Rear Grip

The non-circular rear grip design with varying diameters and side surfaces addresses the discomfort and maneuverability issues of conventional grips, enhancing grip and maneuverability for sea bass fishing.

JP3255001UActive Publication Date: 2026-03-06DAIWA SEIKO CORPORATION
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2026-01-07
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Conventional fishing rod grips are uncomfortable and unsuitable for various manipulation actions, particularly in sea bass fishing, due to their non-circular shape and lack of upper side surfaces, making it difficult to provide assistance in swinging and reeling operations.

Method used

A rear grip with a non-circular cross-section design featuring upper, left, and right side surfaces, each with peaks, and a hollow structure, allowing for a larger peak-to-peak length and varying diameters to fit the natural shape of the hand, enhancing grip and maneuverability.

Benefits of technology

The design provides a stable and comfortable grip that improves operability and maneuverability, especially for sea bass fishing, by accommodating different fishing techniques with a trapezoidal contact surface and conforming to the user's body shape.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a rear grip that can accurately and reliably assist various uses and operation actions of a fishing rod, particularly one used for sea bass fishing. [Solution] A rear grip through which a fishing rod can be inserted includes a bulging portion 2, which has a non-circular shape when viewed in a cross section perpendicular to the extension direction of the rear grip and is composed of an upper surface 3, a lower surface, a left side surface 4a including a first peak, and a right side surface 4b including a second peak. On the left and right sides, a first left side surface 4e extending from the first peak 4c to the upper surface and a second right side surface 4f extending from the second peak 4d to the upper surface are formed, respectively, and the length of the line connecting the first peak of the first left side surface and the second peak of the second right side surface (peak-to-peak length) is configured to be greater than the left-right width of the upper surface when viewed in a cross section perpendicular to the extension direction of the rear grip.
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Description

[Technical Field]

[0001] This invention relates to a rear grip used on fishing rods, especially for sea bass fishing. [Background technology]

[0002] Conventionally, the grip portion behind the reel attachment portion of a fishing rod has been held tightly when casting the tackle far away, held under the arm when reeling in the tackle to facilitate the winding operation of the fishing reel, and rested with the elbow on the side when waiting for a fish to bite or when luring the fish by raising the fishing rod up and down, and has been used in various ways depending on the situation.

[0003] As an example of a fishing rod with such a rear grip portion, Patent Document 1 discloses a fishing rod that has a rod body with a hollow rear grip portion integrally formed thereon and bulging radially outward, and that is also equipped with a reel seat, in which the rear grip portion is offset downward from the center of the rod body, and in the region rearward of the inflection point of the lower surface of the rear grip portion, the radius of curvature of the lower surface of the rear grip portion gradually increases toward the rear. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 7033412 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in conventional configurations, including the fishing rod of Patent Document 1, the top surface is the widest, and there is no upper side surface, so the top surface is the widest, which makes it feel uncomfortable when held under the arm, and it is not suitable for actions that involve swinging the rod from side to side, and there is a problem that it is difficult to provide a rear grip that assists in various uses and manipulation actions of the fishing rod, particularly when fishing for sea bass.

[0006] The object of the present invention is to provide a rear grip that can accurately and reliably assist various uses and manipulation actions of a fishing rod, particularly for sea bass fishing. Objects of the present invention other than those mentioned above will become apparent by reading the entire specification. [Means for solving the problem]

[0007] A rear grip according to one embodiment of the present invention is a rear grip through which a fishing rod can be inserted, the rear grip having a bulge portion which, when viewed in a cross section perpendicular to the extension direction of the rear grip, has a non-circular shape and is composed of an upper surface, a lower surface, a left side surface including a first peak, and a right side surface including a second peak, the left side surface and the right side surface each having a first left side surface portion extending from the first peak to the upper surface and a second right side surface portion extending from the second peak to the upper surface, the length of the line connecting the first peak of the first left side surface portion and the second peak of the second right side surface portion (peak-to-peak length) being greater than the left-right width of the upper surface when viewed in a cross section perpendicular to the extension direction of the rear grip.

[0008] 10. The rear grip according to claim 1, wherein the rear grip is hollow.

[0009] In a rear grip according to one embodiment of the present invention, the rear grip is formed with a tip cylindrical portion connected to the bulge portion and formed on the first end side of the bulge portion, and a base cylindrical portion connected to the bulge portion and formed on the second end side of the bulge portion.

[0010] In a rear grip according to one embodiment of the present invention, when viewed in a cross section perpendicular to the extension direction of the rear grip, the first apex of the first left side surface portion and the second apex of the second right side surface portion are located on the lower side of the center point of the first left side surface portion and the center point of the second right side surface portion, respectively.

[0011] In a rear grip according to one embodiment of the present invention, when viewed in a cross section passing through the central axis of the rod body, the center line of the upper surface, and the center line of the lower surface, the upper surface of the bulge portion is configured to have an expanding portion whose diameter expands from the first end side toward the second end side.

[0012] In a rear grip according to one embodiment of the present invention, when viewed in a cross section passing through the center axis of the rod body, the center line of the upper surface, and the center line of the lower surface, the lower surface of the bulge portion is configured to have a first curved surface portion that expands in diameter from the first end side toward the second end side, an inflection portion, and a second curved surface portion that contracts in diameter from the first end side toward the second end side.

[0013] In a rear grip according to one embodiment of the present invention, the maximum downward bulging height of the first curved surface portion of the bulging portion is configured to be greater than the maximum upward bulging height of the expanded diameter portion of the bulging portion.

[0014] In a rear grip according to one embodiment of the present invention, when viewed in a cross section perpendicular to the extension direction of the rear grip, the first apex of the first left side surface portion and the second apex of the second right side surface portion are located between the center point of the first left side surface portion and the lower surface, and between the center point of the second right side surface portion and the lower surface, respectively.

[0015] In a rear grip according to one embodiment of the present invention, a first mounting portion and a second mounting portion for mounting the fishing rod body are provided on the inner surface of a tip cylindrical portion connected to the bulge portion and formed on the first end side of the bulge portion, and on the inner surface of a base cylindrical portion connected to the bulge portion and formed on the second end side of the bulge portion, respectively. [Effects of the Invention]

[0016] The embodiment of the present invention makes it possible to provide a rear grip that can accurately and reliably assist various uses and manipulation actions of a fishing rod, particularly one used for sea bass fishing. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a diagram illustrating the overall configuration of a fishing rod 10 equipped with a rear grip 1 according to an embodiment of the present invention. [Figure 2] 1 is a side view illustrating a bulge 2 of a rear grip 1 according to an embodiment of the present invention. [Figure 3] 1 is a cross-sectional (longitudinal) view illustrating the configuration of a bulge 2 of a rear grip 1 according to an embodiment of the present invention. [Figure 4] 1 is a cross-sectional view (transverse cross-section) illustrating the configuration of a bulge 2 of a rear grip 1 according to an embodiment of the present invention. [Figure 5] (a) is a diagram illustrating the state in which the arm or elbow is placed against the upper surface 3 of the rear grip 1 when operating the fishing rod 10 to move the fishing rod 10 left and right (lure operation), (b) is a diagram illustrating the state in which the arm or elbow is placed against the left and right side surfaces 4a, 4b of the rear grip 1 when operating the fishing rod 10 to move the fishing rod 10 left and right (lure operation), and (c) is a diagram illustrating the state in which the left and right side surfaces 4a, 4b of the rear grip 1 are placed against the armpits when operating the fishing rod 10 to hold the rear grip 1 between the arms (reeling operation). [Figure 6] 1 is a cross-sectional (transverse) view illustrating the top of an expansion portion 2 of a rear grip 1 according to an embodiment of the present invention. [Figure 7] (a) A cross-sectional (horizontal) view of the expansion portion 2 of a rear grip 1 according to one embodiment of the present invention at the center between the first end 2a and the inflection portion 5c, (b) A cross-sectional (horizontal) view of the expansion portion 2 of a rear grip 1 according to one embodiment of the present invention at the inflection portion 5c, and (c) A cross-sectional (horizontal) view of the expansion portion 2 of a rear grip 1 according to one embodiment of the present invention at the center between the inflection portion 5c and the second end 2b.

[0018] Various embodiments of the present invention will be described below with reference to the accompanying drawings. The same reference numerals are used to designate common components in the drawings. It should be noted that the drawings are not necessarily drawn to scale for the sake of clarity.

[0019] First, with reference to Figures 1 and 3, the overall structure of a fishing rod 10 equipped with a rear grip 1 according to one embodiment of the present invention will be described. Figure 1 is a diagram illustrating the overall structure of a fishing rod 10 equipped with a rear grip 1 according to one embodiment of the present invention, and Figure 3 is a cross-sectional view (a cross-section (longitudinal cross-section) taken along a plane passing through the center line of the upper surface, the axis, and the center line of the lower surface) illustrating the structure of the bulge 2 of the rear grip 1 according to one embodiment of the present invention. As shown in Figure 1, a fishing rod used particularly for sea bass fishing is provided with a fishing rod 10 having a rod body 10a, a reel seat 20 (details omitted) for securing a reel leg 100a of a fishing reel 100, and a rear grip 1 (described later) on the rear side of the rod body 10a. The rear grip 1 is formed entirely from a fiber-reinforced resin, and more preferably, is formed primarily from layers of fibers aligned in the longitudinal direction by laminating prepreg or the like.

[0020] 3, the rear grip 1 according to one embodiment of the present invention is formed with an expanded portion 2 (described later), a tip cylindrical portion 6 connected to the expanded portion 2 and formed on a first end 2a side of the expanded portion 2, and a butt cylindrical portion 7 connected to the expanded portion and formed on a second end 2b side of the expanded portion. Also, as shown in FIG. 3, the rear grip 1 is hollow (has a hollow structure), and a fishing rod body 10a is inserted therethrough, so that the rear grip 1 and the fishing rod body 10a do not come into direct contact with each other. The rear grip 1 is attached to the fishing rod body 10a via a first attachment portion 8 (e.g., a spacer member or a decorative ring member) provided on the inner surface of the tip end side of the rear grip 1, and is also attached to the fishing rod body 10a via a second attachment portion 9 (e.g., a spacer member or a decorative ring member) provided on the inner surface of the rear end side of the rear grip 1. Also, the rear grip 1 may be attached by directly adhering the tip and rear end sides of the rear grip 1 to the fishing rod body 10a.

[0021] Next, the rear grip 1 according to one embodiment of the present invention will be further described with reference to Figures 2 to 7. Figure 2 is a side view illustrating the bulging portion 2 of the rear grip 1 according to one embodiment of the present invention, Figure 4 is a cross-sectional view (cross-sectional view (transverse section) perpendicular to the extension direction of the rear grip 1) illustrating the configuration of the bulging portion 2 of the rear grip 1 according to one embodiment of the present invention, Figure 5(a) is a view illustrating a state in which an arm or elbow is placed on the upper surface 3 of the rear grip 1 when operating the fishing rod 10 in an operation such as moving the fishing rod 10 up and down (lure operation), and Figure 5(b) is a view illustrating a state in which an arm or elbow is placed on the upper surface 3 of the rear grip 1 when operating the fishing rod 10 in an operation such as moving the fishing rod 10 left and right. FIG. 5(a) is a diagram illustrating the state in which the arms and elbows are placed against the left and right side surfaces 4a, 4b of the rear grip 1 when operating the fishing rod 10 to perform a lure operation (lure operation), and FIG. 5(b) is a diagram illustrating the state in which the left and right side surfaces 4a, 4b of the rear grip 1 are placed against the armpits when operating the fishing rod 10 to perform an operation in which the rear grip 1 is held between the arms (reeling operation). FIG. 6 is a cross-sectional view (cross-sectional view (transverse cross-section) perpendicular to the extension direction of the rear grip 1) illustrating the top of the expansion portion 2 of the rear grip 1 according to one embodiment of the present invention. In addition, Figure 7(a) is a cross-sectional view (cross-sectional view (horizontal cross-section) perpendicular to the extension direction of the rear grip 1) at the center (position A1 in Figure 2) between the first end 2a and the inflection portion 5c of the expansion portion 2 of the rear grip 1 according to one embodiment of the present invention, Figure 7(b) is a cross-sectional view (cross-sectional view (horizontal cross-section) perpendicular to the extension direction of the rear grip 1) at the inflection portion 5c (position A2 in Figure 2) of the expansion portion 2 of the rear grip 1 according to one embodiment of the present invention, and Figure 7(c) is a cross-sectional view (cross-sectional view (horizontal cross-section) perpendicular to the extension direction of the rear grip 1) at the center (position A3 in Figure 2) between the inflection portion 5c and the second end 2b of the expansion portion 2 of the rear grip 1 according to one embodiment of the present invention.

[0022] As shown in Figures 2, 3 and 4, the rear grip 1 according to one embodiment of the present invention is a rear grip 1 through which a fishing rod 10a can be inserted, and the rear grip 1 has a bulging portion 2, and the bulging portion 2 has a non-circular shape when viewed in a cross section perpendicular to the extension direction of the rear grip 1 (for example, the cross section shown in Figure 4), and is composed of an upper surface 3, a left side surface 4a including a first peak 4c, a right side surface 4b including a second peak 4d, and a lower surface 5, and the left side surface 4a and the right side surface 4b are In each of the rear grips 1, a first left side surface 4e extending from the first peak 4c to the top surface 3 and a second right side surface 4f extending from the second peak 4d to the top surface 3 are formed, and when viewed in a cross section perpendicular to the extension direction of the rear grip 1 (for example, the cross section shown in FIG. 4), the length Y of the line connecting the first peak 4c of the first left side surface 4e and the second peak 4d of the second right side surface 4f (the length (width) between the two peaks) is configured to be greater than the left-right width X of the top surface 3. Here, as shown in FIG. 4, the left-right direction of the top surface 3 refers to the left-right direction on the plane of the paper in FIG. 4, and the left-right width X of the top surface 3 refers to the length (width) between the left side surface 4a of the top surface 3 and the right side surface 4b of the top surface 3 in the left-right direction. Here, the thickness of the bulge portion 2 (upper surface 3, left and right side surfaces 4a, 4b, and lower surface 5) is basically constant, and the left and right width of the upper surface 3 is formed to a length greater than the radius and less than the diameter of the tip cylindrical portion 6 and the base cylindrical portion 7.

[0023] The rear grip 1 according to one embodiment of the present invention can provide a rear grip that can accurately and reliably assist in various uses and manipulations of a fishing rod, particularly for sea bass fishing. As shown in Fig. 5, when manipulating a fishing rod 10, the arm or elbow is placed on the top surface 3 of the rear grip 1 (as shown in Fig. 5(a)) when moving the fishing rod 10 up and down (lure manipulation), and on the left and right side surfaces 4a, 4b (as shown in Fig. 5(b)) when moving the fishing rod 10 left and right (lure manipulation). When the expanded portion 2 of the rear grip 1 is positioned on the first left side surface 4a, 4b (as shown in Fig. 5(b)) when moving the fishing rod 10 left and right (lure manipulation), the expanded portion 2 of the rear grip 1 is positioned on the first left side surface 4a, 4b (as shown in Fig. 5(b)) when viewed in a cross section perpendicular to the extension direction of the rear grip 1 (for example, the cross section shown in Fig. 4). The length Y of the line connecting the first top 4c of the first left side portion 4e and the second top 4d of the second right side portion 4f (the length (width) between the two tops) is configured to be larger than the left-right width X of the top surface 3, so that the top surface 3, the first left side portion 4e, and the second right side portion 4f can form a contact surface with a substantially trapezoidal shape (structure). This allows the arm or elbow to be rhythmically and stably placed against the rear grip 1 when operating the fishing rod 10, which has been found to significantly improve the operability and gripping ability of the fishing rod.As shown in FIG. 5, when the fishing rod 10 is operated such that the rear grip 1 is held between the arms (reeling operation), the left and right side surfaces 4a, 4b of the rear grip 1 (as shown in FIG. 5(c)) are placed under the armpits when the fishing rod 10 is operated. The base cylindrical portion 7 described above has a smaller diameter than the bulging portion 2, the details of which will be described later, making it easier to hold the rear grip 1 in place. In addition, the bulging portion 2 of the rear grip 1 has a smaller diameter than the first top portion 4c of the first left side surface portion 4e and the second top portion 4d of the second right side surface portion 4f when viewed in a cross section perpendicular to the extension direction of the rear grip 1 (for example, the cross section shown in FIG. 4). The length Y of the line connecting these (the length (width) between the two tops) is configured to be greater than the left-right width X of the top surface 3, and as a result, the top surface 3, the first left side surface portion 4e, and the second right side surface portion 4f can form a contact surface with a substantially trapezoidal shape (structure), which fits (adapts) to the body shape under the armpits and allows for smooth and stable operation (such slight differences in shape can result in significant changes in operability and grip, and it can be said that the structure of the rear grip 1 according to one embodiment of the present invention reflects the ideals of anglers in reality).

[0024] 6 and 7, in the rear grip 1 according to one embodiment of the present invention, when viewed in a cross section perpendicular to the extension direction of the rear grip 1 (cross section of FIG. 6), the first top 4c of the first left side surface 4e and the second top 4d of the second right side surface 4f in the expanding portion 2 are respectively aligned with a first center point 4g of the first left side surface (the center axis Z of the fishing rod body (the center axis of the tip cylindrical portion 6 described above, the center axis of the base cylindrical portion 7 described above, or the center (center) point of the tip cylindrical portion 6 described above and the center (center) point of the base cylindrical portion 7 described above). ) point) in the left-right direction (width direction) intersects with the left side surface 4a), and a second central point 4h of the second right side surface portion (a point where a line extending in the left-right direction (width direction) from the central axis Z of the rod body (the central axis of the aforementioned tip cylindrical portion 6, the central axis of the aforementioned base cylindrical portion 7, or an axis (axis) connecting the center (center) point of the aforementioned tip cylindrical portion 6 and the center (center) point of the aforementioned base cylindrical portion 7) intersects with the right side surface 4b). That is, in the inflatable portion 2, the first apex 4c of the first left side surface portion 4e and the second apex 4d of the second right side surface portion 4f are each formed within the "area where the apex is located" shown in Figure 6 (note, however, that this excludes the center points of the left and right side surfaces 4a, 4b and the lower surface 5).

[0025] As shown in FIG. 3, in a rear grip 1 according to one embodiment of the present invention, the upper surface 3 of the bulging portion 2 is configured to have an expanded diameter portion 3b that expands in diameter from the first end 2a toward the second end 2b in a cross section (cross section shown in FIG. 3) passing through the central axis Z of the fishing rod body 10a, the center line 3a of the upper surface 3, and the center line 5a of the lower surface 5. As shown in FIG. 5(a), this configuration facilitates contact with the elbow when placing the rear grip 1 on the underside of the arm (because the elbow is a hard part of the forearm and has few soft muscles that can be an uncertain factor when contacting the arm), allowing for more rhythmic maneuvers. Here, the terms "expanded diameter" and "expanded diameter portion 3b" refer to the portion in which the height of the upper surface 3 of the bulging portion 2 of the rear grip 1 (in the upward direction in the vertical direction of the paper in FIG. 3) increases from the first end 2a toward the second end 2b, as shown in FIG. 3.

[0026] As shown in FIG. 3, in a rear grip 1 according to one embodiment of the present invention, the lower surface 5 of the bulging portion 2 is configured to have a first curved portion 5b that expands in diameter from the first end 2a toward the second end 2b, an inflection portion 5c, and a second curved portion 5d that contracts in diameter from the first end 2a toward the second end 2b in a cross section (shown in FIG. 3) passing through the central axis Z of the fishing rod body 10a, the center line 3a of the upper surface 3, and the center line 5a of the lower surface 5. This allows the rear grip 1 to be held in a natural manner because the rear grip 1 conforms to the shape of the hand. Here, "expanding in diameter" refers to the fact that the height of the lower surface 5 of the bulging portion 2 of the rear grip 1 (in the downward direction in the vertical direction of the paper in FIG. 3) increases from the first end 2a toward the second end 2b. Furthermore, the term "reduced diameter" refers to the fact that the height of the lower surface 5 of the bulge portion 2 of the rear grip 1 (downward in the vertical direction of the paper in Figure 3) decreases from the first end 2a side toward the second end 2b side, as shown in Figure 3.

[0027] Furthermore, in the rear grip 1 according to one embodiment of the present invention, the maximum downward bulging height of the first curved surface portion 5b of the bulging portion 2 (the downward height of the inflection portion 5c in the vertical direction of the paper in FIG. 3) is configured to be greater than the maximum upward bulging height of the expanded diameter portion 3 of the bulging portion 2 (the upward height in the vertical direction of the paper in FIG. 3). In this way, the peaks can be shifted downward, which allows the both side surfaces to be made wider, and also makes it possible to secure a larger contact surface with the arm when placing the rear grip against the inside of the arm, as shown in FIG. 5(c) described above.

[0028] 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. Furthermore, 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]

[0029] 1 rear grip 2 Bulge 2a First end 2b Second end 3 Top surface 3a Chuo Line 3b Expanded diameter part 4a Left side 4b Right side 4c First summit 4d Second summit 4e Left side part 4f Right side part 4g First center point 4h Second Center Point 5 Bottom side 5a Chuo Line 5b First curved surface portion 5c Inflection part 5d Second curved surface 6 Tip cylindrical part 7. Base cylindrical part 8 First mounting part 9 Second mounting part 10 fishing rod 10a rod body 20 reel seat 100 Fishing Reels 100a reel leg

Claims

1. A rear grip through which a fishing rod can be inserted, The rear grip has a bulge portion, the bulging portion has a non-circular shape when viewed in a cross section perpendicular to the extension direction of the rear grip, and is composed of an upper surface, a lower surface, a left side surface including a first peak, and a right side surface including a second peak, a first left side surface portion extending from the first apex to the upper surface and a second right side surface portion extending from the second apex to the upper surface are formed on the left side surface and the right side surface, respectively; A rear grip characterized in that, when viewed in a cross section perpendicular to the extension direction of the rear grip, the length of a line connecting the first top of the first left side surface portion and the second top of the second right side surface portion is greater than the left-right width of the upper surface.

2. The rear grip according to claim 1 , wherein the rear grip is hollow.

3. 2. The rear grip according to claim 1, wherein the rear grip is formed with a tip cylindrical portion connected to the bulge portion and formed on a first end side of the bulge portion, and a base cylindrical portion connected to the bulge portion and formed on a second end side of the bulge portion.

4. 2. The rear grip according to claim 1, wherein, when viewed in a cross section perpendicular to the extension direction of the rear grip, the first apex of the first left side surface portion and the second apex of the second right side surface portion are located on the lower surface side of the center point of the first left side surface portion and the center point of the second right side surface portion, respectively.

5. 2. The rear grip according to claim 1, wherein, when viewed in a cross section passing through the center axis of the rod body, the center line of the upper surface, and the center line of the lower surface, the upper surface of the bulging portion has an expanding portion whose diameter expands from the first end side toward the second end side.

6. 6. A rear grip according to claim 1 or 5, wherein, when viewed in a cross section passing through the central axis of the rod body, the center line of the upper surface, and the center line of the lower surface, the lower surface of the bulge portion has a first curved surface portion that expands in diameter from the first end side toward the second end side, an inflection portion, and a second curved surface portion that contracts in diameter from the first end side toward the second end side.

7. 7. The rear grip according to claim 6, wherein a maximum downward bulging height of said first curved surface portion is greater than a maximum upward bulging height of said expanded diameter portion.

8. 2. The rear grip according to claim 1, wherein, when viewed in a cross section perpendicular to the extension direction of the rear grip, the first apex of the first left side surface portion and the second apex of the second right side surface portion are located between a center point of the first left side surface portion and the lower surface, and between a center point of the second right side surface portion and the lower surface, respectively.

9. 4. The rear grip according to claim 3, wherein a first mounting portion and a second mounting portion for mounting the fishing rod body are provided on the inner surface of a tip cylindrical portion connected to the bulging portion and formed on a first end side of the bulging portion, and on the inner surface of a base cylindrical portion connected to the bulging portion and formed on a second end side of the bulging portion, respectively.

Citation Information

Patent Citations

  • fishing rod

    JP7033412B2