JPH0130066Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Field of invention) This invention relates to a fish ovary removal device.

(Background Art) FIG. 1 is a side view showing a proposed ovary removal device together with a conveying means, and FIG. 2 is a front view showing the ovary removal device. A fish body 3, such as a cod, from which the head has been removed, is conveyed by a conveyance belt 1 serving as a conveyance means, with its tail held between its tail and its abdomen directed in a conveyance direction A. The posture of the fish body 3 at this point is inverted in this example, but it may also be horizontal. A pressing plate 6 is provided below the conveyor belt 1 and is pulled by a spring 7 toward the abdomen of the fish. Note that reference numeral 2 is a guide for preventing the fish body 3 from escaping upward, and is not necessarily necessary.

As the fish body 3 is transported, the abdomen of the fish body 3 is sequentially pressed by the press plate 6 from the tail to the body. As a result, the ovary 4 is pushed out from the abdominal cavity of the fish body 3.

However, when an actual test was conducted using a device having the above-mentioned configuration, it was found that the ovary could not be removed smoothly. That is, since the pelvic fin 5 of the fish 3 and the abdomen at its base are hard, the tip of the pressing plate 6 gets caught on the pelvic fin 5, causing slippage between the conveyor belt 1 and the tail of the fish 3, causing the fish 3 to may become stuck in that position and the ovary 4 may not be removed smoothly.
If the clamping pressure of the conveyor belt 1 is increased in an attempt to prevent this slippage, or if a protruding pin is provided on the conveyor belt 1 to pierce the tail of the fish 3, the tail of the fish 3 will be torn off, and the ovary 4 will be moved smoothly. It becomes impossible to take it out.

In addition, the pelvic fin 5 may be bent by the tip of the pressing plate 6, but if this happens, a space will be created between the bent pelvic fin 5 and the abdomen, and the pressing force of the pressing plate 6 will no longer work effectively. , the ovary 4 cannot be removed smoothly. In this case, the pressure plate 6
If the pressure is increased, the ovaries will be damaged.

The problem with the device having the configuration shown in FIGS. 1 and 2 is that it presses against the abdomen from above the pelvic fins. Japanese Patent Publication No. 59-26257 discloses an extrusion spatula for pressing the abdomen, but it has exactly the same problem as the pressing plate 6 described above. In addition, the pressing plate 6
The same thing can be done even if you change it to a push rod.

(Purpose of the invention) The object of this invention is to provide an ovary removal device that can smoothly remove fish ovaries without damaging them.

(Structure of the invention) The present invention is a device for removing ovaries from a fish whose head has been removed and whose tail is being held and transported in the transport direction by a transport means, the transport means being The abdomen of the fish is transported as the downstream side in the transportation direction, and a pressing body is transported that is elastically biased toward the abdomen of the fish and presses the abdomen on both sides of the fish from closer to the tail than the ovary, avoiding the pelvic fins of the fish. This is a fish ovary extracting device characterized in that it is provided near a means.

(Description of Embodiments) FIG. 3 is a side view showing an ovary removal device together with a conveyance means according to an embodiment of the invention, and FIG. 4 is a front view showing the ovary removal device. The posture of the fish body 3 is in an inverted state as described above. Hereinafter, differences from the conventional ovary retrieval device described above will be mainly explained. In this embodiment, a pressing plate 8 is used which is pulled toward the abdomen of the fish 3 by a spring 7 and has a notch 9 through which the pelvic fin 5 of the fish 3 can pass. Corners 16, 17 of this cut 9
By doing so, the abdomens 18 and 19 on both left and right sides of the fish body 3 are pressed while avoiding the abdominal fins 5 of the fish body 3. As a result, unlike conventional devices, only the ovary can be effectively pressed without pressing the pelvic fin 5 or the abdomen at its base, which has been a problem due to its hardness.
FIG. 5 shows the fish body 3 after the ovary has been pushed out, and it can be seen that the abdominal cavity has been pressed very effectively.

According to this embodiment, unlike the device having the configuration shown in FIGS. 1 and 2, the tip of the pressing plate can be caught on the pelvic fin, or the pelvic fin can be bent by the tip of the pressing plate. Problems such as ovaries can be solved all at once, and the ovaries can be removed smoothly without damaging them. Also, the fish body 3 is cut by the notch 9.
Since the ovary is held so that it does not escape from side to side, the ovary can be removed even more smoothly. In particular, if the notch 9 is made into a deep V-shape, the ridgeline of the notch 9 will allow the fish body 3 to
Because the abdomen of the patient is held more tightly, removal of the ovary becomes smoother.

Note that the shape of the cut 9 described above is not limited to the V-shape as shown in the figure, but may be a U-shape, a rectangle, or the like.

In this invention, instead of the above-mentioned pressing plate 8, it is possible to widely use a pressing body which is elastically biased toward the abdomen of the fish and presses the abdomen on both left and right sides of the fish while avoiding the abdominal fins of the fish. FIG. 6 shows the pressing body placed on two pressing plates 10 and 11 with a little space between them.
Fig. 7 shows an example in which the pressing body is arranged in a concave portion
Fig. 8 shows an example in which the pressing body is composed of two balls 14, 15 spaced a little apart from each other.
Here is an example configured with:

Incidentally, the posture of the pressing plate 8 may be in the horizontal direction as shown in FIG. In this case, the pressing plate 8 is pulled laterally toward the abdomen of the fish body 3 by the spring 7. The same applies to the other pressing bodies mentioned above.

The operation of the embodiment shown in FIG. 9 will be explained. FIG. 10 is a simplified sectional view seen from the left side of FIG. As shown in FIG. 10 1, the fish body 3 is moved, and by further moving the fish body 3, as shown in FIG. 10 2, the abdomen of the fish body 3 is pressed from the left and right at the cut 9 It turns out. Therefore, the ovary 4 is pushed out toward the head. As the fish body 3 is further transported, the ovary 4 is transferred to the fish body 3 as shown in FIG.
is discharged and taken out.

11-13 are simplified diagrams of still other embodiments of the present invention. Figure 11 1, 12
FIGS. 1 and 13 FIG. 1 is similar to the embodiment described in connection with FIG.
1, FIG. 12, FIG. 12, and FIG. 13 are simplified plan views thereof. Balls 14 and 15 are arm 2
0 and is biased by a spring 7. As the fish body 3 is transported, the first
As shown in Figure 1, the abdomen is pressed from the left and right by the balls 14 and 15, and then the fish body 3 is further conveyed to the 12th
As shown in the figure, the nest 4 is pushed out toward the head. When the fish body 3 is further transported, the ovary 4 is discharged from the fish body 3 and taken out, as shown in FIG. 13.

In each of the above-described embodiments, the conveyor belt 1 serving as the conveying means conveys the fish body 3 with its abdomen on the downstream side in the conveyance direction (that is, on the right side in FIGS. 1 and 9). The ovary 4 is pressed by a pressing plate 8 or the like from a position where the abdomen is closer to the tail than the ovary during transportation.

In addition, the function of the notch 9 of the press plate 8 will be described. Each cross section seen from the cutting plane line - - - in Fig. 14 is shown in Figs. 5 1 to 5 4, respectively. By forming the cut 9 in the pressing plate 8, it is ensured that the center of the fish body 3 is brought out, that is, the axis of the fish body 3 is aligned with the conveyance direction of the conveyor belt 1. The tail of the fish body 3 is flat as shown in Figure 15 1, and as it approaches the head it becomes thicker and flat as shown in Figure 15 2.
5 It has a slightly flattened shape as shown in FIG. 3, and near the head it has an almost elliptical shape as shown in FIG. 15 4. In the notch 9, the center of the fish body 3 comes out because the parts from the tail to the part near the head move in this order. In other words, the fins protrude more than the body,
This large fin can be inserted into the notch 9 first, and since the part from the tail part enters the notch 9 first, it is possible to reliably bring out the center of the body. Similarly, when using the pressing bodies 10, 11 and when using the rod 12, furthermore, when using the balls 14, 15,
Even when using a
Rather than pushing on the thick flesh, the idea is to push from the left and right sides of the ovary, which makes it easier to expel the ovary. The present invention achieves such excellent effects.

Finally, although the above explanation was given using the case where the fish body 3 is in an inverted state, the posture of the fish body 3 is not a problem in this invention, as long as the above-mentioned relationship between the fish body 3 and the pressing body is maintained. The posture of the fish body 3 may be sideways, inclined from sideways, or any other posture.

(Effect of the invention) According to this invention, the ovary can be removed smoothly without damaging it.

In particular, according to the present invention, the conveyance means conveys the fish body with the abdomen downstream in the conveyance direction, and the pressing body presses the left and right abdomens from closer to the tail than the ovaries, so the ovaries are completely damaged. Moreover, since this pressing body presses the abdomen on both the left and right sides as described above, the center of the fish body is not shifted, and therefore, only the ovary is smoothly moved without damaging not only the ovary but also the fish body. It can be discharged to

[Brief explanation of the drawing]

FIG. 1 is a side view of a proposed ovary removal device together with a conveying means, and FIG. 2 is a front view of the ovary removal device. FIG. 3 is a side view showing an ovary removal device according to an embodiment of the invention together with a conveying means, and FIG. 4 is a front view showing the ovary removal device. FIG. 5 is a sectional view showing the fish body after the ovary has been extruded. 6 to 8 are front views showing other embodiments of this invention. FIG. 9 is a side view showing the case where the pressing plate is in a horizontal orientation, FIG. 10 is a sectional view for explaining the operation of the embodiment shown in FIG. 9, and FIGS.
Figure 3 is a diagram showing still another embodiment of the present invention.
4 is a side view of the fish body 3, and FIG. 15 is a cross-sectional view taken from each section line in FIG. 14. 1...Transportation belt, 3...Fish body, 4...Ovary,
5... Pelvic fin, 7... Spring, 8... Pressing plate, 9...
...notch.

Claims (1)

[Scope of Claim for Utility Model Registration] A device for removing ovaries from a fish whose head has been removed and whose tail is being held and transported in the transport direction by a transport means, the transport means comprising: The abdomen of the fish is transported as the downstream side in the transportation direction, and a pressing body is transported that is elastically biased toward the abdomen of the fish and presses the abdomen on both sides of the fish from closer to the tail than the ovary, avoiding the pelvic fins of the fish. A fish ovary extraction device characterized by being provided near a means.