JP2020031612A5 - - Google Patents

Description

Transplanter

The present invention relates to a transplanter for transplanting vegetable seedlings such as onions and lettuce into a field.

BACKGROUND ART Conventionally, there is known a seedling transplanting machine for planting seedlings supplied from a seedling supplying device in which a plurality of seedling containers move around (see, for example, Patent Documents 1 and 2). ).

These transplanters are provided in the link holder of the elevating link mechanism, and are configured so that the planting device can be moved along an adjustment bar that protrudes in the left-right direction, according to the conditions such as the variety of the crop and the cultivation area, The right and left intervals of the seedlings, that is, the so-called striations are set appropriately.

Registration No. 5348219 Registration No. 5712461

However, in the transplanter of Patent Document 1, since the elevating link mechanism is located at a position that restricts the lateral movement of the planting device, particularly the movement toward the side where the striation is narrowed, the planting work in a narrow striation above a certain level. There is a problem that cannot be dealt with.

Further, in the transplanter of Patent Document 2, since the moving mechanism of the planting device is configured to move left and right along the adjustment bar that penetrates the elevating link mechanism, the elevating link mechanism does not hinder the movement. However, there is a problem that the left and right moving mechanisms come into contact with each other when they are moved to the side where the striations become narrower, and thus it is not possible to cope with the planting work in the striations above a certain level.

In view of the problems of the conventional transplanter described above, an object of the present invention is to provide a transplanter capable of freely adjusting the distance between the left and right implanting devices without interfering with a lifting link mechanism or the like. To do.

In order to solve the above problems, the following technical measures have been taken.

請 Motomeko according to one invention, seedling supply device for supplying seedlings (43), and planting a hopper to put the planting example seedlings fed from該苗feeder (43) (20a, 20b), with the plant in transplantation machine comprising a hopper (20a, 20b) elevating mechanism for raising and lowering (21), rotatably provided to the rear side of the elevating mechanism (21) to the link holder (210), a rear portion of the link holder (210) A notch (221) is formed on the side, and a connecting member (209) for connecting the planting hoppers (20a, 20b) to the link holder (210) is arranged in the notch (221), and the link holder (210) is provided. An adjustment support plate (222) is provided on the adjustment support plate (222), and a long hole (224) is formed in the adjustment support plate (222) in the left-right direction. (222), and the connecting member (209) is capable of moving the planted hoppers (20a, 20b) in the left-right direction by releasing the connection between the adjustment support plate (222) and the hopper holder (225). The transplanter is characterized in that the adjustment support plate (222) and the hopper holder (225) are connected to each other so that the left and right positions can be fixed.

In the invention according to claim 2, the adjustment support plate (222) is attached to the cutout portion (221), and an adjustment space portion (223) is provided between the cutout portion (221) and the adjustment support plate (222). The transplanter according to claim 1, wherein the transplanter is formed .

The transplanter according to claim 1 or 2, wherein the left and right central portions of the adjustment support plate (222) are located at the rear of the elevating mechanism (21).

In the invention according to claim 4, the lifting mechanism (21) comprises an upper link arm (21a) and a lower link arm (21b) , and the upper link arm (21a) is attached to the link holder (210). The transplanter according to claim 1 or 2, wherein the position to be set is on the front side of the machine body with respect to the position where the lower link arm (21b) is attached to the link holder (210).

The invention according to claim 5, the transmission case (26) provided for vertically driving said elevating mechanism (21), before SL lifting mechanism (21) provided with a lifting crank to the upper and lower pivot (215), elevating crank ( 215) is configured to rotate by receiving driving force from the transmission case (26), and is provided with a connecting plate (216) for connecting the elevating crank (215) to the elevating mechanism (21). The connection position of the (216) and the lifting crank (215) is configured to be connected to the lower side of the machine than the lifting mechanism (21), and the connecting plate (216) is inside the machine than the lifting mechanism (21). was transplanter according to claim 1 or 2, characterized in that located.

(Delete)

According to the invention of claim 1, the connecting member (209) allows the planted hoppers (20a, 20b) to move left and right, thereby changing the left and right positions of the planted hoppers (20a, 20b) between the plantlets. Can be adjusted, so that it is possible to work between plants that are suitable for the seedling type and cultivation conditions.

Further, since the connecting member (209) is provided in the cutout portion (221) formed in the link holder (210), the connection member (209) can be operated using the space of the cutout portion (221), so that the planting The movable state and the fixed state of the hoppers (20a, 20b) can be easily switched, and the work efficiency is improved.
Further, by forming the elongated hole (224) in the left-right direction, it becomes easy to grasp the range in which the hopper holder (225) is moved, so that the hopper holder (225) may fall off from the left and right ends of the adjustment support plate (222). Is prevented and work efficiency is improved.

According to the invention according to claim 2, in addition to the effect of the invention according to claim 1 , the adjustment space portion (223) is formed between the front and rear of the notch portion (221) and the adjustment support plate (222). A sufficient space for operating the member (209) can be secured, the movable state and the fixed state of the planted hoppers (20a, 20b) can be easily switched, and the work efficiency is improved.

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According to the invention of claim 3, in addition to the effect of the invention of claim 1 or 2, the left and right central parts of the adjustment support plate (222) are located at the rear part of the elevating mechanism (21), so that the planting hopper A wide adjustment range for the left and right positions of (20a, 20b) can be secured in the left and right direction.

Further, since the elevating mechanism (21) does not hinder the lateral movement of the planted hoppers (20a, 20b), the adjustment range of the lateral positions of the planted hoppers (20a, 20b) can be further ensured.

According to the invention of claim 4, in addition to the effect of the invention of claim 1 or 2, the lower link arm (21b) is linked at the position where the upper link arm (21a) is mounted on the link holder (210). By setting the hopper with plants (20a, 20b) forward near the top dead center of the ascending/descending trajectory by setting the front side of the machine body with respect to the position where it is mounted on the holder (210), the supplied seedlings are planted by tilting. The seedlings can be reliably planted in the field because they can be guided to the lower inside of the attached hoppers (20a, 20b).

Further, since the planted hoppers (20a, 20b) can be changed from the backward tilted posture to the forward tilted posture near the bottom dead center of the ascending/descending trajectory, the planted hoppers (20a, 20b) form holes in the field scene. The range before and after the planting is suppressed, and it is possible to prevent the planted seedlings from falling down or tilting to cause poor growth.

According to the invention of claim 5, in addition to the effect of the invention of any one of claims 1 to 4, the connecting plate (216) and the elevating crank (215) are arranged below the machine body with respect to the elevating mechanism (21). By connecting them, the center of gravity can be set closer to the lower side, so that the machine body is less likely to tilt forward and backward due to the weight of the members, etc., and the planting depth and planting posture of the seedlings are stabilized .

Further, since the connecting plate (216) is positioned inside the machine body with respect to the lifting mechanism (21), the lifting mechanism (21) does not receive a load directly from the lifting crank (215), and thus the lifting mechanism (21). The durability of is improved .

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Left side view of transplanter Right side view of transplanter Rear view of transplanter Top view of transplanter Side view showing the lifting mechanism and the inter-row adjustment mechanism of the left and right planting hoppers FIG. 3 is a plan view showing a lifting mechanism and a mechanism for adjusting the distance between the left and right planting hoppers. Rear view showing the lifting mechanism and the inter-row adjustment mechanism of the left and right planting hoppers Perspective view showing the lifting mechanism and the inter-row adjustment mechanism of the left and right planting hoppers Rear view showing essential parts of opening/closing mechanism of planting hopper (A) A rear view of the main part showing the inter-row adjustment plate, (b) A front view of the main part showing the inter-row adjustment plate Side view showing a planting hopper equipped with a seedling guide of another configuration example The top view which shows the star wheel which guides a seedling container by an arc part. Side view showing a star wheel guiding the seedling container with an arc (A) A side view of an essential part showing that a bellows guide is arranged between a seedling drop supply position and a planting hopper in a raised state, and (b) a bellows between a seedling drop supply position and a planted hopper in a lowered state. Side view of essential parts showing placement of guides Right side view of essential parts showing internal structure of stock switch gear case Left side view of the main part showing the internal structure of the stock switch gear case Front view of essential parts showing internal structure of stock switch gear case Rear view of essential parts showing internal structure of stock switch gear case Left side view of essential parts showing stock switch gear case Rear view of essential parts showing stock switch gear case Rear view of the main part showing the opening state of the rear opening of the stock switch gear case (A) Side view showing the first inter-plant shifter, (b) Side view showing the second inter-plant shifter Schematic diagram showing the first and second sliding stoppers (A) A side view of essential parts showing a state in which the lifting hydraulic cylinder can expand and contract, and (b) A side view of essential parts showing a state in which contraction of the lifting hydraulic cylinder is restricted. Side view of essential parts showing another configuration example of a lock arm that regulates contraction of the lifting hydraulic cylinder Side view of essential parts showing boarding detection of worker

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a left side view showing a transplanter 10 for transplanting onion seedlings as an example of a transplanter according to an embodiment of the present invention, FIG. 2 is a right side view of the transplanter 10, and FIG. 3 is a transplanter. 10 is a rear view of FIG. 10, and FIG. 4 is a plan view of the transplanter 10.

In the following description, the side on which the steering handle 47 is arranged is the rear side, and the opposite side, that is, the side on which the engine 41 is arranged is the front side. The right-hand side is the right side and the left-hand side is the left side when facing the front of the machine.

The transplanter 10 according to the present embodiment includes a traveling vehicle body 40 that allows the vehicle body to travel forward, a steering handle 47 provided on a rear portion of the traveling vehicle body 40, and a planting device 42 for planting seedlings in a field. A seedling supply device 43 for supplying seedlings to the planting device 42 is provided.

The traveling vehicle body 40 includes an engine 41, a pair of left and right drive wheels that are driven and rotated by the power of the engine 41 transmitted thereto, and a pair of left and right front wheels 45 rotatably supported in front of the rear wheel 44. Equipped with.

A mission case 39 is arranged behind the engine 41. The mission case 39 has a case portion extending from the left side portion thereof to the left side of the engine 41, and this case portion is connected to the left side portion of the engine 41. The output shaft of the engine 41 is inserted into this case portion to transmit power to the transmission mechanism in the transmission case 39.

A front portion of a traveling transmission case 38 that is long in the front and rear direction is rotatably attached to both left and right sides of the transmission case 39. Specifically, an axle case that rotates integrally with the traveling transmission case 38 is provided on the inside of the fuselage in the front portion of the traveling transmission case 38, and the axle case 11 is rotated to both left and right sides of the mission case 39. The traveling transmission case 38 is rotatably attached to the left and right sides of the transmission case 39. Then, the rear wheels 44 are mounted on the rear wheel axle 12 projecting to the rear side of the traveling transmission case 38.

The tips of the wheel drive shafts extending from the mission case 39 to the left and right sides are inserted into the front rotation shaft center position of the traveling transmission case 38, and the traveling unit system speed change transmission unit in the mission case 39 is inserted. The power for traveling after passing through is transmitted to the transmission mechanism in the transmission case 38 for traveling. The traveling power is transmitted to the rear end axle 12 of the traveling transmission case 38 via the transmission mechanism in the traveling transmission case 38, and the rear wheels 44 are driven and rotated.

The left and right side wheels (not shown) provided in the mission case 39 can be used to interrupt the drive of the left and right rear wheels 44. Therefore, when the vehicle body is turned, the left and right rear wheels 44 on the inside of the turn are not driven by the side clutch so that the vehicle can smoothly turn.

Further, driving means for vertically rotating, which moves the rear wheel 44 up and down with the front side of the traveling transmission case 38 as a pivot, is connected to the traveling transmission case 38. Specifically, an upwardly extending arm 13 is integrally attached to an attachment portion of the transmission case 38 for traveling to the mission case 39, and the arm 13 is fixed to the mission case 39. It is connected to both left and right sides of the connecting body attached to the tip of the piston rod. One of the left and right sides (right side) is connected by a connecting rod, and the other side (left side) is connected by a left and right horizontal control hydraulic cylinder capable of expanding and contracting according to the inclination of the machine body.

When the lifting hydraulic cylinder 300 operates and its piston rod projects rearward of the machine body, the left and right arms 13 rotate rearwardly, and accordingly, the traveling transmission case 38 rotates downward, and the machine body rises. .. On the contrary, when the piston rod of the lifting hydraulic cylinder 300 moves to the front of the machine body and retracts into the cylinder, the left and right arms 13 rotate forward, and accordingly the traveling transmission case 38 rotates upward. , The aircraft descends.

The lifting hydraulic cylinder 300 is operated by a sensor 14 which is grounded on the ridge surface and operates in accordance with a change in the vertical distance between the machine body and the ridge surface. The operation of the sensor 14 is an operation of detecting the height of the ridge upper surface with reference to the position of the machine body, and based on the detection operation of the sensor 14, the machine body is configured to have a set height corresponding to the height of the ridge surface for raising and lowering. The hydraulic cylinder 300 operates.

Further, when the left/right horizontal control hydraulic cylinder expands/contracts, the left arm 13 connected to the left/right horizontal control hydraulic cylinder rotates to vertically move only the left rear wheel 44 to tilt the machine body left/right. .. The left and right horizontal control hydraulic cylinder is configured to operate based on the detection result of the sensor that detects the left and right inclination of the machine body with respect to the left and right horizontal machine, and to make the machine body horizontal and horizontal.

The lifting hydraulic cylinder 300 is expanded and contracted by the detection by the sensor 14 or the operation of an operation lever (not shown) provided at the rear part of the machine body to change the vehicle height. However, when the vehicle is stopped for a long time, a load due to the weight of the machine body is applied to the lifting hydraulic cylinder 300, and the hydraulic oil naturally leaks, so that the lifting hydraulic cylinder 300 contracts and the vehicle height becomes low. Sometimes. In particular, when the vehicle height is stopped for a long period of time, or when the vehicle height is lowered during storage in a warehouse or the like, the sensor 14 and the lower ends of the planting hoppers 20a and 20b may come into contact with the floor surface and be deformed, or the floor may be deformed. It may damage the surface.

In order to prevent this, as shown in FIGS. 24(a) and 24(b), a fixed portion 301 of the lifting hydraulic cylinder 300 and an end portion of a sliding rod 302 which is slid inside the fixed portion 301 and slides are supported. A lock arm 304 is provided between the front and rear of the hydraulic balance 303 to be rotatable up and down. The lock arm 304 has a rotation base portion on the hydraulic balance 303, and arranges the cooperation cable 305 between an upper portion of the hydraulic balance 303 closer to the fixed portion 301 than the rotation base portion and the operation lever.

When the machine body is stored, the operating lever is operated to the maximum position, the lifting hydraulic cylinder 300 is extended to the maximum extent, and the traveling transmission case 38 is rotated to maximize the vehicle height. At this time, the cooperation cable 305 is routed so that the lock arm 304 pivots downward and enters between the front and rear of the fixed portion 301 and the hydraulic balance 303.

As a result, it is possible to prevent the hydraulic oil from leaking and the lifting hydraulic cylinder 300 from contracting, so that the vehicle height of the machine body can be maintained at the maximum, and the sensor 14 and the planted hopper 20a due to the reduction of the vehicle height, It is possible to prevent breakage of 20b or damage to the floor surface.

When the operation lever is operated to the elevation operation position, the linkage cable 305 is pulled to rotate the lock arm 304 upward, whereby the elevation hydraulic cylinder 300 can be expanded and contracted, and the vehicle height is adjusted up and down.

As shown in FIG. 25, the lock arm 303 has a fan shape, and multi-stage lock portions 303a, 303b, 303c... With different distances from the rotation support shaft to the end portions are formed on the end portion side, and locking can be performed in multiple stages. You may comprise. In the multi-stage lock parts 303a, 303b, 303c,..., the upper part of the machine body has a longer distance from the rotation axis to the end part, and the lower part of the lock part has a smaller turning angle of the lock arm 303, and the lifting hydraulic pressure is increased and decreased. The cylinder 300 is configured to be prevented from contracting.

As a result, the vehicle height other than the maximum height can be maintained, so that it is possible to accommodate the machine body even in the accommodation space having a narrow vertical width.

Vertically long vertical frames 17 are attached to both left and right sides of a horizontal frame 16 which is rotatably attached around an axial center in the front-rear direction below the engine 41. Is rotatably attached to the front wheel axle 18 fixed to the side of the lower end of the. Therefore, the left and right front wheels 45 can freely roll around the longitudinal center axis in the left-right center of the machine body. Further, the vertical frame 17 is provided so as to be adjustable up and down with reference to the left and right side portions of the horizontal frame 16, so that the height of the front wheel 45 can be adjusted.

The steering handle 47 is provided on the rear part of the machine body, and is located on the rear side of the machine body with respect to the rear wheel axle 12 of the rear wheel 44. Specifically, it is attached to the rear end of the machine body frame 19 whose front end is fixed to the mission case 39.

The machine body frame 19 extends rearward at the left-right center of the machine body, and extends obliquely rearward and upward from the front-rear intermediate portion.

The steering handle 47 extends rearward from the rear end of the machine frame 19 to the left and right, and each rear end serves as a grip portion of the steering handle 47.

In addition, in FIG. 2, the grip portion is divided into left and right, but the left and right rear end portions of the steering handle 47 may be connected to each other left and right, and the connected portion may be used as the grip portion.

The planting device 42 includes a plurality of beak-shaped planting tools whose tip ends are directed downward, and a planting device is vertically moved to a position where the lower end of the planting device is above the field scene and below the field scene. A vertically moving mechanism 21 for moving and a closed state in which the lower end of the beak-shaped planting device is closed to receive seedlings from above and the seedlings can be housed inside, and the lower end of the planting device is opened left and right and housed inside. And an opening/closing mechanism for opening/closing the planting device in an open state in which the seedlings can be released downward.

As shown in FIGS. 1 to 8, the planting device 42 of the present embodiment has a double-row planting configuration in which a first planting hopper 20a and a second planting hopper 20b are arranged side by side. The first hopper with planting 20a and the second hopper with planting 20b are respectively mounted on vertical movement mechanisms 21 provided on both left and right sides of the transmission case 26 that is transmitted from the mission case 39.

The vertical movement mechanism 21 is composed of a pair of upper and lower link arms 21a and 21b. The upper and lower link arms 21a and 21b are mounted on the transmission case 26 such that the front end portions thereof can be rotated up and down, respectively, and the rear ends thereof can be rotated. The part side is mounted between the left and right link holders 210, 210 so as to be vertically rotatable. The front end portion of the upper link arm 21a is provided at a position separated from the rotation axis of the non-circular cam 211 rotatably mounted on the transmission case 26 toward the outer peripheral edge side, and is vertically moved by the vertical movement mechanism 21. , 20b are swung from the front to the rear.

The transmission case 26 is fixed to the upper portion of a mounting member whose lower portion is fixed to the machine body frame 19. Further, the rear end portions of the planting hoppers 20a, 20b and the vertical movement mechanism 21 are located on the rear side of the vehicle body with respect to the rear end portions of the left and right rear wheels 44, 44 in a side view, Is a space without other members.

In particular, the position where the front end of the upper link arm 21a is attached to the non-circular cam 211 is set in the static locus of the planting hoppers 20a and 20b from the time when the seedlings are received until the bottom dead center is reached. The position 20b is changed from the backward tilted posture to a posture substantially vertical to the field scene, and is changed to a position changed from the vertical posture to the forward leaned posture when the rising starts from the bottom dead center.

As a result, in the movement loci of the planting hoppers 20a, 20b, it is possible to shorten the time and the distance to enter the soil for planting seedlings, so that the size of the planting holes formed by the planting hoppers 20a, 20b in the field can be reduced. The small size prevents seedlings from falling and disturbing the planting posture.

Moreover, since the planting hoppers 20a and 20b are in a posture in which the planting hoppers 20a and 20b are largely tilted in the vicinity of the top dead center, the seedlings to be planted by the worker are planted at the drop supply position of the seedling supply device 43 which is transported to a predetermined position and dropped. Since the upper ends of the hoppers 20a and 20b can be brought close to each other, seedlings are not supplied into the planted hoppers 20a and 20b, and it is possible to prevent shortage of the plants.

When the planting hoppers 20a, 20b are inclined when the seedlings are dropped and supplied, the seedlings that have entered the planting hoppers 20a, 20b are slid and moved from the upper side to the lower side. Therefore, even if the seedlings stay in the planting hoppers 20a and 20b and the planting hoppers 20a and 20b enter the soil, the seedlings are not planted and the occurrence of stockout is prevented.

In addition, between the non-circular cam 211 and the upper link arm 21a, an adjusting plate 212 having a plurality of arc-shaped adjusting slots 212a is formed, and a fixing member such as a bolt is inserted into the adjusting slots 212a. By changing the position, the operator can adjust the tilt angle of the planted hoppers 20a and 20b to the front and rear.

As a result, the front and rear inclination angles of the planting hoppers 20a, 20b can be appropriately adjusted according to the working conditions such as the length of the seedlings and the planting depth, so that the seedlings can be planted in a posture and a planting depth suitable for growing. , Seedlings grow better.

The up-and-down driving force of the up-and-down moving mechanism 21 is transmitted from the up-and-down driving shaft 213 provided on the rear side of the machine body with respect to the rotation shaft of the non-circular cam 211. An unequal circular elevating cam 214 is mounted on the elevating drive shaft 213, and an elevating crank 215 for vertically rotating the upper link arm 21a is provided between the elevating cam 214 and the upper link arm 21a. The lower link arm 21b rotates up and down in conjunction with the vertical movement of the upper link arm 21a, and the up-and-down moving mechanism 21 is a parallel link.

The elevating crank 215 has one end attached to a rotating shaft extending from the elevating cam 214 to the outside of the machine body, and the other end attached to a connecting plate 216 provided inside the machine body of the upper link arm 21a to trace loci of the planting hoppers 20a and 20b. Is suitable for planting seedlings and receiving seedlings from the seedling supply device 43.

The connecting plate 216 is arranged to project downward from the upper link arm 21a and the lower end thereof is positioned slightly above the upper end or the upper end of the lower link arm 21b. The other end of the elevating crank 215 is mounted near the section.

With the above configuration, since the lifting crank 215 can be arranged closer to the lower part of the machine body, the center of gravity is closer to the lower part of the machine body, so that the machine body is less likely to tilt back and forth due to the weight of the members, etc. Stabilize.

Further, by mounting the other end of the lifting crank 215 to the connecting plate 216, the upper link arm 21a is configured not to be directly loaded by the lifting crank 215, so that the durability of the upper link arm 21a is improved. ..

As described above, since the load applied by the lifting operation is small, it is preferable that the upper and lower link arms 21a and 21b be formed of square pipes having a hollow inside. When the upper and lower link arms 21a and 21b are lightweight, the load transmitted to the transmission case 26 through the elevating crank 215 and the elevating cam 214 is small, and the durability of the transmission case 26 is also improved.

In addition, the rising speed does not become too slow and the descending speed does not become too fast due to the weight, the ascending/descending loci of the planting hoppers 20a, 20b are stable, and the planting posture and planting depth of the seedlings are stable. It grows well.

Further, by disposing the elevating cam 214, the elevating crank 215, and the connecting plate 216 between the left and right sides of the transmission case 26 and the vertical movement mechanism 21, the upper and lower link arms 21a and 21b do not interfere with each other when vertically rotating. Both the upper and lower link arms 21a and 21b can be formed in a straight line, and the configuration can be simplified and the strength can be maintained.

The upper and lower link arms 21a and 21b have different front and rear lengths so that the raising and lowering and the forward and backward tilting of the planted hoppers 20a and 20b are more suitable for planting seedlings. In this case, the upper link arm 21a is shorter than the lower link arm 21b.

The rear end portions of the upper and lower link arms 21a and 21b are mounted on the left and right of the left and right link holders 210 and 210 at a vertical interval, as described above. At this time, the mounting position of the upper link arm 21a is set to the lower side. The link arm 21b is located on the front side of the machine body with respect to the mounting position.

As a result, when the planted hoppers 20a, 20b are raised near the top dead center, the distance between the fulcrums on the rear end side of the upper and lower link arms 21a, 21b becomes long, and the back and forth swing amounts of the planted hoppers 20a, 20b are increased. Therefore, the front and rear position amounts above the planting hoppers 20a and 20b are less likely to change in the vicinity of the drop supply position of the seedling supply device 43, and the failure to receive the seedlings is reduced.

Further, when the planted hoppers 20a, 20b rise to the vicinity of the bottom dead center, the distance between the fulcrums on the rear end side of the upper and lower link arms 21a, 21b becomes shorter, and the back-and-forth swing amount of the planted hoppers 20a, 20b becomes smaller. Since it becomes large, the planted hoppers 20a and 20b can be changed from the rearwardly tilted posture to the forwardly leaned posture, and the planted hoppers 20a and 20b are prevented from coming into contact with the seedlings and falling or being damaged.

An open/close arm 218 having an open/close wire 220 for actuating an open/close mechanism for opening/closing the planted hoppers 20a, 20b according to the ascending/descending position is attached to the front end of the lower link arm 21b. Attach to. A contact roller 219 is provided on the rear side of the upper part of the opening/closing arm 218, which comes into contact when a portion of the non-circular cam 211 having a diameter equal to or larger than a certain value passes.

When the non-circular cam 211 comes into contact, the opening/closing arm 218 rotates forward and pulls the opening/closing wire 220, so that the planting hoppers 20a and 20b close, and when the non-circular cam 211 comes out of contact, the opening/closing arm 218 rotates backward. When the open/close wire 220 is loosened by moving, the planting hoppers 20a and 20b are opened.

In addition, the planting hoppers 20a and 20b are opened during planting of seedlings from the middle of descending and starting to rise, and are closed during planting of seedlings and starting to rise, and then receiving and descending seedlings again. The shape of the non-circular cam 211 is corresponding.

On the rear side of the left and right hopper holders 210, 210, cutouts 221 are formed in a U shape opening to the rear side of the machine body. It is assumed that the constituents of the hopper holder 210 project rearward of the machine body at the upper and lower portions of the cutout portion 221.

At the rear portions of the left and right hopper holders 210, 210, a U-shaped striation adjustment plate 222 having an opening on the front side of the machine body is provided as shown in FIGS. 5 and 10. Left and right cut grooves 222b are formed in the upper and lower front protrusions 222a of the inter-row adjustment plate 222 at substantially the same left and right intervals as those of the left and right hopper holders 210, 210, and the cut grooves 222b are formed. ...Each is inserted into the hopper holders 210, 210 and mounted. At this time, a square adjustment space 223 is formed between the cutout portion 221 and the inter-row adjustment plate 222 in a side view.

The striation adjusting plate 222 is located at the center of the left and right behind the upper and lower link arms 21a and 21b that form the vertical movement mechanism 21, and projects substantially the same length in the left and right direction. On the wall surface of the, the inter-slot adjustment elongated hole 224 is formed in the left-right direction.

A hopper holder 225 for supporting the planted hoppers 20a and 20b on the rear side of the machine body is provided at the rear portion of the inter-row adjusting plate 222. The hopper holder 225 has an upper portion bent toward the front of the machine body in an L shape to form a connecting portion 225a, and on both left and right sides, projecting hoppers 20a and 20b and fastening members 209 such as bolts are projected to the rear side of the machine body. The connecting portions 225b and 225b that are connected to each other are formed. Further, one or a plurality of mounting holes (not shown) for fastening members 209 such as bolts are formed in the vertical wall surface below the connecting portion 225a and above the connecting portions 225b and 225b. In the hopper holder 225, the L-shaped connecting portion 225a is arranged along the upper side and the rear side of the inter-row adjusting plate 222 in a side view, and the inter-row adjusting elongated hole 224 and the mounting hole are located at the same vertical height. Mounting. Accordingly, when the fastening member 209 is removed or loosened, the hopper holder 225 can be slid in the left-right direction along the inter-row adjustment plate 222.

When adjusting the left and right planting intervals of the left and right planting hoppers 20a and 20b, that is, the striations, the fastening member 209 is removed or loosened as described above, and the hopper holder 225 is set within the left and right width of the striation adjustment plate 222. It is determined by moving it to the position (1) and attaching or tightening the fastening member 209.

The fastening member 209 is inserted through the mounting hole of the hopper holder 225, and is screwed into or out of a nut provided on the adjustment space 223 side so that it can be switched between the position fixing state and the inter-row adjusting state.

In the above configuration, since the fastening member 209 is inserted into the inter-slot adjustment elongated hole 224, the fastening member 209 serves as a stopper and the hopper holder 225 can be prevented from dropping from the left and right end portions of the inter-spacing adjustment plate 222.

In the striation adjustment structure of the present case, which is provided with the left and right planting hoppers 20a and 20b, the left and right planting hoppers 20a and 20b have the largest stride spacing because the left and right striation adjusting plates 222 and 222 can have a large left and right spacing. Even when the hopper holders 225 and 225 are moved to the inner ends of the body of the inter-row adjusting plates 222 and 222, the left and right planting hoppers 20a and 20b do not interfere with each other. As a result, the distance between the threads can be set narrower, and it is possible to cope with a wider variety of working conditions than before.

Further, since the striation adjustment plate 222 is provided at the rear part of the vertical movement mechanism 21, it is possible to prevent the striation adjustment plate 222 from interfering with the lateral movement of the planting hoppers 20a and 20b. The line spacing can be set in a wider range across the width, and it is possible to cope with various working conditions.

In addition, the adjustment space 223 is formed between the front and rear of the link holders 210 and 210 and the opening of the striation adjusting plate 222, so that the operator is behind the left and right rear wheels 44, 44 and outside the machine body. Since the work of tightening and loosening the nut can be performed in the space portion of, the work of adjusting the spacing can be efficiently performed.

If the thickness of the nut is less than half of the front-rear width of the adjustment space 223, a work space for inserting a tool for nut attachment/detachment in the left/right center part of the inter-row adjustment plate 222, that is, behind the upper and lower link arms 21a, 21b. Therefore, the position where the planting hoppers 20a and 20b cannot be fixed does not occur within the left and right width of the spacing adjusting plate 222, and the required spacing can be set.

In the above-mentioned striation adjusting mechanism, the left and right planting hoppers 20a and 20b are basically moved in symmetrical directions. For example, when the line spacing is 70 cm, the left and right planting hoppers 20a and 20b are moved to the left and right outer ends of the line spacing adjusting plates 222 and 222, and when the line spacing is 30 cm, the left and right planting hoppers are attached. The hoppers 20a and 20b are respectively moved to the left and right inner end portions of the strip adjusting plates 222 and 222. The other striations are set by moving them to any positions within the left and right widths of the striation adjustment plates 222, 222, but it should be easy for the operator to visually understand how many centimeters the striations are set. It is advisable to provide an indicator on the strip adjusting plates 222 and 222. This indicator is to be pasted with a sticker, written, or engraved on the inter-row adjusting plate 222.

However, depending on the type of crop and the field environment, it is possible to plant more than two, for example four, wide ridges. When one row of ridges is reciprocated and four rows are planted, both the left and right planting hoppers 20a and 20b are arranged on the left and right sides of the row adjustment plates 222 and 222 in order to offset the planting position to the left and right sides in the traveling direction of the ridges. It is possible to plant seedlings even if they are moved to. As a result, it is possible to deal with even more diverse work conditions.

The planted hoppers 20a and 20b cover a hopper cover 226 above the hopper holder 225 so as to face the rear side of the machine body, and form open spaces by notching the upper surfaces on the rear side of the machine body and on the left and right sides. Further, left and right rotation supporting shafts 227, 227 are provided respectively in front of and behind the rear wall surface of the hopper holder 225 and the rear wall surface of the hopper cover 226, and the rotation supporting shafts 227, 227 respectively have rotating arms. 228 and 228 are rotatably attached. Most of the left and right rotating arms 228, 228 are projected upward from the open space.

The left and right rotation support shafts 227, 227 are arranged on the lower side of the machine body than the cutout portions 221 of the link holders 210, 210 and the inter-row adjustment plate 222.

As a result, the rotation support shafts 227, 227 on the side of the hopper holder 225 can be arranged on the lower side of the striation adjusting plate 222 and without a large front-rear spacing from the link holders 210, 210, so that the planted hoppers 20a, 20b can be arranged. The front and rear positions do not shift too far behind, and a compact structure can be achieved.

Of the rotary arms 228, 228, the cable outer of the opening/closing wire 220 is attached to the outside of the machine body, and the cable inner is connected to the inside of the machine body. The pulling and loosening of the opening/closing wire 220 causes the left and right rotary arms 228, 228 to move. 228 is configured to rotate.

Further, the left and right pivoting support shafts 227, 227 are respectively mounted with U-shaped opening/closing arms 230, 230 for mounting a pair of left and right hopper stays 229, 229 on the lower side so as to be pivotable to the left and right. The opening/closing arms 230, 230 have a shape that covers the front and rear and the upper side of the hopper stays 229, 229. As shown in FIG. 9, the upper and lower sides of the front and rear surfaces are gears in which unevenness in the left and right direction is alternately meshed in the vertical direction. Portions 230a and 230a are formed, respectively. The gear portions 230a and 230a mesh with each other to synchronize the amount of rotation of the opening and closing arms 230 and 230 when the arms are opened and closed, so that the seedlings can be opened evenly from the planting hoppers 20a and 20b.

Support pins 232 and 232 are provided on the left and right sides of the front and rear surfaces of the opening and closing arms 230 and 230, respectively, and the left and right supporting arms 232 and 232 are brought close to each other. The springs 233 that urge in the direction are respectively arranged in the front and rear.

Further, the hopper stays 229, 229 connect the front and rear upward bent portions to the front and rear portions of the opening/closing arms 230, 230, and a pair of left and right hopper constituent bodies 231 and 231 are provided on the inside of each body at the bottom in the front and rear direction. A semi-circular cutout (not shown) for mounting is formed. The left and right hopper components 231 and 231 are configured such that when they are opened, the lower end portions thereof are widened in the left-right direction, and when they are closed, their end faces are substantially evenly contacted vertically. In addition, the vicinity of the lower ends of the hopper structures 231 and 231 is formed in a plate shape to reduce the resistance when entering the soil.

Further, the hopper cover 226 is provided with an opening (not shown) having substantially the same diameter as the uppermost parts of the left and right hopper components 231 and 231 or a slightly smaller diameter, and the seedling supply device 43 supplies the opening. The seedling guides 234 for guiding the seedlings to be inserted into the left and right hopper components 231 and 231 are inserted and attached. The diameter of the left and right hopper structures 231 and 231 near the upper end is larger than the diameter from the upper end to the lower side.

In the seedling guide 234, the lower side of the hopper cover 226 has substantially the same diameter, and the upper side of the hopper cover 226 has a larger diameter toward the upper side of the machine body, and has a tapered shape in side view and rear view.

Since the upper part of the seedling guide 234 has a tapered shape, the diameter of the upper end side becomes maximum, so that the seedlings can be received even if the position where the seedlings are dropped and supplied is slightly shifted, and the planting hoppers 20a, 20b are used as seedlings. Is prevented from failing to be planted.

In addition, the diameter of the lower part of the seedling guide 234 is set to be substantially the same as or slightly smaller than the diameter of the upper end of the hopper components 231 and 231, so that the diameter between the seedling guide 234 and the hopper components 231 and 231 is reduced. Since there are no gaps, the seedlings can be taken over without fail, and the seedlings can be planted without fail.

Note that, as shown in FIG. 11, the seedling guide 234 may have a shape in which a part of the upper side has a lower vertical height toward the rear side of the body in a side view.

With this configuration, when the planting hoppers 20a, 20b are in the forward tilted position near the top dead center, the opening area of the upper end portion of the seedling guide 234 can be made larger, so that the seedling feeding device 43 supplies the seedling dropfully. The seedlings can easily enter, and the seedlings can be planted more reliably.

Each seedling container 22 has a tubular body that opens up and down, and a bottom lid that opens and closes the lower opening of the tubular body, and is connected to each other in a loop.

The moving mechanism 23 connects the connected seedlings in an oval loop path that is long in the left-right direction in a plane view of the machine in a state where the connected seedling accommodation bodies 22 pass near the upper portions of the left and right planting hoppers 20a and 20b. The container 22 is rotated counterclockwise.

The seedling dropping mechanism opens the bottom lid of the seedling container 22 at a position corresponding to the seedling container 22 and above the planting hoppers 20a and 20b.

In the present embodiment, a cylindrical outer peripheral portion is formed on the outer periphery of the seedling container 22, and an engaging portion (round hole) rotatably connected from the outside is provided on the outer peripheral portion of the cylinder to provide two seedling container 22. A plurality of linked bodies were formed to connect the. Then, the engaging portion of the connecting body is rotatably connected to the cylindrical outer peripheral portion of the seedling accommodation body 22, and the adjacent seedling accommodating body 22 is rotatably coupled with the cylindrical outer peripheral portion as a rotation axis. , A plurality of seedling containers 22 are connected to each other. That is, the seedling container 22 and the connecting body are connected like an endless chain.

As a result, the seedling container 22 does not change the interval between the adjoining seedling container 22 in the linearly moving linear portion 28 and the arcuate portion 29 moving in the arc shape. At locations where seedlings are to be supplied to the planting hoppers 20a and 20b, positional deviations on the left and right of the seedling container 22 based on the planting hoppers 20a and 20b are less likely to occur, and the seedlings are appropriately supplied and appropriate seedlings are provided. Can be planted.

The moving mechanism 23 of the seedling feeding device 43 winds the seedling container 22 that is connected to each other like an endless chain around the arcuate cutouts on the outer circumference of the left and right sprockets, and takes out the left and right sprockets from the transmission case 26. Each seedling container 22 is configured to rotate around by being driven and rotated by the power.

The orbital movement path around which the seedling container 22 circulates is long with a linear portion 28 that extends in the left-right direction in a plan view and an arcuate portion 29 that bends in an arc shape from the linear portion 28 to the front side or the rear side by a sprocket. It has a circular shape and is arranged on the inner side of the vehicle body with respect to the left and right rear wheels 44.

The seedling container 22 of the seedling feeder 43 relatively stably moves in a predetermined direction in the linear portion 28, but in the arc-shaped portions 29 on both left and right sides, the interval between the seedling containers 22 becomes narrow or wide. There is a possibility that the seedling supply device 43 may be damaged by driving the seedling supply device 43 or the seedling drop supply timing may become unstable. In order to prevent this, star wheels 240, 240 that are driven to rotate are provided respectively on the inner peripheral edges of the plurality of seedling containers 22 and on the left and right outer sides of the seedling feeder 43. Protrusions are formed at equal intervals on the outer peripheral edge of 240. By inserting these protrusions into the gaps of the seedling container 22, the positions of each seedling container 22 when passing through the arc-shaped portions 29 on both the left and right sides of the seedling feeding device 43 are maintained, respectively, to thereby prevent overload. It prevents the occurrence of seedlings and the timing of seedling drop supply.

However, during the operation of planting seedlings, the projections of the star wheel 240 are constantly in contact with the seedling container 22, so that the shape of the projections may change due to wear and may be easily damaged by load accumulation. If the deformed or damaged star wheel 240 is used as it is, the feeding interval of the seedling container 22 becomes unstable, and the timing of dropping and supplying seedlings may be disturbed, which may hinder the planting work.

In order to solve this problem, as shown in FIG. 12 and FIG. 13, the rotation support shafts 241 protruding downward are provided on the projections of the star wheel 240, and the feed roller 242 can be rotated around the outer circumference of the rotation support shaft 241. Attach to.

As a result, the projection of the star wheel 240 does not directly contact the seedling container 22, so that deformation of the projection and accumulation of load are less likely to occur, and the timing of seedling drop supply can be stabilized.

Further, by making the feed roller 242 in contact with the seedling container 22 rotatable, wear of the feed roller 242 is reduced, and an increase in the frequency of parts replacement is prevented.

It should be noted that by covering the outer peripheral surface of the feed roller 242 with a coating member having a high friction coefficient and elasticity such as rubber or by coating the feed roller 242, the wear of the feed roller 242 can be further reduced and the grip force can be improved by the friction force. The improvement is achieved and the transportation of the seedling container 22 is stabilized.

The seedling guide 234 is configured to stabilize the drop supply of the seedlings from the seedling feeding device 43 to the planting hoppers 20a, 20b due to its shape, but even if the planting hoppers 20a, 20b rise to near the top dead center. Since there is a vertical gap between the first drop supply position 31a and the second drop supply position 31b of the seedling supply device 43 and the seedling guide 234, seedlings enter the seedling guide 234 due to the influence of wind or vibration of the body. There is a possibility that stockouts will occur.

In order to prevent this problem, as shown in FIGS. 14(a) and (b), between the upper part of the seedling guide 234 and the first drop supply position 31a and the second drop supply position 31b, it is possible to expand and contract and to have flexibility. A bellows guide 244 formed of a high material is provided. The bellows guide 244 expands and contracts and deforms as the planting hoppers 20a and 20b are moved up and down by the vertical movement mechanism 21, thereby acting as a guide shooter for guiding the seedlings.

As a result, a space is not created from the first drop supply position 31a and the second drop supply position 31b to the seedling guide 234, so that the seedlings are prevented from spilling down due to the influence of the wind or the vibration of the body, and the reliable seedling planting is achieved. Can be attached.

Further, the left and right planting hoppers 20 a and 20 b are arranged rearward of the position of the rear wheel axle 12.

The seedling feeding device 43 is configured to feed the seedlings while the seedling container 22 makes one round movement in accordance with the left and right planting hoppers 20a and 20b.

The seedling hoppers 20a and 20b are supplied with seedlings from the seedling container 22 at the first drop supply position 31a and the second drop supply position 31b, respectively.

And the seedling container 22 which accommodates the seedlings dropped and supplied corresponding to the left and right planting hoppers 20a, 20b is provided separately, and above the left and right planting hoppers 20a, 20b to which the seedling container 22 corresponds. The bottom lid is opened only when it comes, and the bottom lid is not opened above the unsupported left and right planting hoppers 20a and 20b.

That is, the seedling container 22 corresponding to the planted hopper 20a is brought to the first drop supply position 31a only, and the seedling container 22 corresponding to the planted hopper 20b is brought to the second drop supply position 31b only. The bottom lid is opened and seedlings are supplied to the corresponding planting hoppers 20a and 20b.

In addition, the first drop supply position 31a and the second drop supply position 31b are configured to be movable to corresponding positions when the distance between the left and right planting hoppers 20a and 20b is adjusted.

The operation cycle of the moving mechanism 23 is set to be synchronized with the operation cycle of the vertical movement mechanism 21, and the seedling housings 22 corresponding to the left and right planting hoppers 20a and 20b are combined to form one seedling housing unit. By configuring the plurality of seedling container units to be connected, the seedling container 22 passes through the left and right drop supply positions 31a and 31b in series while supplying the seedlings corresponding to the left and right planting hoppers 20a and 20b. In order to prevent seedling container 22 in which seedlings can be supplied without leakage and seedlings have not been supplied after passing left and right drop supply positions 31a and 31b, the left and right planting hoppers 20a and 20b are fully filled. It is structured so that seedlings can be supplied accordingly.

In the transplanting machine 10 of the present embodiment, the soil cover crushing wheel 37, which is used to suppress the soil cover according to the seedlings planted by the left and right planting hoppers 20a and 20b, is provided at the seedling planting sites of the left and right planting hoppers 20a and 20b. Are provided near the rear left and right sides.

In addition, a worker seat 46 on which a worker sits is provided so that a worker who supplies seedlings to the seedling supply device 43 can get on and perform seedling supply work. Specifically, the operator's seat 46 is arranged rearward at the center of the machine body on the left and right, which is the front side of the seedling supply device 43. The worker sitting on the operator seat 46 is seated in a rearward facing posture toward the front side portion of the seedling feeding device 43, and the front side portion of the seedling feeding device 43, especially the front side of the orbiting movement path of the seedling container 22. Seedling supply work is performed corresponding to the linear portion 28.

Preliminary seedling frames 50 capable of accommodating seedlings to be supplied to the seedling feeding device 43 are provided above the rear wheel axle 12 of the rear wheels 44 on the left and right sides of the operator seat 46 in a side view of the machine body.

The left and right planting hoppers 20a and 20b are respectively moved up and down by the vertical movement mechanism 21 and planted seedlings in a field with a predetermined front-back distance, that is, a predetermined plant interval, as the traveling vehicle body 40 travels forward.

Between the plants of the seedlings, the vehicle speed transmission that is set to be switched by the operation of the speed change lever 60 that is operably provided on the traveling vehicle body 40, and the plant-to-plant switching gear case 100 that is provided at the rear portion of the mission case 39 are provided. Can be changed by the switching setting of each of the first inter-share gear mechanism 110 for switching between the stocks and the second inter-stock gear mechanism 120 for switching between the small stocks.

The switching between large stocks by the first inter-share gear mechanism 110 indicates an increase/decrease between stocks of 3 to 6 cm as an example, and the switching between small stocks by the second inter-share gear mechanism 120 is 1 to 2 cm as an example. Shows changes between stocks. However, the increase/decrease between stocks to be switched varies depending on the diameter of the gear used, and is not limited to the above numbers.

The above switching mechanism between stocks will be described in detail.

An inter-stock switching case 100 is mounted on the left rear part of the mission case 39. As shown in FIGS. 15 to 18, the driving force is input from the transmission case 39 to the stock exchange switching case 100 via the transmission shaft 101, and the drive shaft 101 is located at the rear side of the transmission shaft 101, that is, inside the stock transmission case 100. A planting clutch 102 that switches between on and off of the planted transmission is provided on the side where the power transmission is performed so that the transmission can be switched on and off on the transmission shaft 101. A transmission gear 103 that rotates together with the transmission shaft 101 is mounted on the rear end side of the transmission shaft 101.

The outer periphery of the transmission shaft 101 on the rear side of the machine body and the shaft attachment portions of the planting clutch 102 and the transmission gear 103 are splined to suppress slippage.

The transmission shaft 101, the planting clutch 102, and the transmission gear 103 are arranged inside the machine body of the inter-stock transmission case 100 (on the side of the lateral center of the machine body) and on the lower side of the machine body.

The first inter-stock gear mechanism 110 is disposed outside the machine and above the machine with respect to the transmission shaft 101. This first inter-share gear mechanism 110 has a first inter-stock transmission shaft 111, and a first inter-stock input gear 112 that is provided on the rear side of the first inter-stock transmission shaft 111 and meshes with the transmission gear 103. A first inter-stock output gear unit 113 including a plurality of (three in this example) gears, and a first inter-stock selection that selects a gear that transmits a driving force among a plurality of gears forming the first inter-stock output gear unit 113. It is composed of a shifter 114.

The first inter-stock output gear unit 113 is arranged nearer to the front of the machine, and the first inter-stock small-diameter gear 113a that is arranged toward the rear of the machine and has the smallest diameter and selects the smallest stock among the first stock. The first stock large diameter gear 113c for selecting the largest stock and the largest stock stock among the first stocks, and the first stock small stock gear 113a and the first stock large stock gear 113c are arranged before and after. It is composed of the first medium-diameter gear 113b.

The first inter-stock shifter 114 is disposed above the transmission shaft 101 and is slidable in the machine front-rear direction, and a first switching unit provided on the machine front side of the first shifter rod 115. The arm 116 and the first switching arm 116 slide in the front-rear direction of the first inter-stock strain transmission shaft 111 to move the first inter-share small diameter gear 113a, the first inter-share medium diameter gear 113b, and the first inter-share large diameter gear 113c. Of these, the first key 117 is used to select the one that is transmitted to the lower side in the transmission direction.

As shown in FIG. 22(a), a plurality of (three places in this example) first shifter grooves 115a, 115b, 115c are formed in the first shifter rod 115 on the rear side of the machine body. The first shifter rod 115 that prevents the first shifter rod 115 from sliding back and forth regardless of the operation of the operator is brought into contact with any of the 1 shifter grooves 115a, 115b, 115c, and the seedling planting stock suddenly changes. To prevent

As shown in FIG. 23, the first sliding stopper 118 includes a first stopper ball 118a that contacts the first shifter grooves 115a, 115b, 115c, and the first stopper ball 118 that moves the first shifter grooves 115a, 115b, 115c. It is composed of a first spring 118b that is pressed against and a first stopper bolt 118c that receives the first spring 118b.

As shown in FIGS. 15 and 16, a large-diameter counter gear 131a that meshes with the first small-diameter gears 113a between the first stock and a first large-diameter counter gear 113a on the inside of the upper body of the first inter-stock strain transmission shaft 111 of the first inter-stock gear mechanism 110. A counter transmission shaft 130 equipped with a counter gear unit 131, which includes a medium-diameter counter gear 131b that meshes with the medium-base stock gear 113b and a small-diameter counter gear 131c that meshes with the first large-base stock gear 113c, is rotatably provided. The counter transmission shaft 130 is transmitted to the lower side in the transmission direction via the gear of the counter gear unit 131 which meshes with the gear of the first inter-share gear unit 113 whose transmission state is selected by the first key 117.

The second inter-stock gear mechanism 120 is disposed on the upper side of the counter gear transmission shaft 130 of the counter gear unit 131 and on the outer side of the body. The second inter-stock gear mechanism 120 includes a second inter-stock transmission shaft 121, a second inter-stock output gear unit 123 including a plurality of gears (three in this example) having different diameters, and the second inter-stock output gear unit 123. The second inter-stock strainer shifter 124 that selects the gear that transmits the driving force among the plurality of gears that configure the second gear, and the first inter-stock output gear 122 that is provided on the rear side of the body of the second inter-stock transmission shaft 121. In addition, the outer periphery of the second stock transmission shaft 121 on the rear side of the fuselage and the shaft attachment portion of the first stock output gear 122 are splined to suppress slippage and easily attached to and detached from the second stock transmission shaft 121. The configuration.

The second stock output gear unit 123 meshes with the large-diameter counter gear 131a and selects the smallest stock among the second stocks, which has the smallest diameter, and the second stock small-diameter gear 123a, and the small-diameter counter gear 131c. It is arranged before and after the second stock large diameter gear 123c, which selects the largest stock among the second stocks, which meshes with the largest diameter, and the second stock small diameter gear 123a and the second stock large diameter gear 123c. It is configured by the second medium-diameter gear 123b.

Further, the second inter-stock shifter 124 is disposed below the counter transmission shaft 130 and outside the machine body, and is provided on the machine body front side of the second shifter rod 125 which is slidable in the machine longitudinal direction. A second switching arm 126 provided and sliding by the second switching arm 126 in the front-rear direction of the second inter-stock strain transmission shaft 121, so that a second stock small-diameter gear 123a, a second stock medium-diameter gear 123b, and a second stock stock. The second key 127 is used to select one of the large-diameter gears 123c that is transmitted to the lower side in the transmission direction.

As shown in FIG. 22B, a plurality of (three in this example) second shifter grooves 125a, 125b, 125c are formed in the second shifter rod 125 on the rear side of the machine body. A second sliding stopper 128 that prevents the second shifter rod 125 from sliding back and forth regardless of the operator's operation is brought into contact with any of the two shifter grooves 125a, 125b, 125c, and the seedling planting stock suddenly changes. To prevent

As shown in FIG. 23, the second sliding stopper 128 includes a second stopper ball 128a that contacts the second shifter grooves 125a, 125b, 125c, and the second stopper ball 128 that moves into the second shifter grooves 125a, 125b, 125c. It is composed of a second spring 128b that is pressed against and a second stopper bolt 128c that receives the second spring 128b.

As shown in FIGS. 15 and 16, a relay transmission shaft 140 is arranged above the second inter-strain transmission shaft 121 of the second inter-strain gear mechanism 120, and the relay transmission shaft 140 has the first A relay input gear 141 having a larger diameter than that of the first inter-share output gear 122, which meshes with the one-share output gear 122, is provided. A second inter-stock output gear 142 is integrally rotatably mounted near the front-rear center of the relay transmission shaft 140.

The outer periphery of the relay transmission shaft 140 on the rear side of the machine body and the shaft attachment portion of the relay input gear 141 are splined to prevent slippage and to be easily attached to and detached from the relay transmission shaft 140.

The planting device 42 and the seedling supply device 43 that provide a driving force at the rear of the fuselage below the relay transmission shaft 140 and inside the fuselage and above the second inter-stock transmission shaft 121 and inside the fuselage. The planted output shaft 151, which constitutes the transmitting PTO shaft 150, is arranged. The PTO shaft 150 includes the planted output shaft 151 arranged in the stock switch gear case 100, a transmission shaft 152 directed toward the rear of the fuselage, and a transmission shaft 152 that rotates around the planted output shaft 151 in the vertical and horizontal directions. It is composed of a universal joint 153 that is movably connected.

A second inter-stock input gear 154 having a diameter larger than that of the second inter-stock output gear 142, which meshes with the second inter-stock output gear 142, is integrally and rotatably mounted near the front-rear center of the planted output shaft 151.

The plurality of gear mechanisms and the plurality of transmission shafts are covered with a front case cover 100F and a rear case cover 100R that form the inter-stock transmission case 100, as shown in FIGS. 19 to 21. Plural screw holes (not shown) are formed in the front case cover 100F and the rear case cover 100R, and bolts 160... Are inserted into the screw holes from the front side and the rear side of the machine body to connect them. When the bolts 160... Are removed, the front case cover 100F and the rear case cover 100R are disconnected from each other, so that internal maintenance work and the like can be performed.

An opening for injection work for injecting a lubricant such as oil or grease into the inter-stock transmission case 100 at a position closer to the inside of the machine than the position where the relay transmission shaft 140 is arranged is located above the front case cover 100F. (Omitted) is formed, and an oil cap 161 is detachably arranged in this opening.

In the rear case cover 100R, on the rear side of the fuselage of the second inter-share strain transmission shaft 121 and the relay transmission shaft 140, that is, on the side where the spline processing is performed and the first inter-share output gear 122 and the relay input gear 141 are provided. As shown in FIG. 21, a rear side opening 100Ra is formed, and a covering plate 162 having a shape substantially the same as the rear side opening 100Ra and larger than the rear side opening 100Ra is formed in the rear side opening 100Ra. As shown in FIG. 20, it is detachably attached via a plurality of bolts 160.

When the cover plate 162 is removed and the rear opening 100Ra is opened, the first inter-share output gear 122 and the relay input gear 141 are exposed, and the rear side of the machine along the second inter-share transmission shaft 121 and the relay transmission shaft 140. It becomes possible to remove it by moving to.

Thereby, the maintenance work of the first inter-share output gear 122 and the relay input gear 141 can be easily performed.

Further, by changing the first inter-plant output gear 122 and the relay input gear 141 to gears having different diameters, it is possible to change the settings between planting plants of seedlings. In addition, the setting change between planted plants referred to here is not a setting change between plants during planting work, but it is necessary to set between planted plants suitable for crops with different cultivation conditions other than onion which is assumed by the present application. means.

By exchanging some gears, it becomes possible to work on planting another crop, so there is no need to separately prepare a dedicated transplanter for another crop, and the cost of farming can be greatly reduced.

As shown in FIGS. 15 to 21, the inter-stock transmission case 100 is provided with a single inter-stock switching lever 170 for switching between the first inter-stock gear mechanism 110 and the second inter-stock gear mechanism 120.
The inter-stock switch lever 170 has an upper part bent toward the front of the machine body, and is provided with an operation grip 171 fitted in an upper end located above the upper bent part 170a. Further, the lower side of the upper bent portion 170a has an inclined posture in which the lower side of the machine body is positioned closer to the inside of the machine body, and the lower bent portion 170b is formed on the lower side of the machine body. The inside of the machine is inclined at a gentler angle than the outside of the machine.

A first lever arm 172 that slides the first shifter rod 115 forward and backward to switch the first inter-share gear mechanism 110 is provided near the lower end portion (inner side end portion of the fuselage) of the inter-stock switch lever 170 in a side view. It is attached so that it can be rotated back and forth together with the switching lever 170. A switching recess 172a is formed at a lower portion of the first lever arm 172 to sandwich a first connecting pin 119 provided on the rear side of the first shifter rod 115 in the body.

A holding plate 174 in the left-right direction is attached via bolts 160 to the lower side and the rear side of the cover plate 162, and the inside of the body of the holding plate 174 is bent toward the rear of the body to hold and bend. 174a is formed. A first shaft opening 175 through which the lower end of the inter-stock switching lever 170 passes and a recess 176 through which the first connecting pin 119 passes are formed on the rear side of the vehicle body with respect to the holding bent portion 174a. As a result, the stock exchange switching lever 170 is rotatably held in the front-back rotation direction (first operation direction) X in a side view, as shown in FIGS. 15, 16 and 19.

A second lever arm 177 having a bent portion 177a is connected to a rear end portion of the second shifter rod 125 with a connecting bolt 173, and the stock switch lever is provided on the front side of the body with respect to the bent portion 177a in a side view. A second shaft opening 178 is formed through which 170 passes.

A soft ring-shaped member (not shown) having elasticity, such as rubber, is provided on the inner peripheral portions of the first shaft opening 175 and the second shaft opening 178, so that the stock switch lever 170 can be moved in the front-back rotation direction X. At the time of the operation and the operation in the front-back swing direction Y, the fulcrum portion may be twisted so that the first shifter rod 115 and the second shifter rod 125 can be sufficiently moved forward and backward.

Since the second shifter rod 125 is connected to the second switching arm and the second lever arm 177, when the inter-stock switching lever 170 is operated in the front-back swing direction (second operation direction) Y, the second shifter rod 125 moves back and forth. It will be configured to move.

It should be noted that the length from one end portion where the operation grip 171 of the stock switch lever 170 is provided to the other end portion side that serves as a fulcrum during the turning operation in the front-rear turning direction X is, for example, at least 15 cm or more. The length should be as long as possible while taking into consideration the difficulty of contacting members and the feet of workers.

As a result, the amount of operation of the inter-stock switch lever 170 at the time of the turning operation in the front-rear turning direction X becomes large, so that it is easy for the operator to grasp that the stocks are being switched significantly, and it can be distinguished from the operation to switch the stocks slightly. It is easy to operate and the occurrence of erroneous operation is prevented.

Further, since the rotation fulcrum of the stock switch lever 170 in the front-rear rotation direction X is near the first shifter rod 115, the stock switch lever 170 is operated in the front-back swing direction Y in order to move the second shifter rod 125 back and forth. At this time, the first shifter rod 115 moves back and forth to switch the first inter-stock gear mechanism 110, thereby preventing a different stock interval from being set.

The side where the operation grip 171 of the inter-stock switch lever 170 is provided is one of the left and right sides of the traveling vehicle body 40 and is provided in the space below the operator seat 46. Further, the shift lever 60 is arranged inside the machine body with respect to the stock exchange switching lever 170 in the space below the operator seat 46.

The shift lever 60 has a longitudinal direction in the front-rear direction of the machine body, and switches to any of "low speed", "medium speed", or "high speed" by rotating the front end portion in the left-right direction with the front end portion as a fulcrum. Even if the shift lever 60 is operated in the outermost direction of the machine body, the shift lever 60 and the stock switch lever 170 are arranged so as not to interfere with each other. This does not matter the operation position of the stock switch lever 170.

As a result, the worker can perform the setting work between the stocks on the same side on the left and right of the traveling vehicle body 40, so that the frequency of movement during the stock changeover work can be suppressed, and the work time and labor can be shortened.

It should be noted that the configuration is such that "inward" is operated when the inside of the machine is operated and "high" is operated when operated outside of the machine.

Next, switching between vehicle speed transmissions and change between planting stocks of seedlings by switching between the first inter-plant gear mechanism 110 and the second inter-plant gear mechanism 120 will be described based on Table 1. If a label similar to that shown in Table 1 is created and affixed within a range that can be visually recognized by an operator who operates the stock exchange switching lever 170, the operation direction of the stock exchange switching lever 170 becomes wider or narrower between stocks. It will be easier to understand.

まず、変速レバー６０は、前述のとおり、ミッションケース３９に内装する変速ギア機構の切替により、走行車体４０の走行速度を「低速」、「中速」及び「高速」の三段階に切り替えるものである。走行速度が速いほど、植付装置４２が上昇及び下降動作を一回行う間に前進する距離は長くなるので、車速の設定により圃場に苗を植え付ける前後間隔（株間）が変更される。

First, as described above, the shift lever 60 switches the traveling speed of the traveling vehicle body 40 between three levels of "low speed", "medium speed", and "high speed" by switching the speed change gear mechanism incorporated in the mission case 39. is there. The higher the traveling speed, the longer the distance the planting device 42 moves forward while performing the raising and lowering operations once. Therefore, the interval before and after planting seedlings in the field (between plants) is changed by setting the vehicle speed.

Next, when the stock exchange switch lever 170 is operated in the front-back rotation direction X, the first shifter rod 115 swings in the front-back direction to change the front-back position of the first key 117, and the first inter-stock transmission shaft 111 transmits the counter. The gear of the first inter-share output gear unit 113 transmitted to the shaft 130 is changed.

On the rear side of the first inter-stock transmission shaft 111, a first inter-stock small-diameter gear 113a for setting the narrowest inter-stock distance in the first inter-stock gear mechanism 110 is provided, and on the front side of the machine, the first inter-stock gear mechanism 110 is used. Since the first inter-stock large-diameter gear 113c for setting the most stock interval is provided, as shown in FIGS. 15, 16 and 19, when the stock switching lever 170 is rotated in the front rotation direction XF, the stock interval is changed. Is significantly widened, and when the pivotal operation is performed in the rearward rotational direction XR, the distance between the stocks is significantly reduced.

Depending on the vehicle speed setting, the above-mentioned drastic change between stocks can be switched about every 3 cm at "low speed", every 3 to 5 cm at "medium speed", and every 5 cm or 6 cm at "high speed".

Regarding the switching of the vehicle speed, the stock distance is increased or decreased by at least 10 cm and at the maximum by 17 cm, and the stock distance can be switched more significantly than the stock distance change by the first inter-share gear mechanism 110.

Next, when the stock exchange switching lever 170 is operated in the front-back swing direction Y, the second shifter rod 125 swings in the front-back direction to change the front-back position of the second key 127, and the counter transmission shaft 130 transmits the second stock-to-stock transmission. The gear of the second inter-stock output gear unit 123 that receives the driving force to the shaft 121 is changed.

On the rear side of the second stock transmission shaft 121, the second small stock gear 123a for setting the narrowest stock in the second stock gear mechanism 120 is provided, and on the front side of the machine, the second stock gear mechanism 120 is used. Since the second stock large diameter gear 123c for setting the largest stock spacing is provided, as shown in FIGS. 15, 16 and 19, when the stock switching lever 170 is rocked in the front swing direction YF, the stock spacing is increased. Is narrowly widened, and when the swing operation is performed in the rear swing direction YR, the space between the stocks is narrowed narrowly.

That is, both of the first inter-share gear mechanism 110 and the second inter-share gear mechanism rotate or swing the inter-stock switch lever 170 to the front side of the machine when widening the stock interval, and also narrow the inter-stock interval. At this time, the stock switch lever 170 is rotated or rocked to the rear side of the machine body. By unifying the operation direction of the stock exchange switching lever 170 when increasing or decreasing between stocks, it becomes easy to prevent an operator from making a mistake in the increase or decrease operation between stocks.

The above-mentioned slight change between stocks can be switched at intervals of about 1 cm at "low speed", and at intervals of 1 cm or 2 cm at "medium speed" and "high speed", depending on the vehicle speed setting.

The large-diameter counter gear 131a, the medium-diameter counter gear 131b, and the small-diameter counter gear 131c mounted on the counter transmission shaft 130 are the first stock small-diameter gear 113a, the first stock medium-diameter gear 113b, and the first stock large-diameter gear. 113c, the second small stock gear 123a, the second medium stock gear 123b, and the second large stock gear 123c, respectively, but only the gears selected by the first key 117 and the second key 127 rotate. The driving force can be transmitted by means of the gears, and the other gears that have not been selected are configured so as to idle and not affect the transmission of the driving force.

In the above configuration, for example, when it is desired to set the stock distance to 37 cm, the gear shift lever 60 is operated to set the vehicle speed to "medium speed", and the stock stock switching lever 170 is operated to operate the first stock stock transmission shaft 111 to the counter transmission shaft 130. The transmission to the second inter-share transmission shaft 121 from the counter transmission shaft 130 is performed by setting the transmission between the first stock medium-diameter gear 113b and the middle-diameter counter gear 131b in mesh with each other. The setting is performed by meshing the small stock gears 123a.

Further, for example, when it is desired to set the stock distance to be 60 cm, the gear shift lever 60 is operated to set the vehicle speed to “high speed”, and the stock-to-stock switching lever 170 is operated to transmit power from the first stock-to-stock transmission shaft 111 to the counter transmission shaft 130. Is set by the meshing of the first stock large diameter gear 113c and the small stock counter gear 131a, and the transmission from the counter transmission shaft 130 to the second stock transmission shaft 121 is performed by the small stock counter gear 131c and the second stock large gear 123c. It is set by the meshing of.

As described above, in the seedling transplanter of this configuration, the vehicle speed, the first inter-plant gear mechanism 110 and the second inter-plant gear mechanism 120 can be switched in three stages, respectively, so that the plants can be switched in 27 stages, depending on the region and the cultivation method. Even if there is a need to change between stocks due to the difference in, it is possible to respond flexibly.

Further, since the switching operation between the first inter-share gear mechanism 110 and the second inter-share gear mechanism 120 can be performed by operating the one inter-stock switch lever 170 in different directions, the number of parts is reduced and the weight of the aircraft is reduced. The configuration can be simplified.

In particular, it is easier to prevent the operator from forgetting the operation and setting the stock spacing to be different from the operator's expectation, as compared with the case where the first stock stock gear mechanism 110 and the second stock stock gear mechanism 120 are operated by separate operating members. , The planting of seedlings between wrong plants is prevented, and the planting work does not need to be redone.

Further, since the switching operation between the first inter-share gear mechanism 110 and the second inter-share gear mechanism 120 is the forward/backward rotation direction X and the forward/backward swing direction Y, the operator can determine which is being switched depending on the operation. Since it is easy to grasp, it is possible to prevent an incorrect stock interval from being set due to an erroneous operation.

In addition to this, the front rotation operation XF and the front swing operation YF of the inter-stock switch lever 170 both widen the stock distance, and the rear rotation operation XR and the rear swing operation YR both narrow the stock distance. Since it becomes easier to understand whether the stocks are widening or narrowing, it is possible to further prevent the setting of wrong stocks.

In addition, as shown in FIGS. 17 and 18, the transmission shaft 101, the first inter-share transmission shaft 111, the counter transmission shaft 130, the second inter-share transmission shaft 121, the planted output shaft 151, and the relay transmission shaft when viewed from the front or the rear. By arranging the 140 in a zigzag pattern in the vertical direction, the horizontal width of the inter-stock switching gear case 100 can be configured to be narrow, and thus the space for arranging the transmission case 39 on one of the left and right rear sides of the machine body can be suppressed.

Although the stock switching gear case 100 is slightly longer in the vertical direction, the staggered arrangement in the vertical direction also reduces the vertical length, further reducing the space for arrangement.

The auxiliary seedling frame 50 is provided with a support stay 52 on an upper part of a seedling mounting column 51 projecting to the outside of the body of the traveling vehicle body 40, and the support stay 52 is capable of switching between a rotating state and a non-rotating state. An arm 53 is provided, and seedling frame frames 54, 54 in the vertical direction are arranged on the seedling mounting rotation arm 53 at intervals, and supplementary seedlings are housed on the same surface of the seedling frame frames 54, 54. It is configured by mounting one side end of a mounting table 55 on which a container such as a seedling box or seedling tray is mounted.

Although only one mounting table 55 may be provided in the vertical direction, a plurality of mounting tables 55 may be arranged at intervals in the vertical direction that does not hinder the taking out of the container. 1 to 4, three mounting tables 55 are provided in the vertical direction.

The preliminary seedling frame 50 having the above-described configuration is provided on each of the left and right sides of the traveling vehicle body 40, and the seedling mounting rotation arm 53 is rotated on the support stay 52 according to the situation.

For example, at the time of planting seedlings, the efficiency of work can be improved by making the longitudinal direction of the mounting table 55 face the longitudinal direction of the machine so that the seedling container can be easily removed from the mounting table 55 and the empty container can be easily returned. Can be improved.

Further, since the mounting tables 55 are located on both the left and right sides of the traveling vehicle body 40 at this position, it becomes easier for the operator to grasp the end portion of the portion where the traveling vehicle body 40 can be boarded, and the feet stick out from the traveling vehicle body 40 and the posture Is prevented from breaking down.

Further, when the worker gets on and off the traveling vehicle body 40, the seedling mounting rotation arm 53 is rotated by about 90 degrees.

As a result, a space for getting on and off is formed on both left and right sides of the traveling vehicle body 40.

Although the worker can also get in and out of the traveling vehicle body 40 from the front side of the machine body, the seedling frame 54, 54 is positioned on the front side of the machine body by rotating the seedling mounting rotation arm 53, and the mounting table 55 is located on the rear side of the machine body. In the state of being located on the side, the worker can use the seedling frame frames 54, 54 as a handrail, so that the traveling vehicle body 40 can be smoothly loaded and unloaded.

Further, when the seedling container is loaded or unloaded on the mounting table 55, there is no member that prevents the loading and unloading of the container from the rear side of the machine body, so that the working efficiency is improved.

The operator seat 46 is attached to the traveling vehicle body 40 in a U-shape in a front view or a rear view, and in the left-right direction of the body of the seat frame 49 straddling the body cover 48 covering the engine 41 and the like. Attach to the upper part of the part. The left and right lower end portions of the seat frame 49 are frames of a slide portion (not shown) for moving the left and right traveling transmission cases 38, 38 in the left and right direction to change the left and right distance between the left and right rear wheels 44, 44. Connect to.

As a result, the seat frame 49 also serves as a constituent member of the slide portion, so that the strength of the slide portion can be improved.

When planting seedlings with the above transplanter, the worker must sit on the operator's seat 46 with his or her back facing the direction of travel, and when there are obstacles in the direction of travel or to the ridges. It may be delayed to notice the approach. At this time, if the traveling is not stopped promptly, the aircraft will come in contact with obstacles and prevent the forward movement of the aircraft, and the vehicle will stop at a position away from the ridge where the planting work was being performed, and the vehicle will turn or travel to the ridge start side. There is a problem that the distance becomes long.

In order to prevent this problem, as shown in FIG. 26, the central step 400 on which the operator sitting on the operator seat 46 puts his/her foot is arranged so as to be vertically rotatable about the rotational fulcrum on the front side of the machine body. Due to the urging force of the lifting spring 401 provided between the lower surface of 400 and the upper and lower sides of the machine frame 19, the rear side of the central step 400 is slightly raised when the operator is not riding.

Below the vicinity of the rear end of the central step 400, a boarding detection switch 402 is provided, which comes into contact with the rear end side of the central step 400 when the rear end side pivots downward. The boarding detection switch 402 is turned on when the central step 400 is rotated downward and pushed after the engine is started, and detects the boarding of the worker. Then, when the worker notices an obstacle or a ridge, or when he/she descends from the machine and the rear end side of the central step 400 is lifted by the lifting spring 401, the boarding detection switch 402 is turned off and the engine is stopped. It is configured to stop on the spot.

If the operator steps on the central step 400 strongly and the rear end side excessively rotates downward, the boarding detection switch 402 may be damaged due to pressurization. A stopper 403 that restricts downward rotation of the central step 400 at a predetermined position is erected vertically.

As a result, when the worker turns around and notices that he/she is approaching an obstacle or a ridge edge, he/she can stop the traveling by moving his/her foot away from the central step 400, so that the obstacle is contacted and the aircraft is damaged. It is possible to prevent the seedlings from being planted multiple times in the same place without being able to move forward, or to stop the vehicle at a position away from the ridge end and to increase the moving distance to the next work position.

INDUSTRIAL APPLICABILITY The transplanter according to the present invention is capable of setting a wider range of seedling planting intervals than before, and can be applied to a transplanter or the like that simultaneously implants a plurality of seedlings, and has high industrial applicability.

20a Planted hopper 20b Planted hopper 21 Elevating mechanism (elevating member)
21a Upper link arm (link arm)
21b Lower link arm (link arm)
26 transmission case 40 traveling vehicle body 43 seedling supply device 209 fastening member (connecting member)
210 Link holder 211 Non-circular cam (oscillating rotator)
214 Rotating cam (rotating link member)
215 Lifting crank (lifting arm)
216 Connection plate 221 Notch 222 222 Adjusting plate (adjustment support plate)
222a Front protrusion (protrusion)
224 inter-slot adjustment slot (slot)
225 hopper holder (planted holder)

Claims (5)

Seedling supply device for supplying seedlings (43),該苗feeder (43) Planting hopper (20a, 20b) attaching a planting example seedlings fed from the, lifting the hopper with the plant (20a, 20b) In a transplanter equipped with a lifting mechanism (21),
Provided pivotably rear side of the elevating mechanism (21) to the link holder (210), notch in the rear side of the link holder (210) (221) is formed, planting hopper link holder (210) A connecting member (209) for connecting (20a, 20b) is arranged in the notch (221) ,
A hopper holder for supporting the planted hoppers (20a, 20b) by providing an adjustment support plate (222) on the link holder (210) and forming an elongated hole (224) in the left-right direction in the adjustment support plate (222). 225) to the adjustment support plate (222),
The connecting member (209) includes a state movable in the lateral direction of the planting hopper to release the connection (20a, 20b) of said regulatory support plate (222) and Hoppahoruda (225), said modulation support plate ( 222) and the hopper holder (225) are connected to each other so that the left and right positions can be fixed. The adjustment support plate (222) is attached to the notch (221),
The transplanter according to claim 1 , wherein an adjustment space (223) is formed between the cutout (221) and the adjustment support plate (222) . The transplanter according to claim 1 or 2, wherein the left and right central portions of the adjustment support plate (222) are located at the rear of the elevating mechanism (21). The lifting mechanism (21) includes an upper link arm (21a) and a lower link arm (21b) ,
The position where the upper link arm (21a) is attached to the link holder (210) is set to the front side of the machine body than the position where the lower link arm (21b) is attached to the link holder (210). The transplanter according to claim 1 or 2. Said elevating mechanism (21) the lifting drive to the transmission case (26) is provided, before SL lifting crank (215) is provided for lifting mechanism (21) is vertically pivoted, elevating crank (215) is said transmission dynamic case ( 26) is configured to rotate by receiving a driving force from the same, and a connecting plate (216) for connecting the lifting crank (215) to the lifting mechanism (21) is provided,
The connecting plate (216) and the lifting crank (215) are connected to each other below the lifting mechanism (21) in the airframe, and the connecting plate (216) is moved from the lifting mechanism (21). The implanting machine according to claim 1, wherein the implanting machine is also located inside the machine body .