JP5712969B2 - Seedling planting machine - Google Patents

Description

  The present invention relates to a seedling planting machine.

  A right and left seedling supply for supplying right and left seedling planting bodies to the left and right seedling planting bodies, each of which is configured to plant seedlings in a field by moving up and down with a predetermined operation locus by a vertical movement mechanism An apparatus is provided, and the seedling supply device includes a seedling supply cup serving as a plurality of seedling containers for storing seedlings, and a plurality of seedling supply cups arranged in a loop at a predetermined arrangement pitch, and sequentially above the seedling planting body. A moving mechanism that moves around so as to pass, and seedling planting in which the seedling contained in the seedling container is moved up by a vertical movement mechanism when the seedling container moves to a drop supply position that is above the seedling planting body by the moving mechanism Some seedling planting machines equipped with a seedling dropping supply mechanism for dropping and supplying to a body are provided with a planting position changing mechanism capable of moving a seedling planting body.

JP 2008-54592 A

  The above-mentioned background art can adjust the seedling planting position by moving the seedling planting body, but the adjustment position of the seedling planting position is limited relative to the seedling supply device, Can only be changed and adjusted up to two stages.

  This invention makes it a subject to implement | achieve accommodation of a seat with a simple structure in a seedling transplanter. It is another object of the present invention to prevent the machine from being damaged when the seat is stored. Another object of the present invention is to improve the workability by reducing the width of the machine body with a simple configuration, allowing easy loading into a truck and storage in a warehouse. Another object is to prevent the empty seedling tray from falling or scattering. In addition, as a configuration for supplying seedlings to the left and right seedling planting bodies with a common seedling supply device having a seedling container that moves around in a single loop path, the configuration is simplified and the seedling supply to the seedling supply device is easy It is an object of the present invention to make it possible to appropriately supply seedlings to a seedling planting body and to easily change the spacing between planting strips to three or more stages while maintaining the conversion.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the invention according to claim 1 is provided with a seedling planting body (5) that moves up and down by a vertical movement mechanism (4) to plant seedlings in a field, and supplies seedlings to the seedling planting body (5). The device (24) includes a plurality of seedling containers (25) for storing seedlings and a plurality of seedling containers (25) arranged in a loop at a predetermined arrangement pitch (P1), and sequentially seedling planting bodies ( 5) a moving mechanism (26) that makes a circular movement so as to pass above, and a drop supply position (39 ·) at which the seedling container (25) is positioned above the seedling planting body (5) by the moving mechanism (26). and a seedling drop supply mechanism for dropping supplied moving the seedling seedlings container (25) is accommodated planting body moved up by the vertically moving mechanism (4) to (5) (27) 40), a seat (79 ) Are provided on the left and right sides of the seedling stage (89). Part (101a), an outer seedling mounting part (101b) on the outside of the machine body, and the outer seedling mounting part (101b) is the uppermost inner seedling mounting part among the upper and lower inner seedling mounting parts (101a) The seedling transplanter was arranged at the same height as (101a), and was configured to be able to be folded on the inner seedling placing part (101a) by rotating the outer seedling placing part (101b) inward .

The invention according to claim 2 is the seedling planting machine according to claim 1, wherein the seat (79) is rotated and stored above the seedling supply device (24) .

In the invention according to claim 3, the left and right seedling platforms (89) are rotated and stored in the left and right in the state where the seat (79) is rotated and stored above the seedling supply device (24). It was set as the seedling transplanter of Claim 2 made the structure to do.

Moreover, the invention which concerns on Claim 4 provides the seedling planting body (5) on each of the left and right, and the seedling feeding device (24) has the left and right seedling planting bodies (5) at the left and right fall supply positions (39, 40). The first seedling container (25b) that stores seedlings to be supplied to fall at one fall supply position (39) and the seedling to be supplied to be dropped at the other fall supply position (40) are stored. A second seedling container (25c) is provided separately, and the first and second seedling containers (25b, 25c) are moved by the moving mechanism (26) to move to the respective drop supply positions (39, 40). And a planting position changing mechanism (A) for moving the left and right seedling planting bodies (5) separately, and a drop position changing mechanism (B) for changing the drop supply position (39, 40). , Receiving seedlings dropped from the seedling supply device (24), ) A seedling guide (51) to be guided into the seedling planting body (5) is provided at the top, and the width (L1) of the upper end opening of the seedling guide (51) is set to the seedling container (25) The seedling transplanter according to any one of claims 1 to 3, which is configured to have a width wider than twice the pitch (P1) .

In the invention according to claim 5, the vertical movement mechanism (4) is configured to include an upper and lower elevating link (52, 53), and each of the upper and lower elevating links (52, 53) has a vertical movement at each of the upper and lower ends. The connecting member (57) is connected via the connecting shaft (66, 67), and the planting position changing mechanism (A) slides relative to the connecting member (57) and moves in the left-right direction. A position adjustment shaft (70a) and a second position adjustment shaft (70b) that moves in the left-right direction integrally with the first position adjustment shaft (70a) are provided, and seedlings are formed along the second position adjustment shaft (70b). The planting body (5) is supported so as to be movable in the left-right direction, and the first position adjusting shaft (70a) is disposed closer to the lift link (52, 53) than the upper and lower connecting shafts (66, 67). It was set as the seedling transplanter described in 1 .

According to the invention which concerns on Claim 1, an empty seedling tray (T) is mounted in an internal seedling mounting part (101a), an external seedling mounting part (101b) is rotated inside, and an internal seedling mounting part (101a) By folding up, the body width can be reduced, and the outer seedling placing part (101b) can hold the empty seedling tray (T) from the upper side, so that the empty seedling tray (T) can be prevented from falling or scattering .
According to the invention of claim 2, in addition to the effect of the invention of claim 1 , the seat (79) can be stored above the seedling supply device (24) with a simple configuration .

  According to the invention of claim 3, in addition to the effect of the invention of claim 2, the body width can be reduced with a simple configuration, loading into a truck and storage in a warehouse can be easily performed, and workability is improved. good.

According to the invention according to claim 4, in addition to the effect of the invention according to any one of claims 1 to 3 , the seedling supply device (24) allows a plurality of seedling containers (25) to be routed in a loop path. When the first seedling container (25b) reaches one fall supply position (39) by the seedling drop supply mechanism (27), the seedling is moved downward by the moving mechanism (26), and the seedling planting body (5) below is formed. When the second seedling container (25c) reaches the other fall supply position (40), the seedlings are dropped and supplied to the lower seedling planting body (5), and the right and left seedling planting bodies (5) The vertical movement mechanism (4) moves up and down along a predetermined operating locus to plant seedlings in the field. And when changing between planting strips, the mutual space | interval of a right and left seedling planting body (5) is changed along the circumference movement path | route of a seedling container (25) by a planting position change mechanism (A). The seedling planting body (5) is moved to and the drop supply position (39, 40) is changed by the drop position changing mechanism (B). At this time, the width (L1) of the upper end opening of the seedling guide (51) of the seedling planting body (5) is wider than twice the pitch (P1) of the seedling container (25) of the seedling supply device (24). Therefore, even if the spacing between the planting lines is changed to three or more, the seedlings can be appropriately supplied from the seedling container 25 of the seedling supply device 24 to the left and right seedling planting bodies 5. Therefore, it can be changed with a simple configuration between three or more planting strips. However, the seedling can be properly supplied to the seedling planting body (5), and the seedling planting accuracy is good.

According to the invention of claim 5 , in addition to the effect of the invention of claim 4 , the first position adjusting shaft (70a) is located closer to the lift link (52, 53) than the upper and lower connecting shafts (66, 67). Since the length of the whole seedling planting device (23) is shortened, a compact seedling planting device (23) can be configured. Furthermore, since the left and right positions of the seedling planting body (5) can be changed in two stages by the first position adjusting shaft (70a) and the second position adjusting shaft (70b) arranged in parallel, it is compact. It is possible to increase the width of the change between the strips with a compact configuration.

It is a side view of a seedling transplanter. It is a top view of a seedling transplanter. It is a figure which shows a winding sprocket and its periphery (a: top view, b: perspective view). It is a perspective view which shows a seedling planting apparatus. It is an action explanatory view showing an operation of a seedling supply device and a seedling planting device when it is set to 500 mm between stripes (a: top view for explaining operation, b: rear view for explaining operation). It is an action explanatory view showing an operation of a seedling supply device and a seedling planting device when it is set to 500 mm between stripes (a: top view for explaining operation, b: rear view for explaining operation). It is an action explanatory view showing an operation of a seedling supply device and a seedling planting device when set to 550 mm between stripes (a: top view for explaining operation, b: rear view for explaining operation). It is an action explanatory view showing an operation of a seedling supply device and a seedling planting device when set to 550 mm between stripes (a: top view for explaining operation, b: rear view for explaining operation). It is an action explanatory view showing an operation of a seedling supply device and a seedling planting device when it is set at 600 mm (a: a plan view for explaining an action, b: a rear view for explaining an action). It is an action explanatory view showing an operation of a seedling supply device and a seedling planting device when it is set at 600 mm (a: a plan view for explaining an action, b: a rear view for explaining an action). It is an action explanatory view showing an operation of a seedling supply device and a seedling planting device when set to 650 mm between stripes (a: top view for explaining operation, b: rear view for explaining operation). It is an action explanatory view showing an operation of a seedling supply device and a seedling planting device when set to 650 mm between stripes (a: top view for explaining operation, b: rear view for explaining operation). It is an action explanatory view which shows an operation of a seedling supply device and a seedling planting device when set to 700 mm between stripes (a: top view for operation explanation, b: back view for operation explanation). It is an action explanatory view which shows an operation of a seedling supply device and a seedling planting device when set to 700 mm between stripes (a: top view for operation explanation, b: back view for operation explanation). It is a front view for an operation explanation explaining an operation of a seedling stand. It is an operation explanation top view explaining an operation of a seedling stand. It is a side view for an operation explanation explaining an operation of a seedling stand. It is a perspective view which shows the other example of a seedling planting apparatus. It is a perspective view which shows the other example of a seedling planting apparatus.

  A seedling transplanter 1 according to an embodiment of the present invention will be described below. In the following description, the side on which the steering handle 2 is disposed is the rear, and the opposite side, that is, the side on which the engine 3 is disposed is the front. Then, the right hand side of the worker standing toward the front side of the machine body at the rear part of the machine body is set to the right, and the left hand side is set to the left.

  The seedling planting machine 1 includes a beak-shaped seedling planting body 5 that can be opened and closed and is connected to a vertical movement mechanism 4 that is driven to move up and down to a machine body that includes a traveling device and a steering handle 2. A pair of left and right front wheels 6 that are freely supported and a pair of left and right rear wheels 7 that are driven and rotated by transmission of power from the engine 3 are provided. The front wheel 6 and the rear wheel 7 can be guided in the gutter groove so that the aircraft can travel above the gutter U.

  A mission case 8 is disposed at the rear of the engine 3, and the output shaft of the engine 3 enters the mission case 8, and engine power is transmitted from the output shaft of the engine 3 to the transmission mechanism in the mission case 8. It has a configuration. A chain transmission case 9 is attached to both left and right sides of the transmission case 8 so as to be rotatable about a rotation fulcrum 9a, and is extended from the transmission case 8 to the left and right outer sides on the rotation fulcrum 9a of the chain transmission case 9. The tip of the wheel drive shaft enters and transmits driving power to the transmission mechanism in the chain transmission case 9. The traveling power is transmitted to the axle 10 that extends to the rear side of the machine body and protrudes to the rear end side via the transmission mechanism in the chain transmission case 9, and the rear wheel 7 is driven to rotate. .

  A left / right horizontal hydraulic rolling cylinder 11 is provided on the left side of the fuselage, and is pivotable around a vertical axis to a lifting hydraulic cylinder 14 (described later) at a piston rod end of the left / right horizontal rolling cylinder 11. The left end of the provided balance 12 is attached. Further, the right end of the balance rod 12 is connected to the rod 13.

  When the piston rod 14a protrudes rearward of the lifting hydraulic cylinder 14 provided at the center of the machine body based on the detection result of the saddle height detection sensor 15 described later, the rod 13 and the left and right horizontal control rolling cylinder 11 also The arm 16 which moves rearward and is connected to the rod 13 and the rolling cylinder 11 respectively pivots rearward in a side view of the machine body, and accordingly, the left and right chain transmission cases 9 move downwards around the pivoting fulcrum 9a. As a result, the left and right rear wheels 7 are lowered and the fuselage is raised. On the contrary, when the piston rod 14a of the lifting hydraulic cylinder 14 is retracted forward, the left and right arms 16 are rotated forward, and accordingly, the chain transmission case 9 is rotated upward around the rotation fulcrum 9a. As a result, the left and right rear wheels 7 are raised and the aircraft is lowered.

  Further, when the left and right horizontal control rolling cylinder 11 is extended and contracted, only the left chain transmission case 9 is moved up and down, and only the left rear wheel 7 is moved up and down to tilt the machine body to the left and right. The left / right horizontal control rolling cylinder 11 is configured to operate so that the airframe is horizontally horizontal based on a detection result of a sensor (not shown) that detects right / left inclination of the airframe relative to the left / right horizontal.

  The pair of front wheels 6 is rotatably attached to an axle 19 fixed to the side of the lower end of an arm portion 18 that extends downward from the left and right sides of the front wheel support frame 17 that extends from the left and right center position below the engine 3 to the left and right. .

  The steering handle 2 is attached to the rear end portion of the body frame 20 whose front end portion is fixed to the mission case 8. The body frame 20 is disposed at the center of the left and right sides of the body and extends rearward, and extends obliquely rearward and upward from the front and rear intermediate portion. The steering handle 2 extends rearward from the rear end portion of the body frame 20 to the left and right, and the rear end portions thereof serve as grip portions 2 a and 2 a of the steering handle 2. The left and right grip portions 2a, 2a of the steering handle 2 are set to an appropriate height so that the operator can easily grip the grip portions 2a, 2a with hands. In the example shown in the figure, the grip portions 2a, 2a are divided into left and right, but the left and right rear end portions of the steering handle 2 may be connected to each other left and right, and the connecting portion may be used as the grip portion 2a.

  The vertical movement mechanism 4 for operating the seedling planting body 5 is mounted on a planting transmission case 22 having a transmission mechanism for transmitting the power for driving the seedling planting body 5 from the transmission case 8 via the transmission shaft 21. . In the planting transmission case 22, a transmission mechanism for transmitting power for driving the seedling planting body vertical movement mechanism 4 to move up and down is provided.

  The transmission mechanism in the planting transmission case 22 includes an intermittent drive mechanism that stops the vertical movement mechanism 4 and the pair of left and right seedling planting bodies 5 at the highest position of the vertical movement or at a position near the vertical movement mechanism, And a clutch mechanism that stops the vertical movement mechanism 4 and the seedling planting body 5 from moving up and down. The time for stopping by the intermittent drive mechanism is adjusted by a speed change mechanism provided in the intermittent drive mechanism, and the adjustment between the seedling planting stocks by the seedling planting body 5 is adjusted by this adjustment.

  The seedling supply device 24 that supplies seedlings to the seedling planting device 23 including the seedling planting body 5 receives seedlings from above and stores seedlings as a plurality (32 in total) of seedling containers. The cup 25, a moving mechanism 26 for moving the seedling supply cup 25 so as to pass above the seedling planting body 5, and the bottom portion of the seedling supply cup 25 at the position above the seedling planting body 5 are opened and accommodated inside. An opening mechanism 27 serving as a seedling dropping supply mechanism that drops the seedlings that have been dropped and supplies seedlings to the seedling planting body 5 is provided. The seedling supply cup 25 has a cylindrical body that opens up and down and a bottom lid 25a that opens and closes an opening on the lower side of the cylindrical body, and is connected to each other in a loop shape. The moving mechanism 26 is configured to rotate around an oval loop trajectory that is long to the left and right as viewed from above. The opening mechanism 27 is configured to open the bottom lid 25 a of the seedling supply cup 25 at a position above the seedling planting body 5. The seedling supply device 24 is configured to supply the seedlings by moving the seedling supply cup 25 around the two seedling planting bodies 5 in one round.

  A cylindrical outer peripheral portion is formed on the outer periphery of the seedling supply cup 25, and an engagement portion (round hole) that engages with the cylindrical outer periphery in a freely rotatable manner is provided to connect the two seedling supply cups 25. A plurality of bodies 28 are provided, the engaging part of the connecting body 28 is rotatably engaged with the outer peripheral part of the cylinder of the seedling supply cup 25, and the adjacent seedling supply cup 25 is rotatable about the outer peripheral part of the cylinder as a rotation axis. A plurality of seedling supply cups 25 are connected to each other. In other words, the seedling supply cup 25 and the connecting body 28 are connected like an endless chain. As a result, the seedling supply cup 25 supplies the seedlings from the seedling supply cup 25 to the seedling planting body 5 because the distance between the seedling supply cup 25 and the adjacent seedling supply cup 25 does not change regardless of whether the seedling supply cup 25 moves linearly or circularly. Thus, the seedling supply cup 25 is less likely to be displaced with respect to the seedling planting body 5, and the seedling supply is properly performed, so that an accurate seedling can be transplanted.

  The moving mechanism 26 wraps the seedling supply cups 25 that are connected to each other like an endless chain by engaging them with arcuate cutouts on the outer periphery of the winding sprocket 29 provided on the left and right sides. Is driven and rotated by the power extracted from the planting transmission case 22 so that the seedling supply cup 25 rotates counterclockwise in plan view of the machine body. From each of the output shafts, each rotary shaft 30 to which the winding sprocket 29 is rotatably attached is attached to a support frame that extends from the planting transmission case 22 to the left and right, and protrudes upward from the upper portion of the planting transmission case 22. The drive sprocket 33, the chain 34, and the driven sprocket 35 are transmitted to the rotating shaft 30 that rotates integrally with the driven sprocket 35. The driven sprocket 35 and the winding sprocket 29 are coupled by a bolt 36 so that both rotate integrally. Therefore, the circumferential movement path of the seedling supply cup 25 includes left and right semicircular arc-shaped portions 37 and front and rear linear portions 38 connected to the arc-shaped portion 37. The seedling supply cup 25 moves to the right in the linear portion 38 on the rear side so as to pass above the right and left seedling planting bodies 25, and the seedlings are transferred to the seedling planting body 5 in the linear portions 38. Left and right drop supply positions 39 and 40 for drop supply are set. The left and right pivot shafts 30 around which the seedling supply cup 25 circulates are arranged on the inner side of the left and right rear wheels 7 and on the rear side of the axle 10 position of the rear wheels 7. The seedling planting body 5 is arranged on the rear side of the axle 10 position of the rear wheel 7.

  The bolt 36 is screwed into the screw hole of the driven sprocket 35 from below through an arc-shaped long hole 29a provided in the winding sprocket 29 that is long in the rotational direction. Therefore, by loosening the bolt 36, the rotational phase of the driven sprocket 35 and the winding sprocket 29 can be changed and adjusted within the range of the arc-shaped elongated hole 29a. The adjustment range by the arc-shaped elongated hole 29a is an arrangement pitch of the seedling supply cup 25 in the winding sprocket 29 (one half of an arrangement pitch of first and second seedling supply cups 25b and 25c described later). ) Is set. The arcuate long holes 29a, bolts 36, and the like accommodate seedlings that are dropped and supplied to the seedling planting body 5 when the left and right seedling planting bodies 5 are moved upward in accordance with the change of the left and right drop supply positions 39, 40. The rotation timing changing mechanism C changes the rotation position of the seedling supply cup 25 with respect to the operation of the vertical movement mechanism 4 so that the seedling supply cup 25 to be reached reaches the drop supply positions 39 and 40.

  A plurality (32 in total) of seedling supply cups 25 are exclusively used for the first seedling supply cup 25b that accommodates seedlings to be supplied at one (left side) drop supply position 39, and the other (right side) drop supply position 40 is provided. A total of 16 second seedling supply cups 25c that contain seedlings to be supplied in a separate manner, and the first seedling supply cup 25b and the second seedling supply cup 25c are alternately connected to each other. It has become. And when the 1st seedling supply cup 25b is located in one fall supply position 39, it has set so that the 2nd seedling supply cup 25c may be located in the other fall supply position 40. Accordingly, the first and second seedling supply cups 25b and 25c are moved by the moving mechanism 26 around the looped path with the same amount of movement. 39 and 40 are configured to reach the same number of times at the same timing. Then, the bottom cover 25a of the first seedling supply cup 25b that accommodates the seedling to be supplied to the left seedling planting body 5 is provided with a protrusion 41 at the right end (outer end of the loop) in the rotating direction. . On the other hand, the bottom lid 25a of the second seedling supply cup 25c that accommodates the seedlings to be dropped and supplied to the right seedling planting body 5 is provided with a protrusion 41 at the left end (inner end of rotation) with respect to the rotation direction. .

  The opening mechanism 27 is provided with a support 42 that supports the bottom cover 25a from below so that the bottom cover 25a does not rotate downward below the orbit of the seedling supply cup 25. The support 42 is a seedling planting body. 5 so that the bottom cover 25a is supported by the support 42 when the seedling supply cup 25 passes through the upper position (the drop supply positions 39, 40) of the seedling planting body 5. Is released and rotated downward by its own weight and the gravity of the seedling, and the lower part of the seedling supply cup 25 is opened so as to drop the seedling downward. In addition, the rotation fulcrum of the bottom cover 25a is provided in the lower rotation side part of the seedling supply cup 25, and the bottom cover 25a is configured to open from the upper rotation side of the seedling supply cup 25.

  The support body 42 includes fixed support bodies 42a, 42b, 42c, and 42d fixed to the airframe, and movable support bodies 42e and 42f that can change positions relative to the airframe. The fixed support bodies 42a, 42b, 42c, and 42d are a main fixed support body 42a that covers the entire area of the left and right arc-shaped portions 37 and the front linear portion 38 in the circulation locus of the seedling supply cup 25, and a rear linear portion. 38, first, second and third sub-fixing supports 42b, 42c and 42d are provided. The main fixed support 42a and the first, second, and third sub fixed supports 42b, 42c, and 42d are made of bar material. The main fixed support 42a is extended along the circular trajectory of the seedling supply cup 25 so as to contact the center of the bottom cover 25a, and opens the bottom lid 25a of the first and second seedling supply cups 25b and 25c. Support not to be. The first sub-fixing support 42b is provided in a straight line along the circulation locus of the seedling supply cup 25 so as to contact the protrusion 41 provided at the outer end of the rotation in the bottom lid 25a of the first seedling supply cup 25b. The bottom cover 25a of the first seedling supply cup 25b is supported so as not to open. The first sub-fixing support 42b supports the bottom cover 25a by closing and supporting only the bottom cover 25a of the first seedling supply cup 25b from the middle of the rectilinear portion 38 in the circumference of the seedling supply cup 25. Is provided at a position on the right side of the linear portion 38 on the rear side and on the upper side of the bottom lid of the main fixed support 42a so that the subsequent main fixed support 42a is taken over. The second sub-fixing support 42c is provided in a straight line along the circumferential locus of the seedling supply cup 25 so as to contact the protrusion 41 provided on the inner end of the circumference of the bottom lid 25a of the second seedling supply cup 25c. The bottom cover 25a of the second seedling supply cup 25c is supported so as not to open. The second sub-fixing support 42c takes over the support of the bottom cover 25a of the main fixed support 42a in the circumference of the seedling supply cup 25 and supports only the bottom cover 25a of the second seedling supply cup 25c. It is provided at a position on the left side of the linear portion 38 on the rear side and on the lower side of the bottom cover around the main fixed support 42a. The third sub-fixing support 42d is configured to contact the center of the bottom cover 25a, and the bottom cover 25a of the first seedling supply cup 25b from the middle of the linear portion 38 on the rear side in the circumference of the seedling supply cup 25. Is provided with a lower inclined portion toward the upper side of the circuit, and is closed while guiding the bottom lid 25a of the first seedling supply cup 25b opened at the inclined portion to the upper side. It is provided at a substantially central position of the portion 38 and in parallel with the start end (left end) of the first sub-fixing support 42b around the bottom lid. The end (right end) of the third sub-fixing support 42d in the bottom lid circulation is positioned on the upper side (left side) in the bottom lid rotation from the end (right end) of the second sub-fixing support 42c in the bottom lid rotation. doing. In addition, the start end part in the bottom cover circulation of the main fixed support 42a is provided with an inclined part that is lower on the upper side of the circulation so as to close the bottom cover 25a of the second seedling supply cup 25c, and is opened at the inclined part. The bottom lid 25a of the seedling supply cup 25c is closed while being guided upward.

  The first sub-fixing support 42b is provided by fixing the right end to a first support member 43 extending from the support frame 31 to the right end of the linear portion 38 on the rear side. The second sub-fixing support 42c is fixed to the second support member 44 extending from the support frame 31 to the left end of the linear portion 38 on the rear side, and the right end is rearward from the planting transmission case 22. The third support member 45 extends and is fixedly provided. The third sub-fixing support 42d is fixedly provided on the third support member 45. The main fixed support 42 a is fixedly provided on the upper surfaces of the first support member 43 and the second support member 44.

  The moving supports 42e and 42f are composed of a first moving support 42e and a second moving support 42f provided on a part of the linear portion 38 on the rear side. The first moving support 42e and the second moving support 42f are made of a plate material. The first moving support 42e is provided in a straight line along the orbit of the seedling supply cup 25 so as to contact the protrusion 41 provided on the outer end of the circumference of the bottom lid 25a of the first seedling supply cup 25b. The first seedling supply cup 25b is configured to support the bottom cover 25a of the first seedling supply cup 25b so as not to open, and the first seedling supply cup is taken over by supporting the bottom cover 25a of the main fixed support 42a around the seedling supply cup 25. In order to support only the bottom cover 25a of 25b, it is provided on the left side of the linear portion 38 on the rear side and on the lower side of the bottom cover around the main fixed support 42a. The first moving support body 42e is laterally moved to the second support member 44 via a disc spring 47 'by means of a mounting bolt 47 provided through the elongated hole 46 provided in the left-right direction provided in the second support member 44. The position in the left-right direction can be changed by the long hole 46, and the position is fixed by the elastic force of the disc spring 47 ′. The mounting bolt 47 is located on the outer side (rear side) of the surrounding area of the seedling supply cup 25 and is provided at a position where the seedling supply cup 25 does not get in the way. The drop position changing mechanism B is configured by a long hole 46 and a mounting bolt 47 which are provided in the first moving support 42e and the second support member 44 in the left-right direction.

  The second moving support body 42f includes a linear portion along the circulation locus of the seedling supply cup 25 so as to abut on the protrusion 41 provided on the inner end of the rotation of the bottom lid 25a of the second seedling supply cup 25c, The second seedling supply cup 25c is configured to support the bottom cover 25a so as not to open. In the circumference of the seedling supply cup 25, the second seedling supply cup 25c takes over the support of the bottom cover 25a of the second auxiliary fixed support 42c. At the position on the right side of the linear portion 38 on the rear side so as to support the bottom lid 25a of the supply cup 25c and at the end of the main lid 42a on the upper side of the circumference of the bottom lid (the arc-shaped portion 37 on the right side in the circumferential locus) (Starting end portion) and is provided with a space. The second moving support member 42f is moved in the left-right direction via the disc spring 49 'to the third support member 42d by a mounting bolt 49 penetrating the elongated hole 48 provided in the left-right direction provided in the second moving support member 42f. It is mounted freely, and the position in the left-right direction can be changed by the long hole 48, and is fixed at the position by the elastic force of the disc spring 49 ′. The second moving support 42f has a U-shape in plan view that is divided into two parts: a position adjusting portion provided with a long hole 48 and a bottom lid supporting portion that supports the bottom lid 25a. The second sub-fixing support 42c is disposed between the position adjusting portion and the bottom lid support portion, and the bottom lid 25a can be reliably supported by taking over the second sub-fixing support 42c. . Further, when the position of the second movable support 42f is set to the position (left end position) closest to the bottom cover around the long hole 48, the bottom cover support part is connected to the second sub fixed support 42c and the third sub support support 42c. The second movable support 42f and the second and third sub-fixed supports 42c and 42d are compactly arranged. The mounting bolt 49 is located on the inner side (front side) of the surrounding area of the seedling supply cup 25 and is provided at a position where the seedling supply cup 25 does not get in the way. The drop position changing mechanism B is constituted by the second moving support 42f, the long hole 48 provided in the left-right direction and the mounting bolt 49, etc. provided in the second moving support 42f.

  Further, the right end of the first moving support 42e and the second moving support 42f (release the support of the protrusion 41 of the bottom cover 25a from below with the first moving support 42e or the second moving support 42f, If a seedling guide for properly supplying seedlings into the seedling planting body 5 is provided at the bottom lid 25a of the seedling supply cup 25b and the seedlings are supplied into the seedling planting body 5 The seedlings in the seedling supply cup 25 are appropriately supplied into the seedling planting body 5 at the supply positions 39 and 40, so that a seedling supply mistake from the seedling supply cup 25 to the seedling planting body 5 is prevented, and a lack of stock is prevented. At the same time, the inner seedling planting body 5 can plant seedlings in an appropriate posture, and the planting posture of the seedlings is improved.

  Two elongated holes 46 and 48 and two mounting bolts 47 and 49 for changing the positions of the first moving support 42e and the second moving support 42f are provided on the left and right sides, respectively, and the first moving support 42e. In addition, the second moving support 42f is configured to be movable in the left-right straight direction. Further, the amount of position change of the first moving support 42e and the second moving support 42f is regulated by the long holes 46 and 48 to the arrangement pitch in the seedling supply cup 25, and planting which will be described later by this regulating means. The drop supply positions 39 and 40 are not adjusted to an incorrect position by changing the position. Accordingly, when the first seedling supply cup 25b moves to the position where the bottom cover 25a of the first seedling supply cup 25b is not supported at the end (right end) on the lower side of the bottom cover around the first moving support 42e. The bottom lid 25a of the first seedling supply cup 25b is opened. That is, the end (right end) of the first moving support 42e on the lower side around the bottom lid is the first (left side) drop supply position 39. Further, when the second seedling supply cup 25c moves to a position where the bottom cover 25a of the second seedling supply cup 25c is not supported at the end (right end) on the lower side of the bottom cover around the second moving support 42f. The bottom lid 25a of the second seedling supply cup 25c is opened. That is, the end (right end) of the second moving support 42f on the lower side of the bottom lid circulation is the second (right) drop supply position 40. The second sub-fixing support 42c constitutes an opening restricting means for preventing the bottom cover 25a of the second seedling supply cup 25c from being opened at the first drop supply position 39 on the upper side of the circuit.

  Therefore, when the first moving support 42e is positioned on the most peripheral lower side (right side) by the long hole 46, and the second moving support 42f is positioned on the most peripheral upper side (left side) by the long hole 48, the first The distance between the drop supply position 39 and the second drop supply position 40 is the smallest, and the space between the planting strips is the narrowest. At this time, the interval between the left and right drop supply positions 39, 40 is three times the arrangement pitch in the seedling supply cup 25, that is, 1.5 times the arrangement pitch in the first and second seedling supply cups 25b, 25c. On the other hand, when the first moving support 42e is positioned on the most circumferential upper side (left side) by the long hole 46, and the second moving support 42f is positioned on the most lower rotating side (right side) by the long hole 48, the first The distance between the second drop supply position 39 and the second drop supply position 40 is the largest, and the space between the planting strips is the widest. At this time, the distance between the left and right drop supply positions 39, 40 is 5 times the arrangement pitch in the seedling supply cup 25, that is, 2.5 times the arrangement pitch in the first and second seedling supply cups 25b, 25c. Accordingly, each drop supply position 39, 40 can be changed in position by the arrangement pitch in the seedling supply cup 25, and the distance between the left and right drop supply positions 39, 40 is the first and second seedlings. It changes by the distance of an integral multiple (1 times) of the arrangement pitch in the supply cups 25b, 25c (an even multiple (2 times) of the arrangement pitch in the seedling supply cup 25).

  The seedling planting device 23 moves up and down between a beak-shaped seedling planting body 5 whose tip is directed downward, and a position where the lower end of the seedling planting body 5 is above the farm scene and a position below the farm scene. A vertical movement mechanism 4 for moving the seedling planting body 5 up and down, a closed state in which the lower end portion of the beak-shaped seedling planting body 5 is closed and a seedling is received from above and a seedling can be accommodated inside, and the lower end of the seedling planting body 5 An opening / closing mechanism 50 for opening and closing the seedling planting body 5 is provided in an open state in which the part opens left and right and the seedling accommodated inside can be released downward.

  This seedling planting machine 1 has a configuration of a plurality of row plantings in which a plurality of seedling planting bodies 5 are arranged side by side at set intervals. In this example, it is set as the structure of the two-row planting which arrange | positioned the seedling planting body 5 side by side with the set space | interval at a set interval.

  The two seedling planting bodies 5 are attached integrally to the vertical movement mechanism 4 provided on the left and right side portions of the planting transmission case 22. A beak-like seedling planting body 5 with the tip facing downward is composed of a left seedling planting body 5L and a right seedling planting body 5R, and is divided into left and right parts. The body 5R rotates in the left-right direction to open the lower end. In addition, the right and left seedling planting bodies 5 are configured to vertically move and open and close synchronously by the vertical movement mechanism 4 and the opening / closing mechanism 50, and to plant two seedlings in a row on the farm field.

  The seedling guide 51 is a cylindrical body that is provided above the seedling planting body 5 and guides the seedling supplied from the seedling feeding device 24 into the seedling planting body 5. The seedling planting body 5 can be accurately supplied. The width L1 of the upper end opening of the seedling guide 51 is wider than twice the pitch P1 of the seedling supply cup 25 of the seedling supply device 24 (that is, the width of the bottom ends of the two seedling supply cups 25 arranged side by side. The width is wider than the interval L2.

  The vertical movement mechanism 4 of the seedling planting body 5 is provided on both the left and right sides of the planting transmission case 22. Specifically, the upper and lower lift links 52, 53 are connected to the seedling planting body 5 by attaching the front part to the shaft projecting to the left and right sides of the planting transmission case 22 so that the front part can freely rotate up and down. , A drive shaft 54 that rotates from the side of the planting transmission case 22, a drive arm 55 that is attached so as to rotate integrally with the drive shaft 54, a rotation outer peripheral side end portion of the drive arm 55, and the aforementioned An interlocking arm 56 is rotatably connected to the upper lifting link 52. The rear end portions (rotating tip portions) of the upper and lower elevating links 52 and 53 are pivotally attached to and connected to the connecting member 57. The seedling planting body 5 is attached to the connecting member 57.

  Therefore, when the drive arm 55 is driven and rotated by the rotation of the drive shaft 54, the elevating links 52 and 53 move up and down, and the left and right seedling planting bodies 5 move up and down. The lower end portion of the seedling planting body 5 is positioned above the field scene at the ascending position of the vertical movement, and the lower end portion of the seedling planting body 5 is positioned below the field scene at the descending position.

  Further, the rotation fulcrum shaft 58 of the upper elevating link 52 is provided at a position that is eccentric from the center axis of the output shaft 59 at the tip of the planting output shaft 59 that projects from the planting transmission case 22 and rotates. The rotation of the planting output shaft 59 moves around the axis of the planting output shaft 59 while rotating with an eccentric amount (the distance between the pivot fulcrum shaft 58 and the axis of the planting output shaft 59) as a radius. When the upper fulcrum shaft 58 moves up and down during the up-and-down movement of the upper elevating link 52, the seedling planting body 5 is tilted back and forth during the up-and-down movement, and the seedling planting body 5 is looped in a side view. It is configured to move up and down along the operating locus.

  Next, the opening / closing mechanism 50 of the seedling planting body 5 will be described. The end of the inner wire 61a of the opening / closing cable 61 is connected to the tip of the left opening / closing arm 60 provided on the left seedling planting body 5L, and the right opening / closing arm is provided on the right seedling planting body 5R. An end of the outer cable 61b of the opening / closing cable 61 is connected to the distal end of 62, and an operating arm 64 rotatably attached to a rotation fulcrum shaft 63 pivotally attached to the base of the lower lift link 53 is provided. The other end of the inner wire 61a of the opening / closing cable 61 is connected to the distal end of the operating arm 64, and the other end of the outer cable 61b of the opening / closing cable 61 is fixedly attached to the machine body side. FIG. 5 shows the left seedling planting device 23, and the right seedling planting device 23 is symmetrical with the left seedling planting device 23, so that the front end portion of the left opening / closing arm portion is shown. The end portion of the outer cable of the opening / closing cable is connected to the end portion, and the end portion of the inner wire of the opening / closing cable is connected to the tip portion of the right opening / closing arm portion. Then, the operating arm 64 is set under the action of a cam attached so as to rotate integrally with the planting output shaft 50 that rotates and moves the rotation fulcrum shaft 58 pivotally attached to the base of the upper lifting link 52. It is set as the structure rotated to the front side at timing. As a result, when the seedling planting body 5 moves up and down by the drive rotation of the drive shaft 54 and reaches the lowered lower end position, the operating arm 64 is rotated forward by the change of the operating position of the cam, and the outer cable of the opening / closing cable 61 The inner wire 61a is pulled to the right with respect to 61b and the left opening / closing arm 60 and the right opening / closing arm 62 rotate so as to approach each other, and the right seedling planting body 5R rotates to the right. The left seedling planting body 5L is rotated to the left in conjunction with the above, and the lower side of the seedling planting body 5 opens to the left and right, and opens downward. Then, the seedling planting body 5 rises and the operating arm 64 rotates to the original position (rear side) with respect to the seedling planting body 5 due to the change of the cam action position, so that the inner wire 61a of the opening / closing cable 61 is loosened. The lower part of the seedling planting body 5 opened to the left and right is closed. Thus, since the seedling planting body 5 is configured to be opened and closed by the opening / closing cable 61, the opening / closing cable 61 has a higher degree of freedom of connection than the conventional opening / closing mechanism using a rod or link, and therefore operates forward and backward. The actuating arm 64 can rotate the left seedling planting body 5L and the right seedling planting body 5R in different directions (left and right directions), and a desired opening / closing amount of the seedling planting body 5 with a small amount of actuation of the actuation arm 64 Can be obtained. Note that the left seedling planting body 5 </ b> L and the right seedling planting body 5 </ b> R are urged to rotate by the spring 65 toward the side where the lower portion of the seedling planting body 5 is closed.

  Respective rotation front end portions (rear end portions) of the upper and lower lift links 52 and 53 of the vertical movement mechanism 4 are connected to a connection member 57 via upper and lower connection shafts 66 and 67, respectively. The connecting member 57 includes a plate 68 that is triangular in a side view on the left and right sides, and the left and right plates 68 sandwich the tip ends of the upper and lower elevating links 52 and 53. A boss 69 extending in the left-right direction is provided. In addition, the connecting shafts 66 and 67 and the boss 69 are arranged in the vicinity of each triangular apex of the plate 68 in a side view, and the boss 69 is arranged on the rear side of the upper and lower connecting shafts 66 and 67. The upper and lower connecting shafts 66 and 67 and the upper and lower elevating links 52 and 53 do not get in the way when a position adjusting shaft 70 described later is slid with respect to the boss 69. The left and right plates 68 are substantially equilateral triangles, and the upper and lower connecting shafts 66 and 67 are turned upside down so that the connecting member 57 can be attached. The boss hole of the boss 69 has a hexagonal shape (polygonal shape). On the other hand, a hexagonal (polygonal) position adjusting shaft 70 extending in the left-right direction is fixedly provided at the base of the seedling planting body 5. Accordingly, the position adjusting shaft 70 is inserted into the boss 69, the seedling planting body 5 is supported by the connecting member 57, and the position adjusting shaft 70 is slid with respect to the boss 69 and moved in the left-right direction. The left and right positions of the body 5 can be changed. The boss 69, the position adjusting shaft 70, the set bolt 71 and the like constitute a planting position changing mechanism A.

  The change in the left and right position of the seedling planting body 5 is equivalent to the arrangement pitch in the seedling supply cup 25 so that the seedling planting body 5 is positioned below the drop supply positions 39 and 40 in accordance with the change of the drop supply positions 39 and 40. The length of the position adjusting shaft 70 is set so that the distance can be changed. That is, the interval between the left and right seedling planting bodies 5 can be changed by an integral multiple (1) of the arrangement pitch in the first and second seedling supply cups 25b, 25c, and the boss 69, the position adjusting shaft 70, etc. The planting position change mechanism which can move the seedling planting body 5 is comprised. The position adjusting shaft 70 can be fixed so as not to move left and right with respect to the boss 69 by a set bolt 71 provided on the boss 69. When the position adjusting shaft 70 is moved left and right, the set bolt 71 is loosened and moved. Yes. The set bolt 71 is provided on the rear side of the boss 69 and the position adjusting shaft 70, and can be easily tightened or loosened from the rear side without the lifting links 52 and 53 being in the way. In addition, the opposing vertex of the hexagonal shape (polygonal shape) of the cross section of the position adjusting shaft 70 is positioned vertically, and the section coefficient for bending in the vertical direction is improved. The strength required to support the cantilever 5 can be obtained. In addition, five grooves 72 serving as a guide for the left and right positions of the seedling planting body 5 are provided on the outer periphery of the position adjusting shaft 70 at an appropriate position, and by aligning the grooves 72 with the ends of the bosses 69, a gap of 500 mm and a length of 550 mm are provided. It can be adjusted to the left and right positions of the seedling planting body 5 between the streak, the 600 mm streak, the 650 mm streak, and the 700 mm streak, so that the position of the seedling planting body 5 can be easily changed.

  In addition, the frame portion of the seedling supply device 24 is connected to the body frame 20 by the reinforcing frame 92 so that the support of the seedling supply device 24 is appropriate, and the seedling supply to each seedling planting body 5 of the seedling supply device 24 is accurately performed. An operator who is configured so as to be able to perform and mounts a mirror 93 that is adjustable in rotation in the middle of the reinforcing frame 92 and is seated on the seat 79 and transplanting the seedlings of each seedling planting body 5 The configuration is such that the state can be confirmed. Therefore, the seedling supply device 24 can appropriately supply the seedlings to each seedling planting body 5 so that the seedlings can be planted properly, and the operator can check the planting state with the mirror 93. It can respond immediately and has good workability.

  Then, while the vertical movement of the seedling planting body 5 is performed for one cycle by the vertical movement mechanism 4, the first and second seedling supply cups 25 b and 25 c are arranged for each arrangement pitch (2 of the seedling supply cup 25 in a row). Pieces: Since the pitch P1, which is the distance between the centers of the adjacent cups 25, is 80 mm, it moves around 160 mm). For example, when the 500 mm strip shown in FIG. 5 and FIG. 6 is set, the seedling planting body 5 has the timing of opening the bottom lid 25a of the seedling supply cup 25 at the drop supply positions 39 and 40. It is set to be when it rises to the very bottom. At this time, the first moving support 42e for determining the left drop supply position 39 is set at a position marked as 500 mm between the stripes, and the second moving support 42f for determining the right drop supply position 40 is also set between the stripes. Set to the position marked 500mm. Thereby, the seedling supply cup 25 can supply the seedlings simultaneously without passing the seedling supply leakage to the two seedling planting bodies 5 while passing through the upper part of the two seedling planting bodies 5 in series. It will be possible to supply seedlings to the two seedling planting bodies 5 without leaving a seedling supply cup 25 that has not been supplied with seedlings after passing over the planting body 5, and the seedling supply operation can be performed with a margin, In addition, seedlings can be reliably supplied to the two seedling planting bodies 5. At this time, the bottom cover 25a of the seedling supply cup 25 with respect to the left seedling planting body 5 opens at the center position of the width L1 of the upper end opening of the seedling guide 51 of the seedling planting body 5, and proper seedling supply and planting can be performed. . The bottom cover 25a of the seedling supply cup 25 with respect to the right seedling planting body 5 opens at a position slightly before the center position of the width L1 of the upper end opening of the seedling guide 51 of the seedling planting body 5, but the upper end opening of the seedling guide 51 The width L1 of the portion is wider than twice the pitch P1 of the seedling supply cup 25 of the seedling supply device 24 (that is, wider than the distance L2 between the two ends of the two seedling supply cups 25 arranged side by side). Since it is configured, it is possible to supply and plant appropriate seedlings.

  Next, when the 550 mm strip shown in FIG. 7 and FIG. 8 is set, the seedling planting body 5 is directly below the seedling supply cup 25 when the bottom lid 25a of the seedling supply cup 25 opens at the drop supply positions 39 and 40. It is set to be when it rises to the maximum. At this time, the first moving support 42e for determining the left drop supply position 39 is set at a position marked as 550 mm between the stripes, and the second moving support 42f for determining the right drop supply position 40 is also set between the stripes. Set to the position marked 550 mm. Thereby, the seedling supply cup 25 can supply the seedlings simultaneously without passing the seedling supply leakage to the two seedling planting bodies 5 while passing through the upper part of the two seedling planting bodies 5 in series. It will be possible to supply seedlings to the two seedling planting bodies 5 without leaving a seedling supply cup 25 that has not been supplied with seedlings after passing over the planting body 5, and the seedling supply operation can be performed with a margin, In addition, seedlings can be reliably supplied to the two seedling planting bodies 5. At this time, the bottom cover 25a of the seedling supply cup 25 with respect to the left seedling planting body 5 opens at a position slightly past the center position of the width L1 of the upper end opening of the seedling guide 51 of the seedling planting body 5, The width L1 of the upper end opening is wider than twice the pitch P1 of the seedling supply cup 25 of the seedling supply device 24 (that is, wider than the interval L2 between the bottom ends of the two seedling supply cups 25 arranged side by side) ), So that appropriate seedlings can be supplied and planted. The bottom cover 25a of the seedling supply cup 25 with respect to the right seedling planting body 5 opens at a position slightly before the center position of the width L1 of the upper end opening of the seedling guide 51 of the seedling planting body 5, but the upper end opening of the seedling guide 51 The width L1 of the portion is wider than twice the pitch P1 of the seedling supply cup 25 of the seedling supply device 24 (that is, wider than the distance L2 between the two ends of the two seedling supply cups 25 arranged side by side). Since it is configured, it is possible to supply and plant appropriate seedlings.

  Next, when the 600 mm strip shown in FIG. 9 and FIG. 10 is set, the seedling planting body 5 is directly below the seedling supply cup 25 when the bottom lid 25a of the seedling supply cup 25 opens at the drop supply positions 39 and 40. It is set to be when it rises to the maximum. At this time, the first moving support 42e for determining the left drop supply position 39 is set at a position marked with 600 mm between the stripes, and the second moving support 42f for determining the right drop supply position 40 is also set between the stripes. Set to the position marked 600mm. Thereby, the seedling supply cup 25 can supply the seedlings simultaneously without passing the seedling supply leakage to the two seedling planting bodies 5 while passing through the upper part of the two seedling planting bodies 5 in series. It will be possible to supply seedlings to the two seedling planting bodies 5 without leaving a seedling supply cup 25 that has not been supplied with seedlings after passing over the planting body 5, and the seedling supply operation can be performed with a margin, In addition, seedlings can be reliably supplied to the two seedling planting bodies 5. At this time, the bottom cover 25a of the seedling supply cup 25 with respect to the left seedling planting body 5 opens at a position slightly before the center position of the width L1 of the upper end opening of the seedling guide 51 of the seedling planting body 5, but the seedling guide 51 The width L1 of the upper end opening of the seedling is wider than twice the pitch P1 of the seedling supply cup 25 of the seedling supply device 24 (that is, wider than the distance L2 between both ends of the bottoms of the two seedling supply cups 25 arranged side by side) Width), it is possible to supply and plant proper seedlings. The bottom lid 25a of the seedling supply cup 25 with respect to the right seedling planting body 5 opens at the center position of the width L1 of the upper end opening of the seedling guide 51 of the seedling planting body 5, and proper seedling supply and planting can be performed.

  Next, when the length of 650 mm shown in FIGS. 11 and 12 is set, the seedling planting body 5 is directly below the seedling supply cup 25 when the bottom lid 25a of the seedling supply cup 25 is opened at the drop supply positions 39 and 40. It is set to be when it rises to the maximum. At this time, the first moving support 42e for determining the left drop supply position 39 is set at a position marked with a gap of 650 mm, and the second moving support 42f for determining the right drop supply position 40 is also set between the stripes. Set to the position marked 650 mm. Thereby, the seedling supply cup 25 can supply the seedlings simultaneously without passing the seedling supply leakage to the two seedling planting bodies 5 while passing through the upper part of the two seedling planting bodies 5 in series. It will be possible to supply seedlings to the two seedling planting bodies 5 without leaving a seedling supply cup 25 that has not been supplied with seedlings after passing over the planting body 5, and the seedling supply operation can be performed with a margin, In addition, seedlings can be reliably supplied to the two seedling planting bodies 5. At this time, the bottom cover 25a of the seedling supply cup 25 with respect to the left seedling planting body 5 opens at the center position of the width L1 of the upper end opening of the seedling guide 51 of the seedling planting body 5, and proper seedling supply and planting can be performed. . The bottom cover 25a of the seedling supply cup 25 with respect to the right seedling planting body 5 opens at a position slightly before the center position of the width L1 of the upper end opening of the seedling guide 51 of the seedling planting body 5, but the upper end opening of the seedling guide 51 The width L1 of the portion is wider than twice the pitch P1 of the seedling supply cup 25 of the seedling supply device 24 (that is, wider than the distance L2 between the two ends of the two seedling supply cups 25 arranged side by side). Since it is configured, it is possible to supply and plant appropriate seedlings.

  Next, when the length of 700 mm shown in FIGS. 13 and 14 is set, the time when the bottom cover 25a of the seedling supply cup 25 is opened at the drop supply positions 39 and 40 is immediately below the seedling supply cup 25. It is set to be when it rises to the maximum. At this time, the first moving support 42e for determining the left drop supply position 39 is set at a position marked as 700 mm between the stripes, and the second moving support 42f for determining the right drop supply position 40 is also set between the stripes. Set to the position marked 700mm. Thereby, the seedling supply cup 25 can supply the seedlings simultaneously without passing the seedling supply leakage to the two seedling planting bodies 5 while passing through the upper part of the two seedling planting bodies 5 in series. It will be possible to supply seedlings to the two seedling planting bodies 5 without leaving a seedling supply cup 25 that has not been supplied with seedlings after passing over the planting body 5, and the seedling supply operation can be performed with a margin, In addition, seedlings can be reliably supplied to the two seedling planting bodies 5. At this time, the bottom cover 25a of the seedling supply cup 25 with respect to the left seedling planting body 5 opens at a position slightly past the center position of the width L1 of the upper end opening of the seedling guide 51 of the seedling planting body 5, The width L1 of the upper end opening is wider than twice the pitch P1 of the seedling supply cup 25 of the seedling supply device 24 (that is, wider than the interval L2 between the bottom ends of the two seedling supply cups 25 arranged side by side) ), So that appropriate seedlings can be supplied and planted. The bottom cover 25a of the seedling supply cup 25 with respect to the right seedling planting body 5 opens at a position slightly before the center position of the width L1 of the upper end opening of the seedling guide 51 of the seedling planting body 5, but the upper end opening of the seedling guide 51 The width L1 of the portion is wider than twice the pitch P1 of the seedling supply cup 25 of the seedling supply device 24 (that is, wider than the distance L2 between the two ends of the two seedling supply cups 25 arranged side by side). Since it is configured, it is possible to supply and plant appropriate seedlings.

  Even when the spacing between the planting lines is changed in this way, the width L1 of the upper end opening of the seedling guide 51 is wider than twice the pitch P1 of the seedling supply cup 25 of the seedling supply device 24 (that is, two arranged side by side). The width of the seedling supply cup 25 is wider than the distance L2 between both ends of the seedling supply cup 25), so that the seedling supply device 25 can properly supply seedlings from the seedling supply cup 25 to the seedling planting body 5, The planting accuracy can be maintained. Further, the spacing between the planting strips can be easily changed by moving the seedling planting body 5 in the left-right direction and changing the drop supply positions 39 and 40. In particular, even if the spacing between the planting strips is changed, the left and right drop supply positions 39 and 40 can be changed with a simple configuration of changing the positions of the first moving support 42e and the second moving support 42f, and the rotation timing can be changed. The rotation position (phase) of the seedling container 25 by the mechanism can be changed without changing the rotation of the chain 34 and the seedling supply cup 25 with a simple configuration of changing the rotational phase of the winding sprocket 29 relative to the driven sprocket 35. It becomes easy to change between clauses. Note that the position of the seedling planting body 5 and the pressure-reducing wheel 73 can be easily changed because only the movable portions of the position adjusting shaft 70 and the support frame 76 are slid.

  Moreover, as shown in the drawing, the left and right pressure-reducing wheels 73 and 73 for crushing the soil around the seedling while covering the surrounding area of the planted seedling are arranged and provided respectively immediately behind the right and left seedling planting bodies 5. The roots of the seedlings that have been planted on the bushes are crushed from both the left and right sides to promote rooting. It is configured such that it is pivotally mounted on the lower portion of a lot 74b that is inserted vertically into a lock shaft 74a that is provided laterally on the machine body frame 20. The lock shaft 74a vertically penetrates the two lots 74b having the pressure-reducing wheel 73 in the lower part. The lock shaft 74a is housed by moving the pressure-reducing wheel 73 upward and in a state where it can freely move (slide) up and down. It can be switched to a state where it is fixed at the position. The left and right pressure-reducing wheels 73 are mounted on a support frame 76 whose front end is rotatably supported on the body frame 20 so as to be freely rotatable.

  That is, in the state of the solid line in FIG. 1, the left and right lots 74b and 74b can freely move up and down in the through hole of the lock shaft 74a, so that the left and right pressure reducing wheels 73 and 73 freely move up and down. The left and right lots 74b and 74b are provided with kerfs (parts with a reduced shaft diameter) 74c and 74c in the middle thereof, and grip portions 74d and 74d are provided at the upper ends of the left and right lots 74b and 74b. Therefore, when the operator grasps the grip portion 74d and pulls the lot 74b upward, the lot 74b moves upward in the through hole of the lock shaft 74a, and the pressure reducing wheel 73 moves upward to the storage position. At that time, the lot 74b is hooked on the upper end portion of the through hole of the lock shaft 74a by hooking the groove 74c of the lot 74b, so that the lot 74b is locked at the upper position and fixed so as not to fall downward. It can be stored upwards when turning. When turning the aircraft, the operator pulls both the left and right lots 74b, 74b upward and stores the left and right pressure-reducing wheels 73, 73 upward. It can be swung from the top and can be turned easily. Further, if an operation member for pulling up both the left and right lots 74b and 74b is provided so that the left and right pressure-reducing wheels 73 and 73 can be accommodated together by the operation member, the workability at the time of turning is further improved. Get better.

  Further, a seat 79 facing backward is provided above the bonnet 78 so as to face the seedling supply device 24 side, and a flat step 80 for placing a foot between the seedling supply device 24 is provided. The seat 23 is supported by the airframe via a support frame 81 that extends upward through one of the left and right sides (right side) of the bonnet 78. A cylindrical parasol support member is provided on the support frame 81, and sunshade parasols and umbrellas are inserted and fixed to the cylindrical parasol support member so that the worker sitting on the seat 23 is not exposed to sunlight or rain. Thus, the work environment can be improved.

  The step 80 includes a main step 82 disposed between the seat 79 and the seedling supply device 24 in plan view of the body, and sub-steps 83 provided on the left and right sides of the seat 79 and the bonnet 78. The sub-step 83 extends forward and backward from the front end portion of the airframe to near the main step 82, the front portion 83a is configured to be one step lower than the rear portion 83b, and allows an operator to get on and off from the front end portion of the airframe. It is configured. An elevating mechanism (arm 11, rolling cylinder 15, rod 14, etc.) for elevating the wheel (rear wheel) 7 can be arranged below the rear part 83 b which is the upper stage of the sub-step 83, and the space of the fuselage can be reduced. The aircraft is made compact by making effective use. Further, a chain transmission case 9 serving as a traveling transmission case that rotates up and down can be disposed below the rear portion of the substep 83 in accordance with a tread change of the wheel (rear wheel) 7. In addition, a rising portion 82a is provided at the front end of the main step 82 so as to be inclined upward and the operator's foot sitting on the seat 79 contacts the vertical movement mechanism 4 of the seedling planting device 23 by the rising portion 82a. Protects against this. Further, by positioning the rising portion 82a below the seedling supply device 24, the longitudinal length of the machine body can be shortened. Moreover, the main step 82 is provided with the rising portion 82a, whereby the strength is improved. It should be noted that at the rising portion 82a, the driving of the left and right rear wheels 7, the seedling planting device 23, and the seedling feeding device 24 for turning on and off the main clutch lever 84 and the left and right rear wheels 7 can be cut off. Left and right side clutch pedals 85 are provided so that an operator in the seat 79 can stop the aircraft and correct the traveling direction of the aircraft.

  In the above description, the sub-step 83 is provided on both the left and right sides. However, the sub-step 83 may be provided on only one of the left and right sides. In this case, the sub-step 83 may be provided on the side without the support frame 81 (left side). If the step 83 is provided, the support frame 81 can easily get on and off by the sub-step 83 without obstructing.

  A front end of the airframe between the left and right front wheels 6 is provided with a front end sensor 86 that contacts the upper surface of the front U and detects the end of the front U. The front end sensor 86 is free from wrinkles due to the forward movement of the front body. However, it is configured to detect that the terminal end of the bag is reached by reaching the place and not sensing the upper surface of the bag. Based on detection of the heel end by the heel end sensor 86, the main clutch is automatically disengaged to stop the driving of the left and right rear wheels 7, the driving of the seedling planting device 23 and the seedling supplying device 24, and the machine body is stopped. At the same time, an alarm (for example, a buzzer or the like) is issued to notify the operator. As a result, the worker sitting on the seat 79 faces backward with respect to the advancing direction of the aircraft, and since it concentrates on the seedling replenishment work, it is difficult to confirm the front of the aircraft and does not notice that the aircraft has reached the end of the heel. Although there is a risk of causing an accident such as a collision with surrounding structures, the dredge end sensor 86 automatically stops the aircraft at the end of the dredge and notifies the end of the dredge by an alarm. The seedling replenishment work can be concentrated on the seedling supply device 24 without worrying about the situation in front of the machine body and the position of the end of the heel, thereby improving the planting work efficiency. The heel end sensor 86 is disposed at a position to the right of the left and right center of the aircraft (tread of the left and right wheels 6 and 7), and the vertical movement accompanying the vertical movement of the left rear wheel 7 by the rolling cylinder 11 is small. The upper surface of the ridge can be detected accurately and stably. In addition, the heel end sensor 86 is a left-right position (a right front pressure wheel 15 and a seedling planting position on the right side) that avoids the front pressure wheel 15 and the seedling planting position of the seedling planting body 5 for controlling the height of the aircraft to the ground. Since it is provided on the left side), the soil at the planting position is not roughened and the planting accuracy is not lowered.

  Also, near the steering handle 2, there are a main clutch lever 87 for manually turning on and off the left and right rear wheels 7, the seedling planting device 23 and the seedling feeding device 24, a seedling planting device 28 and a seedling feeding device 32. And a planting operation lever 88 for manually turning on and off only the drive. The planting operation lever 88 can be used to operate the lifting hydraulic cylinder 14 to manually lift and lower the machine body. Then, a sensor (detection means) for detecting the operation position of the planting operation lever 88 is provided, and only when the seedling planting device 23 and the seedling supply device 24 are operated in the drive state by the planting operation lever 88, It is configured such that the automatic stop control and alarm of the airframe are activated by the aforementioned heel end sensor 86. As a result, the automatic stop control and alarm of the aircraft can be activated only during planting work, and the aircraft endless sensor 86 is unnecessarily detected by the heel end sensor 86 not detecting the upper surface of the heel when traveling or turning at the heel end. Can be prevented, and the operability is improved. A seating sensor for detecting that an operator is seated on the seat 79 is provided in place of or in combination with the above-described automatic stop control of the machine and the operation of the alarm by the planting operation lever 88. Only when the person is seated, the automatic stop control and warning of the aircraft may be activated. Moreover, it can be set as the structure which a warning is act | operated first by the detection of the end of the hull by the hail end sensor 56, and the body stops automatically after the predetermined time (several seconds later). The airframe may be automatically stopped by stopping the engine 3.

  Further, when the planting operation lever 88 is operated to raise the machine body and turn on the heel, when the heel end sensor 86 is moved up and stored, the heel end sensor 86 is not in the way of turning. It can be turned easily.

  The heel end sensor 86 has a configuration in which a rotation roller 86b is rotatably provided at the lower end of a rotation arm 86a pivotally supported on the base of the machine body. A lower rotation restricting rod is provided at a position below the rotation arm 86a so that the rod end sensor 86 (rotating roller 86b) does not rotate downward more than necessary. When the planting operation lever 88 is operated to raise the machine body in cooperation with the lever 88, the downward rotation restricting rod is moved upward via the operation wire to contact the lower portion of the rotation arm 86a. Thus, the rotating arm 86a is rotated upward to the storage position. Thus, by using the downward rotation restricting rod provided so that the rod end sensor 86 (rotating roller 86b) does not rotate downward more than necessary as a member for changing the rod end sensor 86 to the storage position, the machine body The configuration is simple and can be configured at low cost.

  On the left and right sides of the seat 79, left and right seedling platforms 89 are arranged. The left and right seedling mounting platforms 89 are each provided with a three-stage inner seedling mounting portion 101a on the inner side of the machine body and an outer seedling of one stage on the outer side of the machine body above a seedling support frame 100 provided with a base that can be rotated and fixed. The mounting part 101b is provided. The outer seedling mounting portion 101b outside the machine body is arranged at the same height as the uppermost inner seedling mounting portion 101a among the three stages of the inner seedling mounting portions 101a, and is outside on the support shaft 102. It is configured to be freely switchable between an overhanging use state and a folded storage state positioned on the uppermost inner seedling mounting portion 101a by being turned inward. Further, when the outer seedling mounting portion 101b is turned inward about the support shaft 102 to be in the folded storage state positioned on the uppermost inner seedling mounting portion 101a, the outer end portion 101b ′ of the outer seedling mounting portion 101b is The uppermost inner seedling placement portion 101a is configured to be located inside the seedling placement portion with respect to the outer end portion 101a ′.

  Therefore, four seedling trays T can be placed on each of the left and right seedling placing platforms 89 in a state where the outer seedling placing portion 101b is extended outward. Then, the seedling tray T emptied by the seedling transplanting operation is placed on the uppermost inner seedling placing portion 101a (even if one seedling tray T is placed, a plurality of seedling trays T are stacked. If the outer seedling mounting portion 101b is turned inward around the support shaft 102 to be in the folded storage state positioned on the uppermost inner seedling mounting portion 101a, the outer seedling mounting portion 101b The outer end portion 101b ′ can hold the empty seedling tray T placed on the uppermost inner seedling mounting portion 101a from the upper side to prevent the empty seedling tray T from falling or scattering. At this time, since the outer end portion 101b ′ of the outer seedling placement portion 101b is configured to be located inside the seedling placement portion with respect to the outer end portion 101a ′ of the uppermost inner seedling placement portion 101a, an empty seedling tray Whether one T or a plurality of T is stacked can be reliably pressed by the outer end portion 101b ′ of the outer seedling mounting portion 101b.

  Further, when loading into a truck or storing in a warehouse, the seat 79 is rotated forward around the support shaft 110, and the outer seedling mounting portion 101b is rotated inward about the support shaft 102. It is made into the folding storage state located on the innermost seedling mounting part 101a of the uppermost stage, the fixation of the seedling support frame 100 is cancelled | released, the seedling support frame 100 is rotated, and the right and left seedling mounting base 89 is in the body left-right width. Fix it so that it fits roughly. In this way, the body width can be reduced with a simple configuration, loading into a truck and storage in a warehouse are easy, and workability is good.

  Further, when the seat 79 is rotated forward about the support shaft 110, the seat 79 contacts the seedling stand 120 fixed to the upper part of the seedling supply device 24. The seedling supply cup 25 is prevented from touching, so that the seedling supply device 24 is erroneously operated (the seedling supply cup 25 is moved) while the seat 79 is rotated forward around the support shaft 110. However, the seedling supply device 24 is not damaged, and the machine can be prevented from being damaged.

In addition, although the above demonstrated the structure of 2 row planting, you may apply to the structure of 3 or more rows.
Moreover, although the above demonstrated the structure which staggers a plurality of lines, you may apply to the structure which plantes a tree line, such as the structure which made the operation | movement timing of the right and left seedling planting body the same, for example.

Finally, another embodiment of the seedling planting device 23 shown in FIG. 18 will be described.
The vertical movement mechanism 4 of the seedling planting body 5 is provided on both right and left sides of the planting transmission case 22. Specifically, the upper and lower lift links 52, 53 are connected to the seedling planting body 5 by attaching the front part to the shaft projecting to the left and right sides of the planting transmission case 22 so that the front part can freely rotate up and down. , A drive shaft 54 that rotates from the side of the planting transmission case 22, a drive arm 55 that is attached so as to rotate integrally with the drive shaft 54, a rotation outer peripheral side end portion of the drive arm 55, and the aforementioned An interlocking arm 56 is rotatably connected to the upper lifting link 52. The rear end portions (rotating tip portions) of the upper and lower elevating links 52 and 53 are pivotally attached to and connected to the connecting member 57. The seedling planting body 5 is attached to the connecting member 57.

  Therefore, when the drive arm 55 is driven and rotated by the rotation of the drive shaft 54, the elevating links 52 and 53 move up and down, and the left and right seedling planting bodies 5 move up and down. The lower end portion of the seedling planting body 5 is positioned above the field scene at the ascending position of the vertical movement, and the lower end portion of the seedling planting body 5 is positioned below the field scene at the descending position.

  Further, the rotation fulcrum shaft 58 of the upper elevating link 52 is provided at a position that is eccentric from the center axis of the output shaft 59 at the tip of the planting output shaft 59 that projects from the planting transmission case 22 and rotates. The rotation of the planting output shaft 59 moves around the axis of the planting output shaft 59 while rotating with an eccentric amount (the distance between the pivot fulcrum shaft 58 and the axis of the planting output shaft 59) as a radius. When the upper fulcrum shaft 58 moves up and down during the up-and-down movement of the upper elevating link 52, the seedling planting body 5 is tilted back and forth during the up-and-down movement, and the seedling planting body 5 is looped in a side view. It is configured to move up and down along the operating locus. Note that the left seedling planting body 5 </ b> L and the right seedling planting body 5 </ b> R are urged to rotate by the spring 65 toward the side where the lower portion of the seedling planting body 5 is closed.

  Respective rotation front end portions (rear end portions) of the upper and lower lift links 52 and 53 of the vertical movement mechanism 4 are connected to a connection member 57 via upper and lower connection shafts 66 and 67, respectively. The connecting member 57 includes a plate 68 that is triangular in a side view on the left and right sides, and the left and right plates 68 sandwich the tip ends of the upper and lower elevating links 52 and 53. A boss 69 extending in the left-right direction is provided. In addition, the connecting shafts 66 and 67 and the boss 69 are arranged in the vicinity of each triangular apex of the plate 68 in a side view, and the boss 69 is arranged on the rear side of the upper and lower connecting shafts 66 and 67. The upper and lower connecting shafts 66 and 67 and the upper and lower elevating links 52 and 53 do not get in the way when a position adjusting shaft 70 described later is slid with respect to the boss 69. The boss hole of the boss 69 has a hexagonal shape (polygonal shape). On the other hand, a hexagonal (polygonal) position adjusting shaft 70 extending in the left-right direction is fixedly provided at the base of the seedling planting body 5. Accordingly, the position adjusting shaft 70 is inserted into the boss 69, the seedling planting body 5 is supported by the connecting member 57, and the position adjusting shaft 70 is slid with respect to the boss 69 and moved in the left-right direction. The left and right positions of the body 5 can be changed. The position adjusting shaft 70 can be fixed so as not to move left and right with respect to the boss 69 by a set bolt 71 provided on the boss 69. When the position adjusting shaft 70 is moved left and right, the set bolt 71 is loosened and moved. Yes.

  In this configuration for changing the left and right position of the seedling planting body 5, the position adjustment shaft 70 is provided on both the left and right sides of the plate 68 on the vertical movement mechanism 4 side. Can be supported in a stable state, and seedling planting work can be performed well. Further, since the position adjusting shaft 70 is disposed on the lifting links 52 and 53 side of the connecting shafts 66 and 67, the front and rear length of the seedling planting device 23 is shortened, and a compact seedling planting device 23 can be configured.

Further, another embodiment of the seedling planting device 23 shown in FIG. 19 will be described.
The vertical movement mechanism 4 of the seedling planting body 5 is provided on both right and left sides of the planting transmission case 22. Specifically, the upper and lower lift links 52, 53 are connected to the seedling planting body 5 by attaching the front part to the shaft projecting to the left and right sides of the planting transmission case 22 so that the front part can freely rotate up and down. , A drive shaft 54 that rotates from the side of the planting transmission case 22, a drive arm 55 that is attached so as to rotate integrally with the drive shaft 54, a rotation outer peripheral side end portion of the drive arm 55, and the aforementioned An interlocking arm 56 is rotatably connected to the upper lifting link 52. The rear end portions (rotating tip portions) of the upper and lower elevating links 52 and 53 are pivotally attached to and connected to the connecting member 57. The seedling planting body 5 is attached to the connecting member 57.

  Therefore, when the drive arm 55 is driven and rotated by the rotation of the drive shaft 54, the elevating links 52 and 53 move up and down, and the left and right seedling planting bodies 5 move up and down. The lower end portion of the seedling planting body 5 is positioned above the field scene at the ascending position of the vertical movement, and the lower end portion of the seedling planting body 5 is positioned below the field scene at the descending position.

  Further, the rotation fulcrum shaft 58 of the upper elevating link 52 is provided at a position that is eccentric from the center axis of the output shaft 59 at the tip of the planting output shaft 59 that projects from the planting transmission case 22 and rotates. The rotation of the planting output shaft 59 moves around the axis of the planting output shaft 59 while rotating with an eccentric amount (the distance between the pivot fulcrum shaft 58 and the axis of the planting output shaft 59) as a radius. When the upper fulcrum shaft 58 moves up and down during the up-and-down movement of the upper elevating link 52, the seedling planting body 5 is tilted back and forth during the up-and-down movement, and the seedling planting body 5 is looped in a side view. It is configured to move up and down along the operating locus. Note that the left seedling planting body 5 </ b> L and the right seedling planting body 5 </ b> R are urged to rotate by the spring 65 toward the side where the lower portion of the seedling planting body 5 is closed.

  Respective rotation front end portions (rear end portions) of the upper and lower lift links 52 and 53 of the vertical movement mechanism 4 are connected to a connection member 57 via upper and lower connection shafts 66 and 67, respectively. The connecting member 57 includes a plate 68 that is triangular in a side view on the left and right sides, and the left and right plates 68 sandwich the tip ends of the upper and lower elevating links 52 and 53. The left-right boss 69a is provided. In addition, the connecting shafts 66 and 67 and the boss 69a are arranged near the triangular apexes of the plate 68 in a side view, and the boss 69a is arranged on the rear side of the upper and lower connecting shafts 66 and 67. The upper and lower connecting shafts 66 and 67 and the upper and lower elevating links 52 and 53 do not get in the way when a position adjusting shaft 70a described later is slid with respect to the boss 69a. The boss hole of the boss 69a has a hexagonal shape (polygonal shape). On the other hand, a hexagonal (polygonal) position adjustment shaft 70a extending in the left-right direction is fixedly provided at the base of the seedling planting body 5. Therefore, the position adjusting shaft 70a is inserted into the boss 69a, the seedling planting body 5 is supported by the connecting member 57, and the position adjusting shaft 70a is slid with respect to the boss 69a to move in the left-right direction. The left and right positions of the body 5 can be changed. Furthermore, a hexagonal (polygonal) rear position adjusting shaft 70b is provided at the fixing portion between the position adjusting shaft 70a and the seedling planting body 5, and a hexagonal shape (externally fitted to the rear position adjusting shaft 70b ( The seedling planting body 5 is fixed to the rear boss 69b of the polygonal shape. The position adjusting shaft 70a and the rear position adjusting shaft 70b can be fixed so as not to move left and right with respect to the boss 69a and the rear boss 69b by the set bolt 71a and the rear set bolt 71b provided on the boss 69a and the rear boss 69b, respectively. When moving left and right, the set bolt 71a and the rear set bolt 71b are loosened and moved.

  In this configuration for changing the left-right position of the seedling planting body 5, the position adjusting shaft 70 a is provided on both the left and right sides of the plate 68 on the vertical movement mechanism 4 side. Can be supported in a stable state, and seedling planting work can be performed well. Further, since the position adjusting shaft 70a is arranged on the lifting links 52 and 53 side of the connecting shafts 66 and 67, the front and rear length of the seedling planting device 23 is shortened, and a compact seedling planting device 23 can be configured. Furthermore, since the left and right positions of the seedling planting body 5 can be changed in two stages by the position adjusting shaft 70a and the rear position adjusting shaft 70b arranged in parallel in the front and rear directions, the width of change between the stripes can be increased with a small and compact configuration. can do.

  The seedling planting machine of the present invention is not limited to vegetable seedlings, and can be used as a seedling planting machine for planting other seedlings and bulbs. Moreover, although the riding-type seedling planting machine has been described in detail, a walking-type seedling planting machine may be used.

Claims (5)

A seedling planting body (5) that moves up and down by a vertical movement mechanism (4) to plant seedlings in a field is provided, and a seedling supply device (24) that supplies seedlings to the seedling planting body (5) accommodates seedlings. A plurality of seedling containers (25) and the plurality of seedling containers (25) are arranged in a loop shape at a predetermined arrangement pitch (P1), and sequentially circulate above each seedling planting body (5). A moving mechanism (26) to be moved, and when the moving mechanism (26) moves the seedling container (25) to the drop supply position (39, 40) which is the upper position of the seedling planting body (5), the seedling container (25) ) And a seedling drop supply mechanism (27) for dropping and supplying the seedlings contained in the seedling planting body (5) moved up by the vertical movement mechanism (4) to the right and left of the seat (79). The seedling mounting stand (89) includes a plurality of upper and lower inner seedling mounting portions (101a) on the inner side of the body, and the outer side of the body The outer seedling placing part (101b) is provided at the same height as the uppermost inner seedling placing part (101a) among the upper and lower inner seedling placing parts (101a). A seedling transplanter configured to be able to be folded on the inner seedling placement portion (101a) by rotating the outer seedling placement portion (101b) inward . The seedling planting machine according to claim 1, wherein the seat (79) is rotated and stored above the seedling supply device (24) . 3. The structure according to claim 2, wherein the left and right seedling mounting bases (89) are rotated and stored in the left and right in the state where the seat (79) is rotated and stored above the seedling supply device (24). Seedling machine. The seedling planting body (5) is provided on each of the left and right sides, and the seedling supply device (24) is configured to supply seedlings to the left and right seedling planting bodies (5) at the left and right fall supply positions (39, 40). A first seedling container (25b) that stores seedlings to be supplied in a drop supply position (39) and a second seedling container (25c) that stores seedlings to be supplied in a drop supply position (40). Provided separately, the first and second seedling containers (25b, 25c) reach the respective drop supply positions (39, 40) by the circular movement by the moving mechanism (26), and the right and left seedling planting bodies (5) A planting position changing mechanism (A) for moving each separately and a drop position changing mechanism (B) for changing the drop supply position (39, 40) are provided, and the drop supply from the seedling supply device (24) is provided. Seedling guide (5) that receives the seedlings and guides them into the seedling planting body (5) ) At the top of the seedling planting body (5), and the width (L1) of the upper end opening of the seedling guide (51) is twice the pitch (P1) of the seedling container (25) of the seedling feeding device (24). The seedling transplanter according to any one of claims 1 to 3, wherein the seedling transplanter is configured to have a wider width . The vertical movement mechanism (4) is configured to include upper and lower lifting links (52, 53), and the upper and lower lifting links (52, 53) are pivotally connected to upper and lower connecting shafts (66, 67). The planting position changing mechanism (A) is coupled to the first position adjusting shaft (70a) that slides relative to the coupling member (57) and moves in the left-right direction. And a second position adjusting shaft (70b) that moves integrally with the position adjusting shaft (70a) in the left-right direction, and moves the seedling planting body (5) in the left-right direction along the second position adjusting shaft (70b). The seedling transplanter according to claim 4 , wherein the first position adjusting shaft (70a) is supported so as to be supported and arranged closer to the lift link (52, 53) than the upper and lower connecting shafts (66, 67) .

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