JPH10210891A - Fishing rod - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fishing rod which enables an angler to do comfortable fishing in site of the weak physical strength of the angler even in the case the angler catches a large fishes or a fish providing a strong drag. SOLUTION: The fishing rod from the part near its root to the tip is composed of a solid rod 30 including a region where a fiber reinforced resin prepreg formed by aligning reinforcing fibers mainly in one direction is wound and integrated so as to direct the reinforcing fiber direction approximately to the axial length direction on the front surface of a solid body which consists of a resin as a matrix and is reinforced with the reinforcing fiber mainly directed to the approximate axial length direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fishing rod having a solid rod.

[0002]

2. Description of the Related Art A structure using a solid body, called a so-called solid body, at the tip of a solid body obtained by impregnating a resin with a reinforcing fiber aligned in the axial direction and impregnating the resin is disclosed in Japanese Utility Model Publication No. SHO 59-59.
No. -20057. This is a tip rod in which glass fiber having a low elastic modulus is used as a reinforcing fiber of a solid body, and a prepreg using carbon fiber having a high elastic modulus is wound around the outer periphery of the base side and integrated.
As described above, the use of a solid rod as the tip rod has been conventionally performed. However, conventionally, a rod for catching a large fish or a fish with a strong pull has been constituted by a hollow rod tube at least from the wrist to the vicinity of the tip. This is because a large bending force acts on the wrist when these fish are caught, so it is necessary to increase the bending rigidity of this wrist to some extent, that is, to make the fishing rod with a certain diameter large enough to withstand fish pulling. In addition, it is necessary to achieve weight reduction. However, the tip of the pole must of course be thin. Therefore, a hollow rod tube manufactured by winding a prepreg around a core bar is used except for at least the vicinity of the tip, and in general, these are spliced together to gradually narrow the tip side to form a fishing rod of a predetermined length.

[0003]

However, since the proximal portion is a hollow tube having a large bending rigidity and a large diameter to some extent, if this portion is largely bent, a so-called collapse breakage occurs. For this reason, it is configured so as to have a greater bending rigidity so as not to bend so much near the hand. Since the fishing rod configured as described above has a large diameter at the proximal end and a predetermined thinness at the tip, it is naturally a long fishing rod in general. Therefore, when the fish is hooked, the bent state of the fishing rod greatly bends from the middle part to the tip part, but does not bend so much from the middle part to the hand part. Due to the distance from the wrist to the middle, the distance from the wrist held by the angler to the rod tip is long, even when the fish is bent and bent, acting on the wrist caused by the load of fish etc. The moment of bending is very large, and the endurance of the angler who can endure this is very severe.
In addition, since the carbon fiber wound around the outer periphery of the solid body disclosed in the above publication has a higher elastic modulus than the glass fiber of the solid body, the rigidity of the tip sharply changes before and after the leading edge position of the wound prepreg. The bending state before and after suddenly changes,
There is a disadvantage that it is easily broken from this part. Further, since the type of the reinforcing fiber is different between the solid body and the wound prepreg, the material tip is likely to bend at the formed tip due to a difference in linear expansion coefficient.

Accordingly, it is a first object of the present invention to provide a fishing rod capable of fishing comfortably even when a big fish or a fish that strongly pulls is caught, even if the angler's physical strength is small. Further, a second aspect of the present invention is to provide a fishing rod having a solid rod rod in which bending before and after a front end edge of a prepreg wound on a solid body is smooth, stress concentration hardly occurs, and a molding material is hardly bent. Aim.

[0005]

In view of the first object, in the first aspect, the reinforcing fibers are mainly provided on the surface of a solid body which is made of a matrix resin and is reinforced mainly with reinforcing fibers oriented substantially in the axial direction. A solid rod having a region in which a fiber-reinforced resin prepreg aligned in one direction is wound and integrated so that the direction of the reinforcing fiber is directed substantially in the axial direction, from near the base of the fishing rod to the rod tip. The present invention provides a fishing rod characterized in that: The phrase “from the vicinity of the base” may be from the rear end of the fishing rod or from, for example, a place excluding the gripping operation part (handle part). That is, the region where the bending is not planned is arbitrary, but the region where the bending is planned is constituted by the solid rod. The prepreg referred to in the present application has a broad meaning including not only a prepreg using a general thermosetting resin but also a prepreg in which a thermoplastic resin is mixed with a reinforcing fiber. Accordingly, the concept of the matrix synthetic resin includes both types of resins.

[0006] In view of the second object,
A resin is used as a matrix, and a coating film is applied to the surface of the tip of the solid body reinforced mainly with carbon fibers oriented substantially in the axial direction, and the elastic modulus of the carbon fiber is applied to the surface of the solid body excluding the tip. A solid rod having a region in which a prepreg having a resin ratio smaller than the resin ratio of the solid body is wound and integrated using mainly carbon fibers having an elastic modulus of the following size as an axial length reinforcing fiber. A fishing rod characterized by having a rod is provided.

According to the first aspect of the present invention, if the fishing rod is formed solid rather than hollow, even if it is greatly bent, it does not collapse and break. For this reason, it is possible to configure the fishing rod of the solid rod so that the hand portion is largely bent. Therefore, when a large fish or the like is caught, the entire fishing rod, including the hand, is greatly bent,
The distance from the wrist held by the angler to the pole tip is shortened, the load of the bending moment on the angler is reduced, and fishing becomes very comfortable. That is, in the present application, attention is paid to the fact that the use of a solid rod can prevent collapse and destruction, and the adoption of the solid rod can greatly bend to the hand portion, thereby enabling comfortable fishing.

According to the second aspect, a rod having a small diameter can be generally formed by using a solid body. However, the prepreg wound on the solid body has the same flexural rigidity because the resin ratio is smaller than that of the solid body. If you get
The wrapping of the prepreg can reduce the diameter and weight as compared with the case where the prepreg is composed of only a solid body. Because the elastic modulus of the reinforcing fiber oriented in the axial direction of the wound prepreg is equal to or less than the elastic modulus of the reinforcing fiber oriented in the axial direction used for the solid body, the rod rigidity at the boundary of the winding of the prepreg may change suddenly. Is prevented. For this reason, the bending is smooth, stress concentration hardly occurs, and the strength is improved. At the same time, since the reinforcing fibers oriented in the axial direction are mainly composed of the same type of carbon fiber, even if the solid body is previously heat-formed in advance and heated later together with the wound prepreg, Since the difference in the coefficient of linear expansion is small, bending of the molding material can be prevented. In addition, when the tip of the solid body is formed into a tapered shape by grinding or polishing, the result is that the reinforcing fibers oriented in the axial direction near the surface are cut off. Since the coating film is applied to the substrate, peeling and tearing can be prevented.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to embodiments shown in the accompanying drawings. FIG. 1 shows a casting rod as an example of a fishing rod according to the present invention. The region L14 is the handle portion, and the front region L10 is the region where bending is planned. Due to the connection with the handle, the solid rod 30 is used over the range of the length L12, and the original side is inserted and fixed in the handle, but the entire length of the fishing rod including the handle L14 is included. A structure in which the solid rod 30 is inserted may be adopted.
The handle portion has a rear grip G1 and a front grip G2, and a reel mounting portion 28 is provided between the two grips. The front grip G2 is screwed, and is rotated to mount or remove the reel. 26 is a trigger, and G is a fishing line guide.

A method of manufacturing the solid rod 30 will be described with reference to FIG. First, the solid body 10 in which the reinforcing fibers are oriented substantially in the axial direction is prepared. In the solid body 10 of this embodiment, the proximal region L3 has a substantially straight shape, and the distal region L2 has a tapered taper shape. The illustrated trapezoidal prepreg sheet P1 is wound around the entire surface from the front end to the rear end of the solid body, and then the illustrated triangular prepreg sheet P2 is extended over the entire area L3 and a part of the area L2. And, furthermore,
Over the area L3, the trapezoidal prepreg sheet P3 shown
Wrap. After that, heat molding is performed while pressing with a fastening tape or the like.

Most of the reinforcing fibers of each of the above prepreg sheets are oriented substantially in the axial direction. The elastic modulus of the reinforcing fibers oriented in the axial direction is increased in the order of prepreg P1, prepreg P2, and prepreg P3. The elastic modulus of the prepreg P1 is the same as or slightly smaller than that of the reinforcing fibers of the solid body 10 in the axial direction, or an intermediate elastic modulus between that of the solid body and that of the prepreg P2. The prepreg P2 is larger than the prepreg P1 and larger than the solid prepreg. Prepreg P
3 is larger than that of the prepreg P2 and larger than that of the solid body. The prepreg P2 and the prepreg P3 have a smaller resin ratio than the solid body, that is, a larger fiber ratio. This fiber ratio achieves weight reduction with less prepreg winding,
This is for securing the bending rigidity.

For each prepreg, a thin prepreg sheet having a thickness of about 0.1 mm or less can be used. This is preferable in that bending is prevented. The prepreg P1 in the above example may not be provided. That is, the prepreg sheet need not be wound up to the tip of the solid body. In addition, since the prepreg having the shape described above is wound, the number of times of winding on the base side increases, and the area L3
In this case, the diameter of the base portion side also becomes large, and the entire rod thus formed has a tapered front shape.

In the above example, carbon fiber is used as the main reinforcing fiber of the solid body, and its elastic modulus is 24 to
n / mm ² , the main reinforcing fiber of each prepreg is also a carbon fiber, and the prepreg P1 is 20 ton / mm ² ,
Prepreg P2 is 30 ton / mm ² , prepreg P3
Is 40 ton / mm ² . The reinforcing fibers of the solid rod 30 may be 100% carbon fibers. In this case, the bending rigidity of the rod can be easily increased, the weight can be reduced while the strength can be increased, and the difference in linear expansion coefficient is small because it is one kind of fiber, and the rod is unlikely to be bent at the time of heat molding. in this case,
The resins used are all epoxy resins, but other resins can be used with other reinforcing fibers. The elastic modulus of the solid reinforcing fiber is preferably selected from 50 ton / mm ² or less. This is because the strength is not significantly reduced in this range. Therefore, for example, 20, 24, 3
It is selected from 0, 40, 50 ton / mm ^2, and that of each prepreg is selected from the range of 5 to 80 ton / mm ² . In the case of 50 ton / mm ² or more carbon fibers, pitch-based fibers may be used. 5-8 solid fibers
It may be arbitrarily selected from the range of 0 ton / mm ² .

The length L12 of the solid rod is 1.8 m or more, preferably 2.0 m or more, and it is preferable to use a one-piece rod as illustrated. This is because it is easy to bend, and the strength can be increased while a large bend is possible. However,
In this case, the solid body may be connected to somewhere in the longitudinal direction to form a one-piece, or the prepreg may be connected to somewhere in the longitudinal direction. Around the outer periphery of the solid body 10 (any prepreg), an amount of circumferentially oriented reinforcing fibers necessary to prevent the large bent solid rod 30 from being torn may be provided.

The resin ratio of each prepreg which is the outer portion of the solid rod 30 is at least 10 wt% less than the resin ratio of the solid body 10 which is the central portion. Despite the weight reduction of the rod 30, the bending rigidity and strength can be improved. The resin ratio (wt%) of the solid body is 25 or more and 50 or less, preferably 28
Each prepreg sheet is 10 or more and 28 or less.
Choose from less than. However, the above resin ratio of the solid body and the prepreg sheet may be reversed. Thereby, the flexibility of the solid rod 30 can be improved.
In addition, especially the reinforced fiber of the prepreg sheet, a fiber having a small elastic modulus such as glass fiber instead of carbon fiber,
Regardless of the type of fiber, it is possible to improve the flexibility by arranging it in the circumferential direction or the inclined direction.

FIG. 3 shows a solid rod 30 'grip GP.
(Or the handle portion), the base portion 30B of the solid rod is reduced in diameter to be inserted and connected to the rod main body 30A having a thin front tapered shape coming out of the grip GP by a front thick tapered portion 30C. It has a connected shape. The diameter reducing portion 30B may remain the solid body 10 or may be wound with a prepreg sheet. Further, as in the case of the solid rod shown in FIGS. 1 and 3, only the front portion of the handle portion or the grip portion is inserted and the rear portion thereof is formed in a hollow, so that the weight can be reduced.

FIG. 4 is a longitudinal sectional view of a fishing rod using a solid body according to another embodiment of the present invention. FIG. 5 is an explanatory view of the solid rod forming method of the fishing rod of FIG. The solid body 1 is formed in advance by using reinforcing fibers 10K oriented in the axial direction direction as carbon fibers and using an epoxy resin as an example of a matrix resin.
0 is formed by firing, and depending on the firing shape, for example, the region L2 from the intermediate portion to the tip portion is formed into a tapered shape by grinding or polishing. In this case, the remaining region L3 has a straight shape or a gentle tapered shape. Thereafter, a prepreg sheet 12 ′ cut into a trapezoidal shape is wound around a predetermined range on the base side of the solid body 10.
The resultant is baked again for about 0 minutes to form a solid rod 30 ″ in which the prepreg winding layer 12 is integrated on the surface of the solid body 10.

The axial length reinforcing fibers 12K used for the prepreg 12 'are carbon fibers having a smaller elastic modulus than the carbon fibers 10K, and the resin is epoxy resin which is the same kind of resin. The ratios are different, for example,
The resin ratio of the solid body is 28 to 40% by weight, and the resin ratio of the prepreg is 10 to 28% by weight. In addition, although the heat-curing treatment is performed in two stages, it is easy to integrate because the same type of resin is used, and the difference in the coefficient of linear expansion is small because the longitudinal reinforcing fibers are carbon fibers. Bending deformation of a solid rod material cooled after heat molding is unlikely to occur. At the rear end of the solid rod, a handle 18 using, for example, a cork material or a foaming material as a grip portion is adhesively fixed.
In this example, a reel mounting member (not shown) is provided on the handle portion.

The prepreg winding layer 12 is not formed in the region of the leading end portion L1 of the solid rod. The prepreg wound layer 12 is in the state of the baked solid body 10 or in a state of grinding and polishing. In this example, resin coating is applied to the entire front region of the handle portion 18 including the front end region of the solid rod, and in the front end region L1, the carbon fiber of the axial length direction reinforcing fiber of the surface portion is ground, for example, by grinding or polishing. Are cut, they are coated to prevent peeling and tearing. Although the prepreg winding layer 12 is not shown to be formed up to the rear end of the solid body 10, it may be formed up to the rear end.

Since the elastic modulus of the carbon fibers of the reinforcing fibers in the axial direction of the solid body 10 is large and that of the prepreg winding layer 12 is small, the carbon fiber is located before and after the boundary between the front region L1 and the prepreg winding layer 12. In this case, a sudden change in rigidity is prevented, the bending becomes smooth, stress concentration is prevented, and breakage is prevented. Further, in this embodiment, the feet of the fishing line guide 14 are disposed around the boundary, and the feet are wound and fixed by the thread 16. As a result, the boundary is reinforced, and breakage at this portion is more effectively prevented.

Prepreg 1 to be wound around solid body 10
By devising the dimensional shape of 2 ′, the thickness of the prepreg layer 12 near the boundary is formed as thin as possible, and the rear is made thicker, that is, the prepreg sheet is trapezoidal,
If the vicinity of the boundary portion is formed by one winding and the rear portion is formed to have such a size as to increase the number of times of winding, it is easier to effectively prevent stress concentration. In addition, it is preferable that the tip region L1 is set to be less than half the length of the solid body 10, and in this embodiment, it is approximately half of the tapered tapered region L2. Prepreg winding layer 1 in region L4
No. 2 is useful for preventing peeling of cut fibers on the surface of the solid body.

In the above embodiment, the prepreg 12 '
Is an example of one sheet, but in addition, solid carbon fiber 1
Under the condition of the elastic modulus of 0K or less, another prepreg having a carbon fiber as an axial direction reinforcing fiber having an elastic modulus larger than the elastic modulus of the carbon fiber 12K of the prepreg 12 ′, the tip edge of the prepreg 12 ′ from the prepreg 12 ′. May be set on the rod base side and wound on the upper side, and these may be formed by heat molding. In this way, under the condition of obtaining the same bending rigidity, the body can be further thinned. The above is preferable, but another prepreg having a carbon fiber or the like as an axial direction reinforcing fiber having an elastic modulus exceeding the elastic modulus of the solid carbon fiber 10K is set with its leading edge closer to the pole than the prepreg 12 '. It can also be rolled up on top and heat molded.

[0023]

As is apparent from the above description, claim 1
According to this, it is possible to provide a fishing rod that can comfortably fish even when the angler's physical strength is small, even when catching a big fish or a fish with a strong pulling action. According to the second aspect, it is possible to provide a fishing rod having a solid rod rod in which bending before and after the front end edge of a prepreg wound on a solid body is smooth, stress concentration hardly occurs, and bending of a molding material hardly occurs. Is possible, and
The diameter and weight can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view of a fishing rod according to one embodiment of the present invention.

FIG. 2 is an explanatory diagram of a method of manufacturing the fishing rod of FIG.

FIG. 3 is a main part view of another embodiment of the fishing rod according to the present invention.

FIG. 4 is a longitudinal sectional view of a fishing rod according to another embodiment of the present invention.

FIG. 5 is an explanatory diagram of a method of manufacturing the fishing rod of FIG. 4;

[Explanation of symbols]

 Reference Signs List 10 solid body 10K axially reinforced carbon fiber 30, 30 ', 30 "solid rod 12', P1, P2, P3 prepreg sheet

Claims (2)

[Claims] 1. A fiber-reinforced resin prepreg in which reinforcing fibers are aligned in one direction mainly on a surface of a solid body in which a resin is used as a matrix and which is reinforced mainly with reinforcing fibers oriented substantially in the axial direction, and A fishing rod characterized by comprising a solid rod having an area wound and integrated so as to be directed substantially in the axial direction from the vicinity of the base of the fishing rod to the tip of the fishing rod. 2. A coating film is applied to a surface of a front part of a solid body reinforced mainly with carbon fibers oriented substantially in an axial direction with a resin as a matrix, and the surface of the solid body excluding the front part is coated with a coating film. A region in which a prepreg having a resin ratio smaller than the resin ratio of the solid body is wound and integrated using mainly carbon fibers having an elastic modulus equal to or less than the elastic modulus of the carbon fibers as the axial direction reinforcing fibers. A fishing rod having a solid rod provided.