JPH0633842Y2 - Shoe sole - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> The present invention relates to a sole suitable for sports shoes such as golf shoes.

<< Prior Art >> In recent years, various fiber-reinforced composite materials have been developed and applied in many fields. In particular, a fiber-reinforced composite material composed of a composite of carbon or other inorganic fibers and whiskers with a thermosetting resin, due to its excellent properties such as light weight and high strength,
There are many examples of applications in the field of shoe soles.

For example, Japanese Utility Model Application Laid-Open No. 62-119804 discloses a technique in which a reinforcing sheet made of a fiber-reinforced composite material is attached over substantially the entire surface of a shoe sole body made of a thermoplastic resin. Further, Japanese Utility Model Laid-Open No. 62-197905 discloses a technique of attaching a reinforcing plate made of a fiber-reinforced composite material to a non-stepped portion of a shoe sole body. Further, JP-A-2-36801 discloses a technique of attaching a reinforcing plate having a wide toe side from the stepped portion of the shoe sole body to the vicinity of the heel portion.

<< Problems to be solved by the invention >> In sports shoes, loads such as bending and twisting act on not only the front-back direction but also the left-right direction and various other directions on the sole. Therefore, even when a reinforcing plate made of a fiber-reinforced composite material is used, various modifications have been made to the shape and arrangement of the reinforcing plate as described above so as to obtain appropriate bendability and resilience.

By the way, the inventor has been studying various sports shoes for many years. As a result, in the sole of the shoe so far,
When performing a special operation, the sole of the sole, which is the part where the foot is not originally bent, extends from the heel to the front of the tread, causing the sole of the sole to fall or lose its shape. It turns out that there is. It was also found that if the rigidity is increased so as to prevent this, the proper bendability and resilience from the stepped portion to the toe portion are likely to be impaired during normal times such as walking.

Taking a golf shoe as an example, when the shot moves forward, only the side edges of both feet in the same direction (in the case of a right hitter, the outer edge of the left foot and the inner edge of the right foot) land, and the sole A completely different load is applied.

If the reinforcing plate has a defective shape, etc. against such a special uneven load, the reinforcing plate does not always function sufficiently, and the part from the heel to the front of the tread part may be dropped or deformed. It may happen. Also, the warp deformation remains from the root of the wearer's toes to the toe side,
The entire shoe sole may not land before the shot, or proper resilience may not be obtained during the shot. Furthermore, when walking, it may not be possible to exhibit appropriate flexibility and resilience from the stepped part to the toe part.

The present invention has been made in view of such circumstances, and it is possible to reliably prevent the occurrence of a drop or a deformation in the portion from the heel to the front of the tread, even when an uneven load is applied. An object of the present invention is to provide a shoe sole capable of sufficiently exhibiting appropriate flexibility and resilience during walking in a portion extending from the attachment portion to the toe portion.

<Means for Solving the Problem> The invention of claim 1 is to provide a sole plate made of leather, resin or other flexible material with a reinforcing plate made of fiber reinforced composite material containing carbon or other hard inorganic fiber. A shoe sole that is attached, and as the reinforcing plate, a rear reinforcing plate extending from a substantially front end position of the heel portion of the shoe sole body to the vicinity of the stepping portion, and a sole arranged separately from the rear reinforcing plate. And a front reinforcing plate extending from the tip side of the base of the finger to the toe side.

The invention of claim 2 is characterized in that the front end side of the rear reinforcing plate and the rear end side of the front reinforcing plate are bifurcated to the left and right, respectively.

According to the invention of claim 3, the front end edge of the rear reinforcing plate is inclined rearward from the first finger side of the toe toward the fifth finger side, and the rear end edge of the front reinforcing plate is the first finger side of the toe. It is characterized in that it inclines forward toward the fifth finger side.

The invention of claim 4 is characterized in that the inclination angle is set within a range of 10 to 30 degrees with respect to the transverse line of the shoe sole.

<Operation> According to the invention of claim 1, the rear reinforcing plate extends from a portion of the sole body excluding the rear end of the heel portion to the vicinity of the step portion, and the front reinforcing plate extends from the tip side of the root portion of the toe. Since it extends to the toe side, the reinforcing effect extends to the entire front and rear direction of the shoe sole. Therefore, an excellent shape-retaining function is given to the entire sole, and there is no drop or shape loss at the rear of the stepping portion or warpage at the toe portion. In addition, the reinforcing plate is omitted from the stepped part of the sole to the base of the toes.
The flexibility of the sole of the shoe is demonstrated. Therefore, for example, when applied to a golf shoe, even if only the toe side of the side edges in the same direction of both feet is landed due to the weight shift during the shot, the shoe sole has a high degree of flexibility. Following the deformation, a good wearing feeling can be obtained. Moreover, since the rear reinforcing plate is separated from the front reinforcing plate, even if, for example, a twisted state occurs from the stepping portion to the toe portion, the load on the front reinforcing plate is not directly transmitted to the rear reinforcing plate. Instead, it is absorbed by the flexible sole body portion. Therefore, the load such as bending or twisting in front of the stepping part does not adversely affect the shape retention effect behind the stepping part. In addition, moderate flexibility and rebound can be similarly obtained when walking.

According to the second aspect of the present invention, the front end side of the rear reinforcing plate and the rear end side of the front reinforcing plate are bifurcated to the left and right, so that they are simply wide. However, even if a twisting load is generated on one side edge of the sole main body at the stepped portion between the reinforcing plates, it is not directly transmitted to the other side edge, and therefore, the Deformation is prevented from occurring.

According to the invention of claim 3, the front end edge of the rear reinforcing plate is inclined rearward from the first finger side of the toe toward the fifth finger side,
Since the rear edge of the front reinforcing plate is inclined forward from the first finger side to the fifth finger side of the toes, the tread portion located between both the reinforcing plates has an inner edge side to an outer side. There will be a flexible sole body portion that fans out toward the rim. This part is the part that is most likely to be deformed when walking or exercising, so its deformation tolerance is improved,
It also follows the foot deformation well.

According to the invention of claim 4, the inclination angles of the front edge of the rear reinforcing plate and the rear edge of the front reinforcing plate are set within the range of 10 to 30 degrees with respect to the transverse line of the shoe sole. A flexible portion is arranged at the base of a human toe that is inclined within a range of substantially the same angle, and the bending of the toe is appropriately followed.

<< Embodiment >> An embodiment of the present invention will be described below with reference to the drawings. It should be noted that the present embodiment relates to the sole of a golf shoe.

FIG. 1 shows a plan view of a pair of left and right soles constituting one pair of golf shoes, and FIGS. 2 to 4 show an outer appearance and a sectional shape of one sole.

Each shoe sole 1a, 1b has a shoe sole body 2 made of leather, resin or other flexible material. That is, the shoe sole main body 2 is formed by laminating different materials, and the heel plate 2b is adhered to the lower surface of the main body plate 2a made of, for example, rubber sponge, and the artificial leather layer 2c such as urethane is formed on each of these lower surfaces. Has been done.
A frame member 2d made of rubber or the like is adhered to the peripheral portion of the upper surface of the main body plate 2a.

As a reinforcing plate made of a fiber-reinforced composite material containing carbon and other hard inorganic fibers,
A rear reinforcing plate 3 and a front reinforcing plate 4 are attached. Each of the reinforcing plates 3 and 4 is made by compounding carbon fibers and boron fibers in a thermoplastic resin at a ratio of, for example, 78:22, and is molded by hot pressing after braiding, and has a wall thickness of about 0.3 mm. Each of these reinforcing plates 3 and 4 is fitted into a recess 5 formed in the upper surface of the shoe sole main body 2 so that the surfaces thereof are flush with each other, and is fixed by adhesion or fusion.

The rear reinforcing plate 3 has a length in the front-rear direction extending from a substantially front end position of the heel portion 6 of the shoe sole body 2 to the vicinity of the stepping portion 8. The rear reinforcing plate 3 has a width that gradually decreases from the front end side toward the rear end side, and both side edges thereof have a similar shape along the both side edges of the shoe sole body 2. Then, the front edge 3a of the rear reinforcing plate 3 is inclined rearward from the first finger side to the fifth finger side of the toe, and its inclination angle θ is 10 to 30 degrees with respect to the transverse line A of the shoe sole. It is set within the range of. The front end side of the rear reinforcing plate 3 is bifurcated right and left.

On the other hand, the front reinforcing plate 4 is arranged separately from the rear reinforcing plate 3 and has a length in the front-rear direction extending from the root tip 7 side of the toe to the toe 9 side. This front reinforcement plate 4
Has a width that gradually decreases from the stepped portion 8 toward the front end side, and both side edges thereof have a similar shape along the both side edges of the shoe sole body 2. Then, the rear edge 4a of the front reinforcing plate 4 is inclined rearward from the first finger side of the toe toward the fifth finger side, and the inclination angle θ is 10 degrees to the transverse line A of the shoe sole. It is set within the range of 30 degrees. The rear end side of the front reinforcing plate 4 is bifurcated right and left.

A space portion between the contours of the shoe sole body 2 and each of the reinforcing plates 3 and 4 is a spike mounting space, and the spike mounting member 10 is embedded in the lower surface of the shoe sole body 2 at this space portion. ing. Spike mounting member 10 has screw holes
10a is provided, and spikes are detachably screwed into the screw holes 10a.

According to the configuration of the present embodiment described above, the rear reinforcing plate 3 extends from a portion of the shoe sole body 2 excluding the rear end of the heel portion 6 to the vicinity of the step portion 7, and the front reinforcing plate 4 is attached to the toes. Since it extends from the root tip 7 side to the toe 9 side, the reinforcing effect is the sole.
It extends over the entire area of 1a and 1b in the front-back direction. Therefore, the soles 1a, 1b
An excellent shape-retaining function is given to the whole, and there is no drop or shape loss at the rear of the stepping portion 8 and no warp or deformation of the toe portion. Further, the reinforcing plate is omitted in the vicinity of the stepped portion of the shoe sole body 2, so that the flexibility of the shoe sole body 2 is exerted, and therefore, it is suitable for uneven load during walking or exercise. Flexibility and resilience can be fully exhibited. Especially when shifting the weight during a golf shot, there is no warp in the toe 5 parts when the soles of both feet are in the landing state before the shot, and the inner and outer edges of the soles of the feet are all uniform during the shot. With respect to a special torsional deformation that causes a landing state in any direction, the effect of flexibility and resilience is great, which is preferable as a sole for a golf shoe. Moreover, the rear reinforcing plate 3 is the front reinforcing plate 4
Since it is separated from the step portion 8 to the toe portion 9
Even if a twisted state occurs, the load applied to the front reinforcing plate 4 is not directly transmitted to the rear reinforcing plate 3 and is absorbed by the flexible sole body 2 portion. Therefore, the load such as bending and twisting in front of the stepping part 8 does not adversely affect the shape retention effect behind the stepping part 8. In addition, moderate flexibility and rebound can be similarly obtained when walking.

Further, since the front end side of the rear reinforcing plate 3 and the rear end side of the front reinforcing plate 4 are bifurcated to the left and right, respectively, they are simply wide. Differently, for example, even if a torsional load is generated on one side edge side of the shoe sole body 2 at the stepped portion between the reinforcing plates 3 and 4, it is not directly transmitted to the other side edge side, and therefore a different deformation is caused. Are prevented from occurring.

Moreover, the front end edge 3a of the rear reinforcing plate 3 inclines backward from the first finger side of the toe toward the fifth finger side, and the rear end edge 4a of the front reinforcing plate 4 extends from the first finger side of the toe. Since it is inclined forward toward the fifth finger side, the stepping portion 8 located between the reinforcing plates 3 and 4 has a flexible sole body portion that spreads in a fan shape from the inner edge side to the outer edge side. Will exist. Since this portion is the portion that is most likely to be deformed during walking or exercise, the deformation tolerance is improved and the foot deforms well.

Furthermore, since the inclination angle θ of the front edge 3a of the rear reinforcing plate 3 and the rear edge 4a of the front reinforcing plate 4 is set within the range of 10 degrees to 30 degrees with respect to the transverse line A of the shoe sole, A flexible portion is arranged at the base of the toe of a person who inclines within the range of substantially the same angle, and the bending of the toe or the like is satisfactorily followed.

<Effects of the Invention> As described above, according to the present invention, the rear reinforcing plate extends from a portion of the shoe sole body excluding the heel rear end to the vicinity of the tread, and the front reinforcing plate attaches to the toes. Since it extends from the tip side of the root part to the toe side, the reinforcing effect extends to the entire front and rear direction of the shoe sole. Therefore, an excellent shape-retaining function can be given to the entire shoe sole, and it is possible to prevent a drop or a shape loss at the rear of the stepped portion. Further, the reinforcing plate is omitted in the vicinity of the stepped portion of the shoe sole body, so that the flexibility of the shoe sole body is exhibited. Therefore, for example, when applied to golf shoes, even if only the toe side of the side edges in the same direction of both feet is landed due to weight movement during shots, the front part of the sole has a high degree of flexibility. With this, it is possible to follow the deformation of the foot and obtain a good wearing feeling. Further, since the front reinforcing plate is arranged on the toe side, it is possible to obtain appropriate bendability and resilience against a shot operation while preventing warp deformation. Moreover,
Since the rear reinforcing plate is separated from the front reinforcing plate, even if a twisting state occurs from the stepping portion to the toe portion, for example, the load on the front reinforcing plate is not directly transmitted to the rear reinforcing plate, It is absorbed by the flexible sole body portion. Therefore, it is possible to prevent a load such as bending or twisting in front of the step portion from adversely affecting the shape retention effect behind the step portion. In addition, it is possible to obtain appropriate bendability and resilience when walking.

Further, since the front end side of the rear reinforcing plate and the rear end side of the front reinforcing plate have a bifurcated shape to the left and right, respectively, different from those that are simply wide shapes, For example, even if a torsional load is generated on one side edge side of the shoe sole body at the stepped portion between the both reinforcing plates, it is not directly transmitted to the other side edge side, and therefore, it is possible to prevent heterogeneous deformation from occurring. .

Moreover, the front edge of the rear reinforcing plate is inclined rearward from the first finger side of the toe toward the fifth finger side, and the rear edge of the front reinforcing plate is from the first finger side to the fifth finger side of the toe. Since it is inclined forward toward, the stepping portion located between both the reinforcing plates has a flexible sole body portion that spreads in a fan shape from the inner edge side to the outer edge side. Since this portion is the portion that is most likely to be deformed when walking or exercising, the deformation tolerance can be improved, and the deformation of the foot can be well followed.

Furthermore, the inclination angle of the front edge of the rear reinforcing plate and the rear edge of the front reinforcing plate is 10 degrees to 30 degrees with respect to the transverse line of the sole.
Since it is set within the range of degrees, a flexible part will be placed at the base of the human toe that inclines within the range of approximately the same angle, so that it can follow well the bending of the toes etc. become.

[Brief description of drawings]

FIG. 1 shows an embodiment of a shoe sole according to the present invention, FIG. 1 is a plan view showing a pair of shoe soles, FIG. 2 is a perspective view showing one shoe sole, and FIG. 3 is one shoe sole. The bottom view and FIG. 4 are partial cross-sectional views showing one shoe sole. 1a, 1b ... sole, 2 ... sole body 3 ... rear reinforcing plate, 3a ... front edge 4 ... front reinforcing plate, 4a ... rear edge 6 ... heel, 7 ... tip of toe base 8 ... tread Attachment part, 9 ... Toe part A ... Transverse line θ ... Inclination angle between the edge of the reinforcing plate and the transverse line

Claims (4)

[Scope of utility model registration request] 1. A shoe sole comprising a shoe sole body made of leather, a resin or other flexible material, and a reinforcing plate made of a fiber reinforced composite material containing carbon or other hard inorganic fiber attached thereto. As the reinforcing plate, a rear reinforcing plate extending from a substantially front end position of the heel portion of the shoe sole body to the vicinity of the stepping portion, and the rear reinforcing plate is separately arranged.
A shoe sole comprising a front reinforcing plate extending from a tip end side of a base of a toe to a toe side. 2. The shoe sole according to claim 1, wherein the front end side of the rear reinforcing plate and the rear end side of the front reinforcing plate are bifurcated right and left, respectively. . 3. The front end edge of the rear reinforcing plate is inclined rearward from the first finger side of the toe toward the fifth finger side, and the rear end edge of the front reinforcing plate is first from the first finger side of the toe. 3. Inclining forward toward the five-finger side, claim 1 or 2
Sole described in. 4. The shoe sole according to claim 3, wherein the inclination angle is set within a range of 10 degrees to 30 degrees with respect to the transverse line of the shoe sole.