JP2021031822A - Foot cover - Google Patents

Foot cover Download PDF

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JP2021031822A
JP2021031822A JP2019157300A JP2019157300A JP2021031822A JP 2021031822 A JP2021031822 A JP 2021031822A JP 2019157300 A JP2019157300 A JP 2019157300A JP 2019157300 A JP2019157300 A JP 2019157300A JP 2021031822 A JP2021031822 A JP 2021031822A
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foot
toe
heel
foot cover
sole
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JP2019157300A
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JP7302861B2 (en
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原　進
Susumu Hara
進 原
直視 濱崎
Naoshi Hamazaki
直視 濱崎
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Okamoto Corp
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Okamoto Corp
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Priority to JP2019157300A priority Critical patent/JP7302861B2/en
Priority to PCT/JP2020/027181 priority patent/WO2021039156A1/en
Priority to TW109123992A priority patent/TW202112260A/en
Priority to TW109209066U priority patent/TWM605025U/en
Priority to CN202021693510.9U priority patent/CN212520815U/en
Priority to CN202010815682.7A priority patent/CN112438442A/en
Publication of JP2021031822A publication Critical patent/JP2021031822A/en
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    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
    • A41B11/00—Hosiery; Panti-hose
    • A41B11/003—Hosiery with intermediate sections of different elasticity
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
    • A41B11/00—Hosiery; Panti-hose

Abstract

To provide a foot cover which reduces accidental detachment during walking while reducing tightness.SOLUTION: A foot cover (1) of an aspect of the present invention comprises a high stretch part (5) of which one end (5a) is connected to the peripheral part of an opening (3a), is inclined in the approaching direction to the side closer to a tiptoe part (31), and is extended to a sole part (21) from the one end (5a), and the high stretch part (5) pulls a heel part (32) to the side closer to the tiptoe part (31) at bending of the metatarsophalangeal joint of the foot (F).SELECTED DRAWING: Figure 1

Description

本発明は、足に着用するフットカバーに関し、より詳細には、歩行などの動作によるずれまたは脱げを軽減するフットカバーに関する。 The present invention relates to a foot cover worn on a foot, and more particularly to a foot cover that reduces displacement or detachment due to movements such as walking.

近年、歩行時の脱げを軽減するフットカバーが数多く市場に流通している。これらのフットカバーの多くは、履き口や踵部に滑り止めまたは生地を貼り付けることにより、摩擦抵抗を高めたりストッパー機能を付与している。または、部分的に伸縮性を低くした領域をフットカバーに形成することによりホールド感を高めている。 In recent years, many foot covers that reduce the amount of foot cover that can be taken off when walking are on the market. Many of these foot covers have a non-slip or fabric attached to the cuffs and heels to increase frictional resistance and provide a stopper function. Alternatively, the hold feeling is enhanced by forming a partially reduced elasticity region on the foot cover.

フットカバーの歩行時の脱げを軽減するものとして、例えば特許文献１のように、爪先部と足底部とを接合するテープテープラインにより爪先部を上方へ引き上げるものがある。また、特許文献２のように、履き口の周縁部分に沿って伸縮性細幅生地を設けたものがある。さらに、特許文献３のように、踵部の周辺（足底からアキレス腱部に至る部分）に締付力の高い締付部を設けたものがある。 As a method of reducing the detachment of the foot cover during walking, for example, as in Patent Document 1, the toe portion is pulled upward by a tape tape line that joins the toe portion and the sole portion. Further, as in Patent Document 2, there is a case in which an elastic narrow cloth is provided along a peripheral portion of a cuff. Further, as in Patent Document 3, there is a case in which a tightening portion having a high tightening force is provided around the heel portion (a portion extending from the sole of the foot to the Achilles tendon portion).

特開２０１９−３１７５２号公報Japanese Unexamined Patent Publication No. 2019-31752 特開２０１９−３５１５９号公報Japanese Unexamined Patent Publication No. 2019-35159 特許第５１９７９０５号公報Japanese Patent No. 5197905

歩行の際、足の爪先側に位置する中足趾節関節の屈曲（爪先側のみが接地し踵側が浮いた状態）時に、フットカバーと靴との間に摩擦が生じることにより踵部のずれが生じる。歩行を繰り返すことにより踵部のずれが大きくなることが、フットカバーの脱げに繋がる原因として考えられる。よって、フットカバーの脱げを効果的に軽減するためには、特に中足趾節関節の屈曲時に、足と踵部との密着度（着用圧）を向上させることが重要となる。 When walking, when the metatarsal joint located on the toe side of the foot bends (only the toe side touches the ground and the heel side floats), friction occurs between the foot cover and the shoe, causing the heel to shift. Occurs. It is considered that the increase in the displacement of the heel part due to repeated walking is the cause of the foot cover coming off. Therefore, in order to effectively reduce the detachment of the foot cover, it is important to improve the degree of adhesion (wearing pressure) between the foot and the heel, especially when the metatarsal toe joint is flexed.

このようにフットカバーの脱げの原因の多くは踵部のずれに起因していると考えられる。しかしながら、引用文献１のような爪先部を上方へ引き上げる構成では、踵部の脱げ軽減の効果を十分に得られない。また、中足趾節関節の非屈曲（爪先側および踵側が接地した状態）時においても爪先部の引き上げ作用が働くため、足への締付作用が常に働く。 In this way, it is considered that most of the causes of the foot cover coming off are due to the displacement of the heel part. However, in the configuration in which the toe portion is pulled upward as in Cited Document 1, the effect of reducing the detachment of the heel portion cannot be sufficiently obtained. In addition, even when the metatarsal toe joint is not flexed (the toe side and the heel side are in contact with the ground), the toe tip is pulled up, so that the foot is always tightened.

また、特許文献２のような履き口の周縁部分に沿って伸縮性細幅生地を設けた構成では、履き口は異物感または締め付けを特に感じやすい部分であるため、着用感への影響が大きい。また、フットカバーと靴との密着により伸縮性細幅生地の厚み分の痕が足に残り、痒みまたは肌荒れの原因になり得る。 Further, in the configuration in which the elastic narrow fabric is provided along the peripheral edge portion of the cuff as in Patent Document 2, the cuff is a portion where a foreign body sensation or tightening is particularly easily felt, and thus the wearing feeling is greatly affected. .. In addition, due to the close contact between the foot cover and the shoes, marks corresponding to the thickness of the stretchable narrow fabric remain on the foot, which may cause itching or rough skin.

また、引用文献３のような踵部の周辺に締付部を設ける構成では、踵部のずれは軽減されるものの、足への締付作用が常に働く。そのため、中足趾節関節の非屈曲時においても踵が常にホールドされた状態にある。それゆえ、足への圧迫感によるストレスまたは密着状態ゆえの夏場の蒸れや肌荒れなどに繋がる可能性がある。 Further, in the configuration in which the tightening portion is provided around the heel portion as in Cited Document 3, the displacement of the heel portion is reduced, but the tightening action on the foot always works. Therefore, the heel is always held even when the metatarsal joint is not flexed. Therefore, it may lead to stress due to the feeling of pressure on the feet or stuffiness or rough skin in the summer due to the close contact state.

本発明の一態様は、上記の問題に鑑み、中足趾節関節の非屈曲（伸展）時の締付感を抑えつつ歩行などの動作によるずれまたは脱げを軽減可能なフットカバーを提供することを目的とする。 In view of the above problems, one aspect of the present invention is to provide a foot cover capable of reducing slippage or detachment due to movements such as walking while suppressing a feeling of tightening when the metatarsal toe joint is not flexed (extended). With the goal.

上記の課題を解決するために、本発明の一態様に係るフットカバーは、足の足裏を覆う足底部と、爪先部および踵部を含み、履き口となる開口部が形成された伸縮性を有する側面部と、一端が前記開口部の周縁部分に位置し、前記爪先部側に近づく方向に傾斜して前記一端から前記足底部側へ延伸する、前記側面部より伸縮性が低い強伸縮部とを備え、前記強伸縮部は、前記側面部の幅方向の両側にそれぞれ配置され、前記足の中足趾節関節の屈曲時に前記踵部を前記爪先部側へ引張することを特徴とする。 In order to solve the above problems, the foot cover according to one aspect of the present invention includes a sole portion covering the sole of the foot, a toe portion and an ankle portion, and is elastic so as to form an opening serving as a foot opening. And one end located at the peripheral edge of the opening, which is inclined in a direction approaching the toe side and extends from the one end to the sole side, which is less elastic than the side surface. The strong expansion / contraction portion is provided on both sides in the width direction of the side surface portion, and the heel portion is pulled toward the toe portion side when the metatarsophalangeal joint of the foot is flexed. To do.

本発明の一態様によれば、中足趾節関節の非屈曲時の締付感を抑えつつ歩行などの動作によるずれまたは脱げを軽減可能なフットカバーを提供することができる。 According to one aspect of the present invention, it is possible to provide a foot cover capable of reducing slippage or detachment due to movements such as walking while suppressing a feeling of tightening when the metatarsal toe joint is not flexed.

本発明の実施形態１に係るフットカバーを足に着用した状態を示す斜視図である。It is a perspective view which shows the state which the foot cover which concerns on Embodiment 1 of this invention is worn on a foot. 上記フットカバーを足に着用した状態を示す足の内側側面図である。It is a medial side view of the foot which shows the state which the said foot cover is worn on the foot. 上記フットカバーを構成する生地パターンを示す分解図である。It is an exploded view which shows the fabric pattern which comprises the said foot cover. 上記足の中足趾節関節の屈曲時の骨格を示す側面である。It is a side surface showing the skeleton at the time of flexion of the metatarsal joint of the foot. 上記足を裏側から見た場合の足の骨格を示す下面図である。It is a bottom view which shows the skeleton of the foot when the said foot is seen from the back side. 上記フットカバーが備える強伸縮部の位置を説明するための足の内側側面図である。It is a medial side view of the foot for demonstrating the position of the strong expansion and contraction part provided with the foot cover. 歩行の際の上記足の状態を示す足の内側側面図である。It is a medial side view of the foot which shows the state of the said foot at the time of walking. 上記中足趾節関節の非屈曲（伸展）時のフットカバーの状態を示す足の内側側面図である。It is a medial side view of the foot which shows the state of the foot cover at the time of non-flexion (extension) of the metatarsal toe joint. 上記中足趾節関節の屈曲時のフットカバーの状態を示す足の内側側面図である。It is a medial side view of the foot which shows the state of the foot cover at the time of flexion of the metatarsal toe joint. 上記伸縮部の変形例を説明するための足の内側側面図である。It is a medial side view of the foot for demonstrating the deformation example of the said expansion part. 本発明の実施形態２に係るフットカバーを足に着用した状態を示す斜視図である。It is a perspective view which shows the state which the foot cover which concerns on Embodiment 2 of this invention is worn on a foot.

〔実施形態１〕
以下、本発明の一実施形態について、図１から図１０を参照して説明する。本実施形態では、着用感の向上のため左右の足の形状に合わせた左右非対称形状のフットカバーに本発明を適用した一例を説明する。 [Embodiment 1]
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 10. In the present embodiment, an example in which the present invention is applied to a foot cover having a left-right asymmetric shape that matches the shape of the left and right feet in order to improve the wearing feeling will be described.

（フットカバーの全体構成）
図１は、本実施形態に係るフットカバー１を足（右足）Ｆに着用した状態を示す斜視図である。図１に示すように、フットカバー１は、足Ｆの足裏を覆う足底部２と、足Ｆの側周面を覆う側面部３と、フットカバー１のずれまたは脱げを軽減するための滑り止め部４および強伸縮部５とを備える。 (Overall configuration of foot cover)
FIG. 1 is a perspective view showing a state in which the foot cover 1 according to the present embodiment is worn on the foot (right foot) F. As shown in FIG. 1, the foot cover 1 slides between the sole 2 covering the sole of the foot F, the side surface 3 covering the lateral peripheral surface of the foot F, and the foot cover 1 to reduce slippage or detachment. A stop portion 4 and a strong expansion / contraction portion 5 are provided.

フットカバー１は、足Ｆの足裏および側周面の一部を被覆するレッグウェアである。フットカバー１は、例えば爪先の一部または踵の一部を露出させるような形態であってもよい。また、フットカバー１は、例えば５本指タイプまたは足袋タイプなどの指袋付きの形態であってもよい。 The foot cover 1 is leg wear that covers a part of the sole and the side peripheral surface of the foot F. The foot cover 1 may be in a form that exposes, for example, a part of the toe or a part of the heel. Further, the foot cover 1 may have a form with a finger bag such as a five-finger type or a tabi type.

側面部３は、爪先部３１、踵部３２、および爪先部３１から踵部３２にわたる側辺部３３を含む。側面部３はその略中央部分に、足Ｆを出し入れするための履き口（開口部）３ａが、略楕円形状に形成される。履き口３ａは、足Ｆの甲および足首が露出するように大きく開口して形成される。これにより、靴を履いたときに、フットカバー１全体が靴の中に隠れるようになっている。 The side surface portion 3 includes a toe portion 31, a heel portion 32, and a side portion 33 extending from the toe portion 31 to the heel portion 32. A cuff (opening) 3a for putting in and out the foot F is formed in a substantially elliptical shape in the substantially central portion of the side surface portion 3. The cuff 3a is formed with a large opening so that the instep and ankle of the foot F are exposed. As a result, when the shoes are put on, the entire foot cover 1 is hidden in the shoes.

本実施形態では、フットカバー１は、編み機により編成した、足底部２を構成する生地と側面部３を構成する生地とが縫着されたものである（生地タイプ）。具体的には、足底部２と側面部３とは、足底部２を構成する生地の外周部分と側面部３を構成する生地の外周部分とが縫製によって接合される。ただし、足底部２と側面部３とを靴下用丸編機により一連に編成することも可能である（ニットタイプ）。 In the present embodiment, the foot cover 1 is made by sewing a fabric constituting the sole portion 2 and a fabric constituting the side surface portion 3 knitted by a knitting machine (fabric type). Specifically, the sole portion 2 and the side surface portion 3 are joined by sewing to the outer peripheral portion of the fabric forming the sole portion 2 and the outer peripheral portion of the fabric forming the side surface portion 3. However, it is also possible to knit the sole portion 2 and the side surface portion 3 in a series by a sock circular knitting machine (knit type).

生地タイプの場合、足底部２と側面部３とは、いずれも伸縮性生地からなることが好ましい。足底部２を構成する生地の摩擦抵抗が低い場合、足底部２と足Ｆの足裏との滑り、および足底部２と靴底との滑りが着用時に生じ、フットカバー１の脱げおよび履き心地の低下に繋がる。そのため、適度に摩擦抵抗が高く肌に優しい綿混などの天然繊維を混合した紡績糸が足底部２を構成する生地の素材として好適であるがこれに限定されない。 In the case of the fabric type, it is preferable that both the sole portion 2 and the side surface portion 3 are made of elastic fabric. When the frictional resistance of the fabric constituting the sole 2 is low, slippage between the sole 2 and the sole of the foot F and slippage between the sole 2 and the sole of the foot occur during wearing, and the foot cover 1 can be removed and comfortable to wear. It leads to a decrease in. Therefore, a spun yarn mixed with a natural fiber such as a cotton blend having moderately high frictional resistance and being gentle on the skin is suitable as a material for the fabric constituting the sole portion 2, but is not limited thereto.

また、側面部３を構成する生地の素材についても限定されないが、特に裁断した端面がほつれない切りっぱなしの生地（フリーカット生地）を用いることが好ましい。フリーカット生地を用いることにより、履き口３ａの周縁部分にほつれ防止のための処理を施す必要性がなくなる。そのため、例えば、ほつれ防止のための生地を履き口３ａの周縁部分に貼付した場合の履き心地の低下などを回避することができる。 Further, the material of the dough constituting the side surface portion 3 is not limited, but it is particularly preferable to use an uncut dough (free-cut dough) in which the cut end face does not fray. By using the free-cut fabric, it is not necessary to apply a treatment for preventing fraying to the peripheral portion of the cuff 3a. Therefore, for example, it is possible to avoid a decrease in comfort when the fabric for preventing fraying is attached to the peripheral portion of the opening 3a.

側面部３は、１枚の生地を円形状または楕円形状などに裁断し、履き口３ａとして開口部を形成した環状をなす形状としてもよい。また、側面部３は、例えば爪先部３１側と踵部３２側とで素材を変えるなど複数の生地を接合させて環状をなす形状としてもよい。 The side surface portion 3 may have an annular shape in which one piece of fabric is cut into a circular shape or an elliptical shape to form an opening as a cuff 3a. Further, the side surface portion 3 may have a shape in which a plurality of fabrics are joined to form an annular shape, for example, by changing the material between the toe portion 31 side and the heel portion 32 side.

なお、足底部２と側面部３とは縫着によって接合してもよいが、テープによる接着、熱融着などによって足底部２と側面部３とを接合してもよい。 The sole 2 and the side surface 3 may be joined by sewing, but the sole 2 and the side surface 3 may be joined by adhesion with tape, heat fusion, or the like.

一方、生地タイプの場合、足底部２と側面部３とは、靴下用丸編機によって連続的に編成される。足底部２と側面部３とは、例えば、針数１４４本、シングルシリンダー靴下用丸編機によって、３２番単糸（綿５０％アクリル５０％紡績糸）を用いて連続的に編成される。 On the other hand, in the case of the fabric type, the sole portion 2 and the side surface portion 3 are continuously knitted by a sock circular knitting machine. The sole portion 2 and the side surface portion 3 are continuously knitted by, for example, a circular knitting machine for single cylinder socks with 144 needles using No. 32 single yarn (50% cotton, 50% acrylic spun yarn).

滑り止め部４は、側面部３を構成する生地よりも伸縮性が低く、かつ摩擦抵抗が大きい(肌との摩擦係数が高い）帯形状（面形状）の滑り止め部材である。滑り止め部４は、踵部３２の内面の、踝（外果、内果）よりも下側で、かつ背面側の領域に設けられる。滑り止め部４は、足Ｆの踵に当接することによって、足Ｆに対するフットカバー１のずれまたは脱げを防止する。 The non-slip portion 4 is a band-shaped (surface-shaped) non-slip member having a lower elasticity and a higher frictional resistance (higher friction coefficient with the skin) than the fabric constituting the side surface portion 3. The non-slip portion 4 is provided on the inner surface of the heel portion 32 in a region below the ankle (outer malleolus, inner malleolus) and on the back side. The non-slip portion 4 abuts on the heel of the foot F to prevent the foot cover 1 from slipping or coming off with respect to the foot F.

滑り止め部４の素材は、側面部３を構成する生地よりも摩擦抵抗が大きいものであれば特に限定されない。例えば、肌との摩擦抵抗が比較的大きな樹脂（天然ゴムなどの天然樹脂、シリコンゴム、ウレタンゴムなどの合成樹脂）のほか、様々な素材を用いることができる。 The material of the non-slip portion 4 is not particularly limited as long as it has a higher frictional resistance than the fabric constituting the side surface portion 3. For example, various materials can be used in addition to resins having a relatively large frictional resistance with the skin (natural resins such as natural rubber, synthetic resins such as silicone rubber and urethane rubber).

強伸縮部５は、側面部３を構成する生地よりも伸縮性が低い領域または部材である。強伸縮部５は、側面部３を構成する生地よりも伸びにくく、収縮する力が強くなっている。強伸縮部５は、側面部３の幅方向の両側（２つの側辺部３３）にそれぞれに配置される。 The strong stretchable portion 5 is a region or member having a lower stretchability than the fabric constituting the side surface portion 3. The strongly stretchable portion 5 is harder to stretch than the fabric constituting the side surface portion 3, and has a stronger contraction force. The strong expansion / contraction portions 5 are arranged on both sides (two side side portions 33) of the side surface portion 3 in the width direction.

この強伸縮部５は、歩行などの動作の際、足Ｆの爪先側に位置する中足趾節関節の屈曲（爪先側のみが接地し踵側が浮いた状態）時に踵部３２を爪先部３１側へ引張するように作用する。そのため、踵部３２が肌に密着し、歩行時のフットカバー１のずれまたは脱げが軽減される。 This strong expansion / contraction portion 5 makes the heel portion 32 the toe portion 31 when the metatarsophalangeal joint located on the toe side of the foot F is flexed (a state in which only the toe side is in contact with the ground and the heel side is floating) during movements such as walking. It acts to pull to the side. Therefore, the heel portion 32 is in close contact with the skin, and the slippage or detachment of the foot cover 1 during walking is reduced.

また、中足趾節関節の屈曲時に踵部３２が爪先部３１側へ引張されることにより、踵部３２の内面に設けられた滑り止め部４が肌に圧着する。そのため、滑り止め部４による滑り止め効果を高め、歩行時のフットカバー１のずれまたは脱げがより効果的に軽減される。 Further, when the metatarsal joint is flexed, the heel portion 32 is pulled toward the toe portion 31 side, so that the non-slip portion 4 provided on the inner surface of the heel portion 32 is pressed against the skin. Therefore, the anti-slip effect of the anti-slip portion 4 is enhanced, and the slippage or detachment of the foot cover 1 during walking is more effectively reduced.

（強伸縮部の構成）
図２は、フットカバー１を足Ｆに着用した状態を示す足（右足）Ｆの内側側面図である。図２に示すように、強伸縮部５は、一端５ａが開口部３ａの周縁部分に接続される。また、強伸縮部５は、一端５ａとは反対側の他端５ｂが足底部２に接続される。強伸縮部５は、一端５ａを始点として、爪先部３１側へ近づく方向傾斜して一端５ａから足底部２側へ直線的に延伸して足底部２へ至る。 (Structure of strong expansion and contraction part)
FIG. 2 is a medial side view of the foot (right foot) F showing a state in which the foot cover 1 is worn on the foot F. As shown in FIG. 2, one end 5a of the strong expansion / contraction portion 5 is connected to the peripheral edge portion of the opening 3a. Further, in the strong expansion / contraction portion 5, the other end 5b on the opposite side of one end 5a is connected to the sole portion 2. The strong expansion / contraction portion 5 starts from one end 5a, is inclined in a direction approaching the toe portion 31 side, and extends linearly from one end 5a to the sole portion 2 side to reach the sole portion 2.

図３は、フットカバー１を構成する生地パターンを示す分解図である。図３の３０１は足底部２の生地パターン（内面）を示す。また、図３の３０２は側面部３のうちの爪先部３１を含む第１伸縮性生地３Ａの生地パターン（内面）を示し、図３の３０３は側面部３のうちの踵３２を含む第２伸縮性生地３Ｂの生地パターン（内側）を示す。 FIG. 3 is an exploded view showing a fabric pattern constituting the foot cover 1. 301 in FIG. 3 shows the fabric pattern (inner surface) of the sole 2. Further, 302 in FIG. 3 shows the fabric pattern (inner surface) of the first elastic fabric 3A including the toe portion 31 in the side surface portion 3, and 303 in FIG. 3 is the second including the heel 32 in the side surface portion 3. The fabric pattern (inside) of the elastic fabric 3B is shown.

図３に示すように、側面部３は、爪先部３１を含む第１伸縮性生地３Ａと、踵部３２を含む第２伸縮性生地３Ｂとを有する。これらの第１伸縮性生地３Ａと第２伸縮性生地３Ｂは、互いの両端部分を重ね合わせた接合領域Ｂにおいて接合される。フットカバー１では、直線的な帯形状である２つの接合領域Ｂが、強伸縮部５として作用する。 As shown in FIG. 3, the side surface portion 3 has a first elastic fabric 3A including a toe portion 31 and a second elastic fabric 3B including a heel portion 32. These first elastic fabrics 3A and second elastic fabrics 3B are joined in a joining region B in which both end portions are overlapped with each other. In the foot cover 1, the two joint regions B having a linear band shape act as the strong expansion / contraction portion 5.

このような強伸縮部５を形成する方法は特に限定されないが、例えば以下のようにして形成可能である。例えば、接合領域Ｂにおいて重ね合わせる幅だけ短くなることを予め想定して大きめにサイズ設計した側面部３を構成する環状の伸縮性生地を作製し、強伸縮部５を設ける位置で斜めに裁断する。これにより、第１伸縮性生地３Ａと第２伸縮性生地３Ｂとが得られる。なお、この縮性生地を裁断する際の位置および角度を変更することよって、最終的に側面部３に設けられる強伸縮部５の位置および傾斜角度を調整することができる。 The method for forming such a strong elastic portion 5 is not particularly limited, but it can be formed as follows, for example. For example, an annular stretchable fabric constituting the side surface portion 3 whose size is designed to be large on the assumption that the overlapping width will be shortened in the joint region B is produced, and the fabric is cut diagonally at the position where the strong stretchable portion 5 is provided. .. As a result, the first elastic fabric 3A and the second elastic fabric 3B can be obtained. By changing the position and angle when cutting the shrinkable fabric, the position and inclination angle of the strongly stretchable portion 5 finally provided on the side surface portion 3 can be adjusted.

得られた第１伸縮性生地３Ａと第２伸縮性生地３Ｂとを裁断部分で重ね合わせ、樹脂などを用いて熱融着させて第１伸縮性生地３Ａと第２伸縮性生地３Ｂとを接合領域Ｂで接合する。接合領域Ｂは、２枚の伸縮性生地を樹脂などで熱融着させた領域であり、側面部３の他の領域よりも伸縮性が低い領域となる。このようにして、爪先部３１側へ近づく方向に傾斜して一端５ａから足底部２側へ直線的に延伸する帯状の強伸縮部５を側面部３に形成することができる。 The obtained first elastic fabric 3A and the second elastic fabric 3B are overlapped at the cut portion and heat-sealed using a resin or the like to join the first elastic fabric 3A and the second elastic fabric 3B. Join in region B. The joining region B is a region in which two stretchable fabrics are heat-sealed with a resin or the like, and is a region having lower elasticity than the other regions of the side surface portion 3. In this way, the side surface portion 3 can be formed with a band-shaped strong elastic portion 5 that is inclined in a direction approaching the toe portion 31 side and extends linearly from one end 5a to the sole portion 2 side.

なお、側面部３を構成する生地とは別の生地またはシート状の樹脂を、接着剤または熱融着で側面部３に貼付するなどして、側面部３に強伸縮部５を設けてもよい。または、樹脂をシルクスクリーンで側面部３に塗布するなどして、側面部３に強伸縮部５を設けてもよい。 Even if a strong stretchable portion 5 is provided on the side surface portion 3 by attaching a fabric or a sheet-like resin different from the fabric constituting the side surface portion 3 to the side surface portion 3 with an adhesive or heat fusion. Good. Alternatively, the strong expansion / contraction portion 5 may be provided on the side surface portion 3 by applying the resin to the side surface portion 3 with a silk screen.

側面部３を構成する生地とは別の生地または樹脂からなる強伸縮部５を側面部３に設ける場合、強伸縮部５は側面部３の内面・外面（裏・表）のいずれに設けても構わない。着用感を重視する場合は側面部３の外面（表）に強伸縮部５を設け、外観を重視する場合は側面部３の内面（裏）に強伸縮部５を設ければよい。ただし、側面部３の内面に強伸縮部５を設ける場合、強伸縮部５は肌に接する。そのため、側面部３の内面に強伸縮部５を設ける場合には、フットカバー１を着用した際に異物感が生じるような硬い素材、またはプラスチック化するような接着剤の使用を避けることが好ましい。 When a strong stretchable portion 5 made of a cloth or resin different from the cloth constituting the side surface portion 3 is provided on the side surface portion 3, the strong stretchable portion 5 is provided on either the inner surface or the outer surface (back or front surface) of the side surface portion 3. It doesn't matter. When the wearing feeling is important, the strong expansion / contraction portion 5 may be provided on the outer surface (front surface) of the side surface portion 3, and when the appearance is important, the strong expansion / contraction portion 5 may be provided on the inner surface (back surface) of the side surface portion 3. However, when the strong elastic portion 5 is provided on the inner surface of the side surface portion 3, the strong elastic portion 5 comes into contact with the skin. Therefore, when the strong expansion / contraction portion 5 is provided on the inner surface of the side surface portion 3, it is preferable to avoid using a hard material that causes a foreign body sensation when the foot cover 1 is worn, or an adhesive that makes it plastic. ..

また、強伸縮部５の伸縮性の程度は特に限定されず、側面部３を構成する生地よりも低い伸縮性を有するものであればよい。ただし、強伸縮部５の伸縮性が過剰に低い場合、肌への当たりが強くなり異物感を生じる。そのため、強伸縮部５は、例えば側面部３を構成する生地の２倍以上５倍以下程度の収縮力となる伸縮性を有することが好ましい。これにより、肌への異物感を生じることなく、フットカバー１の脱げを軽減することができる。 Further, the degree of elasticity of the strong elastic portion 5 is not particularly limited, and any fabric having lower elasticity than the fabric constituting the side surface portion 3 may be used. However, if the elasticity of the strongly elastic portion 5 is excessively low, the contact with the skin becomes strong and a foreign body sensation is generated. Therefore, it is preferable that the strongly stretchable portion 5 has elasticity such that the shrinkage force is about twice or more and five times or less that of the fabric constituting the side surface portion 3. As a result, it is possible to reduce the detachment of the foot cover 1 without causing a foreign body sensation on the skin.

図４は、足（右足）Ｆの中足趾節関節の屈曲時の骨格を示す側面である。また、図５は、足（右足）Ｆを裏側から見た場合の足Ｆの骨格を示す下面図である。図４および図５に示すように、歩行の際、足Ｆの第１〜第５中足骨と各基節骨との間の関節である第１〜第５足趾節関節が屈曲し、足Ｆの爪先側のみが接地し踵側が浮いた状態となる。強伸縮部５は、このような第１〜第５足趾節関節の屈曲時に踵部３２を爪先部３１側へ引張するようにその位置が設定されている。 FIG. 4 is a side view showing the skeleton of the metatarsal toe joint of the foot (right foot) F during flexion. Further, FIG. 5 is a bottom view showing the skeleton of the foot F when the foot (right foot) F is viewed from the back side. As shown in FIGS. 4 and 5, during walking, the 1st to 5th toe joints, which are joints between the 1st to 5th metatarsal bones of the foot F and each proximal phalanx, are flexed. Only the toe side of the foot F touches the ground and the heel side floats. The position of the strong expansion / contraction portion 5 is set so as to pull the heel portion 32 toward the toe portion 31 when the first to fifth toe joints are flexed.

図６は、強伸縮部５の位置を説明するための足（右足）Ｆの内側側面図である。図６に示すように、強伸縮部５のうち最も踵部３２側にある位置を第１基準位置Ｐ１、強伸縮部５のうち最も爪先部３１側にある位置を第２基準位置Ｐ２と定義する。 FIG. 6 is a medial side view of the foot (right foot) F for explaining the position of the strong expansion / contraction portion 5. As shown in FIG. 6, the position closest to the heel portion 32 side of the strong expansion / contraction portion 5 is defined as the first reference position P1, and the position closest to the toe portion 31 side of the strong expansion / contraction portion 5 is defined as the second reference position P2. To do.

この場合、足Ｆの内側側面視において、第１基準位置Ｐ１は、脛骨前端から踵骨後端までを含む第１水平区間Ｄ１（図中、足Ｆの前後（長手）方向における区間ｄ３＋区間ｄ４）内に位置することが好ましい。また、第２基準位置Ｐ２は、足Ｆの第１中足骨骨頭（第１中足骨前端）から脛骨後端までの第２水平区間Ｄ２（図中、足Ｆの前後方向における区間ｄ１＋区間ｄ２＋区間ｄ３）内に位置することが好ましい。 In this case, in the medial lateral view of the foot F, the first reference position P1 is the first horizontal section D1 including the anterior end of the tibia to the posterior end of the calcaneus (in the figure, the section d3 + the section d4 in the anterior-posterior (longitudinal) direction of the foot F). ) Is preferably located inside. The second reference position P2 is the second horizontal section D2 from the first metatarsal head (anterior end of the first metatarsal bone) of the foot F to the posterior end of the tibia (in the figure, the section d1 + section in the anterior-posterior direction of the foot F). It is preferably located within d2 + section d3).

第１基準位置Ｐ１が足Ｆの脛骨前端よりも爪先部３１側にある場合、中足趾節関節の屈曲時に強伸縮部５が踵部３２を爪先部３１側へ引張する力が弱くなる。また、側面部３の履き口３ａの周縁部分のうち足Ｆの土踏まずの窪みに対応する部分（足Ｆの土踏まずの窪みの上方に位置する部分）は、肌と生地とのフィット性が比較的低くなる。このフィット性が低い部分に第１基準位置Ｐ１が含まれる場合、歩行時に強伸縮部５が肌へ当たったり擦れたりすることで履き心地の低下に繋がりやすい。そのため、土踏まずの窪みが浅くなる脛骨前端から踵骨後端までの第１水平区間Ｄ１内に第１基準位置Ｐ１が位置するように、強伸縮部５を配置することが好ましい。 When the first reference position P1 is closer to the toe portion 31 than the anterior end of the tibia of the foot F, the force with which the strong elastic portion 5 pulls the heel portion 32 toward the toe portion 31 side becomes weak when the metatarsal joint is flexed. Further, of the peripheral portion of the foot opening 3a of the side surface portion 3, the portion corresponding to the dent of the arch of the foot F (the portion located above the dent of the arch of the foot F) has a relatively good fit between the skin and the fabric. It gets lower. When the first reference position P1 is included in the portion having low fit, the strong elastic portion 5 easily hits or rubs against the skin during walking, which tends to lead to a decrease in comfort. Therefore, it is preferable to arrange the strong expansion / contraction portion 5 so that the first reference position P1 is located in the first horizontal section D1 from the anterior end of the tibia to the posterior end of the calcaneus where the depression of the arch becomes shallow.

また、第２基準位置Ｐ２が足Ｆの第１中足骨骨頭よりも爪先部３１側にある場合、歩行動作に関わる第１中足趾節関節が屈折しづらく、歩行動作に違和感または支障が生じる可能性がある。そのため、第１中足趾節関節の屈折動作に影響を与えにくいように、足Ｆの内側側面視において、第２基準位置Ｐ２が第１中足趾節関節より踵部３２側、すなわち足Ｆの第１中足趾節関節骨頭よりも踵部３２側に位置することが好ましい。 Further, when the second reference position P2 is closer to the toe 31 side than the first metatarsal head of the foot F, the first metatarsal joint related to the walking motion is difficult to bend, which causes discomfort or hindrance to the walking motion. It can occur. Therefore, the second reference position P2 is on the heel 32 side of the first metatarsophalangeal joint, that is, the foot F in the medial lateral view of the foot F so as not to affect the refraction motion of the first metatarsophalangeal joint. It is preferably located on the heel portion 32 side of the first metatarsophalangeal joint head.

さらに、第２基準位置Ｐ２は、足Ｆの第１中足骨骨底（第１中足骨骨底）から脛骨後端までを含む第３水平区間Ｄ３（図中、足Ｆの前後方向における区間ｄ２＋区間ｄ３）内に位置することがより好ましい。第２基準位置Ｐ２が、踵部３２に近づくことよって、踵部３２を爪先部３１側へ引張する力が強くなる。また、第１中足趾節関節から離れることによって、第１中足趾節関節の屈曲動作への影響が低くなる。したがって、第２基準位置Ｐ２は、第３水平区間Ｄ３内に位置することがより好ましい。 Further, the second reference position P2 is the third horizontal section D3 (in the figure, in the anterior-posterior direction of the foot F) including the first metatarsal bone base (first metatarsal bone base) of the foot F to the posterior end of the tibia. It is more preferable to be located within the section d2 + section d3). As the second reference position P2 approaches the heel portion 32, the force for pulling the heel portion 32 toward the toe portion 31 becomes stronger. Further, by moving away from the first metatarsal joint, the influence on the flexion motion of the first metatarsal joint is reduced. Therefore, the second reference position P2 is more preferably located within the third horizontal section D3.

なお、強伸縮部５の一端５ａは、履き口３ａの周縁部分に位置していればよく、必ずしも履き口３ａにまで至っている必要性はない。同様に、強伸縮部５の他端５ｂは、足底部２の近傍部分に位置していればよく、必ずしも足底部２にまで至っている必要性はない。 It should be noted that one end 5a of the strong expansion / contraction portion 5 may be located at the peripheral edge portion of the wearing opening 3a, and does not necessarily have to reach the wearing opening 3a. Similarly, the other end 5b of the strong expansion / contraction portion 5 may be located in the vicinity of the sole portion 2, and does not necessarily have to reach the sole portion 2.

（強伸縮部の効果）
図７は、歩行の際の足Ｆの状態を示す足（左足）Ｆの内側側面図である。歩行の際、図７の７０１に示すように足Ｆは踵から接地する（踵側のみが接地し爪先側が浮いた状態）。この状態から図７の７０２に示すように足Ｆの爪先側へ重心が移動する（爪先側および踵側が接地した状態）。そして、図７の７０３に示すように爪先側の足裏で地面を蹴り上げることで人は前進する（爪先側のみが接地し踵側が浮いた状態）。 (Effect of strong expansion and contraction part)
FIG. 7 is a medial side view of the foot (left foot) F showing the state of the foot F during walking. When walking, as shown in 701 of FIG. 7, the foot F touches the ground from the heel (only the heel side touches the ground and the toe side floats). From this state, the center of gravity moves from this state to the toe side of the foot F as shown in 702 of FIG. 7 (a state in which the toe side and the heel side are in contact with the ground). Then, as shown in 703 of FIG. 7, a person moves forward by kicking up the ground with the sole of the foot on the toe side (a state in which only the toe side touches the ground and the heel side floats).

図８は、中足趾節関節の非屈曲（伸展）時のフットカバー１の状態を示す足Ｆの内側側面図である。また、図９は、中足趾節関節の屈曲時のフットカバー１の状態を示す足Ｆの内側側面図である。 FIG. 8 is a medial side view of the foot F showing the state of the foot cover 1 when the metatarsal toe joint is not flexed (extended). Further, FIG. 9 is a medial side view of the foot F showing the state of the foot cover 1 when the metatarsal toe joint is flexed.

図８に示すように、中足趾節関節の非屈曲時（例えば、図７の７０１および７０２の状態）には、強伸縮部５が踵部３２を爪先部３１側へ引張する作用は非常に小さい。そのため、従来のように締付力の高い締付部を履き口の周縁に沿って設けた場合に比べて、足Ｆの踵が常にホールドされた状態とならず、テーピングのように固定するなど作用が働かない。したがって、中足趾節関節の非屈曲時に、強伸縮部５よって着用感を損ねることはない。 As shown in FIG. 8, when the metatarsal joint is not flexed (for example, in the states of 701 and 702 in FIG. 7), the strong expansion / contraction portion 5 pulls the heel portion 32 toward the toe portion 31 side. Is small. Therefore, the heel of the foot F is not always held, and is fixed like taping, as compared with the case where a tightening portion having a high tightening force is provided along the peripheral edge of the opening as in the conventional case. The action does not work. Therefore, when the metatarsal toe joint is not flexed, the strong elastic portion 5 does not impair the wearing feeling.

一方、図９に示すように、中足趾節関節の屈曲時、側面部３を構成する生地の前後方向への伸長に伴い、踵部３２を爪先部３１側へ引張する強伸縮部５の引張力（図中、参照符号「ｆ」）が増幅される。例えば図７を例に挙げて説明すると、図７の７０２から７０３に示す状態へ足Ｆが移行する際、爪先へ体重が移動して踵が徐々に浮き上がる。踵が徐々に浮き上がるにつれて、足底部２を構成する生地とともに、側面部３（側辺部３３）を構成する生地が前後方向へ伸長する。この側面部３を構成する生地の前後方向への伸長に伴い、強伸縮部５が収縮するように作用することで引張力ｆが増幅される。 On the other hand, as shown in FIG. 9, when the metatarsal joint is flexed, the strong stretchable portion 5 pulls the heel portion 32 toward the toe portion 31 as the fabric constituting the side surface portion 3 extends in the anteroposterior direction. The tensile force (reference symbol "f" in the figure) is amplified. For example, exemplifying FIG. 7 as an example. When the foot F shifts from 702 to 703 in FIG. 7, the weight shifts to the toe and the heel gradually rises. As the heel gradually rises, the fabric constituting the sole portion 2 and the fabric constituting the side surface portion 3 (side side portion 33) extend in the front-rear direction. The tensile force f is amplified by the strong expansion / contraction portion 5 acting to contract as the fabric constituting the side surface portion 3 expands in the front-rear direction.

引張力ｆが増幅されることにより、踵部３２の肌への着圧が高くなり、歩行動作によるずれ、およびフットカバー１と靴との摩擦によるずれが抑制される。そのため、中足趾節関節の屈曲時に、強伸縮部５によってフットカバー１の脱げを軽減することができる。また、強伸縮部５が履き口３ａの周縁部分から足底部２へ向かうにつれて爪先部３１側に傾斜していることから、後方へ突出する踵部３２のうち、特に上方（履き口３ａ近傍）部分の生地の肌への着圧が高くなる。そのため、踵部３２の生地が下方へずれて脱げることを効果的に軽減することができる。 By amplifying the tensile force f, the pressure applied to the skin of the heel portion 32 is increased, and the displacement due to the walking motion and the displacement due to the friction between the foot cover 1 and the shoe are suppressed. Therefore, when the metatarsal toe joint is flexed, the strong expansion / contraction portion 5 can reduce the detachment of the foot cover 1. Further, since the strongly elastic portion 5 is inclined toward the toe portion 31 side from the peripheral portion of the cuff 3a toward the sole 2, the heel portion 32 protruding rearward is particularly upward (near the cuff 3a). The pressure on the skin of the part of the fabric increases. Therefore, it is possible to effectively reduce the fact that the fabric of the heel portion 32 is displaced downward and comes off.

このように、踵部３２を爪先部３１側へ引張する強伸縮部５の引張力ｆは、中足趾節関節の屈曲時には増幅されて作用し、踵部３２を肌へ密着させる。したがって、本実施形態によれば、中足趾節関節の非屈曲時の締付感を抑えつつ歩行などの動作によるずれを軽減できるフットカバー１を実現することができる。 In this way, the tensile force f of the strong expansion / contraction portion 5 that pulls the heel portion 32 toward the toe portion 31 is amplified and acts when the metatarsal toe joint is flexed, so that the heel portion 32 is brought into close contact with the skin. Therefore, according to the present embodiment, it is possible to realize the foot cover 1 that can reduce the deviation due to movements such as walking while suppressing the feeling of tightening when the metatarsal toe joint is not flexed.

なお、強伸縮部５は側面部３の幅方向の両側、すなわち側面部３の左右両側に配置され、左右両側から踵部３２を爪先部３１側へ引張することが好ましい。これにより、中足趾節関節の屈曲時の側面部３を構成する生地の前後方向への伸長に伴い、踵部３２を爪先部３１側へ適切に引張することができる。 It is preferable that the strong expansion / contraction portion 5 is arranged on both sides of the side surface portion 3 in the width direction, that is, on the left and right sides of the side surface portion 3, and the heel portion 32 is pulled toward the toe portion 31 from both the left and right sides. As a result, the heel portion 32 can be appropriately pulled toward the toe portion 31 side as the fabric constituting the side surface portion 3 at the time of flexion of the metatarsal joint is extended in the anteroposterior direction.

また、強伸縮部５は、着用感の向上のため足底部２を足Ｆの形状に合わせた左右非対称形状としており、側面部３の形状も左右非対称となっている。そのため、親指側の強伸縮部５の位置を小指側よりやや踵部３２寄りとしている。ただし、足底部２および側面部３は必ずしも足Ｆの形状に合わせて左右非対称形状とする必要はなく、左右対称形状としてもよい。この場合は、強伸縮部５も左右バランスよく踵部３２を爪先部３１側へ引張するために、足Ｆの長手（前後）方向の中心線を境に左右対象に設けることが望ましい。 Further, the strongly elastic portion 5 has a left-right asymmetric shape in which the sole portion 2 matches the shape of the foot F in order to improve the wearing feeling, and the shape of the side surface portion 3 is also left-right asymmetric. Therefore, the position of the strong expansion / contraction portion 5 on the thumb side is slightly closer to the heel portion 32 than on the little finger side. However, the sole portion 2 and the side surface portion 3 do not necessarily have to have a left-right asymmetric shape according to the shape of the foot F, and may have a left-right symmetrical shape. In this case, it is desirable that the strong expansion / contraction portion 5 is also provided symmetrically on the left and right sides with the center line in the longitudinal (front-back) direction of the foot F as a boundary in order to pull the heel portion 32 toward the toe portion 31 side with a good left-right balance.

また、強伸縮部５は、上述の通り、中足趾節関節の屈曲時の側面部３を構成する生地の前後方向への伸長に伴い、踵部３２を爪先部３１側へ引張する引張力を増幅させる。そのため、強伸縮部５は、少なくとも側面部３に設けられていればよく、足底部２に設けられることは必須ではない。ただし、強伸縮部５は、側面部３に加えて足底部２に設けられていてもよい。強伸縮部５が側面部３および足底部２も設けられる構成については後述する。 Further, as described above, the strong expansion / contraction portion 5 has a tensile force that pulls the heel portion 32 toward the toe portion 31 side as the fabric constituting the side surface portion 3 at the time of flexion of the metatarsal joint is extended in the anteroposterior direction. Is amplified. Therefore, the strong expansion / contraction portion 5 may be provided at least on the side surface portion 3, and it is not essential that the strong expansion / contraction portion 5 is provided on the sole portion 2. However, the strong expansion / contraction portion 5 may be provided on the sole portion 2 in addition to the side surface portion 3. The configuration in which the strongly elastic portion 5 is also provided with the side surface portion 3 and the sole portion 2 will be described later.

（強伸縮部の変形例）
図１０は、強伸縮部５の変形例を説明するための足Ｆの内側側面図である。強伸縮部５は、側面部３を構成する生地よりも実質的に強伸縮性を発揮することができるものであれば、その形状、数などは特に限定されない。 (Modification example of strong expansion and contraction part)
FIG. 10 is an inner side view of the foot F for explaining a modified example of the strong expansion / contraction portion 5. The shape, number, and the like of the strongly stretchable portion 5 are not particularly limited as long as they can substantially exhibit stronger stretchability than the fabric constituting the side surface portion 3.

例えば図１０の１００１に示すように、強伸縮部５は一端５ａから他端５ｂへ向かって幅が変化する面形状であってもよい。図１０の１００１では、一端５ａから他端５ｂへ向かって幅が大きくなる面形状の強伸縮部５を示している。 For example, as shown in 1001 of FIG. 10, the strong expansion / contraction portion 5 may have a surface shape whose width changes from one end 5a to the other end 5b. In 1001 of FIG. 10, a surface-shaped strong expansion / contraction portion 5 whose width increases from one end 5a to the other end 5b is shown.

また、図１０の１００２に示すように、強伸縮部５は線形状であってもよい。図１０の１００２では、３つの平行な線形状の強伸縮部５を示している。 Further, as shown in 1002 of FIG. 10, the strong expansion / contraction portion 5 may have a linear shape. In 1002 of FIG. 10, three parallel line-shaped strong expansion / contraction portions 5 are shown.

また、図１０の１００３に示すように、強伸縮部５は点形状の集合体であってもよい。図１０の１００３では、一端５ａから他端５ｂへ向かって配置される領域の幅が大きくなる点形状の集合体の強伸縮部５を示している。 Further, as shown in 1003 of FIG. 10, the strong expansion / contraction portion 5 may be a point-shaped aggregate. In 1003 of FIG. 10, a strong expansion / contraction portion 5 of a point-shaped aggregate in which the width of the region arranged from one end 5a to the other end 5b becomes large is shown.

また、図１０の１００４に示すように、強伸縮部５は複数の帯形状であってもよい。図１０の１００４では、一端５ａから他端５ｂへ向かって直線的に延伸する３つの平行な帯形状（面形状）の強伸縮部５を示している。 Further, as shown in 1004 of FIG. 10, the strong expansion / contraction portion 5 may have a plurality of band shapes. In 1004 of FIG. 10, three parallel strip-shaped (plane-shaped) strongly stretchable portions 5 extending linearly from one end 5a to the other end 5b are shown.

また、図１０の１００５に示すように、強伸縮部５は、足底部２に対する傾斜角度を４５度以上であってもよい。上述の通り、強伸縮部５は、一端５ａが第１水平区間Ｄ１に位置し、他端５ｂが一端５ａより爪先部３１側の第２水平区間Ｄ２に位置していればよく、その傾斜角度は適宜設定可能である。 Further, as shown in 1005 of FIG. 10, the strong expansion / contraction portion 5 may have an inclination angle of 45 degrees or more with respect to the sole portion 2. As described above, the strong expansion / contraction portion 5 may have one end 5a located in the first horizontal section D1 and the other end 5b located in the second horizontal section D2 on the toe portion 31 side of the one end 5a. Can be set as appropriate.

なお、本発明は、側面部３の両側に上述した強伸縮部５を含んでいれば、本発明の課題を解決し得る。例えば、強伸縮部５の一端５ａ同士が、踵部３２側の履き口３ａの側周縁部分に沿って配置された強伸縮部によって連結された構成の場合、図１０に例示する各構成（一端５ａ同士が連結されない各構成）と比べて、中足趾節関節の非屈曲時に足Ｆへの締付けが生じ得る。ただし、一端５ａ同士が連結された構成であっても、中足趾節関節が屈曲した時に強伸縮部５による引張力ｆが増幅されるため、非屈曲時における足Ｆへの締付感を増大させることなく、歩行時のフットカバーのずれまたは脱げを好適に軽減することができる。 It should be noted that the present invention can solve the problem of the present invention if the above-mentioned strong expansion / contraction portions 5 are included on both sides of the side surface portion 3. For example, in the case where one ends 5a of the strong stretchable portion 5 are connected to each other by a strong stretchable portion arranged along the side peripheral edge portion of the shoe opening 3a on the heel portion 32 side, each configuration (one end) illustrated in FIG. Tightening to the foot F may occur when the metatarsophalangeal joint is not flexed, as compared with each configuration in which 5a are not connected to each other). However, even if the ends 5a are connected to each other, the tensile force f by the strong expansion / contraction portion 5 is amplified when the metatarsal toe joint is flexed, so that the foot F feels tight when not flexed. It is possible to preferably reduce the displacement or detachment of the foot cover during walking without increasing the amount.

〔実施形態２〕
本発明の他の実施形態について、図１１を参照して説明する。なお、説明の便宜上、上記実施形態にて説明した部材と同じ機能を有する部材については、同じ符号を付記し、その説明を繰り返さない。 [Embodiment 2]
Other embodiments of the present invention will be described with reference to FIG. For convenience of explanation, the same reference numerals will be added to the members having the same functions as the members described in the above embodiment, and the description will not be repeated.

本実施形態に係るフットカバーは、側面部の幅方向の両側にそれぞれ配置された強伸縮部が足底部で繋がっている点において、上記実施形態１に係るフットカバーと主に異なる。 The foot cover according to the present embodiment is mainly different from the foot cover according to the first embodiment in that the strongly elastic portions arranged on both sides in the width direction of the side surface portion are connected by the sole portion.

（強伸縮部の構成）
図１１は、本実施形態に係るフットカバー１１を足Ｆに着用した状態を示す斜視図である。図１１に示すように、フットカバー１１は、側面部３および足底部２にわたって強伸縮部５１が設けられる。この強伸縮部５１は、側面部３の両側にそれぞれ配置された強伸縮部５が、足底部２に配置された足底強伸縮部６によって繋がった形状である。 (Structure of strong expansion and contraction part)
FIG. 11 is a perspective view showing a state in which the foot cover 11 according to the present embodiment is worn on the foot F. As shown in FIG. 11, the foot cover 11 is provided with a strong expansion / contraction portion 51 over the side surface portion 3 and the sole portion 2. The strong expansion / contraction portion 51 has a shape in which the strong expansion / contraction portions 5 arranged on both sides of the side surface portion 3 are connected by the sole strong expansion / contraction portions 6 arranged on the sole portion 2.

このような強伸縮部５１を形成する方法は特には限定されないが、例えば以下のようにして形成可能である。例えば、フットカバー１１がニットタイプである場合、編み立て時に伸縮性力の高い高弾性糸を、強伸縮部５１を設ける位置に挿入することで、強伸縮部５１を形成することができる。または、強伸縮部５１を設ける位置の度目（編目）を小さくする、若しくは強伸縮部５１を設ける位置をタック編みなど、強伸縮部５の編目構造を変化させるなどして強伸縮部５１を形成してもよい。 The method for forming such a strong expansion / contraction portion 51 is not particularly limited, but can be formed as follows, for example. For example, when the foot cover 11 is a knit type, the strong elastic portion 51 can be formed by inserting a highly elastic yarn having a high elastic force at the time of knitting at a position where the strong elastic portion 51 is provided. Alternatively, the strong stretchable portion 51 is formed by reducing the stitches (stitches) at the position where the strong stretchable portion 51 is provided, or by changing the stitch structure of the strong stretchable portion 5 such as tack knitting at the position where the strong stretchable portion 51 is provided. You may.

（強伸縮部の効果）
強伸縮部５１によれば、中足趾節関節の屈曲時、側面部３の生地の前後方向への伸長に伴い、踵部３２を爪先部３１側へ引張する強伸縮部５１の引張力ｆが増幅される。そのため、踵部３２の肌への着圧が高くなり、フットカバー１のずれまたは脱げを軽減することができる。 (Effect of strong expansion and contraction part)
According to the strong stretchable portion 51, when the metatarsal joint is flexed, the tensile force f of the strong stretchable portion 51 that pulls the heel portion 32 toward the toe portion 31 as the fabric of the side surface portion 3 extends in the anteroposterior direction. Is amplified. Therefore, the pressure applied to the skin of the heel portion 32 is increased, and the slippage or detachment of the foot cover 1 can be reduced.

また、強伸縮部５１では、強伸縮部５が足底強伸縮部６によって繋がっているため、各強伸縮部５の相対的な位置ずれが生じにくい。したがって、本実施形態によれば、歩行などの動作によるずれまたは脱げを長時間にわたりの軽減可能なフットカバー１１を実現することができる。 Further, in the strong expansion / contraction portion 51, since the strong expansion / contraction portion 5 is connected by the sole strong expansion / contraction portion 6, the relative positional deviation of each strong expansion / contraction portion 5 is unlikely to occur. Therefore, according to the present embodiment, it is possible to realize the foot cover 11 that can reduce the displacement or the detachment due to the movement such as walking for a long period of time.

本発明は上述した各実施形態に限定されるものではなく、請求項に示した範囲で種々の変更が可能であり、異なる実施形態にそれぞれ開示された技術的手段を適宜組み合わせて得られる実施形態についても本発明の技術的範囲に含まれる。 The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and the embodiments obtained by appropriately combining the technical means disclosed in the different embodiments. Is also included in the technical scope of the present invention.

１，１１ フットカバー
２ 足底部
３ 側面部
４ 滑り止め部
５，５１ 強伸縮部
５ａ 一端
６ 足底強伸縮部（強伸縮部）
３１ 爪先部
３２ 踵部
３Ａ 第１伸縮性生地
３Ｂ 第２伸縮性生地
Ｄ１ 第１水平区間
Ｄ２ 第２水平区間
Ｄ３ 第３水平区間 1,11 Foot cover 2 Sole 3 Side 4 Non-slip 5,51 Strong stretch 5a One end 6 Sole strong stretch (strong stretch)
31 Toe part 32 Heel part 3A 1st elastic fabric 3B 2nd elastic fabric D1 1st horizontal section D2 2nd horizontal section D3 3rd horizontal section

Claims (9)

足の足裏を覆う足底部と、
爪先部および踵部を含み、履き口となる開口部が形成された伸縮性を有する側面部と、
一端が前記開口部の周縁部分に位置し、前記爪先部側に近づく方向に傾斜して前記一端から前記足底部側へ延伸する、前記側面部より伸縮性が低い強伸縮部とを備え、
前記強伸縮部は、前記側面部の幅方向の両側にそれぞれ配置され、前記足の中足趾節関節の屈曲時に前記踵部を前記爪先部側へ引張することを特徴とするフットカバー。 The sole that covers the sole of the foot and
A stretchable side surface that includes an opening that serves as a footwear, including the toe and heel, and
It is provided with a strong elastic portion having one end located at the peripheral edge portion of the opening, inclined in a direction approaching the toe portion side, and extending from the one end to the sole portion side, which is less elastic than the side surface portion.
The foot cover is provided on both sides of the side surface portion in the width direction, and pulls the heel portion toward the toe portion when the metatarsal toe joint of the foot is flexed. 前記足の内側側面視において、
前記踵部側に位置する前記強伸縮部の位置を第１基準位置、前記爪先部側に位置する前記強伸縮部の位置を第２基準位置としたとき、
前記第１基準位置は、前記足の脛骨前端から踵骨後端までを含む第１水平区間内に位置し、
前記第２基準位置は、前記足の第１中足骨骨頭から脛骨後端までを含む第２水平区間内に位置することを特徴とする請求項１に記載のフットカバー。 In the medial lateral view of the foot
When the position of the strong expansion / contraction portion located on the heel portion side is set as the first reference position and the position of the strong expansion / contraction portion located on the toe portion side is set as the second reference position.
The first reference position is located within the first horizontal section including the anterior end of the tibia to the posterior end of the calcaneus of the foot.
The foot cover according to claim 1, wherein the second reference position is located in a second horizontal section including the first metatarsal head of the foot to the posterior end of the tibia. 前記足の内側側面視において、
前記第２基準位置は、前記足の第１中足骨骨底から前記脛骨後端までを含む第３水平区間内に位置することを特徴とする請求項２に記載のフットカバー。 In the medial lateral view of the foot
The foot cover according to claim 2, wherein the second reference position is located in a third horizontal section including the base of the first metatarsal bone of the foot to the posterior end of the tibia. 前記強伸縮部は、連続した面形状であることを特徴とする請求項１から３のいずれか１項に記載のフットカバー。 The foot cover according to any one of claims 1 to 3, wherein the strongly stretchable portion has a continuous surface shape. 前記強伸縮部は、略直線的に延伸する帯状であることを特徴とする請求項４に記載のフットカバー。 The foot cover according to claim 4, wherein the strongly stretchable portion has a strip shape that extends substantially linearly. 前記側面部は、前記爪先部を含む第１伸縮性生地と、前記踵部を含む第２伸縮性生地とを有し、
前記強伸縮部は、前記第１伸縮性生地と前記第２伸縮性生地とが重ね合わされて構成されることを特徴とする請求項１から５の何れか１項に記載のフットカバー。 The side surface portion has a first elastic fabric including the toe portion and a second elastic fabric including the heel portion.
The foot cover according to any one of claims 1 to 5, wherein the strongly elastic portion is formed by superimposing the first elastic fabric and the second elastic fabric. 前記側面部は、フリーカット生地からなることを特徴とする請求項１から６の何れか１項に記載のフットカバー。 The foot cover according to any one of claims 1 to 6, wherein the side surface portion is made of a free-cut fabric. 前記踵部の内面に設けられた滑り止め部をさらに備えることを特徴とする請求項１から７の何れか１項に記載のフットカバー。 The foot cover according to any one of claims 1 to 7, further comprising a non-slip portion provided on the inner surface of the heel portion. 前記側面部の両側にそれぞれ配置された前記強伸縮部は、前記足底部で繋がっていることを特徴とする請求項１から８の何れか１項に記載のフットカバー。 The foot cover according to any one of claims 1 to 8, wherein the strongly elastic portions arranged on both sides of the side surface portion are connected by the sole portion.
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JP2019157300A JP7302861B2 (en) 2019-08-29 2019-08-29 foot cover
PCT/JP2020/027181 WO2021039156A1 (en) 2019-08-29 2020-07-13 Foot cover
TW109123992A TW202112260A (en) 2019-08-29 2020-07-16 Foot cover
TW109209066U TWM605025U (en) 2019-08-29 2020-07-16 Invisible socks
CN202021693510.9U CN212520815U (en) 2019-08-29 2020-08-14 Socks cover
CN202010815682.7A CN112438442A (en) 2019-08-29 2020-08-14 Socks cover

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JP3162440U (en) * 2010-06-21 2010-09-02 百合子 吉田 Foot cover
JP2014205935A (en) * 2013-04-15 2014-10-30 ブロンドール株式会社 Foot cover and method of manufacturing the same
JP2019031752A (en) * 2017-08-07 2019-02-28 グンゼ株式会社 Foot cover

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JP3162440U (en) * 2010-06-21 2010-09-02 百合子 吉田 Foot cover
JP2014205935A (en) * 2013-04-15 2014-10-30 ブロンドール株式会社 Foot cover and method of manufacturing the same
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Publication number Priority date Publication date Assignee Title
KR102470860B1 (en) * 2022-05-03 2022-11-25 서한나 method for manufacturing of outer socks and the outer socks

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