JP2004337370A - Sole - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sole having a superior gripping property enough to surely grip and grasp a road surface. <P>SOLUTION: This sole 10 includes an outer sole 14 disposed in the grounding surface side of the shoe, an insole disposed in one main surface of the outer sole 14, the grip part 18 disposed in a prescribed position of the other main surface of the outer sole 14, a projecting piece 24 disposed inside the grip part 18 and projecting from the other main surface of the outer sole 14 to the grounding surface side, and an elastic body disposed between the grip part 18 and the insole. When a force is applied from the grounding surface side to the grip part 18, the projecting piece 24 is pushed from the grounding surface side so that the the other projecting pieces 26-32 and projection pieces 34-40 of the grip part are elastically deformed inward around the projecting piece 24 and at the same time deformed in the direction of grasping the grounding surface. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a shoe sole, and more particularly to a shoe sole suitable for use in, for example, golf shoes.
[0002]
[Prior art]
Conventional techniques include bending determined based on contact / separation line data obtained by a foot pressure distribution history measurement method for various foot behaviors such as walking, running, turning, jumping, and lateral movement. There was a diagram in which a curved bent groove was formed in a shoe sole according to a diagram (for example, see Patent Document 1). The cross-sectional shape of the bent groove is formed in, for example, a “U” shape, a U shape, a V shape, or the like.
In Patent Document 1, a wide range of the sole is brought into contact with the road surface by a curved bending groove based on a bending diagram obtained from a biomechanical analysis result arranged in a region from the heel to the toe, and the road surface graspability ( Grip).
[0003]
In addition, in the conventional technique, the force acting on the sole in various exercise modes is calculated based on the distribution chart of the essential friction coefficient determined based on the foot pressure distribution data and the load vector data obtained by the foot pressure distribution history measurement method. In some cases, an anti-slip design is arranged on a shoe sole in accordance with the obtained anti-slip region, and the direction and action area are determined as the anti-slip region (for example, see Patent Document 2). The anti-slip design has an anti-slip structure such as a groove shape, a block shape, and a dot shape.
In Patent Literature 2, in order to effectively exhibit anti-slip properties, anti-slip designs are provided in accordance with the direction of the maximum friction direction, the direction of the shear direction, and the region where foot pressure largely acts.
[0004]
[Patent Document 1]
JP-A-9-75106 (pages 2 and 4, FIGS. 10 and 11)
[Patent Document 2]
JP-A-9-201208 (page 2-3, FIG. 3)
[0005]
[Problems to be solved by the invention]
However, in the technology described in Patent Literature 1, the grip property is only ensured by bringing the curved bend grooves into contact with the road surface. Therefore, when the road surface is wet with rain and slippery, for example, It was difficult to secure grip on the road surface. Therefore, the shoe sole of Patent Literature 1 is unsuitable for sports shoes used for sports such as golf, tennis, soccer, and rugby that can be performed even on rainy roads on a grassy road surface.
[0006]
Further, in the technology described in Patent Document 2, how effectively the anti-slip design having a non-slip structure such as a groove shape, a block shape, and a dot shape greatly affects the direction of the maximum friction direction, the direction of the shear direction, and the foot pressure. The important point is whether the anti-slip design itself secures the grip of the road surface by the frictional force due to the contact between the anti-slip design and the road surface, as in Patent Document 1 described above. Absent. Therefore, the sole of Patent Document 2 is also unsuitable for sports shoes used for sports such as golf, tennis, soccer, and rugby, which can be performed even on rainy roads on grassy road surfaces.
[0007]
Further, in Patent Literature 1, foot pressure distribution data in various exercise states such as walking, running, turning, jumping, and laterally moving is measured by a foot pressure distribution history measuring device, and the foot pressure distribution data is measured. Determine the contact line / peeling line data from, further, determine the bending line data from the contact line / peeling line data, and further, based on this bending line data and foot anatomy database, the design of the bending groove is determined, Also in Patent Document 2, in each exercise mode, essential friction coefficient distribution data is determined from foot pressure distribution data and load vector data measured by the foot pressure distribution history measuring device, and further, essential friction coefficient distribution data and foot anatomical database In each case, a complicated process is required, and the anti-slipping area is determined on the basis of the anti-slipping design. It was such a thing.
[0008]
Therefore, a main object of the present invention is to provide a shoe sole excellent in gripping property that can grasp and grasp a road surface.
[0009]
[Means for Solving the Problems]
The present invention according to claim 1 has an outer sole disposed on the ground contact surface side of the shoe, an insole disposed on one main surface of the outer sole, and a predetermined position on the other main surface of the outer sole, A grip portion, a projection piece disposed inside the grip portion and protruding from the other main surface of the outer sole to the ground contact surface side of the shoe, and an elastic body disposed between the grip portion and the midsole. When a force is applied to the grip portion from the grounding surface side, the protrusion is pressed from the grounding surface side, so that the grip portion is elastically deformed inward around the protrusion, and the periphery of the protrusion is The shoe sole is characterized in that the portion is displaced in a direction to grasp the ground contact surface.
According to a second aspect of the present invention, there is provided the shoe sole according to the first aspect of the present invention, wherein the grip portion includes a projecting piece disposed substantially at the center of the grip portion. .
A third aspect of the present invention is the invention according to the first or second aspect, wherein the grip portion is provided with a plurality of projection pieces disposed inside the grip portion so as to face each other with a space therebetween. A shoe sole comprising:
A fourth aspect of the present invention is the invention according to the first or third aspect, wherein the grip portion is provided with a plurality of protrusions arranged at intervals in a circumferential direction inside the grip portion. A shoe sole comprising:
The present invention according to claim 5 is an invention according to the invention according to claim 1, wherein the grip portion includes a projection piece disposed substantially at the center of the grip portion, and a projection piece spaced apart from the projection piece. A shoe sole characterized by including other protruding pieces arranged so as to surround it.
A sixth aspect of the present invention is an invention according to the fifth aspect, wherein the projecting piece is disposed so as to protrude more toward the ground plane than the other projecting pieces. , The soles.
[0010]
[Action]
In the present invention according to the first aspect, the grip portion partitioned into an annular shape is disposed at a predetermined portion on the other main surface of the outer bottom. Inside the grip portion, a protruding piece that protrudes from the other main surface of the outer sole toward the ground contact side of the shoe is arranged. An elastic body is arranged between the grip portion and the midsole. When a force acts on the grip portion from the contact surface side, the protrusion is pressed from the contact surface side. In this case, the grip portion is elastically deformed inward around the projection piece by the elastic force of the elastic body. Further, at the same time, the periphery of the protrusion of the grip portion is displaced in a direction to grasp the ground contact surface. Therefore, the grip part grasps so that the periphery of the projection piece grips the ground contact surface. In this case, the grip portion can respond to pressure from all directions on the ground contact surface side, and grasp and grasp the turf from all directions. Therefore, the grip on the ground surface is improved.
According to the second aspect of the present invention, since the protrusion is disposed substantially at the center of the grip portion, when a force acts on the grip portion from the grounding surface side, the approximate center of the grip portion is pressed. Therefore, the grip portion is stably and effectively elastically deformed inside the grip portion, and accordingly, the peripheral portion of the protruding piece is displaced in a direction to grasp the ground contact surface with uniform balance. In this case, the grip portion can respond to pressure from all directions on the ground contact surface side, and grasp and grasp the turf from all directions. Therefore, the grip on the ground contact surface is further improved.
According to the third aspect of the present invention, since the plurality of protrusions are arranged inside the grip at a distance from each other, when a force acts on the grip from the grounding surface side, the plurality of protrusions are The tip sides are displaced toward each other. In this case, the grip portion can respond to pressure from all directions on the ground contact surface side, and grasp and grasp the turf from all directions. Therefore, it is possible to grasp that, for example, a turf on the ground or a small undulation is sandwiched between the plurality of opposing projection pieces.
In the present invention according to claim 4, since the plurality of protrusions are arranged at intervals in the circumferential direction inside the grip portion, when a force acts on the grip portion from the grounding surface side, the plurality of protrusions are: The tip side tilts toward the center of the grip, and is displaced so as to grip the center of the grip. In this case, the grip portion can respond to pressure from all directions on the ground contact surface side, and grasp and grasp the turf from all directions. For this reason, it is possible to grasp, for example, ground grass and small undulations inside the plurality of projection pieces.
In the present invention according to claim 5, when a force is applied to the grip portion from the grounding surface side, the tip of another projection piece arranged to surround the projection piece on the one side of the projection arranged substantially at the center of the grip portion. The side is tilted and displaced so as to grip the center of the grip. In this case, the grip portion can respond to pressure from all directions on the ground contact surface side, and grasp and grasp the turf from all directions. Therefore, it is possible to grasp, for example, grass on the ground or a small undulation between the projection piece and another projection piece.
In the present invention according to claim 6, the projecting piece arranged substantially at the center of the grip portion is arranged so as to protrude more toward the ground plane than other projecting pieces arranged so as to surround the projecting piece. For this reason, the grip portion is stably and effectively elastically deformed inward around the projection piece disposed substantially at the center thereof, and accordingly, the other projection pieces are displaced in a direction to grasp the ground contact surface in a well-balanced manner. I do. In this case, the grip portion can respond to pressure from all directions on the ground contact surface side, and grasp and grasp the turf from all directions. Therefore, when a force acts on the grip portion from the grounding surface side, for example, grass on the ground or a small undulation can be more effectively grasped between the projection piece and another projection piece.
[0011]
The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments of the present invention with reference to the drawings.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
【Example】
FIG. 1 is a plan view showing one embodiment of a shoe sole according to the present invention. FIG. 2 is a perspective view showing a main part of the spike structure of the shoe sole shown in FIG. 1, and FIG. 3 is a perspective view showing an operation of the spike structure. FIG. 4 is a cross-sectional view of a main part along line IV-IV in FIG. In this embodiment, an example in which the shoe sole according to the present invention is applied to, for example, a golf shoe will be described. In addition, FIG. 1 illustrated in this embodiment shows the shoe sole 12 in a plan view from the ground contact side of the shoe, and in FIGS. 2, 3 and 4, the upper side thereof corresponds to the contact ground side of the shoe sole 12. It becomes.
The golf shoe 10 includes a sole 12 as shown in FIG. 1, for example. The sole 12 includes an outer sole 14 that is located on the side of the tread of the shoe. On one main surface of the outer bottom 14, for example, as shown in FIG.
[0013]
On the other main surface of the outer bottom 14, six grip portions 18 partitioned in an annular shape are arranged at predetermined positions. In this embodiment, as shown in FIG. 1, when the sole 12 is a toe portion A, a stepped portion B, an arch portion C, and a heel portion D from the toe side, the grip portion 18 is, for example, of the stepped portion B. Two are arranged on the left and right at an interval, and two are arranged on the left and right of the heel D at an interval. Each of the six grip portions 18 is defined by an annular groove portion 20 which is, for example, substantially circular in plan view.
[0014]
Since each of the six grip portions 18 has a similar structure, one grip portion 18 will be described in detail with reference to, for example, FIGS. 2 and 4.
That is, the grip portion 18 includes the disk-shaped base portion 22 arranged inside the groove portion 20. At the approximate center of the base 22, one protruding piece 24 protruding from the surface of the base 22 to the ground surface side is provided. The protruding piece 24 is formed in, for example, a truncated cone shape, and its upper surface protrudes toward the grounding surface.
[0015]
Further, around the projection piece 24, for example, four other projection pieces 26, 28, 30, 32 are arranged at a predetermined interval from the projection piece 24. The four protruding pieces 26 to 32 are each formed in a columnar shape, for example, in a plan view arc shape. The four protruding pieces 26 to 32 are arranged at predetermined intervals in a substantially circumferential direction around the protruding piece 24. Of the four protrusions 26 to 32, the two protrusions 26 and 30 are disposed so as to face each other when viewed in a diametrical direction of a substantially circumference centered on the protrusion 24. Similarly, the other two protruding pieces 28 and 32 of the four protruding pieces 26 to 32 are arranged so as to face each other. In this case, one projection piece 24 and four projection pieces 26, 28, 30, 32 are formed at substantially the same height, for example, as shown in FIG.
[0016]
Further, for example, as shown in FIGS. 1 and 2, for example, four further projecting pieces 34, 36, 38 and 40 are arranged around the four projecting pieces 26, 28, 30 and 32. Like the four projections 26 to 32, the four projections 34 to 40 are formed in a columnar shape, for example, in a plan view arc shape.
[0017]
In this case, the four projecting pieces 34 to 40 are arranged at predetermined intervals in a substantially circumferential direction around the projecting piece 24. The four projecting pieces 34 to 40 are disposed substantially concentrically with the four projecting pieces 26 to 32 around the projecting piece 24.
The two projections 34 and 38 of the four projections 34 to 40 are arranged so as to face each other when viewed in the diametrical direction of a substantially circumference centered on the projection 24. Similarly, the other two protruding pieces 36 and 40 of the four protruding pieces 34 to 40 are arranged so as to face each other.
[0018]
Further, the gap 42 between the projection pieces 34 and 36, the gap 44 between the projection pieces 36 and 38, the gap 46 between the projection pieces 38 and 40, and the gap between the projection pieces 40 and 34 are respectively the projection piece 28, the projection piece 30, and the projection piece. 32, it is arranged so as to face the wall surface of the projection piece 26. In addition, the four protruding pieces 34 to 40 are formed to have a higher height so as to protrude more toward the ground plane than the four protruding pieces 26 to 32, for example, as shown in FIG.
[0019]
In this embodiment, the base portion 22 of the grip portion 18, one projection piece 24, four other projection pieces 26 to 32, and four further projection pieces 34 to 40 are integrated with, for example, a synthetic resin material. Is formed. EVA resin (ethylene-vinyl acetate copolymer) or the like is used as the synthetic resin material. In addition, synthetic resin other than EVA resin, rubber, foamed plastic, foamed rubber, and the like may be appropriately used.
[0020]
Furthermore, for example, a highly elastic elastic body 50 is disposed between the grip portion 18 and the midsole 16, as shown in FIG. In the present embodiment, a highly elastic elastic body 50 made of, for example, a disc-shaped EVA foamed resin is disposed on the back surface side of the base portion 22 of the grip portion 18. The elastic body 50 is not limited to the EVA foamed resin, and may be formed of other foamed resin, rubber, or the like as long as the material has excellent resilience and cushioning properties. Note that the elastic modulus of the elastic body 50 can be appropriately changed by adjusting, for example, the composition of the foamed resin used for the elastic body 50 and the foaming rate.
[0021]
In this embodiment, when a force is applied to the grip portion 18 from the ground contact surface side of the shoe, for example, as shown in FIG. 3, the projection piece 24, the projection pieces 26, 28, 30, 32 and the projection pieces 34, 36, 38. , 40 are pressed from the ground plane side. For this reason, the grip portion 18 is elastically deformed inward around the projection piece 24, and the peripheral portions of the projection piece 24, in this case, the tip sides of the projection pieces 26 to 32 and the projection pieces 34 to 40 are tilted inward, It is elastically displaced in a direction to grasp as if gripping the ground contact surface.
[0022]
In this case, the protruding pieces 24, the protruding pieces 26 to 32, and the protruding pieces 34 to 40 are elastically deformed in a direction in which their tip sides approach each other. In this embodiment, since the projection piece 24 is disposed substantially at the center of the grip portion 18, when a force acts on the grip portion 18 from the grounding surface side, the substantially center of the grip portion 18 is pressed. Accordingly, the grip portion 18 is stably and effectively elastically deformed to the inside thereof, and accordingly, the protruding pieces 26 to 32 and the protruding pieces 34 to 40 in the peripheral portion of the protruding piece 24 grasp the ground surface evenly and well-balanced. It is displaced in the direction. In this case, the grip portion 18 responds to pressure from all directions on the ground contact surface side, and grasps and grasps the turf from all directions.
[0023]
Therefore, when the grounding surface is a ground made of lawn, for example, the undulations of the lawn and the ground are grasped between the protruding pieces 26 to 32 and the protruding pieces 34 to 40 so that the gripping property with respect to the grounding surface is obtained. Is assured.
[0024]
FIG. 5 is a sectional view of a main part showing another embodiment of the shoe sole according to the present invention. The embodiment shown in FIG. 5 is different from the above-described embodiment in that, in particular, the projection piece 24 arranged substantially at the center of the grip portion 18 has the other projection pieces 26 to 32 arranged so as to surround the projection piece 24. And it is arrange | positioned so that it may project to the ground surface side rather than the protrusion pieces 34-40. That is, the height of the projection 24 is formed higher than the heights of the other projections 26 to 32 and the projections 34 to 40. Therefore, the grip portion 18 is stably and effectively elastically deformed inward around the projection piece 24 disposed substantially at the center thereof, and accordingly, the other projection pieces 26 to 32 and the projection pieces 34 to 40 are formed. Is displaced in a direction to grasp the ground contact surface in a balanced manner. Therefore, when a force is applied to the grip portion 18 from the grounding surface side, for example, ground grass or a small undulation is more effectively applied between the projection piece 24 and the other projection pieces 26 to 32 and the projection pieces 34 to 40. Can be grasped. In the embodiment shown in FIG. 5, the heights of the projections 26 to 32 and the heights of the projections 34 to 40 are substantially the same.
[0025]
In the above-described embodiment, the grip portion 18 is defined by the annular groove 20 having a substantially circular shape in plan view. However, the grip portion 18 is not limited to this, and is rectangular in plan view, rectangular in plan view, rectangular in plan view, and planar view. It may be divided into a polygonal ring or the like. In addition, the projection piece 24 provided in the section of the groove 20 is not limited to a truncated cone, and the projection pieces 26 to 32 and the projection pieces 34 to 40 are columnar in a plan view arc shape. The protrusion pieces 24, the protrusion pieces 26 to 32, and the protrusion pieces 34 to 40 are not limited to those, and are formed in a columnar shape, a cylindrical shape, a prismatic shape, a prismatic shape, a ring shape, a block shape, and the like, respectively. It may be.
[0026]
Further, the number and arrangement of the projection pieces 24, the projection pieces 26 to 32, and the projection pieces 34 to 40 are not limited to the above-described embodiments. For example, a combination of the projection piece 24 and the projection pieces 26 to 32, The grip portion 18 may be configured by a combination of the piece 24 and the projection pieces 34 to 40 or a combination of the projection pieces 26 to 32 and the projection pieces 34 to 40. In this case, it is preferable that the height of the protruding pieces arranged on the inner side is higher than the height of the outer protruding pieces.
[0027]
Further, two or more projection pieces 24 may be formed, and the number of the projection pieces 26 to 32 and the projection pieces 34 to 40 may be five or more. Further, the projection pieces 26 to 32 and the projection pieces 34 to 40 are arranged at predetermined intervals, respectively, but are not limited to those spaced apart from each other. , May be arranged in a rectangular ring shape in plan view.
[0028]
Further, in the embodiment shown in FIG. 1, for example, four grip portions 18 are arranged on the tread portion B, for example, two grip portions 18 are arranged on the heel portion D. However, the number and arrangement of the grip portions 18 are as follows. The present invention is not limited to this, and the setting can be changed as appropriate according to individual differences in the distribution of foot pressure of the user or the state of the ground.
[0029]
The shoe sole according to the present embodiment is a shoe sole suitable for use in sports shoes used for sports, such as tennis, soccer, and rugby, which can be performed on a grassy ground, in addition to golf shoes.
[0030]
According to the present invention, it is possible to obtain a shoe sole excellent in gripping property, which can reliably grasp and grasp the road surface.
[Brief description of the drawings]
FIG. 1 is a plan view showing one embodiment of a shoe sole according to the present invention.
FIG. 2 is a perspective view showing a main part of the spike structure of the shoe sole shown in FIG.
FIG. 3 is a perspective view showing an operation of the spike structure of the shoe sole shown in FIG. 2;
FIG. 4 is a cross-sectional view of a main part along line IV-IV in FIG. 2;
FIG. 5 is a sectional view of a main part showing another embodiment of a shoe sole according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Golf shoe 12 Sole 14 Outer sole 16 Middle sole 18 Grip part 20 Groove part 22 Base part 24 Projection pieces 26, 28, 30, 32 Other projection pieces 34, 36, 38, 40 Further other projection pieces 42, 44, 46 , 48 gap 50 elastic body A toe part B stepping part C arch part D heel part

Claims (6)

Outer sole, which is placed on the ground side of the shoe,
An insole arranged on one main surface of the outer bottom,
A grip portion disposed at a predetermined portion of the other main surface of the outer bottom and partitioned into an annular shape,
A projection piece disposed on the inside of the grip portion and protruding from the other main surface of the outer bottom to the ground surface side, and an elastic body disposed between the grip portion and the midsole,
When a force is applied to the grip portion from the grounding surface side, the protrusion is pressed from the grounding surface side, so that the grip portion elastically deforms inward around the protrusion, A shoe sole, wherein a peripheral portion of the projection piece is displaced in a direction to grasp the ground contact surface. The shoe sole according to claim 1, wherein the grip portion includes a projecting piece disposed substantially at the center of the grip portion. The shoe sole according to claim 1, wherein the grip portion includes a plurality of protrusions disposed inside the grip portion so as to face each other with a space therebetween. The shoe sole according to claim 1, wherein the grip portion includes a plurality of protrusions arranged at intervals in a circumferential direction inside the grip portion. 5. The grip portion includes a projection piece arranged substantially at the center of the grip section, and another projection piece arranged to surround the projection piece at an interval from the projection piece. The shoe sole according to claim 1. The shoe sole according to claim 5, wherein the protruding piece is disposed so as to protrude more toward the ground contact surface than the other protruding piece.

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