JP7051086B2 - Toe inter-toe attachment - Google Patents

Description

The present invention relates to a toe-to-toe wearer.

A special hanao used by adhering to a shoe insole is described in Japanese Patent No. 60444778 (Patent Document 1).

Japanese Patent Application Laid-Open No. 2009-254680 (Patent Document 2) describes an apparatus for strengthening the stepping force of a foot during exercise.

Japanese Patent Application Laid-Open No. 2014-239783 (Patent Document 3) describes a pad between toes for maintaining a good posture during walking and exercising.

Patent No. 6044778 Japanese Unexamined Patent Publication No. 2009-254680 Japanese Unexamined Patent Publication No. 2014-239783

Since the special hanao described in Patent Document 1 is used by being adhered to a shoe insole, once it is adhered to a specific shoe insole, it can be used only for that shoe insole.

In the device described in Patent Document 2, only the plate-shaped portion is pressed under the toes, and there is nothing that gets caught on the upper side of the toes, so that a sense of stability when worn between the toes is obtained. It wasn't enough.

The inter-toe pad described in Patent Document 3 intervenes in all of the five toes of the foot, and is a large-scale one. The appearance was also noticeable, and there was a great sense of discomfort when wearing it.

On the other hand, the symptom of floating fingers is known. A person with a floating finger tends to have a lower center of gravity of the sole of the foot when walking, and cannot kick out with sufficient force, resulting in a decrease in walking efficiency.

Therefore, an object of the present invention is to provide an intertoe wearer that can be stably worn while improving walking efficiency and making it less noticeable in appearance.

In order to achieve the above object, the inter-toe attachment based on the present invention is an inter-toe attachment that is formed of an elastic material and is attached between the big toe and the index finger, and extends in the vertical direction. Left and right so as to wrap around at least a part of the lower part of the thumb and at least a part of the lower part of the index finger from the pillar part that is hollow and the front side is not connected when viewed from above, and the lower end of the pillar part. The lower overhanging portion including the overhanging portion and the first portion protruding from the upper end of the pillar portion to the left and right so as to wrap around at least a part of the upper side of the thumb and at least a part of the upper side of the index finger. It is provided with an upper overhanging portion including.

According to the present invention, walking efficiency can be improved. The toe-to-toe attachment based on the present invention can be stably attached while being inconspicuous in appearance.

It is a perspective view of the toe-to-toe attachment according to Embodiment 1 based on this invention. It is a side view of the toe-to-toe attachment according to Embodiment 1 based on this invention. It is a top view of the toe-to-toe attachment according to Embodiment 1 based on this invention. It is a front view of the toe-to-toe attachment according to Embodiment 1 based on this invention. It is a bottom view of the toe-to-toe attachment according to the first embodiment based on the present invention. FIG. 4 is a cross-sectional view taken along the line taken along the line VI-VI in FIG. FIG. 4 is a cross-sectional view taken along the line VII-VII in FIG. It is a side view of the modification of the toe-to-toe attachment according to Embodiment 1 based on this invention. It is a perspective view of the toe-to-toe wearer in Embodiment 2 based on this invention. It is a side view of the toe-to-toe wearer in Embodiment 2 based on this invention. It is a side view of the modification of the toe-to-toe attachment according to Embodiment 2 based on this invention. It is sectional drawing of the footwear between toes in Embodiment 3 based on this invention. It is sectional drawing of the modification of the toe-to-toe attachment according to Embodiment 3 based on this invention. It is a top view of the toe-to-toe wearer in Embodiment 4 based on this invention. It is a top view of the toe-to-toe wearer in Embodiment 5 based on this invention.

(Embodiment 1)
(Constitution)
The toe-to-toe attachment 101 according to the first embodiment based on the present invention will be described with reference to FIGS. 1 to 7. A perspective view of the toe-to-toe fitting 101 is shown in FIG. FIG. 2 shows a side view of the toe-to-toe fitting 101. A plan view of the toe-to-toe fitting 101 is shown in FIG. A front view of the toe-to-toe fitting 101 is shown in FIG. In FIG. 4, assuming that the toe-to-toe attachment 101 is attached to the user's right foot, the big toe 61 and the index finger 62 of the right foot are indicated by a two-dot chain line. A bottom view of the toe-to-toe fitting 101 is shown in FIG. A cross-sectional view taken along the line VI-VI in FIG. 4 is shown in FIG. A cross-sectional view taken along the line VII-VII in FIG. 4 is shown in FIG. 7. In some figures, the anterior side 91 is indicated by an arrow.

The toe-to-toe attachment 101 is an toe-toe attachment that is made of an elastic material and is attached between the big toe 61 and the index finger 62. The toe-to-toe attachment 101 includes a pillar portion 1, a lower overhanging portion 2, and an upper overhanging portion 3. The pillar portion 1 extends in the vertical direction and is hollow. However, when the pillar portion 1 is viewed from above, the front side 91 of the pillar portion 1 is not connected. The pillar portion 1 has a recess 1c on the front side 91. The lower overhanging portion 2 includes a portion extending from the lower end of the pillar portion 1 to the left and right so as to wrap around at least a part of the lower side of the thumb 61 and at least a part of the lower side of the index finger 62, respectively. The upper overhanging portion 3 includes a first portion 31 projecting from the upper end of the pillar portion 1 to the left and right so as to wrap around at least a part of the upper side of the thumb 61 and at least a part of the upper side of the index finger 62, respectively.

(Action / effect)
In the present embodiment, by providing the above-mentioned configuration, it can be easily attached between the big toe 61 and the index finger 62, and the pillar portion 1 is sandwiched between the big toe 61 and the index finger 62. Since the pillar portion 1 is also made of an elastic material, the elasticity of the pillar portion 1 makes it possible to use the muscles of the thumb 61 and the index finger 62. This makes it possible to improve walking efficiency. Moreover, since the toe-to-toe attachment 101 is compact, the toe-toe attachment can be made inconspicuous in appearance. Moreover, since the toe-to-toe attachment has a portion protruding from at least a part of the upper side and at least a part of the lower side of the thumb 61 and the index finger 62, the attachment can be stably worn. Detailed experimental results for verifying the effect of the toe-to-toe fitting 101 on walking efficiency will be described later.

As shown in FIG. 2, when the entire toe-toe attachment 101 is viewed from the side with the lower overhanging portion 2 placed on a horizontal plane, the pillar portion 1 moves to the rear side as it goes upward. It is preferable that it is inclined. By adopting this configuration, it fits into the shape of the foot and easily fits in the footwear. It is possible to reduce the discomfort given to the user. For example, a certain effect can be obtained even if the toe-to-toe fitting 102 shown in FIG. 8 is not tilted to the rear side, but the pillar portion 1 is on the back side like the toe-toe fitting 101. It is preferable that it is inclined to.

As shown in FIGS. 3 to 5, it is preferable that the entire toe-toe attachment 101 has a symmetrical shape. By adopting this configuration, it is not necessary to worry about the distinction between the right foot and the left foot, and the same shape can be used for both purposes, which improves usability. Here, an example having a symmetrical shape is shown, but the present invention is not limited to this. For example, assuming that each of the toe-toe fittings has an asymmetrical shape, the shapes for the left foot and the right foot may be different. By doing so, it is possible to fit the shape of the left foot and the right foot more accurately. Generally, the index finger has a smaller diameter than the thumb, so by making it asymmetrical in shape, it can be configured to be in close contact with each of the thumb and index finger, and it can be removed from the foot at an undesired timing. Can be prevented.

As shown in FIG. 7, it is preferable that the pillar portion 1 includes a portion having a U-shaped cross-sectional shape when cut in a horizontal plane and viewed from above. By adopting this configuration, it is easy to fit between the thumb and the index finger, and it is easy to be deformed by being pinched.

As shown in FIG. 3, when viewed from above, the lower overhanging portion 2 preferably includes a portion extending toward the left rear side 92 and the right rear side 93, respectively. By adopting this configuration, it can be stabilized at the time of mounting. When the pillar 1 is sandwiched and deformed by the thumb and index finger, the posture of the lower overhanging portion 2 changes from the state of facing the left rear side 92 and the right rear side 93 to the state of facing the left side and the right side. do. In this way, the lower overhanging portion 2 can be easily fitted in the gap under the toes and can be stabilized in the footwear.

As shown in FIG. 3, the upper overhanging portion 3 preferably includes a second portion 32 overhanging toward the rear. By adopting this configuration, the second portion 32 is formed to cover the upper side of the foot between the thumb and the index finger, so that the foot can be stably attached.

As shown in FIGS. 2, 4, and 5, the lower overhanging portion 2 preferably has a flat surface 2a on the lower side. By adopting this configuration, the toe-to-toe fitting 101 can come into contact with the floor surface or the bottom surface of the footwear with the surface 2a, so that the discomfort given to the user can be reduced.

As shown in FIGS. 1 and 4, it is preferable that the side surface of the pillar portion 1 and the lower surface of the upper overhanging portion 3 are connected to each other via a continuous curved surface. By adopting this configuration, it can be fitted to the shape of the user's toes.

In the present embodiment, the toe-to-toe attachment is described as being made of an elastic material, but the elastic material here may be, for example, silicone rubber, or may be, for example, an elastomer. .. The elastic material may have a hardness of 20 or more and 40 or less, for example.

(Embodiment 2)
(Constitution)
The toe-to-toe attachment 103 according to the second embodiment of the present invention will be described with reference to FIGS. 9 to 10. A perspective view of the toe-to-toe fitting 103 is shown in FIG. 9, and a side view is shown in FIG. The toe-to-toe attachment 103 has a simplified shape as compared with the toe-to-toe attachment 101 shown in the first embodiment.

The toe-to-toe attachment 103 is an toe-toe attachment that is made of an elastic material and is attached between the big toe 61 and the index finger 62. The toe-to-toe fitting 103 extends vertically, is hollow, and has a pillar portion 1 to which the front side 91 is not connected when viewed from above, and at least a part of the lower side of the thumb 61 from the lower end of the pillar portion 1. And the lower overhanging portion 2 including the portion extending to the left and right so as to wrap around at least a part of the lower side of the index finger 62, and at least a part of the upper side of the thumb 61 and the upper side of the index finger 62 from the upper end of the pillar portion 1. It is provided with an upper overhanging portion 3 including a first portion 31 overhanging to the left and right so as to wrap around at least a part of the above. The pillar portion 1 has a recess 1c on the front side 91. The toe-to-toe fitting 103 has a linear shape. The toe-to-toe attachment based on the present invention may have such a configuration.

(Action / effect)
Also in the present embodiment, the effects described in the first embodiment can be obtained.

In the present embodiment, an example is shown in which the pillar portion 1 is perpendicular to the lower overhanging portion 2, but as shown in FIG. 11, the pillar portion 1 is inclined backward as it goes upward. You may be doing it. As already described in the first embodiment, it is preferable that the pillar portion 1 is inclined in this way.

(Embodiment 3)
(Constitution)
With reference to FIG. 12, the toe-to-toe attachment 104 according to the third embodiment of the present invention will be described. FIG. 12 shows a cross-sectional view of the toe-to-toe fitting 104 cut in a horizontal plane. The pillar portion 1 includes a portion having a C-shaped cross-sectional shape when cut in a horizontal plane and viewed from above. The C-shape in this case is a shape in which a part of the circle is omitted. The toe-to-toe attachment based on the present invention may have such a configuration.

(Action / effect)
Also in the present embodiment, basically, the same effect as described in the first embodiment can be obtained. In the present embodiment, as the toe-to-toe attachment 104, an example in which the cross-sectional shape of the pillar portion 1 is a C-shape close to a circle is shown, but the present invention is not limited to this, and for example, the toe-to-toe attachment shown in FIG. 13 is shown. It may be something like 105. In the toe-to-toe fitting 105, the cross-sectional shape is a C-shape, and the C-shape in this case is a shape in which a part of an oval or elliptical shape is omitted.

Even in a configuration such as the toe-to-toe fittings 104 and 105, it can be said that the pillar portion 1 extends in the vertical direction, is hollow, and has a structure in which the front side 91 is not connected when viewed from above.

(Embodiment 4)
(Constitution)
With reference to FIG. 14, the toe-to-toe attachment 106 according to the fourth embodiment based on the present invention will be described. As shown in FIG. 14, in the toe-toe attachment 106, when viewed from above, the lower overhanging portion 2 includes a portion extending toward the left side 94 and the right side 95, respectively. The toe-to-toe attachment based on the present invention may have such a configuration.

(Action / effect)
Also in the present embodiment, basically, the same effect as described in the first embodiment can be obtained. However, as described with reference to FIG. 3 in the first embodiment, when viewed from above, the lower overhanging portion 2 includes a portion extending toward the left rear side 92 and the right rear side 93, respectively. Is preferable.

(Embodiment 5)
(Constitution)
The toe-to-toe attachment 107 according to the fifth embodiment based on the present invention will be described with reference to FIG. As shown in FIG. 15, in the toe-toe fitting 107, the upper overhanging portion 3 does not include the second portion overhanging toward the rear. The upper overhanging portion 3 includes a first portion 31 that overhangs to the left and right, but there is no portion that overhangs behind the pillar portion 1. The toe-to-toe attachment based on the present invention may have such a configuration.

(Action / effect)
Also in the present embodiment, basically, the same effect as described in the first embodiment can be obtained. However, as described with reference to FIG. 3 in the first embodiment, the upper overhanging portion 3 preferably includes a second portion 32 overhanging toward the rear.

(Experimental result)
In order to verify the effect of the present invention, the stride length was measured using nine university students as subjects. Each subject was asked to walk on a treadmill in two ways: barefoot and wearing the product of the present invention on both feet. As the product of the present invention referred to here, the toe-to-toe attachment 101 shown in the first embodiment was used. The rotation speed of the treadmill was set to 5.0 km / h for women and 6.0 km / h for men. A video of the subject walking on the treadmill was taken from the side, and the length from the toes of the front foot to the toes of the rear foot when both feet touched the ground was measured as the stride length. The measurement results are shown in Table 1.

Further, the required parameters are obtained from the measured values shown in Table 1 as follows.
Average difference Σd-20
Total of squares of difference 74
Number of samples n 9
Average difference -2.22222
Variance of data difference σ ² 3.694
Standard deviation of difference σ 1.922
t-value -3.468
Significance level set to 5% t-value critical value 2.306
When the null hypothesis that there is no difference in stride length between the state of bare feet and the state of wearing the product of the present invention on both feet is established and the significance level is set to 5%, the t-value critical value is 2.306 from the t-distribution table. Will be. In this experiment, the t-value is -3.468, and the absolute value 3.468 is greater than or equal to the t-value critical value 2.306, so the null hypothesis is rejected. Therefore, it can be said that there is a significant difference in stride length between the case of bare feet and the case of wearing the product of the present invention on both feet. It is considered that this is because the product of the present invention is worn on both feet, which stimulates the space between the toes and increases the stride length. It can be said that walking efficiency is increasing when the stride length is increased.

It should be noted that a plurality of the above embodiments may be appropriately combined and adopted.
It should be noted that the above-described embodiment disclosed this time is an example in all respects and is not limiting. The scope of the present invention is indicated by the scope of claims and includes all modifications within the meaning and scope equivalent to the scope of claims.

1 Pillar part, 1c recess, 2 Lower overhanging part, 2a surface, 3 Upper overhanging part, 31 1st part, 32 2nd part, 61 thumb, 62 index finger, 91 front side, 92 left back side, 93 right back side Side, 94 left side, 95 right side, 101,102,103,104,105,106,107 Toe-to-toe attachment.

Claims (6)

A toe-to-toe fit that is made of elastic material and is worn between the big toe and the index finger.
A pillar portion that extends in the vertical direction and includes a portion whose cross-sectional shape is U-shaped or C-shaped when cut on a horizontal plane and viewed from above .
A lower overhanging portion including a portion protruding from the lower end of the pillar portion to the left and right so as to wrap around at least a part of the lower side of the thumb and at least a part of the lower side of the index finger.
It is provided with an upper projecting portion including a first portion projecting from the upper end of the pillar portion to the left and right so as to wrap around at least a part of the upper side of the thumb and at least a part of the upper side of the index finger.
When viewed from above, the lower overhanging portion includes a portion extending toward the left rear side and the right rear side, respectively.
The lower overhanging portion has a V-shape when viewed in a plane with the front side facing down and the back side facing up.
When the pillar portion is sandwiched and deformed by the thumb and the index finger, the angle formed by the V-shape is widened, so that the lower overhanging portion faces the left rear side and the right rear side. A toe-to-toe wearer that changes its posture from a stretched state to a stretched state toward the left and right sides. The toe-to-toe attachment according to claim 1, wherein the pillar portion is inclined to the rear side toward the upper side when the whole is viewed from the side with the lower overhanging portion placed on a horizontal plane. .. The toe-to-toe attachment according to claim 1 or 2, which has a symmetrical shape as a whole. The toe-to-toe attachment according to any one of claims 1 to 3 , wherein the upper overhanging portion includes a second portion overhanging toward the rear. The toe-to-toe attachment according to any one of claims 1 to 4 , wherein the lower overhanging portion has a flat surface on the lower side. The intertoe attachment according to any one of claims 1 to 5 , wherein the side surface of the pillar portion and the lower surface of the upper overhanging portion are connected to each other via a continuous curved surface.

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