CN113923974B - transplant machine - Google Patents

Abstract

The space adjustment structure of the 1st transplantation unit (63R) and the 1st seedling mounting table (9R) and the 2nd transplanting unit (63L) and the 2nd seedling mounting table (9L) is simplified. Equipped with: a first seedling loading platform (9R) and a second seedling loading platform (9L), which are movably supported on the main frame (37); a connecting member (235), which connects the first seedling loading platform (9R) and the The second seedling loading platform (9L) is connected; the first transplanting unit (63R) has a first seedling taking-out device (11R) for taking out the seedlings from the first seedling loading platform (9R) and a second planting unit for transplanting the taken-out seedlings. A transplanting device (35R); a second transplanting unit (63L), which has a second seedling taking-out device (11L) for taking out seedlings from the second seedling loading platform (9L) and a second planting taking-out device (11L) for transplanting the taken-out seedlings to the field. Two transplanting devices (35L); and a lateral feed mechanism (236), which is installed on the first transplant unit (63R), so that the first seedling loading platform (9R) is laterally fed, and the first transplant unit (63R) and the second transplant unit (63R) The two transplanting units (63L) are supported on the main frame (37) in a manner that can be independently adjusted in position in the body width direction (K2), and the first seedling loading platform (9R) and the first transplanting unit (63R) can be Position adjustment is integrally performed in the body width direction ( K2 ), and the second seedling mounting table ( 9L ) is attached to the connection member ( 235 ) so that the position can be adjusted in the body width direction ( K2 ).

Description

transplant machine

technical field

This invention relates to the transplanting machine which transplants a seedling to a field, for example.

Background technique

Conventionally, a transplant machine disclosed in Patent Document 1 is known.

The transplanter disclosed in Patent Document 1 includes a first seedling mounting table and a second seedling mounting table arranged side by side in the body width direction. The 1st seedling mounting base and the 2nd seedling mounting base are supported by the main frame so that movement in the body width direction is possible. Moreover, the 1st transplanting unit corresponding to the 1st seedling mounting stand, and the 2nd transplanting unit corresponding to the 2nd seedling mounting stand are supported by the main frame. By making the first transplant unit and the second transplant unit approach and move away in the body width direction in conjunction with each other, the interval in the body width direction can be adjusted (the row interval can be adjusted). The interval adjustment of the body width direction of the 1st seedling mounting table and the 2nd seedling mounting table is also performed in conjunction with the interval adjustment of the 1st transplanting unit and the 2nd transplanting unit.

Moreover, the transplanting machine disclosed in patent document 1 is provided with the longitudinal feed mechanism which conveys the seedling tray mounted on the 1st seedling mounting table and the 2nd seedling mounting table in the longitudinal direction.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open Gazette "No. 2000-139117 Gazette"

Contents of the invention

The problem to be solved by the invention

In the transplanting machine disclosed in Patent Document 1, the interlocking mechanism for interlocking the first transplanting unit and the first seedling mounting table and the second transplanting unit and the second seedling mounting table to adjust the interval is complicated.

In addition, in the transplanter disclosed in Patent Document 1, only any one of the seedling trays placed on the first seedling loading table and the seedling trays placed on the second seedling loading table cannot be longitudinally driven.

Therefore, this invention was made in view of the said problem, and it aims at providing the transplanting machine which can simplify the space adjustment structure of a 1st transplanting unit and a 1st seedling mounting base, and a 2nd transplanting unit and a 2nd seedling mounting base.

Another object of the present invention is to provide a transplanter capable of longitudinally feeding and driving only any one of the seedling trays placed on the first seedling mounting table and the seedling trays mounted on the second seedling mounting table.

means to solve the problem

A transplanter according to an aspect of the present invention includes: a main frame; a first seedling mounting table and a second seedling mounting table arranged side by side in the width direction of the machine body, and can be arranged along the body width; The main frame is movably supported in the width direction; a connecting member that connects the first seedling mounting table to the second seedling mounting table; a first transplanting unit that has a first seedling removal device for removing seedlings from the seedling tray placed on the first seedling loading table; a first transplanting device for transplanting the seedlings taken out by the first seedling removal device to a field; a second transplanting unit , the second transplanting unit has a second seedling removal device for removing seedlings from a seedling tray placed on the second seedling loading table, and a second seedling removal device for transplanting the seedlings taken out by the second seedling removal device to the field. Transplanting device; and a lateral feed mechanism, the lateral feed mechanism is installed on the first transplanting unit and makes the first seedling loading platform laterally feed along the width direction of the body, the first transplanting unit and the The second transplanting unit is supported on the main frame so as to be independently position-adjustable in the body width direction, the first seedling mounting table is connected to the first transplanting unit via the lateral feed mechanism, and The position can be integrally adjusted in the body width direction, and the said 2nd seedling mounting stand is attached to the said connection member so that the position can be adjusted in the body width direction.

In addition, a drive main shaft is provided, and the drive main shaft is arranged at the front part of the first transplant unit and the second transplant unit so as to extend in the width direction of the machine body, and is supported by the main frame to feed the lateral feed mechanism. Transmission power, the first transplanting unit has a first unit frame equipped with the first seedling taking-out device and the first transplanting device, and the second transplanting unit has the second seedling taking-out device and The second unit frame of the second transplanting device, the first unit frame and the second unit frame are supported by the drive spindle so as to be movable in the body width direction.

In addition, the main frame has a first connecting plate arranged behind the first unit frame and a second connecting plate arranged behind the second unit frame, and the first unit frame has a first mounting plate , the first mounting plate can be installed on the first connecting plate in a position-adjustable manner along the width direction of the body, the second unit frame has a second mounting plate, and the second mounting plate can be positioned along the width direction of the body Adjustably mounted on the second connecting plate.

In addition, the main frame has a rail member extending in the width direction of the body, the first seedling mounting table has a first roller supported by the rail member so as to be movable in the width direction of the body, and a frame to which the first roller is attached. The first holder member, the second seedling mounting table has a second roller supported by the rail member so as to be movable in the body width direction, and a second holder member on which the second roller is attached, the first The cage member has a first post plate mounted on the connecting member, and the second cage member has a second post plate mounted on the connecting member.

In addition, a transplanting machine according to another aspect of the present invention includes: a first seedling loading table and a second seedling loading table on which a seedling tray is placed; and a longitudinal feeding mechanism, so that The longitudinal feeding mechanism conveys the seedling trays mounted on the first seedling loading platform and the second seedling loading platform in the longitudinal direction, and the longitudinal feeding mechanism is provided with: a longitudinal feeding main shaft, and the longitudinal feeding main shaft extends over The first seedling loading platform and the second seedling loading platform are arranged on the ground, and are transmitted to convey the longitudinal feeding power of the seedling tray in the longitudinal direction; the first longitudinal feeding working shaft, the first longitudinal feeding working shaft is set on the first seedling loading platform, and convey the seedling trays placed on the first seedling loading platform in the longitudinal direction; the second longitudinal feed working shaft is arranged on the second Seedling loading platform, and convey the seedling tray loaded on the second seedling loading platform in the longitudinal direction; the first longitudinal feed clutch, the first longitudinal feed clutch can intermittently move from the longitudinal feed main shaft to said first infeed work shaft transmits power; and a second infeed clutch capable of intermittently transferring power from said infeed main shaft to said second infeed work shaft Deliver momentum.

In addition, the longitudinal feed main shaft has: a rotating body, the rotating body is transmitted with the longitudinal feeding power; and a shaft body, the shaft body is fixed to the rotating body, and the Set up with the second seedling loading platform, the first longitudinal feed working shaft has a first input part that can be relatively rotatably embedded in the shaft body and adjacent to the rotation body, and the first The longitudinal feed clutch has: a driving meshing part, the driving meshing part is arranged on the rotating body; a clutch body, the clutch body can move along the axis direction and can be integrally rotated and embedded in the first input part; and a driven meshing portion, the driven meshing portion is provided on the clutch main body, and is engaged with and disengaged from the driving meshing portion by moving the clutch body in an axial direction.

Moreover, the said shaft body has the 1st shaft by the side of the said 1st seedling mounting base, the 2nd shaft by the side of the said 2nd seedling mounting base, and the coupling body which couple|bonded the said 1st shaft and the said 2nd shaft.

In addition, the second seedling loading table and the first seedling loading table are aligned in the width direction of the machine body, and the distance between the first seedling loading table and the machine body width direction can be adjusted. The main shaft has an extended shaft protruding from the second seedling mounting table to the side opposite to the first seedling mounting table, and the second longitudinal feed working shaft has a shaft that is relatively rotatably embedded in the extended shaft. The second input part of the part, the second longitudinal feed clutch has: a rotating part, the rotating part can move along the axis direction and can be integrally rotatably embedded in the extension shaft part, and installed on the first a second seedling loading platform; and a clutch shifter, the clutch shifter is embedded in the second input part so as to be able to move in the direction of the axis and to be integrally rotatable, and moves in the direction of the axis to be connected with the said second input part. The rotating part engages and disengages.

Moreover, the said 1st longitudinal feed clutch is provided in the side opposite to the said 2nd seedling loading table of the said 1st seedling loading table.

The effect of the invention

According to the above configuration, the first transplanting unit and the second transplanting unit are independently positionally adjusted in the width direction of the body, and the first seedling mounting table and the second seedling mounting table move along with the position adjustment of the first transplanting unit. After the position adjustment of the first transplanting unit is performed, the position of the second plantlet mounting table is adjusted in the body width direction with respect to the connection member. Thereby, without using a complicated interlocking mechanism, it is possible to adjust the distance between the first transplanting unit and the first seedling mounting table, and the second transplanting unit and the second seedling mounting table.

In addition, according to the above-mentioned structure, since the first longitudinal feed clutch capable of intermittently transmitting power from the longitudinal feed main shaft to the first longitudinal feed working shaft is provided, and the clutch capable of intermittently transmitting power from the longitudinal feed main shaft to the second longitudinal feed shaft is provided. The second longitudinal feed clutch that feeds the working shaft to transmit power, therefore, only the seedling trays placed on the first seedling loading platform and the seedling trays placed on the second seedling loading platform can be vertically carried out. Feed drive.

Description of drawings

Fig. 1 is a schematic side view of the transplanting machine.

Fig. 2 is a schematic top view of the transplanting machine.

Fig. 3 is a side view of the body.

It is a side view which shows the movement path of a seedling tray, and an empty tray receiving part.

Fig. 5 is a perspective view of the rear portion of the traveling body.

Fig. 6 is a top view of the seedling tray.

Fig. 7 is a front view of the seedling tray.

Fig. 8 is a top view of the main frame.

Fig. 9 is a side view of the main frame.

Fig. 10 is a rear view of the main frame.

Fig. 11 is a top view of the transplant unit.

Fig. 12 is a rear view showing the front support of the unit frame.

Fig. 13 is a plan view showing the rear support of the unit frame.

Fig. 14 is a side view showing the rear support of the unit frame.

Fig. 15 is a side view of a power input unit that inputs power to the drive spindle.

Fig. 16 is a plan view of the power input unit.

Fig. 17 is a side view of the irrigation pump and the irrigation transmission mechanism.

Fig. 18 is a top view of the irrigation pump and the irrigation transmission mechanism.

Fig. 19 is a rear view of the irrigation pump and the irrigation transmission mechanism.

Fig. 20 is a schematic rear view showing the discharge path from the irrigation pump.

Fig. 21 is a side view showing the working machine mounting device.

Fig. 22 is a rear view of the support structure of the main frame.

Fig. 23 is a rear view of the rolling mechanism.

Fig. 24 is a side view of the rolling mechanism.

Fig. 25 is a side view of the support structure of the sensing roller.

Fig. 26 is a rear view of the support structure of the sensing roller.

Fig. 27 is a rear view of the support structure of the sensing roller.

Fig. 28 is a top view of the first transplantation unit and the second transplantation unit.

Fig. 29 is a side view showing the transplanting depth adjustment mechanism and the transplanting lifting mechanism.

Fig. 30 is a rear view showing the transplanting depth adjustment mechanism.

Fig. 31 is a side view showing the earth covering pressure adjusting mechanism.

Fig. 32 is a plan view showing the operation unit.

Fig. 33 is a plan view showing the transplanting lifting mechanism.

Fig. 34 is a side view of the transplanting lifting mechanism.

Fig. 35 is a side view showing the installation portion of the irrigation pipe.

Fig. 36 is a partially cutaway rear view showing the mounting portion of the irrigation pipe.

Fig. 37 is a plan view showing a main frame and a seedling mounting table.

Fig. 38 is a plan view showing a seedling mounting table.

It is a rear view which shows the connection structure of the 1st seedling mounting stand and the 2nd seedling mounting stand.

Fig. 40 is a side view of the lower part of the seedling mounting table.

Fig. 41 is a rear view showing the infeed mechanism.

Fig. 42 is a side view showing a tray conveyance mechanism and a seedling take-out device.

Fig. 43 is a rear sectional view showing the longitudinal feed drive mechanism.

Fig. 44 is a rear sectional view showing the right side of the longitudinal feed drive mechanism.

Fig. 45 is a diagram showing the left side of the longitudinal feed drive mechanism.

Fig. 46 is a side view showing the longitudinal feed working mechanism.

Fig. 47 is a plan view showing the tray pressing mechanism.

Fig. 48 is a side view showing the tray pressing mechanism.

Fig. 49 is a rear view showing the tray pressing mechanism.

Fig. 50 is a side view showing the first pressing mechanism.

Fig. 51 is a side view showing the second pressing mechanism.

Detailed ways

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

FIG. 1 is a schematic side view showing the overall structure of a transplant machine 1 according to this embodiment. FIG. 2 is a schematic plan view of the transplant machine 1 .

As shown in FIG. 1 , a transplanter 1 is a passenger-type transplanter (passenger transplanter) having a driver's seat 3 on which an operator (driver) 2 sits.

As shown in FIGS. 1 and 2 , the transplanter 1 has a transplanting machine 4 for transplanting a seedling 7 in a field 6 and a traveling body 5 on which the transplanting machine 4 is mounted and travels. Therefore, the transplanting machine 1 is a machine for transplanting the seedlings 7 in the field 6 by the transplanting machine 4 while traveling on the field 6 by the traveling body 5 .

In the embodiment of the present invention, the direction in front of the operator 2 seated on the operator's seat 3 of the transplant machine 1 (arrow A1 direction in FIGS. The direction (arrow A2 direction in FIG. 1 and FIG. 2 ) will be described as the rear. In addition, the arrow K1 direction in FIG. 1 and FIG. 2 is referred to as the body front-rear direction. In addition, the right side of the operator 2 (the direction of the arrow B1 in FIG. 2 ) will be referred to as the right side, and the left side of the operator 2 (the direction of the arrow B2 in FIG. 2 ) will be described as the left side.

In addition, as shown in FIG. 2 , the horizontal direction, which is a direction perpendicular to the body front-rear direction K1 , will be described as the body width direction K2 . The direction from the central portion in the width direction of the body to the right or left will be described as the outside of the body. In other words, the outside of the body refers to the body width direction K2 and the direction away from the center of the body in the width direction. The direction opposite to the outside of the body will be described as the inside of the body. In other words, the inside of the body refers to the direction K2 of the width of the body and the direction close to the center of the width direction of the body.

First, the outline of the transplanting work machine 4 will be described.

As shown in FIG. 1 , the transplanting work machine 4 has a seedling mounting stand 9 on which a plurality of seedling trays (tray unit) 8 having a plurality of seedlings 7 are placed.

As shown in FIGS. 6 and 7 , the seedling tray 8 is made of plastic, has a thin wall, has flexibility, and is formed in a rectangular shape in plan view. The seedling tray 8 has the some tank part 8a arrange|positioned vertically and horizontally at predetermined pitch in grid form, and is formed. The opening edge part of the tank part 8a is connected by the flat upper surface wall 8b. The can part 8a protrudes toward the back side from the upper surface wall 8b. In the seedling tray 8 , the seedlings 7 (soil seedlings) are grown by supplying bed soil to the tank portion 8 a and sowing seeds on the bed soil to grow seedlings.

As shown in FIG. 3 , the seedling mounting stand 9 has a mounting plate 10 on which the seedling tray 8 is placed in a state in which the seedling tray 8 is inclined downward (inclined in a direction in which the seedling tray 8 is shifted backward as it goes downward). As shown in FIG. 1 , the seedlings 7 of the seedling tray 8 are taken out one by one by the seedling taking-out device 11 arranged behind the lower part of the seedling loading table 9 and supplied to the transplanting body 12 below. The transplanting body 12 reciprocates up and down and receives the seedlings 7 at the top dead center position. Moreover, when the transplanting body 12 falls, it rushes into the field 6 and transplants the seedling 7. In detail, the transplanting body 12 is formed by an opener that can be opened and closed back and forth. In the closed state, the seedlings 7 are kept inside and directed downward, and are opened back and forth when rushing into the field 6 to form a transplanting hole in the field 6. And the seedling 7 is dropped to this transplanting hole, and it transplants. The transplanting machine 4 takes out the seedlings 7 from the seedling tray 8 and automatically transplants them in the field 6 at predetermined intervals.

As shown in FIG. 3 , the mounting plate 10 can mount a plurality of seedling trays 8 so as to be vertically aligned along the inclination direction. The seedling tray 8 is arrange|positioned so that a longitudinal direction may match an inclination direction. The seedling taking-out device 11 takes out the seedlings 7 from the lowest seedling tray 8 ( 8A) among the plurality of seedling trays 8 placed on the loading plate 10 . In addition, the seedling extractor 11 extracts the seedlings 7 one by one from the seedling tray 8 while the seedling loading table 9 is intermittently fed laterally by one pitch of the tank portion 8a in the body width direction K2. When taking out the seedlings 7 lined up in the horizontal direction from the seedling tray 8, the seedling tray 8 is vertically fed downward by one pitch of the tank part 8a along the oblique direction. Thereby, the next row of seedlings 7 in the horizontal direction can be taken out. After that, the seedling mounting table 9 is moved laterally in the direction opposite to the previous one to take out the seedlings 7, and when taking out the seedlings 7 in a horizontal row, the seedling tray 8 is vertically fed. By repeating this process sequentially, all the seedlings 7 are taken out from the seedling tray 8 .

As shown in FIG. 3 , the seedling mounting table 9 has a reverse guide 13 at the lower portion, and the seedling tray 8 after the seedlings 7 are taken out by the seedling extractor 11 is conveyed to the reverse guide 13 by longitudinal feeding. The seedling tray 8 conveyed to the inversion guide 13 is guided by the inversion guide 13, and is guided to 10 A of back surfaces (lower surface side) of the mounting plate 10. As shown in FIG. Moreover, the seedling mounting base 9 has the empty tray guide 14 on the back side of the mounting board 10. As shown in FIG. The empty tray guide 14 has a bent portion 14a at the lower portion. The curved part 14a receives the seedling tray 8 from the reverse guide 13, and guides it to the guide main body part 14b arrange|positioned at the back side of the mounting plate 10. As shown in FIG. The empty seedling tray 8 is guided to the back upper part of the mounting plate 10 by the guide main body part 14b. The empty tray guide 14 has an upper guide part 14c at the upper part. The upper guide part 14c extends forward from the upper end of the guide main body part 14b toward the driver's seat 3 side. In addition, the upper guide portion 14c is formed in a slightly inclined shape (inclined shape that shifts downward as it goes forward) with the rear high and the front low. An empty seedling tray 8 can be taken out from the upper guide part 14c.

Next, the running body 5 will be described in detail.

As shown in FIG. 1 , the traveling body 5 is arranged in front of the transplanting work machine 4 .

As shown in FIG. 4 , the running body 5 includes a body 16 on which the driver's seat 3 is mounted, and a traveling device 17 that supports the body 16 so that it can run. The body 16 has a prime mover 18 , a prime mover frame 19 , a gearbox 20 and a body frame 21 . The prime mover 18 is, for example, a diesel engine. The prime mover 18 is arranged at the front of the traveling body 5 . The prime mover frame 19 is disposed below the prime mover 18 and supports the prime mover 18 . The transmission case 20 is disposed behind the prime mover 18 and accommodates a transmission mechanism for changing the speed of power output from the prime mover 18 . A prime mover frame 19 is connected to the front of the transmission case 20 . The body frame 21 is arranged behind the transmission case 20 . In other words, the body frame 21 is arranged at the rear of the traveling body 5 . A transmission case 20 is coupled to the front portion of the body frame 21 . The body frame 21 has a support body 22 at the rear. The driver's seat 3 is attached to the support body 22 via a seat attachment member 31 .

The driver's seat 3 is arranged at the rear of the machine body 16 . The driver's seat 3 has a seat portion 3A and a back portion 3B. The seat portion 3A is a portion where the operator 2 sits (places the buttocks and thighs). The backrest portion 3B is a portion where the seated operator 2 leans on the back, and is provided to extend upward from the rear portion of the seat portion 3A.

As shown in FIGS. 1 and 2 , in the present embodiment, the traveling device 17 is a wheel-type traveling device having left and right front wheels 23 and left and right rear wheels 24 . The front wheels 23 and the rear wheels 24 are rotated by the power output from the transmission 20 .

As shown in FIGS. 1 and 2 , a steering wheel 25 , an engine cover 26 , and a steering column 27 for steering the traveling body 5 (front wheels 23 ) are provided in front of the driver's seat 3 . A fuel tank and the like are housed in the engine cover 26 . The prime mover 18 is arranged under the engine cover 26 . The steering column 27 covers a steering column supporting the steering wheel 25 and the like.

As shown in FIG. 1, the preliminary seedling stand 28 on which the seedling tray 8 which has the seedling 7 was previously placed is arrange|positioned at the side of the engine cover 26. As shown in FIG. The preliminary seedling stand 28 has 28 A of multistage seedling placement parts, and is provided in the left side of the engine cover 26, and the right side. The operator 2 can take out the seedling tray 8 from the preliminary seedling stand 28, and can supply it to the transplanting operation machine 4 (seedling mounting stand 9).

As shown in FIGS. 1 and 2 , the running body 5 has a floor plate 29 disposed below the driver's seat 3 . The bottom plate 29 has a front step 29 a on which the operator 2 seated in the driver's seat 3 places his feet on the front portion. The front steps 29a are arranged in front of and below the driver's seat 3 . The transmission case 20 is arranged below the front step 29a. A seat panel cover 30 covering a portion 22A (see FIG. 4 ) of the support body 22 that supports the driver's seat 3 is provided behind the front step 29a and below the driver's seat 3 .

As shown in FIGS. 1 to 5 , an empty tray receiving portion 15 capable of receiving the empty seedling tray 8 sent out from the empty tray guide 14 is provided behind the seat cover 30 . The upper guide portion 14c is located above the empty tray receiving portion 15 and extends toward the empty tray receiving portion 15 side. The empty tray receiver 15 is provided on the rear side of the driver's seat 3 and on the front side of the seedling loading table 9 . In other words, the empty tray receiving part 15 is provided between the operator's seat 3 and the empty tray guide 14 (seedling mounting base 9). Thereby, the empty seedling tray 8 sent out from the empty tray guide 14 can be prevented from falling downward from between the driver's seat 3 and the empty tray guide 14 (seedling loading stand 9 ). In addition, the empty tray receiver 15 is provided above the front step 29 a and below the driver's seat 3 . Therefore, the empty tray receiving part 15 is provided in the height which can receive the empty seedling tray 8 sent out from the empty tray guide 14 favorably. Moreover, since the upper guide part 14c is formed in the inclination shape with a high rear and a low front, and extends toward the empty tray receiving part 15 side, the empty seedling tray 8 can be sent out to the empty tray receiving part 15 favorably. In addition, the rear end portion of the empty tray receiving portion 15 is located below the upper rear end portion of the empty tray guide 14 . Specifically, the rear end portion of the empty tray receiving portion 15 overlaps the rear end portion of the empty tray guide 14 in plan view. Thereby, the empty seedling tray 8 sent out from the empty tray guide 14 can be prevented from falling downward from between the empty tray guide 14 and the empty tray receiving part 15, and the empty seedling tray can be received by the empty tray receiving part 15. 8.

As shown in Fig. 3 and Fig. 5, the empty tray receiving part 15 has a protruding part (first receiving part) 32 at the rear of the bottom plate 29 and a plurality of rear pedals (second receiving part) disposed behind the protruding part 32. )33. The protruding portion 32 is provided at a position higher than the front step 29 a and is provided behind the seat cover 30 . Specifically, it protrudes rearward from the rear lower end of the seat cover 30 . Moreover, the left part of the extension part 32 protrudes to the left compared with the seat cover 30, and the right part protrudes to the right compared with the seat cover 30. As shown in FIG. The left and right portions of the extended portion 32 are connected to the front step 29a via the inclined portion 29b. The inclined portion 29b protrudes in an inclined direction shifting upward from the rear portion of the front step 29a toward the rear. The plurality of rear steps 33 are arranged rearward of the overhanging portion 32 at substantially the same height as the overhanging portion 32 .

The plurality of rear steps 33 include a first rear step 33R and a second rear step 33L. The first rear step 33R is arranged behind the right portion of the extension portion 32 , and the second rear step 33L is arranged behind the left portion of the extension portion 32 . The first rear step 33R and the second rear step 33L are supported by the body 16 (body frame 21 ) via a frame member (referred to as a step frame) 34 .

As shown in FIG. 4 , the pedal frame 34 has a first frame member 34A to a third frame member 34C. The first frame member 34A is arranged to extend in the body width direction K2 between the rear step 33 and the extension portion 32 . The lower part of the second frame member 34B is fixed to the body frame 21, and the first frame member 34A is fixed to the upper part. The third frame member 34C protrudes rearward from the first frame member 34A. The third frame member 34C is disposed on the lower surface side of the rear step 33 and supports the rear step 33 from below. In addition, a plurality of third frame members 34C are provided, and are provided on left and right portions of the first rear step 33R and the second rear step 33L, respectively.

The rear step 33 is arranged in front of the seedling mounting table 9 . Therefore, when the operator 2 supplies (replenishes) the seedling tray 8 to the seedling loading platform 9, he can put his feet on the rear pedal 33, and by putting his feet on the rear pedal 33, the replenishment of the seedling tray 8 can be easily performed. .

As shown in Fig. 2 and Fig. 5, the transplanting operation machine 4 of the present embodiment has two (multiple) seedling loading platforms 9, and a first seedling loading platform 9 (first seedling loading platform 9R) is arranged in front of one of the seedling loading platforms 9. One rear step 33R, 2nd rear step 33L is arrange|positioned ahead of the other seedling mounting stand 9 (9 L of 2nd seedling mounting stands).

In addition, the first rear step 33R and the second rear step 33L may be formed continuously. In addition, the rear step 33 may also be comprised by one member. Moreover, when there is one seedling mounting stand 9, one rear step 33 is provided. In addition, when there are three or more seedling loading platforms 9, the number of rear pedals 33 corresponding to the number of seedling loading platforms 9 may be provided, or one rear pedal 33 common to each seedling loading platform 9 may be provided.

Next, the transplanting working machine 4 will be described in detail.

As shown in FIGS. 1 and 2 , the transplanting working machine 4 has a transplanting frame 36 . As shown in FIG. 2 , the transplant frame 36 has a main frame 37 and a plurality of unit frames 38 . The plurality of unit frames 38 includes a first unit frame 38R and a second unit frame 38L.

As shown in FIGS. 8 to 10 , the main frame 37 has a first frame 39 to a twelfth frame 50 . The first frame 39 is arranged in front of the main frame 37 . The first frame 39 has a first pillar portion 39a on the right, a second pillar portion 39b on the left, and a connecting portion 39c that connects upper parts of the first pillar portion 39a and the second pillar portion 39b. The first pillar portion 39a and the second pillar portion 39b are bent toward the front side in the middle of the vertical direction. In detail, the lower part of the 1st pillar part 39a and the 2nd pillar part 39b is linear in the up-down direction, and the upper part is formed in the inclined shape which shifts forward as it goes upward. The lower part of the 2nd pillar part 39b protrudes below rather than the lower end of the 1st pillar part 39a.

The second frame 40 is arranged below the first support portion 39a and the second support portion 39b so as to extend in the body width direction K2. The lower end of the second pillar portion 39 b is connected to the second frame 40 . The right portion of the second frame 40 protrudes rightward compared to the first pillar portion 39a, and the left portion protrudes leftward compared to the second pillar portion 39b. The third frame 41 connects the lower portion of the first pillar portion 39 a to the second frame 40 .

The fourth frame 42 protrudes rearward from the middle portion in the vertical direction of the first frame 39 . Specifically, the fourth frame 42 has the first to third parts 42a to 42c. The front portion of the first portion 42a is connected to the middle portion in the vertical direction of the first pillar portion 39a, and protrudes rightward from the first pillar portion 39a. From the middle part of the first part 42a, the rear part protrudes toward the rear from the outer end of the front part of the first part 42a. The front portion of the second portion 42b is connected to the lower portion of the second pillar portion 39b and protrudes leftward from the second pillar portion 39b. From the middle part of the second part 42b, the rear part protrudes toward the rear from the front outer end of the second part 42b. The third part 42c connects the rear ends of the first part 42a and the second part 42b to each other.

The front part of the fifth frame 43 is formed in a horizontal shape and connected to the right part of the second frame 40 . The fifth frame 43 is formed in an inclined shape that shifts upward from the middle to the rear, and the rear end is connected to the third portion 42 c of the fourth frame 42 .

The front part of the sixth frame 44 is formed in a horizontal shape and is connected to the left part of the second frame 40 . The sixth frame 44 is formed in an inclined shape that shifts upward from the middle to the rear, and the rear end is connected to the third portion 42 c of the fourth frame 42 .

The seventh frame 45 connects the first portion 42 a and the second portion 42 b of the fourth frame 42 . In detail, the part (left part) inside the body inside the front part of the 1st part 42a is connected with the part (right part) inside the body inside the front part of the 2nd part 42b.

The eighth frame 46 connects the first portion 42 a and the second portion 42 b of the fourth frame 42 . Specifically, the eighth frame 46 connects the connecting piece 51R fixed to the middle part in the body front-rear direction of the first part 42a and the connecting piece 51L fixed to the middle part in the body front-back direction of the second part 42b.

The ninth frame 47 connects the lower part of the second pillar part 39 b to the third frame 41 .

The tenth frame 48 is disposed substantially in the center of the main frame 37 in the body width direction K2 , and connects the ninth frame 47 and the third portion 42 c of the fourth frame 42 .

The eleventh frame 49 and the twelfth frame 50 are arranged at intervals along the body width direction K2 at the central portion in the body width direction K2 of the front portion of the main frame 37 . The eleventh frame 49 and the twelfth frame 50 connect the seventh frame 45 and the second frame 40 .

A first spring hanger 52R is provided on an upper portion of the first pillar portion 39a, and a second spring hanger 52L is provided on an upper portion of the second pillar portion 39b.

A fixing plate 53 is provided at an upper portion between the eleventh frame 49 and the twelfth frame 50 . The rolling shaft 54 is attached to the fixing plate 53 so as to protrude forward. The rolling shaft 54 has a rolling axis X1 extending along the front-back direction K1 of the machine body. The rolling shaft 54 is disposed substantially in the center of the main frame 37 in the body width direction K2.

A rail member (referred to as a first rail) 56 extending in the body width direction K2 is arranged on the rear side of the seventh frame 45 . The first rail 56 is formed of a channel-shaped steel member and opens toward the rear. The plurality of pillar members 55 are fixed to the upper surface of the first rail 56 at predetermined intervals in the body width direction K2. Each pillar member 55 is bolt-fixed to the seventh frame 45 .

A rail member (referred to as a second rail) 58 extending in the body width direction K2 is arranged on the front side of the eighth frame 46 . The second rail 58 is formed of a channel-shaped steel member and opens toward the front. A plurality of support members 57 are fixed to the second rail 58 . Each pillar member 57 is bolted to the eighth frame 46 .

A support bracket (referred to as a first support bracket) 59 is fixed to the front portion of the sixth frame 44 . The first support bracket 59 is erected on the sixth frame 44 . A support bracket (referred to as a second support bracket) 60 is fixed to the front portion of the fifth frame 43 . The second support bracket 60 is erected on the fifth frame 43 .

A plurality of connecting plates 61 are provided at the rear of the main frame 37 . The plurality of joint plates 61 include a first joint plate 61R and a second joint plate 61L. The first connecting plate 61R is fixed to the right portion of the third portion 42c of the fourth frame 42, and the second connecting plate 61L is fixed to the left portion of the third portion 42c.

As shown in FIG. 2 , the first unit frame 38R is arranged on the right side of the main frame 37 , and the second unit frame 38L is arranged on the left side of the main frame 37 . Specifically, the first unit frame 38R and the second unit frame 38L are disposed between the first portion 42a and the second portion 42b of the fourth frame 42, and the first unit frame 38R is disposed between the first portion 42a and the second portion 42b. On the right side between them, the second unit frame 38L is arranged on the left side between the first part 42a and the second part 42b. The first connecting plate 61R is arranged behind the first unit frame 38R, and the second connecting plate 61L is arranged behind the second unit frame 38L.

As shown in FIG. 1 , the seedling take-out device 11 , the transplanting body 12 , and the covering wheel (ground roller) 62 are respectively installed in the first unit frame 38R and the second unit frame 38L.

The multiple seedling removal apparatus 11 is provided, and the several seedling removal apparatus 11 includes the 1st seedling removal apparatus 11R provided in the 1st unit frame 38R, and the 2nd seedling removal apparatus 11L provided in the 2nd unit frame 38L.

A plurality of transplant bodies 12 are provided, and the plurality of transplant bodies 12 include a first transplant body 12R provided on the first unit frame 38R and a second transplant body 12L provided on the second unit frame 38L. 12 R of 1st transplanting bodies comprise a part of 1st transplanting apparatus 35R (refer FIG. 28) which transplants the seedling 7 taken out by 11 R of 1st seedling extractors to the field 6. As shown in FIG. The second transplanting body 12L constitutes a part of the second transplanting device 35L (refer to FIG. 28 ) that transplants the seedling 7 taken out by the second seedling taking out device 11L to the field 6 .

The covering wheels 62 include a first covering wheel 62R provided on the first unit frame 38R and a second covering wheel 62L provided on the second unit frame 38L. Two first covering wheels 62R and two second covering wheels 62L are respectively provided. The two first covering wheels 62R are arranged side by side in the body width direction K2. The two second covering wheels 62L are also arranged in line in the body width direction K2. The first soil-covering wheel 62R is arranged behind the first transplanting body 12R, and rolls on the left and right sides of the seedling 7 transplanted by the first transplanting body 12R to cultivate soil on the side of the seedling 7, and the plant Side suppression. The second covering wheel 62L is arranged behind the second transplanting body 12L, rolls on the left side and the right side of the seedling 7 transplanted by the second transplanting body 12L to cultivate soil on the side of the seedling 7, and the plant Side suppression.

As shown in FIG. 1 , the first unit frame 38R, the first seedling take-out device 11R, the first transplanting body 12R (the first transplanting device 35R), and the first soil wheel 62R constitute the first transplanting unit 63R. The second unit frame 38L, the second seedling taking-out device 11L, the second transplanting body 12L (second transplanting device 35L), and the second covering wheel 62L constitute the second transplanting unit 63L.

The number of transplantation units may be one or more than three. In addition, the number of seedling mounting tables is also determined according to the number of transplanting units.

As shown in FIGS. 11 and 12 , the first unit frame 38R has a frame main body 64 having a rectangular shape in plan view. The frame main body 64 has a first side frame 65A and a second side frame 65B arranged to face each other at intervals in the body width direction, and the front parts of the first side frame 65A and the second side frame 65B are arranged The front frame 66 connected to each other (referred to as a first front frame), the rear frame 67 connecting the rear parts of the first side frame 65A and the second side frame 65B to each other, and the rear frame 66 are disposed behind the first front frame 66 and The second front frame 68 is connected to the first side frame 65A and the second side frame 65B. The first side frame 65A is disposed outside the body of the second side frame 65B.

The second unit frame 38L also has a frame main body 64 having the same structure as the first unit frame 38R.

The front part of each frame main body 64 is provided with the 1st unit bracket 69 and the 2nd unit bracket 70 arrange|positioned at intervals in the body width direction K2. The upper parts of the first unit bracket 69 and the second unit bracket 70 are fixed to the first front frame 66 and the second front frame 68 , and protrude downward from the frame main body 64 . The first unit bracket 69 is arranged outside the body of the frame body 64 , and the second unit bracket 70 is arranged inside the body of the frame body 64 .

As shown in FIG. 11 , the drive spindle 71 is arranged in front of the first unit frame 38R (first transplant unit 63R) and the second unit frame 38L (second transplant unit 63L) so as to extend in the body width direction K2 . In addition, a drive spindle 71 is provided at the front of the main frame 37 so as to extend in the body width direction.

Front portions of the first unit frame 38R and the second unit frame 38L are supported by the drive spindle 71 so as to be movable in the body width direction K2. Specifically, the drive spindle 71 has an axis extending in the body width direction K2 and is provided from the front of the fifth frame 43 to the front of the sixth frame 44 . The left side of the drive spindle 71 is rotatably supported by the first support bracket 59 via a bearing 72 , and the right side is rotatably supported by the second support bracket 60 via a bearing 73 . The first unit frame 38R and the second unit frame 38L are arranged above the drive spindle 71 . The drive spindle 71 passes through the lower portions of the first unit bracket 69 and the second unit bracket 70 of the first unit frame 38R and the second unit frame 38L, and is rotatably supported on the first unit bracket 69 and the second unit bracket 69 . Bearing 74 of unit bracket 70 . Accordingly, the front portions of the first unit frame 38R and the second unit frame 38L are supported by the drive spindle 71 so as to be movable in the body width direction K2.

As shown in FIGS. 11 and 13 , the first unit frame 38R has a first mounting plate 76R attached to the first connecting plate 61R, and the second unit frame 38L has a second mounting plate 76L attached to the second connecting plate 61L.

As shown in FIGS. 13 and 14 , the first mounting plate 76R is attached to the rear frame 67 of the first unit frame 38R so as to be positionally adjustable in the body width direction K2 using bolts 77A and nuts 77B. The second mounting plate 76L is attached to the rear frame 67 of the second unit frame 38L so as to be positionally adjustable in the body width direction K2 with bolts 77A and nuts 77B. The first mounting plate 76R is attached to the first connection plate 61R so as to be positionally adjustable in the body width direction K2 by means of bolts 78A and nuts 78B. The second mounting plate 76L is attached to the second connection plate 61L so as to be positionally adjustable in the body width direction K2 by means of bolts 78A and nuts 78B. By changing the installation position of the first mounting plate 76R in the body width direction K2 with respect to the first connecting plate 61R, the position of the first unit frame 38R with respect to the main frame 37 in the body width direction K2 can be adjusted. The second unit frame 38L can be adjusted in the body width direction K2 relative to the main frame 37 by changing the mounting position of the second mounting plate 76L with respect to the second connecting plate 61L in the body width direction K2. That is, the first transplant unit 63R and the second transplant unit 63L are supported by the main frame 37 so as to be independently positionally adjustable in the body width direction K2.

By adjusting the positions of the first unit frame 38R and the second unit frame 38L in the body width direction K2, the distance between the first transplant body 12R and the second transplant body 12L in the body width direction K2 can be adjusted (by the first transplant body). The distance between the seedlings 7 transplanted by the carrier 12R and the seedlings 7 transplanted by the second transplanting body 12L in the body width direction K2) is the row interval W1 (see FIG. 11 ).

As shown in FIG. 13 , marks 78 are provided on the first mounting plate 76R and the second mounting plate 76L. The row interval display part 79 is provided in the 1st connecting plate 61R and the 2nd connecting plate 61L. Numerals indicating the line interval W1 are written on the line interval display portion 79 . Adjustment of the line interval W1 can be easily performed by matching the mark 78 with the number of the line interval display part 79 .

As shown in FIGS. 11 and 12 , the drive spindle 71 has a power take-out portion (referred to as a first power take-off portion) 80 for taking out power on the end side in the body width direction K2. The first power take-off unit 80 is provided on the left end side of the drive spindle 71 . The irrigation pump 82 arranged in front of the first power take-off unit 80 can be driven by the power transmitted from the first power take-off unit 80 . In addition, the drive spindle 71 has another power take-off portion (referred to as a second power take-off portion) different from the first power take-off portion 80 on the end side (right end side) opposite to the first power take-off portion 80 . 81. For example, the second power take-off unit 81 can transmit power to various types of equipment that can be selectively attached to the transplanting work machine 4 to drive the various types of equipment. For example, splines (or key grooves, etc.) are formed on the first power take-off part 80 and the second power take-off part 81, and by spline coupling (or key coupling, etc.) The power take-off unit 80 and the second power take-off unit 81 are taken out.

As shown in FIG. 12 , an input sprocket 83 as an input member for inputting rotational power to the drive main shaft 71 is provided on the central side of the drive main shaft 71 so as to be integrally rotatable. The input sprocket 83 is supported by a bearing 84 attached to a strut member 85 fixed to the tenth frame 48 .

FIG. 15 shows a side view of the power input portion 86 that inputs power to the drive spindle 71 , and FIG. 16 shows a plan view with a part of the power input portion 86 expanded.

As shown in FIGS. 15 and 16 , the power input unit 86 has an input shaft 87 , a gear transmission mechanism 88 , and a winding transmission mechanism 89 including an input sprocket 83 .

As shown in FIG. 1 , power is transmitted to an input shaft 87 from a PTO shaft (power take-off shaft) protruding rearward from the transmission case 20 . Specifically, the first joint shaft 92 is interlocked and connected to the PTO shaft 90 via the transplanting clutch (spacing clutch) 91 , and the second joint shaft 93 is interlocked and connected to the first joint shaft 92 . The second joint shaft 93 is linked with the input shaft 87 . The transplant clutch 91 can intermittently transmit power output from the PTO shaft 90 to the input shaft 87 . When the transplanting clutch 91 is disconnected, the actions of the transplanting body 12, the seedling taking-out device 11, etc. are stopped, and when they are connected, the actions of the transplanting body 12, the seedling taking-out device 11, etc. are restarted. Therefore, the seedlings 7 can be transplanted at a predetermined pitch by adjusting the off time of the transplanting clutch 91 .

As shown in FIGS. 15 and 16 , the gear transmission mechanism 88 has a first bevel gear 88A integrally rotatably fitted to the input shaft 87 and a second bevel gear 88B meshing with the first bevel gear 88A. The winding transmission mechanism 89 has a first transmission sprocket 94 capable of rotating integrally with the second bevel gear 88B, a second transmission sprocket 95 to which power is transmitted from the first transmission sprocket 94 , and a second transmission sprocket 95 to which power is transmitted from the second transmission sprocket 95 . The third transmission sprocket 96 of power. Power is transmitted from the third transmission sprocket 96 to the input sprocket 83 .

As shown in FIGS. 17 to 19 , a plurality of irrigation pumps 82 are provided according to the number of transplant bodies 12 . Therefore, when there is one transplant body 12, one irrigation pump 82 is also provided. The plurality of irrigation pumps 82 are longitudinally arranged in front of the first power take-off unit (power take-off unit) 80 and at a position inside the body of the main frame 37 in the body width direction K2. In the present embodiment, the plurality of irrigation pumps 82 include a first irrigation pump 82R that supplies water to the first transplant body 12R and a second irrigation pump 82L that supplies water to the second transplant body 12L. The irrigation pump 82 is formed by a reciprocating pump having a cylinder 97 and a piston 98 reciprocating inside the cylinder 97 . The cylinder 97 has an axis in the vertical direction. Therefore, the piston 98 reciprocates in the up and down direction.

Power is transmitted from the first power take-out unit 80 to the irrigation pump 82 by the irrigation transmission mechanism 99 . The irrigation pump 82 and the irrigation transmission mechanism 99 are mounted on the pump bracket 110 provided on the main frame 37 .

The pump head 111R of the first irrigation pump 82R and the pump head 111L of the second irrigation pump 82L are provided with a suction unit 114 and a discharge unit 115 . By reciprocating the piston 98 up and down, water is sucked in from the suction part 114 and the sucked water is discharged from the discharge part 115 . The suction part 114 is provided at the front of the pump head 111R and the pump head 111L. The discharge unit 115 is provided at the rear of the pump head 111R and the pump head 111L.

As shown in FIGS. 1 and 2 , a watering tank T storing water for irrigating the seedlings 7 is disposed on the front portion of the running body 5 . There are multiple irrigation tanks T. The plurality of water tanks T includes a first water tank T1 and a second water tank T2 arranged on the right side of the hood 26 , and a third water tank T3 and a fourth water tank T4 arranged on the left side of the hood 26 . The second water tank T2 is disposed outside the body of the first water tank T1 and at a lower position than the first water tank T1 . The first water tank T1 and the second water tank T2 are supported on the body 16 via the first tank bracket 116 . The fourth water tank T4 is disposed outside the body of the third water tank T3 and lower than the third water tank T3. In addition, the third water tank T3 and the fourth water tank T4 are supported by the machine body 16 via the second tank bracket 117 .

As shown in FIG. 2 , the first irrigation tank T1 and the second irrigation tank T2 are connected to the suction portion 114 of the first irrigation pump 82R via a suction hose 119R. The third irrigation tank T3 and the fourth irrigation tank T4 are connected to the suction portion 114 of the second irrigation pump 82L via a suction hose 119L.

As shown in FIG. 20, the 1st watering pipe 120R (watering pipe 120) is arrange|positioned at the upper part side of 12 R of 1st transplant bodies. A second watering pipe 120L (watering pipe 120 ) is disposed on the upper side of the second transplant body 12L. The discharge unit 115 of the first irrigation pump 82R is connected to the first irrigation pipe 120R via the discharge hose 122R, and the discharge unit 115 of the second irrigation pump 82L is connected to the second irrigation pipe 120L via the discharge hose 122L. Therefore, the water discharged from the first irrigation pump 82R is supplied to the first transplant body 12R, and the water discharged from the second irrigation pump 82L is supplied to the second transplant body 12L.

The first irrigation pipe 120R is attached to a support plate 121R (support plate 121 ) supporting the first transplant body 12R, and the second irrigation pipe 120L is attached to a support plate 121L (support plate 121 ) supporting the second transplant body 12L.

As shown in FIGS. 1 and 21 , the main frame 37 (transplanting work machine 4 ) is attached to the running body 5 via the work machine assembly device 123 . The work machine assembly device 123 has an assembly frame 124 for detachably attaching the main frame 37 (transplanting work machine 4 ), and a work machine elevating mechanism 125 for raising and lowering the main frame 37 (transplanting work machine 4 ).

As shown in FIG. 21 , the mounting frame 124 has a bearing body 128 that supports the rolling shaft 54 so as to be rotatable about the rolling axis X1. The main frame 37 can swing around the rolling axis X1 relative to the assembly frame 124 . The first transplant body 12R and the second transplant body 12L are arranged side by side in the body width direction K2 across the rolling axis X1.

The work machine elevating mechanism 125 has a connecting link mechanism 129 that connects the traveling body 5 and the mounting frame 124 , and an elevating drive body 130 that drives the transplanting work machine 4 up and down.

The connecting link mechanism 129 is composed of parallel links, and has an upper link 129A and a lower link 129B disposed below the upper link 129A. The front portion of the upper link 129A is coupled to the rear portion of the body 16 (body frame 21 ) so as to be rotatable around the axis in the body width direction K2. The rear portion of the upper link 129A is connected to the mounting frame 124 so as to be rotatable around the axis in the body width direction K2. The front portion of the lower link 129B is coupled to the rear portion of the body 16 (body frame 21 ) so as to be rotatable around the axis in the body width direction K2. The rear portion of the lower link 129B is coupled to the mounting frame 124 so as to be rotatable about an axis in the body width direction K2. The transplanting work machine 4 can be moved up and down in parallel by the connecting link mechanism 129 .

The lift drive body 130 is, for example, a lift cylinder constituted by a hydraulic cylinder. One end side of the lift cylinder 130 (the bottom side of the cylinder main body 130A) is coupled to the rear of the body 16 (body frame 21 ) so as to be rotatable around the axis in the body width direction K2. The other end side of the lift cylinder 130 (coupling body 130C attached to the front end side of the piston rod 130B) is coupled to the mounting frame 124 so as to be rotatable around the axis in the body width direction K2. One end side of the lift cylinder 130 is pivotally supported concentrically with the front portion of the upper link 129A, and the other end side is pivotally supported concentrically with the rear portion of the lower link 129B.

As shown in FIG. 21 , the transplant machine 1 includes a control valve 132 that controls the lift cylinder 130 . The control valve 132 is controlled by the control device 131 . The control valve 132 is formed of an electromagnetic valve, and is constituted by, for example, a three-position directional switching valve switchable to a neutral position, an ascending position, and a descending position. The control valve 132 is connected to the control device 131 through electric wiring and the like, and is connected to the cylinder body 130A of the lift cylinder 130 , the hydraulic pump 133 , and the hydraulic oil tank 134 through hydraulic lines. When an ascending command signal is sent from the control device 131 to the control valve 132, the control valve 132 is switched to the ascending position, the working oil from the hydraulic pump 133 is supplied to the bottom side of the cylinder main body 130A, and the elevating cylinder 130 extends and the main frame (moving Plant work machine 4) rise. Also, when a lowering command signal is sent from the control device 131 to the control valve 132, the control valve 132 is switched to the lowering position, hydraulic oil is supplied to the rod side of the cylinder main body 130A, and the lift cylinder 130 contracts to lower the main frame 37.

In addition, the lifting drive body 130 may be constituted by an electric cylinder (electric actuator) or an electrohydraulic cylinder (electrohydraulic actuator). The electric cylinder is an electrically driven cylinder, and is, for example, an actuator that rotates a ball screw around its axis with an electric motor to move a ball screw nut, and the movement of the ball screw nut moves a rod forward and backward. An electric hydraulic cylinder is, for example, an actuator that integrates an electric motor, an oil tank, a hydraulic pump, a valve, a hydraulic cylinder, etc., and the hydraulic pump is rotated by the rotation of the electric motor, and the hydraulic cylinder is operated by switching the valve. actuator.

As shown in FIG. 22 , the transplanting machine 1 has a rolling mechanism 135 for swinging the transplanting machine 4 around the rolling axis X1. The rolling mechanism 135 has a rolling motor 136 , a rolling roller 137 and a cable body 138 . The rolling motor 136 and the rolling roller 137 are provided in the mounting frame 124 (working machine mounting device 123). The scroll motor 136 and the scroll roller 137 are disposed above the scroll shaft 54 and at positions corresponding to the central portion of the main frame 37 in the body width direction K2 . The scroll roller 137 is disposed above the scroll motor 136 . The scroll motor 136 is constituted by an electric motor capable of forward and reverse rotation. In addition, the scroll motor 136 is connected to the control device 131 . The control device 131 controls the rolling mechanism 135 .

As shown in FIGS. 23 and 24 , the power of the scroll motor 136 is transmitted to the scroll roller 137 via a transmission mechanism (gear transmission mechanism) 139 . The transmission mechanism 139 has a first gear 139A rotationally driven by the power of the rolling motor 136 and a second gear 139B meshing with the first gear 139A. The second gear 139B has a larger diameter than the first gear 139A and rotates integrally with the rolling roller 137 . Therefore, the scroll roller 137 is rotated forward and backward by the power of the scroll motor 136 .

The cable body 138 is formed of, for example, a wire rope or a cable, and is wound around the rolling roller 137 . One side (right side) 138R of the cable body 138 stretches out from the rolling roller 137 to one side (right side), and the other side (left side) 138L stretches out from the rolling roller 137 to the other side (left side). out. One side 138R of the cable body 138 is connected to one side in the body width direction K2 of the transplanting machine 4 , and the other side 138L is connected to the other side in the body width direction K2 of the transplanting machine 4 . Specifically, as shown in FIG. 22 , one side 138R of the cable body 138 is connected to one end of the first buffer spring 140R, and the other side 138L is connected to one end of the second buffer spring 140L. The other end side of the first buffer spring 140R is hooked to the first spring hanger 52R of the main frame 37 , and the other end side of the second buffer spring 140L is hooked to the second spring hanger 52L. That is, one end side of the cable body 138 is connected to one side in the body width direction K2 of the main frame 37 via the first buffer spring 140R, and the other end side is connected to the other side of the body width direction K2 of the main frame 37 via the second buffer spring 140L. link.

When the rolling roller 137 is rotated in one direction forward and reverse by the rolling motor 136, for example, when rotating clockwise in FIG. 22, the left side of the cable body 138 is pulled. Thereby, the main frame 37 (transplanting working machine 4) swings clockwise in FIG. 22 around the rolling axis X1. In addition, when the rolling roller 137 is rotated in the opposite direction (counterclockwise in FIG. 22 ) by the rolling motor 136, the right side of the cable body 138 is pulled. Thereby, the main frame 37 (transplanting working machine 4) swings counterclockwise in FIG. 22 around the rolling axis X1.

In addition, the main frame 37 (transplanting working machine 4) can freely swing around the rolling axis X1.

As shown in FIG. 23 , a detection sensor 141 is provided on the assembly frame 124 , and the detection sensor 141 detects a large swing of the transplanting machine 4 around the rolling axis X1 . The detection sensor 141 includes a first limit switch 141R that detects a clockwise swing of the transplanting work machine 4 and a second limit switch 141L that detects a counterclockwise swing of the transplant work machine 4 . One of the plurality of teeth of the second gear 139B is set as a detection tooth 142 that protrudes outward in the radial direction of the gear compared with other teeth. The contacts of the switch 141L are in contact to detect a large swing of the transplanting machine 4 around the rolling axis X1. When the detection tooth 142 is detected, the first limit switch 141R or the second limit switch 141L stops the driving of the rolling motor 136 , for example.

As shown in FIG. 2 , the transplanting operation machine 4 has a first sensing roller 126R (sensing roller 126 ) arranged in front of the first transplanting body 12R and a second sensing roller arranged in front of the second transplanting body 12L. 126L (sensing roller 126). The first sensing roller 126R is provided on the first unit frame 38R. That is, the first transplant unit 63R includes a first sensing roller 126R. The second sensing roller 126L is provided on the second unit frame 38L. That is, the second transplant unit 63L includes a second sensing roller 126L.

As shown in FIG. 22, the 1st sensing roller 126R is a member for detecting the height of the 1st transplanting surface 144R which is the transplanting surface of the field 6 corresponding to the 1st transplanting body 12R. In other words, the first sensing roller 126R is a member for detecting the height of the first ridge 143R where the seedling 7 is transplanted by the first transplanting body 12R.

The second sensing roller 126L is a member for detecting the height of the second transplanting surface 144L which is the transplanting surface of the field 6 corresponding to the second transplanting body 12L. In other words, the second sensing roller 126L is a member for detecting the height of the second ridge 143L where the seedlings 7 are transplanted by the second transplanting body 12L.

The first sensing roller 126R rolls on the first transplanting surface 144R, and moves up and down following the height change of the first transplanting surface 144R. The second sensing roller 126L rolls on the second transplanting surface 144L, and moves up and down following the height change of the second transplanting surface 144L.

As shown in FIG. 25 , the first sensing roller 126R is supported by the first unit frame 38R via a first roller support mechanism 145R so as to be able to swing up and down. The second sensing roller 126L is supported by the second unit frame 38L via a second roller support mechanism 145L so as to be able to swing up and down.

The first roller support mechanism 145R has a first roller bracket 146R that supports the first sensing roller 126R so as to be able to swing up and down, and biases the first roller bracket 146R downward to press the first sensing roller 126R against the field surface (ground). ) of the first biasing spring (spring) 147R. The first roller bracket 146R has a first arm 148A, a second arm 148B, and a connection member 148C. The first arm 148A is arranged outside the body of the first sensing roller 126R, and the second arm 148B is arranged inside the body of the first sensing roller 126R. The first arm 148A and the second arm 148B protrude forward from the first sensing roller 126R. The connection member 148C connects the first arm 148A and the second arm 148B on the front side of the first sensing roller 126R.

As shown in FIGS. 25 and 27 , a support bracket 149 is provided on the first unit frame 38R. The support bracket 149 has a fixing plate 149A provided over the first unit bracket 69 and the second unit bracket 70 and a fixing plate 149B fixed to the fixing plate 149A. The mounting plate 149B is arranged in front of the first sensing roller 126R. The mounting plate 149B is formed to have a width corresponding to the width of the first sensing roller 126R in the body width direction K2. In addition, the mounting plate 149B has a first side plate portion 149a on the outer end side in the body width direction K2 and a second side plate portion 149b on the inner end side in the body width direction K2. Front portions of the first arm 148A and the second arm 148B are pivotally supported by the first side plate portion 149 a and the second side plate portion 149 b via the pivot shaft 150 . The first sensing roller 126R is rotatably supported on the rear portions of the first arm 148A and the second arm 148B by a roller shaft 151 having an axis extending in the body width direction K2.

As shown in FIGS. 25 and 26 , the first urging spring 147R is formed of a compression coil spring, and is fitted on the outside of the rod member 152 . The lower portion of the lever member 152 is pivotally supported by a lever shaft 153 fixed to the second arm 148B. The upper part of the rod member 152 is supported vertically by the support strut 154 fixed to the second side frame 65B of the first unit frame 38R so as to be movable up and down along the axis direction of the rod member 152 . The first urging spring 147R is interposed in a compressed state between the spring receiving plate 155 attached to the rod member 152 and the support stay 154 .

The second roller support mechanism 145L has a second roller bracket 146L that supports the second sensing roller 126L so as to be able to swing up and down, and urges the second roller bracket 146L downward to press the second sensing roller 126L against the field surface (ground). ) of the second biasing spring (spring) 147L. The second roller bracket 146L is configured in the same manner as the first roller bracket 146R. The second roller bracket 146L is supported by the second unit frame 38L by the support bracket 149 , and the second sensing roller 126L is rotatably supported by the roller shaft 151 . The second urging spring 147L is formed of a compression coil spring, and is fitted in the rod member 152 on the side of the second unit frame 38L. The lever member 152 is pivotally supported by the second roller bracket 146L, and is supported by a support column 154 fixed to the second side frame 65B of the second unit frame 38L.

Regarding the height (height change) of the first transplant surface 144R, the first sensor mechanism 156R detects the amount of swing of the first roller bracket 146R (the amount of change in the vertical position of the first sensing roller 126R). Regarding the height (change in height) of the second transfer surface 144L, the amount of swing of the second roller bracket 146L (the amount of change in the vertical position of the second sensing roller 126L) is detected by the second sensor mechanism 156L.

As shown in FIGS. 25 and 27 , the first sensor mechanism 156R has a first height detection sensor 157R and a first detection arm 159R. The first height detection sensor 157R is formed of a potentiometer. The first height detection sensor 157R is attached to the sensor bracket 158 fixed to the second side plate portion 149b on the first unit frame 38R side. The first detection arm 159R has an arm main body 160 and an abutment 161 . The front part of the arm main body 160 is connected with the rotation detection element of the 1st height detection sensor 157R, and can rotate together with this rotation detection element. The abutment piece 161 is fixed at the rear of the arm main body 160 . The abutment 161 is formed of a pin, and is abutted against the second arm 148B of the first roller bracket 146R. The arm main body 160 can swing up and down concentrically with the first roller bracket 146R, and the first detection arm 159R swings up and down together with the first roller bracket 146R, so that the first height detection sensor 157R detects the first roller bracket. 146R's amount of swing. Thereby, the height (height change) of 1st transplant surface 144R can be detected.

The second sensor mechanism 156L has a second height detection sensor 157L and a second detection arm 159L. The second height detection sensor 157L is also formed of a potentiometer. The second height detection sensor 157L is attached to the sensor bracket 158 fixed to the second side plate portion 149b on the second unit frame 38L side. The second detection arm 159L has an arm main body 160 and an abutment 161 . The front part of the arm main body 160 is connected with the rotation detection element of the 2nd height detection sensor 157L, and can rotate together with this rotation detection element. The contact piece 161 is fixed on the rear of the arm body 160 . The abutment 161 is formed of a pin and is abutted against the second arm 148B of the second roller bracket 146L. The arm main body 160 can swing up and down concentrically with the second roller bracket 146L, and the second detection arm 159L swings up and down together with the second roller bracket 146L, so that the second height detection sensor 157L detects the second roller bracket. 146L of swing volume. Thereby, the height (height change) of 144 L of 2nd transplant surfaces can be detected.

As shown in FIGS. 25 and 26 , the first roller support mechanism 145R is provided with a scraper 162 for scraping mud on the first sensing roller 126R. The squeegee 162 is attached to the squeegee bracket 163 . The scraper bracket 163 is provided so as to straddle the first sensing roller 126R and is fixed to the first roller bracket 146R. The scraper 162 for scraping mud on the second sensing roller 126L is also provided on the second roller support mechanism 145L in the same manner.

As shown in FIG. 22 , the first height detection sensor 157R and the second height detection sensor 157L are connected to the control device 131 and transmit detection values to the control device 131 . The control device 131 acquires detection values detected by the first height detection sensor 157R and the second height detection sensor 157L.

When there is a height difference between the first transplanting surface 144R and the second transplanting surface 144L, the transplanting depth of the seedlings 7 transplanted by the first transplanting body 12R and the transplanting depth of the seedlings 7 transplanted by the second transplanting body 12L The planting depth is different. Therefore, when there is a height difference between the first transplanting surface 144R and the second transplanting surface 144L, in order to make the height of the first transplanting body 12R relative to the first transplanting surface 144R (transplanting surface), that is, the first height H1 and The second height H2 which is the height of the second transplanting body 12L with respect to the second transplanting surface 144L (transplanting surface) becomes a predetermined height, and the transplanting working machine 4 is swung around the rolling axis X1. Specifically, the control device 131 calculates the height difference between the first height H1 and the second height H2 based on the detection values detected by the first sensing roller 126R and the second sensing roller 126L, and makes the transplanting machine 4 rotate around the rolling axis. X1 swings in a direction to reduce the height difference. In other words, the control device 131 calculates the height difference between the first sensing roller 126R and the second sensing roller 126L based on the detection values detected by the first sensing roller 126R and the second sensing roller 126L, and makes the transplanting machine 4 rotate around the rolling axis. X1 swings in a direction to reduce the height difference between the first sensing roller 126R and the second sensing roller 126L.

More specifically, when the second transplanting surface 144L is higher than the first transplanting surface 144R, there will be a height difference between the first sensing roller 126R and the second sensing roller 126L. In this case, the control device 131 swings the transplanting work machine 4 around the rolling axis X1 so as to rise to the left and lower to the right. Thereby, the transplanting depth of the seedling 7 transplanted by 12 R of 1st transplanting bodies, and the transplanting depth of the seedlings 7 transplanted by 12 L of 2nd transplanting bodies are basically made into the same depth. In addition, when a height difference is provided in advance between the first height H1 and the second height H2 by the angle adjustment unit 194 described later, the transplanting operation machine 4 is rotated around the rolling axis so as to return to the set height. Heart x1 swings.

In addition, the control device 131 raises and lowers the transplanting machine 4 based on the unevenness of the transplanting surface (field 6 ) detected by one of the first sensing roller 126R and the second sensing roller 126L, and uses the one of the sensing rollers to detect the unevenness of the transplanting surface (field 6 ). The height difference between the first sensing roller 126R and the second sensing roller 126L is calculated using the roller as a reference.

In the present embodiment, by using the first sensing roller 126R to detect the unevenness of the first transplanting surface 144R, and according to the unevenness of the first transplanting surface 144R, the transplanting operation machine 4 is raised and lowered, so that the machine body front and rear direction K1 The transplanting depths of the seedlings 7 on (the longitudinal direction of the ridge) are the same depth. Specifically, when the transplanting surface becomes high, the transplanting work machine 4 is raised, and when the transplanting surface becomes low, the transplanting work machine 4 is lowered. In addition, the height difference is calculated from the height of the second sensing roller 126L relative to the first sensing roller 126R with the first sensing roller 126R as a reference. By calculating the height difference between the first sensing roller 126R and the second sensing roller 126L based on one sensing roller of the first sensing roller 126R or the second sensing roller 126L, it is possible to stably move the transplanting machine 4 around. Scroll control for swinging of the scroll axis X1.

In addition, the second sensing roller 126L may be used to detect the unevenness of the second transplanting surface 144L, and the transplanting operation machine 4 may be raised and lowered, and the first sensing roller 126R and the second sensing roller 126R may be used as a reference to calculate the difference between the first sensing roller 126R and the second sensing roller 126L. The height difference of the roller 126L.

In addition, in this embodiment, when the height difference between the first sensing roller 126R and the second sensing roller 126L is smaller than a predetermined value, the rolling control by the control device 131 is not performed, and the transplanting machine 4 rotates around the rolling axis X1. free swing to absorb height difference. When the difference in height between the first transplanting surface 144R and the second transplanting surface 144L is greater than or equal to a predetermined value, the control device 131 operates the rolling mechanism 135 to perform rolling control.

As shown in FIG. 28 , a swing frame 164 is provided on each of the first unit frame 38R and the second unit frame 38L so as to be able to swing up and down. Since the first unit frame 38R and the second unit frame 38L are fixed to the main frame 37, the swing frame 164 can swing up and down with respect to the main frame 37 (transplant frame 36).

The swing frame 164 provided in the first unit frame 38R is called a first swing frame 164R, and the swing frame 164 provided in the second unit frame 38L is called a second swing frame 164L. Since the first swing frame 164R and the second swing frame 164L have left-right symmetrical and identical structures, the first swing frame 164R and the second swing frame 164L will be described together.

As shown in FIGS. 28 and 29 , the swing frame 164 has a first side frame portion 164A outside the body, a second side frame portion 164B inside the body, and the first side frame portion 164A and the second side frame portion. The middle frame portion 164C connecting the front and rear middle portions of 164B, and the rear frame portion 164D connecting the rear portions of the first side frame portion 164A and the second side frame portion 164B are fixed to the first side frame portion by bolts or welding. The first support portion 164E at the front portion of 164A and the second support portion 164F are fixed to the front portion of the second side frame portion 164B by bolts, welding, or the like.

The first support portion 164E is rotatably supported by the first unit bracket 69 about a horizontal axis (axis extending in the body width direction), and the second support portion 164F is rotatably supported by the second unit bracket 70 about the horizontal axis. Therefore, the rear portion of the swing frame 164 can swing up and down. Specifically, the transplanting drive shaft 165 is supported so as to be rotatable about a horizontal axis over the first unit bracket 69 and the second unit bracket 70 , and the first support portion 164E is rotatably supported on the transplanting drive shaft 165 . And the second support portion 164F. The transmission gear 166 is provided on the transplanting drive shaft 165 so that it can rotate integrally, and rotational power is transmitted from the drive main shaft 71 to this transmission gear 166 to rotate the transplanting drive shaft 165 .

As shown in Fig. 28 and Fig. 29, the first swinging frame 164R is provided with a first transplanting lifting mechanism 167R (transplanting lifting mechanism 167), and the first transplanting lifting mechanism 167R is provided with a first Transplant 12R. 167 L of 2nd transplant elevating mechanisms (transplanting elevating mechanisms 167) are provided in 164 L of 2nd swing frames, and the 2nd transplanting body 12L is provided in this 2nd transplanting elevating mechanisms 167L so that a reciprocating movement up and down is possible. The first transplanting body 12R and the first transplanting lifting mechanism 167R constitute the first transplanting device 35R (transplanting device 35), and the second transplanting body 12L and the second transplanting lifting mechanism 167L constitute the second transplanting device 35L ( Transplanting device 35).

The 1st covering wheel 62R is supported by the 1st swing frame 164R by the 1st roll frame (roll frame 168) 168R so that vertical swing is possible. The second covering wheel 62L is supported by the second swing frame 164L by the second roll frame 168L (roll frame 168 ) so as to be able to swing up and down.

Since the first roll frame 168R and the second roll frame 168L have the same structure, the first roll frame 168R and the second roll frame 168L will be described together.

As shown in FIGS. 29 and 30 , the roller frame 168 is formed of a pipe or the like, and has a first side rod portion 168A outside the body, a second side rod portion 168B inside the body, and a rear rear rod portion 168C. The first side bar portion 168A has a first portion 168a extending in the front-rear direction of the body and a second portion 168b protruding upward from the rear end of the first portion 168a. The front portion of the first portion 168a is connected to a bracket member 169 protruding downward from the first side frame 65A so as to be rotatable around the horizontal axis. The second side bar portion 168B has a first portion 168c extending in the front-rear direction of the body and a second portion 168d protruding upward from the rear end of the first portion 168c. The front portion of the first portion 168c is connected to the bracket member 170 protruding downward from the second side frame 65B so as to be rotatable around the horizontal axis. The rear pole portion 168C connects rear portions of the first side pole portion 168A and the second side pole portion 168B to each other. Specifically, the upper ends of the second portion 168b and the second portion 168d are connected to each other. The cover wheel 62 is attached to the rear of the first location 168 a and the rear of the first location 168 c via the support member 171 .

A first transplant depth adjustment mechanism 172R (transplant depth adjustment mechanism 172) is provided over the first swing frame 164R and the first roller frame 168R, and a second transfer depth adjustment mechanism is provided over the second swing frame 164L and the second roller frame 168L. Planting depth adjustment mechanism 172L (transplanting depth adjustment mechanism 172). Since the first transplant depth adjustment mechanism 172R and the second transplant depth adjustment mechanism 172L have the same structure, the first transplant depth adjustment mechanism 172R and the second transplant depth adjustment mechanism 172L will be described together.

The transplanting depth adjustment mechanism 172 is a mechanism which fixes the space|interval of the roller frame 168 and the swing frame 164 changeably, and adjusts the transplanting depth of the seedling 7 by changing a space|interval.

As shown in FIGS. 29 and 30 , the transplanting depth adjustment mechanism 172 has a mechanism frame 173 , an adjustment motor 174 , a drive mechanism 175 and a link member 176 . The mechanism frame 173 is erected on the rear frame portion 164D of the swing frame 164 . The adjustment motor 174 is formed by an electric motor and is connected to the control device 131 . The adjustment motor 174 is installed on the mechanism frame 173 . In detail, the adjustment motor 174 is installed on the upper part of the mechanism frame 173 . The drive mechanism 175 is driven by an adjustment motor 174 . Specifically, the drive mechanism 175 has a first gear 177 driven by the adjustment motor 174 and a second gear 178 that rotates while meshing with the first gear 177 . The link member 176 connects the drive mechanism 175 to the roller frame 168 and moves up and down in conjunction with the drive of the drive mechanism 175 .

The first gear 177 is formed of a pinion, and the second gear 178 is formed of a sector gear. The first gear (pinion gear) 177 is rotatably attached to the upper portion of the mechanism frame 173 . The lower portion of the second gear (sector gear) 178 is pivotally supported by the mechanism frame 173 , and has a gear portion 178 a meshing with the first gear (pinion gear) 177 on the upper portion. The second gear 178 (sector gear) has a connection portion 178b to which the link member 176 is connected. The upper part 176a of the link member 176 is connected to the connection part 178b via a ball joint. The lower portion 176b of the link member 176 is connected to the bracket member 179 fixed to the rear rod portion 168C via a ball joint.

In the above-described transplant depth adjustment mechanism 172 , the adjustment motor 174 rotates the first gear 177 to swing the second gear 178 around the pivot support portion 180 . When the second gear 178 swings, the connection portion 178b moves up and down to move the link member 176 up and down. As the link member 176 moves up and down, the swing frame 164 swings up and down relative to the roller frame 168 . Thereby, the distance between the roller frame 168 and the swing frame 164 changes, and the height of the transplanting body 12 with respect to the covering wheel 62 changes. When changing the height of the transplanting body 12 with respect to the cover wheel 62, since the height of the transplanting body 12 with respect to a transplanting surface changes, the depth of transplantation can be changed. Moreover, by stopping the drive of the adjustment motor 174, the space|interval of the roller frame 168 and the swing frame 164 becomes constant, and can maintain the transplanting depth set.

The swing frame 164 swings up and down because the covering wheel 62 follows the unevenness of the field 6 . The swing frame 164 is set to be located in the center of the swing allowable range. Since the swing frame 164 swings up and down with respect to the transplant frame 36 when the transplant depth is changed, the relative position in the vertical direction with respect to the transplant frame 36 changes. Therefore, when changing the interval between the roller frame 168 and the swing frame 164, the control device 131 makes the main frame 37 (transplant frame 36) to make the swing frame 164 relative to the transplant frame 36 according to the change of the interval between the roll frame 168 and the swing frame 164. The relative position returned by the direction of lift.

The transplant depth adjustment mechanism 172 has the detection part 182 which detects the change amount of the space|interval of the roller frame 168 and the swing frame 164. As shown in FIG. The detection unit 182 is connected to the control device 131 , and feeds back the change amount of the distance between the roller frame 168 and the swing frame 164 to the control device 131 . The detection unit 182 is constituted by, for example, a potentiometer. The rotation detection element of the detection unit 182 is connected to a pivot 181 that pivotally supports the second gear 178 . The pivot 181 rotates integrally with the second gear 178 . Therefore, the detection unit 182 detects the rotation amount of the second gear 178 .

FIG. 31 shows a soil covering pressure adjustment mechanism 183 for adjusting the soil covering pressure of the covering wheel 62 (the force with which the covering wheel 62 presses the ground). The overburden pressure regulating mechanism 183 has a support plate 185 , an operating rod 184 , a spring arm 186 , a first fixed bracket 187A, a second fixed bracket 187B, a linkage connecting rod 188 and an adjustment spring 189 .

The support plate 185 is fixed to the rear of the unit frame 38 . The operating lever 184 is attached to the support plate 185 so as to be swingable via a pivot shaft 185A. The spring hanging arm 186 is fixed to the operating rod 184 by bolts and swings integrally with the operating rod 184 . The first fixing bracket 187A is fixed to the swing frame 164 . The second fixing bracket 187B is fixed to the unit frame 38 . The linkage link 188 has a first link 188A pivotally supported on the first fixed bracket 187A and a second link 188B pivotally supported on the second fixed bracket 187B. The first link 188A is pivotally connected to the second link 188B. The adjustment spring 189 is formed of a tension coil spring, one end is hooked to the locking hole 186a formed at the end of the spring arm 186, and the other end is hooked to the locking hole 188a formed at the first link 188A.

In the soil cover pressure adjustment mechanism 183 , by swinging the operation lever 184 around the pivot 185A, the spring force of the adjustment spring 189 is changed, whereby the cover soil pressure can be adjusted. A plurality of locking portions 185a are provided on the upper portion of the support plate 185, and by locking the locking piece 184a of the operating lever 184 to the locking portions 185a, the operating lever 184 can be fixed at a plurality of positions.

As shown in FIG. 32 , the transplant depth adjustment mechanism 172 is operated by the operation unit 127 . As shown in FIGS. 1 and 2 , the operation unit 127 is provided near the driver's seat 3 . In detail, the operation part 127 is provided in the upper part of the steering column 27 in front of the driver's seat 3 in an inclined shape that shifts upward as it goes forward. In addition, the operation unit 127 is arranged below the steering wheel 25 . In addition, the operation unit 127 can be operated by an operator seated in the driver's seat 3 . As shown in FIGS. 21 and 30 , the operation unit 127 is connected to the control device 131 .

As shown in FIG. 32 , the operation unit 127 transmits an operation signal for operating the transplant depth adjustment mechanism 172 to the control device 131 . Moreover, the operation part 127 has the transplant depth adjustment part 190 which operates the transplant depth adjustment mechanism 172. As shown in FIG. The transplant depth adjustment part 190 is provided in the rear part (lower part) of the operation part 127. As shown in FIG. The transplant depth adjustment unit 190 has an operation dial (rotation operation member) 191 and an indicator 192 showing the rotation position of the operation dial 191 . The mark 192 is provided on the upper surface of the operation dial 191 . By rotating the operation dial 191 to the left or right, the transplant depth adjustment mechanism 172 (adjustment motor 174 ) is operated. The transplant depth adjustment part 190 has the depth display part 193 which shows the operation direction of the operation dial 191. As shown in FIG. Depth display unit 193 has characters of “dark” provided on the right side of operation dial 191 and characters of “light” provided on the left side of operation dial 191 .

In the transplanting depth adjustment unit 190 described above, when the operation dial 191 is turned to the right, the first operation signal S1 is sent from the operation unit 127 to the control device 131 . When the first operation signal S1 is acquired, the control device 131 operates the transplant depth adjustment unit 190 in a direction to increase the transplant depth. In the state where the sign 192 faces toward the front (top) shown in Figure 32, the transplanting depth is set as a reference. From the state where the mark 192 faces forward, the more the operation dial 191 is rotated to the right, the more the transplanting depth is from The depth of the reference becomes deeper. In addition, when the operation dial 191 is turned to the left, the second operation signal S2 is sent from the operation unit 127 to the control device 131 . When the second operation signal S2 is acquired, the control device 131 operates the transplant depth adjustment unit 190 in a direction in which the transplant depth becomes shallower. From the state where the indicator 192 faces forward, the more the operation dial 191 is turned to the left, the shallower the transplanting depth becomes from the reference depth. Moreover, when turning the operation dial 191 to the right, the transplanting depth may be made deep, and when turning it to the left, the transplanting depth may be made shallow.

The operation dial 191 can be operated step by step, and the transplanting depth can be adjusted step by step. The operation dial 191 may be operated continuously, and the transplant depth may be continuously adjusted.

Since the operator 2 can operate the transplant depth adjustment mechanism 172 by the transplant depth adjustment part 190 in the state seated on the driver's seat 3, the adjustment of the transplant depth of the seedling 7 can be performed easily.

The operation part 127 has an angle adjustment part 194 . The angle adjustment unit 194 performs an operation of lowering one side in the body width direction K2 of the transplanting work machine 4 around the rolling axis X1 or lowering the other side. By lowering one side of the body width direction K2 of the transplanting operation machine 4, the transplanting body 12 on this side is lowered, and by lowering the other side of the body width direction K2 of the transplanting operation machine 4, the transplanting body 12 is lowered. The transplant body 12 on the other side lowers. Thereby, fine adjustment of the transplant depth can be performed.

For example, even if the first transplanting surface 144R and the second transplanting surface 144L are at the same height, there are differences between the transplanting depth of the seedlings 7 transplanted by the first transplanting body 12R and the height of the seedlings 7 transplanted by the second transplanting body 12L. The case where the transplanting depth of seedling 7 is slightly different. At this time, fine adjustment of the transplant depth is performed, for example, by lowering the transplant body 12 whose transplant depth is shallow. Scroll control is performed in a state where this adjustment is performed.

As shown in FIG. 32 , the angle adjustment unit 194 is provided on the front portion (upper portion) of the operation unit 127 and has a first switch 195 and a second switch 196 arranged side by side in the body width direction K2. The first switch 195 sends a first lowering signal to the control device 131, and the first lowering signal is a signal to lower one side of the transplanting machine 4 (the first transplanting body arrangement side) around the rolling axis X1. In other words, the first switch 195 sends the first lowering signal S3 to the control device 131 , the first lowering signal S3 is a signal to lower the first transplanting body configuration side of the transplanting machine 4 around the rolling axis X1 . When the first lowering signal S3 is acquired, the control device 131 lowers the right side of the transplanting work machine 4 .

The second switch 196 sends a second lowering signal S4 to the control device 131, and the second lowering signal S4 is to make the other side of the body width direction K2 of the transplanting operation machine 4 (the side where the second transplanting body is arranged) rotate around the rolling axis. Heart X1 down signal. When the second lowering signal S4 is acquired, the control device 131 lowers the left side of the transplanting work machine 4 .

For example, whenever the first switch 195 or the second switch 196 is pressed, the transplanting operation machine 4 is rotated by a predetermined angle around the rolling axis X1, and the transplanting depth can be adjusted in a predetermined unit of size (a few millimeters or a few centimeters). Make minor adjustments. In addition, it is not limited to this.

In addition, the operation part 127 has a transplant part height adjustment part 197 . The transplanting part height adjustment part 197 is arrange|positioned in the middle part of the operation part 127 (between the angle adjustment part 194 and the transplanting depth adjustment part 190), and has the up switch 198 and the down switch 199. The down switch 199 is arranged on the right and behind (below) the up switch 198 .

The transplanted part height adjustment part 197 corrects the difference in sinking amount of the sensing roller 126 and the covering wheel 62 . In addition, it is also used for the correction of the initial value deviation of the machine and electricity. The purpose is to prevent the swing frame 164 from greatly shifting up or down the swing range.

This will be described in detail below. In addition, the numerical value described in the following description is an illustration, and is not restrictive.

The swinging frame 164 that swings up and down at the front portion (transplanting drive shaft 165) as a fulcrum is equipped with a transplanting body 12 and a soil covering wheel 62. The frame 164 is lowered, and the transplanting body 12 is about 1 cm deep underground, and the transplanting depth is about 1 cm deeper.

The swing frame 164 has a swing range of about 4 cm at the cover wheel 62, and if the cover wheel 62 is located in the center of the swing range, the transplanting depth can be kept constant even if the unevenness of the ridge is ±2 cm.

However, if the height of the transplant frame 36 (the height of the fulcrum of the swing frame 164 (the height of the transplant drive shaft 165)) is the same, then when the soil covering wheel 62 is promoted by 1 cm, the swing frame 164 deviates to the lower side of the swing range. The uneven adaptation range becomes -1cm～+3cm. Therefore, when the transplanting depth is increased by 1 cm, the covering wheel 62 is raised by 1 cm, and the transplanting frame 36 is lowered by 1 cm, so that the swing frame 164 is positioned at the center of the swing range.

In addition, the adjustment range of the transplanting depth was -2cm～+5cm, and 0 was set as the upper surface of the root pot (the bed soil of the seedling 7) and the upper surface of the ridge being the same surface. 0 is not necessarily the same surface, and most of them use the adjustment margin of the deep planting side.

In addition, the ground contact height of the sensing roller 126 is different from the ground contact height of the covering wheel 62 . That is, since the covering wheel 62 has a higher pressing load than the sensing roller 126 , the covering wheel 62 sinks and the covering wheel 62 becomes lower than the sensing roller 126 . In terms of design, it was observed that the soil-covering wheel 62 side became lower by 1 cm, but the difference in sinking amount varied according to the adjustment of the pressing load of the soil-covering wheel 62, the hardness of the upper surface of the ridge, the presence or absence of multi-film, etc. In order to correct the difference in the sinking amount, an implanted part height adjusting part 197 is provided.

When the lowering switch 199 is pressed, the transplantation portion height adjustment unit 197 sends a correction value (first correction value S5 ) to the control device 131 , and the control device 131 lowers the transplantation frame 36 based on the correction value. Specifically, usually, when the difference between the contact surface of the sensing roller 126 and the soil covering wheel 62 is 1 cm, the ridge is relatively soft and the sinking of the soil covering wheel 62 is relatively large (the swing frame 164 deviates to the bottom of the swing range). When the ground difference is large, for example, when the ground plane difference is 1.5 cm, press the down switch 199 ("lower") to lower the transplant frame 36 by 0.5 cm (promote the sensing roller by 0.5 cm) to make the swing Correction is performed so that the frame 164 becomes the center of the swing range.

In addition, when the lifting switch 198 is pressed, the transplantation part height adjustment unit 197 sends a correction value (second correction value S6 ) to the control device 131 , and the control device 131 lifts the transplantation frame 36 based on the correction value. Specifically, when the ridge is relatively hard or there are many films, the ground contact surface height difference between the sensing roller 126 and the covering wheel 62 is small, and the swing frame 164 deviates to the upper side of the swing range. Therefore, the pressing Lifting switch 198 ("high") causes graft frame 36 to lift.

In addition, for example, each time the up switch 198 and the down switch 199 are pressed, the numerical value may be changed in predetermined size units. In addition, if the target of the covering wheel 62 is 2 cm in the adjustment of the transplanting depth, the sensor roller 126 is 1 cm higher than the covering wheel 62 by 3 cm as the target. That is, when the detected value of the sensing roller 126 is +1 cm (4 cm), the transplant frame 36 is raised, and when it is -1 cm (2 cm), the transplant frame 36 is lowered. In addition, when the lifting switch 198 is pressed to make the height of the transplant frame "higher" by 0.5 cm, the sensing roller 126 is controlled to be 2.5 cm, which is 0.5 cm higher (1-0.5=) than the soil covering wheel 62, as the target (the sensing roller height target value becomes low, but conversely transplant frame height becomes high). That is, when the detection value of the sensing roller 126 is +1 cm (3.5 cm), the transplant frame 36 is raised, and when it is -1 cm (1.5 cm), the transplant frame 36 is lowered. In addition, when the lowering switch 198 is pressed to "lower" the height of the transplant frame by 0.5 cm, the sensing roller 126 is controlled to be 3.5 cm higher than the covering wheel 62 by 1.5 cm (1+0.5=) as a target. That is, when the detection value of the sensing roller 126 is +1 cm (4.5 cm), the transplant frame 36 is raised, and when it is -1 cm (2.5 cm), the transplant frame 36 is lowered.

Here, 167 R of 1st transplant elevating mechanisms and 167 L of 2nd transplant elevating mechanisms are demonstrated with reference to FIG.33, FIG.34. Since the first transplant elevating mechanism 167R and the second transplant elevating mechanism 167L have left-right symmetry and the same structure, the first transplant elevating mechanism 167R and the second transplant elevating mechanism 167L will be described together.

As shown in FIGS. 33 and 34 , the transplanting elevating mechanism 167 has a first rotary box 201 , a second rotary box 202 and a support plate 121 . The first rotary case 201 is rotatably supported by the first side frame portion 164A via a first spindle 205 . Specifically, a bearing member 204 is provided on the bracket member 169 provided on the first side frame portion 164A, and the first support shaft 205 is rotatably supported by the bearing member 204 , and the first support shaft 205 supports the first support shaft 205 . Rotary box 201. The sprocket 203 is attached to the support shaft 205 so that it can rotate integrally. As shown in FIG. 28 , power is transmitted to the sprocket 203 from the sprocket 207 attached to the transplant drive shaft 165 so as to be integrally rotatable.

As shown in FIGS. 33 and 34 , the second rotary case 202 is rotatably supported on the free end side of the first rotary case 201 around the second support shaft 206 . The support plate 121 is supported by the second rotary box 202 . Specifically, a bearing member 209 is provided on the upper portion of the support plate 121 via a pivot support shaft 208, and the bearing member 211 is fixed to the lower end side of the plate member 210 protruding downward from the bearing member 209, and is supported by the bearing member 211. There is a third support shaft 215 provided on the second rotary box 202 . The transplant body 12 is supported on the support plate 121 . Specifically, the transplant body 12 has a front structure 12A and a rear structure 12B. The upper front side of the front structure 12A is supported to be rotatable around a pivot 212A provided on the support plate 121. The upper rear side of the rear structure 12B is It is supported so as to be rotatable about a pivot shaft 212B provided on the support plate 121 .

The transplant lifting mechanism 167 is driven by the power transmitted to the first support shaft 205 to lift the transplant body 12 up and down. In detail, as shown in FIG. 34 , a power transmission device is provided in the first rotary box 201 and the second rotary box 202 in such a manner that when the first rotary box 201 rotates around the first shaft 204 in the direction of the arrow Y1 , the second rotary case 202 rotates in a direction (arrow Y2 direction) opposite to that of the first rotary case 201 in conjunction with the rotation of the first rotary case 201 . By rotating the first rotary box 201 and the second rotary box 202 , the support plate 121 moves vertically in parallel while moving back and forth, and the transplant body 12 moves up and down (lifts) so as to draw an elliptical trajectory.

As shown in FIG. 34 , the transplanting body 12 is arranged on the side of the transplanting elevating mechanism 167 (the second rotating box 202 ). Specifically, the transplant body 12 is installed at a position overlapping the second rotary box 202 in a side view. Thereby, the transplanting device (transplanting body 12 and transplanting elevating mechanism 167) can be configured compactly, and as shown in FIG. 9.

When the transplanting bodies 12 are stacked on the side of the transplanting elevating mechanism 167 , soil may be applied from the root pot of the seedlings 7 to the transplanting elevating mechanism 167 when the seedlings 7 are put into the transplanting bodies 12 . Therefore, as shown in FIGS. 35 and 36 , a cover member 213 is provided on the upper portion of the support plate 121 . The cover member 213 has a first cover portion 213A that covers the bearing member 209, the bearing member 211, the bearing member 216A supporting the pivot shaft 212A, and the bearing member 216B supporting the pivot shaft 212B, and a second cover portion 213B, The second cover portion 213B covers the space between the support plate 121 and the transplant body 12 from above.

As shown in FIGS. 35 and 36 , the irrigation pipe 120 is provided on the side surface 214a on the transplanting body 12 side of the first cover portion 213A. Specifically, the pipe support 214 is attached to the side surface, and the irrigation pipe 120 is fixed to the pipe support 214 . Therefore, the irrigation pipe 120 is installed on the support plate 121 through the cover member 213 and the pipe support 214 .

As shown in FIG. 37, 9 R of 1st seedling mounting bases and 9 L of 2nd seedling mounting bases are arranged side by side in the body width direction K2, and are mounted on the main frame 37. As shown in FIG. 9 R of 1st seedling mounting stands and 9 L of 2nd seedling mounting stands are supported by the rail member (1st rail 56, the 2nd rail 58) of the main frame 37 so that movement is possible in the body width direction K2.

As shown in FIG. 38 , the inversion guide 13 is provided at the center, right and left sides in the body width direction K2 of the lower portion of the seedling mounting table 9 , and is attached to a support rod 217 provided at the lower portion of the seedling mounting table 9 . The empty tray guide 14 has a first rod portion 14A disposed outside the body of the seedling mounting table 9, a second rod portion 14B disposed on the inside of the body of the seedling mounting table 9, and connecting the first rod portion 14A and the second rod portion 14A. The connecting rod part 14C which connects the upper part of the two rod part 14B mutually. The lower part of the seedling mounting base 9 has the 1st storage part 218 provided in the right side, and the 2nd storage part 219 provided in the left side.

As shown in FIGS. 39 and 40 , the first seedling mounting stand 9R has a first holder member 221R. The first holder member 221R has an upper holder 222R and a lower holder 223R provided on the lower side of the upper holder 222R. The upper holder 222R has a first post 224R attached to the first storage portion 218 , a second post 225R attached to the second accommodating portion 219 , and a connecting post 226R connecting the first post 224R and the second post 225R. The first support plate 227R is fixed to the body inner side (left side) of the connecting support 226R. A connection bracket 228 is fixed to the connection post 226R (see FIG. 46 ). The connection bracket 228 is arranged on the body outer side of the first pillar plate 227R and is also fixed to the first pillar plate 227R. The operation shaft 229 extended along the body width direction K2 is provided in the lower part of 9 R of 1st seedling mounting bases so that rotation may be carried out over the body width direction K2. The body outer side of the operating shaft 229 protrudes farther outward than the first housing portion 218 . Two followers 230 arranged at intervals in the body width direction K2 are attached to the working shaft 229 .

The lower holder 223R has a first post 231R attached to the first housing portion 218 , a second post 232R attached to the second housing portion 219 , and a connecting post 233R connecting the first post 231R and the second post 232R.

The plurality of first rollers 234R are rotatably attached to the connection support 226R and the connection support 233R. The first roller 234R attached to the connecting support 226R is supported by the first rail 56 so as to be movable in the body width direction K2. The 1st roller 234R attached to the connection support|pillar 233R is supported by the 2nd rail 58 so that movement in the body width direction K2 is possible.

As shown in FIG.39, FIG.40, 9 L of 2nd seedling mounting stands have 221 L of 2nd holder members. The second holder member 221L has an upper holder 222L and a lower holder 223L provided on the lower side of the upper holder 222L. The upper holder 222L has a first post 224L attached to the first storage portion 218 , a second post 225L attached to the second accommodating portion 219 , and a connecting post 226L connecting the first post 224L and the second post 225L. A second support plate 227L is fixed to the body inner side (right side) of the connecting support 226L. The lower holder 223L has a first post 231L attached to the first storage portion 218 , a second post 232L attached to the second accommodating portion 219 , and a connecting post 233L connecting the first post 231L and the second post 232L.

The plurality of second rollers 234L are rotatably attached to the connection support 226L and the connection support 233L. The plurality of second rollers 234L attached to the connecting support 226L are supported by the first rail 56 so as to be movable in the body width direction K2. The plurality of second rollers 234L attached to the connecting support 233L are supported by the second rail 58 so as to be movable in the body width direction K2.

As shown in FIG. 39, the connection member 235 extended in the body width direction K2 is provided over 9 L of 2nd seedling mounting stands from the left part of 9 R of 1st seedling mounting stands. The first pillar plate 227R is bolted to the right portion of the connection member 235 . The second pillar plate 227L is bolt-fixed to the connecting member 235 so that the position can be adjusted in the body width direction K2.

Since the first seedling mounting table 9R and the second seedling mounting table 9L are connected via the connection member 235, the first seedling mounting table 9R and the second seedling mounting table 9L are arranged along the first rail 56 and the second rail 58 in the body width. It moves integrally in the direction K2.

FIG. 39 has shown the state of 9 R of 1st seedling mounting stands and 9 L of 2nd seedling mounting stands when row interval W1 is the narrowest interval. By changing the attaching position of 227 L of 2nd support plates from this state, adjustment of the space|interval of the body width direction K2 of 1st seedling mounting stand 9R and 2nd seedling mounting stand 9L can be performed according to adjustment of row interval W1.

FIG. 41 shows the lateral feed mechanism 236 which intermittently laterally feeds the first seedling mounting table 9R and the second seedling mounting table 9L by one pitch of the tank portion 8a in the body width direction K2. The lateral feed mechanism 236 has the lateral feed shaft 237 arrange|positioned below 9 R of 1st seedling mounting bases. The lateral feed shaft 237 is arranged to extend in the body width direction K2, and is supported by a support body 238 fixed to the first unit frame 38R. The support body 238 is provided in the frame main body 64 of the 1st unit frame 38R. The support body 238 has a first bracket 238A attached to the frame main body 64, a second bracket 238B fixed to the first bracket 238A, a third bracket 238C fixed to the right end side of the second bracket 238B, and a third bracket 238C fixed to the second bracket 238B. The gear boxes 238D of the second bracket 238B and the third bracket 238C, and the fourth bracket 238E provided on the opposite side of the second bracket 238B from the gear box 238D. The infeed shaft 237 is provided throughout the gear box 238D and the fourth bracket 238E. A first transmission sprocket 239 that can rotate integrally with the drive spindle 71 and can move in the axial direction is provided on the lower portion of the third bracket 238C. The first transmission sprocket 239 can transmit power to the second transmission sprocket 240 provided on the second bracket 238B. The power transmitted to the second transmission sprocket 240 is transmitted from the input shaft integrally rotatable to the second transmission sprocket 240 to the traverse shaft 237 via the transmission mechanism in the gear box 238D.

A Napier screw (Japanese: ナピヤねねじ) in which a helical groove (so-called traverse groove) 237 a reciprocating in the axial direction is formed on the outer peripheral surface is used as the traverse feed shaft 237 . A slider 241 having an engaging portion 241 a that engages with the traverse groove 237 a is fitted in the traverse shaft 237 . The connection shaft 242 connected to the connection bracket 228 of the 1st holder member 221R provided in 9 R of 1st seedling mounting bases is provided in the slider 241. As shown in FIG. A vertical feed cam (operation body) 243 is fixed to one end side and the other end side of the horizontal feed shaft 237 .

When the traverse feed shaft 237 rotates, the engaging portion 241a is guided along the traverse groove 237a, and the slider 241 reciprocates in the body width direction K2. Thereby, 9 R of 1st seedling mounting bases can be reciprocated in the body width direction K2. In addition, since the second seedling mounting table 9L is connected to the first seedling mounting table 9R via the connecting member 235, the first seedling mounting table 9R and the second seedling mounting table 9L can reciprocate integrally in the body width direction K2. .

In the case of adjusting the row interval W1, since the first seedling loading table 9R and the first unit frame 38R (first transplanting unit 63R) are connected via the lateral feed mechanism 236 and the first seedling loading table 9R and the second seedling loading table Since 9 L of mounting bases are connected by the connection member 235, the position adjustment of 9 R of 1st seedling mounting bases, 9 L of second seedling mounting bases, and 63 R of 1st transplanting units is carried out integrally in the body width direction K2. The second transplant unit 63L performs position adjustment separately from the first transplant unit 63R. After adjusting the first transplanting unit 63R and the second transplanting unit 63L in the body width direction K2, the position of the second seedling mounting table 9L is adjusted in accordance with the adjusted row interval W1.

FIG. 42 shows the vertical feed mechanism 244 and the seedling take-out device 11 that vertically feed the seedling tray 8 downward by one pitch of the tank portion 8a in the inclined direction. The vertical feed mechanism 244 has the tray conveyance mechanism 245 provided in each of the 1st accommodating part 218 and the 2nd accommodating part 219 of each seedling mounting stand 9. As shown in FIG. The tray transport mechanism 245 has a drive sprocket 246 , a driven sprocket 247 , and an endless transport chain 248 wound around the drive sprocket 246 and the driven sprocket 247 . In the conveyance chain 248, the conveyance pins 249 fitted between the tank parts 8a are provided at intervals in the longitudinal direction. By rotating the drive sprocket 246 in the arrow Y3 direction of FIG. 42 , the seedling tray 8 is vertically fed downward (in the arrow Y4 direction of FIG. 42 ) along the loading plate 10 via the conveyance chain 248 and the conveyance pin 249 .

As shown in FIG. 42 , the seedling taking-out device 11 is arranged behind the lower portion of the seedling mounting table 9 and has a seedling picking claw 250 . The seedling picking claw 250 rushes into the pot part 8a from the rear, penetrates into the root pot of the seedling 7, and withdraws the seedling 7 from the pot part 8a by retreating from the pot part 8a in the state of being stuck in the root pot. After the seedling 7 is taken out, the posture of the seedling claw 250 is changed so that the bed soil (root pot) of the seedling 7 faces the transplanting body 12 below, and then the seedling 7 is released and dropped into the transplanting body 12 .

As shown in FIGS. 43 to 45 , the longitudinal feed mechanism 244 has a longitudinal feed drive mechanism 251 that drives the tray conveyance mechanism 245 . The longitudinal feed drive 251 has a longitudinal feed spindle 252 . The longitudinal feed main shaft 252 is installed over 9 R of 1st seedling mounting bases, and 9 L of 2nd seedling mounting bases. The vertical feed power which conveys the seedling tray 8 to the vertical feed direction Y4 (referred to as the vertical feed direction) is transmitted to the vertical feed main shaft 252 . In addition, the longitudinal feed drive mechanism 251 has a first longitudinal feed work shaft 253R and a second longitudinal feed work shaft 253L, and the first longitudinal feed work shaft 253R is provided on the first seedling loading platform 9R and is placed on the The seedling tray 8 of the first seedling loading table 9R is conveyed in the longitudinal feeding direction (longitudinal direction) Y4, and the second vertical feeding working shaft 253L is installed on the second seedling loading table 9L and will be placed on the second seedling loading table 9L. The seedling tray 8 conveyed to the vertical feeding direction (longitudinal) Y4. The first longitudinal feed operation shaft 253R and the second longitudinal feed operation shaft 253L are formed in a cylindrical shape, and are fitted on the outer side of the longitudinal feed main shaft 252 so as to be relatively rotatable about their axes.

As shown in FIG. 44, the longitudinal feed main shaft 252 has the rotating body 255 to which longitudinal feeding power was transmitted, and the shaft body 256 fixed to the rotating body 255 and provided over 9 R of 1st seedling mounting bases and 9 L of 2nd seedling mounting bases. The shaft body 256 (longitudinal feed main shaft 252) has the extended shaft part 256a which protrudes from 9 L of 2nd seedling mounting bases to the side opposite to 9 R of 1st seedling mounting bases. The shaft body 256 has the 1st shaft 256A by the 1st seedling mounting base 9R side, and the 2nd shaft 256B by the 2nd seedling mounting base 9L side. The extension shaft part 256a is provided in the 2nd shaft 256B. 256 A of 1st shafts and 256 B of 2nd shafts are connected by the coupling body 257 between 9 R of 1st seedling mounting bases, and 9 L of 2nd seedling mounting bases. The coupling body 257 has a first coupling portion 257A provided so as to be integrally rotatable on the first shaft 256A, and a second coupling portion 257B provided so as to be integrally rotatable to the second shaft 256B. The first coupling portion 257A and the second coupling portion 257B are coupled by flange coupling or the like.

As shown in FIG. 44, the 1st longitudinal feed operation shaft 253R is fitted in the 1st shaft 256A (shaft body 256) so that relative rotation is possible. The first longitudinal feed working shaft 253R has: a first rotating cylinder 259R having a first input portion 258R adjacent to the rotating body 255; a second rotating cylinder 260R, the second rotating cylinder 260R It is arranged on the side opposite to the first rotating drum 259R; and a connecting drum 261R that connects the first rotating drum 259R and the second rotating drum 260R. The drive sprocket 246 in the 1st accommodating part 218 of 9 R of 1st seedling mounting bases is attached to 259 R of 1st rotating cylinders so that integral rotation is possible. The drive sprocket 246 in the 2nd accommodating part 219 of 9 R of 1st seedling mounting bases is attached to 260 R of 2nd rotating cylinders so that integral rotation is possible. Therefore, the drive sprocket 246 of 9 R of 1st seedling mounting bases rotates integrally with 253 R of 1st longitudinal feed operation shafts.

As shown in FIG. 44 , a first longitudinal feeder that can intermittently transmit power from the longitudinal feed main shaft 252 to the first longitudinal feed working shaft 253R is arranged outside (on the right) of the first seedling loading table 9R. Clutch 262R. 262 R of 1st longitudinal feed clutches are provided in the side opposite to 9 L of 2nd seedling mounting bases of 9 R of 1st seedling mounting bases. Thereby, 9 R of 1st seedling mounting bases and 9 L of 2nd seedling mounting bases can be approached. The first longitudinal feed clutch 262R has: a driving engagement portion 263 provided on the rotating body 255; and a clutch main body 264 fitted in the shaft center direction so as to be movable and integrally rotatable. The first input portion 258R; and the driven engagement portion 265 provided on the clutch main body 264 and engaged with and disengaged from the driving engagement portion 263 by moving the clutch main body 264 in the axial direction. By moving the clutch main body 264 toward the rotating body 255 and engaging the driven meshing portion 265 with the driving meshing portion 263, the first longitudinal feed clutch 262R is brought into a connected state, and the first longitudinal feed clutch 262R is moved from the drive spindle 71 to the first longitudinal feed. Power is transmitted to the operation shaft 253R, and the seedling tray 8 of the 1st seedling mounting stand 9R can be vertically fed. In addition, by moving the clutch main body 264 in a direction away from the rotating body 255 to separate the driven meshing portion 265 from the driving meshing portion 263, power is not transmitted from the driving main shaft 71 to the first longitudinal feed working shaft 253R, and the first seedling The seedling tray 8 of the mounting table 9R is in a state in which vertical feeding cannot be performed (the first vertical feeding clutch 262R is in a disconnected state).

The 1st clutch operation mechanism 266R which operates 262 R of 1st longitudinal feed clutches is provided in the right side of 9 R of 1st seedling mounting bases. The first clutch operating mechanism 266R has an operating lever 267 , a clutch fork 268 , and a return spring 269 . The operation lever 267 is pivotally supported by the 1st seedling mounting base 9R so that vertical swing is possible. The clutch fork 268 is engaged with the clutch main body 264 and connected with the operation lever 267 . The return spring 269 urges the operating lever 267 upward. In a state where the operation lever 267 is pulled up, the first longitudinal feed clutch 262R is in a connected state. When the operating lever 267 is pulled down against the spring force of the return spring 269 , the clutch main body 264 moves in a direction in which the driven meshing portion 265 is separated from the driving meshing portion 263 , and the first longitudinal feed clutch 262R is turned off. In addition, the operation lever 267 can be held in a pulled state.

As shown in FIG. 45 , the second vertical feed working shaft 253L is fitted in the second shaft 256B (shaft body 256 ) so that it can be relatively rotatable. The second vertical feed working shaft 253L has a first rotating cylinder 259L on the side (right side) of the first seedling mounting table 9R, a second rotating cylinder 260L disposed on the opposite side to the first rotating cylinder 259L, and a second rotating cylinder 260L that rotates the first rotating cylinder 259L. The connection cylinder 261L which connects the cylinder 259L and the 2nd rotating cylinder 260L. The second rotary cylinder 260L has a second input portion 258L that is relatively rotatably fitted to the extension shaft portion 256a. The driving sprocket 246 in the 1st accommodating part 218 of 9 L of 2nd seedling mounting bases is attached to 259 L of 1st rotating cylinders so that integral rotation is possible. The drive sprocket 246 in the 2nd accommodating part 219 of 9 L of 2nd seedling mounting bases is attached to 260 L of 2nd rotary cylinders so that integral rotation is possible. Therefore, the drive sprocket 246 of 9 L of 2nd seedling mounting bases rotates integrally with 253 L of 2nd longitudinal feed operation shafts.

As shown in Figure 45, a second longitudinal feed mechanism that can intermittently transmit power from the longitudinal feed main shaft 252 to the second longitudinal feed working shaft 253L is disposed outside (on the left) of the second seedling loading table 9L. Clutch 262L. The second longitudinal feed clutch 262L has a rotating portion 271 and a clutch shifter (Clutch Shifter) 272 that engages and disengages from the rotating portion 271 . The rotating part 271 is embedded in the extension shaft part 256a so that it can move in the axial direction and can rotate integrally. Moreover, the rotating part 271 is attached to 9 L of 2nd seedling mounting bases, and moves integrally with 9 L of 2nd seedling mounting bases. The clutch shifter 272 is embedded in the second input portion 258L so as to be movable in the axial direction and integrally rotatable. The clutch shifter 272 engages and disengages from the rotating portion 271 by moving in the axial direction.

The rotating portion 271 has a driving engaging portion 271a, and the clutch shifter 272 has a driven engaging portion 272a engaged with the driving engaging portion 271a. By engaging the driven meshing portion 272a of the clutch shifter 272 with the driving meshing portion 271a, the second longitudinal feed clutch 262L becomes connected, and power is transmitted from the drive main shaft 71 to the second longitudinal feed working shaft 253L, and the second seedling The seedling tray 8 of 9 L of mounting tables can be vertically fed. In addition, by keeping the driven engagement portion 272a of the clutch shifter 272 away from the driving engagement portion 271a, power is not transmitted from the drive main shaft 71 to the second longitudinal feed working shaft 253L, and the seedling tray 8 of the second seedling loading table 9L is not transmitted. A state in which longitudinal feed cannot be performed (the second longitudinal feed clutch 262L is in a disengaged state).

266 L of 2nd clutch operation mechanisms which operate 262 L of 2nd longitudinal feed clutches are provided in the left side of 9 L of 2nd seedling mounting bases. The second clutch operating mechanism 266L has an operating lever 267 , a clutch fork 268 , and a return spring 269 . The operation lever 267 is pivotally supported by 9 L of 2nd seedling mounting bases so that vertical swing is possible. The clutch fork 268 is engaged with the clutch shifter 272 and connected with the operation lever 267 . The return spring 269 urges the operating lever 267 upward. In the state where the operation lever 267 is pulled up, the second longitudinal feed clutch 262L is in the connected state. When the operating lever 267 is pulled down against the spring force of the return spring 269 , the clutch shifter 272 moves in a direction away from the driven meshing portion 272 a from the driving meshing portion 271 a, and the second longitudinal feed clutch 262L is turned off. In addition, the operation lever 267 can be held in a pulled state.

As above, when 1st longitudinal feed clutch 262R and 2nd longitudinal feed clutch 262L are connected, the seedling tray 8 mounted on 9 R of 1st seedling mounting bases and 9 L of 2nd seedling mounting bases can be vertically fed. Thereby, two-row transplantation can be performed. Moreover, when 262 R of 1st longitudinal feed clutches are disengaged, only the seedling tray 8 mounted on 9 L of 2nd seedling mounting bases can be longitudinally fed. Moreover, when 262 L of 2nd vertical feed clutches are disconnected, only the seedling tray 8 mounted on 9 R of 1st seedling mounting bases can be vertically fed. Thereby, single row transplanting is possible.

As shown in FIGS. 44 and 46 , the longitudinal feed mechanism 244 has a longitudinal feed working mechanism 273 that transmits power from the lateral feed mechanism 236 to the longitudinal feed drive mechanism 251 . The vertical feed working mechanism 273 has: a rotary cylinder 275 rotatably supported by a shaft support 274 provided on the right portion of the shaft body 256 ; and a swing lever 277 via a one-way clutch 276 . Combined with the rotating drum 275. When the swing lever 277 rotates in the direction (arrow Y5 direction of FIG. 46 ) that transmits the longitudinal feed power, it rotates together with the rotary drum 275 via the one-way clutch 276 . In addition, when the swing lever 277 rotates in the direction opposite to the arrow Y5 direction, the one-way clutch 276 idles and does not rotate together with the rotary drum 275 .

As shown in FIGS. 44 and 46 , the vertical feed working mechanism 273 has a vertical feed gear 278 and a ratchet arm 279 fixed to the rotary cylinder 275 . As shown in FIG. 44 , the vertical feed gear 278 is bolted to the rotating body 255 and rotates integrally with the rotating body 255 . The ratchet arm 279 is pivotally supported by the 1st seedling mounting base 9R so that swing is possible, and has the engaging part 279a which engages with the engaging tooth 278a of the longitudinal feed gear 278. As shown in FIG. The swing lever 277 has an engaging pin 277 a that engages with the ratchet arm 279 . When the swing lever 277 rotates in the arrow Y5 direction, the rotary cylinder 275 rotates integrally with the vertical feed gear 278 to rotate the rotary body 255 . Thereby, the seedling tray 8 is vertically advanced by the amount of one pitch in the vertical direction of the tank part 8a. At this time, the engaging pin 277a pushes up the ratchet arm 279 . Then, the engaging portion 279a disengages from the engaging teeth 278a of the longitudinal feed gear 278 . After feeding the seedling tray 8 vertically by one pitch in the vertical direction of the tank portion 8a, the swing lever 277 is rotated in the direction opposite to the direction of the arrow Y5 to return. When the swing lever 277 is reset, the engaging pin 277a moves relative to the ratchet arm 279 in a direction to lower the ratchet arm 279 , and the engaging portion 279a engages with the next engaging tooth 278a of the vertical feed gear 278 .

Moreover, two types of vertical feed gear 278 and ratchet arm 279 are provided so that vertical feed amount can be set correspondingly to two types of seedling trays 8 which differ in the number of tank parts 8a and the pitch of tank part 8a. In addition, a selection member that selects one of the two types of ratchet arms 279 and engages with the vertical feed gear 278 is provided.

As shown in FIG. 46 , the swing lever 277 is linked to the working shaft 229 via a linkage mechanism 280 . When the first seedling loading platform 9R is laterally fed by the rotation of the lateral feed shaft 237 and reaches the end of the movement area in the lateral feed direction, the longitudinal feed cam 243 which rotates integrally with the lateral feed shaft 237 and the follower The member 230 abuts, and the working shaft 229 rotates. When the working shaft 229 rotates, the linkage mechanism 280 pulls the swing rod 277 to make the swing rod 277 rotate in the direction of the arrow Y5. When the longitudinal feed cam 243 moves in the body width direction K2 to disengage from the follower 230 , the swing lever 277 is rotated in a direction opposite to the arrow Y5 direction by a return spring (not shown) to return.

As shown in FIG. 38, the seedling run-out sensor 281 which detects the replenishment timing of the seedling tray 8 is provided in the lower part of the seedling mounting base 9. As shown in FIG. In the state where the seedling end sensor 281 is activated, two seedling trays 8 can be replenished to the loading plate 10 .

To the lowest seedling tray 8 (the seedling tray 8 from which the seedling 7 is taken out), loads such as soil and moisture contained in the soil in the pot portion 8a of the seedling tray 8 on the upper side are applied. Furthermore, the lowest seedling tray 8 may be bent by the load of the seedling tray 8 above the lowest seedling tray 8 . Therefore, in this embodiment, the tray pressing mechanism 282 which suppresses the movement of the seedling tray 8 to the longitudinal feed direction Y4 is provided in the seedling mounting table 9. As shown in FIG. By suppressing the movement of the seedling tray 8 in the vertical feed direction Y4 by the tray pressing mechanism 282, it is possible to suppress a load from being applied to the lowest seedling tray 8 and prevent the lowest seedling tray 8 from bending. Therefore, the tray pressing mechanism 282 suppresses the movement of the seedling tray 8 located above the lowest seedling tray 8 to the vertical feed direction Y4. In addition, the tray pressing mechanism 282 is arranged on the rear side in the vertical feeding direction Y4 with respect to the vertical feeding mechanism 244 . Accordingly, the tray pressing mechanism 282 can be assembled satisfactorily without overlapping with the longitudinal feeding mechanism 244 .

In this embodiment, a plurality of tray pressing mechanisms 282 are provided. The plurality of tray pressing mechanisms 282 include a first tray pressing mechanism 282A and a second tray pressing mechanism 282B for suppressing the movement of the seedling tray 8 above the lowest seedling tray 8 in the longitudinal feed direction, The second tray pressing mechanism 282B suppresses movement in the vertical feed direction Y4 of the uppermost seedling tray 8 . In addition, each tray pressing mechanism 282 includes a first pressing mechanism 283 and a second pressing mechanism 284, the first pressing mechanism 283 is arranged on one side of the seedling tray 8, and the second pressing mechanism 284 is arranged on the seedling tray 8. side of the other side.

Since the first tray pressing mechanism 282A and the second tray pressing mechanism 282B have the same structure, they will be described together. In addition, since the 1st pressing mechanism 283 and the 2nd pressing mechanism 284 are formed with the same structure except a part of structure, about the common part, the 1st pressing mechanism 283 and the 2nd pressing mechanism 284 are demonstrated together.

FIG. 47 shows a top view of the second pressing mechanism 284 . FIG. 48 shows a side view of the second pressing mechanism 284 . The front (front) of the vertical feed direction Y4 means the arrow Y4 direction in FIG. 47 , and the rear (rear part) of the vertical feed direction Y4 means the direction opposite to the arrow Y4 direction.

As shown in FIGS. 47 and 48 , the second pressing mechanism 284 (the first pressing mechanism 283 ) has a base member 286 , a pivot 287 , a rotating cylinder 288 , a biasing member 289 , a pressing member 290 , and a restriction lever 291 .

The base member 286 is attached to the seedling mounting base 9 (mounting plate 10). Specifically, the base member 286 is formed of a sheet material, and has a mounting wall 286a mounted on the end side of the mounting plate 10 in the body width direction K2 by bolts or the like, and a standing wall 286b. The rising wall 286b protrudes in the normal line direction of the mounting plate 10 from the end part (the seedling tray 8 side end part) of the attachment wall 286a. The pivot 287 is disposed at the rear (upper) portion of the base member 286 in the longitudinal feed direction Y4, and is fixed to the mounting wall 286a so as to protrude in the normal direction of the mounting wall 286a. The rotary cylinder 288 is embedded (supported) on the outside of the pivot shaft 287 so as to be rotatable about its axis.

The urging member 289 is formed of a tension coil spring. One end of the urging member 289 is engaged with a spring hook member 292 fixed to the rotary cylinder 288 . The spring hook member 292 protrudes from the rotary cylinder 288 to the side opposite to the seedling tray 8 . In other words, the spring hook member 292 protrudes from the rotary cylinder 288 in a direction away from the center in the body width direction K2 of the seedling mounting table 9 in the body width direction K2. The spring hooking member 292 is provided with a plurality of spring hooking holes 293 for hooking one end of the urging member 289 so that the locking position of the one end of the urging member 289 can be changed. Thus, the acting force can be changed. The other end side of the spring hook member 292 is locked to a support plate 294 erected on the base member 286 . The support plate 294 is provided at the front (lower) of the base member 286 in the longitudinal feed direction Y4.

As shown in FIGS. 49 and 50 , the spring hook member 292A of the first pressing mechanism 283 is fixed to the rotary cylinder 288 on the base side of the pivot shaft 287 . As shown in FIGS. 49 and 51 , the spring hook member 292B of the second pressing mechanism 284 is fixed to the rotary cylinder 288 on the front end side of the pivot shaft 287 . Therefore, the spring hook member 292A is arranged on the lower side of the spring hook member 292B. Thereby, 9 R of 1st seedling mounting bases and 9 L of 2nd seedling mounting bases can be approached.

As shown in FIGS. 48 to 51 , the support plate 294 has two spring hook holes (locking portions) 295A, 295B on the upper and lower sides. When one end side of the urging member 289 is hooked to the spring hooking member 292A of the first pressing mechanism 283 , the other end side of the urging member 289 is hooked to the lower spring hooking hole 295A. In addition, when one end side of the urging member 289 is hooked to the spring hooking member 292B of the second pressing mechanism 284 , the other end side of the urging member 289 is hooked to the upper spring hooking hole 295B.

As shown in FIGS. 47 and 48 , the pressing member 290 has a fixed portion 290a on the proximal side, an abutment portion 290b and a connecting portion 290c on the middle portion, and a distal portion 290d on the distal side. The fixing part 290 a is fixed to the rotating cylinder 288 . The abutting portion 290b is formed to be apart from the fixing portion 290a toward the front side in the longitudinal feed direction Y4. The contact part 290b is linearly formed, and it contacts with the seedling tray 8. As shown in FIG. In detail, the contact part 290b contacts the side surfaces of the plurality of tank parts 8a. That is, the pressing member 290 abuts on the side surface of the seedling tray 8 . The pressing member 290 may be brought into contact with the front (top wall 8 b ) of the seedling tray 8 , but in this case, the leaves of the seedlings 7 may be sandwiched by the pressing member 290 . By bringing the pressing member 290 into contact with the side surface of the seedling tray 8 , it is possible to prevent the leaves of the seedlings 7 from being pinched by the pressing member 290 .

As shown in FIG. 47, the connection part 290c connects the fixed part 290a and the contact part 290b. The connecting portion 290c is formed in an inclined shape shifting toward the seedling tray 8 (direction toward the center in the body width direction K2 of the seedling loading table 9 ) as it moves from the fixing portion 290a toward the vertical feed direction Y4. Thereby, the seedling tray 8 can be favorably guided to the contact part 290b.

The front end side part 290d is formed in an inclined shape with respect to the contact part 290b. Specifically, the front end side portion 290d is formed in a direction away from the seedling tray 8 (from the body width direction K2 of the seedling loading table 9) as it moves from the end portion of the front end side of the contact portion 290b toward the longitudinal feed direction Y4. The center is inclined along the body width direction (K2 away from the direction) transfer.

The urging force of the urging member 289 is urging in the direction which makes the pressing member 290 approach the seedling tray 8 around the pivot 287. Thereby, the pressing member 290 is urged|biased by the urging member 289, and the seedling tray 8 is pressed. By making the pressing member 290 press the seedling tray 8, the movement of the seedling tray 8 in the vertical feed direction Y4 can be suppressed. The seedling tray 8 suppresses the movement in the longitudinal feed direction Y4 by the frictional force between the pressing member 290 and the side of the seedling tray 8, although the frictional force (the force of the force applying member 289) will restrain the longitudinal feeding of the seedling tray 8. The movement in the direction Y4 is set to a force that does not stop the movement in the longitudinal feed direction Y4 caused by the dead weight of the seedling tray 8 having the bed soil containing moisture.

As shown in FIGS. 47 and 48 , the restriction rod 291 is fixed to the base member 286 . The restriction lever 291 has a first restriction portion 296 . The first restricting portion 296 is located in the middle of the longitudinal feed direction Y4 of the restricting rod 291 . The 1st restrict|limiting part 296 is formed in linear form, it is located in the upper surface side of the side edge part of the seedling tray 8, and restricts the upward movement of the seedling tray 8. As shown in FIG. The first restricting portion 296 is fixed on the upper portion of the support plate 294 .

The rear portion 297 of the restricting rod 291 has a first portion 297a and a second portion 297b along the direction from the rear end in the longitudinal feed direction Y4 of the first restricting portion 296 toward the rear in the longitudinal feed direction Y4. The second portion 297b protrudes downward from the rear end of the first portion 297a in the longitudinal feed direction Y4 and is fixed to the mounting wall 286a of the base member 286. .

The limiting lever 291 has a second limiting portion 298 that limits the rotation of the pressing member 290 around the pivot 287 when the pressing member 290 is not pressing the seedling tray 8 . The second restricting portion 298 is constituted by the front portion of the restricting rod 291 . The second restricting portion 298 has a first portion 298a and a second portion 298b, and the first portion 298a moves toward the seedling tray 8 from the front end of the first restricting portion 296 in the longitudinal feed direction Y4 toward the longitudinal feed direction Y4. The oblique direction extended from the moving away direction, and the second portion 298 b protrudes downward from the first portion 298 a and can be abutted against by the front end portion 290 d of the pressing member 290 .

When the seedling tray 8 passed the pressing member 290, the pressing member 290 rotated around the pivot 287 to the central side of the body width direction K2 of the loading plate 10. 298 abuts against, so the rotation of the pressing member 290 can be restricted. Thereby, the pressing member 290 enters into the center side of the mounting plate 10, and it can suppress that it becomes an obstacle to the replenishment of the seedling tray 8. As shown in FIG. Moreover, when supplying the seedling tray 8, the labor of expanding the space|interval of the pressing member 290 which opposes in the body width direction K2 is also unnecessary.

The above-mentioned transplanting machine 1 of the present embodiment is provided with: the loading plate 10 for placing at least one seedling tray 8 in a state in which the at least one seedling tray 8 is tilted downward; the longitudinal feeding mechanism 244 , the longitudinal feeding mechanism 244 longitudinally feeds the seedling tray 8 downward along the loading plate 10; The pressing mechanism 282 has an urging member 289 and a pressing member 290 which is urged by the urging member 289 to press the seedling tray 8 .

According to this structure, the movement of the seedling tray 8 in the direction Y4 of vertical feed can be suppressed by the pressing member 290 which presses the seedling tray 8 by the urging member 289 urging|biasing. Thereby, the curvature of the seedling tray 8 can be suppressed.

Moreover, the pressing member 290 presses the side surface of the seedling tray 8 .

According to this structure, by pressing the side surface of the seedling tray 8, it can prevent that the seedling 7 is pinched by the pressing member 290. As shown in FIG.

In addition, the tray pressing mechanism 282 is arranged on the rear side in the vertical feeding direction Y4 with respect to the vertical feeding mechanism 244 .

According to this configuration, the tray pressing mechanism 282 can be attached satisfactorily without overlapping the vertical feeding mechanism 244 .

In addition, the tray pressing mechanism 282 has a base member 286 attached to the mounting plate 10, a pivot 287 fixed to the base member 286, and a rotating cylinder 288 rotatably supported on the pivot 287, and the pressing member 290 has a rotating shaft fixed to the rotating shaft. The fixing part 290a of the cylinder 288, the contact part 290b which contacts the seedling tray 8, and the connection part 290c which connects the fixing part 290a and the contact part 290b.

According to this structure, the pressing member 290 can be attached to the mounting plate 10 in the state assembled to the base member 286, and assembling can be facilitated.

In addition, the pivot shaft 287 and the rotating cylinder 288 are disposed on the rear side of the pressing member 290 in the direction Y4 of the vertical feed, and the connecting portion 290c is formed so as to approach the seedling tray 8 as it moves from the fixed portion 290a toward the direction Y4 of the vertical feed. The direction of the shift is inclined.

According to this structure, the seedling tray 8 can be smoothly guided to the contact part 290b.

In addition, the tray pressing mechanism 282 has a restricting rod 291 fixed to the base member 286, and the restricting rod 291 has a first restricting portion 296 and a second restricting portion 298, and the first restricting portion 296 is located at the side edge of the seedling tray 8. The upper surface side restricts the upward movement of the seedling tray 8 , and the second restricting portion 298 restricts the rotation of the pressing member 290 around the pivot 287 when the pressing member 290 is not pressing the seedling tray 8 .

According to this structure, the lift of the seedling tray 8 can be prevented by the 1st restrict|limiting part 296. As shown in FIG. In addition, when the seedling tray 8 passes the pressing member 290 , the second restricting portion 298 can restrict the swinging of the pressing member 290 to the center portion side in the body width direction K2 of the mounting plate 10 . Thereby, it can suppress that the pressing member 290 becomes an obstacle to the replenishment of the seedling tray 8 .

In addition, the tray pressing mechanism 282 has a supporting plate 294 erected on the base member 286 and supporting the restricting rod 291, and a spring hooking member 292 fixed to the rotating cylinder 288, and the biasing member 289 is locked to the spring hooking member by one end. 292 is formed as a tension coil spring, and the support plate 294 has locking portions 295A and 295B for locking the other end of the tension coil spring.

According to this configuration, it is possible to attach the restriction lever 291 and the urging member 289 to the base member 286 to the mounting plate 10 in a state where they are assembled, thereby facilitating assembly.

In addition, a seedling taking-out device 11 is provided to take out the seedlings 7 from the seedling tray 8, and the loading plate 10 can place a plurality of seedling trays 8 arranged up and down along the inclined direction. The lowest seedling tray 8 among the plurality of seedling trays 8 takes out the seedlings 7, and the tray pressing mechanism 282 restrains the seedling tray 8 on the upper side of the lowermost seedling tray 8 from moving in the direction Y4 of the vertical feed.

According to this configuration, it is possible to suppress the load from the seedling tray 8 above the seedling tray 8 from being applied to the seedling tray 8 from which the seedling 7 is taken out, and it is possible to suppress the bending of the seedling tray 8 from which the seedling 7 is taken out.

In addition, the tray pressing mechanism 282 has a first pressing mechanism 283 and a second pressing mechanism 284 including a biasing member 289 and a pressing member 290. The first pressing mechanism 283 is disposed on one side of the seedling tray 8, and the second pressing mechanism 284 It is arrange|positioned at the other side surface side of the seedling tray 8.

According to this structure, by pressing the seedling tray 8 from both sides of the body width direction K2, the movement in the direction Y4 of the vertical feed of the seedling tray 8 can be suppressed effectively.

In addition, the transplanting machine 1 of the present embodiment includes a transplanting operation machine 4 having a plurality of transplanting bodies 12 that reciprocate up and down and rush into the field 6 when descending to transplant the seedlings 7 Traveling body 5, described traveling body 5 is arranged in the front of transplanting working machine 4; Working machine assembly device 123, described working machine assembling device 123 can transplant working machine 4 around the rolling axis that extends along body front-rear direction K1 The center X1 is swingably assembled on the running body 5; and the rolling mechanism 135, which makes the transplanting operation machine 4 swing around the rolling axis X1, and the plurality of transplanting bodies 12 includes the first one arranged in line in the body width direction K2. One transplanting body 12R and the second transplanting body 12L, in order to make the first height H1 of the first transplanting body 12R relative to the transplanting surface of the field 6 and the second height of the second transplanting body 12L relative to the transplanting surface H2 becomes a predetermined height, and the rolling mechanism 135 swings the transplanting working machine 4 around the rolling axis X1.

According to this configuration, the height of the first transplanting body 12R with respect to the transplanting surface and the height of the second transplanting body 12L with respect to the transplanting surface can be made predetermined by swinging the transplanting machine 4 around the rolling axis X1. the height of. Thereby, the transplanting depth of the seedling 7 transplanted by the 1st transplanting body 12R and the transplanting depth of the seedling 7 transplanted by the 2nd transplanting body 12L can be matched.

In addition, the control device 131 that controls the rolling mechanism 135 is provided, and when the height difference between the first height H1 and the second height H2 at the time of transplanting the seedlings 7 is greater than or equal to a predetermined value, the control device 131 causes the transplanting machine 4 to rotate around the rolling axis. The heart X1 swings in a direction that reduces the height difference.

According to this structure, the sensitive operation|movement of the transplanting work machine 4 can be suppressed, and the rolling control which makes the transplanting work machine 4 swing around the rolling axis X1 can be performed stably.

In addition, the transplanting operation machine 4 has a first sensing roller 126R and a second sensing roller 126L. The first sensing roller 126R is arranged in front of the first transplanting body 12R for detecting The height of the transplanting surface (the first transplanting surface 144R), the second sensing roller 126L is configured in front of the second transplanting body 12L, and is used to detect the transplanting surface (second transplanting surface) corresponding to the second transplanting body 12L. Based on the detection value detected by the first sensing roller 126R and the second sensing roller 126L for the height of the transplanting surface 144L), the control device 131 swings the transplanting machine 4 around the rolling axis X1 in a direction to reduce the height difference.

According to this structure, the height of the transplanting surface corresponding to the first transplanting body 12R is detected by using the first sensing roller 126R, and the height of the transplanting surface corresponding to the second transplanting body 12L is detected by the second sensing roller 126L, Thereby, the 1st height H1 and the 2nd height H2 can be detected easily.

In addition, the working machine mounting device 123 has the working machine elevating mechanism 125 for raising and lowering the transplanting working machine 4, and the control device 131 is based on the position of the field 6 detected by one of the first sensing roller 126R and the second sensing roller 126L. The transplanting work machine 4 is raised and lowered by unevenness, and the height difference is calculated from the height of the other sensing roller with respect to the one sensing roller.

According to this structure, by raising and lowering the transplanting work machine 4 based on the unevenness|corrugation of the field 6 detected by one sensing roller, the up-down control of the transplanting work machine 4 can be performed stably. Moreover, by calculating the height difference of the 1st height H1 and the 2nd height H2 based on one sensing roller, the rolling control which makes the transplanting work machine 4 rock|fluctuate around the rolling axis X1 can be performed stably.

In addition, when the height difference is smaller than a predetermined value, the height difference is absorbed by the free swing of the transplanting work machine 4 around the rolling axis X1, and when the height difference is greater than a predetermined value, the control device 131 activates the rolling mechanism 135 .

According to this configuration, rolling control for swinging the transplanting work machine 4 around the rolling axis X1 can be stably performed.

In addition, the transplanting work machine 4 includes: a first roller bracket 146R that supports the first sensing roller 126R so as to be able to swing up and down; a first biasing spring 147R that supports Force the first roller bracket 146R downward; the first sensor mechanism 156R, which detects the swing amount of the first roller bracket 146R; the second roller bracket 146L, which 146L supports the second sensing roller 126L so as to be able to swing up and down; the second biasing spring 147L that biases the second roller bracket 146L downward; and the second sensor mechanism 156L that The sensor mechanism 156L detects the swing amount of the second roller bracket 146L, and the first sensor mechanism 156R has a first height detection sensor 157R and a first detection arm 159R whose one end side is in contact with the first height detection sensor 157R. The detection part is connected and has the abutting part 161 abutted on the first roller bracket 146R on the other end side, and swings in conjunction with the first roller bracket 146R, and the second sensor mechanism 156L has a second height detection sensor 157L and a second detection arm 159L, one end side of the second detection arm 159L is connected to the detection piece of the second height detection sensor 157L, and the other end side has an abutting piece abutted against the second roller bracket 146L 161, and swings in conjunction with the second roller bracket 146L.

According to this structure, the mechanism which detects the height of a transplant surface can be comprised easily.

In addition, the rolling mechanism 135 has: a rolling motor 136 installed on the working machine assembly device 123; a rolling roller 137 which is rotationally driven by the rolling motor 136; and a cable body 138 which is Wound on the rolling roller 137, one end is connected to one side in the body width direction K2 of the transplanting machine 4, and the other end is connected to the other side in the body width direction K2 of the transplanting machine 4.

According to this structure, the rolling mechanism 135 which swings the transplanting working machine 4 around the rolling axis X1 can be comprised simply.

In addition, the transplant machine 1 of this embodiment includes: a transplant frame 36; a swing frame 164 supported so as to be able to swing up and down relative to the transplant frame 36; Frame 164, and seedling 7 is transplanted in field 6; Roller frame 168, described roller frame 168 is supported as can swing up and down by swing frame 164; And be grounded with field 6; And transplanting depth adjustment mechanism 172, described transplanting depth adjustment mechanism 172 can change the interval between fixed roller frame 168 and swing frame 164, and by changing interval, thereby regulate the transplanting depth of seedling 7, Transplant depth adjustment mechanism 172 has: mechanism frame 173, described mechanism frame 173 is arranged on swing frame 164; Adjustment motor 174, described adjustment motor 174 is installed in mechanism frame 173; Drive mechanism 175, described drive mechanism 175 is controlled by adjustment motor 174 ; and a link member 176 that connects the drive mechanism 175 to the roller frame 168 and moves up and down in conjunction with the drive of the drive mechanism 175 .

According to this structure, the transplanting depth of the seedling 7 can be adjusted by driving the drive mechanism 175 by the adjustment motor 174, and moving the link member 176 up and down. Thereby, adjustment of the transplanting depth of the seedling 7 can be performed easily.

In addition, the drive mechanism 175 has: a first gear 177 driven by the adjustment motor 174; The link member 176 moves up and down.

According to this structure, the drive mechanism 175 can be comprised with a simple structure.

In addition, the first gear 177 is formed of a pinion, and the second gear 178 is formed of a sector gear having a connection portion 178 b to which the link member 176 is connected.

According to this structure, the drive mechanism 175 can be configured more simply.

In addition, it is equipped with: a working machine lifting mechanism 125 that lifts and lowers the transplant frame 36; The change of the interval 164 moves the transplant frame 36 up and down in a direction to return the relative position of the swing frame 164 to the transplant frame 36 .

According to this configuration, the swing frame 164 can be returned to the center of the swing range along with the adjustment of the transplant depth.

Moreover, the transplant depth adjustment mechanism 172 has the detection part 182 which detects the change amount of the space|interval of the roller frame 168 and the swing frame 164, and feeds it back to the control apparatus 131.

According to this configuration, the amount of change in the distance between roller frame 168 and swing frame 164 is detected by detector 182 and fed back to control device 131 , whereby swing frame 164 can be accurately returned to the center of the swing range.

In addition, the drive mechanism 175 has: a first gear 177 driven by the adjustment motor 174; The link member 176 moves up and down, and the detection unit 182 is a potentiometer that detects the amount of rotation of the second gear 178 .

According to this configuration, it is possible to easily construct a mechanism for detecting the amount of change in the distance between the roller frame 168 and the swing frame 164 .

In addition, the mechanism frame 173 is vertically installed on the swing frame 164, the adjustment motor 174 is installed on the upper part of the mechanism frame 173, the pinion gear is rotatably installed on the upper part of the mechanism frame 173, and the lower part of the sector gear is pivotally supported on the mechanism frame 173. The upper portion has a gear portion 178a meshing with the pinion.

According to this structure, the structure of the drive mechanism 175 can be constructed simply.

In addition, the transplanting machine 1 of the present embodiment is provided with: a transplanting operation machine 4 having at least one transplanting body 12 for transplanting the seedlings 7 in the field 6 and a pair of transplanting bodies 12 for transplanting the seedlings 7. The transplanting depth adjustment mechanism 172 for regulating the transplanting depth of the seedlings 7; the running body 5, the driving body 5 is assembled with the transplanting operation machine 4 and travels; the driver's seat 3, the driving body 3 is carried on the running body 5; Device 131, the control device 131 controls the transplanting depth adjustment mechanism 172; the operation part 127, the operation part 127 is arranged near the driver's seat 3, and sends an operation signal to the control device 131 to operate the transplanting depth adjustment mechanism 172.

According to this structure, since the operation part 127 provided in the vicinity of the driver's seat 3 can operate the transplant depth adjustment mechanism 172, adjustment of the transplant depth can be performed easily.

Moreover, the operation part 127 has the transplant depth adjustment part 190 which operates the transplant depth adjustment mechanism 172. As shown in FIG.

Moreover, the transplant depth adjustment part 190 has the rotation operation part (operation dial 191) which transmits an operation signal to the control apparatus 131 by rotation, and the mark 192 which shows the rotation position of the rotation operation part (operation dial 191).

According to this structure, adjustment of a transplant depth can be performed easily by rotation of a rotary operation part (operation dial 191). In addition, since there is an indicator 192 showing the rotational position of the rotational operation unit (operation dial 191 ), the operation of the rotational operation unit (operation dial 191 ) can be easily performed.

In addition, the rotary operation part (operation dial 191 ) transmits a first operation signal to the control device 131 by rotating one of them, and transmits a second operation signal to the control device 131 by rotating the other. The signal that the transplanting depth adjustment mechanism 172 works in the direction that makes the transplanting depth of the seedlings 7 become deeper, and the second operation signal is to make the transplanting depth adjustment mechanism 172 work in the direction that makes the transplanting depth of the seedlings 7 shallower. Signal, the transplanting depth adjustment part 190 has the depth display part 193 which shows the operation direction of the rotation operation part (operation dial 191).

According to this configuration, it is possible to more easily perform the operation of rotating the operation portion (operation dial 191 ).

In addition, it is equipped with: a work machine assembly device 123, which can swing around the rolling axis X1 extending along the front and rear direction K1 of the machine body, and assemble the transplanting work machine 4 to the running body 5; and a rolling mechanism 135, so that The rolling mechanism 135 is controlled by the control device 131, so that the transplanting operation machine 4 swings around the rolling axis X1. There are multiple transplanting bodies 12, and the multiple transplanting bodies 12 include the rolling axis X1 in the machine body width direction K2. The first transplanting body 12R and the second transplanting body 12L arranged in an upper row, the operating part 127 has an angle adjustment part 194 for operating the rolling mechanism 135, and the angle adjustment part 194 sends a first lowering signal or a second lowering signal to the control device 131. , the first descending signal is a signal that causes the first transplanting body 12R of the transplanting operation machine 4 to descend sideways on the roll axis X1, and the second descending signal is to cause the second transplanting body 12L to roll sideways The signal that the axis X1 is falling.

According to this structure, the transplant depth of 12 R of 1st transplant bodies and 12 L of 2nd transplant bodies can be finely adjusted. Specifically, when the transplanting depths of the seedlings 7 transplanted by the first transplanting body 12R and the seedlings 7 transplanted by the second transplanting body 12L are different with respect to a ridge having the same height, by using the angle adjustment The part 194 makes the transplanting operation machine 4 swing and adjust around the rolling axis X1, so that the transplanting depth can be finely adjusted.

Moreover, the angle adjustment part 194 has the 1st switch 195 which transmits the 1st downward signal to the control apparatus 131, and the 2nd switch 196 which transmits the 2nd downward signal to the control apparatus 131.

According to this configuration, the operation of lowering the side where the first transplanting body 12R is arranged and the operation of lowering the side where the second transplanting body 12L is arranged can be clarified.

In addition, equipped with a working machine lifting mechanism 125 controlled by the control device 131, the transplanting working machine 4 has: a transplanting frame 36, which is lifted by the working machine lifting mechanism 125; a sensing roller 126, and the sensing roller 126 supports The transplanting frame 36 moves up and down following the transplanting surface of the field 6 to detect the height of the transplanting surface; the swing frame 164 is equipped with the transplanting body 12 and is supported by the transplanting frame in a swingable up and down manner. 36; and the soil covering wheel 62, the soil covering wheel 62 is grounded and supports the swing frame 164, the operation part 127 has a transplanted part height adjustment part 197, and the transplanted part height adjustment part 197 corrects the sinking amount of the sensing roller 126 and the soil covering wheel 62 Difference.

According to this configuration, it is possible to correct the difference in sinking amount of the sensing roller 126 and the covering wheel 62 .

In addition, the graft height adjustment unit 197 has a lift switch 198 for sending a correction value for lifting the transplant frame 36 to the control device 131 and a lower switch 199 for sending a correction value to the control device 131 . Transplant frame 36 drop correction value.

According to this configuration, by raising or lowering the transplanting frame 36 , it is possible to correct the sinking amount of the sensing roller 126 and the covering wheel 62 .

In addition, the transplanter 1 of the present embodiment is provided with: a main frame 37; a first seedling mounting table 9R and a second seedling mounting table 9L which are positioned in the body width direction K2 Arranged in a row and supported by the main frame 37 so as to be able to move along the body width direction K2; the connecting member 235 that connects the first seedling mounting table 9R and the second seedling mounting table 9L; the first transplanting unit 63R The first transplanting unit 63R has a first seedling taking-out device 11R for taking out the seedlings 7 from the seedling tray 8 placed on the first seedling loading table 9R, and transplants the seedlings 7 taken out by the first seedling taking-out device 11R to the field. 6, the first transplanting device 35R; the second transplanting unit 63L, the second transplanting unit 63L has a second seedling taking-out device 11L for taking out the seedling 7 from the seedling tray 8 placed on the second seedling loading platform 9L; The seedlings 7 taken out by the second seedling taking-out device 11L are transplanted to the second transplanting device 35L of the field 6; and the lateral feed mechanism 236 is installed on the first transplanting unit 63R and makes the first seedling The setting table 9R is laterally fed along the body width direction K2, and the first transplanting unit 63R and the second transplanting unit 63L are supported on the main frame 37 in a manner capable of independently adjusting their positions in the body width direction K2. The first seedling mounting table 9R It is connected to the first transplanting unit 63R via the lateral feed mechanism 236 and is integrally position-adjustable in the body width direction K2 .

According to this configuration, the first transplanting unit 63R and the second transplanting unit 63L are independently positionally adjusted in the body width direction K2, and the first seedling mounting table 9R and the second seedling mounting table 9L are adjusted according to the position adjustment of the first transplanting unit 63R. move. After the position adjustment of 63 R of 1st transplanting units, 9 L of 2nd seedling mounting bases perform position adjustment in the body width direction K2 with respect to the connection member 235. FIG. Thereby, without using a complicated interlocking mechanism, the interval adjustment of 63 R of 1st transplanting units and 9 R of 1st seedling mounting bases, and 63 L of 2nd transplanting units and 9 L of 2nd seedling mounting bases can be performed.

In addition, a drive spindle 71 is provided, and the drive spindle 71 is arranged at the front of the first transplant unit 63R and the second transplant unit 63L so as to extend along the body width direction K2, and is supported by the main frame 37, and is transmitted to the lateral feed mechanism 236. Power, the first transplanting unit 63R has the first unit frame 38R that the first seedling taking-out device 11R and the first transplanting device 35R are installed, and the second transplanting unit 63L has the second seedling taking-out device 11L and the second transplanting device The 35L second unit frame 38L, the first unit frame 38R, and the second unit frame 38L are supported by the drive spindle 71 so as to be movable in the body width direction K2.

According to this configuration, the structure can be simplified by using the drive spindle 71 as a supporting member of the first unit frame 38R and the second unit frame 38L.

In addition, the main frame 37 has a first connecting plate 61R arranged behind the first unit frame 38R and a second connecting plate 61L arranged behind the second unit frame 38L, the first unit frame 38R has a first mounting plate 76R, The first mounting plate 76R is mounted on the first connecting plate 61R so as to be positionally adjustable along the body width direction K2, and the second unit frame 38L has a second mounting plate 76L that can be positioned along the body width direction K2. It is attached to the second connecting plate 61L for position adjustment.

According to this structure, the space|interval adjustment structure of 63 R of 1st transplantation units, 9 R of 1st seedling mounting bases, and 63 L of 2nd transplanting units, and 9 L of 2nd seedling mounting bases can be simplified.

Moreover, the main frame 37 has the rail member (1st rail 56, the 2nd rail 58) extended along the body width direction K2, and the 1st seedling mounting stand 9R has the 1st roller supported by the rail member so that movement along the body width direction K2 is possible. 234R and the first holder member 221R on which the first roller 234R is installed, and the second seedling loading table 9L has a second roller 234L supported on the rail member movably along the body width direction K2 and a second roller 234L on which the second roller 234L is installed. The holder member 221L, the first holder member 221R has a first support plate 227R attached to the connection member 235 , and the second holder member 221L has a second support plate 227L attached to the connection member 235 .

According to this structure, the space|interval adjustment structure of 1st seedling mounting stand 9R and 2nd seedling mounting stand 9L can be simplified.

Moreover, the transplanter 1 of this embodiment is provided with the 1st seedling mounting base 9R and the 2nd seedling mounting base 9L which mount the seedling tray 8, and the plant which vertically conveys and mounts on the 1st seedling mounting base 9R and the 2nd seedling mounting base 9L. The vertical feed mechanism 244 of the seedling tray 8 is provided with a vertical feed main shaft 252 that is installed over the first seedling mounting table 9R and the second seedling mounting table 9L, and is transmitted. The longitudinal feed power of the seedling tray 8 is conveyed in the longitudinal direction; the first longitudinal feed working shaft 253R is arranged on the first seedling loading table 9R, and is transported and placed on the first seedlings in the longitudinal direction. The seedling tray 8 of the loading table 9R; the second longitudinal feed work shaft 253L, the second vertical feed work shaft 253L is arranged on the second seedling loading table 9L, and is transported vertically on the second seedling loading table 9L The seedling tray 8; the first longitudinal feed clutch 262R, the first longitudinal feed clutch 262R can intermittently transmit power from the longitudinal feed main shaft 252 to the first longitudinal feed working shaft 253R; and the second longitudinal feed clutch 262L, the second longitudinal feed clutch 262L can intermittently transmit power from the longitudinal feed main shaft 252 to the second longitudinal feed working shaft 253L.

According to this structure, since the first longitudinal feed clutch 262R capable of intermittently transmitting power from the longitudinal feed main shaft 252 to the first longitudinal feed working shaft 253R and the power transmission from the longitudinal feed main shaft 252 to the second longitudinal feed shaft 253R are provided, The second longitudinal feed clutch 262L that feeds the working shaft 253L to transmit power can therefore only be used for the seedling tray 8 placed on the first seedling loading platform 9R and the seedling tray 8 placed on the second seedling loading platform 9L. Arbitrary seedling tray 8 carries out longitudinal feeding drive.

In addition, the longitudinal feed main shaft 252 has: a rotating body 255 to which the longitudinal feeding power is transmitted; The second seedling loading platform 9L is provided, the first longitudinal feed working shaft 253R has a first input part 258R that is embedded in the shaft body 256 and is adjacent to the rotating body 255 in a relatively rotatable manner, and the first longitudinal feed clutch 262R has a : the driving engagement part 263, the driving engagement part 263 is provided on the rotating body 255; the clutch main body 264, the clutch main body 264 is embedded in the first input part 258R so as to be movable in the axial direction and integrally rotatable; and the driven The engaging portion 265 , the driven engaging portion 265 is provided on the clutch main body 264 , and is engaged and disengaged from the driving engaging portion 263 by moving the clutch main body 264 in the axial direction.

According to this structure, the longitudinal feed power which longitudinally feeds the seedling tray 8 mounted on 9 R of 1st seedling mounting bases can be interrupted, and can be set as the structure which can transmit power to 9 L of 2nd seedling mounting bases.

Moreover, the shaft body 256 has the 1st shaft 256A by the 1st seedling mounting base 9R side, the 2nd shaft 256B by the 2nd seedling mounting base 9L side, and the coupling body 257 which coupled the 1st shaft 256A and the 2nd shaft 256B.

According to this configuration, it is possible to facilitate assembly of the longitudinal feed spindle 252 .

In addition, the second seedling loading table 9L and the first seedling loading table 9R are arranged side by side in the body width direction K2, and the distance between the first seedling loading table 9R can be adjusted in the body width direction K2. The longitudinal feed spindle 252 has The extended shaft portion 256a protrudes from the second seedling mounting table 9L to the side opposite to the first seedling mounting table 9R, and the second vertical feed working shaft 253L has a second input that is relatively rotatably embedded in the extending shaft portion 256a. part 258L, the second longitudinal feed clutch 262L has: a rotating part 271, which is embedded in the extension shaft part 256a so as to be movable in the axial direction and integrally rotatable, and is installed on the second seedling mounting table 9L; and a clutch shifter 272 , which is embedded in the second input portion 258L so as to be movable in the axial direction and integrally rotatable, and engages and disengages from the rotating portion 271 by moving in the axial direction. .

According to this structure, the second longitudinal feed clutch 262L can be formed so that the longitudinal feed power for longitudinally feeding the seedling tray 8 placed on the second seedling loading table 9L can be interrupted and the second feeding table 9L can be allowed to move forward. The structure which adjusts the interval with respect to 1st seedling mounting table 9R.

Moreover, 262 R of 1st longitudinal feed clutches are provided in the side opposite to 9 L of 2nd seedling mounting bases of 9 R of 1st seedling mounting bases.

According to this structure, 9 R of 1st seedling mounting bases and 9 L of 2nd seedling mounting bases can be approached.

In addition, the transplanting machine 1 of the present embodiment includes: a transplanting operation machine 4 that transplants the seedlings 7 in the field 6; and the driver's seat 3, the driver's seat 3 is mounted on the running body 5, and the transplanting operation machine 4 has: a loading plate 10, and the seedling tray 8 is placed on the seedling tray 8 in a state where the seedling tray 8 is inclined downward. Carry out loading; Longitudinal feeding mechanism 244, described longitudinal feeding mechanism 244 makes seedling tray 8 vertically feed downwards along loading plate 10; The seedling tray 8 takes out the seedlings 7; the reverse guide 13, the reverse guide 13 reverses the seedling tray 8 after the seedlings 7 are taken out by the seedling taking-out device 11 and guides it to the back side of the loading plate 10 side; and an empty tray guide 14, the empty tray guide 14 guides the seedling tray 8 reversed by the reversing guide 13 to the back upper part of the loading plate 10, and the traveling body 5 has an empty tray receiving portion 15, The said empty tray receiving part 15 is arrange|positioned between the driver's seat 3 and the empty tray guide 14, and receives the empty seedling tray 8 sent out from the empty tray guide 14. As shown in FIG.

According to this structure, since the empty seedling tray 8 sent out from the empty tray guide 14 can be received by the empty tray receiving part 15 provided between the driver's seat 3 and the empty tray guide 14, therefore, the empty seedling tray 8 can be easily carried out. Recovery of pallet 8.

In addition, the traveling body 5 has a front step 29a on which the operator's feet are placed in front of and below the driver's seat 3 , and the empty pallet receiver 15 is arranged above the front step 29a and below the driver's seat 3 .

According to this structure, the empty tray receiving part 15 can be arrange|positioned at the position which an operator can collect easily from the driver's seat 3 side.

In addition, the empty tray guide 14 has an upper guide portion 14 c located above the empty tray receiving portion 15 and extending toward the driver's seat 3 side at an upper portion.

According to this structure, the empty seedling tray 8 sent out from the empty tray guide 14 can be guided to the empty tray receiving part 15 by the upper part guide part 14c.

In addition, the upper part guide part 14c is an inclined shape which shifts downward toward the front.

According to this structure, the empty seedling tray 8 can be favorably guided to the empty tray receiving part 15 by the upper part guide part 14c.

Moreover, the rear end part of the empty tray receiving part 15 is located below the front-end part of the upper guide part 14c.

According to this structure, it can suppress that the empty seedling tray 8 falls from between the empty tray receiving part 15 and the empty tray guide 14. As shown in FIG.

In addition, the empty tray receiver 15 has at least one rear step 33 on which the operator places his or her feet.

According to this structure, the seedling tray 8 can be easily replenished to the placing board 10 by putting a foot on the rear step 33. As shown in FIG. In addition, by using the rear step 33 in the empty tray receiving portion 15, it is possible to achieve dual-purpose use of components.

In addition, the transplanting operation machine 4 has a plurality of seedling loading tables 9 including the loading plate 10, the vertical feed mechanism 244, the reverse guide 13, and the empty tray guide 14, and the multiple seedling loading tables 9 are included in the width of the body. The first seedling mounting stand 9R and the second seedling mounting stand 9L arranged side by side in the direction K2 are provided corresponding to the front of the first seedling mounting stand 9R and the second seedling mounting stand 9L.

According to this structure, collection|recovery of the empty seedling tray 8 discharged|emitted from the several seedling mounting base 9 can be performed easily.

In addition, the empty tray receiving part 15 has a plurality of rear pedals 33 on which the operator places his or her feet. The plurality of rear pedals 33 include a first rear pedal 33R arranged in front of the first seedling loading table 9R and a first rear pedal 33R arranged in front of the second seedling loading table 9R. Set the second rear step 33L ahead of the platform 9L.

According to this configuration, by providing the rear step 33 corresponding to the first seedling loading table 9R and the second seedling loading table 9L, it is possible to easily move the seedling tray 8 relative to the first seedling loading table 9R and the second seedling loading table 9L. each of the supplies.

As mentioned above, although one embodiment of this invention was described, it should be thought that embodiment disclosed this time is an illustration and restrictive at no points. The scope of the present invention is shown not by the above description but by the claims, and it is intended that all changes within the meaning and range equivalent to the claims are included.

Explanation of reference signs

6 fields

7 seedlings

8 seedling trays

9R first seedling carrier

9L second seedling loading table

11R first seedling removal device

11L second seedling removal device

35R first transplanting device

35L second transplanting device

37 main frame

38R First unit frame

38L second unit frame

56 track member (first track)

58 track member (second track)

61R first connecting plate

61L second connecting plate

63R First transplant unit

63L second transplant unit

71 drive spindle

76R First Mounting Plate

76L second mounting plate

221R first cage member

221L Second cage member

227R first pillar plate

227L second pillar plate

234R first roll

234L second roll

235 connecting components

236 lateral feed mechanism

K2 body width direction.

Claims (9)

1. A transplant machine, wherein the transplant machine possesses: main frame; a first seedling loading platform and a second seedling loading platform, the first seedling loading platform and the second seedling loading platform are aligned in the width direction of the machine body, and supported on the main frame so as to be movable along the body width direction; a connecting member, the connecting member connects the first seedling loading platform to the second seedling loading platform; A first transplanting unit, the first transplanting unit has a first seedling removal device for removing a seedling from a seedling tray placed on the first seedling loading table, and transplants the seedling removed by the first seedling removal device on the The first transplanting device in the field; A second transplanting unit, the second transplanting unit has a second seedling taking-out device for taking out a seedling from the seedling tray placed on the second seedling loading table, and transplants the seedling taken out by the second seedling taking-out device on the a second transplanting device for the field; and a lateral feeding mechanism, the lateral feeding mechanism is installed on the first transplanting unit and makes the first seedling loading table laterally feed along the width direction of the machine body, The first transplant unit and the second transplant unit are supported on the main frame in a manner capable of position adjustment independently in the width direction of the body, The first seedling mounting table and the first transplanting unit are connected via the lateral feed mechanism, and the first seedling mounting table and the second seedling mounting table connected to the first seedling mounting table via the connecting member The second seedling loading platform can be integrally adjusted in the body width direction and in the same direction as the moving direction of the first transplanting unit along with the position adjustment of the body width direction of the first transplanting unit, The said 2nd seedling mounting stand is attachable to the said connection member so that a position can be adjusted by changing the attachment position in the body width direction with respect to the said connection member. 2. A transplant machine, wherein the transplant machine has: main frame; a first seedling loading platform and a second seedling loading platform, the first seedling loading platform and the second seedling loading platform are aligned in the width direction of the machine body, and supported on the main frame so as to be movable along the body width direction; a connecting member, the connecting member connects the first seedling loading platform to the second seedling loading platform; A first transplanting unit, the first transplanting unit has a first seedling removal device for removing a seedling from a seedling tray placed on the first seedling loading table, and transplants the seedling removed by the first seedling removal device on the The first transplanting device in the field; A second transplanting unit, the second transplanting unit has a second seedling taking-out device for taking out a seedling from the seedling tray placed on the second seedling loading table, and transplants the seedling taken out by the second seedling taking-out device on the A second transplanting device for the field; a lateral feed mechanism, the lateral feed mechanism is installed on the first transplanting unit and makes the first seedling loading table laterally feed along the body width direction; and a drive spindle, the drive spindle is arranged at the front of the first transplant unit and the second transplant unit so as to extend along the body width direction, and is supported on the main frame to transmit power to the transverse feed mechanism, The first transplant unit and the second transplant unit are supported on the main frame in a manner capable of position adjustment independently in the width direction of the body, The first seedling mounting table and the first transplanting unit are connected via the lateral feed mechanism, and can be integrally adjusted in position along the body width direction, The second seedling loading platform is installed on the connecting member so that its position can be adjusted along the width direction of the machine body, The first transplanting unit has a first unit frame on which the first seedling removal device and the first transplanting device are installed, The second transplanting unit has a second unit frame on which the second seedling removal device and the second transplanting device are installed, The first unit frame and the second unit frame are supported by the drive spindle so as to be movable in the body width direction, The main frame has a first connecting plate arranged behind the first unit frame and a second connecting plate arranged behind the second unit frame, The first unit frame has a first mounting plate, and the first mounting plate is mounted on the first connecting plate in a position-adjustable manner along the width direction of the machine body, The second unit frame has a second mounting plate, and the second mounting plate is mounted on the second connection plate in a position-adjustable manner along the body width direction. 3. The transplanting machine according to claim 1 or 2, wherein, The main frame has a track member extending along the width direction of the body, The first seedling mounting table has a first roller supported by the rail member so as to be movable in the body width direction, and a first holder member to which the first roller is attached, The second seedling mounting table has a second roller supported by the rail member so as to be movable in the width direction of the machine body, and a second holder member to which the second roller is attached, The first cage member has a first strut plate mounted on the connecting member, The second cage member has a second post plate mounted to the connecting member. 4. A transplanting machine, wherein the transplanting machine has: main frame; a first seedling loading platform and a second seedling loading platform, the first seedling loading platform and the second seedling loading platform are aligned in the width direction of the machine body, and supported on the main frame so as to be movable along the body width direction; a connecting member, the connecting member connects the first seedling loading platform to the second seedling loading platform; A first transplanting unit, the first transplanting unit has a first seedling removal device for removing a seedling from a seedling tray placed on the first seedling loading table, and transplants the seedling removed by the first seedling removal device on the The first transplanting device in the field; A second transplanting unit, the second transplanting unit has a second seedling taking-out device for taking out a seedling from the seedling tray placed on the second seedling loading table, and transplants the seedling taken out by the second seedling taking-out device on the a second transplanting device for the field; and a lateral feeding mechanism, the lateral feeding mechanism is installed on the first transplanting unit and makes the first seedling loading table laterally feed along the width direction of the machine body, The first transplant unit and the second transplant unit are supported on the main frame in a manner capable of position adjustment independently in the width direction of the body, The first seedling mounting table and the first transplanting unit are connected via the lateral feed mechanism, and can be integrally adjusted in position along the body width direction, The second seedling loading platform is installed on the connecting member so that its position can be adjusted along the width direction of the machine body, The main frame has a track member extending along the width direction of the body, The first seedling mounting table has a first roller supported by the rail member so as to be movable in the body width direction, and a first holder member to which the first roller is attached, The second seedling mounting table has a second roller supported by the rail member so as to be movable in the width direction of the machine body, and a second holder member to which the second roller is attached, The first cage member has a first strut plate mounted on the connecting member, The second cage member has a second post plate mounted to the connecting member. 5. A kind of transplanting machine, wherein, described transplanting machine has: The first seedling loading platform and the second seedling loading platform, the first seedling loading platform and the second seedling loading platform are equipped with seedling trays; and a longitudinal feeding mechanism, the longitudinal feeding mechanism transports the seedling trays loaded on the first seedling loading platform and the second seedling loading platform along the longitudinal direction, The longitudinal feed mechanism has: a longitudinal feed main shaft, the longitudinal feed main shaft is arranged throughout the first seedling loading platform and the second seedling loading platform, and is transmitted with the longitudinal feeding power for transporting the seedling trays in the longitudinal direction; The first longitudinal feed working shaft is arranged on the first seedling loading table, and transports the seedling trays placed on the first seedling loading table along the longitudinal direction; The second longitudinal feed working shaft, the second longitudinal feed working shaft is arranged on the second seedling loading table, and transports the seedling trays placed on the second seedling loading table along the longitudinal direction; a first infeed clutch capable of intermittently transmitting power from the infeed main shaft to the first infeed work shaft; and A second longitudinal feed clutch capable of intermittently transmitting power from the longitudinal feed main shaft to the second longitudinal feed working shaft. 6. The transplanting machine according to claim 5, wherein, The longitudinal feed main shaft has: a rotating body, the rotating body is transmitted with the longitudinal feeding power; Describe the setting of the second seedling loading platform, The first longitudinal feed working shaft has a first input portion that is relatively rotatably embedded in the shaft body and adjacent to the rotation body, The first longitudinal feed clutch has: a driving engagement part provided on the rotating body; a clutch main body that is embedded in the second shaft so that it can move in the axial direction and can rotate integrally. An input part; and a driven meshing part, the driven meshing part is provided on the clutch main body, and the driven meshing part is engaged and disengaged from the driving meshing part by moving the clutch main body in the axial direction. 7. The transplanting machine of claim 6, wherein: The shaft body has a first shaft on the side of the first seedling mounting table, a second shaft on the side of the second seedling mounting table, and a combination of the first shaft and the second shaft. 8. The transplanting machine according to any one of claims 5 to 7, wherein: The second seedling loading table and the first seedling loading table are arranged in line in the width direction of the machine body, and the interval can be adjusted relative to the first seedling loading table in the width direction of the machine body, The longitudinal feed main shaft has an extended shaft protruding from the second seedling mounting table to the side opposite to the first seedling mounting table, The second longitudinal feed working shaft has a second input portion that is relatively rotatably embedded in the extension shaft portion, The second longitudinal feed clutch includes: a rotating part fitted in the extended shaft part so as to be movable in the axial direction and integrally rotatable, and attached to the second seedling mounting table; and a clutch A shifter, the clutch shifter is embedded in the second input part so as to be movable in the axial direction and integrally rotatable, and is engaged and disengaged from the rotating part by moving in the axial direction. 9. The transplanting machine of claim 8, wherein: The first longitudinal feed clutch is arranged on the side opposite to the second seedling loading platform of the first seedling loading platform.

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