JP2019177085A - blade - Google Patents

Abstract

[PROBLEMS] A blade capable of securing durability due to insufficient reinforcement due to loosening of an upper thread and a lower thread intersecting in the vicinity of the center of a core material due to deformation of a core material repeatedly received during use. Offer. A blade (1) includes a core member (2), a front side main body member (5) formed on the front side of the core member, and a rear side main body member (7) formed on the rear side of the core member. A first reinforcing thread 9 formed on the surface of the main body member, a second reinforcing thread 10 formed on the surface of the rear main body member, and penetrate the core member, the front main body member, and the rear main body member together. A plurality of through-holes, wherein the first reinforcing yarn and the second reinforcing yarn are located on the front side of the core member when viewed in the height direction of the through-hole in each of the plurality of through-holes. From the core member or approximately one-third of the core member from the rear side of the core member. [Selection diagram] Fig. 1

Description

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

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

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

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

US 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 coming off, the crossing is performed near the center of the core material due to the deformation of the core material repeatedly received during use. Since the upper thread and the lower thread are loosened, there is a problem that the reinforcement with the thread becomes insufficient and it is difficult to ensure the durability.

  The present invention has been made in view of the above circumstances, and the object of the present invention is to make the crossover region of the reinforcing yarn a predetermined region other than the central region of the core member, so that the core member is deformed during use. Even in such a case, the loosening of the reinforcing yarn in the crossing region is reduced, and the reinforcing yarn is made as straight as possible in the blade through-hole, thereby improving the reinforcing force in the reinforcing yarn, thereby improving durability. Is to improve. Other objects of the present invention will become apparent by referring to the entire specification.

  A blade according to an 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-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 penetrating both of the plurality of through-holes, wherein the first reinforcing thread and the second reinforcing thread are in the through-hole height direction of each of the plurality of through-holes. Thus, it is configured to cross at a position in a range of about one third of the core member from the front side of the core member or a position in a range of about one third of the core member from the rear side of the core member. The

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

  The first reinforcing thread or the second reinforcing thread in the blade according to the embodiment of the present invention is about one third of the core member when viewed in the height direction of the through hole in each through hole. In positions other than the position in the range, 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 impregnated with a thermosetting resin.

  The first reinforcing yarn and the second reinforcing yarn in the blade according to an embodiment of the present invention are the front-side main body member and the rear-side main body member as viewed in the height direction of the through-hole in each through-hole. In this position, it is substantially linear.

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

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

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

  A blade according to an 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-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 penetrating both of the plurality of through-holes, wherein the first reinforcing thread and the second reinforcing thread are in the through-hole height direction of each of the plurality of through-holes. In view of this, the front-side body member or the rear-side body member is configured to cross over.

  According to the above embodiment, the crossover region of the reinforcing yarn is a predetermined region other than the central region of the core member, so that even when the core member is deformed during use, the reinforcing yarn is loosened in the crossing region. And the reinforcing yarn is made as straight as possible in the through hole of the blade, so that the reinforcing force of the reinforcing yarn can be improved, thereby improving the durability.

It is sectional drawing to which some blades which concern on one Embodiment of this invention were expanded. It is a figure which shows the thread | yarn reinforcement of the braid | blade which concerns on one Embodiment of this invention. It is a figure which shows the thread | yarn reinforcement of the braid | blade which concerns on one Embodiment of this invention. It is a figure which shows the thread | yarn reinforcement of the braid | blade which concerns on one Embodiment of this invention. It is a figure which shows the thread | yarn reinforcement of the braid | blade which concerns on one Embodiment of this invention. It is a figure which shows the thread | yarn reinforcement of the braid | blade which concerns on one Embodiment of this invention.

  Hereinafter, embodiments of a blade according to the present invention will be specifically described with reference to the accompanying drawings. Components common to the plurality of drawings are denoted by the same reference numerals throughout the drawings. It should be noted that the drawings are not necessarily drawn to scale for convenience of explanation.

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

  Next, FIG. 1 is a cross-sectional view showing an embodiment of a blade 1 according to the present invention. As illustrated, a blade 1 according to an embodiment of the present invention includes a core member 2, a front-side body member 5 formed on the front side 3 of the core member 2, and a rear surface side 4 of the core member 2. A rear surface body member 7 formed, a first reinforcing thread 9 formed on the surface 6 of the front body member 5, and a second reinforcement formed on the surface 8 of the rear body member 7. A thread 10 and a plurality of through holes 11 penetrating the core member 2, the front body member 5, and the rear body member 7, the first reinforcing thread 9, and the second reinforcing thread 10 is a range of about one third of the core member 2 from the front side 3 of the core member 2 when viewed in the height direction of the through hole 11 in each through hole 11 of the plurality of through holes 11. Or 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 yarn a predetermined region other than the central region of the core member, even when the core member is deformed during use, the looseness of the reinforcing yarn in the crossing region is reduced, By making the reinforcing yarn as straight as possible in the through-hole of the blade, the reinforcing force of the reinforcing yarn can be improved, thereby improving the durability.

For the core member 2 in the blade 1 according to the embodiment of the present invention, materials such as PVC, PET, polymethacrylimide, acrylic, and balsa can be used. Material used for the core member 2 can be used those having a specific gravity of ^{0.05g / cm 3 -0.5g / cm 3} .

  For 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, for example, a material such as carbon, glass, or aramid can be used, but a fiber reinforced resin material is appropriately used. be able to.

  Further, in the example shown in FIG. 1, the core member 2, the front side body member 5 formed on the front side 3 of the core member 2, and the rear side body member 7 formed on the rear side 4 of the core member 2. However, “formed” means that one member is formed directly or indirectly on the other member. That is, in the above-described example, the front-side body member 5 or the rear-side body member 7 is formed directly on the core member 2 or other members (members composed of one layer or a plurality of layers) are interposed. It may be configured to be formed. Moreover, 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.

  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. A blended yarn or the like is assumed, but is not limited thereto. Moreover, the 1st reinforcement thread | yarn 9 and the 2nd reinforcement thread | yarn 10 in the braid | blade 1 which concern on one Embodiment of this invention may be impregnated with the thermosetting resin previously. As the thermosetting resin, an epoxy resin, a phenol resin, an unsaturated polyester, and the like are assumed, but not limited thereto. Further, the first reinforcing thread 9 and the second reinforcing thread 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 side body member 5 and the rear side body member 7. It doesn't matter.

  The first reinforcing thread 9 or the second reinforcing thread 10 in the blade 1 according to the embodiment of the present invention is about 3 of the core member 2 when viewed in the height direction of the through hole 11 in each through hole 11. At positions other than the position in the range of a half, it is substantially linear. Here, the diameter (A) of the through-hole 11 is formed to be about 0.3 mm to 3.0 mm. Since the thickness (B) of the core member 2 is about 2 mm-10 mm, the range (C) of about one third 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 in the blade 1 according to one embodiment of the present invention is the surface of the front side body member 5 or the rear side body member 7. From the position of the 1st reinforcement thread | yarn 9 or the 2nd reinforcement thread | yarn 10, it forms inside 0.2mm-0.5mm.

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

  The first reinforcing thread 9 and the second reinforcing thread 10 in the blade 1 according to the embodiment of the present invention are the front-side body member 5 and the first reinforcing thread 9 in each through-hole 11 as viewed in the height direction of the through-hole 11. At the position of the rear side main body member 7, two first reinforcing yarns 9 and second reinforcing yarns 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 type of yarn material or different types of yarn material. Further, the first reinforcing thread 9 and the second reinforcing thread 10 in the blade 1 according to the embodiment of the present invention may be formed to have the same thickness (including substantially the same) 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 higher 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 with a higher linear density than the second reinforcing yarn 10. 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. Therefore, a lighter yarn may be selected. Contributes to weight reduction of the entire molded product. The reinforcing effect of these reinforcing yarns is for tensile, compression, and shear in the thickness direction of the molded product.In particular, when the molded product is deformed, a high shear strain is generated in the core member near the thickness center. Since the reinforcing yarn exists, it is easy to ensure sufficient strength.

  A blade 1 according to another 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 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 body member, wherein the first reinforcing thread and the second reinforcing thread have a height of the through hole in each through hole of the plurality of through holes. When viewed in the direction, it is configured to cross at the position of the front-side body member or the rear-side body member.

  Thus, by setting the crossover region of the reinforcing yarn as 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 reinforcing yarn in the crossing region By reducing the looseness and making the reinforcing yarn as straight as possible in the through hole of the blade, it is possible to improve the reinforcing force of the reinforcing yarn, thereby improving the durability.

  Next, FIG. 2 shows a mode of the yarn reinforcement 20 in which the mode of yarn reinforcement in FIG. 1 is viewed over the entire blade surface. FIG. 2 shows a state in which the first reinforcing yarn 9 is formed on the surface of the blade 1. As shown in the figure, a first reinforcing thread 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 yarns 9 can be formed on the surface of the blade 1 by about 3-10 rows at a pitch of 3 mm-20 mm (interval between two through holes along the traveling direction of the reinforcing yarns).

The area density in the area (X) on the left side of the center of the sheet of FIG. 2 can be formed to be different from the area density in the area (Y) on the right side of the center of the sheet of FIG. In this case, the surface density in the right region (Y) is formed larger than the surface density in the left region (X), and can be, for example, about 1.3 to 3 times. Further, the surface density in the right region (Y) can be 0.002-0.05 holes / mm ² . Here, the areal density is defined as the number of holes of the through holes 11 (where the first reinforcing yarn 9 is disposed) per unit area mm ² . The through-holes 11 can be configured to be formed more densely in a region where the load is higher in the surface of the blade 1. Thereby, it is 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 embodiment of the yarn reinforcement in which the embodiment of the yarn reinforcement 20 in FIG. 1 is seen over the entire blade surface. In the embodiment 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 reinforcement 20 in the central region is the longest, and the length of the yarn reinforcement 20 increases toward the outside. Is formed short. Thereby, it is 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. 4, the yarn reinforcement 20 is formed symmetrically with the embodiment in FIG. Thereby, similarly to the embodiment in FIG. 2, it is 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, a plurality of yarn reinforcements 20 are formed in a straight line perpendicular to the longitudinal direction of the blade 1. Thereby, it is 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. 6, the yarn reinforcement 20 is formed in a zigzag shape in the longitudinal direction of the blade 1. Thereby, it is 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 yarn reinforcement 20 shown in FIG. 2-6 is merely an example, and other modes of the yarn reinforcement 20 can be appropriately employed. 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 reinforcements 20 on the surface of the blade 1 can be appropriately set according to the load region and degree. Thereby, it is 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 arrangement of each component described in this specification 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 arrangements. In addition, components that are not explicitly described in the present specification can be added to the described embodiments, or some of the components described in the embodiments can be omitted.

DESCRIPTION OF SYMBOLS 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 reinforcement thread 10 Second reinforcement thread 11 Through hole 20 Yarn reinforcement

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 penetrating both of the plurality of through-holes, wherein the first reinforcing thread and the second reinforcing thread are in the through-hole height direction of each of the plurality of through-holes. Thus, it is configured to cross at a position in a range of about one third of the core member from the front side of the core member or a position in a range of about one third of the core member from the rear 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 of the core member in the range of about one third as viewed in the height direction of the through hole in each through hole. The blade according to claim 1, wherein the blade 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 thread and the second reinforcing thread are substantially linear at the positions of the front body member and the rear body member, as viewed in the height direction of the through hole in each through hole. The blade according to any one of claims 1 to 4, wherein the blade is formed.   The first reinforcing thread and the second reinforcing thread have two second reinforcing threads at the positions of the front body member and the rear body member, as viewed in the height direction of the through hole in each through hole. 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 higher 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 higher linear density than 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 the load is higher in the 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 penetrating both of the plurality of through-holes, wherein the first reinforcing thread and the second reinforcing thread are in the through-hole height direction of each of the plurality of through-holes. Thus, the blade is configured to cross at the position of the front-side body member or the rear-side body member.

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