JP2009207397A - Automatically feeding device for fish - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automatically feeding device for fish, capable of not only feeding the fish of a kind not eating the feed staying in a liquid but also feeding the fish of a kind not eating the feed floating on the liquid surface, and having high generality. <P>SOLUTION: The automatically feeding device 10 for the fish is constituted of a storing part body 12 and a blockage body 14. The blockage body 14 stores the feed and a liquid in combination with the storing part body 12 in a closed state, and allows the feed and the liquid to move along a moving direction within a prescribed position in a released state of the blockage. The automatically feeding device 10 for the fish preferably further includes a blockage member 13. The blockage member 13 can block the storing part body 12 at a prescribed intermediate position. The prescribed intermediate position is the previously set position in the intermediate position related to the moving direction of the feed and the liquid in a space for storing the feed and the liquid formed by the blockage body 14 in combination with the storing part body 12. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an automatic fish feeding device that feeds fish.

  FIG. 11: is a front view of the compound feed feeding apparatus 1 which is an automatic fish feeding apparatus based on a prior art. The mixed feed feeding apparatus 1 includes a feed hopper 2, a metering and feeding means 3, a drive motor 4, and a temporary storage hopper 5. The compound feed feeder 1 calculates in advance a predetermined amount of feed stored in the feed hopper 2 and sends it to the temporary storage hopper 5 by the metering delivery means 3, so as to correspond to the type and size of the fish to be raised in advance. Feed with the set amount and time.

Japanese Patent Laid-Open No. 08-308427

  Depending on the type of fish, you may not eat feed that stays in the liquid, and you may not eat feed that has floated to the surface. Even if feed is introduced into the aquaculture tank by the compound feed feeder 1 according to the prior art, there is a problem that the feed may stop or float and fish to be bred may not be eaten.

  An object of the present invention is to provide a highly versatile automatic fish feeding apparatus capable of feeding a kind of fish that does not eat a feed that stays in the liquid and a kind of fish that does not eat a feed that floats on the liquid surface. It is to be.

  According to this invention (1), an automatic fish feeding apparatus is comprised including the storage part main body and the obstruction | occlusion body. The storage unit body defines the internal space from the surroundings. The internal space is a space where the feed is stored or moved together with the liquid. The closing body can close the reservoir main body at a predetermined position. Further, the closed body stores the feed and liquid together with the storage unit main body in the closed state, and allows the feed and liquid to move to a predetermined position in the state where the closed state is released.

  Moreover, according to this invention (2), an automatic fish feeding apparatus is further comprised including a breeding fish detection sensor and a drive part. The breeding fish detection sensor detects a fish in a predetermined region in the vicinity of the storage unit main body in a culture tank in which the fish is bred, and outputs a detection signal. The drive unit displaces the closing body according to the detection signal, and releases the blockage of the storage unit main body by the closing body.

  Moreover, according to this invention (3), an automatic fish feeding apparatus is further comprised including the obstruction | occlusion member. The closing member can close the reservoir main body at a predetermined predetermined position. The predetermined midway position is a predetermined position in the middle of the moving direction of the feed and the liquid in the space where the closing body stores the feed and the liquid together with the storage unit main body. The blocking member stores the feed and the liquid together with the storage unit main body in the closed state, and allows the feed and the liquid to move at a predetermined midway position along the direction of movement in the state where the blocking is released.

  Further, according to the present invention (4), the drive unit can switch between closure and release of the closure body by the closure body and the closure member, and when the closure of the closure body is released from the storage body. Previously, the closing member closes the reservoir body.

According to the present invention (5), the feed is live fish and shellfish.
According to the invention (6), the breeding fish detection sensor includes an infrared camera.

  Moreover, according to this invention (7), the obstruction | occlusion body is arrange | positioned at the edge part of the storage part main body regarding the direction to which feed and a liquid move, and can be angularly displaced. If the external force with respect to the closing body is released, the closing body closes the reservoir main body by a portion located above the axis of angular displacement. Further, when the closing body is angularly displaced about the axis of angular displacement, the storage body is closed and released.

  According to the present invention (8), a plurality of storage section main bodies are provided, and a plurality of closing sections are provided corresponding to the number of storage section main bodies. The breeding fish detection sensor detects the number of individuals of the breeding fish close to the plurality of storage unit main bodies, and outputs a detection signal corresponding to the detected number of the breeding fish. The drive unit can individually switch between closure and release of the plurality of closures. Further, the drive unit releases the blockage of a predetermined number of the closed bodies among the plurality of closed bodies by inputting the detection signal within a predetermined time.

  According to this invention (1), an automatic fish feeding apparatus is comprised including the storage part main body and the obstruction | occlusion body. Thereby, by opening the obturator, the feed can be released together with the liquid and can be fed to the fish. By releasing the feed together with the liquid, the feed can be moved together with the liquid, and the feed can be prevented from stopping immediately after being released. In addition, the feed can be prevented from rising immediately after the feed is released. This makes it possible to feed the fish of a type that does not eat the feed that stays or floats in the liquid. Therefore, a highly versatile automatic fish feeding device can be realized.

  Moreover, according to this invention (2), an automatic fish feeding apparatus is further comprised including a breeding fish detection sensor and a drive part. As a result, when the fish to be reared exists within a predetermined area, it can be fed. Therefore, immediately after the feed is released, it is possible to increase the possibility that the reared fish will eat the feed. Since the feed does not stop or float immediately after it is released, it can be fed to fish that do not try to eat the feed that stops or floats. Therefore, it is possible to prevent the feed from being wasted without being eaten by the fish to be bred, and it is possible to prevent the feed remaining without being eaten from contaminating the liquid in the culture tank. Moreover, human power can be saved by feeding automatically when the fish to be reared is within a predetermined area. Further, by automatically feeding, it is possible to prevent a shortage of food from occurring for the fish to be raised. Therefore, cannibalism can be prevented even if the fish being raised has a habit of eating.

  Moreover, according to this invention (3), an automatic fish feeding apparatus is further comprised including the obstruction | occlusion member. Thus, by closing the closing member when the closing body is opened, it is possible to prevent all of the feed and liquid stored in the storage portion main body from being released. Therefore, feed and liquid are stored in advance in a space where the feed and liquid are stored in a state where the closing member is closed, and a predetermined amount of feed and liquid is released by closing the closing member and opening the closing body. It becomes possible to do.

  According to the present invention (4), the drive member closes the reservoir main body before the closing of the closure body with respect to the reservoir main body is released. Thereby, when the blockage of the closed body is released and feeding is performed, it is possible to automatically prevent all of the feed and liquid stored in the storage unit main body from being released. Therefore, the amount of feed and liquid located between the closing member and the closing body can be defined. Thereby, a predetermined amount of feed can be fed.

  Moreover, according to this invention (5), a feed is live fishery products. Since the automatic fish feeding device can store the feed together with the liquid and release it together with the liquid, the feed can be fed while the feed is kept fresh. Therefore, even fish that only try to eat live seafood can be fed.

  According to the invention (6), the breeding fish detection sensor includes an infrared camera. Because the fish being bred live and act, the temperature is higher than the surrounding water temperature. Since the infrared camera can detect the difference in temperature, it can image the fish to be bred. In addition, the infrared camera can capture the fish to be reared even when the liquid in the aquaculture tank is turbid as compared with a camera that captures the visible light. Therefore, it is possible to reliably detect that the fish to be reared is located within a predetermined area.

  According to the present invention (7), the closure body is angularly displaced around the axis of angular displacement, whereby the closure of the storage body and the release of the closure are switched. Thereby, the feed and liquid located in the internal space of the storage unit main body can further open the closure body with respect to the storage unit main body by applying a load to the closure body, thereby facilitating the release of the feed and liquid. it can. Therefore, it is possible to reduce the driving force required to change the posture of the closing body when the closing is released, compared to the case where the load of feed and liquid is not used for releasing the closing of the closing body. Moreover, the time concerning discharge | release of a feed and a liquid can be shortened.

  Further, when the external force on the closed body is released, the closed body closes the reservoir main body by the portion located above the axis of angular displacement, so that the release of feed and liquid is completed, and the closed body is When the applied feed and liquid loads are released, the portion of the closing body that closes the reservoir main body is located above the axis of angular displacement. Thereby, since the drive part makes the closure body block the storage part main body, the operation | movement given to a closure body can be made small.

  According to the present invention (8), a plurality of storage unit main bodies are provided, and the drive unit releases a blockage of a predetermined number of blockages among the plurality of blockages by receiving a detection signal. Thereby, the amount of feed to be released can be changed according to the number of domesticated fish close to the storage unit main body. Therefore, it is possible to prevent the amount of feed given to the domestic fish from being different depending on the domestic fish. This can increase the possibility that the reared fish will grow equally.

  Hereinafter, a plurality of embodiments for carrying out the present invention will be described with reference to the drawings. In the following description, parts corresponding to matters already described in the forms preceding each form may be denoted by the same reference numerals, and overlapping descriptions may be omitted. When only a part of the configuration is described, the other parts of the configuration are the same as those described in the preceding section. Not only the combination of the parts specifically described in each embodiment, but also the embodiments can be partially combined as long as the combination does not hinder. Moreover, each embodiment is illustrated in order to embody the technique which concerns on this invention, and does not limit the technical scope of this invention. The technical contents according to the present invention can be variously modified within the technical scope described in the claims.

<First Embodiment>
FIG. 1 is a perspective view of an automatic fish feeding apparatus 10 according to the first embodiment of the present invention. FIG. 2 is a perspective view of a part of the driving unit 18 for driving the closing body 14 in the first embodiment of the present invention. FIG. 3 is a perspective view of a part of the driving unit 18 for driving the closing member 13 in the first embodiment of the present invention. The automatic fish feeding device 10 is a device that automatically feeds fish such as the domesticated fish 11 to be cultivated. The automatic fish feeding device 10 automatically feeds when the breeding fish 11 comes close to this device. The breeding fish 11 is, for example, a fish such as a perch, puffer, damselfish, scorpionid, flying fish, pearlfish, ostrich, mullet, carp, cod, salmon, and their fry. In the first embodiment, the breeding fish 11 is assumed to be a fry of a fish belonging to the order Perch, Sabaceae and Tuna. Although the size of the domestic fish 11, for example, the body length, body width, weight, etc., is not specified, the size of the feed given to the domestic fish 11 is preferably set according to the size of the domestic fish 11. Hereinafter, juvenile fish belonging to the order of the perch, mackerel family, and tuna are sometimes referred to as “tuna fry” or simply “tuna”.

  The automatic fish feeding apparatus 10 includes a storage unit body 12, a closing member 13, and a closing body 14. The reservoir main body 12 defines the internal space from the surroundings. The internal space is a space where the feed is stored or moved together with the liquid. The closing member 13 can close the reservoir main body 12 at a predetermined midway position. The predetermined midway position 16 is a predetermined position in the middle of the internal space with respect to the direction of movement of the feed and liquid. The blocking member 13 stores feed and liquid together with the storage unit main body 12 in a closed state. The blocking member 13 allows the feed and liquid to move at a predetermined midway position 16 along the direction of movement in a state where the blocking is released.

  The closing body 14 can close the reservoir main body 12 at a predetermined position. The predetermined position is a predetermined position different from the predetermined midway position 16. Specifically, the predetermined position is a position where the downstream end of the storage unit body 12 is covered. The closing body 14 stores the feed and liquid together with the storage unit main body 12 in the closed state, and allows the feed and liquid to move in a predetermined position along the moving direction in the state where the closing is released. With respect to the direction of movement of the feed and liquid moving through the reservoir main body 12, the closing member 13 is located on the upstream side and the closing body 14 is located on the downstream side. Therefore, the closing member 13 is referred to as an “upstream member”. Is referred to as a “downstream member”.

  FIG. 4 is a perspective view showing a state where the automatic fish feeding apparatus 10 according to the first embodiment of the present invention is installed in the aquaculture tank 40. FIG. 5 is a perspective view of the aquaculture tank 40 in which the automatic fish feeding apparatus 10 according to the first embodiment of the present invention is installed. The reservoir main body 12 is installed facing the flow of liquid held by the flow path constituting body 42 of the culture tank 40. The aquaculture tank 40 includes a flow path structure 42, and the flow path structure 42 defines a flow path. The flow path is formed in an endless annular shape, and the liquid flows in a predetermined direction in the flow path. In the present embodiment, the flow path has a circumferential shape, and the liquid retained in the flow path structure 42 flows toward one circumferential direction of the circumference formed by the flow path. The liquid held in the flow path structure 42 and the liquid stored together with the feed in the storage unit body 12 are water or water containing salt, and may be, for example, fresh water, seawater, or brackish water. The liquid retained in the aquaculture tank 40 is a liquid suitable for breeding the breeding fish 11.

  The feed is live seafood. In this embodiment, the breeding fish 11 is a tuna fry, and accordingly, the feed is juvenile salmon. “Salmon” means Persian, Persian and Thai fish. In the aquaculture tank 40, a plurality of tuna larvae are bred, and a plurality of salmon are fed at a time as feed for the plurality of tuna. The body length, body width, and weight of any cocoon are smaller than the average body length, average body width, and average weight of a plurality of tuna bred. However, in other embodiments, the feed may be, for example, squid. The liquid stored with the feed is a liquid suitable for maintaining fresh fish and shellfish as feed. The liquid retained in the culture tank 40 and the liquid stored together with the feed are preferably liquids having the same composition.

  In 1st Embodiment, the storage part main body 12 is formed cyclically | annularly, and prescribes | regulates internal space from the circumference | surroundings. Hereinafter, in the first embodiment, the reservoir main body 12 is referred to as an “annular portion” 15. The axis of the annular portion 15 connects the opening 36 at one end of the annular portion 15 and the opening at the other end, and coincides with the direction of movement of feed and liquid. One end of the annular portion 15 is disposed in the liquid retained by the flow path structure 42. The other end of the annular portion 15 is disposed above the liquid level of the liquid in the flow path. The annular portion 15 is arranged in a posture in which the axis of the annular portion 15 in the vicinity of the other end of the annular portion 15 is vertical, and the axis of the annular portion 15 is smoothly directed from the other end of the annular portion 15 to one end. Bend. The axis of the annular portion 15 means a finite length curve located in the internal space of the annular portion 15.

  The axis of the curved annular portion 15 is formed as an arc corresponding to a circumferential angle of 30 degrees or more and 90 degrees or less, preferably 45 degrees or more, more preferably 60 degrees or more and less than 90 degrees, and 80 degrees in this embodiment. It is formed as an arc corresponding to a certain circumferential angle. In another embodiment, the axis of the annular portion 15 may be formed as a shape forming a part of an ellipse. The axis of the annular portion 15 may be formed so as to partially include a straight line as long as it is smoothly curved rather than refracted. If the direction from the upper end to the lower end is decomposed into a vertical component and a horizontal component at the lower end of the axis of the annular portion 15, the direction toward the vertically lower Z2 is included as a vector component.

  The annular portion 15 is formed in a tapered shape from the other end portion toward the one end portion. The cross-sectional shape when the internal space of the annular portion 15 is cut by a virtual plane perpendicular to the axis of the annular portion 15 is rectangular at any position from the other end to one end. The rectangle includes both a rectangle excluding a square and a square. The annular portion 15 is configured to include two flat plate-like members and two plate-like curved members that are curved. The two flat plate-like members are arranged in parallel to a virtual plane including the axis of the arc-shaped annular portion 15. This virtual one plane is vertical, and the horizontal direction included in this virtual one plane is referred to as “horizontal one direction” X.

  The center point of the curvature of each plate-like bending member is located on the same side from the other end portion of the annular portion 15 as both the center points of the two plate-like bending members. In one horizontal direction X, the direction from the other end of the annular portion 15 toward the center point of curvature of the two plate-like curved members is referred to as “one horizontal direction” X1, and the opposite direction is referred to as “the other horizontal direction”. “X2”. A plate-shaped bending member at a position far from the center of curvature of each plate-shaped bending member is referred to as an “outward bending member”, and a plate-shaped bending member at a close position is referred to as an “inward bending member”.

  The other end portions of the two flat plate-like members and the other end portions of the two plate-like curved members constituting the other end portion of the annular portion 15 are arranged substantially horizontally. “Substantially horizontal” includes “horizontal”. In other words, the opening defined by the other end of the annular portion 15 opens toward the vertically upward Z1. One end portion of the outward bending member that forms one end portion of the annular portion 15 is positioned on one side X1 in the horizontal direction from one end portion of the inward bending member that forms one end portion of the annular portion 15. One end of the inward bending member and one end of the outward bending portion are connected by two flat members. A straight line perpendicular to the plane in contact with one end of the annular portion 15 forms an angle with respect to the horizontal, and the direction from the inner space of the annular portion 15 toward the outer space of the annular portion 15 is the vertical direction. If it is decomposed into the Z component and the horizontal one-direction X component, the direction toward the vertically upward Z1 is included as a vector component. Hereinafter, a straight line perpendicular to a plane in contact with one end of the annular portion 15 is referred to as a “vertical straight line”.

  The upstream member and the downstream member are formed as flat members, and the upstream member is installed in the internal space of the annular portion 15. When the upstream member partitions the internal space of the annular portion 15 at the predetermined midway position 16 and closes the annular portion 15, the upstream member takes a vertical posture. In the present embodiment, the predetermined midway position 16 is set near the center from the upper end to the lower end of the axis of the annular portion 15. The upstream side member is connected to the inwardly curved portion by a hinge at the upper end when the vertical member takes a vertical posture at a predetermined midway position 16, and is angularly displaceable around the hinge. The upstream member takes a vertical posture by a motive force based on weight in a natural state where no external force is applied. Hereinafter, the side close to the upper end of the axis of the annular portion 15 may be referred to as “upper end side”, and the side closer to the lower end may be referred to as “lower end side”.

  The downstream member is installed at one end of the annular portion 15, and the predetermined position is set near one end of the annular portion 15. In a state where the downstream member is located at a predetermined position and closes the annular portion 15, the downstream member contacts one end portion of the annular portion 15. The downstream side member is connected to one end of the inwardly curved portion with a hinge, and is angularly displaceable about the hinge. In a natural state where no external force is applied, the downstream member contacts the one end portion of the annular portion 15 by a motive force based on weight, and closes the opening 36 at the one end portion of the annular portion 15.

  Moreover, even if the automatic fish feeding apparatus 10 is arranged in the culture tank 40 and the buoyancy from the liquid acts on the closing body 14 and the closing member 13, the closing body 14 and the closing member 13 are kept in a natural state. Even when the liquid flowing inside applies a force to the closing body 14 and the closing member 13, the closing body 14 and the closing member 13 are maintained in a natural state.

  In the present embodiment, the downstream member is formed in a substantially rectangular shape, and the area of the surface perpendicular to the thickness direction of the downstream member is set larger than the opening area of the opening 36 at one end of the annular portion 15. In a state in which the downstream member closes the annular portion 15 at the second predetermined portion, a part of the downstream member is formed as a protruding portion that protrudes radially outward with respect to the vertical straight line. A protrusion part is provided in the part which contacts the flat member of the annular part 15 side wall among downstream members.

  The automatic fish feeding apparatus 10 further includes a breeding fish detection sensor 17 and a drive unit 18. The breeding fish detection sensor 17 detects a fish in a predetermined region in the vicinity of one end of the annular portion 15 in the culture tank 40 where the fish is raised, and outputs a detection signal. The drive unit 18 displaces the downstream member in accordance with the detection signal, and releases the blocking of the annular portion 15 by the downstream member. The breeding fish detection sensor 17 includes an infrared camera 34.

  The infrared camera 34 performs imaging by receiving infrared rays emitted from an object located in the imaging range. The infrared camera 34 has a waterproof structure and can be imaged in liquid. An object in a temperature range suitable for breeding fish emits infrared rays in an amount corresponding to the temperature of the object. The infrared camera 34 can detect a difference in temperature of an object by receiving infrared rays and performing imaging. Because the fish being bred live and act, the temperature is higher than the surrounding water temperature. Therefore, if the domestic fish 11 is located in the imaging range, the domestic fish 11 can be imaged. For example, the infrared camera 34 may include a wavelength conversion filter that converts infrared light into visible light, and a charge coupled device (abbreviated as “CCD”).

  The breeding fish detection sensor 17 further includes an image processing unit, and the image processing unit detects the presence or absence of the breeding fish 11 within the imaging range of the infrared camera 34 by processing the image of the infrared camera 34. The predetermined area is an imaging range of the infrared camera 34 in the present embodiment. The image processing unit performs contour extraction, for example, by performing differentiation processing, and determines the presence or absence of the domestic fish 11 in the imaging range. The image processing unit performs contour extraction by differentiating the intensity of the infrared rays of the image captured by the infrared camera 34 by the change in the horizontal position and the change in the vertical position of the image data. Based on the ratio of the extracted contour size to the overall image size, it is possible to detect that the breeding fish 11 has approached the infrared camera 34 within the imaging range. A detection signal output from the breeding fish detection sensor 17 is input to the control unit 35. The control unit 35 controls and drives the drive unit 18 according to the detection signal from the breeding fish detection sensor 17.

  The drive unit 18 includes a first main driving gear 19, a second main driving gear 21, a first driven gear 22, a second driven gear 24, a first cam 26, a second cam 27, and a drive source 28. The first main driving gear 19, the second main driving gear 21, and the drive source 28 are installed in the vicinity of the other end of the annular portion 15. The first main driving gear 19 and the second main driving gear 21 are installed so as to share an angular displacement axis, and the angular displacement axis is angularly displaced by the drive source 28. The drive source 28 is realized by a motor, for example, and in the present embodiment is realized by a step motor. The angular displacement axis is installed perpendicular to the vertical direction Z and the horizontal one direction X and extending in the horizontal direction.

  The first driven gear 22 and the first cam 26 are installed in the vicinity of the upstream member. The first driven gear 22 and the first cam 26 are fixed to each other and installed so as to be angularly displaceable about the same axis. The first driven gear 22 is mechanically connected to the first main driving gear 19 by the first chain 32. The first chain 32 transmits the angular displacement of the first main driving gear 19 to the first driven gear 22. The first driven gear 22 and the first cam 26 are disposed on the lower end side with respect to the axis of the annular portion 15 with respect to the upstream member. The first driven gear 22 and the first cam 26 take a first posture and a second posture by angular displacement.

  In the second posture, the first cam 26 does not apply an external force to the upstream member, and the upstream member is in a natural state. When the first cam 26 is angularly displaced from the second posture to the first posture, a part of the first cam 26 is displaced by pushing the upstream member from the lower end side to the upper end side. As a result, the blocking of the annular portion 15 by the upstream member is released.

  The second driven gear 24 and the second cam 27 are installed in the vicinity of the downstream member. The second driven gear 24 and the second cam 27 are fixed to each other and installed so as to be angularly displaceable about the same axis. The second driven gear 24 is mechanically connected to the second main driving gear 21 by the second chain 33. The second chain 33 transmits the angular displacement of the second main driving gear 21 to the second driven gear 24. The first driven gear 22 and the second cam 27 are installed in the vicinity of the protruding portion of the downstream member, and in particular, the second cam 27 is installed below the protruding portion. The second driven gear 24 and the second cam 27 take a first posture and a second posture by angular displacement.

  In the first posture, the second cam 27 does not apply an external force to the downstream member, and the downstream member is in a natural state. When the second cam 27 is angularly displaced from the first posture to the second posture, a part of the second cam 27 is displaced by pushing the downstream member upward from below. As a result, the blocking of the annular portion 15 by the downstream member is released.

  The upstream member closes the annular portion 15 by releasing the blocking of the downstream member with respect to the annular portion 15. In the present embodiment, the downstream member closes the annular portion 15 by releasing the blocking of the upstream member with respect to the annular portion 15. The movements of the first main driving gear 19, the second main driving gear 21, the first driven gear 22, the second driven gear 24, the first cam 26, the second cam 27, and the drive source 28 are interlocked, and the first cam 26 and When either one of the second cams 27 takes the first posture, the other also takes the first posture. When one of the first cam 26 and the second cam 27 takes the second posture, the other also takes the second posture.

  As a result, the upstream member and the downstream member alternately close the annular portion 15 and release the closure alternately. It is preferable that the time during which the first cam 26 and the second cam 27 take an intermediate position between the first position and the second position is within one second. The shorter the time to take the intermediate posture, the less the amount of feed and liquid released to the lower end side of the annular portion 15 with both the upstream and downstream members half open. Can do.

  A plurality of larvae of salmon used as feed are scattered in the liquid at a density high enough not to be damaged by contact with each other in the liquid. The carp larvae that are packed together with the liquid and put in the aquarium have a habit of gathering more densely at a lower position in the aquarium. In the internal space of the annular portion 15, the upstream member is positioned below the internal space on the upper end side than the upstream member, and the larvae of the carp on the upper end side of the upstream member are concentrated near the upstream member. To do. In the internal space of the annular portion 15, the downstream side member is positioned below the internal space on the upper end side than the downstream side member, and the larvae of the carp on the upper end side from the downstream side member are concentrated near the downstream side member. To do. Due to this behavior, when the upstream member or the downstream member is unblocked, the carp larvae are released together with the liquid.

  Feed and liquid are introduced into the annular portion 15 from the other end of the annular portion 15, that is, from above the annular portion 15. Feeding of the feed and the liquid into the annular portion 15 can be performed manually, and a feed holding container for holding the feed and the liquid is further provided above the annular portion 15, and a predetermined portion of the annular portion 15 is provided. It is also possible to provide a structure in which a water level sensor is provided on the upper end side of the midway position 16 and the feed level and the liquid are automatically supplied to the annular portion 15 from the feed holding container when the water level sensor senses a drop in the liquid level. It is.

  When the upstream member closes the annular portion 15 at the predetermined midway position 16, feed and liquid are stored on the upper end side of the predetermined midway position 16. When the blocking of the upstream member is released, since the downstream member closes the annular portion 15 at a predetermined position, the feed and the liquid are stored on the upper end side from the predetermined position. In the internal space of the annular portion 15, the volume on the upper end side with respect to the predetermined midway position 16 is larger than the volume on the upstream side with respect to the predetermined position and on the downstream side with respect to the predetermined midway position 16.

  When the upstream member is closed and the downstream member is closed and the upstream member is unblocked, the feed and liquid stored on the upper end side from the predetermined midway position 16 are predetermined. It flows down to the position and moves to the internal space on the upper end side from the predetermined position. At this time, the internal space on the upper end side with respect to the predetermined position and the lower end side with respect to the predetermined intermediate position 16 is filled with a part of the feed and liquid stored on the upper end side with respect to the predetermined intermediate position 16. Thereby, when the upstream member is closed again and the downstream member is unblocked, the amount of feed and liquid released from the annular portion 15 can be made constant.

  It is preferable to disperse the tuna in the aquaculture tank 40 at a high density as long as the tuna does not damage each other and the tuna is not weakened by stress. Since tuna is a migratory fish, it has the property of always swimming at a speed above a certain speed. Tuna also has the property of chasing moving flocks, and eats fish that are moving while swimming. On the contrary, there is a habit of not trying to eat a fish that has stopped, and the feed that has once surfaced on the liquid surface does not try to eat even live seafood. A tuna eats a fish smaller than itself. Therefore, when a difference in growth occurs between the plurality of domestic fish 11 in the aquaculture tank 40, the tuna that has been grown large has a habit of slowly growing and cannibalizing small tuna.

  The shark does not have the property of swimming around a wide area at a high speed, but has the property of stopping. Therefore, even if the salmon juvenile is released into the aquaculture tank 40 where the tuna is raised as feed, the tuna does not eat the feed if the juvenile salmon fish stops.

  The breeding fish detection sensor 17 images a predetermined area close to the annular portion 15 and detects the presence or absence of tuna in the imaged area. The predetermined area is 30 centimeters (abbreviated as “cm”) or more and 1 meter (abbreviated as “m”) from the opening 36 at one end of the annular portion 15, specifically, one end of the outwardly curved member. It may be a range of 30 cm or more and 40 cm or less.

  When the breeding fish 11 is not located within the range detected by the breeding fish detection sensor 17, the first cam 26 and the second cam 27 are maintained in the first posture by the control of the drive unit 18 by the control unit 35. When the tuna enters the range detected by the breeding fish detection sensor 17, the infrared camera 34 captures the tuna image, and the captured image is processed, whereby the tuna approaches the automatic fish feeding apparatus 10. Is detected. Along with this, the breeding fish detection sensor 17 outputs a detection signal, and the detection signal is input to the control unit 35. The control unit 35 operates the drive unit 18 in response to a detection signal having information that the tuna has approached. The drive unit 18 angularly displaces the angular displacement shaft connected to the first main driving gear 19 and the second main driving gear 21, and switches the first cam 26 and the second cam 27 to the second posture.

  As a result, the blocking of the annular portion 15 by the downstream member is released, and the upstream member closes the annular portion 15. The feed and liquid located in the space between the upstream member and the downstream member are discharged from one end portion on the lower end side of the annular portion 15. Since the salmon larvae that are feed are released together with the liquid, they are not retained in the aquaculture tank 40 immediately after the release. When the tuna approaches the automatic fish feeding device 10, the larvae are released, and the released larvae move with the released liquid. Therefore, it is possible to increase the probability that the tuna will eat the larvae.

  If the range in which the breeding fish detection sensor 17 detects the breeding fish 11 is set to a range closer to the predetermined range, it becomes difficult to distinguish the breeding fish 11 from the released feed. If it is set to a far range, even if the feed and liquid are released, the probability that the domestic fish 11 does not eat the released feed increases.

  The control unit 35 can further control the driving unit 18 in terms of time. For example, in another embodiment, feeding may be performed for a predetermined length of time from a predetermined time, and such feeding may be repeated periodically. When performing such feeding, the first cam 26 and the second cam 27 take the first posture in a state where the tuna is not in proximity to the annular portion 15 during each feeding period. When the tuna approaches the portion 15, the second posture is switched.

  According to 1st Embodiment, the automatic fish feeding apparatus 10 is comprised including the storage part main body, the obstruction | occlusion member 13, and the obstruction | occlusion body 14. FIG. The storage unit body defines the internal space from the surroundings. The internal space is a space where the feed is stored or moved together with the liquid. The closing member 13 can close the storage unit body at a predetermined midway position 16. The predetermined midway position 16 is a predetermined position in the middle of the internal space with respect to the direction of movement of the feed and liquid. The blocking member 13 allows the feed and liquid to move at a predetermined midway position 16 along the direction of movement while the feed and liquid are stored together with the storage unit main body in the closed state and the blockage is released. The closing body 14 can close the storage unit main body at a predetermined position. The predetermined position is a predetermined position different from the predetermined midway position 16. The closing body 14 stores the feed and liquid together with the storage unit main body in the closed state, and allows the feed and liquid to move in a predetermined position along the movement direction in the state where the closing is released.

  Thereby, by opening the closing body 14, the feed can be released together with the liquid, and the fish can be fed. Further, if the closing member 13 is closed when the closing body 14 is opened, it is possible to prevent all of the feed and liquid stored in the storage unit main body from being released. By releasing the feed together with the liquid, the feed can be moved together with the liquid, and the feed can be prevented from stopping immediately after being released. In addition, the feed can be prevented from rising immediately after the feed is released. This makes it possible to feed the fish of a type that does not eat the feed that stays or floats in the liquid. Therefore, the highly versatile automatic fish feeding apparatus 10 can be realized.

  Moreover, according to 1st Embodiment, the closure member 13 obstruct | occludes the storage part main body by the obstruction | occlusion with respect to the storage part main body of the closure body 14 being cancelled | released. Thereby, when the blockage of the blocker 14 is released and feeding is performed, it is possible to automatically prevent all of the feed and liquid stored in the storage unit main body from being released. Thereby, the amount of feed and liquid located between the closing member 13 and the closing body 14 can be defined. Therefore, a predetermined amount of feed can be fed.

  Moreover, according to 1st Embodiment, feed is live fishery products. Since the feed is stored together with the liquid and released together with the liquid, live fish and shellfish as the feed can be fed in a fresh state. Therefore, even fish that only try to eat fresh seafood can be fed.

  Moreover, according to 1st Embodiment, the automatic fish feeding apparatus 10 is further comprised including the raising fish detection sensor 17 and the drive part 18. As shown in FIG. The breeding fish detection sensor 17 detects a fish in a predetermined region in the vicinity of one end of the annular portion 15 in the culture tank 40 where the fish is raised, and outputs a detection signal. The drive unit 18 displaces the closing body 14 according to the detection signal, and releases the blocking of the annular portion 15 by the closing body 14.

  As a result, when the fish to be reared exists within a predetermined area, it can be fed. This can increase the possibility that the reared fish will eat the feed immediately after the feed is released. Since the feed does not stop or float immediately after it is released, it can be fed to fish that do not try to eat the feed that stops or floats. Therefore, it is possible to prevent the feed from being wasted without being eaten by the fish to be bred, and it is possible to prevent the feed remaining without being eaten from contaminating the liquid in the culture tank 40.

  The axis of the annular portion 15 is smoothly curved from the other end of the annular portion 15 toward one end. The axis of the annular part 15 is not refracted but is smoothly curved. As a result, when the feed and liquid stored in the annular portion 15 move downward by the driving force based on weight, power can be applied to the feed and liquid in the direction toward the horizontal direction X1.

Second Embodiment
FIG. 6 is a cross-sectional view of an automatic fish feeding apparatus 10A according to the second embodiment of the present invention. FIG. 7 is a cross-sectional view of the automatic fish feeding apparatus 10A according to the second embodiment of the present invention cut along the cutting plane line AA shown in FIG. FIG. 6 corresponds to a cross-sectional view of the automatic fish feeding apparatus 10 </ b> A cut along the cutting plane line BB shown in FIG. 7. The automatic fish feeding apparatus 10A according to the second embodiment is similar to the automatic fish feeding apparatus 10 according to the first embodiment, and will be described below with a focus on differences between the second embodiment and the first embodiment.

  In the first embodiment, the closing body 14 and the closing member 13 are configured to be driven by the drive unit 18 including a plurality of gears, the first cam 26, and the second cam 27. In the second embodiment, The air cylinder 37 is used for driving as will be described later.

  The automatic fish feeding apparatus 10A according to the second embodiment includes a storage unit main body 12A and a closing body 14A. The closed body 14A stores the feed and liquid together with the storage unit main body 12A in the closed state, and allows the feed and liquid to move in a predetermined position along the direction of movement in the state where the closed state is released. The automatic fish feeding apparatus 10A further includes a closing member 13A. The closing member 13A can close the storage portion main body 12A at a predetermined midway position. The predetermined midway position is a predetermined position in the middle of the moving direction of the feed and liquid in the space where the closing body 14A stores the feed and liquid together with the storage body 12A. Regarding the direction of movement of the feed and liquid moving through the reservoir main body 12A, the closing member 13A is located on the upstream side and the closing body 14A is located on the downstream side. Therefore, the closing member 13A is referred to as an “upstream member” and the closing body 14A. Is referred to as a “downstream member”.

  The storage unit main body 12A is configured to include a storage tank that stores the feed together with the liquid, and a passage structure that configures the passage of the feed and liquid discharged from the storage tank. In the storage tank, an opening that is opened toward the passage structure is formed in a part below the peripheral wall, and is formed in a substantially rectangular parallelepiped shape. The storage tank is installed with the thickness direction of the peripheral wall where the opening is formed as a horizontal direction. Hereinafter, the thickness direction of the peripheral wall in which the opening is formed is referred to as “horizontal one direction” X, and the direction from the center of the rectangular parallelepiped of the storage tank to the peripheral wall in which the opening is formed among the two directions in the horizontal one direction X. The “horizontal one” is referred to as X1, and the opposite direction is referred to as “the other horizontal” X2.

  The storage tank includes four peripheral walls and a bottom, and is open upward. Of the four peripheral walls, the bottom is disposed from the upper end of the peripheral wall of the other horizontal X2 toward the lower side of the peripheral wall of the horizontal one X1. The bottom defines an inclined surface. The inclined surface smoothly continues from the inner surface facing the inside of the storage tank at the upper end of the peripheral wall of the other horizontal direction X2 to the surface defining the internal space of the storage tank from below at the lower part of the peripheral wall of the one horizontal direction X1. Of the inclined surface, the portion facing the inside of the storage tank at the upper end of the peripheral wall of the other X2 in the horizontal direction is referred to as the “upper part of the inclined surface”, and the internal space of the storage tank is viewed from below at the lower part of the peripheral wall of the horizontal one X1. The part to be defined is referred to as “the inclined surface lower part”.

  A horizontal direction perpendicular to the horizontal direction X is called a “crossing direction” Y. The contact surface in each part of the inclined surface is parallel to the intersecting direction Y at any position of the inclined surface. The inclined surface is a curved surface that is smoothly curved, and the center point of the radius of curvature of the curved surface when the inclined surface is viewed in the crossing direction Y is in one horizontal direction X1 from the upper portion of the inclined surface at any position. Located above the inclined surface lower part.

  The passage structure is formed in a cylindrical shape having an axis extending in one horizontal direction X, and includes two flat plate portions having a vertical direction Z as a thickness direction and two flat plate portions having a cross direction Y as a thickness direction. Consists of including. The dimension of the crossing direction Y of the passage structure is not more than the dimension of the crossing direction Y of the storage tank, and in this embodiment, the dimension of the crossing direction Y of the passage structure and the dimension of the crossing direction Y of the storage tank are: It shall be the same. A predetermined midway position and a predetermined position are set at midway positions in the horizontal one direction X of the passage structure. The predetermined midway position is located on the other side X2 in the horizontal direction from the predetermined position. A gap is formed in each of the plate-like members forming the bottom plate of the passage structure at two locations, the predetermined midway position and the predetermined position. An upstream member capable of closing the passage structure at the predetermined intermediate position is inserted into the gap formed at the predetermined intermediate position, and a downstream member capable of closing the passage structural body at the predetermined position is inserted into the gap formed at the predetermined position. A side member is inserted.

  The upstream member and the downstream member are each formed as a flat plate member having a horizontal direction X in the thickness direction, and the blockage is released by displacing the passage structure downward. Two air cylinders 37 that are separated from each other in the cross direction Y are disposed below the upstream member. The lower end of the upstream member is connected to the piston rod 38 of the air cylinder 37 via a coupling fitting 39. Two air cylinders 37 that are separated from each other in the intersecting direction Y are also arranged below the downstream member, and the lower end of the downstream member is connected to the piston rod 38 of the air cylinder 37 via a coupling fitting 39.

  The dimension in the intersecting direction Y of the upstream member and the downstream member is set to be approximately equal to the dimension in the intersecting direction Y of the interior space of the passage structure and slightly smaller than the dimension of the interior direction of the passage structure. Is done. The dimension in the intersecting direction Y of the gap into which the upstream member and the downstream member are inserted is set substantially equal to the dimension in the intersecting direction Y of the internal space of the passage structure.

  The dimension in the vertical direction Z of the upstream member and the downstream member is set larger than the dimension in the vertical direction Z of the passage structure, and the upstream member and the downstream member are displaced upward to close the passage structure. In the state, it projects downward from the passage structure. A waterproof member having rubber elasticity, for example, is disposed below a portion that defines a gap into which the upstream member and the downstream member are inserted, and the waterproof member is always in contact with the upstream member and the downstream member. When the upstream member and the downstream member are displaced up and down for closing and releasing the blocking, the waterproof member slides with respect to the upstream member and the downstream member. In the waterproof member, liquid is stored in the internal space of the passage structure, and even if the upstream member and the downstream member are displaced up and down, the liquid in the internal space of the passage structure leaks below the passage structure. To prevent.

  A drive unit housing is disposed below the passage structure. A drive part housing | casing forms the sealed space with the bottom part of a storage tank, and the plate-shaped member which comprises the bottom plate of a channel | path structure. The drive unit housing is formed in a rectangular parallelepiped shape, and includes a flat plate portion having a horizontal direction X as a thickness direction, a flat plate portion having a cross direction Y as a thickness direction, and a flat plate portion forming a bottom plate. Composed. The dimension and position of the drive unit housing in one horizontal direction X is determined from the part of the bottom part vertically below Z2 from the opening of the storage tank and the plate-like member that forms the bottom plate of the passage structure in one horizontal direction X1 from the predetermined position. It corresponds to a range up to a part. The dimension and position of the drive unit housing in the cross direction Y correspond to the entire range of the cross direction Y of the storage tank and the passage structure.

  The internal space of the drive unit housing includes four air cylinders 37, a part of the upstream member and the downstream member positioned below the plate-like member that forms the bottom plate of the passage structure, and the waterproof member. A through hole for inserting a pipe (not shown) for supplying air pressure to the air cylinder 37 is formed in a part of the drive unit housing, and the through hole is airtight with the pipe inserted through the through hole. Is shielded. Since the drive unit housing, a part of the bottom of the storage tank, and a part of the bottom plate of the passage structure form a sealed internal space, the automatic fish feeding apparatus 10A is arranged in the aquaculture tank 40 and driven. Even in a state where part or all of the part housing is disposed in the liquid in the culture tank 40 and the feed tank and the liquid are filled in the internal space of the storage tank and the passage structure, the liquid is contained in the internal space of the drive part housing. Is prevented from entering.

  The drive unit 18 </ b> A includes the four air cylinders 37 and a switching unit that can switch supply and shutoff of air pressure to each air cylinder 37. The switching unit is connected to the control unit 35. The control unit 35 is connected to the breeding fish detection sensor 17 and controls the switching unit according to the detection signal from the breeding fish detection sensor 17. The control unit 35 causes the switching unit to switch between supplying and shutting off the air pressure to each air cylinder 37.

  The breeding fish detection sensor 17 is installed below the drive unit housing and fixed to the drive unit housing. The breeding fish detection sensor 17 images a predetermined area close to the storage unit main body 12A, and detects the presence or absence of the breeding fish 11 in the imaged area. The predetermined region may be a region separated from the drive unit housing in a range of 30 cm to 1 m, and may be a range of 30 cm to 40 cm.

  When the breeding fish 11 is not located within the range detected by the breeding fish detection sensor 17, the downstream member closes the passage structure by the control of the drive unit 18A by the control unit 35, and the upstream member temporarily forms the passage structure. The body is kept in a released state. Next, the passage structure is closed by the upstream member. In this state, preparations for releasing feed and liquid are completed. When the domestic fish 11 enters the range detected by the domestic fish detection sensor 17, the domestic fish detection sensor 17 detects the domestic fish 11 and outputs a detection signal. The detection signal is input to the control unit 35. The control unit 35 that has received the detection signal controls the drive unit 18A, and the drive unit 18A releases the blockage of the passage structure by the downstream member. As a result, feed and liquid stored between the downstream member and the upstream member are released.

  After the release of feed and liquid, the passage member is closed by the downstream member, and then the passage member is closed from the upstream side. Thereby, the feed and liquid stored in the storage tank are stored between the downstream member and the upstream member, and preparation for release of the feed and liquid is completed. Even if the breeding fish detection sensor 17 detects the breeding fish 11 after the release is completed and before the preparation for the release is completed, the release is not performed and the breeding fish detection sensor 17 is completed when the preparation for the release is completed. If the domestic fish 11 is located within the area detected by

  The drive unit 18A includes an air cylinder 37 that drives the closing body 14A and an air cylinder 37 that drives the closing body 14A, and an air cylinder 37 that drives the closing body 14A and air that drives the closing body 14A. The cylinder 37 can be operated separately. Accordingly, the closing member 14A can be opened after the closing member 13A is closed, and a state where both the closing member 14A and the closing member 13A have not been closed can be avoided. Therefore, it is possible to prevent feed and liquid from being undesirably released.

  Moreover, the surface of the bottom part which faces the internal space of a storage tank is formed as an inclined surface which goes below as it goes to the horizontal direction one X1 from the other horizontal direction X2. Thus, when the feed and liquid stored in the storage tank move downward by the driving force based on weight, power can be applied to the feed and liquid in a direction toward one side X1 in the horizontal direction.

<Third Embodiment>
FIG. 8 is a front view of an automatic fish feeding apparatus 10B according to the third embodiment of the present invention. FIG. 9 is a cross-sectional view of the automatic fish feeding apparatus 10B according to the third embodiment of the present invention, cut along the cutting plane line CC shown in FIG. FIG. 10 is a plan view of an automatic fish feeding apparatus 10B according to the third embodiment of the present invention.

  The automatic fish feeding apparatus 10B according to the third embodiment includes a storage unit main body 12B and a closing body 14B. The reservoir main body 12B defines the internal space from the surroundings. The internal space is a space where the feed is stored or moved together with the liquid. The closing body 14B can close the storage portion main body 12B at a predetermined position. In addition, the closing body 14B stores the feed and liquid together with the storage unit main body 12B in the closed state, and allows the feed and liquid to move to a predetermined position in the state where the closing is released.

  The reservoir main body 12B includes a peripheral wall and a bottom in which an opening is formed, and an internal space is formed by the peripheral wall and the bottom. When at least a part of the closing body 14B is separated from the portion of the peripheral wall that defines the opening, the blocking of the reservoir main body 12B is released. The reservoir main body 12B is generally formed in a rectangular parallelepiped. The peripheral wall of the reservoir main body 12B is formed from four flat plate-like portions, and an opening is formed in one of the four flat plate-like portions. The reservoir main body 12B is arranged with the opening directed in the horizontal direction X1.

  The closing body 14B is disposed at the end of the reservoir main body 12B with respect to the direction in which the feed and liquid move, and is angularly displaceable. The end of the reservoir main body 12B where the closing body 14B is disposed is an end on the downstream side in the moving direction of the feed and liquid that moves in the internal space of the reservoir main body 12B, and in the present embodiment, is near the opening. . The closing body 14B can be angularly displaced, and the axis of angular displacement is disposed in the vicinity of the bottom of the reservoir main body 12B. The blockage of the reservoir by the closing body 14B and the release of the closing are switched by the angular displacement of the closing body 14B around the axis of angular displacement. The axis of angular displacement is set to extend in the intersecting direction Y.

  The closing body 14B further includes a weight provided below the axis of angular displacement. In a natural state in which the external force applied to the blocking portion is released, the weight is positioned below the axis of angular displacement. With the weight positioned below the axis of angular displacement, the blocking portion takes a standing posture. If the external force applied to the closing body 14B is released, the closing body 14B closes the storage portion main body 12B with a portion above the axis of angular displacement. Further, when the closing body 14B is angularly displaced around the axis of angular displacement, the storage unit body 12B is switched between closing and releasing the closing.

  The drive unit 18B can switch between closing of the closing body 14B with respect to the storage unit main body 12B and release of the closing. The drive unit 18B has a convex portion that switches between closing and releasing the blocking body 14B. In a state where the feed and the liquid are stored in the internal space of the storage unit main body 12B, the feed and the liquid apply an external force to the closing body 14B from the inside of the opening toward the outside of the storage unit. When the convex portion of the driving unit 18B releases the blockage by the blocking body 14B, the blocking body 14B is angularly displaced by the external force applied to the blocking body 14B by the feed and the liquid, and the feed and liquid are released from the storage unit main body 12B. In the state where the release of feed and liquid is completed and the load of the feed and liquid on the closing body 14B is released from the internal space, the closing body 14B takes a natural state. The occlusion body 14B in the natural state can be occluded by the convex portion of the drive unit 18B.

  The automatic fish feeding apparatus 10 </ b> B includes a plurality of storage unit main bodies 12 </ b> B, a plurality of closed bodies 14 </ b> B, and a breeding fish detection sensor 17. The feed shall be live fish. The plurality of closing bodies 14B are provided corresponding to the number of the reservoir main bodies 12B. The breeding fish detection sensor 17 detects the number of individuals of the breeding fish 11 adjacent to the storage unit main body 12B, and outputs a detection signal corresponding to the detected number of individuals of the breeding fish 11. The drive unit 18B can individually switch between closing and release of the plurality of closing bodies 14B. Moreover, the drive part 18B cancels | releases obstruction | occlusion of the predetermined number of obstruction bodies 14B among several obstruction bodies 14B by a detection signal being input within the predetermined time.

  Each storage part main body 12B is formed with a transparent member, and can confirm the number of individuals of feed fish stored in the storage part main body 12B from the outside. In the present embodiment, three storage unit main bodies 12B are arranged in the cross direction Y. In another embodiment, the number of the reservoir main bodies 12B arranged in the cross direction Y may be two, for example, or may be four or more.

  According to the third embodiment, the closing body 14B is angularly displaceable, and the axis of the angular displacement is disposed in the vicinity of the bottom of the reservoir main body 12B. The blockage of the reservoir by the closing body 14B and the release of the closing are switched by the angular displacement of the closing body 14B around the axis of angular displacement. As a result, the feed and liquid located in the internal space of the reservoir main body 12B apply a load to the closure 14B, thereby further opening the closure 14B with respect to the reservoir main body 12B, thereby facilitating the release of feed and liquid. Can be. Therefore, the driving force required for the change in the posture of the closing body 14B when the closing is released can be reduced as compared with the case where the load of feed and liquid is not used for releasing the closing of the closing body 14B. Moreover, the time concerning discharge | release of a feed and a liquid can be shortened.

  According to the third embodiment, the closing body 14B further includes a weight provided below the axis of angular displacement. In a natural state in which the external force applied to the blocking portion is released, the blocking portion takes a posture in which the weight is erected with the weight positioned below the axis of angular displacement. In the state where the external force applied to the closing body 14B is released, the closing body 14B is closed by the portion above the axis of angular displacement. Thus, after the feed and liquid are released, the closing body 14B can take a posture close to the closed state by the driving force based on the weight of the weight.

  Moreover, the drive part 18B has a convex part, and the blocking body 14B can be closed by the convex part of the drive part 18B in a state where the load of feed and liquid from the internal space is released with respect to the closed body 14B. . Thereby, since the drive part 18B makes the obstruction body 14B obstruct | occlude the storage part main body 12B, the operation | movement given to the obstruction body 14B can be made small.

  Moreover, according to 3rd Embodiment, the domesticated fish detection sensor 17 outputs the detection signal according to the number of individuals of the domesticated fish 11 which adjoined the storage part main body 12B, and the drive part 18B receives a detection signal. Thus, the blocking of a predetermined number of the closing bodies 14B among the plurality of closing bodies 14B is released. Thereby, the amount of feed to be released can be changed according to the number of individuals of the breeding fish 11 that are close to the storage unit main body 12B. Therefore, it is possible to prevent the amount of feed given to the domestic fish 11 from being different depending on the domestic fish 11. This can increase the possibility that the domestic fish 11 will grow equally.

  Moreover, each storage part main body 12B is formed with a transparent member, and can confirm the number of individuals of feed fish stored in the storage part main body 12B from the outside. Thereby, even if the fish that is the feed may be biased upward or downward in the liquid, it becomes easy to visually confirm from the outside of the reservoir main body 12B. Therefore, it is possible to feed an equal amount of feed into each reservoir main body 12B.

  In 1st-3rd embodiment, although the automatic fish feeding apparatus was installed in the culture tank 40, in other embodiment, you may install in the aquaculture equipment provided in the sea, for example. In the first to third embodiments, the breeding fish 11 is a tuna fry, but the kind of the breeding fish is not defined in the present invention. In the first to third embodiments, the feed is a live carp juvenile, but in other embodiments, it may be a live seafood such as a squid, and in other embodiments. The feed may be an artificial feed having a density substantially the same as that of the liquid, and may be a solid feed that is widely dispersed in the liquid by being stirred in the liquid.

1 is a perspective view of an automatic fish feeding apparatus 10 according to a first embodiment of the present invention. It is a one part perspective view which drives the obstruction body 14 among the drive parts 18 in 1st Embodiment of this invention. It is a one part perspective view which drives the closure member 13 among the drive parts 18 in 1st Embodiment of this invention. It is a perspective view showing the state where automatic fish feeding device 10 concerning a 1st embodiment of the present invention was installed in cultivation tank 40. It is a perspective view of the culture tank 40 in which the automatic fish feeding apparatus 10 which concerns on 1st Embodiment of this invention is installed. It is sectional drawing of 10 A of automatic fish feeding apparatuses which concern on 2nd Embodiment of this invention. It is sectional drawing which cut | disconnected the automatic fish feeding apparatus 10A which concerns on 2nd Embodiment of this invention, and cut | disconnected by cut surface line AA shown in FIG. It is a front view of the automatic fish feeding apparatus 10B which concerns on 3rd Embodiment of this invention. It is sectional drawing which cut | disconnected the automatic fish feeding apparatus 10B which concerns on 3rd Embodiment of this invention, and cut | disconnected by the cut surface line CC shown in FIG. It is a top view of automatic fish feeding apparatus 10B concerning a 3rd embodiment of the present invention. It is a front view of the compound feed feeding apparatus 1 which is an automatic fish feeding apparatus which concerns on a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Automatic fish feeding apparatus 11 Domestic fish 12 Storage part main body 13 Occlusion member 14 Occlusion body 15 Annular part 16 Predetermined halfway position 17 Breeding fish detection sensor 18 Drive part 35 Control part 40 Culture tank

Claims (8)

A reservoir body that defines an internal space from which the feed is stored or moved together with the liquid;
A closing body capable of closing the storage body at a predetermined position,
Storing the feed and liquid together with the reservoir main body in a closed state;
An automatic fish feeding apparatus comprising: a closing body that allows the feed and liquid to move through the predetermined position in a state where the blocking is released. In the aquaculture tank where the fish are bred, a fish detection sensor for detecting a fish in a predetermined area in the vicinity of the storage unit main body and outputting a detection signal;
The automatic fish feeding apparatus according to claim 1, further comprising: a driving unit that displaces the closing body according to the detection signal and releases the blockage of the storage unit main body by the blocking body. In the space in which the closing body stores the feed and liquid together with the storage body, the closing member can close the storage body at a predetermined intermediate position in the middle of the feed and liquid movement direction. And
Storing the feed and liquid together with the reservoir main body in a closed state;
The automatic fish according to claim 1, further comprising a closing member that allows the feed and the liquid to move in a predetermined midway position along the moving direction in a state where the blocking is released. Feeding device.   The drive unit is capable of switching between closure and release of the storage unit body by the closure body and the closure member, and before the closure of the storage unit body is released, The automatic fish feeding apparatus according to claim 3, wherein the closing member closes the reservoir main body.   The automatic fish feeding apparatus according to any one of claims 1 to 4, wherein the feed is live fish and shellfish.   The automatic fish feeding apparatus according to claim 2, wherein the breeding fish detection sensor includes an infrared camera. The closing body is disposed at an end of the reservoir main body with respect to the direction of movement of the feed and liquid, and is angularly displaceable.
If the external force on the closure body is released, the reservoir body is closed by a portion located above the axis of angular displacement,
The automatic fish feeding device according to any one of claims 1 to 6, wherein the storage unit body is switched between being closed and released by being angularly displaced about an axis of the angular displacement. A plurality of the storage unit main bodies are provided,
A plurality of the blocking portions are provided corresponding to the number of the reservoir main bodies,
The breeding fish detection sensor detects the number of breeding fish close to the plurality of storage unit bodies, and outputs a detection signal according to the detected number of breeding fish,
The driving unit is capable of individually switching the blockage and release of the plurality of blockages to each blockage body, and the detection signal is input within a predetermined time, whereby the plurality of blockages The automatic fish feeding apparatus according to claim 2, wherein the blockage of a predetermined number of the blockages is released.

Images