Shoe

Abstract

The purpose of the present invention is to suppress the extension of a tongue wing while improving the fit feeling of a shoe. A shoe provided with an upper in which an insertion opening into which a foot is inserted, a front opening extending forward from the insertion opening, and a bottom opening formed so as to face the insertion opening are formed, a flap (5) having: a tongue (51) provided on the inside of the upper and closing at least a part of the front opening; the shoe (1) is provided with a shoe tongue (51) and a flap part (52) which extends from the shoe tongue (51) to one side in the foot width direction, the shoe sole covers the bottom surface opening, the flap part (52) is formed by a layer structure having a first layer (531) and a second layer (532) arranged below the first layer (531), the elasticity of the first layer (531) is smaller than that of the second layer (532), and the flap part (52) is formed by the first layer (531) and the second layer (532). The length of the first layer (531) from one end portion to the other end portion is longer than the length of a direct connection line connecting the one end portion and the other end portion along the foot width direction.

Description

Technical Field

[0001] This disclosure relates to a shoe. Background Technology

[0002] Patent Document 1 discloses a shoe comprising an upper covering the instep, a sole covering the foot, and a tongue wing disposed on the inner side of the upper. An opening, or shoe opening, is formed in the upper for inserting the foot into the area surrounded by the upper and sole. A throat, an opening extending towards the toe as the edge of the shoe opening, is formed in the upper. The tongue wing has a tongue that extends from the inner side of the upper to block the throat, and wings (wing portions) extending from the tongue along the width of the foot towards the inner and outer sides of the foot, respectively. The front ends of each wing portion engage with the shoe.

[0003] [Existing technical documents]

[0004] [Patent Literature]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2023-53438 Summary of the Invention

[0006] [The problem the invention aims to solve]

[0007] The tongue wing on the shoe covers the instep of the wearer using the tongue and wing. However, while the tongue, which covers the throat, is attached to the shoe via the wing, improving the fit, the tongue wing can sometimes stretch with use.

[0008] This disclosure was made in view of the aforementioned circumstances, and its purpose is to improve the fit of the shoe while suppressing the elongation of the tongue.

[0009] [Technical means to solve the problem]

[0010] To address the aforementioned issues and achieve the objective, the shoe disclosed herein includes an upper, a tongue, and a sole. The upper has an insertion opening for inserting a foot, a front opening extending forward from the insertion opening, and a bottom opening facing the insertion opening. The tongue has a tongue disposed on the inside of the upper and blocking at least a portion of the front opening, and a wing portion extending from the tongue to one side along the width of the foot. The sole covers the bottom opening. In the shoe, the wing portion is formed by a layered structure having a first layer and a second layer disposed below the first layer. The first layer has less elasticity than the second layer, and the length of the first layer from one end that becomes the tongue side to the other end that becomes the opposite side of the tongue side is longer than the length of a direct connecting line that connects one end and the other end along the width of the foot.

[0011] [The effects of the invention]

[0012] The shoe disclosed herein can improve the fit of the shoe while inhibiting the elongation of the tongue wings. Attached Figure Description

[0013] Figure 1 This is a three-dimensional view of the shoe according to embodiment 1.

[0014] Figure 2 This is a plan view of the shoe according to embodiment 1.

[0015] Figure 3 This is a diagram showing the unfolded shape of the tongue wings.

[0016] Figure 4 It is along Figure 2 The image shows a cross-sectional view of the shoe cut along line IV-IV.

[0017] Figure 5 It is a plan view of the midsole, and a diagram showing the front end joint of the first wing section.

[0018] Figure 6 This is the unfolded diagram of the tongue wing of the first modified example.

[0019] Figure 7 This is the unfolded diagram of the tongue wing in the second variation.

[0020] Figure 8 This is the unfolded diagram of the tongue wing in the third variation.

[0021] Figure 9 This is the unfolded diagram of the tongue wing of the fourth variation.

[0022] Figure 10 This is the unfolded diagram of the tongue wing in the fifth variation.

[0023] Explanation of icon numbers

[0024] 1: Shoes

[0025] 2: Shoe upper

[0026] 21: Insertion port

[0027] 22: Front opening

[0028] 23: Open bottom

[0029] 24: Eyelet

[0030] 3: Midsole

[0031] 31: Joint area

[0032] 4: Shoe sole

[0033] 5: Tongue wings

[0034] 51: Shoe Tongue

[0035] 52: Wing section

[0036] 53: First Wing Section

[0037] 531: First Floor

[0038] 531a: One end

[0039] 531b: The other end

[0040] 531c: Protrusion

[0041] 532: Second Layer

[0042] 54: Second Wing Section Detailed Implementation

[0043] Hereinafter, embodiments of the shoe disclosed herein will be described in detail based on the accompanying drawings. However, the present invention is not limited to these embodiments. In the following description, the same reference numerals are used to refer to the same parts, and repeated descriptions are omitted.

[0044] Figure 1 This is a perspective view of the shoe according to Embodiment 1 of this disclosure. Figure 2 This is a plan view of the shoe according to Embodiment 1. (Including...) Figure 1 In the figures included, only the shoe 1 for the left foot is shown. Since shoe 1 has a symmetrical structure for both the left and right feet, only the shoe 1 for the left foot will be described in this embodiment, omitting the description of the shoe 1 for the right foot. In the following description, the toe side of the wearer's foot is defined as the front, and the heel side as the back. The direction perpendicular to the front-back direction when viewing shoe 1 from above is defined as the foot width direction.

[0045] Furthermore, the side closest to the center of the foot in its anatomical alignment is called the medial side, and the side opposite the center is called the lateral side. In other words, the side closer to the center in the anatomical alignment is called the medial side, and the side furthest from the center is called the lateral side. Additionally, the term "vertical" or "upper" refers to a direction perpendicular to both the front-back and foot-width directions, unless otherwise specified.

[0046] The shoe 1 includes an upper 2, a midsole 3, a sole 4, and a tongue 5. The upper 2 covers the upper surface of the sole 4. A space is provided between the upper 2 and the sole 4 for the wearer's foot to enter.

[0047] The upper 2 has an insertion opening 21 for the wearer's foot to insert, a front opening 22 extending forward from the insertion opening 21, and a bottom opening 23 facing the insertion opening 21. The upper 2 is fixed to the sole 4 by stitching, welding, bonding, or a combination thereof.

[0048] On the upper 2, a plurality of eyelets 24 are formed in a front-to-back arrangement along the edge of the front opening 22. Shoelaces (not shown) in the form of ropes pass through the eyelets 24. By pulling the shoelaces that pass through the eyelets 24, the width of the front opening 22 is narrowed, thereby allowing the upper 2 to fit more closely to the wearer's foot.

[0049] The midsole 3 is attached to the upper 2. The midsole 3 blocks the bottom opening 23 formed on the upper 2. Alternatively, the midsole 3 may not be provided on the shoe 1. In this case, the bottom opening 23 may be blocked, for example, by the sole 4.

[0050] The sole 4 is located beneath the upper 2. The sole 4 supports the wearer's foot from the ball of the foot. The sole 4 is the ground contact component. The sole 4 is formed of a cushioning raw material to absorb the impact exerted on the foot during walking or running.

[0051] The tongue wing 5 is located on the inside of the upper 2. Figure 3 This is a diagram showing the unfolded shape of the winglet. The winglet 5 includes the shoe tongue 51 and the winglet portion 52. (See diagram below.) Figure 1 and Figure 2 As shown, the tongue 51 blocks at least a portion of the front opening 22 formed on the upper 2.

[0052] The wing portion 52 is formed to extend from the tongue 51 along the width of the foot. The wing portion 52 has: a first wing portion 53 extending inward from the tongue 51 along the width of the foot; and a second wing portion 54 extending outward from the tongue 51 along the width of the foot.

[0053] Figure 4 It is along Figure 2 The diagram shows a cross-sectional view of the shoe cut along line IV-IV. With the tongue 5 positioned inside the upper 2, the first wing portion 53 and the second wing portion 54 are arranged along the inner surface of the upper 2. The front ends of the first wing portion 53 and the second wing portion 54 engage near the sole 4. The tongue 5, thus positioned, covers the instep of the wearer using the tongue 51 and the wing portion 52. The engagement positions of the front ends of the first wing portion 53 and the second wing portion 54 will be described in detail later.

[0054] return Figure 3 The first wing portion 53 is configured to have multiple layers. For example, the first wing portion 53 has a first layer 531 and a second layer 532 disposed on the first layer 531.

[0055] The widths of the first layer 531 and the second layer 532 along the length of the foot are different. Specifically, the width of the first layer 531 is narrower than the width of the second layer 532. Furthermore, the width of the first layer 531 along the length of the foot is the distance between the ends of the first layer 531 along the length of the foot. The width of the first layer 531 along the lateral length direction is narrower than the width of the second layer 532 throughout the width of the foot. Additionally, the width of the second layer 532, which is formed with a wider width, becomes the width of the first wing portion 53 as a whole along the length of the foot. Furthermore, either the first layer 531 or the second layer 532 can be located on the side facing the upper 2. As will be described later, the second layer 532 has higher elasticity than the first layer 531 and can easily conform to the shape of the wearer's foot; therefore, it is preferable that the second layer 532 is located on the side facing the wearer's foot.

[0056] The first layer 531 and the second layer 532 have different elasticity. Specifically, the first layer 531 is formed of a material with less elasticity than the second layer 532.

[0057] The first layer, 531, has multiple formations. Figure 3 In the example shown, two first layers 531 are formed in the length direction of the foot. Here, a direct connecting line is defined to connect one end 531a, which becomes the tongue 51 side, and the other end 531b, which becomes the opposite side of the tongue 51 side, along the width direction of the foot. The direct connecting line is represented by a double-dotted line in the attached figure. The length of the first layer 531 from one end 531a to the other end 531b is longer than the length L1 of the direct connecting line.

[0058] More specifically, of the two first layers 531, the front first layer 531 has a protrusion 531c that protrudes further forward than the direct connecting line. Additionally, of the two first layers 531, the rear first layer 531 has a protrusion 531c that protrudes further rearward than the direct connecting line.

[0059] In the first layer 531, the portion from one end 531a to the protrusion 531c and the portion from the protrusion 531c to the other end 531b are each formed as a straight line. The protrusion 531c is a corner formed by connecting the portions formed by straight lines with different extending directions.

[0060] When the length from one end 531a to the protrusion 531c is set as L2, and the length from the protrusion 531c to the other end 531b is set as L3, the relationship L1 < L2 + L3 holds. That is, as described above, the length (L2 + L3) of the first layer 531 from one end 531a to the other end 531b is longer than the length L1 of the direct connecting line.

[0061] Furthermore, when the angle between the straight line forming the first layer 531 and the direct connecting line is set to α, it is preferable that the relationship 5°≦α≦45° holds true.

[0062] The front end of the first wing section 53, which becomes the opposite side of the tongue 51, is joined and fixed to the midsole 3. Figure 5 This is a plan view of the midsole, specifically showing the front end of the first wing piece. The midsole 3 blocks the bottom opening 23 formed on the upper 2, and the outer edge of the midsole 3 is positioned in the same direction as the bottom opening 23.

[0063] The joining area 31, where the front end of the first wing portion 53 is joined, is located further inward than the outer edge of the midsole 3. More specifically, the distance between the outer edge of the midsole 3 and the joining area 31 is preferably 1 mm or more and 20 mm or less. The joining area 31 is the area where the front end of the first wing portion 53 is joined. Therefore, when the distance between the front end of the joined first wing portion 53 and the outer edge of the midsole 3 is set as A, it can be said in other words that it is preferably 1 mm ≤ A ≤ 20 mm. Furthermore, if the midsole 3 is not provided on the shoe 1, the front end of the first wing portion 53 can be fixed to the intermediate pad or sole 4 (not shown in the figure).

[0064] The area of ​​the front end of the first wing portion 53, i.e. the area of ​​the joint region 31, is the area of ​​at least one of the metatarsal bones, medial cuneiform bones, and navicular bones of the foot that are inserted into the shoe upper in the direction of foot length.

[0065] The second wing portion 54 uses the same raw material as the second layer 532 of the first wing portion 53 and is formed as a single layer. Furthermore, similar to the first wing portion 53, the second wing portion 54 can also be formed in a multi-layered manner. The front end of the second wing portion 54 is joined to the upper 2. The front end of the second wing portion 54 is joined near the midsole 3.

[0066] In the shoe 1 described above, the instep of the wearer is covered by the tongue 51, the first wing portion 53, and the second wing portion 54 of the tongue wing 5. The second layer 532 of the first wing portion 53 has greater elasticity than the first layer 531. The first layer 531 of the first wing portion 53 has less elasticity than the second layer 532, and its length from one end that becomes the tongue side to the other end that becomes the opposite side of the tongue side is longer than the length of the direct connecting line that connects the one end and the other end along the width direction of the foot. Therefore, the second layer 532 stretches according to the shape of the wearer's foot, thereby improving the fit. The first layer 531 has an elongation allowance because it is longer than the length of the direct connecting line that connects the one end and the other end of the first wing portion 53 along the width direction of the foot, thus allowing the second layer 532 to fit snugly against the wearer's foot, and its less elasticity than the second layer 532 prevents the second layer 532 from stretching. Therefore, while improving the fit of the shoe 1, the elongation of the tongue wing 5 can be suppressed.

[0067] The first wing portion 53 extends inward from the tongue 51. Therefore, with the first wing portion 53 positioned over at least a portion of the metatarsals, medial cuneiform bone, and navicular bone of the foot, it maintains close contact with the arch of the wearer's foot. This elevates at least a portion of the arch of the foot upward through the first wing portion 53, thus suppressing arch collapse. By suppressing arch collapse, the impact on the foot during running or walking can be reduced.

[0068] In addition, a first layer 531 can also be provided on the second wing portion 54, both on the inner and outer sides, to improve the fit of the shoe 1 while suppressing the elongation of the tongue wing 5.

[0069] The first layer 531, which has less elasticity than the second layer 532, is formed with a protrusion 53c that protrudes further forward or backward than the direct connecting line. Thus, the first layer 531 has less elasticity than the second layer 532, but the protrusion 53c becomes part of the elongation allowance. Therefore, the first layer 531 allows the second layer 532 to fit according to the shape of the wearer's foot and inhibits the elongation of the second layer 532.

[0070] In the first wing portion 53, a plurality of first layers 531 are arranged along the leg length direction. The plurality of first layers 531 in the first wing portion 53 can more effectively suppress the elongation of the tongue 5 at multiple locations.

[0071] The front end of the first wing portion 53 engages with the midsole 3, with its engagement area 31 located away from the edge of the midsole 3. This allows the front end of the first wing portion 53 to penetrate deeper into the wearer's foot. Consequently, the contact area between the first wing portion 53 and the arch of the foot is increased, and the arch of the foot is lifted upwards by the first wing portion 53. This more reliably suppresses arch collapse, further reducing the impact on the foot during running or walking.

[0072] Figure 6 This is a diagram showing the unfolded shape of the tongue wing in the first modified example. In the tongue wing 5 of the first modified example, two first layers 531 are formed arranged along the length of the leg. Figure 3 Unlike the example shown, the protrusion 531c of the first layer 531 located at the front protrudes further rearward than the direct connecting line. Furthermore, the protrusion 531c of the first layer 531 located at the rear protrudes further forward than the direct connecting line. That is, in the tongue wing 5 of the first modified example, the protrusion 531c protrudes further forward than the direct connecting line. Figure 3 The protrusions protrude in the opposite direction shown. Therefore, with the first layer 531 formed in this way, the collapse of the arch of the foot can be more effectively suppressed due to the close arrangement of the multiple protrusions 531c.

[0073] Figure 7 This is an unfolded view of the tongue wing of the second modification. In the tongue wing 5 of the second modification, two first layers 531 are formed in an arrangement along the length of the leg. On each of the two first layers 531, a protrusion 531c protruding forward more than the direct connecting line and a protrusion 531c protruding rearward more than the direct connecting line are formed. Therefore, when multiple protrusions 531c are formed on a single first layer 531, the length of the first layer 531 can be longer than when there is only one protrusion 531c.

[0074] Figure 8 This is an unfolded view of the tongue wing in the third modification. In the tongue wing 5 of the third modification, the protrusion 531c is formed by a curve. Therefore, when the protrusion 531c is formed by a curve, compared with the case where the first layer 531 is formed as a straight line, the first layer 531 is less prone to stretching and contraction, thereby more effectively suppressing the elongation of the second layer 532. Furthermore, the protrusion 531c formed by the curve can also be formed to... Figure 8 The example shown highlights the opposite direction.

[0075] Figure 9This is an unfolded view of the tongue wing in the fourth modification. In the tongue wing 5 of the fourth modification, a first layer 531 is formed in the first wing portion 53. A protrusion 531c protruding forward further than the direct connecting line is formed on the first layer 531. Therefore, when the first wing portion 53 is formed from a single first layer 531, the manufacturing of the first layer 531 can be simplified. In addition, since the extension and retraction direction of the first layer 531 is unidirectional, the extension and retraction of the first layer 531 can be set to any direction. Furthermore, a single first layer 531 can also be formed to protrude in the opposite direction.

[0076] Figure 10 This is an unfolded view of the tongue wing in the fifth modification. In the tongue wing 5 of the fifth modification, a first layer 531 with a protrusion 531c and a second layer 531 extending along the direct connecting line without the protrusion 531c are formed on the first wing portion 53. Therefore, since the first layer 531 with the protrusion 531c extends and retracts in one direction, the extension and retraction of the first layer 531 can be set to any direction. In addition, since the first layer 531 extending along the direct connecting line has a small elongation margin and is not easy to extend and retract, the elongation of the second layer 532 can be more effectively suppressed.

[0077] The various forms disclosed herein are described below.

[0078] (1) A shoe, comprising an upper, a tongue, and a sole, said upper having: an insertion opening for inserting a foot, a front opening extending forward from said insertion opening, and a bottom opening facing the insertion opening.

[0079] The tongue wing has: a shoe tongue disposed on the inside of the shoe upper and blocking at least a portion of the front opening; and a wing portion extending from the shoe tongue toward one side along the width of the foot.

[0080] The sole covers the bottom opening, and in the shoe...

[0081] The wing portion is formed by a layered structure having a first layer and a second layer disposed below the first layer.

[0082] The first layer has less scalability than the second layer.

[0083] The length of the first layer from one end that becomes the tongue side to the other end that becomes the opposite side of the tongue side is longer than the length of the direct connecting line that connects the one end and the other end along the foot width direction.

[0084] (2) The shoe according to (1), wherein the wing portion extends inward from the tongue along the width of the foot.

[0085] (3) The shoe according to (1) or (2), wherein the first layer is formed such that its width along the length of the foot is narrower than the width of the second layer along the length of the foot.

[0086] (4) The shoe according to any one of (1) to (3), wherein the first layer has a protrusion that protrudes further forward or backward than the direct connecting line.

[0087] (5) The shoe according to (4), wherein the protrusion is formed in such a way as a corner having straight lines with different directions of extension connected to each other.

[0088] (6) The shoe according to (5), wherein, when the angle between the direct connecting line and the straight line forming the first layer is set as α, 5°≦α≦45°.

[0089] (7) The shoe according to (5) or (6), wherein the first layer is formed by a shape having a plurality of said corners.

[0090] (8) The shoe according to (4), wherein the protrusion of the first layer is formed by a curve.

[0091] (9) The shoe according to any one of (1) to (8), wherein the first layer is formed in a plurality of arrangements along the length of the foot.

[0092] (10) The shoe according to (9) has two first layers.

[0093] The first layer in the two first layers that is positioned at the front has a first protrusion that projects further forward than the direct connecting line.

[0094] The rearmost of the two first layers has a second protrusion that protrudes further rearward than the direct connecting line.

[0095] (11) The shoe according to (9) has two first layers.

[0096] The first layer in the two first layers that is positioned in front has a first protrusion that protrudes further rearward than the direct connecting line.

[0097] The first layer located at the rear of the two first layers has a second protrusion that protrudes further forward than the direct connecting line.

[0098] (12) The shoe according to (9), wherein the plurality of first layers comprises a first layer having a length from one end to the other end that is longer than the length of the direct connecting line, and a first layer formed by a shape extending along the direct connecting line.

[0099] (13) The shoe according to any one of (1) to (12), wherein the front end of the wing portion opposite to the tongue is joined to the midsole.

[0100] (14) The shoe according to (13), wherein when the distance between the edge of the midsole and the front end of the wing portion is set as A, 1 mm ≦ A ≦ 20 mm.

[0101] (15) The shoe according to (11) further includes a midsole that blocks the opening in the sole.

[0102] The front end of the wing section is joined to the midsole.

[0103] The area where the front end of the wing portion engages with the midsole is the area where at least one of the metatarsals, medial cuneiform bones, and navicular bones of the foot, which are inserted into the upper in the foot length direction, is located.

[0104] (16) The shoe according to any one of (1) to (15), wherein the first layer is disposed on the side opposite to the shoe surface.

Claims

1. A shoe comprising an upper, a tongue, and a sole, the upper having: an insertion opening for inserting a foot, a front opening extending forward from the insertion opening, and a bottom opening facing the insertion opening. The tongue wing has: a shoe tongue disposed on the inside of the shoe upper and blocking at least a portion of the front opening; and a wing portion extending from the shoe tongue toward one side along the width of the foot. The sole covers the bottom opening, and in the shoe... The wing portion is formed by a layered structure having a first layer and a second layer disposed below the first layer. The first layer has less scalability than the second layer. The length of the first layer from one end that becomes the tongue side to the other end that becomes the opposite side of the tongue side is longer than the length of the direct connecting line that connects the one end and the other end along the foot width direction.

2. The shoe according to claim 1, wherein, The wing section extends inward from the tongue along the width of the foot.

3. The shoe according to claim 1, wherein, The first layer is formed such that its width along the length of the foot is narrower than the width of the second layer along the length of the foot.

4. The shoe according to claim 1, wherein, The first layer has a protrusion that extends further forward or backward than the direct connection line.

5. The shoe according to claim 4, wherein, The protrusion is formed in the manner of a corner formed by connecting straight lines with different directions of extension.

6. The shoe according to claim 5, wherein, When the angle between the direct connection line and the straight line forming the first layer is set as α, 5°≦α≦45°.

7. The shoe according to claim 5, wherein, The first layer is formed by a shape having a plurality of said corners.

8. The shoe according to claim 4, wherein, The protrusions in the first layer are formed by curves.

9. The shoe according to claim 1, wherein, The first layer consists of multiple layers arranged along the length of the foot.

10. The shoe according to claim 9, wherein, There are two first layers. The first layer in the two first layers that is positioned at the front has a first protrusion that projects further forward than the direct connecting line. The rearmost of the two first layers has a second protrusion that protrudes further rearward than the direct connecting line.

11. The shoe according to claim 9, wherein, There are two first layers. The first layer in the two first layers that is positioned in front has a first protrusion that protrudes further rearward than the direct connecting line. The first layer located at the rear of the two first layers has a second protrusion that protrudes further forward than the direct connecting line.

12. The shoe according to claim 9, wherein, The plurality of first layers includes a first layer whose length from one end to the other end is longer than the length of the direct connection line, and a first layer formed by a shape extending along the direct connection line.

13. The shoe according to claim 1, wherein, The front end of the wing section, which is opposite to the tongue, is joined to the midsole.

14. The shoe according to claim 13, wherein, When the distance between the edge of the midsole and the front end of the wing portion is set as A, 1 mm ≦ A ≦ 20 mm.

15. The shoe of claim 11, further comprising a midsole that blocks the opening in the sole surface. The front end of the wing section is joined to the midsole. The area where the front end of the wing portion engages with the midsole is the area where at least one of the metatarsals, medial cuneiform bones, and navicular bones of the foot, which are inserted into the upper in the foot length direction, is located.

16. The shoe according to any one of claims 1 to 15, wherein, The first layer is disposed on the side facing the shoe upper.

Images