JP6216270B2 - Mobile cultivation equipment - Google Patents

Description

  The present invention relates to a mobile cultivation apparatus capable of cultivating fruit vegetables such as vegetables and flower buds in a densely planted state.

  Conventionally, a technique for cultivating fruit vegetables and the like using a plurality of horizontally long cultivation benches is known. For example, Patent Document 1 discloses a closed-loop mobile cultivation apparatus that circulates and conveys a plurality of cultivation benches. In the mobile cultivation apparatus of Patent Document 1, a closed loop is formed by a pair of transport conveyors arranged in parallel with the transport directions opposite to each other and a pair of guide devices connecting the two transport conveyors. And the comb-shaped rod which moves a cultivation bench group to the longitudinal direction (henceforth longitudinal direction) of each guide device, the actuator for movement which moves a comb-shaped rod to the vertical direction, and the actuator for rotation which rotates a comb-shaped rod And. Each cultivation bench is circulated and conveyed in a closed loop by interlocking the vertical conveyance of each comb-shaped rod and the horizontal conveyance of each conveyance conveyor.

JP 2010-57448 A JP2013-90614A

  By the way, in the moving cultivation apparatus of patent document 1, as the drive mechanism for each comb-shaped rod, the moving actuator that moves the comb-shaped rod in the vertical direction, and the rotation actuator that rotates the comb-shaped rod. Therefore, it is understood that the structure of the drive mechanism becomes large, and the cost increases in relation to the number of parts, and there is room for improvement from the viewpoint of cost control.

  In this regard, the applicant of the present application includes, in Patent Document 2, a pair of transfer devices that move the cultivation bench on each of the transfer conveyors toward the guide device on the downstream side of the transfer, and driving the transfer devices Has disclosed the structure of a mobile cultivation device that conveys and circulates a plurality of cultivation benches on each guide device in a ball shape. According to the configuration of Patent Document 2, the drive mechanism necessary for transporting a plurality of cultivation benches in the vertical direction on each guide device is only required by both transfer devices, and a plurality of cultivations are reliably made with an extremely simple structure. There is an advantage that the bench can be circulated and the cost can be greatly reduced.

  The present invention is an extension of the prior invention by the applicant of the present application, and has been made as a technical problem to further reduce costs.

According to the first aspect of the present invention, a closed loop is formed by a pair of transport conveyors arranged in parallel with the transport directions opposite to each other, and a pair of guide devices connecting between the two transport conveyors, and is on each of the transport conveyors. a pair of transfer device that moves toward the guiding device of the conveyor downstream cultivation bench 循 cultivation bench before Kifuku said number of the driving of each transfer device and the respective conveyor before Symbol closed loop In the mobile cultivation apparatus to be circulated, each cultivation bench includes a cultivation tank for growing fruit vegetables and a housing case on which the cultivation tank is placed, and a bottom surface of the housing case is formed by a molded plate having a concave-convex shape. The concave portion formed on the bottom surface of the housing case extends in a groove shape along the longitudinal direction of the housing case, and at least the bottom surface of the housing case extends from one end in the longitudinal direction. The other end side Toward are inclined, forms the discharge hole to the inclined direction downstream side of the recessed portion, it is that are enabled water to said recessed portion is fitted to the plug to the discharge hole.

Invention of Claim 2 is comprised in the mobile cultivation apparatus of Claim 1 so that the several cultivation bench on each said guidance apparatus may be conveyed in a ball shape by the drive of each said transfer apparatus. It is.

According to the invention of this application, a closed loop is formed by a pair of transport conveyors arranged in parallel with the transport directions opposite to each other, and a pair of guide devices connecting the two transport conveyors, and the cultivation bench on each of the transport conveyors the a pair of transfer device that moves towards the guide device of the transport downstream side, thereby circulating in the previous SL closed loop cultivation bench before Kifuku said number of the driving of each transfer device and the respective conveyor In the mobile cultivation apparatus, each of the cultivation benches includes a cultivation tank for cultivating fruit and vegetables and a housing case for placing the cultivation tank, and a bottom surface of the housing case is configured by a molded plate having a concavo-convex shape. The recess formed in the bottom surface of the housing case extends in a groove shape along the longitudinal direction of the housing case, and at least the bottom surface of the housing case is at the other end from the one end side in the longitudinal direction. ~ side Toward are inclined, forms the discharge hole to the inclined direction downstream side of the recessed portion, since enabled water to said recessed portion is fitted to the plug to the discharge hole, from the culture tank The shape of the cross-sectional unevenness of the molded plate can be used as a bowl for collecting excess water and chemicals to be discharged, and there is no need to separately provide a collection-only bowl in the housing case. Therefore, the manufacturing cost of each said cultivation bench can be suppressed. In particular, if a commercially available molded plate such as a deck plate is used for the bottom surface of the housing, the cost reduction effect is high.

It is a schematic plan view of the mobile cultivation apparatus in an embodiment. It is a top view of a conveyance conveyor. It is a top view of a transfer apparatus. It is a perspective view of a transfer apparatus. It is a partially cutaway perspective view of an engaging claw body and an engagement / disengagement actuator. It is explanatory drawing of a cultivation bench, (a) is side sectional drawing, (b) is front sectional drawing. It is a side view which shows the state before the engagement by a transfer apparatus. It is a side view which shows the engagement state of a transfer apparatus. It is a side view which shows the drawing completion state of a transfer apparatus. It is a side view which shows the engagement cancellation | release state of a transfer apparatus. It is a functional block diagram of a pneumatic circuit and a controller.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  First, the schematic structure of the mobile cultivation apparatus 1 will be described with reference to FIGS. 1 and 2. In the following description, when using a term indicating a specific direction or position as necessary (for example, “left / right”, “up / down”, etc.), the direction perpendicular to the paper surface in FIG. Alternatively, the vertical direction (may be referred to as the column direction), and the left-right direction on the paper is the left-right direction or the horizontal direction (may be referred to as the row direction). These terms are used for convenience of explanation, and do not limit the technical scope of the present invention.

  In the embodiment, the vertical direction and the horizontal direction are both parallel to the horizontal plane (ground) (perpendicular to the gravitational direction), but the present invention is not limited to this, such as strawberry and spinach. The vertical direction and the horizontal direction may be slightly inclined with respect to the horizontal plane so long as they do not hinder the cultivation of fruit vegetables and the like.

  As shown in FIG.1 and FIG.2, the mobile cultivation apparatus 1 of embodiment is a closed loop-shaped thing which circulates and conveys the several cultivation bench 10 which grows fruit vegetables, such as a strawberry and spinach. In this case, the mobile cultivation apparatus 1 has a pair of transport conveyors 40A and 40B arranged in parallel with the transport directions opposite to each other, and the other transport conveyor 40B (40A) from the transport downstream side of one transport conveyor 40A (40B). ) And a pair of guide devices 20A (20B) for guiding each cultivation bench 10 to the transport upstream side, and a pair of moving the cultivation bench 10 on the transport conveyors 40A and 40B toward the guide devices 20A and 20B on the transport downstream side. Transfer equipment 21A, 21B is provided. A pair of conveyance conveyors 40A and 40B and a pair of guide devices 20A and 20B are configured in a closed loop shape for circulating and conveying the plurality of cultivation benches 10.

  The pair of transport conveyors 40A and 40B are arranged in parallel with a space in the front-rear direction (vertical direction). Each of the cultivation benches 10 is configured to be conveyed in opposite conveyance directions (lateral directions). The pair of guide devices 20A and 20B are arranged in parallel with a space in the left-right direction (lateral direction), and are configured to guide the cultivation bench 10 in directions opposite to each other (vertical direction). Has been.

  The left half of the front conveyor 40A is positioned on the front side of the first guide device 20A, and the right half of the front conveyor 40A is positioned on the front side of the second guide device 20B. The left half of the back side conveyor 40B is located on the back side of the first guide device 20A, and the right half of the back side conveyor 40B is located on the back side of the second guide device 20B. Each of the conveyors 40A and 40B is configured to be able to deliver the cultivation bench 10 to and from the guide devices 20A and 20B. Each cultivation bench 10 is circulated and conveyed clockwise in a plan view of FIG. 1 in the order of the front-side transport conveyor 40A → the first guide device 20A → the back-side transport conveyor 40B → the second guide device 20B → the front-side transport conveyor 40A. . Needless to say, the circulating conveyance direction may be counterclockwise in a plan view of FIG.

  The detailed structure of the cultivation bench 10 will be described with reference to FIG. The cultivation bench 10 includes a planter 2 that is an upward-opening horizontally long box-shaped cultivation tank, and an upward-opening horizontally-long box-shaped housing housing 11 that houses the planter 2. The planter 2 accommodates soil for cultivation, and the bottom surface thereof has a discharge hole 2b for discharging excess water and chemicals to the outside (see FIG. 6 (a)). A total of four sets of two wheels 13 as sliding bodies are attached to the lower surface side of the housing 11. A total of four sets of wheels 13 are arranged side by side in the longitudinal direction (lateral direction) of the cultivation bench 10 (accommodating housing 11) at intervals according to the arrangement width of the guide rail 35 of each guide device 20A (20B). . In addition, you may provide a sliding body in each guide apparatus 20A (20B) side. Further, the sliding body is not limited to the wheel 13 but may be another structure such as a roller, a slider, or a roller.

  As shown in FIGS. 6 (a) and 6 (b), the bottom surface of the housing case 11 is constituted by a molding plate 14 having an uneven cross-sectional shape. The formed plate 14 according to the embodiment is a commercially available deck plate formed by bending a steel plate, for example, and has an uneven cross-section formed by upper and lower flanges 14a and 14b extending parallel to each other and a web 14c as an inclined portion connecting the upper and lower flanges. It has become. The upper and lower flanges 14a and 14b are connected via a web 14c. The upper and lower flanges 14 a and 14 b and the web 14 c all extend long along the longitudinal direction (lateral direction) of the housing 11.

  In a state where the planter 2 is housed in the housing 11, the outer bottom surface side of the planter 2 is in contact with and supported by the upper flange 14 a of the molding plate 14. The lower flange 14b and the webs 14c on both longitudinal sides thereof form a recessed portion 15 that is recessed downward. As is apparent from the shapes of the lower flange 14 b and the web 14 c, the recess 15 extends in a groove shape along the longitudinal direction of the housing 11. Then, at least the molding plate 14 which is the bottom surface of the housing 11 is inclined from one end side in the longitudinal direction toward the other end side. A discharge hole 16 penetrating vertically is formed on the downstream side in the inclination direction of the recess 15, that is, on the downstream side in the inclination direction of the lower flange 14 b. In a state where the cultivation benches 10 are placed on the guide devices 20A and 20B, the recovery baskets 30A and 30B (the drawing) in which the discharge holes 16 of the lower flange 14b extend along the longitudinal direction (vertical direction) of the guide devices 20A and 20B. 1). The water and chemicals collected in the recess 15 of each cultivation bench 10 are collected and collected by the collection baskets 30A and 30B through the discharge holes 16.

  The recessed portion 15 collects excess water and chemicals discharged from the discharge hole 2b on the lower surface of the planter 2. That is, the cross-sectional concavo-convex shape of the molded plate 14 can be diverted as a bowl for collecting excess water and chemicals from the planter 2. For this reason, it is not necessary to separately provide a collection-only basket in the housing case 11, and the manufacturing cost of each cultivation bench 10 can be suppressed. In particular, if a commercially available molded plate 14 such as a deck plate is used for the bottom surface of the housing 11, the cost reduction effect is high.

  If the stopper 17 is fitted in the discharge hole 16 of the lower flange 14b to close the discharge hole 16, the water can be stored in the recess 15. When water is stored in the dent 15, water can be supplied from the bottom side of the planter 2 to the soil for cultivation in the planter 2 through the discharge holes 2 b. For this reason, even if it falls into the state where circulation conveyance of each cultivation bench 10 becomes impossible due to troubles, such as a power failure or an unexpected failure, if it stores in dent part 15, it can supply water from the bottom side of planter 2 until restoration. . For this reason, even if an operator does not water each cultivation bench 10 manually, drying of the cultivation soil in the planter 2 can be prevented, and the growth of the strain can be maintained in a healthy state. In addition, the physical burden on the operator can be reduced.

  An IC tag (not shown) that stores various types of information such as fruit vegetables grown on the cultivation bench 10 is provided on the lower peripheral center side of the housing 11. The use of IC tags can improve the traceability of fruits and vegetables.

  A contact frame 19 formed in a U shape in plan view is provided on one longitudinal side of the housing 11. The left and right vertical pipe portions 19b of the contact frame 19 are fixed to one longitudinal side portion of the housing 11 by welding or the like. The horizontal pipe portion 19a of the contact frame 19 can be brought into contact with the other longitudinal side portion of the cultivation bench 10 (accommodating housing 11) on either one of the front and rear sides in the transport direction on each guide device 20A, 20B. . In a state where the horizontal pipe portion 19a of the contact frame 19 is in contact with the adjacent cultivation bench 10, an appropriate interval (in the longitudinal direction) between the adjacent cultivation benches 10 along the longitudinal direction (vertical direction) of each guide device 20A, 20B ( In the embodiment, about 500 mm) is opened.

  In addition, if the contact frame 19 is configured to be detachable (changeable) or adjustable in length, the arrangement interval between the adjacent cultivation benches 10 may be changed to increase or reduce the cultivation benches 10. It is convenient to increase or decrease the cultivation bench 10 depending on the type and variety of fruits and vegetables. The contact frame 19 is not limited to the illustrated structure. It protrudes from each cultivation bench 10 so that it can open a space | interval suitably along the longitudinal direction (vertical direction) of each guide apparatus 20A, 20B between the adjacent cultivation bench 10 in the state contact | abutted to the adjacent cultivation bench 10. FIG. Any structure can be used.

  Next, the detailed structures of the conveyors 40A and 40B and the guide devices 20A and 20B will be described with reference to FIGS. As described above, the pair of transport conveyors 40A and 40B and the pair of guide devices 20A and 20B are configured in a closed loop to circulate and transport the plurality of cultivation benches 10.

  The basic structure of both conveyors 40A and 40B is the same. Each conveyor 40A (40B) is provided with two horizontally long conveyor frames 47 supported by a plurality of legs. A pair of drive sprockets 42 and a pair of driven sprockets 43 are rotatably supported between the left and right ends of both conveyor frames 47. Between the two conveyor frames 47, two substantially parallel conveyor chains 41 are arranged via drive and driven sprockets 42 and 43. The conveyor chain 41 is wound around driving and driven sprockets 42 and 43. A conveyor motor 45A (45B) is connected to the drive shaft of the drive sprocket 42 via a chain and a sprocket transmission system so that power can be transmitted, and the two substantially parallel conveyor chains 41 are synchronized by the conveyor motor 45A (45B). Are configured to rotate in the same direction.

  On both conveyor chains 41, mounting plates 46 on which the wheels 13 of the cultivation bench 10 delivered from each guide device 20A (20B) are placed are attached at appropriate intervals. In a state where each wheel 13 of the cultivation bench 10 is placed on the corresponding placement plate 46, the conveyance motor 45 rotates the pair of conveyor chains 41 so that each conveyance conveyor 40A (40B) moves the cultivation bench 10 sideways. Transport in the direction.

  In the embodiment, a near-side space (in particular, a near-side space near the second guide device 20B) of the near-side transport conveyor 40A is set as a worker's work space. The worker can perform various operations (for example, harvesting operation, weeding operation, pruning operation, planter 2 replacement operation, etc.) in the operation space. Moreover, the irrigation apparatus 31 which spreads water toward the cultivation bench 10 conveyed by the horizontal direction by each conveyance conveyor 40A (40B) is arrange | positioned in the longitudinal middle part of both conveyance conveyors 40A and 40B.

  Furthermore, the control apparatus 32 (chemical solution spraying apparatus) is arrange | positioned in the position which is the furthest away from the work space in the mobile cultivation apparatus 1, ie, the back side conveyor 40B side. The control device 32 is for spraying a control agent or a chemical solution toward the cultivation bench 10 that is transported in the lateral direction by the back-side transport conveyor 40B. The control apparatus 32 of embodiment is arrange | positioned in the longitudinal middle part of the back | side conveyance conveyor 40B. Therefore, it is excellent at the point which can prevent reliably that a control agent and a chemical | medical solution adhere to the worker in a work space.

  On the other hand, the basic structure of both guide devices 20A and 20B is the same. Each of the guide devices 20A and 20B includes a plurality of guide rails 35 (four in the embodiment) on which the frame 13 of the cultivation bench 10 travels. The guide rail 35 group is arranged at intervals in the left-right direction (lateral direction), and is supported by a framework composed of a large number of columns and horizontal frames. Each guide rail 35 is formed in a V-shape that is bent upward in the front-rear direction (longitudinal direction) and opened upward as viewed from the longitudinal direction. Such a guide rail 35 having a V-shaped cross section can easily guide the plurality of cultivation benches 10 to the respective conveyors 40A (40B) without removing the wheels 13.

  In the lower part of the transport upstream side of each guide device 20A (20B), the cultivation bench 10 moved to the transport downstream side of each transport conveyor 40A (40B) is directed vertically toward the guide device 20A (20B) facing it. As a means for conveying, a transfer device 21A (21B) is provided. In the embodiment, in order to circulate and convey the cultivation bench 10 in a clockwise direction in plan view in FIG. 1, the feeding side transfer device 21 </ b> A is provided in the lower portion on the near side of the first guide device 20 </ b> A, and the lower portion on the back side of the second guide device 20 </ b> B. The return-side transfer device 21B is disposed respectively. Then, the return side transfer device 21B is placed on the lower side on the back side of the first guide device 20A, and the lower side on the near side of the second guide device 20B so as to be able to cope with the circulating conveyance in the counterclockwise direction in plan view of FIG. 21 A of sending side transfer apparatuses are each arrange | positioned. That is, the transfer devices 21A and 21B that are in a diagonal relationship with each other in the plan view of FIG.

  In the following, for convenience of explanation, each transfer device 21A (21B) corresponding to the circular conveyance in a plan view of FIG. 1 will be described as an example. The basic structure of each transfer device 21A (21B) is the same. As shown in FIGS. 3 and 4, each transfer device 21 </ b> A (21 </ b> B) includes a pair of engaging claws 51 that can be engaged and disengaged from below with the cultivation bench 10 on the corresponding transport conveyor 40 </ b> A (40 </ b> B), A lifting electromagnetic solenoid 52 as an engaging / disengaging actuator for engaging / disengaging the engaging claw body 51 with the cultivation bench 10 and a reciprocating actuator for reciprocating both engaging claw bodies 51 in the vertical direction along the guide device 20A (20B). The air cylinder 53 is provided.

  In the embodiment, a pair of front and rear beam frames 55 extending in the lateral direction are bolted to the upstream side of conveyance of the pair of horizontal frames 54 that are the framework of each guide device 20A (20B). A cylinder mount 56 is fixed to both beam frames 55 by welding or the like. On the cylinder mount 56, an air cylinder 53 is provided in a state where the piston rod 57 is positioned away from the transport downstream side of each transport conveyor 40A (40B). Each horizontal frame 54 is positioned below the inner two of the four guide rails 35.

  Round bar-like slide bars 58 extending in the vertical direction are arranged on both the left and right sides of the air cylinder 53. In this case, the base end sides of the horizontal beam brackets 59 (four in the embodiment) projecting outward in the left-right direction are fixed to the front and rear side ends of the cylinder mount 56. A bar support plate 60 is erected on the front end side of each horizontal rail bracket 59. Front and rear end portions of one of the left and right slide bars 58 are fixed to a pair of bar support plates 60 on one side of the left and right sides of the air cylinder 53, and a pair of bar support plates 60 on the other side of the left and right sides The front and rear ends of the slide bar 58 are fixed. Both slide bars 58 are arranged in parallel in the vertical direction.

  A slider 61 (see FIGS. 7 to 10) is slidably fitted to each slide bar 58. A flat plate-shaped moving plate 62 is attached to the upper surface side of both sliders 61. A portion between the sliders 61 on the lower surface side of the moving plate 62 is connected to the distal end side of the piston rod 57 in the air cylinder 53 via a connecting rod 63. Accordingly, the moving plate 62 is configured to reciprocate in the vertical direction along the slide bars 58 by the expansion and contraction of the piston rod 57 in the air cylinder 53.

  Engaging claw bodies 51 are arranged on the left and right ends of the upper surface of the moving plate 62 so as to be vertically rotatable. A shaft support 64 is erected on the left and right corners of the upper surface of the moving plate 62 far from the downstream side of the conveyors 40A (40B). The base end side of the main body arm 65 in the engaging claw body 51 is pivotally supported by the pivotal support member 64 via the pivotal support pin shaft 66. The main body arm 65 of the engaging claw body 51 extends so as to approach the transport downstream side of each transport conveyor 40A (40B). On the front end side of the main body arm 65, a claw portion 67 that can be engaged and disengaged is provided on the outer surface of the recessed portion 15 of the cultivation bench 10 on each conveyor 40A (40B).

  The claw portions 67 of the both engaging claw bodies 51 are positioned above the conveyance downstream side of each conveyance conveyor 40A (40B) with the piston rod 57 of the air cylinder 53 shortened, and each conveyance conveyor 40A (40B). And between the outer surface of the dent 15 of the cultivation bench 10. In a state where the piston rod 57 of the air cylinder 53 is extended, the claw portions 67 of the both engagement claw bodies 51 are moved away from the conveyance downstream side of each conveyance conveyor 40A (40B). Each transfer device 21A (21B) holds the piston rod 57 of the air cylinder 53 extended in a standby state (which may be referred to as an initial state) in which the cultivation bench 10 is not conveyed in the vertical direction. This is because the claw portions 67 of both engaging claw bodies 51 do not interfere with the cultivation bench 10 that is in the middle of conveyance on each conveyance conveyor 40A (40B) (does not get caught) of each conveyance conveyor 40A (40B). This is to keep away from the downstream side of the conveyance.

  As shown in FIG. 5, lift electromagnetic solenoids 52 are provided at the left and right corner portions of the lower surface of the moving plate 62 that are closer to the transport downstream side of each transport conveyor 40A (40B). The lifting rod 68 of each lifting electromagnetic solenoid 52 protrudes upward and passes through the moving plate 62. The tip end side of each lifting rod 68 is connected to the midway portion of the main body arm 65 in the corresponding engaging claw body 51. Each engagement claw body 51 is configured to rotate up and down around the pivot pin shaft 66 by the up and down movement of the up and down rod 68 in the corresponding up and down electromagnetic solenoid 52. That is, by engaging the engaging claw bodies 51 up and down, the claw portion 67 is engaged with the outer surface of the recessed portion 15 of the cultivation bench 10 on each conveyor 40A (40B), or the outer surface of the recessed portion 15 and the claw portion 67. Or disengagement.

  When the cultivation bench 10 moved to the conveyance downstream side of one conveyance conveyor 40A (40B) is transferred to the guide device 20A (20B) opposed to this, the piston of the air cylinder 53 in the one transfer device 21A (21B). The rod 57 is shortened, and the claw portions 67 of the both engaging claw bodies 51 are inserted between the transport conveyors 40A (40B) and the outer surface of the recessed portion 15 of the cultivation bench 10 (see FIG. 7). Next, the lifting rod 68 of both lifting electromagnetic solenoids 52 is moved up to rotate both engaging claws 51 upward, and the claw portions 67 of both engaging claws 51 are moved downward on the outer surface of the recessed portion 15 of the cultivation bench 10. (See FIG. 8).

  Then, the piston rod 57 of each air cylinder 53 is extended in a state where the engagement between the outer surface of the recessed portion 15 and both the claw portions 67 is maintained, and the cultivation bench 10 on one transport conveyor 40A (40B) is guided. Pulling it toward 20A (20B), the longitudinal other side of the cultivation bench 10 that was on the side of each one of the conveyors 40A (40B) is brought into contact with the abutment frame 19 of the cultivation bench 10 on the guide device 20A (20B) side ( It is made to contact | abut to the horizontal pipe part 19a (refer FIG. 9). As a result, the plurality of cultivation benches 10 on the guide device 20A (20B) collide one after another in a ball shape, and the cultivation bench 10 on the most downstream side of the guide device 20A (20B) becomes the other transport conveyor 40B (40A). ) To the upstream side of conveyance. That is, after both the engaging claw bodies 51 are engaged with the cultivation bench 10 by driving both the lifting electromagnetic solenoids 52, the both guiding claw bodies 51 are conveyed downstream by the guide device 20A (20B) by driving the air cylinder 53. The plurality of cultivation benches 10 on the guide device 20A (20B) are conveyed in a ball shape by being moved toward the direction.

  Thereafter, the lifting rod 68 of both lifting electromagnetic solenoids 52 is moved downward to rotate both engaging claws 51 downward, and the engagement between the outer surface of the recessed portion 15 of the cultivation bench 10 and the claw portions 67 of both engaging claws 51. (See FIG. 10). In addition, in embodiment, when the adjacent cultivation bench 10 is conveyed in a ball shape, on the 1st guide apparatus 20A, the back side surface of the cultivation bench 10 on the conveyance upstream is the contact frame of the cultivation bench 10 on the conveyance downstream side. 19 (lateral pipe portion 19a). On the 2nd guide apparatus 20B, the contact frame 19 (horizontal pipe part 19a) of the cultivation bench 10 of the conveyance upstream contacts the back | inner side surface of the cultivation bench 10 of conveyance downstream.

  A stopper member 23 that regulates the vertical conveyance (collision conveyance) of the cultivation bench 10 delivered from the most downstream side of each guide device 20A (20B) is detachable on the conveyance upstream side of each conveyance conveyor 40A (40B). It is attached.

  In the embodiment, each cultivation bench 10 is placed on the mobile cultivation device 1 (each conveyance conveyor 40A (40B) and each guide device 20A (20B)) in a posture where the contact frame 19 faces the front conveyance conveyor 40A. For this reason, the stopper member 23 of the front-side transport conveyor 40A is attached in a posture that protrudes to the front side in a plan view because of the contact with the contact frame 19. The stopper member 23 of the back side transfer conveyor 40B is attached in a posture overlapping with the back side transfer conveyor 40B in a plan view because of contact with not the contact frame 19 but the other longitudinal side of the cultivation bench 10.

  Further, for the purpose of corresponding to both the clockwise and counterclockwise circulatory conveyances in the plan view of FIG. 1, stopper members 23 are arranged not only on the conveyance upstream side but also on the conveyance downstream side of each conveyance conveyor 40A (40B). ing. In the embodiment, a total of four stopper members 23 are arranged, two on the conveyance upstream side of each conveyance conveyor 40A (40B) and two on the conveyance downstream side.

  When the cultivation bench 10 on the most downstream side of each guide device 20A (20B) is transferred to the other conveyance conveyor 40B (40A) by ball crush conveyance, the rear side surface of the cultivation bench 10 on the most downstream side or the contact frame 19 (horizontal) The pipe portion 19a) comes into contact with the stopper member 23 and stops on the upstream side of conveyance of the other conveyance conveyor 40B (40A) in a state where the wheels 13 of the cultivation bench 10 on the most downstream side are placed on the placement plate 46. . That is, it can be surely transferred to a fixed position on each conveyor 40B (40A). Thereafter, the cultivation bench 10 is moved to the conveyance downstream side by driving each conveyance conveyor 40B (40A). At that time, the conveyance bench 10 is conveyed by the presence of the stopper members 23 on the conveyance upstream side and the conveyance downstream side. The cultivation bench 10 is guided to the conveyance downstream side along the stopper member 23 while preventing the positional deviation in the vertical direction orthogonal to the conveyor 40B (40A). Therefore, the cultivation bench 10 can be smoothly conveyed in the horizontal direction in a suitable posture on each conveyance conveyor 40B (40A).

  Next, the pneumatic circuit 70 structure of the mobile cultivation apparatus 1 will be described with reference to FIG. The pneumatic circuit 70 of the mobile cultivation device 1 includes a compressor 71 that supplies high-pressure air to the air cylinder 53 and the air cylinder 53 of each transfer device 21A (21B). In addition, in FIG. 11, illustration of the air cylinder 53 of each transfer apparatus 21A (21B) with respect to the circulation conveyance counterclockwise in the plan view of FIG. 1 is omitted.

  The compressor 71 and each air cylinder 53 are connected via a 5-port 3-position switching type direction switching electromagnetic valve 72. The direction switching electromagnetic valve 72 has a pair of electromagnetic solenoids 73 electrically connected to a controller 75 as control means. The direction switching electromagnetic valve 73 includes an extension position for extending the piston rod 57 of the air cylinder 53 by an excitation of each electromagnetic solenoid 73 based on a command from the controller 75, a stop position for stopping the operation of the piston rod 57, and a piston. The rod 57 is configured to be switched to a shortened position where the rod 57 is shortened.

  The controller 75 as a control means performs drive control of each conveyance conveyor 40A (40B) and each transfer apparatus 21A (21B) regarding the circulation conveyance of the cultivation bench 10 group. The controller 75 includes a pair of left and right electromagnetic solenoids 52 as engaging / disengaging actuators, a first motor driver 74A for the first transport motor 45A of the front transport conveyor 40A, and a second transport motor 45B for the rear transport conveyor 40B. The two-motor driver 74B and the pair of electromagnetic solenoids 73 of each direction switching electromagnetic valve 72 described above are connected.

  As is apparent from the above description and FIGS. 6A and 6B, a pair of transport conveyors 40A and 40B arranged in parallel with the transport directions opposite to each other, and a pair connecting the transport conveyors 40A and 40B. A pair of transfer devices 21A and 21B that form a closed loop with the guide devices 20A and 20B, and move the cultivation bench 10 on the transport conveyors 40A and 40B toward the guide devices 20A and 20B on the downstream side of the transport. Mobile culture in which the plurality of cultivation benches 10 on the guide devices 20A and 20B are conveyed in a ball shape by driving the transfer devices 21A and 21B, and the plurality of cultivation benches 10 are circulated in the closed loop. In the apparatus, each cultivation bench 10 includes a cultivation tank 2 for cultivating fruit and vegetables, and a housing case 11 on which the cultivation tank 2 is placed, and has an uneven cross section. Since the bottom surface of the housing case 11 is constituted by the shaped molding plate 14, the cross-sectional uneven shape of the molding plate 14 can be diverted as a bowl for collecting excess water and chemicals discharged from the cultivation tank 2, There is no need to provide a separate collection bag for the housing case 11. Therefore, the manufacturing cost of each cultivation bench 10 can be suppressed. In particular, if a commercially available molded plate 14 such as a deck plate is used for the bottom surface of the housing case 11, the cost reduction effect is high.

  The present invention is not limited to the above-described embodiment, and can be embodied in various forms. The configuration of each other part is not limited to the illustrated embodiment, and various modifications can be made without departing from the spirit of the present invention. The term “fruit vegetables” used in the present specification is used as a concept including fruit vegetables such as strawberries, leaf vegetables such as spinach, and the like.

1 Mobile cultivation device 2 Planter (cultivation tank)
2b Discharge hole 10 Cultivation bench 11 Housing case 13 Wheel (sliding body)
14 Forming plate 14a Upper flange 14b Lower flange 14c Web 15 Recess 16 Discharge hole 17 Plug 19 Contact frame 20A, 20B Guide device 21A, 21B Transfer device 40A, 40B Conveyor

Claims (2)

A closed loop is formed by a pair of transport conveyors arranged in parallel with the transport directions opposite to each other, and a pair of guide devices connecting the two transport conveyors, and the cultivation bench on each of the transport conveyors is transported on the downstream side of the transport a pair of transfer device that moves toward the guiding device, in a mobile cultivation device for circulating before Symbol closed loop cultivation bench before Kifuku said number of the driving of each transfer device and the respective conveyor,
Each of the cultivation benches includes a cultivation tank for cultivating fruit and vegetables, and a housing case on which the cultivation tank is placed, and constitutes a bottom surface of the housing case by a molded plate having a concavo-convex shape ,
The recess formed in the bottom surface of the housing case extends in a groove shape along the longitudinal direction of the housing case, and at least the bottom surface of the housing case is directed from one end side to the other end side in the longitudinal direction. Is inclined,
A discharge hole is formed on the downstream side in the inclined direction of the recess, and a stopper is fitted into the discharge hole so that water can be stored in the recess.
Mobile cultivation equipment. It is configured to convey a plurality of cultivation benches on each guide device in a ball shape by driving each transfer device,
The mobile cultivation apparatus according to claim 1.

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