WO2024135003A1

WO2024135003A1 - Sandal-type shoe

Info

Publication number: WO2024135003A1
Application number: PCT/JP2023/032076
Authority: WO
Inventors: 修一藤木
Original assignee: 株式会社リフト
Priority date: 2022-12-22
Filing date: 2023-09-01
Publication date: 2024-06-27
Also published as: WO2024134822A1

Abstract

The present invention provides a sandal-type shoe that makes it possible to walk while sandwiching between the toes a rod-like member having cushioning properties, and therefore makes it possible to ensure a state in which the toes are spread and to promote health. Provided is a sandal-type shoe comprising a shoe sole part in which an outsole and an insole of substantially the same shape as the outsole are stacked and fixed, and an upper which is provided on and fixed to the shoe sole part and which envelops the foot, said sandal-type shoe being provided with a vertically elongate toe separation member that is embedded at a position which is on the toe side and which corresponds to the area between the hallux and the second toe, wherein: the toe separation member comprises a strap-like member that, in the vertical direction, passes through an insole through hole which passes through the insole and an upper through hole which passes through the upper; the lower end of the toe separation member is provided in a fixed manner to a bottom part, which is the bottom surface of the insole; and the upper end of the toe separation member extends toward the outside of the upper and has formed at the end thereof a loop which is for passing a shoelace therethrough.

Description

Geta-style shoes

The present invention relates to shoes, and in particular to geta-style shoes that allow the wearer to walk with a cushioned (stretchable, flexible) rod-shaped member between the toes, thereby ensuring that the toes are spread apart and improving health.

Shoes with various structures and manufacturing methods have been devised and widely used. There are various types of shoe structures, for example, shoes that consist of an upper and a sole material consisting of a midsole and an outsole, with the upper being made of natural leather, synthetic leather, or artificial leather, and the sole material being made of a leather sole or a synthetic sole. There are also shoes with a structure in which the upper is formed into a bag shape and directly glued to the outsole. In recent years, with a focus on health, shoes with the various structures described above and with further ingenuity in the various elements that make up the shoe have been developed and manufactured.

For example, Japanese Utility Model Application Publication No. 6-84902 discloses technology relating to sports shoes that allow the big toe to move freely, including tabi-style sports shoes in which the toe of the sports shoe is bifurcated like tabi socks, a notch is provided at the base of the big toe of the shoe sole, and a slit cover is glued over the top of the toe.

Spreading the space between the toes improves blood flow and encourages the excretion of waste products, which has a relaxing effect as well as helping to recover from fatigue and relieve swelling. The above configuration allows the big toe and index toe to be separated and the space between the toes to be spread apart, which is thought to make it possible to maintain good health. However, there is a problem in that constructing shoes with a structure similar to that of geta or tabi, which separates the big toe and index toe, is time-consuming and difficult to manufacture, and it is difficult to manufacture large quantities at low cost. There is also the problem that tabi (geta)-type shoes are poorly designed, so many people hesitate to wear them.

In addition, JP 2019-47940 A discloses technology relating to shoe insoles, which have an insole section smaller than the size of the sole of the foot, a thong section rising upward from the insole section and inserted between the big toe and index toe, and a thong section provided on the top of the thong section, the insole section further having an insole swirl section formed of spiral-shaped irregularities roughly centered on the lower end of the thong section, and the thong section exhibiting a spiral shape of irregularities twisted in a spiral shape. It is disclosed that this configuration makes it possible for the irregularities of the swirl section, insole swirl section, and thong section to constantly stimulate the thumb valley and the like when wearing shoes with this insole in them, making it possible to effectively have a favorable effect on the user's brain and body.

This technology does indeed make it possible to spread the big toe and index toe while wearing the shoes, but because it is a separate component from the upper and sole, it is not possible to always fix the thong in a stable position, which creates the problem of making it difficult to walk.

In today's health-conscious world, it is desirable to improve one's health by putting effort into shoes. In this situation, there is a demand for the development of geta-style shoes that are not only stylish but also allow the wearer to spread their toes to improve their health.

Japanese Utility Model Application Publication No. 6-84902 JP 2019-47940 A

In order to solve the above problems, the present invention aims to provide a geta-style shoe that allows the wearer to walk with a cushioned (stretchable and flexible) rod-shaped member between the toes, thereby ensuring that the toes are spread apart and improving health.

To achieve the above object, the geta-type shoes of the present invention are comprised of a sole part formed by stacking and fixing an outer sole and a midsole of substantially the same shape as the outer sole, and an upper that is fixed and placed on the sole part to encase the foot. The geta-type shoes are equipped with a vertically elongated toe separating member implanted at a position on the toe side corresponding to the crotch between the big toe and the index toe. The toe separating member is made of a string-like member made of any one or a combination of leather, synthetic leather, fiber material, or polyvinyl chloride that is attached vertically through a midsole through hole that is formed in the midsole and an upper through hole that is formed in the upper. The lower end of the toe separating member is fixed and placed on the bottom part that becomes the back surface of the midsole, and the upper end of the toe separating member extends toward the outside of the upper, and a loop is formed at the end for threading a shoelace through.

The geta-type shoes according to the present invention are comprised of at least a sole portion made of a sole and a bag-shaped upper fixed on the sole portion to encase the foot, and the geta-type shoes are equipped with a vertically elongated toe separating member implanted at a position on the toe side corresponding to the crotch between the big toe and the index toe, and the toe separating member is made of a string-like member made of any one or a combination of leather, synthetic leather, fiber material, and polyvinyl chloride, which is fitted vertically through a lower through-hole provided in the bottom surface of the bag-shaped upper and an upper through-hole provided in the upper part of the upper, and the lower end of the toe separating member is fixed to the bottom portion laid under the bag-shaped upper, and the upper end of the toe separating member extends outward from the upper part of the upper, and has a loop formed at the end for threading a shoelace through.

The loops are also connected in multiple directions in the extension direction of the toe separating member to adjust the tightness of the toe portion by the toe separating member.

The geta-type shoes according to the present invention are comprised of a sole part formed by stacking and fixing an outer sole and a midsole of substantially the same shape as the outer sole, and an upper that encases the foot and is fixed on top of the sole part. The geta-type shoes are equipped with a vertically elongated toe separating member implanted at a position on the toe side corresponding to the crotch between the big toe and the index toe. The toe separating member is made of a string-like member made of any one or a combination of leather, synthetic leather, fiber material, and polyvinyl chloride that is attached vertically through a midsole through hole provided in the midsole and an upper through hole provided in the upper. The lower end of the toe separating member is fixed to the bottom part that becomes the back surface of the midsole, and the upper end of the toe separating member extends toward the outside of the upper and is provided with a string length adjustment mechanism at the end, which is fixed to the upper.

The geta-type shoes according to the present invention are comprised of at least a sole portion made of a sole and a bag-shaped upper fixed on the sole portion to encase the foot, and the geta-type shoes are equipped with a vertically elongated toe separating member implanted at a position on the toe side corresponding to the crotch between the big toe and the index toe, and the toe separating member is made of a string-like member made of any one or a combination of leather, synthetic leather, fiber material, and polyvinyl chloride, which is attached vertically through a lower through-hole provided through the bottom surface of the bag-shaped upper and an upper through-hole provided through the upper part of the upper, and the lower end of the toe separating member is fixed to the bottom part laid under the bag-shaped upper, and the upper end of the toe separating member extends outward from the upper part of the upper, and is provided with a string length adjustment mechanism at the end, and the string length adjustment mechanism is fixed to the upper part of the upper.

The lace length adjustment mechanism is composed of a disk-shaped adjustment part with a one-way clutch structure that can be freely rotated and fixed, and a wire that is connected to the upper end of the toe separating member and wound around the adjustment part. By rotating the adjustment part and winding the wire, the tightening of the toe separating member around the toes can be adjusted.

The midsole is also configured to have midsole protrusions near the midsole through holes and along the joints of the toes, with which the toe joints engage.
Furthermore, the sole is configured to have a curved portion where the bottom surface of the sole is curved upward from the vicinity of the base of the toes to the tip.

The present invention has the configuration as described above in detail and thus has the following effects.
1. The toe separating member is implanted at a position corresponding to the space between the big toe and the index toe, which allows the space between the big toe and index toe to be spread apart and promotes health while maintaining the design of the shoe. In addition, one end of the toe separating member is fixed to the sole and the other end is fixed to the outside of the upper to form a loop, which allows the shoe to be worn by passing the shoelaces through the loop, making it possible to provide stylish shoes that are both functional and well designed.
2. The toe separator is installed at a position corresponding to the crotch between the big toe and the index toe of the shoe, which is made up of a sole and a bag-shaped upper, so that the same structure can be applied to sneakers and athletic shoes.

3. Since a plurality of loops are connected in the extending direction of the toe separating member, it is possible to adjust the fastening of the toe portion by the toe separating member.
4. The toe separating member is attached to the sole part, which is made of a laminated and fixed outer sole and inner sole, and the upper part of the geta-type shoe. The upper end of the toe separating member is extended toward the outside of the upper, and the end part is equipped with a lace length adjustment mechanism, so that the tightening of the toe part by the toe separating member can be easily adjusted by operating the adjustment mechanism.

5. A toe separating member is attached to a geta-type shoe consisting of a sole and a bag-shaped upper, and the upper end of the toe separating member is extended toward the outside of the upper, and a lace length adjustment mechanism is provided at the end. This makes it possible to easily adjust the tightness of the toe separating member around the toes by operating the adjustment mechanism, in the same way with sneakers and athletic shoes.
6. The strap length adjustment mechanism is configured with a disk-shaped adjustment part having a one-way clutch structure, so that the tightness around the fingers can be easily adjusted by simply rotating the adjustment part.

7. The provision of a convex part on the insole makes it easier to put pressure on the toes when walking, which can provide significant health benefits.
8. The curved bottom of the sole increases the pushing force and allows the toes to move more, resulting in greater health benefits.

The geta-type shoes according to the present invention will be described in detail below based on the embodiment shown in the drawings. Fig. 1a is a side cross-sectional view of the geta-type shoes according to the present invention, and Fig. 1b is a perspective view of the insole with the toe separating member planted. Fig. 1c is a perspective view of the toe separating member with multiple connected loops, and Fig. 1d is a perspective view of the lace length adjustment mechanism. Fig. 2a is a front cross-sectional view of the geta-type shoes, and Fig. 2b is a front cross-sectional view of the geta-type shoes with multiple toe separating members. Fig. 2c is a perspective view of the insole with multiple toe separating members, and Fig. 3a is a front cross-sectional view of the geta-type shoes made by the Strobel method. Fig. 3b is a front cross-sectional view of the geta-type shoes made by the Strobel method with multiple toe separating members, and Fig. 4a is a side cross-sectional view of the geta-type shoes with the toe separating members fixed by rivet-like members. Fig. 4b is a side cross-sectional view of the geta-type shoes made by the Strobel method with the toe separating members fixed by rivet-like members.

Fig. 5 is a side cross-sectional view of a geta-type shoe with a convex midsole, and Fig. 6 is a side cross-sectional view of a geta-type shoe with a curved portion. Fig. 7a is a perspective view of a geta-type shoe with two string-like members, and Fig. 7b is a perspective view showing an example of use of a geta-type shoe with two string-like members. Fig. 8 is a perspective view showing an embodiment of a geta-type shoe, and Fig. 9 is a perspective view showing another embodiment of a geta-type shoe.

Fig. 10 is a perspective view of a midsole with a toe separation assist member, and Fig. 11 is a perspective view of a midsole with a toe separation assist member. Figs. 12 and 13 are perspective views of a midsole with multiple loop-shaped toe separation assist members, and Fig. 14 is a perspective view of a midsole with a loop-shaped toe separation assist member in the inward direction.

The geta-style shoes of the present invention are made up of a sole 100, an upper 200, and a toe separator 10, and are geta-style shoes that allow the wearer to walk with a cushioned (stretchable, flexible) rod-shaped member between the toes.

The sole part 100 is a laminated member that constitutes the bottom part of the shoe, and as shown in Figures 1a and 2a, it is made up of at least an outsole 110 and a midsole 120, which are laminated and fixed together to form the sole part 100, but it may also be configured to further laminate a heel (not shown) and a midsole (not shown).

The outsole 110 is the component that forms the bottom of the shoe, and is the outermost component that directly touches the ground among the components that make up the shoe. Since the outsole 110 is the component that directly touches the ground, it is required to have sufficient rigidity, and it is desirable that it is made of a material that reduces the load when walking. In this embodiment, leather or synthetic leather material is used as the material, but it is not limited to this, and other materials such as reinforced rubber that has both rigidity and flexibility can also be used.

The midsole 120 is the inner sole component of the shoe that is layered on top of the outsole 110, and is a component that is installed mainly to improve the comfort of the shoe. In this embodiment, the midsole 120 has approximately the same shape as the outsole 110 and is made of leather, but is not limited to this and other materials such as rubber, soft urethane foam, felt, etc. can be appropriately selected and used.

As shown in Figures 1a and 2a, the upper 200 is a member that is fixedly installed on the sole 100 and constitutes the part that encases the foot. The upper 200 is formed to have a shape that fits the shape of the foot, encasing the toes and heels.

The geta-type shoes 1 and 3 of the present invention are configured to be equipped with a toe separating member 10 as shown in Figures 1a, 1b and 2a. The toe separating member 10 is a member that is equipped on the toe side at a position corresponding to the crotch between the big toe and index toe, and is made of a vertically elongated member. By providing this toe separating member 10, when the user wears the geta-type shoes 1 and 3, the big toe and index toe are spread apart as if wearing geta, and the user walks while maintaining this state. This improves blood circulation in the user's toes and makes it possible to promote health.

In this embodiment, as shown in Fig. 2a, the toe separating member 10 is configured to be installed vertically through the midsole through-hole _A1 provided in the midsole 120 and the upper through-hole _B1 provided in the upper 200. With this configuration, it is possible to reliably fix the toe separating member 10 inside the shoe, and it is possible to reliably spread the space between the big toe and the index toe when the user wears the geta-type shoes 1 and 3.

In this embodiment, the toe separating member 10 is made of a string-like member, and can be made of any one or more of the following materials: leather, synthetic leather, fiber material, or polyvinyl chloride. This configuration allows for a soft feel that does not put strain on the toes, and also allows for an improved design.

The geta-type shoes 1 of this embodiment are configured such that the lower end of the toe separating member 10, which is installed by passing through each through hole, is fixed to the bottom 122, which is the opposite surface of the midsole 120, as shown in Figure 2a, and the upper end of the toe separating member 10 extends toward the outside of the upper 200, and a loop L for passing a shoelace through is formed at the end, as shown in Figure 1c. With this configuration, it is possible to pass the shoelace through the loop L and firmly attach the shoe to the foot like a normal shoe with leather laces, making it possible to provide stylish shoes that are both functional and stylish in design.

In addition, in the geta-type shoes 3 of this embodiment, the lower end of the toe separating member 10, which is installed by passing through each through hole, is fixed to the bottom 122, which is the underside of the midsole 120, as shown in Figure 2a, and the upper end of the toe separating member 10 extends toward the outside of the upper 200, and is equipped with a lace-length adjustment mechanism 300 at its end, as shown in Figure 1d. The lace-length adjustment mechanism 300 is fixed to the upper 200. With this configuration, it is possible to easily adjust the tightness of the toe portion by the toe separating member by simply operating the lace-length adjustment mechanism 300.

As an example of the geta-type shoes according to the present invention, the geta-type shoes can be configured with multiple toe separators 10 implanted at positions on the toe side corresponding to the spaces between the toes, as shown in Figures 2b and 2c. In this way, by placing the toe separators 10 between the toes, it is possible to spread out the spaces between all of the toes of the user's foot, which promotes blood flow and provides greater health benefits.

In this case, as shown in Fig. 2b, in this embodiment, the toe separating members 10 can be configured so that any number of them are inserted vertically through a plurality of midsole through-holes ( _A1 to _A4 ) provided in the midsole 120 and a plurality of upper through-holes ( _B1 to _B4 ) provided in the upper 200. With this configuration, it is possible to reliably fix and install the toe separating members 10 inside the shoe, and it is also possible to position the toe separating members 10 between the toes, so that the toes can be reliably spread apart when the user wears the geta-type shoes.

As another embodiment of the geta-type shoes according to the present invention, geta-

type shoes

2 and 4 can be configured as shown in FIG. 3a, consisting of at least a sole 100 made of an outsole 110, and an upper 200 formed in a bag shape to encase the foot and fixed on the sole 100. In this embodiment, geta-

type shoes

2 and 4 are manufactured by the Strobel method, and the midsole 120 is not incorporated into the shoe, but the upper 200 formed in a bag shape is fixed directly to the sole 100. This configuration makes it possible to apply the structure of planting toe separating members 10 to sneakers and sneakers.

As shown in Figure 3a, the geta-

type shoes

2 and 4 are configured with a vertically elongated toe separator 10 implanted on the toe side at a position corresponding to the crotch between the big toe and index toe. With this configuration, when the user wears the geta-

type shoes

2 and 4, they can walk with the big toe and index toe spread apart, improving blood circulation in the user's toes and improving their health.

In this embodiment, as shown in Fig. 3a, the toe separating member 10 is configured to be installed vertically through a lower through-hole _C1 provided in the bottom surface of the upper 200 and an upper through-hole _D1 provided in the upper part of the upper 200. With this configuration, the toe separating member 10 can be securely fixed and installed inside the shoe, and when the user wears the geta-

type shoes

2, 4 such as sneakers, the user can reliably widen the space between the big toe and the index toe.

The geta-type shoes 2 of this embodiment are configured such that the lower end of the toe separating member 10, which is installed by passing through each through hole, is fixed to the bottom 210 of the bag-shaped upper 200 as shown in Figure 3a, and the upper end of the toe separating member 10 extends toward the outside of the upper upper part 220, and a loop L for passing a shoelace through is formed at the end as shown in Figure 1c. With this configuration, even with geta-type shoes 2 such as sneakers, it is possible to pass the shoelace through the loop L and firmly attach the shoe to the foot like a normal shoe with leather laces, making it possible to provide stylish shoes that are both functional and stylish in design.

In addition, in the geta-type shoes 4 of this embodiment, the lower end of the toe separating member 10, which is installed by passing through each through hole, is fixed to the bottom 210 of the bag-shaped upper 200 as shown in Figure 3a, and the upper end of the toe separating member 10 extends toward the outside of the upper upper part 220, and is equipped with a lace-length adjustment mechanism 300 at the end as shown in Figure 1d. The lace-length adjustment mechanism 300 is fixed to the upper upper part 220. With this configuration, it is possible to easily adjust the tightness of the toe portion by the toe separating member by simply operating the lace-length adjustment mechanism 300.

As an example of the geta-type shoes according to the present invention, as shown in FIG. 3b, the geta-type shoes can be configured to have a shoe manufactured by the Strobel method, which is made of a sole 100 made of an outsole 110, and an upper 200 fixed on the sole 100 and formed into a bag-like shape that encases the foot, and to have multiple toe separators 10 planted in the shoe. The toe separators 10 are planted vertically in multiple positions on the toe side that correspond to the multiple spaces between the toes. With this configuration, even with geta-type shoes such as sneakers, it is possible to spread out the spaces between all of the toes of the user's feet, which promotes blood flow and provides greater health benefits.

In this case, as shown in FIG. 3b, in this embodiment, the toe separating members 10 are configured to be installed vertically through a plurality of lower through-holes ( _C1 to _C4 ) formed in the bottom surface of the upper 200 and a plurality of upper through-holes ( _D1 to _D4 ) formed in the top of the upper 200, with an arbitrary number of toe separating members 10 passing through each of them.

With this configuration, even in the case of sneakers or other geta-type shoes, the toe separating member 10 can be securely fixed inside the shoe, and the toe separating member 10 can be positioned between each of the toes, allowing the user to reliably spread apart the toes when wearing sneakers or other geta-type shoes.

The loops L provided on the geta-type shoes 1 and 3 are connected in multiple directions in the extension direction of the toe separating member 10, as shown in Figure 1c. This configuration makes it possible to select the loop L through which the shoelace passes when putting on the geta-type shoes 1 and 3, and makes it possible to gradually adjust the tightness of the toe portion by the toe separating member 10 depending on the loop L through which the shoelace passes.

The lace length adjustment mechanism 300 provided on the geta-

type shoes

2 and 4 is composed of an adjustment part 310 and a wire 320, as shown in Figure 1d. The adjustment part 310 is made of a one-way clutch structure that can be freely rotated and fixed, and in this embodiment, is disk-shaped. The wire 320 is connected to the upper end of the toe separating member 10, and is installed by being wound around the adjustment part 310.

When the adjustment unit 310 is rotated to wind the wire 320, the toe separating member 10 is pulled up and squeezed. Because the adjustment unit 310 is a one-way clutch, the toe separating member 10 is held in a squeezed state when the rotation is stopped. In this embodiment, by pulling the adjustment unit 310, the locked state by the one-way clutch is released, and the adjustment unit 310 rotates in the opposite direction, making it possible to loosen the wound wire 320. With this configuration, it is now possible to easily adjust the tightness of the toe portion by the toe separating member 10 by simply operating the adjustment mechanism.

As another embodiment of the geta-type shoes according to the present invention, the toe separating member 10 is configured as a tubular member as shown in FIG. 4a, and furthermore, as its material, any one or more of silicon, rubber, leather, synthetic leather, fiber material, or polyvinyl chloride can be selected and used. Also, the toe separating member 10 is configured to be fixed and installed from the upper side and the midsole side by one or more rivet-like members 20 through one or more midsole through-holes (A ₁ to A ₄ ) and one or more upper through-holes (B ₁ to B ₄ ). With this configuration, it is possible to achieve a configuration that does not put a burden between the toes due to the soft touch, and it is possible to achieve the same external shape as a normal shoe in which the presence or absence of the toe separating member 10 cannot be visually confirmed from the outside.

In this embodiment, the toe separating member 10 is made of a cylindrical member as shown in FIG. 4b, and can be made of any one or more of silicon, rubber, leather, synthetic leather, fiber material, or vinyl chloride. The toe separating member 10 is fixed and installed by one or more rivet-like members 20 from the outside of the upper upper part 220 and the bottom part 210 of the bag-shaped upper through one or more lower through holes (C ₁ to C ₄ ) and one or more upper through holes (D ₁ to D ₄ ). With this configuration, even if the toe separating member 10 is a setta-

type shoe

3 or 4 such as a sneaker, it can be made to be soft to the touch and not to put a burden between the toes, and it can be made into an ordinary sneaker or athletic shoe in which the presence or absence of the toe separating member 10 cannot be visually confirmed from the outside.

As another embodiment of the geta-type shoes according to the present invention, the midsole 120 can be configured to have a protruding midsole convex portion 124 as shown in FIG. 5. The midsole convex portion 124 is a member that is provided in a position near the midsole through-hole and along the joints of each toe, and when the user wears the geta-

type shoes

1, 2, 3, and 4, the toe joints engage with it, allowing the user to kick firmly with the toes when walking. This configuration makes it easier to apply force to the toes when walking, making it possible to obtain high health benefits.

Furthermore, the outsole 100 can be configured to have a curved portion 112. As shown in FIG. 6, the curved portion 112 is a curve provided on the bottom surface of the outsole 100, and is provided so that the bottom surface of the outsole 100 curves upward from near the base of the toes to the tip of the outsole 100. This configuration increases the pushing force and allows the toes to move more, making it possible to obtain greater health benefits. Note that in order to provide the curved portion 112, the outsole 100 can be made thicker and the curved portion 112 can be cut so that a curve is formed at the tip of the outsole 100, but this configuration is not limited to this.

As another embodiment of the geta-type shoes according to the present invention, the toe separating member 10 can be configured to be composed of two string-like members as shown in FIG. 7a. One end of the toe separating member 10 can be fixed to the bottom 122, which is the opposite surface of the midsole 120, and the other end of the toe separating member 10 can be configured to have two string-like members extending outward from the upper 200 as shown in FIG. 7b. Similarly, one end of the toe separating member 10 can be fixed to the bottom 210 of the bag-shaped upper 200, and the other end of the toe separating member 10 can be configured to have two string-like members extending outward from the upper upper part 220 as shown in FIG. 7b. This configuration allows the toe separating member 10 to be used as shoelaces, making it possible to provide geta-type shoes with a high level of design.

As yet another embodiment of the geta-type shoes according to the present invention, as shown in FIG. 8, the geta-type shoes are configured such that a vertically elongated toe separator 10 is implanted on the toe side of the insole 120 at a position corresponding to the crotch between the big toe and the index toe, and the toe separator is fixedly attached to the left and right ends of the insole 120 so as to extend in both the left and right directions and encase the instep.

Also, as shown in FIG. 8, the upper 200 is configured to be attached to the outsole 110 so as to encase the midsole 120 equipped with the toe separating member 10. With this configuration, it is possible to construct the geta-type shoes of the present invention simply by placing the upper over footwear with a structure similar to geta or sandals.

In addition, as shown in FIG. 9, the geta-type shoes of the present invention can be configured with five curved members on the midsole 120 to encase each toe, or with four partitions at the tip of the toe portion of the upper 200, with each toe fitting into each of the partitioned spaces. Either configuration allows the toes to be spread apart, resulting in greater health benefits.

As another embodiment of the geta-type shoes according to the present invention, the toe separating member 10 can be configured to include a toe separating auxiliary member 12, as shown in FIG. 10. The toe separating auxiliary member 12 is a member connected to the toe separating member 10, extends inward and outward directions of the foot, and is a loop-shaped member that is fixedly attached to the inner and outer ends of the midsole 120 to encase the toes, and is made of a string or band-like elongated member. With this configuration, the toes feel better held when wearing the geta-type shoes, making walking easier, and this can provide health benefits.

In addition, in this embodiment, as shown in FIG. 11, the toe separating member 10 can be configured such that the toe separating auxiliary member 12, which is made of a string or strip-like elongated member connected to the toe separating member 10, extends only in the lateral direction of the foot and is fixed to the outer end of the midsole 120 to encase the toes and form a loop. This configuration improves the sense of hold on the toes when wearing geta-type shoes, and increases the freedom of movement of the big toe, making it easier to walk, and providing health benefits.

In addition, in this embodiment, the toe separating member 10 can be configured such that the toe separating auxiliary member 12, which is made of a string or strip-like elongated member connected to the toe separating member 10, extends inward and outward of the foot and is fixed to the inner and outer ends of the bottom surface of the upper 200 to wrap around the toes and form loops. With this configuration, even in geta-type shoes without insoles, the toes feel better held when worn, making walking easier and providing health benefits.

In addition, in this embodiment, the toe separating member 10 can be configured such that the toe separating auxiliary member 12, which is made of a string or strip-like elongated member connected to the toe separating member 10, is extended outward from the foot and fixed to the outer end of the bottom surface of the upper 200 to form a loop that envelops the toes. With this configuration, even in geta-style shoes without insoles, the toes feel better held when worn and the freedom of movement of the big toe increases, making it easier to walk and providing health benefits.

In addition, in this embodiment, as shown in Figures 12 and 13, the toe separating member 10 can be configured in such a way that the toe separating auxiliary member 12 extending outward is fixed to the insole 120 at positions corresponding to the spaces between the toes to form multiple loops. With this configuration, the toe separating auxiliary member 12 can be formed to encase each of the toes from the index to the little toe, providing an even better feeling of support for the toes when wearing geta-type shoes, and making it possible to obtain greater health benefits.

The toe separating member 10 can also be configured so that the toe separating auxiliary member 12 extending outward is fixed to the bottom surface of the upper 200 at positions corresponding to the spaces between the toes, forming multiple loops. With this configuration, even in geta-style shoes that do not use insoles, the toe separating auxiliary member 12 can be formed to encase each of the toes from the index to the little toe, providing an even better feeling of support for the toes when wearing geta-style shoes, and making it possible to obtain greater health benefits.

In addition, as another embodiment of the toe separation assisting member 12, the toe separation member 10 implanted at a position corresponding to the crotch between the big toe and the index toe can be extended inwardly of the foot and fixed to the inner end of the midsole 120 to form a loop that envelops the big toe. With this configuration, the big toe feels better held when wearing geta-type shoes, making it possible to obtain greater health benefits.

Furthermore, as another embodiment of the toe separation assisting member 12, the toe separation member 10 implanted at a position corresponding to the crotch between the big toe and the index toe can be extended inwardly of the foot and fixed to the inner end of the bottom surface of the upper 200 to form a loop that envelops the big toe. With this configuration, even if the shoes are geta-style shoes without an insole, the big toe feels more secure when worn, making it possible to obtain greater health benefits.

A side cross-sectional view of a geta-style shoe according to the present invention. A perspective view of a midsole with a toe separator. A perspective view of a toe separating member having a plurality of connected loops. Perspective view of the string length adjustment mechanism Front cross-section of geta-style shoes A front cross-sectional view of a geta-style shoe with multiple toe separators FIG. 1 is a perspective view of an insole provided with a plurality of toe separating members Front cross-section of a setta-style shoe made using the Strobel method A front cross-sectional view of a setta-style shoe made using the Strobel method with multiple toe separators A side cross-sectional view of a geta-type shoe in which a toe separating member is fixed with a rivet-like member A side cross-sectional view of a geta-style shoe made using the Strobel method, in which the toe separator is fixed with a rivet-like member A side cross-sectional view of a geta-style shoe with a convex midsole A side cross-sectional view of a geta-style shoe with a curved section FIG. 1 is a perspective view of a geta-style shoe provided with two string-like members; FIG. 13 is a perspective view showing an example of using geta-type shoes provided with two string-like members; FIG. 1 is a perspective view showing an embodiment of geta-style shoes; FIG. 13 is a perspective view showing another embodiment of the geta-style shoes. FIG. 1 is a perspective view of an insole provided with a toe separation support member FIG. 1 is a perspective view of an insole provided with a toe separation support member FIG. 1 is a perspective view of a midsole having a plurality of loop-shaped toe separation support members; FIG. 1 is a perspective view of a midsole having a plurality of loop-shaped toe separation support members; FIG. 1 is a perspective view of a midsole having a loop-shaped toe separation support member in the inner direction;

1, 2, 3, 4 Geta-type shoes 10 Toe separating member 12 Toe separating auxiliary member 20 Rivet-shaped member 100 Sole portion 110 Outsole 112 Curved portion 120 Midsole 122 Bottom portion 124 Midsole convex portion 200 Upper 210 Bottom portion 220 Upper upper portion 300 Lace length adjustment mechanism 310 Adjustment portion 320 Wire A ₁ to A ₄ Midsole through-holes B ₁ to B ₄ Upper through-holes C ₁ to C ₄ Lower through-holes D ₁ to D ₄ Upper through-holes L Loop

Claims

A geta-type shoe (1) is made up of a sole (100) formed by laminating and fixing an outsole (110) and a midsole (120) having substantially the same shape as the outsole, and an upper (200) that is fixed and placed on the sole and wraps around the foot.
The geta-type shoes (1) are provided with a vertically elongated toe separating member (10) at a position on the toe side corresponding to the crotch between the big toe and the index toe,
The toe separating member (10) is made of a string-like member made of any one or a combination of leather, synthetic leather, fiber material, and polyvinyl chloride, which is fitted vertically through a midsole through-hole (A 1 ) formed in the midsole (120) and an upper through-hole (B 1 ) formed in the upper (200);
The toe separating member (10) has a lower end fixed to the bottom (122) which is the underside of the insole (120), and the upper end of the toe separating member (10) extends toward the outside of the upper (200), and a loop (L) for threading a shoelace is formed at the end.
A geta-type shoe (2) comprising at least a sole (100) made of an outer sole (110) and an upper (200) fixedly placed on the sole and formed in a bag shape to enclose the foot,
The geta-type shoes (2) are provided with a vertically elongated toe separating member (10) at a position on the toe side corresponding to the crotch between the big toe and the index toe,
The toe separating member (10) is a string-like member made of any one or more of leather, synthetic leather, fiber material, and vinyl chloride, which is fitted vertically through a lower through-hole (C 1 ) formed in the bottom surface of the bag-shaped upper (200) and an upper through-hole (D 1 ) formed in the upper part of the upper (200);
The toe separating member (10) has a lower end fixed to a bottom (210) laid under the bag-shaped upper (200), and the upper end of the toe separating member (10) extends toward the outside of the upper upper part (220), and a loop (L) for threading a shoelace is formed at the end.
The geta-type shoes according to claim 1 or 2, characterized in that the loops (L) are connected in multiple directions in the extension direction of the toe separating member (10) in order to adjust the tightening of the toe portion by the toe separating member.
A geta-type shoe (3) is comprised of a sole part (100) in which an outsole (110) and a midsole (120) having substantially the same shape as the outsole are laminated and fixed, and an upper (200) that is fixed on the sole part and wraps around the foot,
The geta-type shoes (3) are provided with a vertically elongated toe separating member (10) at a position on the toe side corresponding to the crotch between the big toe and the index toe,
The toe separating member (10) is made of a string-like member made of any one or a combination of leather, synthetic leather, fiber material, and polyvinyl chloride, which is fitted vertically through a midsole through-hole (A 1 ) formed in the midsole (120) and an upper through-hole (B 1 ) formed in the upper (200);
The lower end of the toe separating member (10) is fixed to the bottom (122) which is the underside of the midsole (120), the upper end of the toe separating member (10) extends toward the outside of the upper (200), and is provided with a lace length adjustment mechanism (300) at the end, and the lace length adjustment mechanism is fixed to the upper.
A geta-type shoe (4) comprising at least a sole (100) made of an outer sole (110) and an upper (200) fixedly placed on the sole and formed in a bag shape to encase the foot,
The geta-type shoes (4) are provided with a vertically elongated toe separating member (10) at a position on the toe side corresponding to the crotch between the big toe and the index toe,
The toe separating member (10) is a string-like member made of any one or more of leather, synthetic leather, fiber material, and vinyl chloride, which is fitted vertically through a lower through-hole (C 1 ) formed in the bottom surface of the bag-shaped upper (200) and an upper through-hole (D 1 ) formed in the upper part of the upper (200);
The toe separating member (10) has a lower end fixed to a bottom (210) laid under the bag-shaped upper (200), and the upper end of the toe separating member (10) extends outward from the upper upper part (220), and is provided with a lace length adjustment mechanism (300) at the end, and the lace length adjustment mechanism is fixed to the upper upper part (220).
The lace length adjustment mechanism (300) is composed of a disk-shaped adjustment part (310) made of a one-way clutch structure that can be freely rotated and fixed, and a wire (320) that is connected to the upper end of the toe separating member (10) and wound around the adjustment part, and the tightening of the toe part by the toe separating member (10) is adjusted by rotating the adjustment part (310) and winding the wire (320). The geta-type shoes described in claim 4 or claim 5.
The geta-type shoes according to claim 1 or 4, characterized in that the midsole (120) is provided with a midsole protrusion (124) for engaging with the toe joints, located near the midsole through-hole and along the joints of each toe.
A geta-type shoe as described in any one of claims 1 to 7, characterized in that the sole (100) has a curved portion (112) in which the bottom surface of the sole is curved upward from the vicinity of the base of the toes to the tip.