JP6152118B2 - Vegetable transplanter - Google Patents

Description

  The present invention relates to a transplanter for transplanting seedlings such as rapeseed and cabbage, and in particular, a planting part is mounted via a lifting mechanism on the rear part of a riding type traveling machine body, and a tank for irrigation is mounted on the traveling machine body, The present invention relates to a vegetable transplanting machine including an irrigation device in which an irrigation discharge nozzle is disposed in the vicinity of a planting position in a planting unit.

  Conventionally, an irrigation device for a vegetable transplanter, in which a tank is arranged at the front part of a walking type traveling machine body, the water in the tank is sucked by the operation of a pump, and the water is discharged into the opening and closing claws, has become known. (See Patent Document 1).

Japanese Utility Model Publication No. 7-5312

  Conventionally, cell seedlings (or pot seedlings) are cultivated by a tray having a plurality of recesses formed vertically and horizontally, placed on a seedling stage of a walking type vegetable transplanter, and vegetable seedlings one by one from the tray while traveling Was taken out and inserted into the open / close nails, and the open / close nails were lowered to perform irrigation on the way to the farm scene, and the open / close nails were opened and planted in the farm scene. In this case, the irrigation must be discharged into the opening and closing claw, so the amount of water to be irrigated is limited, and the timing of water discharge must be accurately performed. In addition, when the leaves are growing large or the direction of water discharge is misaligned, water may not be uniformly applied to the root pot (the soil portion), resulting in poor survival.

  The present invention has been made in view of the situation as described above, and by irrigating the planting position in the field, the viability is improved, and water can be reliably irrigated even when transplanted in large quantities by a riding type vegetable transplanter. Provide vegetable transplanter.

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
In Claim 1, a planting part is mounted to the rear part of the riding type traveling part via an elevating mechanism, and is placed on the seedling table by the vertical rotation of the planting claw provided in the planting part. A planting machine for planting a cell seedling from a cell seed mat one by one with planting claws and planting it in a farm, provided with an irrigation device for irrigation at the time of planting, the irrigation device being provided in an irrigation tank and the planting part And a water discharge means for discharging water from the irrigation tank in accordance with the planting timing. The water discharge means has an irrigation pump and an irrigation nozzle, and the irrigation nozzle is arranged in front of the planting claw. And is installed to spout water near the planting position, which is the lower end position of the rotation trajectory of the planting claw, and is attached to a groover that forms a groove in a farm scene. It is arranged between the side plates.

  In Claim 2, the lower part of the rotation locus | trajectory of the said planting nail | claw is arrange | positioned between the side plates of the said groove producing device.

  In Claim 3, a planting part is mounted | worn through the raising / lowering mechanism in the rear part of the riding type traveling part, and it mounts on a seedling stand by rotation of the planting nail | claw provided in the said planting part to the up-down direction. A planting machine for planting a cell seedling from a cell seed mat one by one with planting claws and planting it in a farm, provided with an irrigation device for irrigating at the time of planting, the irrigation device being provided in an irrigation tank and the planting unit And a water discharge means for discharging water from the irrigation tank in accordance with the planting timing. The water discharge means has an irrigation pump and an irrigation nozzle, and the irrigation nozzle is configured to form a groove in a field scene. It is arrange | positioned in the back of the lowest part to which the planting nail | claw of the back of a grooved device is rotated, and discharges on the cover soil after planting from the said irrigation nozzle.

According to a fourth aspect of the present invention, the irrigation nozzle is attached to a support projecting rearward from the groove producing device.
According to a fifth aspect of the present invention, the irrigation tank is disposed on both the left and right sides of the body frame, and is disposed below the step in front of the left and right front wheels.

As effects of the present invention, the following effects can be obtained.
That is, since it comprised like Claim 1, 2, when transplanting a cell seedling mechanically, irrigation can be performed at the same time, and it will improve the survival, and it will reduce withering even if it transplants mechanically. Can be increased. In addition, the minimum amount of water required for transplantation can be discharged, there is no wasteful irrigation, and continuous transplantation in a wide field can be performed by supplying water to the irrigation tank once.

Moreover, since it comprised as Claim 3, 4, the height and water discharge position with respect to a field become constant, a irrigation state becomes constant, and the growth of the seedling after transplant can also be made substantially constant. In addition, water is irrigated after planting and covering the cell seedling, and the covered soil, root pot and surrounding soil are moistened with water and become familiar, so that the entrapment is improved.
Moreover, since it comprised like Claim 5, the space ahead of the axle shaft under the fuselage frame can be used effectively, without obstructing the front view. In addition, the front-rear balance can be kept good.

The whole side view of the vegetable transplanting machine of this invention. The whole top view of a vegetable transplanting machine. The side view partial sectional view of a planting part. The rear view of a planting part. The side view of the vegetable transplanting machine which shows the other Example of arrangement | positioning of the tank for irrigation. The side view which shows other embodiment of a planting part. The perspective view of a cell seedling mat. The side view which shows arrangement | positioning of a sensor roller. The side view which shows other embodiment of a planting nail | claw. The perspective view which shows the cell seedling mat and the seedling separation guide. The side view which shows other embodiment of the irrigation pump.

  Hereinafter, embodiments of the present invention will be described in detail. The whole structure of the vegetable transplanter 1 of this invention is demonstrated using FIG. 1, FIG. In addition, let the direction shown by the arrow F in a figure be the front in the advancing direction of the vegetable transplanter 1, and it demonstrates on the basis of the position, direction, etc. of each member described below.

  The vegetable transplanter 1 includes a traveling unit 10 and a planting unit 40, and is configured to plant the cell seedling 80 on the field by the planting unit 40 while traveling by the traveling unit 10. The planting part 40 is arrange | positioned behind the traveling part 10, and is connected with the rear part of this traveling part 10 via the raising / lowering mechanism 30 so that raising / lowering is possible. The basic configuration of the traveling unit 10 and the lifting mechanism 30 is the same as that of the rice transplanter.

  In the traveling unit 10, front wheels 12 and 12 are supported on the left and right sides of a front lower portion of the body frame 11 via a front axle case 16, and rear wheels 13 and 13 are supported on a rear portion of the body frame 11 via rear axle cases 17 and 17. Supported on both the left and right sides. An engine 14 is provided on the rear upper part of the body frame 11 and is covered with a vehicle body cover 23. A transmission case 18 is disposed in the rear part of the engine 14 at the rear upper part of the body frame 11, shifts the power from the engine 14 and transmits it to the front wheels 12 and the rear wheels 13, and transmits the power to the planting part 40 via the PTO shaft. It is configured to communicate.

  In the traveling unit 10, a driving operation unit 20 is provided on an intermediate part before and after the body frame 11. A dashboard 21 is disposed at the front of the driving operation unit 20, and a steering handle 24 is disposed at the left and right center of the dashboard 21. A driver's seat 22 is disposed behind the steering handle 24. A vehicle body cover 23 is disposed below the driver seat 22. The vehicle body cover 23 has a step 23a for getting on and off the middle part of the vehicle and the left and right sides of the dashboard 21. In the driving operation unit 20, a plurality of operation tools including a main transmission lever 25, a transmission pedal 26, and a brake pedal are arranged. With these operating tools, it is possible to perform appropriate operations on the traveling unit 10 and the planting unit 40.

  Further, an irrigation tank 62 is disposed in front of the axles 13a and 13a of the rear wheels 13 and 13 on both the left and right sides. In the present embodiment, irrigation tanks 62 and 62 are arranged on both the left and right sides of the body frame 11 below the step 23a in front of the front wheels 12 and 12. One end of a hose (not shown) communicates with the bottom of the irrigation tank 62, and the other end of the hose communicates with an inlet of an irrigation pump 64 described later. Further, in order to supply water to the irrigation tanks 62 and 62, a water supply pump 63 is disposed in the vehicle body cover 23 and linked to the engine 14, and the discharge port of the water supply pump 63 and the replenishment port of the irrigation tank 62 are connected to each other. There is a supply hose in between. One end of a water supply hose is connected to the suction port of the water supply pump 63, and a suction filter is provided at the other end of the water supply hose. The suction filter is placed in a pond or a river, and power from the engine 14 is supplied to the water supply pump 63. By transmitting and operating, the water can be sucked up and supplied to the irrigation tank 62.

  The arrangement of the irrigation tank 62 is not limited to the front lower side of the body frame 11, but as shown in FIG. 5, irrigation is performed on the body frame 11 at the rear of the driver's seat 22 (above the rear wheels 13, 13). A tank 62a can also be arranged. In addition, as shown by a chain line in FIG. 5, it is possible to dispose irrigation tanks 62b and 62b on the outer sides of the left and right rear wheels 13 and 13, respectively. In addition, the irrigation tank 62 can be disposed below the driver's seat 22 in the rice transplanter configured to dispose the engine 14 in the front dashboard 21, and the irrigation tank 62 is disposed in the planting unit 40. A configuration is also possible. And when the amount of water to be supplied is insufficient, either the left and right front part (62) of the fuselage frame 11, the rear part (62a) of the driver's seat 22, and the rear wheel 13 side part (62b), or It is also possible to provide three places. Further, the irrigation tank 62 can be supplied with water by a water supply pump 63.

  The elevating mechanism 30 includes an upper link 31, a lower link 32, and an elevating cylinder (not shown). Front ends of the upper link 31 and the lower link 32 are connected to a rotating frame, and a hydraulic cylinder is interposed between the rotating frame and the body frame 11. The raising / lowering cylinder which consists of is interposed. The planting part 40 can be moved up and down by extending and retracting the lifting cylinder. A hitch 33 on the planting part side is connected to the rear ends of the upper link 31 and the lower link 32 in the lifting mechanism 30. A planting frame 49 is attached to the rear portion of the hitch 33 so as to be tiltable left and right.

  Next, the cell seedling mat 8 to be transplanted by the vegetable transplanter 1 will be described. As shown in FIG. 7, the cell seedling mat 8 has a truncated cone or a polygonal frustum (in this embodiment, a quadrangular frustum) root pot 81 connected vertically and horizontally as a seedbed (medium), or a plate-shaped mat. Are formed in a grid shape to form root pots 81, 81, seeded in each root pot 81, 81. The whole root pots 81, 81. A cell seedling (pot seedling) 80 is obtained by cutting one vegetable seedling 82 and root pot 81. Note that the number of cell seedling mats 8 (the number of cell seedlings 80 in the left-right direction) and the number of rows (the number of cell seedlings 80 in the front-rear direction) are not limited, and the number depends on the type of vegetables, planting time, etc. Is determined.

  The planting unit 40 on which the cell seedling mat 8 is placed and planted will be described with reference to FIGS. In addition, although a 6 row planting is demonstrated in a present Example, the number of strips is not limited. The planting unit 40 includes a seedling mounting base 41 in which a plurality of cell seedling mats 8 are arranged in parallel in the left-right direction (six strips in this embodiment), and a plant for cutting out cell seedlings 80 one by one from the seedling mounting base 41 and planting them on a farm field. A planting mission case 47 for transmitting power to shift the power from the claw portion 70, shift the power from the engine 14 to drive the seedling mounting table 41 laterally, and drive the planting claw portion 70, and a planting mission case 47 From the planting transmission case 46 for transmitting the power to the planting claw 70, the planting frame 49 for supporting these, the grooving device 50 for forming a groove at the planting position, the irrigation pump 64 and the irrigation nozzle 65 A water discharging means, a soil covering plate 51 covering the soil after planting, a pressure reducing wheel 52 for pressing the soil after the soil covering, and the like.

  The planting frame 49 includes a support case 49a that extends in the horizontal direction and a planting frame 49b that stands up from the support case 49a. The support case 49a is formed in a rectangular tube shape, and a planting mission case 47 is fixed at the center of the left and right sides of the support case 49a, and a planting input shaft projects forward from the front surface of the planting mission case 47. . The planting input shaft is connected to a PTO shaft that protrudes rearward from the transmission case 18 of the traveling unit 10 through a transmission shaft, a joint, and the like. In this way, the power from the engine 14 is transmitted to the planting mission case 47 of the planting unit 40 via the mission case 18 and the PTO shaft.

  From the planting mission case 47, a seedling table lateral feed drive shaft, a vertical feed drive shaft, and a planting drive shaft are projected, and the seedling platform lateral feed drive shaft is driven to rotate, whereby the seedling platform 41 is driven to reciprocate left and right. When the seedling stage reaches the left and right ends, the vertical feed belt 41a provided on the seedling stage 41 is driven by the drive of the vertical feed drive shaft, and the cell seedling mats 8 for one row are sent downward.

  From the rear surface of the support case 49a, three planting transmission cases 46, 46, and 46 are extended in parallel in the rearward direction with appropriate intervals in the left-right direction.

  Planting claws 70, 70 including a rotating case 44 and planting claws 45, 45 are disposed on the left and right sides of the rear portion of the planting transmission case 46 that protrudes rearward from the support case 49 a. That is, the rotating cases 44 and 44 are rotatably supported on the left and right sides of the rear portion of the planting transmission case 46, and the number of the rotating cases 44 is the same as the number of planting strips, that is, six in this embodiment. . Each rotation case 44 supports two planting claws 45 and 45 on both sides in the longitudinal direction with the rotation fulcrum (rotation case drive shaft 44a) interposed therebetween. An eccentric gear train is housed in the rotating case 44, and the planting claws 45 and 45 are swung by the rotation of the rotating case 44 so that the tip locus of the planting claws 45 and 45 has a substantially vertical elliptical shape in side view. Driven. Thus, the rotary type planting claw portion 70 is constituted.

  The planting claw 70 may be a crank type instead of the rotary type. As shown in FIG. 6, the crank type planting claw portion 70 includes a planting arm 71, a planting drive shaft 72, a rotating arm 73, and a swing arm 74. One end of a rotating arm 73 is fixed on a planting drive shaft 72 protruding laterally from the rear side surface of the planting transmission case 46, and the other end of the rotating arm 73 is rotatable to the rear part of the planting arm 71. Supported. One end of a swing arm 74 is rotatably supported on the rear end of the planting arm 71, and the other end of the swing arm 74 is rotatably supported on the rear portion of the planting drive shaft 72 of the planting transmission case 46. . A planting claw 45 is attached to one end of the planting arm 71.

  In such a configuration, when the planting drive shaft 72 is rotated, the rotating arm 73 is rotated, and the tip of the planting claw 45 rotates so as to draw a locus of a vertically long substantially ellipse, and the seedling stage 41 The cell seedlings 80 are cut out one by one in synchronism with the lateral movement of the plant and planted in the field.

  The planting claw 45 may be a forced claw (extrusion planting claw) or a block claw (clamping planting claw), and the type of planting claw is not limited. That is, as shown in FIG. 3, it is provided with a cutting rod 45a and an extrusion rod 45b, cuts out the cell seedling 80 with the seedling mount 41, and extends the extrusion rod 45b when lowered to the planting position. Forced claws to be pushed out to the farm scene, or as shown in FIG. 6, a pair of left and right plate-like claws 45c are configured to be openable to the left and right. -The cell seedling 80 can be sandwiched and supported by 45c, and the plate-like claws 45c and 45c can be opened when the seedlings are lowered to the planting position to form block nails for planting the cell seedling 80 in the field scene.

  In the present embodiment, as shown in FIG. 9, a support claw 45 d is further provided on the forced claw so that the cell seedling 80 can be securely held. In other words, in the case of the embodiment of FIG. 9A, the cutting bar 45a is fixed to the front part (the seedling table 41 side) of the claw case 45k to which the planting claw 45 is attached, and the rear lower surface of the cutting bar 45a. The base of the support claw 45d is fixed to the front end, and the front end extends to the front end side so as to be along the upper surface of the extrusion rod 45b. The support claw 45d is formed by bending a rod-like body into a substantially crank shape when viewed from the side, and is disposed at the center of the left and right sides of the cutout bar 45a. However, as shown in FIG. 9B, the support claw 45d is fixed to the front lower part of the claw case 45k with the base side of the support claw 45d extended to the front end side along the lower surface of the extrusion rod 45b. It is also possible to adopt a configuration.

  In such a configuration, the cell seedling 80 is cut by the cutting bar 45a on the seedling stage 41, and at the same time, the cell seedling 80 is supported at three points with the tip of the support claw 45d, and when the cell seedling 80 is lowered to the planting position, 45b is extended and the cell seedling 80 is pushed out and planted in the field scene.

  A bevel gear and a transmission shaft are accommodated in the planting transmission case 46. The bevel gear, the transmission shaft, a unit clutch, etc. in the planting transmission case 46 are laterally moved in the left-right direction at the rear portion of the planting transmission case 46. Power is transmitted to the mounted rotation case drive shaft 44a, and the rotation case 44 is rotationally driven.

  A seedling rail 42 is horizontally mounted in the left and right horizontal direction on the front upper part of each of the planting transmission cases 46, 46, and 46, and the lower part of the seedling mounting table 41 is slidably supported in the left and right directions.

  The lower part of the planting frame 49b is attached to the upper surface of the support case 49a. A plurality of upper rails 43 are provided on the upper part of the planting frame 49b with appropriate intervals in the left-right direction, and support the upper part of the rear surface (front surface) of the seedling table 41 so as to be slidable in the left-right direction. A lower portion of the seedling table 41 is attached to the seedling rail 42 so as to be capable of reciprocating in the left-right direction. The seedling table 41 can be reciprocated in the left and right directions by the operation of a lateral feed mechanism connected to the seedling table lateral feed drive shaft.

  The seedling mounting table 41 has ribs in the front-rear direction formed on the surface in accordance with the width of the cell seedling mat 8 in the left-right direction to constitute a six-row seedling mat mounting portion. A vertical feed belt 41a is provided on each strip of the seedling mat placing portion. The vertical feed belt 41a causes the cell seedling mat 8 on the seedling table 41 to be vertically lowered by a vertical feeding mechanism (not shown) every time the seedling table 41 reaches the stroke end of the left and right reciprocating horizontal feed. I am trying to send it.

  A seedling separating guide 76 for preventing the vegetable seedling 82 of the cell seedling 80 adjacent to the left and right in the cell seedling mat 8 from being entangled at the time of planting is provided at the lower portion of the seedling mounting table 41. As shown in FIGS. 3 and 10, the seedling separation guide 76 is configured by a plate-like member, extends in the left-right direction, and is fixed horizontally over the ribs of the seedling mount 41. In the plan view, the seedling separation guide 76 has a front side and a rear side formed in a wave shape, a front part is formed in a low point and a rear part is formed in a high shape, and the height of the rear part is approximately the same as the height of the vegetable seedling 82. Yes. .. Are formed above the boundary between the cell seedling 80 and the cell seedling 80 at the lower part of the cell seedling mat 8 placed on the seedling mounting base 41. The vegetable seedling 82 will be located in the front recessed part 76b between the said front convex part 76a and the front convex part 76a. The rear lower part of the front convex portions 76a, 76a,... Is recessed forward to form the rear concave portions 76c, 76c,... The cutting rods 45a and 45a) are configured to pass through.

  Thus, when the cell seedling mat 8 is placed on the seedling table 41 and slid down to the lower seedling rail 42, the front protrusions 76a, 76a,... While entering between the stems, the surface of the root pot 81 is pressed to prevent it from rising. And the leaf part of the adjacent cell seedling 80 is separated so as to wrap the leaf part of the vegetable seedling 82 by the front recesses 76b, 76b, and the planting claw 45 passes through the rear recesses 76c, 76c,. In this way, the planting claw 45 is prevented from being damaged by hitting the leaf portion. In this state, when the planting claw 45 is rotated, the left and right cutting rods 45a and 45a enter the rear recesses 76c and 76c, and the boundary portion between the cell seedling 80 and the cell seedling 80 is cut and the side surface of the root pot 81 is sandwiched. Then, it descends while supporting the root pot 81 by the tip of the extrusion basket 45b and the support claw 45d, and one cell seedling 80 (one seedling) is released and planted in the field.

  Further, below the planting transmission case 46, a groover 50, an irrigation nozzle 65, a cover plate 51, and a pressure reducing wheel 52 are arranged in order from the front, and a sensor is disposed on the side of the planting transmission case 46 at the center of the left and right. A roller 54 is disposed.

  The groove producing device 50 is supported by the planting transmission case 46 via the link mechanism 56. As shown in FIG. 3, the link mechanism 56 is constituted by a parallel link mechanism so that the groove generator 50 can be moved up and down in parallel. That is, the link mechanism 56 includes a front link 56a and a rear link 56b. The upper portion of the front link 56a and the rear link 56b is pivotally supported by the lower portion of the planting transmission case 46, and the lower portion is pivotally supported by the upper surface of the groove generator 50. The A height adjusting lever 56c is extended from the upper part of the front link 56a (or the rear link 56b) to the front and upward so that it can be fixed at a plurality of locations, and the height of the groove forming device 50, that is, the groove forming depth is adjusted. It is configured as possible. However, as shown in FIG. 6, the link mechanism 56 may be configured such that the front link 56 a and the rear link 56 b are arranged and connected in an “X” shape in a side view.

  The grooving device 50 has a bullet-like shape in plan view, a front portion that is pointed and gradually spreads to the left and right, a ship shape in side view, and a structure that gradually falls from the front upper portion to the rear lower portion. The side plates are configured to extend in parallel and vertically to the rear, and the rear portion is opened in the vertical direction and the rear is also opened. The ship-shaped part at the front part advances into the soil as it advances forward to form a groove, and a right and left side plate secures a planting space. And the irrigation nozzle 65 is arrange | positioned between this left and right side board, and it arrange | positions so that the planting nail | claw 45 may pass between the back side boards. In other words, the lower part of the turning locus of the planting claw 45 is arranged in the rear part of the groove producing device 50, and the irrigation nozzle 65 is arranged in front of the turning locus. However, the configuration of the groove generator 50 is not limited to a ship shape. As shown in FIG. 6, the soil is such that the front portion is pointed in plan view and the front surface of the groove generator 50 is gradually lowered to the front and lower in side view. It can also be configured in a container shape.

  The irrigation nozzle 65 discharges water into the groove of the seedling planting position 9, and the water discharge position is near the bottom dead center of the planting claw 45, in other words, the rotation trajectory of the tip of the planting claw 45. It is arrange | positioned so that it may discharge in the vicinity of the planting position 9 used as the lower end position. The irrigation nozzle 65 is connected to the irrigation pump 64 via a hose, and sucks water in the irrigation tank 62 by driving the irrigation pump 64 and discharges it from the irrigation nozzle 65. The irrigation nozzle 65 is fixed to the left and right center of the middle part of the front and rear of the groove producing device 50 and is provided with a discharge port toward the lower rear.

  Moreover, the water discharge position may be immediately after covering. That is, as shown in FIG. 6, the irrigation nozzle 65 is supported by the support 53 protruding rearward from the rear side of the side plate of the groove producing device 50 so as to discharge water onto the cover soil in the vicinity of the cell seedling 80 after planting. Arranged. The water discharge position may be near the planting position 9 at the same time as planting. In this case, the irrigation nozzle 65 is disposed on the rear side of the groove producing device 50 and is irrigated to the side of the planting position. In addition, when increasing the amount of water discharge etc., it can also be set as the structure discharged | emitted in any two or three places before or after the planting position 9, or a side.

An irrigation pump 64 that sucks water from the irrigation tank 62 and pumps it to the irrigation nozzle 65 is attached to the side of the planting mission case 47 or the planting transmission case 46 to transmit power, and planting by the planting claws 45 is performed. It is intermittently driven according to the timing, and water is discharged near the planting position 9.
The irrigation pump 64 can be constituted by a tube pump 77 as shown in FIG. In the tube pump 77, a central portion in the longitudinal direction of a rotary arm 77b is fixed on a pump shaft 77a linked to a planting drive shaft, and rollers 77c and 77c are rotatably supported at both ends of the rotary arm 77b. An arcuate pressing guide 77d is provided outside the roller 77c with the pump shaft 77a as the center, and a tube 77e is disposed between the pressing guide 77d and the roller 77c. One end of the tube 77e is connected to the irrigation tank 62 via a hose, and the other end of the tube 77e is connected to the irrigation nozzle 65 via a hose.

  In such a configuration, when the pump shaft 77a is rotated in conjunction with the planting drive, the roller 77c rotates along the pressing guide 77d, and the water flowing into the tube 77e is sandwiched between the roller 77c and the pressing guide 77d. In this state, the water is pushed out toward the irrigation nozzle 65 and discharged from the irrigation nozzle 65. The tube 77e passed by the roller 77c is restored to its original thickness and sucks water.

  Moreover, the irrigation pump 64 can be comprised with the plunger pump 78, for example, as shown in FIG.11 (b). The plunger pump 78 is connected to a plunger 78c via a connecting rod 78b to a crankshaft 78a serving as a pump shaft interlocked with the planting drive shaft, and the plunger 78c is slidably inserted into the pump case 78d. A suction valve 78e and a discharge valve 78f are disposed on the head side of the pump case 78d. The suction valve 78e is connected to the irrigation tank 62 via a hose, and the irrigation nozzle 65 is connected to the discharge valve 78f via a hose. Connected.

  In such a configuration, when the crankshaft 78a is rotated in conjunction with the planting drive, the plunger 78c slides toward the crankshaft 78a, thereby opening the suction valve 78e and closing the discharge valve 78f. Flows into the pump case 78d. Further, when the crankshaft 78a rotates and the plunger 78c slides to the head side, the suction valve 78e is closed and the discharge valve 78f is opened, and the water in the pump case 78d is pushed toward the irrigation nozzle 65 and discharged. Is done.

  Moreover, the irrigation pump 64 can be comprised with the cascade pump 79 as shown, for example in FIG.11 (c). The cascade pump 79 has a disk-like impeller 79c rotatably supported in a casing 79b, and the center of the impeller 79c is fixed to a pump shaft 79a driven by power transmitted from the engine 14. A suction port 79d and a discharge port 79e are provided on the outer periphery of the casing 79b, and a partition wall 79f is provided between the casing 79b and the impeller 79c between the suction port 79d and the discharge port 79e. The suction port 79d is connected to the irrigation tank 62 via a hose, and the discharge port 79e is connected to the irrigation nozzle 65 via a hose and switching valve 79g. A spill hose is connected to the switching valve 79g so that it returns to the irrigation tank 62 when water is not discharged from the irrigation nozzle 65.

  In such a configuration, when power is constantly transmitted to the pump shaft 79a and the impeller 79c rotates during planting work, a vortex is generated and water is sucked from the suction port 79d and discharged from the discharge port 79e. The switching valve 79g is opened / closed in accordance with the planting timing, and a predetermined amount of water is discharged from the irrigation nozzle 65. In this case, a stable water discharge amount can be secured by providing a pressure accumulation chamber (not shown) on the discharge side. In addition, the irrigation pump 64 can also be comprised with a gear pump, a vane pump, etc. Moreover, it can also be set as the structure which pumps water to the irrigation nozzle 65 using the water supply pump 63 driven by the said engine 14 instead of the irrigation pump 64. FIG. In this case, a switching valve that switches the direction of water discharge to the irrigation tank 62 and the irrigation nozzle 65 is provided at the discharge portion of the water supply pump 63.

  The earth covering plate 51 is attached to both sides of the rear portion of the groove producing device 50. The left and right covering plates 51 are attached so as to incline in the left-right center direction in plan view so that the soil is brought closer to the root pot 81 of the cell seedling 80 after planting as it advances.

  The pressure reducing wheel 52 is rotatably supported by the tip of a support rod 57 protruding rearward and downward from the rear end of the planting transmission case 46. The pressure reducing wheel 52 is configured in a truncated cone shape, and is disposed on both the left and right sides behind the planting position. An urging member 58 is interposed between the support rod 57 and the rear portion of the planting transmission case 46 to press the pressure-reducing wheel 52 downward. Although the urging member 58 is constituted by a rod and a spring fitted around the rod, the urging member 58 can be urged by a torsion spring or the like and is not limited. The outer peripheral surface of the pressure reducing wheel 52 in contact with the field scene is made of a water-repellent synthetic resin so that soil does not easily adhere. Thus, as the soil advances, the surface of the soil brought close to the root of the seedling by the cover plate 51 is pressed by the pressure reducing wheel 52, so that it is easy to settle.

  As shown in FIGS. 4 and 8, the sensor roller 54 is rotatably supported at the tip of the support arm 59, and is disposed on the side or front of the left and right center groove forming device 50. A middle portion of the support arm 59 is supported by the support case 49 a (or the planting transmission case 46) so as to be rotatable up and down, and the other end of the support arm 59 extends forward and upward and is connected to the sensor wire 61. The other end of the sensor wire 61 is connected to a lifting hydraulic device (not shown) provided in the traveling unit 10.

  The raising / lowering hydraulic device controls raising / lowering of the raising / lowering cylinder which raises / lowers the planting part 40, and raises / lowers the raising / lowering cylinder so that the planting part 4 may be set height, ie, planting depth may become setting depth. . For example, when the field is hard and the grooving device 50 is lifted and raised, the sensor roller 54 is lowered, the sensor wire 61 is extended, and the elevating hydraulic device extends the elevating cylinder to lower the planting unit 40 to the set depth. Lower. Conversely, when the field is soft and the grooving device 50 sinks and descends, the sensor roller 54 rises, the sensor wire 61 is pulled, and the lifting hydraulic device contracts the lifting cylinder and raises the planting portion 40 to set the depth. Raise it up. Thus, it is possible to maintain the set depth and stabilize the planting posture.

  As described above, the planting part 40 is attached to the rear part of the riding type traveling part 10 via the lifting mechanism 30, and the planting part 40 includes the rotary or crank type planting claw part 70. The cell seedlings 80 are cut out one by one from the cell seedling mat 8 placed on the seedling placing table 41 by the vertical rotation of the attached claw portion 70, and the cell seedlings 80 are planted directly in the field, thereby shortening the time required for transplanting. Planting efficiency can be increased. And since the cell seedling 80 is discharge | released in the groove-grower 50, even if it is a case of uncultivated land, it is planted without being disturbed by the influence of surrounding weeds, soil blocks, etc. Further, the vegetable transplanter 1 is provided with an irrigation device 6 for irrigating at the time of planting. The irrigation device 6 is provided in the irrigation tank 62 mounted on the vegetable transplanter 1 and the planting unit 40 and planting timing. The irrigation pump 64 that discharges water from the irrigation tank 62 and water discharge means that discharges the water discharged from the irrigation pump 64 in the vicinity of the planting position are mechanically transplanted. Sometimes, irrigation can be performed at the same time, and the survival rate can be improved. In addition, the minimum amount of water required for transplantation can be discharged, there is no wasteful irrigation, and continuous transplantation in a wide field can be performed by supplying water to the irrigation tank once.

  When the irrigation nozzle 65 serving as the water discharge means is disposed in front of the lowermost part where the planting claws 45 are rotated, the cell seedlings 80 are planted after the soil in the field is moistened, and the soil and the root pot in the field. The viability with 81 is improved. In addition, when the irrigation nozzle 65 serving as the water discharge means is disposed at the rear of the lowermost part where the planting claws 45 are rotated, the soil and root pots that are irrigated and covered after the planting and covering of the cell seedling 80 are covered. 81 and the surrounding soil are moistened with water and become familiar, and the viability improves.

  In addition, since the irrigation nozzle 65 is attached to the grooving device 50 which is disposed in front of and below the planting claw 45 and forms a groove in the field scene, the height and water discharge position with respect to the field are constant, and the irrigation state is As a result, the growth of seedlings after transplanting can be made substantially constant.

  Further, since the irrigation tank 62 is disposed below the step 23a in front of the left and right front wheels 12, 12, the space below the body frame 11 can be used effectively without obstructing the front view. . In addition, the front-rear balance can be kept good.

  The present invention relates to a transplanting machine for placing cell seedlings such as vegetables and flower buds on a seedling mounting base of a planting unit mounted on the rear part of a traveling unit, and cutting and transplanting with a rotating rotary or crank type planting claw Can be applied to.

DESCRIPTION OF SYMBOLS 1 Vegetable transplanter 6 Irrigation device 8 Cell seedling mat 10 Traveling part 30 Lifting mechanism 40 Planting part 41 Seedling stand 45 Planting claw 62 Irrigation tank 64 Irrigation pump 65 Irrigation nozzle

Claims (5)

A planting part is attached to the rear part of the riding type traveling part via an elevating mechanism, and the cell seedling mat placed on the seedling stage by rotating the planting claw provided in the planting part in the vertical direction is It is a vegetable transplanting machine that cuts out plants one by one with planting nails,
Equipped with an irrigation device that irrigates during planting,
The irrigation apparatus comprises an irrigation tank and water discharge means for discharging water from the irrigation tank provided at the planting unit in accordance with the planting timing.
The water discharge means has an irrigation pump and an irrigation nozzle,
The irrigation nozzle is disposed in front of the planting nail and is disposed so as to discharge water near a planting position which is a lower end position of a rotation locus of the planting nail, and a groove is formed in a farm scene. A vegetable transplanter, which is attached to a grooving device to be formed and disposed between side plates of the grooving device.   The vegetable transplanter according to claim 1, wherein a lower portion of a rotation locus of the planting claw is disposed between side plates of the groove producing device. A planting part is attached to the rear part of the riding type traveling part via an elevating mechanism, and the cell seedling mat placed on the seedling stage by rotating the planting claw provided in the planting part in the vertical direction is It is a vegetable transplanting machine that cuts out plants one by one with planting nails,
Equipped with an irrigation device that irrigates during planting,
The irrigation apparatus comprises an irrigation tank and water discharge means for discharging water from the irrigation tank provided at the planting unit in accordance with the planting timing.
The water discharge means has an irrigation pump and an irrigation nozzle,
The irrigation nozzle is disposed at the rear of the lowermost part where the planting claws behind the grooving device that forms grooves in the field scene are rotated, and water is discharged from the irrigation nozzle onto the cover soil after planting. Featured vegetable transplanter.   The vegetable transplanter according to claim 3, wherein the irrigation nozzle is attached to a support projecting rearward from the groove producing device.   5. The vegetable transplanter according to claim 1, wherein the irrigation tanks are disposed on both left and right sides of the body frame, and are disposed below the steps in front of the left and right front wheels.

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