Transplanter

Abstract

To provide a transplanter capable of easily avoiding collisions of a spare seedling tray with obstacles and also facilitating the placement of seedlings on the spare seedling tray.SOLUTION: A transplanter includes: a traveling body; a support frame provided on the traveling body; and a spare seedling tray 20 provided to extend in the front-rear direction. The spare seedling tray 20 is supported to be movable in a position relative to the support frame in the front-rear direction.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a transplanter equipped with a spare seedling tray. [Background technology]

[0002] As an example of a conventional transplanter, there is a rice transplanter that travels on a travel path consisting of multiple straight linear travel paths that extend approximately parallel to one another in a field and a U-shaped rotating travel path that connects the straight linear travel paths, as described in Patent Document 1. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2023-001180 A Summary of the Invention [Problem to be solved by the invention]

[0004] In some of these rice transplanters, when the spare seedling tray is in a state in which it is extended in the front-rear direction, the front end of the spare seedling tray is located forward of the front end of the traveling vehicle body. In farm fields, there may be obstacles such as water inlets, and when the spare seedling tray is in a state in which it is extended in the front-rear direction, there is a risk that the front part of the spare seedling tray will collide with the obstacle.

[0005] On the other hand, if the spare seedling tray is configured with a short length in the front-to-rear direction, for example, the distance from the front to the spare seedling tray becomes far, making it difficult to place seedlings on the spare seedling tray from the front, which is an inconvenience.

[0006] Therefore, the object of the present invention is to provide a transplanter that makes it easy to avoid collision of the spare seedling tray with obstacles and makes it easy to place seedlings on the spare seedling tray. [Means for solving the problem]

[0007] The transplanting machine of the present invention includes a traveling vehicle body, a support frame provided on the traveling vehicle body, and a spare seedling stand provided so as to extend in the front-rear direction. The spare seedling stand is supported by the support frame so as to be relatively movable in the front-rear direction.

[0008] According to the present invention, by moving the spare seedling stand backward, the front end of the spare seedling stand approaches the traveling machine body, or the front end of the spare seedling stand is located behind the front end of the traveling machine body. Therefore, it is possible to easily avoid the collision of the spare seedling stand with an obstacle during traveling. Further, by moving the spare seedling stand forward, it is possible to easily place the seedlings on the spare seedling stand.

[0009] In the present invention, the spare seedling stand has a front spare seedling stand and a rear spare seedling stand. The front spare seedling stand is located in front of the rear spare seedling stand, and is configured to be switchable between a deployed state in which the front spare seedling stand and the rear spare seedling stand are arranged in the front-rear direction and a stored state in which the front spare seedling stand and the rear spare seedling stand are arranged in the vertical direction. The rear spare seedling stand is fixed to the support frame, and it is preferable that the front spare seedling stand is supported by the rear spare seedling stand so as to be relatively movable in the front-rear direction in the deployed state.

[0010] According to this configuration, it is possible to switch between the deployed state and the stored state by changing the position of only the front spare seedling stand without moving the spare seedling stand other than the front spare seedling stand, such as the rear spare seedling stand. As a result, it is possible to easily switch between the deployed state and the stored state.

[0011] In the present invention, it is preferable that the spare seedling stand is composed of a plurality of spare seedling stands, and the plurality of spare seedling stands include a first spare seedling stand supported by the support frame and a second spare seedling stand supported by the first spare seedling stand.

[0012] According to this configuration, the seedling stand for spare seedlings can not only move in the front-rear direction, but also remove the second seedling stand for spare seedlings or fold the second seedling stand for spare seedlings, so that the front end of the seedling stand for spare seedlings is located behind the front end of the traveling machine body.

[0013] In the present invention, it is preferable that a rail extending in the front-rear direction is fixed to the support frame, and the seedling stand for spare seedlings is movably provided on the rail.

[0014] According to this configuration, it is possible to configure the seedling stand for spare seedlings to be movable in the front-rear direction with a simple configuration of moving on the rail.

[0015] In the present invention, it is preferable that the seedling stand for spare seedlings has a rotating body that rotates on the rail.

[0016] According to this configuration, when moving the seedling stand for spare seedlings in the front-rear direction by rotating the rotating body provided on the rail, it is possible to move it easily with a small force.

[0017] In the present invention, it is preferable that the seedling stand for spare seedlings has a sliding member that slides on the rail.

[0018] According to this configuration, a rotating body or the like becomes unnecessary, and it is possible to reduce the number of parts.

[0019] In the present invention, it is preferable that a dropout prevention mechanism for preventing the seedling stand for spare seedlings from dropping off the rail is provided.

[0020] According to this configuration, it is possible to prevent the seedling stand for spare seedlings from dropping off the rail by the dropout prevention mechanism.

[0021] In the present invention, it is preferable that a locking mechanism for fixing the seedling stand for spare seedlings at a plurality of moving positions of the seedling stand for spare seedlings is provided.

[0022] According to this configuration, for example, when placing the seedlings on the spare seedling stand or when traveling for work, etc., the position to be fixed can be selected as needed.

[0023] In the present invention, it is preferable that the locking mechanism has a fixing portion that fixes the spare seedling stand by locking to the spare seedling stand, and an operating portion that manually operates the fixing portion between a locked state and a released state.

[0024] According to this configuration, by operating the operating portion, it is possible to configure the locking mechanism with a simple configuration in which the fixing portion is locked to the spare seedling stand.

[0025] In the present invention, it is preferable that a regulating mechanism for regulating the moving range of the spare seedling stand in the front-rear direction is provided.

[0026] According to this configuration, it is possible to avoid, by the regulating mechanism, the spare seedling stand from colliding with a device such as a fertilizer applicator disposed behind the spare seedling stand.

Brief Description of the Drawings

[0027]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0028] Embodiments for implementing the present invention will be described with reference to the drawings. In the following description, unless otherwise specified, the direction of arrow FW in the figure is defined as "front", the direction of arrow BK as "rear", the direction of arrow LH as "left", and the direction of arrow RH as "right". Also, the direction of arrow UP in the figure is defined as "up", and the direction of arrow DW as "down".

[0029] 〔Regarding the overall configuration of the rice transplanter〕 Hereinafter, a riding type rice transplanter (an example of a "transplanter") according to the present embodiment will be described. As shown in FIG. 1, in the rear part of a traveling vehicle body 3 equipped with right and left front wheels 1 and right and left rear wheels 2, a link mechanism 4 is supported. The link mechanism 4 extends rearward and is configured to be rotatable up and down. The link mechanism 4 is provided with a hydraulic cylinder 5 for lifting and lowering the link mechanism 4.

[0030] A seedling planting device 6 that can be connected to the rear part of the traveling vehicle body 3 and can plant seedlings in the field is provided. The seedling planting device 6 is supported by the rear part of the link mechanism 4. A fertilizer application device 7 for supplying fertilizer to the paddy field is provided at the rear part of the traveling vehicle body 3. A hopper 8 for storing fertilizer is provided on the upper part of the fertilizer application device 7.

[0031] As shown in FIG. 1, a transmission case 9 is arranged at the front part of the traveling vehicle body 3. An engine support frame 10 extending forward is connected to the transmission case 9. An engine (not shown) is supported by the engine support frame 10. A bonnet 11 for covering the engine is provided at the front part of the traveling vehicle body 3.

[0032] As shown in FIGS. 1 and 2, a floor 12 is provided from the right and left sides of the bonnet 11 to the rear side of the bonnet 11. A driver's seat 13 on which a passenger can sit is arranged at the upper part of the rear part of the floor 12.

[0033] As shown in FIGS. 1 to 3, a plurality of spare seedling stands 20 on which seedling boxes (hereinafter referred to as "seedlings" and "seedling boxes") containing seedling mats can be placed are arranged at the upper parts of the right and left sides of the traveling vehicle body 3. The plurality of spare seedling stands 20 are fixed to the traveling vehicle body 3 and are supported by a pair of front and rear columns 14 (corresponding to the "support frame" of the present invention) extending along the vertical direction. The front column 14 stands upright upward from the engine support frame 10 of the traveling vehicle body 3. The rear column 14 stands upright upward from the portion above the front wheel 1 of the traveling vehicle body 3.

[0034] Note that the columns 14 are provided on the left and right. A support member 15 is connected across the upper parts of the right and left columns 14. An antenna unit 16 capable of acquiring the position information of the traveling vehicle body 3 using a satellite positioning system is provided at a portion of the support member 15 located at the left and right center of the traveling vehicle body 3. As a typical example of the satellite positioning system (GNSS: Global Navigation Satelite System), GPS (Global Positioning System) can be mentioned.

[0035] Note that the riding type rice transplanter of the present invention can acquire and store the traveling route during the seedling planting operation using the antenna unit 16, and set it as a target traveling route parallel to the stored route. After setting the target traveling route in this way, the traveling vehicle body 3 is configured to be automatically traveled along the target traveling route. In the present embodiment, the traveling vehicle body 3 is configured to be switchable between automatic traveling that automatically steers and manual traveling that travels by the manual steering of the rider.

[0036] On the upper end portion of one side (the right side in the present embodiment) of the left and right columns 14, a stacked lamp 17 in which a plurality of color lamps for notifying the state of the rice transplanter to the outside are arranged in the vertical direction is fixed. Further, below the stacked lamp 17, a voice alarm 18 for notifying various information and warnings by voice is fixed to the column 14.

[0037] 〔Regarding the configuration of the spare seedling stand〕 As shown in FIG. 1, in the present embodiment, among the plurality of spare seedling stands 20, there are provided a first spare seedling stand 20A (corresponding to the "spare seedling stand" of the present invention), a second spare seedling stand 20B (corresponding to the "spare seedling stand" of the present invention), and a third spare seedling stand 20C, which are three spare seedling stands 20 located at the lower stage and extending in the front-rear direction. Hereinafter, these spare seedling stands are collectively referred to as the "lower spare seedling stand 20". Further, as the plurality of spare seedling stands 20, a fourth spare seedling stand 20D located in the middle stage and a fifth spare seedling stand 20E located in the upper stage are provided.

[0038] The first spare seedling stand 20A, the second spare seedling stand 20B, and the third spare seedling stand 20C each include a first spare seedling stand body 20AB, a second spare seedling stand body 20BB, and a third spare seedling stand body 20CB on which a seedling box can be placed, and a first spare seedling stand frame 20AF, a second spare seedling stand frame 20BF, and a third spare seedling stand frame 20CF that support these from below.

[0039] As shown in FIGS. 1 and 2, at the front end portion of the first spare seedling stand frame 20AF, the second spare seedling stand frame 20BF is supported so as to be swingable around an axis P1 extending in the width direction. At the rear end portion of the first spare seedling stand frame 20AF, the third spare seedling stand frame 20CF is supported so as to be swingable around an axis P2 extending in the width direction.

[0040] With this configuration, the second spare seedling stand 20B and the third spare seedling stand 20C are each swingably supported by the first spare seedling stand 20A, extend in the front-rear direction from the first spare seedling stand 20A, and are configured to be switchable between a use state in which seedlings can be placed and a folded state in which seedlings cannot be placed.

[0041] 〔Regarding the slide configuration of the spare seedling stand〕 A slide mechanism is provided that enables the first spare seedling stage 20A to slide relative to the support column 14 in the front-rear direction. As shown in FIGS. 3 to 5, a base frame 31 that supports the first spare seedling stage 20A from below is fixed to the support column 14. On the upper surface of the base frame 31, as members constituting the slide mechanism, two rail members 32 that extend in the front-rear direction and support the spare seedling stage 20 so as to be movable along the front-rear direction are fixed.

[0042] Four rollers 33 (corresponding to the "rotating body" of the present invention) are provided on the first spare seedling stage frame 20AF as members constituting the slide mechanism. The first spare seedling stage frame 20AF is supported by the rail member 32 via the rollers 33. With this configuration, the first spare seedling stage 20A is supported by the support column 14 via the base frame 31, the rail member 32, and the rollers 33.

[0043] Below the first spare seedling stage frame 20AF, two roller support members 34 that support the rollers 33 are provided. As the two roller support members 34, an inner roller support member 34A that is arranged on the support column 14 side and is provided so as to extend in the front-rear direction, and an outer roller support member 34B that is arranged outside the inner roller support member 34A in the width direction of the traveling vehicle body 3 and is provided parallel to the inner roller support member 34A are provided.

[0044] The inner roller support member 34A and the outer roller support member 34B are each formed in an inverted U-shaped cross-sectional shape and are constituted by members with an open bottom. The four rollers 33 are each rotatably supported by two in the inverted U-shaped inner side of the two roller support members 34. The rollers 33 are configured to be movable in the front-rear direction while rotating on a rail 32a formed on the lower surface of the rail member 32 so as to extend in the front-rear direction.

[0045] With the above configuration, the first spare seedling stage 20A, the second spare seedling stage 20B and the third spare seedling stage 20C supported by the first spare seedling stage 20A are integrally supported by the support column 14 so as to be movable in the front-rear direction and thus their positions can be changed.

[0046] 〔Regarding the configuration of the locking mechanism〕 As shown in FIG. 5, a locking mechanism 40 is provided for fixing the lower spare seedling stage 20 at a plurality of moving positions. The locking mechanism 40 includes a locking member 41 and a plurality of recesses 42 with which the locking member 41 engages.

[0047] As shown in FIGS. 3 to 5, the locking member 41 is rotatably supported by the base frame 31. Further, the locking member 41 is formed by bending a rod-shaped member and has a main body portion 41a, an operation portion 41b for manual operation, and an engaging portion 41c that engages with the recess 42.

[0048] The main body portion 41a of the locking member 41 is disposed at a location on the inner roller support member 34A side within the space between the inner roller support member 34A and the outer roller support member 34B, extends in the front-rear direction, and is disposed adjacent to the inner roller support member 34A. The operation portion 41b is formed to extend from one end portion (front end portion) of the main body portion 41a toward the inner roller support member 34A side. The engaging portion 41c is formed to extend from the other end portion (rear end portion) of the main body portion 41a toward the inner roller support member 34A side.

[0049] The recess 42 is formed in the roller support member 34 so that the engaging portion 41c of the lock member 41 can enter. Specifically, in the inner roller support member 34A, the lower portion of the side wall located on the main body portion 41a side of the lock member 41 among the two side walls is bent, thereby forming an inclined surface portion 34a that inclines toward the main body portion 41a of the lock member 41. The plurality of recesses 42 are each formed by being notched in an inverted U shape so as to extend upward from the lower side of the inclined surface portion 34a. In the present embodiment, the recesses 42 are formed at three locations: the front end portion, the central portion, and the rear end portion of the inner roller support member 34A that extends in the front-rear direction.

[0050] The lock member 41 is configured to rotate about the axis in the direction in which the main body portion 41a extends. By the rotation of the main body portion 41a, it is possible to switch between a locked state in which the engaging portion 41c enters the recess 42 and a released state in which the engaging portion 41c exits the recess 42.

[0051] The lock member 41 is provided with a spring member 43 that biases the lock member 41 toward the side where the engaging portion 41c enters the recess 42.

[0052] A long hole 35 extending in the vertical direction is formed at the front end portion of the rail member 32 on the inner side in the lateral direction. The operating portion 41b of the lock member 41 is inserted through the long hole 35. When the operating portion 41b is operated downward in a direction against the biasing force of the spring member 43, that is, along the direction in which the long hole 35 extends, the lock member 41 rotates about the axis in the direction in which the main body portion 41a extends. With this configuration, when the operating portion 41b is operated downward, it is possible to operate to a released state in which the engaging portion 41c exits the recess 42. In the present embodiment, the engaging portion 41c of the lock member 41 and the recess 42 are configured as a fixing portion for fixing the lower spare seedling table 20.

[0053] When changing the position of the lower seedling stage 20 in the front-rear direction, operate the operation unit 41b to release it. Then, move the lower seedling stage 20 in the front-rear direction. At this time, the inner roller support member 34A that moves integrally with the lower seedling stage 20 moves relative to the locking member 41 supported by the base frame 31. By moving the inner roller support member 34A, the engaging portion 41c of the locking member 41 can be moved to a position corresponding to the recesses 42 formed in the front end portion, central portion, and rear end portion of the inner roller support member 34A. After moving the lower seedling stage 20, the engaging portion 41c enters the recess 42 due to the biasing force of the spring member 43 or the like, resulting in a locked state.

[0054] With the above configuration, by engaging the engaging portion 41c of the locking member 41 with any one of the recesses 42 formed in the front end portion, central portion, and rear end portion of the inner roller support member 34A, the lower seedling stage 20 can be fixed at any one of the three moving positions: the front position, the central position, and the rear position in the front-rear direction. Here, in FIG. 1, the lower seedling stage 20 located at the front position and the central position is shown by a two-dot chain line, and the lower seedling stage 20 located at the rear position is shown by a solid line. Also, in FIG. 2, the left lower seedling stage 20 shown by a two-dot chain line is located at the front position, and the right lower seedling stage 20 shown by a two-dot chain line is located at the central position. And the lower seedling stage 20 shown by a solid line in FIG. 2 is located at the rear position.

[0055] When moving the lower seedling stage 20 in the front-rear direction, it can be moved by gripping the gripping portion 36 (see FIG. 3) provided at the front end portion of the first seedling stage 20A.

[0056] By setting the lower seedling stage 20 to the front position, for example, it becomes possible to easily place the seedlings from the front of the traveling vehicle body 3 onto the lower seedling stage 20. Also, by setting the lower seedling stage 20 to the rear position, when turning the traveling vehicle body 3 near the ridge, it becomes easier to avoid the collision of the lower seedling stage 20 with the ridge or the like.

[0057] 〔Configuration of the anti - detachment mechanism and the regulation mechanism〕 As shown in FIGS. 4 and 5, long holes 37 extending in the front - rear direction are formed in the side walls of the two rail members 32. In this embodiment, bolt holes (not shown) are formed on the side surfaces of the roller support members 34, and bolts B inserted through the long holes 37 are configured to be screw - engageable.

[0058] Since the bolt B is inserted through the long hole 37, the bolt B can move in the front - rear direction within the range from the front end portion to the rear end portion of the long hole 37. With this configuration, the roller support member 34 with which the bolt B is screwed and the lower - stage preliminary seedling placing table 20 that moves integrally with the roller support member 34 are configured to be movable in the front - rear direction within the range where the bolt B can move. In this embodiment, a regulation mechanism for regulating the front - rear movement range of the lower - stage preliminary seedling placing table 20 is constituted by the bolt B and the long hole 37.

[0059] Also, the two roller support members 34 are configured to be able to prevent falling off from the rail 32a of the rail member 32 because the bolts B inserted through the long holes 37 are fixed from both the left and right outer sides. Further, since the width of the long hole 37 is formed to be narrower than the diameter of the head of the bolt B, it is possible to more effectively prevent the roller support member 34 from falling off from the rail 32a. In this embodiment, an anti - detachment mechanism for preventing the lower - stage preliminary seedling placing table 20 from falling off from the rail 32a is constituted by the bolt B and the long hole 37.

[0060] 〔Another embodiment〕 Hereinafter, another embodiment in which changes are made to the above - described embodiment will be exemplified.

[0061] (1) In the above-described embodiment, as the standby seedling stage 20, the first standby seedling stage 20A supported by the support column 14, the second standby seedling stage 20B and the third standby seedling stage 20C swingably supported by the first standby seedling stage 20A are provided, and this configuration has been described as an example. However, the present invention is not limited to the above-described embodiment. For example, as the standby seedling stage 20, a configuration in which only a standby seedling stage swingably supported by the support column 14 is provided may be used.

[0062] (2) In the above-described embodiment, the lower standby seedling stage 20 is configured to be movable in the front-rear direction by the roller 33 rotating on the rail 32a of the rail member 32, and this configuration has been described as an example. However, the present invention is not limited to the above-described embodiment. For example, without providing the roller 33 and the rail 32a, by providing a bearing or the like on the bolt B inserted into the long hole 37 of the rail member 32, the lower standby seedling stage 20 may be configured to be movable in the front-rear direction. Also, without providing the roller 33, the roller support member 34 (corresponding to the "sliding member" of the present invention) may be configured to directly slide on the rail 32a of the rail member 32 by reducing the frictional resistance with a lubricant. At this time, a sliding member may be provided between the roller support member 34 and the rail member 32.

[0063] (3) In the above-described embodiment, the second standby seedling stage 20B and the third standby seedling stage 20C swingably supported by the first standby seedling stage 20A are integrally movable in the front-rear direction, and this configuration has been described as an example of being configured to be position-changeable. However, the present invention is not limited to the above-described embodiment. For example, the first standby seedling stage 20A, the second standby seedling stage 20B, and the third standby seedling stage 20C may be configured to be switchable between a deployed state in which they are arranged in the front-rear direction and a stored state in which they are arranged in the vertical direction.

[0064] Further, the second preliminary seedling stand 20B (corresponding to the "front preliminary seedling stand" of the present invention) may be configured to be relatively movable in the front-rear direction with respect to the first preliminary seedling stand 20A (corresponding to the "rear preliminary seedling stand" of the present invention). At this time, by moving the second preliminary seedling stand 20B forward, the first preliminary seedling stand 20A and the second preliminary seedling stand 20B are in an unfolded state arranged in the front-rear direction, and by moving the second preliminary seedling stand 20B backward, the first preliminary seedling stand 20A and the second preliminary seedling stand 20B are in a stored state arranged in the vertical direction.

[0065] (4) In the above embodiment, the configuration in which the elongated hole 37 is provided in the rail member 32 and the bolt B is inserted into the elongated hole 37 has been described as an example. However, the present invention is not limited to the above embodiment, and a configuration without the elongated hole 37 and the bolt B may also be used.

[0066] (5) In the above embodiment, the configuration in which the regulating mechanism and the anti-drop mechanism are constituted by the bolt B and the elongated hole 37 has been described as an example. However, the present invention is not limited to the above embodiment, and a protruding portion protruding laterally outward from the roller support member 34 may be formed, and the regulating mechanism and the anti-drop mechanism may be constituted by the protruding portion entering the elongated hole 37 of the rail member 32.

[0067] (6) In the above embodiment, the configuration in which the spring member 43 is provided in the lock member 41 has been described as an example. However, the present invention is not limited to the above embodiment, and the lock member 41 may be configured without the spring member 43.

[0068] (7) In the above embodiment, the configuration in which the lower preliminary seedling stand 20 can be fixed at any one of three moving positions, i.e., the front position, the central position, and the rear position in the front-rear direction, by the lock member 41 has been described as an example. However, the present invention is not limited to the above embodiment, and a configuration in which it can be fixed at one or two moving positions may also be used, and a configuration in which it can be fixed at four or more moving positions may also be used.

[0069] Furthermore, the configurations disclosed in the above embodiments (including other embodiments, the same shall apply hereinafter) can be applied in combination with the configurations disclosed in other embodiments as long as there is no contradiction. In addition, the embodiments disclosed in this specification are illustrative, and the embodiments of the present invention are not limited thereto, and can be appropriately modified within the scope not departing from the object of the present invention.

Industrial Applicability

[0070] The present invention can be applied not only to riding type rice transplanters but also to seedling stands for preliminary seedlings in transplanters such as vegetable transplanters.

Explanation of Reference Numerals

[0071] 3: Traveling vehicle body 14: Support column (support frame) 20A: First seedling stand (seedling stand, rear seedling stand) 20B: Second seedling stand (seedling stand, front seedling stand) 32a: Rail 33: Roller (rotating body) 40: Locking mechanism 41b: Operating part

Claims

1. A traveling vehicle body, A support frame provided on the traveling vehicle body, A spare seedling stand provided so as to extend in the front-rear direction, and the transplanting machine is provided with the same, The spare seedling stand is supported by the support frame so as to be relatively movable in the front-rear direction.

2. The spare seedling stand has a front spare seedling stand and a rear spare seedling stand, The front spare seedling stand is located in front of the rear spare seedling stand, and the front spare seedling stand and the rear spare seedling stand are configured to be switchable between a deployed state in which they are arranged in the front-rear direction and a stored state in which the front spare seedling stand and the rear spare seedling stand are arranged in the vertical direction, The rear spare seedling stand is fixed to the support frame, The front spare seedling stand is supported by the rear spare seedling stand so as to be relatively movable in the front-rear direction when in the deployed state. The transplanting machine according to claim 1.

3. The spare seedling stand is composed of a plurality of spare seedling stands, As the plurality of spare seedling stands, a first spare seedling stand supported by the support frame and a second spare seedling stand supported by the first spare seedling stand are provided. The transplanting machine according to claim 1.

4. A rail extending in the front-rear direction is fixed to the support frame, The spare seedling stand is provided so as to be movable on the rail. The transplanting machine according to any one of claims 1 to 3.

5. The spare seedling stand has a rotating body that rotates on the rail. The transplanting machine according to claim 4.

6. The spare seedling stand has a sliding member that slides on the rail. The transplanting machine according to claim 4.

7. The transplanting machine according to claim 5 or 6 is provided with a dropout prevention mechanism for preventing the spare seedling stand from dropping off the rail.

8. The transplanting machine according to any one of claims 1 to 3 is provided with a locking mechanism for fixing the spare seedling stand at a plurality of moving positions of the spare seedling stand.

9. The locking mechanism has a fixing portion that fixes the spare seedling stand by locking the spare seedling stand, and an operating portion that manually operates the fixing portion between a locked state and a released state. The transplanting machine according to claim 8.

10. The transplanting machine according to any one of claims 1 to 3 is provided with a regulating mechanism for regulating the moving range of the spare seedling stand in the front-rear direction.

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