shoe

Abstract

The present invention provides a shoe that can improve the flexibility of a necessary part without compromising rigidity. The shoe (1) comprises: an outer sole (2) having a contact surface (8) in contact with the ground; and an upper (4) directly or indirectly mounted on the outer sole (2) on the side opposite to the contact surface (8), the outer sole (2) having an outer sole body (10) and a rolled-up portion (12) extending from the edge of the outer sole body (10) toward the upper (4), and the outer sole (2) having a flexion area (16), wherein the flexion area (16) is formed with at least one cutout (18) extending from the outer sole body (10) to the rolled-up portion (12).

Description

Technical Field

[0001] The present invention relates to a pair of shoes, in particular to a pair of shoes for sports. Background Art

[0002] The functions and performances required of sports shoes in each competition are different. On the other hand, in many competitions, the common point is that the upper, outer sole and other parts of the shoe are basically required to have a certain degree of rigidity. For example, in skateboarding, when performing some tricks, the upper and the vicinity of the upper of the shoe may sometimes come into contact with the board. Therefore, for example, for skateboarding shoes, the rigidity of the upper, outer sole and other parts is required to be further improved.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: U.S. Design Gazette No. 639031

[0006] Patent Document 1 describes a shoe protector for preventing wear of a shoe upper. Summary of the invention

[0007] Problems to be solved by the invention

[0008] The technique described in Patent Document 1 can improve the rigidity of the shoe upper. However, in skateboarding competitions, the shoe upper is sometimes required to bend, and if the rigidity of the shoe upper is too high and the flexibility is insufficient, the wearer's movement may be hindered.

[0009] The location where flexibility is required differs depending on the movement required by the wearer, which means that the location where flexibility is required differs for each type of shoe.

[0010] The present invention has been made in view of these actual circumstances, and an object of the present invention is to provide a shoe that can improve the flexibility of a necessary portion without sacrificing rigidity.

[0011] Technical means of solving problems

[0012] In order to solve the above-mentioned problems, the shoe according to the present invention comprises: an outsole having a contact surface that contacts the ground; and an upper that is directly or indirectly mounted on the outsole on the side opposite to the contact surface; the outsole has an outsole body and a rolled-up portion extending from the edge of the outsole body toward the upper, and the outsole has a flexion area, and the flexion area is formed with at least one cut extending from the outsole body to the rolled-up portion.

[0013] Effects of the Invention

[0014] According to the present invention, the flexibility of a necessary portion can be improved without sacrificing rigidity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a side view of the shoe according to the first embodiment.

[0016] Figure 2 It is a bottom view of the shoe.

[0017] Figure 3 yes Figure 2 A cross-sectional view of section AA is shown.

[0018] Figure 4 yes Figure 2 A cross-sectional view of section BB is shown.

[0019] Figure 5 yes Figure 2 A cross-sectional view of the CC section is shown.

[0020] Figure 6 It is a top view of the main parts of the shoe.

[0021] Figure 7 It is a top view of the shoe based on the second embodiment.

[0022] Figure 8 is a side view of the shoe.

[0023] [Explanation of Symbols]

[0024] 1: Shoes

[0025] 2: Outsole

[0026] 4: Upper

[0027] 6: Midsole

[0028] 8: Touching the ground

[0029] 10: Outsole body

[0030] 12: Roll-up

[0031] 14: Horn

[0032] 16: Buckling region

[0033] 18: Incision

[0034] 20: Upper protective layer

[0035] 22: Eyelets

[0036] 24: Slit

[0037] 26: Tongue

[0038] 28: Shoelaces

[0039] 30: Protection and Strengthening Department

[0040] 32: Flexibility imparting part

[0041] 100: Shoes

[0042] 102: Upper

[0043] 104: Front upper

[0044] 106: Rear upper

[0045] 108: Backend

[0046] 110: Seam

[0047] 112: Strengthening Department

[0048] 114: Opening

[0049] 116: belt

[0050] L: Curve DETAILED DESCRIPTION

[0051] The following is a description of an embodiment of the present invention. The same symbols are used for the same components, and repeated descriptions are omitted. In each of the drawings, for the sake of convenience, a part of the components is appropriately omitted, or the size thereof is appropriately enlarged or reduced. In addition, a part of the components that are not important in describing the embodiment is omitted in each of the drawings. In the embodiment, a skateboard shoe is cited as an example for detailed description. In addition, in addition to skateboard shoes, the present invention can also be applied to various shoes for competitions such as walking, tennis, basketball, football, volleyball, wrestling, cycling, skiing, etc.

[0052] In the following embodiments, terms indicating up and down and front and back directions are used. Up and down means the upper direction or the lower direction (ground contact) when the shoe is placed on the ground, front means the toe side, and back means the heel side.

[0053] First, refer to Figures 1 to 5 The first embodiment is described. Figures 1 to 5 As shown, the shoe 1 mainly includes an outsole 2 constituting the bottom of the shoe 1 , an upper 4 covering the instep, and a midsole 6 laid on the upper surface of the outsole 2 .

[0054] The outer sole 2 is formed by, for example, molding rubber into a predetermined shape. In this embodiment, an example using a so-called cupsole as the outer sole 2 is described, but the present invention can also be applied to a so-called vulcanized sole. The outer sole 2 has a contact surface 8 that contacts the ground. A predetermined concave-convex pattern is formed on the contact surface 8 to improve the grip with the ground.

[0055] The midsole 6 plays a role in absorbing shocks, and is formed of a shock-absorbing material such as foamed ethylene vinylacetate (EVA), foamed urethane, gel (GEL), or cork. The thickness of the midsole 6 can be appropriately set according to the purpose of the shoe 1. For example, in shoes for games with a lot of jumping, such as basketball, the midsole 6 is preferably thickened. The midsole 6 is not a necessary structure and may not be provided.

[0056] like Figures 3 to 5 As shown, the outsole 2 comprises: an outsole main body 10, which is formed of a sheet body in a substantially flat foot shape; and a rolled portion 12, which extends from the edge of the outsole main body 10 toward the upper. The bottom surface of the outsole main body 10 constitutes a contact surface 8, and a midsole 6 is arranged on the upper surface of the outsole main body 10. The shape of the outsole main body 10 does not need to be set as a flat sheet with uniform thickness, and a concave-convex or inclined shape that matches the shape of the sole of the foot can also be formed on the upper surface of the outsole main body 10. The midsole 6 is arranged on the upper surface of the outsole 2. The outsole main body 10 and the rolled portion 12 are formed of materials such as foamed or non-foamed rubber, urethane resin, etc. In addition, the outsole main body 10 and the rolled portion 12 are preferably formed in one piece, but can also be a member formed by combining separately formed members.

[0057] The rolled portion 12 is formed by a peripheral wall that rises upward from the edge of the outer sole body 10. More specifically, the rolled portion 12 extends upward from the upper surface of the outer sole body 10 or the bottom surface of the midsole 6. The rolled portion 12 increases the rigidity of the shoe 1. The rigidity of the shoe 1 refers to bending rigidity and torsional rigidity. In order to increase the rigidity, the shoe provided with the rolled portion 12 can improve at least one of durability including wear resistance and stability of the shoe relative to the movement of the wearer. The position of the upper end of the rolled portion 12 can be appropriately changed according to the type of competition in which the shoe 1 is used. For example, in the case of a skateboard shoe such as the embodiment, since high stability is required, it is preferred to set the position of the upper end of the rolled portion 12 to a position that is at least higher than the upper surface of the midsole 6 and covers a portion of the upper 4. The rolled portion 12 extends over the entire circumference and full length of the outer sole body 10. Therefore, the outer sole 2 has a foot-shaped cup shape.

[0058] The height of the roll-up portion 12 can be uniform or different according to the position. For example, when the toe side requires rigidity, the roll-up portion 12 can be lowered on the heel side and raised on the toe side, or the height can be changed inside and outside the width direction.

[0059] In the case of a skateboard shoe as in the present embodiment, the intersection of the roll-up portion 12 and the contact surface 8 (i.e., the angle 14) is preferably substantially at a right angle. This structure can be applied to competitions in which the intersection with the roll-up portion 12 is used to control the board. In addition, in shoes used for other competitions, the angle 14 may not be a right angle. For example, the roll-up portion 12 may be formed into a trumpet shape whose width becomes wider as it approaches the contact surface 8, and the angle 14 may be an acute angle, or the intersection may be connected by a curved surface.

[0060] In addition, the rolled portion 12 has a flexion area 16 that improves the flexibility of the shoe 1. The flexion area 16 is an area that improves the flexibility of the shoe 1 as a whole, especially the flexibility of the outsole 2. In the skateboard shoe based on the embodiment, the flexion area 16 is provided in the outer foot side forefoot portion (the portion on the toe side and outside in the width direction). Here, the forefoot portion refers to the 50% range from the toe when the total length of the shoe is set to 100%. The position where the flexion area is provided can be appropriately changed according to the type of competition in which the shoe is used. For example, when the inner foot side forefoot portion of the shoe (the portion on the toe side and inside in the width direction) requires flexion, the flexion area can also be provided only in the inner foot side forefoot portion. In addition, when the entire forefoot portion as a whole requires flexibility, the flexion area can also be provided in both the outer foot side forefoot portion and the inner foot side forefoot portion.

[0061] The flexure region 16 is formed by forming at least one cutout 18 in the roll-up portion 12. The cutout 18 has a predetermined width in the front-rear direction and extends in a manner that crosses the roll-up portion 12 in the top-bottom direction. The number of cutouts 18 may be one or more and may be appropriately changed according to the required flexibility. In the present embodiment, four cutouts are provided. For example, when high flexibility is required, the number of cutouts 18 may be increased, and conversely, when mild flexibility is required, the number of cutouts 18 may be reduced.

[0062] The width of the incision 18 in the front-to-back direction can be changed according to the purpose of the shoe, for example, preferably between 1mm and 8mm. In addition, the width of the incision 18 in the front-to-back direction can also be determined according to the width of the outer sole body 10 adjacent to the incision 18 in the front-to-back direction. In this case, the width of the incision 18 is preferably 1 / 5 to 1 / 2 of the width of the adjacent outer sole body 10. In the present embodiment, the width of the incision in the front-to-back direction is set to about 5mm. When a plurality of incisions 18 are formed, the width of all incisions 18 can be the same, or the width of the incision 18 can be changed according to the position in the front-to-back direction. In addition, the width of each incision 18 can also be changed according to the position in the extension direction.

[0063] The cutout 18 extends from the upper end of the rolled portion 12 to the vicinity of the center in the width direction of the contact surface 8. The length of the cutout 18 can be appropriately changed according to the type of competition in which the shoe is used. In the shoe 1 requiring high flexibility such as a skateboard shoe, it is preferred that the cutout 18 extends from the upper end of the rolled portion 12 to the vicinity of the center in the width direction of the contact surface 8. On the contrary, when light flexibility is required, the cutout may be set to a length extending from the upper end of the rolled portion to the contact surface.

[0064] As shown in the figure, the cutout 18 extends from the upper end of the rolled portion 12 to the middle of the tread surface 8 in the width direction, so that the midsole 6 is exposed from the cutout 18. In other words, this structure can improve the strength of the side surfaces of the outer sole 2 and the midsole 6, thereby further improving the flexibility.

[0065] In addition, the cutout 18 may be terminated at the lower end of the rolled portion 12 or in the middle of the height direction of the rolled portion 12. When the cutout 18 is terminated in the middle of the height direction of the rolled portion 12, the height direction position of the flexion region 16 can be adjusted. In this case, the terminal position of the rolled portion 12 is preferably located at least below the bottom surface of the midsole 6 or the upper surface of the outsole 2.

[0066] The position of the cutout 18 can be appropriately changed according to the required flexion. When the cutout 18 extends to the contact surface 8, it is preferable to determine the position of the cutout 18 in consideration of the position of the metatarso-phalangeal (MP) joint. The position of the MP joint corresponds to a position within a range of 25% to 45% from the front end of the shoe 1. By forming the cutout 18 extending to the contact surface 8 at a position corresponding to the MP joint, when the toes are bent, the contact surface 8 can be deformed along the MP joint, and high flexion can be achieved.

[0067] In addition, in the case where the plurality of cutouts 18 extend to the contact surface 8 (in Figure 2 In the example of FIG. 1 , the end of the cutout 18 located on the contact surface 8 is arranged to form a curve L near the center in the width direction. The curve L has a shape that bulges outward in the width direction of the shoe. By setting the end of the cutout 18 in this configuration, the shoe 1 can be given flexibility according to the pedaling pressure balance of the sole of the foot. In addition, the imaginary line that determines the end position of the cutout 18 is not limited to the curve L, and a straight line or a zigzag line can be used according to the purpose of the shoe.

[0068] like Figure 6As shown, the upper 4 includes: an upper protective layer 20, a fastening member (fastening structure) of the upper 4; and a slit 24 extending in the front-rear direction of the upper 4 near the center in the width direction of the upper 4. In addition, a shoe tongue 26 is attached to the upper 4. In this embodiment, as the fastening member, a structure based on a combination of eyelets 22 and shoelaces 28 is adopted, but Velcro or the like may also be used as the fastening member.

[0069] The upper 4 is formed of a mesh material woven from synthetic fibers such as polyester and polyurethane, synthetic leather, or natural leather, and has a shape that covers the instep. The slit 24 is a buffer portion for adjusting the width of the upper 4 according to the tightening of the shoelace 28. A plurality of eyelets 22 are provided on both sides of the slit 24 in the width direction. The tongue 26 is exposed from the slit 24, and when the shoelace 28 is attached, the shoelace 28 does not contact the instep of the wearer.

[0070] The upper protective layer 20 is formed of, for example, urethane resin that protects the upper 4 formed of cloth. The upper protective layer 20 is particularly preferably provided on shoes used in games in which a board such as skateboarding contacts the upper, or in games such as soccer or futsal in which a ball contacts the upper 4. On the other hand, in games in which it is not assumed that the shoe contacts other equipment, the upper protective layer may not be provided.

[0071] The upper protective layer 20 may be formed by coating the upper 4 substrate instead of attaching the urethane resin integrally formed material to the upper 4 as described above. In addition, when forming the upper 4, the upper substrate itself may be thickened by braiding or weaving the portion corresponding to the upper protective layer 20 with thicker threads than other portions. In addition, when forming the upper 4, the portion corresponding to the upper protective layer 20 may be braided (woven) denser than other portions.

[0072] The slit 24 may extend in the front-rear direction of the upper 4 at the center in the width direction, but in the present embodiment, it has a shape that is curved in a manner that moves away from the flexion region 16 in the width direction as it moves forward, and is formed to be offset to the inner side in the width direction of the shoe 1 relative to the center in the width direction of the shoe 1. Therefore, in the present embodiment, the width of the upper 4 becomes wider at the outer side in the width direction of the slit 24, and the width of the upper 4 becomes narrower at the inner side in the width direction of the slit 24. The upper protective layer 20 is provided on the side where the width of the upper 4 becomes wider. Therefore, when the front half of the shoe is observed by looking down at the shoe, the area where the upper protective layer 20 is provided (i.e., the area outside the width direction of the slit) is larger than the area where the upper protective layer 20 is not provided and the upper 4 is exposed (i.e., the area inside the width direction of the slit).

[0073] The position where the upper protective layer 20 is provided can be changed according to the use of the shoe 1, and is preferably determined according to the position relative to the flexion area 16. More specifically, the upper protective layer 20 is formed on the side where the flexion area 16 is provided relative to the center in the width direction of the shoe 1. When designing the upper 4, the side (inner side or outer side) where the flexion area 16 is provided is first determined, and the upper protective layer 20 is arranged on the side where the flexion area 16 is provided, and the shape of the slit 24 is determined in such a way that the last slit 24 is biased toward the side away from the flexion area 16. Since the upper protective layer 20 is formed of a harder material than other parts of the upper, if the upper protective layer 20 is used to cover the entire upper 4, the upper 4 will become too hard. However, by arranging the upper protective layer 20 only on the side that needs to be protected, that is, the side where the flexion area 16 is provided, the upper 4 can be prevented from becoming too hard as a whole, and the area of ​​the region protecting the upper 4 can be increased.

[0074] The upper protective layer 20 preferably has a width from the upper end of the rolled portion 12 to the slit 24 in the width direction of the shoe 1. One end of the upper protective layer 20 in the width direction may be in contact with the rolled portion 12, or may form a gap with the rolled portion 12. In addition, the other end of the upper protective layer 20 in the width direction extends to the vicinity of the slit 24, preferably covering the row of eyelets 22 arranged on the outer side in the width direction to protect the eyelets 22.

[0075] The shape and position of the upper protective layer 20 can be appropriately changed according to the purpose of the shoe.

[0076] The upper protective layer 20 includes a thick-walled protective reinforcement portion 30 and a flexibility imparting portion 32 thinner than the protective reinforcement portion 30. The flexibility imparting portion 32 is designed with the same concept as the incision 18, and is formed into a curved or straight line extending in the width direction along the MP joint. More preferably, the flexibility imparting portion 32 is formed along the extension line of the incision 18 and describes a line together with the incision 18. In addition, in this case, the incision 18 and the flexibility imparting portion 32 do not necessarily need to be continuous. In the case where there is a distance between the upper protective layer 20 and the upper end of the rolled-up portion 12, there may be a gap between the incision 18 and the flexibility imparting portion 32. In addition, by making the incision 18 and the flexibility imparting portion 32 describe a line, smooth flexion can be promoted.

[0077] The protection reinforcement part 30 and the flexibility imparting part 32 do not need to have a constant thickness over the entire upper protective layer 20, and the thickness of the protection reinforcement part 30 and the flexibility imparting part 32 may be adjusted according to the position. In addition, the protection reinforcement part 30 may be formed into a wavy shape such that the thickness gradually decreases and moves toward the flexibility imparting part 32.

[0078] In addition, the shoe 1 according to the present embodiment has a structure having the slit 24, but the present invention can also be applied to a mono sock type shoe without the slit. In the mono sock type shoe, assuming a shape that is curved in a manner that moves away from the flexion region 16 in the width direction as it moves forward, it is sufficient to provide the upper protection layer 20 on one side of the width direction of the line.

[0079] The tongue 26 extends from the front end of the slit 24 toward the rear, and at least extends to a position further rearward than the uppermost eyelet 22 (the eyelet 22 located at the rearmost) of the multi-layer eyelets 22. More preferably, the rear end of the tongue 26 is formed to be folded back toward the front, and the tongue 26 has a length such that the rear end of the tongue 26 is further forward than the uppermost eyelet 22 when folded back. By setting the length of the tongue 26 in this way, the tangle of the shoelace 28 can be covered by the tongue 26, and the shoelace 28 can be protected by the tongue 26. In addition, the tongue 26 is not necessarily a structure, and the present invention can also be applied to shoes without the tongue 26. In addition, instead of a structure in which the front end of the tongue 26 is fixed to the front end of the slit 24 and extends toward the rear, a so-called split tongue in which the ends in the width direction are fixed to the left and right ends of the slit 24 and the center portion of the tongue is divided into left and right may be adopted.

[0080] In the following description, the same reference numerals as those in the first embodiment are given to the same components as those in the first embodiment, and detailed descriptions thereof are omitted.

[0081] Figure 7 is a top view of the shoe according to the second embodiment. Figure 8 is a side view of the shoe. Figure 7 and Figure 8 As shown, the shoe 100 is a so-called slip-on type shoe having no fastening parts.

[0082] The shoe 100 includes an upper 102 that covers the instep. The upper 102 covers the instep from the medial foot side to the lateral foot side in the forefoot and midfoot parts.

[0083] The shoe upper 102 may be formed of a seamless piece of fabric, or may be formed by sewing a plurality of pieces of fabric together in order to more easily achieve a three-dimensional shape.

[0084] In the illustrated example, the upper 102 is formed by sewing two pieces of cloth. The illustrated upper 102 includes a front upper 104 that mainly covers the outer foot portion, and a rear upper 106 that mainly covers the inner foot portion. The front upper 104 and the rear upper 106 are continuous, and the two are joined to each other by means such as sewing. The front end of the front upper 104 is bent along the front end of the shoe 100. The rear end 108 of the front upper 104 is inclined relative to the front-to-back direction and the width direction in a manner that extends toward the outer foot side and toward the rear side. The inner foot side of the rear end 108 of the front upper 104 is located at the portion covering the big toe, and the outer foot side is located at the rear side more than the portion covering the little toe. The front end of the rear upper 106 extends along the rear end 108 of the front upper 104.

[0085] A seam portion 110 is formed between the front upper 104 and the rear upper 106. The seam portion 110 is joined along the rear end 108 of the front upper 104. The seam portion 110 is inclined relative to the front-rear direction and the width direction in a manner extending rearward toward the outer foot side, similarly to the rear end 108. The seam portion 110 can be formed by sewing the front upper 104 and the rear upper 106. In addition, the sewn portion can also be covered with another reinforcement fabric. The seam portion 110 is set at a position where the frequency of contact between the skateboard and the upper 102 is low during a skateboarding competition. As a result, the possibility of the seam portion 110 being damaged due to contact between the skateboard and the seam portion 110 can be reduced.

[0086] When the upper 102 is composed of two or more parts, it is preferable to make the joint of each part in a position that is not easy to contact with the slide plate. The so-called position that is not easy to contact with the slide plate means that at least the front end of the joint is located on the inner foot side. In addition, when the upper 102 is formed of a single piece of cloth, the end of the cloth can be prevented from being exposed on the surface, which can reduce the possibility of the slide plate contacting the end of the cloth and damaging the cloth.

[0087] In addition, the front upper 104 includes a reinforcement portion 112 extending along the front end. The reinforcement portion 112 extends continuously from the portion covering the big toe to the rear side of the portion covering the little toe on the outer foot side. The reinforcement portion 112 extends to a position higher than the upper end of the rolled-up portion 12 and further to the upper side. The reinforcement portion 112 is formed of a material having a higher wear resistance and durability ratio than the material forming the front upper 104. The reinforcement portion 112 is formed of a material coated with rubber or urethane, etc., as long as at least its surface has high wear resistance. The wear resistance of the shoe 100 is preferably increased from the upper side to the lower side. The reinforcement portion 112 is preferably provided continuously from the portion covering the big toe to the rear side of the portion covering the little toe on the outer foot side, but may also be partially cut off.

[0088] In addition, the rear upper 106 includes a band 116 made of elastic material to change the size of the opening 114 for inserting the foot. The band 116 defines a portion of the opening 114. When the wearer inserts the foot into the opening 114, the band 116 is extended by the force applied from the foot to the rear upper 106, thereby expanding the opening 114. When the foot is properly arranged in the shoe 100, the band 116 contracts and the rear upper 106 is properly attached to the instep. In the example described above, the band 116 is provided in a manner that forms a portion of the outer foot side of the opening 114, but the position of the band 116 is not limited thereto. By providing the band 116, the wearing and removing properties can be improved.

[0089] In addition to the above-mentioned embodiment, the following variants are also considered. The shoe according to the variant includes a sheet-shaped outer sole without a rolled-up portion, a midsole provided on the upper surface of the outer sole, and an upper. The midsole is provided with a rolled-up midsole portion extending upward from the periphery toward the upper, and a midsole cutout formed in the rolled-up midsole portion. The outer sole is provided with an outer sole cutout at a position corresponding to the midsole cutout.

[0090] The structures of the shoe according to the modification are basically the same as the structures of the shoe described in the embodiment. In the modification and the embodiment, the rolled-up portion is formed on the outer sole in the embodiment, whereas in the modification, a midsole rolled-up portion equivalent to the rolled-up portion is provided on the midsole. In addition, in the embodiment, the cutout is only formed on the outer sole, but in the modification, a midsole cutout is formed on the midsole and an outer sole cutout is formed on the outer sole. The midsole cutout and the outer sole cutout are preferably formed in a continuous manner, and the continuous cutout has the same structure as the cutout 18 of the embodiment.

[0091] Regarding the midsole roll-up, only a portion of the midsole is formed of a highly rigid material and is formed in a shape extending toward the upper. The position of the midsole cutout (ie, the position of the flexion region in the modified example) can be appropriately changed according to the use of the shoe.

[0092] Furthermore, the embodiment and the modified example may be combined to provide the flexure region formed in the rolled-up portion of the midsole and the flexure region formed in the rolled-up portion of the outsole at different positions in one shoe.

[0093] In addition, an impact-absorbing structure such as a gel material may be built into the midsole or the outer sole.

[0094] The examples of the embodiments of the present invention are described in detail above. The embodiments only show specific examples when the present invention is implemented. 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 constituent elements can be made within the scope of the idea of ​​the invention specified in the claims. In addition, in the embodiments, regarding the components mentioned in the number, quantity, etc., except for the cases specifically recorded, the scope of the present invention is not necessarily limited to the number, quantity, etc. In addition, in the embodiments, except for the cases specifically recorded, each constituent element is not necessarily necessary for the present invention. Therefore, such changes and modifications are interpreted as the scope of the present invention determined by the claims.

[0095] If the invention embodied in the above-mentioned embodiments is generalized, the following technical ideas can be derived. Hereinafter, the first embodiment described in terms of the problems to be solved by the present invention will be described.

[0096] The shoe of the first embodiment includes: an outsole having a contact surface that contacts the ground; and an upper directly or indirectly mounted on the outsole on a side opposite to the contact surface, the outsole having: an outsole body; and a rolled-up portion extending from an edge of the outsole body toward the upper, the outsole having a flexion area, the flexion area being formed with at least one cut extending from the outsole body to the rolled-up portion.

[0097] According to the first embodiment, the flexibility of the shoe can be improved by the flexion zone without impairing the rigidity of the shoe by the outsole body.

[0098] According to the first embodiment, in the second embodiment, the cutout has a predetermined width in the front-rear direction.

[0099] According to this structure, flexibility can be improved.

[0100] According to the first embodiment or the second embodiment, a third embodiment includes a midsole provided between the outer sole and the upper, and the rolled portion extends to a position above an upper surface of the midsole.

[0101] According to this structure, the strength of the side surface of the shoe can be improved.

[0102] In a fourth embodiment according to any one of the first to third embodiments, the cutout is provided in at least one of the lateral forefoot portion or the medial forefoot portion of the outsole.

[0103] According to such a structure, the flexibility of the shoe can be improved particularly in the lateral forefoot portion or the medial forefoot portion where flexibility is required.

[0104] According to any one of the first to fourth embodiments, in a fifth embodiment, the cutout extends continuously from the contact surface to the roll-up portion.

[0105] According to this structure, the flexibility of the shoe can be improved.

[0106] According to any one of the first to fifth embodiments, in a sixth embodiment, the cutout extends to an upper end of the rolled portion.

[0107] According to this structure, the flexibility of the shoe can be improved.

[0108] In a seventh embodiment, according to any one of the first to sixth embodiments, the cutout extends to a vicinity of a middle in the width direction of a contact surface of the outer sole.

[0109] According to this structure, the flexibility of the shoe can be improved.

[0110] In an eighth embodiment according to any one of the fifth to seventh embodiments, the cutout extending to the contact surface is arranged at a position corresponding to the MP (Metatarso Phalangeal) joint of the wearer.

[0111] According to such a structure, the flexibility of the shoe can be ensured at the position corresponding to the MP joint which requires high flexibility.

[0112] In a ninth embodiment, the outer sole according to any one of the fifth to eighth embodiments includes a plurality of cutouts extending to a tread surface, and each end portion of the outer sole of the plurality of cutouts located near a center in a width direction of the tread surface is arranged in a curved line.

[0113] According to the ninth embodiment or the tenth embodiment, it is preferable that the curved line has a shape that bulges outward in the width direction of the outer sole.

[0114] According to this structure, flexibility can be imparted to the shoe in a balanced manner according to the pedaling pressure of the sole of the foot.

[0115] According to any one of the first to tenth embodiments, in the eleventh embodiment, the flexion region is provided only in the lateral forefoot portion of the outsole and is not provided in the medial forefoot portion.

[0116] According to such a structure, the present invention can be applied to games such as skateboarding, which require the wear resistance and flexibility of the outer foot side forefoot portion.

[0117] In the twelfth embodiment according to any one of the first to eleventh embodiments, the intersection of the tread surface of the outer sole and the rolled-up portion is substantially at a right angle.

[0118] According to this structure, the present invention can be applied to a game such as a skateboard in which the intersection of the contact surface and the rolling portion of the outer sole is used to control the board.

[0119] According to any one of the first to twelfth embodiments, in a thirteenth embodiment, an upper protection layer is provided at a forefoot portion of the shoe upper.

[0120] According to the above structure, the forefoot portion of the shoe upper can be protected.

[0121] According to the thirteenth or fourteenth embodiment, the upper protective layer is formed of rubber or resin, for example.

[0122] In the fifteenth embodiment according to the thirteenth embodiment or the fourteenth embodiment, the upper protective layer includes a protection reinforcement portion and a flexibility imparting portion having a thinner wall than the protection reinforcement portion.

[0123] According to the above structure, flexibility can also be imparted to the upper protective layer.

[0124] According to the fifteenth embodiment, in the sixteenth embodiment, the flexibility imparting portion extends along an extension line of the incision.

[0125] According to the above configuration, the cutout and the flexibility imparting portion can be integrally bent, thereby improving the flexibility of the entire shoe.

[0126] According to the fifteenth embodiment or the sixteenth embodiment, in the seventeenth embodiment, the protection reinforcement portion is arranged near the upper end of the rolled portion.

[0127] According to the above structure, the shoe upper can be protected near the upper end of the rolled portion.

[0128] According to any one of the fifteenth to seventeenth embodiments, in the eighteenth embodiment, the shoe further includes an eyelet portion through which a shoelace passes, and the protection reinforcement portion is disposed near the eyelet portion.

[0129] According to the above structure, the eyelets and the shoelaces passing through the eyelets can be protected.

[0130] According to the eighteenth embodiment, in the nineteenth embodiment, a slit is formed extending along the front-to-back direction of the shoe upper and having eyelets on both sides, and the slit is formed on the side opposite to the side where the flexing area is formed more than the center of the width direction of the shoe in the width direction of the shoe, and the upper protective layer is arranged on the side where the flexing area is formed closer to the slit in the width direction of the shoe.

[0131] According to this structure, the upper protective layer is provided on the side where the flexion area is formed and where protection is more required, so that the upper can be appropriately protected.

[0132] According to any one of the first to nineteenth embodiments, in the twentieth embodiment, a tongue is included, and the tongue has a length that is folded back to the front of the uppermost eyelet portion.

[0133] According to this structure, the shoelaces can be protected by the shoe tongue.

[0134] According to any one of the first to twentieth embodiments, in a twenty-first embodiment, the outer sole is formed of rubber.

[0135] According to such a structure, grip can be imparted to the outsole.

[0136] Industrial Applicability

[0137] The present invention has industrial applicability in the field of shoes.

Claims

1. A shoe, characterized in that: include: an outsole having a contact patch for contacting the ground; as well as An upper is directly or indirectly mounted on the outer sole on a side opposite to the contact surface; The outsole comprises an outsole body and a rolled portion extending from an edge of the outsole body toward the shoe upper. The outsole has a flexure region formed with at least one cutout extending from the outsole body to the rolled-up portion, The cutout and the flexion area are only provided on the outer foot side forefoot portion of the outer sole, and are not provided on the inner foot side forefoot portion of the outer sole. The cutout extends continuously from the contact surface to the rolled portion, The shoe includes a plurality of the cutouts extending to the contact surface, and each end portion of the plurality of the cutouts located near the center in the width direction of the contact surface of the outsole is arranged in a curved line. The curved line has a shape that bulges outward in the width direction of the outsole.

2. The shoe according to claim 1, wherein: The incision has a predetermined width in the front-rear direction. 3 . The shoe according to claim 1 , further comprising a midsole provided between the outer sole and the upper, wherein the rolled portion extends to an upper side than an upper surface of the midsole.

4. The shoe according to claim 1 or 2, wherein: The cutout extends to an upper end of the rolled portion.

5. The shoe according to claim 1 or 2, wherein: The cutout extends to approximately the middle of the contact surface of the outsole in the width direction.

6. The shoe according to claim 1, wherein: The cutout extending to the contact surface is arranged at a position corresponding to a metatarsophalangeal joint of the wearer.

7. The shoe according to claim 1 or 2, wherein: The intersection of the contact surface of the outsole and the rolled-up portion is at a right angle.

8. The shoe according to claim 1 or 2, wherein: A shoe upper protection layer is arranged on the front foot portion of the shoe upper.

9. The shoe according to claim 8, wherein: The upper protective layer is formed of rubber or resin.

10. The shoe according to claim 8, wherein: The upper protective layer includes a protective reinforcement portion and a flexibility imparting portion having a thinner wall than the protective reinforcement portion.

11. The shoe according to claim 10, wherein: The flexibility imparting portion extends along an extension line of the incision.

12. The shoe according to claim 10, wherein: The protection reinforcement portion is arranged near the upper end of the rolled portion. 13 . The shoe according to claim 10 , comprising an eyelet portion through which a shoelace passes, wherein the protective reinforcement portion is disposed near the eyelet portion.

14. The shoe according to claim 13, comprises a slit extending in the front-to-back direction of the shoe upper and forming the eyelet portion on both sides, the slit being formed on the side opposite to the side where the flexing region is formed more than the center of the shoe in the width direction of the shoe, and the shoe upper protective layer being arranged on the side where the flexing region is formed more than the slit in the width direction of the shoe.

15. The shoe according to claim 1 or 2, comprising a tongue having a length folded back to a position further forward than an uppermost eyestay portion.

16. The shoe according to claim 1 or 2, wherein: The outsole is formed of rubber.

Images