JP7130184B1 - toe partition shoes - Google Patents

Abstract

The object of the present invention is to secure the flexibility of the toe part of a toe partition shoe to suppress the free movement of the toes and to suppress the permeation of water into the shoe from the joining parts of the members to make it difficult to cause discomfort. To provide a toe partition shoe. SOLUTION: The partition part of the toe partition shoe having a partition part between the first toe and the second toe of the foot is formed by forming the exterior of the toe partition shoe and enveloping the foot. The inside of the separated outer skin part that advances from the part to the root side of the first and second toes of the foot to separate the first and second toes, and the insole part that is placed below the tip of the outer skin An insole incision formed by entering from the tip of the insole to the root side of the first and second toes of the foot, and a sole portion of the shoe sole disposed below the insole, extending from the tip of the sole to the base of the foot. and a shoe sole cut portion formed by entering the base side of the first toe and the second toe, and the outer skin end portion of the separated outer skin portion enters from above the insole cut portion and forms the insole cut portion. The shoe sole adheres closely to the edge of the outer skin and adheres to the insole. [Selection drawing] Fig. 2

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toe-toe partition shoe, and more particularly to a toe-toe partition shoe that suppresses permeation of water from the toe partition.

Toe-toe partition shoes are popular mainly under the name of tabi shoes or the like. One of its characteristics is that the function of tabi is applied to shoes. Tabi have the advantage that the first toe (big toe) and the second toe (other toes) can move independently. For example, when standing on an uneven ground or walking, the first toe and other toes move separately, so that the toes can easily grasp the ground. Therefore, toe partition shoes (tabi shoes) are a good example of shoes that require complex toe movements, such as those for work and sports (see Patent Document 1, etc.).

For example, in the case of a toe-fork partition shoe represented by Patent Document 1, the tip of the foot is divided into two parts, and the part of the interior member of the shoe that separates the first and second toes of the foot is attached at a predetermined interval to the forked part of the foot. A member is inserted that divides the first toe and the second toe into left and right. Then, the outside of the shoe, the sole, etc. are attached to complete the shoe. Thus, the first toe (big toe) is independently movable in the toe partition shoe.

However, in the toe partition shoe represented by Patent Document 1, the shape of the toe portion is more complicated than that of general shoes, and therefore the number of parts is large, and the processing is complicated accordingly. Moreover, since the toe is bifurcated, the bonding points of the outer skin, the insole, the sole, and the like, which constitute the shoe, are likely to be weakened. In particular, in split-toe shoes for work or sports, free movement of the toes is hindered if the rigidity of the bifurcated toe portion is increased. Conversely, if the bifurcated toe portion is made too flexible, the strength is reduced, and furthermore, water permeates into the shoe from the joints between the members, causing discomfort.

JP 2015-167670 A

The present invention has been devised in view of the above-mentioned points, and in a toe partition shoe, it is possible to ensure the flexibility of the bifurcated toe portion to enable free movement of the toes, and furthermore, to prevent the movement of the toes. To provide a toe-toe partition shoe which suppresses permeation of water from a joint part into the shoe to make discomfort less likely to occur.

That is, the toe partition shoe of the embodiment is a toe partition shoe having a partition between the first and second toes of the foot, and the partition forms the exterior of the toe partition shoe. A separate outer skin portion that advances from the outer skin tip of the shoe outer skin that covers the foot to the root side of the first and second toes of the foot and separates the first and second toes of the foot, and the outer skin tip An insole incision formed by entering from the tip of the insole of the insole placed below to the root side of the first and second toes of the foot, and the shoe placed below the insole a sole cut portion formed by entering from the tip of the sole of the sole to the base side of the first toe and the second toe of the foot, and the outer skin end portion of the separated outer skin portion is the insole cut portion. It is characterized in that it enters from above and adheres to the back side of the insole around the insole cutout, and the shoe sole adheres closely to the end of the outer skin and adheres to the insole.

Further, in the toe partition shoe, the separated outer skin portion may be formed of a single member, and the separated outer skin portion may be sewn and integrated with the outer skin tip portion.

Furthermore, in the toe-toe partition shoe, an insole curved portion may be formed in the insole portion that contacts the insole cutout portion.

Furthermore, in the toe-toe partition shoe, a sole curved portion may be formed in the shoe sole portion that is in contact with the sole cut portion.

Furthermore, the toe partition shoe may be provided with a protective piece at the tip of the shoe sole.

Furthermore, in the toe-toe partition shoe, a protective piece notch may be formed in the protective piece.

According to the between-toe partition shoe of the present invention, the between-toe partition shoe has a partition between the first and second toes of the foot, wherein the partition forms the exterior of the between-toe partition shoe and supports the foot. A separation skin part that advances from the skin tip of the shoe skin to be wrapped to the root side of the first and second toes of the foot and separates the first and second toes, and below the skin tip An insole cut portion formed by entering from the insole tip portion of the insole portion placed on the foot to the root side of the first toe and the second toe of the foot, and a shoe sole portion placed below the insole portion and a sole cut portion formed by entering from the tip of the sole to the root side of the first and second toes of the foot, and the outer skin end of the separated outer skin portion is above the insole cut portion It enters from the insole and adheres to the back side of the insole around the insole cut, and the shoe sole is in close contact with the edge of the outer skin and adheres to the insole. It is possible to ensure the flexibility of the toe portion of the shoe to enable free movement of the toes, and to suppress the permeation of water into the shoe from the joining portion of the members to make discomfort less likely to occur. can.

1 is an overall perspective view of a split-toe partition shoe according to an embodiment; FIG. 1 is an exploded perspective view of the toe partition shoe of the embodiment; FIG. FIG. 4 is a partially enlarged plan view of a partition; FIG. 10 is a partially enlarged front view showing the separated outer skin; FIG. 4 is a schematic diagram showing the positional relationship between the separated outer skin portion and the cut portion of the insole. It is a partial enlarged bottom view of an insole part. (A) Partially enlarged plan view of the insole portion, (B) its AA sectional view. (A) Partially enlarged plan view of the shoe sole, (B) its BB cross-sectional view.

The toe partition shoe 1 (also referred to as tabi shoes) of the embodiment shown in FIG. It has part 2. The first toe (big toe) of the foot is separated from the second to fifth toes by the partition part 2 and can be moved independently. Therefore, it is possible to freely move the first toe away from the second toe, spread the toes, and bend the first toe and the second to fifth toes separately. For this reason, it is useful as shoes for work, sports, etc., which require adjustment of the movement of the center of gravity of the body through the toes and adjustment of body balance such as posture maintenance.

Such a split-toe shoe 1 tends to have a complicated structure as compared with a normal round shoe in which the toe portion is not split. Therefore, the split-toe partition shoe 1 of the embodiment has a configuration that enhances the effect of suppressing water permeation from the bifurcated portion of the toe while satisfying the ease of movement of the first toe side of the foot. In the case of shoes for work, sports, etc., when used outdoors, there is a high frequency that the shoes get wet due to walking in puddles. From this point of view, the demand for waterproof specifications is high.

As shown in the perspective view of FIG. 1, the toe-toe partition shoe 1 of the embodiment has a structure similar to that of a normal shoe as a whole. A toe 3, a heel 4, and an instep opening 5 are provided. A partition portion 2 is formed in the toe 3 . The exterior 6 is composed of a shoe outer skin 10 made of natural leather, synthetic leather, or synthetic resin. The exterior 6 is provided with a hole or the like through which a shoelace is passed. A sole portion 30 called an outer sole or the like is joined directly below the exterior 6 . It should be noted that the illustrated partition shoe 1 is disclosed as one embodiment, and other shapes, forms, designs, etc. other than those illustrated may be used as appropriate. Also, if necessary, a shoelace may be appropriately attached to the shoe outer skin portion 10, and a spike or the like may be appropriately attached to the sole portion 30 (not shown).

FIG. 2 is an exploded perspective view showing the main configuration of the toe partition shoe 1. As shown in FIG. The split-toe partition shoe 1 mainly includes a shoe outer skin portion 10, an insole portion 20, and a shoe sole portion 30 in order from above. In addition, an inner sole, a fabric, a cushion member, a member for adjusting thickness, a steel plate for protection, etc., which are not shown, may be added as necessary.

The shoe outer skin part 10 forms the exterior 6 of the toe partition shoe 1 and covers the toes, the instep and the heel of the person who wears the shoe. In addition, the shoe outer skin portion 10 includes an outer skin tip portion 11 as a member for reinforcing the toe 3 of the toe partition shoe 1 . The shoe outer skin portion 10 and the outer skin tip portion 11 may be configured as one cloth or member, or may be combined as separate bodies. The separate outer skin portion 13 is provided at the outer skin tip portion 11 of the shoe outer skin portion 10 . A partition portion 2 is formed at the tip portion 11 of the outer skin of the toe 3 . The partition part 2 is a member that separates the first and second toes of the foot, and the separating skin part 13 plays a role of separating the first and second toes. The separating skin part 13 is a member that enters from the tip part 11 of the skin to the root 12 side of the first and second toes of the foot and separates the first and second toes.

The insole part 20 is arranged below the outer skin part 10 of the shoe and is a member that contacts the sole of the shoe wearer. The insole portion 20 is joined to the outer leather portion 10 of the shoe by adhesion. The toes, insteps and heels of the wearer of the shoe are covered with the outer leather part 10, and the sole is covered with the insole part 20 for protection. The insole portion 20 is formed with an insole cut portion 23 formed by entering from the tip portion 21 of the insole toward the base 22 of the first and second toes of the foot. The insole cut portion 23 is a cut-like portion for enhancing the mobility of the first and second toes, and has an elongated U-shape in the embodiment.

The sole portion 30 is arranged below the insole portion 20 and is a member that is in direct contact with the ground and absorbs the impact when the shoe touches the ground. The sole portion 30 is joined to the insole portion 20 by adhesion. The sole portion 30 is formed with a sole cut portion 33 that is formed by entering from the sole tip portion 31 toward the base 32 of the first and second toes of the foot. The sole cut portion 33 is a cut portion for enhancing the mobility of the first toe and the second toe, and in the embodiment, it has an elongated U shape like the insole cut portion 23 . In addition, a protective piece portion 35 is provided at the sole tip portion 31 of the sole portion 30 of the embodiment. A protective piece notch 36 is formed in the protective piece 35 .

FIG. 3 is a plan view showing an enlarged partition portion 2 of the toe partition shoe 1. FIG. As can be seen from FIGS. 2 and 3, the partition 2 of the toe partition shoe 1 is formed so as to be separated into left and right parts from the upper shoe outer skin 10 to the lower shoe sole 30 when the toe 3 is viewed from the front. It is Therefore, the first toe (big toe) can move vertically or horizontally independently of the other second to fifth toes, and the range of motion of the first toe is expanded.

FIG. 4 is a schematic front view showing the separated outer skin portion 13 configured as the partition portion 2 of the shoe outer skin portion 10 in an expanded manner. As can be seen from the drawings, the separate skin portion 13 is formed from a single member. In particular, it is made of the same material as the outer skin tip portion 11 of the shoe outer skin portion 10, such as natural leather, synthetic leather, or synthetic resin. Then, the separate outer skin portion 13 of a single member is sewn to the outer skin tip portion 11 side of the shoe outer skin portion 10 to be integrated. Reference numeral 14 in the drawing denotes an incision adhering portion, which will be described later in FIG.

In order to form the partition part 2 at the outer skin tip part 11 and separate the first toe and the second toe by the separated skin part 13, a fine curve corresponding to the toes is required. The curved portion is formed by adjusting the seam allowance when sewing a plurality of members. When dividing into small parts and sewing them to form the curved surface portion of the partition, the number of sewing steps and the weight increase occur. Furthermore, water can easily permeate through the sewn parts. Therefore, in order to form a curved surface portion while simultaneously suppressing water permeation and reducing the number of sewn parts, as in the separated outer skin portion 13 in FIG. Integration by sewing with the outer skin tip 11 side is adopted.

FIG. 5 is a schematic diagram showing the positional relationship of the separated skin portion 13 that bites into the insole cutout portion 23. As shown in FIG. The separated skin portion 13 is bent in a V shape in a plan view and sewn to the outer skin tip portion 11 side (see FIG. 4). Then, the folded separated outer skin portion 13 is inserted into the insole cut portion 23 . As shown in the figure, the separated skin portion 13 is in contact with the insole cut portion 23 of the insole distal end portion 21 of the insole portion 20 which is bifurcated. Thus, the toe 3 is divided into two sections, the first toe (big toe) and the second to fifth toes.

FIG. 6 is a partially enlarged bottom view of the insole tip portion 21 of the insole portion 20 and its vicinity. The skin ends of the separated skin portion 13 (cut-and-stick portion 14, stick-and-stick portion 15) enter from above the insole cut portion 23 and adhere to the back surface of the insole portion 20 around the insole cut portion 23. It is attached to the shoe sole portion 28 side. Then, as shown in FIGS. 1, 3, etc., the sole portion 30 is in close contact with the outer skin end portion (the incised adhered portion 14, the adhered portion 15) and the insole portion 20. As shown in FIG.

In the drawing, the shoe outer skin part 10 is put on the insole part 20 and fixed at a predetermined position, and the sticking part 15 (paste margin) for bonding the shoe outer skin part 10 and the insole part 20 is shown. Then, the sticking portion 15 is folded and adhered to the insole bottom portion 28 of the insole portion 20 , and the shoe outer skin portion 10 is fixed to the insole portion 20 . At the same time, the folded separated skin portion 13 is inserted into the insole cut portion 23 (see FIG. 5), and the cut sticking portion 14 (paste margin) of the separated skin portion 13 is also shown. The incised adhered portion 14 is also bent in the same manner as the adhered portion 15 and adhered to the insole bottom portion 28 around the insole cut portion 23 (see FIG. 5). In addition, in order to correspond to the U-shaped cut of the insole cut portion 23, the cut adhesive portion 14 is provided with an appropriate cut portion, and in addition to the flexibility of the material itself, it is easy to bend. has been improved.

It cannot be denied that the structure of the partition part 2 is likely to be complicated, and if it is desired to suppress the permeation of water from the sewn part as much as possible, it is formed as a single water-resistant member, as in the case of the separate outer skin part 13 of the embodiment. preferably. Therefore, the separation outer skin portion 13 is formed to have a sufficient length necessary for providing the incision sticking portion 14 . Therefore, the partition portion 2 is configured without impairing the integrity of the separated outer skin portion 13 . In particular, the surroundings of the roots 12 and 22 of the first and second toes of the foot when grounding are protected seamlessly by the folded back of the separate skin portion 13 and the incision sticking portion 14, so that the water resistance performance is improved.

7(A) is a partially enlarged plan view of an insole tip portion 21 of the insole portion 20, and FIG. 7(B) is a cross-sectional view taken along line AA in FIG. 7(A). An insole curved portion 24 is formed in the insole portion 20 in contact with the insole cut portion 23 . That is, the insole curved portion 24 is formed around the U-shaped insole cutout portion 23 including the root 22 . Further, in the insole portion 20 of the embodiment, an insole curved portion 24 is formed over the entire circumference of the insole portion 20 .

By forming the insole curved portion 24 around the U-shaped periphery of the insole cutout portion 23, the side of the insole bottom portion 28 (see FIG. 6) of the partition portion 2 is rounded. Therefore, when the incised adhered portion 14 of the separated outer skin portion 13 is adhered to the insole bottom surface portion 28 of the insole cutout portion 23, the incised adhered portion 14 is damaged at the corner due to the curvature of the insole curved portion 24. less likely to be In addition, the curvature of the insole curved portion 24 conforms to the shape of the first toe (big toe) and the second toe of the foot, improving the comfort of wearing the shoe.

8(A) is a partially enlarged plan view of the sole tip portion 31 of the sole portion 30, and FIG. 8(B) is a sectional view taken along the line BB of FIG. 8(A). A sole curved portion 34 is formed in the sole portion 30 in contact with the sole cut portion 33 . That is, the sole curved portion 34 is formed around the U-shaped sole cut portion 33 including the root 32 . Furthermore, in the shoe sole portion 30 of the embodiment, a sole curved portion 34 is formed along the entire periphery of the shoe sole portion 30 . The illustration is a schematic cross-sectional view, and the back surface (grounding surface) of the shoe sole portion 30 is provided with an appropriate shoe groove, anti-slip, spike, etc. (not shown) as necessary.

Forming the sole curved portion 34 around the U-shaped sole cutout portion 33 improves adhesion with the insole portion 20 having the insole curved portion 24 shown in FIG. . The inclination and curvature of the sole curved portion 34 are determined by the thickness of the insole curved portion 24, the incised adhesive portion 14 and the adhesive portion 15 attached thereto, and the folds of the adhesive portion 15 and the like caused by the bending process. It is defined in consideration of the thickness of In this way, the insole curved portion 24 of the insole portion 20 and the sole curved portion 34 of the sole portion 30 are more integrated, and when the first toe (big toe) of the foot is moved, the first toe in the partition portion 2 is moved. The ability to follow the movement of the toes is enhanced, and the comfort and mobility are improved.

Here, as understood from FIGS. 2, 3, and 8, a protective piece portion 35 is provided at the tip portion 31 of the shoe sole. The protective piece portion 35 may be the same member as the shoe sole portion 30, or a member different from the shoe sole portion 30 may be joined separately. In the embodiment, the sole portion 30 is composed of two layers of synthetic resin material, and the outermost contact portion extends to form a protective piece portion 35 . The protective piece 35 protects the toe 3 and the outer skin tip 11 from impact. In the case of shoes for work, sports, etc., the toe 3 is likely to be hit by other objects. In addition, with the conventional rounded toe, the impact can be distributed over the entire toe, and the impact on the toes is mitigated. However, since the toe partition shoe 1 has the partition part 2, the impact cannot be dispersed over the entire toe. Therefore, the protective piece portion 35 receives the impact in advance, making it difficult for the impact to be directly transmitted to the first and second toes in the separated skin portion 13 .

Furthermore, a protective piece cutout portion 36 is formed in the protective piece portion 35 . The protective piece notch 36 is formed as the partition 2 for left and right separation. If the protective piece portion 35 is a continuous member, the continuous protective piece portion 35 reduces the mobility of each toe in the partition portion 2 . Therefore, a protective piece cut-out portion 36 is provided in the protective piece portion 35 so that the sole cut-out portion 33 can move independently between the first toe and the second toe.

As described in the series of explanations, in the toe-to-toe partition shoe 1 (tabi shoes), the partition allows the first toe and the second to fifth toes of the foot to be independently movable, so that the body can be moved through the toes. It is useful as a shoe for work, sports, etc., where adjustment of the movement of the center of gravity and adjustment of body balance such as posture maintenance are required. The partition separating the first toe and the second toe of the foot is sewn without complicating the structure, and the water permeation suppressing effect of the bifurcated part of the partition, mainly the root part, is enhanced. . Therefore, the discomfort of getting wet when the shoes are worn for a long time is reduced.

1 toe split shoe 2 partition 3 toe 4 heel 5 instep opening 6 exterior 10 shoe outer skin 11 outer skin tip 12 base of first and second toes 13 separated outer skin 14 incision attachment 15 Sticking part 20 Insole part 21 Insole tip part 22 Foot base of first and second toes 23 Insole cut part 24 Insole curved part 28 Insole bottom part 30 Shoe sole part 31 Sole tip part 32 Foot Base of first toe and second toe 33 Sole cut portion 34 Sole bending portion 35 Protective piece portion 36 Protective piece cut portion

Claims (5)

A split-toe shoe having a partition between the first and second toes of the foot,
The partition part is
From the tip of the outer skin of the outer skin of the shoe that forms the exterior of the split-toe partition shoe and envelops the foot, the shoe is advanced to the root side of the first and second toes of the foot to cover the first and second toes of the foot. a separation outer skin to be separated;
an insole cut portion formed by entering from the insole tip portion of the insole portion disposed below the outer skin portion of the shoe to the root side of the first and second toes of the foot;
a shoe sole cut portion formed by entering from the sole tip portion of the shoe sole portion disposed below the insole portion to the base side of the first toe and the second toe of the foot,
Skin edge of the separated skin partis provided with an incision adhering portion having a cut portion corresponding to the U-shaped insole cutout shape, and the incision adhering portion isEnter from above the insole cut portion and onto the back side of the insole portion around the insole cut portionfoldedThe shoe sole portion is in close contact with the outer skin end portion and in close contact with the insole portion.death,
An insole curved portion is formed around the U-shaped periphery of the insole cut portion, which is in contact with the insole cut portion and includes the root, so that the insole bottom portion of the partition portion is rounded. occurs, and the curvature of the insole bending part follows the shape of the first and second toes of the foot,
Toe cuff partition shoes characterized by: 2. The split-toe partition shoe according to claim 1, wherein said separated outer skin portion is formed of a single member, and said separated outer skin portion is sewed and integrated with said outer skin tip portion. 3. The toe partition shoe according to claim 1 or 2 , wherein a sole curved portion is formed in said sole portion contacting said sole cut portion. 4. The toe partition shoe according to any one of claims 1 to 3 , wherein a protective piece is provided at the tip of the shoe sole. 5. The toe partition shoe according to claim 4 , wherein a protective piece notch is formed in said protective piece.

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