JP3887439B2 - Sports shoes studs - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an anti-slip stud (projection) provided on the sole of a sports shoe such as a golf shoe. More specifically, the present invention relates to a sports shoe stud suitably used for so-called soft spike shoes.
[0002]
[Prior art]
Anti-slip studs on the soles of sports shoes such as golf shoes include cones and truncated cones used in spiked shoes, and columnar and truncated cone rubbers used in spikeless shoes. Point and saddle studs used for soft spike shoes are known. Spike shoe heels and soft spike shoe heel studs are detachably attached to the shoe sole, and the spikeless shoe rubber point is formed integrally with the shoe sole by protruding part of the shoe sole. is there. A large number of these studs are provided on the sole of the shoe centering on the heel portion and the stepping portion (the area between the arch portion and the toe portion) of the shoe sole where weight is greatly increased during walking and playing.
[0003]
Among the above-mentioned studs for sports shoes, the spikes of spike shoes are elongated protrusions made of a hard material such as metal or ceramic. Therefore, golf shoes using this are gripping on soft ground such as lawn surfaces. On the other hand, when walking on a paved road in the course, there is a drawback that it is difficult to walk by pushing up with a kite, it is easy to get tired, and it is easy to catch grass (especially on the green). In addition, since the rubber point of spikeless shoes has flexibility, golf shoes using this are suitable for walking, but have a problem in terms of ground grip force, and are disadvantageous in that they are slippery on inclined surfaces. . On the other hand, soft spike shoes using saddle-like studs have few drawbacks like the spike shoes and spikeless shoes described above, and thus have been attracting attention in recent years.
[0004]
As a method for attaching spike shoe heels and soft spike shoes heel studs to the sole, bolts are connected to the upper surface of the studs so that they can be easily replaced and repaired when they are damaged. In general, a method in which the bolt portion is screwed into a nut portion provided on a shoe sole is adopted, and this method is very convenient in terms of shoe repair. In this case, the spike shoe heels often loosen at the beginning of use (when new), so it is necessary to check and retighten from time to time. After that, there is almost no loosening.
[0005]
[Problems to be solved by the invention]
However, the saddle-shaped studs of soft spike shoes are mainly plate-shaped, so the ground contact area (contact area with the ground or road surface) of the stud is large when walking or playing, and a considerable external force is applied to the stud. As a result, it is easier to loosen than the spiked shoe heel, and it may be lost when walking or playing. In addition, soil or the like is clogged in the nut portion after the stud is detached, and it may be difficult to repair the shoe by attaching the stud.
[0006]
The present invention has been made in view of the above circumstances, and is a saddle-like stud that is preferably used for soft spike shoes, and does not easily fall off from the sole during walking or playing. The purpose is to provide.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a stud main body formed of a hard rubber or a hard rubber-like elastic body, and having a protruding portion projecting from the lower surface of a plate-like portion having a bolt insertion hole formed in the central portion. If, comprising a bolt body shank is inserted into the bolt insertion hole of the stud entity, the nut portion provided with the hinge portion to the sole through the shank of the bolt body bolt inserted in hole of the stud principal A projection formed on the lower surface of the stud, which is attached to the shoe sole by screwing , and the stud-shaped projection is inclined downward from the upstream side to the downstream side in the rotation direction of the bolt body when attached to the shoe sole. to provide sports shoes for studs, characterized in that it is.
[0008]
Sports shoe studs of the invention, the shaft to form a stud mainly in hard rubber or hard rubber-like elastic body, through the shank of the bolt body formed on the stud principal separately from the bolt inserted in hole of the stud principal It is made to attach to a shoe sole by screwing a part in the nut part of a shoe sole. Therefore, since the stud main body has a certain degree of flexibility, the stud main body is firmly and firmly fixed to the shoe sole by the bolt body. Even when the head surface of the bolt body is grounded during walking or playing, the head surface of the bolt body is small, so that a large external force is not applied to the bolt body. Therefore, since the bolt body does not loosen, the stud does not fall off from the shoe sole during walking or playing.
[0009]
Hereinafter, each part of the stud for sports shoes according to the present invention, that is, the stud main body and the bolt body will be described.
[0010]
Stud main body In the present invention, the stud main body is formed of a hard rubber or a hard rubber-like elastic body. In this case, the hard rubber or hard rubber-like elastic body preferably has a JIS-A hardness of 60 degrees or more, particularly 80 to 95 degrees, from the viewpoints of durability, grip properties, and prevention of loosening of the bolt body. Examples of such hard rubbers include high styrene SBR elastomers, polynorbornene elastomers, urethane rubbers, and high styrene rubbers. High styrene rubbers are particularly preferable. As hard rubber-like elastic bodies, resins with properties similar to hard rubber, such as various fibers, leather boards, natural materials impregnated with polyurethane resin, urethane, ester, amide, styrene, olefin , Thermoplastic elastomers such as vinyl chloride, amide resins such as 11 nylon and 66 nylon, olefin resins such as polypropylene and polyethylene, styrene resins such as ABS and AES, ester resins such as polycarbonate and polyethylene terephthalate, polyacetal, etc. Ether resins, and the like, and thermoplastic resins, particularly nylon is preferable. Further, in the present invention, it is desirable that the protrusion is formed so that a part of the plate-shaped portion mainly composed of the stud is raised, that is, the plate-shaped portion and the protrusion are integrally formed.
[0011]
Although there is no particular limitation on the shape of the stud-based plate-like portion, it is usually a disc shape having a diameter of about 15 to 25 mm and a maximum thickness of about 1 to 3 mm, and the shaft portion of the bolt body can be inserted into the center portion thereof. Bolt insertion holes are formed. In this case, the longitudinal section of the plate-like portion has a uniform thickness as shown in FIG. 1 (a) (in the figure, 2 is a plate-like portion, 4 is a bolt insertion hole, and so on), FIG. A shape where the central portion is thickest as shown in (b) and gradually becomes thinner as it goes to the peripheral portion, and the thickness is about half the radius of the plate-like portion as shown in FIG. It becomes thick, and it can be set as arbitrary shapes, such as the shape which becomes thin gradually as it goes to the center part and peripheral part of a plate-shaped part from this position. In either case, it is preferable that the back surface of the plate-like portion is flattened or the central portion is recessed in a shade shape .
[0012]
The shape of the stud-based protrusion is preferably a protrusion formed on the lower surface with an inclined surface that inclines downward from the upstream side to the downstream side in the rotation direction of the bolt body when attached to the shoe sole. It is particularly preferable to provide a plurality of portions around the bolt insertion hole on the lower surface of the plate-like portion. A conceptual illustration of this protrusion is as shown in FIG. 2 (a schematic explanatory view of the stud main body seen from the front). That is, the protrusion 6 is projected on the lower surface of the plate-like portion 2, and the lower surface of the protrusion 6 has a rotation direction X of the bolt body when attached to the shoe sole, as shown in FIG. inclined surface 8 inclined downward toward the downstream side X ₂ are formed from the upstream side X ₁ in (FIG. 10 shows the ground). When the projection 6 is grounded and a load is applied to the projection 6, the ground 10 is deformed in accordance with the shape of the projection 6 as shown in FIG. A force, that is, a reaction force Y is applied from below. As a result, a force Z that slides the projection 6 in the same direction as the rotation direction X of the bolt body when the projection 6 is attached to the shoe sole acts on the projection 6 as a component of the force Y. The force that slides the protrusion 6 in the Z direction is a force that tightens the bolt body against the shoe sole. Therefore, when the protruding portion has the above shape, the force of tightening the bolt body against the shoe sole works during walking or playing, and the stud becomes more difficult to loosen, so that the stud falls off from the shoe sole during walking or playing. Is more effectively prevented.
[0013]
Although there is no limitation in the shape of the said projection part, For example, it can be set as the shape shown to Fig.3 (a)-(j). (A), (e), (f), and (j) are examples in which the protrusions 6 are formed in a triangular shape when viewed from the bottom, and the inclined surface 8 is formed in a triangular planar shape, (b), (d), (g ), (I) is an example in which the protrusion 6 is formed in a trapezoidal shape when viewed from the bottom, and the inclined surface 8 is formed in a trapezoidal plane, (c), (h) This is an example in which the inclined surface 8 has a rectangular flat shape. However, the shape of the protrusion 6 in a bottom view is not limited to the triangular shape, the trapezoidal shape, and the rectangular shape as illustrated in FIG. 3, and may be an arbitrary shape such as an elliptical shape. Moreover, although the example which made the inclined surface 8 planar was shown in FIG. 3, the shape of the inclined surface 8 is not restricted to planar shape, For example, curved surface shape as shown to Fig.4 (a), FIG. The shape may be any shape such as a bent surface shape having a flat tip surface as shown in b) or a bent surface shape having a sharp tip as shown in FIG. The entire lower surface of the protrusion may be the inclined surface, and only a part of the lower surface may be the inclined surface. Moreover, when providing a some projection part in the lower surface of a plate-shaped part, these projection parts may all be the same shape, and are good also as a different shape.
[0014]
The dimensions of the protrusion 6 described above can be appropriately determined. As shown in the bottom view (a) and the cross-sectional view (b) of FIG. 5, the maximum width m is 2 to 8 mm, and the maximum length n is 2 to 2. It is appropriate that 8 mm, the maximum height p be 1 to 5 mm, and the minimum height q be 0 to 4 mm. Further, it is appropriate that the maximum width / maximum length ratio (m / n) is 0.25 to 4, and the minimum height / maximum height ratio (p / q) is 0 to 0.8.
[0015]
The arrangement of the projections 6 described above is not necessarily limited. However, when the projections 6 are arranged in a substantially circular shape, for example, when the plate-like portion is a disc-like shape, as shown in FIG. It is preferable that they are arranged at substantially equal intervals along substantially the same. In this case, the inclination direction of the inclined surface 8 of the protrusion 6 and the circumferential direction of the circle in which the protrusions 6 are arranged may be matched. Further, the ratio of the radius of the circle in which the protrusions are arranged / the radius of the plate-like part (s / t) is set to 1/2 to 1, and when the same torque is applied, the one away from the central axis Is preferable in that the effect of the inclined surface 8 can be remarkably obtained. In addition, it is appropriate that the number of the protrusions 6 is 3 to 10, particularly 4 to 8. Further, the ratio of the occupied area (planar area) of the protrusion 6 to the area of the lower surface of the plate-like part 2 (the area including the area of the bolt insertion hole 4) is set to be within a range of 10 to 50%. This is appropriate in that a stopping effect can be expected.
[0016]
Bolt body The bolt body used in the present invention includes a head portion and a shaft portion having a thread on the outer periphery, and the shaft portion is passed through a bolt insertion hole and then a nut portion provided on a shoe sole. It is screwed. The material of the bolt body is not limited, but it is preferably formed of a light metal such as aluminum that does not rust, a hard material such as ceramic or plastic.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 7 is a perspective view showing an embodiment of a stud for sports shoes according to the present invention, FIG. 8 is a perspective view showing a stud main body of the stud, and FIG. 9 is a perspective view showing a bolt body of the stud.
[0018]
The stud main body 12 is integrally formed of a hard rubber (high styrene rubber) having a JIS-A hardness of 90 degrees, and has a plate-like portion 2 in which a bolt insertion hole 4 is formed in the center portion, and the plate-like portion. 2 and a projecting portion 6 projecting from the lower surface. The plate-like portion 2 has a disk shape (the shape shown in FIG. 1A) having a uniform thickness, and has a diameter of about 21 mm and a thickness f of about 1.5 mm.
[0019]
The bolt insertion hole 4 is formed in a substantially square shape into which a substantially square part 22 on the upper side of the bolt body head 18 described later can be fitted, and a bolt is inserted below the bolt insertion hole 4 of the plate-like part 2. A circular recess 5 having a diameter larger than that of the hole 4 and into which a circular portion 20 below the bolt body head 18 which will be described later is inserted is formed, so that the periphery of the bolt insertion hole 4 of the plate-like portion 2 is a seat for the circular portion 20. 7 is configured. The thickness g of the seat 7 is usually also of you about 0.5 to 1.5 mm, in the present embodiment is as g = 0.8 mm.
[0020]
The protrusion 6 has a triangular shape when viewed from the bottom, and a triangular plane inclined downward from the upstream side to the downstream side in the rotation direction X (clockwise direction) of the bolt body 14 when attached to the shoe sole. And has an inclined surface 8 (shape of FIG. 3E). That is, in the protrusion 6, the height q of the upstream portion in the rotation direction X of the bolt body 14 and the height p of the downstream portion have a relationship of p> q. In the stud of this example, eight protrusions 6 having the same shape are arranged at equal intervals along a circle concentric with the plate-like part 2. In this case, the protrusion 6 is arranged approximately at the center between the outer peripheral edge of the plate-like part 2 and the outer peripheral edge of the circular recess 5. Each protrusion 6 has a maximum width of 4 mm, a maximum length of 5 mm, a maximum height of 2.5 mm, and a minimum height of 1.5 mm. Further, the ratio of the occupied area of the protrusion 6 to the area of the lower surface of the plate-like part 2 (the area including the area of the bolt insertion hole 4) is about 23%.
[0021]
The bolt body 14 is made of steel, and has a head portion 18 and a shaft portion 16 having a thread on the outer periphery. The head 18 of the bolt body 14 of this example has a structure in which a circular portion 20 having a larger diameter than the substantially rectangular portion 22 is continuously provided below the substantially rectangular portion 22. A cross-shaped driver insertion groove 24 is formed on the surface of the circular portion 20.
[0022]
Sports shoe studs in this example, through the shank 16 of the bolt member 14 to the bolt inserted in hole 4 of the stud entity 12, provided with a shaft portion 16 to the sole by turning the circular portion 20 in the drawing direction of the arrow X It is attached to the shoe sole by screwing into the nut portion. In this case, since the bolt body head 18 above the substantially rectangular portion 22 in the bolt inserted in hole 4 is fitted, the stud entity 12 is fixed to the sole around with the bolt member 14. In addition, the circular portion 20 below the bolt body head 18 is fitted into the circular recess 5 of the stud main body 12, and the back surface of the circular portion 20 abuts against the receiving seat 7, whereby the surface of the head 18 of the bolt body The lower surface of the plate-like portion 2 of the stud main body 12 is flush with the surface.
[0023]
In the present embodiment forms a bolt inserted in hole 4 a polygon (substantially rectangular), thereby stud principal 12 are as turn together with the bolt member 14, the bolt member head 18 polygonal section bolts inserted in hole 4 may be used as the magnitude circular enough to pass through the shank 16 of the bolt member 14 without providing the (substantially rectangular portion 22). In this case, the entire back surface of the bolt body head 18 is in contact with the receiving seat 7. Further, the reason for providing the receiving seat 7 in this example is that when the stud main body 12 is attached to the shoe sole, the surface of the head 18 of the bolt body and the lower surface of the plate-like portion 2 of the stud main body 12 are substantially flush with each other. This is due to appearance considerations (see FIG. 7). If the head 18 of the bolt body does not mind that it protrudes from the lower surface of the plate-like portion 2, the formation of the receiving seat 7 can be omitted and the lower surface of the plate-like portion 2 can have the function of the receiving seat. Incidentally, bolts inserted in hole 4 in this case may be formed to a size sufficient to pass through the shank 16 of the bolt body 14.
[0024]
FIG. 10 is a perspective view showing another example of the bolt body used in the present invention. The bolt body 14 is formed by projecting a substantially conical columnar protrusion 30 at the center of the surface of the head 18. In the figure, reference numeral 32 denotes a square convex portion for fitting with the rotating tool of the bolt body 14. In this invention, the advantage that grip property improves further can be acquired by using the bolt body 14 in which the columnar protrusion was formed in the head surface. In this case, the height of the columnar protrusion 30 is such that when the stud is attached to the shoe sole, the lower end of the columnar protrusion 30 and the lowermost end of the protruding portion 6 of the stud main body 12 are at the same height position, or the columnar protrusion 30. It is appropriate that the lower end of the stud is formed at a height that is 1 to 2 mm below the lowermost end of the protrusion 6 of the stud main body 12. By doing in this way, the fault which the stud for spike shoes mentioned above has can be eliminated substantially. Note that the shape of the columnar protrusion 30 is not limited to a substantially conical shape, and may be an arbitrary shape such as a columnar shape, a truncated cone shape, or a triangular pyramid shape.
[0025]
In the stud of this example, since the stud main body 12 made of hard rubber has a certain degree of flexibility, the stud main body 12 is firmly fixed to the shoe sole by the bolt body 14. Further, since the surface of the head 18 of the bolt body 14 is small, even when the surface of the head 18 is grounded during walking or playing, a large external force is not applied to the bolt body 14 and the bolt body 14 is difficult to loosen. Further, when the protrusion 6 is grounded and a load is applied to the protrusion 6, the force of sliding the protrusion 6 in the same direction as the rotation direction X of the bolt body 14 when attached to the shoe sole, that is, against the shoe sole Thus, a force for tightening the bolt body 14 acts on each projection 6.
[0026]
【The invention's effect】
In the stud for sports shoes of the present invention, since the stud main body has a certain degree of flexibility, the stud main body is firmly and firmly fixed to the shoe sole by the bolt body. Further, even when the head surface of the bolt body is grounded during walking or playing, a large external force is not applied to the bolt body. Furthermore, the force which fastens a bolt body with respect to a shoe sole at the time of a walk or a play acts on a projection part. Therefore, in the sports shoes using the stud of the present invention, since the bolt body does not loosen, the stud does not fall off from the shoe sole during walking or playing.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a longitudinal section of a plate-shaped portion mainly composed of studs.
FIG. 2 is an explanatory view conceptually showing an example of a protrusion mainly composed of studs.
FIG. 3 is a perspective view showing various examples of protrusions mainly made of studs.
FIG. 4 is a perspective view showing various examples of protrusions mainly composed of studs.
FIGS. 5A and 5B are diagrams showing dimensions of an example of a protrusion mainly composed of studs, where FIG. 5A is a bottom view and FIG. 5B is a cross-sectional view.
FIG. 6 is a bottom view showing an example in which protrusions are arranged in a circular shape on the bottom surface of a stud main body.
FIG. 7 is a perspective view showing an example of a stud for sports shoes according to the present invention.
FIG. 8 is a perspective view showing a stud main body of the stud.
FIG. 9 is a perspective view showing a bolt body of the stud.
FIG. 10 is a perspective view showing another example of a bolt body.
[Explanation of symbols]
2 Plate-like part 4 Bolt insertion hole 6 Projection part 12 Stud main body 14 Bolt body 16 Shaft part 18 Head

Claims (5)

A stud main body formed of a hard rubber or a hard rubber-like elastic body and having a protrusion projecting on the lower surface of a plate-like portion having a bolt insertion hole formed in the center portion, and a bolt insertion hole whose shaft portion is a stud main body together is attached to the sole by comprising a the inserted bolt member is screwed into the nut portion provided with the hinge portion to the sole through the shank of the bolt body bolt inserted in hole of the stud principal to the stud A stud for sports shoes , wherein the main protrusion is a protrusion formed on the lower surface of an inclined surface that descends from the upstream side to the downstream side in the rotational direction of the bolt body when attached to the shoe sole. .   The stud for sports shoes according to claim 1, wherein the stud main body is made of hard rubber having a JIS-A hardness of 60 degrees or more or a hard rubber-like elastic body.   The stud for sports shoes according to claim 1 or 2, wherein the plate-like portion mainly composed of the stud and the protrusion are integrally formed.   The stud for sports shoes according to claim 1, 2, or 3, wherein a columnar protrusion is formed on a head surface of the bolt body.   When the stud is attached to the shoe sole, the lower end of the columnar protrusion and the lowermost end of the stud-based protrusion are at the same height, or the lower end of the columnar protrusion is the stud-based protrusion. The sports shoe stud according to claim 4, which has a height which is 1 to 2 mm below the lowermost end of the shoe.

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