JP4900638B2 - Body for head - Google Patents

Description

  The present invention relates to a rod-shaped rod body.

  In general, there is a spike tip which impregnates a resin with a bundle of a large number of reinforcing fibers and then pulls out from a die to form a solid rod (see Patent Document 1).

JP 2003-23925 A (paragraph number [0014])

Depending on the type of fish to be picked up, the fishing rod corresponding to the type of fish, the conditions of the fishing ground, personal preferences, etc., there are various properties required for the tip rod, but among them the most important is moderate bending rigidity (strength) This is a contradictory property of flexibility. For example, consider the case of catching a fish. The tip of the tip must be soft so that the tip of the tip will bend as the fish runs to suppress thread breakage. Then, a material that exhibits a certain level of waist strength and a strength that can be quickly pulled out is required.
However, the above-mentioned solid round rod-shaped tip end has a surface lacking in softness because its strength is enhanced with higher bending rigidity than a cylindrical tip with the same outer diameter. In pursuit of softness, it is necessary to reduce the diameter of the groin, but if it is intended to ensure softness with a solid rod shape, it will be too thin, so it will break easily and its strength will not be sufficient.
Therefore, there is a limit to satisfy the properties required in the state of a solid round bar.

  An object of the present invention is to provide a spikelet that can exhibit softness and strength.

〔Constitution〕
The feature of the invention according to claim 1 is that the outer casing material is fixed to the outer peripheral surface of the inner rod-shaped inner casing material by fixing the outer casing material with a cylindrical prepreg having a bending rigidity smaller than the bending rigidity of the inner casing material. The small-diameter portion on the heel side of the skeleton is made of the inner heel material, and the large-diameter portion on the heel side from the small-diameter portion on the heel side is located on the outer side with the inner heel material. The elastic modulus of the reinforcing fiber used for the inner cocoon material is made larger than the elastic modulus of the reinforcing fiber used for the outer cocoon material, and the inner cocoon material The number of reinforcing fibers used per unit cross-sectional area is larger than the number per unit cross-sectional area of reinforcing fibers used in the outer bag material, and the reinforcing fibers used in the inner bag material The fiber direction in the direction along the axis of the ridge With Mel, the larger diameter portion of the rod butt side, set in a state of inclining the fiber direction of the reinforcing fibers, wherein in use the outer rod material against rod axis,
The outer peripheral surface of the inner heel material is formed to be a tapered outer peripheral surface that increases in diameter toward the buttock side, and the outer peripheral surface of the outer heel material has the same or substantially the same outer diameter as the outer diameter of the inner heel material. In the taper outer peripheral surface that increases in diameter toward the buttock side from the heel tip, and in a point that is set to a larger inclination rate than the inclination rate that increases in diameter toward the buttock side in the tapered outer peripheral surface of the inner heel material , The effects are as follows.

[Action]
In other words, when compared with the tip rod formed only with the solid rod, if the rod diameter is the same, the solid rod-shaped inner rod material and the rigidity of the inner rod material positioned outside the inner rod material The collar body for the head collar according to the present invention, which is made of a cylindrical outer collar material having a smaller rigidity, has a small rigidity and is soft.
Nevertheless, since a solid heel material with high rigidity and high strength is used on the inside, the inner heel material exhibits strength and the strength of the waist appears after bending over a certain level.

〔effect〕
As a result, it was possible to perform a quick pull-up operation while suppressing yarn breakage.
In addition, the small-diameter heel portion is made of a solid rod-shaped inner heel material. As a result, even if it has a small diameter, it can be formed at a strong tip and is not easily broken. On the other hand, a large bending moment is applied to the large-diameter buttock side part compared to the tip part, but due to the double structure of the inner heel material and the outer heel material, the cross-sectional secondary moment is large and the large bending moment can be countered However, since the outer heel material is a cocoon material with low bending rigidity, it can be made to exhibit moderate softness.
Furthermore, even if the cross-sectional second moment related to the rigidity is the same, the longitudinal elastic modulus related to the rigidity differs if the elastic modulus of the reinforcing fiber is different. Then, since the elastic modulus of the reinforcing fiber used for the inner cocoon material is larger than the elastic modulus of the reinforcing fiber used for the outer cocoon material, the inner cocoon material has high rigidity and the outer cocoon material. The rigidity is low.
With the configuration as described above, it has become possible to provide a tip cocoon that has the softness of the outer heel material while maintaining the strength of the waist with the inner heel material.

Furthermore, the following effects are also achieved .
When a load of fish or the like is applied to the carp, the carp bends downward, but in that case, the upper side is the tensile force along the axis of the carp, and the lower A compressive force along the axis of the heel acts on. Therefore, since the arrangement direction of the reinforcing fibers of the inner heel material is arranged along the axial direction of the heel, the direction coincides with the tensile force and the like, and a large strength is exhibited.
On the other hand, in the outer cocoon material, the reinforcing fiber arrangement direction is inclined with respect to the axis of the cocoon, so that it opposes the tensile force acting in the axis direction of the cocoon in a state inclined by the inclination angle, The resistance is weaker than the strength of the reinforcing fiber itself, and it becomes softer.
With the configuration as described above, it has been possible to provide a tip cocoon that has the softness of the outer heel material while maintaining the strength of the waist with the inner heel material.

  The fishing rod A will be described. As shown in FIG. 1, a fishing rod A is composed of a tip rod 1 and a second rod 2. The tip rod 1 is provided with a top guide 1A at the tip and another line guide 1D, and a fishing line guide 2A is also provided at the mouth of the second rod 2 to facilitate the movement of the fishing line.

  The structure of the rod body 1 will be described. As shown in FIG. 3, the rod-shaped rod 1 has a cylindrical outer rod material 1 </ b> C having a bending rigidity smaller than that of the inner rod material 1 </ b> B on the outer peripheral surface of the solid rod-shaped inner rod material 1 </ b> B. And formed. The small-diameter portion on the heel side of the skeleton is composed of only the inner heel material 1B. As shown in FIG. 4, the large-diameter portion on the heel side is smaller than the small-diameter portion on the heel side. It is comprised by the heel material 1B and the outer heel material 1C located outside.

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.
Here, the difference in rigidity between the inner heel material 1B and the outer heel material 1C is given by the difference in the longitudinal elastic modulus. Specifically, a difference in the longitudinal elastic modulus is given by having a difference in elastic modulus of the reinforcing fibers used in each of the cocoon materials 1B and 1C. The elastic modulus is expressed in ton / square millimeter and indicates the rigidity of the reinforcing fiber itself.

That is, for the inner heel material 1B, a fiber having an elastic modulus of 20 to 24 tons / square millimeter is selected as the reinforcing fiber. Generally, this elastic modulus belongs to the middle elastic system, and PAN-based carbon fiber, aramid fiber, boron fiber, or the like can be used as the reinforcing fiber.
For the outer heel material 1C, a fiber having an elastic modulus of 5 to 10 tons / square millimeter is selected as the reinforcing fiber. Generally, this elastic modulus belongs to a low elastic system, and aramid fiber, alumina fiber, glass fiber, or the like can be used as the reinforcing fiber.

  Next, a manufacturing method of the hot pot 1 will be described. First, the solid rod-shaped inner scissors material 1B will be described first. A bundle of reinforcing fibers (500 to 1000) bundled along the axis is submerged in the resin liquid and impregnated with the resin. The resin is a thermosetting resin and corresponds to an epoxy resin or a phenol resin. A bundle of reinforcing fibers impregnated with resin is passed through a die and drawn. A bundle of reinforcing fibers drawn out from a die is cut into a predetermined length.

Next, a manufacturing method of the outer heel material 1C will be described. The outer collar material 1C is manufactured by a prepreg formed by aligning reinforcing fibers having a smaller elastic modulus than the reinforcing fibers of the inner collar material 1B and impregnating the aligned reinforcing fibers with a resin. As shown in FIG. 2, from a sheet-like prepreg formed by impregnating a resin in the aligned reinforcing fibers, a pattern 3 in which the reinforcing fibers are aligned along the axial direction of the ridge is cut. The resin is a thermosetting resin and corresponds to an epoxy resin or a phenol resin. The cut pattern 3 is wound around and fixed to the solid rod-shaped inner rod material 1B that has been polished. After being fixed, it is fired to harden the thermosetting resin, and after firing, it is cut into a predetermined length. Polishing processing is performed on the combined product of the solid rod-shaped inner rod material 1B and the cylindrical outer rod material 1C formed in this way so as to have a predetermined tapered outer peripheral surface by a centerless polishing machine.
After the polishing process is performed, a predetermined coating is applied, the top guide 1A and the like are mounted, and the tip 1 is commercialized. The ridge diameter of the tip 1 is 0.8 mm to 1.05 mm.

[Another embodiment]
(1) As shown in FIG. 5, the direction of the reinforcing fibers of the outer heel material 1 </ b> C is a cross shape in which the reinforcing fibers are vertically and horizontally combined with those along the axial direction of the heel and those along the circumferential direction of the heel. Prepregs may be used.

(2) As shown in FIG. 6, you may wind the thing formed by inclining in the state which inclines with respect to the axial direction of a ridge of the reinforcing fiber arrange | positioned in the above-mentioned cross shape. Then, in the outer heel material, the arrangement direction of the reinforcing fibers is inclined with respect to the axis of the cocoon, so the component force inclined by the inclination angle opposes the tensile force acting in the axial direction of the heel. The resistance is weaker than the strength of the reinforcing fiber itself, and it becomes softer. As described above, since the reinforcing fiber itself is inclined, even if the elastic modulus of the reinforcing fiber itself has the same elastic modulus as that of the reinforcing fiber of the inner heel material 1B, the apparent elastic modulus becomes small. . Although FIG. 6 shows the reinforcing fibers arranged in a cross shape, a prepreg in which the reinforcing fibers are aligned in a direction inclined with respect to the axis of the ridge may be used as the outer material.
In addition, since the reinforcing fibers are provided in the direction inclined with respect to the axial direction of the cocoon as described above, the tip heel 1 is less likely to crack along the axial direction of the cocoon.

(3) As the outer cocoon material 1C, a pattern made of a plurality of prepregs may be overlapped and wound around the inner cocoon material 1B to form the tip cocoon 1.

Side view showing Hote and Niban The perspective view which shows the state before winding the prepreg which aligned the reinforcing fiber in the axial direction of the cocoon as the outer cocoon material for the solid rod-like inner cocoon material The perspective view which shows the state which wound the prepreg as an outer side ridge material with respect to a solid rod-like inner side ridge material Sectional view along line IV-IV in Fig. 3 The perspective view which shows the state before using the cross-shaped prepreg as an outer side heel material, and winding the prepreg The perspective view which shows the state before winding the prepreg which used the cross-shaped prepreg as an outer side wrinkle material, and aligned the reinforcing fiber in the direction which inclines with respect to the axial direction of a wrinkle

1 Hot Pot 1B Inner Agate Material 1C Outer Agate Material

Claims (1)

The outer rod material (1C) made of a cylindrical prepreg having a bending rigidity smaller than that of the inner rod material (1B) is fixed to the outer peripheral surface of the solid rod-shaped inner rod material (1B) to form a casing. The small-diameter portion on the heel side of the rod body is composed of the inner heel material (1B), and the large-diameter portion on the heel side from the small-diameter portion on the heel side is the inner heel material (1B). And the outer heel material (1C) located on the outer side, and the elastic modulus of the reinforced fiber used in the inner heel material (1B) is the reinforcing fiber used in the outer heel material (1B). unit sectional area of a high elastic modulus than the elastic modulus, the number per unit cross-sectional area of the reinforcing fibers used in the inner rod material (1B), reinforcing fibers used in the outer rod element (1C) of The number is larger than the number of hits, and is used for the inner bag material (1B). The fiber direction of the reinforced fiber is determined in a direction along the axis of the heel, and the large-diameter portion on the heel side has the fiber direction of the reinforced fiber used in the outer heel material (1C). Set to tilt with respect to the axis,
The outer peripheral surface of the inner heel material (1B) is formed on the outer peripheral surface of the inner heel material (1B) while the outer peripheral surface of the inner heel material (1B) is formed on the outer peripheral surface of the inner heel material (1B). From a taper outer peripheral surface that increases in diameter toward the buttock side from the heel tip that exhibits the same or substantially the same outer diameter, and an inclination rate that increases in diameter toward the buttock side on the tapered outer peripheral surface of the inner heel material (1B) This is a body for the heads that has a large slope .

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