravity of the sole of the foot.

The hole 21 is formed at a position corresponding to the thumb ball 41. However, in the present embodiment, the hole 21 is formed as a notch-shaped hole in which the opening 21a is formed in the one side edge 23 (inner edge) of the inner sole main body 2. The hole portion 22 is a non-notched, substantially circular hole portion. The depth of the holes 21 and 22 (in the present embodiment, the same as the thickness t of the inner sole main body 2) is preferably about 2 mm or more, more preferably about 3 mm or more.

The upward ridge portion 3 is provided at a portion of the upper surface portion of the inner sole main body portion 2 corresponding to the position of the center of gravity of the sole of the foot shown in FIG. As shown in FIG. 6, the sole center of gravity position 43 is a position where the user's center of gravity line GL passes through the sole of the user's foot when the user (person) is in the standing position in the neutral position. In the lateral view, it is slightly forward and downward of the user's ankle. Therefore, in the inner sole A, the upward ridge portion 3 is provided at a position substantially the central portion in the left-right width direction in the region separated forward by an appropriate dimension from the hole portion 22 corresponding to the heel central portion 42. ..

As shown in FIG. 3A, for example, the upward ridge portion 3 has a substantially elliptical shape or a substantially oval shape in a plan view having a longer lateral width Lb than a front-rear width La. As shown in FIG. 3B, the upper surface portion 3a of the upward ridge portion 3 is a lateral view circle inclined so that the height gradually increases from both end portions in the front-rear width direction toward their central portions. It is an arc-shaped curved surface. The maximum height H of the upward ridge portion 3 is, for example, about 4 to 8 mm, but is not limited to this. Preferably, the upward ridge portion 3 is configured by using a separate member softer than the inner sole main body portion 2 and is joined to the inner sole main body portion 2. As the joining means, for example, a means such as adhesion using an adhesive or sewing (sewing using a thread) can be used, but of course, the joining means is not limited to these. As will be described later, the upward ridge portion 3 can be integrally formed with the inner sole main body portion 2.

Next, the action of the above-mentioned inner sole A will be described.

First, if the user of shoe B is not in an unreasonable forward or backward leaning posture and the weight of the user is distributed substantially evenly in the front and back of the foot, the mother's toes of the user's foot Both the ball 41 and the central heel 42 sink deep into the holes 21 and 22 of the inner sole A or A'. Therefore, the user can appropriately feel that fact. In addition, when the weight of the user acts almost evenly on both the left and right feet, the ball 41 and the central part 42 of the heel sink deeply into the holes 21 and 22 in each of the left and right inner soles A and A'. The user can properly feel that fact. In particular, in the present embodiment, since the hole 21 has an opening 21a that opens on one side edge 23 side of the inner soles A and A', the thumb ball 41 sinks into the position of the hole 21. In that case, the user can easily feel that fact more appropriately.

On the other hand, as shown in FIGS. 5 (b) and 5 (c), if the user's body is distorted or tilted to the left or right and the user's posture is incorrect, the left and right feet At least one ball 41 and the central heel 42 do not sink deep into the holes 21 and 22. For this reason, it is not possible to accurately feel the state in which the ball 41 and the central part of the heel 42 are deeply sunk in the holes 21 and 22 on the left and right soles of the foot. Further, when the user is unreasonably tilted forward, only the ball 41 of the thumb sinks deeply into the hole 21, and although this can be felt, the central part 42 of the heel is deep inside the hole 22. It doesn't sink and you can't feel it. On the contrary, when the user is unreasonably tilted backward, only the central part 42 of the heel sinks deeply into the hole 22 and the thumb ball 41 can feel that fact. It does not sink deeply into the hole 21, and that fact cannot be felt.

For this reason, the user should take a posture in which the ball 41 and the central part of the heel 42 are deeply submerged in the holes 21 and 22 and can be felt to that effect on both the left and right feet of the user. This makes it possible to acquire the correct posture. It is also useful for correcting O-legs and X-legs.
When playing sports, if you acquire the correct posture with no distortion or tilt in the front, back, left, or right, it will be easier to exert power instantly from this posture, and it will be possible to improve your athletic ability. It is also useful for everything. Further, depending on the type of exercise, for example, it may be preferable to temporarily put the weight on the front side of the sole of the foot. In such a case, the ball 41 of the thumb sinks greatly into the hole 21. It is possible to obtain such a posture by training the user so that the central portion 42 of the heel is crowded and the central portion 42 of the heel does not sink significantly into the hole portion 22. The inner sole A of the present embodiment is also optimal for training such exercises.

On the other hand, when the user takes an upright posture or an upright posture close to this, if there is no distortion or inclination (the state shown in FIG. 6), the position where the center of gravity line GL of the user coincides with the upward ridge portion 3. It becomes. Therefore, the sole of the user's foot and the upwardly raised portion 3 are in strong contact with each other, and the user accurately feels that fact. On the other hand, when the user's standing posture is poor, for example, when the user is distorted or tilted in the front-rear direction, the sole of the foot and the upwardly raised portion 3 do not come into strong contact with each other. Since the upward ridge 3 is raised to a higher height than the other parts of the inner soles A and A', it abuts on the sole of the foot, but the area of the sole where the upward ridge 3 abuts is the arch. (Arches of the foot) or a region close to this, which is essentially a region that is slightly floating from the upper surface of the inner soles A and A'. Therefore, although the upward ridge 3 is in contact with the sole of the foot, if the upward ridge 3 and the center of gravity line GL of the user do not match, the user should accurately feel the upward ridge 3. There is no.
For this reason, the user can acquire a correct upright posture without distortion or inclination or an upright posture close to upright by standing up so that the sole of the foot touches the upward ridge portion 3. Become.

Since the upward ridge portion 3 has a horizontally long shape having a longer left-right width Lb than the front-rear width La, even if the user's posture is slightly displaced in the left-right direction, the user's foot If the position of the center of gravity of the back 43 coincides with the position of the upward ridge 3 in the front-rear direction, the user will strongly abut the sole of the foot on the upward ridge 3, and it is possible to accurately detect that fact. It becomes. Therefore, the upward ridge portion 3 can be made more useful as a portion for correcting the distortion and inclination of the user in the front-rear direction. Further, the upward ridge portion 3 has a substantially elliptical shape or a substantially oval shape in a plan view, and the upper surface portion 3a has a curved surface in a substantially arc shape in a side view, so that the entire shape is smooth. It is also possible to prevent pain or the like from occurring when the raised portion 3 strongly abuts on the sole of the foot. When the upward ridge portion 3 is made of a soft member, the effect can be further enhanced.

7 to 16 show other embodiments of the present invention. In these figures, elements that are the same as or similar to those of the embodiment are designated by the same reference numerals as those of the embodiment, and duplicate description will be omitted.

In the inner soles A1 and A1'shown in FIG. 7, the hole 21 provided at the position corresponding to the ball 41 of the sole of the user's foot is formed as a non-notched substantially circular hole like the hole 22. It is formed.

According to such a configuration, the presence of the hole 21 on the sole of the foot is slightly less likely to be felt as compared with the configuration of the embodiment in which the hole 21 is formed in a notch shape, but the action intended by the present invention. It is possible to obtain.
The hole 22 may be formed in a notched shape, but is preferably in a non-notched shape. When the hole 22 is formed in a notch shape, it becomes difficult for the user to feel whether or not the heel central portion 42 is located at the center of the hole 22 as compared with the case where the hole 22 is formed in a non-notch shape. Because.

In the inner sole A2 shown in FIG. 8, the inner sole main body 2 is a resin molded product, and the upward ridge 3A is integrally formed with the inner sole main body 2.
According to such a configuration, it is possible to reduce the manufacturing cost.

The inner soles A3 and A3'shown in FIG. 9 and the inner soles A4 and A4'shown in FIG. 10 are configured so that the upward ridge portion 3 is not provided. In the present invention, such a configuration is also possible.

FIG. 11 shows sandals (footwear) B1 and B1'provided with a belt portion 14 for fastening the instep on the upper surface side of the sole 13 (bottom portion). The sole 13 (bottom portion) is composed of an inner sole A and an outer sole 14 on the lower surface side thereof, and the inner sole A is adhered to the outer sole 14 and is provided in a non-removable state. The inner sole A is provided with holes 21 and 22, and an upward ridge portion 3.
Even when the sandals B1 and B1'of this embodiment are used, it is possible to obtain the posture correction function of the user as in the above-described embodiment. As shown in the present embodiment, the inner sole according to the present invention may be provided in a state in which it cannot be removed from the footwear.

In the sandals B2 shown in FIG. 12, the sole has a single-layer structure composed of only the inner sole A5, and the lower surface side region of the inner sole A5 corresponds to the outer sole. Here, in the present embodiment, recesses 21A and 22A are provided at locations corresponding to the ball 41 of the sole of the foot and the central portion 42 of the heel. The recesses 21A and 22A have an internal cavity with an open upper surface, and the depth thereof is, for example, about 2 mm or more, preferably about 3 mm or more, as in the holes 21 and 22 described above.

According to the present embodiment, when the user of the sandals B2 takes the correct posture, the ball 41 of the sole of the foot and the central portion 42 of the heel sink deeply into the recesses 21A and 22A. It is possible to obtain the same operation as in the case where the holes 21 and 22 of the form are provided.
As can be understood from the present embodiment, in the present invention, it is possible to provide a recess instead of the hole in the portion corresponding to the ball of the thumb and the central portion of the heel.

FIG. 13 shows an inner sole intermediate product A ". This inner sole intermediate product A" includes an inner sole main body 2 "that is larger in size than the original inner sole (inner sole A described later). On the toe side of the part 2 ", a plurality of inner sole outlines Lc having a foot size of, for example, 25 to 28 cm, for example, every 10 mm or every 5 mm are displayed. In addition, corresponding to such a configuration, there are also a plurality of hole contour lines Ld indicating the shape and position of the notch-shaped hole 21 for the ball 41, for example, when the foot size is 25 to 28 cm. It is displayed.
On the other hand, on the heel side of the inner sole main body 2 ", an upward ridge 3 and a hole 22 for the heel center 42 are provided. The upward ridge 3 and the hole 22 are provided with a foot. If the size has a width of about 25 to 28 cm, these positions and sizes can be shared.

According to the present embodiment, the inner sole main body 2 ”is cut along the inner sole outer line Lc corresponding to the desired foot size using scissors 9, and as shown in FIG. 13 (b), it is desired. An inner sole A suitable for the foot size is obtained. At that time, the notch-shaped hole 21 corresponding to the ball 41 is formed by cutting along the hole contour line Ld corresponding to the desired foot size. It can be provided in an appropriate position and shape.
According to the inner sole intermediate product A of the present embodiment, it is convenient because it can be widely applied to various foot sizes and a preferable inner sole A can be manufactured and used.

The inner sole intermediate product set S shown in FIG. 14 includes an inner sole intermediate product A "and a paper pattern 8. The inner sole intermediate product A" is provided with an upward ridge portion 3 and a hole portion 22, and is large in size. The inner sole main body 2 "is provided. Although the inner sole outer line Lc and the hole contour line Ld shown in FIG. 13 are not directly displayed on the inner sole main body 2", these inner sole outer lines Lc are provided. And the hole contour line Ld is displayed on the pattern 8. Reference numeral 80 is a margin outer frame portion surrounding the paper pattern 8, and items that cannot be displayed on the paper pattern 8 can be appropriately printed and displayed on this portion.

FIG. 15 shows a state in which the paper pattern 8 is cut out from the outer frame portion 80 or cut out, and then cut along the inner sole outer line Lc and the hole contour line Ld corresponding to the desired foot size. A notch hole 21 ”is formed in the paper pattern 8.
As shown in FIG. 16, the above-mentioned paper pattern 8 is superposed on the inner sole main body 2 "of the inner sole intermediate product A". In this state, if the inner sole main body 2 "is cut along the outer shape of the paper pattern 8, it is possible to produce the inner sole A similar to the case described with reference to FIG.

In the present embodiment, the paper pattern 8 is used, but according to such a method, it is not necessary to display the inner sole outer line Lc and the hole contour line Ld on the inner sole main body 2 "itself. Can be easily printed on the paper pattern 8, and is suitable when the inner sole main body 2 "is a material that is difficult to print.

The present invention is not limited to the contents of the above-described embodiments. The specific configuration of each part of the inner sole according to the present invention, the footwear provided with the inner sole, the inner sole intermediate product, and the inner sole intermediate product set can be variously redesigned within the scope of the present invention.

The size of the hole or recess corresponding to the ball of the foot and the center of the heel (opening width or diameter, depth, etc.) is such that the ball of the foot and the center of the heel can sink. The specific numerical value is not limited. It suffices if the hole or the recess is provided in an internal hollow state of the upper surface opening and has an appropriate opening width (or opening diameter) and depth.
The specific size, shape, material, etc. of the upward ridge portion referred to in the present invention are also not limited.

In the above-described embodiment, shoes and sandals are exemplified as footwear, but the type of footwear is not limited to this. The present invention can be applied not only to general shoes and sandals (sandals), but also to, for example, boots, clogs, various special shoes for sports and work (labor), and inner soles for them. ..
It is also possible to provide an inner sole with an uneven portion for preventing slipping of the sole of the foot.

A, A'Innasol A1 to A5, A1', A3'A4'Innasol A "Innasol Intermediate B Shoes (footwear)
B1, B1', B2 sandals (footwear)
Lc Inner sole outline Ld Hole contour line S Inner sole intermediate product set 2 Inner sole main body 21 and 22 Holes 21A, 22A Recesses 3, 3A Upward ridge 3a Top surface (of upward ridge)
41 Ball of thumb 42 Central heel 43 Position of center of gravity of sole 8 Pattern

Claims (7)

An inner sole that can be attached to footwear in a removable or non-removable state.
A hole or a recess is provided in a portion corresponding to each of the ball of the foot and the center of the heel of the user of the footwear in an internal cavity state of the upper surface opening, and the ball of the foot and the center of the heel are provided. An inner sole characterized in that it can be submerged in the hole or the recess. The inner sole according to claim 1.
The hole or recess provided at a position corresponding to the thumb ball is an inner sole having a notch-shaped hole or recess that is also opened on one side edge side of the inner sole. The inner sole according to claim 1 or 2.
An inner sole in which an upward ridge portion having a height higher than that of the peripheral portion is provided at a position corresponding to the position of the center of gravity of the sole of the foot when the user is in the upright posture in the neutral position. The inner sole according to claim 3.
The upward ridge has a longer lateral width than the front-rear width, and the upper surface thereof is inclined so that the height gradually increases from both ends in the front-rear width direction toward their central portions. Inner sole, which is a curved surface with a substantially arc-shaped side view. Footwear comprising the inner sole according to any one of claims 1 to 4. An inner sole intermediate product that is produced as an inner sole corresponding to a desired foot size by displaying an inner sole outline for each of a plurality of types of foot sizes and cutting along the inner sole outline.
In the area corresponding to the ball of the foot of the inner sole user, a hole contour line for forming a hole for sinking the ball of the thumb is displayed for each of the plurality of types of foot sizes. And
At the location corresponding to the central part of the heel of the sole of the inner sole user, a hole or a recess for sinking the central part of the heel is provided in a state common to the plurality of types of foot sizes. An inner sole intermediate product that is characteristic. A paper pattern showing the inner sole outline for each of multiple foot sizes,
An inner sole intermediate product that is produced as an inner sole corresponding to the desired foot size by cutting along this pattern, and
It is an inner sole intermediate set that has
On the paper pattern, hole contour lines for forming a hole for sinking the ball of the thumb of the inner sole user are displayed for each of the plurality of types of foot sizes.
Among the inner sole intermediate products, in the portion corresponding to the central part of the heel of the sole of the inner sole user, a hole or a recess for sinking the central part of the heel is common to the plurality of types of foot sizes. Inner sole intermediate product set, which is characterized by being provided in.

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