JPH0323094Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a bait feeding detector for fishing, and more specifically to a baiting detector for fishing that is useful for longline fishing and the like.

[Conventional technology]

Traditionally, in longline fishing, etc., after casting a line once,
The longline is pulled up after a certain period of time, such as 8 hours, regardless of whether there is a catch or not, but according to this fishing method, it is almost impossible to detect in advance whether or not there is a catch.

On the other hand, the applicant has proposed a device in which a floating body is attached to a fishing line so that feeding can be detected in advance during pole-and-line fishing, and fishing can be detected in advance by the irregular movement of the floating body during feeding. (Akira Jigan
60-175408).

[Problems with conventional technology]

However, even if the above-mentioned floating bodies are used in the longline fishing method, the floating bodies always move due to the wind and waves, and also rise and fall due to the influence of swells, so it is difficult to determine whether the movement of the floating bodies is due to feeding. As a practical matter, it is quite difficult, and there is a problem in that this discrimination is only possible when visibility is available, and it is almost useless when visibility is poor, such as in rain or fog.

[Problems solved by invention]

In consideration of the above-mentioned problems, this idea was developed to ensure that once a fish feeds and is hooked, it can be detected reliably even in rain, fog, night, etc. when visibility is poor, or in stormy weather. The purpose of this invention was to provide a fishing bait detector that could detect the presence or absence of fishing or the amount of fishing caught.

[Technology to solve problems]

That is, in the bait feeding detector for fishing of this invention, a power source and an ultrasonic transmitting circuit are sealed in a watertight container, and a vibrator operated by the ultrasonic transmitting circuit is mounted on the outer surface of the watertight container through a molding material. At the same time, a magnetically sensitive switching element for activating the ultrasonic transmitting circuit is arranged and fixed on the inner wall of the watertight container, and a magnet is removably attached to the outer wall of the watertight container corresponding to the switching element. It is characterized in that the magnet and the outer wall of the watertight container are provided with an eye ring to which a branch rope can be tied.

〔Example〕

Next, an example of this invention will be described.

FIG. 1 is a sectional view of an embodiment of this invention.

In the fishing bait detector 1 of this invention, a power source 3 and an ultrasonic transmitting circuit 4 are sealed in a cylindrical watertight container 2.
The vibrator 5 electrically connected to the mold material 5A
At the same time, a Hall element 6 is arranged and fixed on the inner wall of the watertight container 2, and a magnet 7 is removably attached to the outer wall of the watertight container 2 corresponding to the Hall element 6. Eye rings 8 and 9 are provided on the outer wall of the magnet 7 and the watertight container 2 to be engaged with each other and to which a branch rope 9 (FIG. 3) can be tied.

The attachment position of the eye ring 8 to the outer wall of the watertight container 2 is not particularly limited, but it is preferable to attach it to the top of the container, that is, the molding material 5A portion as shown in the figure.

This is because, as will be clear from the explanation of the action described below, after feeding, the container 2 stands upright in the water, making it easier for ultrasonic waves to be transmitted all around.

Further, in the above, it is convenient if the power source 3 is rechargeable, since it can be used repeatedly.
3A in the figure indicates a battery charging terminal provided on the outer wall of the watertight container 2 when charging is enabled.

In addition, in the above, the watertight container 2 of the magnet 7
For snap-like engagement, a cylindrical extension 2A is provided at one end of the watertight container 2, and a magnet 7 is inserted into the cylindrical extension 2A.
The holder 7 of this magnet 7
A pin 2B made of a weak material that can be cut by an external force above a certain level, that is, by the movement of the captured fish, is inserted into the pin A and the cylindrical extension 2A to fix the two.

In FIG. 1, 2E and 2E indicate watertight O-rings.

In the above embodiment, the case where the watertight container 2 is a vertically elongated cylindrical body is shown, but the present invention is not limited to this, and the watertight container 2 may be spherical as shown in FIG.

Note that the structure shown in Fig. 2 is exactly the same as Fig. 1 except that the container 2 is spherical, so the same reference numerals as shown in Fig. 1 are only used and detailed explanations are not given. Omitted.

[Effect]

Next, the operation of the embodiment of this invention will be explained.

As shown in FIG. 3, in the bait feeding detector 1 for fishing of this invention, a watertight container 2 and a magnet 7 are connected to a branch line 9 of a longline 10 in a series with sufficient slack in the branch line 9 between them. .

After casting the line, when the bait is fed, the magnet 7 separates from the watertight container 2 due to the impact of the hook, and the change in distance at the time of separation activates the Hall element 6, which becomes a signal and transmits the ultrasonic wave transmitting circuit 4. starts operating, and ultrasonic waves F are emitted from the vibrator 5 into the water.

At this time, if the container 2 is set in an upright position, the ultrasonic waves are emitted evenly over the entire circumference, which is convenient for reception.

This ultrasonic wave is then received by, for example, a fish detector (not shown).

In addition, the frequency of the ultrasonic waves is determined by each fishing bait detector 1.
If it is set differently for each case, it becomes possible to detect a branch rope that is hooked.

〔effect〕

As explained above, according to the fishing bait feeding detector 1 of this invention, the presence or absence of feeding is detected by ultrasonic waves, so detection is possible regardless of visibility, weather, etc., and fishing can be carried out effectively. I can do it.

In addition, the fishing bait feeding detector 1 of this invention has a simple structure and requires only a simple circuit, so it can be provided at a very low cost, and even if it is washed away due to breakage of the rope, there will be little economic loss. It has various practical effects such as

[Brief explanation of drawings]

FIG. 1 is a sectional view of an embodiment of this invention, FIG. 2 is a sectional view of another embodiment, and FIGS. 3 and 4 are explanatory views of the operation of the embodiment.

Claims (1)

[Claims for Utility Model Registration] (1) A power source and an ultrasonic transmitting circuit are sealed in a watertight container, and a vibrator operated by the ultrasonic transmitting circuit is fixed to the outer surface of the watertight container via a molding material. A magnetically sensitive switching element for activating the ultrasonic transmitting circuit is arranged and fixed on an inner wall of the watertight container, and an outer wall of the watertight container corresponding to the switching element has a magnetically sensitive switching element fixed thereto.
A magnet is removably engaged in a snap-like manner, and the magnet and the outer wall of the watertight container include:
A bait feeding detector for fishing, characterized by being provided with an eye ring capable of tying a branch line. (2) The feeding detector for fishing according to claim 1, wherein the power source is a rechargeable battery. (3) The bait feeding detector for fishing according to claim 1 or 2, wherein the eye ring is provided at the tip of the vibrator mold material.