JP5227713B2 - Footwear and internal structure - Google Patents

Description

The present invention relates to footwear and internal structure.

Of foot, thumb ball around the sesamoid bone in the first metatarsal, hypothenar located at the top of the 5 metatarsal and heel, weight bearing, on to balance the front and rear left and right body Has an important role.

In addition, the thumb ball position P1, the little finger ball position P2, and the thumb position P3 shown in FIG. Yes. That is, the foot bone between the thumb ball position P1 and the foot position P3 constitutes the inner longitudinal foot arch A1, and the foot bone between the little finger ball position P2 and the foot position P3 constitutes the outer longitudinal foot arch A2. To do. Further, the thumb ball position P1 to the little finger ball position P2 constitute a side foot arch A3. The inner vertical footbow A1, the outer vertical footbow A2, and the lateral footbow A3 constitute a so-called foot arch, and correspond to a concave portion on the back surface of the foot such as an arch.

  The arch of the foot has a function as a spring of the foot, elastically deforms with the movement of the body, relieves the impact applied to the foot, and assists the expansion and contraction of the muscles of the lower leg. Thereby, blood is pumped from the foot toward the heart to promote blood circulation. Also, the muscular strength of the lower leg is improved by elastic deformation of the foot arch.

On the other hand, various insoles and insoles have been developed for the purpose of improving the fit. For example, as shown in Patent Document 1, many insoles for providing a raised portion without an arch have been developed.
JP 2003-38204 A

  However, since the space formed between the recess on the back of the foot and the insole is used to elastically deform the foot arch up and down, if the arch is filled with the raised portion as described above, the foot arch This will prevent elastic deformation.

The present invention has been made in view of the above problems, and an object of the present invention is to provide footwear and an internal structure capable of growing a normal foot arch.

In order to solve the above-mentioned problem, the invention according to claim 1 is a footwear including an internal structure that supports a user's foot from the sole side, the internal structure being a user's footwear. An insole opposite to the sole, an insole disposed below the insole, and the insole and a soft member disposed between the insole and covering the surface with the insole, the soft member Is provided at a position opposite to a hole formed at positions of three fulcrums consisting of a toe ball, a little toe ball and a heel of the foot, and an inner longitudinal footbow of the foot, and the elastic motion of the inner longitudinal footbow Provided in a position opposite to the outer vertical footbow of the foot, and in a position opposite to the lateral footbow of the foot and allowing the elastic movement of the outer vertical footbow. provided, and a permitting portion for permitting the elastic movement of the transverse arch, the said hole the soft member It is summarized as also is fitted a support portion formed of a hard material.

According to this, the footwear includes a supporting portion for supporting the fulcrum of the foot, three medial longitudinal arch of the foot, the arch foot arch position respectively opposing to the outer Tateashi arch and Yokoashi Bow The permissible part which permits the elastic motion of was provided. For this reason, since the elastic motion of each foot arch in the vertical direction is not hindered, the foot arch can be raised.

Further , according to this, since the material of the foot arch position is softer than the material of the fulcrum position, the elastic motion of the foot arch can be prevented from being hindered at the foot arch position.
The invention according to claim 2 is a footwear comprising an elastically deformable bottom formed in a shape matching a foot shape, wherein the bottom has three fulcrums consisting of a toe ball, a little finger ball and a heel of the foot. A support portion for supporting the inner vertical footbow of the foot portion, a permissible portion for allowing the elastic motion of the inner vertical footbow, and a position of the foot portion facing the outer vertical footbow. Provided with a permissible portion that allows elastic movement of the outer longitudinal footbow, and a permissible portion that is provided at a position opposite to the lateral footbow of the foot portion and allows elastic movement of the lateral footbow , The bottom portion has an edge projecting along the edge of the lower surface, the support portion projects in a recess surrounded by the edge, and the height of the support portion is higher than the height of the edge portion. The summary is high .

According to this, a support part is the protrusion provided in the lower surface of footwear. For this reason, since the elastic motion of the footbow in the vertical direction is not hindered, the foot arch can be raised.
The invention according to claim 3 is an internal structure that supports a user's foot from the sole side, and the internal structure has an insole opposite to the sole of the user's foot, and below the insole. An insole disposed; and a soft member disposed between the insole and the insole, the surface of which is covered by the insole, the soft member comprising a toe ball, a little toe ball, and a heel of a foot A hole formed at three fulcrum positions; a permissible portion provided at a position opposite to the inner longitudinal footbow of the foot portion; and allowing the elastic motion of the inner longitudinal footbow; and an outer longitudinal footbow of the foot portion And a permissible portion for allowing the elastic movement of the lateral longitudinal arch, and a permissible portion for allowing the elastic motion of the lateral foot arch. and a section, a support portion formed of a harder material than the soft member is fitted into the hole The gist of the door.

According to this, the internal structure, a support for supporting a respective fulcrum of the foot, three medial longitudinal arch of the foot, the outer Tateashi bow, each arch positions respectively opposed to Yokoashiyumi A permissible portion that allows elastic movement of each foot arch is provided. For this reason, by attaching the internal structure to the footwear, the elastic motion in the vertical direction of each foot arch is not hindered, so that the foot arch can be raised.

According to the present invention, it is possible to provide footwear and an internal structure for cultivating a normal foot arch.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an exploded perspective view of an internal structure 1 of a shoe for a right foot, FIG. 2 is a plan view of the internal structure 1, and FIG.

The internal structure 1 is arranged inside the shoe and supports the user's foot from the sole side. As shown in FIG. 1, the internal structure 1 has an insole 3 opposite to the user's sole, and an insole 2 disposed below the insole 3. The insole 3 is a sole-type sheet laid to improve comfort and breathability, and has a thickness of several millimeters (1 to 2 millimeters). The insole 2 (insole) is provided between the above-described insole 3 and a main bottom (outsole) made of a material such as rubber. The insole 2 is formed in a sole shape like the insole 3 and is made of a fiber or the like, and has a function as a cushion.

Between the insole 3 and the insole 2, three height adjusting parts 5 as support parts are provided. The height adjusting unit 5 may be adhered to the lower surface of the insole 3 or the upper surface of the insole 2 with an adhesive or the like, or may be sewn to the insole 3 or the insole 2. As shown in FIG. 2, the first adjustment unit 5 </ b > A is provided at a position that supports the toe ball of the foot ( finger ball position). The thumb ball is one of the fulcrums that support the weight, with the seed bone in the metatarsal bone of the thumb as the center. The size of the first adjustment portion 5A is formed to be the size of the seed bone or the size of the ground contact portion of the seed bone.

The 2nd adjustment part 5B is provided in the position ( little finger ball position) which supports the little ball of a foot. The little finger ball is one of the fulcrums that support the weight centered on the metatarsal bone of the little finger. The size of the second adjustment portion 5B is formed to be approximately the same as the size of the ground contact portion of the metatarsal bone.

  The third adjustment unit 5C is provided at a position (an heel position) that supports the heel of the foot. The size of the third adjusting portion 5C is formed to be approximately the same as the ground contact portion of the bag. Further, the third adjustment portion 5C may be smaller than the ground contact portion of the heel. In this case, the third adjustment portion 5C is disposed at the center of the heel and stably supports the heel.

  The height of these height adjusting portions 5A to 5C is about several millimeters, for example, 1 to 3 mm, and is formed in an elliptical shape in the present embodiment. In addition to the elliptical shape, it may be formed in other shapes such as a circular shape, a square shape, a triangular shape, and the like. Moreover, you may form each adjustment part 5A-5C in a respectively different magnitude | size and a different shape.

Moreover, if the material of each height adjustment part 5 uses a material with low resilience, such as soft polyurethane, although it can improve comfort, it is not specifically limited.
FIG. 3A is a cross-sectional view of the main part crossing the position of the thumb ball and the position of the little ball on the line AA in FIG. 2, and FIG. 3B is the thumb on the line BB in FIG. It is principal part sectional drawing which crosses a ball | bowl position and a little finger ball position. FIG. 3C is a cross-sectional view of the main part crossing the position of the little finger ball and the eyelid position along the line CC in FIG.

  As shown in FIGS. 3 (a) to 3 (c), when the height adjusting portions 5 are respectively arranged at the above-described positions on the upper surface of the insole 2 and the insole 3 is superimposed on each of the height adjusters 5, A protrusion 7 is formed at the position where the height adjustment unit 5 is provided and laid along the upper surface of the height adjustment unit 5.

Further, as shown in FIG. 3 (a), a protrusion 7A at the position of the little finger ball and a protrusion 7B at the position of the thumb ball are formed, so that an upper surface 8 (bottom surface) between the protrusions 7A and 7B. Constitutes a recess (allowable portion) whose height is lower than the upper surface of the protrusion by the thickness of the height adjusting portion 5. Thus, when the height of the thumb ball position and the little finger ball position is several millimeters higher than the other areas, the thumb ball and the little finger ball come into contact with the insole 3, and the sole of the foot between the thumb ball and the little ball is insole 3 is not touching.

Similarly, as shown in FIG. 3B, the upper surface 8 (bottom surface) between the protrusion 7A at the thumb ball position and the protrusion 7C at the heel position is equal to the thickness of the height adjustment portion 5 than the upper surface of the protrusion. A concave portion (allowable portion) having a reduced height is formed. Thereby, at least a part of the thumb ball and the heel is in contact with the insole 3, and the sole of the foot between the thumb ball and the heel is not in contact with the insole 3.

  As shown in FIG. 3C, the upper surface 8 (bottom surface) between the protrusion 7B at the little ball position and the protrusion 7C at the heel position is higher than the upper surface of the protrusion by the thickness of the height adjusting portion 5. A concave portion (allowable portion) having a reduced height is formed. Thereby, at least a part of the little finger ball and the heel is in contact with the insole 3, and the sole of the foot between the little finger ball and the heel is not in contact with the insole 3.

Next, the operation of the internal structure 1 will be described. FIG. 4 is a schematic view of a foot part wearing the above shoes. Each protrusion 7 supports the foot at the thumb ball position, the little finger ball position, and the hook position. Since the weights are concentrated on each of these protrusions 7 and the load applied to the other regions is small, the balance between the front, rear, left and right can be adjusted by supporting the body with three fulcrums. In particular, even when a flat insole such as a flat foot cannot properly support three points of weight, three points can be supported by the protrusions 7 protruding through the insole 3.

In addition, the heel position from the thumb ball position, sesamoid 50 (see FIG. 5), the first metatarsal 51, cuneiform 52, navicular bone 53, the talar 54, there is calcaneus 55 and the like, these metatarsal Constitutes an inner vertical foot 11 that curves upward in the vertical direction. From the little finger ball position to the heel position, there are a fifth metatarsal bone 56, a cubic bone 57, a rib 55, and the like, and these foot bones constitute the outer longitudinal footbow 12 that curves upward in the vertical direction. A joint between the metatarsal bone and the proximal phalanx of each finger is located between the thumb ball position and the little ball position, and these constitute a lateral foot arch 13 that curves upward in the vertical direction.

FIG. 5 is a schematic view of the right foot part wearing the shoe viewed from the left side (inside), and FIG. 6 is a schematic view of the right foot part wearing the shoe viewed from the right side (outside). As shown in FIG. 5, when the above shoes are worn, the seed bones 50 constituting the thumb ball are supported from below by a protrusion 7A provided at the thumb ball position via the muscles of the soles. Further, the heel is supported from below by a protrusion 7C provided at the heel position. In addition, as shown in FIG. 6, the little finger ball is supported from below by a protrusion 7B provided at the little ball position.

  As a result, the entire bottom surface of the foot except for each fulcrum is in a state of being separated from the top surface 8, and a concave portion corresponding to the inner vertical footbow 11 on the bottom surface of the foot and the top surface 8 (footbow position) opposite to the concave portion. The gap 10 is enlarged. By enlarging the gap 10, even if the size of the arch is small, a sufficient space is secured for the inner vertical foot 11 to be elastically deformed.

  Further, the gap 10 between the concave portion corresponding to the outer vertical footbow 12 in the back surface of the foot and the upper surface 8 (footbow position) opposite to the concave portion is enlarged. By enlarging the gap 10, even if the size of the arch is small, a sufficient space for elastically deforming the outer vertical footbow 12 is secured.

  In addition, the protrusions 7A and 7B expand a gap between the concave portion corresponding to the lateral footbow 13 and the upper surface 8 (footbow position) opposite to the concave portion in the back surface of the foot. This gap ensures a sufficient space for the lateral foot 13 to be elastically deformed even when the size of the recess on the sole is small. For example, even when the user of a flat foot wears the above shoes, the gap 10 can be forcibly formed between the back surface of the foot and the upper surface 8 by lifting the entire sole with the protrusions 7.

  As described above, since the gap 10 is sufficient between the foot sole and the insole 3 so that each of the footbows 11 to 13 is elastically deformed, the elastic motion of each of the footbows 11 to 13 is not hindered. When each of the toes 11 to 13 elastically moves using the gap 10 due to the user's exercise, exercise of the dorsal muscles and plantar muscles, which are the muscles of the foot, and the radial tendon associated with the rib 55 Stretching and the like becomes active, improving the muscle strength of the lower leg and promoting blood circulation.

According to the first embodiment, the following effects can be obtained.
(1) In the first embodiment, the thumb ball of the foot, the height of the protrusions 7 which respectively support three fulcrums consisting hypothenar and heel, relative to the arch 11 to 13 between the projecting portions 7 It is formed higher than the upper surface 8 that faces it. For this reason, a sufficient gap 10 is formed between the back of the foot and the insole 3 so that each of the arches 11-13 can move up and down, so that the elastic movement of each of the arches 11-13 is not obstructed reliably. Can be. Further, even in the case of a flat foot, the gap 10 is forcibly formed between the back surface of the foot and the insole 3 by each protrusion 7, so that the arch of the foot can be raised.

  (2) In the first embodiment, since the height adjusting portion 5 is provided between the insole 2 and the insole 3 and the protrusion 7 is formed, the internal structure 1 can be produced by a relatively simple method. it can. Moreover, the height adjustment part 5 can also be attached later to ready-made shoes or the like.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. In addition, since 2nd Embodiment is a structure which changed only the height adjustment part 5 of 1st Embodiment, the detailed description is abbreviate | omitted about the same part.

  FIG. 7 is an exploded perspective view of the internal structure 40 of the second embodiment, and FIG. 8 is a cross-sectional view of the main part of the internal structure 40. As shown in FIG. 7, the internal structure 40 includes a soft member 41 between the insole 2 and the insole 3. The soft member 41 is formed in a sole shape, and is made of a material that is softer than the material of the height adjusting portion 5 and has a high compression rate.

The soft member 41 is formed with holes 41A to 41C for fitting the height adjusters 5A to 5C at the thumb ball position, the little finger ball position, and the hook position, respectively. Further, the soft member 41 is formed to have substantially the same thickness as the height adjusting portion 5. And the soft member 41 is pinched | interposed between the insole 2 and the insole 3 in the state which each fitted the height adjustment parts 5A-5C in these holes 41A-41C.

FIG. 8 is a cross-sectional view of the internal structure 40 at a position (a line AA in FIG. 2) that crosses both the thumb ball position and the little ball position. Since each height adjustment part 5A-5C is each accommodated in each hole 41A-41C of the soft member 41, the upper surface of the soft member 41 becomes substantially planar shape. When the thickness of the height adjusting unit 5 is slightly thicker than the thickness of the soft member 41, the height of the height adjusting unit 5 is slightly higher. When the insole 3 is laid on the upper surface and the internal structure 40 is viewed from the insole 3 side, the insole 3 does not appear to be undulated unlike the internal structure 1 provided with the protrusions 7 described above. Note that the insole 3 may be omitted, and the soft member 41 and the sole may be in contact with each other.

  When the internal structure 40 is housed in a shoe and the user wears the shoe, weight is added to the internal structure 40. At this time, since the compression amount of the soft member 41 is larger than the compression amount of the height adjustment unit 5, the support in which the three height adjustment units 5 are located is higher than the height of the upper surface of the soft member 41 to which the weight is added. The height of the position increases. For this reason, it will be in the state where each fulcrum of a foot | leg part is lifted by the height adjustment part 5 similarly to 1st Embodiment. Further, since the soft member 41 is located at a position (foot arch position) opposite to the concave portions of the inner vertical foot arch, the outer vertical foot arch, and the lateral foot arch in the internal structure 40, for example, the flat foot Even if the foot arch portion of the back surface of the foot contacts, the soft member 41 is easily compressed, so that the elastic motion of each foot arch in the vertical direction is not hindered. For this reason, the elastic movement of each foot arch activates the movement of the dorsal muscle group and plantar muscle group, which are the muscles of the foot, and the expansion and contraction of the radial tendon associated with the rib 55, and the muscle strength of the lower leg Improves and blood circulation is promoted.

Therefore, according to the second embodiment, the following effects can be obtained.
(3) In the second embodiment, the thumb ball of the foot, the height adjustment unit 5 for respectively supporting the three fulcrums consisting hypothenar and the heel, located around each height adjusting unit 5, the arch The hardness of the soft member 41 is larger than that of the soft member 41 facing each other. Therefore, when the user wears shoes, the soft member 41 sinks and the height adjusting unit 5 supports each fulcrum, so that the elastic motion of each foot arch is not hindered. For this reason, the arch of a leg can be raised.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIGS. In addition, since 3rd Embodiment is a structure which only changed the position which provides the support part (height adjustment part) of 1st Embodiment, the detailed description is abbreviate | omitted about the same part.

  In the third embodiment, the footwear is embodied in slippers. In addition to this, it is also possible to embody footwear such as shoes and sandals. FIG. 9 is a perspective view of the slipper 60 as seen from the back side. The slipper 60 includes a bottom portion 66 and an upper portion 67. The bottom portion 66 is made of a synthetic resin such as rubber or polyurethane, and is molded into a shape matching a general foot shape by a known method such as injection molding. The upper portion 67 is made of cloth, a resin sheet, a leather material, or the like, and is sewn to the molded bottom portion 66.

  Of the bottom 66, an upper surface 66A (see FIG. 10) that contacts the user's foot back surface is formed flat. As shown in FIG. 9, an edge portion 64 is provided on the lower surface 66 </ b> B of the bottom portion 66. The edge portion 64 has a height of several millimeters and is provided along the edge of the bottom portion 66 so as to surround the lower surface 66B. By forming the edge portion 64 in this way, a recess 65 is formed by the inner surface of the edge portion 64 and the back surface 66B.

The bottom surface 66B of the bottom 66 is provided with protrusions 61 to 63 as support portions. These protrusions 61 to 63 are formed in an island shape inside the edge 64, that is, in the recess 65. The 1st protrusion 61 is provided in the thumb ball position of the foot | foot part of the size to which the slipper 60 is applied. Further, since the slipper 60 has a wide range of sizes to be applied, the first protrusion 61 may be formed slightly larger than, for example, the size of the seed bone or the size of the ground contact portion of the seed bone.

  The second protrusion 62 is provided at the position of the little finger ball, and is formed, for example, slightly larger than the size of the ground contact portion of the metatarsal bone. The 3rd protrusion 63 is provided in the eaves position, and is formed in the substantially same magnitude | size as the grounding part of an eaves.

  Each of the protrusions 61 to 63 is formed in an elliptical shape or a circular shape, and has a height (several millimeters) equal to or higher than the height of the edge portion 64. The protrusions 61 to 63 have the same height, and may be formed in the same shape or size, or may be formed in different shapes or sizes as shown in the drawing. In addition, in this embodiment, although each protrusion 61-63 was integrally formed in the bottom part 66, you may make it fix the protrusions 61-63 formed separately.

FIG. 10 is a plan view of a slipper 60 applied to both feet. The protrusions 61 to 63 are provided at the thumb ball position, the little finger ball position, and the heel position of the slipper 60 for the right foot and the slipper 60 for the left foot, respectively. Thus, in 3rd Embodiment, since each protrusion 61-63 is provided in the back surface (lower surface 66B of the bottom part 66) contact | abutted with a floor surface, when a user wears the slipper 60, each The protrusions 61 to 63 can be prevented from coming into contact with the sole surface. For this reason, depending on the user, the comfort can be improved as compared with the case where the protrusions 61 to 63 are provided on the upper surface 66A. Moreover, since each protrusion 61-63 is formed in the back surface of the slipper 60, in the state which attached the back surface of the slipper 60 to the floor surface, it is hidden by the edge part 64 and each protrusion 61-63 is difficult to visually recognize. It has become. For this reason, it can be set as the structure which does not affect the design of the slipper 60. FIG.

FIG. 11 is a cross-sectional view taken along the line AA of the slipper 60 for the right foot shown in FIG. When the user wears the slipper 60, the protrusions 61 to 63 are brought into contact with the floor surface 70, and the recess 65 is not in contact with the floor surface 70. In addition, when the protrusions 61 to 63 are formed at the same height as the edge 64, the edge 64 also contacts the floor surface 70, but each protrusion 61 to 63 is a thumb that supports the weight of the user. Since it is provided at each of the ball position, the little finger ball position, and the heel position, the weight of the user is concentrated on each of the protrusions 61 to 63. For this reason, the front-rear and left-right balance can be adjusted by mainly supporting the body at three fulcrums.

  Further, when the user wears the slipper 60, the inner vertical footbow 11 described in the first embodiment is positioned in the recess 65 between the first protrusion 61 and the third protrusion 63. The outer vertical footbow 12 is located in the recess 65 between the second protrusion 62 and the third protrusion 63, and the lateral footbow 13 is the recess between the first protrusion 61 and the second protrusion 62. Located at 65. That is, the bottom 66 corresponding to the position of each footbow 11 to 13 is not in contact with the floor surface 70 and is in a floating state when not walking. The bottom 66 corresponding to the position of each of the arches 11 to 13 has a thickness of several millimeters and is formed to be elastically deformable. Therefore, when the user walks and the arches 11 to 13 are elastically deformed. The bottom 66 corresponding to the position of each of the arches 11 to 13 is deformed downward. For this reason, since the recessed part 65 formed in the bottom part 66 accept | permits the elastic deformation of each foot arch 11-13, it can avoid preventing the motion of each foot arch 11-13.

Therefore, according to the third embodiment, the following effects can be obtained.
In (4) the third embodiment, the thumb ball of the foot, projections 61 to 63 for supporting each of the three fulcrums consisting hypothenar and the heel is provided on the lower surface 66B of the bottom 66 of the slipper 60. Accordingly, when the user wears shoes, the bottom 66 other than the protrusions 61 to 63 is elastically deformed in accordance with the elastic deformation of the footbows 11 to 13, so that the elastic motion of each footbow is not hindered. be able to. For this reason, the arch of a leg can be raised. Moreover, since each protrusion 61-63 was integrally formed in the bottom part 66, the slipper 60 without an unevenness | corrugation in the contact surface with a foot | leg back surface can be provided.

In addition, you may change each said embodiment as follows.
-In 1st Embodiment, although the protrusion 7 was formed by interposing the height adjustment part 5 between the insole 2 and the insole 3, height adjustment to the insole 2 or the insole 3 is carried out integrally. The part 5 may be formed.

  -In 1st Embodiment, although the protrusion 7 was formed by interposing the height adjustment part 5 between the insole 2 and the insole 3, you may provide the height adjustment part 5 in the upper surface of the insole 3. . Further, the height adjusting portion 5 may be provided on the insole 2 and the insole 3 may be omitted.

-In 1st Embodiment, although the height adjustment part 5 was provided between the insole 2 and the insole 3, and the protrusion 7 was formed, the recessed part 21 as an allowance part is formed in the insole 20 as shown in FIG. It may be formed. The concave portion 21 is a portion in which a region other than the thumb ball position 22, the little finger ball position 23, and the thumb position 24 is formed in a concave shape, and is formed lower than the thumb ball position 22, the little finger ball position 23, and the thumb position 24. Furthermore, it is preferable to lay an insole (not shown) with a thickness of several millimeters on the insole 20 to improve the comfort. Even if this internal structure is a flat foot, a space for elastic movement of each foot arch is secured, so that the arch of the foot can be raised.

  The internal structure 1 is composed of the insole 2, the insole 3 and the height adjusting unit 5, but may be composed of the insole 2 and the height adjusting unit 5, or the insole 3 and the height adjusting unit 5. . Further, the internal structure 1 may be fixed by being sewn or adhered to the footwear, or may be provided so as to be detachable from the footwear.

  -In 3rd Embodiment, although the edge part 64 was provided in the bottom part 66 of the slipper 60, you may abbreviate | omit this. In this case, the space provided between the protrusions 61 to 63 corresponds to an allowable portion that allows the elastic movement of the toe.

In the above embodiments, shoes are exemplified as footwear, but may be embodied in other footwear such as slippers, sandals, and socks. When embodied in socks, as shown in FIG. 13, the inner ball 31 of the sock 30 is knitted so that the thumb ball position, the little finger ball position, and the hook position are thick. Or you may fix the cloth formed in the size of a thumb ball, a little finger ball, and a heel, polyurethane, etc. to the inner surface 31. As a result, a protrusion 32 at the thumb ball position, a protrusion (not shown) at the little finger ball position, and a protrusion 33 at the hook position are formed. Even when the sock 30 is worn, the arch of the foot can be raised as described above.

The disassembled perspective view of the internal structure of the shoes of this embodiment. The top view of an internal structure. (A) is a cross-sectional view of the main part of the internal structure crossing the little finger ball position from the thumb ball position, (b) is a cross-sectional view of the main part of the internal structure crossing the finger ball position and the hook position, and (c) is the little finger ball position. And sectional drawing of the principal part of the internal structure which crosses a heel position. The schematic diagram of the foot | leg part which wore shoes. The schematic diagram which looked at the foot from the inside. The schematic diagram which looked at the foot from the outside. The disassembled perspective view of the internal structure of 2nd Embodiment. Sectional drawing of the principal part of the internal structure of 2nd Embodiment. The perspective view of the footwear of 3rd Embodiment. The top view of the footwear of 3rd Embodiment. Sectional drawing of the footwear of 3rd Embodiment. The perspective view of the internal structure of another example. The principal part sectional drawing of footwear of another example. The conceptual diagram explaining the arch of a leg.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,20,40 ... Internal structure of footwear, 5 ... Height adjustment part, 7, 7A-7C, 32, 33 ... Projection, 8 ... Bottom face which comprises an allowance part, 11 ... Inner vertical footbow, 12 ... Outer vertical footbow, 13 ... Lateral footbow, 21,65 ... Recessed portion constituting the allowance, 30 ... Socks as footwear, 51-53 ... Projection, 66B ... Lower surface, P1 ... Thumb ball position, P2 ... Little finger ball Position, P3 ... 踵 position.

Claims (3)

Footwear comprising an internal structure that supports the user's foot from the sole side,
The inner structure includes an insole opposite to the user's foot sole, an insole disposed below the insole, and a soft material disposed between the insole and the insole so that the surface is covered by the insole. And having a member
The soft member is provided at a position opposite to a hole formed at positions of three fulcrums including a toe ball, a little toe ball, and a heel of a foot part, and an inner longitudinal foot arch of the foot part. Provided in a position opposite to the outer vertical footbow of the foot part, and to allow the elastic movement of the outer vertical footbow, and to face the lateral footbow of the foot part. Provided with a permissible portion that allows elastic movement of the lateral foot arch ,
Footwear, wherein a support portion made of a material harder than the soft member is fitted into the hole . Footwear comprising an elastically deformable bottom formed into a shape that matches the foot shape,
The bottom portion is provided at a position opposed to the inner longitudinal footbow of the foot portion, a support portion for supporting three fulcrums consisting of the toe ball, the little finger ball and the heel of the foot portion, and the elasticity of the inner longitudinal footbow. A permissible portion for allowing movement; a permissible portion for allowing elastic movement of the outer longitudinal footbow; and a position facing the lateral footbow of the foot portion. Provided with a permissible portion allowing the elastic movement of the lateral foot arch ,
The bottom portion has an edge projecting along the edge of the lower surface, the support portion projects in a recess surrounded by the edge, and the height of the support portion is higher than the height of the edge portion. Footwear characterized by being expensive . An internal structure that supports the user's foot from the sole side,
The inner structure includes an insole opposite to the user's foot sole, an insole disposed below the insole, and a soft material disposed between the insole and the insole so that the surface is covered by the insole. And having a member
The soft member is provided at a position opposite to a hole formed at positions of three fulcrums including a toe ball, a little toe ball, and a heel of a foot part, and an inner longitudinal foot arch of the foot part. Provided in a position opposite to the outer vertical footbow of the foot part, and to allow the elastic movement of the outer vertical footbow, and to face the lateral footbow of the foot part. Provided with a permissible portion that allows elastic movement of the lateral foot arch ,
An internal structure characterized in that a support portion made of a material harder than the soft member is fitted into the hole .

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