JPS59227237A - Fish egg taking-out apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a fish ovary removal device.

Conventional equipment for removing ovaries from fish, such as cod, involves using a knife to open the fish's abdomen and remove the ovaries.
Due to the size of the fish body, variations in posture, and the size of the ovaries, there were disadvantages in that the ovaries could be damaged or the ovaries could not be removed.

An object of the present invention is to provide a Lido East Europe 1 (IL device) which allows removal of the ovary without damaging it and which has an extremely simple configuration.

The ovary extraction device of the present invention includes a transport means for transporting a fish from which the fish head has been removed along a predetermined track, and a transport means for transporting the fish from which the fish head has been removed along a predetermined track, and a means for pushing the abdomen of the fish traveling along the track in a direction from the tail toward the head (OH). It has an abdominal pressing body and an elastic support means for elastically displacing the abdominal pressing body and the conveying means together along a direction perpendicular to the running track, and the fish body having an ovary can press the abdomen. It is characterized by being configured so that the ovaries are removed as it passes through the body.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a front view showing the entire embodiment of the present invention, and FIG.
The figure shows an enlarged view of the main part of the present invention, and FIG. 3 shows a side view of the main part.

The wheel 1 consists of a disc rotating around a horizontal axis 2,
Fish striking tools 3-3 are arranged at equal intervals along the outer periphery. In this fish head holder, the tool 3 is in the shape of a bag that opens outward in the radial direction of the wheel, and a patch plate 4 that contacts the tip of the fish head is attached to the bottom. A hole 5 for inserting a skewer and a slit 6 for driving a fork are made. Wheel I
A cam (not shown) concentric with the shaft 2 is provided on the side surface of the shaft 2, and the cam (not shown) is adapted to insert or extract a skewer into the hole 5 and insert or extract a fork into the slit 6.

The shape of this cam is such that the fish head holder is 15mm from the position directly above the tool 3.
The skewer should be inserted into the fish head at a rotation of 75° or 60”.
The fork is driven into the fish head at a position where the skewer and fork are rotated 100” or 100”, and both the skewer and fork are rotated approximately 27o from directly above.
° It is shaped so that it can be removed from the fish head in a rotated position.

A chain 7 runs below the wheel 1 with a space slightly shorter than the height of the fish.

This chain 7 has an upper running track 1o and a lower running track 1ift 11 by means of a driving sprocket 8 and a driven sprocket 9.
run along. Furthermore, as shown in FIG. 4, is this chain 7 two chains running parallel to each other? A
, 7B, pent attachments 12A and 12B are integrally formed on the pin link plates facing each other, and the tail of the fish body is held between the triangular unevenness at the tip thereof. Also, the chain 7 of Nijo
A.

7B gradually approaches from an open state on the upper running track 10, and after passing directly under the shaft 2 of the wheel, it becomes a close state, and this close state is maintained until the fish dropping position.

Above the front half of the upper running track 10 of the chain 7, there is a shielding plate I for preventing the tail of the fish from coming into contact with the chain.
2 is provided, and a sliding plate 13 for maintaining the posture of the fish body is provided from the periphery of the drive sprocket 8 to the lower part of the lower running track 11. Further, a chute 14 is provided for receiving the fish head released after the wheel 1 passes directly under the shaft 2 and starts to rise.

An ovary extraction section 15 is provided on the lower running track 11 of the chain 7. As shown in FIGS. 2 and 3, this ovary extraction section 15 has an axis I7 that is freely displaceable in the longitudinal direction of the slit, and that is displaceable in the longitudinal direction of the slit. Support to prevent rotation,
A blade 19 is provided on the shaft 17, which is inclined in a predetermined direction and whose ridge 18 at the tip is bright enough to prevent cutting into the fish belly. axis 1
Both ends of 7 are elastically supported by springs 20 and 20, and are appropriately displaced depending on the size and hardness of the fish.

A pair of left and right guides 21, 21 are provided at a position closer to the chain 7 than the blade 19 to prevent the fish from escaping. A chute 22 for receiving the ovaries is provided below the ovary removal section 15, and a chute 23 for receiving the fish is provided below the fish body dropping position slightly downstream of the ovary removal section 15.

Next, the effect will be explained.

The wheel 1 continuously rotates at a predetermined rotational angular velocity, and the chain 7 runs at a speed much faster than its circumferential speed.

When the tool 3 reaches directly above the shaft 2, the fish F with the fish head facing downward is thrown into the fish head receiver of the wheel l. Next, a skewer is inserted through the hole 5 and one fish head is passed through, and the fish head receiver is fixed to the tool 3. Next, a fork enters through the slit 6 and destroys the root of the middle bone and the bones and muscles in the area from there to the back of the head. The fishmonger hits the shielding plate 12 while the fishmonger remains bent downward due to the weight of the fish itself. The fish body in this bent position hangs vertically as soon as it passes the end of the shielding plate 12, and its tail is clamped by the chain 7. Since the running speed of the chain 7 is much faster than the circumferential speed of the wheel 1, the fish body is pulled,
First, the destroyed part is torn off by the fork, then the tensile force is concentrated on the abdomen and the abdomen is torn off as well.

When the abdomen is torn off, internal organs such as the digestive system are also pulled out, and at this time, the cavity is also pulled out, destroying the part of the ovary that connects to the egg-laying opening, making it easier to remove the ovary. In addition, the skin of the abdomen is torn off along with the internal organs, exposing part of the ovary.

After that, the fish caught on the chain 7 is moved to the sprocket 8.
It moves to the lower traveling track 11, slides on the sliding plate 13, and eventually reaches the ovary extraction section 15. Here, the tip of the blade [9] touches the part of the fish belly near the tail, and as the chain runs, it pushes out the ovary from the back. At this time, since the guides 21, 21 press the back of the fish, the fish does not escape. The extruded ovary is taken out on the chute 15. Subsequently, the chain 7 opens and releases the trapped fish, which falls onto the chute 23.

As in this example, the method of cutting the base of the backbone with a cutter and then tearing off the fish head pulls out the digestive system organs along with the fish head, destroying the spawning hole.
In particular, it has the effect of making it easier to push out the ovaries.

Next, another embodiment of the present invention will be described.

FIG. 5 shows a plan view of this embodiment, and FIG. 6 shows a cross-sectional view.

Fish bodies whose heads have been removed by cutting with a cutter or tearing off, etc. are transported to an upper conveyor 31 and a lower conveyor 3.
The back of the fish is held by a holding conveyor consisting of 2 and conveyed to the fish store first.A roller 33 rotatable about a shaft is provided at a predetermined position in contact with the abdomen of the fish, and the conveyor 31 A guide roller 34 defining a trajectory of .32 is elastically supported by a spring 35. Instead of the spring 35, elasticity due to the tension of the conveyor itself can be used.

The abdominal pressing body of the present invention is not limited to a blade with a rounded tip or a roller, but members of various shapes such as a rod, a cotton body, and a plate can be used. The ovaries can also be removed.

FIG. 7 shows a plan view of still another embodiment of the present invention. On the fish body conveyor 41, fish body conveyors 43-43 are arranged in parallel with each other in a direction parallel to the running direction R of the chain. Being tormented. The abdomen presser 44 has an edge inclined at a predetermined angle with respect to the running direction R. Therefore, when a fish whose head has been cut and removed is held and transported with its abdomen facing up, the abdomen presser 44 slides the abdomen from the tail toward the head and pushes out the ovary. As a modification of this embodiment, if the fish body conveyor sufficiently holds the fish body, an abdominal pressing body may be provided on the lower running path of the conveyor 41.

According to the present invention, the ovary can always be removed reliably and without causing any damage to the ovary, regardless of variations in the size of the fish body.

[Brief explanation of drawings]

FIG. 1 is a front view showing the entire embodiment of the present invention, FIG. 2 is a front view showing an enlarged view of the ovary extraction section 15 shown in FIG. 1, FIG. 3 is a side view of FIG. 2, and FIG. The figure is a plan view showing a portion of the chain 7 in FIG. 1. FIG. 5 is a plan view showing another embodiment of the present invention, and FIG. 6 is a cross-sectional view of FIG. 5. 7th
The figure is a plan view showing still another embodiment of the present invention. 7-Chain (!all feeding means) 15-Ovarian extraction section 17--Shaft 19--Sword (abdominal presser) 20-Spring 22-Ovarian extraction chute Patent applicant Noboru Ogawa Patent attorney Nishi 1) Arata

Claims (1)

[Claims] A transport means for transporting the fish from which the fish head has been removed along a predetermined trajectory; an abdominal pressing member for pressing the abdomen of the fish traveling on the i[ilt path in a direction from the tail toward the head; comprising elastic support means for elastically displacing the pressing body and the conveying means with respect to each other along a direction perpendicular to the running track;
A fish ovary removal device configured to remove the ovary when the fish body having the ovary passes through the abdominal presser.