JP7355595B2 - Parallel fishing rod - Google Patents

Description

The present invention relates to a parallel fishing rod.

Conventionally, in parallel fishing rods in which multiple rod rods are joined together, the joint configurations are either a straight connection in which the diameter of the rod rod at the connection point does not change, or a tapered connection in which the diameter of the rod rod at the connection point changes. It has been known. In the case of taper matching, the taper angle on the male side is generally set larger than the taper angle on the female side, as shown in Patent Document 1, for example.

Japanese Patent Application Publication No. 2011-115176

However, in conventional taper-matched side-by-side fishing rods, the male side taper angle is set smaller than the female side taper angle, so the male side end of the rod is connected to the female side end of the rod. There was a problem in that if the male rod was inserted too much, the end of the male rod would dig into the inner periphery of the female rod and become stuck.
Conversely, if the taper angle on the male side is large and the taper angle on the female side is large, the contact pressure between the male and female rod bodies at the joint will be insufficient, and the taper fixing force will be insufficient and the rod will come off. For example, repeated strong swings when throwing a tackle during cast fishing may cause it to become loose, causing the connecting rod to pop out and come off.
In addition, with straight-fitting side-by-side fishing rods, due to thermal expansion caused by temperature changes, it is difficult for the tip-side rod body to fit into the tip-side end of the rod base-side rod body when splicing, and it is also difficult to separate. Therefore, there was room for improvement in that respect.

The present invention has been made in consideration of these circumstances, and its purpose is to prevent the sticking caused by insertion, secure the fixing force of taper alignment, and prevent the rod tip side inserted into the rod base side rod body. To provide a parallel fishing rod capable of preventing the rod body from slipping out.

(1) The side-by-side fishing rod according to the present invention is a side-by-side fishing rod in which the rod base end of the rod tip side rod body is fitted into and connected to the rod tip side end of the rod base side rod body, and the above-mentioned A male taper is formed on the outer surface of the rod base side end of the rod tip side rod body, and the diameter of the male taper gradually decreases from the rod tip side toward the rod base side. A female taper is formed on the inner surface, the diameter of which gradually decreases from the rod tip side toward the rod base side, and the female taper is set to be shorter in length in the rod axis direction than the male taper. It is said that

According to the side-by-side fishing rod according to the present invention, since the female taper has a shorter length in the rod axis direction than the male taper, the outer surface of the rod base side end of the rod tip side rod body is closer to the rod base side rod body. The structure is such that it does not come into contact with the inner surface of the tip end. That is, the end of the male taper of the tip-side rod body is inserted into the female taper of the rod-base side rod body and penetrated toward the rod base side, and the two are tapered and fitted together. Therefore, in the present invention, the precision of taper alignment and the fixing force of taper alignment can be improved. Moreover, it is possible to fix the male taper at an appropriate taper alignment position without inserting the male taper too much into the female taper. In other words, as in conventional taper alignment where the male side taper angle is set larger than the female side taper angle, the male side end of the rod base side is inserted too far into the female side end side of the rod tip. This prevents the rod bodies from sticking to each other.
As described above, in the present invention, since the joining method is based on tapered alignment, it is possible to suppress the difficulty of insertion due to thermal expansion caused by temperature changes, and it is also possible to prevent sticking caused by conventional insertion. Furthermore, by matching the taper angles of the male taper and the female taper, the fixing force for taper alignment can be ensured, and the tip-side rod body inserted into the rod-base side rod body can be prevented from slipping out.

(2) The male taper and the female taper may have the same taper angle.

In this case, since the taper angles of the male taper and the female taper are the same, the fixing force for taper alignment can be more reliably secured, and the tip side rod body inserted into the rod base side rod body will not come out. can be prevented.

(3) The inner surface of the female taper of the rod base side rod body that is connected to the rod base side is set to be smaller than at least the taper angle of the male taper formed on the rod tip side rod body, and It is preferable that an end plug that comes into frictional contact with the inner surface of the rod base side rod body is provided at the bottom side end of the rod tip side rod body.

In this case, the end plug provided at the end of the rod tip side rod body comes into frictional contact with the inner surface of the rod base side rod body, so the male taper and female taper are tapered together and connected. It can create a sense of friction when matching.

(4) A step surface is formed on the rod tip side portion of the male taper to reduce the outer diameter and coated with a painted portion that is flush with the tapered surface of the male taper. A part of the painted part coated on the step surface may be fitted inside the female taper in a state where the tapers are tapered together.

In this case, when the male taper of the tip-side rod body is inserted into the female taper of the base-side rod body and joined together, the painted part of the tip-side rod body will fit inside the female taper. will be combined. At this time, the painted part is flush with the tapered surface of the male taper, allowing highly accurate taper matching, resulting in a good finished joint and improving the appearance of the parallel fishing rod. I can do it.

According to the side-by-side fishing rod of the present invention, it is possible to prevent sticking due to insertion, secure the fixing force of taper alignment, and prevent the tip-side rod body inserted into the rod-base side rod body from slipping out.

FIG. 2 is a partially cutaway side view of the jointed fishing rod according to the embodiment of the present invention, showing a state before the rod tip side rod body and the rod base side rod body are joined together. FIG. 2 is a side view showing a state in which the tip side rod body and the rod base side rod body are being joined together in FIG. 1; FIG. 2 is a side view showing a state in which the tip side rod body and the rod base side rod body are fitted together in FIG. 1;

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a parallel fishing rod according to the present invention will be described with reference to the drawings. In this embodiment, a fishing rod for cast fishing will be used as an example of the parallel fishing rod. Further, in each drawing, the scale of each component may be changed as necessary to make each component visible.

As shown in FIGS. 1 to 3, the side-by-side fishing rod 1 of this embodiment has a rod base side end 2a of a rod tip side rod body 2 inserted into a rod tip side end 3a of a rod base side rod body 3. This is a parallel rod that connects together.
Here, in the parallel fishing rod 1, the number of connected rod bodies is not limited to two, and may be three or more. In this embodiment, as the parallel fishing rod 1, each rod body is provided with a fishing line guide (not shown) as necessary, and the rod body on the hand side is provided with a reel as necessary. It is aimed at rods that can be used to enjoy fishing.

Here, in this embodiment, in the length direction of the parallel fishing rod 1, the tip side (left side in the drawing) is the rod tip, and the hand side (right side in the drawing) is the rod butt, and the length direction from the rod tip to the rod bottom is the rod tip. The front and rear direction is defined as the front side and the rear side as the rod tip side and the rod base side, respectively. Furthermore, in this embodiment, the direction in which the fishing rod goes around the rod axis O, which is the central axis of the fishing rod, is defined as the circumferential direction.
1 to 3 show the tip side rod body 2 as a side view and the rod base side rod body 3 as a longitudinal sectional view passing through the rod axis O.

The parallel fishing rod 1 is a rod rod in which both the rod tip side rod body 2 and the rod base side rod body 3 are made of fiber reinforced resin in which a synthetic resin matrix such as epoxy resin is reinforced with reinforcing fibers such as carbon fiber, Here it is a tubular rod.

The rod tip side rod body 2 includes a rod main body 20 and a connecting body 21 attached to the rod base side of the rod main body 20. A male taper 2A is formed on the outer surface of the rod base side end 2a of the connecting body 21, and the diameter thereof gradually decreases from the rod tip side toward the rod base side. The male taper 2A is located in a portion of the connecting body 21 closer to the rod base than approximately the center in the length direction. A painted portion 2B whose outer surface is painted is formed in a portion of the connecting body 21 closer to the rod tip than the male taper 2A. The painted portion 2B has an outer diameter that increases from the rod tip side toward the rod base side, and has a decreased outer diameter approximately at the middle of the length of the painted portion 2B, and is connected to the male taper 2A. The outer surfaces of the painted portion 2B and the male taper 2A are flush with each other.

The painted portion 2B of the connecting body 21 is coated with a predetermined thickness of paint 23, and is formed so that the coated paint 23 and the outer surfaces of the male taper 2A are flush with each other and smoothly continue. That is, the painted portion 2B has an outer diameter smaller than that of the male taper 2A, and is formed with a step surface 21a that is flush with the tapered surface of the male taper 2A and is covered with the painted portion 2B. In a state where the male taper 2A and the female taper 3A are tapered together, and a part of the painted part 2B (the part indicated by the reference numeral 2b) coated on the stepped surface 21a is inserted inside the female taper 3A (described later). (See Figure 3).

A female taper 3A is formed on the inner surface of the rod tip side end portion 3a of the rod base side rod body 3, the diameter of which gradually decreases from the rod tip side toward the rod base side. The female taper 3A is set to be shorter in length in the rod axis O direction than the male taper 2A. The taper angles θ1 and θ2 (see FIG. 1) of the male taper 2A and the female taper 3A are set to be the same. In the side-by-side fishing rod 1, the male taper 2A of the rod base side end 2a of the rod tip side rod body 2 is fitted into the female taper 3A of the rod tip side end 3a of the rod base side rod body 3.
Note that the taper angles θ1 and θ2 of the male taper 2A and the female taper 3A are, for example, about 2.0/1000.

The rod base side rod body 3 has a straight portion 3B on the inner surface of the rod tip side end portion 3a, which is formed in a continuous manner on the rod base side of the female taper 3A described above and whose inner diameter does not change. That is, the straight portion 3B forms an inner surface that extends parallel to the rod axis O in a cross-sectional view including the rod axis O of the rod base side rod body 3.

The tip of the male taper 2A is located inside the straight portion 3B of the rod base side rod body 3 in a state where it is fitted into the female taper 3A, and a relief portion 2c that does not contact the female taper 3A is formed.
For example, as shown in FIG. 3, the length dimension (combined dimension L1) along the direction of the rod axis O of the part of the connecting body 21 of the rod tip side rod body 2 that is inserted into the rod base side rod body 3 is 80 mm, The length dimension (reamer depth L2) of the female taper 3A along the rod axis O direction is set to 60 mm, and the relief dimension L3 is set to 20 mm. By providing this relief part 2c, the end of the connecting body 21 of the rod tip side rod body 2 does not come into contact with the inner circumference of the rod base side rod body 3, so that the tip side rod body 2 and the rod base side This prevents the rod body 3 from sticking together.

The rod base side end 2a of the rod tip side rod body 2 has a straight part 3B connected to the rod base side of the female taper 3A of the rod base side rod body 3, which is larger than the outer diameter of the rod base side end 2a. A frictionally contacting end plug 22 is provided.

The end plug 22 is formed of an elastic member such as rubber, is connected to the rod base side of the male taper 2A, and protrudes radially outward from the outer surface of the male taper 2A. In this embodiment, it protrudes over the entire circumference, but the invention is not limited to this, and at least one location around the circumference may protrude. The end plug 22 has a curved outer peripheral edge at a corner on the rod base side. The outer diameter of the end plug 22 is set to be slightly larger than the inner diameter of the straight portion 3B of the rod body 3 on the base side. For example, the outer dimensions of the end plug 22 are set larger, for example, by 0.1 mm than the inner diameter of the straight portion 3B.
When the male taper 2A of the rod tip side rod body 2 is inserted into the female taper 3A and joined together, the end plug 22 is located within the range of the straight portion 3B and is in contact with the inner surface of the straight portion 3B. Become.

Next, the operation of the parallel fishing rod 1 configured as described above will be explained in detail based on the drawings.
As shown in FIGS. 1 to 3, in the parallel fishing rod 1 according to the present embodiment, the female taper 3A is shorter in length in the rod axis O direction than the male taper 2A. The structure is such that the outer surface of the end portion of the side end portion 2a does not come into contact with the inner surface of the rod tip side end portion 3a of the rod base side rod body 3. That is, the rod base side end 2a of the male taper 2A of the rod tip side rod body 2 is inserted through the female taper 3A of the rod base side rod body 3 and penetrated to the rod base side, and the tapers are aligned and fitted. .

Therefore, in this embodiment, the precision of taper alignment and the fixing force of taper alignment can be improved. Moreover, the male taper 2A can be fixed at an appropriate taper alignment position without being inserted too far into the female taper 3A. In other words, since the outer surface of the rod base end 2a of the rod tip side rod body 2 does not contact the inner surface of the rod tip side end 3a of the rod base side rod body 3, sticking is prevented and the taper angle of the male side Since the taper angle on the female side is set to be the same, the surface pressure between the rod bodies can be maintained, and the taper fixing force can be maintained sufficiently.

As described above, since this embodiment uses a joining method based on taper alignment, it is possible to suppress the difficulty of insertion due to thermal expansion caused by temperature changes, and it is also possible to prevent sticking caused by conventional insertion. Furthermore, by matching the taper angles of the male taper 2A and the female taper 3A, the fixing force for taper alignment can be ensured, and the tip side rod body 2 inserted into the rod base side rod body 3 can be prevented from slipping out.

In addition, in this embodiment, since the taper angles θ1 and θ2 of the male taper 2A and the female taper 3A are the same, the fixing force for taper alignment can be more reliably secured, and the It is possible to prevent the rod tip side rod body 2 from slipping out.

In addition, in this embodiment, the inner surface of the straight part 3B that is larger than the outer diameter of the rod base end 2a and is connected to the rod base side of the female taper 3A is provided at the rod base end 2a of the rod tip side rod body 2. Since the end plug 22 is provided in frictional contact with the end plug 22, the end plug 22 provided in the bottom side end 2a of the rod tip side rod body 2 comes into frictional contact with the inner surface of the straight part 3B of the rod bottom side rod body 3. Therefore, a feeling of friction can be provided when the male taper 2A and the female taper 3A are tapered and joined together.

Furthermore, in this embodiment, when the male taper 2A of the rod tip side rod body 2 is inserted into the female taper 3A of the rod base side rod body 3 and joined together, the painted part 2B of the rod tip side rod body 2 becomes the female taper. It is fitted into the inside of 3A. At this time, the painted part 2B is flush with the tapered surface of the male taper 2A, and highly accurate taper alignment can be performed, so the finished state of the joint is good and the appearance of the parallel fishing rod 1 is improved. can be improved.

In the side-by-side fishing rod according to the present embodiment configured as described above, it is possible to prevent sticking due to insertion, and also to secure the fixing force of taper alignment, so that the rod tip side rod body 2 inserted into the rod base side rod body 3 can be You can prevent it from slipping out.

Although the embodiments of the parallel fishing rod according to the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. The embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. The embodiments and their modifications include, for example, those that can be easily imagined by those skilled in the art, those that are substantially the same, and those that are equivalent.

For example, in the above embodiment, the straight part 3B is formed on the inner surface of the female taper 3A of the rod body 3 on the rod base side, which is continuous to the rod base side, but it is limited to a straight surface. It is sufficient that a relief portion 2c that does not come into contact with the female taper 3A is provided on the rod base side of the male taper 2A. In short, it is sufficient that the taper angle is at least smaller than the taper angle of the male taper 2A formed on the rod tip side rod body 2. For example, it may be tapered inversely to the tapered surface of the male taper 2A. In other words, the reverse taper portion may be formed with a taper that gradually slopes away from the rod axis O as it goes from the rod tip side to the rod base side.

Further, in the above embodiment, the taper angles θ1 and θ2 of the male taper 2A and the female taper 3A are set to be the same, but the taper angles θ1 and θ2 of both are not necessarily the same.

Furthermore, in this embodiment, an end plug 22 is provided at the end of the rod tip side rod body 2 on the rod base side, which makes frictional contact with the inner surface (straight part 3B) of the rod base side rod body 3. , the rod tip side rod body 2 may omit this end plug 22.

Furthermore, in this embodiment, a step surface 21a is formed on the male taper 2A of the rod tip side rod body 2, and the step surface 21a is coated with the coating 23. Alternatively, the rod body may have a configuration that does not include the painted portion 2B. In order to prevent the coated coating 23 from peeling off when it is inserted into and removed from the female taper 3A, the opening end of the female taper 3A may be curved or a step greater than the thickness of the coating may be provided. The taper angle on the rod tip side of the male taper 2A may be made smaller, or a step greater than the thickness of the coating may be provided.

1 Side-by-side fishing rod 2 Rod tip side rod body 2a Rod base side end portion 2c Relief portion 2A Male taper 2B Painted portion 3 Rod base side rod body 3a Rod tip side end portion 3A Female taper 3B Straight portion 20 Rod body 21 Connecting body 21a Step surface 22 End plug 23 Paint O Rod shaft

Claims (5)

A side-by-side fishing rod in which the rod base side end of the rod tip side rod body is connected by fitting into the rod tip side end portion of the rod base side rod body,
A male taper is formed on the outer surface of the rod base side end of the rod tip side rod body, the diameter of which gradually decreases from the rod tip side toward the rod base side,
A female taper is formed on the inner surface of the rod tip side end of the rod base side rod body, the diameter of which gradually decreases from the rod tip side toward the rod base side,
The female taper is set shorter in length in the rod axis direction than the male taper,
A stepped surface is formed on the rod tip side portion of the male taper, and is coated with a painted portion that reduces the outer diameter and is flush with the tapered surface of the male taper;
A side-by-side fishing rod, wherein a part of the painted portion coated on the step surface is fitted inside the female taper in a state where the male taper and the female taper are tapered together. Claim 1 : An inner surface of the female taper of the rod base side rod body connected to the rod base side is set to be smaller than at least a taper angle of the male taper formed on the rod tip side rod body. The parallel fishing rod described in . 3. The side-by-side fishing rod according to claim 1 , wherein an end plug on the rod base side of the rod tip side rod body is provided with an end plug that makes frictional contact with the inner surface of the rod base side rod body . The side-by-side fishing rod according to claim 3, wherein at least a portion of the end plug protrudes radially outward from the outer surface of the male taper. the male taper and the female taper have the same taper angle;
The parallel fishing rod according to any one of claims 1 to 4 .

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