JP6715875B2 - blade - Google Patents

Description

The present invention relates to a blade of a competition stick, for example, a blade used for a stick such as ice hockey and field hockey.

As a structure of a hockey stick, one having various configurations including a shaft and a blade is known.

As such a stick blade, a blade in which carbon is wound around a central member (referred to as a core material) is known.

As such a blade, for example, Patent Document 1 discloses a blade having a structure in which carbon is wound around the core material on the surface of the core material and these are crossed with an upper thread and a lower thread near the center of the core material. Has been done.

U.S. Pat. No. 5,741,574

However, in the method according to Patent Document 1, although the crossing point of the yarn is arranged inside the blade to prevent the yarn from slipping off, the crossing occurs near the center of the core material due to the deformation of the core material that is repeatedly received during use. Since the loosening of the upper thread and the lower thread occurs, the reinforcement by the thread becomes insufficient and it is difficult to secure the durability.

The present invention has been made in view of the above circumstances, and an object of the present invention is to make the core member deform during use by setting the intersecting region of the reinforcing yarn to a predetermined region other than the central region of the core member. Even in the case of doing so, the loosening of the reinforcing yarn in the crossing region is reduced, and the reinforcing yarn is made as linear as possible in the through hole of the blade to improve the reinforcing force of the reinforcing yarn, thereby improving durability. To improve. Other objects of the invention will be apparent by reference to the entire specification.

A blade according to an embodiment of the present invention includes a core member, a front body member formed on the front side of the core member, and a rear body member formed on the rear surface of the core member, A first reinforcing thread formed on the surface of the front-side body member, a second reinforcing thread formed on the surface of the rear-side body member, the core member, the front-side body member, and the rear-side body member. A plurality of through-holes that pass through together, the first reinforcing yarn and the second reinforcing yarn in each through-hole of the plurality of through-holes in the height direction of the through-hole. It is configured to intersect at a position in the range of about one-third of the core member from the front surface side of the core member or at a position in the range of about one-third of the core member from the rear surface side of the core member. It

The blade according to the embodiment of the present invention is used for hockey.

The first reinforcing yarn or the second reinforcing yarn in the blade according to the embodiment of the present invention is, in the height direction of the through hole, in each of the through holes, the one third of the core member. At positions other than the position in the range of, the linear shape is formed.

The first reinforcing yarn and the second reinforcing yarn in the blade according to the embodiment of the present invention are impregnated with a thermosetting resin.

The first reinforcing yarn and the second reinforcing yarn in the blade according to the embodiment of the present invention are the front side main body member and the rear side main body member in each through hole when viewed in the height direction of the through hole. At the position of, it is formed in a substantially linear shape.

The first reinforcing yarn and the second reinforcing yarn in the blade according to the embodiment of the present invention are the front side main body member and the rear side main body member in each through hole when viewed in the height direction of the through hole. At the position of, the two first reinforcing yarns and the second reinforcing yarns are each formed in a substantially linear shape.

The first reinforcing yarn in the blade according to the embodiment of the present invention has a larger yarn strength than the second reinforcing yarn. The first reinforcing yarn in the blade according to the embodiment of the present invention has a larger linear density than the second reinforcing yarn.

In the blade according to the embodiment of the present invention, the through holes are formed more densely in a region where the load is higher on the surface of the blade.

A blade according to an embodiment of the present invention includes a core member, a front body member formed on the front side of the core member, and a rear body member formed on the rear surface of the core member, A first reinforcing thread formed on the surface of the front-side body member, a second reinforcing thread formed on the surface of the rear-side body member, the core member, the front-side body member, and the rear-side body member. A plurality of through-holes that pass through together, the first reinforcing yarn and the second reinforcing yarn in each through-hole of the plurality of through-holes in the height direction of the through-hole. In view of the above, the front side body member or the rear side body member is configured to intersect with each other.

According to the above-described embodiment, the crossover region of the reinforcing yarn is set to a predetermined region other than the central region of the core member, so that even if the core member is deformed during use, the loosening of the reinforcing yarn in the crossover region is caused. Is reduced and the reinforcing yarn is made as linear as possible in the through hole of the blade, whereby the reinforcing force of the reinforcing yarn is improved, and thus the durability can be improved.

It is sectional drawing which expanded a part of blade which concerns on one Embodiment of this invention. It is a figure which shows the thread reinforcement of the blade which concerns on one Embodiment of this invention. It is a figure which shows the thread reinforcement of the blade which concerns on one Embodiment of this invention. It is a figure which shows the thread reinforcement of the blade which concerns on one Embodiment of this invention. It is a figure which shows the thread reinforcement of the blade which concerns on one Embodiment of this invention. It is a figure which shows the thread reinforcement of the blade which concerns on one Embodiment of this invention.

Embodiments of a blade according to the present invention will be specifically described below with reference to the accompanying drawings. Elements common to a plurality of drawings are designated by the same reference numerals throughout the plurality of drawings. It should be noted that the drawings are not necessarily drawn to scale for convenience of explanation.

The blade according to the embodiment of the present invention can be used for a stick for sports competition, and for example, can be used for a stick such as ice hockey and field hockey.

Next, FIG. 1 is a sectional view showing an embodiment of the blade 1 according to the present invention. As shown, a blade 1 according to an embodiment of the present invention includes a core member 2, a front side main body member 5 formed on a front side 3 of the core member 2, and a rear side 4 of the core member 2. A rear surface main body member 7 formed, and a first reinforcing thread 9 formed on the surface 6 of the front main body member 5, and a second reinforcement formed on the surface 8 of the rear main body member 7. The thread 10 and a plurality of through holes 11 that pass through the core member 2, the front side main body member 5, and the rear surface side main body member 7 together are provided, and the first reinforcing thread 9 and the second reinforcing thread 9 are provided. 10 is a range of about one third of the core member 2 from the front surface side 3 of the core member 2 in each through hole 11 of the plurality of through holes 11 as viewed in the height direction of the through hole 11. Or at a position in the range of about one third of the core member 2 from the rear surface side 4 of the core member 2.

Thereby, by making the crossover region of the reinforcing yarns a predetermined region other than the central region of the core member, even when the core member is deformed during use, loosening of the reinforcement yarns in the crossing region is reduced, By making the reinforcing thread as straight as possible in the through hole of the blade, the reinforcing force of the reinforcing thread can be improved, and thus the durability can be improved.

The core member 2 in the blade 1 according to the embodiment of the present invention can use materials such as PVC, PET, polymethacrylimide, acrylic, and balsa. The material used for the core member 2 may have a specific gravity of 0.05 g/cm ³ -0.5 g/cm ³ .

The front side main body member 5 and the rear side main body member 7 in the blade 1 according to the embodiment of the present invention can use materials such as carbon, glass, aramid, etc., but fiber reinforced resin materials are appropriately used. be able to.

Further, in the example shown in FIG. 1, the core member 2, the front side main body member 5 formed on the front side 3 of the core member 2, and the rear side main body member 7 formed on the rear side 4 of the core member 2. And “is formed” means that one member is directly or indirectly formed on the other member. That is, in the above example, the front side main body member 5 or the rear side main body member 7 is directly formed on the core member 2, or other member (member consisting of one layer or a plurality of layers) is interposed. It may be configured to be formed. Further, the front surface side main body member 5 and the rear surface side main body member 7 themselves may be formed of a plurality of layers as well as a single layer form.

The first reinforcing yarn 9 and the second reinforcing yarn 10 in the blade 1 according to the embodiment of the present invention are carbon, glass, aramid, boron, nylon, SiC, polyester, polyethylene, metal, acrylic, twisted yarn and untwisted yarn. , Mixed yarn, etc. are envisioned, but are not limited to these. Further, the first reinforcing yarn 9 and the second reinforcing yarn 10 in the blade 1 according to the embodiment of the present invention may be impregnated with a thermosetting resin in advance. Epoxy resins, phenolic resins, unsaturated polyesters, etc. are envisioned as thermosetting resins, but are not limited to these. Further, the first reinforcing yarn 9 and the second reinforcing yarn 10 in the blade 1 according to the embodiment of the present invention are impregnated with at least a part of the resin of the front body member 5 and the rear body member 7. It doesn't matter.

The first reinforcing yarn or the ninth reinforcing yarn 10 in the blade 1 according to the embodiment of the present invention is approximately 3 times as large as the core member 2 in each through hole 11 when viewed in the height direction of the through hole 11. At positions other than the position in the range of one-half, it is formed in a substantially linear shape. Here, the diameter (A) of the through hole 11 is formed to be about 0.3 mm-3.0 mm. Since the thickness (B) of the core member 2 is about 2 mm-10 mm, the range (C) about 1/3 of the core member 2 is about 0.7 mm-3.3 mm. The position (relative position D) where the first reinforcing yarn 9 and the second reinforcing yarn 10 intersect with each other in the blade 1 according to the embodiment of the present invention is the surface of the front side main body member 5 or the rear side main body member 7. It is formed about 0.2 mm to 0.5 mm inside the position of the first reinforcing yarn 9 or the second reinforcing yarn 10.

The first reinforcing yarn 9 and the second reinforcing yarn 10 in the blade 1 according to the embodiment of the present invention are seen in the height direction of the through hole 11 in each through hole 11, and the front side main body member 5 and At the position of the rear surface side main body member 7, it is formed in a substantially linear shape.

The first reinforcing yarn 9 and the second reinforcing yarn 10 in the blade 1 according to the embodiment of the present invention are seen in the height direction of the through hole 11 in each through hole 11, and the front side main body member 5 and At the position of the rear body member 7, the two first reinforcing threads 9 and the second reinforcing threads 10 are formed in a substantially linear shape.

The first reinforcing yarn 9 and the second reinforcing yarn 10 in the blade 1 according to the embodiment of the present invention may be the same kind of thread material or different kinds of thread material. Further, the first reinforcing yarn 9 and the second reinforcing yarn 10 in the blade 1 according to the embodiment of the present invention may be formed to have the same (including substantially the same) thickness, or different thicknesses. It may be formed.

The first reinforcing yarn 9 in the blade 1 according to the embodiment of the present invention can be formed to have a greater yarn strength than the second reinforcing yarn 10. Further, the first reinforcing yarn 9 in the blade 1 according to the embodiment of the present invention can be formed to have a linear density larger than that of the second reinforcing yarn 10. Since the first reinforcing yarn 9 is a main reinforcing yarn for reinforcement in the thickness direction of the molded product, and the second reinforcing yarn 10 can be an auxiliary material, a lighter yarn may be selected, Contributes to weight reduction of the entire molded product. The reinforcing effect of these reinforcing threads is against tensile, compression, and shear in the thickness direction of the molded product, and particularly when the molded product is deformed, a high shear strain is generated in the core member near the center of the thickness, Since the reinforcing thread is present, it becomes easy to secure sufficient strength.

A blade 1 according to another embodiment of the present invention includes a core member, a front side main body member formed on the front side of the core member, and a rear side main body member formed on the rear side of the core member. A first reinforcing thread formed on the surface of the front body member, a second reinforcing thread formed on the surface of the rear body member, the core member, the front body member, and the rear surface side. A plurality of through holes penetrating through the main body member together, wherein the first reinforcing thread and the second reinforcing thread have a height of the through hole in each of the through holes of the plurality of through holes. When viewed in a direction, the front side body member or the rear side body member is configured to intersect at the position.

Thus, by making the crossover region of the reinforcing yarn the region of the front side main body member or the rear side main body member other than the core member, even when the core member is deformed during use, the reinforcement yarn in the crossover region is By reducing the slack and making the reinforcing thread as straight as possible in the through hole of the blade, the reinforcing force of the reinforcing thread can be improved and thereby the durability can be improved.

Next, FIG. 2 shows a mode of the thread reinforcement 20 in which the mode of the thread reinforcement in FIG. 1 is viewed on the entire blade surface. In FIG. 2, a state in which the first reinforcing yarn 9 is formed on the surface of the blade 1 is shown. As shown in the drawing, the first reinforcing yarn 9 is spirally formed on the surface of the blade 1. In the illustrated example, the entire width (E) of the spiral thread reinforcement 20 is formed to be about 250 mm. The first reinforcing threads 9 can be formed on the surface of the blade 1 in about 3-10 rows with a pitch of 3 mm-20 mm (a distance between two through holes along the traveling direction of the reinforcing threads).

The area density in a region (X) on the left side of the center of the paper in FIG. 2 can be formed to be different from the area density in a region (Y) on the right side of the center of the paper in FIG. In this case, the surface density in the right region (Y) is formed to be higher than the surface density in the left region (X), and can be set to about 1.3 to 3 times, for example. Further, the surface density in the right region (Y) can be 0.002-0.05 holes/mm ² . Here, the surface density is defined as the number of through holes 11 (where the first reinforcing yarn 9 is arranged) per unit area mm ² . The through holes 11 can be configured to be formed more densely in the region of the surface of the blade 1 where the load is higher. This makes it possible to further improve the reinforcing force of the reinforcing yarn in a place where the load is high and to further improve the durability.

3 to 6 show another mode of the thread reinforcement 20 in which the mode of the thread reinforcement 20 in FIG. 1 is viewed on the entire blade surface. In the mode shown in FIG. 3, the plurality of yarn reinforcements 20 are linearly formed in the longitudinal direction of the blade 1, and the length of the yarn reinforcements 20 in the central region is the longest. Is formed short. As a result, it becomes possible to further improve the reinforcing force of the reinforcing yarn in a place where the load is high and to further improve the durability.

In the mode shown in FIG. 4, the yarn reinforcement 20 is formed symmetrically with the mode in FIG. As a result, similarly to the embodiment in FIG. 2, it becomes possible to further improve the reinforcing force of the reinforcing yarn in a place where the load is high, and to further improve the durability.

In the embodiment shown in FIG. 5, the plurality of yarn reinforcements 20 are formed in a straight line perpendicular to the longitudinal direction of the blade 1. As a result, it becomes possible to further improve the reinforcing force of the reinforcing yarn in a place where the load is high and to further improve the durability.

In the mode shown in FIG. 6, the yarn reinforcement 20 is formed in a zigzag shape in the longitudinal direction of the blade 1. As a result, it becomes possible to further improve the reinforcing force of the reinforcing yarn in a place where the load is high and to further improve the durability.

The mode of each thread reinforcement 20 shown in FIGS. 2 to 6 is merely an example, and other modes of the thread reinforcement 20 can be appropriately adopted. Further, the width (E) of the entire yarn reinforcement 20 on the surface of the blade 1 can be appropriately set according to the load region and degree. Further, the pitch of the first reinforcing yarns 9 and the number of rows of the yarn reinforcing members 20 on the surface of the blade 1 can be appropriately set according to the load region and degree. As a result, it becomes possible to further improve the reinforcing force of the reinforcing yarn in a place where the load is high and to further improve the durability.

The dimensions, materials, and arrangements of each component described herein are not limited to those explicitly described in the embodiments, and each component may be included in the scope of the present invention. Can be modified to have different dimensions, materials, and configurations. In addition, components that are not explicitly described in this specification may be added to the described embodiments, or some of the components described in each embodiment may be omitted.

1 Blade 2 Core Member 3 Front Side 4 Rear Side 5 Front Side Main Body Member 6 Surface 7 Rear Front Side Main Body Member 8 Surface 9 First Reinforcing Thread 10 Second Reinforcing Thread 11 Through Hole 20 Thread Reinforcing

Claims (10)

A blade comprising a core member, a front body member formed on the front surface side of the core member, and a rear body member formed on the rear surface side of the core member,
A first reinforcing thread formed on the surface of the front-side body member, a second reinforcing thread formed on the surface of the rear-side body member, the core member, the front-side body member, and the rear-side body member. A plurality of through-holes that pass through together, the first reinforcing yarn and the second reinforcing yarn in each through-hole of the plurality of through-holes in the height direction of the through-hole. It is configured to intersect at a position in the range of about one-third of the core member from the front surface side of the core member or at a position in the range of about one-third of the core member from the rear surface side of the core member. A blade characterized by that. The blade according to claim 1, wherein the blade is used for hockey. The first reinforcing thread or the second reinforcing thread is located in a position other than the position within the range of about one third of the core member in each through hole when viewed in the height direction of the through hole. The blade according to claim 1 or 2, which is formed in a substantially linear shape. The blade according to any one of claims 1 to 3, wherein the first reinforcing yarn and the second reinforcing yarn are impregnated with a thermosetting resin. The first reinforcing yarn and the second reinforcing yarn are substantially linear at the positions of the front surface side main body member and the rear surface side main body member in the height direction of the through holes in the respective through holes. The blade according to any one of claims 1 to 4, which is formed. The first reinforcing yarn and the second reinforcing yarn have two first reinforcing yarns at the positions of the front-side main body member and the rear-side main body member in the height direction of the through-holes in the respective through-holes. The blade according to claim 5, wherein the first reinforcing yarn and the second reinforcing yarn are each formed in a substantially linear shape. The blade according to any one of claims 1 to 6, wherein the first reinforcing yarn has a greater yarn strength than the second reinforcing yarn. The blade according to any one of claims 1 to 7, wherein the first reinforcing yarn has a linear density higher than that of the second reinforcing yarn. The blade according to any one of claims 1 to 8, wherein the through holes are formed more densely in a region where a load is higher on a surface of the blade. A blade comprising a core member, a front body member formed on the front surface side of the core member, and a rear body member formed on the rear surface side of the core member,
A first reinforcing thread formed on the surface of the front-side body member, a second reinforcing thread formed on the surface of the rear-side body member, the core member, the front-side body member, and the rear-side body member. A plurality of through-holes that pass through together, the first reinforcing yarn and the second reinforcing yarn in each through-hole of the plurality of through-holes in the height direction of the through-hole. A blade, characterized in that it is configured to intersect at the position of the front body member or the rear body member.

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