JP2005295833A - Seedling-transplanting machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vegetable-transplanting machine making it possible that a planting posture of a seedling is difficult to be disordered when the seedling is planted. <P>SOLUTION: This seedling-planting machine is equipped with a travelling machine body having a travelling device 1, a seedling-planting unit mounted on the travelling machine body and used for planting the seedling while forming a seedling-planting hole on a farm field, and a soil-supplying unit 71 for preliminarily supplying soil to a position where the seedling-planting hole is formed prior to formation of the seedling-planting hole by the seedling-planting unit. The seedling-planting unit is equipped with a bill-shaped seedling-planting body 4 and a suppressing device 36 at a rear part of the seedling-planting body 4, wherein the seedling-planting body 4 performs vertical motion along a predetermined locus, a bottom part of the seedling-planting body 4 is formed so as to be opened and closed in the transverse direction of the machine body, and the suppressing device 36 brings the soil around a planted seedling up to sides of the seedling after the seedling is planted. Therefore, the soil-supplying unit 71 brings the soil up to a seedling-planting area before the seedling is planted, so that the planted seedling is easily held by the soil brought up. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a seedling transplanting machine for field vegetables and the like.

  2. Description of the Related Art When transplanting seedlings such as leeks into a field farm, a vegetable transplanting machine is known in which seedlings in the form of beaks are inserted into the soil surface and opened to plant seedlings. The conventional rod-shaped seedling planting body is plunged into the field, the seedling planting body is opened to form a seedling planting hole, and the seedling planting body is released from the field after releasing the seedling into the seedling planting hole. In a vegetable transplanter configured to evacuate, immediately after the seedling planting body is withdrawn from the field, there is no soil to support the seedling around the seedling in the seedling planting hole. However, the posture of the seedling was sometimes disturbed before the soil around the seedling was brought to the seedling side. In particular, bare seedlings that do not have floor soil on the seedlings may be disturbed.

In order to solve the above problems, the following improved inventions are known.
Patent Document 1 discloses a configuration in which the soil supplied into the seedling planting body is discharged at the same time as seedlings are planted, and Patent Document 2 supplies soil to a seedling planting hole after planting seedlings. The structure which suppresses soil with a suppression wheel is disclosed.
JP 2002-305922 A Japanese Utility Model Publication No. 6-57102

Although the planting performance of seedlings is improved by the configurations disclosed in Patent Documents 1 and 2, the following problems still remain.
That is, like the vegetable transplanter disclosed in Patent Document 1, a configuration in which a cage-like seedling planting body is inserted into the soil surface and opened to plant seedlings, and at the same time, the soil supplied into the seedling planting body is discharged. Then, since soil is supplied from the upper part of the planted body, the fall distance becomes long, and the posture of the seedling may be disturbed by the momentum of the supplied soil.

  In addition, in the configuration in which the soil is supplied to the planting hole after the seedling is planted and the soil is suppressed by the pressure ring as in the cited document 2, there is no soil for supporting the seedling around the seedling, The posture of the seedling is likely to be disturbed before the soil around the seedling is brought to the seedling side with the pressure wheel after planting the seedling.

  This invention makes it a subject to provide the seedling transplanting machine which made it difficult to disturb the planting posture of the seedling at the time of seedling planting.

The problems of the present invention are solved by the following means.
The invention described in claim 1 is a seedling transplanting machine provided with a seedling transplanting device for planting a seedling while forming a seedling planting hole in a farm field on a traveling vehicle body provided with the traveling device 1, wherein the seedling planting device is a seedling planting. This is a seedling transplanting machine provided with a soil supply device for supplying soil to a location where the seedling planting hole is formed in advance before forming the attachment hole.

  The invention described in claim 2 is a bowl-shaped seedling planting body in which the seedling planting device is configured to move up and down along a set trajectory and to open and close the lower part in the left-right direction toward the aircraft traveling direction. The seedling transplanter according to claim 1, wherein a pressure reducing device is provided at the rear of the seedling planting body 4 and the pressure suppressors 36, 36 ′ for bringing soil around the planted seedling to the seedling side after planting. .

  A third aspect of the present invention is the seedling transplanter according to the first aspect, wherein the soil supply device is provided with a mulch body 71 at the lower portion of the traveling vehicle body that lands the soil in the field at a place where a seedling planting hole is formed.

  According to invention of Claim 1, before the said seedling planting apparatus forms a seedling planting hole, soil is supplied to the place which forms this seedling planting hole beforehand with a soil supply apparatus, and embankment is formed. By placing the seedling planting device in the seedling planting hole while forming the seedling planting hole, the amount of soil entering the seedling planting hole increases, so the posture of the seedling is less likely to be disturbed .

  According to the second aspect of the present invention, the seedling planted body is in a state in which soil is supplied in advance to the place where the seedling planting hole is formed by the soil feeding apparatus and the embankment is filled and the seedling of the seedling planting apparatus is held. 4 is lowered to enter the field, a seedling planting hole is formed, and then the seedling planting body 4 is opened in the left-right direction toward the aircraft traveling direction, and the seedlings held by the seedling planting body 4 are planted. Then, the seedling planting body 4 is raised, and the pressure-reducing devices 36 and 36 'bring the soil around the seedling to the seedling side.

  By constructing the seedling planting body 4 so as to open in the left-right direction of the machine body, the soil divided before the seedling planting is divided into the left-right direction of the seedling and returned to the seedling side with the pressure-reducing devices 36, 36 ′. Therefore, the seedling can be planted more efficiently by filling the seedling into the seedling, and the planting posture of the seedling becomes more difficult to disturb.

  According to the third aspect of the present invention, as the soil supply device, the soil collecting body 71 for bringing the soil in the field to the place where the seedling planting hole is formed is provided in the lower part of the traveling vehicle body, so that the seedling transplantation can be performed with a simple configuration. While the machine is running, the soil gathering body 71 can constantly gather the soil in the field and gather the soil to the place where the seedling planting hole is formed.

Embodiments of the present invention will be described with reference to the drawings.
As one embodiment of the present invention, a seedling transplanting machine for planting two seedlings at one place will be described below. 1 and 2 show a side view and a plan view of the seedling transplanter, respectively. In the following description of the illustrated example, when referring to the front or the rear, the side on which the steering handle 2 is disposed is the rear, and the opposite side, that is, the side on which the engine 5 is disposed is the front. When the term “right” or “left” is used, the right hand side is defined as the right and the left hand side is defined as the left when viewed from the operator standing at the front of the aircraft in the rear of the aircraft. Moreover, the code | symbol N in a figure shows the planted seedling, G shows a planting field scene.

  The seedling transplanting machine is configured to include a beak-like seedling transplanting body 4 that can be opened and closed connected to a lifting link mechanism 3 that is driven to move up and down on a machine body that includes a traveling device 1 and a steering handle 2.

  In the illustrated example, the traveling device 1 is supported by the engine 5, a pair of left and right rear wheels 6 and 6 that are driven and rotated by transmission of the power of the engine 5, and the front wheels of the rear wheels 6 and 6 so as to be able to roll. A pair of left and right front wheels 7, 7 are provided.

  A mission case 8 is disposed at the rear of the engine 5, and the mission case 8 has a case portion extending from the left side of the engine 5 to the left side of the engine 5, and this is connected to the left side of the engine 5. The output shaft of the engine 5 enters the case portion, and the power is transmitted to the transmission mechanism (the traveling section transmission transmission section C1 and the working section transmission transmission section C2) shown in FIG. .

  The transmission cases 9 and 9 are rotatably attached to the left and right sides of the transmission case 8, and the front ends of the wheel drive shafts extending from the transmission case 8 to the left and right outer sides are centered on the transmission cases 9 and 9. The power for traveling that has entered and has passed through the traveling part system transmission transmission C1 in the transmission case 8 is transmitted to the transmission mechanism in the transmission cases 9 and 9. Then, the driving power is transmitted to the axles 10, 10 extending rearward of the machine body and projecting to the rear end side via the transmission mechanism in the transmission cases 9, 9, and the rear wheels 6, 6 are driven to rotate. It is supposed to do.

  Also, upwardly extending arms 11, 11 are integrally attached to the attachment parts of the transmission cases 9, 9 to the transmission case 8, and this is the tip of the piston rod of the lifting hydraulic cylinder 12 fixed to the transmission case 8. Are connected to the left and right sides of a balance rod 13 that is pivotably mounted around a vertical axis. The right side of the connecting portion of the balance rod 13 is connected by a rod 14, and the left side is connected by a left / right horizontal control hydraulic cylinder 15 that can be expanded and contracted.

  When the elevating hydraulic cylinder 12 is actuated and the piston rod protrudes rearward, the left and right arms 11 and 11 rotate rearward, and accordingly the transmission cases 9 and 9 rotate downward, The aircraft rises. On the contrary, when the piston rod of the elevating hydraulic cylinder 12 is retracted forward, the left and right arms 11 and 11 are rotated forward, and accordingly the transmission cases 9 and 9 are rotated upward so that the aircraft is Descend. The raising / lowering hydraulic cylinder 12 is configured to operate the airframe to a set height with respect to the height of the heel surface based on the detection result of the sensor S that detects the height of the heel surface relative to the airframe. It is also configured to operate so as to raise or lower the aircraft by human operation of the operation tool L arranged in the vicinity of the steering handle 2.

  Further, when the left / right horizontal control hydraulic cylinder 15 expands / contracts, the balance rod 13 rotates around the vertical axis connected to the tip of the piston rod of the lifting hydraulic cylinder 12 at the center of the left / right to transmit left / right transmission. Cases 9 and 9 are moved up and down alternately to incline the aircraft from side to side. The left / right horizontal control hydraulic cylinder 15 is configured to actuate the airframe horizontally in accordance with a detection result of a sensor (not shown) that detects the left / right inclination of the airframe relative to the left / right horizontal.

  The left and right front wheels 7 and 7 are fixed to the side of the lower end portion of the arm portion extending below the left and right side portions of the front wheel support frame 16 attached to the left and right central positions below the engine 5 so as to be rotatable around the front and rear axis. It is attached to the axles 17 and 17 rotatably. Accordingly, the left and right front wheels 7 and 7 are capable of rolling around the longitudinal center of the left and right center of the aircraft.

  The steering handle 2 is attached to a rear end portion of a body frame 2b having a front end portion fixed to the mission case 8. The airframe frame 2b is disposed at a position deviated from the right and left center of the airframe to the right side and extends rearward, and extends obliquely rearward and upward from the front and rear intermediate portion. The steering handle 2 extends left and right rearward from the rear end portion of the body frame 2b, and the rear end portions thereof serve as grip portions 2a and 2a of the steering handle 2. The left and right grip portions 2a, 2a of the steering handle 2 are set to an appropriate height so that the operator can easily grip the grip portions 2a, 2a with hands. In the example shown in the figure, the grip portions 2a, 2a are divided into left and right, but the left and right rear end portions of the steering handle 2 may be connected to each other left and right, and the connecting portion may be used as the grip portion.

  The seedling transplanter of this example includes a seedling supply device 42 that supplies two seedlings to the inside of the sharpened portion of the sharpened pointed portion below the seedling transplanted body 4. FIG. 4 is a side view of the main part of the seedling supply device 42, and FIG.

  The seedling supply device 42 of this example is configured to drop and supply a seedling to the seedling planting body 4 from above, and a seedling container 45 that opens up and down and a lower side of the seedling container 45. The seedling container 45 is composed of a plurality of pipes connected to each other in a loop shape, and passes above the seedling planting body 4 through the seedling container 45. The seedling container moving mechanism 46 that rotates around a loop-shaped trajectory that is non-circular in plan view, and the bottom cover that supports the bottom cover 44 of the seedling container 45 to the position above the seedling planting body 4. The support mechanism 67 is provided.

  The seedling supply device 42 of this seedling transplanting machine is configured such that the seedling containers 45 are rotated in an oval locus in the left-right direction in a plan view of the body, and the seedling containers 45 are linear in the left-right direction. When the two adjacent seedling containers 45, 45 pass above the seedling planting body 4, the bottom lid support mechanism 67 is arranged. Is cut off, the bottom lids 44 and 44 lose support, the bottom lids 44 and 44 of the two seedling containers 45 and 45 are opened, and one of the sharp points 4N pointed below the seedling planting body 4 In contrast, two seedlings are supplied inside the sharpened portion 4N.

  In FIG. 6, the top view of the earth gathering body 71 gathered in the planting location provided in the lower part of a body is shown. In this embodiment, a symmetrical mulch body 71 is provided in the vehicle width across the seedling planting portion, and the distance between the mulch bodies 71 becomes narrower from the front side to the rear side of the machine body. It is configured to be. And the rear end of the soil gathering body 71 shall be the structure located in the near side of a seedling planting position, and the lower end part of the soil gathering body 71 shall be the structure which earth | grounds to a farm field at the time of planting work. When traveling by planting work, the soil in the field is scraped by the left and right mulchers 71 and moves toward the rear side of the machine body along the side surfaces of the mulchers 71. And the seedling planting part will be in a filling state by flowing into a seedling planting site.

Next, the lifting link mechanism 3 and the seedling planting body 4 will be described.
The seedling planting body 4 is a beak-like seedling planting body that moves up and down by the lifting link mechanism 3 and opens and closes by the opening and closing mechanism of the seedling planting body. The attached body 4 is moved up and down, the seedling is received from above the inside of the seedling planting body 4 that is closed on the upper side of the raising and lowering locus of the seedling planting body 4, and the seedling planting is performed on the lower side of the raising and lowering locus of the seedling planting body 4 The appendage 4 is opened so as to open downward and the seedling received inside is discharged to the outside so that the seedling is planted in the field.

  The elevating link mechanism 3 is attached to a planting transmission case 18 having a transmission mechanism that receives and transmits power for driving a seedling transplanting unit through the working unit system transmission unit C2 (FIG. 3) in the mission case 8. Yes. As shown in the figure, the planting transmission case 18 has a front portion connected to the rear portion of the transmission case 8 and is fixed to a first case portion 18a extending obliquely upward and rearward from the first case portion 18a and an upper left portion of the first case portion 18a. A second case portion 18b extending leftward from the second case portion 18b, a third case portion 18c fixed to the left outer end portion of the second case portion 18b and extending rearward therefrom, and a rear left side portion of the third case portion 18c. A fourth case portion 18d that is fixed to the left side and extends to the left side therefrom, and a fifth case portion 18e that is fixed to the left outer end portion of the fourth case portion 18d and extends rearward therefrom. In these first to fifth case portions 18a to 18e, a transmission mechanism for transmitting power for driving up and down the lifting link mechanism 3 is housed.

  The transmission mechanism incorporated in the first case portion 18a includes an intermittent drive mechanism K that intermittently stops the lifting link mechanism 3 and the seedling planting body 4 at or near the highest position of the lifting movement. And a clutch mechanism for stopping the lifting movement of the lifting link mechanism 3 and the seedling planting body 4.

  The intermittent drive mechanism K is a one-rotation stop mechanism that causes the seedling planting body 4 to perform a one-cycle planting operation and automatically stops at the set position, and starts the one-cycle planting operation of the seedling planting body 4 by this one-rotation stop mechanism. As a configuration in which a one-rotation start mechanism for performing the operation is provided and the operation timing of the one-rotation start mechanism is adjusted by the inter-change change transmission unit C3, the stop interval of the seedling planting body 4 is adjusted by this adjustment, and the seedling planting is performed. Changes are made between the stocks.

  In addition, the one-plant planting operation of the seedling planting body 4 by the one-rotation stop mechanism is configured to be driven and rotated by the power transmitted without passing through the inter-change changing transmission unit C3. Therefore, even if the planting planting change is made by the plant changing speed change unit C3, the raising / lowering driving speed of the planting planting body 4 with respect to the aircraft forward speed is not changed, and the planting planting body 4 is in relation to the ground during the work traveling. It moves up and down along the set trajectory.

  And as shown in FIG. 5, the raising / lowering link mechanism 3 has the 1st raising / lowering arm 20 connected rotatably at two right and left places of the connection shaft 19 of the left-right direction provided in the front side of the right and left seedling planting body 4, And a second lifting arm 22 rotatably connected to a left side portion of a connecting shaft 21 in the left-right direction provided on the rear side of the seedling planting body 4. And the lower end part of the 1st raising / lowering arm 20 is rotatably connected with the front-end | tip part of the 1st rocking | swiveling arm 23 attached to the attachment shaft extended to the right side from the lower part of the 3rd case part 18c, As shown in FIG. 3, the lower end of the second elevating arm 22 is connected to the tip of the second swinging arm 24 that is swingably mounted on a mounting shaft extending rightward from the lower rear side of the fifth case 18e. Connect freely.

  Further, an intermediate portion of the first lifting arm 20 protrudes from a right side portion of the third case portion 18c and is fixed to a first drive shaft 25 that is driven and rotated, and is rotatable with a tip portion of the first drive arm 26 that is driven and rotated. The intermediate portion of the second elevating arm 22 protrudes from the right side of the rear side of the fifth case portion 18e, and is fixed to the second drive shaft 27 that is driven and rotated, and the distal end portion of the second drive arm 28 that is driven and rotated. It connects so that it can rotate freely. Therefore, when the first drive arm 26 and the second drive arm 28 are driven and rotated by transmission of power by the transmission mechanism in the planting transmission case 18, the first lift arm 20 and the second lift arm 22 are moved up and down while swinging. As a result, the lower end of the seedling planting body 4 moves up and down while drawing a trajectory T as shown in the drawing. When the beak-like seedling planting body 4 descends to the lower end of its lifting locus, it opens and operates in the left-right direction of the machine body and releases the seedlings in the seedling planting body 4 to the soil in the field.

  As shown in FIG. 5, the raising / lowering trajectory MT during work including the forward movement of the lower end portion of the seedling planting body 4 of the seedling transplanting machine 4 of this example by the forward movement of the body is set as the following trajectory. The up / down trajectory ST of the body 4 with respect to the body and the body forward speed v during work travel are set. That is, the lifting / lowering locus MT at the time of working travel of the lower end portion of the seedling planting body 4 moves from the lowering start point which becomes the upper end of the raising / lowering locus MT toward the lower end of the lifting locus MT while moving to the rear side of the machine body. It descends while drawing a descending trajectory d that bulges toward the rear of the aircraft, and bulges toward the rear of the aircraft toward the ascending end point that is the upper end of the lifting trajectory MT while moving from the rising start point that is the lower end of the lifting trajectory MT It is provided on an up / down trajectory that rises while drawing an up trajectory u.

  As shown in FIGS. 7 to 10, the seedling planting body 4 of the present embodiment has a shape having one sharp beak-shaped sharpened portion 4 </ b> N, and a pair of left and right that open and close in the left-right direction. With an outer seedling planting body (left outer seedling planting body 4a, right outer seedling planting body 4c) and a partition member 4b that partitions the pair of outer seedling planting bodies 4a, 4c to the left and right, The partition member 4b is a flat plate. Therefore, the partition member 4b divides the inside of the seedling planting body 4 into left and right, and forms two right and left seedling accommodating portions 4r and 4r in the seedling planting body 4. The left outer seedling planting body 4a and the right outer seedling planting body 4c are moved to a position where they contact the partition member 4b and a position moved to the left and right outward sides. The seedling storage parts 4r and 4r are opened and closed downward. The partition member 4b is sandwiched between the pair of outer seedling planting bodies 4a and 4c in a state where the seedling planting body 4 is closed, and the lower end portion of the partition member 4b is the outer seedling body. The planted bodies 4a and 4c are provided so as to protrude downward from the lower end portions.

  The left outer seedling planting body 4a extends in the form of an arm to the right at the front and rear sides of the upper part, and each tip part is rotatably connected to the right rotating shaft 4d. The front and rear sides of the upper part extend in the form of an arm to the left, and each tip part is rotatably connected to the left rotation shaft 4d. And the arm-like part extended to the right on both the front and rear sides of the upper part of the left outer seedling planting body 4a and the arm-like part extending to the left of the upper and lower sides of the upper part of the right outer seedling planting body 4c The left outer seedling planting body 4a and the right outer seedling planting body 4c of 4d and 4d are rotated on one side in conjunction with the operation on the other side, and both of them open and close at the same time. .

  Further, the left outer seedling planting body 4a and the right outer seedling planting body 4c are connected to each other in a direction in which the seedling planting body 4 is closed by a spring (not shown). Further, an opening / closing arm 31 for opening / closing the left outer seedling planting body 4a and the right outer seedling planting body 4c is rotatably connected to the base side portion of the second lifting arm 22, The distal end portion and the arm portion extending from the upper rear side of the left outer seedling transplant body 4a are connected by a connecting rod 32.

An intermediate portion of the opening / closing arm 31 is fixed to the tip of the second drive arm 28 that rotatably connects the second lifting arm 22 when the seedling planting body 4 is lowered to the lower end of its lifting locus. A cam 34 fixed to the shaft and a spring (not shown) that presses the open / close arm 31 against the cam 34 rotate the open / close arm 31 up and down. The body 4a pivots upward about the right pivot shaft 4d, and in conjunction with this, the right outer seedling planting body 4c pivots upward around the left pivot shaft 4d, so that The left and right seedling storage parts 4r, 4r are opened simultaneously.
And just before the seedling planting body 4 reaches the upper end of the lifting locus, the seedling planting body 4 is released from the opening action by the cam 34 and is closed.

  The pressure-reducing bodies 36, 36 are grounding bodies arranged in the vicinity of the left and right outer sides of the descending lower end portion of the seedling planting body 4, and in this example, are composed of grounded rolling wheels. The pressure-reducing bodies 36, 36 are attached to the rear side of the left and right support frames 37, 37 whose front part is rotatably attached to the middle part of the body frame 2b so as to be rotatable about the horizontal axis. . The rear portions of the left and right support frames 37, 37 have connecting portions 38 that are connected to each other, and the connecting portion 38 and a rear portion that is attached to a support member 39 provided on the rear side of the machine body so as to be movable up and down by setting a lowering lower limit position. The lower end portion of the support rod 40 is attached around the horizontal axis. The rear support rod 40 is equipped with a weight 41 for increasing the suppression force of the suppression members 36, 36.

Next, seedling planting work will be described.
An operator supplies seedlings one by one to the seedling containers 45 of the seedling supply device 42 that moves around. When the seedlings in the seedling container 45... Pass over the seedling planting body 4, the bottom lids 44 and 44 are opened, and two seedlings are simultaneously supplied into the seedling planting body 4.

  On the other hand, when traveling by planting work, the left and right mulchers 71 scrape the soil in the field and transport it toward the rear side of the body along the side of the body of the mulcher 71. Then, the transferred soil flows into the seedling planting site, so that the seedling planting body 4 fills the seedling planting site with the fill M before the seedling planting body 4 plants the seedling into the seedling planting site.

  The seedling planting body 4 to which the seedlings are supplied from the seedling container 45 is lowered by the operation of the link mechanism and pierces the seedling planting site where the tip of the ridge is filled as shown in FIG. Form a seedling planting hole (H), and then open the outer seedling planting body (left outer seedling planting body 4a, right outer seedling planting body 4c) in the left-right direction of the aircraft as shown in FIG. Release two seedlings to the field at the same time. At this time, since the soil that has been embanked flows into the hole that has been pierced by the seedling planting body 4, more soil flows into the vicinity of the seedling, so that the posture of the seedling can be made difficult to be disturbed. Then, after the seedling planting body 4 is lifted while closing the reed, the pressure-reducing wheel 36 brings the earth M from the left and right direction of the seedling body and the soil that has been brought to the left and right direction of the body by the seedling body 4 toward the seedling side. Stand the seedling planting posture. For this reason, since more soil can be covered around the seedling, the planting posture of the seedling can be further improved.

  Furthermore, by setting it as the structure of a pair of left and right dirt gathering bodies 71 as in the present embodiment, soil can be gathered at a row where seedling planting places are always provided during planting work. Moreover, since this earth gathering body 71 does not require special motive power, soil can be embanked in a seedling planting place with a simple configuration. Further, it is possible to arrange the aircraft in the left-right direction with a good balance, and the left-right balance of the aircraft can be improved.

  In addition, as shown in FIG. 12, in order to make effective the effect of reducing the soil pressure of the adjacent two seedling planting portions, in addition to the pair of left and right pressure wheels 36, 36, the pair of pressure reductions. By further providing one pressure-reducing wheel 36 ′ located between the rings 36, 36, the soil pressure-reducing effect can be more effectively performed. In particular, when the space between the two seedlings planted becomes narrow, the mud and soil that each of the pair of left and right pressure wheels 36, 36 wind up interact with each other, obstructing the rotation of the pair of left and right pressure wheels 36, 36. Become. However, in the configuration shown in FIG. 12, by simply adding a simple-shaped pressure-reducing wheel 36 ′, the pair of left and right pressure-reducing wheels 36, 36 can be smoothly rotated, and the soil pressure-reducing effect can be effectively performed.

  Further, as shown in FIG. 13, the laterally-opening type planting body 4 that opens in the left-right direction toward the advancing direction of the seedling transplanter, and the earthing conveyor 72 and the conveyor along the frame 2 b below the body frame 2. A seeder transplanting machine may be used in which a shooter 73 is provided on the top side of 72, and a soil discharge port at the lower end of the shooter 73 is disposed above the two lines of seedling plants planted.

  With such a configuration, when using the laterally-opening type planting body 4 to plant seedlings such as white onions at a narrow interval in parallel, the laterally-opening type planting body 4 is used as a seedling transplanter (not shown). The soil in the field is lifted to the side of the machine body), but the lifted soil is placed on the earthing conveyor 72 and dropped again from the top of the conveyor 72 via the shooter 73 into the basket. Since the lower part of the shooter 73 is between two seedling stocks immediately after planting, soil can be supplied to the straw in the vicinity of the seedling planting part. Although the soil discharge port at the lower end of the shooter 73 is between the seedling stocks, the shooter 73 may be shaped so as to be located in front of or behind the planted seedling.

The planted seedlings and the planted plants become lower than the other ridges due to the movement of the planting body 4, and when it rains, the rain that falls on the entire ridges concentrates between the vines, and the seedlings such as leeks that give off the humidity. There is a risk of hindering the growth. However, with the configuration shown in FIG. 13, the planted seedling can be laid so that the part between the stocks is higher than the other side, so that the rain that has fallen on the side can be guided to both sides between the stocks. The growth conditions are improved.
Moreover, if the pressure-reducing wheel 36 ′ is disposed behind the discharge port of the shooter 73, it is possible to more reliably ensure the retention after seedling planting.

  When planting two white onions etc., as shown in the cross-sectional view of the field scene on the cross-sectional side with respect to the seedling transplanting direction in FIG. It is desirable to use a method in which seedlings are planted in parallel on the tillage layer and the floor layer of the field scene obtained by plowing and forming.

  This is because seedlings such as white onions cause growth failure when placed in a humid state. As shown in FIG. 14, when the seedling planting part is set to a tilled layer whose center is raised in a mountain shape, the rainwater penetrates the surface of the tilled layer and permeates the valley side, and the slope of the floor layer is transmitted to the valley side. . Therefore, the top of the mountain of the cultivated layer where white onions are planted is kept at an appropriate humidity, and there is no risk of failure.

  The technology to supply soil to the seedling planting site before planting the seedlings of the present invention is not limited to normal cocoons, but the cocoons covered with multi-film, the surface of the cocoons are solidified with chemicals, and a film is formed on the cocoon surface. It can also be used in forming ridges.

  The latter method of solidifying the ridge surface or forming a film on the ridge surface is a pollution problem when disposing of used multi-film with respect to the seedling growth technology that covers multi-film such as vinyl chloride resin film on the conventional ridge. This is a technique for spraying a chemical solution that solidifies the surface of the bag instead of a multi-film. However, if the cocoons are hardened before seedling transplanting, seedling transplanting work becomes difficult. On the other hand, in the operation of spraying the chemical solution after the seedling transplanting operation, the seedling becomes an obstacle and the chemical solution spraying operation becomes difficult.

  Therefore, a spraying device for coagulating the surface of the cocoon with the following chemicals or forming a film on the heel surface, which can relatively easily perform seedling transplanting work and chemical solution spraying work, will be described.

  A spraying device 74 shown in FIG. 15 has a spraying pipe 75 for spraying a chemical solution that forms a film covering the surface of the bag, a chemical spraying port 76 provided in the pipe 75, and a pipe 77 for supplying the chemical solution to the spraying port 76. A liquid tank 78 is provided, and the spraying port 76 is disposed so as to cover a range other than the seedling planting portion on the upper surface of the cocoon.

  Further, the spraying device 74 is provided with a shield (plate) 79 that shields the periphery of the seedling planting site so that the sprayed liquid does not reach the seedling planting site. In this embodiment, the spraying device 74 is attached to a tractor 70 mounted with a cocoon molding machine 80, and is configured to harden the cocoon while forming the cocoon, but may be provided in a seedling transplanter.

  Further, the spraying device 74 will be described in detail. A chemical tank 78 for storing a chemical solution for forming a film covering the surface of the rod U is provided at the rear part of the tractor 70. Further, a chemical solution distribution pipe 75 and the pipe are disposed behind the rod forming machine 80. The chemical solution spray port 76 provided in 75 is provided. A plurality of chemical solution spray ports 76 for spraying a chemical solution sufficient to form a film covering the surface of the cocoon are provided in the chemical solution distribution pipe 75 except for the vicinity of the seedling planting site. At this time, it is desirable that a shielding plate 79 covering the vicinity of the top of the cocoon U is connected to the chemical solution spraying pipe 75, and when this shielding plate 79 is present, the chemical solution sprayed from the chemical solution spraying port 76 is planted in the seedling of the cocoon U. It does not hang around the club.

  When the chemical solution spraying device 74 having the above-described configuration is pulled by the tractor 70 and traveled while forming the bag U by the bag forming machine 80, the chemical solution in the chemical solution tank 78 is sprayed from the spray port 76 onto the surface of the bag U. At that time, other than the seedling planting site (article) on the upper surface of the cocoon, the chemical solution is applied, and the chemical solution is not sprayed near the seedling planting part of the cocoon U. Easy to do. Further, the presence of the shield 79 can prevent the chemical solution from being applied to the seedling planting site.

  Further, as another embodiment of the shielding plate 79, the configuration shown in the side view of FIG. 16A and the view taken along the line S-S in FIG. 16A of FIG. 16B may be used. In the configuration shown in FIG. 16, a rotating shaft 82a with the center of a cylindrical rotating body 82 oriented in the horizontal direction is provided, and a plurality of shielding bodies 84 with springs 83 are provided at equal intervals on the side circumferential portion thereof. . When the cylindrical rotating body 82 rotates around the rotation shaft 82a, the shield 84 that contacts the ground contact surface with the heel U covers the heel surface. At this time, even if the chemical liquid is sprayed from the chemical spray nozzle 85 to the ridge surface, no chemical solution is applied to the ridge surface covered with the shield 84, so that a film covering the surface of the ridge U is not formed on the ridge surface portion. .

  When the shield 84 is arranged in parallel on the side circumferential portion, as shown in FIG. 16C, a film is formed on the surface of the cocoon U so as to leave the seedling planting portion and cover the surface of the cocoon U.

  Moreover, although not shown in figure, the chemical | medical solution which forms the film | membrane which covers the surface of a cocoon may be sprayed from the chemical | medical solution spray nozzle provided in the seedling transplanter leaving the planting part of the cocoon seedling. It is desirable to provide a pair of right and left chemical spray nozzles behind the pressure-reducing wheels 36, 36 ', 36 (FIG. 12). The nozzle is fixed to the pressure wheel frame by welding or the like.

  Then, when growing before normal seedling planting work, the width of the perforated multi-dimension is opened and the surface of the cocoon is sprayed and solidified with the above-mentioned chemical solution, or the seedling planting part is suppressed with a pressing wheel after normal seedling planting Thereafter, seedling planting and chemical spraying are performed by spraying a chemical solution from the left and right sides of the seedling after planting to solidify the cocoon.

  Thus, seedlings can be planted without using a multifilm, the cost of the multifilm becomes unnecessary, and problems such as post-processing of the multifilm are eliminated.

  In addition, in the configuration where the spraying device of this embodiment is attached to a seedling transplanting machine for planting seedlings by inserting the beak into the beak, by applying soil to the planting position before planting the seedling, the soil is removed when the hole is drilled with the beak It is possible to prevent the entering seedling posture from being disturbed.

  The present invention can be used as a seedling transplanter for white leek and the like.

The side view of the seedling transplanting machine of the Example of this invention. The top view of the seedling transplanting machine of FIG. Explanatory drawing which shows the transmission structure of the seedling transplanter of FIG. The front view which shows the seedling supply part from the seedling supply apparatus of FIG. 1 to a seedling planting body. The side view which shows the operation mechanism and raising / lowering locus | trajectory of the seedling planting body of the seedling supply apparatus of FIG. FIG. 2 is a plan view of a dirt gathering body portion of the seedling transplanter of FIG. 1. The side view of the seedling planting body of the seedling supply apparatus of FIG. The rear view of the seedling planting body of the seedling supply apparatus of FIG. The cross-sectional rear view which shows a partial structure of the seedling transplant body of the seedling supply apparatus of FIG. The rear view which shows the planting state of the seedling planting body of the seedling supply apparatus of FIG. Sectional drawing which shows the mode of the seedling planting of the seedling supply apparatus of FIG. 1, and the pressure suppression after seedling planting. The figure explaining the function of the suppression body after the seedling planting body of the seedling supply apparatus of FIG. The perspective view of the structure for the soil gathering of the seedling planting body of the seedling supply apparatus of FIG. Sectional drawing of the seedling planting floor for seedling planting by the seedling supply apparatus of FIG. Explanatory drawing of the chemical spraying apparatus which forms the film | membrane which covers the surface of a ridge. Explanatory drawing of the shielding body of the chemical | medical solution spraying apparatus which forms the film | membrane which covers the surface of a bag.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling apparatus 2 Steering handle 2a, 2a Grip part 2b Airframe frame 3 Lifting link mechanism 4 Seedling planting body 4 'Seedling planting body 4N Pointed part of seedling planting body 4a, 4c Outside seedling planting body 4b Partition member
4d Rotating shaft 4r Seedling container 4Lr, 4Rr Seedling container 5 Engine 6 Rear wheel 7 Front wheel 8 Mission case 9 Transmission case 10 Axle 11 Arm
DESCRIPTION OF SYMBOLS 12 Lifting hydraulic cylinder 13 Balance 14 Rod 15 Right-and-left horizontal control hydraulic cylinder 16 Front wheel support frame 17 Axle 18 Planting transmission case 18a First case part
18b Second case portion 18c Third case portion 18 Fourth case portion 18e Fifth case portion
19 connecting shaft 20 first lifting arm 21 connecting shaft 22 second lifting arm
23 first swing arm 24 second swing arm 25 first drive shaft 26 first drive arm 27 second drive shaft 28 second drive arm 31 opening / closing arm 32 connecting rod 34 cam 36, 36 'pressure reducing (body) device 37 Support frame 38 Connecting portion 39 Support member 40 Rear support rod 41 Weight 42 Seedling supply device 44 Bottom lid 45 Seedling container 46 Seed container moving mechanism 67 Bottom lid support mechanism
70 tractor 71
72 Unloading conveyor 73 Shuta
74 Chemical solution spraying device 75 Spraying pipe 76 Chemical solution spraying port 77 Pipe 78 Liquid tank 79 Shield (plate)
80 畝 Molding machine 82 Cylindrical rotating body 82a Rotating shaft 83 Spring 84 Shielding body 85 Chemical spray nozzle C1 Traveling part system transmission transmission part C2 Working part system transmission transmission part C3 Stock change changing part G Planting field scene H Seedling hole K intermittent drive mechanism L operation tool M embankment N seedling S sensor MT lift trajectory during work travel ST lift trajectory d descend trajectory u rise trajectory v aircraft forward speed

Claims (3)

In a seedling transplanter equipped with a seedling planting device for planting a seedling while forming a seedling planting hole in a farm field on a traveling vehicle body provided with the traveling device 1,
A seedling transplanting machine provided with a soil supply device for supplying soil to a place where the seedling planting hole is formed in advance before the seedling planting apparatus forms the seedling planting hole.   The seedling planting device is provided with a beak-like seedling planting body 4 that moves up and down along a set trajectory and is formed so that its lower part can be opened and closed in the left-right direction toward the aircraft traveling direction. 2. The seedling transplanting machine according to claim 1, further comprising a pressure-reducing device (36, 36 ') for bringing soil around the planted seedling to the seedling side after planting the seedling.   2. The seedling transplanting machine according to claim 1, wherein the soil supply device is provided with a soil gathering body 71 for bringing soil in a field to a place where a seedling planting hole is formed at a lower portion of the traveling vehicle body.

Images