There is provided a structure of a shoe sole that suppresses excessive bending by reinforcing the front foot portion of a sole having a reduced weight. The shoe sole may include a mid sole for absorbing an impact of landing, an outer sole placed under the mid sole and in contact with the ground, and
There is provided a structure of a shoe sole that suppresses excessive bending by reinforcing the front foot portion of a sole having a reduced weight. The shoe sole may include a mid sole for absorbing an impact of landing, an outer sole placed under the mid sole and in contact with the ground, and a reinforcement element for suppressing bending of a front foot portion during push-off. The reinforcement element includes a medial reinforcement portion extending in a front-rear direction along a medial side of the front foot portion; a lateral reinforcement portion extending in the front-rear direction along a lateral side of the front foot portion; a connection and reinforcement portion for connecting the medial and lateral reinforcement portions and for providing reinforcement; and a connection portion for connecting the medial reinforcement portion and the lateral reinforcement portion in an area posterior to the connection and reinforcement portion.
대표청구항▼
1. A shoe sole, comprising: a mid sole for absorbing an impact of landing,an outer sole placed under the mid sole so as to be in contact with ground, anda reinforcement element for suppressing bending of a front foot portion of the outer sole and a front foot portion of the mid sole during push-off,
1. A shoe sole, comprising: a mid sole for absorbing an impact of landing,an outer sole placed under the mid sole so as to be in contact with ground, anda reinforcement element for suppressing bending of a front foot portion of the outer sole and a front foot portion of the mid sole during push-off, wherein: the front foot portion of the outer sole includes a plurality of first portions spaced apart from one another at least in a front-rear direction of a foot;the mid sole includes a first main mid sole and a second main mid-sole, the first main mid sole comprising a single layer of foamed resin continuously extending from a medial edge of the mid sole to a lateral edge of the mid sole, the second main mid sole comprising another single layer of foamed resin placed below the first main mid sole, the second main mid sole forming a pair of surfaces extending from one of the medial edge and the lateral edge of the second main mid sole towards a central portion in a width direction of the foot, the pair of surfaces facing each other in the front-rear direction, the pair of surfaces defining a groove extending in the width direction of the foot, the pair of surfaces comprising a front vertical surface and a back vertical surface of the groove;the front foot portion of the second main mid sole includes a plurality of second portions spaced apart from one another by the groove so as to break continuity of deformation at least in the front-rear direction of the foot, the second portions being continuous with each other in the front-rear direction in at least a part except the groove such that a central portion of the front foot portion in the front-rear direction excludes the groove and is continuous;the reinforcement element includes a plurarity of third portions attached to an upper surface of the outer sole and sandwiched between the first portions and the second portions; andthe reinforcement element includes a bending suppressing portion placed and extending between the third portions in the front-rear direction of the foot, thereby serving to suppress the bending. 2. A shoe sole according to claim 1, wherein the reinforcement element is spaced apart from a lower surface of the first main mid sole between the first portions. 3. A shoe sole according to claim 1, wherein the reinforcement element is attached to a lower surface of the first main mid sole and curved in an upwardly protruding shape between the first portions. 4. A shoe sole according to claim 1, wherein: the mid sole further includes a compressively deformable member exposed on a side surface of the mid sole;the reinforcement element serves also as a holding member for holding, in cooperation with the first and second main mid soles, the compressively deformable member in a predetermined area; andthe holding member includes an attachment portion secured to an upper surface of the outer sole, and an engagement portion extending upwardly from the attachment portion on the side surface of the mid sole. 5. A shoe sole according to claim 4, wherein: the compressively deformable member is sandwiched between the first main mid sole and the second main mid sole. 6. A shoe sole according to claim 1, wherein: the groove is defined in the width direction of the foot without crossing an entire width of the second main mid sole in the width direction. 7. A shoe sole according to claim 1, wherein the second main mid sole forms other one or more pairs of surfaces in one of the medial edge and the lateral edge of the second main mid sole, the other one or more pairs of surfaces defining other one or more grooves extending in the width direction of the foot, each pair of surfaces of the other one or more pairs of surfaces comprising a front vertical surface and a back vertical surface of a corresponding groove of the other one or more grooves. 8. A shoe sole according to claim 1, wherein the second main mid sole forms another pair of surfaces in other one of the medial edge and the lateral side of the second main mid sole, the another pair of surfaces comprising a front vertical surface and a back vertical surface of another groove, each of the medial edge and the lateral edge of the second main mid sole having at least one corresponding groove. 9. A shoe sole according to claim 1, wherein second main mid sole forms a plurality of pairs of surfaces in each of the medial edge and the lateral edge of the second main mid sole that define a plurality of grooves, each pair of surfaces comprising a front vertical surface and a back vertical surface that define a corresponding groove of the plurality of grooves, the plurality of pairs of surfaces including the pair of surfaces, the plurality of grooves including the groove. 10. A shoe sole, comprising: a mid sole for absorbing an impact of landing, and an outer sole attached to a lower surface of the mid sole so as to be in contact with ground, wherein: the mid sole includes a main mid sole of a foamed resin, and a compressively deformable member exposed on a side surface or a back surface of the mid sole;the compressively deformable member accumulating a replusive force while being deformed and having a property selected from the group consisting of: being comprised of a rubber elasticity, and formed in a shape that is filled with a substance seleceted from the group consisting of: air, a gel substance, and a soft elastic member;a holding member is provided for holding, in cooperation with the main mid sole, the compressively deformable member in a predetermined area;the main mid sole includes a first main mid sole placed below a bottom portion of a foot, and a second main mid sole placed below the first main mid sole;the compressively deformable member is sandwiched between the first main mid sole and the second main mid sole; andthe holding member includes an attachment portion secured to a lower surface of the second main mid sole, and an engagement portion extending upwardly from the attachment portion on the side surface of the mid sole and engaging with a side surface of the compressively deformable member, the engagement portion being in a direct contact with the side surface of the compressively deformable member to cover the compressively deformable member. 11. A shoe sole according to claim 10, wherein the second main mid sole is provided in a front foot portion, and the compressively deformable member is located both in a medial area and a lateral area of the front foot portion. 12. A shoe sole according to claim 10, wherein the compressively deformable member is provided at a position of a ball of a big toe of a front foot portion. 13. A shoe sole according to claim 10, wherein the engagement portion is engaged with the second main mid sole. 14. A shoe sole according to claim 10, wherein the engagement portion is formed by a non-foamed resin. 15. A shoe sole according to claim 10, wherein: the first main mid sole comprises a single plate-like member continuously extending from a medial edge of the mid sole to a lateral edge of the mid sole;the second main mid sole has a plate-like shape;the second main mid sole forms a pair of surfaces extending from the medial or lateral edge of the second main mid sole towards a central portion in a width direction of the foot, the pair of surfaces facing each other in the front-rear direction;the pair of surfaces define a groove extending in the width direction of the foot. 16. A shoe sole according to claim 15, wherein: the groove is defined without completely crossing the second main mid sole in the width direction of the foot. 17. A shoe sole, comprising: a mid sole for absorbing an impact of landing,an outer sole placed under the mid sole so as to be in contact with ground, anda reinforcement element for suppressing bending of a front foot portion of the outer sole and a front foot portion of the mid sole during push-off, wherein: the front foot portion of the outer sole includes a plurality of first portions spaced apart from one another at least in a front-rear direction of a foot;the mid sole includes a first main mid sole formed by a single plate-like foamed resin continuously extending from a medial edge of the mid sole to a lateral edge of the mid sole, and a second main mid sole formed by a plate-like foamed resin and placed below the first main mid sole,the second main mid sole forms a pair of surfaces extending from one of the medial edge and the lateral edge of the second main mid sole toward a central portion in a width direction of the foot, the pair of surfaces facing each other in the front-rear direction,the pair of surfaces extending from one of the medial edge and the lateral edge of the second main mid sole toward the central portion defines a groove, the pair of surfaces comprising a front vertical surface and a back vertical surface of the groove;the front foot portion of the second main mid sole includes a plurality of second portions spaced apart from one another by the groove extending in the width direction of the foot so as to break continuity of deformation at least in the front-rear direction of the foot,the plurality of second portions are each placed in both a medial side and a lateral side of the foot in the front foot portion, and at least one part of each of the second portions in the medial side is continuous with, in the width direction, at least one part of each of the second portions in the lateral side via the second main mid sole,via a part where the at least one part of each of the second portions in the medial side is continuous with the at least one part of each of the second portions in the lateral side, the second portions are continuous with each other in the front-rear direction in at least a part of a central portion except the groove;the reinforcement element includes a plurarity of third portions attached to an upper surface of the outer sole and sandwiched between the first portions and the second portions; andthe reinforcement element includes a bending suppressing portion placed and extending between the third portions in the front-rear direction of the foot, thereby serving to suppress the bending. 18. A shoe sole according to claim 17, wherein the reinforcement element is spaced apart from a lower surface of the second main mid sole between the first portions. 19. A shoe sole according to claim 17, wherein the reinforcement element is attached to a lower surface of the second main mid sole and curved in an upwardly protruding shape between the first portions. 20. A shoe sole according to claim 17, wherein: the mid sole further includes a compressively deformable member exposed on a side surface of the mid sole;the reinforcement element serves also as a holding member for holding, in cooperation with the first and second main mid soles, the compressively deformable member in a predetermined area; andthe holding member includes an attachment portion secured to an upper surface of the outer sole, and an engagement portion extending upwardly from the attachment portion on the side surface of the mid sole. 21. A shoe sole according to claim 20, wherein: the compressively deformable member is sandwiched between the first main mid sole and the second main mid sole. 22. A shoe sole according to claim 17, wherein: the groove is defined without completely crossing the second main mid sole in the width direction of the foot.
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이 특허에 인용된 특허 (12)
Crowley, Jr.,Gerald Edwin, Article of footwear with plate dividing a support column.
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