Fishing line guide and fishing rod having the same

By forming a convex part on the inner circumferential surface of the through hole of the fishing line guide, the problem of complex gate mark removal process is solved, and fishing line guides and fishing rods with low cost and high bonding strength are realized.

CN122228018APending Publication Date: 2026-06-16DAIWA SEIKO CORPORATION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DAIWA SEIKO CORPORATION
Filing Date
2024-08-23
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing fishing line guides require the removal of gate marks after injection molding, which complicates the process and increases costs, while also affecting the bonding strength between the guide body and the guide ring.

Method used

A convex portion is formed on the inner circumferential surface of the through hole of the fishing line guide, and the gate mark is disposed on the inner circumferential surface of the guide body. The guide ring is embedded and fixed by adhesive, avoiding the process of removing the gate mark and using the gate mark to improve the bonding strength.

Benefits of technology

The process was simplified, costs were reduced, and the bonding strength between the guide body and the guide ring was improved.

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Abstract

The present application provides a fishing line guide in which a guide ring is mounted on a guide body without removing a gate mark formed by injection molding, and a fishing rod provided with the fishing line guide. Specifically, a fishing line guide according to an embodiment of the present application is mounted on a fishing rod, and includes a guide body formed with a through hole, a guide ring inserted into the through hole of the guide body, and a gate mark formed on an inner peripheral surface defining the through hole of the guide body and protruding into the through hole of the guide body. The guide body is formed so that, when viewed in a direction perpendicular to the guide body, the through hole includes one or more convex portions that are more convex toward the radial direction outside than a perfect circle, and the gate mark is disposed at a position of the inner peripheral surface defining the through hole of the guide body at which the one or more convex portions of the through hole are formed.
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Description

Technical Field

[0001] cross-reference This application claims priority based on Japanese Patent Application 2024-003428 (filed on January 12, 2024), the contents of which are incorporated herein by reference in their entirety. This invention relates to a fishing line guide and a fishing rod having the fishing line guide. Background Technology

[0002] Previously, various fishing rods were known to have a line guide installed on the outside of the rod for guiding the fishing line.

[0003] The fishing line guide used in this type of fishing rod typically includes a guide ring for guiding the fishing line and a guide bracket for holding the guide ring. The guide bracket has a mounting portion for mounting onto the rod body and a bracket body portion that stands upright from the mounting portion. The guide ring is then installed into the ring mounting hole in the bracket body portion, and the fishing line is passed through the guide ring for guidance.

[0004] As such a fishing line guide, for example, Patent Document 1 discloses a fishing line guide installed on the outside of the rod body. This fishing line guide has a guide ring for guiding the fishing line and a guide bracket made of synthetic resin for holding the guide ring. The guide bracket has a mounting part for mounting onto the rod body and a bracket body part that is erected from the mounting part and has a ring mounting hole formed thereon for mounting the guide ring. The guide bracket is integrally formed by injection molding, and the ring mounting hole is formed by hole machining after injection molding in order to remove a predetermined portion containing gate marks.

[0005] Patent documents Patent Document 1: Japanese Patent Application Publication No. 2016-135103 Summary of the Invention

[0006] However, in the fishing line guide disclosed in Patent Document 1, since the gate is located on the inner diameter side of the ring retainer and the gate needs to be removed during hole machining, there is a problem that the gate removal process is unavoidable during hole machining of the fishing line guide.

[0007] The present invention was made in view of the above-mentioned circumstances, and the technical problem to be solved is to provide a fishing line guide in which a guide ring can be installed on the guide body without removing the gate mark, which not only eliminates the need for the gate mark removal process, but also helps to improve the adhesion strength between the guide body and the guide ring by utilizing the previously removed gate mark, as well as a fishing rod having the fishing line guide. Other than the above-mentioned objectives of the present invention will be apparent from the entire specification.

[0008] An embodiment of the present invention relates to a fishing line guide that is mounted on a fishing rod, characterized in that the fishing line guide comprises: a guide body having a through hole; a guide ring embedded in the through hole of the guide body; and a gate mark formed on the inner circumferential surface defining the through hole of the guide body and formed to protrude toward the through hole of the guide body. When viewed in a direction perpendicular to the guide body, the outline shape of the guide body defining the through hole is formed to include one or more convex portions that bulge radially outward beyond a perfect circle. The gate mark is disposed at the position of the one or more convex portions of the through hole formed on the inner circumferential surface defining the through hole of the guide body.

[0009] In one embodiment of the present invention, when a plurality of the gate marks are formed on the fishing line guide, one or more of the protrusions are formed in proportion to the number of the gate marks.

[0010] In one embodiment of the present invention, one or more of the convex portions are crescent-shaped.

[0011] In one embodiment of the present invention, the maximum height (D1) of the gate mark on the fishing line guide is in the range of 0.1 mm to 1.0 mm.

[0012] In one embodiment of the present invention, when viewed in a direction perpendicular to the guide body, the gate mark is formed at the center of the inner circumferential surface that defines the through hole of the guide body, or at a position that does not overlap with the two ends of the inner circumferential surface.

[0013] In one embodiment of the present invention, on a fishing line guide, one or more of the convex portions have a maximum height (L1) greater than or equal to the maximum height (D1) of the gate mark.

[0014] In a fishing line guide according to one embodiment of the present invention, the guide ring is bent in such a way that a gap is formed between its outer peripheral surface and the inner peripheral surface of the guide body, and the gate mark is formed between the outer peripheral surface of the guide ring and the inner peripheral surface of the guide body.

[0015] One embodiment of the present invention relates to a fishing line guide that further comprises an adhesive disposed in the gap.

[0016] One embodiment of the present invention relates to a fishing rod configured to have at least one of the above-mentioned fishing line guides.

[0017] According to the above embodiments, a guide ring can be installed on the guide body without removing the gate mark on a fishing line guide formed by injection molding. Since the gate mark removal process is not required, the existing process can be effectively simplified and the cost can be reduced. In addition, by effectively utilizing the previously removed gate mark, the bonding strength between the guide body and the guide ring can be improved. A fishing rod having the fishing line guide is also provided. Attached Figure Description

[0018] Figure 1 This is a diagram illustrating a fishing rod according to one embodiment of the present invention. Figure 2 This is a perspective view of a fishing line guide (without a guide ring) according to one embodiment of the present invention. Figure 3 This is a longitudinal sectional view of a fishing line guide according to one embodiment of the present invention. Figure 4 This is a perspective view of a fishing line guide (with a guide ring) according to one embodiment of the present invention. Figure 5 (a) is a diagram showing a portion of the ring retaining portion of a fishing line guide according to an embodiment of the present invention; (b) is an enlarged view of a portion of the ring retaining portion of a fishing line guide according to an embodiment of the present invention; (c) is a diagram showing the ring retaining portion of a fishing line guide according to an embodiment of the present invention. Figure 5 (a) A cross-sectional view of the ZZ section. Figure 6 This is a diagram showing the gate mark of the guide body of a fishing line guide according to one embodiment of the present invention. Figure 7 This is a diagram showing the outline shape of the through hole of the guide body of a fishing line guide according to one embodiment of the present invention. Symbol Explanation 1-Fishing rod; 2-Rod body; 3-First section of rod; 5-Middle section of rod; 6-Reel; 7-Tip section of rod; 9-Reel holder; 10-Fishing line guide; 11-Guide body; 12-Guide ring; 12b-Outer circumferential surface; 12h-Top of guide; 13-Foot; 14-Ring retainer; 15-Inner circumferential surface; 16-Gating mark; 17-Round part; 18-Convex part; 20-Outline shape; 21-Adhesive (adhesive layer); AC-Center position of inner circumferential surface; A1, A2-End positions of inner circumferential surface; L-Fishing line. Detailed Implementation

[0019] Hereinafter, embodiments of the fishing line guide and the fishing rod equipped with the fishing line guide according to the present invention will be specifically described with reference to the accompanying drawings. In the various drawings, common components are labeled with the same reference numerals throughout. For ease of explanation, the drawings are not necessarily described to an exact scale; this should be noted.

[0020] Figure 1 This figure illustrates one embodiment of the fishing rod according to the present invention. As shown, a fishing rod 1 according to one embodiment of the present invention includes: a rod body 2; a reel 6 mounted on the rod body 2 via a reel holder 9; and a fishing line guide 10 mounted on the rod body 2. In the illustrated embodiment, the reel holder 9 and the fishing line guide 10 each correspond to mounting parts mounted on the outer peripheral surface of the rod body.

[0021] The rod body 2 is constructed, for example, by connecting the first section 3, the middle section 5, and the tip section 7. These rod bodies are joined, for example, by a plug-in joint. The first section 3, the middle section 5, and the tip section 7 can be joined by a pull-out method, a reverse plug-in method, a sleeve method, or any other known joining method other than those mentioned above. The rod body 2 can also be constructed from a single rod body.

[0022] The first section 3, the middle section 5, and the tip section 7 are, for example, tubular bodies made of fiber-reinforced resin. These tubular bodies are manufactured by winding a fiber-reinforced resin prepreg (prepreg film) impregnated with a matrix resin in reinforcing fibers onto a mandrel, and then heating and curing the prepreg film. The reinforcing fibers included in the prepreg film can be, for example, carbon fiber, glass fiber, or any other known reinforcing fibers. The matrix resin included in the prepreg film can be a thermosetting resin such as epoxy resin. After the prepreg film is cured, the mandrel is removed. Furthermore, the outer surface of the tubular body is appropriately ground. Each rod body can also be constructed as a solid shape.

[0023] In the illustrated embodiment, multiple line guides 10 (line guides 10A to 10D) are provided on the first rod section 3, the middle rod section 5, and the tip section 7 to guide the fishing line released from the reel 6 mounted on the reel seat 9. More specifically, line guide 10A is provided on the first rod section 3, line guide 10B is provided on the middle rod section 5, and line guide 10C is provided on the tip section 7. Although a top guide 10D is provided at the top of the tip section 7, detailed description is omitted.

[0024] Next, refer to Figures 2 to 7 The fishing line guide 10 according to one embodiment of the present invention will be described. Figure 2 This is a perspective view of a fishing line guide (without a guide ring) according to one embodiment of the present invention. Figure 3 This is a longitudinal sectional view of the fishing line guide. Figure 4 This is a perspective view of a fishing line guide (with a guide ring) according to one embodiment of the present invention. Furthermore, Figure 5 (a) is a diagram showing a portion of the ring retaining portion of a fishing line guide according to one embodiment of the present invention. Figure 5 (b) is an enlarged view of a portion of the ring holding part of a fishing line guide according to an embodiment of the present invention. Figure 5 (c) is the ring retaining portion of the fishing line guide according to one embodiment of the present invention. Figure 5 (a) is a cross-sectional view observed at section ZZ. Furthermore, Figure 6 This is a diagram showing the gate mark of the guide body of a fishing line guide according to one embodiment of the present invention. Figure 7 This is a diagram showing the outline shape of the through hole of the guide body of a fishing line guide according to one embodiment of the present invention.

[0025] like Figure 3 As shown, the fishing line guide 10 includes a guide body 11 and an annular guide ring 12 mounted on the guide body 11. The guide body 11 has a foot 13 mounted on any one of the rod body 3, rod body 5, or rod body 7, and a plate-shaped ring retaining portion 14 connected to the foot 13. Figure 4 As shown, the annular guide ring 12 is typically fixed to the inner circumferential surface of the ring retaining portion 14 by an adhesive (adhesive layer) 21. Furthermore, the adhesive (adhesive layer) 21 is typically 0.1 mm or less, but to more clearly illustrate the appearance of the guide ring 12 and the ring retaining portion 14, [the thickness is shown in the image]. Figure 3 and Figure 4 For convenience, the gap is shown enlarged; please take note of this. For clarity, the following explanation will use the case where the fishing line guide 10 is mounted on the rod body 5 as an example.

[0026] In one embodiment of the invention, the foot 13 is an elongated plate-like or tongue-like component extending along the outer peripheral surface of the rod body 5. For example, the foot 13 can also be wound around the rod body 5 using a spool of nylon fiber. Although in Figure 2 The example shown is a single-leg fishing line guide mounted on the rod body via a single leg, but the guide ring to which the present invention can be applied is not limited to this single-leg type. For example, the present invention can also be applied to a two-legged guide ring. The two-legged fishing line guide has a set of legs extending from the ring holding portion to the front and rear sides respectively, and can be fixed to the rod body by means of this set of legs. Furthermore, the present invention can be applied to either fixed fishing line guides or movable fishing line guides (sometimes referred to as swimming guides).

[0027] In one embodiment of the invention, the ring retaining portion 14 extends from the upper end of the foot portion 13. The ring retaining portion 14 is inclined upwards and forwards from the rear of the rod body 5. That is, when the guide member 10 is installed onto the rod body 5, the ring retaining portion 14 is tilted forwards towards the rod body 5. As shown, a through hole is formed on the ring retaining portion 14, extending through the ring retaining portion 14 in a generally forward-backward direction of the rod body 5. This through hole is defined by the inner circumferential surface 14a of the ring retaining portion 14. The guide ring 12 is embedded in this through hole. Although the ring retaining portion 14 is a generally flat, plate-shaped component, the connection portion with the foot portion 13 is as follows... Figure 3 The curve is gently curved. That is, the ring retaining portion 14 includes: a generally flat portion with a through hole for inserting the guide ring 12; and a gently curved portion connected to the foot portion 13.

[0028] The foot 13 and ring retainer 14 of the fishing line guide 10 can be integrally formed using injection molding with metal or synthetic resin. Although detailed later, during injection molding, gate marks inevitably form on the inner circumferential surface of the through hole forming the ring retainer 14. Conventionally, a process to remove gate marks is performed beforehand to insert the guide ring 12 into the ring retainer 14. Here, a gate refers to the resin inlet (the inlet used to fill the product part into the mold with resin), and a gate mark refers to the remaining portion (residual edge) of the gate portion that remains at the location after the gate is removed during injection molding. Conversely, as... Figure 6 As shown in one example, in a fishing line guide 10 according to one embodiment of the present invention, a structure was found in which the guide ring 12 can be embedded into the ring retaining portion 14 and bonded and fixed without removing such gate marks. Details will be described later.

[0029] As described above, an annular guide ring 12 is embedded in the through hole of the ring retaining portion 14. The guide ring 12 is typically elliptical, circular, or approximately circular in shape, but is not limited to these forms. Figure 3 As shown, the guide ring 12 has: an inner circumferential surface 12a extending annularly in the circumferential direction of the guide ring 12; and an outer circumferential surface 12b extending substantially parallel to the inner circumferential surface 12a. The guide ring 12 is made of, for example, ceramic, metal, alloy, or a composite material thereof. Figure 3 In the example, the guide ring 12 is formed of ceramic material. However, it should be noted that the cross-sectional shape of the guide ring 12 is not uniform and may vary depending on the raw materials used.

[0030] Next, refer to again Figure 2 , 3 and Figure 5 , 6Section 7 details a fishing line guide 10 according to one embodiment of the present invention. The fishing line guide 10 according to one embodiment of the present invention is mounted on a fishing rod 1. The fishing line guide 10 includes: a guide body 11 having a through hole; a guide ring 12 embedded in the through hole of the guide body 11; and a gate mark 16 (although in...). Figure 6 The diagram shows one gate mark 16, but multiple gate marks 16 may also be provided. These are formed on the inner circumferential surface 15 of the through hole defining the guide body 11 and are shaped to protrude into the through hole of the guide body 11. When viewed in a direction perpendicular to the guide body 11, the outline shape of the guide body 11 defining the through hole (the outline shape of the inner circumferential surface 15) is formed to include one or more convex portions 18 that bulge radially outward beyond a perfect circle. Figure 5 In the example shown, there is one protrusion 18), and the gate mark 16 is disposed at the position of one or more of the protrusions 18 that form the through hole on the inner peripheral surface 15 of the through hole that defines the guide body 11.

[0031] The outline shape of the through hole (the outline shape of the inner circumferential surface 15) is defined. Besides an oval shape, for example, one or more trapezoidal shapes (or trapezoidal shapes with rounded corners) can be formed on a perfect circle as the shape of the convex portion; one or more small-diameter circular shapes can be formed on a perfect circle as the shape of the convex portion; one or more triangular shapes (or triangular shapes with rounded corners) can be formed on a perfect circle as the shape of the convex portion; one or more quadrilateral shapes (or quadrilateral shapes with rounded corners) can be formed on a perfect circle as the shape of the convex portion, etc., but not limited to these. The outline shape 20 of the through hole (the outline shape of the inner circumferential surface 15) is composed of a perfect circular portion 17 and one or more convex portions (convex parts) 18. Here, the direction perpendicular to the guide body 11 refers to the direction perpendicular to the extension surface of the ring retaining portion 14 of the guide body 11. Figure 2 (Vertical axis X shown). Furthermore, defining the outline shape of the through hole in the guide body 11 means defining the outline shape of the through hole at the central position of the inner peripheral surface 15 of the guide body 11 when viewed in the direction of the vertical axis X.

[0032] According to one embodiment of the present invention, a fishing line guide 10 and a fishing rod having the fishing line guide can be provided, which allows the installation of a guide ring on the guide body without removing the gate mark on the fishing line guide formed by injection molding. Since the gate mark removal process is not required, the existing process can be effectively simplified and low cost can be achieved. In addition, by effectively utilizing the previously removed gate mark, the bonding strength between the guide body and the guide ring can be improved.

[0033] In a fishing line guide 10 according to one embodiment of the present invention, when multiple gate marks 16 are formed, one or more protrusions 18 can be formed in proportion to the number of gate marks 16 formed. In this way, the gate marks 16 can be accommodated using the space between the guide body and the guide ring and are not visible from the outside. As a result, since a gate mark removal process is not required, existing processes can be effectively simplified and cost reduction can be achieved. In a fishing line guide 10 according to one embodiment of the present invention, when multiple gate marks 16 are formed, for example, in a... Figure 5 , 6 If the position of the gate mark 16 is 0 o'clock and is also considered as a clock, then the gate mark 16 can be formed at the positions of 0 o'clock and 6 o'clock, 0 o'clock, 4 o'clock and 8 o'clock, or 0 o'clock, 3 o'clock, 6 o'clock and 9 o'clock.

[0034] like Figure 7 As shown, in one embodiment of the fishing line guide 10, one or more protrusions 18 are crescent-shaped (in the illustrated example, two protrusions are each crescent-shaped). This allows the space between the guide body and the guide ring to accommodate the gate mark 16, making it invisible from the outside. Consequently, since a gate mark removal process is unnecessary, existing processes can be effectively simplified, and cost reduction can be achieved. Furthermore, in one embodiment of the fishing line guide 10, one or more protrusions 18 may also be triangular, quadrilateral, trapezoidal, or circular in shape.

[0035] like Figure 5 As shown in (b), in one embodiment of the fishing line guide 10, the gate mark 16 is formed with a maximum height (D1) ranging from 0.1 mm to 1.0 mm. The reason for this is that if the height of the gate mark is too small, it is difficult to achieve an anchoring effect; on the other hand, if the height of the gate mark is too large, the gap between the ring and the support will increase, leading to a decrease in adhesion. Thus, the gate mark 16 can be accommodated in the space between the guide body and the guide ring and is not visible from the outside.

[0036] As mentioned above, Figure 5 (c) is based on Figure 5 (a) is a cross-sectional view of the ring retaining portion 14 of the guide body 11 observed in ZZ section, but in the fishing line guide 10 according to one embodiment of the present invention, in a direction perpendicular to the guide body 11 ( Figure 2 Observed along the vertical axis X, the gate mark 16 is formed at the center of the inner circumferential surface 15 that defines the through hole of the guide body 11 (in the direction of the vertical axis X). Figure 5 The position shown in (c) is in this Figure 5(c) Position AC shown) or not at the two ends of the inner circumferential surface ( Figure 5 (c) Positions A1 and A2 are the overlapping positions of the two ends. In this way, no gate marks will be visible on the surface when bonding the ring, resulting in a beautiful appearance.

[0037] Maximum height (L1), maximum height (D1) as follows Figure 5 (b) and Figure 7 As shown, however, in one embodiment of the fishing line guide 10, the maximum height (L1) of one or more protrusions 18 is greater than or equal to the maximum height (D1) of the gate mark. Here, the maximum height (L1) of the one or more protrusions 18 is formed, for example, in the range of 0.1 mm to 1.0 mm. In this way, the gate mark 16 can be accommodated using the space between the guide body and the guide ring and is not visible from the outside. As a result, since the gate mark removal process is not required, the existing process can be effectively simplified and cost reduction can be achieved.

[0038] like Figure 3 As shown, in a fishing line guide 10 according to one embodiment of the present invention, a guide ring 12 is formed such that a gap (adhesive (adhesive layer) 21 enters this gap) is formed between its outer peripheral surface 12b and the inner peripheral surface 15 of the ring holding portion 14 of the guide body 11, and a sprue mark 16 is formed between the outer peripheral surface 12b of the guide ring 12 and the inner peripheral surface 15 of the ring holding portion 14 of the guide body 11. Thus, the sprue mark 16 can be accommodated using the space between the guide body and the guide ring and is not visible from the outside. As a result, since a sprue mark removal process is not required, existing processes can be effectively simplified and cost reduction can be achieved.

[0039] In one embodiment of the present invention, the fishing line guide 10 further includes an adhesive disposed in the gap. This allows the guide ring 12 to be bonded and fixed to the ring retaining portion 14 of the guide body 11.

[0040] One embodiment of the present invention relates to a fishing rod 1 configured to include at least one fishing line guide 10 as described above. According to the fishing rod 1 including the fishing line guide 10 according to one embodiment of the present invention, a guide ring can be installed on the guide body without removing gate marks from the fishing line guide formed by injection molding. Since the gate mark removal process is unnecessary, existing processes can be effectively simplified and costs reduced. Furthermore, by effectively utilizing the previously removed gate marks, the bonding strength between the guide body and the guide ring can be improved. A fishing rod including the fishing line guide is also provided.

[0041] The dimensions, raw materials, and configurations of the constituent elements described in this specification are not limited to those explicitly stated in the embodiments. These constituent elements can be modified within the scope of this invention to have arbitrary dimensions, raw materials, and configurations. Furthermore, constituent elements not explicitly stated in this specification may be added to the described embodiments, and some constituent elements described in each embodiment may be omitted.

Claims

1. A fishing line guide, mounted on a fishing rod, characterized in that, The fishing line guide includes: a guide body having a through hole; a guide ring embedded in the through hole of the guide body; and a gate mark formed on the inner circumferential surface defining the through hole of the guide body, and formed to protrude into the through hole of the guide body. When viewed in a direction perpendicular to the guide body, the outline shape of the guide body defining the through hole is formed to include one or more convex portions that bulge radially outwards beyond a perfect circle. The gate mark is positioned on one or more of the protrusions that form the through hole on the inner circumferential surface of the guide body that defines the through hole.

2. The fishing line guide according to claim 1, characterized in that, When multiple gate marks are formed, one or more of the protrusions are formed in accordance with the number of gate marks formed.

3. The fishing line guide according to claim 1, characterized in that, One or more of the convex portions are crescent-shaped.

4. The fishing line guide according to claim 1, characterized in that, The maximum height D1 of the gate mark is in the range of 0.1 mm to 1.0 mm.

5. The fishing line guide according to claim 1, characterized in that, Viewed from a direction perpendicular to the guide body, the gate mark is formed at the center of the inner circumferential surface that defines the through hole of the guide body, or at a position that does not overlap with the two ends of the inner circumferential surface.

6. The fishing line guide according to claim 1, characterized in that, The maximum height L1 of one or more of the convex portions is greater than or equal to the maximum height D1 of the gate mark.

7. The fishing line guide according to claim 1, characterized in that, The guide ring is bent in such a way that a gap is formed between its outer peripheral surface and the inner peripheral surface of the guide body, and the gate mark is formed between the outer peripheral surface of the guide ring and the inner peripheral surface of the guide body.

8. The fishing line guide according to claim 7, characterized in that, It also contains an adhesive disposed in the gap.

9. A fishing rod, characterized in that, It has at least one fishing line guide as described in any one of claims 1 to 8.

Citation Information

Patent Citations

  • Fishing line guide and fishing rod as well as guide frame

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  • Multilayer transmission line plate and semiconductor package

    JP2024003428A