JP7541758B2 - footwear - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Act Fact of disclosure (1) Publication date: February 22, 2022 (2) Website address (incorporating the submitted certificate) (3) Discloser: Issey Miyake Co., Ltd. (4) Content of disclosed invention: Issey Miyake Co., Ltd. disclosed on its website footwear invented by Kobayashi Nobutaka, Kawahara Sen, and Itakura Yuki.

The present invention relates to footwear.

For example, Patent Document 1 (JP Patent Publication 8-131201A) discloses footwear in which at least three grooves or through holes extending in the width direction are formed in the sole. In this footwear, a belt-like or string-like fastening material is provided, which is engaged with a folding engagement portion at the instep of the foot, folded back, and wrapped around the through holes and the side of the foot. The fastening material is then tightened to press the sole against the sole of the foot, which allows it to adhere closely to the sole of the foot and provide a good fit.

Japanese Patent Application Publication No. 8-131201

However, the footwear in Patent Document 1 has many complex parts and is not suitable for replacing parts due to damage or design changes, etc.

Therefore, the object of the present invention is to provide footwear that is simple in construction and allows parts to be easily replaced.

In order to solve the above-mentioned problems, the present invention provides:
a sole having first, second and third through holes extending in a width direction;
An instep band that is detachably inserted through the first through hole;
A heel band that is detachably inserted into the second through hole;
an ankle band that is detachably inserted through the third through hole,
The instep band inserted through the first through hole is held on the sole in a state spanning the instep of the wearer,
The heel band inserted through the second through hole is held on the sole in a state spanning the heel of the foot,
the ankle band inserted through the third through hole is held on the sole in a state of being extended around the ankle of the foot;
To provide footwear characterized by the above.

In addition, in the footwear of the present invention, it is preferable that the ankle band has an opening for receiving the heel band, and the heel band is held on the sole with the ankle band inserted through the opening.

In addition, in the footwear of the present invention, it is preferable that the first, second, and third through holes are aligned in order from the toe to the heel of the sole.

In addition, in the footwear of the present invention, it is preferable that the instep band, the heel band, and the ankle band each have an annular member at their base end through which their tip can be inserted, and include a locking member that locks each tip onto the corresponding band.

The present invention provides footwear that has a simple structure and allows parts to be easily replaced.

1 is a perspective view showing an outline of footwear 1 according to an embodiment of the present invention. 1A to 1C are a top view, a bottom view, a right side view and a left side view showing an outline of a sole 2. 3A and 3B are front and back views of the band 3. FIG. 3A and 3B are front and back views of a band 4. FIG. 3A and 3B are front and back views of the band 5. FIG. 1A to 1C are diagrams showing one scene in the process of attaching a band 3 to a sole 2. 13A to 13C are diagrams showing other scenes in the process of attaching the band 3 to the sole 2 13A to 13C are diagrams showing another scene in the process of attaching the band 3 to the sole 2. 1A to 1C are diagrams showing one stage in the process of attaching bands 4 and 5 to a sole 2. 13A to 13C are diagrams showing other scenes in the process of attaching the bands 4 and 5 to the sole 2. 13A and 13B are diagrams showing another scene in the process of attaching the bands 4 and 5 to the 13A and 13B are diagrams showing yet another scene in the process of attaching the bands 4 and 5 to the sole 2.

Representative embodiments of footwear according to the present invention will be described in detail below with reference to the drawings. Note that the drawings are intended to conceptually explain the present invention, and therefore may exaggerate or simplify dimensions, ratios, or numbers as necessary for ease of understanding, and the present invention is not limited to these.

In this embodiment, the footwear 1 is described as a sandal, but the present invention is also applicable to other types of footwear. In addition, the footwear 1 shown in the figure is for the left foot, and footwear for the right foot can be constructed by making the footwear for the left foot symmetrical.

As shown in FIG. 1, footwear 1 includes a sole 2, an instep band 3, a heel band 4, and an ankle band 5 (hereinafter abbreviated as bands 3 to 5).
Each component will be described below.

As shown in FIGS. 2(A) to (D), the sole 2 includes an insole 21, a midsole 22, and an outsole 23.
The insole 21 is a part that comes into contact with the sole of the wearer's foot, and is made of a relatively soft resin material, such as soft EVA (ethylene-vinyl acetate copolymer resin).
The midsole 22 is a part that supports the insole 21, and is made of a relatively hard resin material such as hard EVA.
The outsole 23 is a protective part that covers the bottom surface of the midsole 22, and is made of a relatively hard and wear-resistant resin material, such as synthetic rubber. The outsole 23 has an uneven pattern formed generally along the width direction of the sole 2 (a direction substantially perpendicular to the direction from the toe to the heel) in order to ensure a desired grip force (see FIG. 2(D)).

The sole 2 has through holes 24-28 that extend in the approximate width direction. In this embodiment, five through holes 24-28 are provided, but if three bands 3-5 are attached to the sole 2 as in this embodiment, at least three through holes are sufficient.

Specifically, the through holes 26-28 on the heel side extend almost in the width direction, and the through holes 24, 25 on the toe side are inclined by θ1, θ2 with respect to the through holes 26-28 on the heel side or the width direction, respectively (see FIG. 2(A)). From the viewpoint of the fit of the instep belt to the instep, which will be described later, it is preferable that the inclinations θ1, θ2 of the through holes 24, 25 with respect to the width direction are 0 degrees < θ1, θ2 < 10.0 degrees, and more preferably 2.0 degrees < θ1, θ2 < 5.0 degrees. Furthermore, it is preferable that the inclinations θ1, θ2 satisfy the relationship θ1>θ2, and it is particularly preferable that they are 4.0 degrees < θ1 < 5.0 degrees and 2.0 degrees < θ2 < 3.0 degrees.

The dimensions of the through holes 24 to 28 need only be sufficient to allow the insertion of the bands 3 to 5. For example, the widths W1 to W5 of the through holes 24 to 28 (the length in the direction connecting the toe and heel) are 20 mm to 30 mm, and the heights are 5 mm to 10 mm.
The interval between adjacent through holes 24 to 28 is approximately 15 mm to 20 mm, and the distance from the through holes 24 to 28 to the upper surface is approximately 14 mm to 20 mm.

In this embodiment, the through holes 24 to 28 are formed at the boundary between the midsole 22 and the outsole 23 (see Figures 2C and 2D). That is, the midsole 22 and the outsole 23 each have a corresponding groove, and the through holes 24 to 28 are formed by bonding the midsole 22 and the outsole 23 together.

Next, bands 3, 4, and 5 will be described.
The band 3 is a band-like or string-like part (see FIG. 1) that holds the instep of the wearer's foot on the sole 2. The band 3 may be mainly made of a band-like fabric (e.g., grosgrain tape) that is poorly stretchable but flexible.

For example, as shown in FIG. 3A, a ring, i.e., an annular member 33 is attached to the base end 31 of the band 3 .
At the tip 32 of the band 3, cowhide 34 is attached to the front surface and a hook-and-loop fastener 35 is attached to the back surface (see Figs. 3(A) and (B)). The cowhide 34 makes the tip 32 of the band 3 a little harder than the other parts, making it easier to insert the band 3 into the through-holes 24, etc. For this reason, the width of the cowhide 34 is a little narrower than the width of the other parts of the band 3.

A hook-and-loop fastener 36 that engages with the hook-and-loop fastener 35 at the tip 32 is attached to the underside of the band 3 near the center, and the two hook-and-loop fasteners 35, 36 form a locking member.
A high-density nylon tape 37 is disposed between the hook-and-loop fasteners 35, 36. The nylon tape 37 is the portion that comes into contact with the annular member 33 when the band 3 is attached to the sole 2, and has good slipperiness and excellent durability.

Therefore, the band 3 is inserted through the through hole 24, inserted from the tip 32 into the annular member 33, and secured by hook-and-loop fasteners 35, 36, so that it functions as an instep band. The band 3 may also be inserted through the through hole 25.

Next, the band 4 is a strip-like or string-like part that holds the wearer's heel on the sole 2 (see FIG. 1). The band 4 may be made primarily of a strip-like fabric (e.g., grosgrain tape) that is flexible but has little elasticity.

For example, as shown in FIG. 4A, a ring, that is, an annular member 43 is attached to a base end 41 of a band 4 .
A high-density nylon tape 44 is attached to the front surface of the tip 42 of the band 4, and a hook-and-loop fastener 45 is attached to the back surface of the tip 42 (see Figs. 4A and 4B). The nylon tape 44 makes the tip 42 of the band 4 more slippery than other parts, making it easier to insert the band 4 into the through-hole 26, etc.

A hook-and-loop fastener 46 that engages with the hook-and-loop fastener 45 at the tip 42 is attached to the back surface of the band 4 slightly toward the center of the tip 42, and the two hook-and-loop fasteners 45, 46 form a locking member.
A high density nylon tape 47 is disposed between the hook and loop fasteners 45 and 46 .
Narrow portions are provided on the ring sides of the bands 3, 4, and 5. These portions are disposed within the through holes 24 to 28. The nylon tape 47 is the portion that comes into contact with the annular member 43 when the band 4 is attached to the sole 2, and has good slipperiness and excellent durability.

The band 4 has a narrowed portion 48 on the base end 41 side, the narrowed portion 48 being narrower than other portions. The narrowed portion 48 is disposed within the through-hole (26, etc.) when the band 4 is attached to the sole 2. Therefore, the narrowed portion 48 facilitates positioning of the band 4 when it is attached.
Furthermore, when the band 4 is attached to the sole 2, it is held in a state in which it is tilted toward the heel side (see FIG. 1). Therefore, a large tensile stress is generated on the upper edge side of the band 4 in the width direction in response to the wearer's movement, but the constricted portion 48 also serves to reduce this tensile stress.

Therefore, the band 4 is inserted through the through hole 26, inserted from the tip 42 into the annular member 43, and secured by hook-and-loop fasteners 45, 46, so that it functions as a heel band. The band 4 can be held in a stable position by being inserted through the openings 58, 59 of the band 5. The band 4 may also be inserted through the through hole 27.

Next, the band 5 is a strip-like or string-like part that holds the wearer's ankle on the sole 2 (see FIG. 1). The band 5 may be made primarily of a strip-like fabric (e.g., grosgrain tape) that is flexible but has little elasticity.

For example, as shown in FIG. 5A, a ring, that is, an annular member 53 is attached to a base end 51 of a band 5 .
A high-density nylon tape 54 is attached to the front surface of the tip 52 of the band 5, and a hook-and-loop fastener 55 is attached to the back surface (see Figs. 5A and 5B). The nylon tape 54 makes the tip 52 of the band 5 more slippery than other parts, making it easier to insert the band 5 into the through-hole 28, etc.

A hook-and-loop fastener 56 that engages with the hook-and-loop fastener 55 at the tip 52 is attached to the back surface of the band 5 slightly toward the center of the tip 52, and the two hook-and-loop fasteners 55, 56 form a locking member.
A high-density nylon tape 57 is disposed between the hook-and-loop fasteners 55, 56. The nylon tape 57 is the portion that comes into contact with the annular member 53 when the band 5 is attached to the sole 2, and has good slipperiness and excellent durability.

The band 5 has openings 58, 59 for inserting the band 4. The openings 58, 59 are arranged on the base end 51 side at an interval slightly wider than the width of the heel portion of the footwear 1 (the length of the through hole 28).

Therefore, the band 5 is inserted through the through hole 28, inserted from the tip 52 into the annular member 53, and fastened by the hook-and-loop fasteners 55, 56, so as to function as an ankle band.
In addition, the band 5 can be held in a stable position by inserting the band 4 through the openings 58, 59 of the band 5. In other words, by wrapping the band 5 around the wearer's ankle and wrapping the band 4 around the heel, the wearer's foot is more securely held on the sole 2. The band 5 may also be inserted through the through hole 27.

The width and thickness of the bands 3-5 may be any as long as they can be inserted through the through holes 24-28, but for example, they may be about 1-2 mm narrower than the width and height of the through holes 24-28. The width of the tip 32 of the band 3 may be about 1-3 mm narrower than the other parts of the band 3. The narrowed portion 48 of the band 4 may be about 5-10 mm narrower than the other parts of the band 4.

Next, we will explain how to use the footwear 1, focusing on how to attach the bands 3 to 5 to the sole 2.

First, a method for wearing the band 3 will be described.
The band 3 is inserted through the through hole 24 of the sole 2 (see FIG. 6). Next, the tip 32 of the band 3 is folded back towards the base end 31 and inserted into the annular member 33 (see FIG. 7). The tip 32 of the band 3 is then folded back to the opposite side and fastened with hook-and-loop fasteners 35, 36 to form the instep band (see FIG. 8).
To remove the band 3 from the sole 2, the above steps are carried out in reverse.

The tightness can be easily adjusted by adjusting the fastening position of the band 3.
Depending on the preference of the wearer, the band 3 may be attached to the sole 2 so that the base end 31 is disposed on the outside of the foot. The band 3 may also be attached to the through hole 25.

Next, a method for attaching the bands 4 and 5 will be described.
The band 5 is inserted through the through hole 28, and the band 4 is inserted through the opening 59 of the band 5 (see FIG. 9). As a result, the annular members 43, 53 are disposed on opposite sides of the sole 2. Next, the tip 42 of the band 4 is inserted through the through hole 26, and further through the opening 58 of the band 5 (see FIG. 10).

An ankle band is formed by inserting a tip 52 of band 5 into an annular member 53, folding it back to the opposite side, and fastening it with hook-and-loop fasteners 55, 56. At the same time, a heel band is formed by inserting a tip 42 of band 4 into an annular member 43, folding it back to the opposite side, and fastening it with hook-and-loop fasteners 45, 46 (see Figures 11 and 12).
To remove the bands 4, 5 from the sole 2, the above procedure is carried out in reverse.

The tightness around the ankles and heels can be easily adjusted by adjusting the fastening positions of the belts 4 and 5.
Depending on the preference of the wearer, the bands 4 and 5 may be attached to the sole 2 so that the base end 41 is located on the outside of the foot and the base end 51 is located on the inside of the foot. The band 4 may be attached to the through hole 27, or the band 5 may be attached to the through hole 27.

According to this embodiment, the footwear 1 is composed of simple parts: the sole 2 and the belts 3 to 5. Moreover, because the bands 3 to 5 are not fixed to the sole 2, these parts can be easily attached and removed.

Therefore, damaged parts can be easily replaced with spare parts. Or, parts can be replaced to change the design of the footwear 1. For example, it is possible to replace the belt 3 with one of a different color or pattern, or with one that has a cover that covers the instep. This also contributes to increasing the design leeway of the designer of the footwear 1.

In addition, since footwear 1 can be restored by purchasing the parts to be replaced and using the remaining parts as is, there is no need to purchase new footwear 1. Therefore, footwear 1 is economical and conforms to a sustainable society.

In addition, because bands 3 to 5 are not fixed to sole 2 (there are no fixed parts), it is possible to prevent damage caused by stress being concentrated in specific locations of the remaining parts due to large deformation of any one part.

The above describes representative embodiments of the present invention, but the present invention is not limited to these, and various design modifications are possible, and all such modified forms are included in the technical scope of the present invention.

For example, the band 3 may be attached to both the through holes 24 and 25 .
The band 3 may have a cover that covers the instep of the wearer's foot. In other words, the band 3 may be called an upper.

Band 4 may be attached to both through holes 26 and 27. Alternatively, band 5 may be attached to both through holes 27 and 28.

1 Footwear 2 Sole 3 Instep band 4 Heel band 5 Ankle band 24-28 Through holes

Claims (4)

a sole having first, second and third through holes extending in a width direction;
An instep band that is detachably inserted through the first through hole;
A heel band that is detachably inserted into the second through hole;
an ankle band that is detachably inserted through the third through hole,
The instep band inserted through the first through hole is held on the sole in a state spanning the instep of the wearer,
The heel band inserted through the second through hole is held on the sole in a state spanning the heel of the foot,
The ankle band inserted through the third through hole is held on the sole in a state of being extended around the ankle of the foot,
The first, second, and third through holes are aligned in sequence from the toe to the heel of the sole,
In the width direction of the sole, the first through hole is inclined outwardly in a range of more than 0 degrees and less than 10.0 degrees with respect to the second through hole and the third through hole ;
Footwear characterized by: The ankle band has an opening for receiving the heel band,
The heel band is held on the sole in a state where the heel band is inserted through the opening of the ankle band;
Footwear according to claim 1, characterized in that In the width direction of the sole, the first through hole is inclined outwardly with respect to the second through hole and the third through hole in a range of more than 0 degrees and less than 5.0 degrees;
Footwear according to claim 1, characterized in that The instep band, the heel band, and the ankle band each have a ring-shaped member at a base end through which a tip can be inserted, and each includes a locking member for locking each tip onto the corresponding band;
4. The footwear according to claim 1,