JP4743475B2 - Fishing rod housing and fishing rod - Google Patents

Description

The present invention relates to a fishing rod provided with a plurality of rods such as a tip rod, a middle rod, and a rod, and a rod for fishing rod.

  Generally, a fishing rod body is formed by winding a prepreg around a mandrel and then firing it to form a cylinder, or after impregnating a resin with a large number of reinforcing fibers bundled and then pulling it out from a die. A simple casing is formed (see Patent Document 1).

JP 2000-23925 A (paragraph numbers [0013] and [0014])

In the case described above, a cylindrical cross section is a cylindrical cross section, and a solid cross section is a circular cross section if it is a solid case. Equivalently, the bending stiffness in the vertical direction around the axis and the horizontal axis (corresponding to the second axis) that is 90 ° different from the horizontal axis (corresponding to the first axis) described above by rotating the housing 90 ° around the axis. The bending rigidity in the vertical direction was the same, and the rigidity of the casing was unchanged in any direction.
Therefore, when performing an actual fishing operation, it is basically preferable for the rod to bend vertically so as to set the tone of the rod, but it is also easy to bend diagonally or horizontally. As a result, it was difficult to perform fishing operations. In other words, since the direction of the bending is not determined, there is a problem that the body causes a so-called dance phenomenon or the yarn is likely to be entangled.

  An object of the present invention is to provide a fishing rod that is easy to handle even when interacting with fish while preventing a dance phenomenon and string entanglement.

〔Constitution〕
The characteristic configuration of the invention according to claim 1 is that the main body of the tip rod is formed in a cylindrical shape, a top guide is provided at the tip, and a movement guide is provided at an intermediate position, which is perpendicular to the axis of the main body. In order to make the one axis line and the second axis line orthogonal to each other so that the bending rigidity around the first axis in the housing body is smaller than the bending rigidity around the second axis, The outer peripheral surface is set to a circular surface with a thickness smaller than that of the portion away from the second axis, and the outer peripheral surface is set to a circular surface. A front heel portion with a seat and a rear heel portion provided with a butt plug constitute a front rivet, and a fitting cylinder portion is extended rearward from the buttock side end portion of the front heel portion, and the rear Forming an inward fitting hole for fitting and fixing the fitting cylinder portion at the front end of the front collar portion, the front former collar portion And removable and said rear base rod portion spigot type and said front end face of the rear end surface and the rear base rod portion of the front base rod portion is provided with a serrated chrysanthemum, said rear base rod portion Is attached to the front heel portion, and the Kikuza is meshed to prevent rotation, and the operation and effect thereof are as follows.

[Action]
When a fish is caught on a fishing rod, the bending moment acting on the arbitrary cross section perpendicular to the axis of the tip rod from the tip of the tip rod, and the bending rigidity (longitudinal elastic modulus × secondary moment of section) at that portion, The amount of deflection at the tip of the tip is determined. In other words, the ease of bending of the chassis is determined.
Accordingly, as described above, when the bending load is applied around the first axis, the tip of the housing body is bent, and when the bending force is applied around the second axis by rotating the housing body 90 ° around the axis. The bending of the tip of the first axis is larger because the rigidity is smaller in the case of the first axis.

〔effect〕
As a result, when the main body is used with the first axis in a horizontal state, it is easy to bend in the vertical direction and difficult to bend in the horizontal direction. The dance phenomenon and the tangling phenomenon can be avoided.
Here, the thickness directly related to the magnitude of rigidity will be described. That is, if the thicker one has the same outer diameter, the rigidity is high. Then, the bending rigidity around the first axis is determined according to the thickness of the part away from the first axis, and the bending rigidity around the second axis is dependent on the thickness of the part away from the second axis. Maru.
Therefore, since the thickness of the part away from the first axis is thinner, the rigidity around the first axis is low and it is easy to bend.
As a result, when the main body is used with the first axis in a horizontal state, it is easy to bend in the vertical direction and difficult to bend in the horizontal direction. The dance phenomenon and the tangling phenomenon can be avoided .

〔Constitution〕
In the characteristic configuration of the invention according to claim 2, the arrangement density of the reinforcing fibers in the part away from the first axis is set to be smaller than the arrangement density of the reinforcing fibers in the part away from the second axis. The effects are as follows.

[Function and effect]
This is the same as the effect of the invention according to claim 1 .

〔Constitution〕
The characteristic configuration of the invention according to claim 3 is a portion separated from the first axis so that the bending rigidity around the first axis in the housing body is smaller than the bending rigidity around the second axis. The elastic modulus of the reinforcing fiber is set to an elastic modulus smaller than the elastic modulus of the reinforcing fiber in the portion away from the second axis, and the function and effect are as follows.

[Function and effect]
Here, the elastic modulus of the reinforcing fiber that is directly related to the magnitude of rigidity will be described. That is, even if the cross-sectional second moment related to the rigidity is the same, the longitudinal elastic modulus related to the stiffness differs if the elastic modulus of the reinforcing fiber is different. Then, the bending stiffness around the first axis is determined according to the elastic modulus of the reinforcing fiber away from the first axis, and the bending stiffness around the second axis is strengthened at the portion away from the second axis. It depends on the elastic modulus of the fiber.
Therefore, since the elastic modulus of the reinforcing fiber in the part away from the first axis is small, the rigidity around the first axis is low and the bending is easy.
As a result, when the main body is used with the first axis in a horizontal state, it is easy to bend in the vertical direction and difficult to bend in the horizontal direction. The dance phenomenon and the tangling phenomenon can be avoided.

  A fishing rod A used for a rod and the like will be described. As shown in FIG. 1, a fishing rod A is configured by including a tip rod 1, a second rod 2, other medium rods outside the figure, and a main rod 3. Here, the individual ones such as the head rod 1, the second rod 2, and the main rod 3 are referred to as a rod body, and the rod body that is not provided with a fishing line guide or coating is referred to as a rod body. The tip rod 1 is provided with a top guide 1A at the tip and a movement guide 1B at an intermediate position, so that the fishing line can be moved smoothly.

  The configuration of the hot pot 1 will be described. As shown in FIG. 2, the cross-sectional shape orthogonal to the axis of the tip 1 is as follows. That is, the outer peripheral surface 1a of the tip 1 is a circular surface having an outer diameter D, and the 180 ° diagonal position in the circumferential direction, that is, two opposite positions are the arc surface 1b inside the tip 1 In addition, an oval hole B having a flat surface 1c between the two portions forming the circular arc surface 1b is formed, and the tip rod 1 is formed in a cylindrical shape.

  2, the thickness t between the circular arc surface 1b and the circular outer peripheral surface 1a is thinner than the thickness T between the flat surface 1c and the circular outer peripheral surface 1a. It is formed thick.

  As shown in FIG. 2, a horizontal coordinate axis XY that is orthogonal to the axis corresponding to the centroid of the cross section is set in the cross section orthogonal to the axis of the tip 1. That is, the horizontal axis is the first axis X, and the vertical axis is the second axis Y. Here, the distance between the circular outer peripheral surface 1a and the flat surface 1c including the first axis X, that is, the portion having a thickness T away from the second axis Y, where the first cylinder portion 1d and Called. An interval between the circular outer peripheral surface 1a and the circular arc surface 1b including the second axis Y, that is, a portion having a thickness t is a portion away from the first axis X and is referred to as a second cylinder portion 1e.

Consider the rigidity in the above configuration. The stiffness is defined by E × I, where E is a longitudinal elastic modulus and is a value determined by the material. I is the moment of inertia of the cross section, and is a value determined by the shape of the cross section.
Therefore, as described above, the cross-sectional secondary moment I around the first axis X becomes smaller due to the influence of the thin wall thickness t of the second cylindrical portion 1e far from the first axis X. Accordingly, the rigidity in this case is small because the longitudinal elastic modulus E does not change. Then, the rigidity is small around the first axis X, and the heel is easily bent.

The cross-sectional secondary moment I when a moment around the second axis Y acts increases due to the influence of the thick wall thickness T of the first cylindrical portion 1d far from the second axis Y. Accordingly, the rigidity in this case increases because the longitudinal elastic modulus E does not change. Accordingly, the rigidity is large and difficult to bend around the second axis Y.
With the configuration as described above, the tip 1 is easily bent in the vertical direction and is not easily bent in the left and right direction, so that the dance phenomenon, the yarn entanglement, and the like of the tip 1 can be avoided.

  A method for manufacturing the hot pot 1 will be described. As shown in FIG. 3, the outer peripheral surface of the metal mandrel 4 is formed as follows. Once the outer peripheral surface is formed into a circular shape, the 180 ° diagonal position of the circular outer peripheral surface is cut into flat surfaces 4A and 4A. By this processing, an oval cross section composed of the two flat surfaces 4A and 4A facing each other and the two circular arc surfaces 4B and 4B facing each other formed as a circular outer peripheral surface is formed on the outer peripheral surface of the mandrel 4. Is formed.

  Next, a main pattern 5 for forming a casing is prepared. The prepreg that is the base of the main pattern 5 is formed by impregnating a reinforcing fiber such as carbon with a thermosetting resin such as epoxy or phenol. The prepreg is cut into a substantially trapezoidal shape as shown in FIG. The main pattern 5 is alternately arranged with the reinforcing fibers aligned in the circumferential direction and the axial direction.

  Three main patterns 5 are wound around a mandrel 4 to perform rolling molding. After the rolling molding, the mandrel 4 is baked and then cut into an appropriate length to decenter the mandrel 4. FIG. 4 shows the heel material 6 after the decentering. The bag material 6 has an oval hole 6A formed along the outer shape of the mandrel 4 inside, and an oval outer peripheral surface formed along the cross-sectional shape of the oval hole 6A is formed on the outer peripheral surface. It is.

As shown in FIG. 5, the collar body 6 is formed in a circular shape on the outer peripheral surface of the collar material 6 with the centerless polishing machine 7 to form the casing body 8. The centerless polishing machine 7 includes a guide roller 7A, a support base 7B for the saddle material 6, and a polishing belt 7C. As shown in FIGS. 2 and 6, the cross-sectional shape of the housing body 8 is an oval hole 8A having a circular surface 8a on the outer periphery and an arc surface 8b and a flat surface 8c on the inner periphery. By applying a coating to the main body 8 and attaching the top guide 1A or the like, the tip 1 is formed.

  In the embodiment as described above, in order to give a difference in bending rigidity depending on the axis of the tip rod 1, it is performed by a difference in the thickness T, t of the rod body. The elastic modulus may be different. That is, the reinforcing fiber disposed in the first tube portion 1d has a high elastic modulus, and the low elastic modulus reinforcing fiber is disposed in the second tube portion 1e. Thereby, the longitudinal elastic modulus E of the first cylindrical portion 1d provided with the high elastic modulus reinforcing fiber is large, and the vertical elastic modulus E of the second cylindrical portion 1e provided with the low elastic modulus reinforcing fiber is reduced. The rigidity at the first cylinder portion 1d is high, and the rigidity at the second cylinder portion 1e is low. In this case, the hole inside the housing may not be the oval hole B but may be a circular hole having a constant thickness.

  As a method of making the longitudinal elastic modulus E different by using the reinforcing fibers, the arrangement density of the reinforcing fibers in the first cylinder portion 1d is increased and the arrangement density of the reinforcement fibers in the second cylinder portion 1e is decreased. Then, the longitudinal elastic modulus E in the first tube portion 1d is increased, and the rigidity is made larger than that in the second tube portion 1e.

  Next, another structure of the main rod 3 such as throwing used for throwing fishing will be described. As shown in FIG. 7, the front heel portion 3A having the plate reel sheet 9 and the rear heel portion 3B having the bottom plug 3C constitute the refrigeration portion 3, and the front heel portion 3A and the rear heel portion The portion 3B can be attached and detached in a stamping style. That is, as shown in FIG. 7, the fitting tube portion 3a extends backward from the buttock side end portion of the front heel portion 3A, and the fitting tube portion 3a is inserted into the mouth of the rear heel portion 3B. An inward fitting hole 3b to be fixed is formed.

  With the configuration as described above, it is possible to attach the rear heel part 3B to the front heel part 3A and lengthen the heel 3 and use the rear heel part 3B from the front heel part 3A. 3 can be shortened. The joint surfaces of the two are provided with sawtooth-shaped Kikusa 3c and 3d, and the Kikusa 3c and 3d are engaged with each other in a state in which the rear base collar portion 3B is attached to the front main collar portion 3A to prevent rotation.

Therefore, when throwing the device, the rear harpoon portion 3B is attached to the front harpoon portion 3A, and the harpoon portion is lengthened to make it easier to throw. In this case, the length from the plate-shaped reel sheet 5 to the bottom plug is preferably about 800 mm to 900 mm. On the other hand, and finished throwing, when the Do not wound up a mechanism is put Luo invitation, remove the rear base rod portion 3B, performs the fishing operation just in front of the base rod portion 3A. This is because it is difficult to perform the winding operation if there is the rear heel part 3B.

  When performing the operation to wind up the device, the winding operation is performed by sandwiching the part behind the reel sheet 5 to the side. In this case, in order to stabilize the holding state of the heel, so-called waist loss is improved. An elastic material 3c such as rubber is attached to the rear end portion of the fitting tube portion 3a. In this case, the length from the reel sheet 5 to the elastic member 3e is preferably about 300 mm to 450 mm.

[Another embodiment]
(1) Although the flat surface 1c in the hole formed in the tip 1 or the like is formed at two places on the surface opposed to each other by 180 °, it may be provided on one of the left and right sides as shown in FIG.
(2) As the flat surface 1c in the hole formed in the tip 1 or the like, it is formed at two places on the face opposed to 180 °, but it may be provided at three places on both the left and right sides as shown in FIG. Arc surfaces 1b and 1b are provided on the upper and lower sides.
(3) As the casing for forming the above-described oval hole 1A, it is sufficient that it is provided at least in the tip basket 1.

Whole side view of fishing rod Longitudinal sectional view A perspective view showing a core bar and a pattern around which the core bar is wound The perspective view which shows the state which wound the metal core, formed the housing, and removed the metal core Longitudinal front view showing polishing work by centerless polishing machine Perspective view showing the housing after polishing by a centerless polishing machine Side view showing the structure that can separate the main fence into two parts Longitudinal sectional view according to another embodiment Longitudinal sectional view according to another embodiment

DESCRIPTION OF SYMBOLS 1 Ear tip 1b, 8b Arc surface 1c, 8c Flat surface 1d 1st cylinder part 1e 2nd cylinder part 2 2nd cage 3 Genroku 4 Mandrel 6 Cocoon material 8 Housing body T, t Thickness

Claims (3)

The main body of the head rod is formed in a cylindrical shape, a top guide is provided at the tip, and a movement guide is provided at an intermediate position. The first axis and the second axis perpendicular to the axis of the main body are connected to each other. In order to make the bending rigidity around the first axis of the housing body smaller than the bending rigidity around the second axis, an oval hole having a flat surface is formed, The front wall portion and the bottom plug with the reel sheet attached, with the wall thickness of the portion away from the first axis being smaller than the wall thickness of the portion away from the second axis and the outer peripheral surface set to a circular surface A rear heel portion comprising a front heel portion, a fitting tube portion extending backward from a buttock-side end portion of the front heel portion, and the fitting tube at the rear edge of the rear heel portion An inward fitting hole for inserting and fixing the part is formed, and the front heel part and the rear heel part are attached / detached in a stamping manner And ability and the front on the front surface of the rear end surface and the rear base rod portion of the base rod portion is provided with a serrated chrysanthemum, in a state of attaching the said rear base rod portion to said front base rod portion A fishing rod that is locked by the engagement of Kikuza. The rod for fishing rods according to claim 1, wherein the arrangement density of the reinforcing fibers in the part away from the first axis is set to be smaller than the arrangement density of the reinforcing fibers in the part away from the second axis. body. In order to make the bending rigidity around the first axis in the casing main body smaller than the bending rigidity around the second axis, the elastic modulus of the reinforcing fiber in the part away from the first axis is set to the second axis. The fishing rod housing according to claim 1 or 2, wherein the elastic modulus is set to be smaller than an elastic modulus of a reinforcing fiber in a part away from the fishing rod.

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