JP7717355B2 - Foot cover and method for manufacturing the foot cover - Google Patents

Description

The present invention relates to foot covers, and more particularly to foot covers that are joined by methods other than sewing.

In recent years, it has become common to wear shoes such as pumps and sneakers as if they were directly on bare feet. When shoes are worn directly on bare feet, sweat and other factors can cause the inside of the shoes to become steamy, so foot covers are increasingly being worn. However, if the foot covers have stitching (seams), they can be pressed by pumps or other shoes, causing the stitching to dig into the skin or rub against the skin, resulting in a less comfortable fit.

In response, foot covers without stitching have been proposed. For example, the following Patent Documents 1 and 2 disclose foot covers formed into a three-dimensional shape without stitching by joining knitted fabrics with adhesive tape. In Patent Document 1, a first stretchable knitted fabric forming the side, heel, and toe portions and a second stretchable knitted fabric forming the sole portion are joined with an adhesive member such as adhesive tape to form the foot cover into a three-dimensional shape without stitching. In Patent Document 2, a single piece of stretchable knitted fabric is joined with adhesive tape to form the foot cover into a three-dimensional shape without stitching.

JP 2018-95996 A (Published on June 21, 2018) JP 2017-14669 A (Published on January 19, 2017)

However, the technologies in Patent Documents 1 and 2 are configured to apply adhesive tape to the heel (rear of the heel) area, where foot covers are prone to slipping off. Foot covers are typically designed to cover the foot in a small area so that they are not noticeable when worn, making them prone to slipping off. When foot covers come off, they often come off first from the heel, and then the sole and sides of the foot near the heel often come off as well, following the heel. Applying adhesive tape to the heel (rear of the heel), where foot covers are prone to slipping off, reduces the elasticity of the fabric, causing the foot to shift out of position and making it even more prone to slipping off. Furthermore, because the heel is the area where the fabric tightly presses against the foot, applying adhesive tape to the heel (rear of the heel) also creates the problem of reduced comfort.

One aspect of the present invention was conceived in consideration of the above-mentioned problems, and aims to provide foot covers that reduce discomfort and prevent slipping or falling off.

In order to solve the above problems, one aspect of the present invention provides a foot cover comprising a plantar portion that covers the sole of the foot, and side portions that cover the toes, heel, and both sides of the foot from the toes to the heel. The side portions are made of annular stretchable fabric with an opening that serves as an opening for the shoe, and the sole portion and the side portions are joined together using a joining method other than sewing. The side portions are made of the annular stretchable fabric without any seams, or have a seam at a position other than the rear of the heel corresponding to the rear end of the heel, and are made of the annular stretchable fabric where the stretchable fabric pieces are joined together using a joining method other than sewing.

With this configuration, the side portion is made of seamless, annular stretch fabric, or annular stretch fabric joined seamlessly at all positions except the back of the heel, making it possible to provide a foot cover that is comfortable to wear and prevents slipping and falling off.

Furthermore, in a foot cover according to one aspect of the present invention, the annular stretchable fabric may have a substantially planar shape.

With this configuration, the annular stretch fabric that forms the side portion has a generally flat shape, which reduces the overall height of the foot cover when not being worn.

In addition, in a foot cover according to one aspect of the present invention, the sole portion and the side portion may be joined so that the entire foot cover has a substantially planar shape in a side view.

With the above configuration, the entire foot cover has a substantially flat shape, so when the foot cover is attached to the template and packaged, no wrinkles or creases are created, and the product can be displayed in a sales area without losing its shape. Furthermore, because it is not bulky, it does not take up much storage space and can be transported efficiently.

In addition, in one aspect of the foot cover of the present invention, the sole portion may include an inner fabric that contacts the foot and an outer fabric that covers the inner fabric.

With this configuration, the sole has a double structure, which improves the strength of the sole.

Furthermore, in one aspect of the foot cover of the present invention, the inner fabric and the outer fabric may be made of different materials.

With this configuration, for example, by using a breathable natural fiber for the inner fabric that comes into contact with the skin and a strong synthetic fiber for the outer fabric, it is possible to achieve both comfort and strength.

Furthermore, in a foot cover according to one aspect of the present invention, the joint between the sole portion and the side portion may be located on the sole side of the foot.

With this configuration, the joint is located on the sole of the foot, not on the toes where pressure from the joint is easily felt, improving comfort.

Furthermore, the foot cover according to one aspect of the present invention may further include a joining member that seamlessly joins the outer periphery of the sole portion and the outer periphery of the side portion.

With this configuration, the outer periphery of the sole and the outer periphery of the side are joined using a joining member such as adhesive tape, thereby improving the strength of the joint.

Furthermore, in a foot cover according to one aspect of the present invention, the sole portion and the side portion may be joined by the joining member without overlapping each other.

With this configuration, the sole and side sections do not overlap at the joint, allowing for a thinner joint and improving comfort.

Furthermore, in the foot cover according to one aspect of the present invention, the stretchable fabric may be made of free-cut fabric.

This configuration eliminates the need to fold the edges of the opening or attach narrow, stretchy fabric along the edges of the opening to prevent fraying, improving comfort.

In order to solve the above problems, one embodiment of the present invention provides a method for manufacturing a foot cover, which includes a sole-forming step of forming a plantar portion that covers the sole of the foot; a side-forming step of forming side portions that cover the toes, heel, and both sides of the foot from the toes to the heel; and a joining step of joining the sole portion and the side portions together by a joining method other than sewing. In the side-forming step, stretchable fabric is cut to form the side portions that are approximately flat and seamless, annular, and have an opening that will become the opening, or stretchable fabric is joined together by a joining method other than sewing to form the side portions that are approximately flat and annular, and have an opening that will become the opening, and have a seam at a position other than the rear of the heel that corresponds to the rear end of the heel.

According to the above method, the side portion forming process forms a substantially flat, seamless, annular side portion, or a substantially flat, seamless annular side portion at the rear of the heel. This makes it possible to manufacture foot covers that minimize deterioration in comfort and stretchability.

In addition, in the manufacturing method for foot covers according to one aspect of the present invention, the sole portion and the side portion may be joined together using a strip-shaped joining member in the joining step so that the sole portion and the side portion do not overlap each other.

With this method, the sole and side sections are joined by a strip-shaped joining member so that they do not overlap, allowing for a thinner joint and improving comfort.

In addition, in the manufacturing method for foot covers according to one aspect of the present invention, the sole portion and the side portion may be joined by thermal fusion in the joining step so that the outer periphery of the sole portion and the outer periphery of the side portion overlap each other.

The above method allows the sole and side sections to be easily joined by thermal fusion without using separate parts.

In addition, in the manufacturing method for foot covers according to one aspect of the present invention, the sole portion and the side portion may be joined with an adhesive in the joining step so that the outer periphery of the sole portion and the outer periphery of the side portion overlap each other.

The above method allows the sole and side sections to be easily joined using adhesive.

One aspect of the present invention provides foot covers that prevent a decrease in comfort and prevent slipping or falling off.

1 is a perspective view showing a state in which a foot cover according to a first embodiment of the present invention is worn on a foot. FIG. FIG. 3 is a bottom view of the foot cover shown in FIG. 2 . FIG. 3 is a front view of the foot cover shown in FIG. 2 . FIG. 3 is a left side view of the foot cover shown in FIG. 2 . 3 is a view showing the foot cover shown in FIG. 2 turned upside down to expose the joining member. FIG. FIG. 3 is an end view taken along line AA shown in FIG. 2. FIG. 10 is a plan view of a foot cover according to a second embodiment of the present invention.

[Embodiment 1]
An embodiment of the present invention will be described below with reference to Figures 1 to 6. In this embodiment, an example of a foot cover 1 that can be used on both the left and right feet so that there is no confusion between the left and right foot will be described. However, this is not limited to this, and it may also be provided with a left foot and a right foot. Furthermore, for example, the foot cover 1 may be in the shape of a tabi or a five-toed shape.

(Foot cover overview)
Fig. 1 is a perspective view showing a foot cover 1 according to an embodiment of the present invention worn on a foot F. As shown in Fig. 1, the foot cover 1 includes a plantar portion 2 that covers the sole 10 of the foot F, and side portions 3 that cover the toes 11, heel 12, and both sides 13 of the foot F extending from the toes 11 to the heel 12. The foot cover 1 is formed by joining the outer peripheries of two substantially planar pieces of fabric that make up the sole portion 2 and the side portions 3 together using a joining method that does not involve sewing (a seamless joining method). The term "sewing" as used here refers to a general method of joining two pieces of fabric together using a separate thread-like material, and the joining method (sewing method) and type of thread are not limited.

The side portion 3 is made of stretchy fabric, and an opening (shoe opening) 3b for putting the foot F in and out is cut out in a roughly oval shape in the approximate center. The shoe opening 3b is opened wide enough to expose the instep and ankle of the foot F. This allows the entire foot cover 1 to be hidden inside the shoe when it is worn, allowing it to be worn discreetly.

Synthetic fibers such as nylon or polyester are used for the sole portion 2 and side portion 3 so that they can be joined together by, for example, ultrasonic welding, as described below. Furthermore, knitted fabrics are preferred due to their high elasticity, but woven fabrics are also acceptable.

(Foot cover configuration)
Next, the specific configuration of the foot cover 1 will be described with reference to Figures 2 to 6. Figure 2 is a plan view of the foot cover 1 according to this embodiment, Figure 3 is a bottom view of the foot cover 1, Figure 4 is a front view of the foot cover 1, Figure 5 is a rear view of the foot cover 1, and Figure 6 is a view of the foot cover 1 turned upside down to expose the joining member 4.

As shown in Figure 2, the side portion 3 is formed by cutting a single seamless piece of stretchable fabric so that it corresponds to the outer periphery of the sole portion 2 and is slightly larger than the sole portion 2. The side portion 3 also has a hole cut out in the approximate center to provide the opening portion 3b. This results in the side portion 3 being formed in a ring shape that is approximately flat and seamless, with the opening portion 3b at its center.

The side portion 3 is not limited to a seamless configuration. The side portion 3 may have a seam at any position other than the rear heel portion corresponding to the rear end of the heel 12 (see reference symbol "32a" in Figure 8). In other words, the side portion 3 need not have a seam at the rear heel portion. Having no seam at the rear heel portion can prevent the heel portion of the foot cover 1 from becoming less comfortable when worn. In this specification, the rear end of the heel 12 refers to the back region of the heel 12 (calcaneus) located at the rear end of the foot F. The rear heel portion of the side portion 3 refers to the rear end region of the heel portion of the side portion 3 corresponding to the rear end of the heel 12, and particularly refers to the vertical linear region that divides (approximately bisects) the heel portion of the side portion 3 (or the back of the heel 12 (calcaneus)) into left and right halves when viewed from behind when worn. An example of a foot cover configuration with a seam at the side portion will be described in the embodiment described below.

The side portions 3 are made of stretchy fabric, allowing them to conform to the three-dimensional shape of the foot F when the foot cover 1 is worn, preventing the foot cover 1 from slipping off or shifting out of position.

The area covering the instep of the foot F can also be adjusted by varying the shape of the cutout at the opening 3b. Increasing the longitudinal length of the opening 3b allows for a so-called "low-profile" foot cover 1. On the other hand, shortening the longitudinal length of the opening 3b allows for a "high-profile" foot cover 1.

In addition, by making the diameter of the arc 3c on the heel 12 side of the opening 3b larger than the arc 3d on the heel 12 side of the outer periphery of the foot cover 1, the area covered by the heel 12 of the foot F is increased when worn, preventing the foot cover 1 from slipping off.

Furthermore, by constructing the side portion 3 from free-cut fabric (fabric that does not require finishing at the edges), there is no need to fold the outer edge of the opening portion 3b or attach narrow, stretchy fabric or resin along the periphery of the opening portion 3b to prevent fraying, and comfort is improved.

As shown in Figure 3, the sole 2 has a toe portion 2d and a heel portion 2e each formed in an arc shape to match the shape of the sole 10 of the foot F. The diameter of the arc of the toe portion 2d is slightly larger than the diameter of the heel portion 2e. In addition, the arch portions 2f on both sides of the foot, extending from the toe portion 2d to the heel portion 2e, are each formed in an arc shape, and are formed to be gently concave as they approach each other. However, the sole 2 is not limited to this shape and can be modified to other shapes to match the shape of the foot F.

As shown in Figure 4, the foot cover 1 has a generally planar appearance when viewed from the side. That is, the foot cover 1 is formed by seamlessly joining the outer peripheries 2a and 3a of two generally planar pieces of fabric that make up the sole portion 2 and the side portion 3, so that the foot cover 1 as a whole has a generally planar shape.

In more detail, when the foot cover 1 is not being worn, the side portion 3 has a substantially planar, seamless shape, without any processing, knitting, or joining stitching that would cause it to rise in a direction other than a plane, such as a substantially vertical direction, at the heel portion of the foot cover 1. The foot cover 1 is formed by joining the outer periphery 3a of the side portion 3 to the outer periphery 2a of the sole portion 2, which also has a substantially planar shape like the side portion 3. Therefore, as shown in Figures 4 and 5, the foot cover 1 has a substantially planar shape overall when viewed from the side or front. In other words, it has a non-three-dimensional shape with no specific height determined by the thickness of the fabric and joining members and any naturally occurring wrinkles or creases. When a display card resembling the sole of a foot is attached and the fabric is slightly stretched along the surface of the card, the fabric surface of both the front and back of the foot cover 1 (the side portion 3 and sole portion 2 of the foot cover 1) is in close contact with the surface of the card.

This means that when the foot cover 1 is attached to the backing and packaged, it does not get wrinkled or creased, and can be displayed in a sales area without damaging the product's shape. It also does not take up much space, making it easy to store and transport efficiently. Furthermore, the step of joining the seams can be omitted.

In addition, because the entire shoe has a generally flat shape, the fabric of the side portion 3 that corresponds to the heel 12 rises to conform to the shape of the heel when worn, making it easier for the fabric to exert a force in the direction of fitting to the heel 12. Furthermore, because the outer peripheries 2a, 3a of the sole portion 2 and side portion 3 are joined seamlessly, there are no sewn protrusions, making it easier for the shoe to fit the shape of the heel. This improves the overall fit of the heel 12 and prevents slipping or slipping off.

(Ultrasonic welding)
The sole portion 2 and the side portion 3 are joined by, for example, ultrasonic welding. Ultrasonic welding is a method in which ultrasonic vibrations and pressure are applied to the two pieces of fabric to be joined, generating frictional heat at the joining surfaces of the fabrics, causing them to melt and join instantly. The joining surfaces of the fabrics to be joined by ultrasonic welding can be butted together. This eliminates the need to overlap the two pieces of fabric for joining, and allows for the formation of a substantially flat joint portion 5 that does not protrude, improving comfort.

(Joining member)
As shown in Figure 6, the joining portion 5 is preferably located near the outer edge of the sole 10 of the foot F, but may be located closer to the center. In this embodiment, a joining member 4 such as adhesive tape is further attached to the inside of the foot cover 1 on the joining portion 5. The adhesive tape is made of a sticky material such as an acrylic or silicone resin or synthetic rubber, and is used in a method of joining fabrics together by heat-sealing the adhesive tape.

By attaching a strip-shaped joining member 4 to the inside of the side surface 3 so that the line of the joining portion 5 overlaps the widthwise center of the joining member 4, the strength of the joining portion 5 can be increased.

When the foot cover 1 is worn on the foot F, the side portions 3 are made of stretchable fabric, so they stretch to fit the shape of the foot F. This allows the foot cover 1 to fit the foot F. Compared to a configuration in which the sole portion 2 and the side portions 3 are sewn together, the sewn joint creates a thin, convex line-like joint 5. As a result, when the wearer walks, the joint 5 may move with their movement. The joint 5 may press against the toe 11, or the wearer may step on the convex joint 5, resulting in a decrease in comfort. Furthermore, the convex joint 5 makes it difficult to form the entire foot cover into a generally flat shape. In particular, if the fabric of the side portions 3 is thin, convex portions may appear on the surface, which can detract from the aesthetic appearance when displayed.

In contrast, the foot cover 1 according to this embodiment seamlessly joins the substantially planar sole portion 2 and side portion 3. This allows the entire foot cover 1 to be optimally formed into a substantially planar shape, while also preventing the cover from becoming less comfortable to wear or slipping off easily.

(Method for manufacturing foot covers)
Next, we will explain the manufacturing method of the foot cover 1. The manufacturing method of the foot cover 1 includes a sole forming step of forming the sole portion 2, a side portion forming step of forming the side portion 3, and a joining step of seamlessly joining the sole portion 2 and the side portion 3.

In the manufacturing method of the foot cover 1, in the side portion forming process, stretchable fabric is cut along the required pattern to form a substantially planar, seamless, annular side portion 3 with an opening that becomes the opening 3b. Therefore, in the joining process, the outer peripheries of the two substantially planar pieces of fabric that make up the sole portion 2 and side portion 3 are joined seamlessly, thereby manufacturing a foot cover 1 that prevents a decrease in comfort and stretchability.

In the joining process, the sole portion 2 and the side portion 3 may be ultrasonically welded together so that they do not overlap, and the sole portion 2 and the side portion 3 may then be joined together with a strip-shaped joining member 4. This allows the thickness of the joining portion 5 to be made thinner, improving comfort.

Furthermore, in the joining process, the sole portion 2 and the side portion 3 may be joined by heat fusion or adhesive so that the outer periphery of the sole portion 2 and the outer periphery of the side portion 3 overlap each other. This makes it possible to easily join the sole portion 2 and the side portion 3. Furthermore, a joining member 4 such as adhesive tape may be attached to the joining portion 5 where the sole portion 2 and the side portion 3 are joined by heat fusion or adhesive. This increases the strength of the joining portion 5.

[Embodiment 2]
Another embodiment of the present invention will be described below with reference to Fig. 7. For ease of explanation, the same reference numerals will be used to designate components having the same functions as those described in the above embodiment, and the description thereof will not be repeated.

(double bottom)
Figure 7 is an end view taken along line A-A in Figure 2. Note that the foot cover 1 is configured in a substantially planar shape, but is illustrated three-dimensionally in Figure 7 for ease of explanation. As shown in Figure 7, the sole 2 may be configured to include an inner fabric 2b that contacts the foot F and an outer fabric 2c that covers the inner fabric 2b from the outside. This allows the inner fabric 2b and the outer fabric 2c to be made of different materials, for example, by using a natural fiber fabric that is gentle on the skin and has good breathability for the inner fabric 2b and a synthetic fiber fabric that is strong and can be ultrasonically welded for the outer fabric 2c.

In this case, the outer fabric 2c of the sole 2 and the side surface 3 are joined by, for example, ultrasonic welding. A joining member 4a such as adhesive tape is applied over the joined portion 5 joined by ultrasonic welding to reinforce it. The inner fabric 2b is then placed on top of this, and another joining member 4b such as adhesive tape is applied to join the joining member 4a and the inner fabric 2b.

In this way, by joining the parts using ultrasonic welding and then further joining them with a joining material 4 such as adhesive tape, the joined area 5 can be made flat, preventing a decrease in comfort while maintaining sufficient joint strength.

[Embodiment 3]
Yet another embodiment of the present invention will be described below with reference to Fig. 8. For ease of explanation, members having the same functions as those described in the above embodiment will be denoted by the same reference numerals, and their description will not be repeated.

(Foot cover configuration)
Fig. 8 is a plan view showing a foot cover 1a according to an embodiment of the present invention, in which the foot cover 1a is turned upside down.

As shown in FIG. 8, the foot cover 1a comprises a sole portion 2 and a side portion 30. The side portion 30 includes a first side portion 31 (side portion) and a second side portion (side portion/heel portion) 32. The first side portion 31 is made of stretchable fabric that covers the toe 11 and both sides 13 of the foot F. The second side portion 32 is made of stretchable fabric that covers the heel 13 of the foot F. The first side portion 31 and the second side portion 32 are joined to each other by a joining method other than sewing at both heel sides of the side portion 30 that correspond to the left and right sides of the heel 13 of the foot F. This forms a ring-shaped side portion 30 made of stretchable fabric.

A seam 6 is provided on both sides of the heel of the side portion 30, where the first side portion 31 and the second side portion 32 join. By joining the first side portion 31 and the second side portion 32 at the seam 6, a roughly rectangular opening portion 3b is formed in the approximate center of the side portion 30. In the foot cover 1a, the area of the side portion 30 that covers the instep of the foot F is larger than that of the foot cover 1 described above. In other words, the foot cover 1a is a "deep-fit" type foot cover in which the longitudinal length of the opening portion 3b is smaller than that of the foot cover 1.

Here, in the foot cover 1a, the seam 6 is provided in a position excluding the rear heel portion 32a so that there is no seam 6 in the rear heel portion 32a of the second side surface portion 32 corresponding to the rear end of the heel 12. In other words, the seam 6 is provided in a position excluding the rear heel portion 32a, which is a vertical linear region that runs down the center of the second side surface portion 32, dividing the second side surface portion 32 into left and right halves (approximately bisecting) when viewed from behind when worn. By providing the seam 6 in a position excluding the rear heel portion 32a, there is no seam 6 at the rear end of the heel 12, where pressure is likely to be felt, and this reduces any deterioration in comfort when wearing the foot cover 1. This reduces any deterioration in comfort when wearing the heel portion (second side surface portion 32) of the foot cover 1.

The seam 6 does not have to be located in the rear heel portion 32a. Therefore, as in this embodiment, the seam 6 may be located on both sides of the heel of the side portion 30, as long as it is located in a position other than the rear heel portion 32a, or the seam 6 may be located in a position other than both sides of the heel.

(Method for manufacturing foot covers)
The manufacturing method of the foot cover 1a includes a sole forming step of forming the sole 2, a side portion forming step of forming the side portion 30, and a joining step of seamlessly joining the sole 2 and the side portion 30. Of these steps, the sole forming step and the joining step are substantially the same as the manufacturing method of the foot cover 1 described above, and therefore will not be described here.

In the side portion forming process, stretchable fabric is cut according to the patterns of the first side portion 31 and the second side portion 32. The cut stretchable fabric for the first side portion 31 and the cut stretchable fabric for the second side portion 32 are then seamlessly joined. At this time, the first side portion 31 and the second side portion 32 are joined so that the seam 6 is located in a position excluding the rear heel portion 32a. This forms a substantially planar, annular side portion 30 with an opening that becomes the opening 3b, and the seam 6 is located in a position excluding the rear heel portion 32a. Then, in the joining process, the outer peripheries of the two substantially planar pieces of fabric that make up the sole portion 2 and the side portion 30 are seamlessly joined to produce the foot cover 1a.

(Effect of foot covers)
The foot cover 1a according to this embodiment includes a plantar portion 2 that covers the sole 10 of the foot F, and side portions 30 that cover the toes 11, heel 12, and both sides 13 of the foot from the toes 11 to the heel 12 of the foot F. The side portions 30 have a seam 6 at a position other than a rear heel portion 32a corresponding to the rear end of the heel 12, and are made of annular stretchable fabric in which the stretchable fabric of the first side portion 31 and the stretchable fabric of the second side portion 32 are joined at the seam 6 by a joining method other than sewing.

With the foot cover 1a, the side portion 30 is made of a circular stretch fabric joined at a position (seam 6) other than the rear heel portion 32a, which helps prevent a decrease in comfort and prevents the foot from slipping or coming off.

[Modification]
The examples described in the above embodiments can be modified as appropriate. For example, in the first and second embodiments, a joining method that combines ultrasonic welding and adhesive tape was described, but joining may be performed by any method other than sewing, such as the joining methods listed below.

(heat fusion)
The sole 2 and the side sections 3 may be joined by, for example, heat fusion. The outer peripheral portion 2a of the sole 2 and the outer peripheral portion 3a of the side sections 3 are overlapped and then heat is applied to the overlapping portion to fuse them together. This method allows for bonding without impairing the stretchability of the fabric at the joining portion.

(glue)
The sole portion 2 and the side portion 3 may be joined by, for example, an adhesive. The outer peripheral portion 2a of the sole portion 2 and the outer peripheral portion 3a of the side portion 3 are overlapped, and an adhesive such as a sticky polymer is applied to the overlapping portion, and they are joined by heat fusion. Alternatively, they may be joined by applying an adhesive that can be applied without heating.

(anti-slip)
In addition, although an example has been described in which adhesive tape is applied to the joint portion 5 from the inside of the foot cover 1 for reinforcement, adhesive tape having a higher coefficient of friction than the sole portion 2 may be applied to the joint portion 5 from the outside of the foot cover 1 to also provide an anti-slip function.

The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention.

REFERENCE SIGNS LIST 1 Foot cover 1a Foot cover 2 Sole 2a Outer periphery 2b Inner fabric 2c Outer fabric 3 Side 3a Outer periphery 3b Opening (opening)
4 Joint member 5 Joint portion 6 Seam 10 Sole 11 Toe 12 Heel 13 Both sides 30 Side portion 31 First side portion (side portion)
32 Second side part (side part/heel part)
32a Rear heel F Foot

Claims (13)

A plantar part covering the sole of the foot;
a side portion covering the toe, the heel, and both sides of the foot from the toe to the heel;
Equipped with
The side portion is made of a circular stretchable fabric having an opening that becomes the opening of the shoe,
The sole and the side portions are joined by a joining method other than sewing,
The foot cover is characterized in that the side portion is made of only one seamless piece of the annular stretchable fabric. The foot cover of claim 1, characterized in that the annular stretch fabric has a planar shape. The foot cover described in claim 2, characterized in that the sole portion and the side portion are joined so that the entire foot cover has a flat shape when viewed from the side. A foot cover according to any one of claims 1 to 3, characterized in that the sole portion includes an inner fabric that contacts the foot and an outer fabric that covers the inner fabric. The foot cover of claim 4, characterized in that the inner fabric and the outer fabric are made of different materials. A foot cover according to any one of claims 1 to 5, characterized in that the joint between the sole portion and the side portion is located on the sole side of the foot. The foot cover according to any one of claims 1 to 6, further comprising a joining member that seamlessly joins the outer periphery of the sole portion and the outer periphery of the side portion. The foot cover according to claim 7, characterized in that the sole portion and the side portion are joined by the joining member without overlapping each other. A foot cover according to any one of claims 1 to 8, characterized in that the stretchable fabric is made of free-cut fabric. a sole forming step of forming a sole that covers the sole of the foot;
a side portion forming step of forming side portions that cover the toe, heel, and both sides of the foot from the toe to the heel;
a joining step of joining the sole portion and the side portion by a joining method other than sewing,
A method for manufacturing foot covers, characterized in that in the side portion forming process, the stretchable fabric is cut to form a ring-shaped side portion consisting of only a single, flat, seamless piece of the stretchable fabric, having an opening that becomes the opening for the shoe. The method for manufacturing a foot cover described in claim 10, characterized in that, in the joining process, the sole portion and the side portion are joined with a strip-shaped joining member so that the sole portion and the side portion do not overlap each other. The method for manufacturing a foot cover described in claim 10, characterized in that, in the joining process, the sole portion and the side portion are joined by thermal fusion so that the outer periphery of the sole portion and the outer periphery of the side portion overlap each other. The method for manufacturing a foot cover described in claim 10, characterized in that, in the joining process, the sole portion and the side portion are joined with an adhesive so that the outer periphery of the sole portion and the outer periphery of the side portion overlap each other.