shoe

Abstract

The present invention provides a shoe that can have both comfort and stability with a good balance. The shoe (100) includes: a sole (10); an upper (20) disposed above the sole and surrounding a foot insertion portion (20a); and a buffer member (30) accommodated in the foot insertion portion. The lower surface (30b) of the buffer member is provided with a convex portion (32) protruding toward a facing surface (16) facing the lower surface, a concave portion (34) adjacent to the convex portion and recessed toward the upper side more than the convex portion, and a peripheral convex portion (36) protruding toward the facing surface more than the convex portion around the concave portion. When the buffer member is subjected to a first specified load F, the peripheral convex portion contacts the facing surface and the convex portion does not contact the facing surface. When the buffer member is subjected to a second specified load F greater than the first load F1, the peripheral convex portion and the convex portion contact the facing surface.

Description

Technical Field

[0001] The invention relates to a pair of shoes. Background Art

[0002] Shoes having a cushioning member such as a midsole between the upper and the sole are known. For example, Patent Document 1 describes a shoe having a removable outer sole, a midsole, and an upper. The lower surface of the midsole of the shoe has a plurality of protrusions that fit into the pocket of the outer sole. The protrusions are separated by slots in a manner that fits into the raised wall provided in the pocket. Furthermore, the shoe is configured to be customized for each user by replacing the midsole, etc.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: U.S. Patent No. 9737109

[0006] Patent Document 2: International Publication No. 2014 / 115284

[0007] Patent Document 3: Japanese Patent Application Publication No. 2012-501717

[0008] Patent Document 4: U.S. Patent Application Publication No. 2017 / 0303631

[0009] Patent Document 5: U.S. Patent Application Publication No. 2017 / 0251761

[0010] Patent Document 6: U.S. Patent Application Publication No. 2018 / 0192737 Summary of the invention

[0011] Problems to be solved by the invention

[0012] The present inventors have obtained the following findings regarding shoes having a cushioning member.

[0013] In order to ensure a good touch when the foot is inserted into the shoe and ensure comfort, it is ideal to make the cushioning member soft and increase the displacement of the cushioning member against the load (hereinafter referred to as "load") borne by the foot. However, if the displacement of the cushioning member against the load is increased, the change in the position of the foot in the shoe during high loads such as running becomes greater, and stability or fit is reduced.

[0014] Furthermore, if the displacement of the cushioning member with respect to the load is reduced in order to improve stability under high load, the foot feel of the cushioning member will be deteriorated, which is disadvantageous in terms of comfort.

[0015] For the footwear described in Patent Document 1, the midsole is configured to be replaceable in order to ensure comfort according to the user's preference, but different characteristics cannot be obtained from a single midsole. Based on these circumstances, the inventors have realized that there is room for improvement in the conventional footwear from the perspective of having a good balance between comfort and stability.

[0016] The present invention is made in view of such a problem, and an object of the present invention is to provide a shoe that can have both comfort and stability in a good balance.

[0017] Technical means of solving problems

[0018] In order to solve the above problem, a shoe of a certain form of the present invention comprises: a sole; an upper disposed above the sole and surrounding a foot insertion portion; and a cushioning member housed in the foot insertion portion. On the lower surface of the cushioning member, there are provided a convex portion protruding toward the facing surface side facing the lower surface, a concave portion adjacent to the convex portion and recessed toward the upper side more than the convex portion, and a peripheral convex portion protruding toward the facing surface side more than the convex portion around the concave portion. When the cushioning member is subjected to a specified first load, the peripheral convex portion contacts the facing surface and the convex portion does not contact the facing surface. When the cushioning member is subjected to a specified second load greater than the first load, the peripheral convex portion and the convex portion contact the facing surface.

[0019] In addition, any combination of the above or inventions in which the structural elements or expressions of the present invention in methods, apparatuses, programs, temporary or non-temporary storage media recording the programs, systems, etc. are mutually replaced are also effective as aspects of the present invention.

[0020] Effects of the Invention

[0021] According to the present invention, a shoe having both comfort and stability in a good balance can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a plan view schematically showing a shoe according to a first embodiment of the present invention.

[0023] Figure 2 To express Figure 1 A plan view of a cushioning member of a shoe.

[0024] Figure 3 To express Figure 2 A side view of a buffer member.

[0025] Figure 4 To express Figure 2 Bottom view of the buffer component.

[0026] Figure 5 To express Figure 2 A graph showing the relationship between load and displacement of a buffer member.

[0027] Figure 6 for Figure 2 A longitudinal cross-sectional view of the buffer member along line AA.

[0028] Figure 7 for Figure 2 Another longitudinal cross-sectional view of the buffer member along line AA.

[0029] Figure 8 To express Figure 2 A plan view of the contours of the cushioning component and the upper.

[0030] Fig. 9 To express Figure 2 A plan view of a change in the profile of the cushioning member.

[0031] Fig.10 To express Figure 2 Another graph of the relationship between load and displacement of a cushioning member.

[0032] Fig.11 AA line cross-sectional view of the buffer member including the deformation restricting portion.

[0033] Fig.12 It is a cross-sectional view taken along line AA of the buffer member including other deformation restricting portions.

[0034] Fig.13 This is a cross-sectional view taken along line AA of the cushioning member having different widths on the inner leg side and the outer leg side of the body.

[0035] Fig.14 This is a cross-sectional view taken along line AA of a cushioning member having different friction coefficients on the inner leg side and the outer leg side of the main body.

[0036] Fig.15 It is a perspective view schematically showing a shoe according to a second embodiment of the present invention.

[0037] Fig.16 To express Fig.15 view of shoes.

[0038] Fig.17 To express Fig.15 A plan view of the shoes.

[0039] Fig.18 for Fig.15 BB line cross-section of the shoe.

[0040] Fig.19 To express Fig.15 A side view of another shape example of the linkage member of the shoe.

[0041] Fig. 20 To express Fig.15A side view of another shape example of the linkage member of the shoe.

[0042] Fig.21 It is a plan view showing a buffer member according to a first modification.

[0043] Fig. 22 It is a plan view showing a first shape example of a buffer member according to a modified example.

[0044] Fig.23 It is a plan view showing a second shape example of the buffer member according to the modification.

[0045] Fig.24 It is a plan view showing a third shape example of the buffer member according to the modification.

[0046] Fig.25 It is a plan view showing a fourth shape example of the buffer member according to the modification.

[0047] Fig.26 This is a longitudinal cross-sectional view along the line AA of a buffer member according to a modification.

[0048] Fig. 27 for Fig.26 Another longitudinal cross-sectional view of the buffer member along line AA.

[0049] Fig.28 This is a cross-sectional view of the shoe along line BB of a modified example.

[0050] [Explanation of Symbols]

[0051] 10: Sole

[0052] 10b, 30e: upper surface

[0053] 16: Facing surface

[0054] 16p: protrusion

[0055] 18: Deformation limiting part

[0056] 20: Upper

[0057] 20a: Foot insertion part

[0058] 20b: Wearing mouth

[0059] 20c: Central opening

[0060] 20h: Rivet eyes

[0061] 30: Buffer component

[0062] 30b, 32d: lower surface

[0063] 30h, 30j: Edge ridges

[0064] 30p: surrounding wall

[0065] 32: convex part

[0066] 32p, 34d, 35e, 35j: Partial

[0067] 33: Movable part

[0068] 33e: Outer surface

[0069] 34: concave part

[0070] 35: Body part

[0071] 36: Peripheral convex part

[0072] 36d: Recessed portion on the lower surface

[0073] 36m: Butt joint

[0074] 37: Containment Division

[0075] 37h: Opening

[0076] 37j: Inner circumference

[0077] 52: Linking components

[0078] 52d: Side of the sole

[0079] 52f: Fixed part

[0080] 52j: front part

[0081] 52p: Extension

[0082] 70: Tongue

[0083] 100, 200, 300: Shoes

[0084] D: Displacement

[0085] E1, E1(a), E1(b), E2, E2(a), E2(b): Elongation

[0086] F: Weight

[0087] F1: First load (low load)

[0088] F2: Second load (high load)

[0089] F3: The third load

[0090] Ha: upper and lower thickness

[0091] Hd, Hp: Up and down distance

[0092] La: Center line in width direction

[0093] P: force

[0094] S1, S1(a), S1(b), S2, S2(a), S2(b), S32: Clearance

[0095] T: Tension

[0096] Wa: Width size

[0097] Wce, Wcj: size

[0098] g1, g2, g3, g4: curve

[0099] μe, μj: friction coefficient DETAILED DESCRIPTION

[0100] Hereinafter, based on the preferred embodiment, reference will be made to the attached Figure 1 The present invention is described while the following description is given. In the embodiments and modified examples, the same or equivalent structural elements and components are marked with the same symbols, and repeated descriptions are appropriately omitted. In addition, the sizes of the components in each drawing are appropriately enlarged or reduced for easy understanding. In addition, in each drawing, a part of the components that are not important in describing the embodiments is omitted.

[0101] Furthermore, terms including ordinal numbers such as first and second are used to describe a variety of structural elements, but these terms are only used to distinguish one structural element from other structural elements, and the structural elements are not limited by the terms.

[0102] [First embodiment]

[0103] Hereinafter, the structure of a shoe 100 according to a first embodiment of the present invention will be described with reference to the drawings. Figure 1 FIG. 1 is a plan view schematically showing the shoe 100 according to the first embodiment. Figure 1 In the following figures, unless otherwise specified, the shoe for the right foot is shown, but the description of this specification also can be applied to the shoe for the left foot in the same manner. In addition, the description of shoelace is omitted in the following figures.

[0104] The shoe 100 of this embodiment can be used as a walking or strolling shoe, a safety shoe, a tennis or basketball shoe, etc., and its use is not limited. The shoe 100 has a sole 10, an upper 20, and a buffer member 30. The sole 10 is a part used to contact the ground. The upper 20 has a foot insertion portion 20a, and this foot insertion portion 20a surrounds an internal space for accommodating a foot. The upper 20 is fixed to the top of the sole 10 by bonding or other methods. The buffer member 30 is accommodated in the foot insertion portion 20a. These are described in detail below.

[0105] (vamp)

[0106] like Figure 1 As shown, the direction along the center line La in the width direction of the upper 20 is called the "front-back direction". Therefore, the width direction is orthogonal to the center line La. The direction along the center line La toward the toe side is called the "front side" or "front", and the opposite side is called the "rear side" or "rear". Moreover, the direction from the outer foot side toward the inner foot side in the width direction is called the "inside" or "inside", and the opposite direction is called the "outside" or "outside". Moreover, the upper side of the state in which the shoe 100 is placed on a horizontal plane (hereinafter referred to as the "horizontal state") is called the "upper side" or "above", and the opposite side is called the "lower side" or "below". Moreover, the direction along the vertical direction in the horizontal state is called the "upper and lower directions".

[0107] Furthermore, in the upper 20, the portion corresponding to the midfoot bone in the front-to-back direction is referred to as the midfoot portion. Furthermore, the portion of the upper 20 that is closer to the front side than the midfoot portion in the front-to-back direction is referred to as the forefoot portion, and the portion that is closer to the back side than the midfoot portion is referred to as the rearfoot portion. The forefoot portion is the portion that roughly corresponds to the toe bones, and the rearfoot portion is the portion that roughly corresponds to the calcaneus. The midfoot portion is the area that is roughly 30% to 80% away from the top in the range parallel to the straight line that is orthogonal to the center line La when the front-to-back length of the shoe 100 is set to 100%. Similarly, the forefoot portion is the area that is roughly 0% to 30% away from the top, and the rearfoot portion is the area that is roughly 80% to 100% away from the top.

[0108] A wearing opening 20b for inserting a foot is provided on the rear side of the upper 20. A central opening 20c is provided forward from the wearing opening 20b of the upper 20. An eyelet 20h for passing a shoelace is provided at the edge of the central opening 20c of the upper 20. A tongue 70 is provided inside the central opening 20c. In addition, the central opening 20c is not a necessary structure, and the upper 20 may also be a so-called monosock structure. Moreover, the eyelet 20h and the tongue 70 are not required.

[0109] (Buffering member)

[0110] The cushioning member 30 will be described. The cushioning member 30 is formed of a flexible material, and when the wearer wears the shoe 100, it is interposed between the foot and the sole 10 to mitigate the impact applied to the foot. The cushioning member 30 functions as an insole (insole). Figure 2 is a plan view of the buffer member 30 . Figure 3 It is a side view of the buffer member 30 . Figure 4 30 is a bottom view of the buffer member 30.

[0111] The present inventors studied the cushioning member 30 from the viewpoint of achieving both comfort and stability in a good balance, and obtained the following findings. Figure 5This is a graph showing the relationship between the load and displacement of the buffer member 30. In this graph, the horizontal axis represents the displacement D, and the vertical axis represents the load F. The scales of the horizontal axis and the vertical axis represent the relative level relative to the specified reference value. Curve g1 and curve g2 represent the load F relative to the displacement D (hereinafter referred to as "displacement slope"). Curve g1 represents a case where the displacement slope is greater than curve g2 and is softer, and curve g2 represents a case where the displacement slope is less than curve g1 and is harder.

[0112] In order to make the foot feel good when the foot is inserted, it is ideal to have a large and soft displacement slope as shown in curve g1. However, when the displacement slope is large, the displacement D becomes excessive when the load is high, such as when walking, and the stability or durability is reduced. Therefore, when the load is high, it is ideal to have a small and hard displacement slope as shown in curve g2. Based on these circumstances, the inventors and others thought of a structure in which the displacement slope changes according to the size of the load F borne by the buffer member 30 (refer to curve g3). It is also known that when the load F is large, the displacement slope changes by increasing the contact area between the buffer member 30 and the opposing surface 16 facing its lower surface. Below, a structural example for realizing the characteristics shown in curve g3 is described.

[0113] Back to Figure 2 to Figure 4 .like Figure 2 , Figure 3 As shown in the figure, edge raised portions 30h and 30j are provided on the upper surface 30e of the cushioning member 30. The edge raised portions 30h and 30j are raised from the upper surface 30e from the inner foot side to the outer foot side in a manner surrounding the periphery of the heel. The top line of the edge raised portion 30h on the inner foot side is set at a higher position than the top line of the edge raised portion 30j on the outer foot side. In addition, the top line of the edge raised portion 30j may also be set at a higher position than the top line of the edge raised portion 30h.

[0114] like Figure 4 As shown, a convex portion 32, a concave portion 34 and a peripheral convex portion 36 are provided on the lower surface 30b of the buffer member 30. The convex portion 32 protrudes toward the facing surface 16 side facing the lower surface 30b. In this embodiment, the facing surface 16 is exemplified by the upper surface 10b of the sole 10. When an insole such as an insole is interposed between the sole 10 and the buffer member 30, the facing surface 16 is the upper surface of the insole.

[0115] The configuration of the convex portion 32 is not limited, and the convex portion 32 of the present embodiment is configured at a position corresponding to the heel. The shape of the convex portion 32 is not limited, and the convex portion 32 of the present embodiment is an island-shaped portion of an elliptical plane shape having a front-back dimension greater than the width dimension. In addition, the ellipse of this specification also includes shapes similar to ellipses such as oblongs in addition to ellipses. The recess 34 is formed adjacent to the convex portion 32, and is a part that is more recessed toward the side of the upper 20 than the convex portion 32. The recess 34 is between the convex portion 32 and the peripheral convex portion 36 in the width direction. The recess 34 of the present embodiment is formed into a peripheral shape surrounding the convex portion 32 when viewed from a plane. The peripheral convex portion 36 is around the recess 34, and is more protruding toward the facing surface 16 side than the convex portion 32.

[0116] In this embodiment, in order to change the displacement slope, the contact area between the buffer member 30 and the facing surface 16 (upper surface 10b) is changed according to the load F. Specifically, when the buffer member 30 is subjected to a predetermined first load F1 (low load), the peripheral convex portion 36 contacts the facing surface 16, and the convex portion 32 does not contact the facing surface 16. When the buffer member 30 is subjected to a predetermined second load F2 (high load), the peripheral convex portion 36 and the convex portion 32 contact the facing surface 16. When the convex portion 32 contacts the facing surface 16, the contact area increases accordingly, and the load F per unit area decreases, thereby changing the displacement slope.

[0117] For example, the first load F1 may be set based on the load F borne by the cushioning member 30 from the foot when the foot is extended or walking slowly, and the second load F2 may be set based on the load F borne by the cushioning member 30 from the foot when walking. The second load F2 is greater than the first load F1.

[0118] See also Figure 6 , Figure 7 . Figure 6 , Figure 7 It is a longitudinal cross-sectional view of the buffer member 30 along the line AA, and shows a cross section at the center of the convex portion 32 in the front-rear direction. Figure 6 It shows the state where the buffer member 30 bears the first load F1. Figure 7 The buffer member 30 is shown in a state where the second load F2 is applied. In this embodiment, the buffer member 30 is not bonded to the facing surface 16 and is movable in the foot insertion portion 20a. Therefore, when the buffer member 30 is applied with the load F, it deforms in the width direction and increases in the width direction.

[0119] Figure 6 In the case of the low load shown, the peripheral protrusion 36 contacts the facing surface 16, and the lower surface 32d of the protrusion 32 is separated from the facing surface 16 by a gap S32 and moves upward. Figure 6As the load F increases, the peripheral protrusion 36 maintains the state of contacting the facing surface 16 and deforms in a manner of expanding in the width direction. At the same time, the protrusion 32 moves downward, and the gap S32 gradually decreases according to the load F. If the load F exceeds the threshold, the gap S32 disappears. At this time, the lower surface 32d of the protrusion 32 contacts the facing surface 16, and the protrusion 32 deforms in a manner of being flattened in the vertical direction. If the load F increases further, the contact area between the lower surface of the protrusion 32 and the facing surface 16 increases, reaching Figure 7 That is, Figure 6 Compared to the low load case shown, Figure 7 In the case of the high load shown, the contact area of ​​the buffer member 30 with the facing surface 16 increases, the load F per unit area decreases, and the displacement slope decreases.

[0120] If the front-to-back dimension of the convex portion 32 is small, the front-to-back range of the displacement slope change can be narrowed. Therefore, it is ideal that the front-to-back dimension of the convex portion 32 is large. Therefore, the convex portion 32 of this embodiment has an elliptical planar shape in which the front-to-back dimension is larger than the width dimension.

[0121] In addition, the peripheral protrusion 36 may not contact the facing surface 16 in the no-weight state where the foot is not inserted, but the present embodiment is configured so that the peripheral protrusion 36 contacts the facing surface 16 even in the no-weight state.

[0122] The convex portion 32 is preferably able to smoothly move downward from a low load state to a high load state. Therefore, the cushioning member 30 of this embodiment includes a main body portion 35 including a peripheral convex portion 36, and a movable portion 33 including the convex portion 32. By separating the main body portion 35 and the movable portion 33, the convex portion 32 can be easily moved.

[0123] The main body 35 has an outer shape along the foot insertion portion 20a when viewed in a plan view (see also Figure 2 , Figure 3 ). In the middle part of the width direction of the main body 35, there is a receiving portion 37 for receiving at least a part of the movable part 33. The receiving portion 37 of the present embodiment has a shape that can roughly receive the entire movable part 33. The receiving portion 37 of the present example has an elliptical planar shape in which the front-to-back dimension is larger than the width dimension. In the present embodiment, in order to slow down the movement of the movable part 33, the inner peripheral surface 37j of the receiving portion 37 is formed into a tapered shape that narrows on the lower side. When a downward load F is applied to the buffer member 30, the movable part 33 slides in the receiving portion 37 of the main body 35 and moves downward. The receiving portion 37 has an opening portion 37h provided in the middle part of the width direction of the main body 35.

[0124] The outer peripheral surface 33e of the movable part 33 has a shape corresponding to the inner peripheral surface 37j. That is, the outer peripheral surface 33e of the movable part 33 has an elliptical plane shape whose front-to-back dimension is larger than the width dimension. The outer peripheral surface 33e of the movable part 33 has an elliptical frustum shape along the inner peripheral surface 37j. Figure 6 As shown, the vertical dimension of the movable portion 33 is smaller than the vertical dimension of the peripheral protrusion 36 , and has a size such that the outer peripheral surface 33 e is caught in the middle of the receiving portion 37 .

[0125] The planar shape of the buffer member 30 will be described. Figure 8 3 is a plan view showing the relationship between the peripheral wall surface 30p of the buffer member 30 and the foot insertion portion 20a of the upper 20. In addition, the peripheral wall surface 30p is a side surface along the outer periphery of the buffer member 30. If the width of the buffer member 30 is too large, it is difficult to insert the buffer member 30 into the upper 20. Therefore, the gap S1 in the width direction between the peripheral wall surface 30p of the buffer member 30 and the foot insertion portion 20a of the upper 20 is configured to be larger than the gap S2 in the front-to-back direction between the buffer member 30 and the upper 20. In addition, the gap S1 is the sum of the gaps S1(a) and S1(b) on both sides in the width direction, and the gap S2 is the sum of the gaps S2(a) and S2(b) on both sides in the front-to-back direction.

[0126] The extension of the buffer member 30 in the planar direction will be described. Fig. 9 1 is a plan view showing the planar profile of the buffer member 30 when bearing a load. In this figure, the dotted line shows the planar profile when there is no load, and the solid line shows the planar profile when bearing a second load F2. In order to disperse the load F in the width direction, the buffer member 30 of this embodiment is configured so that the elongation E1 in the width direction when bearing the load F is greater than the elongation E2 in the front-to-back direction. In addition, the elongation E1 is the sum of the elongations E1(a) and E1(b) on both sides in the width direction, and the elongation E2 is the sum of the elongations E2(a) and E2(b) on both sides in the front-to-back direction.

[0127] Reference Figure 6 , Figure 7 . The main body 35 and the movable part 33 can be formed of various materials having the required properties. As an example, the main body 35 can be formed of foamed resin foam such as EVA resin (ethylene vinyl acetate copolymer) and TPU resin (thermoplastic polyurethane). The movable part 33 can be formed of the same material as the main body 35, or a different material. The main body 35 and the movable part 33 can be respectively composed of a single component or a plurality of components. These can be separate bodies, or foam materials of different hardness such as colloid (GEL) materials can be provided inside or on the surface. At this time, the touch or cushioning properties of the foot can be changed.

[0128] The hardness of the cushioning member 30 is described. The hardness of the material of the main body 35 and the hardness of the material of the movable part 33 may be the same or different. In the present embodiment, the hardness of the material of the movable part 33 is higher than the hardness of the material of the main body 35. The main body 35 is soft, so the foot touch is good when the weight is light, and the movable part 33 is hard, so the rigidity is high when the weight is heavy, and it is easy to ensure stability. In addition, in the case where the dedicated area of ​​the movable part 33 is large, in order to obtain cushioning properties, the movable part 33 may also be formed to be softer than the main body 35. Moreover, in order to obtain the desired characteristics, the main body 35 may also be formed to be harder than the movable part 33.

[0129] The hardness of the material of the main body 35 may be uniform as a whole or may differ from part to part. In particular, the hardness of the material may be different between the part 35e on the outer foot side and the part 35j on the inner foot side in the main body 35. In the present embodiment, the hardness of the material of the part 35j on the inner foot side is higher than the hardness of the material of the part 35e on the outer foot side. When a high load is applied to the inner foot side during exercise, deformation can be suppressed, thereby making it easy to ensure stability. In addition, in the case of a court sports shoe such as one used to apply a load to the outer side, the part 35e may be harder than the part 35j.

[0130] (Deformation restriction part)

[0131] Reference Figure 10 to Figure 12 The deformation restricting portion 18 will be described. When a high load is applied, if the buffer member 30 is excessively deformed, there is a possibility that stability will be reduced. Therefore, in this embodiment, the deformation restricting portion 18 is provided to restrict deformation of the buffer member 30 by a predetermined amount or more.

[0132] Fig.10 is a graph showing the relationship between the load F and the displacement D of the buffer member 30 when the deformation restricting portion 18 is provided, corresponding to Figure 5 . In this figure, curve g3 represents the case without the deformation limiting portion 18, and curve g4 represents the case with the deformation limiting portion 18. In the case with the deformation limiting portion 18, if the third load F3 is exceeded, the displacement D is suppressed and the displacement slope becomes smaller. The third load F3 is set to be larger than the second load F2, and the displacement slope changes in three stages according to the load F. In this structure, stability in the area where the load F is above the third load F3 can be ensured. The third load F3 can be set based on the load F that the cushioning member 30 bears from the foot, especially during high-intensity exercise.

[0133] The structure of the deformation restricting portion 18 is not limited. For example, the deformation restricting portion 18 may be provided at a portion facing the lower surface 30 b or the peripheral wall surface 30 p of the buffer member 30 . Fig.11 AA line cross-sectional view of the buffer member 30 including the deformation restricting portion 18, corresponding to Figure 6 This figure shows the state of bearing the third load F3. Fig.11 In the example of , the deformation limiting portion 18 includes a protrusion 16p protruding from the facing surface 16, and a contact portion 36m provided on the buffer member 30. The contact portion 36m of this example is an inner wall in the width direction of a lower surface recess 36d provided on the lower surface 30b (lower surface of the peripheral protrusion 36) of the buffer member 30. If the buffer member 30 is subjected to the third load F3, the contact portion 36m contacts the protrusion 16p, limiting the deformation of the peripheral protrusion 36 in the width direction.

[0134] Fig.12 AA line cross-sectional view of the buffer member including other deformation restricting portions 18, corresponding to Fig.11 . Fig.12 In the example of , the contact portion 36m is provided on the side surface of the peripheral protrusion 36 (the peripheral wall surface 30p of the buffer member 30), and the protrusion 16p is arranged at a position deviated from the lower surface 30b (the lower surface of the peripheral protrusion 36) of the buffer member 30. When the buffer member 30 is subjected to the third load F3, the contact portion 36m provided on the side surface of the peripheral protrusion 36 abuts against the protrusion 16p, and the deformation of the peripheral protrusion 36 in the width direction is restricted. Fig.11 , Fig.12 In the example shown in FIG. 1 , two protrusions 16 p are provided. However, one protrusion 16 p may be provided, or three or more protrusions 16 p may be provided.

[0135] Furthermore, the deformation restricting portion 18 may be formed by increasing the friction coefficient μ of the lower surface 30b (lower surface of the peripheral protrusion 36) or the facing surface 16 of the buffer member 30. For example, increasing the friction coefficient μ restricts the movement of the peripheral protrusion 36 and the deformation of the buffer member 30.

[0136] The friction coefficient μ can be changed by changing the concavo-convexity or surface roughness of the lower surface of the peripheral protrusion 36. For example, in order to change the surface roughness, the lower surface of the peripheral protrusion 36 can also be subjected to mirror processing, embossing, texturing, etc. In addition, the friction coefficient μ can also be changed by attaching components with different friction coefficients to the surface of the main body 35. In this case, if a low-friction material is attached, the friction coefficient μ can be reduced, and if a high-friction material is attached, the friction coefficient μ can be increased. In addition, the friction coefficient μ can also be changed by applying a substance that can change the lubricity to the surface of the main body 35.

[0137] Reference Fig.13 The width dimension of the outer leg side portion 35e in contact with the facing surface 16 and the width dimension of the inner leg side portion 35j in contact with the facing surface 16 may be the same or different. Fig.13 The width of the cushioning member 30 is different between the inner leg side and the outer leg side of the main body 35, and the width is shown along the line AA. Figure 6 .exist Fig.13 When viewed from the cross section, the dimension Wcj of the inner leg side of the main body 35 is larger than the dimension Wce of the outer leg side. In this example, the dimension Wcj is larger than the dimension Wce, so the contact area between the facing surface 16 and the peripheral protrusion 36 becomes larger and the friction force also becomes larger, making it difficult to move. As a result, the sinking of the inner side is limited, and it is easy to ensure stability. In addition, in order to balance the inner and outer sides of the load when the load is high, the dimension Wce can also be larger than the dimension Wcj.

[0138] Reference Fig.14 The friction coefficient μ between the main body 35 and the facing surface 16 may be uniform overall or may be different in some parts. If the friction coefficient μ is increased locally, the movement and deformation of the part can be reduced. Fig.14 The friction coefficient μ is a cross-sectional view of the cushioning member 30 along the line AA, which is different between the inner leg side and the outer leg side of the main body 35, corresponding to Figure 6 .

[0139] Fig.14 In the example shown, the friction coefficient μj between the inner foot side portion 35j and the facing surface 16 is higher than the friction coefficient μe between the outer foot side portion 35e and the facing surface 16. In this case, when a high load is applied to the inner foot side during exercise, deformation can be suppressed, so that stability can be easily ensured. In addition, in order to balance the load inside and outside when the load is high, the friction coefficient μe can also be higher than the friction coefficient μj.

[0140] The features of the shoe 100 of the first embodiment constructed as described above are described. The shoe 100 of the first embodiment includes: a sole 10; an upper 20 provided above the sole 10 and surrounding a foot insertion portion 20a; and a cushioning member 30 accommodated in the foot insertion portion 20a. The lower surface 30b of the cushioning member 30 is provided with a convex portion 32 protruding toward the facing surface 16 side facing the lower surface 30b, a concave portion 34 adjacent to the convex portion 32 and recessed toward the upper 20 side more than the convex portion 32, and a peripheral convex portion 36 protruding toward the facing surface 16 side more than the convex portion 32 around the concave portion 34. When the cushioning member 30 is subjected to a predetermined first load F1, the peripheral convex portion 36 contacts the facing surface 16, and the convex portion 32 does not contact the facing surface 16. When the cushioning member 30 is subjected to a predetermined second load F2 greater than the first load F1, the peripheral convex portion 36 and the convex portion 32 contact the facing surface 16.

[0141] According to the structure, when the convex portion 32 does not contact the opposing surface 16 under a low load, the displacement of the buffer member 30 under the load can be increased, thereby improving the foot touch. When the convex portion 32 contacts the opposing surface 16 under a high load, the displacement of the buffer member 30 under the load can be reduced, thereby ensuring stability.

[0142] The widthwise gap S1 between the peripheral wall surface 30p of the cushioning member 30 and the upper 20 is larger than the front-rearward gap S2 between the peripheral wall surface 30p and the upper 20. At this time, the widthwise gap S1 is large, so the cushioning member 30 can be easily inserted into the foot insertion portion 20a.

[0143] The concave portion 34 is located between the convex portion 32 and the peripheral convex portion 36 in the width direction, and the buffer member 30 has a greater width extension than the front-rear extension when receiving a downward load. In this case, the load can be dispersed in the width direction when receiving a load, thereby adjusting stability and comfort.

[0144] A deformation restricting portion 18 is provided for restricting deformation of the buffer member 30 to a predetermined amount or more. In this case, excessive deformation can be restricted. Further stability under high load can be ensured by multi-stage (three-stage) changes.

[0145] The deformation restricting portion 18 is provided at a portion facing the lower surface 30b or the outer peripheral side surface of the buffer member 30. In this case, excessive deformation can be restricted with a simple structure.

[0146] The deformation restricting portion 18 includes a protruding portion 16p protruding from the facing surface 16. In this case, excessive deformation can be restricted with a simple structure.

[0147] The cushioning member 30 includes a main body 35 including a peripheral convex portion 36 and a movable portion 33 including a convex portion 32. The main body 35 has an outer shape along the foot insertion portion 20a and is provided with a receiving portion 37 for receiving at least a portion of the movable portion 33. When a downward load is applied to the cushioning member 30, the movable portion 33 moves downward relative to the main body 35. At this time, by separating the movable portion 33, the movable portion 33 can smoothly move downward when a load is applied. By separating, each can be manufactured under appropriate conditions.

[0148] The housing portion 37 includes an opening portion 37h provided in the middle portion in the width direction of the main body portion 35. At this time, by including the opening portion 37h, the movable portion 33 can move downward in the opening portion 37h.

[0149] The inner peripheral surface 37j of the housing portion 37 is formed in a tapered shape. At this time, by adjusting the tapered shape, it is easy to adjust the displacement to the load to a desired characteristic.

[0150] The outer peripheral surface of the movable portion 33 has a shape along the inner peripheral surface 37j. At this time, the movable portion 33 can move smoothly.

[0151] When the first load F1 is applied to the cushioning member 30, the movable portion 33 is located upwardly away from the facing surface 16. At this time, under a low load, the displacement for the load can be increased to improve the foot touch when the foot is inserted.

[0152] The movable part 33 has an elliptical planar shape in which the front-back dimension is larger than the width dimension. In this case, the front-back dimension is large, so the load-displacement characteristic can be adjusted in a wide range in the front-back direction.

[0153] The hardness of the material of the movable portion 33 is different from the hardness of the material of the main body 35. In this case, the main body 35 and the movable portion 33 can be respectively formed of materials of appropriate hardness, so that the desired load displacement characteristics can be easily realized.

[0154] The hardness of the material of the main body 35 is different between the inner leg portion 35j and the outer leg portion 35e in the width direction across the movable portion 33. In this case, the inner leg portion and the outer leg portion can be each formed of a material with an appropriate hardness, so that the desired load displacement characteristics can be easily achieved.

[0155] The area of ​​the main body 35 in contact with the facing surface 16 is different between the inner leg portion 35j and the outer leg portion 35e across the movable portion 33. At this time, the respective areas can be set according to the inner and outer balance of the load under high load, so that the desired load displacement characteristics can be easily achieved.

[0156] The friction coefficient of the main body 35 with the facing surface 16 is different between the portion 35j on the inner leg side and the portion 35e on the outer leg side across the movable portion 33. At this time, the deformation characteristics can be adjusted by setting the respective friction coefficients in accordance with the internal and external balance of the load under high load, so that the desired load displacement characteristics can be easily achieved.

[0157] [Second embodiment]

[0158] Reference Figures 15 to 20 , the structure of the shoe 200 of the second embodiment of the present invention is described. In the drawings and description of the second embodiment, the same symbols are marked for the same or equivalent structural elements and components as those of the first embodiment. The description repeated with the first embodiment is appropriately omitted, and the structure different from the first embodiment is described in detail. Fig.15 It is a perspective view schematically showing a shoe 200 according to the second embodiment. Fig.16 2 is a side view of the shoe 200. Fig.17 2 is a plan view showing a shoe 200 . Fig.18 for Fig.17 BB line cross-section diagram. Fig.15 , Fig.16 The tongue is omitted.

[0159] (Linking member)

[0160] The shoe 200 of this embodiment is different from the shoe 100 of the first embodiment in that it includes a linkage member 52, and the other structures are the same. Therefore, the linkage member 52 will be described in detail. If the buffer member 30 is deformed by the load F, the gap between the upper 20 and the instep may be enlarged and the fit may be reduced. Therefore, the shoe 200 of this embodiment includes: a linkage member 52, after the buffer member 30 is deformed by the load F, the upper 20 is deformed in conjunction with the deformation.

[0161] The linkage member 52 of this embodiment has a sole side portion 52d, a protruding portion 52p and a fixed portion 52f. The sole side portion 52d is a portion extending in a substantially width direction between the sole and the upper surface 30e of the cushioning member 30. The protruding portion 52p is a portion extending in a substantially up-down direction from both ends of the upper surface 30e in the width direction. The fixed portion 52f is a portion provided at the upper end of the protruding portion 52p and fixed to the vamp 20. The fixed portion 52f is fixed to the region on both sides of the vamp 20 clamping the central opening 20c in the width direction by sewing or the like. The fixed portion 52f can also be fixed integrally with the vamp 20 by a rivet eye 20h. As an example, the sole side portion 52d, the protruding portion 52p and the fixed portion 52f are integrally formed by a flexible sheet material such as cloth.

[0162] like Fig.17 As shown in the figure, the linkage member 52 of this embodiment is arranged at a position avoiding the wearing opening 20b of the upper 20. Moreover, the extension portion 52p of the linkage member 52 is fixed to the upper 20 via the fixing portion 52f at the front side of the wearing opening 20b. At this time, the cushioning member 30 can be easily inserted into the foot insertion portion 20a from the wearing opening 20b, or can be easily removed from the wearing opening 20b.

[0163] like Fig.18 As shown, the side portion 52d of the sole is arranged in contact with or close to the upper surface 30e of the buffer member 30. If the weight F is applied to the sole, the downward tension T acts on the extension portion 52p and the upper surface 30e of the buffer member 30. If the tension T acts on the extension portion 52p, the downward force P acts on the fixing portion 52f and the upper 20 in conjunction with the extension portion 52p. As a result, the upper 20 is pulled downward, and the expansion of the gap between the upper 20 and the instep is alleviated. That is, the upper 20 and the linkage member 52 sink together with the buffer member 30 by interposing the sole and the upper surface 30e of the buffer member 30. According to the mechanism, the upper 20 and the buffer member 30 fit the foot.

[0164] From the viewpoint of ensuring support, the interlocking member 52 may have a tubular portion or a bag-shaped portion that wraps the foot. In this case, when the cushioning member 30 is deformed, the shoe upper 20 is reliably pulled downward.

[0165] Fig.19 , Fig. 20 It is a side view showing another shape example of the interlocking member 52 . Fig.19 The linkage member 52 has a rear portion 52h extending rearward from the midfoot portion. Fig.16 The linkage member 52 is different, and the other structures are the same. The rear portion 52h can also extend to the area corresponding to the heel. The upper part of the rear portion 52h is fixed to the inner side of the vamp 20 by sewing or the like. In this example, the rear end portion of the rear portion 52h is formed into a cylindrical shape.

[0166] Fig. 20 In the example of FIG. 1 , the linkage member 52 has a front portion 52j extending forward from the midfoot portion. Fig.16 The linkage member 52 is different, and the other structures are the same. The front portion 52j may also extend to the area corresponding to the toe. The front portion 52j may also be formed into a bag or a tube that wraps the front foot of the inserted foot. In this example, the front of the front portion 52j is formed into a bag that is closed. The upper part of the front portion 52j may also be fixed to the inner side of the vamp 20, but it is not fixed in this example.

[0167] The shoe 200 of this embodiment has the same effect as the first embodiment, and pulls the upper 20 downward in conjunction with the deformation of the cushioning member 30, so that the gap between the upper 20 and the instep is not excessively enlarged when the load is high, and the fit is improved. In addition, the comfort when the load is low can be maintained.

[0168] The examples of the embodiments of the present invention are described in detail above. The embodiments described above are only specific examples for implementing the present invention. The contents of the embodiments do not limit the technical scope of the present invention, and various design changes such as changes, additions, and deletions of structural elements can be made without departing from the scope of the inventive concept specified in the claims. In the embodiments described above, the contents that can be subjected to such design changes are explained by marking expressions such as "in the embodiments" and "in the embodiments", but this does not mean that design changes to contents that do not have such expressions are not allowed. Moreover, the shadows attached to the drawings do not limit the material of the objects with shadows.

[0169] [Modifications]

[0170] In the following, a modification example is described. In the drawings and description of the modification example, the same reference numerals are given to the same or equivalent components and members as those in the embodiment. The descriptions that overlap with the embodiment are appropriately omitted, and the structures that are different from the embodiment are mainly described.

[0171] [First Modification]

[0172] In the description of the first embodiment, an example in which the cushioning member 30 includes a single movable portion 33 is shown, but the present invention is not limited thereto. The cushioning member 30 may include a plurality of movable portions 33 . Fig.21 is a plan view of the buffer member 30 of the first modified example, corresponding to Figure 2 . Fig.21 In the cushioning member 30, a plurality of movable parts 33 are provided separately in the front-back direction. The cushioning member 30 of this example is provided with movable parts 33 that are elliptical in plan view at the part corresponding to the heel and the part corresponding to the toe. The movable part 33 is not limited to the above position, and can also be arranged at a position where the load F is easily applied. In addition, in order to cope with the front-back balance of the load when the load is high, the movable part 33 can also be provided at either the part corresponding to the heel or the part corresponding to the toe.

[0173] Furthermore, the size or deformation characteristics of the movable portion 33 can be adjusted in the front foot and rear foot. In this case, for example, if the rear foot is set to be easily deformable and the front foot is set to be highly repelling, the rear foot can be used to provide cushioning properties and the front foot can be used to provide repelling force when walking, so that a shoe suitable for runners who land on their heels can be provided. Furthermore, by having a plurality of movable portions 33, the size or deformation characteristics of the movable portion 33 can be changed according to the wearer's landing pattern.

[0174] [Other Modifications]

[0175] In the description of the first embodiment, an example in which the protrusion 16p is provided as the deformation restricting portion 18 is shown, but the present invention is not limited thereto. For example, instead of the protrusion 16p, a sheet member that can increase the friction between the main body 35 and the movable portion 33 may be inserted between them. For example, a tape having a high friction coefficient may be attached to the surface of one of them.

[0176] In the description of the first embodiment, an example in which the movable portion 33 has an elliptical planar shape is shown, but the present invention is not limited thereto, and the movable portion 33 may have various shapes according to required characteristics. Figure 22 to Figure 25 1 to 4 are plan views showing the first to fourth shape examples of the buffer member 30, corresponding to Figure 2 . Fig. 22 In the cushioning member 30 of the first shape example shown, the movable portion 33 has a planar shape extending frontward and rearward from the portion corresponding to the heel to the portion corresponding to the midfoot. In this case, for example, if the portion corresponding to the heel is set to be easily deformable and the midfoot is set to have high repulsion, the portion corresponding to the heel can be used to provide cushioning properties when walking, and the midfoot can be used to provide repulsion, so that a shoe suitable for runners who land on their heels can be provided. In addition, by having the movable portion 33 of the above shape, the size or deformation characteristics of the movable portion 33 can be changed according to the wearer's landing pattern.

[0177] Fig.23In the second shape example of the cushioning member 30 shown, the movable portion 33 has a planar shape extending forward and backward from the portion corresponding to the heel to the portion corresponding to the toe. In this way, the movable portion 33 can also have various front-to-back lengths from a portion to the entire region of the cushioning member 30 according to the required characteristics. In addition, in the case of the movable portion 33 having the above shape, when comfort is emphasized rather than sports use, the movable portion 33 can be made soft to provide a shoe with a large amount of deformation.

[0178] Fig.24 In the third example of the shape of the cushioning member 30 shown, the movable portion 33 has a planar shape extending frontward and rearward from the portion corresponding to the heel to the portion corresponding to the midfoot. In this example, the portion corresponding to the midfoot of the movable portion 33 has a shape close to one side (for example, the outer foot side) in the width direction. In the case of the movable portion 33 having the above shape, by making the movable portion 33 soft and the main body 35 hard, it is possible to set a shoe with a high effect of suppressing pronation.

[0179] Fig.25 In the fourth example of the shape of the cushioning member 30 shown, the movable portion 33 has a polygonal plane shape. In this example, the movable portion 33 has a hexagonal plane shape extending from the portion corresponding to the midfoot to the portion corresponding to the toes. In the case of the movable portion 33 having the above shape, it is easy to achieve the characteristics suitable for runners who land on the forefoot. In addition, it is not necessary to be a polygonal shape, and each corner can also be formed in a curved shape.

[0180] In the description of the first embodiment, an example in which the convex portion 32 and the peripheral convex portion 36 are separate is shown, but the present invention is not limited to this. The convex portion 32 and the peripheral convex portion 36 may be integrated. Fig.26 , Fig. 27 The longitudinal cross-sectional view of the cushioning member 30 along the line AA in which the convex portion 32 and the peripheral convex portion 36 are integrated corresponds to Figure 6 , Figure 7 . Fig.26 The buffer member 30 is shown in a no-load state. Fig. 27 The buffer member 30 is shown in a state where it receives the second load F2.

[0181] like Fig.26 As shown in FIG. 1 , the cross-sectional profile of the convex portion 32 sandwiched by the concave portion 34 on the facing surface 16 side is substantially M-shaped. The peripheral convex portion 36 contacts the facing surface 16 at two or more locations via the convex portion 32. Fig.26When viewed in cross section, the total size of the area in contact with the facing surface 16 in the peripheral convex portion 36 in the no-load state is 30% or more of the width dimension Wa of the entire cushioning member 30. That is, the total size Wce in the width direction of the area in contact with the facing surface 16 on the outer foot side of the peripheral convex portion 36 and the total size Wcj in the width direction of the area in contact with the facing surface 16 on the inner foot side may also be 30% or more of the width dimension Wa. In addition, the total size Wce and the size Wcj may be 70% or less of the width dimension Wa.

[0182] Moreover, in Fig.26 When viewed in cross section, the vertical distance Hp between the portion 32p of the convex portion 32 closest to the facing surface 16 in the vertical direction and the facing surface 16 may be 2 mm or more in the unloaded state. Furthermore, the vertical distance Hp may be 10 mm or less.

[0183] Moreover, in Fig.26 When viewed in cross section, the vertical distance Hd between the portion 34d and the portion 32p farthest from the facing surface 16 in the vertical direction in the recess 34 may be 1 mm or more in the unloaded state. Furthermore, the vertical distance Hd may be 13 mm or less.

[0184] and, Fig.26 When viewed in cross section, the vertical thickness Ha of the buffer member 30 on the vertical line passing through the portion 32p may be 10 mm or more in a no-load state. Furthermore, the vertical thickness Ha may be 30 mm or less.

[0185] like Fig. 27 As shown in FIG. 1 , in a state where the buffer member 30 receives the second load F2 , the convex portion 32 contacts the facing surface 16 similarly to the first embodiment.

[0186] In the description of the second embodiment, an example in which the shoe sole side portion 52d is interposed between the sole and the upper surface 30e of the cushioning member 30 is shown, but the present invention is not limited to this. Fig.28 The BB line cross-sectional view of the shoe 300 of the modified example corresponds to Fig.18 . This modification is different from the second embodiment in that the side portion 52d of the sole is between the cushioning member 30 and the sole 10, and the other structures are the same. In this modification, the extension portion 52p extends from both ends of the side portion 52d in the width direction. According to this modification, as in the second embodiment, the upper 20 and the linkage member 52 sink together with the cushioning member 30, so that the upper 20 and the cushioning member 30 fit the foot.

[0187] The above-described modifications have the same functions and effects as those of the above-described embodiment.

[0188] Any combination of the above-described embodiments and modifications is also useful as an embodiment of the present invention. A new embodiment generated by the combination has the effects of each of the combined embodiments and modifications.

[0189] Industrial Availability

[0190] The present invention may be used in connection with a shoe's cushioning member.

Claims

1. A kind of shoes, It is characterized in that include: Soles; A shoe upper, disposed above the shoe sole and surrounding the foot insertion portion; as well as a cushioning member housed in the foot insertion portion, The lower surface of the cushioning member is provided with a convex portion protruding toward the facing surface side facing the lower surface, a concave portion adjacent to the convex portion and recessed toward the upper side more than the convex portion, and a peripheral convex portion protruding toward the facing surface side more than the convex portion around the concave portion. The cushioning member functions as an insole, is formed of a foamed resin foam, and is not bonded to the facing surface. When the cushioning member is subjected to a predetermined first load, the peripheral convex portion contacts the facing surface and the convex portion does not contact the facing surface, wherein the first load is set based on the load that the cushioning member receives from the foot when the foot is inserted. When the cushioning member is subjected to a predetermined second load greater than the first load, the peripheral convex portion and the convex portion contact the facing surface, wherein the second load is set based on the load borne by the cushioning member from the foot during walking. A gap in the width direction between a peripheral wall surface of the buffer member and the shoe upper is larger than a gap in the front-rear direction between the peripheral wall surface and the shoe upper.

2. A kind of shoes, It is characterized in that include: Soles; A shoe upper, disposed above the shoe sole and surrounding the foot insertion portion; as well as a cushioning member housed in the foot insertion portion, The lower surface of the cushioning member is provided with a convex portion protruding toward the facing surface side facing the lower surface, a concave portion adjacent to the convex portion and recessed toward the upper side more than the convex portion, and a peripheral convex portion protruding toward the facing surface side more than the convex portion around the concave portion. The cushioning member functions as an insole, is formed of a foamed resin foam, and is not bonded to the facing surface. When the cushioning member is subjected to a predetermined first load, the peripheral convex portion contacts the facing surface and the convex portion does not contact the facing surface, wherein the first load is set based on the load that the cushioning member receives from the foot when the foot is inserted. When the cushioning member is subjected to a predetermined second load greater than the first load, the peripheral convex portion and the convex portion contact the facing surface, wherein the second load is set based on the load borne by the cushioning member from the foot during walking. The concave portion is located between the convex portion and the peripheral convex portion in the width direction, When the buffer member receives a downward load, the buffer member expands in a width direction greater than the buffer member expands in a front-rear direction.

3. A kind of shoes, It is characterized in that include: Soles; A shoe upper, disposed above the shoe sole and surrounding the foot insertion portion; as well as a cushioning member housed in the foot insertion portion, The lower surface of the cushioning member is provided with a convex portion protruding toward the facing surface side facing the lower surface, a concave portion adjacent to the convex portion and recessed toward the upper side more than the convex portion, and a peripheral convex portion protruding toward the facing surface side more than the convex portion around the concave portion. The cushioning member functions as an insole, is formed of a foamed resin foam, and is not bonded to the facing surface. When the cushioning member is subjected to a predetermined first load, the peripheral convex portion contacts the facing surface and the convex portion does not contact the facing surface, wherein the first load is set based on the load that the cushioning member receives from the foot when the foot is inserted. When the cushioning member is subjected to a predetermined second load greater than the first load, the peripheral convex portion and the convex portion contact the facing surface, wherein the second load is set based on the load borne by the cushioning member from the foot during walking. And the shoes also include: The deformation restricting portion is used to restrict deformation of the buffer member exceeding a predetermined amount.

4. The shoe according to claim 3, It is characterized in that The deformation restricting portion is provided at a portion facing the lower surface or the outer peripheral side surface of the buffer member.

5. The shoe according to claim 4, It is characterized in that The deformation restricting portion includes a protruding portion protruding from the facing surface.

6. A kind of shoes, It is characterized in that include: Soles; A shoe upper, disposed above the shoe sole and surrounding the foot insertion portion; as well as a cushioning member housed in the foot insertion portion, The lower surface of the cushioning member is provided with a convex portion protruding toward the facing surface side facing the lower surface, a concave portion adjacent to the convex portion and recessed toward the upper side more than the convex portion, and a peripheral convex portion protruding toward the facing surface side more than the convex portion around the concave portion. The cushioning member functions as an insole, is formed of a foamed resin foam, and is not bonded to the facing surface. When the cushioning member is subjected to a predetermined first load, the peripheral convex portion contacts the facing surface and the convex portion does not contact the facing surface, wherein the first load is set based on the load that the cushioning member receives from the foot when the foot is inserted. When the cushioning member is subjected to a predetermined second load greater than the first load, the peripheral convex portion and the convex portion contact the facing surface, wherein the second load is set based on the load borne by the cushioning member from the foot during walking. The buffer member includes a main body including the peripheral convex portion and a movable portion including the convex portion. The main body has an outer shape along the foot insertion portion and is provided with a receiving portion for receiving at least a portion of the movable portion. When a downward load is applied to the buffer member, the movable portion moves downward relative to the main body. The receiving portion includes an opening portion provided at a middle portion in a width direction of the main body portion. The inner peripheral surface of the housing portion is formed in a tapered shape.

7. The shoe according to claim 6, It is characterized in that The outer peripheral surface of the movable portion has a shape along the inner peripheral surface.

8. The shoe according to claim 6 or 7, It is characterized in that The movable portion is located at a position away from the facing surface upward when the buffer member receives the first load.

9. The shoe according to claim 6 or 7, It is characterized in that The movable portion is provided in plurality and spaced apart from each other in the front-rear direction.

10. A pair of shoes, It is characterized in that include: Soles; A shoe upper, disposed above the shoe sole and surrounding the foot insertion portion; as well as a cushioning member housed in the foot insertion portion, The lower surface of the cushioning member is provided with a convex portion protruding toward the facing surface side facing the lower surface, a concave portion adjacent to the convex portion and recessed toward the upper side more than the convex portion, and a peripheral convex portion protruding toward the facing surface side more than the convex portion around the concave portion. The cushioning member functions as an insole, is formed of a foamed resin foam, and is not bonded to the facing surface. When the cushioning member is subjected to a predetermined first load, the peripheral convex portion contacts the facing surface and the convex portion does not contact the facing surface, wherein the first load is set based on the load that the cushioning member receives from the foot when the foot is inserted. When the cushioning member is subjected to a predetermined second load greater than the first load, the peripheral convex portion and the convex portion contact the facing surface, wherein the second load is set based on the load borne by the cushioning member from the foot during walking. The buffer member includes a main body including the peripheral convex portion and a movable portion including the convex portion. The main body has an outer shape along the foot insertion portion and is provided with a receiving portion for receiving at least a portion of the movable portion. The movable portion moves downward relative to the main body when a downward load is applied to the buffer member. The movable portion has an elliptical planar shape in which the front-to-back dimension is larger than the width dimension.

11. The shoe according to claim 10, It is characterized in that The hardness of the material of the movable portion is different from the hardness of the material of the main body portion.

12. A kind of shoes, It is characterized in that include: Soles; An upper, disposed above the sole and surrounding the foot insertion portion; as well as a cushioning member housed in the foot insertion portion, The lower surface of the cushioning member is provided with a convex portion protruding toward the facing surface side facing the lower surface, a concave portion adjacent to the convex portion and recessed toward the upper side more than the convex portion, and a peripheral convex portion protruding toward the facing surface side more than the convex portion around the concave portion. The cushioning member functions as an insole, is formed of a foamed resin foam, and is not bonded to the facing surface. When the cushioning member is subjected to a predetermined first load, the peripheral convex portion contacts the facing surface and the convex portion does not contact the facing surface, wherein the first load is set based on the load that the cushioning member receives from the foot when the foot is inserted. When the cushioning member is subjected to a predetermined second load greater than the first load, the peripheral convex portion and the convex portion contact the facing surface, wherein the second load is set based on the load borne by the cushioning member from the foot during walking. The buffer member includes a main body including the peripheral convex portion and a movable portion including the convex portion. The main body has an outer shape along the foot insertion portion and is provided with a receiving portion for receiving at least a portion of the movable portion. The movable portion moves downward relative to the main body when a downward load is applied to the buffer member. The hardness of the material of the main body portion is different between a portion on the inner leg side and a portion on the outer leg side across the movable portion in the width direction.

13. A kind of shoes, It is characterized in that include: Soles; A shoe upper, disposed above the shoe sole and surrounding the foot insertion portion; as well as a cushioning member housed in the foot insertion portion, The lower surface of the cushioning member is provided with a convex portion protruding toward the facing surface side facing the lower surface, a concave portion adjacent to the convex portion and recessed toward the upper side more than the convex portion, and a peripheral convex portion protruding toward the facing surface side more than the convex portion around the concave portion. The cushioning member functions as an insole, is formed of a foamed resin foam, and is not bonded to the facing surface. When the cushioning member is subjected to a predetermined first load, the peripheral convex portion contacts the facing surface and the convex portion does not contact the facing surface, wherein the first load is set based on the load that the cushioning member receives from the foot when the foot is inserted. When the cushioning member is subjected to a predetermined second load greater than the first load, the peripheral convex portion and the convex portion contact the facing surface, wherein the second load is set based on the load borne by the cushioning member from the foot during walking. The buffer member includes a main body including the peripheral convex portion and a movable portion including the convex portion. The main body has an outer shape along the foot insertion portion and is provided with a receiving portion for receiving at least a portion of the movable portion. When a downward load is applied to the buffer member, the movable portion moves downward relative to the main body. The area of ​​the main body portion in contact with the facing surface is different between a portion on the inner leg side and a portion on the outer leg side across the movable portion.

14. A pair of shoes, It is characterized in that include: Soles; A shoe upper, disposed above the shoe sole and surrounding the foot insertion portion; as well as a cushioning member housed in the foot insertion portion, The lower surface of the cushioning member is provided with a convex portion protruding toward the facing surface side facing the lower surface, a concave portion adjacent to the convex portion and recessed toward the upper side more than the convex portion, and a peripheral convex portion protruding toward the facing surface side more than the convex portion around the concave portion. The cushioning member functions as an insole, is formed of a foamed resin foam, and is not bonded to the facing surface. When the cushioning member is subjected to a predetermined first load, the peripheral convex portion contacts the facing surface and the convex portion does not contact the facing surface, wherein the first load is set based on the load that the cushioning member receives from the foot when the foot is inserted. When the cushioning member is subjected to a predetermined second load greater than the first load, the peripheral convex portion and the convex portion contact the facing surface, wherein the second load is set based on the load borne by the cushioning member from the foot during walking. The buffer member includes a main body including the peripheral convex portion and a movable portion including the convex portion. The main body has an outer shape along the foot insertion portion and is provided with a receiving portion for receiving at least a portion of the movable portion. When a downward load is applied to the buffer member, the movable portion moves downward relative to the main body. The friction coefficient of the main body with the facing surface is different between a portion on the inner leg side and a portion on the outer leg side across the movable portion.

15. A kind of shoes, It is characterized in that include: Soles; An upper, disposed above the sole and surrounding the foot insertion portion; as well as a cushioning member housed in the foot insertion portion, The lower surface of the cushioning member is provided with a convex portion protruding toward the facing surface side facing the lower surface, a concave portion adjacent to the convex portion and recessed toward the upper side more than the convex portion, and a peripheral convex portion protruding toward the facing surface side more than the convex portion around the concave portion. The cushioning member functions as an insole, is formed of a foamed resin foam, and is not bonded to the facing surface. When the cushioning member is subjected to a predetermined first load, the peripheral convex portion contacts the facing surface and the convex portion does not contact the facing surface, wherein the first load is set based on the load that the cushioning member receives from the foot when the foot is inserted. When the cushioning member is subjected to a predetermined second load greater than the first load, the peripheral convex portion and the convex portion contact the facing surface, wherein the second load is set based on the load borne by the cushioning member from the foot during walking. And the shoes also include: The linkage component pulls the shoe upper downward when the buffer component is subjected to downward load.

16. The shoe according to claim 15, It is characterized in that The linkage component is fixed to a position of the shoe upper avoiding a wearing opening.

17. The shoe according to claim 16, It is characterized in that The interlocking member includes: a sole side portion located on the upper surface side of the buffer member; and an extension portion extending upward from both ends in the width direction of the sole side portion.

18. The shoe according to any one of claims 15 to 17, It is characterized in that The linkage member has a cylindrical or bag-shaped portion that wraps the foot.

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