JP5373583B2 - Fishing rod with inlay joint structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fishing rod having a faucet joint structure capable of enduring an operation while twisting the front and rear rods of a joint member by different directions with each other. <P>SOLUTION: The joint member 30 is equipped with an inclined layer 30C formed by a prepreg sheet, and the inclined layer 30C is provided by having the reinforcing fibers of the prepreg sheet inclined by &ge;15&deg; towards the central axial line CL of the joint member 30, and also being installed as continued from the one end 30E1 side of the joint member 30 to the other end 30E2 side. The front and rear rods 10, 20 are equipped with each of the rod side inclined layers as added with the main layer of each of the rods, formed by the prepreg sheet over the end of each of the rods facing by joining up to the position of more suitable depth than the position of the inserting ends of the joint member 30, where the reinforcing fibers of the prepreg sheet are inclined by &ge;15&deg; and &le;75&deg;, and are constituted so that the torsional rigidity caused by each of the rod side inclined layers 10C, 20C becomes smaller than the torsional rigidity of the exposed region of the joint member 30 caused by the inclined layer 30C. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a joint type fishing rod, and more particularly, to a fishing rod having an inlay joint structure.

From the viewpoint of reducing the weight of a fishing rod, as the rod main body layer, there is an increasing number of cases where an inclined layer in which reinforcing fibers are oriented in the inclination direction is not provided. This tendency is particularly strong in lure rods, fly rods, and spatula kites in addition to kites that should be prevented from being lifted. In addition, fishing rods that employ an inlay joint structure have been used for the advantage that the outer diameters of the front and rear rods to be joined can be the same. Applications concerning such spigot joint fishing rods and spigot splice members can be seen as follows.
JP 2000-279063 A JP 2000-300123 A JP 2003-250396 A JP 2004-254650 A

However, when the above-mentioned type of fishing rod is configured as a spigot splicing type fishing rod, it is operated while twisting the front or rear spear of the splicing member for splicing. In this case, a large torsional load acts on the collar and the joint member. Since the joint member for splicing the spigot is generally thinner than the outer diameters of the front and rear ridges, the torsional rigidity is originally reduced.
Therefore, the problem to be solved is to provide a fishing rod having an inlay joint structure that can withstand an operation while twisting the front and rear rods of the inlay joint member in different directions when the rod is inserted and removed. At the same time, the weight of the bag will be reduced.

In view of the above problems, the first invention is made of a fiber reinforced synthetic resin in which the ridges before and after having a main body layer made of fiber reinforced synthetic resin having at least longitudinal direction-oriented reinforcing fibers have at least longitudinal direction-oriented reinforcing fibers. The joint member is provided with an inclined layer formed by a prepreg sheet, and the inclined layer has a reinforcing fiber of the prepreg sheet of 15 degrees or more with respect to the central axis of the joint member. Inclined and provided continuously from one end side to the other end side of the joint member, the front and rear heels are added to the main body layer of each heel and face each other when joined together The prepreg sheet is formed from the end of the ridge to a position that is appropriately behind the position of the insertion end of the joint member, and the reinforcing fiber of the prepreg sheet is 15 with respect to the central axis of each ridge. That more than 75 degrees comprises a respective rod杆側gradient layer which is inclined below the torsional stiffness of the region in which a respective rod杆側gradient layer is smaller than torsional rigidity of the exposed region of the joint member Provided is a fishing rod having a characteristic inlay joint structure.
The main body layer refers to a layer having a full length of each ridge or a length close thereto, specifically, a layer having a length of 80% or more of the total length.

In the second invention, each of the main body layers of the first invention does not have an inclined layer formed by a prepreg sheet and whose reinforcing fibers are inclined by 15 degrees or more with respect to the central axis of each ridge, The inclined layer of the joint member is configured to be the outermost layer among the plurality of layers of fiber-reinforced synthetic resin of the joint member.
In the third aspect of the invention, each rod杆側gradient layer of the second invention, each rod rod corresponding located in the innermost layer, also respective the rods inclined layer also graded layer of said joint member, each of the The reinforcing fiber is configured to appear on the surface of the member.

  In the first invention, the presence of the inclined layer greatly contributes to the torsional rigidity of the joint member, and the torsional rigidity of the joint member exposed portion having a smaller diameter than that of the front and rear hooks can be ensured. In addition, the torsional load at the time of insertion / removal operation is higher in the region where the heel-side inclined layer is added in the front and rear heel than the heel region where the heel-side inclined layer is not added. Strong against. When inserting and removing the front and rear heels, each hand grips the position in the longitudinal direction of the heel where the heel-side inclined layer of each heel disappears (in other words, the heel side is terminated so as to end around that position). Provide an inclined layer). However, a large change in the torsional rigidity of the heel at the position where the heel-side inclined layer disappears may cause the area without the heel-side inclined layer to be picked depending on variations in the picking position. To prevent wrinkle damage due to torsion, that is, to prevent the difference in torsional rigidity between the region where the heel-side inclined layer is present and the region where it is not present from becoming too large (small), The torsional rigidity is smaller than the torsional rigidity of the inclined layer of the joint member.

In the second invention, since the main body layer of each heel has no inclined layer, the weight of the heel can be reduced, and the heel-side inclined layer controls most of the torsional rigidity of the heel. Further, since the inclined layer of the joint member is located in the outermost layer, the torsional rigidity can be most effectively ensured with a small diameter.
In the third invention, since a large number of reinforcing fibers oriented in the inclined direction appear on the outer surface of the joint member and the inner surface of the collar joined to the joint member, the frictional force between them increases. And it becomes difficult to come off during fishing operation.

  Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. FIG. 1 is a side view of a luer rod as an example of a fishing rod according to the present invention, and FIG. 2 is an enlarged longitudinal sectional view of a portion B in FIG. The reinforced plastics 10 and 20 made of fiber reinforced resin in which matrix resin such as epoxy resin is reinforced with carbon fiber or the like are used. A rear portion of the joint member 30 made of fiber reinforced resin having an outer diameter substantially the same as the inner diameter of the front end of the main rod is inserted into the front end portion of the hollow main rod 10 and fixed by bonding or the like. The joint member is a rod-like member having a substantially the same diameter as a whole, except for its tip.

Further, a grip portion GR is provided at the rear portion of the marshall, and a reel mounting portion RS for mounting and fixing a reel (in this example, a spinning reel) R is provided immediately before the grip portion.
On the other hand, the front portion 30S of the joint member 30 is formed in a tapered shape, and the front portion including the front portion is inserted into the hole H at the rear end portion of the front end 20, and the front and rear flanges 10, 20 (main The inventive bar 10 and the front bar 20) are spliced together.

  The joint member 30 has a solid core portion 30A with the central axis line CL as the central axis line, and a shaft mainly formed of reinforcing fibers oriented in the longitudinal direction is formed immediately around the core portion 30A by winding a prepreg sheet. The long-direction layer 30B is provided, and further on the outer side, there is an inclined layer 30C formed by winding a prepreg sheet and mainly having reinforcing fibers oriented in the inclination direction. The core portion 30A is heat-molded by impregnating a synthetic resin such as an epoxy resin into one obtained by aligning carbon fibers or glass fibers in the longitudinal direction or bundling these aligned reinforcing fiber bundles. In this embodiment, the axial length direction layer 30B has a longitudinal direction oriented carbon fiber having a longitudinal elastic modulus equal to or higher than that of the carbon fiber used in the core portion, and the density of the carbon fiber is the core portion. Higher than.

  In this embodiment, the prepreg sheet used in the axial length direction layer has a glass scrim sheet (a woven fabric having fibers in the axial length direction and the circumferential direction (90 degrees)), which is made of carbon fiber. A simple prepreg sheet of carbon fiber without lining may be used. Further, the axial length direction layer 30B extends from one end 30E1 of the joint member 30 or the vicinity thereof to the other end 30E2 or the vicinity thereof.

  In addition, the inclined layer 30C directs carbon fibers having an appropriate longitudinal elastic modulus in the direction of 45 degrees with respect to the direction of the center axis CL, directs the same carbon fibers in the direction of the same amount −45 degrees, and the center axis CL. It is formed so as to be substantially mechanically symmetric with respect to the direction. As its form, the prepreg sheet formed on the woven fabric is wound, or one of the prepreg sheets aligned in one direction is oriented in the 45 degree direction, the other is oriented in the -45 degree direction, and these are superposed one above the other. Or Of course, the inclination angle is not limited to 45 degrees, and can be appropriately selected within the range of 15 degrees or more and 75 degrees or less that can counter the torsional load. Preferably it is 30-60 degrees.

  The prepreg sheet used for the inclined layer in the above embodiment has a glass scrim sheet backing, which may be a carbon fiber backing, or may be a carbon fiber aligned prepreg sheet without a backing. Further, the inclined layer 30C extends from the one end 30E1 or the vicinity thereof to the other end 30E2 or the vicinity thereof. Since the joint member 30 has the inclined layer 30 </ b> C as the outermost layer, extremely minute irregularities due to the reinforcing fibers appear on the surface.

  Due to the presence of the axial length direction layer 30 </ b> B, the exposed portion of the joint member 30 having a smaller diameter than the front and rear flanges 10, 20 can be effectively bent and the rigidity can be improved. In addition, the presence of the inclined layer 30 </ b> C that is the outermost layer of the reinforcing fiber layer can effectively ensure torsional rigidity even in the exposed regions exposed from the front and rear ridges 10 and 20. Further, the radial positions of the axial length direction layer 30B and the inclined layer 30C can be interchanged. Further, instead of the core portion 30A, the reinforcing fiber may be composed of one or a plurality of layers by winding a longitudinally oriented prepreg sheet (with or without backing). A layer having a higher density of carbon fibers than the inner layer at an appropriate position and an outer layer at an appropriate position (for example, the axial length direction layer 30B at the position in FIG. 2). Exists. Thus, when there are three or more axial length direction layers, it is preferable that the longitudinal elastic modulus is equal to or higher and the fiber density is higher toward the outside. The joint member 30 may have a hollow center part region including the central axis.

  The main fence 10 has an inner layer 10A and an outer layer 10B on the outer side thereof as a main body layer extending over almost the entire length, and as shown in FIG. The heel-side inclined layer 10C is disposed between the two layers 10A and 10B over a range slightly beyond the rear end position where the joint member 30 is inserted and fixed by fixing (a dimension within 200 mm). Has been. This heel-side inclined layer 10C is formed of a prepreg sheet, and main reinforcing fibers are oriented in the inclination direction. For the details of the heel-side inclined layer 10C, the matters described in the inclined layer 30C of the joint member 30 can be applied except for the length and thickness.

  On the other hand, the layers 10A and 10B are formed by winding a prepreg sheet so that carbon fibers as reinforcing fibers are oriented in the longitudinal direction of the ridges. The prepreg sheet of this embodiment has a scrim sheet backing made of glass fiber, but may be carbon fiber instead of glass fiber, or may not have a backing. In addition to the reinforcing fibers in the longitudinal direction, circumferential reinforcing fibers that are substantially orthogonal to the reinforcing fibers may be provided. Further, in this embodiment, the layer 10A and the layer 10B are continuously wound by one prepreg sheet, but may be formed by separate prepreg sheets.

  Further, the outer periphery 10S of the region near the front end of the main rod 10, that is, the region within the length range where the joint member 30 is inserted is formed in a tapered shape, and when the fishing rod is bent, the position of the front end of the main rod The stress concentration on the joint member 30 is prevented. The vicinity of the rear end of the leading edge 20 is designed to have a diameter equal to or smaller than that of the position of the leading edge, so that the bending rigidity is equal to or smaller. The outer periphery of the leading edge region in which the joint member 30 is inserted may be gradually reduced in diameter toward the end of the flange similarly to the former leading edge region.

  The matters for the layers 20A, 20B, and 20C of the leader 20 are the same as the explanations for the layers 10A, 10B, and 10C of the former, and the difference is that the former side of the former corresponds to the rear side of the former. In addition, in this embodiment, the region near the rear end of the leading edge 20 is not formed in a thin back shape.

As described above, since the heel-side inclined layer is provided in the region near the front end of the main bar 10 and the region near the rear end of the front bar 20, when releasing the seam between the main bar and the front bar, Grip the hand near the tip of the marsket 10 (the position where it terminates in the marshal side of the heel-side inclined layer 10C) and the other hand near the rear end of the tip 20 (on the heel-side graded layer 10C) It is possible to counter the torsional load generated in each hook when the two hooks are pulled apart while gripping and twisting in directions opposite to each other while grasping the vicinity of the end where the tip ends.
In addition, the heel-side inclined layers of the main rod 10 and the front rod 20 are disposed over the front and back of the position corresponding to the front end and the rear end of the joint member 30 when the main shaft and the front end are joined together. Therefore, the torsional load at the position where the stress of the main rod and the leading rod is concentrated during the operation of pulling the two rods apart is counteracted.

Specific torsional rigidity values of the inclined layer 30C of the joint member 30 and the heel-side inclined layers 10C and 20C of the front and rear rods 10 and 20 are illustrated. For the inclined layer 30C, the radius R3 (mm), the wall thickness T3 (mm), the longitudinal elastic modulus E3 of the carbon fiber, and the epoxy resin volume ratio γ3 (%). Further, for the heel side inclined layer 10C, the radius R1 (mm), the wall thickness T1 (mm), the longitudinal elastic modulus E1 (N / mm ² ) of the carbon fiber, the epoxy resin volume ratio γ1 (%), the length L1 ( mm), and a radius R2 (mm), a wall thickness T2 (mm), a carbon fiber longitudinal elastic modulus E2, an epoxy resin volume ratio γ2 (%), and a length L2 (mm) for the heel-side inclined layer 20C. .

R1 = 2.9mm
R2 = 2.8mm
R3 = 2.4mm
T1 = 0.090mm
T2 = 0.085mm
T3 = 0.190mm
E1 = 25 tf / mm ² = 245000 N / mm ²
E2 = 25 tf / mm ² = 245000 N / mm ²
E3 = 25 tf / mm ² = 245000 N / mm ²
γ1 = 45%
γ2 = 45%
γ3 = 45%
L1 = 100mm
L2 = 125mm

As a result, the torsional rigidity values of the heel side inclined layer 10C, the heel side inclined layer 20C, and the inclined layer 30C are 36000 kgf · mm ² = 352800 N · mm ² and 31500 kgf · mm ² = 308700 N · mm, respectively. ² , 44500 kgf · mm ² = 436100 N · mm ² . In this way, the torsional rigidity due to each inclined side inclined layer is set to be smaller than the torsional rigidity due to the inclined layer 30C. Accordingly, the difference in torsional rigidity between the region where the heel-side inclined layer is present and the region where there is no heel-side inclined layer of each of the ridges 10 and 20 is prevented from becoming too large.

Due to the torsional rigidity of the heel-side inclined layer 10C, the heel-side inclined layer 20C, and the inclined layer 30C, the torsional rigidity of the region in which the heel-side inclined layer 10C of the base iron 10 is provided is 59000 kgf · mm ² = 578200 N · mm ² , and the torsional rigidity of the region provided with the heel-side inclined layer 20 C of the tip 20 is 59500 kgf · mm ² = 583100 N · mm ² , which is equivalent. The rigidity of the exposed region of the joint member 30 (region appearing between the former rod 10 and the leading rod 20) is 63500 kgf · mm ² = 622300 N · mm ² , which is larger than these.

Furthermore, the torsional rigidity of the region portion where the heel-side inclined layer 10C of the base rod 10 is not provided and the region portion where the heel-side inclined layer 20C of the leading rod 10 is not provided is 28000 kgf · mm ² = 274400 N · mm ² , 23000 kgf · mm ² = 225400 N · mm ² , and the former gutter 10 is larger, and both are twisted and less rigid than the area having the eaves-side inclined layers 10C and 20C. When the heel side inclined layers 10C and 20C are released from the joint between the front and rear heels 10 and 20, the respective parts are grasped and pulled out while twisting each heel. This is the area where

  FIG. 3 is a longitudinal sectional view of a main part of another type of fishing rod according to the present invention, and corresponds to FIG. Items different from the case of FIG. 2 will be described. In this embodiment, the positions of the heel side inclined layers 10C and 20C are different from those in FIG. That is, each heel side inclined layer is located in the innermost layer of each heel. Further, the carbon fiber of the heel-side inclined layer 20C appears on the inner surface of the tip, and the minute unevenness due to the carbon fiber that is the reinforcing fiber appears, and the joint member positioned inside the tip when joined. The carbon fiber of the inclined layer also appears on the outer surface of 30, and microscopic irregularities due to the carbon fiber as the reinforcing fiber appear. These microscopic irregularities are formed so as to extend in the inclined direction with respect to the central axis CL along the reinforcing fibers.

  Other matters are the same as those in FIG. The advantage of the marshal side in the configuration of FIG. 3 is that the inclined layer 30C exists in the outermost layer of the joint member 30, and the innermost layer of the marshall 10 is also the (salted side) inclined layer 10C. When a torsional load is generated due to the above, transmission of the torsional load between the joint member 30 and the main bar 10 becomes smooth.

The advantage of the leading end in the form of FIG. 3 is that the innermost layer of the leading end 20 is an inclined layer in which very minute irregularities of the carbon fibers appear (inner side) on the inner surface, and the outermost layer of the joint member 30 Since very minute irregularities of a large number of carbon fibers appear on the outer surface of the inclined layer 30C, the frictional force between them increases when they come into contact with each other, making it difficult to pull out during the fishing operation.
In the above-described embodiment, the main body layer of the main rod and the leading rod does not have the inclined direction layer, so that the weight of the rod (fishing rod) can be reduced.

Unlike the above-described embodiments, in the aspect of the first invention, the main body layer of the main rod 10 or the leading rod 20 may have a layer in which the reinforcing fibers are oriented in the inclined direction. Further, the inclined layer 30C of the joint member 30 may not be the outermost layer.
Furthermore, the joint member 30 may be inserted and bonded and fixed to the front side hook, and the rear side hook may be inserted / removed with respect thereto.

  INDUSTRIAL APPLICABILITY The present invention can be used for a joint type fishing rod having an inlay joint portion such as a luer rod, a fly rod, or a spatula rod.

FIG. 1 is a side view of a fishing rod according to the present invention. FIG. 2 is an enlarged vertical sectional view of a portion B in FIG. FIG. 3 is a longitudinal sectional view of an essential part of another type of fishing rod according to the present invention.

DESCRIPTION OF SYMBOLS 10 Genroku 10C 竿 杆 Side inclined layer 20 Leader 20C 竿 杆 Side inclined layer 30 Joint member 30A Core part 30B Axis length direction layer 30C

Claims (3)

The wrinkles before and after having a main body layer made of fiber reinforced synthetic resin having at least longitudinal direction reinforcing fibers are spliced together by an inlay splicing joint member made of fiber reinforced synthetic resin having at least longitudinal direction reinforcing fibers,
The joint member includes an inclined layer formed by a prepreg sheet, and the inclined layer has the reinforcing fiber of the prepreg sheet inclined at least 15 degrees with respect to the central axis of the joint member and one end side of the joint member. Is provided continuously on the other end side,
The front and rear hooks are added to the main body layers of the hooks, and the ends of the hooks facing each other when they are joined together, extend from the position of the insertion end of the joint member to an appropriate depth position. Each heel-side inclined layer is formed by a prepreg sheet, and the reinforcing fibers of the prepreg sheet are inclined at 15 degrees or more and 75 degrees or less with respect to the central axis of each ridge , The torsional rigidity of the provided area is smaller than the torsional rigidity of the exposed area of the joint member . Each of the main body layers is formed of a prepreg sheet and does not have an inclined layer in which the reinforcing fiber is inclined by 15 degrees or more with respect to the central axis of each ridge, and the inclined layer of the joint member is the joint layer. The fishing rod having an inlay joint structure according to claim 1, wherein the fishing rod is an outermost layer among a plurality of layers of the fiber reinforced synthetic resin of the member. Each rod杆側gradient layer located at the lowest layer of the respective rod rod corresponding, also respective the rods inclined layer also graded layer of said joint member, wherein the reinforcing fibers on the surface of each of the member appearing Item 3. A fishing rod having the spigot joint structure according to Item 2.

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