Sports shoes

Abstract

It is made possible to well exert a gripping performance to a ground surface. An athletic shoe (1) is configured with an outsole (10) that comes into contact with a ground surface (G). The outsole has a plurality of protrusions (20) that protrude downward and are arranged in a crosswise width direction and a front-rear direction on a lower surface. Each protrusion has a central formation (21), a pair of first outer side formations (23) that protrude from the central formation (21) to both sides in the width direction, and a pair of second outer side formations (24) that protrude from the central formation to both sides in the front-rear direction. The first outer side formations are adjacent to the first outer side formations of other protrusions that are adjacent in the width direction in the front-rear direction. The second outer side formations are adjacent to the second outer side formations of other protrusions that are adjacent in the front-rear direction in the width direction.

Description

Technical Field

[0001] This invention relates to athletic shoes with multiple protrusions on the outsole. Background Technology

[0002] In sports shoes, especially badminton shoes, the nature of badminton requires excellent grip to limit slippage between the sole and the ground during various footwork movements. This grip is primarily achieved through multiple protrusions formed on the sole surface. A badminton shoe with such multiple protrusions on the outsole is known, as disclosed in Patent Document 1. In Patent Document 1, grooves extending in various directions are formed on the sole surface of the outsole, and multiple quadrilateral and triangular protrusions are arranged through these grooves.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 8-252102 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] In the shoe of Patent Document 1, the increased planar area of ​​the protrusions makes them less prone to deformation upon landing, thus allowing for improvement in grip performance. Here, as a shoe, a structure could be considered where the outsole is formed by evenly arranging small, round, pin-shaped protrusions when viewed from the bottom side. However, while this structure promotes deformation of the protrusions compared to the shoe of Patent Document 1, there is a problem that the deformation is too large, failing to fully utilize grip performance.

[0008] The present invention was made in view of this purpose, and the object is to provide an athletic shoe that can provide good grip performance on the contact surface.

[0009] Technical means for solving problems

[0010] One aspect of the present invention is an athletic shoe having an outsole that contacts the ground. The outsole is characterized in that it has at least one plurality of downwardly projecting protrusions on its lower surface, arranged along intersecting first and second directions. Each of the plurality of protrusions has a central portion, a pair of first outer portions protruding from the central portion to both sides in the first direction, and a pair of second outer portions protruding from the central portion to both sides in the second direction. The first outer portions are arranged adjacent to or close to the first outer portions of other protrusions adjacent to each other in the first direction in the second direction. Similarly, the second outer portions are arranged adjacent to or close to the second outer portions of other protrusions adjacent to each other in the second direction in the first direction.

[0011] Invention Effects

[0012] According to the present invention, during various footwork techniques of a player, upon landing, the first and second outermost portions of the multiple protrusions can deform to provide grip. Furthermore, the first and second outermost portions are arranged adjacent to or close to each other on adjacent protrusions. Therefore, each portion in this arrangement supports the other, preventing excessive deformation. In other words, upon landing, the first and second outermost portions can deform appropriately, effectively providing grip based on the protrusions. Attached Figure Description

[0013] Figure 1 This is a bottom view showing the outsole of the badminton shoe according to the embodiment.

[0014] Figure 2 This is an enlarged illustration of the protrusion.

[0015] Figure 3 It is Figure 1 An enlarged illustration of a portion of the protrusion.

[0016] Figure 4A yes Figure 3 AA line cross-section diagram, Figure 4B yes Figure 3 BB line cross-section diagram.

[0017] Figure 5 This shows the state of the protrusion deformed due to a force from behind. Figure 2 The same explanatory diagram.

[0018] Figure 6 This shows the state in which the protrusion is deformed due to the force from the outer foot side. Figure 2 The same enlarged image. Detailed Implementation

[0019] Hereinafter, embodiments of the present invention will be specifically described with reference to the accompanying drawings. Furthermore, the following description will focus on an example of applying the sports shoe of the present invention to badminton shoes, but the application is not limited to this and can be varied. For example, it can also be applied to shoes for various sports, such as everyday city shoes, walking shoes, and running shoes, in addition to tennis shoes and golf shoes, demonstrating its wide range of applications.

[0020] Figure 1 This is a bottom view showing the outsole of the badminton shoe according to the embodiment. Furthermore, in the following figures, some structures are sometimes omitted for ease of explanation. Additionally, in this specification and claims, as... Figure 1 As shown by the middle arrow, the length of the shoe is defined as the front-to-back direction, the toe side as the front, and the heel side as the back. Additionally, the vertical direction with the outsole in contact with the ground is defined as the up-and-down direction, the direction perpendicular to the paper (near the front) is defined as the bottom, and the depth side as the top. Furthermore, the direction perpendicular to the front-to-back and up-and-down directions (…) Figure 1 The left-right direction is defined as the foot width direction, the big toe side is defined as the inner foot side, and the little toe side is defined as the outer foot side. Here, the foot width direction is defined as the first direction, the front-back direction is defined as the second direction, and the first and second directions are defined as two orthogonal axes.

[0021] like Figure 1 As shown, the badminton shoe 1 of this embodiment has its bottom (lower surface) in contact with the ground surface G (refer to the gymnasium floor) on its bottom surface (lower surface). Figure 4A and Figure 4B The grounding side during contact includes an outsole 10. This outsole 10 is made of a soft synthetic resin material, such as rubber or urethane. A midsole (not shown) with excellent shock absorption properties, such as polyurethane foam or EVA, is bonded to the upper surface of the outsole 10. The midsole and outsole 10 together form the sole 3 of the badminton shoe 1. The lower edge of an upper component (not shown) is integrally attached to the periphery of the midsole to form the badminton shoe 1.

[0022] In the outsole 10, a center-of-the-foot portion 12 is sandwiched between the forefoot portion 11 and the heel portion 13 in a front-to-back direction. In other words, the forefoot portion 11 is formed in front of the center-of-the-foot portion 12, and the heel portion 13 is formed behind it.

[0023] The outsole 10 has a recess 15 mainly formed in the arch-corresponding portion 12. In the foot-width direction, the recess 15 opens outwards from the inner foot side of the outsole 10 and is closed by the outsole 10 on the outer foot side. Furthermore, the recess 15 extends from the rear of the forefoot portion 11 through the arch-corresponding portion 12 to the center of the heel portion 13 at the center of the outsole 10 in the foot-width direction. 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 inner foot side.

[0024] On the forefoot portion 11, an L-shaped bending groove 11a extending generally forward from the front end of the recess 15 is formed, and a branching groove 11b extending forward and inward from the front end of the bending groove 11a is formed. On the heel portion 13, a slightly inclined groove 13a is formed at the center in the front-rear direction. Multiple grooves 13b extending in a grid pattern are formed on the rear outer side of the heel portion 13.

[0025] The outsole 10 has a plurality of protrusions 20 arranged in a row when viewed from below. The protrusions 20 are formed in the area outside the bending groove 11a, branch groove 11b, inclined groove 13a, groove 13b and recess 15 in the outsole 10.

[0026] The shape and orientation of the protrusion 20 vary depending on the location of the outsole 10. In this embodiment, it is formed differently in three regions of the outsole 10, which are designated as the first region A1, the second region A2, and the third region A3.

[0027] The first region A1 is defined as the area in the forefoot portion 11 that is forward and on the inner side of the foot, beyond the branch groove 11b. Additionally, the first region A1 also includes the area surrounded by the branch groove 11b, the bending groove 11a, and the recess 15 extending along the foot width direction in the forefoot portion 11. The second region A2 is defined as the area in the foot width direction that is on the outer side of the foot, beyond the bending groove 11a, the branch groove 11b, and the recess 15. Furthermore, the second region A2 is defined as the area in the front-to-back direction extending from the front end of the forefoot portion 11 to the inclined groove 13a. The third region A3 is defined as the area in the heel portion 13 where the inclined groove 13a, the groove 13b, and the recess 15 are not formed.

[0028] First, below, except Figure 1 Also refer to Figure 2 The protrusion 20 formed in the first region A1 will be described.

[0029] like Figure 1 As shown, a plurality of protrusions 20 of the outsole 10 in the first region A1 are arranged in a foot-width direction and a front-back direction that are orthogonal. Each protrusion 20 is formed to protrude downward on the lower surface of the outsole 10.

[0030] The protrusions 20 in the first region A1 have the same shape when viewed from below, forming a roughly windmill shape. Furthermore, the protrusions 20 adjacent to the bending groove 11a, branch groove 11b, recess 15, and the outer edge of the outer foot side in the outsole 10 are shaped as if cut off near that adjacent position. Additionally, the protrusions 20 adjacent to the outer edge of the inner foot side of the outsole 10 are continuously formed in a manner that rises from the outer edge of the inner foot side and wraps around to the side surface of the outsole 10 (not shown). Therefore, multiple protrusions 20 are formed not only on the lower surface of the outsole 10 but also on the side surface.

[0031] Figure 2 This is an enlarged illustration of the protrusion. For example... Figure 2As shown, each of the plurality of protrusions 20 has a central forming portion 21 that is square in shape when viewed from below, a pair of first outer forming portions 23 that protrude from the central forming portion 21 in the width direction of the foot, and a pair of second outer forming portions 24 that protrude from the central forming portion 21 in the forward and backward direction. Furthermore, each protrusion 20 is formed in a planar shape facing towards becoming Figure 2 The shape of the paper surface that becomes smaller near the lower front side. Therefore, each protrusion 20 is in Figure 1 and Figure 2 In the middle, the outer edge is represented by two parallel lines.

[0032] 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 about half the width of the central forming portion 21. Furthermore, in each protrusion 20, the rear end of the first outer forming portion 23 on the inner leg side is aligned with the rear end of the central forming portion 21. Therefore, the first outer forming portion 23 on the inner leg side protrudes from the rear half of the central forming portion 21 in the front-rear direction toward the inner leg side.

[0033] Furthermore, in each protrusion 20, the front end of the first outer lateral forming portion 23 on the outer foot side is aligned with the front end of the central forming portion 21. Therefore, the first outer lateral forming portion 23 on the outer foot side is formed protruding from the front half of the central forming portion 21 in the front-rear direction toward the outer foot side. In this way, the first outer lateral forming portion 23 on the inner foot side (one of the pair of first outer lateral forming portions 23) is formed at a staggered position in the front-rear direction relative to the first outer lateral forming portion 23 on the outer foot side (the other of the pair of first outer lateral forming portions 23).

[0034] In each protrusion 20, each second outer forming portion 24 is formed at a position after rotating each first outer forming portion 23 90° around the center position of the central forming portion 21. Specifically, in each protrusion 20, in the foot width direction, the width of each second outer forming portion 24 is smaller than the width of the central forming portion 21, specifically, it is formed to be approximately half the width of the central forming portion 21. Furthermore, in each protrusion 20, the inner foot side end of the front second outer forming portion 24 is aligned with the inner foot side end of the central forming portion 21. Therefore, in the foot width direction of the central forming portion 21, the front second outer forming portion 24 protrudes forward from half of the inner foot side.

[0035] Furthermore, in each protrusion 20, the outer foot side end of the rear second outer forming portion 24 is aligned with the outer foot side end of the central forming portion 21. Therefore, in the foot width direction of the central forming portion 21, the rear second outer forming portion 24 is formed protruding rearward from half of the outer foot side. In this way, the front second outer forming portion 24 (one of a pair of second outer forming portions 24) is formed at a staggered position in the foot width direction relative to the rear second outer forming portion 24 (the other of a pair of second outer forming portions 24).

[0036] By setting the width and formation position of each first outer forming portion 23 and each second outer forming portion 24 as described above, adjacent protrusions 20 in the arrangement direction of each protrusion 20 can be brought closer together. As a result, a design that increases the number of protrusions 20 formed in the outer bottom 10 can be adopted.

[0037] Each protrusion 20 on the lower surface of the outer bottom 10, except for the outer edge of the outer bottom 10, the bending groove 11a, the branch groove 11b, and the recess 15 (all refer to...) Figure 1 In addition to being adjacent to each other, the first outermost forming portion 23 of each protrusion 20 is adjacent to other protrusions 20 in both the foot width direction and the front-back direction. Specifically, in each protrusion 20, the front end of the first outermost forming portion 23 on the inner foot side is adjacent to the rear end of the first outermost forming portion 23 on the outer foot side of the other protrusion 20 adjacent on the inner foot side. In other words, in each protrusion 20, the rear end of the first outermost forming portion 23 on the outer foot side is adjacent to the front end of the first outermost forming portion 23 on the inner foot side of the other protrusion 20 adjacent on the outer foot side.

[0038] The first outer forming portion 23 has a first deformable region 23a, which is set as a region opposite to the first outer forming portion 23 disposed adjacent to it in the front-back direction.

[0039] For adjacent protrusions 20 in the front-rear direction, their second outermost forming portions 24 are arranged adjacently in the leg width direction. Specifically, in each protrusion 20, the outermost end of the front second outermost forming portion 24 is arranged adjacent to the innermost end of the rear second outermost forming portion 24 of the adjacent front protrusion 20. In other words, in each protrusion 20, the innermost end of the rear second outermost forming portion 24 is arranged adjacent to the outermost end of the front second outermost forming portion 24 of the adjacent rear protrusion 20.

[0040] The second outer forming portion 24 has a second deformable region 24a, which is configured as a region opposite to the second outer forming portion 24 disposed adjacent to it in the foot width direction.

[0041] Here, in each protrusion 20, a gap 26 is formed between the end of each first outer forming portion 23 and each second outer forming portion 24 on the side opposite to the central forming portion 21, and between the central forming portion 21 of the other protrusions 20 adjacent to that end. This gap 26 forms the area in the outsole 10 where no protrusions 20 are formed. In this embodiment, the area surrounded by the four protrusions 20 arranged along the width and front-back directions includes the four gaps 26 and is formed in a windmill shape similar to the protrusions 20. Through this windmill-shaped area, a recess 27 is formed that is recessed upward (towards the depth side of the paper in the figure), and the area in the recess 27 other than the gaps 26 is formed into a roughly square central region 28.

[0042] Here, use Figure 3 Figure 4 further illustrates the first outer outer forming portion 23 and the second outer outer forming portion 24. Figure 3 It is Figure 1 An enlarged illustration of a portion of the protrusion. Figure 4A yes Figure 3 AA line cross-section diagram, Figure 4B yes Figure 3 The BB line cross-section diagram. (See attached image.) Figure 3 and Figure 4A As shown, each of the first outer outer forming portions 23 is formed in a shape that gradually tapers downwards. Therefore, a V-shaped groove is formed between adjacent first outer outer forming portions 23 in cross-section, and the first outer outer forming portions 23 are in contact with each other at the upper part (bottom) of the groove.

[0043] In addition, such as Figure 4B As shown, each of the second outer forming portions 24 is also formed in a shape that gradually tapers downwards. Therefore, a V-shaped groove is formed between adjacent second outer forming portions 24 in cross-section, and the second outer forming portions 24 contact each other at the upper (bottom) of this groove. Furthermore, in the outer bottom 10 of this embodiment, Figure 4A The shape shown is similar to Figure 4B The shapes shown are the same.

[0044] return Figure 1 The protrusion 20 of the second region A2, relative to the protrusion 20 of the first region A1, has a circular recess 21a formed at the center of the central forming portion 21. The protrusion 20 of the second region A2, except for the recess 21a, is formed in the same manner as the protrusion 20 of the first region A1. Furthermore, the protrusion 20 of the third region A3 has a different orientation relative to the protrusion 20 of the second region A2. Figure 1In the middle, they are arranged in a slightly counterclockwise direction. The protrusions 20 in the third region A3 are formed in the same way as the protrusions 20 in the second region A2, except that the orientation and arrangement of the protrusions 20 are changed. The protrusions 20 without the recessed portion 21a have higher rigidity than those with the recessed portion 21a. In this embodiment, as a structure in the first region A1 corresponding to the big toe and the ball of the big toe, the rigidity is improved by not forming the recessed portion 21a in the protrusions 20. Furthermore, whether or not the recessed portion 21a is formed in each of the protrusions 20 of the outsole 10 can be freely selected. For example, a structure in which the recessed portion 21a is formed in all the protrusions 20 of the outsole 10, a structure in which the recessed portion 21a is not formed in all the protrusions 20 of the outsole 10, or a structure in which the recessed portion 21a is formed in at least one of the protrusions 20 can be used. Alternatively, a structure may be adopted in which each protrusion 20 in at least one of the first to third regions A1 to A3 forms a recess 21a, while each protrusion 20 in other regions does not form a recess 21a.

[0045] Next, the outer bottom 10 touches the ground surface G (refer to...). Figure 4A The elastic deformation of each protrusion 20 during landing (hereinafter referred to as "at the moment of impact") will be explained. At the moment of impact, depending on the player's movement, force is applied to the outsole 10 from various directions from the contact surface G. In the concave portion 27, the central region 28 has large dimensions in both the foot-width direction and the fore-aft direction, so force easily acts from this central region 28 towards the protrusion 20. Hereinafter, firstly, referring to... Figure 5 The following describes the situation where the badminton shoe 1 touches the ground surface G during its backward movement, and a force from the rear to the front (force from the rear) is applied to each protrusion 20.

[0046] Figure 5 This shows the state of the protrusion deformed due to a force from behind. Figure 2 The same enlarged image. Furthermore, for Figure 5 The deformation of the protrusion is illustrated in a simplified form, showing only a portion of the deformation (described later). Figure 6 Similarly). Figure 5 As shown, when a force from the rear is applied to each protrusion 20, a force from rear to front acts on the central region 28 of the recess 27. Consequently, the first outermost forming portion 23 on the inner leg side, opposite to the front side of the central region 28, elastically deforms in a forward-tilting manner. Through this deformation, the first outermost forming portion 23 on the inner leg side fits precisely into the contact surface G (see reference). Figure 4A Therefore, it can limit the outsole 10 from slipping backward relative to the contact surface G when landing, and can exert backward grip performance.

[0047] The first outer lateral forming portion 23 on the outer foot side is covered from behind by the first outer lateral forming portion 23 on the inner foot side of the adjacent protrusion 20 on the outer foot side. Therefore, compared with the first outer lateral forming portion 23 on the inner foot side, the force exerted on the first outer lateral forming portion 23 on the outer foot side is smaller, and the amount of deformation is also smaller. Regarding the first outer lateral forming portion 23 on the outer foot side with smaller deformation, excessive deformation can be suppressed by supporting the first outer lateral forming portion 23 on the inner foot side of the other protrusions 20 that deform in a forward tilting manner. As a result, the first outer lateral forming portion 23 on the inner foot side can deform moderately, thus providing good rearward grip performance.

[0048] The first outermost forming portion 23 on the inner foot side deforms toward the first deformation region 23a in the direction of approaching the first outermost forming portion 23 on the front adjacent to the outer foot side. When the applied force is released, the first deformation region 23a returns to its original state (deforms) in the direction away from the first outermost forming portion 23 on the front adjacent to the outer foot side.

[0049] The central forming portion 21 does not overlap with the central region 28 in the front-rear direction, and its length in the front-rear direction is longer than that of the first outer forming portion 23. The second outer forming portions 24 on both the front and rear sides are not overlapped with the central region 28 in the front-rear direction, but are arranged to overlap with the central forming portion 21 in the front-rear direction. Therefore, when a force is applied from the rear, the central forming portion 21 and each of the second outer forming portions 24 deform less than that of the first outer forming portion 23 on the inner foot side. This small deformation of the central forming portion 21 and each of the second outer forming portions 24 allows them to deform at different times than the first outer forming portion 23 on the inner foot side, thus achieving the desired grip performance.

[0050] exist Figure 5 The text describes the situation where a force from the rear is applied to each protrusion 20. However, when a force is applied from a direction that has been displaced by a specified angle from the rear, each protrusion 20 will also deform to the same degree as... Figure 5 Similar shapes. For example, for Figure 5 The force applied from 5 o'clock to 8 o'clock causes each protrusion 20 to deform into the shape of... Figure 5 Similar shapes enable them to exert grip in the direction in which force is applied.

[0051] Furthermore, when a force from the front is applied to each protrusion 20, it becomes... Figure 5 It can achieve forward grip even when rotated 180°. Furthermore, when force is applied from a direction that has shifted a specified angle from the front, it also provides better grip compared to... Figure 5 When rotated 180°, each protrusion 20 deforms into a similar shape. For example, for... Figure 5 The force applied from 11 o'clock to 2 o'clock causes each protrusion 20 to deform into the shape of... Figure 5 Similar shapes enable them to exert grip in the direction in which force is applied.

[0052] Next, refer to Figure 6 The following describes the situation where the badminton shoe 1 touches the ground surface G during its movement toward the outside foot, and a force (force from the outside foot side) is applied to each protrusion 20 from the outside foot side toward the inside foot side.

[0053] Figure 6 This shows the state in which the protrusion is deformed due to the force from the outer foot side. Figure 2 The same enlarged image. (Example) Figure 6 As shown, when a force from the outer foot side is applied to each protrusion 20, a force from the outer foot side to the inner foot side acts in the central region 28 of the recess 27. Consequently, the second outermost forming portion 24 on the rear side, opposite to the inner foot side of the central region 28, elastically deforms in a manner that tilts towards the inner foot side. Through this deformation, the second outermost forming portion 24 on the rear side fits precisely into the contact surface G (see reference). Figure 4A Therefore, it can limit the slippage of the outsole 10 relative to the contact surface G towards the outside foot when landing, and can exert the grip performance towards the outside foot.

[0054] The front second outer forming portion 24 is covered from the outer foot side by the second outer forming portion 24 on the rear side of the adjacent front protrusion 20. Therefore, the force acting on the front second outer forming portion 24 is smaller and the deformation is smaller compared to the rear second outer forming portion 24. Regarding the front second outer forming portion 24 with smaller deformation, excessive deformation can be suppressed by supporting the rear second outer forming portion 24 of the other protrusions 20 that deform in a way that tilts towards the inner foot side. As a result, the rear second outer forming portion 24 can deform moderately, providing good grip performance.

[0055] The second outermost forming portion 24 on the rear side deforms toward the second deformation region 24a in the direction of approaching the second outermost forming portion 24 on the front side adjacent to the inner foot side. When the applied force is released, the second deformation region 24a returns to its original state (deforms) in the direction away from the second outermost forming portion 24 on the front side adjacent to the inner foot side.

[0056] The central forming portion 21 does not overlap with the central region 28 in the foot-width direction, and its length in the foot-width direction is longer than that of the second outer forming portion 24. The first outer forming portions 23 on both sides of the foot-width direction do not overlap with the central region 28 in the foot-width direction, but are arranged to overlap with the central forming portion 21 in the foot-width direction. Therefore, when a force is applied from the outer foot side, the central forming portion 21 and each of the first outer forming portions 23 deform less than the rear second outer forming portion 24. This small deformation of the central forming portion 21 and each of the first outer forming portions 23 allows them to deform at different times than the rear second outer forming portion 24, thus achieving the desired grip performance.

[0057] exist Figure 6 The text describes the situation where a force from the outer foot side is applied to each protrusion 20. However, when a force is applied from a direction that has been displaced by a predetermined angle from the outer foot side, each protrusion 20 will also deform to the same degree as... Figure 6 Similar shapes. For example, for Figure 6 The force applied from the 2 o'clock to the 5 o'clock direction causes each protrusion 20 to deform into the shape of... Figure 5 Similar shapes enable them to exert grip in the direction in which force is applied.

[0058] Furthermore, when a force from the inner side of the foot is applied to each protrusion 20, it becomes... Figure 6 It achieves a 180° rotation, enabling better grip towards the inside of the foot. Furthermore, when force is applied in a direction that has shifted a predetermined angle from the inside of the foot, it also provides better grip compared to... Figure 6 When rotated 180°, each protrusion 20 deforms into a similar shape. For example, regarding the state where... Figure 6 The force applied from 8 o'clock to 11 o'clock causes each protrusion 20 to deform into the same direction. Figure 6 Similar shapes enable them to exert grip in the direction in which force is applied.

[0059] As described above, in this embodiment, by deforming the adjacent first outer forming portion 23 and the adjacent second outer forming portion 24, good grip performance can be achieved in any direction of 360° upon landing. This allows for a firm footing. Consequently, reflexive and counter-attacking movements upon landing are stabilized, enabling rapid and fluid footwork.

[0060] Furthermore, the present invention is not limited to the embodiments described above and can be implemented with various modifications. In the above embodiments, the size, shape, orientation, etc., shown in the accompanying drawings are not limited thereto and can be appropriately modified within the scope of achieving the effects of the present invention. In addition, appropriate modifications can be made without departing from the scope of the purpose of the present invention.

[0061] For example, in the above embodiment, in the first region A1 and the second region A2, the first direction that will be the arrangement direction of the protrusions 20 is set as the foot width direction, and the second direction is set as an orthogonal two-axis direction of the front-back direction, but it is not limited to this. The arrangement direction of the protrusions 20 may also be inclined relative to the foot width direction and the front-back direction, as in the third region A3, or it may be a curved or tortuous direction. In addition, the first direction and the second direction need to be intersecting, and are not limited to being orthogonal.

[0062] In addition, such as Figure 4A As shown, the first outer forming portions 23 are arranged adjacent to each other in the front-back direction. However, within the scope of achieving the same performance as the above embodiment, a gap can be provided between the adjacent first outer forming portions 23 to create a positional relationship in which the first outer forming portions 23 are arranged close to each other. Similarly, as Figure 4B As shown, the second outer forming portions 24 are arranged adjacent to each other in the foot width direction. However, within the scope of achieving the same performance as the above embodiment, a gap can be provided between the adjacent second outer forming portions 24 to set the positional relationship in which the second outer forming portions 24 are arranged close to each other.

[0063] Furthermore, the central forming portion 21, the first outer forming portion 23, the second outer forming portion 24, and the gap 26 and central region 28 of the recess 27 are not limited to the shape shown in the figure, and can be other shapes such as rectangles, polygons, circles, ellipses, etc.

[0064] Industrial availability

[0065] This invention relates to athletic shoes that effectively utilize the grip performance of multiple protrusions arranged on the outsole.

[0066] This application is based on Japanese Special Application 2020-182055, filed on October 30, 2020. The entire contents of that application are contained herein.

Claims

1. A sports shoe having an outsole that contacts the ground, characterized in that, The outsole has at least one downwardly projecting protrusion on its lower surface, which is arranged in a plurality of protrusions along intersecting first and second directions. Each of the plurality of protrusions has a central forming portion, a pair of first outer forming portions protruding from the central forming portion to both sides in the first direction, and a pair of second outer forming portions protruding from the central forming portion to both sides in the second direction. The first outermost forming portion is disposed adjacent to or close to the first outermost forming portions of the other protrusions adjacent in the first direction in the second direction, so as to be supported by the first outermost forming portions of the other protrusions adjacent in the first direction when deformed in a manner that tilts towards the second direction. The second outer forming portion is disposed adjacent to or close to the second outer forming portion of the other protrusions adjacent in the second direction in the first direction, so as to be supported by the second outer forming portion of the other protrusions adjacent in the second direction in a deformed state in a tilting manner toward the first direction.

2. The athletic shoe according to claim 1, characterized in that, The first outer forming portion has a first deformation region that deforms in a direction in which the first outer forming portions arranged adjacent to or close to each other in the second direction approach or move away from each other. The second outer forming portion has a second deformation region that deforms in the direction in which the second outer forming portions arranged adjacent to or close to each other in the first direction approach and move away from each other.

3. The athletic shoe according to claim 1, characterized in that, 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 width of the second outer portion in the first direction is smaller than the width of the central portion in the first direction.

4. The athletic shoe according to claim 1, characterized in that, The first outer outer portion is formed at a position offset from the other side of the first outer outer portion in the second direction. The second outer forming portion is formed at a position offset from the other side of the second outer forming portion in the first direction.

5. The athletic shoe according to claim 1, characterized in that, The first direction and the second direction are set as orthogonal axes.

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

Images