JPS61184195A - Fish hold with guide plate - Google Patents

Abstract

PURPOSE:To improve the efficiency of taking fish out of a hatch opening by providing a trapezoidal guide plate on the side wall of a fish hold with its end made free for connection to the hatch opening and shifting fish from the fish hold along the slope of the guide plate. CONSTITUTION:The lower sides of trapezoidal guide plates 5a-5d are fitted to the side wall 4 of a fish hold 1 and their upper sides are free to be connected to a hatch opening 6 with a metal piece 7. By this construction, cooled fish in the fish hole moves upward in a direction a by its own buyancy and upon contact with the lower surface of the guide plate 5, further moves upward along the slope of the said guide plate 5 until it reaches the hatch opening 6, thereby simplifying work for taking out fish. The guide plate 5 when not in use is oscillated downward to make the best use of the fish hold 1.

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 fish is liquid-cooled by filling it with a refrigerant liquid such as.

(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 installed on the sides, ceiling, and floor of the hold to air-cool the fish put into it. It is also possible to liquid-cool the fish by filling it with a refrigerant liquid such as brine or calcium chloride liquid. 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. Although it is simple,
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 were pressed against the ceiling of the fish hold by buoyancy and did not float up through the hatch opening, so it took a considerable amount of effort to remove them.

(Means for Solving the Problems) The present invention solves the above-mentioned problems of the conventional fish hold, and improves the efficiency of taking out the fish by providing a guide plate inside the fish boat and guiding the fish towards the hatch opening. In particular, the guide plate is made removable so that it does not reduce the fish storage capacity of the fish boat.

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

Reference numeral 1 in the figure is a fish boat. This fishing boat itself is no different from ordinary boats of this kind.

That is, a hatch 3 is formed in the center of the ceiling 2,
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 boat 1 constructed in this way. When the fish boat 1 is filled with a refrigerant liquid and the fish are liquid-cooled, or more specifically, when the liquid-cooled fish are taken out of the fish boat 1, the guide plate 5 prevents the fish from rising inside the fish boat 1 due to buoyancy. It is a type of removable hood that guides the fish to the hatch opening 6, and when not in use, it is placed close to the side wall of the fish boat 1 so that it does not interfere with the use of the fish boat 1 as a normal fish boat. In addition, when in use, it forms a so-called truncated pyramid shape to guide fish to the hatch opening 6 as described above.

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

There are no particular limitations on the shape or material of this item.
In short, it is sufficient as long as it has the function of guiding fish trying to surface inside the hold to the hatch opening 6. Therefore, it is important that the guide plate 5 has at least a truncated pyramid shape on its lower surface when in use, and that the 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, a part of the corner 10 of the fish boat 1 is partitioned off by the guide plate 5, and the accommodation capacity of the fish boat 1 is reduced accordingly.From this point of view, it is desirable to place the pivot point as high as possible. It is.

To attach the guide plate 5 to the sides M and 4 of the fish boat,
When the fish boat 1 is not used as a liquid cooler but as an air cooler, it is pressed against the side wall 4 so that fish can be stored up to a part of the corner. This is to make full use of the storage capacity. 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.

FIG. 1 shows a system in which this is made to hang down. In this case, a locking hook 7 is attached near the hatch opening 6 of the fishing boat 1, and an engaging member that engages with this is also attached to the tip of the guide plate 5, so that both the hooks are connected when in use. By engaging the guide plate 5, the guide plate 5 is held in a predetermined position. In order to move the guide plate 5 up and down, attach a rope or chain to the tip of the guide plate 5 in advance, extend it to the outside of the hatch 3, and use this rope to raise and lower the guide plate 5. is appropriate. 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. Because it goes up and down,
This makes handling the guide plate 5 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 fishing boat l, 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 follows 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 the operating state, the fish in the fish boat 1 rises due to buoyancy, for example, as indicated by a, and eventually comes into contact with the lower surface of the guide plate 5, and from then on... It rises along the slope of the guiding plate 5, reaches the hatch opening 6, and is taken out from there.

In this case, in order to reliably guide the fish to the hatch opening 6, it is desirable to form the upper end opening 11 formed by the guiding plates 5a to 5d slightly smaller than the hatch opening 6 (the second Furthermore, it is desirable to bend the upper end of the guide plate 5 upward to form a raised portion 12 at the upper end opening (see FIG. 1).

Furthermore, when not in use, the interior volume of the fish boat 1 becomes almost the same as if it were not in use, so fish can be stored without any problems as a normal fish boat. If the guide plate is pushed out when not in use, if the upper side of one of the guide plates 5b, 5d is made sufficiently long as shown in Fig. The guide plates 5b and 5d, which are formed long, are first set in the operating position, and then the guide plates 5a and 5c, which have shorter upper sides, are set.

At that time, some fish from the corners of the fish boat 1 are pushed out to the center and guided to the hatch opening 6, so by keeping the guide plate 5 in a spread state in advance, the fish boat 1 can be cooled by liquid cooling. In this case, it is possible to achieve the same storage capacity as in the case of air cooling.

(Effects of the Invention) As described in detail above, the present invention is a liquid-cooled fish boat that utilizes the point at which fish float to the surface and is provided with a guide plate that guides the fish to the hatch opening 6. Retrieving fish became extremely efficient, further increasing the versatility of fish boats. In particular, the guide plate is pivoted to the side wall of the fish boat and is kept close to the side wall when not in use, so the fish boat can be used as a normal air-cooled fish boat without any problems. This improves the usefulness of the guide plate.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention, and FIG. 2 is a longitudinal sectional view showing another embodiment of the same. Figure 3 is a frog track diagram schematically showing how the guide plate is used;
The figure is the same as above. 1; Fish hold 2: Ceiling 3; Hatch 4; Side wall 5; Guide plate 6; Hatch opening; Locking hook 8; Guide rail 9; Foot 10; Part of corner 11; Opening 12; Standing up Figure 2

Claims (1)

[Claims] Guide plates are pivotally attached to the side walls of the fish hold, and each guide plate is approximately trapezoidal in shape, the width of which is approximately equal to the distance from the pivot point to the hatch opening in the fish hold, and The length of the opposing pair is approximately equal to the width of the hatch opening,
A fish hold equipped with guide plates, characterized in that the other pair of guide plates are formed to be equal to or longer than the guide plates.