JPH088628Y2 - Ayu fishing tugboat - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a tugboat for ayu fishing. More specifically, for example, in the case of friend fishing, a decoy ayu or a freshly caught ayu fish is accommodated in a mountain stream. The present invention relates to an improvement of a tugboat for ayu fishing, which is used for keeping a swim and making the best use of it.

[Prior Art] Generally, this type of tugboat has a structure in which, in addition to the fish inlet, an inflow port and a drainage hole are provided, and the tugboat can be towed in a gentle stream of a mountain stream or in a place with a slightly fast stream. The attitude of the boat toward the water stream is stable, and when the tugboat is submerged in the water, an appropriate water stream is generated inside the tugboat so that the Ayu can be accommodated in a swimming state.

[Problems to be solved by the device] However, in a place where the water flow is fast or when a rapid flow occurs, the water hits the bottom surface of the tugboat at the bow side, so the attitude of the tugboat is that the bow rises upward. The situation is the same as if the runner boat were to run in the condition of a friend who raises the bow at the start. Therefore, under such a condition, the resistance of water becomes large, so that more force is required to hold the tugboat, which causes fatigue to the fisherman. In addition, the portion protruding from the surface of the water becomes larger than the portion submerged in the water, which reduces the amount of water in the tugboat, which causes a problem that the decoy ayu stored in the tugboat dies.

The present invention has been made in view of the above circumstances, and provides a tugboat for ayu fishing in which the attitude of the tugboat is always controlled to be in an appropriate state regardless of the speed of water flow, and fresh water can be supplied into the tugboat. The purpose is to do.

[Means for Solving the Problems] In order to achieve the above object, a tugboat for sweetfish fishing according to the present invention comprises a fish throwing port on the upper surface of a hollow tugboat main body,
On the premise of a tugboat for sweetfish fishing having an inflow port and a drainage port at the front and rear of the tugboat main body, respectively, a pair of guide ribs having a guide portion along the towing direction are projected on the towboat main body, A bow vertical displacement control member that engages with the guide portion and is movable in the towing direction is disposed between both guide ribs, and a water pressure detection plate is provided on the bow vertical control member. An elastic member is provided so as to constantly urge the control member forward.

In the present invention, the engagement between the guide portion provided on the guide rib and the bow vertical displacement control member (hereinafter referred to as "transam") is arbitrary as long as the transam can move in the towing direction. Of course, for example, even if one of the opposing portions of the guide portion and the transom is provided with a long hole along the towing direction, and the other is provided with a pin projecting slidably in the long hole. Alternatively, one of the opposing portions of the guide portion and the transom may be provided with a convex strip along the towing direction, and the other may be provided with a concave strip slidably fitted to the convex strip.

The transam is arranged so as to be movable in the towing direction of the tugboat, and if it controls the vertical displacement of the bow of the tugboat, its shape is a plane shape, a curved shape that descends downward,
Alternatively, it may be a combination of the flat shape and the curved shape.

Further, the water pressure detecting plate may be formed integrally with the transam if it is vertically installed at the front end of the transom and transmits the detected water pressure to the transam, or via a transmission mechanism such as a link. It may be linked to a transam.

In addition, the elastic means may be any as long as it urges an elastic force that constantly pushes the transam forward, and is arranged, for example, between the fixed side of the tugboat in front of the transam and the transam. It can be formed of a tension spring or a pressing spring that presses the transom from the rear side to the front side.

The dimensions of the water pressure detection plate and the transom and the strength of the elastic force of the elastic means are appropriately set according to the width, height and length of the tugboat.

[Action]

With the above configuration, when the water pressure of the water flow is detected by the water pressure detection plate and the water pressure detection plate is displaced against the elastic force of the elastic means, the transom follows the displacement of the water pressure detection plate. When the ship is displaced in the towing direction and the water pressure is small, the water pressure detection plate and the transom are located in front of the tugboat to maintain the attitude of the tugboat in a substantially horizontal state.
When the water pressure is high, the water pressure detection plate and the transom are located on the rear side of the tugboat and receive water pressure at the transam, pushing up the stern of the tugboat and pushing down the bow of the tugboat to lower the tugboat. Keep your posture almost horizontal.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

◎ First embodiment Fig. 1 is a side sectional view of the first embodiment of the tugboat of the present invention,
FIG. 2 is a perspective view of the main part, FIG. 3 is a side view of the main part, and FIG. 4 is a bottom view of the main part.

The tugboat of the present invention comprises a hollow tugboat main body 10 having a boat-shaped outer shell, and a fish inlet 12 provided on the upper surface of the tugboat main body.
An inlet 14 and a drainage port 16 are provided at the front and rear of the vessel 10, respectively, and a drainage hole 18 is provided on the side surface of the tugboat body 10. Further, a control unit 20 for controlling vertical displacement of the bow of the tugboat is provided on the rear side of the bottom surface of the tugboat main body 10.

 In addition, 11 is a float and 13 is a stabilizer.

As shown in FIG. 2 to FIG. 4, the control unit 20 is provided with a guide unit 22 (hereinafter referred to as a guide unit 22) that is formed in a long hole along the towing direction so as to project parallel to each other on the rear side of the bottom surface of the towing boat body 10. A pair of guide ribs 24, 24 each having a long hole), a member for vertically displacing a bow (hereinafter referred to as “transam”) 26 disposed between the guide ribs 24, 24 and movable in the towing direction, and a transom 26 The water pressure detection plate 28 is provided at the front end of the transom 26, and the elastic means 30 (hereinafter referred to as a tension spring) that constantly biases the transom 26 toward the front side.

In this case, the transom 26 is formed of a flat plate member having a width dimension slightly narrower than the distance between the guide ribs 24, 24, and the transom 26 is slidably fitted into the long holes 22 on both sides of the front end side of the transam. The plate-shaped protrusion 32 and the guide pin 34 to be inserted are provided so as to be appropriately spaced. In this case, the protrusion 32
The guide pin 34 may be connected to the plate-shaped projection only. Further, on the left and right sides of the front end face of the water pressure detection plate 28 vertically fixed to the front end portion of the transom 26, the ear tabs 36, 36 for spring connection are attached.
The other end of the tension spring 30, which is an elastic means whose one end is connected to the protruding ears 36, is connected to brackets 38, 38 which are provided on the bottom surface of the tugboat main body 10 so as to project. Therefore, the water pressure detection plate 28 and the transom 26 are always moved to the front side of the tugboat by the elastic force of the tension spring 30.

In the tugboat of this invention configured as described above,
When the water pressure A is small (at the time of clear flow), a large water pressure A is not applied to the water pressure detection plate 28, so that the water pressure detection plate 28 and the transom 26 are located in front of the tugboat due to the elastic force of the tension spring 30. Maintain the attitude of the tugboat in a substantially horizontal position. When the water pressure A is large (during a rapid flow), the water pressure detection plate 28
Since a large water pressure A is applied to, the water pressure detection plate 28 is displaced rearward against the elastic force of the tension spring 30, and the displacement is transmitted to the transom 26 to displace the transam 26 to the rear side of the tugboat. , At the time of a rapid flow, water hits the bottom of the tugboat's forehead and tries to raise the bow. The bow of the tugboat will be pushed down, and the attitude of the tugboat will be kept almost horizontal.

Although the transam 26 has a flat plate shape in the first embodiment described above, the transam 26 does not necessarily have to be a flat plate shape, and as shown by the alternate long and short dash line in FIG. You may form in a shape. Also,
In the above-described embodiment, the ear tabs protruding from the front end surface of the water pressure detection plate 28
The case where the elastic means is formed by the tension spring 30 connected to the bracket 38 protruding from the bottom surface of the tugboat main body 10 on the front side of the transom 26 and the transom 26 has been described. The tension spring does not have to be a tension spring. For example, as shown by a dashed line in FIG. 4, a bracket protruding from the end portion of the protruding ear 36 and the outer surface of the guide rib 24 on the front side of the elongated hole 22. The elastic means may be formed by connecting the tension spring 30 between the spring 38 and the spring 38, or by a pressing spring contracted between the guide pin 34 and the rear end of the elongated hole 22.

◎ Second embodiment Fig. 5 is a perspective view of the essential parts of a second embodiment of the present invention.
FIG. 6 is a side view of the essential parts of the second embodiment, and FIG. 7 is a bottom view of the essential parts of the second embodiment.

The second embodiment of the present invention is a case in which the transom is positively inclined at the time of rearward movement of a member for vertical displacement of the bow (hereinafter referred to as "transam"). That is, a curved guide portion 23 that descends in a curved shape toward the rear side of the tugboat is formed in the long hole 22 provided in the guide rib 24, and the guide pin 34 slidably fitted in the long hole 22 is provided. While protruding the arm 40 at the front end of the Transam 26,
Hold the front end of the arm 40 with the hinge pin 42
This is a case in which the transom 26 is formed so as to be vertically swingable by being pivotally attached to a forked hinge 44 protruding rearward from the rear surface. By forming in this way, the water pressure detection plate 28
When the hydraulic pressure A is displaced rearward, the transom 26 is positively displaced downward while retreating, so that the bow of the tugboat can be pushed further downward.

Since the other parts of the second embodiment are the same as those of the first embodiment, the same parts are designated by the same reference numerals and the description thereof will be omitted.

Third Embodiment FIG. 8 is a side view of the essential parts of a third embodiment of the present invention, and FIGS. 9 and 10 are a bottom view and a rear view of FIG. 8, respectively.

The third embodiment of the present invention is a case in which the displacement of the water pressure detection plate is transmitted to the transom via a link mechanism and the inclination angle is positively provided when the transam is retracted.

In the third embodiment, a rotary shaft 48 is rotatably installed on bearing brackets 46 hanging on both sides of the bottom surface of the tugboat main body 10, and a water pressure detection plate 28 is attached to the rotary shaft 48. , Both ends of the coil spring 50 wound around the rotary shaft 48 are locked to the tugboat main body 10 and the water pressure detection plate 28, respectively, and the water pressure detection plate 28 is always in contact with the stopper piece 52 to maintain the vertical state. There is. Further, the elongated hole 22 provided in the guide rib 24 forms a curved guide portion 23 that descends in a curved shape toward the rear side of the tugboat, as in the second embodiment.
The transam 26 and the water pressure detection plate 28 are connected by a guide pin 34 on the front side of the transom 26 having guide pins 34 and 35 slidably inserted therein and a link 54 whose both ends are pivotally attached to a rotary shaft 48. I am allowed. Therefore, when the water pressure detection plate 28 is displaced by water pressure, the transom is transferred via the link 54.
As 26 moves rearward, it is displaced downward and receives water pressure, so that the vertical displacement of the tugboat can be controlled by pushing down the bow as described above.

Since the other parts of the third embodiment are the same as those of the first embodiment, the same parts are designated by the same reference numerals and the description thereof will be omitted.

[Effects of the Invention] As described above, the ayu-fishing tugboat of the present invention is configured as described above, and thus the following effects can be obtained.

Depending on the strength of the water flow, the bow vertical displacement member can move in the towing direction against the elastic force of the elastic means to control the vertical displacement of the bow, so that the tugboat is always in a horizontal state regardless of the water flow. Since it can be maintained at a low level, it does not give fatigue to the angler, and the stable supply of water to the tugboat prevents the death of the decoy ayu.

[Brief description of drawings]

FIG. 1 is a side sectional view of a first embodiment of a tugboat of the present invention, FIG. 2 is a perspective view of an essential part of the first embodiment, FIG. 3 is a side view of an essential part of the first embodiment, and FIG. Is a bottom view of the essential parts of the first embodiment, FIG. 5 is a perspective view of the essential parts of the second embodiment of the present invention, FIG. 6 is a side view of the essential parts of the second embodiment, and FIG. 7 is the second embodiment. Bottom view of the main part of
FIG. 8 is a side view of essential parts of a third embodiment of the present invention, and FIGS. 9 and 10 are a bottom view and a rear view of FIG. 8, respectively. 10 …… Tugboat main body, 20 …… Control part, 22 …… Guide part (long hole), 24 …… Guide rib, 26 …… Transam (member for vertical displacement control of the bow), 28 …… Water pressure detection plate, 30… ... tension spring (elastic member), 48 ... rotary shaft, 50 ... coil spring (elastic member), 54 ... link.

Claims (1)

[Scope of utility model registration request] 1. A tugboat for ayu fishing, wherein a hollow tugboat main body is provided with a fish inlet on an upper surface thereof, and a front and rear part of the tugboat main body is provided with an inlet and a drainage port, respectively. A pair of guide ribs having a guide portion extending along the towing direction are provided on the main body, and a bow vertical displacement control member that engages with the guide portion and is movable in the towing direction is disposed between the guide ribs. A water pressure detecting plate is provided on the bow vertical displacement control member, and the water pressure detecting plate is provided with an elastic member for constantly urging the bow vertical displacement control member forward. Towing boat.