JP5517512B2 - fishing rod - Google Patents

Description

  The present invention relates to a fishing rod.

Regarding fishing rods, when a fish hits, it is required that the vibrations of that hit be efficiently transmitted to the angler as fish.
For this purpose, an accelerometer is attached to the tip of the tip of the head, and the signal from the fish hit captured by the accelerometer is amplified by an amplifier, and the amplified signal is applied to the vibration generating member provided at the grip portion of the hand side housing. In addition, there is a configuration in which a vibration generating member is vibrated to be sensitively sensed by an angler (Patent Document 1).

Japanese Utility Model Publication No. 3-13194 (page 18, column 2, lines 18 to 26, FIG. 1)

As described above, it is also important that the fish bean is efficiently captured and quickly operated.
However, on the other hand, suppressing unpleasant vibrations that come to hand when a fish is caught is also of interest to anglers who want to lighten the rod operation.
In other words, when a fish catches a needle, the primary mode vibration wave that becomes the fish signature unique to the fish and the high frequency with a frequency that is an integer multiple of the frequency of the primary mode vibration wave. The next mode vibration wave may be superimposed and transmitted.

  Such higher-order mode vibration waves cause discomfort to the angler's hand holding the grip of the hand side rod body, increase the sense of weight of the angler holding the fishing rod, and improve the lightness of the rod operation. It needed a means to suppress it from the point of causing damage and fatigue.

  In consideration of such points, as described above, when a fish hit is sensed as an electrical signal and is amplified and transmitted to the angler's hand, the unpleasant higher-order mode vibration Since the waves are also amplified and transmitted, there is a risk of affecting fishing operations.

  An object of the present invention is to provide a fishing rod that can suppress the transmission of higher-order mode vibration waves that give discomfort to the proximal housing.

〔Constitution〕
The characteristic configuration of the invention according to claim 1 is a fishing rod in which a plurality of rods are connected,
A plurality of vibration waves are generated in the fishing rod by the pulling force of the fish given to the tip of the tip of the rod body, and the frequency of the primary mode vibration wave transmitted as a fish signal among the plurality of vibration waves In order to suppress the propagation of higher-order mode vibration waves exhibiting an integral multiple of the frequency, a vibration suppression body that changes the natural frequency of the chassis is attached to the heel tip of the proximal chassis of the plurality of chassis and it is in Aru point, the effects thereof are as follows.

[Function and effect]
That is, by providing the vibration suppressing body at an appropriate portion of the fishing rod, the natural frequency of the fishing rod can be changed to a frequency different from the frequency of the higher-order mode vibration wave. Thereby, it can suppress that a higher-order mode vibration wave is transmitted to the hand of the angler who holds a fishing rod, and an angler does not feel much discomfort. Therefore, the burden on the hand holding the fishing rod is reduced, and a light fishing operation can be performed.

As a technique for setting the natural frequency of the fishing rod to a frequency different from the frequency of the higher-order mode vibration wave, it is necessary to attach a vibration suppressor to the antinode position of the higher-order mode vibration wave. There are a plurality of abdominal positions, and the tip of the tip is also an abdominal position. It is also conceivable to attach a vibration suppression body to the tip of the tip .

However, in that case, the tip of the fishing rod becomes heavy, so the feeling of weight is great, and the burden on the angler with the fishing rod is great.
Therefore, in the present invention, the heel tip portion of the proximal skeleton located on the heel side at a plurality of abdominal positions is selected, and the vibration suppressing body is attached to the heel tip portion. As a result, it was possible to provide a fishing rod that suppresses unpleasant high-order vibration waves, reduces the weight, and reduces the burden on the angler holding the fishing rod .

〔Constitution〕
The characteristic configuration of the invention according to claim 2 is that the vibration suppressing body is a prepreg having a high specific gravity .

  Since the vibration suppression body is a prepreg, it is composed of the same prepreg material as the fishing rod body, and the process of mounting the vibration suppression body can be incorporated into the flow of the process of manufacturing the fishing rod. It was possible to avoid a decrease in production efficiency due to the mounting.

It is a whole side view which shows a fishing rod. It is the vertical side view which shows the state before the coupling | bonding of a former and a former fence, and shows the state which has given the vibration suppression body to the mouth of the former fence. FIG. 5 is a side view showing an apparatus for measuring the vibration state of the main rod when a weight corresponding to the pulling force of the spatula is suspended from the tip and the weight is forcibly vibrated at a predetermined frequency.

A spatula rod will be described as an example of the fishing rod A.
As shown in FIG. 1, the fishing rod A is composed of the following rods, and each rod includes a tip rod 1, a second rod 2, a base 3, and a grip portion 4B to which a fishing line a is attached. It is comprised with the base fence 4 as a near side housing provided.

The spear 1 and the second bowl 2, the second bowl 2 and the former 3, and the upper 3 and the former 4 are connected by an inlay joint type. Accordingly, the relationship between the base 3 and the base 4 will be described. As shown in FIG. 2, the spigot core 4a is extended from the base 4A of the base 4 and inserted into the butt end opening 3A of the base 3. Configure to be connectable.

Although the casing is not shown, it is manufactured by the following manufacturing method.
A prepreg sheet is formed by impregnating reinforcing fibers such as carbon fibers and glass fibers in one direction with a thermosetting resin such as epoxy or a thermoplastic resin such as PET. In addition, you may comprise a prepreg sheet | seat using a bulk mold method and a sheet mold method. The prepreg sheet is cut into a predetermined shape to form a main pattern. In addition, in order to reinforce the butt end or the like, a reinforcing pattern or the like having a shorter length than the main pattern may be wound around the heel side end or the butt end side of the main pattern. Instead of the prepreg sheet, a thin prepreg tape may be wound and used.

As the main pattern, a first layer in which reinforcing fibers are aligned in the circumferential direction, a second layer in which reinforcing fibers are aligned in the axial direction, and a third layer in which reinforcing fibers are aligned in the circumferential direction are aligned. These are overlapped and wound around a mandrel, or sequentially wound around a mandrel and laminated to form a cylindrical body. A cylindrical body is baked integrally with a mandrel, and after the mandrel is decentered, it is cut into a predetermined length and subjected to a polishing process to constitute a bag material.
On the outer surface of the bag material, a decorative layer 8 is formed by brushing or handling the paint, or using a thin film manufacturing technique such as PVD or CVD such as vacuum vapor deposition to form the frame.

Next, the vibration suppressing body 5 will be described. The vibration suppression body 5 is a high-specific gravity prepreg material, in which a metal powder such as tungsten is mixed with glass scream impregnated with an epoxy resin. The high specific gravity prepreg material is about 500 to 600 g / m ² and about 0.1 mm to 0.15 mm in thickness.
As the matrix resin of the high specific gravity prepreg material, urethane resin or the like can be used.

In general, the fishing rod A has a plurality of natural frequencies due to the rod diameter, the rod length, the rigidity, and the like of the fishing rod A. The natural frequency can be known by supporting the fishing rod A in a cantilever manner, applying vibration to the tip of the tip rod with an impact hammer or the like, and measuring the vibration.
Accordingly, there are a plurality of natural frequencies for fishing rod A.

The vibration suppressing body 5 suppresses unpleasant vibrations acting on the fishing rod A when a fish is caught, and the unpleasant vibration waves are higher-order that exhibits an integer multiple of the frequency of the primary mode vibration wave. It is a mode vibration wave.
In other words, as described above, when a fish is caught, the fishing rod has a secondary mode having a frequency that is an integral multiple of the frequency of the primary mode vibration wave, in addition to the primary mode vibration wave that propagates as a fish fish signal, A third-order higher-order mode vibration wave is superimposed and propagates.

Here, when secondary and tertiary higher-order mode vibration waves having a frequency that is an integral multiple of the frequency of the first-order mode vibration wave are propagated to the marshals, the angler's hand holding the grip portion 4B feels uncomfortable. give.
Therefore, the vibration suppressor 5 is applied by the method described below so that the natural frequency of the fishing rod A does not coincide with the unpleasant frequency.

The measuring apparatus B used when selecting the position where the vibration suppressing body 5 is wound will be described.
As shown in FIG. 3, the base end portion of the main rod 4 of the fishing rod A is attached to the support base 6. The fishing rod A is extended in a cantilever state attached to the support base 6, and a weight W corresponding to the fish pulling force (not weight) is suspended from the tip of the tip rod 1. A pickup type acceleration sensor 7 for detecting the vibration acceleration of the base end portion is provided at the base end portion of the fishing rod A supported by the support base 6.

The measuring device B as described above is provided, and the vibration characteristics of the fishing rod A are examined in order to select a predetermined position where the vibration suppressing body 5 is wound as follows.
(1) The fishing rod A is vibrated by applying forced vibration having a predetermined frequency to the weight W.
(2) As a frequency (input side) of forced vibration, 1 Hz to 50 Hz is sequentially added to the weight W, and the vibration acceleration (output) at the base end is measured by the acceleration sensor 7.
(3) For example, the weight W is forcibly vibrated at 20 Hz corresponding to the frequency of the higher order mode vibration wave of the frequency of pulling the spatula. In this case, when the vibration acceleration on the output side is measured by the acceleration sensor 7 and the measured vibration acceleration is plotted on the time axis, the vibration state of the fishing rod A corresponding to the frequency 20 Hz appears. Vibration acceleration appears with different amplitude and 180 ° phase. If a resonance state that vibrates greatly in this measurement state appears, it means that the natural frequency of the fishing rod A matches the frequency of 20 Hz.
(4) Then, as will be described later, in order to set the natural frequency of the fishing rod A to a different frequency, the vibration suppressing body 5 is attached to an appropriate part of the fishing rod A.

Incidentally, the pulling force of the spatula is assumed to be around 100 g, and the pulling frequency is assumed to be 9 to 10 Hz. Therefore, this pulling frequency is transmitted as fish faith, and the pulling frequency is referred to as the frequency of the primary mode vibration wave. The frequency at which the angler feels uncomfortable is 18-20 Hz (2 times) which is an integer multiple of the frequency of the primary mode vibration wave, or 27-30.
A vibration wave having a frequency of Hz (three times) can be assumed.

Therefore, when either the natural frequency of the fishing rod A or the like matches the frequency of the higher-order mode vibration wave, the fishing rod A enters a resonance state and the higher-order mode vibration wave is transmitted to the angler. As a result, the higher-order mode vibration wave is transmitted to the hand, and the angler feels uncomfortable.
Therefore, the vibration suppression body 5 is set so that either the frequency of the vibration wave of the higher-order mode vibration wave 18 to 22 Hz (2 times) or 27 to 30 Hz (3 times) does not coincide with the natural frequency of the fishing rod A or the like. Is installed.
Note that the frequency of fish pulling has been confirmed for each fish, and is generally around 10 Hz in the case of a spatula and around 20 Hz in the case of a salmon.

The installation position of the vibration suppression body 5 can be any position on the fishing rod A. This is because the natural frequency of the fishing rod A changes accordingly. And it is also conceivable to attach to the tip of the tip 1 having the largest amplitude (abdominal part) in the higher-order mode vibration wave.
However, when the vibration suppression body 5 is attached to the tip 1, the tip side becomes heavy and the weight is increased. Therefore, as a measure for eliminating the weight, the vibration suppressing body 5 is attached to the heel tip (tall) 4A portion of the base 4.

  The above-described method is merely an example. Actually, a specific frequency is given to the tip of the tip 1 and the angler is uncomfortable by analyzing a plurality of vibration waveforms generated in the fishing rod A each time with a frequency analyzer. The frequency to be felt is identified, and the vibration mode is determined from the frequency to calculate the position where the vibration becomes antinode. By disposing the vibration suppressing body 5 at the position of the stomach, it is possible to suppress the vibration wave that the angler feels uncomfortable from being transmitted to the hand.

The specific configuration of the heel tip portion 4A of the base rod 4 to which the vibration suppressing body 5 is applied is as follows.
As shown in FIG. 2, the vibration suppressing body 5 made of a high specific gravity prepreg is wound around the outer peripheral surface of the above-described saddle material in the production stage on the way to the base rod 4. A decorative layer 8 is formed on the base side of the vibration suppressing body 5 so as not to cause a step with the vibration suppressing body 5. In addition, a decorative portion 9 resembling a bamboo node is formed on the outer peripheral surface of the vibration suppressing body 5 by using a paint or the like used for the decorative layer 8. The reason why the decorative portion 9 is formed is to resemble the bamboo rod which is the ideal shape of the fishing rod A.

[Another embodiment]
(1) Position of attaching the vibration suppressing member 5 in Risao A fishing is not only one place, in the high-order mode vibration wave may be provided in the belly position of the plurality of locations.

(2) As the high specific gravity metal mixed in the high specific gravity prepreg constituting the vibration suppressing body 5, a high specific gravity metal such as molybdenum may be used in addition to tungsten.

(3) As the vibration suppressing body 5, a ring body or a plate material of a light metal such as aluminum or titanium may be used.

  The present invention can be used not only for spigot joints but also for joint spears and swing spears.

1 Hot point candy (body)
2 Nibanban (body)
3 Yuan (enclosure)
4 Genroku (hand side housing)
4A rod tip 5 vibration suppression body A fishing rod

Claims (2)

A fishing rod connecting a plurality of rods,
A plurality of vibration waves are generated in the fishing rod by the pulling force of the fish given to the tip of the tip of the rod body, and the frequency of the primary mode vibration wave transmitted as a fish signal among the plurality of vibration waves In order to suppress the propagation of higher-order mode vibration waves exhibiting an integral multiple of the frequency, a vibration suppression body that changes the natural frequency of the chassis is attached to the heel tip of the proximal chassis of the plurality of chassis A fishing rod. The fishing rod according to claim 1 , wherein the vibration suppressing body is a prepreg having a high specific gravity .

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