Foot Covers
The foot cover with elastic resin anti-slip dots and bands on the heel and sides addresses slipping and tightness issues, ensuring comfort and airflow for wide instep shoes.
Patent Information
- Application Number
- JP2020183416
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2020-11-02
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2040-11-02
AI Technical Summary
Existing foot covers for wide instep shoes, such as high heels or pumps, tend to slip off or tighten excessively, causing discomfort and restricting airflow, leading to sweating.
A foot cover with elastic knitted fabric and anti-slip portions made of elastic resin, featuring dots and bands on the heel, left, and right sides, and optionally the toe, to prevent slipping while allowing airflow and reducing tightness.
Prevents slipping without excessive tightness, maintains comfort, and allows air circulation, preventing sweating.
Smart Images

Figure 0007744660000001 
Figure 0007744660000002
Abstract
Description
[Technical Field]
[0001] The present invention relates to a foot cover, and more particularly to a foot cover that is suitable for use when wearing shoes with a wide instep, such as high heels or pumps. [Background technology]
[0002] When wearing shoes with a wide instep, such as high heels or pumps, foot covers that do not expose the shoe and make it look like you are wearing bare feet have been proposed and sold for fashion reasons, etc. However, these foot covers do not have an instep or ankle area, and only the toes, heels, and both sides of the foot come into contact with the foot, so they tend to come off or slip off the wearer's foot when walking.
[0003] Therefore, for example, Patent Document 1 proposes providing an anti-slip portion on the inner periphery of the opening of the foot cover. Also, Patent Document 2 proposes providing strip-shaped and spot-shaped anti-slip portions on the front part of the foot cover and a wide strip-shaped anti-slip portion on the rear part. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-56479 [Patent Document 2] Utility model registration No. 3224536 Summary of the Invention [Problem to be solved by the invention]
[0005] The technology proposed in Patent Document 1 is expected to help prevent foot covers from slipping off or slipping off while walking, but because the anti-slip band is continuously provided around the entire circumference of the foot cover's opening, it may tighten the instep more than necessary, causing discomfort to the wearer. The anti-slip band may also leave pressure marks on the instep of the wearer's foot or impede blood circulation. Furthermore, the anti-slip band may restrict airflow inside and outside the foot cover through the opening, creating a sealed environment inside the foot cover and potentially causing the foot to become sweaty.
[0006] On the other hand, according to the technology proposed in Patent Document 2, anti-slip parts are provided not around the entire circumference of the opening of the foot cover but at the front and rear parts, which is thought to prevent excessive tightness around the instep and stuffiness of the feet, but since anti-slip parts are not provided on either side of the foot, there is a risk of the foot cover slipping sideways.
[0007] The present invention has been made in consideration of such conventional problems, and its purpose is to provide a foot cover that can prevent the wearer from coming off or slipping off the foot when walking, without making the wearer feel any more tight or uncomfortable than necessary, and that allows air to circulate inside and outside through the opening of the foot cover, preventing the feet from getting sweaty. [Means for solving the problem]
[0008] The foot cover of the present invention, which achieves the above-mentioned object, has a sole portion, a toe portion, a heel portion, a left side portion, and a right side portion that cover the sole, toes, heel, left side, and right side of the wearer's foot, and has an opening on the upper surface, a cover main body portion knitted with an elastic knitted fabric, and an anti-slip portion made of elastic resin provided on the inside of the cover main body portion, wherein the anti-slip portion is provided on at least the heel portion, the left side portion, and the right side portion of the cover main body portion, and each of the anti-slip portions provided on each portion has a plurality of dot-like bodies.
[0009] In this specification, the terms "toe portion," "heel portion," "left foot portion," and "right foot portion" refer to different portions of the foot cover depending on whether the foot cover is unsewn (circular knit) or sewn. Specifically, when the foot cover is unsewn, as shown in Fig. 1, the "toe portion" refers to the portion forward of the gore line at the front end of the foot cover, and the "heel portion" refers to the portion rearward of the gore line at the rear end of the foot cover. The "left foot portion" and "right foot portion" refer to the left and right portions of the foot cover between the gore line at the front end and the gore line at the rear end. On the other hand, when the foot cover is sewn, as shown in Fig. 2, the "toe portion" refers to the portion forward of the end position of the curved outer edge of the front end of the foot cover, and the "heel portion" refers to the portion rearward of the end position of the curved outer edge of the rear end of the foot cover. The "left foot portion" and "right foot portion" refer to the left and right portions of the foot cover sandwiched between the toe portion and the heel portion.
[0010] In the foot cover having the above configuration, the anti-slip portion may also be provided on the toe portion on the inside of the cover body portion.
[0011] In the foot cover having the above-described configuration, the anti-slip portion on the heel portion may include a plurality of dots and a plurality of bands.
[0012] In the foot cover having the above-described configuration, the anti-slip portions on the left foot side and the right foot side may each include only a plurality of dots.
[0013] Here, at least some of the plurality of dot-like bodies provided on the left side and the right side of the foot may be provided at predetermined intervals along the periphery of the opening, and adjacent dot-like bodies may be provided at different distances from the periphery of the opening.
[0014] In the foot cover having the above-described configuration, the total area of the anti-slip portion in the heel portion may be larger than the total area of the anti-slip portion in other portions.
[0015] In the foot cover having the above-described structure, the cover body may be integrally knitted. [Effects of the Invention]
[0016] In the foot cover according to the present invention, anti-slip portions are provided on at least the heel portion, the left foot portion, and the right foot portion of the cover main body, and each of the anti-slip portions has a plurality of dots, which prevents the foot cover from coming off or slipping off the wearer's foot when walking, etc. Furthermore, the wearer does not feel any excessive tightness or discomfort, and air can circulate inside and outside through the opening of the foot cover, preventing the feet from getting sweaty. [Brief explanation of the drawings]
[0017] [Figure 1] 1 is a plan view showing a first embodiment of a foot cover according to the present invention. [Figure 2] FIG. 10 is a plan view showing a second embodiment of a foot cover according to the present invention. DETAILED DESCRIPTION OF THE INVENTION
[0018] The foot cover according to the present invention will be described in detail below with reference to the drawings, but the present invention is not limited to these embodiments. Furthermore, the terms "front-rear direction" and "left-right direction" in this specification refer to the front-rear direction and left-right direction shown in the drawings.
[0019] (First embodiment) Fig. 1 is a plan view showing one embodiment of a foot cover FC1 according to the present invention, which is a foot cover that is knitted (circular knitted) as a single piece without being sewn. In Fig. 1, the foot cover FC1 is shown upside down to make the anti-slip portion easier to see. The plan view of the foot cover FC1 shown in Fig. 1 is a plan view when no external force is applied.
[0020] The foot cover FC1 shown in Fig. 1 comprises a cover body 1a integrally knitted with a stretchable knitted fabric, and an anti-slip part 2a made of elastic resin provided on the inside of the cover body 1a. The cover body 1a and the anti-slip part 2a will be described below in order.
[0021] (Cover body part 1a) The cover main body 1a has a generally rectangular shape in plan view with curved front and rear edges, and has an opening 3a in the center of the upper surface. The cover main body 1a is knitted (circular knitted) as a single unit without being sewn, and has two symmetrical pairs of gore lines 11a, 11b and gore lines 12a, 12b formed on the front and rear sides. The opening 3a formed on the cover main body 1a is divided into a front portion 31 that is curved based on the ends of the gore lines 11a, 11b on the opening side, a rear portion 32 that is curved with a smaller curvature than the front portion 31 based on the ends of the gore lines 12a, 12b on the opening side, and a generally linear left portion 33 and right portion 34 that connect to both ends of the front portion 31 and the rear portion 32, respectively. The periphery of the front and rear portions 31, 32 of the opening 3a is provided with elastic portions 35a, 35b that are more stretchable than other portions. The size and shape of the opening 3a are not limited to these and may be determined appropriately taking into account the expected shape of the wearer's foot. Note that, because the cover body 1a is knitted from a stretchable knitted fabric, the shapes of the cover body 1a and the opening 3a can elastically deform to fit the shape of the wearer's foot.
[0022] The mesh of the cover body 1a is made of one or more fiber yarns, such as cotton yarn, polyester fiber, acetate fiber, nylon fiber, acrylic fiber, polyurethane fiber, or a blend of cotton and polyester fiber, and is a thin, integrally knitted fabric that provides stretchability. Alternatively, a covered elastic yarn or rubber yarn, in which a core of polyurethane yarn is covered with thin polyester fiber or nylon, may also be used. For example, the cover body 1a is made of a thin, stretchy knitted fabric, such as a blend of nylon and polyurethane, and can be produced using a conventional circular knitting machine.
[0023] (Anti-slip part 2a) The foot cover FC1 shown in FIG. 1 has a non-slip portion 2a made of elastic resin provided around the opening 3a on the inside of the cover main body 1a. Specifically, the non-slip portion 2a is formed on the heel portion 13a, left foot portion 14a, right foot portion 15a, and toe portion 16a of the cover main body 1a. The non-slip portions 2a provided on the left foot portion 14a, right foot portion 15a, and toe portion 16a only have a plurality of dots 21 made of elastic resin, while the non-slip portion 2a provided on the heel portion 13a has a plurality of dots 21 and a plurality of bands 22 made of elastic resin. In this specification, "dots 21" is a general term for dots 21a, 21b, and 21c of different sizes, and "bands 22" is a general term for bands 22a and 22b of different sizes.
[0024] (Left foot part 14a and right foot part 15a) The multiple dots 21 on the left foot portion 14a and the multiple dots 21 on the right foot portion 15a are arranged symmetrically about the center line L in the left-right direction. The multiple dots 21 on the left foot portion 14a and the right foot portion 15a are circular in plan view and are arranged at predetermined intervals along the periphery of the opening 3a so that adjacent dots 21 are spaced at different distances from the periphery of the opening 3a. In other words, the multiple dots 21 are arranged at the apexes of a triangular wave. This arrangement of the dots 21 provides a non-slip effect when the foot cover FC1 is worn on the wearer's foot, and allows air to circulate between the inside and outside of the foot cover FC1 through the gaps between the dots 21 from the opening 3a. The dots 21 are composed of two types of dots 21a and 21b with different sizes (diameters), and are arranged so that at least the larger dots 21a are not adjacent to each other.
[0025] The shape of the dots 21 is not limited to a circle, but may be any shape such as a polygon, heart, teardrop, fruit, etc. The size of the dots 21 is not particularly limited as long as the effect of the present invention is achieved, but usually, the area of the dots 21 in a plan view is 3 mm 2 More than 20mm 2The following range is preferred. There are no particular limitations on the thickness of the dots 21 as long as the effects of the present invention are achieved, but a range of 0.1 mm to 1 mm is usually preferred. The spacing between adjacent dots 21 in the circumferential direction of the opening 3a is preferably in the range of 1 mm to 10 mm.
[0026] (Toe part 16a) The multiple dots 21 on the toe portion 16a are also arranged symmetrically on the left and right sides with respect to the center line L. Similar to the left and right foot portions 14a and 15a, the multiple dots 21 on the toe portion 16a are circular in plan view and are arranged at regular intervals along the periphery of the opening 3a with adjacent dots 21 spaced at different distances from the periphery of the opening 3a. In other words, the multiple dots 21 are arranged at the vertices of a triangular wave. The dots 21 are composed of two types of dots 21a and 21b, each with a different size (diameter).
[0027] The shape, size (area) and spacing of the dots 21 on the toe 16a are the same as those of the dots 21 on the left foot part 14a and the right foot part 15a.
[0028] (Heel part 13a) Unlike the left foot part 14a, right foot part 15a, and toe part 16a, the anti-slip part 2a provided on the heel part 13a has a plurality of dots 21 made of elastic resin as well as a plurality of bands 22. The anti-slip parts 2a on the heel part 13a are arranged symmetrically on the left and right sides with respect to the center line L. In order to prevent the foot cover FC1 from coming off or slipping off the foot, it is important that the heel part 13a of the foot cover FC1 is firmly attached to the foot, and since the bands 22 usually have a larger contact area with the wearer's foot than the dots 21 and therefore have a higher anti-slip effect, the anti-slip parts of the dots 21 and bands 22 are provided on the heel part 13a.
[0029] Heel portion 13a is provided with seven bands 22. Specifically, on both sides of band 22a, which is provided in the center in the left-right direction and on the front side in the front-to-back direction (toward shoe opening 3a), three bands 22b are arranged symmetrically in a stepped pattern at predetermined intervals in the front-to-back direction, offset outward in the left-to-right direction so that some of the bands overlap.
[0030] The shape of the strip 22 is not limited to a rectangular shape, but may be any shape extending in the longitudinal direction. The size of the strip 22 is not particularly limited as long as it can achieve the effects of the present invention. However, the area of the strip 22 in a plan view is usually 40 mm. 2 More than 110mm 2 The thickness of the strip 22 is preferably in the following range: The thickness of the strip 22 is not particularly limited as long as it can achieve the effects of the present invention, but is usually preferably in the range of 0.1 mm to 1.5 mm.
[0031] Dots 21c, each having a smaller diameter than dots 21a and 21b, are uniformly dispersed in the area of heel portion 13a other than bands 22. The shapes, sizes (areas), and spacings of dots 21c are the same as those of dots 21a and 21b described above.
[0032] As mentioned above, in order to prevent the foot cover FC1 from coming off or shifting from the foot, it is important that the heel portion 13a of the foot cover FC1 is firmly fixed to the foot, so the total area of the dot-like bodies 21 and band-like bodies 22 on the heel portion 13a is set larger than the total area of the dot-like bodies 21 on each of the left foot portion 14a, right foot portion 15a, and toe portion 16a.
[0033] Examples of materials for the elastic resin that makes up the anti-slip portion 2a include silicone resin and polyolefin resins such as polyethylene and polypropylene, but among these, silicone resin is preferably used from the standpoint of adhesion to the cover body and anti-slip properties.
[0034] When the non-slip portion 2a is made of an adhesive resin such as silicone resin, it can be formed on the cover body 1a by printing with a screen printer, or by printing with a relief or intaglio printer. It is preferable that the edges of the non-slip portion 2a are beveled, as this reduces the likelihood of peeling or damage from those points.
[0035] In the above-described embodiment, the anti-slip portion 2a is formed on the toe portion 16a, but in recent years, shoes such as high heels and pumps have begun to have larger openings 3a in the front-to-back direction from the standpoint of design, etc., and in foot covers FC1 compatible with such shoes, the width of the toe portion 16a in the front-to-back and left-to-right directions is set narrower so that the foot cover FC is not exposed from the shoe, so the foot cover of the present invention may be in a form that does not have an anti-slip portion 2a on the toe portion 16a.
[0036] (Second embodiment) Fig. 2(a) shows a plan view of the foot top portion 10a (toe portion, left foot portion, right foot portion, and heel portion) of the cover main body 1b, and Fig. 2(b) shows a plan view of the sole portion 10b of the cover main body 1b. The foot cover FC2 according to the present invention shown in Fig. 2 is made by knitting the foot top portion 10a and the sole portion 10b of the cover main body 1b separately, then overlapping them and sewing the outer edges. As in Fig. 1, Fig. 2(a) shows the foot top portion 10a upside down to make the anti-slip portion 2b easier to see.
[0037] (Cover body part 1b) The cover main body 1b of the foot cover FC2 shown in Fig. 2 differs from the foot cover FC1 according to the first embodiment shown in Fig. 1 in that the cover main body 1b in Fig. 2 is formed by knitting the foot upper portion 10a and the sole portion 10b separately and then sewing them together, and therefore the cover main body 1b in Fig. 2 does not have a gore line. Therefore, the toe portion 16b of the cover main body 1b refers to the portion forward in the front-to-rear direction from the end position of the outer curved edge of the tip of the foot cover FC2, the heel portion 13b refers to the portion rearward in the front-to-rear direction from the end position of the outer curved edge of the rear end of the foot cover FC2, and the left foot portion 14b and right foot portion 15b refer to the right and left portions of the foot upper portion 10a sandwiched in the front-to-rear direction between the toe portion 16b and the heel portion 13b.
[0038] The foot front portion 10a and the sole portion 10b of the cover main body portion 1b have the same external shape in a plan view, and have a substantially semicircular front edge 101, a substantially semicircular rear edge 102 with a larger curvature than the front edge 101, and left and right edges 103 and 104 connected to the left and right ends of the front edge 101 and the rear edge 102, respectively, with the central portions in the front-to-back direction slightly curved inward in the left-to-right direction, and are linearly symmetrical about the left-to-right center line L. An opening 3b is formed in the approximate center of the upper portion 10a. The opening 3b is divided into arc-shaped front and rear portions 36 and 37, which are concentric with the front and rear edges 101 and 102 of the cover body 1b and have smaller radii than the front and rear edges 101 and 102 of the cover body 1b, and into approximately linear right and left portions 38 and 39 that connect to the left and right ends of the front and rear portions 36 and 37, respectively. The size and shape of the opening 3b are not limited to these, and may be determined appropriately taking into account the expected shape of the wearer's foot. Since the cover body 1b is knitted from a stretchable knitted fabric, the shapes of the cover body 1b and the opening 3b can be elastically deformed to fit the shape of the wearer's foot.
[0039] The mesh of the cover body 1b is exemplified here as being the same as in the first embodiment. The foot top portion 10a and the sole portion 10b of the cover body 1b may be knitted with different meshes.
[0040] Furthermore, in addition to separately knitting the foot upper portion 10a and the sole portion 10b, the cover main body 1b may also be formed by separately knitting the toe portion 16b, left foot portion 14b, right foot portion 15b, and heel portion 13b that make up the foot upper portion 10a and sewing them together to form the cover main body 1b. When the cover main body 1b is made by separately knitting and sewing desired portions, stitch lines are inevitably formed. These stitch lines may cause the sewn foot cover FC2 to be less comfortable to wear than a foot cover FC1 that is knitted (circular knitted) as a single piece without being sewn.
[0041] (Anti-slip part) The anti-slip portion 2b of the foot cover FC2 shown in Figure 2 is basically the same as the anti-slip portion 2a of the foot cover FC1 of the first embodiment shown in Figure 1, but since the area of the cover main body portion 1b around the opening 3b is narrower than that of the cover main body portion 1a in Figure 1, the number of dot-like bodies 21 and band-like bodies 22 formed is set to be fewer than that of the cover main body portion 1a in Figure 1.
[0042] When the wearer puts on the foot covers FC1 and FC2 described above, most of the instep and ankle of the wearer are exposed from the foot covers FC1 and FC2. As a result, when the wearer wears shoes with a wide instep, such as high heels or pumps, the foot covers FC1 and FC2 are not exposed from the shoes, making it look like the wearer is wearing shoes on bare feet, which adds to the fashion sense. [Industrial Applicability]
[0043] The foot covers according to the present invention are effective in preventing the foot covers from coming off or slipping off the wearer's feet when walking, etc. They also do not cause the wearer to feel excessively tight or uncomfortable, and allow air to circulate between the inside and outside of the foot covers through the opening, preventing the feet from getting sweaty, which is useful. [Explanation of symbols]
[0044] 1a, 1b Cover body 2a, 2b Anti-slip part 3a, 3b opening 10a Foot surface 10b Sole of the foot 11a, 11b Gore Line 12a, 12b Gore Line 13a,13b Heel 14a, 14b Left side of foot 15a, 15b Right side of foot 16a,16b Toe part 21 Punctate 21a,21b,21c Point-like body 22 Band FC1,FC2 foot covers
Claims
1. a cover body part which has a sole part, a toe part, a heel part, a left foot part, and a right foot part, and which covers the sole, toe, heel, left foot part, and right foot part of the wearer, and which has an opening on the upper surface and is knitted with a stretchable knitted fabric; a non-slip portion made of elastic resin provided on the inside of the cover body portion, the anti-slip portion is provided at a position away from the periphery of the shoe opening at least on the heel portion, the left foot side, and the right foot side of the cover main body portion; Each of the anti-slip portions provided on each of the portions has a plurality of dots, The total area of the anti-slip portion in the heel portion is larger than the total area of the anti-slip portion in other portions. A foot cover characterized by:
2. 2. The foot cover according to claim 1, wherein the anti-slip portion is also provided on the inner toe portion of the cover body.
3. 3. The foot cover according to claim 1, wherein the anti-slip portion at the heel portion comprises a plurality of dots and a plurality of bands.
4. 4. The foot cover according to claim 1, wherein the anti-slip portions on the left foot side and the right foot side each comprise only a plurality of dots.
5. 5. The foot cover according to claim 4, wherein at least some of the plurality of dots provided on the left and right foot sides are provided at predetermined intervals along the periphery of the opening, and adjacent dots are provided at different distances from the periphery of the opening.
6. The foot cover according to any one of claims 1 to 5, wherein the cover body is integrally knitted.
Citation Information
Patent Citations
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