Sneakers

Abstract

To make grip performance for the contact area satisfactorily demonstrable.SOLUTION: The sport shoe (1) is constituted with an outsole (10) for coming into contact with a grounding surface (G). The outsole is equipped with projected parts (20) which are formed lined up in plurality in a foot width direction and a front-back direction downward projectingly intersecting in the underside. The projected parts are each provided with: a central formation part (21); a pair of first outer formation part (23) that projects from the central formation part (21) to both sides in the foot width direction; and a pair of second outer formation parts (24) that project from the central formation part to both sides in the front-back direction. The first outer formation part is adjacent in the front-back direction to the first outer formation part of other projected parts that are adjacent in the foot width direction. The second outer formation part is adjacent in the foot width direction to the second outer formation part of other projected parts that are adjacent in the front-back direction.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a sports shoe having a plurality of protrusions on an outsole. [Background technology]

[0002] Due to the nature of badminton play, sports shoes, particularly badminton shoes, require grip performance that prevents slipping between the bottom side of the outsole and the floor surface during various footwork movements. Such grip performance is mainly achieved by multiple protrusions formed on the bottom surface of the outsole. A known badminton shoe having multiple protrusions on the outsole is disclosed in Patent Document 1. In Patent Document 1, grooves extending in various directions are formed on the bottom surface of the outsole, and multiple rectangular or triangular protrusions are formed in a line by the grooves. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 8-252102 Summary of the Invention [Problem to be solved by the invention]

[0004] In the shoes of Patent Document 1, the flat area of ​​the protrusions is large, making them less likely to deform when landing, etc., so there is room for improvement in grip performance. Here, a shoe can be configured to have an outsole formed by evenly arranging small, circular, pin-shaped protrusions when viewed from the bottom side. However, with this configuration, although the deformation of the protrusions is promoted compared to the shoes of Patent Document 1, there is a problem that the deformation becomes too large and the grip performance cannot be fully exhibited.

[0005] The present invention has been made in consideration of the above-mentioned points, and has an object to provide a sports shoe that can exhibit good grip performance on the ground surface. [Means for solving the problem]

[0006] A sports shoe according to one aspect of the present invention is a sports shoe having an outsole that comes into contact with the ground surface, the outsole having a plurality of protrusions formed side by side in a first direction and a second direction that intersect while protruding downward at least on the underside, the plurality of protrusions each having a central forming portion, a pair of first outer forming portions protruding from the central forming portion on both sides in the first direction, and a pair of second outer forming portions protruding from the central forming portion on both sides in the second direction, the first outer forming portions being: In a state where the protrusion is deformed so as to fall in the second direction, the protrusion is supported by the first outer forming portion of another protrusion adjacent to the protrusion in the first direction. The second outer forming portion is disposed adjacent to or near the first outer forming portion of another protrusion adjacent to the first direction in the second direction, and the second outer forming portion is In a state where the protrusion is deformed so as to fall in the first direction, the protrusion is supported by the second outer forming portion of another protrusion adjacent to the protrusion in the second direction. The second outer forming portion is disposed adjacent to or near in the first direction to the second outer forming portion of another protrusion adjacent in the second direction. Effect of the Invention

[0007] According to the present invention, when a player lands on a ground surface in various footwork, the first outer forming portion and the second outer forming portion of the plurality of protrusions can be deformed to exhibit grip performance. Furthermore, the first outer forming portion and the second outer forming portion of the adjacent protrusions are arranged adjacently or in close proximity to each other in the first outer forming portion and the second outer forming portion. Therefore, it is possible to prevent excessive deformation caused by one of the positions supporting the other. In other words, when a player lands on a ground surface, the first outer forming portion and the second outer forming portion can be deformed appropriately, and the grip performance of the protrusions can be exhibited well. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a bottom view showing an outsole of the badminton shoe according to the embodiment. [Diagram 2]FIG. [Diagram 3] 2 is an explanatory diagram of a protrusion in which a part of FIG. 1 is enlarged. FIG. [Figure 4] 4A is an end view taken along line AA in FIG. 3, and FIG. 4B is an end view taken along line BB in FIG. [Diagram 5] 3 is an explanatory view similar to FIG. 2, illustrating a state in which the protrusion is deformed by a force from behind. [Figure 6] 3 is an enlarged view similar to FIG. 2, illustrating a state in which the protrusion is deformed by a force from the outside foot side. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, the embodiment of the present invention will be described in detail with reference to the drawings. Note that, in the following, an example in which the sports shoe of the present invention is applied to a badminton shoe will be described, but the application target is not limited to this and can be changed. For example, the present invention can be applied to shoes for various sports, such as tennis shoes and golf shoes, as well as shoes for everyday use in town, walking shoes, and jogging shoes, and the range of use is wide.

[0010] FIG. 1 is a bottom view showing an outsole of a badminton shoe according to an embodiment. In the following drawings, some components may be omitted for convenience of explanation. In this specification and claims, as shown by the arrows in FIG. 1, the longitudinal direction of the shoe is the front-rear direction, the toe side is the front side, and the heel side is the rear side. In addition, the vertical direction when the outsole of the shoe is on the ground is the up-down direction, the front side perpendicular to the paper surface is the lower side, and the depth side is the upper side. Furthermore, the direction perpendicular to the front-rear and up-down directions (the left-right direction in FIG. 1) is the foot width direction, the big toe side is the inner foot side, and the little toe side is the outer foot side. Here, the foot width direction is the first direction, the front-rear direction is the second direction, and the first and second directions are orthogonal two axial directions.

[0011] As shown in FIG. 1, the badminton shoe 1 of this embodiment is provided with an outsole 10 on its bottom surface (lower surface), in other words, on the ground side when it comes into contact with a ground surface G (see FIGS. 4A and 4B) such as the floor of a gymnasium. This outsole 10 is made of a soft synthetic resin material, and examples of the synthetic resin material include rubber and urethane. A midsole (not shown) made of a soft elastic body with excellent shock absorption properties such as polyurethane foam or EVA is attached to the upper surface of the outsole 10. The midsole and outsole 10 form the sole 3 of the badminton shoe 1. The lower edge of an upper member (not shown) is attached integrally to the periphery of the midsole to form the badminton shoe 1.

[0012] In the outsole 10, an arch corresponding portion 12, which is a region corresponding to the arch of the foot, is disposed to be sandwiched in the front-rear direction between a forefoot portion 11 and a heel portion 13. In other words, the forefoot portion 11 is formed in front of the arch corresponding portion 12, and the heel portion 13 is formed behind it.

[0013] The outsole 10 has a recess 15 formed mainly in the arch-corresponding portion 12. The recess 15 is open to the outside of the outsole 10 on the medial side in the foot width direction, and is closed by the outsole 10 on the lateral side. The recess 15 is formed in the center of the outsole 10 in the foot width direction, from the rear part of the forefoot portion 11, passing through the arch-corresponding portion 12, to the center of the heel portion 13. The recess 15 has a shape that narrows from the center of the outsole 10 in the foot width direction toward the open portion on the medial side.

[0014] In the forefoot portion 11, an L-shaped bent groove 11a extending generally forward from the front end of the recessed portion 15 and branch grooves 11b branching from the front end of the bent groove 11a to extend to the front side and the inner foot side are formed. In the center of the heel portion 13 in the front-to-rear direction, an inclined groove 13a is formed, which is slightly inclined with respect to the foot width direction. In the rear outer foot side of the heel portion 13, a plurality of grooves 13b extending in a lattice pattern are formed.

[0015] The outsole 10 has a plurality of protrusions 20 formed side by side when viewed from below. The protrusions 20 are formed in an area of ​​the outsole 10 other than the area where the bent grooves 11a, the branched grooves 11b, the inclined grooves 13a, the grooves 13b, and the recessed portions 15 are formed.

[0016] The shape and orientation of the protrusions 20 are formed differently depending on the location of the outsole 10. In this embodiment, the protrusions 20 are formed differently in three regions of the outsole 10, and these three regions are referred to as a first region A1, a second region A2, and a third region A3.

[0017] The first region A1 is defined as a region in front of and on the inner side of the branch groove 11b in the forefoot portion 11. The first region A1 also includes a region surrounded by the branch groove 11b, the bent groove 11a, and the recessed portion 15 extending in the foot width direction in the forefoot portion 11. The second region A2 is defined as a region on the outer side of the bent groove 11a, the branch groove 11b, and the recessed portion 15 in the foot width direction. The second region A2 is defined as a region extending from the front end of the forefoot portion 11 to the inclined groove 13a in the front-rear direction. The third region A3 is defined as a region in the heel portion 13 where the inclined groove 13a, the groove 13b, and the recessed portion 15 are not formed.

[0018] First, the protrusions 20 formed in the first region A1 will be described below with reference to FIG. 2 in addition to FIG.

[0019] 1, the multiple protrusions 20 of the outsole 10 in the first region A1 are aligned in the foot width direction and the front-rear direction, which are perpendicular to each other. Each protrusion 20 is formed on the lower surface of the outsole 10 so as to protrude downward.

[0020] The projections 20 in the first region A1 have the same shape when viewed from below, and are formed in a roughly windmill shape. The projections 20 adjacent to the bent groove 11a, the branched groove 11b, the recessed portion 15, and the outer edge of the outer foot side of the outsole 10 are cut in the vicinity of the adjacent positions. The projections 20 adjacent to the outer edge of the inner foot side of the outsole 10 are formed continuously so as to wrap around the side surface (not shown) of the outsole 10 rising from the outer edge of the inner foot side. Thus, the multiple projections 20 are formed not only on the lower surface of the outsole 10 but also on the side surfaces.

[0021] Fig. 2 is an enlarged explanatory diagram of the protrusions. As shown in Fig. 2, the multiple protrusions 20 each include a central forming portion 21 that forms a central square-shaped area when viewed from below, a pair of first outer forming portions 23 that protrude from the central forming portion 21 on both sides in the foot width direction, and a pair of second outer forming portions 24 that protrude from the central forming portion 21 on both sides in the front-rear direction. Each protrusion 20 is formed in a shape that becomes smaller in plan view toward the bottom, which is the front side of the paper surface of Fig. 2. Therefore, each protrusion 20 is represented by two parallel lines on the outer edges in Figs. 1 and 2.

[0022] In each protrusion 20, the width of each first outer forming portion 23 in the front-rear direction is smaller than the width of the central forming portion 21, specifically, it is formed to be about half the width of the central forming portion 21. Also, in each protrusion 20, the rear end of the first outer forming portion 23 on the inner foot side and the rear end of the central forming portion 21 are aligned. Therefore, the first outer forming portion 23 on the inner foot side is formed to protrude toward the inner foot side from the rear half of the central forming portion 21 in the front-rear direction.

[0023] Furthermore, in each protrusion 20, the front end of the first outer forming part 23 on the outer foot side and the front end of the central forming part 21 are aligned. Therefore, the first outer forming part 23 on the outer foot side is formed to protrude toward the outer foot side from the front-to-rear front half of the central forming part 21. In this way, the first outer forming part 23 on the inner foot side (one of the pair of first outer forming parts 23) is formed with a position shifted in the front-to-rear direction relative to the first outer forming part 23 on the outer foot side (the other of the pair of first outer forming parts 23).

[0024] In each protrusion 20, each second outer forming portion 24 is formed at a position rotated 90° from each first outer forming portion 23 around the center position of the central forming portion 21. More specifically, in each protrusion 20, the width of each second outer forming portion 24 is formed smaller than the width of the central forming portion 21 in the foot width direction, specifically, it is formed to be about half the width of the central forming portion 21. Also, in each protrusion 20, the end portion on the inner foot side of the front second outer forming portion 24 and the end portion on the inner foot side of the central forming portion 21 are aligned. Therefore, the front second outer forming portion 24 is formed to protrude forward from the inner foot side half portion in the foot width direction of the central forming portion 21.

[0025] Furthermore, in each protrusion 20, the end portion on the outer foot side of the rear second outer forming portion 24 and the end portion on the outer foot side of the central forming portion 21 are aligned. Therefore, the rear second outer forming portion 24 is formed protruding rearward from the half portion on the outer foot side in the foot width direction of the central forming portion 21. In this manner, the front second outer forming portion 24 (one of the pair of second outer forming portions 24) is formed with a position shifted in the foot width direction relative to the rear second outer forming portion 24 (the other of the pair of second outer forming portions 24).

[0026] By setting the width and forming position of each of the first outer forming portions 23 and each of the second outer forming portions 24 as described above, it is possible to bring adjacent protrusions 20 closer to each other in the arrangement direction of the protrusions 20. This makes it possible to adopt a design that increases the number of protrusions 20 formed on the outsole 10.

[0027] Each protrusion 20 is adjacent to another protrusion 20 in the foot width direction and the front-rear direction on the underside of the outsole 10, except when it is adjacent to the outer edge of the outsole 10, the bent groove 11a, the branch groove 11b, or the recessed portion 15 (see FIG. 1 for all). The first outer forming portions 23 of the protrusions 20 adjacent to each other in the foot width direction are arranged adjacent to each other in the front-rear direction. In detail, in each protrusion 20, the front end of the first outer forming portion 23 on the inner foot side is arranged adjacent to the rear end of the first outer forming portion 23 on the outer foot side of the other protrusion 20 adjacent to the inner foot side. In other words, in each protrusion 20, the rear end of the first outer forming portion 23 on the outer foot side is arranged adjacent to the front end of the first outer forming portion 23 on the inner foot side of the other protrusion 20 adjacent to the outer foot side.

[0028] The first outer forming portion 23 has a first deformation region 23a, and the first deformation region 23a is an area facing the first outer forming portion 23 that is disposed adjacently in the front-rear direction.

[0029] The second outer forming parts 24 of the protrusions 20 adjacent to each other in the front-rear direction are arranged adjacent to each other in the foot width direction. More specifically, in each protrusion 20, the outer foot side end of the front second outer forming part 24 is arranged adjacent to the inner foot side end of the rear second outer forming part 24 of the other protrusion 20 adjacent to the front side. In other words, in each protrusion 20, the inner foot side end of the rear second outer forming part 24 is arranged adjacent to the outer foot side end of the front second outer forming part 24 of the other protrusion 20 adjacent to the rear side.

[0030] The second outer forming portion 24 includes a second deformation region 24a, and the second deformation region 24a is an area facing the second outer forming portion 24 disposed adjacently in the foot width direction.

[0031] Here, in each protrusion 20, a gap 26 is formed between the end portion opposite the central forming portion 21 in each of the first outer forming portions 23 and each of the second outer forming portions 24 and the central forming portion 21 of another protrusion 20 adjacent to the end portion in the vicinity of the end portion. Such gap 26 is an area in the outsole 10 where no protrusion 20 is formed. In this embodiment, the area surrounded by four protrusions 20 aligned in the foot width direction and the front-rear direction is formed in a windmill shape similar to the protrusion 20, including the four gaps 26. A recess 27 recessed upward (toward the depth of the paper in the figure) is formed by such a windmill-shaped area, and the area of ​​the recess 27 excluding the gaps 26 is formed as a roughly square central area 28.

[0032] Here, the first outer forming portion 23 and the second outer forming portion 24 will be further described with reference to Figs. 3 and 4. Fig. 3 is an explanatory diagram of the protrusion, which is an enlarged view of a part of Fig. 1. Fig. 4A is an end view taken along line AA in Fig. 3, and Fig. 4B is an end view taken along line BB in Fig. 3. As shown in Figs. 3 and 4A, each first outer forming portion 23 is formed in a shape that gradually becomes thinner toward the bottom. Therefore, a V-shaped groove is formed between adjacent first outer forming portions 23 in cross section, and the first outer forming portions 23 are in contact with each other at the upper part (bottom part) of the groove.

[0033] As shown in Fig. 4B, each second outer forming portion 24 is also formed to have a shape that gradually tapers downward. Therefore, a V-shaped groove is formed between adjacent second outer forming portions 24 in a cross-sectional view, and the second outer forming portions 24 are in contact with each other at the top (bottom) of the groove. In the outsole 10 of this embodiment, the shape shown in Fig. 4A is the same as the shape shown in Fig. 4B.

[0034] Returning to FIG. 1, the protrusion 20 in the second region A2 has a circular recess 21a formed at the center of the central forming portion 21, in contrast to the protrusion 20 in the first region A1 described above. The protrusion 20 in the second region A2 is formed in the same manner as the protrusion 20 in the first region A1, except that the recess 21a is formed. The protrusion 20 in the third region A3 has a different orientation from the protrusion 20 in the second region A2, and is formed aligned in a direction slightly tilted counterclockwise in FIG. 1. The protrusion 20 in the third region A3 is formed in the same manner as the protrusion 20 in the second region A2, except that the orientation and arrangement direction of the protrusion 20 are changed. The protrusion 20 without the recess 21a has higher rigidity than the protrusion 20 with the recess 21a. In this embodiment, the recess 21a is not formed in the protrusion 20 in the first region A1 corresponding to the thumb and the ball of the foot, thereby increasing rigidity. It is possible to freely select whether or not to form the recesses 21a in each of the protrusions 20 of the outsole 10. For example, a configuration in which the recesses 21a are formed in all of the protrusions 20 of the outsole 10, a configuration in which the recesses 21a are not formed in all of the protrusions 20 of the outsole 10, or a configuration in which the recesses 21a are formed in at least one of the multiple protrusions 20 may be adopted. Also, a configuration in which the recesses 21a are formed in each of the protrusions 20 in at least one of the first to third regions A1 to A3, and the recesses 21a are not formed in each of the protrusions 20 in the other regions may be adopted.

[0035] Next, the elastic deformation of each protrusion 20 when the outsole 10 lands on the ground surface G (see FIG. 4A) (hereinafter referred to as "during landing") will be described. When landing, forces are applied from various directions from the ground surface G to the outsole 10 depending on the player's movement. In the recess 27, the central region 28 is larger in size in both the foot width direction and the front-to-rear direction, so that forces are more likely to act from the central region 28 toward the protrusion 20. First, a case in which the badminton shoe 1 lands on the ground surface G while moving backward and a force from the rear to the front (force from behind) is applied to each protrusion 20 will be described below with reference to FIG. 5.

[0036] FIG. 5 is an enlarged view similar to FIG. 2, showing a state in which the protrusion is deformed by a force from behind. The deformation of the protrusion in FIG. 5 is simplified and shown in a state in which only a part of the protrusion is deformed (the same applies to FIG. 6 described later). As shown in FIG. 5, when a force from behind is applied to each protrusion 20, a force from the rear to the front acts on the central region 28 of the recess 27. As a result, the first outer forming portion 23 on the inner foot side facing the front side of the central region 28 is elastically deformed so as to fall forward. This deformation makes the first outer forming portion 23 on the inner foot side almost catch on the ground surface G (see FIG. 4A). This makes it possible to restrict the outsole 10 from sliding backward on the ground surface G when landing, and to exhibit grip performance backward.

[0037] The first outer forming part 23 on the outer foot side is covered from the rear by the first outer forming part 23 on the inner foot side of the protrusion 20 adjacent to the outer foot side. Therefore, the force acting on the first outer forming part 23 on the outer foot side is smaller than that on the first outer forming part 23 on the inner foot side, and the amount of deformation is also smaller. In the first outer forming part 23 on the outer foot side where the amount of deformation is smaller, the first outer forming part 23 on the inner foot side of the other protrusion 20 which deforms so as to fall forward is supported, thereby preventing excessive deformation from occurring. As a result, the first outer forming part 23 on the inner foot side can be appropriately deformed, and the grip performance in the rearward direction can be exhibited well.

[0038] The first outer forming part 23 on the inner foot side deforms in a direction in which the first deformation region 23a approaches the first outer forming part 23 on the outer foot side adjacent to it in the front. When the applied force is released, the first deformation region 23a returns to its original state (deforms) in a direction in which it moves away from the first outer forming part 23 on the outer foot side adjacent to it in the front.

[0039] The central forming portion 21 does not overlap with the central region 28 in the front-rear direction, and has a longer length in the front-rear direction than the first outer forming portion 23. The front and rear second outer forming portions 24 are arranged to overlap with the central forming portion 21 in the front-rear direction without overlapping with the central region 28 in the front-rear direction. As a result, when a force is applied from behind, the central forming portion 21 and each second outer forming portion 24 have a smaller deformation amount than the first outer forming portion 23 on the inner foot side. The central forming portion 21 and each second outer forming portion 24, which have such a small deformation amount, can deform at a different timing than the first outer forming portion 23 on the inner foot side, and can exhibit a predetermined grip performance.

[0040] Although Fig. 5 illustrates a case where a force is applied to each protrusion 20 from behind, even when a force is applied from a direction displaced by a predetermined angle from behind, each protrusion 20 deforms into a shape similar to that shown in Fig. 5. To give a specific example, when a force is applied from the 5 o'clock to 8 o'clock direction in Fig. 5, each protrusion 20 deforms into a shape similar to that shown in Fig. 5, and is able to exert grip performance in the direction in which the force is applied.

[0041] Moreover, when a force is applied to each protrusion 20 from the front, the protrusions 20 are in a state rotated 180° from FIG. 5, and can exert grip performance in the forward direction. Furthermore, when a force is applied from a direction displaced by a predetermined angle from the front, each protrusion 20 is deformed into a shape similar to the state rotated 180° from FIG. 5. To give a specific example, when a force is applied from the 11 o'clock to 2 o'clock direction in FIG. 5, each protrusion 20 is deformed into a shape similar to that in FIG. 5, and can exert grip performance in the direction in which the force is applied.

[0042] Next, a case where the badminton shoe 1 lands on the ground surface G while moving toward the outside foot side and a force from the outside foot side toward the inside foot side (force from the outside foot side) is applied to each protrusion 20 will be described with reference to FIG. 6.

[0043] Fig. 6 is an enlarged view similar to Fig. 2, showing a state in which the protrusions are deformed by a force from the lateral side of the foot. As shown in Fig. 6, when a force from the lateral side is applied to each protrusion 20, a force from the lateral side toward the medial side acts on the central region 28 of the recess 27. As a result, the rear second lateral forming portion 24 facing the medial side of the central region 28 is elastically deformed so as to fall toward the medial side. This deformation makes the rear second lateral forming portion 24 almost catch on the ground surface G (see Fig. 4A). This makes it possible to prevent the outsole 10 from slipping toward the lateral side of the foot on the ground surface G when landing, and to exhibit grip performance toward the lateral side of the foot.

[0044] The front second outer forming part 24 is covered from the outer foot side by the rear second outer forming part 24 of the adjacent protrusion 20 on the front side. Therefore, the force acting on the front second outer forming part 24 is smaller than that on the rear second outer forming part 24, and the amount of deformation is also smaller. In the front second outer forming part 24 with a smaller amount of deformation, the rear second outer forming part 24 of the other protrusion 20 that deforms so as to fall toward the inner foot side is supported, thereby preventing excessive deformation. As a result, the rear second outer forming part 24 can be appropriately deformed, and the grip performance can be exhibited well.

[0045] The rear second outer forming part 24 deforms in a direction in which the second deformation region 24a approaches the adjacent front second outer forming part 24 on the medial side of the foot. When the applied force is released, the second deformation region 24a returns to its original state (deforms) in a direction in which it moves away from the adjacent front second outer forming part 24 on the medial side of the foot.

[0046] The central forming portion 21 does not overlap with the central region 28 in the foot width direction, and is longer in the foot width direction than the second outer forming portion 24. The first outer forming portions 23 on both sides of the foot width direction are arranged to overlap with the central forming portion 21 in the foot width direction without overlapping with the central region 28 in the foot width direction. As a result, the central forming portion 21 and each first outer forming portion 23 have a smaller deformation amount than the rear second outer forming portion 24 when a force is applied from the lateral foot side. The central forming portion 21 and each first outer forming portion 23, which have such a small deformation amount, can deform at a different timing than the rear second outer forming portion 24 and exhibit a predetermined grip performance.

[0047] Although Fig. 6 illustrates a case where a force is applied to each protrusion 20 from the outside foot side, even if a force is applied from a direction displaced by a predetermined angle from the outside foot side, each protrusion 20 deforms into a shape similar to that of Fig. 6. To give a specific example, when a force is applied from the 2 o'clock to 5 o'clock direction in Fig. 6, each protrusion 20 deforms into a shape similar to that of Fig. 5, and is able to exert grip performance in the direction in which the force is applied.

[0048] Moreover, when a force is applied to each protrusion 20 from the inner side of the foot, the protrusions 20 are in a state rotated 180° from FIG. 6, and are able to exert grip performance toward the inner side of the foot. Furthermore, when a force is applied from a direction displaced by a predetermined angle from the inner side of the foot, each protrusion 20 is deformed into a shape similar to the state rotated 180° from FIG. 6. To give a specific example, when a force is applied from the 8 o'clock to 11 o'clock direction in FIG. 6, each protrusion 20 is deformed into a shape similar to that in FIG. 6, and is able to exert grip performance in the direction in which the force is applied.

[0049] As described above, in this embodiment, the deformation of the adjacent first outer forming portion 23 and the adjacent second outer forming portion 24 allows the grip performance to be exhibited well in any direction of 360° when landing. This allows the foot to brace itself powerfully. As a result, the reflexive movement and turning action when landing can be stabilized, and quick and smooth footwork can be achieved.

[0050] The present invention is not limited to the above-described embodiment, and can be modified in various ways. In the above-described embodiment, the size, shape, direction, and the like shown in the attached drawings are not limited to these, and can be modified as appropriate within the scope of the effects of the present invention. In addition, the present invention can be modified as appropriate without departing from the scope of the purpose of the present invention.

[0051] For example, in the above embodiment, the first direction in which the protrusions 20 are arranged in the first region A1 and the second region A2 is the foot width direction, and the second direction is the front-rear direction, which are orthogonal two axial directions, but this is not limited to this. The arrangement direction of the protrusions 20 may be inclined with respect to the foot width direction and the front-rear direction as in the third region A3, or may be a curved or bent direction. In addition, the first direction and the second direction are not limited to being orthogonal as long as they are intersecting directions.

[0052] In addition, as shown in Figure 4A, the first outer forming portions 23 are arranged adjacent to each other in the front-to-rear direction, but as long as the same performance as in the above embodiment is achieved, the first outer forming portions 23 may be positioned in close proximity to each other with a gap provided between adjacent first outer forming portions 23. Similarly, as shown in Figure 4B, the second outer forming portions 24 are arranged adjacent to each other in the foot width direction, but as long as the same performance as in the above embodiment is achieved, the second outer forming portions 24 may be positioned adjacent to each other with a gap provided between adjacent second outer forming portions 24.

[0053] Furthermore, the central forming portion 21, the first outer forming portion 23 and the second outer forming portion 24 of the protrusion 20, as well as the gap 26 and central region 28 of the recess 27 are not limited to the shapes shown in the figures, and may be other rectangular, polygonal, circular, elliptical, etc. shapes. [Industrial Applicability]

[0054] The present invention relates to a sports shoe that can exhibit good grip performance due to a plurality of protrusions formed in a row on an outsole. [Explanation of symbols]

[0055] 1. Badminton shoes (sports shoes) 10 Outsole 20 Protrusion 21 Central forming part 23 First outer forming part 23a First transformation area 24 Second outer forming part 24a Second deformation area G ground plane

Claims

1. In a sports shoe having an outsole that contacts the ground, The outsole includes a plurality of protrusions formed on at least a lower surface thereof in a line in a first direction and a second direction intersecting each other while protruding downward, Each of the plurality of protrusions includes a central forming portion, a pair of first outer forming portions protruding from the central forming portion on both sides in the first direction, and a pair of second outer forming portions protruding from the central forming portion on both sides in the second direction, the first outer forming portion is disposed adjacent to or near the first outer forming portion of the other protrusion adjacent in the first direction in the second direction so that the first outer forming portion is supported by the first outer forming portion of the other protrusion adjacent in the first direction in a state where the first outer forming portion is deformed so as to fall in the second direction; A sports shoe characterized in that the second outer forming portion is positioned adjacent to or near the second outer forming portion of another protrusion adjacent in the second direction in the first direction so that the second outer forming portion is supported by the second outer forming portion of another protrusion adjacent in the second direction when deformed so as to collapse in the first direction.

2. the first outer forming portion includes a first deformation region in which the first outer forming portions adjacent to or disposed close to each other in the second direction deform in directions approaching and moving away from each other, The sports shoe according to claim 1, characterized in that the second outer forming portion has a second deformation region in which the second outer forming portions adjacent or arranged nearby in the first direction deform in directions approaching and moving away from each other.

3. The width of the first outer forming portion in the second direction is smaller than the width of the central forming portion in the second direction, The sports shoe according to claim 1 , wherein the width of the second outer forming portion in the first direction is smaller than the width of the central forming portion in the first direction.

4. one of the first outer forming portions is formed so as to be shifted in the second direction relative to the other of the first outer forming portions, The sports shoe according to claim 1 , wherein one of the second outer side forming portions is formed so as to be shifted in the first direction from the other of the second outer side forming portions.

5. The sports shoe according to claim 1 , wherein the first direction and the second direction are set as two orthogonal axial directions.

6. The sports shoe according to claim 1, characterized in that a recess is formed in the central forming portion of at least one of the plurality of protrusions.

7. A sports shoe as described in claim 4, characterized in that a pair of the second outer forming portions are formed at positions rotated 90° from the pair of the first outer forming portions around the center position of the central forming portion.

8. The central forming portion has a square shape, In the second direction, the width of the first outer forming portion is half that of the central forming portion, In the first direction, the width of the second outer forming portion is half that of the central forming portion, a pair of the first outer forming portions are arranged at both ends of the central forming portion in the second direction, The sports shoe according to claim 4, wherein a pair of the second outer forming portions are arranged on both ends of the central forming portion in the first direction.

9. The outsole has a plurality of recesses that are areas where the protrusions are not formed, The recess has a central region and The sports shoe according to claim 1, characterized in that it has four gaps formed between the end portions of the first outer forming portion and the second outer forming portion of the protrusion opposite the central forming portion and the central forming portion of another adjacent protrusion near the end portions, the gaps being continuous with the central region.

Images