JPH04179420A - Method and apparatus for keeping live fish at rest - Google Patents

Abstract

PURPOSE:To keep a live fish at rest in a straight elongated state effective in distributing the live fish and enable treatment such as measurement, grading and processing of the live fish by placing the live fish in a U-shaped groove, bringing the body side into contact with sidewalls and erecting the fish body. CONSTITUTION:A live fish 2 is placed in a U-shaped groove 1 and the body sides are brought into contact with sidewalls to erect the fish body. Thereby, the aforementioned live fish 2 is erected and kept at rest. Furthermore, an apparatus equipped with the U-shaped groove 1 formed so as to contain the above-mentioned live fish 2 and erect the fish body by contact of the body sides thereof with the sidewalls and introduction members 5 for introducing the live fish 2 into the aforementioned U-shaped groove 1 is preferably used.

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Industrial Field of Application) The present invention provides a method and apparatus for keeping live fish still for use in the fisheries industry, and more specifically, a method and apparatus for keeping live fish stationary by placing them in a U-shaped groove and making them stand straight. The present invention relates to a method and apparatus that enable measuring, sorting, processing, and other mechanical processing of live fish while keeping it stationary.

(Prior art) Nowadays, the trade of live fish is increasing due to the trend towards gourmet food, and there is a need for counting, weighing, and weighing of live fish, sorting based on these results, and activities to suppress the deterioration of meat quality during the distribution process. However, since it is impossible to perform the above-mentioned process mechanically, as live fish violently thrash and do not stand still when taken out of the water, the industry has developed methods for artificially keeping live fish still. Development was strongly requested.

(Problems to be Solved by the Invention) The present invention has been made to meet this need, and is intended to enable fish to swim by basically bending the rear half of their bodies to the left and right and pushing water diagonally backward. Based on the idea that if we restrained the rear half of the body from bending to the left and right, we could suppress the violent behavior, so we put live fish taken out of the water into the U-shaped groove, and placed one side of the fish in the U-shaped groove. When the fish body was placed in contact with the side wall and placed with its belly up or back up, it was confirmed that the live fish would be in a static state with its body stretched straight and not making any movements, leading to the completion of the present invention. By making it possible to artificially keep live fish still, which was previously impossible, this invention mechanizes the measurement, sorting, processing, and other processing of live fish, thereby promoting the further spread and development of live fish trading. The purpose is to contribute to reducing product costs.

(Means for solving problems) Means of the present invention for achieving the above-mentioned objects are as follows.

(1) A method for keeping a live fish stationary, which is characterized by placing the live fish in a U-shaped groove and making the fish stand upright with its body side in contact with a side wall.

(2) It is characterized by being equipped with a U-shaped groove formed to contain a live fish and make the fish stand up by abutting the body side with the side wall, and an introduction member for introducing the live fish into this U-shaped groove. A device that holds live fish still.

It is in.

The U-shaped groove used in the above-mentioned method and device is used to store a live fish in the U-shaped groove, and to stand the fish body with its belly up or its back up by contacting its body side with the side wall of the U-shaped groove. Since it is intended to be held in a stable condition, it should be made of material that has the necessary strength and does not pose any hygienic problems, and should be longer than the maximum length of the live fish being handled.
If the depth is 2/3 or more of the maximum front body height, the width is slightly wider than the largest fish body, and the width is about 3C% wider than the smallest fish body, it will be possible to control the size of the treated fish. Because of this difference, even if the angle at which the fish body stands in the U-shaped groove changes from straight to diagonal, the condition that the body side can be supported from the side is satisfied, so one live fish in the U-shaped groove can be stretched straight. This U-shaped groove can be installed horizontally, but in this case, an external force is required to feed out the stationary live fish, so the U-shaped groove should be placed in the direction that feeds out the live fish. If placed on an incline, it is convenient because the live fish can be sent out by the action of the slope.In addition, this type of U-shaped groove is shaped like a long flap to keep the live fish stationary while flowing. If the live fish are sent out from the U-shaped groove, there is no need for a member to stop the live fish, but if it is necessary to synchronize the sending out of the live fish with equipment that performs measurement, sorting, processing, or other processing, use the live fish discharge side of the U-shaped groove. A movable stop member is provided at the holder, and this member is operated to close when accepting live fish and to open after coming to rest.

This U-shaped groove is used to cut the medulla oblongata of a stationary live fish to make it brain-dead. There is a risk that the relative position will change and the blade will come out of the medulla oblongata.
By tilting the U-shaped groove slightly with respect to the vertical line and making the direction in which the live fish is tilted constant by this tilt, it is better to reduce changes in the relative position of the blade and the medulla oblongata, thereby ensuring that the medulla oblongata is cut reliably. .

The above-mentioned member for introducing live fish into the U-shaped groove is used to quickly and reliably feed live fish that move wildly into the U-shaped groove whose width is limited, so when introducing live fish from above, .

The U-shaped groove is symmetrically inclined from left and right to the U-shaped groove so that live fish can be introduced from either the left or right side. Either tilt it toward the U-shaped groove and stand it upright on the other side to stop live fish that have reached the U-shaped groove and let them quickly enter the U-shaped groove.
This introduction member is designed to have an appropriate restraint angle, and is either formed integrally with the above-mentioned U-shaped groove, or formed separately and connected by a connecting member.

(Function) In the method and apparatus of the present invention described above, when a live fish is taken out of the water and guided by the introduction member into the U-shaped groove as shown in FIG. Because it comes into contact with the side wall of the U-shaped groove, it stands straight or diagonally in the U-shaped groove with its belly up or its back up, and is in a stationary state with its body stretched straight and motionless.

Therefore, if devices for counting, weighing, weighing, etc. are placed at the end of this U-shaped groove for stationary use as shown in Figures 4 to 6, live fish kept stationary can be supplied to these devices and mechanically It is possible to perform processes such as counting, weighing, weighing, etc., and if a sorting device is combined with the weighing and weighing device as shown in Figs. 5 and 6, it is possible to Therefore, the operation of sorting live fish into several types can also be performed mechanically.

In addition, if a live-closing device equipped with a means for grasping live fish and a blade for cutting the medulla oblongata is placed at the end of the U-shaped groove for stationary use, as shown in FIGS. 9 and 1O, the U-shaped groove can be By holding a stationary live fish in a gripping means and cutting its medulla oblongata with a knife, separating the brain, respiratory and psychotropic centers, and stopping breathing and blood circulation, only the cellular life phenomena can be maintained. It is capable of mechanically activating meat to prevent deterioration in meat quality during the distribution process.

(Example) Examples of the method and apparatus for keeping live fish still according to the present invention will be described below based on the drawings.

In Figures 1 to 3 of the drawings, l is a U-shaped groove for restraining the live fish 2, which is longer than the body length of the largest live fish 2 to be processed by the stainless steel and has the maximum depth. The width is about the same as the body height of a fish, and the width is slightly wider than the largest body of the largest live fish 2, and about 620cm wider than the largest body of the smallest live fish 2, and this U-shaped groove is In order to easily discharge the stationary live fish 2 inside, it is inclined at about 20 degrees in the discharge direction, and on the discharge side of this U-shaped groove 1,
A stopper member 4 is provided which is closed by an operating means 3 until the live fish 2 comes to rest, and is opened after the fish comes to rest, and this U-shaped groove 1 is cut by cutting the medulla oblongata with a knife, so that breathing and relaxation are stopped. When carrying out an activation treatment that aims to preserve meat quality for a long period of time by sustaining cell life phenomena, the above-mentioned U-shaped groove 1 is used.
is slightly inclined with respect to the vertical line as shown by the chain line in Fig. 2, and this inclination allows the live fish 2 placed inside to be inclined in a certain direction, thereby minimizing misalignment of the medulla oblongata with respect to the cutter. .

Reference numeral 5 denotes an introduction member for introducing the live fish 2 into the U-shaped groove l provided in the front, and a member having a cross section formed in the shape of an inverted V is connected to the upper side of the U-shaped groove l, into which the live fish 2 is introduced. When the live fish 2 is introduced manually, by a conveyor, a chute, etc., the live fish 2 is guided to be smoothly and quickly settled into the U-shaped groove 1.

In Fig. 4, a is a counting device disposed at the end of the stationary U-shaped groove 1, and the live fish 2 stopped in the counting U-shaped groove 6 connected to the U-shaped groove 1 placed in the front. A detector 7 is attached, and each time the detector 7 detects a live fish 2 moving in the U-shaped groove 5, the counter 8 performs a counting operation, displays the counted value on the display section 9, and also displays the counted value on the recording section. It is configured to record in IO.

In FIG. 5, b is a weighing device disposed at the end of a stationary U-shaped groove 1, and a weighing U-shaped groove +1 for receiving live fish from the U-shaped groove 1 disposed in front is connected to a scale stand 13 using a load cell 12. When a stationary live fish 2 is fed into the U-shaped groove 11, the measuring device 14 is activated based on the distortion of the load cell 12.
The device is configured to measure the weight of the live fish 2, display the measured value on the display section 15, and record it on the recording section 16, and furthermore, this device can measure the weight of the live fish 2, for example, 0.1 kg. An operation member 21 that discriminates units and switches and connects the switching chute 17 to a plurality of sorting sections 18, 19, 20 based on the discrimination value.
If a controller (not shown) is provided, it is possible to perform a sorting process for sorting live fish 2 into a plurality of types by weight at the same time.

Furthermore, in the same figure, 22 is a live fish stopping member provided in the U-shaped groove 11, which is closed by the operating means 23 to stop receiving the live fish 2 during weighing, and is opened when the weighing is finished to send out the live fish 2. .

In Fig. 6, C is a measuring device disposed at the end of the U-shaped groove l for stationary use, and the U-shaped groove 24 for measuring is connected to the U-shaped groove l mentioned above.
Place the emitter 25 and receiver 26 above and below or on both sides of the U.
The floodlight 2 is passed through the floodlight window (not shown in the drawing) provided in the groove 24.
When the live fish 2 moving in the U-shaped groove 24 intercepts the light, the measuring device 27 measures the body length of the live fish 2 based on the light blocking distance, and displays the measured value on the display. 28 and recorded in the J8 recorder 29. Furthermore, this device C discriminates the measured value in units of, for example, 2 cm, and based on this discrimination value, the switching shoe number is assigned to a plurality of sorting tables. 31, 32, and 33, the sorting process for sorting the live fish 2 into a plurality of types according to body length can be performed simultaneously.

Incidentally, the light projector 25 and the light receiver 26 of the above-mentioned measuring device C are as follows.
If placed perpendicular to the fish body 2 on both sides as shown in Figure 7, the body height of the live fish can be measured.If placed above and below the fish body 2 as shown in Figure 8, the inside of the body of the live fish 2 can be measured. It is something that can be done.

In FIGS. 9 and 10, d is a live closing device disposed at the end of the stationary U-shaped groove 1, and a pair of live fish is opened and closed by the operating means 35 on the tip side of the U-shaped groove 1. Gripping member 36.3
A window or gap 37 corresponding to the medulla oblongata of the live fish 2 is provided in the gripping member 36.
A knife 39 that is moved forward and backward by an operating means 38 to cut the medulla oblongata is provided oppositely to the live fish 2 that is stationary within the U-shaped groove l for stationary use.
As the stop member 4 opens, the grip member 36.
When the gripping members 36 and 36 close and grip the live fish 2, the blade 39 moves forward and cuts the medulla oblongata of the live fish 2. By cutting off the brain, separating the respiratory center and the 8-stroke center, stopping breathing and the 8-stroke center, and continuing the life phenomena of the cells, we mechanically perform a vitalizing process that maintains good meat quality for a long period of time. It is something that can be done.

C1. Effects of the Invention The method and apparatus of the present invention as described above can quickly and reliably bring a live fish taken out of the water to a standstill simply by placing it in a U-shaped groove.

By keeping the live fish stationary, mechanical measurement, sorting, processing, and other processing of live fish, which was previously impossible, becomes possible, and further spread and development of live fish distribution and reduction of product costs can be expected.

Since it has a simple structure using only a U-shaped groove and an introduction member and does not require power, the equipment and operation can be extremely economical.

It has special effects such as:

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the device related to the present invention, FIG. 2 is a front view of the same as above, FIG. 3 is a side view of same as above, FIG. 4 is a side view showing an example of a combination of counting devices, and FIG. The figure is a side view showing an example of a combination of measuring devices, FIG. 6 is a side view showing an example of a combination of measuring devices, FIGS. 7 and 8 are front views showing examples of changes in the measuring position, and FIG. The figure is a side view showing an example of a combination of live closing devices, and Figure 1Q is a plan view of the same. l...U-shaped groove 2...Live fish 5...Applicant for introduction parts Ishi 1) Yukio representative Patent attorney Mikio Segawa faction - Ward U) Aji ~ Ward U) Ajisun-ku Ajii-ku 1-ku-ha CR+ ku-ha 9-ku procedural amendments to the Patent Office Commissioner Satoshi Uematsu 1, Display of the case 1990 Patent Application No. 302662 2, Name of the invention Method for keeping live fish still and Device 3, relationship with the case of the person making the amendment Patent Applicant Address 2-12-4 Yaizu, Yaizu City, Shizuoka Prefecture Name
Stone 1) Yuki 4th generation
Manager 5, the following is written between the "Detailed Description of the Invention" and "Brief Description of the Drawings" columns in the specification subject to amendment, Drawing 1, and lines 5 and 6 on page 9 of the middle part of the specification. Join as follows. ``Furthermore, as shown in FIGS. 11 and 12, the U-shaped groove described above separates the bottom part from the side wall, and the bottom part is formed by a drum-shaped roller.
a, the side wall lil is attached to the frame ld by a pair of parallel links lc, and the upper end of each is connected to the lifting rod 1g by engagement with the elongated hole 1e and the bottle 1f, then the lifting rod Ig is formed. When lowered by the screw 1h screwed into the frame 1d, the parallel link lc pushes the side wall 1b inward as shown by the chain line in FIG. It can be adjusted freely according to the fish body 2 by rotating the drum-shaped roller Ia.
It is something that can be sent out smoothly. In this case, the mechanism used to adjust the corresponding spacing of the side walls lit is not limited to the above-mentioned parallel link lc, but any mechanism that can move the pair of side walls in and out in a corresponding manner can be used.
Of course, other mechanisms can be selected and adopted as desired. 1. From the last line of page 13 to the first line of page 14 at the top of the same page, the words ``This is a plan view.'' were replaced with ``Plan view. Figure 11 is a partial cutaway showing an embodiment of a variable width U-shaped groove.'' The side view and FIG. 12 are enlarged vertical cross-sectional rear views of the same as above.''that's all

Claims (2)

[Claims] (1) A method for keeping a live fish stationary, which is characterized by placing the live fish in a U-shaped groove and making the fish stand upright with its body side in contact with the side wall. (2) It is equipped with a U-shaped groove formed to contain a live fish and to make the fish body stand up by contacting the body side with the side wall, and an introduction member for introducing the live fish into this U-shaped groove. A device that keeps live fish still.