JPH0351631B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a guide plate for guiding fish to a hatch opening when taking fish out of a fish hold, and particularly relates to a guide plate for guiding fish to a hatch opening when taking out fish from a fish hold. It is characterized by being used when the fish is liquid-cooled by filling it with a refrigerant liquid.

(Prior art) On fishing boats, fish caught at sea are stored in fish holds. A fish hold is a type of cooling device, and cooling pipes are attached to the sides, ceiling, and floor of the hold, and the fish put into these pipes are air-cooled.
In addition, the fish hold is also filled with a refrigerant liquid such as brine liquid or calcium chloride liquid to liquid-cool the fish. By the way, the specific gravity of fish is lower than that of the refrigerant liquid, so if the refrigerant liquid is filled to the height of the hatch opening of the fish hold, the fish will rise to the surface of the liquid, so in that respect it is relatively easy to take it out. However, on the other hand, the hatch is small in the center of the ceiling of the fish hold in order to suppress the decline in the cooling effect of the fish hold and to prevent the refrigerant from overflowing due to rolling or pitching of the hull. Many of the fish in the fish hold are pressed against the ceiling of the fish hold due to buoyancy.
Since it did not float out of the hatch opening, it took considerable effort to remove it.

(Means for Solving the Problems) The present invention solves the above-mentioned problems of the conventional fish hold, and improves the efficiency of the fish takeout work by providing a guide plate in the fish hold to guide the fish toward the hatch opening. In particular, the guide plate is rotatable so as not to reduce the fish holding capacity of the fish hold.

Hereinafter, the present invention will be specifically explained based on illustrated embodiments.

Reference numeral 1 in the figure is a fish hold. This fish hold itself is no different from a normal one of this kind. That is, a hatch 3 is formed in the center of the ceiling 2, and
Although not shown, cooling pipes are attached to the inner surfaces of the ceiling 2, side walls 4, and bottom, and a mechanism for supplying and discharging a refrigerant liquid such as brine liquid or calcium chloride liquid is also attached.

Guide plates 5 are attached to each side wall 4 of the fish hold 1 constructed in this way. When the fish hold 1 is filled with a refrigerant and the fish are liquid-cooled, more specifically, when the liquid-cooled fish are taken out of the fish hold 1, the guide plate 5 tends to rise due to buoyancy within the fish hold 1. Hatch the fish you want 6
It is a type of removable hood that can be placed close to the side wall of fish hold 1 when not in use, so as not to interfere with the use of fish hold 1 as a normal fish hold. At the same time, when in use, it takes on the shape of a so-called truncated pyramid to guide fish to the hatch opening 6 as described above.

Therefore, the guide plates 5a to 5d are each formed separately and pivotally attached to each side wall 4 of the fish hold 1.

That is, one end of each guide plate is pivotally attached to the side wall of the fish hold, and the other end of each guide plate is attached in an inclined state toward the hatch opening. The length from the upper side to the lower side of each guide plate is approximately equal to the length from the pivot point to the hatch opening in the fish hold. There are no particular limitations on the material of this material. The point is to catch fish that are trying to surface inside the hold.
It is sufficient if it has the function of inducing. Therefore, it is important that the guide plate 5 has at least a truncated pyramid shape on its inner surface when in use, and that its lower surface has a structure on which fish can easily slide. Also, regarding the inclination angle of the guide plate 5 in this case, if the pivot point of the guide plate 5 is set at a lower position and the inclination angle (θ) becomes larger, it will become easier for the fish to slide. Then, the corner part 10 of the fish hold 1 is partitioned by the guide plate 5,
Since the storage capacity of the fish hold 1 is reduced accordingly, from this point of view, it is desirable to locate the pivot point as high as possible. The guide plate 5 is pivotally attached to the side wall 4 of the fish hold when the fish hold 1 is not used as a liquid refrigerator but as an air cooler.
This is pressed against the side wall 4 so that fish can be accommodated up to the corner 10,
This is to make full use of the storage capacity of fish hold 1. There are two methods for attaching the guide plate 5 to the side wall 4: one method allows it to hang down when not in use, and the other method allows it to be pushed out toward the side wall 4. 1st
The figure shows a method in which this is made to hang down. In this case, a locking hook 7 is attached near the hatch opening 6 of the fish hold 1, while a guide plate 5
An engaging member is also attached to the leading end of the guide plate 5, and by engaging the two members during use, the guiding plate 5 is held in a predetermined position. In addition, in order to move the guide plate 5 up and down, the guide plate 5
It is appropriate to attach a rope or chain to the tip of the hatch 3 in advance, extend this to the outside of the hatch 3, and use this rope to raise and lower the guide plate 5. However, if the guide plate 5 is made of a material with a specific gravity smaller than that of the refrigerant liquid, or if a float is attached to it so that the tip part floats, the guide plate will automatically move when the refrigerant liquid is put in and taken out. Since the guide plate 5 can be raised and lowered in a consistent manner, handling of the guide plate 5 becomes even easier. FIG. 2 shows a method for pushing the guide plate 5 outward. In this case, the guide plate 5 is formed to be bendable.

A guide rail 8 is attached to the fish hold 1, and a hook 9 that engages with this rail is attached to the tip of the guide plate 5, so that the tip of the guide plate 5 runs along the guide rail 8. Let them advance and retreat.

By the way, as already mentioned, the guide plate 5 is shaped like a truncated pyramid when in use, and its upper end is shaped to correspond to the hatch opening 6 of the hatch 3. It is sufficient that the shape is like that, and the outer shape does not necessarily have to be like that. For example, as shown in FIG. 4, it is sufficient to form the upper sides of a pair of opposing guide plates 5a and 5c to a length corresponding to the hatch opening 6, and to form the other pair longer than that. be.

(Function) Next, the function of the guide plate 5 will be explained.
In use, the fish in the fish hold 1 rise due to buoyancy, for example as shown in a, and eventually come into contact with the lower surface of the guide plate 5, after which they rise along the slope of the guide plate 5 and hatch. It reaches port 6 and is taken out from here. In this case, in order to reliably guide the fish to the hatch opening 6, it is necessary to
It is desirable to form the upper end opening 11 formed by a to 5d slightly smaller than the hatch opening 6 (see Fig. 2). It is desirable to form a rising edge 12 (see FIG. 1).

Furthermore, when not in use, the interior volume of the fish hold 1 becomes almost the same as if it were not in use, so fish can be stored in a normal fish hold without any problems. In addition, in the case of a type in which the guide plate is pushed out when not in use, if the upper side of one of the guide plates 5b, 5d is formed sufficiently long as shown in Fig. 4,
Guidance plate 5 with a long upper side in a liquid-cooled fish hold
If the guide plates b and 5d are first set in the operating state, then the guide plates 5a and 5c, which have the shorter upper sides, are set.
At that time, the fish in the corners of the fish hold 1 are pushed out to the center and guided to the hatch opening 6, so the guide plate 5
By keeping the fish tank expanded in advance, the fish tank 1 can exhibit the same storage capacity even when it is liquid-cooled as when it is air-cooled.

(Effects of the Invention) As detailed above, the present invention utilizes the point at which fish float to the surface in a liquid-cooled fish hold.
This system was equipped with a guide plate to guide the fish, and this made it possible to take out the fish extremely efficiently, further increasing the utility of the fish hold.
In particular, the guide plate is pivoted to the side wall of the fish hold and is kept close to the side wall when not in use, so the fish hold can be used as a normal air-cooled fish hold without any problems. This has improved the usefulness of the guide plate.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention, FIG. 2 is a longitudinal sectional view showing another embodiment of the same, and FIG. 3 is a frog's eye view schematically showing how the guide plate is used. Fourth
The figure is a bird's-eye view of the same. 1; fish hold, 2; ceiling, 3; hatch, 4; side wall,
5; Guide plate, 6; Hatch opening, 7; Locking hook, 8; Guide rail, 9; Hook, 10; Corner part, 1
1; opening, 12; rising.

Claims (1)

[Scope of Claims] 1. Surrounded by a plurality of side walls, hatch openings are opened at the tops of these side walls, and one end of each guide plate is pivotally attached to each side wall so as to be freely rotatable. In a fish hold, each guide plate has a substantially trapezoidal shape, and the length from the upper side to the lower side corresponds to the pivot point on the side wall of the fish hold. The length is approximately equal to the length from the landing point to the hatch opening, and the length of the upper side of the opposing pair of guiding plates is approximately equal to the width of the hatch opening, and the length of the upper side of the other pair of guiding plates is approximately equal to the width of the hatch opening. A fish hold equipped with a guide board characterized by the above characteristics, which is formed to be equal to or longer than the width of the mouth.