JP2018093733A - Shellfish hanging pin removal apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a removal apparatus in which all shellfish hanging pins can be removed from an aquaculture rope simply and reliably.SOLUTION: An apparatus has a first rotating body 44a and a second rotating body 44b arranged in close proximity to the first rotating body 44a. The first rotating body 44a and the second rotating body 44b have multiple protrusions shaped to be bitten into a shellfish hanging pin P on outer surfaces, respectively, and are rotated around a central shaft. The second rotating body 44b is arranged so that the central shaft may become almost parallel to the central shaft of the first rotating body 44a around the central shaft in a reverse direction of the first rotating body 44a. Each of the multiple protrusions is arranged so as to be arranged nonlinearly to the length direction of the central shaft of the first and second rotating bodies. A rope R with the shellfish hanging pin inserted therein is inserted between the first protrusion and the second protrusion, and then is drawn out of the aquaculture rope R with the rotation of the two rotating bodies 44a, 44b.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a shell suspending pin removing device for removing a shell suspending pin inserted into a rope from the rope.

  In scallop ear suspension culture, as shown in FIG. 1 (b), a large number of scallops are suspended along a length direction on a culture rope having a length of 10 to 15 m. In order to suspend scallops on an aquaculture rope, for example, a pin for suspending a shell (generally called an age pin) having a shape as shown in FIG. 1A is used (for example, Patent Document 1). The shell hanging pin usually has a wedge-shaped locking portion that rises obliquely toward the center in the length direction of the pin at both ends and near the center. The locking portions at both ends prevent the shell from coming off the pin, and the central locking portions prevent the pins inserted into the rope from being biased.

  One or two scallops with holes in the ear pieces are hung on both sides of the pins protruding from the culture rope through the culture rope at regular intervals. The shell hanging pin is usually made of resin. In general, about 100 shell suspending pins are inserted into one aquaculture rope at intervals of about 10 to 12 cm. When the scallops are shipped, the scallops can be removed from the shell suspending pins by pulling the shell suspending pins while pulling the aquaculture rope with a special machine.

  Shell-hanging pins remain on the culture rope from which the scallops have been removed, and it is necessary to remove the shell-suspending pins from the culture rope in order to reuse the culture rope. The operation of removing the pin for suspending the shell from the culture rope was once performed manually, but there is a problem that the operation is complicated and the workability is poor. In order to solve these problems, as shown in Patent Documents 2 to 4, for example, an apparatus for automatically removing a pin for hanging shells from a culture rope has been proposed.

  All of the devices proposed in Patent Documents 2 to 4 are configured to pull the shell-hanging pin by sandwiching the shell-suspending pin from one side or both sides by a dedicated method while pulling the culture rope at a constant speed. Is to be removed.

  The device proposed in Patent Document 2 is configured to sandwich a protruding portion of a shell hanging pin protruding from a culture rope between an outer peripheral portion of a pulley and a belt. The sandwiched pin for suspending the shell is pulled out from the culture rope by the force with which the culture rope is pulled by the tensile conveyance mechanism.

  The device proposed in Patent Document 3 is a device in which a drum-shaped rotor having a slit into which a protruding portion of a pin for hanging a shell can enter is rotatably provided in a cover. The shell suspending pin with the protruding portion entering the slit is removed from the culture rope by being drawn between the rotor and the cover by the rotation of the rotor.

  The device proposed in Patent Document 4 is a pin for shell suspension from an aquaculture rope by pulling a pin for shell suspension by rotation of a gear or roller between a helical gear, a rubber roller, a resin roller or the like and a rope passage side wall. Is to be removed.

JP-A-2015-198636 JP 2006-115806 A JP 2009-159872 A JP 2012-005357 A

  In the prior art including the techniques shown in Patent Documents 2 to 4 described above, a pin for shell suspension protruding from the culture rope, a gear disposed at any position around the transportation path of the culture rope, a rubber roller, By using a pull-out part such as a rubber belt or a pulley, the pull-out part is pulled out from the culture rope.

  However, these conventional techniques have a problem that only 80 to 90% of the pins can be removed, and the remaining pins are always generated. In particular, as shown in FIG. 2, when the shell suspending pin is torn off with a strong force when removing the scallop shell, the tip extends and narrows (P1 in FIG. 2), or it is cut and shortened. If it is bent (P2 in FIG. 2), or is bent near the culture rope due to the weight of the scallop (P3 in FIG. 2), it is not in the original attached state (P4 in FIG. 2), etc. In many cases, the pin for shell suspension passes without touching the pull-out portion, or is not removed from the aquaculture rope due to insufficient force even when pinned in the pull-out portion.

  A large fisherman may use 5 million shell hanging pins annually, and a mid-sized fisherman may also use 2 million shell hanging pins. Even if only 10% of the pins remain on the culture rope when the shell-suspending pins are removed by the conventional technique, the number is 200,000 to 500,000. The remaining shell suspending pins must be removed manually using pliers or the like, and the processing is a heavy burden on the fishermen.

  In addition, when a culture rope is wet or dirty, or when a plurality of culture ropes are connected, it is difficult to use such a culture rope as it is in the conventional technology. In the prior art, dirty ropes require prior cleaning treatment and wet ropes require some degree of drying treatment. Furthermore, in the prior art, a process of setting a culture rope in the apparatus is necessary, and the presence of the process is one factor that reduces the workability of removing the pin for hanging the shell.

  This invention makes it a subject to provide the removal apparatus which can remove all the pin for shellfishes easily and reliably from a culture rope.

  The above-mentioned problem is formed so as to bite into the shell hanging pin, and the two rotating bodies having protrusions arranged in a non-linear manner in the rotation axis direction are arranged as close as possible, and the shell hanging pin is inserted This can be solved by running the culture rope close to these two rotating bodies.

  The present invention provides a shell suspending pin removing device for removing a shell suspending pin inserted into a rope from the rope. This device has a first rotating body and a second rotating body arranged in proximity to the first rotating body. The first rotating body has a plurality of first protrusions shaped to bite into the shell hanging pins on the outer surface, and rotates around the central axis. The second rotating body has a plurality of second protrusions shaped to bite into the shell hanging pins on the outer surface, rotates around the central axis in a direction opposite to the first rotating body, and the central axis is It arrange | positions so that it may become substantially parallel with the central axis of a 1st rotary body. Either one or both of the plurality of first protrusions and the plurality of second protrusions are arranged so as to be aligned non-linearly with respect to the length direction of the central axis of the first and second rotating bodies. . The rope into which the pin for suspending the shell is inserted is configured to run close to the first and second rotating bodies and substantially parallel to the central axes of the first and second rotating bodies. The shell suspension pin inserted in the rope is inserted between the first protrusion and the second protrusion, and is pulled out from the culture rope as the two rotating bodies rotate.

  In one embodiment, the plurality of first protrusions are preferably arranged irregularly with respect to the central axis direction of the first rotating body, and the plurality of second protrusions are the second rotating body. It is preferable to arrange irregularly with respect to the central axis direction. The first rotating body and the second rotating body are close to each other so that the distance when the first protrusion and the second protrusion are closest to each other is narrower than the thickness of the thinnest portion of the shell hanging pin. Are preferably arranged. Each of the plurality of first and second protrusions is preferably provided with a tip portion formed at an acute angle so as to bite into the shell suspension pin at a front portion in the rotational direction.

  In one embodiment, each of the first rotating bodies includes a first disk main body and a plurality of first protrusions arranged at intervals in the circumferential direction on the outer peripheral surface of the first disk main body. It can be set as the 1st disk laminated body comprised by laminating | stacking the several 1st disk to have in the length direction of the rotating shaft. Similarly, the second rotating body includes a plurality of second protrusions each having a second disk main body and a plurality of second protrusions arranged on the outer peripheral surface of the second disk main body at intervals in the circumferential direction. It can be set as the 2nd disk laminated body comprised by the 2nd disk being laminated | stacked on the length direction of the rotating shaft.

  In one embodiment, the apparatus further includes a protection unit for protecting a rope traveling in the vicinity of the first and second rotating bodies from coming into contact with the first and second rotating bodies. This is true. The protection part has a gap formed so as to extend substantially parallel to the central axes of the first and second rotating bodies, and the gap is between the first rotating body and the second rotating body. It is preferable to arrange | position in the position corresponding to.

  It is preferable that the protection part has two plate-like bodies each having an edge extending in parallel with the central axis of the first and second rotating bodies. The edge portions of the two plate-like bodies are arranged adjacent to each other via a gap and close to the first and second rotating bodies, and each of the plate-like bodies has a cross-sectional shape in a direction crossing the edge portion. It preferably has a generally square shape.

  In one embodiment, it is preferable that the device further includes a pressing member for pressing the rope against the gap of the protection unit. The pressing member is preferably a rod-shaped member that extends in a direction crossing the gap of the protective portion and is movable in a direction away from the gap.

  According to the apparatus according to the present invention, even a pin for suspending a shell that cannot be removed by the prior art and remains on the culture rope can be surely removed from the culture rope. Thus, the process of removing by the step is unnecessary, and the work load can be reduced and the removal work time can be shortened. In addition, since this device has a simple structure, it does not require a pre-cleaning process that was necessary with a device having a complicated structure in the past, and even a wet culture rope or a culture rope with foreign matter attached thereto can be used. Can be used.

(A) shows the shape of a general pin for suspending shellfish, and (b) shows an example of the usage state of the pin for suspending shellfish. It is explanatory drawing of the example of the shape of the pin for shell suspension after a scallop is removed. BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram of the pin removal apparatus for shell suspension by one Embodiment of this invention, (a) is a front view, (b) is a top view. BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic schematic diagram of the pin removal apparatus for shell suspension by one Embodiment of this invention, (a) is a left view, (b) is a right view. The pin removal unit for ear suspension used for the pin removal apparatus for shell suspension by one Embodiment of this invention is shown, (a) is a front view, (b) is a left view, (c) is a right view, (D) is an example of a disk. The protection part which protects a rope from a rotary body in the pin removal apparatus for shell suspension by one Embodiment of this invention is shown, (a) is a typical perspective view, (b) is a protection part, a disk laminated body, and a culture rope. It is explanatory drawing of the positional relationship between. The rope press part which presses a culture rope in the pin removal apparatus for shell suspension by one Embodiment of this invention is shown, (a) is a front view, (b) is a top view. It is explanatory drawing which shows an example of the use condition of the pin removal apparatus for shell suspension by one Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[Device configuration]
FIGS. 3 and 4 are schematic views of a shell suspending pin removing apparatus 1 according to an embodiment, FIG. 3 (a) is a front view, FIG. 3 (b) is a plan view, and FIG. 4 (a). Is a left side view, and FIG. 4B is a right side view. As shown in FIGS. 1 and 2, the shell hanging pin removing apparatus 1 is used for removing the shell hanging pin P inserted into the culture rope R used for the cultivation of the scallop S from the culture rope R. Device. The shell hanging pin P is often in the state shown in P1 to P4 of FIG. 2 depending on the force when the scallop S is removed from the shell hanging pin P and the weight of the scallop S. In this state, it is difficult to remove all of the shell hanging pins P from the culture rope R with the conventional apparatus. Even if it is the pin P1-P4 for shell suspension of such a state, the pin removal apparatus 1 for shell suspension by this invention can remove from the culture rope P reliably.

  As shown in FIG. 3 and FIG. 4, the shell suspending pin removing device 1 includes a motor 3 and a pin removing unit 4 that is operated by the rotational force of the motor 3 inside the housing 2. The housing 2 includes an upper housing 21 (shown by a dotted line) that covers the whole, and a lower housing 22 that supports the motor 3 and the pin removal unit 4. A pin discharge port 23 for discharging the shell hanging pin P removed from the culture rope R by the pin removing unit 4 is provided at a part below the housing 2.

  A large-diameter gear 32 is attached to the rotation shaft 31 of the motor 3, and the pin removal unit 4 can be rotated when the gear 32 meshes with a gear 48 provided in the pin removal unit 4. The rotating shaft 31 and the pin removal unit 4 of the motor 3 are supported by the support portion 24.

  The pin removal unit 4 used for the shell hanging pin removal apparatus 1 will be described with reference to FIG. 5A is a front view of the pin removing unit 4, FIG. 5B is a left side view, and FIG. 5C is a right side view. FIG. 5D shows a disk constituting the disk stack 44 of the pin removal unit 4.

  The pin removal unit 4 is composed of two subunits 41a and 41b. The subunit 41a has a disk stack (first rotating body) 44a attached to one end side of the rotating shaft 42a (on the left side of the center of the rotating shaft 42a in FIG. 5A). A gear 48a is attached to the end (the right end of the rotating shaft 42a in FIG. 5A). Similarly, the subunit 41b has a disk stack (second rotating body) 44b attached to one end side of the rotating shaft 42b and a gear 48b attached to the other end of the rotating shaft 42b. The rotating shaft 42a and the rotating shaft 42b are arranged substantially in parallel.

  The pin removal unit 4 rotates when the gear 32 attached to the rotating shaft 31 of the motor 3 meshes with the gear 48a or 48b. In this embodiment, the gear 32 meshes with the gear 48b of the pin removal unit 4 as shown in FIG. 4B, and the gears 48a and 48b are shown in FIGS. 4B and 5B. Therefore, the power of the motor 3 is transmitted to the rotary shaft 31, the gear 32, the gear 48b, and the gear 48a to rotate the rotary shafts 42a and 42b of the pin removing unit 4. As shown in FIG. 5, the rotation shaft 42a and the rotation shaft 42b rotate in directions opposite to each other. In one embodiment, for example, the rotation speed of the rotation shafts 42a and 42b can be about 100 to 200 rotations per minute.

  The disk stack 44a is configured by stacking a plurality of disks (first disks) 44a1 in the length direction of the rotation shaft 42a. As shown in FIG. 5 (d), each of the plurality of disks 44a1 includes a plurality of disk bodies (first disk body) 442a and a plurality of disks 44a1 arranged in the circumferential direction at intervals on the outer peripheral surface 443a of the disk body 442a. Projections (first projections) 444a. Each of the plurality of protrusions 444a is not a simple chevron like a normal gear tooth, but is formed in a saw blade shape, and has a sharp tip 448a at the front portion in the rotation direction A. The protrusion 444a is not limited to the shape shown in FIG. 5D, and may be formed in a shape that can easily bite into the resin-made shell-hanging pin P.

  The disk stack 44b is configured in the same manner as the disk stack 44a. That is, the disk stack 44b is configured by stacking a plurality of disks (second disks) 44b1 in the length direction of the rotation shaft 42b. Each of the plurality of disks 44b1 includes a disk main body (second disk main body) 442b and a plurality of protrusions (second protrusions) 444b arranged in the circumferential direction at intervals on the outer peripheral surface 443b of the disk main body 442b. Have. Each of the plurality of protrusions 444b has an acute end portion 448b at the front portion in the rotation direction A. The protrusion 444b only needs to be formed in a shape that easily bites into the resin shell-hanging pin P.

  The disk stack 44a and the disk stack 44b are preferably arranged as close as possible. That is, the disc laminate 44a and the disc laminate 44b are separated from the culture rope R when the protrusions 444a and 444b (more specifically, the respective tip portions 448a and 448b) are closest to each other. It is preferable that the thickness is adjusted so as to be narrower than the thinnest part of the shell-pushing pin P to be removed, and the protrusions 444a and 444b are arranged so as to face each other at a limit interval where they do not contact each other. preferable.

  In the disk stack 44a, the protrusions 444a of the respective disks 44a1 are arranged so as to be arranged non-linearly with respect to the stacking direction of the disk stack 44a (that is, the length direction of the rotating shaft 42a). Here, the arrangement in which the protrusions 444a are arranged non-linearly means that the adjacent protrusions 444a are arranged so as to be shifted by a certain angle in the circumferential direction of the disks 44a1 between the plurality of disks 44a1 (that is, This includes the case where the protrusions 444a are irregularly arranged (that is, neither linear nor regular). Also in the disk stack 44b, similar to the disk stack 44a, the protrusions 444b of the respective disks 44b1 are arranged non-linearly with respect to the stacking direction of the disk stack 44b (that is, the length direction of the rotating shaft 42b). Are arranged as follows.

  In this embodiment, both of the disk stacks 44a and 44b are arranged so that the protrusions 444a are arranged in a non-linear manner, but the present invention is not limited to this, and in another embodiment, It may be arranged such that one of the protrusions of the bodies 44a and 44b is arranged in a non-linear manner and the other protrusion is arranged in a straight line. In this way, it is possible to obtain a disk stack having a complicated surface shape in which protrusions that bite into the shell-suspending pins are formed.

  Preferably, the rotation shafts 42a and 42b are formed so that the portions where the disk stacks 44a and 44b are disposed are thinner than the other portions. By forming in this way, the disk stacks 44a and 44b in which a plurality of disks 44a1 and 44b1 are stacked are placed between the end surfaces of the thickened portions of the rotating shafts 42a and 42b and the disk stack stops 46a and 46b. It can be pinched and fixed securely.

  In the present embodiment, the disk stacks 44a and 44b are arranged so that the plurality of disks 44a1 and 44b1 are in contact with each other. However, the present invention is not limited to this, and a spacer is provided between the adjacent disks 44a1 and 44b1. A plurality of disks 44a1 and 44b1 may be stacked.

  In one embodiment, each of the disks 44a1 and 44b1 of the disk stacks 44a and 44b can be formed by cutting into the shape of FIG. 5D using a laser cutting machine, for example. The thickness of each of the disks 44a1 and 44b1 is preferably about 2 mm to 3 mm in thickness considering the goodness and strength of biting into the shell hanging pin P, but is not limited thereto. A thicker disk or a thinner disk can be used, and a plurality of disks having different thicknesses can also be used. In one embodiment, the outer diameter D of the disks 44a1 and 44b1 can be, for example, about 20 mm, but it is preferable to make it as small as possible within a manufacturable range. The circumferential length l of the outer end portions of the protrusions 444a and 444b can be, for example, about 2 mm to 3 mm, but is not limited thereto. In one embodiment, although not limited, the disk stacks 44a and 44b are preferably formed by stacking, for example, about 20 to 30 disks 44a1 and 44b1.

  In the pin suspension device 1 for suspending shells of the present embodiment, the pin removal unit 4 has a configuration in which the disk stacks 44a and 44b are attached to the rotating shafts 42a and 42b, but is not limited thereto. In another embodiment, the pin removing unit 4 has a shape in which rotating bodies 44a ′ and 44b ′ each having an outer surface are attached to the rotating shafts 42a and 42b, and the shell hanging pin P is bitten on the outer surface. It is also possible to have a structure having a plurality of protrusions.

  In this embodiment, the rotating body (first rotating body) 44a ′ is an outer surface 443a ′ (corresponding to the plurality of disk bodies 442a of the disk stack 44a) of the rotating body main body 442a ′ (the plurality of disks 442a). A plurality of protrusions (first protrusions) 444a ′ (corresponding to the plurality of protrusions 444a) may be provided on the outer surface 443a. The plurality of protrusions 444a 'are arranged on the outer surface 443a' so as to be aligned non-linearly with respect to the length direction of the rotation shaft 42a. The shape of the rotator main body 442a 'is preferably a cylindrical outer shape, but is not limited thereto, and may have, for example, a polygonal outer shape. In this case, it is preferable that the plurality of protrusions 444a 'having different heights are arranged on the outer surface 443a' so that the outer shape formed by the plurality of protrusions 444a 'is substantially cylindrical.

  The rotating body (second rotating body) 44b ′ is also provided with a plurality of protrusions (second protrusions) 444b ′ on the outer surface 443b ′ of the rotating body main body 442b ′ in the same manner as the rotating body 44a ′. It can be. The plurality of protrusions 444b 'are arranged on the outer surface 443b' so as to be aligned non-linearly with respect to the length direction of the rotation shaft 42b. The shape of the rotator main body 442b 'is preferably a cylindrical outer shape, but is not limited thereto, and may have, for example, a polygonal outer shape.

  As shown in FIGS. 3 and 4, the shell suspending pin removing device 1 is preferably provided with a protection unit 5 on top of the disk stacks 44 a and 44 b of the pin removing unit 4. The protector 5 keeps the culture rope R and the disk stacks 44a and 44b as close as possible, and when the shell hanging pin P is removed from the culture rope R, the culture rope R is moved to the disk stacks 44a and 44b. It has a function to protect against contact. FIG. 6A shows the protection unit 5, and FIG. 6B shows the positional relationship between the protection unit 5, the culture rope R, and the shell hanging pin P.

  In the present embodiment, the protection unit 5 includes two plate-like bodies 51a and 51b. The plate-like body 51a has a horizontal member 511a and an inclined member 512a, and the plate-like body 51b has a horizontal member 511b and an inclined member 512b. An opening 25 (FIG. 6B) is provided on the upper surface of the housing 2 at a position corresponding to the space between the disk stack 44a and the disk stack 44b. The plate-shaped bodies 51a and 51b are inclined members 512a. The horizontal members 511a and 511b are attached to the upper surface of the housing 2 by, for example, welding or screwing so that 512b enters the opening 25 of the housing 2.

  A gap 52 is provided between the edge 513a of the plate-like body 51a and the edge 513b of the plate-like body 51b. The edges 513a and 513b are formed to extend substantially parallel to the central axis of the disk stacks 44a and 44b, and the gap 52 extends substantially parallel to the central axis of the disk stacks 44a and 44b. The protective portion 5 is formed so as to be disposed at a position corresponding to between the body 44a and the disk stacking pair 44b. The culture rope R in a state where the shell hanging pin P is inserted travels between the gaps 52 so that the length direction thereof is parallel to the length direction of the gap 52.

  The plate-like body 51a of the protection unit 5 is disposed as close as possible to the disk stack 44a, and the plate-shaped body 51b is disposed as close as possible to the disk stack 44b. Further, as shown in FIG. 6, the plate-like bodies 51a and 51b have a substantially square cross-sectional shape in a direction crossing the edges 513a and 513b by the inclined members 512a and 512b and the horizontal members 511a and 511b. It is formed to have. By forming the cross-sectional shape into a substantially U-shape, as shown in FIG. 6B, the opposing edges 513a and 513b are arranged between the disk stack 44a and the disk stack 44a and the disk stack 44a. 44b.

  The gap 52 of the protection part 5 is preferably narrower than the diameter of the culture rope R and wider than the diameter of the thickest part of the shell hanging pin P, but is not limited to this and is wider than the diameter of the culture rope R. You can also Even if the gap 52 is wider than the diameter of the culture rope R, the protection portion 5 may be configured so that the culture rope R does not contact the disk stacks 44a and 44b.

  As shown in FIGS. 3 and 4, the shell suspending pin removing device 1 preferably includes a rope pressing portion 6 on the protective portion 5. The rope pressing portion 6 functions to press the culture rope R from above and hit the gap 52. FIG. 7 shows the rope pressing portion 6, FIG. 7 (a) is a front view, and FIG. 7 (b) is a plan view.

  The rope pressing portion 6 includes a supporting member 61 erected on the upper surface of the housing 2, a lever 63 that is connected to the supporting member 61 via a spring 62, and that can rotate around a fulcrum 64, and a pressing member 65. Have. The support member 61 can be directly attached to the housing 2 by, for example, welding or screwing. However, as shown in FIG. 7B, the support member 61 is formed in an L shape with the support member 61. The base member 67 may be attached to the upper surface of the housing 2, and the support member 61 may be attached to the protection unit 5.

  The pressing member 65 is provided at the lower end of the lever 63 so as to protrude from the lever 3 in a direction perpendicular to the length direction of the lever 63. Therefore, as shown in FIG. 8 which will be described later, the pressing member 65 can press the culture rope R, which is arranged and moved in the gap 52 of the protection portion 5, against the gap 52 from above with the force of the spring 62. . By lifting the lever 63 about the fulcrum 64 in the direction of the arrow, the pressing member 65 can be moved away from the culture rope R.

[How to use the device]
Below, the usage method of the pin removal apparatus 1 for shell suspension by this invention is demonstrated.
FIG. 8 shows the usage state of the pin removal apparatus 1 for hanging shellfish. First, the motor 3 of the pin removal device 1 for suspending shells is operated to rotate the disk stacks 44a and 44b of the pin removal unit 4 in opposite directions. The rotation direction is, for example, the direction of the arrow shown in FIGS.

  The pressing member 65 is moved upward by tilting the lever 63 of the rope pressing portion 6 in the direction of the arrow shown in FIG. After the pressing member 65 is moved upward, the culture rope R in a state where the shell hanging pin P is inserted is disposed along the gap 52 between the plate-like bodies 51 a and 51 b of the protection unit 5. Next, by returning the lever 63 of the pressing part 6, the pressing member 65 is arranged in a direction crossing the culture rope R. The culture rope R is pressed against the gap 52 by the force of the spring 62 of the pressing portion 6.

  Next, the culture rope R is moved in the direction indicated by the white arrow in FIG. The culture rope R is assumed to be moved by an operator in this embodiment. However, for example, a device for winding the culture rope R is arranged on the downstream side in the movement direction of the culture rope R, and a guide device for guiding the culture rope R to the gap 52 of the protection unit 5 is arranged on the upstream side in the movement direction of the culture rope R. By doing so, the pin P for shell suspension can also be removed, moving the culture rope R automatically.

  When the culture rope R moves along the gap 52, the shell hanging pin P inserted into the culture rope R enters the gap 52 as shown in FIG. It is fed between the laminates 44a and 44b. The shell suspension pin P fed between the disk stacks 44a and 44b is reliably pulled out from the culture rope R by the non-linearly arranged protrusions 444a and 444b of the disk stacks 44a and 44b.

  That is, by arranging the protrusions 444a and 444b so as to be arranged in a non-linear manner and so that the distance between them is close, for example, at a position where the tip portions 448a and 448b are opposed to each other, Both tip portions 448a and 448b bite in from both sides of the shell suspension pin P and pull the pin P downward, and the protection portion 5 stops the culture rope R applied with a downward force by pulling the pin P. Thus, the pin P for shell suspension can be reliably pulled out from the culture rope R. In another place, for example, in a location where the tip 448a of the disk stack 44a and the valley 446b of the disk stack 44b are opposed to each other, the tip 448a bites into the shell hanging pin P and causes the pin P to go into the valley 448b. While pulling down while feeding, the protection part 5 stops the culture rope R applied with a downward force by pulling the pin P, so that the pin P for shell suspension can be reliably pulled out from the culture rope R. . Thus, the mechanism when the pin P for shell suspension is pulled downward by the rotation of the disk stacks 44a and 44b varies in the length direction and the circumferential direction of the disk stacks 44a and 44b. The shell hanging pin P is surely removed from the culture rope R at any position while R moves and the shell hanging pin P travels from the front end to the rear end of the disk stack 44a, 44b. Become.

  The shell suspension pin P removed from the culture rope R falls downward from between the disk stacks 44a and 44b, and from the pin discharge port 23 provided in the housing 2 below the disk stacks 44a and 44b. , Discharged outside the apparatus 1.

DESCRIPTION OF SYMBOLS 1 Shell removal pin removal apparatus 2 Case 21 Upper case 22 Lower case,
23 Pin discharge port 24 Support portion 25 Opening 3 Motor 31 Rotating shaft 32 Gear 4 Pin removal unit 41a Sub unit 42a Central shaft 44a Disk stack (first rotating body)
44a1 (first) disk 442a (first) disk body 443a outer surface 444a (first) protrusion 446a valley 448a tip 46a disk stack stop 48a gear 41b subunit 42a central shaft 44b disk stack (second) Rotating body)
44b1 (second) disk 442b (second) disk body 443b outer surface 444b (second) protrusion 446b valley 448b tip 46b disk stack stopper 48b gear 5 protection part 51a, 51b plate-like body 511a, 511b horizontal Member 512a, 512b Inclined member 513a, 513b Edge 52 Clearance 6 Rope holding part 61 Supporting member 62 Spring 63 Lever 64 Support point 65 Holding member 67 Base member P Pin for shell suspension R Culture rope S Scallop

Claims (11)

A shell suspending pin removing device for removing a shell suspending pin inserted into a rope from the rope,
A first rotating body having a plurality of first protrusions shaped to bite into a shell hanging pin on the outer surface and rotating around a central axis;
A plurality of second protrusions shaped to bite into the shell-suspending pins are provided on the outer surface, rotate around the central axis in a direction opposite to the first rotary body, and the central axis is the first rotary body A second rotating body disposed in proximity to the first rotating body and being substantially parallel to the central axis of
With
One or both of the plurality of first protrusions and the plurality of second protrusions are arranged so as to be aligned non-linearly with respect to the length direction of the central axis of the first and second rotating bodies. Has been
The rope into which the shell hanging pin is inserted travels in parallel with the central axes of the first and second rotating bodies in the vicinity of the first and second rotating bodies, so that the shell hanging pins are A pin removal device for hanging shells configured to be inserted between the first protrusion and the second protrusion.   The shell hanging pin removing device according to claim 1, wherein the plurality of first protrusions are irregularly arranged with respect to a central axis direction of the first rotating body.   The shell suspending pin removing device according to claim 1 or 2, wherein the plurality of second protrusions are irregularly arranged with respect to a central axis direction of the second rotating body.   In the first rotating body and the second rotating body, the interval when the first protrusion and the second protrusion are closest to each other is narrower than the thickness of the thinnest portion of the shell suspension pin. The pin removal apparatus for shell suspension of any one of Claim 1- Claim 3 arrange | positioned adjacent to.   The protection part further protects the rope that travels close to the first and second rotating bodies from coming into contact with the first and second rotating bodies, and the protection part includes the first and second rotating bodies. There is a gap formed so as to extend substantially parallel to the central axis of the second rotating body, and the gap is located at a position corresponding to between the first rotating body and the second rotating body. The pin removal device for shell suspension according to any one of claims 1 to 4, which is arranged.   The protective part has two plate-like bodies each having an edge extending in parallel with the central axis of the first and second rotating bodies, and the edge of the two plate-like bodies is the gap And each of the plate-like bodies has a substantially U-shaped cross-sectional shape in a direction crossing the edge portion, and is disposed adjacent to the first and second rotating bodies. The pin removal device for shellfish hanging according to claim 5.   The pin removal device for shell hanging according to claim 5 or 6 further provided with a pressing member for pressing a rope against said crevice of said protection part.   The pin member for suspending shellfish according to claim 7, wherein the pressing member is a rod-shaped member that extends in a direction crossing the gap and is movable in a direction away from the gap. The first rotating body includes a plurality of first protrusions each having a first disk main body and the plurality of first protrusions arranged on the outer peripheral surface of the first disk main body at intervals in the circumferential direction. 1 disk is a first disk stack formed by stacking in the length direction of the rotating shaft,
The second rotating body includes a plurality of second protrusions each having a second disk main body and the plurality of second protrusions arranged at intervals in the circumferential direction on the outer peripheral surface of the second disk main body. The second disk stack is configured by stacking two disks in the length direction of the rotation axis.
The pin removal apparatus for shell suspensions of any one of Claim 1- Claim 8.   Each of the plurality of first and second protrusions is provided with a tip portion formed at an acute angle so as to bite into the shell suspension pin at a front portion in the rotation direction. The pin removal apparatus for shell suspension of any one of Claims. The pin removal device for shell suspension according to claim 9, wherein either one or both of the first disk stack and the second disk stack further includes a spacer disposed between the adjacent disks. .

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