WO2020225928A1

WO2020225928A1 - Insole and shoe having same

Info

Publication number: WO2020225928A1
Application number: PCT/JP2019/026099
Authority: WO
Inventors: 正彦阿立
Original assignee: 正彦阿立
Priority date: 2019-05-09
Filing date: 2019-07-01
Publication date: 2020-11-12
Also published as: JP2020185387A

Abstract

In this insole (A) which is attached to a footwear (B) in a detachable or non-detachable state, holes (21, 22) or recesses are provided in an inner cavity state with an open upper surface at places respectively corresponding to the thumb ball (41) of the sole and the heel middle section (42) of a footwear user, and the thumb ball (41) and the heel middle section (42) can be sunk into the holes (21, 22) or the recesses. Preferably, an upwardly raised section (3) having a greater height than a surrounding section is provided at a place corresponding to the position (43) of center of gravity on the sole when the user is in a standing posture of a neutral position. Accordingly, it is possible to appropriately provide a function to correct the posture of a user and to make the user acquire a posture useful for improving exercise capability.

Description

Inner sole and footwear with it

The present invention relates to an inner sole and 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 area is a concave portion, and a shock absorbing material is fitted in this concave portion. According to such a configuration, most of the weight of the user is concentrated on the parts of the seat body corresponding to the heel, the mother's finger ball, and the little finger ball, whereas the above-mentioned parts are affected. Since the shock absorbing material is present, a shock dispersing 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 by the support portion, the medial vertical arch, the lateral vertical arch, and the lateral arch can be elastically moved in the vertical direction. It is unobstructed and helps to develop 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 to have a function of correcting and a function of acquiring a posture useful for improving athletic ability, and it is considered that such a need is 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 do not have a posture correction function and a function for acquiring a posture useful for improving athletic ability. ..

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

The object of 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 and a function of acquiring a posture useful for improving athletic ability. The purpose is to provide an inner sole and footwear equipped with it.

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 can be attached to the footwear in a removable or non-removable state, and among the inner soles, the ball and heel of the sole of the foot of the user of the footwear. A hole or a recess is provided in a portion corresponding to each of the central portions in an internal hollow state of the upper surface opening, and the ball of the foot and the central portion of the heel are subducted into the hole or the recess. Is characterized by being possible.
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 positions of the ball of the thumb and the center of the heel are 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.

Preferably, the hole or the recess provided at the portion corresponding to the ball of the thumb is a notch-shaped hole or recess in which an opening is formed at one side edge of the inner sole.

Preferably, the inner sole according to the present invention corresponds to the position of the center of gravity of the sole of the upper surface of the inner sole when the user is in a neutral position standing posture (ideal standing posture without distortion or inclination). It is further provided with an upward ridge that is provided at a location where the ridge is to be formed and is higher than the peripheral portion.
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.

Preferably, the upward ridge portion has a longer lateral width than the front-rear width, and the upper surface portion thereof gradually increases in height from both ends in the front-rear width direction toward their central portions. It is a curved surface that is substantially arcuate in side view.

Preferably, the upward ridge is located on the front side of the hole or recess provided at a portion of the inner sole corresponding to the central portion of the heel, and is located at the central portion in the left-right width direction of the inner sole. doing.

Preferably, the upward ridge portion is formed by using a member softer than the sheet-shaped inner sole main body portion forming the main portion of the inner sole.

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

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

It is an exploded 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. 3A is a plan view of the inner sole shown in FIGS. 1 and 2, and FIG. 3B is a sectional view taken along line IIIB-IIIB of FIG. 3A. It is explanatory drawing of the sole of a person. 5A to 5C are explanatory views showing variations in the standing posture of a person. 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 the other example of this invention. It is a side sectional view showing another example of this invention. It is a top view which shows the other example of this invention. It is a top view which shows the other example of this invention. 11A is a plan view showing another example of the present invention, and FIG. 11B is a sectional view taken along line XIB-XIB of FIG. 11A. It is sectional drawing which shows the other example of this invention.

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 put in and taken out, and is for the left side. As shown in FIG. 3A, an inner sole A'for the right side paired with the inner sole A is also prepared. The pair of left and right inner soles A and A'are symmetrical. Therefore, in the following description, the inner sole A for the left side will be described, 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 includes a sheet-shaped inner sole main body 2 that forms the main part of the inner sole A, and an upward ridge 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 notch-shaped hole 21 and a non-notch-shaped hole 22. These

holes

21 and 22 are not configured in which other members are fitted inside, and remain 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, 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 dimension 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 posture 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 curved surface having a substantially arcuate side view that is inclined so that the height gradually increases from both end portions in the front-rear width direction toward their central portions. Is. 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, means such as adhesion using an adhesive and sewing using a sewing 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. 5B and 5C, when the user's body is distorted or tilted to the left or right and the posture of the user is incorrect, the mother of at least one of the left and right feet The finger ball 41 and the central heel portion 42 do not sink deeply 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 it is possible to feel that fact, but the ball 41 of the thumb is 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 subducted into the

holes

21 and 22 and can be felt to that effect on both the left and right feet of the user. Therefore, it becomes possible to acquire the correct posture. That is, the posture correction function of the user can be obtained. It is also useful for correcting the user's O-legs and X-legs.

In various sports postures, there is no distortion or tilt in the front, back, left, or right, and the posture in which the weight acts almost evenly in the front and back of each of the left and right feet (correct posture) increases the sense of stability of the lower body. It may be advantageous to start an agile exercise. On the other hand, if the inner soles A and A'are used, the user can acquire the above-mentioned correct posture. That is, the inner soles A and A'also have a function of acquiring a posture useful for improving athletic ability.

Also, depending on the type of sport, for example, it may be preferable to temporarily put your weight on the front side of the sole. In such a case, the user trains the ball 41 so that the ball 41 does not sink significantly into the hole 21 and the central heel 42 does not sink significantly into the hole 22. It is possible to acquire a good posture. Therefore, the inner soles A and A'of this embodiment are also suitable for training in such sports.

In the inner sole described in 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 described. The part has virtually disappeared. Therefore, even if the weight of the user acts on the ball of the thumb and the heel, the user cannot accurately feel that fact. The feeling of the sole of a person is not so sharp. Therefore, in Patent Documents 1 and 2, the effects described for the inner soles A and A'of the present embodiment cannot be obtained.

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. The

holes

21 and 22 can also be useful for determining whether or not the user is in the correct standing posture, but the upwardly raised portion 3 is strong against the sole of the foot when the correct standing posture is taken. Since they come into contact with each other, it becomes easier to detect that fact more accurately. The

holes

21 and 22 have a large function of correcting distortion and inclination in the left-right direction of the user, whereas the upward ridge portion 3 has a large function of correcting distortion and inclination in the front-back direction. Therefore, the configuration provided with the upwardly raised portion 3 is more preferable for the user to acquire a correct posture without distortion or inclination in any of the front-back and left-right directions.

As described above, the upward ridge portion 3 has a horizontally long shape having a lateral width Lb rather than a front-rear width La. Therefore, even if the posture of the user is slightly displaced in the left-right direction, if the position 43 of the center of gravity of the sole of the user coincides with the position of the upward ridge portion 3 in the front-rear direction, the user can use the position. The sole of the foot strongly abuts on the upwardly raised portion 3, and it is possible to accurately detect that fact. 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 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 12 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 operation intended by the present invention. It is possible to obtain.

On the other hand, 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.

FIGS. 11A and 11B show 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). 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.

The present invention is not limited to the contents of the above-described embodiment. The specific configuration of the inner sole according to the present invention and each part of the footwear provided with the inner sole can be variously redesigned within the scope intended by 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.

Claims

An inner sole that can be attached to footwear in a removable or non-removable state.
A hole or a recess is provided in the inner sole corresponding to each of the ball of the foot and the center of the heel of the user of the footwear in an internal hollow state of the upper surface opening, and the thumb is provided. It is characterized in that the ball and the central portion of the heel can be submerged in the hole or the recess.
The inner sole according to claim 1.
The hole or recess provided at a location corresponding to the ball of the thumb is a notch-shaped hole or recess in which an opening is formed at one side edge of the inner sole.
The inner sole according to claim 1.
An upward ridge portion that is provided at a portion of the upper surface portion of the inner sole corresponding 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 and is higher than the peripheral portion is further provided. I have.
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. It is a curved surface with a substantially arc shape in the side view.
The inner sole according to claim 3.
The upward ridge portion is a front side of the hole portion or the concave portion provided at a portion corresponding to the heel central portion of the inner sole, and is located at the central portion in the left-right width direction of the inner sole. ..
The inner sole according to claim 3.
The upwardly raised portion is formed by using a member softer than the sheet-shaped inner sole main body portion that forms the main portion of the inner sole.
It ’s footwear
It is characterized by having the inner sole according to claim 1.