JP2010098952A - Apparatus for removing slime of fish - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently and properly remove slime of a rod-shaped slender fish such as Muraenesox cinereus and Anguilla japonica, having a plenty of the slime while reducing the load on an operator. <P>SOLUTION: The apparatus for removing the slime of the fish removes the slime by nipping a fish body of the treating object with endless chains 45, 46, 75 and 76 from both sides, and rubbing the surface of the fish body with a pair of rotary brushes 11 and 12 to remove the slime while precisely conveying the fish body. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fish slimming device, and more particularly to a sliming device that removes "slimming" of the surface of a fish body of a rod-like fish such as a salmon or a salmon.

  On the surface of the fish body of edible fish, there is an unpleasant mucous membrane called “slimy”, and this mucous membrane, that is, “slime” is removed as a pretreatment for cooking. In general, slimming is performed manually using a cooking utensil.

As a mechanical sliming device specialized for salmon, there is a device that performs sliming by rubbing the surface of a fish body of a sand salmon conveyed by a belt conveyor with a rotating brush driven by an electric motor (for example, Patent Document 1). ).
Japanese Patent Laid-Open No. 9-1356784

  Peeling by hand using a cooking utensil is a troublesome operation, is burdensome to the operator, and reduces cooking efficiency. In particular, in the case of cocoons, the skin is so thick that it is difficult to remove “slimming”.

  In the case of a flat fish like a carp, the mechanical scissoring device that transports the fish body by a belt conveyor conveys the fish body by a belt conveyor and rubs the fish body surface with a rotating brush from above. You can take "slimming", but in the case of fish that are sticky, slender and have many "slimming", such as salmon, salmon, etc., the fish slides on the belt conveyor, and the surface of the fish is removed by the metal brush It is not rubbed effectively, and the fish body easily slides on the belt conveyor, and it is difficult to perform proper slimming.

  The problem to be solved by the present invention is to efficiently and appropriately remove the “slim” of a fish that has a rod-like shape and is long and has a lot of “smooth”, such as a salmon and a salmon.

  A fish slimming apparatus according to the present invention includes a pair of rotating brushes each having a plurality of brush hairs radially arranged such that the brush tip faces each other, and a rotation driving means for driving the rotation brush to rotate. A pair of endless chains arranged on one side of a pair of rotating brushes, each spanned between two sprockets, sandwiching the fish body to be treated from both sides by the pair of endless chains, and the fish body to be treated A carry-in side chain conveyor that feeds between the bristles of the pair of rotating brushes, and a pair of endless chains that are arranged on the other side of the pair of rotating brushes and are respectively spanned between two sprockets, A pair of endless chains sandwiching the fish body to be treated from both sides, and taking out the fish body to be treated from between the brush tips of the pair of rotating brushes And a Nkonbea.

  According to the fish slimming apparatus according to the present invention, the fish body to be processed is sandwiched from both sides by the pair of endless chains of the carry-in side chain conveyor, so that the fish body to be processed is reliably placed between the brush tips of the pair of rotating brushes. By feeding and rubbing the surface of the fish with the brush tips of a pair of rotating brushes, the “slimming” on the surface of the fish is accurately removed, and the fish body to be processed is sandwiched from both sides by a pair of endless chains on the carry-out side chain conveyor. Thus, the fish body to be processed is smoothly taken out between the brush tips of the pair of rotating brushes.

  In the fish slimming apparatus according to the present invention, preferably, the two sprockets of each endless chain of the carry-in chain conveyor and the carry-out chain conveyor are arm members that can rotate around the rotation center of the sprit on the fish body entry side. The arm members of the paired endless chains are urged by spring means to approach each other. Further, the two sprockets of each endless chain of the carry-out side chain conveyor are attached to arm members that can be rotated around the rotation center of the splot on the fish discharge side, and the arm members of the paired endless chains are attached to each other. The spring means are biased toward each other.

  According to the fish slimming apparatus according to the present invention, regardless of the size of the fish body, the fish body to be treated is appropriately sandwiched from both sides by the pair of endless chains.

  The fish slimming device according to the present invention has a pair of endless chains each spanned between two sprockets, sandwiches the fish to be processed from both sides by the pair of endless chains, and transports the fish to be processed A transport chain conveyor; and a slime removing means that is disposed in a transport section of the fish body by the fish transport chain conveyor and removes the slime of the fish transported by the fish transport chain conveyor.

  According to the fish slimming device according to the present invention, the fish body to be treated is sandwiched from both sides by a pair of endless chains of the fish transport chain conveyor, and the fish surface is caught and transported by the slime removing means. Since the removal is performed, the surface of the fish body can be accurately removed.

  In the fish slimming device according to the present invention, preferably, the slime removing means has a plurality of brush bristles radially, and a pair of rotating brushes arranged on both sides of the conveying section so that the brush bristles face each other. , And a rotation driving means for rotating the rotating brush.

  According to the fish slimming device according to the present invention, it is possible to accurately remove “slimming” on the surface of the fish body by rubbing the surface of the fish body so as to be sandwiched between the brush tips of a pair of rotating brushes.

  In the fish slimming apparatus according to the present invention, preferably, the slime removing means has a predetermined interval on each side of the fish transporting section by the fish transporting chain conveyor in the same direction as the fish transporting direction by the fish transporting chain conveyor. It is comprised by the several scraper blade arrange | positioned.

  According to the fish slimming device according to the present invention, the surface of the fish body can be accurately removed by rubbing the surface of the fish body by rubbing the surface of the fish body with a plurality of scraper blades.

  In the fish slimming device according to the present invention, preferably, the plurality of scraper blades have an arc-shaped recess at a blade tip contacting the fish body, and each recess of the plurality of scraper blades is downstream in the fish body transport direction. The arc radius is smaller and shallower toward the side.

  According to the fish slimming apparatus according to the present invention, the scraper blade having a concave portion that matches the surface shape and size (cross-sectional area) of the fish body among the plurality of scraper blades effectively functions for slimming the fish body surface. The surface of the fish body can be removed efficiently and reliably.

  The fish slimming apparatus according to the present invention is preferably a plurality of the fish slimming apparatus according to the above-described invention as seen in a virtual plane perpendicular to the transport path along the transport path of the fish body by the fish transport chain conveyor. The postures are rotationally displaced from each other around the conveyance path.

  According to the fish slimming apparatus according to the present invention, the fish body surface is slimmed over a wide area in one pass.

  In the fish slimming device according to the present invention, preferably, the two sprockets of each endless chain of the fish transport chain conveyor are attached to an arm member that can rotate around the rotation center of the splot on the fish entrance side, The arm members of the endless chain forming a pair are biased by the spring means in a direction approaching each other.

  According to the fish slimming apparatus according to the present invention, regardless of the size of the fish body, the fish body to be treated is appropriately sandwiched from both sides by the pair of endless chains.

  In the fish slimming apparatus according to the present invention, preferably, the endless chain is a roller chain in which a large number of link plates are connected by rollers, and a protrusion for capturing the fish body is provided on the link plate.

  According to the fish slimming device according to the present invention, in addition to appropriately sandwiching the fish body to be treated from both sides by the pair of endless chains, the projecting pieces bite into the fish body surface to capture the fish body, thereby The fish body is transported more reliably by the chain without causing slippage.

  The fish slimming device according to the present invention is configured to sandwich the fish body to be treated from both sides by an endless chain and remove the “slimming” of the fish body surface by a rotating brush or scraper blade while reliably transporting the fish body. The surface of the fish body is surely removed without slipping or clogging the fish body.

  A fish slimming apparatus according to Embodiment 1 of the present invention will be described with reference to FIGS.

  The fish slimming device according to the first embodiment includes a rotating brush device 10 which is a slime removing unit, a carry-in side chain conveyor 40, and a carry-out side chain conveyor 70.

  The rotating brush device 10 has a pair of left and right rotating brushes 11 and 12 as viewed in the fish conveyance direction. The rotating brushes 11 and 12 each have a larger number of brush bristles 13 and 14 than the central hub portions 11A and 12A, respectively. The vertical brush shafts 17 and 18 are rotatably supported by the brush-side bearing boxes 15 and 16. And the tips of the brush hairs 13 and 14 are arranged so as to face each other.

  The brush hairs 13 and 14 may be made of metal, plastics, natural materials, etc., and the thickness, length, and hardness of the brush hairs 13 and 14 are optimized for the type of fish to be processed. It is only necessary to select ones that are performed.

  Sprockets 19 and 20 are attached to the vertical brush shafts 17 and 18. Drive-side bearing boxes 23 and 24 are fixedly arranged on the fixedly arranged base 300, and the drive-side bearing boxes 23 and 24 support the drive shafts 21 and 22 so as to be rotatable in a vertical brush axis posture. The drive shafts 21 and 22 are drivingly connected to electric motors (rotation drive means) 25 and 26 attached to the base 300, and are rotationally driven by the electric motors 25 and 26. Sprockets 27 and 28 are attached to the drive shafts 21 and 22. An endless chain 29 is stretched between the sprocket 27 and the sprocket 19 of the vertical brush shaft 17. An endless chain 30 is stretched between the sprocket 28 and the sprocket 20 of the vertical brush shaft 18.

  Thereby, the rotating brushes 11 and 12 are rotationally driven by the individual electric motors 25 and 26. In the present embodiment, as shown in FIG. 2, one rotary brush 11 is rotationally driven in the counterclockwise direction, and the other rotary brush 12 is rotationally driven in the clockwise direction. The rotational speeds of the rotary brushes 11 and 12 may be the same. The rotary brushes 11 and 12 can be driven to rotate by a common electric motor using a power transmission mechanism.

  The brush-side bearing box 16 of the rotary brush 12 is fixedly arranged on the base 300, but the brush-side bearing box 15 of the rotary brush 11 is supported around the central axis of the drive shaft 21 of the drive-side bearing box 23 by the support member 31. As indicated by an arrow R in FIG. 2, the rotary brushes 11 and 12 are supported so as to be rotatable and biased in a direction approaching the rotary brush 12 by spring means (not shown). The interval is adjusted.

  The fish body to be slimmed, which is fed between the brush tips of the pair of rotating brushes 11 and 12, is conveyed from right to left as viewed in FIGS. 1 and 2 by the rotation of the rotating brushes 11 and 12. .

  The carry-in side chain conveyor 40 is for feeding the fish body to be processed between the brush bristles of the pair of rotating brushes 11 and 12, and one side (feeding side) of the pair of rotating brushes 11 and 12, that is, It is arranged on the right side as viewed in FIGS.

  The carry-in side chain conveyor 40 has a pair of upper and lower endless chains 45 and 46 that are spanned between two sprockets 41 and 42 and 43 and 44, respectively. As shown in FIG. 3, the endless chains 45 and 46 are roller chains in which a large number of link plates A are connected by rollers B. The link plates A are integrally formed with pointed protrusions C for catching fish. ing. The protruding direction of the protruding piece C of the endless chains 45 and 46 is a side facing each other in a horizontally opposed region E of the endless chains 45 and 46 described later.

  The sprockets 41 and 43 are driven at the same speed by driving means by an electric motor not shown in the drawing. By this sprocket drive, the upper endless chain 45 rotates in the clockwise direction as viewed in FIG. 1, and the lower endless chain 46 rotates in the counterclockwise direction as viewed in FIG. The pair of upper and lower endless chains 45 and 46 sandwich the fish body to be processed from both the upper and lower sides and feed the fish body to be processed between the brush tips of the pair of rotating brushes 11 and 12.

  Specifically, the upper sprockets 41 and 43 are rotatably supported by the upper arm member 49 by horizontal shafts 47 and 48. The upper arm member 49 is attached to a fixed frame (not shown) so as to be able to rotate substantially in the vertical direction about the axis of the shaft 47, in other words, about the rotation center of the splot 41 on the fish entry side. .

  The lower sprockets 42 and 44 are rotatably supported by the lower arm member 52 by horizontal shafts 50 and 51. The lower arm member 52 is attached to a fixed frame (not shown) so as to be pivotable in the vertical direction about the axis of the shaft 50, in other words, about the rotation center of the splot 42 on the fish entry side. Yes.

  A tension plot 54 is attached to the upper arm member 49 by a tension arm 53. A tension plot 56 is attached to the lower arm member 52 by a tension arm 55. The tensions plot 54 gives the required tension to the upper endless chain 45 and the tensions plot 56 gives the required tension to the lower endless chain 46. The tension plots 54 and 56 are horizontally opposed regions in which the endless chains 45 and 46 are opposed to each other in parallel in a horizontal direction over a predetermined section on the transport outlet side (sprockets 43 and 44 side) of the endless chains 45 and 46. Define E.

  Sector gears 57 and 58 having a series of teeth 57A and 58A that mesh with each other are attached to the shafts 47 and 50, respectively. As a result, the upper arm member 49 and the lower arm member 52 are connected to each other, and are opened and closed with the same rotation angle. The upper arm member 49 is attached with a tension coil spring 59 that urges the upper arm member 49 and the lower arm member 52 toward each other, that is, in a closed leg direction.

  A horizontal fish conveyance path including the horizontally opposed region E of the endless chains 45 and 46 is provided with a V-groove-shaped (V rod-shaped) guide member 60 as shown in FIG. 4 along the fish conveyance path. It has been. The guide member 60 receives the upper endless chain 45 on the inner side, and has a slit-shaped opening 61 in which the lower endless chain 46 runs at the bottom of the V groove.

  The carry-out side chain conveyor 70 takes out the fish body to be processed from between the brush tips of the pair of rotating brushes 11 and 12, and the other side (extraction side) of the pair of rotating brushes 11 and 12, that is, FIG. , Arranged on the left side in FIG.

  The carry-out side chain conveyor 70 has a pair of upper and lower endless chains 75, 76 that are spanned between two sprockets 71, 72, 73, 74. As shown in FIG. 3, the endless chains 75 and 76 are roller chains in which a large number of link plates A are connected by rollers B as in the case of the endless chains 45 and 46, and fish bodies are captured by the link plates A. The protruding piece C is integrally formed. The protruding direction of the projecting piece C of the endless chains 75 and 76 is a side facing each other in a horizontally opposed region F of the endless chains 75 and 76 described later.

  The sprockets 71 and 73 are driven at the same speed by driving means by an electric motor not shown in the drawing. Accordingly, as shown in FIG. 1, the upper endless chain 75 rotates in the clockwise direction, and the lower endless chain 76 rotates in the counterclockwise direction. The pair of upper and lower endless chains 75 and 76 sandwich the fish body to be processed from both the upper and lower sides and take out the fish body to be processed from between the bristles of the pair of rotating brushes 11 and 12.

  Specifically, the upper sprockets 71 and 73 are rotatably supported by the upper arm member 79 by horizontal shafts 77 and 78. The upper arm member 79 is attached to a fixed frame (not shown) so as to be able to rotate substantially vertically about the axis of the shaft 78, in other words, about the rotation center of the splot 73 on the fish discharge side. .

  The lower sprockets 72 and 74 are rotatably supported by the lower arm member 82 by horizontal shafts 80 and 81. The lower arm member 82 is attached to a fixed frame (not shown) so as to be pivotable in a substantially vertical direction around the axis of the shaft 81, in other words, around the rotation center of the fish plot 72 on the splot 72. Yes.

  A tension plot 84 is attached to the upper arm member 79 by a tension arm 83. A tension plot 86 is attached to the lower arm member 82 by a tension arm 85. The tensions plot 84 gives the required tension to the upper endless chain 75 and the tensions plot 86 gives the required tension to the lower endless chain 76. The tension plots 84 and 86 are horizontally opposed regions in which the endless chains 75 and 76 are opposed to each other in parallel with each other over a predetermined section on the transport inlet side (sprockets 73 and 74 side) of the endless chains 75 and 76. Define F.

  Sector gears 87 and 88 having a series of teeth 87A and 88A meshing with each other are attached to the shafts 78 and 81, respectively. As a result, the upper arm member 79 and the lower arm member 82 are connected to each other, and the legs are opened and closed with the same rotation angle. The upper arm member 79 is attached with a tension coil spring 99 that urges the upper arm member 79 and the lower arm member 82 toward each other, that is, in a closed leg direction.

  A horizontal fish conveyance path including the horizontally opposed region F of the endless chains 75 and 76 is provided with a V-groove (V-shaped) guide member 90 as shown in FIG. 4 along the fish conveyance path. It has been. The guide member 90 receives the upper endless chain 75 on the inner side, and has a slit-shaped opening 91 in which the lower endless chain 76 runs at the bottom of the V groove.

  The operation of the fish slimming device having the above-described configuration will be described.

  The apparatus is in an on state, that is, the rotary brush device 10, the carry-in side chain conveyor 40, and the carry-out side chain conveyor 70 are all driven, and a fish body to be removed such as salmon is placed on the carry-in guide member 60. Is placed between the endless chains 45 and 46 of the carry-in side chain conveyor 40.

  As a result, the fish body is sandwiched between the endless chains 45 and 46 from both the upper and lower sides, and the pair of the rotating brush device 10 in a state where the protruding pieces C of the endless chains 45 and 46 are caught by the fish body surface. The rotary brushes 11 and 12 are fed toward the brush tips.

  The vertical distance between the endless chains 45 and 46 on the right entrance side of the carry-in side chain conveyor 40 in FIGS. 1 and 2 depends on the setting of the distance between the axes of the splots 41 and 42 on the fish entrance side. Therefore, the fish body can be easily and smoothly inserted between the endless chains 45 and 46.

  When the fish enters the horizontally opposed region E of the endless chains 45, 46, the upper arm member 49 and the lower arm member 52 are interlocked by the action of the sector gears 57, 58 according to the thickness of the fish, etc. The leg is turned against 59 spring force. As a result, the pair of endless chains 45 and 46 reliably sandwich the fish to be processed from both sides, regardless of the thickness of the fish to be transported, without causing slipping or dropping. Are conveyed toward the brush bristles of the rotary brushes 11 and 12.

  Furthermore, since this projecting is performed in a state where each projecting piece C of the endless chains 45 and 46 has caught the fish body by biting into the fish body surface, even a fish body that is slender and has a surface that is slippery due to slimming, such as a carp. Reliable conveyance is performed. The bite of the projecting piece C on the fish body surface is suitable for fish whose skin is strong like a carp, and the bite of the projecting piece C on the fish body surface does not damage the fish body.

  In this way, the fish that is fed between the bristles of the rotating brushes 11 and 12 is reliably conveyed by the carry-in side chain conveyor 40 while the main bristles 13 and 14 of the rotating rotating brushes 11 and 12 are rotating. The surface is rubbed by the tip. Thereby, the fish surface is slimmed.

  And the fish which comes out between the brush hair tips of the rotating brushes 11 and 12 is sandwiched from the upper and lower sides by a pair of endless chains 75 and 76 of the carry-out side chain conveyor 70, and between the brush hair tips of the rotating brushes 11 and 12. It is forcibly taken out and conveyed.

  When the fish enters the horizontally opposed region E of the endless chains 75, 76, the upper arm member 79 and the lower arm member 82 are interlocked by the action of the sector gears 87, 88 according to the thickness of the fish, etc. The leg is turned against the spring force of 89. As a result, the pair of endless chains 75, 76 reliably sandwich the fish to be processed from both sides, regardless of the thickness of the fish being transported, without causing slipping or dropping. Next, it is carried out from between the brush bristles of the rotary brushes 11 and 12. In addition, this conveyance is also reliably performed in a state in which the protruding pieces C of the endless chains 75 and 76 have bitten and captured the fish body surface.

  Further, the fish transported by the carry-in side chain conveyor 40 and the carry-out side chain conveyor 70 is also prevented from falling off by being guided by the guide members 60 and 90, and the fish body is conveyed by the carry-in side chain conveyor 40 and the carry-out side chain conveyor 70. The fish will be transported reliably.

  Assume that the fish conveyance speed (chain speed) by the carry-in side chain conveyor 40 is Va, the peripheral speed of the brush bristles of the rotating brushes 11 and 12 is Vb, and the fish conveyance speed (chain speed) by the carry-out side chain conveyor 70 is Vc. Va = Vc or Va <Vc, and the peripheral velocity Vb at the tip of the bristle is set sufficiently higher than the conveying speeds Va and Vc. These speeds may be set to appropriate values according to the type and state of the fish to be transported.

  Under the reliable conveyance of the fish body, the “slimming” on the surface of the fish body is continuously scraped off by the rotating brushes 11 and 12, and the sliming is reliably and satisfactorily performed.

  In addition, it is preferable that the surface of the fish body is removed by the rotating brushes 11 and 12 in a state where the rotating brushes 11 and 12 and the fish body are wet by watering, although not shown in the drawing, It is preferable that a watering pipe and a watering nozzle are provided. Further, water is supplied between the vertical brush shafts 17 and 18 and the central hub portion brushes 11A and 12A, and water is sprayed between the rotating brushes 11 and 12 by centrifugal force as the rotating brushes 11 and 12 rotate. May be.

  Next, a second embodiment of the fish slimming apparatus according to the present invention will be described with reference to FIGS.

  The fish slimming apparatus according to the second embodiment includes a first-stage fish transport chain conveyor 100, a rotary brush device 120 that is a first-stage slime removing means, a second-stage fish transport chain conveyor 150, and a second-stage slime. And a rotating brush device 170 which is a removing means.

  The first-stage fish transport chain conveyor 100 includes a pair of upper and lower endless chains 105 and 106 that are spanned between two sprockets 101 and 102 and 103 and 104, respectively. As shown in FIG. 3, the endless chains 105 and 106 are roller chains in which a large number of link plates A are connected by rollers B as in the first embodiment, and fish bodies are captured by the link plates A. The protruding piece C is integrally formed. The protruding direction of the protruding piece C of the endless chains 105 and 106 is a side facing each other in a horizontally opposed region G of the endless chains 105 and 106 described later.

  The sprockets 101 and 102 are driven at the same speed by driving means using an electric motor (not shown). By this sprocket drive, the upper endless chain 105 rotates in the clockwise direction and the lower endless chain 106 rotates in the counterclockwise direction as seen in FIG. The pair of upper and lower endless chains 105 and 106 sandwich the fish body to be processed from both the upper and lower sides, and convey the fish body to be processed from the right side to the left side as viewed in FIGS.

  Specifically, the upper sprockets 101 and 103 are rotatably supported by the upper arm member 109 by horizontal shafts 107 and 108. The upper arm member 109 is attached to a fixed frame (not shown) so as to be able to rotate substantially vertically about the axis of the shaft 107, in other words, about the rotation center of the splot 101 on the fish entry side. .

  The lower sprockets 102 and 104 are rotatably supported by the lower arm member 112 by horizontal shafts 110 and 111. The lower arm member 112 is attached to a fixed frame (not shown) so as to be able to rotate substantially in the vertical direction about the axis of the shaft 110, in other words, about the rotation center of the splot 102 on the fish entry side. Yes.

  A tension plot 114 is attached to the upper arm member 109 by a tension arm 113. A tension plot 116 is attached to the lower arm member 112 by a tension arm 115. The tensions plot 114 gives the required tension to the upper endless chain 105, and the tensions plot 116 gives the required tension to the lower endless chain 106. These tension plots 114 and 116 define a horizontally opposed region G where the endless chains 105 and 106 are opposed to each other in parallel in a horizontal direction over a predetermined section on the transport outlet side of the endless chains 105 and 106.

  Sector gears 117 and 118 having a series of teeth 117A and 118A that mesh with each other are attached to the shafts 107 and 110, respectively. As a result, the upper arm member 109 and the lower arm member 112 are connected to each other, and the legs are opened and closed with the same rotation angle. A tension coil spring 119 is attached to the upper arm member 109 to urge the upper arm member 109 and the lower arm member 112 toward each other, that is, in a closing leg direction.

  A V-shaped carry-in guide member 195 is attached to the carry-in side of the fish body transport chain conveyor 100.

  The first-stage rotary brush device 120 has a pair of rotary brushes 121 on the left and right as viewed in the direction of fish transport by the fish transport chain conveyor 100 at the lateral position of the horizontally opposed region G of the first-stage fish transport chain conveyor 100. 122. The rotating brushes 121 and 122 each have a larger number of brush hairs 123 and 124 than the hub portions 121A and 122A, respectively. The rotating brushes 121 and 122 are supported by vertical brush shafts 127 and 128 that are rotatably supported by the brush-side bearing boxes 125 and 126, respectively. It is attached and the bristles 123 and 124 are arranged so that the tips thereof face each other.

  More specifically, the rotary brushes 121 and 122 have brush center positions at intermediate positions in the transport direction of the horizontally opposed region G of the fish transport chain conveyor 100, and both left and right sides of the fish transport path in the horizontally opposed region G. Is arranged.

  The brush hairs 123 and 124 may be made of metal, plastics, natural materials, etc., and the thickness, length, and hardness of the brush hairs 123 and 124 are optimally optimized according to the type of fish to be processed. It is only necessary to select ones that are performed.

  Sprockets 129 and 130 are attached to the vertical brush shafts 127 and 128, respectively. Drive-side bearing boxes 133 and 134 are fixedly arranged on the fixedly arranged base 300. The drive-side bearing boxes 133 and 134 support the drive shafts 131 and 132 so as to be rotatable in a vertical brush axis posture. The drive shafts 131 and 132 are drivingly connected to electric motors (rotation drive means) 135 and 136 attached to the base 300 and are rotationally driven by the electric motors 135 and 136. Sprockets 137 and 138 are attached to the drive shafts 131 and 132, respectively. An endless chain 139 is stretched between the sprocket 137 and the sprocket 129 of the vertical brush shaft 127. An endless chain 140 is stretched between the sprocket 138 and the sprocket 130 of the vertical brush shaft 128.

  Thereby, the rotating brushes 121 and 122 are rotationally driven by the individual electric motors 135 and 136. In the present embodiment, as shown in FIG. 6, one rotary brush 121 is rotationally driven in the counterclockwise direction, and the other rotary brush 122 is rotationally driven in the clockwise direction. The rotational speeds of the rotating brushes 121 and 112 may be the same. The rotating brushes 121 and 122 can also be rotationally driven by a single common electric motor using a power transmission mechanism.

  The fish to be slimmed off sent between the brush tips of the pair of rotating brushes 121 and 122 is rotated in the same direction as the conveying direction by the fish conveying chain conveyor 100 by the rotation of the rotating brushes 121 and 122, that is, FIG. It is conveyed from right to left as viewed in FIG.

  The brush-side bearing box 116 of the rotating brush 122 is fixedly disposed on the base 300, but the brush-side bearing box 115 of the rotating brush 121 is illustrated around the central axis of the driving shaft 131 by the driving-side bearing box 133 by the support member 141. 6 is rotatably supported as indicated by an arrow R, and is biased in a direction approaching the rotating brush 122 by a spring means (not shown), so that the distance between the rotating brushes 121 and 122 corresponds to the size of the fish. The structure is adjusted.

  The second-stage fish transport chain conveyor 150 and the second-stage rotating brush device 180 have substantially the same configuration as the first-stage fish transport chain conveyor 100 and the first-stage rotating brush device 120. The second stage fish transport chain conveyor 150 is arranged in a straight line with the fish transport path by the fish transport chain conveyor 100. The second-stage fish conveyance chain conveyor 150 and the second-stage rotary brush device 180 are configured to convey the first-stage fish body around the conveyance path as viewed in a virtual plane orthogonal to the fish conveyance path by the fish conveyance chain conveyor 100. The chain conveyor 100 and the first-stage rotary brush device 120 are arranged so as to be rotated and displaced by 90 degrees.

  The first-stage fish transport chain conveyor 100 and the second-stage fish transport chain conveyor 150 are for transporting fish for removal of slime on a continuous straight line, and the first-stage fish transport chain conveyor 100. When the fish is transferred to the second-stage fish transport chain conveyor 150, the transport force applied to the fish from the fish transport chain conveyors 100 and 150 is not interrupted.

  The second-stage fish transport chain conveyor 150 includes a pair of upper and lower endless chains 155 and 156 that are spanned between two sprockets 151 and 152 and 153 and 154, respectively. As shown in FIG. 3, the endless chains 155 and 156 are roller chains in which a large number of link plates A are connected by rollers B, as in the first embodiment, and fish bodies are captured by the link plates A. The protruding piece C is integrally formed. The protruding direction of the projecting piece C of the endless chain 155, 156 is a side facing each other in a horizontally opposed region H of the endless chain 155, 156 described later.

  The sprockets 151 and 152 are driven at the same speed by driving means using an electric motor (not shown). By driving the sprocket, the endless chain 155 on the right side (upper side in FIG. 6) rotates in the clockwise direction, and the endless chain 156 on the left side (lower side in FIG. 6) rotates in the counterclockwise direction. The pair of left and right endless chains 155 and 156 sandwich the fish body to be processed from both the left and right sides, and convey the fish body to be processed from the right side to the left side as viewed in FIGS.

  Specifically, the right sprockets 151 and 153 are rotatably supported by the right arm member 159 by vertical shafts 157 and 158. The right arm member 159 is attached to a fixed frame (not shown) so as to be rotatable substantially in the left-right direction around the axis of the shaft 157, in other words, about the rotation center of the splot 151 on the fish discharge side. .

  The left sprockets 152 and 154 are rotatably supported by the left arm member 162 by vertical shafts 160 and 161. The left arm member 162 is attached to a fixed frame (not shown) so as to be rotatable in the left-right direction about the axis of the shaft 160, in other words, about the rotation center of the splot 152 on the fish discharge side. .

  A tension plot 164 is attached to the right arm member 159 by a tension arm 163. A tension plot 166 is attached to the left arm member 162 by a tension arm 165. The tension plot 164 gives the required tension to the right endless chain 155 and the tension plot 166 gives the required tension to the left endless chain 156. These tension plots 164 and 166 define a horizontally opposed region H where the endless chains 155 and 156 face each other in parallel horizontally over a predetermined section on the conveyance inlet side of the endless chains 155 and 156.

  Sector gears 167 and 168 having a series of teeth 167A and 168A meshing with each other are attached to the shafts 157 and 160, respectively. Accordingly, the right arm member 159 and the left arm member 162 are connected to each other, and are opened and closed with the same rotation angle. The right arm member 159 is provided with a tension coil spring 169 that urges the right arm member 159 and the left arm member 162 toward each other, that is, in the closed leg direction.

  A V-shaped unloading guide member 196 is attached to the unloading side of the fish body transfer chain conveyor 150.

  The second-stage rotary brush device 170 has a pair of rotary brushes 171 and 172 at the side of the horizontally opposed region H of the fish transport chain conveyor 150 in the vertical direction as viewed in the fish transport direction by the fish transport chain conveyor 150. Have. The rotating brushes 171 and 172 have a larger number of brush bristles 173 and 174 than the hub portions 171A and 172A, respectively, and are attached to horizontal brush shafts 177 and 178 rotatably supported by the brush-side bearing boxes 175 and 176, respectively. It is attached and the tips of the brush bristles 173 and 174 are arranged so as to face each other.

  More specifically, the center positions of the rotary brushes 171 and 172 are in the intermediate position in the transport direction of the horizontally opposed region H of the fish transport chain conveyor 150, and rotate on both the upper and lower sides across the fish transport path of the horizontally opposed region G Brushes 171 and 172 are arranged.

  The brush hairs 173 and 174 are made of metal, plastics, natural materials, etc., and the thickness, length, and hardness of the brush hairs 123 and 124 are optimally cut according to the type of fish to be processed. The thing should just be selected.

  Sprockets 179 and 180 are attached to the horizontal brush shafts 177 and 178, respectively. Drive-side bearing boxes 183 and 184 are fixedly arranged on the fixedly arranged base 300. The drive-side bearing boxes 183 and 184 support the drive shafts 181 and 182 so as to be rotatable in a horizontal posture. The drive shafts 181 and 182 are drivingly connected to electric motors (rotation drive means) 185 and 186 attached to the base 300 and are driven to rotate by the electric motors 185 and 186. Sprockets 187 and 188 are attached to the drive shafts 181 and 182. An endless chain 189 is stretched between the sprocket 187 and the procket 179 of the horizontal brush shaft 177. An endless chain 190 is stretched between the sprocket 188 and the sprocket 180 of the horizontal brush shaft 178.

  Thereby, the rotating brushes 171 and 172 are rotationally driven by the individual electric motors 185 and 186. In this embodiment, as shown in FIG. 5, one rotary brush 171 is driven to rotate counterclockwise, and the other rotary brush 172 is driven to rotate clockwise. The rotational speeds of the rotating brushes 171 and 172 may be the same. The rotating brushes 171 and 172 can be driven to rotate by a common electric motor using a power transmission mechanism.

  The fish body to be subjected to the sliming process sent between the brush tips of the pair of rotating brushes 171 and 172 is rotated in the same direction as the conveying direction by the fish body conveying chain conveyor 150 by the rotation of the rotating brushes 171 and 172, that is, FIG. It is conveyed from right to left as viewed in FIG.

  The brush-side bearing box 176 of the rotating brush 172 is fixed to the base 300, but the brush-side bearing box 175 of the rotating brush 171 is illustrated around the central axis of the driving shaft 181 by the driving-side bearing box 183 by the support member 191. As shown by an arrow R in FIG. 5, it is rotatably supported and can be fixed at an arbitrary rotational position by a fixing means (not shown).

  The operation of the fish slimming device having the above-described configuration will be described.

  The apparatus on state, that is, the first-stage fish transport chain conveyor 100, the first-stage rotating brush device 120, the second-stage fish transport chain conveyor 150, and the second-stage rotating brush device 170 are all in the drive state, and the carry-in guide On the member 195, a fish body to be removed, such as sea bream, is placed, and the fish body is placed between the endless chains 105 and 106 of the first-stage fish transport chain conveyor 100.

  As a result, the fish body is first sandwiched between the endless chains 105 and 106 from both the upper and lower sides, and the protruding pieces C of the endless chains 105 and 106 are bitten into the fish body surface and transported in a captured state.

  The vertical distance between the endless chains 105 and 106 on the right entrance side of the fish conveyor chain conveyor 100 in FIGS. 5 and 6 is set in the horizontal facing region F by setting the inter-axis distance of the splats 101 and 101 on the fish entrance side. Since it is wider than the vertical distance, the fish body can be easily and smoothly inserted between the endless chains 105 and 106.

  When the fish enters the horizontally opposed region F of the endless chains 105, 106, the upper arm member 109 and the lower arm member 112 are interlocked by the action of the sector gears 117, 118 according to the thickness of the fish, etc. The leg is rotated against the spring force of 119. As a result, the pair of endless chains 105 and 106 can securely sandwich the fish body to be processed from both sides without causing slipping or dropping, regardless of the thickness of the fish body to be transported. Transport to.

  This conveyance is performed in a state where each projecting piece C of the endless chains 105 and 106 bites into and catches the fish body, so even if it is slender and the surface is slippery due to slimming, Done. The bite of the projecting piece C on the fish body surface is suitable for fish whose skin is strong like a carp, and the bite of the projecting piece C on the fish body surface does not damage the fish body.

  In this conveying process, the fish is fed between the brush tips of the first stage rotating brushes 121 and 122, in other words, passing between the brush tips of the rotating brushes 121 and 122, and the rotating brush 121 and rotating. The brush bristles 123 and 134 have their surfaces rubbed mainly by their tips. As a result, the left and right portions of the fish surface are mainly trimmed.

  Assuming that the fish conveyance speed (chain speed) by the fish conveyor chain conveyor 100 is Va and the peripheral speed of the brush bristle tips of the rotating brushes 121 and 122 is Vb, the peripheral speed Vb of the brush bristle tip is sufficiently higher than the transport speed Va. Is set.

  Under the conveyance of the fish body, the “slimming” mainly on the left and right portions of the fish body surface is removed satisfactorily by scraping off with the rotating brushes 121 and 122.

  In addition, it is preferable that the surface of the fish body is removed by the rotating brushes 121 and 122 in a state where the rotating brushes 121 and 122 and the fish body are wet by watering, and although not shown in the drawing, It is preferable that a watering pipe and a watering nozzle are provided. Also in this embodiment, water is supplied between the vertical brush shafts 127 and 128 and the central hub portion brushes 121A and 122A, and the rotation brushes 121 and 122 are rotated between the rotating brushes 121 and 122 by centrifugal force. You may make it water.

  The fish that is sandwiched and transported from both the upper and lower ends by the endless chains 105 and 106 of the first-stage fish transport chain conveyor 100 is then sandwiched from both the left and right by the endless chains 155 and 156 of the second-stage fish transport chain conveyor 150. Then, the protruding pieces C of the endless chains 155 and 156 bite into the fish body surface and are transported in a captured state.

  When the fish enters the horizontally opposed region H of the second-stage endless chain 155, 156, the right arm member 159 and the left arm member 162 are interlocked by the action of the sector gears 167, 168 according to the thickness of the fish. The leg is rotated against the spring force of the tension coil spring 169. As a result, the pair of endless chains 155 and 156 can also securely sandwich the fish to be processed from both sides without causing slipping or dropping, regardless of the thickness of the fish to be transported. Transport to.

  This transport is also carried out in a state where the protruding pieces C of the endless chains 155 and 156 have bitten into the fish surface and captured the fish body, so even if it is slender and the surface is slippery due to slimming, To be done. The biting of the projecting piece C into the fish body surface is suitable for fish with a strong skin like a salmon, and the biting of the projecting piece C into the fish body surface does not damage the fish body.

  In this conveying process, the fish is fed between the brush tips of the rotating brushes 171 and 172. In other words, the fish passes through the brush tips of the rotating brushes 171 and 172, and the rotating brushes 171 and 172 are rotating. The surface of the bristles 173 and 174 is rubbed mainly by the tips. As a result, the upper and lower portions of the fish body surface are mainly removed.

    Assuming that the fish conveyance speed (chain speed) by the fish conveyor chain conveyor 150 is Va and the peripheral speed of the brush bristle tips of the rotating brushes 171 and 172 is Vb, the peripheral speed Vb of the brush bristle tip is sufficiently higher than the transport speed Va. Is set.

  Under the transportation of the fish body, the “slimming” mainly on the upper and lower portions of the fish body surface is removed well by continuous rubbing by the rotating brushes 171 and 172.

  It is preferable that the surface of the fish body is removed by the rotating brushes 171 and 172 in a state where the rotating brushes 171 and 172 and the fish body are wet by sprinkling water. Although not shown in the drawing, the surface of the fish body is scattered. It is preferable that a water pipe and a watering nozzle are provided.

  As described above, in this embodiment, the fish surface is slimmed efficiently and reliably over the entire top, bottom, left, and right (wide area) in a single pass. In addition, the conveyance direction of the fish body to be processed may be a direction of conveyance from the left side to the right side as viewed in FIGS.

  Next, Embodiment 3 of the fish slimming apparatus according to the present invention will be described with reference to FIGS. 7 and 8, parts corresponding to those in FIGS. 5 and 6 are denoted by the same reference numerals as those in FIGS. 5 and 6, and description thereof is omitted.

  The fish slimming apparatus according to the third embodiment includes a first-stage fish transport chain conveyor 100, scraper means 200 that is a first-stage slime removal means, a second-stage fish transport chain conveyor 150, and a second-stage slime removal. Scraper means 230 as means. The first-stage fish transport chain conveyor 100 and the second-stage fish transport chain conveyor 150 may be the same as those in the second embodiment described above. Also in this embodiment, the first-stage fish transport chain conveyor 100 and the second-stage fish transport chain conveyor 150 pass the fish from the first-stage fish transport chain conveyor 100 to the second-stage fish transport chain conveyor 150. The transport force applied to the fish body from the fish transport chain conveyors 100 and 150 is arranged so as not to be interrupted.

  The first-stage scraper means 200 is an alternative to the first-stage rotary brush device 120 of Embodiment 2 as a slime removing means, and includes a pair of scraper blade assemblies 210 and 220. The scraper blade assemblies 210 and 220 are opposed (fixed) to the left and right sides of the fish conveyance path (fish conveyance section) in the horizontally opposed region G by the endless chains 105 and 106.

  As shown in FIG. 9, the scraper blade assemblies 210 and 220 are fixed at one end to the substrates 211 and 221 and arranged at a predetermined interval in the same direction as the fish conveyance direction by the fish conveyance chain conveyor 100. The plurality of scraper blades 212 and 222 are configured. The scraper blades 212 and 222 are bent in a dogleg shape, and have scraper pieces 213 and 223 that are bent in the direction opposite to the fish conveying direction on the tip side. Arc-shaped concave portions 214 and 224 are cut out at the tips of the scraper pieces 213 and 223, that is, at the tips of the blades. The concave portions 214 and 224 of the scraper blades 212 and 222 are formed concentrically with each other, and the arc radius is smaller and shallower toward the downstream side in the fish conveyance direction.

  The second-stage scraper means 230 is an alternative to the second-stage rotary brush device 170 of the second embodiment as a slime removing means, and a pair of scraper blade assemblies 240, 250 are formed by endless chains 155, 156. Oppositely arranged (fixed) on both upper and lower sides of a fish conveyance path (fish conveyance section) in the horizontally opposed region H.

  As shown in FIG. 9, the scraper blade assemblies 240, 250 are fixed at one end to the substrates 241, 251, and arranged at a predetermined interval in the same direction as the fish conveyance direction by the fish conveyance chain conveyor 150. In addition, a plurality of scraper blades 242 and 252 are included. The scraper blades 242 and 252 are bent in a dogleg shape, and have scraper pieces 243 and 253 bent at the tip side in a direction opposite to the fish conveying direction. Arc-shaped recesses 244 and 254 are cut out at the tips of the scraper pieces 243 and 253, that is, at the tips of the blades. The concave portions 244 and 244 of the scraper blades 242 and 252 are formed concentrically with each other, and the arc radius is smaller and shallower toward the downstream side in the fish conveyance direction.

  The operation of the fish slimming device having the above-described configuration will be described.

  The apparatus is in an on-state, that is, the first-stage fish transport chain conveyor 100 and the second-stage fish transport chain conveyor 150 are in a driving state, and the fish body to be slimmed, such as sea bream, is placed on the carry-in guide member 195. It is put between the endless chains 105 and 106 of the fish body transport chain conveyor 100.

  As a result, the fish body is first sandwiched by the endless chains 105 and 106 from both the upper and lower sides, and the protruding pieces C of the endless chains 105 and 106 bite into the fish body surface and are transported in a captured state.

  In the process of transporting the fish body into the horizontally opposed region F of the endless chains 105, 106, the fish body enters between the left and right scraper blade assemblies 210, 220 and is transported by the endless chains 105, 106. The surface of the fish body is rubbed by the blade leading edges of the scraper blades 212 and 222, and the left and right portions of the surface of the fish body are removed so as to peel off.

  The slime removal by the scraper action is performed by at least one scraper blade 212, 222 having recesses 244, 244 suitable for the surface shape and thickness of the fish body among the plurality of scraper blades 212, 222. This is done effectively. As a result, even if the surface shape and thickness of the fish body are slightly different, and even if the surface shape and thickness of the fish body are changed in the longitudinal direction of the fish body, the right and left portions of the fish body are efficiently and accurately removed. .

  Next, the fish is sandwiched from the left and right sides by the endless chains 155 and 156 of the second-stage fish transport chain conveyor 150, and the protruding pieces C of the endless chains 155 and 156 are caught and caught on the fish body surface. It is conveyed by.

  In the process of transporting the fish into the horizontally opposed region H of the endless chains 155, 156, the fish enters between the upper and lower scraper blade assemblies 240, 250 and is transported by the endless chains 155, 156. The surface of the fish body is rubbed by the blade leading edges of the scraper blades 242 and 252 so that the “slimming” of the upper and lower parts of the surface of the fish body is removed.

  This scraping by the scraper action is performed by at least one scraper blades 242 and 252 having concave portions 244 and 254 matching the surface shape and thickness of the fish body among the plurality of scraper blades 242 and 252. This is done effectively. As a result, even if the surface shape and thickness of the fish body are slightly different, and even if the surface shape and thickness of the fish body are changed in the longitudinal direction of the fish body, the upper and lower parts of the fish body are efficiently and accurately removed. .

  It is preferable that the surface of the fish body is removed by the scraper means 200 and 230 in a state where the fish body and the like are wet by watering, and although not shown in the drawing, It is preferable that a watering pipe and a watering nozzle are provided.

  As described above, also in this embodiment, the fish surface is slimmed efficiently and reliably over the entire top, bottom, left, and right (wide area) in a single pass.

  In the above-described embodiment, the slime removing means using the rotating brush and the scraper blade is arranged in two stages in the front and rear. However, depending on the required degree of slime removal, FIG. 10, FIG. 11, and FIG. Thus, it may be a single stage or a plurality of stages of two or more stages.

It is a front view which shows Embodiment 1 of the fish slimming apparatus by this invention. 1 is a plan view showing Embodiment 1 of a fish slimming apparatus according to the present invention. It is a perspective view which shows the detail of the endless chain used for embodiment of the fish sliming apparatus by this invention. It is sectional drawing of the guide member used for embodiment of the fish slimming apparatus by this invention. It is a front view which shows Embodiment 2 of the fish slimming apparatus by this invention. It is a top view which shows Embodiment 2 of the fish slimming apparatus by this invention. It is a front view which shows Embodiment 3 of the fish slimming apparatus by this invention. It is a top view which shows Embodiment 3 of the fish slimming apparatus by this invention. It is a perspective view of the scraper used for the fish slimming apparatus of Embodiment 3. It is a front view which shows other embodiment of the fish slimming apparatus by this invention. It is a side view which shows other embodiment of the fish slimming apparatus by this invention. It is a front view which shows other embodiment of the fish slimming apparatus by this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Rotating brush apparatus 11, 12 Rotating brush 13, 14 Brush bristle 15, 16 Brush side bearing box 23, 24 Drive side bearing box 25, 26 Electric motor 40 Carry-in side chain conveyor 41, 42, 43, 44 Sprocket 45, 46 Endless Chain 49 Upper arm member 52 Lower arm member 57, 58 Sector gear 59 Tension coil spring 60 Guide member 70 Unloading side chain conveyor 75, 76 Endless chain 79 Upper arm member 82 Lower arm member 87, 88 Sector gear 89 Tension coil spring 90 Guide Member 100 Fish transport chain conveyor 101, 102, 103, 104 Sprocket 105, 106 Endless chain 109 Upper arm member 112 Lower arm member 117, 118 Sector gear 119 Tension coil spring 120 Rotating brush equipment 121, 122 Rotating brush 123, 124 Brush bristles 115, 116 Brush side bearing box 135, 134 Drive side bearing box 135, 136 Electric motor 150 Fish transport chain conveyor 151, 152, 153, 154 Sprocket 155, 156 Endless chain 159 Right arm Member 162 Left arm member 167, 168 Sector gear 169 Tension coil spring 170 Rotating brush device 171, 172 Rotating brush 173, 174 Brush bristles 175, 176 Brush side bearing box 185, 184 Drive side bearing box 185, 186 Electric motor 200 Scraper means 210 , 220 Scraper blade assembly 212, 222, Scraper blade 214, 224 Recessed portion 230 Scraper means 240, 250 Scraper blade assembly 242, 252 Scraper blade 244, 254 recess

Claims (10)

A pair of rotating brushes each having a large number of brush hairs radially arranged such that the brush tips face each other;
Rotation driving means for rotating the rotating brush;
A pair of endless chains arranged on one side of the pair of rotating brushes and spanned between two sprockets, sandwiching the fish body to be treated from both sides by the pair of endless chains, A carry-in chain conveyor that feeds the fish body between the brush tips of the pair of rotating brushes;
It has a pair of endless chains arranged on the other side of the pair of rotating brushes and spanned between two sprockets, sandwiching the fish body to be treated from both sides by the pair of endless chains, A carry-out side chain conveyor for taking out the fish from between the brush tips of the pair of rotating brushes;
Fish slimming device with.   Two sprockets of each endless chain of the carry-in side chain conveyor and the carry-out side chain conveyor are attached to arm members that can rotate around the rotation center of the sprit on the fish entrance side, The fish slimming device according to claim 1, wherein the arm members are biased in a direction in which the arm members approach each other by a spring means.   The two sprockets of each endless chain of the carry-out side chain conveyor are attached to arm members that can be rotated around the rotation center of the splot on the fish discharge side, and the arm members of the paired endless chains are spring means. The fish slimming device according to claim 1, wherein the fish slimming device is biased in a direction approaching each other. A fish body transport chain conveyor that has a pair of endless chains each spanned between two sprockets, sandwiches the fish body to be treated by the pair of endless chains from both sides, and transports the fish body to be treated;
A slime removing means disposed in a section of transporting the fish by the fish transport chain conveyor and removing the slime of the fish being transported by the fish transport chain conveyor;
Fish slimming device with.   The slime removing means has a plurality of brush bristles radially, a pair of rotating brushes arranged on both sides of the conveying section so that the brush bristles face each other, and a rotation driving means for rotating the rotating brush. The fish slimming apparatus according to claim 4, which is configured by:   The slime removing means is constituted by a plurality of scraper blades arranged at predetermined intervals in the same direction as the fish transport direction by the fish transport chain conveyor on both sides of the fish transport section by the fish transport chain conveyor. The fish slimming device according to claim 4.   7. The plurality of scraper blades have an arc-shaped recess at a blade tip that comes into contact with a fish body, and each recess of the plurality of scraper blades has a smaller arc radius and shallower toward the downstream side in the fish transport direction. Fish slimming device as described in 1.   A plurality of the fish slimming devices according to any one of claims 4 to 6 along the fish conveyance path by the fish conveyance chain conveyor, when viewed in a virtual plane perpendicular to the conveyance path, the conveyance path A fish slimming device having a posture that is rotationally displaced from each other.   The two sprockets of each endless chain of the fish transport chain conveyor are attached to arm members that can rotate around the rotation center of the splot on the fish entering side, and the arm members of the paired endless chains are spring means. The fish slimming device according to any one of claims 4 to 8, wherein the fish slimming device is biased in a direction approaching each other.   The fish endurance according to any one of claims 1 to 9, wherein the endless chain is a roller chain in which a large number of link plates are connected by rollers, and a projecting piece for capturing the fish is provided on the link plate. Take-off device.

Images