JP4540894B2 - Fishing rod with reel mounting part - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fishing rod having a reel mounting portion.
[0002]
[Prior art]
In a fishing rod type in which a reel is mounted, it is necessary to provide a fixed hood portion and a movable hood portion in the rod body. In this case, a rail portion and a fixed hood portion that guide the movable hood portion so as to be movable in the longitudinal direction of the bag can be provided integrally with the bag body by injection molding of synthetic resin or the like. However, since this is generally expensive, a cylindrical reel seat body having a rail part and a fixed hood part is usually formed as a separate part by injection molding or the like, and this is later used as a bag body. A method of inserting and fixing is adopted. A fishing rod provided with a reel mounting portion in this way is disclosed, for example, in Japanese Utility Model Publication No. 7-37501. In the fishing rod disclosed in this publication, the cylindrical reel sheet main body 2 is positioned with its tip abutting against the built-up portion 8 integrated with the rod main body 1.
[0003]
[Problems to be solved by the invention]
When this build-up is made of paint, it does not reinforce the bending strength of the heel, and the reel mounting part where the heel body and the cylindrical reel sheet body overlap improves the bending strength. The stress concentration due to the bending of the heel occurs at the portion immediately before the cylindrical reel sheet main body. Further, when the build-up is made of the same material as the cocoon body, the strength of the cocoon is strengthened, and the build-up part is improved in strength. However, the part immediately after the build-up part is the same as the form in which the heel is reduced in a stepped shape, and when the heel is bent, stress is concentrated here, and this part竿 杆 Strength improvement is a problem. Further, when the cylindrical reel sheet main body is bonded and fixed to the bag, it is necessary to sufficiently fill the adhesive. Therefore, an object of the present invention is to prevent stress concentration at the step-shaped reduced diameter portion of the collar body and to improve the design flexibility of the grip portion fitting portion in the reel mounting portion.
In addition, it aims at weight reduction.
[0004]
[Means for Solving the Problems]
In view of the above-described object, in claim 1 of the present invention, in a fishing rod having a reel mounting portion, a predetermined position corresponding to the reel mounting portion of the rod main body is reduced in a step shape with respect to the front region thereof. The step-like reduced diameter portion has a larger diameter than the rear region thereof, and provides a fishing rod characterized in that a fitting portion of a grip portion is fitted on the outside of the rear region.
After the step-like reduced diameter portion, the step-like reduced diameter portion has the largest diameter, so that the rigidity can be increased and stress concentration can be prevented. Further, the rear region has a relatively small diameter, is not more rigid than necessary, and is not wasteful. In addition, the fitting part of the grip part is fitted on the outer side of the rear area, but since the rear area has a small diameter, the fitting part can be reduced in size and size, and the degree of freedom in designing the grip part including the fitting part is increased. improves.
[0005]
According to a second aspect of the present invention, there is provided the fishing rod according to the first aspect, wherein the proximal region after the step-shaped reduced diameter portion has no stepped portion.
Since the proximal region after the step-shaped reduced diameter portion does not have a step portion, there is no other than a taper portion and a partial straight portion, and it is difficult to cause inadvertent stress concentration.
The fishing rod according to claim 1 or 2, wherein the thickness of the rod main body in the rear region of the step-shaped reduced diameter portion is less than or equal to the thickness of the rod main body thickness of the step-shaped reduced diameter portion. provide.
Since the rear region is equal to or less than the thickness of the stepped reduced diameter portion, it contributes to weight reduction.
[0006]
According to a fourth aspect of the present invention, in the fishing rod having the reel mounting portion, the predetermined position corresponding to the reel mounting portion of the rod main body is reduced in a step shape with respect to the front region thereof, and the steps subsequent to the step-like reduced diameter portion. The proximal region has a tapered shape that is reduced in diameter toward the rear, or is partially straight, and a cylindrical reel seat having an area in which the inner diameter is reduced toward the rear is formed on the outer side of the bag body from the rear end. Provided is a fishing rod characterized by being fitted and adhesively fixed.
Since the proximal region after the step-shaped reduced diameter portion of the heel body is tapered toward the rear or partially straight, at least the inner periphery of the cylindrical reel seat or the outer periphery of the heel body Applying adhesive and inserting a cylindrical reel sheet having a region whose inner diameter is reduced from the rear end toward the rear from the rear end of the bag body, the adhesive region is left in a sufficiently left state. The main body and the cylindrical reel sheet face each other and have a strong adhesive action, and the step-shaped reduced diameter portion has the largest outer diameter and is bent in the proximal region after the step-shaped reduced diameter portion of the main body. It will prevent stress concentration at the time.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail based on an embodiment shown in the accompanying drawings.
FIG. 1 is a side view of an essential part of a fishing rod according to the present invention, and FIG. 2 is a longitudinal sectional view thereof. A cylindrical reel sheet 12 made of synthetic resin or fiber reinforced resin is placed in a predetermined region of a fiber reinforced resin bag body 10 made of a synthetic resin such as epoxy resin as a matrix and reinforced with reinforcing fibers such as carbon fibers. It is inserted into the outside of the main body from the rear end and fixed with an adhesive. Further, the grip portion 14 is fitted and fixed to the outer side behind the rear portion.
[0008]
At the predetermined position of the heel body, the outer diameter gradually expands from the outer periphery of the heel body in the front region, forming a bulging portion 10A that increases toward the rear, and immediately after that, the outer diameter sharply decreases. A step-shaped reduced diameter portion 10B is formed. The hand side regions 10B, 10C, and 10D after the step-like reduced diameter portion are reduced in diameter toward the rear as a whole, and the outer diameter D1 of the step-like reduced diameter portion is the largest. However, for example, the outer diameter of the end side region 10D which is also a part of the region behind the stepped reduced diameter portion 10B may be made straight. The length L of the bulging portion 10A is preferably 30 to 100 mm. If the length is longer than this, the flexural rigidity of the bulged portion region becomes too high, the stress concentration on the stepped diameter-reduced portion 10B becomes too strong, and below this, the diameter suddenly changes, and damage occurs immediately before the bulged portion. It is likely to occur.
[0009]
A fixed hood 12A is provided at the front portion of the cylindrical reel sheet 12, and a moving hood 12B is provided at a rear position thereof. Further, the cylindrical reel sheet whose inner diameter is reduced from the front end to the rear end is fitted on the outer side of the collar body from the rear end of the collar body, and the boundary wall surface between the step-shaped diameter-reduced portion 10B and the bulging portion 10A. It is bonded and fixed with its tip abutting on it.
[0010]
When assembling, an adhesive is preliminarily applied to the outer periphery of the region 10C of the rod body, and when the cylindrical reel sheet 12 is fitted from the rear end of the rod tube body, the outer diameter of the region 10C is smaller toward the rear. Since the inner diameter of the cylindrical reel sheet 12 is larger toward the front, the pre-applied adhesive is prevented from being scraped off during the fitting operation, and the outer periphery of the region 10C and the inner periphery of the cylindrical reel sheet 12 are prevented. Adhesive fixing can be performed with a sufficient adhesive in between.
[0011]
Furthermore, since the fishing rod receives a large deflection load, generally stress concentration occurs in the stepped reduced diameter portion 10B. Here, the stepped reduced diameter portion is the largest in the proximal region after the stepped reduced diameter portion. In this example, since the thickness of the proximal region after the step-shaped reduced diameter portion is substantially constant, the step-shaped reduced diameter portion 10B has high rigidity and stress concentration is reduced. Is prevented. Furthermore, since the outer diameter of the proximal region after the step-shaped reduced diameter portion is reduced toward the rear and the wall thickness is substantially constant, the proximal region has a straight shape with the outer diameter D1 of the step-shaped reduced diameter portion 10B. Compared with the case where it is formed, it is lighter. However, the wall thickness does not need to be substantially constant, and may be made thinner or thicker toward the rear as in the case of FIG. 4 described later.
[0012]
Since the outer diameters of the hand side regions 10B, 10C, and 10D after the step-like reduced diameter portion are reduced toward the rear, the region 10D into which the fitting portion 14K of the grip portion 14 is fitted is a region of the hand side region. It has the smallest outer diameter. Therefore, since the fitting part 14K of the grip part 14 can be reduced in diameter, the design freedom of the grip part 14 including the fitting part is improved.
[0013]
The cylindrical reel sheet is made of synthetic resin or fiber reinforced resin, but in order to prevent stress concentration on the flange main body 12 at the end of the cylindrical reel sheet, a synthetic resin made of a softer material than the flange main body is used. It is preferable to form. Further, in the state where there is no cylindrical reel sheet 12, an imaginary fishing rod in which a grip portion 14 made of fiber reinforced resin mainly using carbon fibers as reinforcing fibers and epoxy resin as a matrix resin and the rod body 10 are joined, If the region 10C corresponding to the cylindrical reel sheet 12 is more easily bent than the grip portion 14, the cylindrical reel sheet 12 may be formed of polyamide (nylon (trade name)) or a synthetic resin having an elastic modulus equal to or less than this. When an actual fishing rod equipped with this cylindrical reel seat is subjected to a large bending force close to destroying the rod, the angler can detect the deformation of the cylindrical reel seat portion earlier than the grip portion. The rod can be operated so as not to damage the fishing rod.
[0014]
Further, when the cylindrical reel sheet 12 is inserted and fitted in the proximal region after the step-shaped reduced diameter portion, and the inner diameter of the cylindrical reel sheet is constant, the cylindrical reel sheet and the bag body If the leading end of the cylindrical reel sheet is formed thicker than the rear end, the breakage such as cracks may occur even if the step is reduced in size. It is easy to prevent.
Furthermore, the difference between the outer diameters D1 and D2 of the collar body located at the front end and the rear end of the cylindrical reel sheet 12 is about 0.2 to 2.0 mm (preferably 0.5 to 2.0 mm). good. If the difference is smaller than 0.2 mm, the effect of the present application is not obtained. If the difference is larger than 2.0 mm, the operability as the handle portion including the grip portion and the reel mounting portion is deteriorated.
[0015]
If the difference in diameter between the outer diameter of the region 10C of the bag main body and the inner diameter of the cylindrical reel sheet 12 is about 0.1 to 0.6 mm, the adhesive can be placed at the fixed position, which is preferable. Moreover, it is preferable to have such a diameter difference in a length range of 50 to 80% of the length of the cylindrical reel sheet 12.
[0016]
FIG. 3 is a modification of FIG. The difference is that the rear end side outer surface 10AS of the bulging portion 10A ′ is straight, and in this case as well, the step-shaped reduced diameter portion 10B has a larger diameter than the rear as in the case of FIG. Therefore, the step-like reduced diameter portion is strong against stress concentration. Thus, in the present application, the outer peripheral contour of the bulging portion has various forms.
[0017]
The radius difference t between the bulging portion and the stepped reduced diameter portion is preferably about 0.4 to 1.1 mm. This is because if the thickness is smaller than 0.4 mm, the stepped portion may be torn, and if the thickness is larger than 1.1 mm, the stress concentration becomes large. About 0.5 to 1.2 times the thickness T1 of the stepped reduced diameter portion 10B is preferable. The matter relating to the radius difference t is not limited to this example, but is a general matter applicable to other examples.
[0018]
FIG. 4 shows another modification. The difference from FIG. 2 is that the inner diameter of the proximal region after the step-shaped reduced diameter portion is substantially the same straight shape (tapered) as the inner diameter d1 of the step-shaped reduced diameter portion. Therefore, the thickness of this region is the maximum thickness T1 of the step-shaped reduced diameter portion, and the thickness behind the step is gradually reduced. Therefore, it contributes to further weight reduction than the case of FIG.
[0019]
FIG. 5 shows another modification of FIG. The difference is that the region 10C in the case of FIG. 2 is divided into two straight regions 10C1 and 10C2 in the region on the proximal side after the step-shaped reduced diameter portion, and the straight region has a substantially constant inner diameter. The outer diameter of each of the regions 10C1 and 10C2 is smaller in the rear region 10C2, and a step is generated at the boundary between the regions. Accordingly, the thickness of the region 10C1 is thicker and the thickness of the rear region 10C2 is thinner. However, since the outer diameter of the rear region 10C2 is straight, unlike the case of FIG. 4, it is not necessary to extremely reduce the thickness of the rear end portion of the proximal region after the step-shaped reduced diameter portion. The thickness of the region 10D is substantially the same as that of the region 10C2.
[0020]
The boundary position between the regions 10C1 and 10C2 is preferably about the middle position between both hoods. The middle finger of the hand when gripping the reel mounting part is generally located in front of the middle between the two hoods, and even if the middle finger position is a fulcrum for holding the fishing rod and the fishing rod is bent, This is because the presence of the region 10C1 improves the durability and stabilizes the fishing rod operation. In addition, when a fish is caught, the reel is pulled obliquely forward toward the rod through the fishing line. At that time, the rod body is crushed through the cylindrical reel seat 12 by the front portion of the reel leg. However, since the heel body region 10C1 of the pressed portion is thick, the crushing strength is improved.
[0021]
On the other hand, the inner periphery 12H of the cylindrical reel sheet 12 has a small diameter difference of about 0.1 mm in the region facing the region 10C1, and has a large diameter difference of about 0.6 mm in the region facing the region 10C2. ing. Accordingly, the adhesive is sufficiently left in the region 10C2, and the fixing force is secured.
[0022]
In the above example, the cylindrical reel sheet is formed separately from the rod main body and assembled to form a fishing rod. However, the present invention is not limited to this, and injection molding is performed on the molded rod main body. The cylindrical reel sheet may be integrated.
[0023]
【The invention's effect】
As is apparent from the above description, according to the present invention, in the reel mounting portion, it is possible to prevent stress concentration at the stepped diameter-reduced portion of the collar body and to improve the design flexibility of the grip portion fitting portion.
[Brief description of the drawings]
FIG. 1 is a side view of an essential part of a fishing rod according to the present invention.
FIG. 2 is a vertical cross-sectional view of the bag of FIG.
FIG. 3 is an enlarged view of a main part of a modification of FIG.
FIG. 4 is an enlarged view of a main part of another modification of FIG. 2;
FIG. 5 is a longitudinal sectional view of another modification of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 竿 杆 Main body 10A A bulging part 10B A step-shaped reduced diameter part 12 A cylindrical reel sheet 14 A grip part 14K A fitting part

Claims (4)

In a fishing rod having a reel mounting portion, a predetermined position corresponding to the reel mounting portion of the rod main body is reduced in a step shape with respect to the front region thereof, and the step reduced diameter portion is smaller than the rear region. A fishing rod having a large diameter, wherein a fitting portion of a grip portion is fitted on the outside of the rear region.   The fishing rod according to claim 1, wherein the proximal region after the step-shaped reduced diameter portion does not have a step portion. The fishing rod according to claim 1 or 2, wherein a thickness of the rod main body in a rear region from the stepped reduced diameter portion is formed to be equal to or less than a thickness of the rod main body thickness of the stepped reduced diameter portion. In a fishing rod having a reel mounting portion, a predetermined position corresponding to the reel mounting portion of the rod main body is reduced in a stepped shape with respect to a front region thereof, and a proximal region after the stepped reduced diameter portion is rearward A cylindrical reel sheet having a tapered shape that is reduced in diameter toward the rear or a part of which is straight and an inner diameter that is reduced in the rearward direction is fitted to the outside of the bag body from the rear end and bonded. A fishing rod characterized by being fixed.

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