fishing rod

Abstract

To provide a fishing rod in which a bonding strength is enhanced and weight saving can be achieved.SOLUTION: A fishing rod R1 includes a rod 2 and a grip body 1 attached to a rear end of the rod 2. The grip body 1 includes: a body part 10 projecting from the rear end of the rod 2; and a first insertion part 11 that is installed so as to extend from the body part 10 to the rod 2 side and is inserted into the inside of the rod 2. An outer peripheral surface of the first insertion part 11 is provided with a first deformation part 11a that is recessed in a direction of separating from an inner peripheral surface of the rod 2.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a fishing rod.

Background Art

[0002] There is known a fishing rod configured by inserting a hollow portion of a grip body into the outer peripheral surface of a rod blank (see, for example, FIG. 3 of Patent Document 1). A conventional fishing rod, for example, bonds and joins the outer peripheral surface of the rod blank and the inner peripheral surface of the grip body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In order to ensure the bonding strength, when the bonding area between the grip body and the rod blank is increased, the grip body becomes larger. In order to reduce the size of the grip body, it is conceivable to attach a grip body having an insertion portion bonded to the inner peripheral surface of the rod blank to the rod blank. However, when bonding the inner surface of the rod blank and the insertion portion of the grip body, it is necessary to lengthen the insertion portion to ensure the bonding strength. Further, when using an adhesive, there is a problem that the adhesive is extruded to the outside when inserting the insertion portion of the rear grip into the inner surface of the rod blank, and it is difficult to apply the adhesive.

[0005] The present invention has been made to solve the above problems, and an object thereof is to provide a fishing rod that can enhance the bonding strength and achieve weight reduction.

Means for Solving the Problems

[0006] The fishing rod according to the present invention comprises a rod shaft and a grip body attached to the rear end of the rod shaft, wherein the grip body comprises a main body portion protruding from the rear end of the rod shaft and a first insertion portion extending from the main body portion toward the rod shaft and inserted into the rod shaft, and the outer circumferential surface of the first insertion portion comprises a first deformed portion that is concave in a direction away from the inner circumferential surface of the rod shaft. The first insertion portion is bonded to the inner circumferential surface of the rod with adhesive, the first insertion portion has a flat milled surface formed on its outer circumferential surface along the axial direction of the rod, and the first deformation portion is formed on the milled surface It is characterized by having this feature.

[0007] According to the present invention, the inner circumferential surface of the rod and the first insertion portion of the grip body are bonded together, and the main body portion of the grip body is exposed to the outside of the rod. This makes it possible to miniaturize the grip body. Furthermore, since a first deformation portion is formed in the first insertion portion, the joint strength can be easily increased by bonding, screwing, engaging, etc., between the rod and the first deformation portion. Furthermore, since the adhesive remains in the first deformed section, the anchoring effect further increases the joint strength between the first insertion section and the rod, and also facilitates the bonding process. In addition, because the adhesive is guided to the milled surface and moves to the first deformed section, it can be introduced without being squeezed out to the outside.

[0012] Furthermore, it is preferable that the first deformed portion is formed on the base end side of the first insertion portion.

[0013] If the first deformation portion is formed on the tip side of the first insertion portion, for example, the adhesive may accumulate on the tip side. However, according to the present invention, the adhesive can be guided to the base end side, and a larger bonding area can be secured.

[0014] Furthermore, the grip body is hollow and is provided with a rod stopper that is inserted into the hollow portion of the grip body, the rod stopper comprising a base portion inserted into the interior of the grip body and a second insertion portion extending from the base portion and inserted into the inner circumferential surface of the first insertion portion, the outer circumferential surface of the second insertion portion preferably comprises a second deformable portion that is concave in a direction away from the inner circumferential surface of the rod and engages with the first deformable portion.

[0015] According to the present invention, by inserting a rod stopper into the grip body and inserting the second insertion portion of the rod stopper into the first insertion portion, the joint strength between the rod and the grip body can be further increased. Furthermore, the engagement of the first and second deformable portions allows the second insertion portion to be easily locked into the first insertion portion. [Effects of the Invention]

[0016] According to the present invention, it is possible to provide a fishing rod that can increase joint strength while also reducing weight. [Brief explanation of the drawing]

[0017] [Figure 1] This is a side view showing a fishing rod according to the first embodiment of the present invention. [Figure 2] This is an exploded side view showing the various components of a fishing rod according to the first embodiment. [Figure 3] This is a perspective view showing the grip body and rod stopper according to the first embodiment. [Figure 4] This is a side cross-sectional view showing the grip body and rod stopper according to the first embodiment. [Figure 5] This is a perspective view showing a rod stopper according to the first embodiment. [Figure 6] This is a side cross-sectional view showing a rod stopper according to the first embodiment. [Figure 7] This figure shows a method for manufacturing a fishing rod according to the first embodiment. [Figure 8] This diagram shows the grip being inserted into the rod. [Figure 9] This is a partial cross-sectional view showing a modified example of the deformed area. [Modes for carrying out the invention]

[0018] <First Embodiment> Hereinafter, referring to the attached drawings, a first embodiment of the fishing rod according to the present invention will be described. In the description of the drawings, the same elements are denoted by the same reference numerals, and duplicate descriptions will be omitted as appropriate. In the following description, "front and rear", "left and right", and "up and down" follow the arrows in FIGS. 1 and 3. This direction is used for convenience of explanation and does not limit the direction of the present invention.

[0019] As shown in FIGS. 1 and 2, the fishing rod R1 includes a grip body 1, a rod shaft 2, a protective ring 20, and a rod plug 30. The rod shaft 2 is a resin or wooden cylindrical member that forms the main body of the fishing rod R1. The rod shaft 2 may be composed of a single piece or may have a joint structure composed of a plurality of pieces.

[0020] As shown in FIG. 2, the grip body 1 of the present embodiment is hollow and includes a main body portion 10, a first insertion portion 11, and a large-diameter portion 12. The grip body 1 can be made of resin or metal, but is not limited thereto.

[0021] As shown in FIGS. 3 and 4, the main body portion 10 has a substantially frustum shape and includes a receiving portion 10a, a first diameter-expanding portion 10b, and a second diameter-expanding portion 10c. The receiving portion 10a projects perpendicularly in the radial direction outside from the base end of the first insertion portion 11.

[0022] The first diameter-expanding portion 10b is a portion that is continuous with the receiving portion 10a and expands in diameter as it moves away from the first insertion portion 11. The first diameter-expanding portion 10b may be a flat surface, but in the present embodiment, it is formed as a curved surface that is slightly concave toward the axis C. The second diameter-expanding portion 10c is a portion that is continuous with the first diameter-expanding portion 10b and expands in diameter as it moves away from the first insertion portion 11. The second diameter-expanding portion 10c may be a flat surface, but in the present embodiment, it is formed as a curved surface that is slightly concave toward the axis C. The inclination angle of the second diameter-expanding portion 10c with respect to the axis C is smaller than the inclination angle of the first diameter-expanding portion 10b with respect to the axis C. The length of the second diameter-expanding portion 10c in the direction of the axis C is longer than the length of the first diameter-expanding portion 10b in the direction of the axis C.

[0023] The second enlarged diameter portion 10c has grip openings 10d that open to the side. The shape and number of grip openings 10d are not particularly limited, but in this embodiment, three openings are formed that are cut out diagonally in the circumferential direction.

[0024] The first insertion portion 11 extends from the main body portion 10 toward the rod 2 and has a cylindrical shape. The first insertion portion 11 is the part that is inserted into the inside of the rod 2 and is formed to be smaller than the inner diameter of the rod 2. There are no particular restrictions on the outer diameter of the first insertion portion 11, but for example it is 1.0 mm to 12.0 mm. In this embodiment, the outer circumferential surface of the first insertion portion 11 and the inner circumferential surface of the rod 2 are bonded together with adhesive. In this embodiment, the first insertion portion 11 is cylindrical, but it may be appropriately modified to match the internal shape of the rod 2.

[0025] As shown in Figure 3, the first insertion portion 11 includes a first deformation portion 11a formed on the outer circumferential surface of the first insertion portion 11, which is concave in the direction away from the inner circumferential surface of the rod 2 (radially inward direction), and a milled surface 14 formed on the outer circumferential surface of the first insertion portion 11 along the axial direction of the rod 2. The first deformation portion 11a is formed on the base end side (main body portion 10 side) of the first insertion portion 11 on the milled surface 14. In this embodiment, the first deformation portion 11a is concave in a circular shape, but it may have other shapes. Also, in this embodiment, one first deformation portion 11a is formed on the base side, but it may be formed on other parts, or it may be formed in multiple locations. The milled surface 14 is a flat surface and is the part that guides the adhesive to the first deformation portion 11a when the first insertion portion 11 is inserted into the rod 2. The milled surface 14 may be formed in multiple locations, or it may be omitted.

[0026] The large-diameter portion 12 extends from the main body portion 10 toward the butt end of the rod and has a cylindrical shape. The large-diameter portion 12 has an opening 13 that opens toward the butt end of the rod. Multiple fine grooves are formed on the outer circumferential surface of the large-diameter portion 12 in the circumferential direction. The grooves may be omitted, but providing them can increase the gripping force. An overhang portion 12a is formed on the inner circumferential surface of the large-diameter portion 12, extending toward the axis C. A protective ring 20 is attached to the periphery of the opening 13. The protective ring 20 has a cylindrical shape and is made of a resin material, a metal material, or a soft material.

[0027] As shown in Figures 5 and 6, the rod stopper 30 is hollow and comprises a second insertion portion 31 and a base portion 32. The second insertion portion 31 extends forward from the base portion 32 and has a cylindrical shape. The second insertion portion 31 is formed to be smaller than the inner diameter of the first insertion portion 11 (see Figure 3). The outer circumferential surface of the second insertion portion 31 is bonded to the inner circumferential surface of the first insertion portion 11 with adhesive. The length of the second insertion portion 31 can be appropriately set according to the adhesive strength, but in this embodiment, it is shorter than the length of the first insertion portion 11.

[0028] A second deformation portion 31a is formed on the outer circumferential surface of the second insertion portion 31, which is concave in the direction away from the inner circumferential surface of the rod 2 (radially inward direction). As shown in Figure 4, the second deformation portion 31a is formed at a position corresponding to the first deformation portion 11a. In other words, when the second insertion portion 31 is inserted into the first insertion portion 11, the second deformation portion 31a and the first deformation portion 11a are formed to overlap. When the second deformation portion 31a overlaps with the first deformation portion 11a, the first deformation portion 11a and the second deformation portion 31a engage with each other, and the second insertion portion 31 is locked into the first insertion portion 11.

[0029] The base portion 32 is formed continuously with the second insertion portion 31 and has a substantially frustoconical shape. The base portion 32 is formed to have a larger diameter than the rod 2. The base portion 32 comprises a small-diameter base portion 32a that is continuous with the second insertion portion 31, a large-diameter base portion 32b that is formed to have a larger diameter than the small-diameter base portion 32a, and four base body portions 32c that connect the small-diameter base portion 32a and the large-diameter base portion 32b. The small-diameter base portion 32a has an annular shape and is formed to have a larger diameter than the base end of the second insertion portion 31. A stepped portion 32d that protrudes perpendicularly in the radially outward direction is formed at the base end of the second insertion portion 31. The large-diameter base portion 32b has a cylindrical shape and is formed continuously with the base body portion 32c. The outer diameter of the large-diameter base portion 32b is smaller than the inner diameter of the protective ring 20. A stepped portion 32e is formed between the main body portion 32c and the large-diameter portion 32b of the base body, extending radially outward.

[0030] The base body portion 32c is a plate-like portion that connects the base small diameter portion 32a and the base large diameter portion 32b. A groove portion 32f is formed on the surface of the base body portion 32c along the direction of extension. By providing the groove portion 32f, the strength of the base body portion 32c can be increased. Instead of the groove portion 32f, a rib may be provided, or the groove portion 32f may be omitted. Between adjacent base body portions 32c, 32c, a rod plug opening 33 that opens to the side is formed. The shape and number of rod plug openings 33 are not limited, but in this embodiment, four openings that are approximately trapezoidal in side view are formed.

[0031] Next, a method for manufacturing a fishing rod according to this embodiment will be described. The method for manufacturing a fishing rod includes an assembly step, a deformation step, and a rod insertion step. The manufacturing method described below is an example, and the order may be changed as appropriate.

[0032] The assembly process involves assembling the composite structure, including the grip body 1. The grip body 1 and the rod stopper 30 are assembled. Adhesive is applied to the outer surface of the second insertion portion 31 of the rod stopper 30, and the second insertion portion 31 of the rod stopper 30 is inserted into the inner surface of the first insertion portion 11 of the grip body 1 from the butt end. At this time, the receiving portion 10a of the grip body 1 and the stepped portion 32d of the rod stopper 30 come into contact, and the protruding portion 12a of the grip body 1 and the stepped portion 32e of the rod stopper 30 come into contact. Furthermore, a cover plate 40 is attached to the inside of the large-diameter base portion 32b of the rod stopper 30 using adhesive or the like. The rear surface (the side facing the rod base) of the cover plate 40 may be decorated with a design or the like. Also, a protective ring 20 is attached to the inner circumference of the large-diameter portion 12.

[0033] The deformation process is a process of forming deformed portions in the first insertion portion 11 and the second insertion portion 31. In the deformation process, as shown in Figure 7, after the assembly of the rod stopper 30 and the like to the grip body 1 is completed, the base ends of the first insertion portion 11 and the second insertion portion 31 are pressed from the radially outward direction with a press machine P. In this embodiment, the base end of the milled surface 14 of the first insertion portion 11 is pressed. As a result, as shown in Figure 4, the first insertion portion 11 and the second insertion portion 31 are plastically deformed to form the first deformed portion 11a and the second deformed portion 31a so that they overlap and engage with each other.

[0034] The rod insertion process involves inserting the first insertion portion 11 into the rod 2. In the rod insertion process, as shown in Figure 8, adhesive is applied to the outer surface of the first insertion portion 11 of the grip body 1, and the first insertion portion 11 is inserted into the rod 2 until the base end of the rod 2 touches the receiving portion 10a. With this, the fishing rod R1 is completed.

[0035] In the fishing rod R1 of this embodiment described above, the inner circumferential surface of the rod shaft 2 and the first insertion portion 11 of the grip body 1 are bonded together, and the main body portion 10 of the grip body 1 is exposed to the outside of the rod shaft 2. Conventionally, the grip was bonded to the outer circumferential surface of the rod shaft, so the grip had to be made larger to accommodate the bonding area. However, in this embodiment, the first insertion portion 11 is inserted into the inside of the rod shaft 2, making it possible to miniaturize the main body portion 10 of the grip body 1 regardless of the bonding area.

[0036] Furthermore, since the first insertion portion 11 has a first deformation portion 11a, the bonding strength can be easily increased by bonding the rod 2 and the first deformation portion 11a. In other words, because the adhesive remains on the first deformation portion 11a, the bonding strength between the first insertion portion 11 and the rod 2 can be further increased by the anchoring effect, and the bonding work can be easily performed.

[0037] Furthermore, a flat milled surface 14 is formed on the outer circumferential surface of the first insertion portion 11, along the axial direction of the rod 2, and the first deformation portion 11a is formed on the milled surface 14. As a result, the adhesive is guided to the milled surface and moves to the first deformation portion 11a, so that the adhesive can be introduced without being squeezed out to the outside.

[0038] Furthermore, the first deformed portion 11a is formed on the base end side of the first insertion portion 11. This allows the adhesive to be guided to the base end side, ensuring a larger bonding area. Also, when the first deformed portion 11a and the second deformed portion 31a are formed by plastic deformation as in this embodiment, forming them on the base end side rather than the tip side can prevent damage.

[0039] Furthermore, the grip body 1 is hollow and is equipped with a rod stopper 30 that is inserted into the hollow portion of the grip body 1. The rod stopper 30 comprises a base portion 32 that is inserted into the inside of the grip body 1 and a second insertion portion 31 that extends from the base portion 32 and is bonded to the inner surface of the first insertion portion 11. As a result, by inserting the rod stopper 30 into the grip body 1 and inserting the second insertion portion 31 of the rod stopper 30 into the first insertion portion 11, the joint strength between the rod 2 and the grip body 1 can be further increased. In other words, the joint between the end of the rod 2 and the grip body 1 is a part where a large force is applied, but because the first insertion portion 11 and the second insertion portion 31 have a double structure, the strength can be increased.

[0040] Furthermore, the engagement between the first deformed portion 11a and the second deformed portion 31a allows the second insertion portion 31 to be easily locked into the first insertion portion 11. The first insertion portion 11 and the second insertion portion 31 may be bonded together, but in this embodiment, they are engaged solely by plastic deformation through crimping. This allows the process to proceed to the rod insertion step without waiting for bonding time, thus shortening the manufacturing cycle.

[0041] <Example 1> Next, I will explain variations of the first and second modified examples. As shown in Figure 9, the first deformed portion 11a and the second deformed portion 31a may be holes that penetrate vertically. Even with such a modified form, adhesive can be guided to the first deformed portion 11a and the second deformed portion 31a, and the bonding strength between the first insertion portion 11 and the rod 2 can be further increased by the anchoring effect. The first deformed portion 11a and the second deformed portion 31a can be penetrated by pressing them with a press machine P. This causes the broken first deformed portion 11a and the second deformed portion 31a to overlap and engage, thus locking them together. Alternatively, for example, instead of a press machine P, screw hole processing may be performed. Even in this way, the same effect as modified form 1 can be achieved.

[0042] Although embodiments and modifications of the present invention have been described above, the design can be modified as appropriate without departing from the spirit of the invention. For example, in this embodiment, the rod 2 and the first insertion part 11 are joined by adhesive, but engagement, screwing, etc., may also be used. For example, a protrusion may be provided on the inner circumferential surface of the rod, and the protrusion and the first deformed part of the first insertion part may be engaged to join them. Alternatively, for example, a male screw may be provided on the inner circumferential surface of the rod, and the male screw may be screwed into the female screw (first deformed part that is concave in the radial direction) of the first insertion part. [Explanation of Symbols]

[0043] R1 fishing rod 1 Grip body 2 rods 10 Main body 10a Receiving part 10b First enlarged diameter part 10c Second enlarged diameter part 11 First insertion section 11a First deformation section 12 Large diameter section 13 Opening 14 Milled surface 20 protective rings 30 Rod stopper 31 Second insertion section 31a Second deformation section 32 Base part 33 Rod stopper opening

Claims

1. A fishing rod comprising a rod shaft and a grip body attached to the rear end of the rod shaft, The aforementioned grip body is The main body portion protruding from the rear end of the aforementioned rod, It comprises a first insertion portion that extends from the main body toward the rod and is inserted into the rod, The outer circumferential surface of the first insertion portion is provided with a first deformed portion that is concave in a direction away from the inner circumferential surface of the rod, The first insertion portion is bonded to the inner circumferential surface of the rod with an adhesive. The first insertion portion has a flat milled surface formed on its outer circumferential surface along the axial direction of the rod, The fishing rod is characterized in that the first deformed portion is formed on the milled surface.

2. The fishing rod according to claim 1, characterized in that the first deformed portion is formed on the base end side of the first insertion portion.

3. A fishing rod comprising a rod shaft and a grip body attached to the rear end of the rod shaft, The aforementioned grip body is The main body portion protruding from the rear end of the aforementioned rod, It comprises a first insertion portion that extends from the main body toward the rod and is inserted into the rod, The outer circumferential surface of the first insertion portion is provided with a first deformed portion that is concave in a direction away from the inner circumferential surface of the rod, The grip body is hollow and is equipped with a rod stopper that is inserted into the hollow portion of the grip body. The aforementioned rod stopper is A base portion inserted into the grip body, It comprises a second insertion portion that extends from the base portion and is inserted into the inner circumferential surface of the first insertion portion, The fishing rod is characterized in that the outer circumferential surface of the second insertion portion is concave in a direction away from the inner circumferential surface of the rod and has a second deformed portion that engages with the first deformed portion.

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