JP3167048U - Insole - Google Patents

Abstract

[PROBLEMS] To provide an insole which can easily obtain a shape-up effect and a health-promoting effect similar to sand walking, and can be easily and inexpensively manufactured. An insole includes an insole body having at least a toe support for supporting a toe. The first low resilience layer is provided on the upper surface of the low resilience layer 24 and has a sheet-like second low resilience layer 26 made of a low resilience resin. The second low resilience layer and the first low resilience layer have different hardnesses. [Selection diagram] FIG.

Description

  The present invention relates to an insole that can enhance the shape-up effect of walking.

  Walking is popular as a simple exercise aimed at shaping up, but in general walking walking on hard roads such as paved roads, the amount of calories consumed is small, so it is possible to obtain a shape-up effect in a short time Have difficulty. On the other hand, walking on sandy land with low resilience (hereinafter referred to as “sandy walking”) increases the amount of calories consumed, so that a shape-up effect can be obtained even in a short time. However, sandy land rarely exists in the environment of daily life, and it is difficult to perform sandy walking easily.

  Therefore, in Patent Document 1, it has been proposed to use an insole in which sand is enclosed while being attached to the upper surface of a shoe sole. If this insole is used, a shape-up effect can be obtained even in a short time as in sandy walking. Further, the movement of the sand particles causes the upper surface of the insole to be deformed along the sole, so that many acupuncture points present on the sole are stimulated to promote health.

No. 3044835

  However, in the prior art described in Patent Document 1, since it is necessary to enclose natural sand or sand-like granular material in the insole, there is a problem that the manufacturing is not easy and the manufacturing cost increases.

  The present invention has been made in order to solve the above-mentioned problems, and it is possible to easily obtain a shape-up effect and a health promotion effect similar to sandy walking, and to provide an insole that can be easily and inexpensively manufactured. The purpose is to provide.

  In order to solve the above problems, an insole according to the present invention is an insole that is attached to the upper surface of a footwear bottom that constitutes the bottom of the footwear, and includes an insole body that has at least a toe support portion that supports the toe. The insole body includes a sheet-like first low resilience layer made of a low resilience resin, and a sheet-like second low resilience layer provided on the top surface of the first low resilience layer and made of a low resilience resin. The second low-resilience layer and the first low-resilience layer are different in hardness.

  In general sand, since the density of the sand in the upper layer is lower than the density of the sand in the lower layer, the hardness is different between the upper layer and the lower layer. Moreover, the sand ground which consists of a particle | grain of sand has low resilience. In the above configuration, the insole body is composed of the first low resilience layer and the second low resilience layer, and the second low resilience layer and the first low resilience layer have different hardness. Can have almost the same mechanical properties. Therefore, when the insole is attached to the upper surface of the footwear bottom, it is possible to obtain the same shape-up effect and health promotion effect as walking in the sand. Moreover, in the said structure, since the 1st low resilience layer and the 2nd low resilience layer are formed in the sheet form with low resilience resin, an insole can be manufactured easily and cheaply.

  The second low resilience layer may have a hardness lower than that of the first low resilience layer.

  In this configuration, the mechanical properties of the insole body can be made closer to the mechanical properties of sand (the hardness of the upper layer is lower than the hardness of the lower layer).

  The second low resilience layer may have a resilience modulus lower than that of the first low resilience layer.

  In this configuration, the mechanical properties of the insole body can be made closer to the mechanical properties of sand (the rebound resilience of the upper layer is lower than the rebound resilience of the lower layer).

  The first low resilience layer and the second low resilience layer may be formed of the same kind of low resilience resin, and the density of the second low resilience layer may be lower than the density of the first low resilience layer.

  In this configuration, the first low resilience layer and the second low resilience layer are formed of the same kind of low resilience resin, so that the mechanical properties of the insole body are sandy (the upper and lower layers are composed of the same kind of sand). It can be made closer to the mechanical properties of

  The insole body further includes a heel support portion that supports the heel and an arch support portion that supports the arch, and a base portion provided on a lower surface of a portion constituting the heel support portion in the first low resilience layer The base may be made of an elastic material.

  In this configuration, since an impact acting on the heel from the ground can be absorbed by the base portion formed of an elastic material, it is possible to prevent an excessive load from being applied to the heel.

  The heel holding member may have an outer wall that protrudes upward from an outer edge of the base portion and supports an outer portion of the heel supported by the heel support portion.

  In this configuration, since the outer side portion of the heel can be supported by the outer wall of the heel holding member, it is possible to prevent weight shift during walking from being excessively biased to the outside of the sole. Accordingly, it is possible to promote normal weight shift during walking, and it is possible to prevent an excessive burden on the body (including feet).

  The scissor holding member may further include a buffer member that is provided in the base portion and is fitted in the space portion, and the hardness of the buffer member may be lower than the hardness of the base portion. .

  In this configuration, since the hardness of the buffer member is lower than the hardness of the base portion, when a load is applied from the heel to the heel support portion, the portion of the heel support portion that faces the buffer member sinks more than the surrounding portion, resulting in this. The wrinkles are stably held by the recessed portions.

  In the insole body, the thickness of the portion corresponding to the baseball may be partially increased.

  In this configuration, the kicking force transmitted from the main ball to the toe support portion is sufficiently absorbed by the partially thickened portion in the second low resilience layer, so that a high shape-up effect can be obtained. it can.

  According to the insole according to the present invention, it is possible to give the insole body the same mechanical properties as sandy sand, and by using it attached to the upper surface of the footwear bottom, the shape up like sandy walking The effect and health promotion effect can be acquired. In addition, since the first low resilience layer and the second low resilience layer of the insole body can be formed into a sheet shape with a low resilience resin, it can be manufactured easily and inexpensively.

It is the perspective view seen from the upper surface side which shows the structure of the insole which concerns on embodiment. It is the perspective view seen from the lower surface side which shows the structure of the insole which concerns on embodiment. It is the disassembled perspective view seen from the upper surface side which shows the structure of the insole which concerns on embodiment.

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

  FIG. 1 is a perspective view seen from the upper surface side showing the configuration of the insole 10 according to the embodiment, and FIG. 2 is a perspective view seen from the lower surface side showing the configuration of the insole 10. FIG. 3 is an exploded perspective view showing the configuration of the insole 10 as seen from the upper surface side.

  As shown in FIGS. 1 and 2, the insole 10 is detachably or fixedly attached to the upper surface of a footwear bottom (not shown) that constitutes the bottom of footwear (not shown) such as shoes. As shown in FIG. 3, the insole body 12, the heel holding member 14, and the buffer member 16 are provided.

  As shown in FIG. 1, the insole body 12 includes a heel support portion 18 that supports the heel of the foot, a toe support portion 20 that supports the toe of the foot, and an arch support portion 22 that supports the arch of the foot. As shown in FIG. 3, the sheet-like member includes a first low resilience layer 24, a second low resilience layer 26, and a surface layer 28.

  As shown in FIG. 3, the first low resilience layer 24 is a sheet-like member made of a low resilience resin (low resilience urethane foam in the present embodiment) such as a low resilience urethane foam and the like. And a heel support lower layer portion 18a that constitutes a lower layer portion of the arch support portion 22, and a arch support lower layer portion 22a that constitutes a lower layer portion of the arch support portion 22. is doing. The hardness of the first low resilience layer 24 (Asker C hardness according to SRIS0101, hereinafter the same) and the resilience modulus (JIS K 6255: hereinafter the same) are appropriately designed according to the density of the low resilience resin as a material. Have been adjusted by.

  As shown in FIG. 3, the second low resilience layer 26 is a sheet-like member made of a low resilience resin (low resilience urethane foam in the present embodiment) such as a low resilience urethane foam and the like. A heel support upper layer portion 18b that constitutes the upper layer portion of the portion 18, a toe support upper layer portion 20b that constitutes the upper layer portion of the toe support portion 20, and an arch support upper layer portion 22b that constitutes the upper layer portion of the arch support portion 22 is doing.

  The hardness and rebound resilience of the second low rebound layer 26 are adjusted by appropriately designing the density of the low rebound resin that is the material. In the present embodiment, the hardness of the second low repulsion layer 26 is lower than the hardness of the first low repulsion layer 24, and the rebound resilience of the second low repulsion layer 26 is lower than the rebound resilience of the first low repulsion layer 24. The density of the low resilience urethane foam is designed so that

  That is, in this embodiment, since the first low resilience layer 24 and the second low resilience layer 26 are formed of the same kind of low resilience resin (low resilience urethane foam), the density of the low resilience resin is the same. If so, the hardness and the resilience modulus will be the same. Therefore, the low repulsion resin (low repulsion property) constituting the second low repulsion layer 26 so that the hardness and rebound resilience of the second low resilience layer 26 is lower than the hardness and rebound resilience of the first low repulsion layer 24. The density of the urethane foam) is designed to be lower than the density of the low resilience resin (low resilience urethane foam) constituting the first low resilience layer 24.

  As shown in FIG. 3, the surface layer 28 is bonded to the upper surface of the second low resilience layer 26 in order to improve the tactile sensation when the soles are in contact with each other and the air permeability. And a fiber structure such as a knitted fabric.

  The second low-repulsion layer 26 is bonded to the upper surface of the first low-repulsion layer 24 by adhesion or thermal welding, and the surface layer 28 is bonded to the upper surface of the second low-repulsion layer 26 by adhesion or thermal welding. ing. The surface layer 28 is not always necessary. For example, the surface layer 28 may be omitted when the footwear (shoes or the like) to which the insole 10 is applied has high air permeability.

  As shown in FIG. 1, the heel holding member 14 holds the heel supported by the heel support portion 18 of the insole body 12, and as shown in FIG. 2, the heel support in the first low resilience layer 24. It has the base 30 provided in the lower surface of the part which comprises the part 18 (FIG. 1). As shown in FIG. 2, the base 30 is a buffer portion that absorbs an impact acting on the ridge from the ground, and the length of the base 30 in the front-rear direction is such that the front edge 30 a is positioned on the arch support portion 22 in the insole body 12. Designed to be.

  As shown in FIG. 3, the hook holding member 14 is provided to protrude upward from the outer edge of the base 30, and protrudes upward from the outer wall 32 a that supports the outer part of the hook and the inner edge of the base 30. It has an inner wall 32b that supports the inner side of the bag and a rear wall 32c that protrudes upward from the rear side of the base 30 and supports the rear side of the bag. The base 30, the outer wall 32a, the inner side wall 32b, and the rear side wall 32c are integrally formed of an elastic material (hard EVA in this embodiment) such as ethylene-vinyl acetate resin (EVA), polyurethane, rubber, and the like. The entire heel holding member 14 has a cup shape that wraps the heel. That is, the insole 10 according to the present embodiment is a so-called “cup insole”.

  As shown in FIG. 3, the base portion 30 is formed with a through hole 34 as an “empty portion” into which the buffer member 16 is fitted. The shape of the through hole 34 is not particularly limited, but in the present embodiment, it is designed to be substantially circular so as to match the shape of the ridge.

  As shown in FIG. 3, the buffer member 16 is a sheet-like or plate-like member, and has a cushioning material such as polyurethane, ethylene-vinyl acetate resin (EVA), rubber, etc. (in this embodiment, urethane foam). ). The buffer member 16 is designed to have a hardness lower than that of the base 30. Therefore, when a load acts on the heel support portion 18 from the heel, the portion of the heel support portion 18 that opposes the buffer member 16 sinks more than the surrounding portion, and the heel is stabilized by a recess (not shown) generated thereby. Retained.

  When the insole 10 is mounted on the upper surface of the footwear bottom (shoe sole or the like), the outer wall 32a, the inner side wall 32b, and the rear side wall 32c of the heel holding member 14 in the insole 10 are the heels of the portion (upper etc.) that accommodates the foot. It is arranged along the inner surface of the part. Therefore, when the user wears footwear (shoes or the like) with the insole 10 attached to, the heel holding member 14 can hold the heel in an appropriate position, and can promote normal weight shift during walking. Further, in the insole body 12, the hardness of the second low-repulsion layer 26 and the first low-repulsion layer 24 are different, and the second low-repulsion layer 26 is lower in hardness and lower in repulsion than the first low-repulsion layer 24. The insole body 12 can have substantially the same mechanical characteristics as sandy sand, and the shape-up effect and health promotion effect similar to sandy sand walking can be obtained.

  In the above-described embodiment, the insole body 12 includes the heel support portion 18, the toe support portion 20, and the arch support portion 22, but in other embodiments (not shown), the insole body 12 is at least It is only necessary to have the toe support part 20, and at least one of the heel support part 18 and the arch support part 22 may be omitted. Even in this case, since the toe support part 20 can have substantially the same mechanical characteristics as the sandy ground, the shape-up effect and health promotion effect similar to the sandy walking can be obtained in the toe support 20.

  In the above embodiment, the first low resilience layer 24 and the second low resilience layer 26 are formed of the same kind of low resilience resin (low resilience urethane foam), but other embodiments (not shown). ), These may be formed of different types of low-resilience resins. Even in this case, by designing the second low resilience layer 26 and the first low resilience layer 24 so as to have different hardnesses, it is possible to obtain the same shape-up effect and health promotion effect as sandy walking. Even in this case, it is desirable to design the hardness of the second low repulsion layer 26 to be lower than the hardness of the first low repulsion layer 24. In addition, it is desirable to design the rebound resilience of the second low resilience layer 26 to be lower than that of the first low resilience layer 24.

  In the above-described embodiment, the thickness of the insole body 12 is substantially uniform throughout, but in other embodiments (not shown), the thickness of the insole body 12 is the mother of the toe support portion 20. The part corresponding to the Ryukyu may be partially thickened. In this case, the force that kicks out the foot transmitted from the main ball to the toe support portion 20 can be absorbed and dispersed by the partially thickened portion of the insole body 12, so that the shape-up effect can be obtained. Can be increased.

  Moreover, in the above-mentioned embodiment, the heel holding member 14 has the outer side wall 32a, the inner side wall 32b, and the rear side wall 32c. However, all of these may be abbreviate | omitted in other embodiment (illustration omitted). In addition, at least one of the inner side wall 32b and the rear side wall 32c may be omitted. Even when all of these are omitted, the base 30 can absorb the impact acting on the kite from the ground, so that it is possible to prevent an excessive burden on the kite. Further, even when at least one of the inner side wall 32b and the rear side wall 32c is omitted, the outer side wall 32a can support the outer portion of the heel, so that the weight shift during walking is excessively biased to the outside of the sole. Can be prevented, and normal weight shift can be promoted.

  In the above-described embodiment, the through hole 34 formed in the base 30 is used as an “empty portion” into which the buffer member 16 is fitted. In other embodiments (not shown), the upper surface of the base 30 is used. Or the recessed part formed in the lower surface may be used as an “empty part” in which the buffer member 16 is fitted.

  The “sole” according to the present invention can be widely used for women's shoes, men's shoes, sports shoes, trekking shoes, and the like.

DESCRIPTION OF SYMBOLS 10 ... Insole 12 ... Insole main body 14 ... Saddle holding member 16 ... Buffer member 18 ... Saddle support part 20 ... Toe support part 22 ... Archer support part 24 ... 1st low-resilience layer 26 ... 2nd low-resilience layer 28 ... Surface Layer 30 ... Base 32a ... Outer side wall 32b ... Inner side wall 32c ... Rear side wall 34 ... Through hole (empty part)

Claims (8)

An insole that is attached to the upper surface of the footwear bottom constituting the bottom of the footwear,
Comprising an insole body having a toe support portion for supporting at least the toe,
The insole body includes a sheet-like first low-resilience layer made of a low-resilience resin and a sheet-like second low-resilience layer provided on the upper surface of the first low-resilience layer and made of a low-resilience resin. Have
The insole, wherein the second low resilience layer and the first low resilience layer have different hardness.   The insole according to claim 1, wherein the hardness of the second low resilience layer is lower than the hardness of the first low resilience layer.   The insole according to claim 1 or 2, wherein a resilience modulus of the second low resilience layer is lower than a resilience modulus of the first low resilience layer. The first low resilience layer and the second low resilience layer are formed of the same kind of low resilience resin,
The insole according to any one of claims 1 to 3, wherein the density of the second low resilience layer is lower than the density of the first low resilience layer. The insole body further includes a heel support portion that supports the heel, and an arch support portion that supports the arch,
A heel holding member having a base portion provided on a lower surface of a portion constituting the heel support portion in the first low resilience layer;
The insole according to any one of claims 1 to 4, wherein the base is formed of an elastic material.   The insole according to claim 5, wherein the heel holding member includes an outer wall that protrudes upward from an outer edge of the base portion and supports an outer portion of the heel supported by the heel support portion. The heel holding member has an empty portion provided in the base,
Further comprising a buffer member fitted in the empty portion,
The insole according to claim 5 or 6, wherein a hardness of the buffer member is lower than a hardness of the base portion.   The insole according to any one of claims 1 to 7, wherein in the insole body, a portion corresponding to the main ball is partially thickened.

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