JP6921040B2 - A fishing rod with a rod body to which mounting parts are attached - Google Patents

Description

The present invention relates to a fishing rod having a rod body to which attachment parts are attached.

A fishing rod in which mounting parts such as a fishing line guide and a reel seat are attached to a rod body is known. Conventionally, the mounting parts are mounted on the rod body by a thread or a resin sheet.

Fishing rods having mounting parts attached to the rod body by a resin sheet are, for example, Jikkenhei 2-26474 (Patent Document 1), International Publication No. 2018/042856 (Patent Document 2), and International Publication No. 2018. / 061345 (Patent Document 3). The resin sheet described in these patent documents is a prepreg sheet obtained by impregnating a matrix resin containing a thermosetting resin with reinforcing fibers. At the time of mounting, the prepreg sheet is wound around the mounting portion of the mounting component and the rod body, and the matrix resin of the prepreg sheet wrapped around the rod body is cured to fix the mounting component to the rod body. In this way, the mounting component is mounted on the rod body via the mounting portion by the fiber reinforced resin layer formed by curing the prepreg sheet.

A coating layer made of a resin material is provided on the fiber-reinforced resin layer for mounting the mounting component in order to improve decorativeness and weather resistance. When using a fishing rod, stress acts on the fishing line guide and reel sheet from the rod body, and the part of the coating layer where the stress is concentrated may be destroyed.

In the mounting structure described in Patent Document 1, the prepreg sheet cut into a trapezoidal shape is wound around the legs of the fishing line guide and the rod body, and the prepreg sheet wound around the rod body is hardened so that the fishing line guide can be used as a rod. It is fixed to the body. According to Patent Document 1, the fiber-reinforced resin layer obtained by curing a prepreg sheet having this trapezoidal shape is formed so as to have a smooth curved surface on the outer periphery of the rod body, so that damage due to stress concentration can be prevented. Is described.

Jikkenhei No. 2-026444 International Publication No. 2018/042856 International Publication No. 2018/061345

The curved fiber-reinforced resin layer generated from the trapezoidal prepreg sheet becomes thinner in the radial direction of the rod body at the tip of the foot of the fishing line guide, which is an attachment part, so that it is sufficiently fixed near the tip of the foot. Has no power. When the rod body bends when the fishing rod is used, the tip of the foot of the fishing line guide tends to rise from the surface of the rod body. Therefore, in the mounting structure described in Patent Document 1, the coating layer is destroyed near the tip of the foot. There is a risk.

On the other hand, since the fiber-reinforced resin layer formed from the rectangular prepreg sheet is formed so that the thickness in the radial direction becomes substantially uniform at an arbitrary position in the axial direction, the influence on the bending of the rod body is large. The rod body is precisely designed with parameters such as its material, diameter, and thickness so that the desired bending profile is achieved. In order to suppress the deviation from the desired bending profile, improvement is required in the mounting structure of the fishing line guide to suppress the influence on the bending of the rod body.

One of the objects of the present invention is to firmly fix the mounting parts to the rod body by the fiber reinforced resin layer and suppress the influence of the fiber reinforced resin layer on the bending of the rod body. Other objectives of the present invention will become apparent by reference to the entire specification.

The fishing rod according to one embodiment includes a rod body extending in the front-rear direction along the central axis, a mounting component having a mounting portion mounted on the outer peripheral surface of the rod body at a first position in the circumferential direction around the central axis, and the above. A fiber reinforced resin layer provided around the rod body so as to cover the mounting portion is provided. The fiber-reinforced resin layer extends from a first portion covering the rod body over the entire length in the circumferential direction around the central axis and from the rear end of the first portion in the axial direction to the rear in the axial direction. It has a second portion configured to extend less than 180 ° clockwise from the first position in the circumferential direction and less than 180 ° counterclockwise.

In one embodiment, the first portion is configured such that its axial length La satisfies the relationship between the axial length Ld of the mounting portion and Ld / 2 ≦ La.

In one embodiment, the second portion, in side view, has its trailing end convex rearward in the section between the second position rotated 90 ° clockwise from the first position and the first position. In addition to being shaped, it is configured to be convex forward in the section between the second position and the third position rotated 180 ° clockwise from the first position.

In one embodiment, the fiber reinforced resin layer is formed by curing a prepreg sheet wound around the rod body.

In one embodiment, the fiber-reinforced resin layer is formed by curing a first prepreg sheet wound around the rod body and a second prepreg sheet wound outside the first prepreg sheet. NS.

In one embodiment, the first prepreg sheet is configured to stretch 90 ° clockwise and 90 ° counterclockwise from the first position in the circumferential direction.

In one embodiment, the fiber reinforced resin layer has a first fiber reinforced resin layer obtained by curing the first prepreg sheet and a second fiber reinforced resin layer obtained by curing the second prepreg sheet.

In one embodiment, the fiber reinforced resin layer contains reinforcing fibers having an orientation angle smaller than 90 ° with respect to the axial direction.

In one embodiment, the mounting component is a fishing line guide.

In one embodiment, the mounting component is a reel seat.

According to one embodiment of the present invention, the attachment component can be firmly fixed to the rod body by the fiber reinforced resin layer, and the influence of the fiber reinforced resin layer on the bending of the rod body can be suppressed.

It is a figure which shows the fishing rod by one Embodiment of this invention. It is a perspective view which shows by enlarging the vicinity of the fishing line guide of the fishing rod shown in FIG. It is a right side view which shows by enlarging the vicinity of the fishing line guide of the fishing rod shown in FIG. It is a top view which shows by enlarging the vicinity of the fishing line guide of the fishing rod shown in FIG. It is sectional drawing which shows the cross section which cut the fishing rod shown in FIG. 2 along the line I-I. It is a perspective view which shows the vicinity of the fishing line guide of the fishing rod by another embodiment of this invention enlarged and schematicly. It is a right side view which shows by enlarging the vicinity of the fishing line guide of the fishing rod shown in FIG. It is a top view which shows by enlarging the vicinity of the fishing line guide of the fishing rod shown in FIG. It is sectional drawing which shows the cross section which cut | cut the fishing rod shown in FIG. 6 along the line II-II.

Hereinafter, various embodiments of the present invention will be described with reference to the drawings as appropriate. The same reference numerals are given to the components common to each drawing. It should be noted that each drawing is not always drawn to the correct scale for convenience of explanation.

FIG. 1 is a diagram showing an embodiment of a fishing rod according to the present invention. As shown in the figure, the fishing rod 1 according to the embodiment of the present invention includes an elongated rod body 2 extending along a central axis, a reel R attached to the rod body 2 via a reel sheet 9, and a rod body 2. The attached fishing line guide 10 is provided. In the illustrated embodiment, each of the reel seat 9 and the fishing line guide 10 corresponds to an attachment component attached to the outer peripheral surface of the rod body.

The rod body 2 is configured by connecting, for example, a main rod 3, a middle rod 5, a tip rod 7, and the like. Each of these rods is, for example, spliced in parallel. The original rod 3, the middle rod 5, and the tip rod 7 can be joined by a swing method, a reverse parallel connection method, an inlay method, or any other known joint method. The rod body 2 may be composed of a single rod body.

The original rod 3, the middle rod 5, and the tip rod 7 are made of, for example, a tubular body made of fiber reinforced resin. The 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 metal, and heating and curing the prepreg sheet. As the reinforcing fibers contained in the prepreg sheet, for example, carbon fibers, glass fibers, and any other known reinforcing fibers can be used. As the matrix resin contained in the prepreg sheet, a thermosetting resin such as an epoxy resin can be used. After the prepreg sheet is cured, the core metal is decentered. Further, the outer surface of the tubular body is appropriately polished. Each rod body may be configured in a solid state.

In the illustrated embodiment, the main rod 3, the middle rod 5, and the tip rod 7 are provided with a plurality of fishing line guides 10 (fishing line guides 10A to 10D) for guiding the fishing line to be fed from the reel R mounted on the reel sheet 9. Has been done. More specifically, the original rod 3 is provided with one fishing line guide 10A, the middle rod 5 is provided with three fishing line guides 10B, and the tip rod 7 is provided with three fishing line guides 10C. A top guide 10D is provided at the tip of the tip rod 7. An arbitrary number of fishing line guides 10 are attached to the rod body 2. In the illustrated example, eight fishing line guides including the top guide 10D are attached to the rod body 2, but the number of fishing line guides attached to the rod body 2 may be nine or more, or seven. It may be as follows.

In the illustrated embodiment, the reel sheet 9 is attached to the outer peripheral surface of the original rod 3. The reel seat 9 is an arbitrary reel seat to which the reel R can be attached.

Next, with reference to FIGS. 2 to 5, a structure for attaching the fishing line guide 10B to the middle rod 5 and a method for attaching the fishing line guide 10B will be described. FIG. 2 is a perspective view for explaining a method of attaching the fishing line guide 10B to the middle rod 5, and FIG. 3 is a right side view which roughly shows the vicinity of the fishing line guide 10B of the fishing rod 1 in an enlarged manner. FIG. 4 is an enlarged plan view of the vicinity of the fishing line guide 10B of the fishing rod 1, and FIG. 5 is a cross section schematically showing a cross section of the fishing rod 1 cut along the line I-I of FIG. It is a figure. When referring to the front-back direction of the fishing rod 1 (middle rod 5) and the fishing line guide 10B, the front-back direction of FIG. 2 is used as a reference. That is, the tip side of the middle rod 5 is the front side, and the base end side is the rear side. When referring to the vertical direction and the horizontal direction of the fishing rod 1 (middle rod 5) and the fishing thread guide 10B, the vertical direction and the horizontal direction of FIG. 5 are used as a reference.

As shown in these figures, the fishing line guide 10B has a foot 10a extending to the tip 12 in the direction (axial direction) of the central axis A of the center rod 5, and the fishing line guide 10B has a foot 10a extending through the foot 10a. It is attached to the outer peripheral surface of the middle rod 5. In the illustrated embodiment, the foot 10a is configured to have a length Ld in the axial direction along the central axis A. Since the tip 12 is the rear end of the foot 10a, the tip 12 of the foot 10a may be referred to as the rear end 12 in the present specification. The foot 10a of the fishing line guide 10B is an example of a mounting portion of a mounting component.

The fishing line guide 10B is attached to the outer peripheral surface of the middle rod 5 so that the foot 10a is arranged at the first position in the circumferential direction around the central axis A. For example, the fishing line guide 10B is attached to the outer peripheral surface of the rod body 5 so that the center portion 11g, which is the central portion of the foot 10a in the circumferential direction, is arranged at the first position in the circumferential direction. Since the fishing line guide 10B is attached to the middle rod 5 at the first position, the above "first position" may be referred to as the "attachment position" of the fishing line guide 10B in the present specification. In one embodiment, the attachment position (first position) of the fishing line guide 10B with respect to the center rod 5 is a position directly above the central axis A.

In the present specification, the position rotated 90 ° clockwise from the first position in the circumferential direction around the central axis A is referred to as the second position, and is rotated 180 ° clockwise (or counterclockwise) from the first position. The position may be referred to as a third position, and a position rotated 90 ° counterclockwise from the first position may be referred to as a fourth position. In other words, in the circumferential direction around the central axis A, when viewed from the rear to the front, the positions rotated 90 °, 180 °, and 270 ° clockwise with respect to the first position are the second position and the second position, respectively. It may be called the 3rd position and the 4th position.

The foot 10a of the fishing line guide 10B has a top surface 11a, a bottom surface 11b facing the top surface 11a, and side surfaces 11c and 11d connecting the top surface 11a and the bottom surface 11b in a cross-sectional view. The fishing line guide 10B is attached to the middle rod 5 so that the bottom surface 11b of the foot 10a is in contact with the outer peripheral surface of the middle rod 5. The bottom surface 11b of the foot 10a is in contact with the outer peripheral surface of the middle rod 5 in whole or in part. In the illustrated embodiment, since the curvature of the bottom surface 11b is substantially the same as the curvature of the outer peripheral surface of the middle rod 5, almost all of the bottom surface 11b is in contact with the outer peripheral surface of the middle rod 5. When the curvature of the bottom surface 11b is different from the curvature of the outer peripheral surface of the middle rod 5, a part of the bottom surface 11b comes into contact with the outer peripheral surface of the middle rod 5. Since the bottom surface 11b of the foot 10a is in contact with the outer peripheral surface of the middle rod 5, a filling member as described in, for example, Jikkendai 2-026474 is not provided between the foot 10a and the middle rod 5. However, if the curvature of the bottom surface 11b is different from the curvature of the outer peripheral surface of the middle rod 5, the resin may intervene between the bottom surface 11b and the outer peripheral surface of the middle rod 5 due to the resin flow from the prepreg sheet described later. be.

The foot 10a is cut out at a portion where the upper surface 11a and the side surface 11c are connected and at a portion where the upper surface 11a and the side surface 11c are connected. In the illustrated embodiment, a notch surface 11e and a notch surface 11f are formed at the left and right ends of the upper surface 11a of the foot 10a, respectively. The cutout surface 11e is a surface that connects the upper surface 11a and the side surface 11c. The cutout surface 11f is a surface that connects the upper surface 11a and the side surface 11d. The upper surface 11a is connected to the notch surface 11e at its left end E1 and is connected to the notch surface 11f at its right end E2. As shown in FIG. 3, the left end E1 of the upper surface 11a is located at one end of the upper surface 11a in the circumferential direction around the central axis A, and the right end E2 of the upper surface 11a is the other end of the upper surface 11a in the circumferential direction. Located on the edge of. The left end E1 of the upper surface 11a is an example of the first edge, and the right end E2 of the upper surface 11a is an example of the second edge. The side surface 11c is connected to the notched surface 11e at its upper end E3, and the side surface 11d is connected to the notched surface 11e at its upper end E4.

In one embodiment, at least one of the cutout surface 11e and the cutout surface 11f may be a part of the upper surface 11a. That is, the region including the notched surface 11e and the notched surface 11f may be referred to as the upper surface 11a. In this case, the upper end E3 of the side surface 11c coincides with the left end (first edge) of the upper surface 11a, and the upper end E4 of the side surface 11d coincides with the right end (second edge) of the upper surface 11a.

A fiber-reinforced resin layer 20 and a coating layer 40 are provided on the outside of the foot 10a of the fishing line guide 10B. The terms "outside" and "inside" as used herein mean "outside" and "inside" in the radial direction of the center rod 5, unless the context requires a different meaning.

The fiber reinforced resin layer 20 is provided around the center rod 5 so as to cover the foot 10a over the entire length in the axial direction along the central axis A. In one embodiment, the number of turns of the fiber reinforced resin layer 20 is set to 1 ply or more for reliable fixing of the fishing line guide 10B, and less than 2 plies for weight reduction.

In one embodiment, one end 20a of the fiber reinforced resin layer 20 is 90 ° counterclockwise from the mounting position of the fishing line guide 10B in the circumferential direction around the central axis A, as shown in FIG. It is provided so as to be at a position of more than 180 °. In the illustrated embodiment, one end 20a of the fiber reinforced resin layer 20 is 90 ° + θ1a (0 ≦ θ1a <90 °) in the circumferential direction from the mounting position of the fishing line guide 10B (that is, from the center portion 11g). It is in the position of.

In one embodiment, the other end 20b of the fiber reinforced resin layer 20 is on the side opposite to one end 20a with respect to the attachment position (center portion 11g) of the fishing line guide 10B in the circumferential direction around the central axis A. .. In one embodiment, the other end 20b of the fiber reinforced resin layer 20 is located at a position of 90 ° or more and less than 180 ° clockwise from the attachment position of the fishing line guide 10B. In the illustrated embodiment, the other end 20b of the fiber reinforced resin layer 20 is located at a position of 90 ° + θ1b (0 ≦ θ1b <90 °) clockwise from the mounting position in the circumferential direction. θ1b may have the same angle as θ1a or may have a different angle. In the illustrated embodiment, since θ1a = θ1b, the other end 20b of the fiber reinforced resin layer 20 is in the circumferential direction around the central axis A with respect to the mounting position (center portion 11g) of the fishing line guide 10B. , One end is in a position symmetrical to 20a. By arranging the one end 20a and the other end 20b of the fiber reinforced resin layer 20 at positions symmetrical with respect to the mounting position of the fishing line guide 10B in the circumferential direction around the central axis A in this way, the center rod 5 It is possible to prevent the center of gravity from being biased to the left or right with respect to the central axis A.

As described above, the position of one end 20a of the fiber reinforced resin layer 20 is 90 ° + θ1a counterclockwise from the mounting position of the fishing line guide 10B, and the position of the other end 20b is 90 ° + θ1b clockwise from the mounting position. By setting the position, the number of turns of the fiber reinforced resin layer 20 can be 1.5 plies or more and less than 2.0 plies.

When the fishing rod 1 is used, a force acts on the fishing line guide 10B from the fishing line in the direction of swinging the fishing line guide 10B around the central axis A of the rod body. Due to this force, the left end and the right end of the bottom surface 11b of the foot 10a tend to rise from the outer peripheral surface of the middle rod 5. The position of one end 20a of the fiber reinforced resin layer 20 shall be 90 ° + θ1a counterclockwise from the mounting position of the fishing line guide 10B, and the position of the other end 20b shall be 90 ° + θ1b clockwise from the mounting position. As a result, when the foot 10a is about to be lifted by the force from the fishing line, the portion near one end 20a and the portion near the other end 20b of the fiber reinforced resin layer 20 serve as hooks, and the left end and the right end of the foot 10a are lifted. Can be suppressed.

As clearly shown in FIGS. 3 and 4, the fiber reinforced resin layer 20 has a first portion 21 that covers the center rod 5 over the entire length in the circumferential direction around the central axis A, and the first portion 21. It has a second portion 22 extending rearward in the axial direction A from the rear end. The second portion 22 is configured to extend by less than 180 ° clockwise from the attachment position of the fishing line guide 10B in the circumferential direction around the central axis A and extend less than 180 ° counterclockwise. That is, the second portion 22 is configured to cover only a part of the middle rod 5 in the circumferential direction.

In one embodiment, the first portion 21 of the fiber reinforced resin layer 20 is configured to have a length La in the axial direction along the central axis A. In one embodiment, the first portion 22 is configured such that its axial length La satisfies the relationship between the axial length Ld of the foot 10a and Ld / 2 ≦ La.

In one embodiment, the second portion 22 of the fiber reinforced resin layer 20 has a base end portion 22a connected to the rear end of the first portion 21 and a tip portion extending rearward from the rear end of the base end portion 22a. It has 22b and. In one embodiment, the second portion 22 is configured to have a curved rear end face 23. The rear end surface 23 of the second portion 22 has a rear end surface 23a of the base end portion 22a and a rear end surface 23b of the tip end portion 22b.

In one embodiment, the proximal end portion 22a extends less than 180 ° clockwise from the attachment position (first position) of the fishing line guide 10B in the circumferential direction around the central axis A and only less than 180 ° counterclockwise. It is configured to stretch. In other words, the proximal end portion 22a extends clockwise from the first position to the third position to a predetermined position between the first position and the third position in the circumferential direction around the central axis A. It extends from the first position to the third position in the counterclockwise direction to a predetermined position between the first position and the third position. The length of the base end portion 22a in the circumferential direction changes depending on the position in the axial direction. For example, as most clearly shown in the right side view of FIG. 3, the base end portion 22a is located at a position close to the first portion 21 in the axial direction along the central axis A (front end of the base end portion 22a). Is extended to a position slightly beyond the second position at a position separated from the first portion 21 (rear end of the base end portion 22a). When viewed from the left side surface, the base end portion 22a extends to a position slightly beyond the fourth position at a position separated from the first portion 21 (rear end of the base end portion 22a). In one embodiment, the proximal end 22a is configured such that, in side view, the posterior end face 23a is a curved surface that is convex forward, as shown in FIG. The rear end surface 23a extends from the second position to the third position in the circumferential direction. Therefore, the rear end surface 23 has a shape that is convex forward between the second position and the third position in the circumferential direction.

In one embodiment, the tip portion 22b is configured to extend from the first position in the circumferential direction around the central axis A by less than 90 ° in the clockwise direction and also in the counterclockwise direction by less than 90 °. In other words, the tip portion 22b extends clockwise from the first position to the second position to a predetermined position between the first position and the second position in the circumferential direction around the central axis A. It extends from the first position to the second position in the counterclockwise direction to a predetermined position between the first position and the second position. The length of the tip portion 22b in the circumferential direction changes depending on the position in the axial direction. For example, as shown most clearly in the right side view of FIG. 3, the tip portion 22b has a position closer to the base end portion 22a in the axial direction along the central axis A (the front end of the tip portion 22b). While it extends close to the two positions, it extends by a slight length in the circumferential direction at a position separated from the base end portion 22a (the rear end of the tip end portion 22b). When viewed from the left side, the tip portion 22b extends close to the fourth position at a position close to the proximal end portion 22a (front end of the distal end portion 22b), while being separated from the proximal end portion 22a. (The rear end of the tip portion 22b) is extended by a slight length in the circumferential direction. .. In one embodiment, the tip 22b is configured such that the rear end face 23b is a rearwardly convex curved surface in side view, as shown in FIG. The rear end surface 23b extends from the first position to the second position in the circumferential direction. Therefore, the rear end surface 23 has a shape that is convex rearward between the first position and the second position in the circumferential direction.

In one embodiment, the length Le between the tip 12 of the foot 10a and the rear end of the proximal end 22a is defined to satisfy d / 2 <a≤Ld + Le. In one embodiment, the length Le can take any value within the range of 0 mm ≦ Le ≦ 6 mm. In another embodiment, the length Le can take any value within the range of 1 mm ≦ Le ≦ 4 mm. The fact that Le includes the range of 0 mm means that the base end portion 22a can be omitted. That is, in one embodiment, the base end portion 22a can be omitted. In this case, the tip end portion 22b is connected to the first portion 21 without passing through the base end portion 22a.

In one embodiment, the length Lc between the tip 12 of the foot 10a and the rear end of the tip 22b (that is, the rear end of the fiber reinforced resin layer 20) is an arbitrary value within the range of 1 mm ≦ Lc ≦ 7 mm. Can be taken. In one embodiment, the length Lc can take any value within the range of 2 mm ≦ Lc ≦ 5 mm. The length Lb of the fiber reinforced resin layer 20 in the axial direction along the central axis A satisfies the relationship of Lb = Lc + Ld.

As described above, the fishing line guide 10B is attached to the outer peripheral surface of the middle rod 5 by the fiber reinforced resin layer 20 via the foot 10a. In FIG. 5, each member is drawn so that there is a gap between the fiber reinforced resin layer 20 and the outer surface of the inner rod 5 for easy viewing of each member, but in reality, the fiber reinforced resin layer 20 is drawn. The resin layer 20 is in close contact with the outer surface of the inner rod 5.

The coating layer 40 is a resin-made coating film provided on the outside of the fiber-reinforced resin layer 20 so as to cover the fiber-reinforced resin layer 20. As shown in the figure, the coating layer 40 may be provided so as to cover the entire fiber reinforced resin layer 20. In FIGS. 3 to 5, the coating layer 40 is not shown for convenience of explanation.

The coating layer 40 is formed of various resin materials such as, for example, epoxy, urethane, acrylic, or UV curable resin (eg, urethane acrylate, acrylic resin acrylate, epoxy acrylate). The material of the coating layer 40 is not limited to those exemplified in the present specification, and various resins can be used as the material. The coating layer 40 may be transparent or may be colored. As shown in FIG. 2, the coating layer 40 may be configured so that the length in the axial direction along the central axis A is constant regardless of the position in the circumferential direction. The rear end face of the coating layer 40 may be configured to be curved along the rear end face of the fiber reinforced resin layer 20.

As shown in FIG. 5, the gap G1 is defined by the side surface 11c of the foot 10a, the outer peripheral surface of the middle rod 5, and the inner peripheral surface of the fiber reinforced resin layer 20. Further, the gap G2 is defined by the side surface 11d of the foot 10a, the outer peripheral surface of the middle rod 5, and the inner peripheral surface of the fiber reinforced resin layer 20. When the prepreg sheet 20s, which will be described later, is heated, the matrix resin contained in the prepreg sheet 20s flows and flows into the gap G1 and the gap G2. Therefore, at least a part of the gap G1 and the gap G2 is filled with the resin 20c derived from the matrix resin contained in the prepreg sheet 20s.

Subsequently, an example of a method of attaching the fishing line guide B10 to the middle rod 5 will be described. When attaching the fishing line guide B10 to the middle rod 5, first, the rod body 5, the fishing line guide 10B, and the prepreg sheet 20s are prepared.

As described above, the rod body 5 is created by heating and curing the prepreg sheet wound around the core metal.

Any fixed guide can be used as the fishing line guide 10B. The fishing line guide 10B may be a single foot type or a double foot type as shown.

The prepreg sheet 20s is a prepreg sheet in which reinforcing fibers are impregnated with a matrix resin. The reinforcing fibers contained in the prepreg sheet 20s are, for example, carbon fibers, glass fibers, or liquid crystal polyester fibers. The matrix resin is, for example, a thermosetting resin. Thermosetting resin refers to a resin that irreversibly cures due to a chemical reaction when heated. Examples of the thermosetting resin that can be used as the matrix resin for the prepreg sheet 20s include urea resin, melamine resin, phenol resin, epoxy resin, unsaturated polyester resin, alkyd resin, and urethane resin. The thickness of the prepreg sheet 20s is, for example, 20 μm to 300 μm. As the prepreg sheet 20s, an appropriate commercially available product can be used.

The resin content of the matrix resin contained in the prepreg sheet 20s is, for example, 20 wt% to 50 wt% when the total mass of the reinforcing fibers and the matrix resin in the prepreg sheet 20s is 100 wt%.

The reinforcing fibers contained in the prepreg sheet 20s may be aligned in a direction forming a predetermined angle with respect to the axial direction along the central axis A of the rod body 2. For example, the reinforcing fibers contained in the prepreg sheet 20s may be aligned at an inclination of 45 ° with respect to the axial direction along the central axis A of the rod body 2. The reinforcing fibers contained in the prepreg sheet 20s may be knitted in a plain weave shape. The reinforcing fiber contained in one sheet 20s may be a non-woven fabric.

The matrix resin contained in the prepreg sheet 20s is a composition containing a thermosetting resin as a main component. This resin composition may contain known additives. When the resin composition contains a thermosetting resin and an additive, the ratio of the mass of the thermosetting resin to the total mass is, for example, 50, when the total mass of the resin composition is 100%. % Or more, 60% or more, 70% or more, 80% or more, or 90% or more.

In order to attach the fishing line guide 10B to the rod body 5, as shown in FIG. 2, the foot 10a of the fishing line guide 10B is placed on the outer peripheral surface of the middle rod 5. Next, one end of the prepreg sheet 20s is placed on the outer peripheral surface of the middle rod 5, and the prepreg sheet 20s is wound by a predetermined number of plies so as to surround the foot 10a and the outer peripheral surface of the middle rod 5. In one embodiment, as shown in FIG. 3, the prepreg sheet 20s is started to be wound counterclockwise from the mounting position (center portion 11g) of the fishing line guide 10B at a position of 90 ° + θ1a, and the mounting position is concerned. The winding is completed clockwise at the position of 90 ° + θ1b. The positions of the winding start and winding end are adjusted as appropriate. The number of turns of the prepreg sheet 20s is not limited to that specified in the present specification. The prepreg sheet 20s is wound by an arbitrary number of plies. For example, the prepreg sheet 20s may be wound in two or more plies.

The prepreg sheet 20s is wound while applying an axially rearward tension to the portion wound at the first position. Due to this axially rearward tension, the prepreg sheet 20s is deformed so as to project rearward in the vicinity of the first position in the circumferential direction. The portion of the prepreg sheet 20s that is deformed so as to project rearward becomes the second portion 22 of the fiber reinforced resin layer 20 after the curing treatment.

By the above steps, the foot 10a is covered with the prepreg sheet 20s together with the rod body 5. When the prepreg sheet 20s is wound around the middle rod 5, a gap corresponding to the gap G1 is generated on the left side of the foot 10a, and a gap corresponding to the gap G2 is generated on the right side of the foot 10a.

Next, by heating the wound body in which the prepreg sheet 20s is wound around the rod body 5, the matrix resin contained in the prepreg sheet 20s flows, and then the matrix resin is cured to form the fiber reinforced resin layer 20. It is formed. The fishing line guide 10B is fixed to the rod body 5 by the fiber reinforced resin layer 20.

The wound body is taken out of the heating furnace after heating for a predetermined time and cooled at room temperature for a predetermined time. After the wound body has been sufficiently cooled, a coating layer for improving weather resistance or for enhancing decorativeness is formed so as to cover the fiber reinforced resin layer 20 formed on the wound body. May be good.

The winding body can be heated by using a known heating furnace. For example, by putting the wound body in a heating furnace kept at a predetermined temperature for a predetermined time, the heating required for curing the matrix resin contained in the prepreg sheet 20s is performed. The temperature of the heating furnace is, for example, 70 to 170 ° C., 80 to 160 ° C., 85 to 150 ° C., or 90 to 120 ° C., but heating is performed at a temperature other than these depending on the curing temperature of the matrix resin. May be good. The heating time of the winding body in the heating furnace is, for example, 5 minutes to 3 hours, 15 minutes to 2.5 hours, or 30 minutes to 2 hours, but the winding body is heated for a heating time other than these. You may. When the winding body is heated, a tightening tape may be wound around the winding body so that the prepreg sheet 20s wound around the middle rod 5 does not move.

When the wound body is heated, the matrix resin contained in the prepreg sheet 20s flows and flows into the gap G1 and the gap G2. As a result, at least a part of the gap G1 and the gap G2 is filled with the resin 20c flowing from the prepreg sheet 20s. The resin 20c that fills the gap G1 and the gap G2 allows the fishing line guide 10B to be more firmly attached to the middle rod 5.

Subsequently, a fishing rod according to another embodiment of the present invention will be described with reference to FIGS. 6 to 9. In the embodiment shown in FIGS. 6 to 9, the fishing line guide 10B is fixed to the middle rod 5 by the first fiber reinforced resin layer 120 and the second fiber reinforced resin layer 130 instead of the fiber reinforced resin layer 20. This is different from the embodiment shown in FIG.

In the embodiment shown in FIGS. 6 to 9, a first fiber reinforced resin layer 120, a second fiber reinforced resin layer 130, and a coating layer 40 are provided on the outside of the foot 10a of the fishing line guide 10B. Has been done.

The first fiber reinforced resin layer 120 is provided around the center rod 5 so as to cover the foot 10a over the entire length in the axial direction along the central axis A. The first fiber-reinforced resin layer 120 is configured to have an axial length of Lb, similarly to the fiber-reinforced resin layer 20.

As clearly shown in FIGS. 7 and 8, the first fiber reinforced resin layer 120 extends after the first portion 121 extending at a position overlapping the foot 10a in the axial direction and the first portion 121. It has a second portion 122 that extends rearward in the axial direction A from the end.

In one embodiment, the first portion 121 of the first fiber reinforced resin layer 120 extends clockwise from the first position (attachment position of the fishing line guide 10B) to the second position in the circumferential direction around the central axis A. , It extends counterclockwise from the first position to the fourth position. Therefore, as shown in FIG. 9, one end 120a of the first portion 121 of the first fiber reinforced resin layer 120 is arranged at a position 90 ° counterclockwise from the first position, and the other end 120b is It is arranged at a position of 90 ° clockwise from the first position.

In one embodiment, the second portion 122 of the first fiber reinforced resin layer 120 extends rearward from the base end portion 122a connected to the rear end of the first portion 121 and the rear end of the base end portion 122a. It has a tip portion 122b and. Similar to the first portion 121, the base end portion 122a extends clockwise from the first position (mounting position of the fishing line guide 10B) to the second position in the circumferential direction around the central axis A, and extends from the first position. It is configured to extend counterclockwise to the fourth position.

The tip portion 122b is configured to extend from the first position in the circumferential direction around the central axis A by less than 90 ° in the clockwise direction and by less than 90 ° in the counterclockwise direction. The length of the tip portion 122b in the circumferential direction changes depending on the position in the axial direction. For example, as most clearly shown in the right side view of FIG. 7, the tip portion 122b is at a position close to the base end portion 122a in the axial direction along the central axis A (the front end of the tip portion 122b). While it extends close to the two positions, it extends a slight length in the circumferential direction at a position separated from the base end portion 122a (the rear end of the tip end portion 122b). When viewed from the left side, the tip portion 122b extends close to the fourth position at a position close to the base end portion 122a (front end of the tip end portion 22b), while being separated from the base end portion 122a. (The rear end of the tip portion 122b) is extended by a slight length in the circumferential direction. .. In one embodiment, as shown in FIG. 7, the tip portion 122b is configured such that the rear end face 123 is a curved surface that is convex rearward in a side view.

In one embodiment, the axial length of the first fiber-reinforced resin layer 120 along the central axis A is Lb, and the length Lc between the tip 12 of the foot 10a and the rear end of the tip 122b. The length of the foot 10a in the axial direction along the central axis A is Ld, and the length between the tip 12 of the foot 10a and the rear end of the base end 122a is Le. The lengths of Lb to Le shown in FIGS. 6 to 9 may be the same as the lengths of Lb to Le shown in FIGS. 2 to 5.

A second fiber reinforced resin layer 130 is provided on the outside of the first fiber reinforced resin layer 120. The second fiber reinforced resin layer 130 is configured so that its axial length is Lf. The second fiber reinforced resin layer 130 may be provided so that its front end is at the same position as the front end of the foot 10a. In one embodiment, the second fiber reinforced resin layer 130 is provided so as not to overlap with the tip 12 of the foot 10b in the axial direction. In this case, the tip 12 of the foot 10b is covered by the first fiber reinforced resin layer 120, but is not covered by the second fiber reinforced resin layer 130. In one embodiment, the second fiber reinforced resin layer 130 is configured such that its axial length Lf satisfies the relationship between the axial length Ld of the foot 10a and Ld / 2 ≦ Lf <Ld. ..

In one embodiment, the number of turns of the second fiber reinforced resin layer 130 is set to 1 ply or more for reliable fixing of the fishing line guide 10B, and less than 2 plies for weight reduction. In one embodiment, one end 130a of the second fiber reinforced resin layer 130 is counterclockwise from the attachment position of the fishing line guide 10B in the circumferential direction around the central axis A, as shown in FIG. It is provided so as to be at a position of 90 ° or more and less than 180 °. In the illustrated embodiment, one end 20a of the fiber reinforced resin layer 20 is 90 ° + θ1a (0 ≦ θ1a <90 °) in the circumferential direction from the mounting position of the fishing line guide 10B (that is, from the center portion 11g). It is in the position of. In one embodiment, the other end 130b of the second fiber reinforced resin layer 130 is on the side opposite to one end 130a with respect to the attachment position (center portion 11g) of the fishing line guide 10B in the circumferential direction around the central axis A. be. In one embodiment, the other end 130b of the second fiber reinforced resin layer 130 is located at a position of 90 ° or more and less than 180 ° clockwise from the mounting position of the fishing line guide 10B. In the illustrated embodiment, the other end 130b of the second fiber reinforced resin layer 130 is located at a position of 90 ° + θ1b (0 ≦ θ1b <90 °) clockwise from the mounting position in the circumferential direction. θ1b may have the same angle as θ1a or may have a different angle.

When the fishing line guide B10 is attached to the middle rod 5 by the first fiber reinforced resin layer 120 and the second fiber reinforced resin layer 130, the rod body 5, the fishing line guide 10B, and the prepreg sheet are attached as shown in FIG. Prepare 120s and prepreg sheet 130s. The prepreg sheet 120s and the prepreg sheet 130s may be configured in the same manner as the prepreg sheet 20s. The prepreg sheet 130s is configured so that its axial length is equal to the axial length Lf of the first fiber reinforced resin layer 130.

In order to attach the fishing line guide 10B to the rod body 5, as shown in FIG. 6, the foot 10a of the fishing line guide 10B is placed on the outer peripheral surface of the middle rod 5. Next, one end of the prepreg sheet 120s is placed on the outer peripheral surface of the middle rod 5, and the prepreg sheet 120s is placed on the outer peripheral surface of the middle rod 5 by 0.5 ply so as to cover the legs 10a and the outer peripheral surface of the middle rod 5. Wind around. The positions of the winding start and winding end are adjusted as appropriate. The prepreg sheet 120s is wound while applying an axially rearward tension to the portion wound at the first position. Due to this axially rearward tension, the prepreg sheet 120s is deformed so as to project rearward in the vicinity of the first position in the circumferential direction. The portion of the prepreg sheet 120s that is deformed so as to project rearward becomes the tip portion 122b of the second portion 122 of the first fiber reinforced resin layer 120 after the curing treatment.

Next, the prepreg sheet 130s is wound around the outside of the prepreg sheet 120s by a predetermined number of plies. In one embodiment, as shown in FIG. 9, the prepreg sheet 130s is started to be wound counterclockwise from the mounting position (center portion 11g) of the fishing line guide 10B at a position of 90 ° + θ1a, and the mounting position is concerned. The winding is completed clockwise at the position of 90 ° + θ1b. The positions of the winding start and winding end are adjusted as appropriate.

Next, by heating the wound body in which the prepreg sheet 120s and the prepreg sheet 130s are wound around the rod body 5, the matrix resin contained in the prepreg sheet 120s and the prepreg sheet 130s flows and then cures. As a result, the first fiber reinforced resin layer 120 and the second fiber reinforced resin layer 130 are formed, respectively. The fishing line guide 10B is fixed to the rod body 5 by the first fiber reinforced resin layer 120 and the second fiber reinforced resin layer 130.

According to the above embodiment, the fiber reinforced resin layer 20 includes a first portion 21 that covers the center rod 5 over the entire length in the circumferential direction around the central axis A, and a foot 10a of the fishing line guide 10B in the circumferential direction. It has a second portion 22 that is configured to extend less than 180 ° clockwise and less than 180 ° counterclockwise from the existing first position. That is, the fishing line guide 10B can be firmly fixed to the middle rod 5 by the first portion 21 that covers the middle rod 5 over the entire length in the circumferential direction, while the second portion 22 is the middle rod 5 in the circumferential direction. It is configured to cover only a part of. As a result, the middle rod 5 is not partially covered with the fiber reinforced resin layer 20 in the circumferential direction at the position where it overlaps with the second portion 22 in the axial direction. Therefore, it is possible to suppress the influence of the fiber reinforced resin layer for attaching the fishing line guide 10B to the middle rod 5 on the bending of the middle rod 5.

According to the above embodiment, since the rear end surface 23a of the base end portion 22a of the second portion 22 is configured to be a curved surface that is convex forward, the middle rod 5 exposed from the second portion 22. The area of the outer peripheral surface of the can be increased. Thereby, the influence of the fiber reinforced resin layer for attaching the fishing line guide 10B to the middle rod 5 on the bending of the middle rod 5 can be further suppressed.

According to the above embodiment, since the rear end surface 23b of the tip portion 22b of the second portion 22 is configured to be a curved surface that is convex rearward, the fishing line guide is provided in the circumferential direction around the central axis A. Most of the area close to the first position where the foot 10a of the 10B is arranged can be covered with the tip portion 22b. As a result, the fishing line guide 10B can be attached to the middle rod 5 more firmly.

In one of the above embodiments, as shown in FIG. 3, the fiber-reinforced resin layer 20 has a thickness equivalent to that of two layers of the prepreg sheet 20s in the region facing the gap G1 and the gap G2 in the circumferential direction. Have. Similarly, the second fiber reinforced resin layer 30 has the thickness of two layers of the second sheet 30s in the region facing the gap G1 and the gap G2 in the circumferential direction. As a result, it is possible to suppress the generation of pinholes and voids due to the matrix resin flowing into the gap G1 and the gap G2 from the prepreg sheet 20s.

In one of the above embodiments, as shown in FIG. 9, the fiber-reinforced resin layer 120 has a thickness of one layer of the prepreg sheet 120s in the region facing the gap G1 and the gap G2 in the circumferential direction. The fiber-reinforced resin layer 130 has a thickness equivalent to that of two layers of the prepreg sheet 130s in the region facing the gap G1 and the gap G2 in the circumferential direction. As a result, the generation of pinholes and voids due to the flow of the matrix resin from the prepreg sheets 120s and the prepreg sheets 130s into the gaps G1 and G2 can be further suppressed.

In the above embodiment, the tangent line L1 may be a tangent line drawn from the upper end E3 of the side surface 11c of the foot 10a to the outer peripheral surface of the middle rod 5. Similarly, the tangent line L2 may be a tangent line drawn from the upper end E4 of the side surface 11d of the foot 10a to the outer peripheral surface of the middle rod 5.

According to the above embodiment, a portion of the fiber reinforced resin layer 20 near one end 20a (a portion in a region rotated counterclockwise from the contact P1 in the circumferential direction) and a portion near the other end 20b (in the circumferential direction). The contact force with the outer surface of the inner rod 5 (a portion in the region rotated clockwise from the contact point P2) can suppress the lifting of the left end and the right end of the bottom surface 11b of the foot 10a.

The dimensions, materials, and arrangement of each component described herein are not limited to those expressly described in the embodiments, and each component may be included within the scope of the present invention. Can be transformed to have the dimensions, materials, and arrangement of. In addition, components not explicitly described in the present specification may be added to the described embodiments, or some of the components described in each embodiment may be omitted.

In addition to the fishing line guide 10, the reel sheet 9 can also be attached to the corresponding rod body by the same method as described for the fishing line guide 10B. For example, the reel sheet 9 is attached to the main rod 3 by the fiber reinforced resin layer 20 and the second fiber reinforced resin layer 30.

1 Fishing rod 2 Rod body 3 Main rod 5 Middle rod 7 Tip rod 9 Reel sheet 10 Fishing line guide 20 Fiber reinforced resin layer 21,121 1st part 22,122 2nd part 120 1st fiber reinforced resin layer 130 2nd fiber reinforced resin Layer 20s, 120s, 130s Prepreg sheet 40 coating layer

Claims (10)

A rod body that extends in the front-back direction along the central axis,
A mounting component having a mounting portion mounted on the outer peripheral surface of the rod body at the first position in the circumferential direction around the central axis.
A fiber reinforced resin layer provided around the rod body so as to cover the mounting portion, and
With
The fiber-reinforced resin layer extends from a first portion covering the rod body over the entire length in the circumferential direction around the central axis and from the rear end of the first portion in the axial direction to the rear in the axial direction. It has a second portion configured to extend less than 180 ° clockwise from the first position in the circumferential direction and less than 180 ° counterclockwise.
fishing rod. The first portion is configured such that its axial length La satisfies the relationship between the axial length Ld of the mounting portion and Ld / 2 ≦ La.
The fishing rod according to claim 1. In the side view, the rear end of the second portion has a convex shape toward the rear in the section between the second position rotated 90 ° clockwise from the first position and the first position. It is configured to have a convex shape forward in the section between the second position and the third position rotated 180 ° clockwise from the first position.
The fishing rod according to claim 1 or 2. The fiber-reinforced resin layer is formed by curing a prepreg sheet wound around the rod body.
The fishing rod according to any one of claims 1 to 3. The fiber-reinforced resin layer is formed by curing a first prepreg sheet wound around the rod body and a second prepreg sheet wound around the outside of the first prepreg sheet.
The fishing rod according to any one of claims 1 to 3. The first prepreg sheet is configured to extend 90 ° clockwise and 90 ° counterclockwise from the first position in the circumferential direction.
The fishing rod according to claim 5. The fiber-reinforced resin layer has a first fiber-reinforced resin layer obtained by curing the first prepreg sheet and a second fiber-reinforced resin layer obtained by curing the second prepreg sheet.
The fishing rod according to claim 5 or 6. The fiber-reinforced resin layer contains reinforcing fibers having an orientation angle smaller than 90 ° with respect to the axial direction.
The fishing rod according to any one of claims 1 to 7. The mounting part is a fishing line guide.
The fishing rod according to any one of claims 1 to 11. The mounting component is a reel seat.
The fishing rod according to any one of claims 1 to 11.

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