Rear grip base material, reel seat base material, and rear grip and reel seat formed from each of these.

Abstract

To provide a rear grip base material, a reel seat base material, and a rear grip and reel seat formed therefrom that use a base material which has an inner diameter adjustment layer and in which fibers of the inner diameter adjustment layer in a circumferential direction easily expand (stretch) outward in the radial direction during internal pressure molding, and that can support various dimensions of rod bodies of fishing rods to be fitted and bonded and can stabilize the molding quality while minimizing the number of laminates during internal pressure molding.SOLUTION: A rear grip base material according to one embodiment of the present invention includes: a body part 8; and a tubular fitting and bonding part 3 which is formed on one or both ends of the body part 8 and to which a rod body is fitted and bonded. The rear grip base material forms a rear grip 10 of a fishing rod through internal pressure molding. The tubular fitting and bonding part 3 includes an innermost layer 4, an inner diameter adjustment layer 5, a body layer 6 and an outermost layer 7. Each layer is a reinforced fiber resin layer.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a base material for a rear grip, a base material for a reel sheet, and a rear grip and a reel sheet formed therefrom.

Background Art

[0002] Conventionally, various fishing rods provided with a reel sheet for a fishing rod and a grip for a fishing rod are known.

[0003] In such a fishing rod, usually, a reel sheet for a fishing rod and a grip for a fishing rod are placed on the rod body, and a reel leg placement portion for placing a reel leg on the upper side or the lower side of the main body is formed on the reel sheet for a fishing rod.

[0004] As a method for forming a tubular body that can be used for such a fishing rod, for example, Patent Document 1 discloses a first step of forming a tubular laminate that extends in the axial direction and has a hollow portion inside by laminating prepregs, a second step of setting the laminate in a cavity of a mold, and a third step of heating and molding by pressing the laminate against the surface of the cavity while applying pressure to the hollow portion to expand the laminate in the cavity. The mold includes a first mold that forms a first range in the axial direction of the cavity, and the first mold is a non-divided mold that does not have a parting line extending in the axial direction on the surface of the cavity. A method for manufacturing a tubular body is disclosed.

[0005] Furthermore, Patent Document 2 discloses a wedge club shaft made of carbon fiber reinforced resin, wherein the bending rigidity of the tip portion, which is less than 150 mm from the tip, is 3.0 × 10⁶ kgf·mm² or less; the bending rigidity of the grip mounting portion, which is 650 mm or more from the tip, is 7.0 × 10⁶ kgf·mm² or more; the bending rigidity of the central portion, which is 350 mm or more and less than 500 mm from the tip, gradually increases from the tip side to the grip side at a gradient of 7,000 to 10,000 kgf·mm; and the bending rigidity of the base portion, which is 500 mm or more and less than 650 mm from the tip, gradually increases from the tip side to the grip side at a gradient of 12,000 to 20,000 kgf·mm. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2023-14787 [Patent Document 2] Japanese Patent Publication No. 2004-033638 [Overview of the project] [Problems that the invention aims to solve]

[0007] While Patent Document 1 discloses a method for forming a tubular body by applying pressure to its hollow portion, it does not disclose how to form grips or reel seats into which tubular bodies of various dimensions can be fitted. Even if grips or reel seats were formed using the tubular body forming method, there was a problem in that they had to be individually formed to match the desired dimensions and shapes.

[0008] Furthermore, while Patent Document 2 discloses a method for manufacturing a shaft by internal pressure molding, it does not disclose the formation of grips or reel seats that can accommodate shafts of various dimensions. Even if grips or reel seats are formed using the same shaft manufacturing method, there is a problem in that they must be individually molded to the desired dimensions and shapes.

[0009] The present invention has been made in view of the above circumstances, and its object is to provide a base material for a rear grip, a base material for a reel seat, and a rear grip and a reel seat formed therefrom, which can accommodate various dimensions of the rod body of a fishing rod to be fitted and bonded without using multiple base materials during internal pressure molding, by providing an inner diameter adjustment layer and using a base material in which the fibers of the inner diameter adjustment layer in the circumferential direction easily expand (stretch) radially outward during internal pressure molding, thereby stabilizing the molding quality. Other objects of the present invention will become clear by referring to the entire specification. [Means for solving the problem]

[0010] A rear grip base material according to one embodiment of the present invention comprises a main body portion and a cylindrical fitting adhesive portion formed at one or both ends of the main body portion to which the rod body is fitted and bonded, and is a rear grip base material for forming the rear grip of a fishing rod by internal pressure molding, wherein the fitting adhesive portion has an innermost layer, an inner diameter adjustment layer, a main body layer, and an outermost layer, and each layer is a layer of reinforced fiber resin.

[0011] In a rear grip substrate according to one embodiment of the present invention, the innermost layer, the main body layer, and the outermost layer are each formed by two or more reinforcing fiber prepreg sheets, each forming a layer that covers one circumference when viewed in the circumferential direction.

[0012] In a rear grip substrate according to one embodiment of the present invention, the inner diameter adjustment layer is formed using one or more reinforcing fiber prepreg sheets that are formed to extend at least once around the circumference when viewed in the circumferential direction.

[0013] In a rear grip substrate according to one embodiment of the present invention, the fibers of the reinforcing fiber resin of the inner diameter adjustment layer are oriented to be inclined at a range of 20 to 70 degrees with respect to the circumferential direction of the rear grip substrate.

[0014] In a rear grip base material according to one embodiment of the present invention, the inner diameter adjustment layer is formed by multiple layers of a single plain weave or twill weave fabric when viewed in the circumferential direction, and the fibers of the single plain weave or twill weave fabric are wound so as to be oblique to the circumferential direction of the rear grip base material at an angle of 20 to 70 degrees.

[0015] In a rear grip substrate according to one embodiment of the present invention, a portion of the innermost layer is formed to overlap with the inner diameter adjustment layer in the axial direction of the rear grip substrate.

[0016] In a rear grip substrate according to one embodiment of the present invention, a portion of the innermost layer is formed on the inner surface of the main body layer.

[0017] In a rear grip substrate according to one embodiment of the present invention, the main body portion of the rear grip substrate is formed such that the innermost layer, the main body layer, and the outermost layer are stretched.

[0018] A reel seat base material according to one embodiment of the present invention comprises a main body portion and a cylindrical fitting adhesive portion formed at one or both ends of the main body portion, to which a rod body is fitted and bonded, and is a reel seat base material for forming a reel seat of a fishing rod by internal pressure molding, wherein the fitting adhesive portion has an innermost layer, an inner diameter adjustment layer, a main body layer, and an outermost layer, and each layer is a layer of reinforced fiber resin.

[0019] A rear grip according to one embodiment of the present invention is formed by internal pressure molding using any of the above-mentioned base materials for rear grips.

[0020] A reel sheet according to one embodiment of the present invention is formed by internal pressure molding using the above-mentioned base material for the reel sheet. [Effects of the Invention]

[0021] According to the above embodiment, by providing an inner diameter adjustment layer and using a base material in which the fibers of the inner diameter adjustment layer in the circumferential direction are likely to expand (extend) outward in the radial direction during internal pressure molding, it is possible to suppress the number of laminated sheets to a minimum during internal pressure molding, and to correspond to various dimensions of the rod body of the fishing rod to be fitted and adhered, and to provide a base material for a rear grip, a base material for a reel seat, and a rear grip and a reel seat formed by each of them, which can stabilize the molding quality.

Brief Description of Drawings

[0022] [Figure 1] (a) It is a figure which shows the perspective view of the fishing rod which concerns on one Embodiment of this invention. (b) It is a figure which shows the front view of the fishing rod which concerns on one Embodiment of this invention. [Figure 2] (a) It is a figure which shows the perspective view of the base material 10a for a rear grip which concerns on one Embodiment of this invention. (b) It is a figure which shows the front view of the base material 10a for a rear grip which concerns on one Embodiment of this invention. [Figure 3] (a) is a cross-sectional view of the base material 10a for a rear grip according to an embodiment of the present invention. (b) is a cross-sectional view of the layer structure of the base material 10a for a rear grip according to an embodiment of the present invention. [Figure 4] It is a figure explaining the formation method of the layer structure of the fitting and adhering part 3 of the base material 10a for a rear grip which concerns on one Embodiment of this invention. [Figure 5] It is a figure explaining the diameter expansion of the fiber of the reinforcing fiber resin of the inner diameter adjustment layer 5 of the base material 10a for a rear grip which concerns on one Embodiment of this invention. [Figure 6] It shows a part of the cross-sectional view of the base material 10a for a rear grip which concerns on one Embodiment of this invention. [Figure 7] (a) It is a figure which shows the perspective view of the base material 9a for a reel seat which concerns on one Embodiment of this invention. (b) It is a figure which shows the front view of the base material 9a for a reel seat which concerns on one Embodiment of this invention.

Modes for Carrying Out the Invention

[0023] The embodiments of the fishing rod according to the present invention will be described in detail below with reference to the attached drawings. Components common to multiple drawings are given the same reference numerals throughout the drawings. Please note that, for the sake of clarity, each drawing is not necessarily drawn to an exact scale.

[0024] Figure 1 shows one embodiment of a fishing rod according to the present invention, where Figure 1(a) is a perspective view of a fishing rod according to one embodiment of the present invention, and Figure 1(b) is a front view of a fishing rod according to one embodiment of the present invention. As shown in the figure, the fishing rod 1 according to one embodiment of the present invention comprises a rod body 2, a reel (not shown) attached to the rod body 2 via a reel seat 9, a fishing line guide (not shown) attached to the rod body 2, and a rear grip 10 formed at the rear end of the rod body. In the illustrated embodiment, the reel seat 9, the rear grip 10, and the fishing line guide (not shown) each correspond to mounting parts attached to the outer circumferential surface of the rod body.

[0025] Although not shown in the diagram, the rod body 2 is constructed by connecting, for example, a butt section, a middle section, and a tip section. Each of these rod body sections is joined together, for example, in a parallel joint. The butt section, middle section, and tip section can be joined together by a telescopic joint, a reverse parallel joint, a spigot joint, or any other known jointing method. The rod body 2 may also consist of a single rod body.

[0026] The butt section, middle section, and tip section are, for example, made of a tubular body made of fiber-reinforced resin. This fiber-reinforced resin tubular body is made by winding a fiber-reinforced resin prepreg (prepreg sheet), which is made by impregnating reinforcing fibers with a matrix resin, around a core metal, and then heating and hardening the prepreg sheet. As the reinforcing fibers contained in this prepreg sheet, for example, carbon fibers, glass fibers, and any other known reinforcing fibers can be used. As the matrix resin contained in the prepreg sheet, a thermosetting resin such as epoxy resin can be used. After the prepreg sheet has hardened, the core metal is removed. The outer surface of the tubular body is also polished as appropriate. Each rod section may be constructed in a solid shape. Similarly, although not shown, the butt section, middle section, and tip section are provided with multiple fishing line guides for guiding the fishing line unwound from a reel (not shown) attached to the reel seat 9.

[0027] Next, with reference to Figures 2, 3, and 4, a rear grip substrate 10a according to one embodiment of the present invention will be described. Figure 2 shows a rear grip substrate according to one embodiment of the present invention. 10a Figure 2(a) shows a perspective view of the rear grip substrate 10a according to one embodiment of the present invention, and Figure 2(b) shows a front view of the rear grip substrate 10a according to one embodiment of the present invention. Figure 3 explains the internal structure of the rear grip substrate 10a according to one embodiment of the present invention, with Figure 3(a) showing a cross-sectional view of the rear grip substrate 10a according to one embodiment of the present invention, and Figure 3(b) showing a cross-sectional view of the layer structure of the rear grip substrate 10a according to one embodiment of the present invention. Figure 4 is a diagram illustrating the method for forming the layer structure of the fitting adhesive portion 3 of the rear grip substrate 10a according to one embodiment of the present invention.

[0028] As shown in Figures 2 and 3, the base material 10a for a rear grip according to one embodiment of the present invention comprises a main body portion 8 and a cylindrical fitting adhesive portion 3 formed at one or both ends (as shown in Figure 3) of the main body portion 8, to which the rod body 2 is fitted and bonded, and is a base material 10a for a rear grip for a fishing rod 1 for forming the rear grip 10 of the fishing rod 1 by internal pressure molding, wherein the fitting adhesive portion 3 has an innermost layer 4, an inner diameter adjustment layer 5, a main body layer 6, and an outermost layer 7, and each layer is a reinforced fiber resin layer.

[0029] According to the rear grip substrate 10a of one embodiment of the present invention, by providing an inner diameter adjustment layer 5 and using a substrate in which the fibers of the inner diameter adjustment layer 5 in the circumferential direction easily expand (stretch) radially outward during internal pressure molding, it is possible to provide a rear grip substrate that can accommodate various dimensions of the rod body of the fishing rod to be fitted and bonded, while minimizing the number of layers during internal pressure molding, and stabilizing the molding quality.

[0030] Next, with reference to Figure 4, the layer structure of the fitting adhesive portion 3 of the rear grip base material 10a according to one embodiment of the present invention will be described. As shown in Figure 4, in the rear grip base material 10a according to one embodiment of the present invention, the innermost layer 4, the main body layer 6, and the outermost layer 7 are each formed by two or more reinforcing fiber prepreg sheets, each forming a layer that covers one circumference, when viewed in the circumferential direction of the rear grip base material 10a. As a result, even if the pattern is arranged in an arbitrary fiber direction and laminated, the pattern is easily expanded in the circumferential direction due to internal pressure, making it possible to freely change the rigidity and strength.

[0031] Furthermore, as shown in Figure 4, in the rear grip base material 10a according to one embodiment of the present invention, the inner diameter adjustment layer 5 is formed using one or more reinforcing fiber prepreg sheets that are formed to encircle the rear grip base material 10a at least once when viewed in the circumferential direction. This makes it possible to form a layer of any thickness without using multiple patterns, which not only saves the effort of pattern lamination work but also ensures uniform physical properties because there is no partial overlap between patterns during winding.

[0032] In the rear grip substrate 10a according to one embodiment of the present invention, the fibers of the reinforcing fiber resin of the inner diameter adjustment layer 5 are oriented to be inclined at a range of 20 to 70 degrees with respect to the circumferential direction of the rear grip substrate 10a. As shown in Figure 5, by orienting the fibers obliquely with respect to the expanding diameter direction, it is possible to obtain sufficient molding pressure to press against the outer mold during internal pressure molding. In this way, the rear grip substrate 10a according to one embodiment of the present invention provides a rear grip substrate that can accommodate various dimensions of the rod body of the fishing rod to be fitted and bonded, while minimizing the number of layers during internal pressure molding, by providing an inner diameter adjustment layer 5 and using a substrate in which the fibers of the inner diameter adjustment layer 5 in the circumferential direction easily expand (stretch) radially outward during internal pressure molding.

[0033] In a rear grip base material 10a according to one embodiment of the present invention, the inner diameter adjustment layer 5 is formed by multiple layers of a single plain weave or twill weave fabric when viewed in the circumferential direction of the rear grip base material 10a, and the fibers of the single plain weave or twill weave fabric are wound so that they are obliquely oriented in the range of 20 to 70 degrees with respect to the circumferential direction of the rear grip base material. As shown in Figure 5, by oriented the fibers obliquely with respect to the diameter expansion direction, it is possible to obtain sufficient molding pressure to press against the outer mold during internal pressure molding. Furthermore, since it is possible to form a layer of any thickness without using multiple patterns, not only is the effort required for pattern lamination work reduced, but uniform physical properties can be ensured because there is no partial overlap between patterns during winding. In this way, according to the rear grip substrate 10a of one embodiment of the present invention, by providing an inner diameter adjustment layer 5 and using a substrate in which the fibers of the inner diameter adjustment layer 5 in the circumferential direction easily expand (stretch) radially outward during internal pressure molding, it is possible to provide a rear grip substrate that can accommodate various dimensions of the rod body of the fishing rod to be fitted and bonded, while minimizing the number of layers during internal pressure molding, and stabilizing the molding quality.

[0034] As shown in Figure 6, in a rear grip substrate 10a according to one embodiment of the present invention, a portion of the innermost layer 4 is formed to overlap with the inner diameter adjustment layer 5 in the axial direction of the rear grip substrate 10a. In this way, the end of the inner diameter adjustment layer is covered with a continuous substrate, which reduces the stacking step, reduces the tension of the internal pressure tube during internal pressure molding, and allows sufficient molding pressure to be applied to the substrate, making it easier to obtain a molded layer of stable quality.

[0035] Furthermore, as shown in Figure 6, in the rear grip base material 10a according to one embodiment of the present invention, a part of the innermost layer 4 is formed on the inner surface of the main body layer. In this way, the end of the inner diameter adjustment layer is covered with a continuous base material, which reduces the stacking step, reduces the tension of the internal pressure tube during internal pressure molding, and allows sufficient molding pressure to be applied to the base material, making it easier to obtain a molded layer of stable quality.

[0036] In a rear grip substrate 10a according to one embodiment of the present invention, the main body portion 8 of the rear grip substrate 10a is formed such that the innermost layer 4, the main body layer 6, and the outermost layer 7 are stretched. In this way, a pattern configuration that easily provides stable quality and allows for obtaining any desired rigidity is possible.

[0037] Next, with reference to Figures 7 and 3, a reel sheet substrate 9a according to one embodiment of the present invention will be described. Figure 7(a) shows a perspective view of the reel sheet substrate 9a according to one embodiment of the present invention, and Figure 7(b) shows a front view of the reel sheet substrate 9a according to one embodiment of the present invention. Figure 3 also shows the reel sheet substrate according to one embodiment of the present invention. 10 This explains the internal structure of a, and Figure 3(a) relates to one embodiment of the present invention. Ri Figure 3(b) shows a cross-sectional view of the base material 10a for the grip, and Figure 3(b) shows a base material for a reel seat according to one embodiment of the present invention. 10 This shows a cross-sectional view of the layer structure of a, but since it is the same as the base material 9a for the reel sheet according to one embodiment of the present invention, please also refer to Figure 3.

[0038] A reel seat base material 9a according to one embodiment of the present invention comprises a main body portion 8 and a cylindrical fitting and bonding portion 3 formed at one or both ends of the main body portion 8 (as shown in Figures 7 and 3) to which the rod body 2 is fitted and bonded, and is a reel seat base material 9a for forming a reel seat 9 of a fishing rod 1 by internal pressure molding, wherein the fitting and bonding portion 3 has an innermost layer 4, an inner diameter adjustment layer 5, a main body layer 6, and an outermost layer 7, and each layer is a layer of reinforced fiber resin. In this way, according to the reel seat base material 9a according to one embodiment of the present invention, by providing an inner diameter adjustment layer 5 and using a base material in which the fibers of the inner diameter adjustment layer 5 in the circumferential direction easily spread (stretch) radially outward during internal pressure molding, it is possible to provide a reel seat base material that can accommodate various dimensions of the rod body of the fishing rod to be fitted and bonded while minimizing the number of layers during internal pressure molding, and stabilizing the molding quality.

[0039] Hereinafter, it should be added that each embodiment of the rear grip substrate 10a according to the present embodiment described above is also applicable to the reel seat substrate 9a according to the present embodiment.

[0040] The rear grip 10 according to one embodiment of the present invention is formed by internal pressure molding using the rear grip base material 10a according to the above-described embodiment of the present invention. In this way, the rear grip 10 according to one embodiment of the present invention provides an inner diameter adjustment layer 5, and by using a base material in which the fibers of the inner diameter adjustment layer 5 in the circumferential direction easily expand (stretch) radially outward during internal pressure molding, it is possible to provide a rear grip 10 that can accommodate various dimensions of the rod body of the fishing rod to be fitted and bonded, while minimizing the number of layers during internal pressure molding, and stabilizing the molding quality.

[0041] The reel seat 9 according to one embodiment of the present invention is formed by internal pressure molding using the reel seat base material 9a according to the above-described embodiment of the present invention. In this way, the reel seat 9 according to one embodiment of the present invention is provided with an inner diameter adjustment layer 5, and by using a base material in which the fibers of the inner diameter adjustment layer 5 in the circumferential direction easily expand (stretch) radially outward during internal pressure molding, it is possible to provide a reel seat 9 that can accommodate various dimensions of the rod body of the fishing rod to be fitted and bonded, while minimizing the number of layers during internal pressure molding, and stabilizing the molding quality.

[0042] Next, a method for molding a reel seat 9 and a rear grip 10 according to one embodiment of the present invention will be described. In the method for molding a reel seat 9 and a rear grip 10 according to one embodiment of the present invention, for example, a thermosetting prepreg is laminated around a material that can be subjected to internal pressure, such as a tube (preform), the preform is placed in a mold of a specific shape, and after clamping the mold with a press machine, internal pressure is applied by air, liquid, or thermally expanding powder while heating to form the shape. After molding, the material used in the internal pressure process is removed, and a hollow rear grip 10 or reel seat 9 is completed.

[0043] Furthermore, the molding method for the reel seat 9 and the rear grip 10 according to the present embodiment described above can also be applied to other grips, etc., and will produce the technical effects described above.

[0044] The dimensions, materials, and arrangements of each component described herein are not limited to those explicitly described in the embodiments, and each component can be modified to have any dimensions, materials, and arrangements that fall within the scope of the present invention. Furthermore, components not explicitly described herein may be added to the described embodiments, and some of the components described in each embodiment may be omitted. [Explanation of Symbols]

[0045] 1 fishing rod 2 Rod Body 3. Fitting and bonding section 4. Innermost layer 5 Inner diameter adjustment layer 6. Main body layer 7 Outermost layer 8 Main body 9 Reel Seats 9a Base material for reel seat 10 Rear Grip 10a Base material for rear grip

Claims

1. A base material for a rear grip of a fishing rod, comprising a main body and a cylindrical fitting and bonding portion formed at one or both ends of the main body, to which the rod body is fitted and bonded, wherein the fitting and bonding portion comprises an innermost layer, an inner diameter adjustment layer, a main body layer, and an outermost layer, and each layer is a layer of reinforced fiber resin.

2. The rear grip substrate according to claim 1, wherein the innermost layer, the main body layer, and the outermost layer are each formed by two or more reinforcing fiber prepreg sheets forming one layer around the circumference when viewed in the circumferential direction.

3. The rear grip substrate according to claim 1, wherein the inner diameter adjustment layer is formed using one or more reinforcing fiber prepreg sheets that are formed to extend at least once around the circumference when viewed in the circumferential direction.

4. The rear grip substrate according to claim 3, wherein the fibers of the reinforcing fiber resin of the inner diameter adjustment layer are oriented to be inclined at a range of 20 to 70 degrees with respect to the circumferential direction of the rear grip substrate.

5. The rear grip base material according to claim 1, wherein the inner diameter adjustment layer is formed by multiple layers of a single plain weave or twill weave fabric when viewed in the circumferential direction, and the fibers of the single plain weave or twill weave fabric are wound so as to be oblique to the circumferential direction of the rear grip base material in the range of 20 to 70 degrees.

6. The rear grip substrate according to claim 1, wherein a portion of the innermost layer is formed to overlap with the inner diameter adjustment layer in the axial direction of the rear grip substrate.

7. A portion of the innermost layer is formed on the inner surface of the main body layer, as described in claim 1, for a rear grip base material.

8. The rear grip substrate according to claim 1, wherein the main body portion of the rear grip substrate is formed such that the innermost layer, the main body layer, and the outermost layer are stretched.

9. A reel seat base material for forming a fishing rod reel seat by internal pressure molding, comprising a main body and a cylindrical fitting and bonding portion formed at one or both ends of the main body, to which a rod body is fitted and bonded, wherein the fitting and bonding portion has an innermost layer, an inner diameter adjustment layer, a main body layer, and an outermost layer, and each layer is a layer of reinforced fiber resin.

10. A method for forming a rear grip for a fishing rod by internal pressure molding using a base material for a rear grip according to any one of claims 1 to 8.

11. A method for forming a reel seat for a fishing rod by internal pressure molding using a reel seat base material as described in claim 9.

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