Fishing rod reel seat, fishing rod and nut

Abstract

To provide a reel seat for fishing rod which has a nut for surely fixing an outside cylindrical part and an inside cylindrical part while achieving smooth rotation and improving decorativeness.SOLUTION: A nut is a nut for screwing to a male screw part of a reel seat main body on which a reel leg mounting part is formed for mounting a reel leg, and for moving a movable hood. The nut has; a nut base part 15 which has a female screw part for movement for screwing to the male screw part of the reel seat main body, on an inner peripheral face, and has an end part engaged to the movable hood; an inside cylindrical part 16 which has a salient part or a recess part and is fixed to an outside of the nut base part 15; and an outside cylindrical part 17 which has a recess part or a salient part engaged to the salient part or the recess part, is fixed to an outside of the inner cylindrical part 16 and whose outer peripheral surface is at least a part of an outer peripheral surface of the nut. The outside cylindrical part has an open hole penetrating in inner / outer directions, and in view from an axial direction of the outside cylindrical part, at least a part of the open hole and at least a part of the salient part or the recess part are overlapped each other.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a nut, a fishing rod reel seat including the nut, and a fishing rod including the fishing rod reel seat. [Background technology]

[0002] Conventionally, various devices for fixing a fishing rod mounting leg of a fishing reel to a fishing rod are known. For example, a reel fixing device disclosed in Patent Document 1 includes a reel seat body having a mounting portion on which the fishing rod mounting leg of the fishing reel is placed. A fixed hood is provided at one end of the reel seat body to fix one end of the fishing rod mounting leg. A movable hood is attached to the other end of the reel seat body so as to be movable opposite the fixed hood.

[0003] The movable hood is configured with an insertion section into which the other end of the fishing rod mounting leg is inserted, and an operation knob rotatably attached to the insertion section. The operation knob is configured with a cylindrical base section that screws into a threaded section formed on the other end of the reel seat body, and a decorative cover member that is attached to the outer circumferential surface of the base. The cover member is fixed to the base using an adhesive. The adhesive is applied to both the outer circumferential surface of the base and the inner circumferential surface of the cover member.

[0004] Patent Document 2 discloses a nut for a reel seat for a fishing rod, which is screwed into the male thread of the reel seat body to move a movable hood, and includes an inner cylinder having a female thread for movement on its inner surface that screws into the male thread of the reel seat body, and an outer cylinder fixed to the outside of the inner cylinder, the outer cylinder having an outer circumferential surface that forms at least a part of the outer circumferential surface of the nut, the outer cylinder having a through hole penetrating in the inward and outward directions, and a fixing part for fixing the outer circumferential surface of the inner cylinder to the inner circumferential surface of the outer cylinder at a position farther from the movable hood than the through hole. It also describes that it is preferable that the fixing part has at least one of an adhesive part and a threaded part, and that when the fixing part has an adhesive part, the outer circumferential surface of the inner cylinder and the inner circumferential surface of the outer cylinder can be easily fixed by adhesion. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2014-161234 A [Patent Document 2] JP 2020-89310 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the reel fixing device disclosed in Patent Document 1, adhesive is applied to both the outer peripheral surface of the base and the inner peripheral surface of the cover member, so there is a risk that excess adhesive will overflow from the ends of the cover member during assembly, impairing its decorativeness, and when a cover member with a through hole is used to enhance the decorativeness of the movable hood, the overflowing adhesive is likely to get into the through hole. Also, even if a cover member with a through hole is used, there is a problem that the area in which the through hole can be formed is limited in order to bond the inner surface of the cover member to the base.

[0007] Furthermore, while the nut for moving the movable hood disclosed in Patent Document 2 is said to be highly decorative and can rotate smoothly, it has a fixing portion that fixes the outer peripheral surface of the inner cylinder to the inner peripheral surface of the outer cylinder, and the outer peripheral surface of the inner cylinder to the inner peripheral surface of the outer cylinder are fixed by adhesive or a screw structure. Therefore, it is not possible to form a through hole in the area of ​​the fixing portion, and the area in which a through hole can be formed is limited, so there is still a problem that there is a limit to how much decorativeness can be improved.

[0008] The present invention has been made in consideration of the above circumstances, and its object is to provide a nut that not only enables smooth rotation while reliably fixing an outer cylindrical part and an inner cylindrical part, but also significantly improves decorativeness, a fishing rod reel seat equipped with the nut, and a fishing rod equipped with such a fishing rod reel seat. Other objects of the present invention will become apparent by referring to the entire specification. [Means for solving the problem]

[0009] A nut according to one embodiment of the present invention is a nut for moving a movable hood by screwing into the male threaded portion of a reel seat main body on which a reel leg mounting portion on which a reel leg is placed is formed, and comprises a nut base having a female threaded portion for movement on its inner surface which screws into the male threaded portion of the reel seat main body and is engaged with the movable hood at its end, an inner cylindrical portion having a convex or concave portion and fixed to the outside of the nut base, and an outer cylindrical portion having a concave or convex portion that engages with the convex or concave portion, thereby being fixed to the outside of the inner cylindrical portion and whose outer peripheral surface forms at least a part of the outer peripheral surface of the nut, and the outer cylindrical portion has a through hole penetrating inward and outward directions, and is positioned such that, when viewed in the axial direction of the outer cylindrical portion, at least a part of the through hole overlaps with at least a part of the concave or convex portion.

[0010] In the nut according to one embodiment of the present invention, two or more of the convex portions and two or more of the concave portions are provided.

[0011] In a nut according to one embodiment of the present invention, the inner cylindrical portion is provided with the convex portion, and the outer cylindrical portion is provided with the concave portion.

[0012] In a nut according to an embodiment of the present invention, the convex portion and the concave portion are configured to have a rectangular parallelepiped shape.

[0013] In a nut according to one embodiment of the present invention, the longitudinal length of the convex portion is in the range of 3 mm to 5 mm, the lateral length of the convex portion is in the range of 0.5 mm to 1.5 mm, and the height of the convex portion is in the range of 0.3 mm to 1.0 mm.

[0014] In a nut according to one embodiment of the present invention, the longitudinal length of the concave portion is in the range of 3 mm to 5 mm, the lateral length of the concave portion is in the range of 0.5 mm to 1.5 mm, and the height of the concave portion is in the range of 0.3 mm to 1.0 mm.

[0015] In a nut according to one embodiment of the present invention, the inner tubular portion has a wall portion at either end of its outer peripheral surface in the axial direction, and the outer tubular portion is configured to be fixed to the inner tubular portion by abutting the wall portion.

[0016] In the nut according to one embodiment of the present invention, the convex portion is provided within a range of 5 mm from the end of the inner cylindrical portion or the outer cylindrical portion on the movable hood side.

[0017] In one embodiment of the nut according to the present invention, the area occupied by the through holes is in the range of 50% to 80% of the entire area of ​​the outer peripheral surface of the outer cylindrical portion, which is at least a part of the outer peripheral surface of the nut.

[0018] In a nut according to an embodiment of the present invention, the radial thickness of the outer cylindrical portion is configured to be in the range of 0.3 mm to 1.5 mm.

[0019] In a nut according to an embodiment of the present invention, the diameter of the outer cylindrical portion is configured to be in the range of 10 mm to 30 mm.

[0020] A fishing rod according to one embodiment of the present invention is configured to include a fishing rod reel seat having any one of the nuts described above, and a fishing rod body.

[0021] A reel seat for a fishing rod according to one embodiment of the present invention is a reel seat for a fishing rod, comprising: a reel seat body on which a reel leg placement portion is formed on which a reel leg is placed; a movable hood that is guided by the outer surface of the reel seat body and configured to be movable along the axial direction of the reel seat body; and a nut that is provided on the outer surface of the reel seat body and for moving the movable hood in the axial direction. The reel seat has a female thread portion on its inner surface for movement that screws into the male thread portion of the reel seat body, and is connected to the movable hood at an end. The nut comprises a nut base to be engaged with the nut, an inner cylindrical portion having a convex portion or a concave portion and fixed to the outside of the nut base, and an outer cylindrical portion having a concave portion or a convex portion that engages with the convex portion or the concave portion, thereby being fixed to the outside of the inner cylindrical portion and whose outer peripheral surface forms at least a part of the outer peripheral surface of the nut, the outer cylindrical portion having a through hole penetrating inwardly and outwardly, and being positioned so that, when viewed in the axial direction of the outer cylindrical portion, at least a part of the through hole and at least a part of the concave portion or the convex portion overlap. Effect of the Invention

[0022] According to the above embodiment, it is possible to provide a nut that not only enables smooth rotation while reliably fixing the outer cylindrical portion and the inner cylindrical portion together, but also significantly improves decorativeness, a fishing rod reel seat equipped with the nut, and a fishing rod equipped with such a fishing rod reel seat. [Brief description of the drawings]

[0023] [Figure 1] 1 is a diagram showing a fishing rod according to an embodiment of the present invention; [Diagram 2] 1 is a diagram showing a fishing rod reel seat according to an embodiment of the present invention; [Diagram 3] FIG. 2 is a cross-sectional view of a nut according to an embodiment of the present invention. [Figure 4] 2 is a diagram showing an outer cylindrical portion and an inner cylindrical portion of a nut according to an embodiment of the present invention. FIG. [Diagram 5] FIG. 2 is a view showing an outer tubular portion of a nut according to an embodiment of the present invention. [Figure 6] 4A and 4B are views showing an inner cylindrical portion of a nut according to an embodiment of the present invention. [Figure 7] FIG. 13 is a view showing an outer cylindrical portion of a nut according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] Hereinafter, an embodiment of a fishing rod according to the present invention will be described in detail with reference to the accompanying drawings. Components common to multiple drawings are designated by the same reference numerals throughout the multiple drawings. Please note that the drawings are not necessarily drawn to scale for the sake of convenience.

[0025] 1 is a diagram showing one embodiment of a fishing rod according to the present invention. As shown in the figure, a fishing rod 1 according to one embodiment of the present invention comprises a rod body 2, a reel 6 attached to the rod body 2 via a reel seat 9, and a fishing line guide 10 attached to the rod body 2. In the illustrated embodiment, each of the reel seat 9 and the fishing line guide 10 corresponds to an attachment part attached to the outer circumferential surface of the rod body.

[0026] The rod body 2 is formed by connecting, for example, a butt rod 3, a middle rod 5, and a tip rod 7. These rod bodies are joined, for example, in a parallel joint. The butt rod 3, middle rod 5, and tip rod 7 can be joined by a telescoping type, a reverse parallel joint type, a spigot joint type, or any other known joint type. The rod body 2 may be formed from a single rod body.

[0027] The base rod 3, the middle rod 5, and the tip rod 7 are each formed of, for example, a tubular body made of fiber-reinforced resin. This tubular body made of fiber-reinforced resin is produced by winding a fiber-reinforced resin prepreg (prepreg sheet) in which reinforcing fibers are impregnated with a matrix resin around a core bar, and heating and curing the prepreg sheet. As the reinforcing fibers contained in the prepreg sheet, for example, carbon fiber, glass fiber, and any other known reinforcing fibers can be used. As the matrix resin contained in the prepreg sheet, a thermosetting resin such as an epoxy resin can be used. After the prepreg sheet is cured, the core bar is de-cored. In addition, the outer surface of the tubular body is appropriately polished. Each rod body may be formed in a solid shape.

[0028] In the illustrated embodiment, the butt rod 3, middle rod 5 and tip rod 7 are provided with a number of line guides 10 (line guides 10A-10D) that guide the fishing line that is let out from the reel 6 attached to the reel seat 9. More specifically, the butt rod 3 is provided with line guide 10A, the middle rod 5 is provided with line guide 10B, and the tip rod 7 is provided with line guide 10C. A top guide 10D is provided at the tip of the tip rod 7, but details will be omitted.

[0029] Next, the reel seat 9 including the reel seat body 12 and the nut 8 will be described with reference to FIG. 9 The reel seat body 12 has a reel leg mounting surface (reel leg mounting portion) 12a on which the reel leg 6a of the fishing reel 6 is mounted along its axial direction. The reel seat body 12 is formed into a cylindrical shape as a whole. The reel seat body 12 is made of an appropriate material such as synthetic resin (e.g., polyamide synthetic fiber, ABS resin, etc.) or metal (e.g., SUS, aluminum, titanium, brass, etc.). The reel seat body 12 can be configured to have a length of, for example, 60 to 160 mm, but is not limited thereto.

[0030] In addition, the reel seat body 12 is formed with a grip portion 12b having a curved outer surface that is slightly bulged on the side opposite the reel leg mounting surface 12a, making it easy to grip when gripped with the hand by supporting the ball of the foot or the area near it.

[0031] The reel leg mounting surface 12a of the reel seat body 12 can be formed flat or approximately flat with a larger curvature than other circumferential portions (e.g., grip portion 12b) adjacent to the reel leg mounting surface 12a of the reel seat body 12, and is formed to extend in the axial direction of the reel seat body 12 shown in Fig. 2. A fixed hood 14 is integrally disposed at one end (rod base side) of the reel seat body 12. One end of the reel leg mounting surface 12a of the reel seat body 12 is disposed inside the fixed hood 14.

[0032] The reel seat body 12 is integrally provided with a cylindrical body with a guide groove formed at the other end (rod butt side) and a screw part (male screw part) 18. The cylindrical body has a cylindrical part mounting surface 16a formed continuously with the reel leg mounting surface 12a of the reel seat body 12 or with a slight step. In one embodiment of the present invention, a step is formed between the reel leg mounting surface (reel leg mounting part) 12a and the cylindrical part mounting surface 16a to accommodate the back surface holding part of the reel leg holding part 28 described later on which the back surface (bottom surface) 6b of the reel leg 6a is placed and the reel leg mounting surface 12a, so that the surface is as flush as possible. The cylindrical part mounting surface 16a is also formed continuously with the screw part (male screw part) 18. At the other end (rod butt side), a movable hood 22 is attached so as to be freely movable in the axial direction to the outside of the cylindrical body and the threaded portion 18. Here, the reel seat main body 12 and the movable hood 22, or the reel seat main body 12, the movable hood 22 and a nut 8 described later, may be collectively referred to as the reel seat 9, but details will be omitted.

[0033] 2, the fixed hood 14 of the reel seat main body 12 has an opening 14a that receives one end of the reel leg 6a and opens toward the movable hood 22. The opening 14a of the fixed hood 14 is formed so that the height of the inner surface gradually decreases toward the front of the reel seat main body 12. When one end of the reel leg 6a is received in this opening 14a and pressed by the opening 14a, the reel leg 6a is urged (pressed) toward the reel leg mounting surface 12a disposed within the fixed hood 14.

[0034] The fixed hood 14 is not limited to being disposed integrally with the reel seat body 12, but may be formed as a separate structure from the reel seat body 12 using metal or hard synthetic resin and firmly fixed to the reel seat body 12. If formed from metal, it is preferable to place a resin member at the portion that comes into contact with the reel leg 6a of the reel 6 to prevent damage to each member due to contact between metals.

[0035] The movable hood 22 is formed in the shape of a sleeve having an axial hole through which the screw portion (male screw portion) 18 of the reel seat body 12 is inserted, and has a hood body 26 and a reel leg holding portion 28 fixed to the inside of the hood body 26. A nut 8 according to one embodiment of the present invention is rotatably connected to the rear portion (rod butt side) of the hood body 26 of the movable hood 22. The nut 8 is made of, for example, synthetic resin, metal, polyamide synthetic fiber, ABS resin, aluminum, brass, etc., the hood body 26 is made of, for example, metal (SUS, brass), etc., and the reel leg holding portion 28 is made of, for example, polyamide synthetic fiber, etc.

[0036] The nut 8 has a female screw portion 24 formed on the inner periphery to be screwed into the screw portion (male screw portion) 18, and the outer periphery is formed to be non-slip and easy to rotate. The front end of the nut 8 is connected (locked) to the rear end of the hood body 26 in a state in which it can rotate relatively freely and is prevented from coming off. More specifically, the nut 8 has a locking portion 25 (see FIG. 3 described later) and is locked to a locked portion 23 (see FIG. 3 described later) at the rear end of the hood body 26, so that it can be configured to be prevented from coming off while allowing free relative rotation. Note that various connection structures are conceivable between the nut 8 and the hood body 26, and the connection structure is not limited to a specific embodiment.

[0037] The nut 8 is screwed into the threaded portion (male threaded portion) 18 of the reel seat body 12 and is arranged to be rotatable. As described above, since the hood body 26 is connected to the nut 8, when the nut 8 is rotated in the forward direction relative to the threaded portion (male threaded portion) 18, the nut 8 approaches the fixed hood 14 and the hood body 26 of the moving hood 22 approaches the fixed hood 14. On the other hand, when the nut 8 is rotated in the reverse direction relative to the threaded portion (male threaded portion) 18, the nut 8 moves away from the fixed hood 14 and the hood body 26 of the moving hood 22 moves away from the fixed hood 14.

[0038] The hood body 26, which is moved in the axial direction of the reel seat body 12 by the rotation of the nut 8, has an opening 26a that opens to the front and inner peripheral sides and is fixed in a state in which a reel leg holding portion 28 that receives the rear end of the reel leg 6a of the fishing reel 6 is disposed. The opening 26a of the hood body 26 faces the opening 14a of the fixed hood 14 when the movable hood 22 is attached to the threaded portion (male threaded portion) 18 of the reel seat body 12. The opening 26a of the hood body 26 is formed so that the height of the inner surface gradually decreases toward the rear, opposite to the opening 14a of the fixed hood 14.

[0039] Next, details of the nut 8 according to an embodiment of the present invention will be further described with reference to Figures 2, 3, 4, 5 and 6. Figure 3 shows a cross-sectional view passing through the central axis of the nut 8 and the moving hood 22 according to an embodiment of the present invention. Figure 4 shows a part of an exploded view of the nut 8 according to an embodiment of the present invention. Figures 5 and 6 show front and top views, respectively, of each component of the nut 8 according to an embodiment of the present invention.

[0040] The nut 8 according to one embodiment of the present invention is a nut 8 for screwing into the male threaded portion 18 of the reel seat body 12, which is formed with the reel leg mounting portion 12a on which the reel leg 6a is mounted, and for moving the moving hood 22. The nut 8 has, on its inner circumferential surface, a female threaded portion 24 for movement that screws into the male threaded portion 18 of the reel seat body 12, a nut base 15 that is engaged with the moving hood 22 at its end, an inner cylindrical portion 16 that has a convex portion (not shown) or a concave portion 19 and is fixed to the outside of the nut base 15, and a female threaded portion 24 that is fixed to the male threaded portion 18 of the reel seat body 12. and an outer cylindrical part 17 having a concave part (not shown) or a convex part 20 that engages with a portion (not shown) or the concave part 19, thereby being fixed to the outside of the inner cylindrical part 16 and whose outer peripheral surface forms at least a part of the outer peripheral surface of the nut. The outer cylindrical part 17 has a through hole 21 penetrating in the inward and outward direction, and is provided at a position where at least a part of the through hole 21 overlaps with at least a part of the concave part (not shown) or the convex part 20 when viewed in the axial direction (X) of the outer cylindrical part 17. Note that either a convex part or a concave part may be provided on the inner cylindrical part 16, and either a concave part or a convex part may be provided on the outer cylindrical part 17 so as to engage with either of them. Also, various shapes, structures, dimensions, and numbers of the through hole 21 may be considered, and although details are omitted, an outer cylindrical part 17 having a through hole 21 formed therein as shown in FIG. 7 may be used as another embodiment. Note that the illustrated example is merely illustrative and is not intended to be limited to a specific embodiment.

[0041] 5(a), the through hole 21 is provided at a position where the region where the through hole 21 extends in the axial direction and the region where the convex portion 20 is formed overlap in the axial direction. In other words, in this specification, when the positions in the axial direction are the same, and the convex portion 20 and the through hole 21 are provided at different circumferential positions in the circumferential direction of the outer cylindrical portion 17, they are defined as being at "overlapping positions in the axial direction" when they are at the same position in the axial direction but are at the same or overlapping positions in the axial direction even if the circumferential positions are different.

[0042] According to the nut of the embodiment of the present invention, it is possible to provide a nut that can not only enable smooth rotation while reliably fixing the outer cylindrical part and the inner cylindrical part, but also significantly improve the decorativeness. More specifically, in the conventional method, in order to fix the outer cylindrical part and the inner cylindrical part, it is necessary to provide a region for fixing over a predetermined axial length for gluing or screwing, and this region has a problem that it is not possible to form a through hole or the like for decoration over almost the entire circumferential direction (decorativeness has to be sacrificed). In contrast, according to the nut of the embodiment of the present invention, it is possible to provide the through hole 21 formed in the outer cylindrical part 17 at a position where it overlaps with the convex part 20 or at least a part of it overlaps with the convex part 20, so that the through hole 21 for improving decorativeness can be provided in a wider area than before, and it is possible to significantly improve decorativeness while reliably fixing the outer cylindrical part and the inner cylindrical part.

[0043] In the nut 8 according to one embodiment of the present invention, two or more convex portions and two or more concave portions are provided (in the example of FIG. 5, two convex portions 20 are provided on the outer cylindrical portion 17, and in the example of FIG. 6, two concave portions 19 are provided on the inner cylindrical portion 16). As shown in FIG. 5, these two convex portions 20 are provided so as to be spaced apart by an interval of approximately 180 degrees in the circumferential direction, but this is not limited to the positions, and they may be spaced apart by an angle larger or smaller than this. Furthermore, when three convex portions 20 are provided, the interval between adjacent convex portions can be approximately 120 degrees in the circumferential direction, but is not limited to this. Concave portions19 The same as above can be said about the convex portion. 20 and concave portion 19 The number and positions (circumferential positions and axial positions) of the grooves 14 and 15 may vary widely and are not intended to be limited to a specific embodiment. This allows the inner and outer cylindrical parts to be securely locked.

[0044] As described above, the nut 8 according to one embodiment of the present invention may be configured so that the inner cylindrical portion 16 is provided with a convex portion and the outer cylindrical portion 17 is provided with a concave portion.

[0045] In the nut 8 according to one embodiment of the present invention, the shape of the convex portion 20 and the shape occupied by the space of the concave portion 20 are configured to have, for example, a rectangular parallelepiped shape. In the case of a rectangular parallelepiped shape, the end, end face, or corner may be rounded or formed in an R shape due to practical processing constraints (for example, constraints due to end mill processing), and it should be noted that it is not necessarily mathematically strict. For example, even if the convex portion 20 is a rectangular parallelepiped shape, the corners of the end face protruding in the radial direction of the nut 8 may be rounded, or the outer end of the side surface in the radial direction of the nut 8 may be formed in an R shape. The upper surface and side surface of the rectangular parallelepiped shape may be formed to be curved convexly or concavely. In addition, the convex portion 20 does not have to be a rectangular parallelepiped shape, and may be, for example, a trapezoid or inverted trapezoid shape when viewed in a cross section in the radial direction of the nut 8, and the corners may be appropriately rounded or formed in an R shape. In addition, the shape may be other than a cube, etc., but various other shapes and structures are possible, and the examples shown in the figures are merely illustrative and are not intended to be limited to a specific form.

[0046] In the nut 8 according to one embodiment of the present invention, when the nut 8 is a cube (e.g., a rectangular parallelepiped), the length of the convex portion 20 in the longitudinal direction is in the range of 3 mm to 5 mm, the length of the convex portion 20 in the lateral direction is in the range of 0.5 mm to 1.5 mm, and the height of the convex portion 20 is in the range of 0.3 mm to 1.0 mm. The dimensions of the convex portion 20 may vary widely, and the illustrated example is merely illustrative and is not intended to be limited to a specific embodiment. This allows the inner and outer cylindrical portions to be securely locked.

[0047] In the nut 8 according to one embodiment of the present invention, when the nut 8 is a cube (e.g., a rectangular parallelepiped), the length of the concave portion 19 in the longitudinal direction is in the range of 3 mm to 5 mm, the length of the concave portion 19 in the lateral direction is in the range of 0.5 mm to 1.5 mm, and the height of the concave portion 19 is in the range of 0.3 mm to 1.0 mm. The dimensions of the concave portion 19 may vary widely, and the illustrated example is merely illustrative and is not intended to be limited to a specific embodiment. This allows the inner and outer cylindrical portions to be securely locked.

[0048] In the nut 8 according to one embodiment of the present invention, the inner cylindrical portion 16 has a wall portion 27 at either end of the outer circumferential surface in the axial direction (the end opposite to the movable hood 22), and the outer cylindrical portion 17 is fixed to the inner cylindrical portion 16 so as to abut against the wall portion 27 (see FIG. 3). In addition, in the nut 8 according to one embodiment of the present invention, the nut base 15 has a step portion 29, and the inner cylindrical portion 16 and the outer cylindrical portion 17 are fixed to the nut base 15 so as to abut against a side wall 30 of the step portion 29 (see FIG. 3). In this way, the inner and outer cylindrical portions can be securely locked.

[0049] Furthermore, as shown in FIG. 5(a), in a nut 8 according to one embodiment of the present invention, the convex portion 20 can be provided within a range X from the end of the inner cylindrical portion 16 or the outer cylindrical portion 17 on the movable hood 22 side (the left end in the left-right direction of the paper surface of FIG. 5(a)). The range can be, for example, an area up to 5 mm from the end. More preferably, the range can be an area up to 3 mm from the end. In this way, the inner and outer cylindrical portions can be securely locked.

[0050] In the nut 8 according to one embodiment of the present invention, the surface area of ​​the region occupied by the through holes 21 in the entire surface area of ​​the outer peripheral surface of the outer cylindrical portion 17 (the surface area of ​​the outer peripheral surface when there are no through holes) is set to be in the range of 50% to 80% of the entire surface area of ​​the outer peripheral surface of the outer cylindrical portion 17 that is at least a part of the outer peripheral surface of the nut 8 (the surface area of ​​the outer peripheral surface when there are no through holes). In this way, the inner and outer cylindrical portions can be securely locked.

[0051] In the nut 8 according to one embodiment of the present invention, the radial thickness of the outer cylindrical portion 17 is configured to be in the range of 0.3 mm to 1.5 mm. Also, in the nut 8 according to one embodiment of the present invention, the diameter of the outer cylindrical portion 17 is configured to be in the range of 10 mm to 30 mm.

[0052] A fishing rod 1 according to one embodiment of the present invention is configured to include a fishing rod reel seat 9 having any of the above-mentioned nuts 8, and a fishing rod body 2. In this way, it is possible to provide a fishing rod equipped with a fishing rod reel seat having a nut that not only enables smooth rotation while reliably fixing the outer cylindrical part and the inner cylindrical part, but also greatly improves decorativeness.

[0053] 2, 3 and 4, a fishing rod reel seat 9 according to one embodiment of the present invention is a reel seat 9 for a fishing rod, comprising a reel seat body 12 having a reel leg placement portion 12a on which a reel leg 6a is placed, a movable hood 22 that is guided by the outer surface of the reel seat body 12 and configured to be movable along the axial direction of the reel seat body 12, and a nut 8 that is provided on the outer surface of the reel seat body 12 and for moving the movable hood 22 in the axial direction. For The nut 8 comprises a nut base 15 having a female thread portion 24 on its inner surface and an end portion engaged with the movable hood 22, an inner cylindrical portion 16 having a convex portion (not shown) or a concave portion 19 and fixed to the outside of the nut base 15, and an outer cylindrical portion 17 having a concave portion (not shown) or a convex portion 20 that engages with the convex portion (not shown) or the concave portion 19, thereby being fixed to the outside of the inner cylindrical portion 16 and whose outer peripheral surface forms at least a part of the outer peripheral surface of the nut 8, the outer cylindrical portion 17 having a through hole 21 penetrating inwardly and outwardly, and being positioned so that at least a part of the through hole 21 overlaps with at least a part of the concave portion (not shown) or the convex portion 20 when viewed in the axial direction of the outer cylindrical portion 17.

[0054] According to the fishing rod reel seat of one embodiment of the present invention, it is possible to provide a fishing rod reel seat equipped with a nut that not only ensures secure fixation between the outer cylindrical portion and the inner cylindrical portion while allowing smooth rotation, but also greatly improves decorativeness.

[0055] Next, we will explain the results of a test (torque test) to confirm the adhesive strength (fixing strength) between the outer cylindrical part and the inner cylindrical part when using a nut according to one embodiment of the present invention. In this test, a torque meter having a rod tube holding part was used to fix the rod tube to the holding part, and the torque was measured (using a torque meter) when a force was applied in the rotational direction to the nut screwed into the reel seat body of the reel seat attached to the rod tube, and it was confirmed that there were no problems with the adhesive strength (fixing strength) over a wide range from 5 kgf·cm to 100 kgf·cm.

[0056] As a result, it was found that the outer tubular part and the inner tubular part do not separate and maintain good adhesive strength (fixing strength) regardless of whether a nut having an outer tubular part shown in Fig. 4 or Fig. 7 is used. In this way, it was found that the nut according to one embodiment of the present invention can reliably fix the outer tubular part and the inner tubular part. As a result, the nut according to one embodiment of the present invention not only enables smooth rotation while reliably fixing the outer tubular part and the inner tubular part, but also greatly improves decorativeness.

[0057] 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 can be modified to have any dimensions, materials, and arrangement that can be included in the scope of the present invention. In addition, components not explicitly described in this specification can be added to the described embodiments, and some of the components described in each embodiment can be omitted. [Explanation of symbols]

[0058] 1 fishing rod 2 Rod body 3. Main rod 5 Middle rod 6 Reels 6a Reel leg 7 Tip Rod 8 Nuts 9 Reel seat 10 Fishing Line Guide 12 Reel seat body 12a Reel leg placement surface 14 Fixed Hood 15 Nut base 16 Inner cylindrical part 17 Outer cylindrical part 18 Threaded part (male threaded part) 19 Concave part 20 Convex part 21 Through hole 22 Mobile Food 23 Locked part 24 Female thread 25 Locking part 26 Hood body 27 Wall 28 Reel leg holder 29 Step section 30 side wall

Claims

1. A nut for moving the movable hood, which is screwed into a male thread of a reel seat body having a reel leg mounting portion on which the reel leg is mounted, a nut base having an inner peripheral surface with a female screw portion for movement that screws into the male screw portion of the reel seat body and an end portion of which is engaged with the movable hood; an inner cylindrical portion having a convex portion or a concave portion and fixed to the outside of the nut base; an outer cylindrical portion having a concave portion or a convex portion that engages with the convex portion or the concave portion, thereby being fixed to the outside of the inner cylindrical portion, and the outer circumferential surface of the outer cylindrical portion being at least a part of the outer circumferential surface of the nut; A nut for moving a movable hood, characterized in that the outer cylindrical portion has a through hole extending in an inward and outward direction, and is positioned so that, when viewed in the axial direction of the outer cylindrical portion, at least a portion of the through hole overlaps with at least a portion of the concave portion or the convex portion.

2. The nut according to claim 1 , wherein two or more of the convex portions and two or more of the concave portions are provided.

3. The nut according to claim 1 , wherein the inner cylindrical portion is provided with the convex portion and the outer cylindrical portion is provided with the concave portion.

4. The nut according to claim 1 , wherein the convex portion and the concave portion have a rectangular parallelepiped shape.

5. The nut according to claim 4, wherein the length of the convex portion in the longitudinal direction is in the range of 3 mm to 5 mm, the length of the convex portion in the lateral direction is in the range of 0.5 mm to 1.5 mm, and the height of the convex portion is in the range of 0.3 mm to 1.0 mm.

6. 5. The nut of claim 4, wherein the longitudinal length of the recess is in the range of 3 mm to 5 mm, the lateral length of the recess is in the range of 0.5 mm to 1.5 mm, and the height of the recess is in the range of 0.3 mm to 1.0 mm.

7. 2. The nut according to claim 1, wherein the inner cylindrical portion has a wall portion at either end of its outer circumferential surface in the axial direction, and the outer cylindrical portion is fixed to the inner cylindrical portion so as to abut against the wall portion.

8. The nut according to claim 1 , wherein the convex portion is provided within a range of 5 mm from an end of the inner cylindrical portion or the outer cylindrical portion on the movable hood side.

9. The nut according to claim 1, wherein the area occupied by the through holes is in the range of 50% to 80% of the entire area of ​​the outer peripheral surface of the outer cylindrical portion that is at least a part of the outer peripheral surface of the nut.

10. 2. The nut of claim 1, wherein the radial thickness of the outer tubular portion is in the range of 0.3 mm to 1.5 mm.

11. 2. The nut of claim 1, wherein the diameter of the outer tubular portion is in the range of 10 mm to 30 mm.

12. A fishing rod comprising a fishing rod reel seat having the nut according to any one of claims 1 to 11, and a fishing rod body.

13. A reel seat for a fishing rod, comprising: a reel seat body having a reel leg placement portion on which a reel leg is placed; a movable hood that is guided by an outer surface of the reel seat body and is configured to be movable along an axial direction of the reel seat body; and a nut that is provided on the outer surface of the reel seat body and moves the movable hood in the axial direction, a nut base having an inner peripheral surface with a female screw portion for movement that screws into the male screw portion of the reel seat body and an end portion of which is engaged with the movable hood; an inner cylindrical portion having a convex portion or a concave portion and fixed to the outside of the nut base; an outer cylindrical portion having a concave portion or a convex portion that engages with the convex portion or the concave portion, thereby being fixed to the outside of the inner cylindrical portion, and the outer circumferential surface of the outer cylindrical portion being at least a part of the outer circumferential surface of the nut; The reel seat for a fishing rod is characterized in that the outer cylindrical portion has a through hole penetrating in an inward and outward direction, and is positioned so that at least a portion of the through hole overlaps with at least a portion of the concave portion or the convex portion when viewed in the axial direction of the outer cylindrical portion.

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