JP3936943B2 - Hallux orthotic footwear - Google Patents

Description

  The present invention has a function that can be corrected by always using a hallux valgus that is deformed by causing a static subluxation of the first metatarsal joint, which is often seen in women who regularly use high heels. It relates to the footwear provided.

  Generally, as shown in FIG. 7, a human foot is formed with a vertical arch 21 and a horizontal arch 22 so that the soles of the feet are not in close contact with the ground. As a result, activities such as standing and walking can be performed naturally. However, there is a case where the arches 21 and 22 are not formed and the activity is hindered. One of the causes is considered to be that the first metatarsal joint of the foot, called the hallux valgus, is static. Deformation of the foot due to subluxation.

  The mechanism that causes this hallux valgus is considered as follows. That is, when wearing high heels or pumps with a thin tip for a long period of time, the toes of the toes are forced into an unreasonable posture as shown in FIG. The lateral metatarsal ligament 14 from the first metatarsal bone head 12 on the thumb side to the fifth metatarsal bone head 13a on the little finger side is loosened laterally as indicated by the arrows in the figure, As a result, a bending moment is always applied to the external median line around the center of the thumb, and the metatarsal bone head 15 is opened concomitantly, whereby the base of the thumb 16 is opened outward (left side in FIG. 6). . When this state continues or is repeated, the shoe will not return to its original state even if the shoes are removed, and this state is referred to as a hallux valgus. In addition, when the hallux valgus develops in this way, the lateral arch 22 is not formed more and more together with the relaxation of the lateral metatarsal ligament 14 described above, and not only in the pain of the affected area but also in daily life such as walking. In addition, it causes serious problems in health such as low back pain and back pain due to unreasonable movements that cover the affected area, and in severe cases visceral diseases due to headache and poor circulation. There was even a fear.

  Therefore, at first, when it became a hallux valgus like this, it was done to wear wide shoes so as not to tighten the toes, but this would instead leave the deformation and slow down the repair. After that, the valgus is actively corrected to its original state by taping or a supporter.

  Various types of footwear that actively correct hallux valgus have been developed from this point of view.

  Conventionally, as this type of footwear, for example, the tip of the shoe is divided into two forks into a fork so that the function of the thumb is independent, and the belt is fixed from the first middle toe joint to the fifth middle toe joint. There was a correction of hallux valgus. (For example, refer to Patent Document 1).

  In addition, a loose fastening body having a U-shaped section for restraining the metatarsal bone head from the inside of the first metatarsal bone head to the outside of the fifth metatarsal bone head is attached to the footwear body. Some have done. (For example, refer to Patent Document 2).

In addition to these, a pressing member or a reinforcing member is formed around the base of the thumb and the side surface portion corresponding to the base portion of the fifth metatarsal bone, which occurs due to an unstable foot in which the hallux valgus and toes are not placed on the ground during walking. Some footwear was designed to correct or prevent unnecessarily twisting. (For example, refer to Patent Document 3).
Japanese Utility Model Publication No. 62-2603 (first page, FIG. 1) Japanese Utility Model Publication No. 7-10562 (page 3, Fig. 1) Japanese Patent No. 3087174 (page 2, FIG. 3)

  Among the above-described conventional hallux valgus correction footwear, those shown in Japanese Utility Model Publication No. 7-10562 and Japanese Patent No. 3087174 are both provided by attaching a reinforcing structure to a specific part of the footwear. When worn, the first metatarsal bone head corresponding to the base of the thumb is pressed, and the hallux valgus due to the first metatarsal bone head separating and expanding is corrected. In other words, the first metatarsal bone head when the footwear is worn by regulating the dimension between the first metatarsal bone head corresponding to the base of the thumb and the fifth metatarsal outside the foot. Is pushed inward.

  However, the above-mentioned dimensions corresponding to the width of the foot differ depending on the person, and the degree of hallux valgus also differs depending on the person, so there is a problem that the above-mentioned dimensions cannot be set only by the size of the foot. If you use a size that does not fit, you will not be able to get the desired effect, but may cause unexpected problems such as worsening the symptoms. For this reason, it is desirable that this type of footwear is tailor-made for the user. In this case, however, there is a problem in that it requires labor and days to manufacture and inevitably becomes expensive. Furthermore, even if it is manufactured in a custom-made manner in this way, the above-mentioned conventional dimensions cannot be changed, so when wearing socks or insoles with different thicknesses, or for symptoms of hallux valgus There is a problem that even if there is an improvement, it cannot be adapted to perform a predetermined function.

  Further, the one disclosed in Japanese Utility Model Publication No. 62-2603 is fixed with a belt with a magic tape from the first metatarsal joint to the fifth metatarsal joint. The footwear can be adjusted arbitrarily and does not cause the above-mentioned problems, but this footwear is used indoors as limited to the top-shoe, so it is a long walk The effect was limited. In addition, the belt is provided on the outside of the shoe body, and the foot is tightened from the surface of the shoe body, so that the shoe body is made of a flexible material. And was not applicable to footwear with hard surfaces such as leather shoes. Further, since this belt is fixed with Velcro, there is a problem that its fixing and holding is insufficient and it is easy to loosen or come off.

  An object of the present invention is to solve the problems of the footwear used for correcting the above-mentioned conventional hallux valgus.

In order to solve the above-mentioned problems, the hallux valgus correction footwear according to claim 1 of the present invention is folded back inwardly at the lower edge of the upper part which is sewn or bonded to a predetermined shape with cloth or leather. folded adhered to the lower surface to the upper peripheral portion of the sole, or in footwear, such as sutures and shoes comprising, under carapace of locations corresponding to the outside of the base corresponding to the first metatarsal bone heads of the big toe At least one side of the portion folded inward on the side and the portion folded inward on the lower side of the upper part of the portion corresponding to the outside of the fifth metatarsal is not joined to the shoe sole In addition, both sides of the shoe are connected to each other by a fastening member accommodated in a recessed portion formed on the surface side of the shoe sole so as to be movable in the contact / separation direction, and a screwdriver is inserted into the fastening member from the outside of the shoe sole. by gentle operation, the pressing force to the inside of the first metatarsal bone head by the instep Wherein the adjustment was allow.

According to a second aspect of the present invention, in the configuration of the first aspect of the present invention , a pair of screw receiving members to be attached to locations where the loose metal fittings are folded inward and face each other , and reverse screws are provided at both ends. The screw shaft is provided with a threaded portion so that the screw receiving member that is screwed to both ends of the screw shaft is driven in the direction in which the screw shaft is brought into and out of contact with the rotation of the screw shaft.

  In the present invention, the lower end of the upper part located outside the first metatarsal bone head, which is the base of the big toe, and the upper part located outside the fifth metatarsal bone. The lower end is connected to the inner part of the shoe sole so that it can be moved in the contact and separation direction. Since it was made possible, the footwear can be adapted to the user to correct the hallux valgus accurately, and a high correction effect can be obtained.

  Further, in the invention of claim 2, the tightening metal fitting is constituted by a pair of screw receiving members and a screw shaft provided with screw portions that are screwed to the screw receiving members so as to be reverse screws at both ends, Since the screw shaft is driven in the direction in which the screw receiving members on both sides come into contact with and separated from each other by rotation of the screw shaft, it can be compactly housed in the shoe sole and can be adjusted easily by rotating the screw shaft. Nevertheless, there is an effect that it is difficult for loosening to occur.

  Hereinafter, the present invention will be described in detail based on the best mode shown in the drawings.

  FIG. 1 is a simplified perspective view showing an example of shoes for correcting hallux valgus according to the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a back view thereof. As shown in the figure, a shoe generally includes an upper 1 that is sewn or joined in a predetermined three-dimensional shape mainly with a cloth or leather, and a shoe sole 2 that is formed to match the shape of the sole with rubber or synthetic resin. The lower end periphery 1a of the upper 1 is folded inward, and the folded lower surface is bonded to the upper peripheral portion of the shoe sole 2 or is joined together by stitching together. After that, an insole (not shown) is laid on the inside to conceal this joint and finish it.

  Here, in the present invention, a pair of loose metal fittings 3 are attached to the back side of the upper 1 so as to connect the lower left and right sides of the upper 1 as shown in FIG.

  As shown in FIG. 4, the loose metal fitting 3 includes a screw receiving member 5 formed by bending a metal plate having a predetermined shape into an L shape, and a screw shaft 4 screwed into the screw receiving member 5. The screw receiving member 5 is provided with mounting holes 5a for inserting caulking fittings (see reference numeral 6 in FIG. 5) on the left and right sides with a predetermined gap in the lower horizontal portion, and the upper vertical portion. In addition, a screw hole 5b is provided so as to penetrate in the lateral direction.

  The screw shaft 4 is a shaft having an outer diameter substantially equal to the inner diameter of the screw hole 5b of the screw receiving member 5, and is screwed into the screw hole 5b over a predetermined range on the left and right sides of the outer periphery. Screw portions 4a and 4b are provided. Here, the screw portions 4a and 4b have the screw guide directions opposite to each other so that the screw on one side is a reverse screw. Therefore, as shown in FIG. 4, the screw holes 5 b and 5 b of the screw receiving members 5 and 5 are screwed into the screw portions 4 a and 4 b on both sides of the screw shaft 4 so as to be supported between the screw receiving members 5 and 5. When combined, the screw receiving members 5 and 5 are driven in the direction of contacting and separating from each other by the rotation of the screw shaft 4.

  An engagement groove 4c for engaging an operation driver (not shown) is provided on one or both end faces of the screw shaft 5.

  The tightening metal fitting 3 is attached by first fixing the screw receiving member 5 to the lower end of the upper 1 using the caulking metal fitting 6. At this time, one screw receiving member 5 is shown in FIG. It is attached to the lower end of the portion corresponding to the outer side of the first metatarsal bone head 12 corresponding to the base of the toe 16 of the toe, and the other screw receiving member 5 connected to the screw receiving member 5 by the screw shaft 4 It is supposed to be attached to the lower end of the portion corresponding to the outside of the fifth metatarsal 13 on the side. After that, the screw portions 4a (or 4b) are screwed into the screw holes 5b, thereby connecting the screw receiving members 5 and 5 with the screw shaft 4.

  Note that although only one of the above-mentioned tightening metal fittings 3 may be attached to the lower end portion of the upper 1, if two are provided in parallel as shown in the figure, the force is dispersed and the strength is improved. It is preferable that surface wrinkles and distortions are less likely to occur due to concentration of force on a specific part of the upper 1. Further, if the two loose metal fittings 3 are arranged so as to intersect in an X shape, an effect of enhancing the fit of the heel portion can be obtained.

The upper 1 to which the loose metal fitting 3 is attached in this way is then integrally joined to the sole 2 formed in the shape of the sole with rubber or synthetic resin. The surface of the shoe sole 2 corresponding to the tightening metal fitting 3 is recessed (this recessed portion is indicated by reference numeral 2a in FIGS. 2 and 3) , and the tightening metal fitting 3 is stored therein. I am doing so. In addition, the upper 1 is in a state where it can move freely without joining at least one side to which the elastic metal fitting 3 is attached to the shoe sole over a predetermined width so as not to prevent the movement of the upper 1. Furthermore, an opening (not shown) is provided on the side surface of the shoe sole 2 so as to be closed by an appropriate means at a position where the end surface of the screw shaft 4 of the stored loose metal fitting 3 faces. (Note that the shaded portion denoted by reference numeral 1b in FIG. 5 indicates a portion that is integrally joined with the shoe sole.)

  In this way, after the upper 1 is integrally joined to the shoe sole 2, an insole (not shown) is attached to the inside of the shoe to conceal the joint, and the hallux valgus correction footwear of the present invention is It will be completed.

  Next, the function of the hallux valgus correction footwear of the present invention having the above-described configuration will be described. First, in normal use, the hallux valgus correction footwear of the present invention is not different from conventional shoes, and its appearance is also normal shoes. It is almost indistinguishable. And in those who have hallux valgus when wearing these shoes, the first metatarsal bone head 12 which is the base of the toe 16 of the toe is open outward, so the shoe fits the foot. Otherwise, the foot will slip in the shoe by walking, and the affected area will be rubbed and stimulated by the inner surface of the shoe, causing pain, and the arches 21 and 22 will not be formed on the sole due to the relaxation of the lateral metatarsal ligament 14 Although the walking is more difficult, in the hallux valgus-corrected footwear of the present invention, if the driver is inserted from the opening provided on the side surface of the shoe sole 2 and the screw shaft 4 is rotated, the first base of the thumb 16 is obtained. The metatarsal bone head 12 can be pressed inward by the upper 1 to correct the hallux valgus and fit the shoe to the foot. Further, if the hallux valgus is corrected in this way, the arches 21 and 22 of the soles are also formed incidentally, so that pain caused by rubbing the affected area is reduced and walking can be performed easily. .

  The above operating procedure will be described in detail. In the hallux valgus-corrected footwear of the present invention, an opening that is appropriately closed by means is provided on the side surface of the shoe sole 2. 1), the opening is opened, a screwdriver is inserted through the opening, and the tip of the screw is engaged with a groove 4c provided on the end surface of the screw shaft 4 of the loose-fitting 3 provided inside the shoe sole 2. When the screw shaft 4 is rotated, one of the screw portions 4a and 4b provided on both sides of the screw shaft 4 is formed as a reverse screw, so that the screws screwed into the respective screw portions 4a and 4b. The receiving members 5 and 5 are driven in the approaching / separating direction. Therefore, if the screw shaft 4 is rotated in one direction and the screw receiving members 5 and 5 are moved in the approaching direction, the upper 1 to which the screw receiving member 5 is attached is mutually left and right (in FIG. 5). It is driven in a direction in which the lower ends of the left and right sides approach each other. As a result, the upper part of the foot is tightened by the upper 1. At this time, in the hallux valgus correction footwear of the present invention, one screw receiving member 5 is attached to the lower end of the portion corresponding to the outside of the first metatarsal bone head 12 corresponding to the base of the thumb, and the other screw receiving member 5 is attached. Is attached to the lower end of the portion corresponding to the outside of the fifth metatarsal 13, so that the upper 1 is pulled in the direction indicated by the arrow in FIG. The base of the thumb is pressed inward, the first metatarsal bone head 12 is returned to a normal position, and the hallux valgus is corrected.

  In this operation, as described above, one of the screw portions 4a and 4b is formed as a reverse screw, so that the screw receiving member 5 moves closer by two rotations in one rotation.

  As described above, in the hallux valgus correction footwear of the present invention, the hallux 1 is pulled, and the shoe is fitted to the user's foot to correct the hallux valgus.

  In the illustrated embodiment, a shoe is illustrated, but the hallux valgus-corrected footwear of the present invention can be tightened on the back of the base of the thumb with a tightening bracket provided on the shoe bottom. Any footwear may be used as long as it has a similar functioning upper.

It is the simple perspective view which showed shoes for the hallux valgus correction footwear of this invention for the example. It is a side view of FIG. It is a reverse view of FIG. FIG. It is a back view of the upper before a shoe sole attachment. It is a model perspective view of a hallux valgus. It is a functional schematic diagram of a foot arch.

Explanation of symbols

1 Upper 1a Lower edge of upper
1b Joint part 2 with shoe sole
2a Concave portion 3 formed on the surface side of the sole 3 Loosening bracket 4 Screw shaft 4a, 4b Screw portion 5 Screw receiving member 5a Mounting hole 5b Screw hole 6 Caulking fitting 12 First metatarsal bone head 13 5th middle Foot bone 14 transverse metatarsal ligament 21 longitudinal arch 22 transverse arch

Claims (2)

Footwear such as shoes formed by folding the lower edge of the upper part inwardly stitched or bonded to a predetermined shape with cloth or leather, and bonding or stitching the folded lower surface to the upper peripheral part of the shoe sole In
And the place where it has been folded back to the inside of the lower instep of the portion corresponding to the outside of the base corresponding to the first metatarsal bone head of the big toe, the instep of the portion corresponding to the outside of the 5 foot bone A tightening bracket that is not joined to the shoe sole, and that both sides are housed in a recessed portion formed on the surface side of the shoe sole, of the portions folded inwardly on the lower side. It is connected so as to be movable in the approaching / separating direction, and by inserting a screwdriver from the outside of the shoe sole and operating the tightening operation, adjustment of the pressing force to the inside of the first metatarsal bone head by the upper can be adjusted. Ventral hallux correction footwear characterized by being made. The loose metal fitting is composed of a pair of screw receiving members to be attached at locations facing the inside of the upper shell and facing each other, and a screw shaft provided with a threaded portion so as to be a reverse screw at both ends. 2. The hallux valgus-corrected footwear according to claim 1, wherein the screw shaft is driven in a direction in which a screw receiving member screwed into both ends thereof is contacted and separated by rotation of the screw shaft.

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