JP2013000170A - Support member and shoe insert using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that the shape of a reinforcing member of a conventional shoe insert is changed because of a load of the sole of the foot and no flapping motion can be performed stably because the side of foot is hard to be fixed and the foot is hard to be fixed inside a shoe.SOLUTION: A support member 1 supports the sole of the foot including the arch of the foot by a flat first bottom surface 2 and a curved second bottom surface 3 and prevents the lateral slippage of the foot inside a shoe by its side face 4. Owing to this structure, the skeletal structure of the foot is fixed at an appropriate position inside the shoe. When a load is applied to the sole of the foot, stability is improved by the first bottom surface 2, thereby improving flapping motion efficiency and preventing turnover.

Description

  The present invention relates to a support member that supports a user's tilting movement and improves stability during walking and the like, and a shoe insole using the support member.

  First, according to a survey by the Ministry of Internal Affairs and Communications, the total population of Japan as of October 1, 2009 is 127.51 million, of which the elderly population over 65 is 295,000, Compared to 789,000 people. And the population of 75 years old or older among the elderly population is 13.71 million, an increase of 491,000 compared to the previous year.

  The ratio of the elderly population to the total population is 22.7%, an increase of 0.6 points from the previous year. The ratio of the elderly population to the total population over 75 years old is 10.8%, an increase of 0.4 points from the previous year. For example, looking at the ratio of the elderly population to the total population in each country, Germany was 20.4% (December 31, 2008), Italy was 20.1% (January 1, 2009), and France was 16.8%. % (January 1, 2010), the UK is 16.2% (July 1, 2008), the United States is 13.0% (November 1, 2009), and Japan is one of the best in the world. Has entered an aging society. Furthermore, at the National Institute of Population and Social Security Research, in 2055, the percentage of the above-mentioned elderly population in Japan reached 40.5%, exactly two out of five people were over 65 years old, One person is estimated to be over 75 years old.

  On the other hand, according to the 2008 statistics of the Tokyo Fire Department, 78% of people over the age of 65 who called ambulances due to general injuries were caused by “falling”, followed by “falling”. Is 6%. In the case of elderly people, more than 80% of people who call ambulances are caused by “falling” or “falling”. As one of the causes, muscle strength decreases with age, and the skeletal arch of the foot collapses. It is presumed that the stability of the feet deteriorates and the posture changes, so that the support of the body becomes unstable.

  Next, considering the movement of the center of gravity in normal walking anatomically, the weight on the heel by landing moves along the outer side and moves from the bone head of the fifth metatarsal to the baseball side, Further, it is known to be based on a so-called “tilting motion” in which the toes are kicked backward with the toes as the center and moved to the other leg (see, for example, Patent Document 1).

  Next, the foot arch structure acts as a shock absorber that is indispensable for flexibility during walking. In abnormal conditions such as abnormal reduction or enhancement of the arch structure, the foot arch structure functions as walking, running, and standing. It is known that it can be a cause of excessive mechanical stress (rotation stress, valgus stress, etc.) to load joints such as feet, knees, and hip joints. In addition, the arch structure of the foot consists of an inner longitudinal arch (an arc formed by the first metatarsal joint at the rear from the ground contact point of the rib with the scaphoid as the apex) and an outer longitudinal arch (the apex at the cubic bone). The rear is composed of the ground contact point of the ribs and the front is the arc created by the 5th metatarsophalangeal joint), and the lateral arch (the lateral arch created by the metatarsal joint and the lateral arc created by the tarsal bone). (For example, see Patent Document 2).

  Next, a shoe insole 51 that holds three arch structures (an inner longitudinal arch, an outer longitudinal arch, and a lateral arch) constituting a skeleton of a foot is known. As shown in FIG. 17A, the shoe insole 51 includes an insole body 52, and the insole body 52 is formed of a low-resilience urethane foam. The insole body 52 includes a convexly curved first main body raised portion 52a that holds the inner longitudinal arch of the foot skeleton and a convex curved surface that holds the outer longitudinal arch of the foot skeleton, as indicated by the alternate long and short dash line. And a convexly curved third main body raised portion 52c that holds the transverse arch of the foot skeleton.

  As shown in FIG. 17B, a reinforcing member 53 that reinforces the insole body 52 is provided only from the center side to the end side of the back surface of the insole body 52, and this reinforcing member 53 is compared to the low-resilience urethane foam. It is formed from a hard rubber sponge. Note that, as shown in FIGS. 17B to 17D, the reinforcing member 53 includes first to third reinforcing bulges at locations aligned with the first to third main body bulging portions 52a to 52c described above. Portions 53a to 53c are formed (see, for example, Patent Document 3).

  Next, a shank 61 with a cushioning function is known which is inserted between the midsole and the outsole so as to support the three arch structures (inner arch, outer arch, and front arch) that constitute the skeleton of the foot. Yes. As shown in FIG. 18A, in the shank 61 with a cushion function, the shank function portion 62 and the cushion function portion 63 are integrally formed, and the cushion function portion 63 has a size corresponding to the heel.

  As shown in FIG. 18 (B), the shank functional portion 62 corresponds to the inner arch that extends from the heel corresponding portion toward the toe corresponding portion, beyond the talus, scaphoid, and inner wedge bone to the first metatarsal bone. A part 64 and a lateral arch corresponding part 65 extending from the radius nodule through the cubic bone to the fifth metatarsal are formed. The shank function portion 62 has a raised structure 66 along the front arch.

  As shown in FIG. 18C, the cushion function portion 63 is formed with three through holes 67 in the thickness direction, and the cross-sectional shape of the through hole 67 is a trapezoidal shape that expands downward. Molded. With this structure, when weight is applied to the cushion function portion 63 via the ribs, the opening angle of the through hole 67 increases, and the cushion effect of the shank 61 with the cushion function is improved (see, for example, Patent Document 4). ).

JP 2006-6877 (page 3, FIG. 7) JP-A-9-224703 (page 3, FIGS. 19-21) JP 2007-136145 A (page 7-9, FIG. 1-3) JP 2007-283017 A (page 7-9, Fig. 1-3)

  As described above, in the conventional insole 51, the first to third main bodies that hold the arch structure of the foot (the inner vertical arch, the outer vertical arch, and the horizontal arch) with respect to the insole main body 52 and the reinforcing member 53. Raised portions 52a to 52c and first to third reinforcing raised portions 53a to 53c are formed. The shoe insole 51 holds the foot skeleton structure so that the central region of the arch structure becomes higher by individually supporting the arch structure of the foot by the insole body 52 and the reinforcing member 53.

  However, as shown in FIG. 17A, in the conventional insole 51, a reinforcing member 53 made of a rubber sponge with high hardness is joined to the back surface of the insole body 52 made of low-resilience urethane foam. Configured. Then, the insole body 52 and the reinforcing member 53 are formed in a hot press after being disposed in a state in which the sheets constituting each are overlapped in the mold apparatus. Therefore, as shown in FIGS. 17B to 17C, the shoe insole 51 has a structure in which the insole body 52 is joined to the upper surface of the reinforcing member 53, and the shoe insole 51 itself is It is substantially formed as a sheet shape and is not reinforced against foot displacement in the lateral direction. For this reason, there is a problem that the foot is easily displaced from side to side on the insole 51 in the shoe, and the foot is difficult to be fixed in the shoe, so that it is difficult to perform a stable “tilting exercise”.

  Further, in the conventional insole 51, the first to third main body raised portions 52a to 52c and the first to third reinforcing raised portions that hold the arch structure of the foot with respect to the insole main body 52 and the reinforcing member 53. 53a to 53c are formed. However, as described above, since the foot is easily displaced in the shoe, the soles are in contrast to the first to third main body raised portions 52a to 52c and the first to third reinforcing raised portions 53a to 53c. Therefore, there is a problem that it is difficult to accurately correspond to the position and it is difficult to sufficiently support the arch structure of the foot.

  Further, in the conventional insole 51, the reinforcing member 53 is disposed on the lower surface of the insole body 52 from the heel region to the formation region of the lateral arch of the foot skeleton, and when a load is received from the sole. The shoe insole 51 is flexible enough to be deformed according to the shape of the sole. Therefore, since the reinforcing member 53 is also deformed by receiving a load from the sole, there is a problem that it is difficult to sufficiently support the arch structure of the foot. Further, since the reinforcing member 53 is hard enough to be deformed into a sole shape by a load, there is a problem that it is difficult to fix the foot in the shoe, and it is difficult to perform a stable “tilting motion”.

  Further, the conventional insole 51 is provided with first to third main body raised portions 52a to 52c and first to third reinforcing raised portions 53a to 53c to individually hold the arch structure of the foot. The central region of the arch structure is not directly held. Therefore, there is a problem that the arch structure of the foot is likely to collapse gradually from the central region due to a decrease in muscle strength accompanying aging. Details will be described in the column of the mode for carrying out the invention. However, since the arch area including the inner vertical arch is lowered, it is easy to become a “flat foot walking” caused by flat feet, and the “tilting exercise” is efficient. There is a problem that the load on the toes of the first heel increases, it is difficult to obtain a smooth driving force, and a fall or the like is induced during walking.

  Next, in the conventional shank 61 with a cushion function, the shank function portion 62 and the cushion function portion 63 are integrally formed, and the shank function portion 62 is curved to match the arch structure of the foot, and the inner arch corresponding portion 64 and the outer side It is branched to the arch corresponding part 65. As shown in the figure, the shank 61 is partially arranged with respect to the sole, and is curved in accordance with the arch structure of the foot so as to individually support the arch structure of the foot.

  In the “tilting motion”, the center of gravity of the load applied to the heel by landing moves along the outside of the sole and moves to the bone head of the fifth metatarsal, and the substantial load is applied to the sole of one foot. In the process of applying, the structure is such that the load applied to one leg by the shank 61 is supported. However, as shown in FIG. 18 (C), the shank functional portion 62 is curved and floated with respect to the insole of the shoe, so that it is difficult to balance the sole, and the posture during the “tilting exercise” There is a problem that it becomes difficult to maintain.

  Similarly, in the case of the conventional shank 61, the shank 61 is formed as a plate-like body, so that it is difficult to cope with the lateral displacement in the shoe, and the foot is easily displaced from side to side in the shoe. There is a problem that it is difficult to perform a stable “tilting exercise” at times. In addition, there is also a problem that due to the shift of the foot in the shoe, the reinforcing part of the foot by the shank 61 is also shifted, and the function as the shank 61 is not sufficiently exhibited. Further, the branch shape of the shank functional portion 62 is a structure that actively supports only the inner longitudinal arch and the outer longitudinal arch of the foot skeleton, and the central region of the foot arch structure (below the skeleton of the second and third heels) ) Is not supported, the arch structure easily collapses from below the third skeleton, and there is a problem that the “degree of tilt” described later decreases.

  Moreover, in the structure which supports in the state which lifted the outside vertical arch like the conventional shank 61, the center area | region of an arch structure is lifted more than necessary, and it will be in the state near a tiptoe, and from the heel to the 5th heel There is a problem that the center of gravity is not smoothly moved toward the base of the toes, and the efficient center of gravity movement of the “tilting motion” is easily inhibited. Furthermore, it becomes a state close to the above-mentioned toe stand, and the burden of the load on the lateral arch of the skeleton increases because the center of gravity of the load tends to concentrate on the lower side of the toes of the first to fifth toes, The movement of the toes is obstructed, making it difficult for the toes to grab. As a result, the force of pinching the toes and the force of kicking the ground with the toes declines, the efficiency of the “tilting exercise” decreases, and there is a high possibility that whispering and falling during walking are high.

  Moreover, in the conventional shank 61, the three through-holes 67 are formed in the thickness direction of the cushion function part 63, but there exists a problem that air permeability and water permeability are difficult to be ensured as the shank 61 whole. Furthermore, since the through hole 67 itself is large and the cushion function portion 63 is deformed by a load, there is a problem that it is difficult to obtain a desired mechanical strength as a support member.

  As described above, the products supporting the conventional skeleton, such as the shoe insole 51 and the shank 61, individually lift the three arch structures of the foot skeleton (inner longitudinal arch, outer longitudinal arch, and lateral arch). It is formed on the premise of supporting. Although details will be described in the present embodiment, in the support member of the present invention, the skeleton constituting the fourth heel and the fifth heel is arranged as a base of the skeleton of the foot, and the fourth heel and the fifth heel are arranged. Paying attention to the skeleton shape in which the skeletons constituting the first heel to third heel are arranged in a fan shape from above the skeleton, supporting the sole on the heel region side with a flat surface and a curved surface from the lateral arch structure, Improves stability behind the scenes and increases the efficiency of the “Aori Movement”, but there are no such products in the world, and such products are entering into the world's top-class aging society. Is required.

  The present invention has been made in view of the circumstances described above, and in the support member of the present invention, the sole of the region extending from the front of the bone head on the rib side of the metatarsal bone of the first to fifth ribs to the ribs. In a supporting member used by being arranged on footwear, having first and second bottom surfaces to be supported, and a side surface supporting at least a side surface of a foot on the metatarsal side of the fifth rib from the periphery of the rib The sole is supported by at least the first bottom surface formed into a flat surface and the second bottom surface formed into a curved surface convex with respect to the back surface of the foot, It is formed continuously with the first bottom surface, and supports the arch region of the sole.

  Further, in the shoe insole using the support member of the present invention, in the shoe insole in which the sole member made of a material softer than the support member is joined to the contact surface side of the support member, the shoe of the sole member On the bottom side, a transverse arch protection member is arranged below a transverse arch constructed across the joints of the metatarsals of the first to fifth heels.

  In the present invention, the foot skeleton is supported by a support member having a flat first bottom surface and a curved second bottom surface, so that the foot skeleton is supported at a suitable position, and the stable “tilt motion” Is realized.

  Further, in the present invention, the support member is made of a resin material containing a fiber cloth as a base material, and is molded from a material that has a porous structure when solid, thereby having light weight and mechanical strength, It has a structure with excellent water permeability.

  Further, in the present invention, the support member firmly fixes the heel part of the foot and the side surface of the foot in the footwear, thereby preventing the lateral displacement of the foot in the footwear and realizing a stable “tilting motion”. .

  Further, in the present invention, the support member supports the skeleton of the foot that forms the recessed region located in the arch region, including the inner vertical arch, so that the shock absorbing function inherent to the skeleton can be obtained.

  Further, in the present invention, the shoe insole is formed by joining a sole member made of a flexible material to the above-mentioned contact surface side of the support member, and further, by arranging a lateral arch protection member on the sole member, The arch structure of the skeleton of the foot is supported, and a stable “tilting motion” is realized.

  Further, according to the present invention, since the main ball protection member and the buttocks protection member are disposed on the sole member of the shoe insole, foot pain is reduced, and the amount of abrasion of the sole member is also reduced.

BRIEF DESCRIPTION OF THE DRAWINGS It is (A) perspective view, (B) perspective view, (C) schematic drawing explaining the support member in embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS (A) Perspective view, (B) Perspective view, (C) Perspective view for explaining a foot skeleton in an embodiment of the present invention. It is a figure explaining the "tilting exercise | movement" in embodiment of this invention. It is (A) schematic and (B) actual measurement figure explaining the "tilting degree" in embodiment of this invention. It is (A) sectional drawing explaining the support member in embodiment of this invention, (B) sectional drawing. It is (A) sectional drawing, (B) sectional drawing, (C) sectional drawing explaining the supporting member in embodiment of this invention. It is a (A) perspective view, a (B) perspective view, and a (C) side view for explaining a shoe insole using a support member in an embodiment of the present invention. (A) It is a figure explaining the measurement data at the time of using the conventional insole in embodiment of this invention, (B) It is a figure explaining the measurement data at the time of using a supporting member. (A) It is a figure explaining the measurement data at the time of using the conventional insole in embodiment of this invention, (B) It is a figure explaining the measurement data at the time of using a supporting member. (A) The figure explaining the balance state at the time of using the conventional insole in embodiment of this invention, (B) The figure explaining the balance state at the time of using a supporting member. (A) It is a figure explaining the measurement data at the time of using the conventional insole in embodiment of this invention, (B) It is a figure explaining the measurement data at the time of using a supporting member. (A) It is a figure explaining the measurement data at the time of using the conventional insole in embodiment of this invention, (B) It is a figure explaining the measurement data at the time of using a supporting member. (A) The figure explaining the balance state at the time of using the conventional insole in embodiment of this invention, (B) The figure explaining the balance state at the time of using a supporting member. (A) It is a figure explaining the measurement data at the time of using the conventional insole in embodiment of this invention, (B) It is a figure explaining the measurement data at the time of using a supporting member. (A) It is a figure explaining the measurement data at the time of using the conventional insole in embodiment of this invention, (B) It is a figure explaining the measurement data at the time of using a supporting member. (A) The figure explaining the balance state at the time of using the conventional insole in embodiment of this invention, (B) The figure explaining the balance state at the time of using a supporting member. It is the (A) top view, (B) sectional view, (C) sectional view, (D) sectional view explaining the insole in the conventional embodiment. It is the (A) side view, (B) top view, (C) perspective view explaining the shank with a cushion function in the conventional embodiment.

  Below, the supporting member which is one embodiment of this invention is demonstrated. 1A and 1B are perspective views for explaining a support member of the present embodiment. FIG. 1C is a schematic diagram for explaining an arrangement region in the shoe of the support member of the present embodiment. FIGS. 2A to 2C are perspective views for explaining the skeleton of the foot shown in “Separate Anatomy Atlas (Bunkodo)”. FIG. 3 is a diagram for explaining the “tilting motion” shown in “Anatomy Atlas Prometheus (Medical School)”. 4 (A) and 4 (B) are diagrams for explaining the aging change of “degree of tilt” shown in “Encyclopedia of Feet (Asakura Shoten)”. 5A and 5B are cross-sectional views for explaining the support member of the present embodiment. 6A to 6C are cross-sectional views for explaining the support member of the present embodiment. In the following description, the arch area is described as an area arranged on the sole.

  FIG. 1A is a perspective view of the support member 1 as seen from the side of the contact surface. The support member 1 is a member for fixing and supporting a foot and its skeleton arranged in a shoe at a suitable position, and is bent along the shape of the sole when receiving a load such as weight from the foot. It is desirable to have a degree of hardness that does not cause deformation such as squeezing. The support member 1 is a member that is supported to absorb and buffer the impact by the skeleton structure of the foot when receiving a load from the foot. For example, heat, such as plastic, cork, polyvinyl chloride, or ABS resin, is supported. It is molded from a plastic resin or a thermosetting resin.

  In the present embodiment, as the material of the support member 1, a medical fixing material (gypsum material) used for fixing the affected part at the time of fracture or the like, for example, Lenatherm Plus Pack (manufactured by Paul Hartmann Co., Ltd.) is used. Lenatherm Plus Pack is a roll-shaped cast bandage in which a thermoplastic polyester resin is applied to a polyester base fabric. After the cast bandage is softened by putting it in, for example, hot water of 70 degrees or more, the support member 1 is molded. The support member 1 is formed by curing in the mold. And the Lenatherm Plus Pack is already formed into a porous shape at the time of roll-shaped cast bandage, and it is supported by softening and maintaining the porous shape after curing in the mold. The member 1 has a structure having air permeability and water permeability. Moreover, by using a polyester base fabric, it is not too hard with respect to human skin, and the discomfort to the sole and the foot side surface at the time of wearing is prevented. Furthermore, since Renatherm Plus Pack is used as a medical fixing material (gypsum material), it has light weight and mechanical strength and is suitable as a material for the support member 1. As a result, the support member 1 is disposed so as to cover the shoe bottom surface and the like in the shoe, but the breathability and water permeability in the shoe are ensured, and it does not deform along the sole shape due to the load from the sole. A certain degree of strength is ensured. The support member 1 has a constant thickness of, for example, about 3 mm, and mainly hangs on the lateral arch of the foot skeleton (for example, an arc formed by the joints of the metatarsals of the first to fifth heels). It is arranged to support the area from no area to the ribs. The support member 1 is used by being disposed in a shoe. For example, in a shoe having a shoe insole, the support member 1 is disposed between the shoe sole and the shoe insole.

  The medical fixing material (gypsum material) may have at least mechanical strength and air permeability by a porous structure. For example, a plurality of fiber reinforced plastics (FRP) may be formed in a multi-layered network. Even when the support member 1 having a porous structure is formed by interweaving and including a fibrous body such as a nonwoven fabric between the multilayers or on the surface thereof, and the material is heated and cured in a mold. good. Examples of the fiber reinforced plastic (FRP) include glass fiber reinforced plastic (GFRP), carbon fiber reinforced plastic (CFRP), and polyethylene fiber reinforced plastic (DFRP).

  In addition, it is a sheet-shaped fixing material in which a glass fiber knitted fabric coated with a water-curable polyurethane resin is laminated, and the surface is covered with a plastic mesh film. The support member 1 having a porous structure may be formed by curing. In addition, the support member 1 may be formed from a material including a fibrous body in a porous structure epoxy resin or a porous structure photocurable resin.

  The support member 1 mainly includes a first bottom surface 2, a second bottom surface 3, and a side surface 4. The back surface of the foot mainly includes a first bottom surface 2 composed of flat surfaces arranged on the fourth and fifth heel sides and a second curved surface arranged on the first to third heel sides. The bottom surface 3 is supported. Further, the side surface of the foot is continuous with the first and second bottom surfaces 2 and 3 described above, and is supported by the side surface 4 disposed at least around the metatarsal bone of the fifth heel from the heel region. That is, the support member 1 mainly supports the first and second bottom surfaces 2 and 3 on the back surface of the foot from the front of the joint (bone head) of the metatarsal bones of the first to fifth ribs to the ribs. Thus, the stability of the foot and the posture are improved when the first bottom surface 2 is in a posture in which almost all the load is applied to the sole, such as when walking or standing upright. Furthermore, by maintaining the foot skeleton in an appropriate position by the second bottom surface 3, it is possible to increase the efficiency of the “tilting exercise” while realizing the distribution of the load on the sole and the absorption of the impact. Further, by supporting the arch area of the sole with the second bottom surface 3 being lifted, the muscles and blood vessels in the arch area can be stimulated appropriately, and the muscles and blood flow can be positively affected.

  FIG. 1B is a perspective view of the support member 1 as seen from the shoe bottom side. The first bottom 2 of the support member 1 on the shoe bottom side is also formed as a flat surface. An alternate long and short dash line indicates the outer end 5 of the first bottom surface 2 of the support member 1, and indicates a region where the first bottom surface 2 of the support member 1 intersects the second bottom surface 3 and the side surface 4. The support member 1 is not easily deformed with respect to the load from the sole, and when the load is applied to the support member 1 from the sole, the first bottom surface 2 bends and the outer edge 5 is the back surface of the foot. Rather than bend in the direction of wrapping, the first bottom surface 2 is kept flat so that the support member 1 is prevented from being laterally displaced in the shoe.

  FIG. 1C is a diagram illustrating a region where the support member 1 is disposed with respect to the shoe bottom surface in the shoe. An alternate long and two short dashes line indicates a shoe bottom surface, and a region indicated by a solid line indicates an arrangement region of the first bottom surface 2 of the support member 1. Moreover, the area | region shown with hatching of a diagonal line shows the arrangement | positioning area | region of the 2nd bottom face 3 of the supporting member 1. FIG. As shown in the figure, the first bottom surface 2 that is a flat surface is arranged in substantially the same shape for the heel region of the shoe bottom surface, and the second bottom surface that is a curved surface for the region including the arch region. 3 is arranged. Although the details will be described later, the second bottom surface 3 lifts and supports the foot skeleton from the bottom surface of the skeleton constituting the third heel, and therefore the first bottom surface 2 extends along the outer edge of the shoe bottom surface. However, it is arranged slightly inside the outer edge of the inside. The second bottom surface 3 is arranged from the shoe bottom surface to the arch region so as to correspond to the arch region formed on the shoe side.

  Here, a portion corresponding to the arch region on the shoe side is usually formed of a relatively flexible resin such as polyurethane, and vinyl, synthetic leather, or the like, which is the outer shape of the shoe, is disposed on the outside thereof. Therefore, by tilting the foot inward (first heel side), the arch area is easily crushed, and the inner longitudinal arch (with the scaphoid vertices as the apex, the rear from the ground contact point of the rib is the first middle footpad) The skeleton including the arc formed by the articulated joint becomes difficult to be supported, and the skeleton structure is easily broken. However, since the second bottom surface 2 of the support member 1 supports the skeleton including the inner vertical arch of the arch area in a state of being lifted by its hardness, it is related to the material of the arch area on the shoe side and the material of the shoe outer shape. And the collapse of the skeleton including the inner longitudinal arch is prevented.

  FIG. 2A is a perspective view of the foot skeleton as seen from above. FIG. 2B is a perspective view of the foot skeleton as seen from the outer surface side (fifth heel side). FIG. 2C is a perspective view seen from the inner side (first heel side) of the skeleton of the foot.

  As shown in FIG. 2A, the skeleton of the foot is mainly the tarsal bone 6 (radius, talus, scaphoid, cuboid, wedge-shaped bone), metatarsal bone 7 (first to fifth medium). Foot bones) and ribs 8 (base phalanx, middle phalanx, distal phalanx). In the following description, from the viewpoint of structural engineering, the foot skeleton is divided into skeletons constituting the first to third heels that are not hatched and skeletons constituting the fourth heels and the fifth heels that are sand-like hatched. It explains separately. And the skeleton which comprises the 1st to 3rd collar is arrange | positioned from the upper side of the skeleton which comprises the 4th collar and the 5th collar on the radius side.

  Specifically, the skeleton constituting the fourth heel and the fifth heel is the rib 9, the cubic bone 10, the fourth heel metatarsal bone 11, the fifth heel metatarsal bone 12, and the base of the fourth heel. It is composed of a bone 13, a middle phalanx 14, a distal phalanx 15, a fifth heel proximal phalanx 16, a middle phalanx 17, and a distal phalanx 18. On the other hand, the skeletons constituting the first to third heels are the talus 19, the scaphoid 20, the inner wedge 21 of the first heel, the metatarsal bone 22, the proximal phalanx 23, the distal phalanx 24, and the second heel bone. Intermediate wedge 25, metatarsal bone 26, proximal phalanx 27, middle phalanx 28, distal phalanx 29, third wedge outer wedge 30, metatarsal 31, proximal phalanx 32, middle phalanx 33, distal phalanx 34.

  As shown in FIG. 2 (B), the skeleton constituting the fourth and fifth ridges indicated by sand-like hatching is the outer longitudinal arch (for example, the cubic bone 10 is the apex and the rear is from the grounding point of the rib 9). The front has an arc formed by the joint of the metatarsal bone 12 of the fifth rib), but is mainly arranged linearly from the rib 9 to the rib 8 side along the sole. On the other hand, a part of the skeleton constituting the first heel to the third heel is arranged on the upper side of the skeleton constituting the fourth heel and the fifth heel so as to spread like a fan from the rib 9 toward the rib 8 side. Placed in. A lateral arch is formed below the joints (skulls) of the metatarsals of the first to fifth heels so as to have a lateral foot arch-shaped depression region. The bone 26 is the highest.

  As shown in the drawing, the depression region 35 formed by the outer vertical arch is higher than the depression region 36 below the skeleton constituting the first to third ridges described later with reference to FIG. It is a region that is low and narrow. The dotted lines indicate the skin line of the foot, but the soles below the skeletons of the fourth and fifth heels including at least the outer longitudinal arch are substantially flat. Alternatively, the soles below the skeletons of the fourth and fifth heels are substantially flat, although the lower part of the outer vertical arch is slightly depressed.

  As shown in FIG. 2 (C), the skeletons constituting the first to third ribs are arranged so as to spread in a fan shape from the rib 9 toward the rib 8 side, and the first to third ribs are arranged. Under the skeleton, a hollow area 36 (including the above-described inner vertical arch) is formed with respect to the sole. Since the skeleton structure of the foot has the hollow region 36, the foot can be applied to uneven ground. Furthermore, since the skeletons constituting the first to third ridges have a hemispherical skeleton structure so as to have the depression region 36, an impact buffering function can be achieved by efficiently dispersing a load such as weight applied to the foot. Fulfill.

  As shown in the figure, the dotted line shows the line of the skin of the foot, but an arch region 37 is formed along the dent region 36 on the sole, and the arch region 37 is securely depressed with respect to the sole. This prevents the foot from becoming flat and allows the “tilting exercise” to be performed efficiently.

  Although not shown, the bones constituting the skeleton described above are connected by various ligaments, around which various glands such as tendon sheath, muscle, nerve, blood vessel, sweat gland are arranged, Covered by skin. Muscles, nerves, blood vessels, and the like are disposed in the above-described depression region 36 from the tibia side of the foot through the inside of the rib 9. As will be described in detail later, since the skeletal structure of the foot is supported by ligaments and muscles, for example, the skeletal structure of the foot cannot be maintained due to a decrease in muscle strength due to aging, etc. Thus, various problems such as a decrease in “tilting motion” and fatigue of the foot are likely to occur.

  Here, the “tilting exercise” will be described with reference to FIGS. 3 and 4.

  FIG. 3 is a diagram showing the movement of the foot and the ground contact area of the sole during the “tilting exercise”. In addition, the hatching area | region of a sole shows the earthing | grounding area | region with the ground. FIG. 3 shows the movement of the right foot during the “tilting exercise” from the left side to the right side of the drawing.

  As shown in the figure, in the “tilting motion”, the user touches the ground from the heel of the right foot, contacts the ground from the sole outside the hollow region 36 including the above-described inner vertical arch, and starts to load gradually. When the bases of the toes of the first to fifth toes are also in contact with the ground, almost all loads are supported by the soles. As described above, the lower part of the skeletons of the fourth and fifth ridges are grounded and become a region to which a load is applied, so that the load is easily dispersed by arranging the first bottom surface 2 in this region, It becomes easy to maintain a stable posture. In addition, the lower part of the arch of the horizontal arch, including the fan-shaped areas of the first to third ridges, temporarily disappears and becomes a ground contact area when almost all the load is applied. For this reason, the support member 1 that supports the lateral arch is not arranged. Even in a state where almost all the load is applied, the arch region does not become a ground contact region, and therefore the second bottom surface 3 of the support member 1 is reliably supported from below.

  Next, the toes of the first toe touch the ground from the fifth toes and move the center of gravity of the load on the sole to the front (traveling direction) (by pronation) The center of gravity of the load moved along the outside of the sole from the base moves from the root of the metatarsal bone 12 (bone head) of the fifth heel to the base of the toes of the first heel (the base ball). In this state, the heel side of the sole is away from the ground, and the first to fifth toe root portions and the toes of the sole are grounded. Finally, in a state where a load is applied to the base of the toes of the first toe (the mother ball), a propulsive force that moves forward is obtained by kicking the ground with the toes of the first toe. Then, while the right foot is kicked backward, the left foot lands on the ground from the heel and performs the same operation as described above.

  As shown in FIG. 4A, “tilting degree (W1) mm” is a point where a straight line connecting the heel end and the nail tip of the force point locus is drawn, and the midpoint and the perpendicular bisector intersect the locus. And the distance.

  As shown in FIG. 4B, the degree of tilt (W1) in the 20s to 40s range is 20 mm, and the value of the degree of tilt (W1) / foot width is 0.2 units. On the other hand, in the 50-year-old range, the degree of tilt (W1) is in the 10 mm range, and the value of the degree of tilt (W1) / foot width is 0.1. And as the age increases to the 60s and 70s, the degree of tilt (W1) and the value of the degree of swing (W1) / foot width also decrease. The decrease in the degree of warp (W1) due to aging is presumed to be due to the collapse of the skeleton of the foot due to the decrease in muscle strength and the depression region 36 (see FIG. 2C) including the inner longitudinal arch. . As a result, elderly people are more likely to suffer from unformed flat feet with the arch area of the sole as they age, and the shock-absorbing function by the skeleton of the foot is greatly reduced, so that the load applied to the foot and the impact from the ground Is not relaxed, and fatigue to the foot tends to accumulate. In addition, elderly people are prone to “foot walking” due to their flat feet, the “tilting exercise” is not performed efficiently, the burden on the toes of the first heel is increased, and smooth propulsion is obtained. It becomes difficult.

  That is, even in an elderly person whose muscle strength has declined, the foot skeleton is maintained so that the depression region 36 of the foot skeleton is maintained by supporting the arch region 37 of the sole by the second bottom surface 3 of the support member 1. Walking in a state of being arranged at an appropriate position is realized. And the skeletal structure of an elderly person's leg | foot also recovers the shock buffering function similarly to the skeleton structure of legs, such as 20 years old grades, and "anchor movement" is performed efficiently.

  FIG. 5A is a cross-sectional view of the support member 1 shown in FIG. FIG. 5B is a cross-sectional view of the support member 1 shown in FIG. 5 (A) and 5 (B) also illustrate bones constituting the foot skeleton located in the cross section of the support member 1, and refer to the description of FIG. 2 as appropriate. A two-dot chain line indicates a shoe line in the shoe.

  The cross section shown in FIG. 5A is a cross section including the arch region of the foot. Then, the first to third wedge wedge bones 21, 25, 30, the fourth and fifth rib bones 10, and the fifth rib metatarsal bone 12 are arranged from the left side of the page, and the wedge bones 21, 25 are arranged. , 30 is provided with a recessed region 36.

  As shown in the figure, the first bottom surface 2 of the support member 1 is formed as a flat surface and is disposed on the lower surface of the skeleton constituting at least the fourth and fifth ribs. In this cross section, the first bottom surface 2 is arranged up to a part of the lower surface of the fourth heel and third cuboid bone 10, the lower surface of the fifth heel metatarsal bone 12, and the third heel bone 30. Is done. As shown in the hatched area of FIG. 3, the lower surfaces of the skeletons constituting the fourth and fifth heels support almost all loads on the soles at least during “tilting” such as when walking or when standing upright. It is an area. And the 1st bottom face 2 of the supporting member 1 is arrange | positioned on the lower surface of the area | region which supports the load, stability of a leg | foot is improved and the stability at the time of the posture is also improved. As described above, the outer end 5 of the support member 1 is arranged as a corner, and even if the outer end 5 bites into the shoe bottom side due to a load, the support member 1 may be laterally displaced in the shoe. Preventive effect is obtained.

  Further, the second bottom surface 3 of the support member 1 extends from the lower side of the third heel to the sole side so that the metatarsal bone 25 of the second heel is disposed at the highest position (located at the top of the lateral arch). It is shaped as a convex curved surface and supports the arch area of the sole in a lifted state. In this cross section, the second bottom surface 3 is disposed on the lower surfaces of the wedge-shaped bones 21, 25, and 30 of the first to third ribs and supports the skeleton formed by the above-described hollow region 36. That is, the second bottom surface 3 supports the depression region 36 as the foot skeleton structure from the third heel side than the above-described inner vertical arch, thereby realizing load distribution and shock absorption on the sole. The Since the arch area of the sole is supported in a state where it is lifted by the second bottom surface 3, it is difficult for the foot to walk due to flat feet, and the arch area is moderately stimulated. On the other hand, good health effects such as supporting blood flow can be obtained.

  Furthermore, as indicated by a circle 38, the second bottom surface 3 of the support member 1 is disposed from the skeleton side of the fourth heel and the fifth heel with respect to the end portion of the shoe bottom indicated by a two-dot chain line. Thus, the skeleton constituting the recessed region 36 is reliably supported by the second bottom surface 3. On the other hand, the side surface 4 of the support member 1 is disposed up to a height at least overlapping with a skeleton constituting the fifth heel, here, a part of the metatarsal bone 12 of the fifth heel. With this structure, the foot in the shoe is slightly inclined from the inner surface side (first heel side) to the outer surface side (fifth heel side) by the second bottom surface 3. 4 supports the side surface of the foot on the skeleton side that constitutes the fifth heel, thereby preventing a foot slip in the shoe.

  As shown in the figure, the side surface 4 of the support member 1 is also arranged on the second bottom surface 3 side of the support member 1 to a height that overlaps at least a part of the wedge-shaped bone 21 of the first heel, Although the effect of preventing foot slip can be obtained, the present invention is not limited to this case. As described above, by supporting the arch area by the second bottom surface 3, the foot is slightly inclined toward the fifth heel side. Therefore, the side surface 4 on the second bottom surface 3 side may not be disposed.

  The cross section shown in FIG. 5B is a cross section of the heel region of the foot. Then, the talus 19 constituting the first to third ribs is arranged on the upper surface of the ribs 9 constituting the skeletons of the fourth and fifth ribs. As described above, the foot heel region is a ground contact region with respect to the ground as shown by hatching in FIG. 3 during the “tilting motion” or in the upright posture. By arranging the bottom surface 2 of the foot, the stability of the foot is improved, and the stability in the posture is also improved.

  Here, as described above with reference to FIG. 3, the rib 9 in the heel region is covered with thick fat or the like in order to alleviate the impact at the time of landing of the “tilting motion”. The side surface 4 of the support member 1 is disposed at least around the rib 9 in the rib region, and the side surface 4 of the support member 1 is disposed to a height that overlaps at least a part of the rib 9. And it is arranged in almost the same shape along the heel region of the shoe to prevent lateral spread of fat and the like, and the heel region is firmly fixed, preventing the lateral displacement of the foot in the shoe Is obtained.

  Even in the heel region, the outer end 5 of the support member 1 is arranged as a corner, so that the support member 1 itself can be prevented from shifting in the shoe.

  FIG. 6A is a cross-sectional view of the support member 1 shown in FIG. FIG. 6B is a cross-sectional view of the support member 1 shown in FIG. FIG. 6C is a cross-sectional view of the support member 1 shown in FIG. 6 (A) to 6 (C) also show bones constituting the foot skeleton located in the cross section of the support member 1, and refer to the description of FIG. 2 as appropriate. A two-dot chain line indicates a shoe line in the shoe.

  The cross section shown in FIG. 6A is a cross section in which a fifth skeleton is mainly disposed. In this cross section, the rib 9, the cubic bone 10, and the metatarsal bone 12 constituting the fifth rib are arranged, and the side surface 4 on the fifth rib side of the support member 1 is indicated by a dotted line for convenience of explanation. .

  As described above, at least the lower surface of the skeleton constituting the fourth and fifth heels from the heel region is a region that supports almost all the load on the sole of the foot when performing "tilting exercise" such as walking. Therefore, the first bottom surface 2 of the support member 1 is disposed, and the stability of the foot when supporting almost the entire load is improved, and the stability in the posture is also improved.

  Here, as described in FIG. 2B, the skeletons of the fourth and fifth ribs are linearly arranged toward the rib 8 side, and support the skeletons of the first to third ribs from below. The skeleton is the foundation of the soles. The soles below the skeletons of the fourth and fifth heels including the outer vertical arch are substantially flat surfaces. Therefore, the skeleton structure of the foot becomes an arch that is higher than necessary by arranging the first bottom surface 2 that is a flat surface, not a curved surface along the hollow region 35, below the outer vertical arch. Is prevented. The center of gravity of the load on the soles during walking and the like smoothly moves from the heel region to the base side of the fifth toe without being obstructed below the outer vertical arch. "Exercise" is promoted and its efficiency is increased.

  The first bottom surface 2 of the support member 1 is disposed up to the front of the joint (skull portion) of the metatarsal bone 12. In the “tilting motion”, a pronation motion is performed from the fifth heel side to the first heel side along the above-described lateral arch. Therefore, the first bottom surface 2 is disposed in the region, so that the support member 1 is hardened. This is because it becomes difficult to perform the operation, and the efficiency of the “tilting exercise” is deteriorated. Further, since the support member 1 is not disposed under the toes, the toes can move during the kicking out of the pronation movement of the “tilting exercise”, and the force to grab the ground by the toes and the force to kick out Can be efficiently transmitted to the ground, and stability during “tilting exercise” is improved.

  Further, as described above, on the skeleton side of the fifth heel from the heel region, the side surface 4 of the support member 1 has a height that overlaps at least a part of the rib 9 and the metatarsal bone 12, and the side surface in the shoe. Since the side surface 4 prevents the foot from shifting on the upper surface of the support member 2, the foot position in the shoe is fixed.

  The cross section shown in FIG. 6B is a cross section in which the second heel skeleton is mainly disposed. In this cross section, the talus 19, the scaphoid bone 20, the wedge-shaped bone 25, and the metatarsal bone 26 constituting the second heel are disposed, and the talus 19 is disposed on the upper surface of the calcaneus 9. As described above, the vertical arch-shaped depression region 36 is formed below the skeleton constituting the first to third heels with respect to the sole. The hollow region 36 is supported by the second bottom surface 3 of the support member 1 at least from below the skeleton of the third rod, so that the skeletal structure is collapsed due to a decrease in muscle strength, etc., and the flatness is reduced, and the “degree of tilt” is reduced. Is prevented.

  Here, as described in FIG. 2C, the skeletons of the first to third ridges are arranged so as to spread in a fan shape toward the rib 8 side. Therefore, the second bottom surface of the support member 1 is arranged so that the skeleton constituting the second ridge is arranged at the highest position among the skeletons of the first ridge to the third ridge, similarly to the skeleton structure of the lateral arch. 3 is arranged. With this structure, the skeletons of the first heel to the third heel form a suitable vertical footbow-shaped hollow region 36, and the above-described effects can be obtained, while the skeleton of the first heel to the third heel is expanded. It is prevented from suffering from an open leg.

  As described above, the second bottom surface 3 of the support member 1 is disposed only up to the front of the joint (skull portion) of the metatarsal bone 26, but mainly on the entire sole of the arch region. To support. With this structure, most of the metatarsals 22, 26, and 31 of the first to third ribs are supported by the second bottom surface 3 so that the lateral arch is formed in the vicinity of the joint portion of the metatarsals. However, the skeleton structure of the second ridge is located at the top of the horizontal arch. That is, the second bottom surface 3 is disposed below the horizontal arch and does not directly support the horizontal arch, but the skeleton structure of the horizontal arch can also be supported at a suitable position. As will be described later in the description of the shoe insole 41 in which the support member 1 and the sole member 42 are combined, the lateral arch of the skeleton is further suitably supported by being combined with the lateral arch protection member 43.

  The cross section shown in FIG. 6C is a cross section in which the first skeleton is mainly disposed. In this cross section, the talus 19, the scaphoid 20, the wedge bone 21 and the metatarsal bone 22 constituting the first heel are arranged. In this cross section, the second bottom surface 3 of the support member 1 is disposed below the scaphoid bone 20, so that the skeleton constituting the above-described hollow region 36 including the inner longitudinal arch is the second of the support member 1. Supported by the bottom surface 3. As described above, the second bottom surface 3 of the support member 1 is disposed up to the front of the joint (skull portion) of the metatarsal bone 22.

  In the present embodiment, the case where the first bottom surface 2 of the support member 1 is disposed at least below the bones constituting the skeletons of the fourth and fifth ribs has been described. However, the present invention is limited to this case. It is not something. Arbitrary design changes can be made from both the viewpoints of the stability by the first bottom surface 2 that is a flat surface and the maintenance of the skeleton structure by the second bottom surface 3 that is a curved surface. It is only necessary to support the arch area from the inside of the arch and maintain a suitable skeleton structure so that the metatarsal bone, which is the skeleton of the second heel, is located at the top, and the arrangement area of the first bottom surface 2 can be arbitrarily designed It can be changed.

  Moreover, although the case where the external shape edge part 5 of the 1st bottom face 2 of the supporting member 1 turns into a corner | angular part was demonstrated, it does not limit to this case. It is sufficient that the support member 1 does not slide sideways with respect to the shoe bottom surface. For example, the tip of the outer end portion 5 may be slightly rounded when the support member 1 is formed. Alternatively, the adhesive resin may be filled in the gap between the support member 1 and the bottom of the shoe, and the gap between the two may be filled and the gap between the two may be filled with a flexible cushioning material.

  Moreover, although the case where the supporting member 1 was arrange | positioned between the bottom part in shoes and the shoe insole with respect to the shoes which have a shoe insole was demonstrated, it does not limit to this case. For example, in footwear having no insole such as slippers or sandals, the support member 1 may be embedded in the bottom of the footwear or may be disposed on the bottom surface.

  Further, the support member 1 is not only suitable for shoes used by children with undeveloped muscle strength or shoes used by elderly people who tend to have weak muscle strength, and is used by people with a certain muscle strength that has no problem with the arch structure of the skeleton. Even in this case, the same effects as described above, such as foot stability, can be obtained by the support of the support member 1. Therefore, the support member 1 can be used for various sports shoes such as running shoes and walking shoes, golf shoes, soccer games, and baseball games. Furthermore, since the support member 1 is thin and is formed with a constant thickness, it can be applied to a shoe having a narrow space in the shoe, such as a leather shoe for work. In addition, various modifications can be made without departing from the scope of the present invention.

  Next, a shoe insole using the support member 1 according to another embodiment of the present invention will be described. FIGS. 7A and 7B are perspective views for explaining a shoe insole using the support member 1 of the present embodiment. FIG. 7C is a side view for explaining a shoe insole using the support member 1 of the present embodiment. The support member 1 has been described with reference to FIGS. 1 to 6, and the description is appropriately referred to, and the same reference numerals are used for the same components.

  FIG. 7A is a perspective view of the shoe insole 41 viewed from the shoe bottom side (back side), and the shoe insole 41 is bonded to, for example, the contact surface side (front side) of the support member 1. The sole member 42 is bonded by the material. Unlike the support member 1, the sole member 42 is intended to protect the sole and the side surfaces of the foot so as to wrap, and is processed over the entire sole by processing a flexible material into a sheet shape. The sole member 42 is made of a material having excellent flexibility such as soft foam resin, fabric, leather, artificial leather, and non-woven fabric, and a material used in the industry can be used. Since the sole member 42 is disposed between the support member 1 and the sole, the support member 1 is not easily deformed when loaded on the sole, but the sole member 42 conforms to the sole shape. By being deformed, it functions as a cushioning material between the support member 1 and the sole.

  As shown in the figure, a lateral arch protection member 43 and a mother ball protection member 44 made of a flexible material such as a soft foam resin or sponge are bonded to the shoe bottom side (back side) of the sole member 42. The As described above, the support member 1 is disposed up to the front of the lateral arch of the foot skeleton, and the support member 1 is not disposed on the lower surface of the lateral arch. Therefore, the flexible lateral arch protection member 43 is arranged in accordance with the top of the lateral arch so that the skeleton of the second heel is the highest, and the lateral arch of the skeleton is supported, so that it can be rotated by the lateral arch. The internal movement is supported, the toes are easy to grasp, the efficiency of the “tilting exercise” is improved, and the effect of preventing the fall is obtained. The lateral arch protection member 43 can support the lateral arch as a gentle shape by making the thickness of the third heel side thinner than the first heel side. Further, since the lateral arch protection member 43 is made of a flexible material, the shape changes according to the load state on the lateral arch, and the burden on the lateral arch is reduced.

  Further, as described above, in the “tilting exercise”, the center of gravity of the load applied to the sole is moved to the main ball, and the load is applied to the main ball, and then the ground with the first toe is applied. By kicking out, you can get the driving force to move forward. The load concentrates on the lower side of the main ball, and the insole in the region is easily worn away, and the load on the main ball itself is also burdened. The sole member 42 is bonded together. Specifically, since the mother bulb is arranged between the inner seed bone and the outer seed bone below the joint (skull part) of the metatarsal bone of the first cage, the mother bulb protection member 44 is also the first. It is placed below the joint (skull) of the metatarsal bone of the heel. The main ball protection member 44 is processed into, for example, a ring shape, and is arranged so that the main ball is positioned on the central space. Further, by arranging the ball protection member 44 around the ball, the sole member 42 around the ball is reinforced so as to be thicker than other regions, and the amount of wear of the sole member 42 is also reduced. Reduced.

  FIG. 7B is a perspective view of the shoe insole 41 viewed from the foot contact side (front side), and the sole member 42 covers the foot contact surface (front side) of the support member 1. Then, a heel protection member 45 made of a flexible material such as a soft foam resin or sponge is bonded to the sole member 42 in the heel region. As described above, the periphery of the rib 9 (see FIG. 2) is covered with thick fat or the like, but the fat or the like on the lower surface of the rib 9 is thinned because the fat or the like is reduced with age. . As a result, an impact is applied to the rib 9 when the “tilting motion” is touched to the ground, and pain is likely to occur. However, for example, by placing the buttocks protection member 45 processed into a ring shape. Similarly to the mother ball protection member 44, pain at the buttocks is reduced, and the amount of abrasion of the sole member 42 is also reduced.

  Further, as shown in the drawing, the sole member 42 is disposed at a height equivalent to or higher than the second bottom surface 3 and the side surface 4 of the support member 1, so that the sole and the side surface of the foot are soles. It is protected so as to be wrapped by the member 42, and the gap between the support member 1 and the sole or the like is reliably filled with the sole member 42, so that the foot is stably fixed.

  FIG. 7C is a side view of the shoe insole 41 viewed from the inner side (first heel side). The dotted line shows the skin line of the foot.

  The support member 1 is bonded to the shoe bottom surface side (back surface side) of the sole member 42, and the lateral arch protection member 43 and the baseball protection member 44 are bonded to the toe side of the support member 1. The lateral arch protection member 43 is thicker than the main ball protection member 44 and has a shape protruding toward the shoe bottom side. With this structure, when the insole 41 is arranged in the shoe, the sole member 42 in the arrangement region of the lateral arch protection member 43 is deformed so as to be higher than the sole member 42 in the arrangement region of the main ball protection member 44. The skeletal structure of the transverse arch is supported at a suitable position.

  Further, as illustrated, the sole member 42 in the region where the ribs 8 (see FIG. 2) of the first to fifth ribs are disposed may be processed into a stepped shape toward the shoe sole side. As shown by the dotted line, the toes are likely to hang down, the force of grasping the ground with the toes is strengthened, and the muscle strength of the toes is also increased. As the toes' muscle strength increases, the ability to kick the ground also increases, walking stability increases, it becomes easier to maintain the balance of the body, whips and falls during walking, etc., and stability during `` tilting exercise '' Is improved.

  In the present embodiment, the case where the sole member 42 processed into a sheet shape is used by being bonded to the surface side of the support member 1 is described, but the present invention is not limited to this case. For example, the sole member 42 may be formed with protrusions that support the arch structure of the foot skeleton.

  Moreover, although the case where the horizontal arch protection member 43 was joined to the shoe bottom surface side of the sole member 42 has been described, the present invention is not limited to this case. For example, the sole member 2 itself may be formed into a protruding shape in accordance with the lateral arch structure. Moreover, although the case where the main ball protection member 44 and the buttocks protection member 45 are processed into a ring shape has been described, the present invention is not limited to this case. For example, it is only necessary that the area where the main ball or rib 9 is arranged is a depressed area, and the shape can be arbitrarily changed. Moreover, although the case where the toe side of the sole member 42 is processed into a stepped shape has been described, the present invention is not limited to this case. For example, the sole member 42 in the region processed into the step shape may be cut out. In addition, various modifications can be made without departing from the scope of the present invention.

  Finally, with reference to FIGS. 8 to 16, when the insole 41 using the support member 1 described above is used, and when the insole that supports the three arches of the skeleton is used as in the conventional FIG. 17. The measurement data will be compared and explained, and the balance state during use will also be explained. 8, FIG. 11 and FIG. 14 are diagrams showing the foot pressure when standing on both feet, and FIG. 9, FIG. 12 and FIG. 15 are diagrams showing the foot pressure when standing on one foot, FIG. FIG. 13 and FIG. 16 are diagrams for explaining the balance state when one leg stands upright. In addition, the measurement of foot pressure is measurement data in a state where a shoe insole 41 or a conventional insole is directly arranged on the upper surface of the foot pressure measuring machine and a measurer is on the shoe insole 41 or the conventional insole. is there. Further, a lateral arch protection member 43 is joined to the shoe bottom side of the sole member 42 of the shoe insole 41.

  First, FIGS. 8-10 is a case where a measurement person is a 75-year-old male.

  FIG. 8A shows foot pressure data when a measurer uses a conventional insole, stands up with both feet on the upper surface of the foot pressure measuring machine, and rests for 10 seconds. As shown in the figure, on both feet, a dark orange color is displayed in the heel region, while a blue system is displayed in the other sole region, and a situation in which the foot region is hardly displayed is measured.

  Here, in the skeleton structure of the foot, 2/3 of the load is applied to the rib side, and 1/3 of the load is transmitted to the metatarsal 7 and the rib 8 side. In the conventional insole, the three arches are individually supported, and the middle region of the three arches on the sole is lifted. Therefore, in the conventional insole, it is estimated that the load remains on the heel region side and is concentrated rather than being distributed over the entire sole.

  From this measurement result, in the conventional insole, the load concentrates on the side of the heel region of the foot, the foot is tilted backward, and the toe is lifted upward, so that the toe is good in the shoe. It is presumed that a fall or the like is likely to occur as described above.

  FIG. 8B shows foot pressure data when the measurer uses the insole 41 using the support member 1 and stands upright on the upper surface of the foot pressure measuring machine with both feet and is stationary for 10 seconds. As shown in the figure, a situation was observed in which a dark orange color was hardly displayed on both feet, and a blue system was displayed over the entire sole including the toes.

  From this measurement result, in the shoe insole 41 of the present embodiment, the first bottom surface 2 is arranged from the heel region to the fourth and fifth metatarsal sides, so that the conventional insole is used. When the foot is tilted forward, the load applied to the heel area is distributed to the entire sole and the toe is also loaded, so that the toe can be used well in the shoe. As described above, it is presumed that the “tilting exercise” is performed efficiently and falls can be prevented.

  FIG. 9A shows foot pressure data when a measurer uses a conventional insole, stands up on one foot on the upper surface of the foot pressure measuring machine, and rests for 10 seconds. As shown, dark orange is displayed in the heel area, while blue is displayed in the other sole area, as in the case where both feet are standing upright. It was done.

  FIG. 9B shows foot pressure data when a measurer uses a shoe insole 41 using the support member 1 and stands upright on the upper surface of the foot pressure measuring machine with one foot standing still for 10 seconds. As shown in the figure, as in the case of standing both feet, a dark orange color was hardly displayed and a blue system was displayed over the entire sole including the toes.

  FIG. 10 (A) shows a case where a measurement person uses a conventional insole, holds the measurement object on both shoulders, bends one leg at a right angle, and lifts one leg upright. On the other hand, the balance state when a load is applied with both hands is shown.

  As shown by the foot pressure data in FIG. 9 (A), the load concentrates on the heel region, the toes do not touch the ground, the foot is tilted backward, the foot is not fixed, and no force is applied to the foot. It can be seen that the raised one leg is pushed down and the balance of the posture is getting worse.

  FIG. 10 (B) shows a case where a measurement person uses a shoe insole 41 using the support member 1 and is measured in a standing state where one leg stands upright holding the measurement person's shoulders and bending one leg at a right angle. The balance state when a person applies a load to the lifted one leg with both hands is shown.

  As shown in the foot pressure data in FIG. 9 (B), the load is distributed throughout the sole, the toes are also in contact with the ground, the ground is held, the foot is fixed, and force is applied to the foot. It can be seen that the condition of one leg can be maintained and the balance of posture is stable.

  Next, FIGS. 11 to 13 show the case where the measurer is a 75-year-old male, and FIGS. 14 to 16 show the case where the measurer is a 65-year-old male.

  FIG. 11A and FIG. 14A are foot pressure data when a measurer uses a conventional insole, stands up with both feet on the upper surface of the foot pressure measuring machine, and rests for 10 seconds. Data similar to the measurement data of FIG. 8A is measured, and as shown in the drawing, a dark orange color is displayed in the heel area, while a blue system is displayed in the other sole area, and in the toe area. The situation that was hardly displayed was measured.

  11 (B) and 14 (B) show a state where the measurer uses a shoe insole 41 using the support member 1 and stands upright with both feet on the upper surface of the foot pressure measuring machine and is stationary for 10 seconds. It is foot pressure data. Data similar to the measurement data in FIG. 8B is measured, and as shown in the figure, a dark orange color is hardly displayed and a blue system is displayed over the entire sole including the toes. It was.

  FIGS. 12A and 15A show foot pressure data when a measurer uses a conventional insole and stands up on one foot on the upper surface of the foot pressure measuring device and rests for 10 seconds. Data similar to the measurement data of FIG. 9A was measured, and as shown in the figure, the load was concentrated in the heel region and the situation where it was hardly displayed in the toe region was measured.

  12 (B) and 15 (B) show a state where the measurer uses a shoe insole 41 using the support member 1 and stands upright on the upper surface of the foot pressure measuring machine with one foot and is stationary for 10 seconds. It is foot pressure data. Data similar to the measurement data in FIG. 9B is measured, and as shown in the figure, a dark orange color is hardly displayed and a blue system is displayed over the entire sole including the toes. It was.

  13 (A) and 16 (A), as in FIG. 10 (A), the load concentrates on the heel region, the toes do not come into contact with the ground, and the foot is not fixed. It can be seen that the raised one leg is pushed down and the balance of the posture is getting worse.

  13 (B) and 16 (B), as in FIG. 10 (B), the load is dispersed throughout the sole, the toes are also in contact with the ground, the foot is fixed, and the raised one foot It can be seen that the balance of posture is stable.

  Finally, when walking with shoes using the insole 41 using the support member 1 and when walking with shoes using a conventional insole, the number of steps taken on a course with an indoor distance of 7 m and a width of 40 cm, The walking time s and walking speed m / s were measured and compared. In addition, the measurer is an average value of a total of 13 people including 7 men and 8 women from 65 to 80 years old. In addition, the measurement data for each individual is an average value of three measurement data.

  First, in terms of the number of walking steps, when using a conventional insole, the average was 14.8 steps, but when using the insole 41 using the support member 1, the average number of steps was 12.4 steps. Measurement data with an average of 2.4 steps was obtained. In particular, for 78-year-old women, the number of steps decreased from an average of 22 steps to an average of 17.3 steps and an average of 4.7 steps.

  Next, in the walking time, when the conventional insole was used, the average was 8.7 s, but when the shoe insole 41 using the support member 1 was used, the average was 6.7 s. Measurement data with reduced walking time of 2.0 s was obtained. In particular, the 78-year-old woman mentioned above reduced the walking time from an average of 13.2 s to an average of 9.8 s and an average of 3.4 s.

  Next, the walking speed m / s was 0.86 m / s on average when using the conventional insole, but 1 on average when using the shoe insole 41 using the support member 1. Measurement data with a walking speed of an average of 0.25 m / s was obtained. In particular, the 68-year-old male increased in walking speed from an average of 0.99 m / s to an average of 1.46 m / s and an average of 0.47 m / s.

  From this measurement data, it can be seen that the use of the insole 41 using the support member 1 stabilizes the feet, stabilizes the posture even in a single foot state, increases the stride, and increases the walking speed. Since the arch area is firmly supported by the support member 1, it is estimated that the “foot walking” is improved, and the “tilting exercise” is efficiently performed.

DESCRIPTION OF SYMBOLS 1 Support member 2 1st bottom face 3 2nd bottom face 4 Side surface 36 Indentation area | region 37 Arch area 41 Shoe insole 42 Sole member 43 Lateral arch protection member 44 Hail ball protection member 45 Hip part protection member

Claims (6)

First and second bottom surfaces for supporting the soles of the region extending from the front of the bone head of the metatarsals of the first to fifth ribs to the ribs, and at least from the periphery of the ribs in the fifth ribs In the support member used by being disposed on the footwear, and having a side surface that supports the side surface of the foot on the footbone side,
The sole is supported by at least the first bottom surface formed into a flat surface and the second bottom surface formed into a curved surface convex with respect to the bottom surface of the foot. A support member which is formed continuously with the bottom surface of 1 and supports the arch region of the sole. The support member according to claim 1, wherein the support member is formed of a resin material including a fiber cloth as a base material and having a porous structure when solid. The first bottom surface is disposed at least below the metatarsals of the ribs, cubic bones, the fourth and fifth ribs,
The said side surface is shape | molded continuously with the said 1st bottom face at least, and is arrange | positioned to the height which overlaps with a part of metatarsal bones of the said rib and the said 5th rib. Support member. The second bottom surface is disposed from the lower surface of the metatarsal bone of the third heel to the lower surface of the inner longitudinal arch formed on the skeleton side of the first heel, and the second bottom surface is the second medial arch. The support member according to claim 2 or 3, wherein a foot bone has a curved shape arranged at a position higher than the first and third metatarsals. In a shoe insole in which a sole member made of a material softer than the support member is bonded to the side of the contact surface of the support member according to any one of claims 1 to 4,
A shoe insole, wherein a transverse arch protection member is disposed below a transverse arch formed across the joints of the metatarsals of the first heel to the fifth heel on the shoe bottom side of the sole member. . On the bottom surface side of the shoe of the sole member, a main ball protection member is disposed below the main ball of the first bag frame,
The shoe insole according to claim 5, wherein a heel protection member is disposed below the rib on the side of the sole surface of the sole member.