JP3071195B1 - Fish processing equipment - Google Patents

Abstract

An object of the present invention is to provide a fish processing apparatus capable of reliably removing bones without remaining, and improving the yield in as large a form as possible. SOLUTION: A support member 72 is provided so as to be vertically adjustable in proximity to a conveying direction A upstream side of a pair of fillet cutting blades 50a, 50b, and a direction in which the support member 72 approaches each other as it goes upward. Mounting surfaces 71a, 71b inclined to each other
Are formed, and a guide member 73 is provided on each of the mounting surfaces 71a and 71b.
a and 73b are movably fixed by screws 83a and 83b, and the height positions of the guide members 73a and 73b are adjustable according to the size of the fish F.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fish body obtained by removing at least the head of fish such as bonito, mackerel, etc., by removing a residue including a middle bone and a spine, and a cut portion (hereinafter also referred to as a fillet portion). The present invention relates to a fish processing apparatus that separates a fish body.

[0002]

2. Description of the Related Art A fish body F in which the abdomen is opened, in which the abdomen is removed by cutting the abdomen vertically in the head and caudal direction and removing the internal organs.
Is shown in FIG. This fish body F has one body 1a on the left and right sides,
1b is connected by a back portion 2; a middle bone 3, a spine 4 and an abdomen 5 are left on one body 1a, and the other body 1
Only the abdomen 6 remains in b.

[0003] Such a fish body F is used as a processed fish body for dried fish such as saury and horse mackerel, but in order to be a processed fish body for frying, the above-mentioned middle bone 3, spine 4, and abdominal bones 5, 6 are removed. And 3 pieces of one-piece body 1a, 1b are divided, or the middle bone 3, the spine 4, and the abdomen 5, 6
Is removed and the back part 2 is cut to a so-called open state without a bone cut near the back skin. In order to perform such processing, a fish processing apparatus is conventionally used.

FIG. 11 is a simplified cross-sectional view showing a structure around a fillet cutting means 10 of a typical prior art fish processing apparatus. FIG. 11A shows a cut state when a fish F is small. FIG. 11 (2) shows a cut state when the fish F is large. This fish processing apparatus uses a fish F whose head has been removed as a middle bone between the back and the abdomen, in a posture in which the root of the head on the trunk side including the tail is at the top and the back is up. A pair of endless transport belts 11a and 11b sandwiching the upper part from the both sides in the thickness direction in the head-to-tail direction form a horizontal transport path perpendicular to the paper surface of FIGS. 11 (1) and 11 (2). While being transported along, the abdomen is opened by a pair of horizontal rotating round blades, the internal organs are removed by a gutting pulley, and the processing is performed to a state similar to the above-described bone-opened fish body F shown in FIG. FIG. 1 includes a medial bone 3, a spine 4, and abdominal bones 5, 6 by fillet cutting means 10 having a pair of fillet cutting blades 12a and 12b disposed in the conveyance path so as to face in a V-shape.
1 (1) and FIG. 11 (2) are configured so as to be divided into a residue portion 13 shown by hatching and fillet portions 14a and 14b on both sides thereof.

The fillet cutting means 10 comprises a pair of fillet cutting blades 12a, 12b,
11 (1) and 11 (2), which are arranged closer to the upstream side in the transport direction, which is perpendicular to the paper surface of FIGS. , 12b, that is, the middle bone 3, the spine 4, and the abdominal bones 5, 6 do not remain in each fillet portion 14a, 14b, and as much fish meat as possible is filled in each fillet portion 14a, 14b. And a guide means 15 for positioning and guiding to a cutting position that can be left on the 14b side.

The guide means 15 extends along the transport path and is open upward. A substantially U-shaped support member 16 is provided on the support member 16 in the transport direction shown in FIGS. 11 (1) and 11 (2). A pair of plate-like guide members 17a and 17b whose cross-sectional shape viewed from the upstream side is fixed in an inverted V shape;
Abdominal portion 18a, 1 of fish F loaded on 7a, 17b
And a pair of bellows holding members 19a and 19b which resiliently press the side 8b from both sides in directions approaching each other.

The support member 16 is provided on the base 20 as shown in FIG.
It has a pair of rising portions 21a and 21b which rise upward from both widthwise ends which are the left and right directions of (1) and FIG. 11 (2). Mounting surface 22 inclined in a direction approaching
a, 22b are formed on each of the mounting surfaces 22a, 22b, as described above, in the form of inverted V-shaped guide members 17a, 17b.
Are fixed respectively.

Such a supporting member 16 can be displaced in the vertical direction in accordance with the size of the fish body F by means of a vertical position adjusting means (not shown), and FIG. This shows a state in which a relatively small fish body among the types of fish bodies F is mounted.

In such fillet cutting means 10, the vertical position of the support member 16, and therefore of the guide members 17a, 17b, extends in the circumferential direction of each fillet cutting blade 12a, 12b by the position adjusting means (not shown). Each guide member 1 is located inside each of the virtual planes 24a and 24b, which are cutting positions facing each other including the cutting edges 23a and 23b.
7a and 17b are set to be arranged. Further, each of the fillet cutting blades 12a and 12b has a
The respective virtual planes 24a and 24b including a and 23b are positioned so as to be disposed slightly outside the middle bone 3, the spine 4, and the abdominal bones 5 and 6. Therefore, when the fish body F is cut by each fillet cutting blade 12a, 12b,
Each surface 25 facing the outside of each guide member 17a, 17b
a, 25b and the mutually facing surfaces 26a, 26b of the fillet cutting blades 12a, 12b, ie, the virtual plane 24.
The remaining portion 13 including the middle bone 3, the spine 4, and the abdominal bones 5, 6 is cut off by an interval ΔL1 between the a and 24b in the thickness direction.

Compared to such a small fish F, FIG.
When the large fish F is cut as shown in (2), the vertical thickness T2 of the back portion 2 is larger than the thickness T1 of the small fish, and is supported by the vertical position adjusting means (not shown). The member 16 and the guide members 17a and 17b are displaced downward by the distance ΔH, and the remnant portion 13 includes the middle bone 3, the spine and the abdominal bones 5, 6, and the bone fragments remain on the fillet portions 14a and 14b. In a state where the distance ΔL2 between each surface 26a, 26b of each fillet cutting blade 12a, 12b and each surface 25a, 25b of each guide member 17a, 17b is increased,
A cutting operation is performed.

[0011]

In such a conventional technique, as shown in FIG. 11 (2), when cutting a large fish, the support member 16 and the guide members 17a, 17
When the cutting operation is performed in a state in which b is displaced downward with respect to each of the fillet cutting blades 12a and 12b, the surfaces 26a and 26b of each of the fillet cutting blades 12a and 12b and the guide members 17a and 17b as described above. ΔL2 with each of the surfaces 25a and 25b is large, so that the thickness of the fish meat portion 27 remaining on the middle bone 3, the spine 4, and the abdominal bones 5 and 6 is also large, and there is a problem that the yield is poor.

When the fish body F is cut at the position where the support member 16 and the guide members 17a and 17b are lowered as described above, as shown in FIG.
There is a problem that the edge portions 28a, 28b shown with diagonal lines are cut off, so that the shapes of the fillet portions 14a, 14b are reduced, and the commercial value is reduced.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a fish processing apparatus capable of reliably removing bones without remaining, and improving the yield in as large a form as possible.

[0014]

SUMMARY OF THE INVENTION According to the present invention, a fish body having a head removed is placed on a back and abdomen in a posture in which the root of the head on the trunk side including the tail is the head and the back is upward. The intermediate part between them is conveyed by a pair of endless conveying belts sandwiching the head-to-tail direction from both sides in the thickness direction, and during this conveyance, the stomach and the spine are removed by a pair of fillet cutting blades after removing the internal organs by laparotomy. In a fish processing apparatus that divides a residue portion including a fillet portion and a fillet portion on both sides thereof, a pair of mounting surfaces provided near the upstream side in the transport direction of the pair of fillet cutting blades and inclined in a direction closer to each other as it goes upward. A pair of plate-like guide members provided on the support member so as to be vertically movable along each mounting surface, and a pair of bellies spring-biased from both sides toward each guide member Supressing part A fish processing apparatus which comprises and.

According to the present invention, the fish body whose head has been removed in advance is sandwiched by a pair of transport belts, and the root of the head on the trunk side including the tail is at the head, and the back is at the top. An intermediate portion between the back and the abdomen, specifically, the vicinity of both sides of the medial bone, is conveyed while being clamped in the craniocaudal direction from both sides in the thickness direction.

The fish conveyed while being held between the pair of conveyor belts in this manner has only its head removed and its internal organs remain in the belly, so that the abdomen is opened during conveyance. Then, the internal organs are removed, cut by a pair of fillet cutting blades, and divided into a residue portion including a middle bone and a spine and fillet portions on both sides thereof.

In such a fish processing apparatus, a support member is provided in the vicinity of the pair of fillet cutting blades on the upstream side in the transport direction. The support member has a pair of mounting surfaces that are inclined toward each other as it goes upward, and a plate-like guide member is movably provided on each of these mounting surfaces. The fish body from which the internal organs have been removed and conveyed by being sandwiched by a pair of conveyor belts on each of the guide members is resiliently pressed from both sides by a ventilating member, and the ventilated portion of the fish body is directed outward. Supplied to the pair of fillet cutting blades in a state where they are prevented from being opened,
It is cut into a residue part including a middle bone, a spine, and a belly bone, and a fillet part on both sides thereof.

At this time, since the pair of guide members are movable along each mounting surface of the support member, when the fish body changes from a small fish body to a large fish body, each guide member is connected to each mounting surface of the support member. Along with the lower end of each guide member, thereby allowing the vertical thickness of the back of the fish to be increased, and that portion of the fish belly rest being cut into each fillet. It is possible to prevent the blade from entering the inside of the blade much more than the cutting edge, and to remove the residue portion including the middle bone, the spine and the abdomen without inadvertently cutting off the meat part. As a result, it is possible to reliably prevent the bone fragments and the like from remaining on the fillet portion, and to improve the yield as much as possible.

More specifically, by moving each guide member along each mounting surface of the support member, the respective guide members are moved in a horizontal direction, that is, when the respective guide members move relative to each other. Due to the small amount of displacement in the approaching / separating direction, even if the fish to be processed changes from a small fish to a large fish, the position supported by each guide member is greatly shifted in the vertical direction, and the remaining portion has a central bone. , The spine and the abdomen are included, and the projecting amount of the belly bush portion of the fish body inward from the passing position of each cutting edge of each fillet cutting blade can be made smaller than the vertical displacement amount. . In this way, the yield is improved, the edge of the ventilated portion is prevented from being greatly cut off, the shape of the fillet after cutting is prevented from becoming smaller in the unfolded state, and the thickness is unnecessarily increased. It is possible to prevent the fish meat from being largely cut off, thereby improving the yield as compared with the related art.

Further, the present invention is characterized in that the support member is provided so as to be vertically displaceable.

According to the present invention, each guide member is provided movably with respect to the support member along each mounting surface, and the support member itself can be displaced up and down. It is possible to change only the vertical position without changing the horizontal spacing of the sections.
As a result, unlike the case of different types of fish, even if the degree of thickness change is large compared to the degree of change in the size of the fish body instead of the similar size change of the fish body, By adjusting the position in the direction, the shape of the fillet portion is not unnecessarily reduced, and a decrease in yield can be prevented.

[0022]

FIG. 1 is a simplified side view showing a fish processing apparatus 31 according to an embodiment of the present invention.
3 is a plan view of the fish processing apparatus 31 viewed from above in FIG. 1, and FIG. 3 is a plan view of the fish processing apparatus 3 shown in FIG. 1 and FIG.
It is a figure which shows typically the state in each process of the fish body F processed by 1. The fish processing apparatus 31 puts the fish F from which the head 32 has been removed in a posture in which the root 35 of the head 32 on the side of the body 34 including the tail 33 is at the head and the back 36 is directed upward. A pair of endless conveying belts 38a and 38b sandwiching an intermediate portion between the abdomen 37 and the head-to-tail direction as the horizontal direction in FIGS. Abdomen 39 for cutting the abdomen 37 of the fish body F, which is transported substantially horizontally toward the downstream in the transport direction A by the transport belts 38a and 38b of the transport means 39, using a pair of horizontal rotating round blades 41a and 41b; Cutting means 42 and abdominal cutting means 42
The abdomen 37 is cut off and the stomach 37 is opened. Cut on both sides of 44,
A residue portion 48 including the middle bone 44, the spine 45, and the abdominal bones 46, 47, and fillet portions 49a, 49b on both sides thereof.
And a fillet cutting means 51 having a pair of fillet cutting blades 50a and 50b, and a pair of fillet cutting blades 50a and 50b provided in the vicinity of the upstream side in the transport direction A of the pair of fillet cutting blades 50a and 50b.
Guide means 52 for adjusting and guiding the cutting position by each fillet cutting blade 50a, 50b so as to be adjustable.

The fillet cutting means 51 opens the fillet portions 49a, 49b from which the residue portions 48 have been removed by the fillet cutting blades 50a, 50b, as shown in FIG. Or, in a state of being separated into two pieces, ie, each fillet cutting blade 50
The cutting position is shifted according to the vertical positional relationship of the fish body F with respect to the cutting edge positions of a and 50b, and the tail 33 is left with the two fillet portions 49a and 49b connected, and only the fillet without the tail 33. Is configured to be arbitrarily set to a state where is separated.

The transfer means 39 is provided with arrows B1, B2 around a vertical rotation axis from a motor 55 via a speed reducer 56.
Drive-side pulleys 57a, 57 that are driven to rotate in
b, a pair of driven pulleys 59a, 59b rotatably supported by bearings 58 about a vertical rotation axis, and driven to rotate in the directions of arrows C1, C2 following each of the conveyor belts 38a, 38b; The pair of transport belts 38a and 38b wound around and stretched between the side pulleys 57a and 57b and the driven side pulleys 59a and 59b;
The lining parts 61a, 61a, which are driven in synchronization with each other in the transport direction A in close proximity to each other of the transport belts 38a, 38b,
A plurality of guide rollers 62a, 62b for guiding the first roller 61b
And a first portion gently inclined downward toward the downstream in the transport direction A from below the driven pulleys 59a and 59b to below the rotary round blades 41a and 41b of the abdomen cutting means 42.
And an abdominal guide chute 63.

In the vicinity of the downstream end of the first abdominal guide chute 63 in the transport direction A, the pair of rotary round blades 41 are arranged. Each rotary round blade 41 is rotatably driven by a driving means 65 having a motor (not shown) which is driven to rotate in the directions of arrows D1 and D2 around a vertical rotation axis. These rotary round blades 41a, 41b are connected to the respective transport belts 38a, 38b.
Are arranged so as to partially overlap with each other in the transport path of the fish body F by the inner lining portions 61a and 61b, and the rotation direction D1 is set so that the moving direction of the outer peripheral portion in the transport path is along the transport direction A. , D2 directions are set.

The rotating round blades 41a and 41b of the abdomen cutting means 42 cut the belly fin portion 66 including the belly fin and the vicinity of the anus of the fish body F. Without being scattered outward, the rotating round blades 41a, 41b can be discharged in a substantially constant direction toward the downstream in the rotation direction from the region where the cutting edges overlap. On the downstream side of the abdomen cutting means 42 in the transport direction A, the gutting pulley 43 is disposed.

The gut pulley 43 is driven to rotate in the direction of arrow E about a horizontal rotation axis, and has a plurality of scraping portions 67 that project radially outward. The rotation direction E is set in a direction in which each scraping unit 67 moves in a direction opposite to the transport direction A when disposed on the transport path side where the fish F passes. On the upstream side in the transport direction A of the scraping area where each scraping unit 67 is arranged upward,
A second flat abdominal guide chute 69 is provided in the horizontal direction and extends downstream from a position immediately above the intersection 68 on the downstream side of the rotary round blades 41a and 41b of the abdomen cutting means 42 and downstream.
This prevents the abdomen 37 of the fish F from dropping undesirably downward, or the base 35 of the head from dropping downward, so to speak, to reliably scrape and remove internal organs. It is provided to be able to.

The first abdominal guide chute 63 provided between the driven pulleys 59a and 59b and the rotary round blades 41a and 41b has a V-shaped or U-shaped cross section perpendicular to the longitudinal direction, for example. Stainless steel. The guide unit 52 is provided on the downstream side in the transport direction A of the gut pulley 43.

FIG. 4 is an enlarged side view showing the fillet cutting means 51, the guiding means 52, the gutting pulley 43 and the vicinity thereof. FIG. 5 is a view showing the fillet cutting means 51 and the guiding means as viewed from above in FIG. 52, Gutting pulley 4
6 is a cross-sectional view taken along line VI-VI in FIG. 4. In FIG. 4,
The transport belts 38a and 38b are omitted for ease of illustration. The guide means 52 includes a pair of fillet cutting blades 5.
A supporting member 72 is provided near the upstream side in the transport direction A of the first and second mounting members 71a and 71b and has a pair of mounting surfaces 71a and 71b inclined in a direction approaching each other as it goes upward. , 71b along the vertical directions G1, G2 and the horizontal directions H1,
A pair of plate-like guide members 73a, 73b provided movably in the H2 direction, and a pair of belly press members 74a, 7 spring-biased from both sides toward the respective guide members 73a, 73b.
4b, and a vertical position adjusting means 75 for vertically displacing the support member 72.

The supporting member 72 is provided with the vertical position adjusting means 7.
The board 7 to which the upper end of the screw shaft 76 is rotatably connected.
7 and a pair of mounting pieces 78a and 78b, which are connected to the substrate 77 so as to be displaceable in the left and right directions H1 and H2 and have a wedge-shaped cross section perpendicular to the longitudinal direction. Each mounting piece 78
The mounting surfaces 71a and 71b are formed on the a and 78b, respectively. Each of the mounting pieces 78a and 78b has a mounting surface 71.
a, 71b, and each pair of screw holes 81a, 81b extending in the axial direction perpendicular to the mounting surfaces 71a, 71b.
Is engraved. Each guide member 73a, 73b is formed with a pair of guide slots 82a, 82b. Each of the pair of guide slots 82a and 82b is parallel to each other. Screw holes 81a, 81b of each mounting piece 78a, 78b of support member 72
The guide slots 82a, 8a of the guide members 73a, 73b
Screws 83a and 83b are screwed by inserting 2b respectively. With such a configuration, the height of each guide member 73a, 73b with respect to the support member 72 is determined by the size of the fish body F to be processed.

The screw shaft 76 is screwed by vertically inserting a horizontal member 84 connected to a frame (not shown) of the fish processing apparatus 31 and screwing the operation handle 85 provided at the lower end of the screw shaft 76. The support member 72 is raised by rotating the support member 72 around the rotation axis in the direction of the arrow J1 and the arrow J2.
The support member 72 can be lowered by rotating in the direction.

With the vertical position adjusting means 75, the supporting member 72 can be moved up and down together with the guide members 73a and 73b in accordance with the size of the fish F to support the fish F at an appropriate height. By loosening the screws 83a and 83b, the guide members 73 and 73b are attached to the mounting surfaces 71a and 71b of the mounting pieces 78a and 78b of the support member 72.
, The guide members 73a and 73b can be fixed at a height position corresponding to the size of the fish body.

Each of the guide members 73a and 73b in which such guide slots 82a and 82b are formed is connected to each of the transport belts 38a and 38a toward the downstream in the transport direction A as shown in FIG.
In order to open the inside of the stomach of the fish F conveyed by 38b, the guide members 73a and 73b have insertion portions 86a and 86b which are tapered toward the upstream side in the conveyance direction A of the guide members 73b and whose distal ends are smoothly curved. . The insertion portions 86a, 86
b, on the upstream side in the transport direction A of the b.
3 are disposed close to each other, and immediately after the scraping portion 67 of the Gutting pulley 43 is inserted into the belly of the fish body F, the bellows portions 66a, 66b present on both sides of the belly are pushed open on both sides. , Each of the filet cutting blades 50a, 5 disposed close to the downstream end of each of the guide members 73a, 73b in the transport direction A.
0b.

At this time, each of the abyss portions 66a, 6 of the fish F
6b is connected to each shaft 70a, 70a by a tension spring 69a, 69b.
Since the downstream end portions are resiliently pressed from both sides by the bellows holding members 74a and 74b which are spring-biased in a direction in which the downstream end portions approach each other around the center 70b, each gutter portion is maintained. As a result, the position of cutting by each of the filet cutting blades 50a and 50b is shifted to the outside, so that a problem that bone fragments such as abdominal bones remain can be reliably prevented, and the abdominal bone and the middle can be accurately prevented. Bone, spine and the like can be guided so as to be inside the respective filet cutting blades 50a and 50b.

The limit of the angular displacement inward of the downstream ends of the aforesaid holding members 74a, 74b is determined by the axes 70a, 70b.
It is limited by positioning bolts 93a, 93b provided between the tension springs 69a, 69b and the upstream end where the tension springs 69a, 69b are locked.

FIG. 8 is a simplified cross-sectional view showing the structure around the fillet cutting means 51 and the guide means 52 by the fish processing apparatus 31. FIG. 8A shows a cut state when the fish F is small. FIG. 8B shows a cut state when the fish F is large. When the fish F is supplied to the optimum cutting position of each of the filet cutting blades 50a and 50b by the guide means 52, when the fish F is small,
As shown in FIG. 8A, each guide member 73a, 73
b is arranged at a position raised with respect to the support member 72.
As a result, the fish body F is separated from each fillet cutting blade 50a, 50
The inside bone 4 of the fish body F is located inside the virtual planes 87a and 87b including the cutting edge of the b and outside the virtual planes 88a and 88b including the outer surfaces of the guide members 73a and 73b.
4, including the spine 45 and the abdominal bones 46 and 47, and arranged at a position where the meat portion is as small as possible, cut in this state, and a hatched residue portion 48 and each fillet portion 49a and 49b can be separated.

When the fish body F is large, the middle bone 44
Is larger than the small fish, and the thickness T2 from the middle bone 44 to the top portion 91 of the back 36 is also larger than the thickness T1 of the small fish, so that the guide members 73a and 73b are attached to the support member 72. It is attached at a position lowered downward by a distance ΔH2. At this time, each guide member 7
The angles θ1 and θ2 of 3a and 73b are unchanged, and the upper end 89
Since the positions of the a and 89b are only lowered, each pillow portion has a cutting width in a direction perpendicular to the surface facing the outside of each of the guide members 73a and 73b, that is, each fillet cutting blade 50
virtual planes 87a and 87b including the cutting edges a and 50b, and a virtual plane 8 including the outer surfaces of the respective guide members 73a and 73b.
The residue portion 48 can be cut without changing the distance between the residue portions 8a and 88b, and therefore, without lowering the yield and cutting off the lower edge portion of each belly. As shown in FIG. 9, the shape of only the lower edges 92a, 92b of each of the ventilated portions 66a, 66b, which had been cut off in the past, can be enlarged, and thus the bone fragments can be left. Without each fillet part 49a, 49b
Can be increased to improve the yield.

Further, as described above, each guide member 73
If the useless cutting of the meat portion still occurs even if the a and 73b are adjusted vertically with respect to the support member 72, the operation handle 85 is operated to operate the guide members 73a and 73b.
Height position of the fillet portion 49a, 4 after cutting
The supply position of the fish F to each of the fillet cutting blades 50a and 50b can be adjusted so that no bone fragments remain on 9b. As a result, it is possible to more reliably prevent the remains of bone fragments, improve the yield, and obtain the fillet portions 49a and 49b having large shapes.

The yield thus improved can be improved by about 5 to 10% as compared with the conventional case.
Such improvement in yield becomes remarkable when processing a large amount of fish, and the processing efficiency of fish with the improvement in yield is significantly improved, and a fillet portion with high commercial value can be obtained.

[0040]

According to the present invention, a fish body whose head has been removed in advance is sandwiched between a pair of conveyor belts, and the root of the head on the trunk side including the tail is at the top and the back is at the top. In a posture, an intermediate portion between the back and the abdomen, specifically, the vicinity of both sides of the medial bone is conveyed while being clamped in the craniocaudal direction from both sides in the thickness direction.

The fish conveyed while being sandwiched by the pair of conveyor belts in this way has only its head removed, and its internal organs remain in the belly, so the abdomen is opened during conveyance. Then, the internal organs are removed, cut by a pair of fillet cutting blades, and divided into a residue portion including a middle bone and a spine and fillet portions on both sides thereof.

In such a fish processing apparatus, a supporting member is provided in the vicinity of the pair of fillet cutting blades on the upstream side in the transport direction. The support member has a pair of mounting surfaces that are inclined toward each other as it goes upward, and a plate-like guide member is movably provided on each of these mounting surfaces. The fish body from which the internal organs have been removed and conveyed by being sandwiched by a pair of conveyor belts on each of the guide members is resiliently pressed from both sides by a ventilating member, and the ventilated portion of the fish body is directed outward. Supplied to the pair of fillet cutting blades in a state where they are prevented from being opened,
It is cut into a residue part including a middle bone, a spine, and a belly bone, and a fillet part on both sides thereof.

At this time, since the pair of guide members are movable along each mounting surface of the support member, when the fish body changes from a small fish body to a large fish body, each guide member is connected to each mounting surface of the support member. Along with the lower end of each guide member, thereby allowing the vertical thickness of the back of the fish to be increased, and that portion of the fish belly rest being cut into each fillet. It is possible to prevent the blade from entering the inside of the blade much more than the cutting edge, and to remove the residue portion including the middle bone, the spine and the abdomen without inadvertently cutting off the meat part. As a result, it is possible to reliably prevent the bone fragments and the like from remaining on the fillet portion, and to improve the yield as much as possible.

More specifically, each guide member is moved along each mounting surface of the support member, so that each guide member moves in a horizontal direction, that is, when each guide member moves relative to each other in the vertical direction. Even if the fish to be processed changes from a small fish to a large fish because the amount of displacement in the approaching / separating direction is small, the position supported by each guide member is largely shifted in the vertical direction, and The spine and the abdomen are included, and the projecting amount of the fish body inwardly from the passing position of each cutting edge of each fillet cutting blade can be reduced as compared with the vertical direction. In this way, the yield is improved, the edge of the ventilated portion is prevented from being greatly cut off, the shape of the fillet after cutting is prevented from becoming smaller in the unfolded state, and the thickness is unnecessarily increased. It is possible to prevent the fish meat from being largely cut off, thereby improving the yield as compared with the related art.

According to the present invention, each guide member is provided movably with respect to the support member along each mounting surface, and the support member itself can be displaced up and down. It is possible to change only the vertical position without changing the horizontal interval of the upper end. As a result, as in the case of different types of fish, even if the degree of thickness change is larger than the degree of change in size in the dorso-ventral direction instead of similar size change of the fish body, By adjusting the position of the support member in the vertical direction, the shape of the fillet portion is not unnecessarily reduced, and a decrease in yield can be prevented.

[Brief description of the drawings]

FIG. 1 is a side view schematically showing a fish processing apparatus 31 according to an embodiment of the present invention.

FIG. 2 is a plan view of the fish processing apparatus 31 as viewed from above in FIG.

FIG. 3 is a diagram schematically showing a state of each step of a fish body F processed by the fish body processing apparatus 31 shown in FIGS. 1 and 2;

FIG. 4 is an enlarged side view showing the fillet cutting means 51, the guide means 52, the gutting pulley 43 and the vicinity thereof.

FIG. 5 is a plan view of the fillet cutting means 51, the guide means 52, the gutting pulley 43 and the vicinity thereof as viewed from above in FIG.

FIG. 6 is a sectional view taken along section line VI-VI in FIG. 4;

FIG. 7 is a side view showing a configuration for adjusting the height position of each guide member 73a, 73b.

FIG. 8 shows fillet cutting means 51 by the fish processing device 31.
And a simplified cross section showing the configuration near the guide means 52,
FIG. 8A shows a cut state when the fish F is small, and FIG. 8B shows a cut state when the fish F is large.

FIG. 9 is a view showing fillet portions 49a and 49b in an opened state processed by the fish processing apparatus 31.

FIG. 10 is a diagram showing a fish body F in a belly-open state.

FIG. 11 is a simplified cross-sectional view showing a configuration around a fillet cutting means 10 of a typical prior art fish processing apparatus, and FIG. 11 (1) shows a cut state when a fish F is small. 11 (2) shows a cut state when the fish F is large.

FIG. 12 is a view showing a state in which fillet portions 14a and 14b processed by a conventional fish processing apparatus are developed.

[Explanation of symbols]

 31 fish processing apparatus 32 head 33 tail 34 torso 35 base of head 36 back 37 abdomen 38a, 38b transport belt 39 transport means 41a, 41b rotating round blade 42 abdomen cutting means 43 gut pulley 44 middle bone 45 spine 46, 47 belly bone 48 residue part 49a, 49b fillet part 50a, 50b fillet cutting blade 51 fillet cutting means 52 guide means 71a, 71b mounting surface 72 support member 73a, 73b guide member 74a, 74b bellows pressing member 75 vertical position adjusting means

Claims (2)

(57) [Claims] 1. A fish body from which a head has been removed is placed in a posture in which the root of the head on the trunk side including the tail is at the head and the back is upward, and the middle part between the back and the abdomen is head-to-tail direction. After being transported by a pair of endless transport belts sandwiched from both sides in the thickness direction, the abdomen is removed during this transport to remove internal organs, and a pair of fillet cutting blades is used to remove the residue portion including the medial bone and the spine and the fillets on both sides thereof. In a fish processing apparatus that is divided into a part and a support part, the supporting member is provided near the upstream side in the transport direction of the pair of fillet cutting blades, and has a pair of mounting surfaces that incline in a direction approaching each other as it goes upward. The member includes a pair of plate-like guide members provided movably in the vertical direction along each mounting surface, and a pair of bellows holding members spring-biased from both sides toward each guide member. Features Fish processing equipment. 2. The fish processing apparatus according to claim 1, wherein the support member is provided so as to be vertically displaceable.