JP3224134U - footwear - Google Patents

Abstract

An object of the present invention is to provide footwear capable of correcting a foot arch. When a foot contacts the ground, a sole 3 made of an elastic body is formed so that the toe side is inclined with respect to the heel side and the sole is inclined, and the thickness is reduced from the toe side to the heel side. Is inclined. The sole 3 has at least one of the third metatarsal bone, the second metatarsal bone, and at least half of the fourth metatarsal bone, except for the area between the first metatarsal bone and the heel and the small heel. It is a shock-absorbing material that is flexible and less elastic than the other areas of the sole, in a range that includes all and up to half of the second and fourth metatarsals. A configured settling portion is provided. [Selection] Figure 1

Description

The present invention relates to footwear that stimulates the front lateral arch and uses the outer longitudinal arch and the entire inner longitudinal arch for correction.

A human foot has an arch structure of a front lateral arch, an outer longitudinal arch, and an inner longitudinal arch. In FIG. 4A, the front transverse arch FA, the outer longitudinal arch OA, and the inner longitudinal arch IA are shown. If the arch structure collapses due to lack of exercise, etc., it will not be able to absorb the shock applied to the foot enough, causing problems such as becoming easy to get tired, and in order to solve it, the surface where the foot touches was made arched Footwear and insoles have been proposed (Patent Document 1). In addition, in order to extend the Achilles tendon during walking and promote health, rehabilitation, and the like, there has been proposed a footwear in which the toe side is configured to be higher than the heel side (Patent Document 2). In addition, there has been proposed a footwear in which the toe side is higher than the heel side, and the amount of stretching the Achilles tendon can be freely changed (Patent Document 3).

Furthermore, in Patent Document 4 by the applicant, when the foot touches the ground, the sole is supported by the sole of the footwear in a state where the toe side is higher than the heel side, and at least a sole portion directly below the thumb The foot kicks the ground so that the thumb of the sole moves away from the other fingers or moves the thumb range of the sole independently of the range of the other fingers. It is disclosed to train muscular strength by forcibly moving the front lateral arch of the foot by separating and sinking the thumb from the other fingers as it exits.

Japanese Patent Laying-Open No. 2015-92896 JP-A-9-140408 Utility Model Registration No. 3063147 JP 2017-136276 A

However, in order to eliminate the collapse of the arch structure, it is necessary to train the muscles by exercise, but walking with conventional footwear makes it difficult to walk on the sandy beach and efficient muscle strengthening that can be obtained in uphill environments on mountain roads. It is not obtained. In addition, there is a case where the muscles are unconsciously specially distorted and the weight shift during walking cannot be performed normally.
The present invention is a method of training to strengthen the anti-gravity muscles by embodying sandy beaches and uphills while making the person aware that weight transfer is not done correctly and walking on a flat road And it aims at providing the footwear used for it.

To achieve the above purpose, when the foot touches the ground, the toe side is higher than the heel side so that the sole is inclined and the thickness is reduced from the toe side toward the heel side. The sole is slanted, and the sole is at least one of the heels of the first metatarsal bone except for a range including at least half of the third metatarsal bone, the second metatarsal bone, and the fourth metatarsal bone. It is more flexible and elastic than the other areas of the sole in the range including all of the heels and small heels from below the sphere and including at most half of the second metatarsal bone and the fourth metatarsal bone. It is characterized in that a settling part made of a lowered shock-absorbing material is provided.

According to the present invention, from the time immediately below Ryukyu D to the last step of the last saddle, the sinking by the sinking portion continues, and it is possible to move up and down from just below Ryukyu D just by walking. By this movement, the front lateral arch FA is forcibly moved, and even a person who cannot move the center of gravity inside the foot can correct the arch. In addition, even a person who moves the center of gravity outside the foot can notice that he is walking with the center of gravity moved to the side of the small ball because the sinking part sinks directly under the small ball. . Moreover, the center-of-gravity movement can be corrected by performing training so that the area just below the small ball E does not sink and from the inside of the foot.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the footwear of Example 1, FIG. 1A is sectional drawing when an insole is inserted, FIG. 1B is sectional drawing when an insole is taken out. FIG. 2A is an overall view, FIG. 2B is a perspective view showing a state in which a surface layer portion is partially turned, and FIG. 2C is a view in which a settling portion on both sides is separated from a sole base. FIG. FIG. 3A is a plan view of the insole, FIG. 3B is an XX sectional view, FIG. 3C is a YY sectional view, FIG. 3D is a ZZ sectional view, and FIG. 3E is a position with a foot bone. It is a figure which shows a relationship. FIG. 4A shows the center of gravity movement trajectory of the sole, FIG. 4B shows the walking state with ordinary footwear, and FIG. 4C shows the walking state with the footwear of the example. It is a figure which shows the effect | action of the footwear by an Example, FIG. 5A is a figure at the time of no load, FIG. 5B is a figure which shows the effect | action at the time of weight transfer to the inside, FIG. It is.

The footwear 1 has a footwear body 2 and a sole 3. The sole 3 includes an outsole 31 and an insole 32. The insole 32 may have a slight variation in thickness from the toes to the heel, but is substantially planar. The footwear main body 2 is a portion that wraps from the side of the foot to the instep, and the toe portion has an internal space whose height h is higher than that of normal footwear. The insole 32 is removable from the inside of the footwear body 2. The thickness of the insole 32 is inclined so as to decrease the thickness from the toe side toward the heel side. When the footwear 1 equipped with the insole 32 is swept, the upper surface of the insole 32 is inclined so that the toe side is high and the heel side is low when the foot contacts the ground.

FIG. 2 shows an insole 32 of the footwear 1 according to the first embodiment. 2A is an overall view, FIG. 2B is a perspective view showing a state in which the surface layer portion 36 is partially turned, and FIG. 2C is a perspective view in a state where the settling portions 34 and 35 and the sole base 33 are separated. The insole 32 includes a sole base body 33 and settling portions 34 and 35, and a surface layer portion 36 is provided on the surface that contacts the sole of the foot. The sole base 33 is made of foamed rubber, which is a hard elastic material with poor flexibility, and sedimentation portions 34 and 35 are provided on both sides of the toe side. The settling portions 34 and 35 are made of a material having higher flexibility and lower elasticity than the sole base 33. In the case of the present embodiment, the material of the settling portions 34 and 35 is a kind of flexible urethane foam, which increases the flexibility, lowers the elasticity, and has an impact absorbability with a large hysteresis loss rate. The rebound resilience rate is a low rebound resilience foam having a very small value of about 15% or less. The surface layer portion 36 is bonded to the sole base 33 and the settling portions 34 and 35 and can be deformed following the deformation of the sole base 33 and the settling portions 34 and 35.

The settling portions 34 and 35 may or may not be bonded to the sole base 33, but in the present example, both are bonded. 3 is a diagram for explaining the details of the structure of the insole 32, FIG. 3A is a plan view of the insole 32 as viewed from above, FIG. 3B is an XX sectional view, FIG. 3C is a YY sectional view, and FIG. 3D is a ZZ sectional view. FIG. 3E is a diagram showing a positional relationship with a foot bone. In FIG. 3E, the insole 32 is indicated by a thick line.

First, with reference to FIG. 3E, the positional relationship between the sinking portions 34 and 35 of the insole 32 and the bone of the foot will be described. The insole 32 is formed so as to cover the inner bottom surface of the footwear 1 from the toes of the footwear 1 to the heel. The grounding surface side of the insole 32 is subjected to a process that improves the familiarity with the outsole 31 and makes it difficult to slip. For example, countless uneven shapes are formed.

The human foot is provided with an arch structure of a front lateral arch FA, an outer longitudinal arch OA, and an inner longitudinal arch IA. Of these, the front lateral arch FA is the Ryukyu D (base of the heel). This is an arch structure with the small ball E (the root of the small eyelid) at both ends and warped upward, and is composed of muscles and ligaments. More precisely, the anterior lateral arch FA starts from the head of the first metatarsal bone (the Ryukyu D), and the head of the second metatarsal bone, the third metatarsal bone H, and the fourth metatarsal bone. It passes through this portion and ends at the head of the fifth metatarsal bone (the small ball E).

The sinking portions 34 and 35 on both sides of the insole 32 are formed in a range including the tip of the eyelid and the tip of the eyelid from the portion immediately below the eyeball D and the eyelid E, respectively. The sinking portions 34 and 35 are provided in a range including all of the heel and the small heel, and in a range including at most half of the second metatarsal bone and the fourth metatarsal bone, respectively. For this reason, a portion that is directly below the front lateral arch FA between the Ryukyu D and the Ryukyu E (the third metatarsal H of the foot, the second metatarsal, and at least half of the fourth metatarsal) The sedimentation parts 34 and 35 are not formed. The sole base body 33 is provided at other locations excluding the settling portions 34 and 35 which are the range including all of the heels and small folds and the range including at most half of the second metatarsal bone and the fourth metatarsal bone. Its low flexibility and firm elasticity support the load on the sole of the foot.

In FIG. 3A, the position of the cross section shown in FIGS. 3B-3D is shown. FIG. 3B shows an XX section obtained by cutting from the toe to the heel at a portion including the sinking portion 34 in charge of the Ryukyu D, and FIG. 3C illustrates from the toe to the heel at a portion including the third metatarsal bone H of the foot. FIG. 3D shows a ZZ cross section obtained by cutting from the toe to the heel in a portion including the settling portion 35 in charge of the small ball E. In any cross section, it includes the settling portions 34 and 35 and is inclined so as to reduce the thickness from the toe side toward the heel side.

FIG. 4 is a diagram showing the action of the footwear 1, and FIG. 4A shows a locus of the center of gravity movement of the sole. 4B shows a state of walking when a general footwear 10 is worn, and FIG. 4C shows a foot movement when the footwear 1 according to the present embodiment is worn. In FIG. 4A, when the sole touches the center of gravity, the center of gravity G moves from the heel toward the heel along a locus as shown by the gravity center locus S1. Such movement of the center of gravity is normal, but there are many cases where the center of gravity is moved using only the outside or inside of the sole, and the center of gravity is moved only on the outside or inside of the heel. When the center of gravity is moved using the center of gravity, the center of gravity locus S3 and the center of gravity locus S2 when the center of gravity is grounded on the outside and only the striking side is moved are shown).

Comparing FIG. 4B and FIG. 4C, when the foot touches the ground (p in the figure), the center of gravity of the flat footwear 10 is directly below, but the toe side is high and the heel side is low. Like the footwear, the footwear 1 does not have a grounded foot just below the center of gravity G, so it reflects when it pulls its chest and puts the center of gravity forward. When the grounded foot comes to the rear (q in the figure), the joint of the toe bends. The center of gravity G gradually moves to the toes. The flat footwear 10 is prepared for kicking out, but in the footwear 1, the toe is set high, so the toe presses the sole 3. When the front foot comes in contact with the ground (r in the figure), the flat footwear 10 kicks out, but the footwear 1 kicks out with the center of gravity G remaining on the rear foot. The movement of the foot shown in FIG. 4 is a standard movement, but even when walking with the sole of the foot in contact with the ground or when the toe side is high and the heel side is low, It works to take more body weight naturally.

FIG. 5 is a diagram illustrating an operation of the footwear 1 according to the embodiment, and is a diagram schematically illustrating a cross section (PP cross section) immediately above the front lateral arch FA in FIG. 4E. 5A is a view when there is no load, FIG. 5B is a diagram showing an action when the weight is moved inward (centroid locus S1, S2), and FIG. 5C is a view showing an action when the weight is moved outward (center of gravity locus S3). It is.

In FIG. 5B, if there is a foot in the state of q in FIG. 4C, the center of gravity moves to the toe when stepped on. Since the center of gravity of the sinking portion of the insole 32 on the side of the Ryukyu D is located at the position of the Ryukyu D, the portion immediately below the Ryukyu D sinks greatly. On the other hand, in the range centered directly below the Ryukyu D, settling is suppressed by the hard elastic body of the sole base 33, so that the sinking amount directly below the Ryukyu D is further increased. And this sinking continues from right under Ryukyu D to the last step of the basket. As a result, it is possible to move up and down from just below the Ryukyu D just by walking, and the front lateral arch FA is forcibly moved by this motion, and the arch can be corrected.

In FIG. 5C, if there is a foot in the state of q in FIG. 4C, the center of gravity moves to the toe when stepped on. Since the center of gravity of the settling part 35 on the small ball E side of the insole 32 comes to the position of the small ball E, the portion just below the small ball E sinks greatly. In the range centered on the third metatarsal bone H, the settling is suppressed by the hard elastic body of the sole base 33, so that the subsidence amount just below the small ball E is further increased. In most cases, when the weight is moved outward, the foot is started from a position immediately below the small ball E, so that the wearer of the footwear 1 walks with the center of gravity moved to the small ball E side. You can notice that you are. Moreover, the center-of-gravity movement can be corrected by performing training so that the area just below the small ball E does not sink and from the inside of the foot.

According to the present embodiment, the sinking portion 34 on the side of the Ryukyu D is included in the range up to the position of the first metatarsal bone. For this reason, even a person who cannot step on the saddle can step on the position immediately below the Ryukyu D and be aware of the sedimentation immediately below the Ryukyu D, so that more people can be corrected. Moreover, since the insole 32 is removable from the inside of the footwear main body 2, it is possible to adjust the low resilience of the settling portions 34 and 35. It is also possible to wash when dirty.

Moreover, since the insole 32 can be removed from the inside of the footwear body 2, if the kicking by the heel is possible, the insole 32 is replaced with an insole in which the range of the settling portion 34 is limited so that only the heel portion sinks. By doing so, you may make it disclose in the Example of patent document 4. FIG. In this case, since the space at the tip of the toe portion of the footwear body 2 is made large, the outsole 31 and the footwear body 2 can be used as they are.

In this embodiment, the sole 3 includes the outsole 31 and the insole 32, but a midsole may be inserted between the outsole 31 and the insole 32. The thickness of the outsole 31, the midsole, and the insole 32 may be inclined so that the thickness decreases from the toe side toward the heel side. Conversely, the outsole 31 and the insole 32 may be integrated without making the insole 32 removable.

DESCRIPTION OF SYMBOLS 1, 10 Footwear 2 Footwear main body 3 Sole 31 Outsole 32 Insole 33 Sole base | substrate 34, 35 Settling part 36 Surface layer part

Claims (3)

When the foot touches the ground, the sole made of elastic material is inclined so that the toe side is inclined with respect to the heel side and the sole is inclined, and the thickness is reduced from the toe side to the heel side. The sole includes at least a third metatarsal bone, a second metatarsal bone, and a range including at least half of the fourth metatarsal bone. And a shock-absorbing material that is more flexible and less elastic than the other areas of the sole in a range that includes all of the above, and includes at most half of the second and fourth metatarsals. Footwear characterized by being provided with a settling part composed of
The footwear according to claim 1, wherein the sole includes an outsole and an insole, and the outsole is connected to a footwear body that wraps from a side surface of the foot to an instep, and the insole can be taken out from the footwear body. And the said sedimentation part is provided in the said insole, The footwear characterized by the above-mentioned.
Insole that can be taken out from the inside of the footwear, and when the foot touches the ground, the toe side is higher than the heel side, the sole is inclined, and the thickness decreases from the toe side to the heel side The sole made of an elastic body is slanted, and the sole has at least the first metatarsal except the range including at least half of the third metatarsal bone, the second metatarsal bone, and the fourth metatarsal bone. It is more flexible than the other areas of the sole in the range including all of the heels and small heels from directly below the Ryukyu of the bone and including at most half of the second metatarsal bone and the fourth metatarsal bone. An insole provided with a settling portion made of a shock-absorbing material that is high and low in elasticity.