JPH0870651A - Rice-planter - Google Patents

Abstract

PURPOSE: To provide a rice-planter by which its own widthwise dimension can be minimized through simple and smooth housing motions. CONSTITUTION: The rice seedling-planting unit is made freely dividable at its center position and the divided left and right parts AL and AR are respectively rotated around the upright-standing first and second shaft axes X1 and X2 so that their outer edges in the traverse direction may come toward the front side of the running machine body and the divided seedling platforms 13L and 13R come close to each other in the parallel housing position. Further, this rice-planter is equipped with a movement allowance mechanism which can move outward either of the divided seedling platforms on the sliding rail 28 until the contact of the platforms 13L and 13R can be avoided at their inner edges and a locking mechanism for holding the platforms at the moved positions, when the divided parts are rotated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding rail arranged in a horizontally long position, a plurality of rows of seedling mounts supported so as to be capable of reciprocating laterally with respect to this sliding rail, and this seedling mount. A seedling planting device, which comprises a plurality of planting arms for cutting out the seedlings from the mat-shaped seedlings placed on the table, and a transmission mechanism for driving the planting arms, is movably connected to the rear end of the traveling machine body. More specifically, it relates to a technique for reducing the lateral dimension of a seedling planting device when not in operation.

[0002]

2. Description of the Related Art As a technique for reducing the lateral dimension of a seedling planting apparatus as described above, there is one disclosed in Japanese Utility Model Laid-Open No. 4-113523. By making it foldable, the lateral extension of the seedling placing table can be reduced by folding both ends of the seedling placing table when not in operation.

[0003]

Since the seedling planting device of the riding type rice transplanter has a large lateral dimension, it is used for avoiding contact with obstacles when traveling on the road or for loading the rice transplanter on a truck. In order to fit the entire rice planting machine within the width of the truck bed when transporting the plant, it is necessary to reduce the lateral dimension of the planting equipment for multi-row planting such as 8-row planting. The rice transplanter like the example was also considered. However, in the configuration of this conventional example, only the both sides of the seedling placing base are folded, so that the lateral dimension is too small when storing the seedling planting device for multiple row planting of 10 rows or more. There was room for improvement because it was not possible.

Therefore, the whole seedling planting device is divided into left and right parts, and the lateral direction of the seedling planting device is changed to a frontward and rearward posture by pivoting about a suitable vertical axis. Therefore, it may be possible to reduce the lateral dimension of the seedling planting device during storage. However, in the case of storing by rotating the divided pieces in this way, simply rotating the divided pieces around the axis causes contact between the inner ends of the divided surfaces of the divided seedling placing table, resulting in improvement. Leave room. In order to eliminate this inconvenience, the divided pieces of the seedling planting device are supported via a link mechanism so that they can be separated in the left-right direction, and the divided pieces are rotated in this separated state so that the inner ends of the divided seedling mounting bases It is possible to change the posture so that the left and right direction becomes the front and back direction while avoiding the contact of, and after that, by operating the link mechanism etc., the divided objects are brought closer to each other and the size of the left and right direction can be reduced. It is also conceivable to use a configuration that does. However, since members such as a link mechanism that enable such an operation are likely to be large in size and the structure and the operation are likely to be complicated, there is room for improvement in this respect.

An object of the present invention is to reasonably construct a rice transplanter capable of making the lateral dimension as small as possible by a simple retracting operation even with a seedling planting device with 10 or more plants.

[0006]

The first feature of the present invention (Claim 1) is, as described at the beginning, a slide rail, a plurality of rows of seedling mounts, a plurality of planting arms, and a transmission mechanism. In a rice transplanter in which a seedling planting device equipped with is connected to the rear end of the traveling body so as to be able to move up and down, the seedling planting device is configured to be split at the central position in the left-right direction, and each split product is a frame. The first shaft core is rotatably supported around the first shaft core in a vertical posture with respect to the member, and the frame member is rotatably supported by the member on the traveling machine body side around the second shaft core. By rotating the divided object around, the lateral outer end of the divided object is directed to the front side of the traveling machine body, and by rotating the frame member around the second axis, the divided object is moved in the left-right direction of the traveling machine body. Move it to the center position side in the storage position so that the upper edges of the split seedling platforms are parallel to each other in close proximity. The split seedling placement table is configured to be replaceable, and one of the split seedling placement tables is moved to a position where contact between inner end sides of the respective split seedling placement tables is avoided when the split article is rotated around the first axis. A movement permitting mechanism that can move outward on the moving rail,
And, in that it is provided with a lock mechanism for holding the divided seedling placing table at this moving position,

A second feature of the present invention (claim 2) is, as described at the beginning, a sliding rail, a seedling mount for a plurality of rows,
In a rice transplanter in which a seedling planting device equipped with a plurality of planting arms and a transmission mechanism is connected to the rear end of a traveling body so as to be able to move up and down, the seedling planting device is configured to be split at a lateral center position. At the same time, each of the divided parts is rotatably supported with respect to the frame member about a first axis in a vertical posture, and the frame member is rotatably about a second axis as a member on the traveling machine body side. By supporting, the lateral ends of the divided parts in the lateral direction are directed toward the front side of the traveling body by the rotation of the divided parts about the first axis, and the frame members are rotated about the second axis. By moving the split object to the central position side in the left-right direction of the traveling machine body, it is possible to switch to the storage posture in which the upper edge of each split seedling stand is parallel in the close state, and the first axis To the position where avoiding contact between the inner end sides of each divided seedling platform when rotating the divided pieces around the core It is equipped with a movement permission mechanism that can move one of the split seedling placement stands outward on the slide rails, and a lock mechanism that holds the split seedling placement stand moved by this movement permission mechanism at the restoration position before the movement. There is a point
The actions and effects of the first and second features are as follows.

[0008]

According to the first feature described above, when the seedling planting device is stored, the seedling planting device is divided and at the same time, one of the divided seedling mounts is moved outward on the slide rail by the movement permitting mechanism. And hold it in the moving position with the lock mechanism.
By rotating the split member around the axis and simultaneously rotating the frame member around the second axis, the lateral outer end of the split faces the forward direction of the traveling machine body, and the inner end of the split is rotated. The two are headed toward the center position in the left-right direction of the machine, and one split seedling placement table is displaced outward during this operation, and this offset state is maintained, so the split seedling placement platform is rotated during rotation. The rotation can be performed while avoiding the contact between the inner ends while keeping the position stable.

According to the second feature described above, when the seedling planting device is stored, the seedling planting device is divided and one of the divided seedling mounts is moved outward on the slide rail by the movement permitting mechanism. In this state, by rotating the divided member around the first axis and at the same time rotating the frame member around the second axis, the lateral outer end of the divided member moves in the forward direction of the traveling machine body. As a result, the inner ends of the splits move toward the center position in the left-right direction of the machine, and as a result, the lateral dimension of the seedling planting device can be reduced. The weight of the seedling planting device in the retracted state in the front-rear direction can be balanced by restoring the seedling planting device to the above position and holding it in this restored position by the lock mechanism.

[0010]

[Effects of the Invention] Therefore, even with a seedling planting device with 10 or more plantings, a rice transplanter is constructed which does not require a complicated structure and can be reduced in the lateral dimension by a simple and smooth storage operation. (Claim 1) In addition, even with a planting apparatus for planting 10 or more rows, the lateral dimension can be reduced by a simple retracting operation without requiring a complicated structure. A rice transplanter capable of holding the attachment device in a weight-balanced state is constructed (claim 2).

[0011]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, an engine 4 is mounted on the front part of a traveling machine body 3 provided with a steering type driven front wheel 1 and a driving type rear wheel 2, and the front part of the traveling machine body 3 is mounted. A continuously variable transmission 5 to which power from the engine 4 is transmitted, and a transmission case 6 are arranged, a driving seat 7 is arranged at the center of the traveling body 3, and a hydraulic pressure is applied to the rear end of the traveling body 3. The seedling planting device A is connected through a link mechanism 9 that is driven and moved up and down by a cylinder 8 to form a riding type rice transplanter.

The right side of the driver's seat 7 is provided with an elevating lever 10 for controlling the raising and lowering of the seedling planting device A and the on / off operation of the planting clutch C, and the left side of the driver's seat 7 is the continuously variable transmission. A gear shift lever 11 for operating the device 5 is provided.
The planting clutch C is built in the speed change case 6, and the disengagement operation is performed only when the transmission shaft 12 that transmits power from the speed change gear 6 to the seedling planting device A is in a predetermined rotation phase. It is configured to allow and stop the planting arm (described later) of the seedling planting apparatus A in a posture that avoids the posture of contacting the field.

The seedling planting device A includes a seedling stand 13 on which a mat-shaped seedling W is placed, a pair of left and right transmission cases 14 and 14 to which power from the transmission shaft is transmitted, and the transmission case 14 and a chain case 15. The rotary case 16 that rotates by the power transmitted by the rotary case 16, the pair of planting arms 17 provided in the rotary case 16 one by one, and the plurality of ground leveling floats 18 are respectively configured for eight-row planting, and a hopper,
A fertilizer application device 19 having a feeding mechanism, a grooving device, etc. is provided, and at the time of operation, the seeding arm 17 cuts out the seedlings one by one from the lower end of the mat-like seedling W placed on the seedling placing table 13 and is planted in a field scene. Simultaneously with the operation, the fertilizer application device 19 operates to supply the fertilizer to the field scene near the planted seedling.

As shown in FIG. 2 and FIG. 3, in this rice transplanter, 2 rows of 4 rows each are provided at the central position of the seedling planting apparatus A in the left-right direction.
It is configured to be divided freely, and each divided object AL, AR is
The frame member 20 constituting the divisions AL and AR is rotatably supported around the first axis X1 in the vertical posture, and further, with respect to the main frame 21 provided at the rear end of the link mechanism 9. The frame member 20 is rotatably supported around the second axis X2 so that the divided objects AL and AR can be rotated about the first axis X1 in the lateral direction. The outer ends are directed to the front side of the traveling machine body 3 and, at the same time, the divided members AL and AR are moved to the center position side of the traveling machine body 3 by the rotation of the frame member 20 around the second axis X2. Let's let the left and right split seedling placement stands 13L, 13R
The upper end edges of the seedlings are switched to a storage posture in which they are parallel to each other in a close state so that the lateral dimension of the seedling planting apparatus A can be reduced. Further, as shown in FIGS. 4A and 4B, an interlocking operation mechanism S for simultaneously rotating the left and right divided objects at the time of the switching operation to the storage posture and an actuator T for performing the storage operation are provided. There is.

That is, the vertical plate 23 is supported so as to be able to roll around the rolling axis Y in the front-back direction with respect to the rolling boss 22 connected to the lower end of the vertical frame 9A that supports the rear end of the link mechanism 9. As shown in FIG. 5, the main frame 21 composed of the upper plate 21A and the lower pipe 21B is fixed to the vertical plate 23, and the second axis X is provided at both left and right ends of the main frame 21.
2, the round pipe-shaped frame member 20 is rotatably supported about a second shaft 24 arranged coaxially with the second shaft 24, and the frame member 20 is rotatably supported around the second shaft core X2.
A square pipe-shaped support frame 27 is rotated around the first axis X1 through a channel-shaped bracket 26 with respect to a first shaft 25 arranged coaxially with the first axis X1 at the outer end of the The left and right transmission cases 14 and the chain case 15 are freely supported with respect to the support frame 27.
Further, left and right sliding rails 28, 28 for supporting the seedling placing table 13 are provided on the upper surfaces of the pair of chain cases 15, 15 of the divided products AL, AR, respectively.

As shown in FIGS. 1 and 2, the screw shaft 29, which is rotationally driven by the power of the left transmission case 14, is provided with the transmission case 14 and the bearing member 30 at the end of the support frame 27 on this side. And a moving member 31 for transmitting a moving force of a top (not shown) engaged in the spiral groove of the screw shaft 29 to the left divided seedling placing table 13L. The transverse feed mechanism of is constructed. In the seedling placing table 13, the left and right divided seedling placing tables 13L and 13R are respectively connected to the connecting member D.
(See FIG. 10 and FIG. 11), they are integrally reciprocated laterally on the slide rails 28, 28 by the power from the transverse feed mechanism.

The connecting member D is a left and right divided seedling placing table 13
The divided seedling placing bases 13L and 13R are connected and fixed by being arranged between L and 13R (the structure is not described in detail), and the transmission connecting portion 31 is connected by the connecting member D. It is also used as a movement permitting mechanism capable of moving the divided seedling placing table 13R on the opposite side to the sliding side on the sliding rail 28.

An output shaft 32, to which the power from the transmission shaft 12 is transmitted, is supported on the rolling boss 22 coaxially with the rolling shaft core Y, and the power of the output shaft 32 is transmitted to the clutch. Mechanism 33, bevel case 34,
A transmission system is formed to transmit to the left and right transmission cases 14, 14 via the respective intermediate shafts 35. Further, the clutch mechanism 33 is configured so that the two members 33A and 33B that engage with each other only in a specific rotation phase can be separated and connected by moving in the Y direction of the rolling axis, and the bevel case 34 receives power from the output shaft 32. A transmission system having a bevel gear (not shown) is installed so as to branch into two systems and output, and the intermediate shaft 35 is provided with universal joints at both ends to be configured to be bendable and to have a spline fitting type expansion / contraction part. It has a flexible structure.

As shown in FIG. 6, by splitting the upper ends of the first axis X1 and the second axis X2 slightly toward the front of the traveling machine body 3, the split seedlings in the stored state are obtained. As shown in FIG. 15, the placing bases 13L and 13R are changed to a posture toward the standing posture, and the lateral direction of the seedling planting device A at the time of storage (in the close state of the respective divided seedling placing bases 13L and 13R) is set. The size can be further reduced. FIG.
(A), (b), and as shown in FIG. 5, the first shaft 25 is non-rotatably supported with respect to the main frame 21.
A main sprocket 36 is fixed to the upper part of the shaft 25 coaxially with the second shaft core X2, and a rotating plate 37 is provided so as to be rotatable around the second shaft core X2. Further, the second shaft 24 is fixed to the frame member 20, supports the bracket 26 rotatably with respect to the second shaft 24, rotates integrally with the bracket 26, and has the main sprocket 36. A driven sprocket 38 having half the number of teeth is arranged coaxially with the second axial center X2, and a chain 39 is wound around the main sprocket 36 and the driven sprocket 38.

The left and right rotating plates 37, 37 are connected and fixed to each other via rods 37A, 37A so as to rotate in association with the turning force of the left and right frame members 20, 20, and the left and right rotating plates 37 are also provided. , 37 are connected to each other by a link member 40 so as to rotate them in opposite directions to constitute the interlocking operation mechanism S. Further, the sector gear 41 arranged coaxially with the left side second axis X2 is a frame. A pinion gear 4 that is fixed to the member 20 side and meshes with the sector gear 41.
2 is provided on the main frame 21 side, and an electric motor 43 as the actuator T is provided to drive the pinion gear 42.

As shown in FIGS. 7 and 8A and 8B, a hole 28A formed on the upper surface of the sliding rail 28, a lock piece 44 engaging and disengaging with the hole 28A, and this lock piece. 44 is formed at the lower end, and the right side of the divided seedling placing table 13
A lock mechanism R for blocking the lateral movement of the right seedling placing table 13R is constituted by a rod 45 provided on the R side so as to be vertically operable and a lever 46 for operating the rod 45 up and down. The mechanism R is used when the seedling placing table 13 (one in which the left and right divided seedling placing tables 13L and 13R are integrated) is located at the left and right center and when the right divided seedling placing table 13R is located at the right moving end. It is configured so that the movement of the right divided seedling placing table 13R can be prevented at the respective positions. or,
A center switch 48 and a side switch 49 are provided on the sliding rail 28 side to detect that the right split seedling placement table 13R is located at these positions by contact with the protrusions 47 of the right split seedling placement table 13R. ing.

As shown in FIG. 9, a system is formed in which signals of the storage switch 51, the restoration switch 52, the center switch 48, and the side switch 49 are input to a control device 50 having a microprocessor. An output system for outputting a control signal to each of the driver 53, the center lamp 54, the side lamp 55, and the buzzer 56 for controlling the electric motor 43 is formed. In this control system, the seedlings in a working posture are driven by driving the electric motor 43. It is configured to perform control to switch the attachment device A to the storage posture and control to restore the seedling planting device A in the storage posture to the working posture. Further, when the center switch 48 detects the seedling placement table 13, the center When the lamp 54 is turned on and the buzzer 56 is activated for a short time, and the side switch 49 detects the right side seedling placement table 13R, the support is turned on. When lighting the Doranpu 55 actuates short buzzer 56 simultaneously performs the control operation.

With this configuration, when the seedling planting apparatus A is stored, the seedling planting apparatus A is raised to a level away from the ground and first the seedling planting apparatus A is driven by the driving force of the transverse feed mechanism. The platform 13 is sent to the center position side in the left-right direction, the center switch 48 detects the seedling platform 13, the center lamp 54 is turned on, and the lateral feed is stopped at a position where the buzzer 56 operates (in this state, Reach 10 postures). After this, the connection of the connecting member D that connects the left and right divided seedling placing bases 13L and 13R is released, and the right divided seedling placing base 13R is artificially moved to the right side moving end to the side switch 49. The side lamp 55 lights up when the divided seedling stand 13R is detected, and the buzzer 56 is stopped at a position where the buzzer 56 operates. Further, the lock mechanism R performs an operation of fixing the right divided seedling stand 13R (this state). Then, the posture shown in FIG. 11 is reached, and the divided seedling placing table 13R has moved to the right by about 15 cm).

Next, the clutch mechanism 33 is artificially disengaged, the predetermined connection is released to switch the seedling planting apparatus A to a divisible state, and the storage switch 51 is operated to drive the electric motor 43. Then, the posture of the left frame member 20 is changed by this driving force, and in accordance with the change of the posture, the force from the rotating plates 37, 37 and the link member 40 causes the respective second frame members 20, 20 to interlock with each other. Around the cores X2 and X2, the outer end side of the main sprocket 36 is rotated toward the rear side, and at the same time as this rotation, the system supported by the brackets 26 and 26 around the first axis cores X1 and X1 is the main sprocket 36, Due to the force from the driven sprocket 38 and the chain 39, the rotation speed of the frame members 20, 20 is twice as fast as the rotation direction of the frame members 20, 20, ie, the left and right outer ends thereof. There pivoted on the side toward the front of the vehicle body 3. As a result, the divided objects AL and AR change their postures in a direction in which the lateral outer ends of the divided objects AL and AR are directed to the front side of the traveling machine body 3 by rotation around the first axis X1. At the same time, by rotating the frame member 20 around the second axis X2, the position of the traveling machine body 3 is changed to the central position side in the left-right direction, and the upper edges of the divided seedling placing bases 13L and 13R come close to each other. In this state, the operation of switching to the parallel storage posture is performed.

When rotating in this storage direction, as shown in FIG. 12, although the corner portions 13E, 13E at the upper inner ends of the left and right split seedling placement stands 13L, 13R are close to each other, the split seedling placement stand in plan view. Since the 13L and 13R rotate in a state where they are offset from each other, it is possible to rotate while avoiding contact between the respective corner portions 13E and 13E, and the clutch mechanism 33.
This rotation is allowed due to the separation of No. 1 and the expansion and contraction of the intermediate shaft 35, and the operation of the electric motor 43 is automatically stopped when the seedling planting apparatus A reaches the storage posture shown in FIG. 13 (the control operation will be described in detail. No).

After that, the lock mechanism R is unlocked and the right divided seedling placing table 13R is artificially moved to the position shown in FIG. 14 to balance the weight of the seedling planting apparatus A in the front-rear direction. Then the storage is completed. As shown in FIG. 3, in this stored posture, the transmission system of the bevel case 34, the intermediate shaft 35, and the transmission case 12 is not separated, and only the clutch mechanism 33 is separated so that the vehicle travels. According to the direction from the rear of the body 3, FIG.
As shown in, the upper and lower edges of the divided seedling placing bases 13L and 13R are extremely close to each other in a state where the divided seedling placing bases 13L and 13R are close to each other, so that the size in the left-right direction is reduced.

When the seedling planting apparatus A in this retracted posture is restored to the working posture, the right divided seedling stand 13R is moved to the position shown in FIG. 13 and locked by the lock mechanism R, and the side switch 49 is used. Restoration operation of the control device 50 is allowed in a state where the divided seedling placing table 13R is detected by, and when the restoration switch 52 is operated in this state, the electric motor 43 rotates in the reverse direction so that the divided objects AL and AR move in the opposite direction to the above. As a result of the rotation, the seedling planting device A in the retracted posture is caused by the operation opposite to the above.
Changes the posture toward the work posture, and when the seedling planting apparatus A reaches the posture shown in FIG. 11 by this posture change, the electric motor 4
The operation of No. 3 is stopped (the control operation is not described in detail), the restoration is completed, the clutch mechanism 33 is connected in this state, and the divided seedling placing bases 13L and 13R are connected by the connecting member D to perform the work Reach the possible state.

[Other Embodiments] In addition to the above embodiments, the present invention is
For example, the lock mechanism R can be configured so as to electrically hold the position of the divided seedling placing table, such as operating the protrusion and retreat of the electric motor, and the position of the divided seedling placing table is held by friction force. It is also possible to configure the locking mechanism R so that

Further, the present invention can be constructed so that the storing operation can be performed manually, or the storing operation can be performed by a hydraulic cylinder, a hydraulic motor or the like instead of the electric motor. In addition, as shown in FIG. 16, the sector gear 41, the pinion gear 42, and the electric motor 4 are configured to rotate the left and right frame members 20, 20 independently.
It is also possible to provide the respective three drive structures corresponding to the left and right frame members 20, 20, respectively.

It should be noted that although reference numerals are given in the claims for convenience of comparison with the drawings, the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

[Figure 1] Overall side view of rice transplanter

FIG. 2 is a plan view of the transmission system of the seedling planting device.

FIG. 3 is a plan view of the transmission system of the seedling planting device in the retracted posture.

FIG. 4A is a plan view of the interlocking operation mechanism. FIG. 4B is a plan view of the interlocking operation mechanism in the retracted posture.

FIG. 5 is a rear view of the main frame and a part of the frame member with a part notched.

FIG. 6 is a side view showing the postures of the first axis and the second axis.

FIG. 7 is a plan view of an end portion of a sliding rail showing a switch arrangement and the like.

FIG. 8A is an overall side view of the lock mechanism, and FIG. 8B is an enlarged side view of the main part of the lock mechanism.

FIG. 9 is a block circuit diagram of a control system.

FIG. 10 is a plan view of the rice transplanter with the seedling planting device set to a work posture.

FIG. 11 is a plan view of the rice transplanter with the seedling placing table divided.

FIG. 12 is a plan view of the rice transplanter with the seedling planting device divided and rotated.

FIG. 13 is a plan view of the rice transplanter in a state where the rotation of the divided pieces of the seedling planting device is completed.

FIG. 14 is a plan view of the rice transplanter in which the end positions of the divided seedling placing bases are aligned.

FIG. 15 is a rear view of the seedling planting device in the stored state

FIG. 16 is a plan view of a drive system according to another embodiment.

[Explanation of symbols]

 3 Traveling aircraft 13 Seedling platform 13L, 13R Split seedling platform 17 Planted arm 20 Frame member 28 Sliding rail A Plant seedling plant AL, AR Split R Lock mechanism W Mat seedling X1 1st axis X2 2nd Shaft core

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Takeo Kuboshita 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Factory

Claims (2)

[Claims] 1. A sliding rail (2) arranged in a horizontal position.
8), a plurality of rows of seedling mounts (13) supported by the sliding rails (28) so as to be reciprocally movable in the lateral direction, and mat-like seedlings (13) mounted on the seedling mounts (13) W) A seedling planting device (A) including a plurality of planting arms (17) for cutting seedlings from W) and a transmission mechanism for driving the planting arms (17) is lifted to the rear end of the traveling machine body (3). A rice transplanter that is freely connected, wherein the seedling planting device (A) is configured to be split at a central position in the left-right direction, and each of the split products (AL) and (AR) is a frame member (20). ), (20), and is rotatably supported about the first axis (X1), (X1) in a vertical posture,
The frame members (20) and (20) are attached to the second shaft core (X
2) By supporting the member on the traveling body side so as to be rotatable around (X2), it is possible to rotate the split objects (AL) and (AR) around the first axis (X1) and (X1). The division (AL),
The lateral outer end of (AR) is directed to the front side of the traveling machine body (3), and the frame members (20) and (20) are rotated around the second axes (X2) and (X2). Split (AL),
(AR) is moved to the central position side in the left-right direction of the traveling machine body (3), and the divided seedling placing stands (13L) and (13R) are respectively moved.
The upper edge of each of the split seedlings is configured to be able to be switched to a storage posture in which the upper end edges of the split seedlings are parallel to each other in a close state, and each split seedling mounting table (when split objects are rotated around the first axis (X1), (X1). 13L),
(13R) A movement permitting mechanism capable of moving any one of the divided seedling platforms to the outside on the sliding rail (28) to a position where the inner end sides of the divided seedlings are prevented from contacting each other, and the divided seedlings at this moving position. Rice transplanter equipped with a lock mechanism (R) that holds the platform. 2. A sliding rail (2) arranged in a horizontal position.
8), a plurality of rows of seedling mounts (13) supported by the sliding rails (28) so as to be reciprocally movable in the lateral direction, and mat-like seedlings (13) mounted on the seedling mounts (13) W) A seedling planting device (A) including a plurality of planting arms (17) for cutting seedlings from W) and a transmission mechanism for driving the planting arms (17) is lifted to the rear end of the traveling machine body (3). A rice transplanter that is freely connected, wherein the seedling planting device (A) is configured to be split at a central position in the left-right direction, and each split product is a frame member (2).
0) and (20), the first axis (X
1) and (X1) are rotatably supported and the frame members (20) and (20) are supported by the second shaft cores (X2) and (X2).
By supporting the member on the traveling body side so that it can rotate around,
First axis (X1), divided object (AL) around (X1),
By turning (AR), the lateral outer ends of the divided parts (AL) and (AR) are directed toward the front side of the traveling machine body (3), and the second axial centers (X2) and (X2) are rotated. Frame members (20),
By rotating (20), the divided objects (AL) and (AR) are moved to the central position side in the left-right direction of the traveling machine body (3), and the upper edge of each divided seedling placing table (13L) and (13R). It is possible to switch to a storage position in which the two are in close proximity and are parallel to each other.
In addition, the divided object (A) around the first axis (X1), (X1)
L) and (AR) are rotated, the respective divided seedling placing bases (13)
L) and (13R), a movement permitting mechanism capable of moving any one of the divided seedling placing stands outward on the slide rail (28) to a position where contact between the inner end sides of the (13R) is avoided, and this movement permitting. A rice transplanter equipped with a lock mechanism (R) that holds the split seedling table moved by the mechanism at the restoration position before the movement.