JP2005245339A - Seedling transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seedling transplanter that has a simple structure and can transplant seedlings as the stem line of each seedling is kept exactly upright by suppressing the posture disturbance in the seedlings. <P>SOLUTION: In the seedling transplanter 1 that is constituted so that the seedlings p fed by the operator W may be transplanted to the ridge U with the planting part, the grounding parts 2, 3 that come down to the field ground and allows the machine body to move, the seadling receiver 5 for receiving a seedling p, the holding means 6 for holding lowering the seedling p received in the seadling receiver 5 and transplanting the seedling p to the field ground U. The holding means 6 is at the stem part of the seedling that is received in the seadling receiver 5 and holds the stem part at the position apart from a prescribed interval from the stem bottom toward upper direction, then allows the seedling go down to the ground as the stem part of the seedling is kept upright in the vertical direction with the seadling held and the seedling comes down to the ground and is inserted into the field ground. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a seedling transplanting machine for transplanting chrysanthemum cutting seedlings and vegetable seedlings.

  A seedling transplanting machine configured to receive a vegetable seedling supplied by an operator and plant a planting part on a cocoon is known. For example, the one shown in Patent Document 1 is based on a seedling container that circulates and transfers a large number of cups in a loop, and a saddle-like hopper that moves up and down between the seedling container and the planting position. The planting part which has a planting nail | claw, and is comprised, The vegetable seedling thrown into the seedling storage part by the operator can be planted in a cocoon by a planting part.

However, the seedlings dropped into the planting claws of the planting part may be disturbed in posture, and there is a problem that the planting claws descend and the seedlings are planted on the cocoon in an inclined posture.
JP 2003-230308 A

  The problem to be solved is that in the seedling transplanter configured so that the planting part is planted in the cocoon, the planting posture of the seedling can be improved by suppressing disturbance of the posture of the seedling at the time of seedling planting. An object of the present invention is to provide a seedling transplanter having a simple configuration.

  The invention according to claim 1 is a grounding unit for grounding to the field and moving the aircraft, a seedling storage unit for storing the seedlings, and holding the seedlings stored in the seedling storage unit and lowering the seedlings in the field A gripping means for planting, wherein the gripping means grips a stem portion of the seedling that is stored in the seedling storage portion and is located at a position spaced apart from the lower end of the stem by a set interval, and holds the seedling In this state, the seedling stalk is lowered in the vertical direction and is moved down so that the lower end of the seedling stalk is inserted into the field from above.

  The gripping means operates so that the seedling stalk is lowered in the vertical direction while holding the seedling in a vertically standing posture and the lower end of the seedling stalk is inserted into the field from above.

  According to a second aspect of the present invention, in the configuration of the first aspect, before the gripping means inserts the seedling into the field, a hole making body for forming a hole at the seedling insertion position in the field is provided. A hole for making it easy to insert a seedling by the hole making body is formed in advance at a place where the seedling in the field is inserted.

  According to a third aspect of the present invention, in the configuration of the second aspect, the airframe is configured to stop when the gripping means inserts a seedling into a field. The planting posture of the seedling is ensured by stopping the aircraft when inserting the seedling.

  According to a fourth aspect of the present invention, in the configuration of the first aspect, the seedling container includes a seedling container that stores seedlings one by one, and the gripping means is inserted into a side portion of the seedling container. An opening for holding the seedling is formed. From the opening, the seedling is taken out in a standing posture by advancing and retracting the gripping means.

The seedling transplanter of the present invention has the following effects.
The effect of the invention of claim 1 is that it can be transplanted by directly holding the seedling with the gripping means and inserting it into the field in a standing posture. It becomes possible to make the planting posture more difficult to disturb. Further, the seedling grasping means can be made smaller than the planting claws of the bowl-shaped hopper, so that the entire body can be made compact.

  The effect of invention of Claim 2 can make it easier to insert a seedling by forming a hole at a seedling insertion location in a field with a hole making body.

  The effect of the invention of claim 3 is that when the seedling is inserted into the field, the seedling can be more reliably planted by stopping the machine body, and the planting posture of the seedling is less likely to be disturbed.

  The effect of the invention of claim 4 is that by holding the seedling in an upright state from the side of the seedling container, the operation of the gripping means is simplified and the structure of the machine body can be simplified.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
A side view and a plan view of a configuration example of the seedling transplanter of the present invention are shown in FIGS. 1 and 2, respectively. The seedling transplanting machine 1 supports the machine frame 4 so that it can run by the grounding part by the front and rear traveling wheels 2, 3, and the machine frame 4 is equipped with a battery 4 a as a power source and a seedling that accommodates and transfers the seedling p. The container 5, a multi-strip type gripping means 6 (four in the example shown) that grips the seedling p stored in the seedling storage part 5, and the gripping means 6 are moved up and down so as to be able to move forward and backward. Elevating device 7 for planting seedlings p, operator seats 8 and 8 on both sides and steps 8a and 8a thereof, a handle 9 for operating the machine body, and the like. The power source may be an engine.

  Specifically, the left and right front wheels 2 and 2 are provided with leading rollers 11 and 11 at their leading positions, and are configured to be guided and steered along the saddle U. The left and right rear wheels 3, 3 are individually provided with electric motors 3a, 3a for driving, and are driven and controlled so as to be able to run intermittently so as to stop at each planting position, and the electric motor 12 for driving so as to be able to turn 90 degrees. And the left and right rear wheels 3, 3 are connected by a rod 13.

  The seedling container 5 is configured so that a large number of cup-shaped seedling containers 14... Are arranged in a chain and circulates on an elliptical trajectory extending in the vehicle width direction so as to be intermittently driven according to intermittent running of the aircraft. . As shown in the exploded perspective view of FIG. 3, each seedling container 14 is configured by assembling a receiving portion 16 below the ring-shaped mouth portion 15 for the operator to put the seedling p. This receiving part 16 opens the opening part 16a in the side face part, and directs the opening part 16a to the outer peripheral side where the gripping means 6 is provided, and links the annular mouth parts 15 and 15 of the two adjacent seedling containers 14 and 14 together. The plates 17 and 17a are connected in a chain shape. Each seedling container 14 can hold the seedling in an upright posture by receiving the lower end of the seedling thrown from the ring-shaped mouth portion 15 on the V-shaped bottom 16b narrowing from the left and right of the receiving portion 16, and this seedling is in its posture. It can be taken out from the opening 16a to the side.

  Sprockets 14a, 14a for circularly transferring a large number of seedling containers 14 connected in a chain and transfer shafts 5a, 5a for driving the sprockets 14a, 14a are provided at both side ends of the seedling container 5, The chain 5b that drives the transfer shafts 5a and 5a is configured to be capable of intermittent operation control. As shown in the connection diagram of FIG. 4, the drive circuit includes a speed variable resistor R and select switches T <b> 1 to T <b> 4 that can select various work speeds (for example, 1500 / H to 4000 / H). In addition, a speed switching relay contact R1 for switching the changeover switches T1 to T4 to low speed driving by the total resistance T0 and a stop relay contact R0 for stopping the drive motor M are provided in the motor circuit.

  By the drive circuit, the seedling container 5 is driven at a work speed corresponding to the selection of the changeover switches T1 to T4. When the drive motor M is stopped in the intermittent operation control, first, the speed change relay contact R1 is used. The drive motor M is stopped by switching to a predetermined low speed drive and then switching the stop relay contact R0. With this simple stop control, the stop position accuracy of the seedling containers 14 can be ensured regardless of the selected various work speeds.

  In the vicinity of the seedling container 5, a rooting agent supply means 20 for supplying a liquid rooting agent (for example, trade name oxyberon) to the seedling p being transferred in the seedling container 5 is provided. For example, as shown in FIG. 5, the rooting agent supply means 20 is provided with a pipe-shaped outlet 18 having a plurality of nozzles 18a at positions along the circular trajectory of the seedling containers 14. The rooting agent is sprayed from the opening 16a of the seedling container 14 toward the seedling.

A recovery tank 19 for recovering and reusing the rooting agent blown out from the blowing unit 18 is provided below the seedling container 14, and the rooting agent collected in the collection tank 19 is supplied with the pump P and the blowing unit 18. Is sprayed again on the seedlings in the seedling container 14.

The rooting agent supply means 20 will be described in further detail. The blow-out unit 18 has a nozzle 18a for spraying a rooting agent from the opening 16a of the seedling container 14 to the lower end of the seedling p, and the pitch size of the seedling container 14. The seedling container 14 sprays a rooting agent on the lower end of the seedling p when the seedling container 14 is stopped by intermittently controlling the pump P in response to stopping the feeding of the seedling container 14. The rooting agent that leaks from the V-shaped bottom 16b and, if necessary, from gaps or holes (not shown) formed in the V-shaped bottom 16b is collected in the collection tank 19 and circulated for use.

Further, the rooting agent supply means 20 passes through the place where the grasping means 6 grasps the seedlings in the seedling container 14 and then the operator first puts the seedlings p from the place of the seedling container 14 to the grasping means. 6 is appropriately arranged in a range along the circular trajectory of the seedling container 14 up to the place where the seedling is gripped. In this embodiment, the left and right seats 8 are arranged at a position B immediately before the position at which the seedling is gripped by the gripping means 6 in order to improve the left / right balance of the entire body. Regardless of which the operator supplies the seedling to the seedling container 14, the rooting agent may be reliably supplied to the seedling.

Conventionally, when a rooting agent is sprayed onto a seedling in advance before seedling transplantation, since the operator sprayed the rooting agent directly on the seedling, there has been a problem that the rooting agent adheres to the operator and causes rough hands.
By providing the rooting agent supply means 20 configured in this manner in the vicinity of the seedling container 5, the rooting agent can be sprayed on the seedling p before planting to promote rooting after transplanting. . Further, it is possible to save the operator from having to manually spray the rooting agent in advance, and to prevent rough hands due to irritating chemicals. In the spraying process of the rooting agent, the rooting agent can surely act on the lower end portion of the seedling p by the nozzles 18a corresponding to the pitch of the seedling container 14 in accordance with the stop timing of the seedling p. Further, the rooting agent sprayed by the nozzles 18a is recovered in the recovery tank 19 so that the rooting agent can be used repeatedly, and the amount of rooting agent to be discarded is reduced, so that the rooting agent is more efficiently used. Can be used.

  Next, as shown in FIGS. 6 and 7, respectively, the gripping means 6 is a left and right gripping portion 21a, 21b for gripping the stem portion of the seedling p, as shown in FIGS. Are attached to slide rods 23a, 23b configured to be slidable in the left-right direction. Both of these slide rods 23a, 23b extend to the left and right, and a pair of pinching arms 22a, 22b are attached to each of the planting strip positions by the number of strips, and intermediate links 24a, 24b with a fixed slot are attached. To both ends of the rotary arm 25. The rotary arm 25 is provided with a cam 26 that integrally operates and a limit switch 27 for detecting the rotation angle thereof, and the rotation is controlled so that the rotation drive is stopped at a predetermined angular position.

  By rotating the rotary arm 25 having the above configuration about the central axis C by the motor 25a, the slide rods 23a and 23b extending in the left and right directions are slid in opposite directions with a margin corresponding to the long holes of the intermediate links 24a and 24b. Through the slide rods 23a and 23b, the left and right grips 21a and 21b are opened and closed simultaneously. By controlling the timing of the opening / closing operation with the cam 26 and the limit switch 27, it is possible to freely control the holding and release of the transplanted seedlings p such as chrysanthemum with a simple configuration that does not require adjustment.

  As shown in the perspective view of FIG. 17, the elevating device 7 includes left and right guide columns 31, 31 erected from the machine body frame 4, and chains 31 a, 31 a that circulate between the upper and lower ends, and an elevating drive motor 31 b, 31b is provided between the left and right guide columns 31, 31 so as to be movable up and down by the respective chains 31a, 31a. The screw rod 33 and its drive motor 33a are mounted on the lift 32 in the longitudinal direction of the machine body. The gripping means 6 is supported and configured to be capable of moving forward and backward.

  As shown in FIG. 8, the lifting device 7 and the gripping means 6 configured as described above are stopped at a predetermined position where the seedling container 14 of the seedling container 5 moves around and faces the gripping means 6 as shown in FIG. 8. In the height position of the seedling container 5, the gripping means 6 corresponding to each line opens the left and right pinching arms 22a and 22b from the lifting part 32 of the lifting device 7 and enters the opening 16a of the corresponding seedling container 14 (First step). Here, by closing the left and right pinching arms 22a and 22b, the stem of the seedling p in the upright posture in the seedling container 14 is gripped at the middle position, and then the retracting operation (second stroke) is performed from the opening 16a. At the same time, the seedling container 14 is moved around. When the elevating part 32 is lowered as it is to the planting position on the cocoon U (third stroke), the lower end part of the seedling p in the upright posture is inserted into the cocoon U. Here, the left and right sandwiching arms 22a and 22b are opened and then raised to the height position of the seedling container 5 (fourth stroke). During this time, the aircraft travel is stopped until the raising / lowering unit 32 is lowered to a predetermined position until the seedling p is planted on the ridge U. Thereby, when the seedling p is directly inserted into the ridge U, the planting posture of the seedling can be hardly disturbed. In particular, the effect is great when planting so-called bare seedlings in which no soil is attached to the lower end of the seedlings. Moreover, since the time for stopping the airframe traveling can be shortened, the decrease in planting efficiency can be further reduced.

  Further, when deeply planting the seedling p, as shown in the operation stroke diagram of FIG. 9, the gripping means 6 opens the left and right clamping arms 22a and 22b at the planting position where the elevating part 32 is lowered (third stroke). The lift part 32 is slightly raised (fourth stroke), the left and right pinching arms 22a and 22b are closed, the seedling p is changed above the initial gripping position, and the lift part 32 is lowered again to the planting position. The re-planting control of the gripping means 6 and the elevating part 32 is performed so as to perform (the fifth stroke). This replanting control is configured to be selectable by a changeover switch, so that the planting depth can be adjusted as necessary.

  In this embodiment, a hole is provided at a position where the seedling is inserted before the gripping means 6 that has provided the hole-producing body 35 and grips the seedling descends to a position where the seedling is inserted into the cocoon, thereby inserting the seedling into the cocoon more. It is configured so that it can be made easier. The number of hole making bodies 35 equal to the number of the gripping means 6 is configured such that a hole is provided in the heel by a rotating mechanism 36 that is rotated by a motor or the like rotating up and down at a predetermined interval. After the turning mechanism is lowered and a hole is formed in the hole making body 35, the turning mechanism is raised and the gripping means 6 is lowered to plant the seedling p on the ridge U.

  Each operator sits on the left and right seats 8, 8 of the seedling transplanter 1 or one of them, and the operator moves the seedlings p taken out from the separately loaded seedling boxes one by one along the circular trajectory. It puts in the container 14. Then, the seedling p is transferred along the circular trajectory, and the rooting agent is supplied by the rooting agent supply means 20 during the transfer. And it is transferred to the position facing the gripping means 6, the seedlings in the plurality of seedling containers 14 are simultaneously gripped by the plurality of gripping means 6, taken out from the seedling container 14, and lowered by the lifting device 7, Can be planted at the same time. In addition, by providing a hole in the seedling planting position in advance with the hole making body 35, the seedling p can be more reliably planted by direct insertion in an upright posture.

If the seedling transplanter 1 reaches the end of the cocoon U by this planting operation, the rear wheels 3 and 3 are turned 90 degrees to move the aircraft laterally, thereby moving to the adjacent cocoon U and continuing the planting operation. To do. Specifically, as shown in FIG. 10 which is a side view when the aircraft is laterally moved, the rear wheels 3 and 3 are turned 90 degrees by the switch operation at the headland at the end of the kite U and project to the rear of the aircraft. When the operator puts the weight on the handle 9 and floats the front wheels 2 and 2, the aircraft can be moved laterally. Further, if necessary, auxiliary handles 5h and 5h can be provided on the side of the seedling container 5, and the auxiliary handles 5h and 5h can be grasped and moved forward while lifting the front of the machine body.
In this embodiment, the switch is turned 90 degrees by a switch operation. However, it may be turned by a manual handle.

  After this lateral movement, the next planting operation can be started promptly without changing the direction of the aircraft by running the aircraft along the heel U with the front and back of the aircraft reversed and performing seedling planting operations. Can do. In this reverse stroke, the left and right saddle sensors 3s and 3s for detecting the saddle width are provided in the vicinity of the rear wheels 3 and 3, and the rear wheel 3 and 3 are steered in accordance with the signals to thereby control the aircraft. Can travel along.

Next, another configuration example of the seedling transplanter of the present invention will be described. In the following description, the same members as those described above are denoted by the same reference numerals, and description thereof is omitted.
As shown in a plan view of the seedling transplanting machine 41 according to another configuration, as shown in FIG. 11, the lifting device 7 is arranged at the front of the machine body with the multi-row (four in the illustrated example) gripping means 6 directed toward the rear of the machine body. Then, the seedling storage part 5 is configured to be horizontally long facing the gripping means 6 behind the lifting device 7. In the seedling container 5, a rooting agent supply means 20 is arranged in the vicinity of the planting position by the grip means 6.

  By configuring the seedling transplanting machine 41 in this way, it is possible to secure the work range of the operator W for the entire width behind the seedling storage unit 5.

  Reference numeral 51 disclosed in FIG. 12 is a planting claw 51 having a bowl-like lower end, which is the same number as the gripping means 6, and is attached so as to advance and retract and move up and down integrally with the gripping means 6. The planting claws 51 are used when planting soil seedlings that are difficult to plant by gripping means 6 compared to bare seedlings. In a present Example, it can select and plant in the planting state for bare seedlings, and the planting state for seedlings with a soil by comprising in the raising / lowering part 32 so that attachment or detachment is possible.

  A specific configuration and operation will be described. First, the gripping means 6 is configured at a height position where the planting claws 51 are located below the seedling container 14 when the grasping means 6 enters the seedling container 14. Then, when the gripping means 6 grips the seedling and retreats from the opening of the seedling container 14, the gripping state is released and the seedling is dropped and supplied into the planting claw 51.

  The planting claw 51 descends with the lowering operation of the gripping means 6 and is released when the lower end pierces the cocoon U, and discharges the seedling in the planting claw 51 to the cocoon. The planting claw 51 of this embodiment is opened by the operation of a solenoid (not shown).

  Moreover, in a present Example, as shown in FIGS. 13-15, it can plant in the zigzag U by configuring so that the lower end part of the adjacent planting claws 51 and 51 may shift | deviate to the front-back direction of a body. Further, as shown in FIG. 16, the lower ends of the adjacent planting claws 51 and 51 are configured to be planted on the same strip, so that two seedlings can be planted on the same strip at a time. That is, in this embodiment, by providing 8 gripping means and 8 planting claws 51, it is possible to plant 2 seedlings per 1 streak, that is, 8 seedlings per 4 streaks at a time. ing.

It is a side view of the example of composition of the seedling transplanter of the present invention. It is a top view of the example of composition of the seedling transplanter of the present invention. It is a disassembled perspective view of a seedling supply part. It is a connection figure of the drive circuit of a seedling circumference principal part. It is a perspective view of a rooting agent application part. It is a principal part perspective view of a holding means. It is a top view of the drive part of a holding means. It is a side view for operation | movement explanation of a raising / lowering apparatus and a holding means. It is an operation process figure at the time of deep planting a seedling. It is a side view at the time of moving a body sideways. It is a top view of the seedling transplanting machine by another structure. It is a side view of the structural example of the seedling transplanter to which the planting nail is applied. It is an enlarged side view of a planting nail. It is an expansion perspective view of a planting nail. It is the planting example 1 by a planting nail. It is the planting example 2 by a planting nail. It is a perspective view of a raising / lowering apparatus.

Explanation of symbols

1 Seedling transplanter 2 Front wheel (grounding part)
3 Rear wheel (grounding part)
4 machine body frame 5 seedling container 6 gripping means 7 lifting device 14 seedling container 16 receiving part 16a opening 16b V-shaped bottom 18 blowing part 19 recovery tank 20 rooting agent supply means 21a, 21b gripping part 22a, 22b pinching arm 23a , 23b Slide rod 25 Rotating arm 32 Lifting unit 33 Screw rod 35 Drilling body A, B Rooting agent supply position p Seedling U 畝 W Operator

Claims (4)

  A grounding unit for grounding to the field and moving the aircraft, a seedling container for storing the seedling, and a gripping means for gripping the seedling stored in the seedling container and descending and planting the seedling in the field, The gripping means grips a stem portion of a seedling that is stored in the seedling storage portion and is spaced apart from the lower end of the stem by a set interval, and the seedling stem portion moves up and down while holding the seedling. A seedling transplanter configured to operate so that the lower end of the stem part of the seedling is inserted into the field from above by descending to the field with the posture standing up in the direction.   The seedling transplanter according to claim 1, wherein a hole making body for forming a hole at a seedling insertion position in the field is provided before the gripping means inserts the seedling into the field.   The seedling transplanting machine according to claim 2, wherein the body is configured to stop when the gripping means inserts the seedling into the field.   The seedling container is provided with a seedling container for storing seedlings one by one, and an opening for inserting the gripping means to grip the seedling is formed in a side portion of the seedling container. The seedling transplanter according to claim 1.

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