JPH08298830A - Rice transplanter - Google Patents

Abstract

PURPOSE: To provide a rice transplanter so designed that a seeding planting device is dividedly housed without varying the control levels of planting depth control shafts mounted in a long sideways fashion on the seedling planting device and also restoration of the resultant divided device is made possible. CONSTITUTION: This rice transplanter is so designed that a seedling planting device is divided at an intermediate point along its transverse direction, and through the posture change for the resultant divided devices around the corresponding longitudinal shaft centers, the transverse direction of them is turned to the longitudinal direction of a traveling machine body, and the housing posture for the device is made switchable between the above-mentioned housing posture and a workable posture. Planting depth control. shafts 20 to set the relative position for the actuation locus of a planting tine tip and the field surface are equipped on the divided devices, respectively, and there are also equipped planting depth control levers 23, 23 to conduct revolving operation for the respective planting depth control shafts 20, 20 around the corresponding shaft centers and hold the respective revolving operational positions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a seedling planting device for cutting seedlings placed on a seedling placing table by a planting mechanism and planting them in a field so as to be vertically movable at the rear end of a traveling machine body. Seedling adjustment axis that sets the relative position between the operation locus of the planting claw tip that constitutes the planting mechanism and the seedling mounting table, or the relative movement between the working locus of the planting claw tip that configures the planting mechanism and the field scene. Regarding a rice transplanter equipped with an operation shaft composed of a planting depth adjusting shaft for setting a position, in detail, by switching the seedling planting device to a retracted posture, the lateral dimension of the planting plant device can be reduced. Technology.

[0002]

2. Description of the Related Art Conventionally, as a rice transplanter configured to reduce the lateral dimension of a seedling planting device as described above, it is disclosed in Japanese Patent Application No. 6-214449 filed by the applicant of the present invention. In this conventional example, FIG. 16 (a),
As shown in (b), (c), and (d), the seedling planting device A, which is supported at the rear end of the traveling body so as to be able to move up and down, can be freely divided into two divisions AL, AR at the left and right central portions. With configuring
By configuring each of the divisions AL and AR to be rotatable about the longitudinal axis, the lateral outer end of each of the divisions AL and AR is in the forward direction of the traveling machine body 3 when switching to the storage posture. By turning to the side toward which the divided objects AL, AR
The respective upper end edges of the divided seedling placing bases 13L and 13R reach a posture in which they are close to each other in a parallel posture, and the lateral dimension is reduced.

[0003]

A conventional seedling planting device is provided with a seedling removal amount adjusting shaft or a planting depth adjusting shaft having a length over the entire width in the lateral direction, and each adjusting shaft is provided. (Hereinafter, collectively referred to as an operation shaft) is rotated around the axis,
Further, it is provided with a lever for holding the rotational operation position of the operation shaft.

When the seedling planting device having this kind of operation shaft is divided as in the conventional example, the operation shaft is also divided into the side provided with the lever and the side not provided with the lever. However, since the weight of the seedling placing table always acts on the seedling taking amount adjusting shaft, when the seedling planting device is divided, the shaft without lever is rotated by the weight of the seedling placing table, resulting in the seedling planting device. When the attached device is restored from the stored posture to the working posture, it is necessary to perform an operation to match the rotational phases of the divided shafts. Similarly, since the weight of the ground leveling float always acts on the planting depth adjusting shaft, when the seedling planting device is divided, the shaft without lever is rotated by the weight of the ground leveling float, When the seedling planting device is restored from the stored posture to the working posture, it is necessary to perform an operation to match the rotation phases of the divided axes.

Further, as a simple means for solving this inconvenience, for example, when the seedling planting device is divided in the case of a seedling taking amount adjusting shaft, the lever operation position is set to the seedling taking amount prior to the dividing operation. Is the maximum (the seedling stand is located at the bottom)
It may be possible to reduce the amount of rotation of the shaft not equipped with a lever even if the seedling collection adjustment shaft is divided, but in this type of operation system, the operation end by the lever is set. Since the rotation range of the shaft is set to be slightly larger than the position, when dividing the seedling planting device, one of the divided shafts, which does not have a lever, slightly rotates. Even if the lever is operated prior to the splitting operation as described above, when the seedling planting device is restored from the retracted posture to the working posture, the operation of matching the rotation postures of the respective divided shafts must be performed. .

As described above, when the operation shaft provided in the seedling planting device is divided, it is necessary to always operate the lever before the splitting or when the seedling planting device is restored to the working posture. There is also room for improvement in terms of.

An object of the present invention is to provide an adjusting system having a seedling take-up amount adjusting shaft or a planting depth adjusting shaft when the seedling planting device is divided into a storage posture and restored to a working posture. The point is to reasonably configure the rice transplanter without special operations.

[0008]

The first feature of the present invention (Claim 1) is, as described in the beginning, a seedling planting device for planting seedlings on a seedling platform in a field by a traveling machine. Seedling amount adjusting shaft that is connected to the rear end and sets the relative position between the operation locus of the planting claw tip that constitutes the planting mechanism and the seedling platform, or the tip of the planting claw that constitutes the planting mechanism. In a rice transplanter equipped with an operation shaft composed of a planting depth adjusting shaft for setting the relative position between the operation locus and the field scene, the seedling planting device is divided at an intermediate position in the left-right direction, and the divided product. By changing the posture around the longitudinal axis of the, the storage posture in which the left and right direction of the divided object is directed in the front-rear direction of the traveling machine body, and the work posture in which the work can be performed are freely switchable. The operating axes are provided for each of the divided objects so as to allow the division of Performs rotation operation of about axis against, and is in that it includes an operating lever for holding the rotational position, the action and effects are as follows.

A second feature of the present invention (Claim 4) is, as described at the beginning, that a seedling planting device for planting seedlings on a seedling platform in a field by a planting mechanism is provided at the rear end of the traveling machine body. While connecting
Between the operation locus of the tip of the planting claw that constitutes the planting mechanism and the seedling picking amount adjustment axis that sets the relative position of the seedling placing table, or the locus of the actuation of the tip of the planting claw that constitutes the planting mechanism and the field scene. In a rice transplanter equipped with an operation shaft consisting of a depth adjusting shaft for setting a relative position, the seedling planting device is divided at an intermediate position in the left-right direction, and the posture of the divided product around a longitudinal axis center A storage posture in which the left and right direction of the divided object is directed to the front-back direction of the traveling machine body by change, and a work posture in which the work is possible, and the operation shaft is separated in the storage posture by the seedling planting device,
In addition, a fitting portion is formed on the divided surface so that the seedling planting device integrally rotates in the working posture, and an operation lever is provided for the operation shaft on the side supported by one of the divided objects. The engaging holding portion that holds the operating position of the operating lever by engaging with the engaging piece formed on the operating lever is formed on the side of the other divided object, and the action and effect are as follows. On the street.

[0010]

According to the first feature (claim 1), since the operation shaft having the operation lever is provided for each divided object of the seedling planting device, even when the seedling planting device is divided. The operation shaft maintains the rotation posture, and there is no need to adjust the rotation posture of the operation shaft prior to this division, and also when the seedling planting device is restored from the storage posture to the working posture. There is no need to adjust the turning posture of the operating shaft.

According to a second aspect of the present invention, the operation levers are simultaneously operated by an integral operation such as simultaneously gripping the grips of the operation levers arranged close to each other, and the respective operation shafts are rotated by the same amount to plant seedlings. The amount of seedlings can be adjusted in the entire device, or the amount of planting depth can be set evenly.
Further, even if there is a difference in the operation amount between the adjacent operation levers, it is easy to visually and tactually find a discrepancy in the operation amounts of the operation levers and correct the adjustment amounts evenly.

According to a third aspect of the present invention, by operating one of the operating levers with the connecting member in the connected state, the other operating lever is simultaneously operated at the same time, and the operating shafts of the respective operating shafts are rotated by the same amount to plant seedlings. The amount of seedlings can be adjusted in the entire device, or the amount of planting depth can be set evenly.
Further, by releasing the connection of the connecting member, the seedling planting device can be divided.

According to the second feature (claim 4), when the seedling planting device is divided, the engaging piece engages with the engaging piece of the lever provided on the side of the operation shaft supported by one of the divided pieces. Since the holding member moves integrally with the other divided member in the separating direction, each of the divided operation shafts can freely rotate to the rotation end. Further, after that, when the seedling planting device is restored from the retracted posture to the working posture, each of the divided operation shafts is rotated to the rotation end, so that the rotation phase of each operation shaft is changed. Almost no matching operation is required.

[0014]

[Effects of the Invention] Therefore, when the seedling planting device is divided and switched to the storage posture, when the seedling planting device is restored to the working posture, the seedling taking amount adjusting shaft,
Alternatively, the rice transplanter was rationally constructed so that the adjusting system having the planting depth adjusting shaft did not have to be specially operated (Claim 1). Further, even though it is provided with a pair of operation levers, the respective operation levers can be simultaneously and equally operated with only one hand to enable adjustment of the whole seedling planting apparatus (claim 2,
3) The operation shaft is configured to be split, and is rotated by a single operation lever, but when the seedling planting device is split to switch to the storage posture and the seedling is restored to the working posture, the seedling harvesting is performed. The rice transplanter was rationally constructed so as not to specially operate the adjusting system having the quantity adjusting shaft or the planting depth adjusting shaft (claim 4).

[0015]

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 hydrostatic stepless transmission 5 to which the power from the engine 4 is transmitted, and a transmission case 6 are arranged, and a driving seat 7 is arranged at the center of the traveling body 3, and the rear end of the traveling body 3 is arranged. The seedling planting device A is connected to the section via a link mechanism 9 which is driven up and down by a hydraulic cylinder 8 to form a riding type rice transplanter.

An elevating lever 10 is provided on the right side of the driver's seat 7 for controlling the raising and lowering of the plant A for planting seedlings and for turning on and off a planting clutch (not shown). A gear shift lever 11 for operating the continuously variable transmission 5 is provided. The planting clutch is built in the mission case 6, and the disengaging operation is allowed only when the transmission shaft 12 that transmits power from the mission case 6 to the seedling planting device A is in a predetermined rotation phase. Seedling planting device A
The planting arm (described later) is configured to cut off the power in a posture that avoids contact with the field.

The seedling planting device A has a mat-shaped seedling W placed thereon, and its upper end side is inclined to the front side of the traveling body 3, and the left and right sides to which power from the transmission shaft 12 is transmitted. A pair of transmission cases 14, 14, this transmission case 14
A rotary case 16 which is rotated by the power transmitted from the chain case 15 to the rotary case 16, a pair of planting arms 17 provided in the rotary case 16 one by one, and a plurality of ground leveling floats 18 for eight-row planting. , Is provided with a fertilizer application device B having a structure in which the granular fertilizer stored in the hopper is fed from a feeding mechanism to a groove making device via a tube,
At the time of work, the planting arm 17 cuts out the seedlings one by one from the lower end of the mat-shaped seedling W placed on the seedling placing table 13 and plantes the seedlings in the field scene, and at the same time, the fertilizer application device B is placed under the field scene near the planted seedlings. To supply fertilizer. In addition, the seedling W with the planting arm 17
A system for planting a plant in a field is called a planting mechanism.

As shown in FIGS. 2 and 3, the bending and stretching link 1
A planting depth adjusting shaft 20 (an example of the operating shaft D) that supports the front part of the leveling float 18 via 9 and is provided on the lower surface of the chain case 15 so as to be rotatable around a shaft in a horizontal posture. The grounding float 18 is attached to the swing end of the connected arm 21.
Of the planting depth adjusting lever 23 (an example of the operating lever E) which is swingably connected to the intermediate portion of the plant and which is connected to the swinging lever 22 connected to the planting depth adjusting shaft 20. Leveling float 1 by locking and fixing in place of 24
8, that is, the planting depth S can be adjusted by changing the relative positional relationship between the field scene S and the planting arm 17, that is, the operation locus T of the planting claw of the planting arm 17. . The leveling float 18 is a single center float 18C arranged at the center position in the left-right direction and left and right side floats 18C.
It consists of S and 18S.

The sliding rail 25, which supports the seedling placing table 13 so that it can reciprocate in the left and right directions, can be vertically moved along the placing surface of the seedling placing table 13 so that the sliding rail 2 can be moved.
A shaft member 26 connected to 5 is slidably supported on the chain case 15, and a seedling-picking amount adjusting shaft 27 (which is supported on the upper surface of the chain case 15 so as to be rotatable and swingable around the axis in a horizontal position). An oscillating end of an arm member 28 formed on the operation shaft D is engaged with an engaging member 29 on the lower surface of the slide rail 25, and is connected to a oscillating lever 30 connected to the seedling-pickling amount adjusting shaft 27. The height of the slide rail 25 is set by locking and fixing the seedling picking amount adjusting lever 31 (an example of the operation lever E) at a predetermined position of the lever guide 32, and the mat shape is placed on the seedling placing table 13. It is configured so that the relative amount of seedlings can be adjusted by changing the relative positional relationship between the seedling W and the operation locus T of the tip of the planting claw of the planting arm 17.

Further, the planting depth adjusting shaft 20 and the seedling picking amount adjusting shaft 27 are divided into left and right parts A so as to allow the operation of dividing the seedling planting device into two and switching to the storage posture shown in FIG.
Each of L and AR is provided with the planting depth adjusting lever 23, which is arranged coaxially and has an operating position held by a lever guide 24 with respect to the left and right planting depth adjusting shafts 20 and 20, The seedling-picking-amount adjusting lever 31 whose operation position is held by a lever guide 32 with respect to the left and right seedling-picking-amount adjusting shafts 27, 27 is provided. Also, the left and right planting depth adjustment levers 2
The grips 23G and 23G of the Nos. 3 and 23 are arranged adjacent to each other in the left-right direction so that the grips 23G and 23G can be gripped at one time for operation. The grips 31G and 31G are arranged adjacent to each other in the left-right direction. When adjusting the planting depth, the grips 23 of the left and right planting depth adjusting levers 23, 23 are adjusted.
G and 23G are gripped at once to adjust the left and right planting depths at the same time. When adjusting the seedling picking amount, the gripping parts 31G and 3 of the left and right seedling picking amount adjusting levers 31, 31 are adjusted.
It is configured so that 1G can be gripped at one time and the left and right seedling removal amounts can be adjusted at the same time. Further, when only the planting depth adjusting system is illustrated, as shown in FIG. 4, the respective levers 23, 23,
Engaging pieces 33 are formed on 31, 31, and the lever guide 2
4, 24, 32, 32 are formed with engagement holding portions 34 having a plurality of recesses for engaging the engagement pieces 33 and holding the lever at a predetermined operation position, and a support shaft 35 formed in the middle of the lever. Around this, the lever is urged by a spring 36 in the engaging direction.

As shown in FIGS. 5 and 6, the link mechanism 9
Is a single top link 9T and a pair of left and right lower links 9
The rear ends of L and 9L are connected to each other by a vertical link 9V, and the front and rear are relative to the lower end position of an intermediate frame 41 (the structure of attachment and detachment is not described in detail) that is configured to be removable from the vertical link 9V. The seedling planting device A is connected and supported so as to be able to roll freely around the rolling axis Y in the facing posture.

In this rice transplanter, the seedling planting device A is configured so that it can be divided into two sections at a central position in the left-right direction. That is, as shown in FIGS. 5, 6, and 7, the intermediate frame 4
1. The first shaft 43 is non-rotatably arranged coaxially with the vertically oriented first shaft core X1 at both end positions of the main frame 42 which is rotatably connected around the rolling shaft center Y with respect to 1. A cylindrical frame member 45 is fixed to a cylindrical member 44 rotatably supported by 43.
The second shaft 47 is arranged at the swing end of the second shaft 47 so as to be coaxial with the second shaft core X2 in the vertical posture and to be rotatable with respect to the frame member 45 in an internally fitted state. The left and right channel-shaped brackets 48 are rotatably supported around the second shaft 47, and the transmission case 14 and the square pipe-shaped support frame 49 are connected to the brackets 48 to attach seedlings. Left and right divisions AL and AR of the device A are supported. Further, a pair of left and right regulating members 50 that project forward are provided at both left and right end positions of the main frame 42, and when the seedling planting apparatus A rises to the upper limit, the front ends of the regulating members 50, 50 are increased. Left and right lower links 9L, 9L
The rolling operation is regulated by contacting the lower surface of the.

As shown in FIG. 7, with the seedling planting apparatus A set in a working position, the first axis X is set with reference to the vertical direction.
The upper end side of each of the first and second axial cores X2 is inclined in the direction toward the front side of the traveling machine body 3, and the seedlings are placed so as to be coaxial with the second axial core X2 and rotate integrally with the bracket 48. The pillar-shaped frame 51 that supports the table 13 is connected and fixed. Further, as shown in FIG. 5, the base end of the chain case 15 is connected to the support frame 49.

A bevel case 52, to which the power from the transmission shaft 12 is transmitted, is arranged at a position displaced to the right of the rolling shaft core Y, and the power extracted from the bevel case 52 is branched in the left-right direction. An occlusal type clutch is interposed in the transmission system that transmits the transmission to the transmission case 14. This clutch is configured to be separable by operating the shift member 53 arranged on the output shaft side of the bevel case 52 in the separating direction.

Further, a top (not shown) engaged in the spiral groove of the screw shaft 54 which is rotationally driven by the power of the left transmission case 14.
The lateral feeding mechanism of the seedling placing table 13 is configured by including a moving member 55 that transmits the moving force of the above to the side opposite to the seedling placing surface of the left divided seedling placing table 13L. A protective frame 56 having a shape that surrounds the outer end of the slide rail 25 is connected and fixed to the outer end of the support frame 49 so as to protect the outer end of the slide rail 25. In addition, the seedling placing table 13 is a left and right divided seedling placing table 13
L and 13R are connected to each other by a connecting mechanism to be described later, so that the sliding rails 25 and 25 can be driven by the power from the transverse feed mechanism.
It reciprocates integrally on the top in the lateral direction.

This rice transplanter is provided with an interlocking operation system (not shown) for interlocking the left and right divided parts with the first axis X1 and the second axis X2 in interlocking movement, and with respect to the main frame 42. 8, a locking mechanism (not shown) for holding the support frame 49 in a working posture is provided, and as shown in FIG. 8, a first connecting mechanism R1 for connecting the left and right divided seedling placing stands to each other, and left and right sliding rails 25. , 25 a second connecting mechanism R2 for connecting the two, as shown in FIG. 5, a rod-shaped member arranged between the plates 57, 57 at the rear ends of the chain cases 15, 15 at positions facing each other across the dividing surface. The divided object A by each of the third connecting mechanism R3 of
It is configured so that L and AR can be held in the work posture.

With this configuration, when the seedling planting device A is stored, the hydraulic cylinder 9 is extended to operate the link mechanism 9 to the highest position, and the transverse feed mechanism is driven as shown in FIG. The seedling stand 13 is sent to the left end position by force and stopped, and the first connecting mechanism R1 and the second connecting mechanism R are stopped.
2 is separated and the clutch mechanism is disengaged to maintain its operating position (the holding structure is not described in detail), and the support frame 49 is free with respect to the main frame 42 by the unlocking operation of the locking means. Switch to a state in which it can be rotated, and remove the third connecting mechanism R3.

Next, as shown in FIG. 9, the right divided seedling placing table 13R is artificially moved to the right moving end to lock the movement of the divided seedling placing table 13R on the slide rail 25. (Not shown) to prevent (in this state, the distance between the left and right split seedling placement tables 13R, 13L reaches about 30 cm). After that, when one of the divided parts is rotated by a manual operation, the frame members 45, 45 are interlocked by the interlocking operation system, and as a result, the first axis X
1, around X1, swings toward the inside of the traveling machine body 3 on the rear end side of the frame members 45, 45, and at the same time,
The system supported by the brackets 48, 48 around the axes X2, X2 is in the opposite direction at a speed twice as fast as the rotational speed of the frame members 45, 45, that is, the left and right outer ends thereof are forward of the traveling machine body 3. It will rotate toward the side.

Further, as shown in FIG. 10, the corners 13E, 13E at the upper inner ends of the left and right split seedling placement tables 13L, 13R approach each other when rotating to the storage posture, but the split seedling placement platform is seen in a plan view. Since the 13L and 13R rotate at positions separated from each other, it is possible to rotate while avoiding contact between the corners 13E and 13E.
As shown in FIGS. 12 and 13, the storage posture is reached. When the storage posture is reached, the third connecting mechanism R3 removed as described above is interposed between the left divided member AL and the right divided member AR as shown in FIG. 6, and the left and right regulating members 50, 50 are provided. Connection mechanism R4 between the left and right protection frames 56, 56
When the left and right divided objects AL, AR are prevented from pivoting in the separating direction, the storing operation is completed.

When the seedling planting apparatus A is switched to the retracted posture, the system of the pair of planting depth adjusting shafts 20 and 20,
Also, since the system of the pair of seedling taking amount adjusting shafts 27, 27 allows the seedling planting device A to be divided without interfering with each other, the set values of the planting depth adjusting system and the seedling taking amount adjusting system are changed. Nothing.

In this retracted posture, as shown in FIG. 11, the left and right split seedling placing bases 13L and 13R are slid on rails 25,
25, at a position close to the traveling machine body 3 side, the upper end edges reach a posture in which the upper end edges are parallel to each other, so that the weight of the whole seedling planting apparatus A is moved to the traveling machine body 3 side and the weight of the entire rice transplanter machine is increased. This improves the balance and reduces the lateral dimension of the seedling planting apparatus A. Further, in this storage posture, the frame members 45, 4 are arranged around the first axis X1 in the inclined posture.
As shown in FIG. 12, the rear side of the left and right divided objects AL and AR is lifted upward by the rotation of the rotating body 5 as a result of the rotation of the moving body 5, and as a result, the apparent front-back direction of the seedling planting device A in plan view is increased. At the same time as the size is reduced, the center of gravity of the seedling planting apparatus A is brought closer to the traveling body side. In addition, the divided seedling placing table 1 is formed by rotating the divided objects AL and AR around the second axis X2.
As shown in FIG. 13, 3L and 13R are switched to the standing posture (the posture in which the front end of the leveling float 18 is lifted), and as a result, the lateral dimension of the seedling planting apparatus A is further reduced.

When the seedling planting apparatus A in the retracted posture is restored to the working posture, the left and right fourth connecting mechanisms R4 are separated, the third connecting mechanism R3 is removed, and the left and right divided objects A are separated.
After rotating L and AR in the restoring direction and holding the support frame 49 in the working position with respect to the main frame 42 by the locking operation of the locking means, and confirming that the clutch mechanism engages in an appropriate position, 2 Locking the connecting mechanism R2, attaching the third connecting mechanism R3, moving the right divided seedling placing base 13R to the left divided seedling placing base 13L, and further connecting the first connecting mechanism R1. Then, the seedling planting device A reaches a workable state.

[Other Embodiments] The present invention can be carried out as follows in addition to the above embodiments. Incidentally, in this other embodiment, those having the same functions as those of the embodiment are given the same numbers and reference numerals as those of the embodiment.

(A) As shown in FIG. 14, when the planting depth adjusting system is taken as an example, the left and right splits A as in the above embodiment.
Each of L and AR is equipped with a planting depth adjusting shaft 20, 20, and a planting depth adjusting lever 23, 23. When the seedling planting apparatus A is in a working posture, the same operation as one lever 23 is performed. It is also possible to configure the connecting member 61 that transmits to the other lever 23 so as to be switchable between the connected state and the separated state. or,
In this alternative embodiment, only one lever 23 has a grip 23.
G is formed, and one end of the connecting member 61 is swingably connected to one lever 23 around the support shaft 62, and the other end is connected to the other lever 23. It is configured to engage the groove 61A of the connecting member 61 with the pin 63 that is fixed to the pin 63 so that the pin 63 is connected in a state of being held by the lock piece 64, and when the seedling planting apparatus A is switched to the storage posture. An operation of separating the connecting member 61 from the pin 23 is performed.
Incidentally, this other embodiment corresponds to the third aspect, and can be applied to a seedling removal amount adjusting system.

(B) As shown in FIGS. 15 (a) and 15 (b), when the planting depth adjusting system is taken as an example, when the seedling planting device is in the working posture, the planting depth adjusting shaft. A pair of shaft bodies 20L and 20R, which are separable in the vicinity of the dividing surface of the seedling planting device A, so that the seedling planting device A can be split when the seedling planting device A is switched to the work posture, respectively. One of the divided parts AR of the seedling planting device A is configured by providing a pair of fitting connecting members 65 and 66 that are integrally rotatably coupled to each other to configure the planting depth adjusting shaft 20.
The planting depth adjusting shaft 20R supported on the side of is provided with a planting depth adjusting lever 23, and the lever guide 24 is configured to be divided into left and right two members 24L and 24R and the other divided object AL. By supporting the engagement holding portion 34 of the lever guide 24 on the side of, the engagement holding portion 34 of the lever guide 24 and the engagement of the planting depth adjusting lever 23 when the seedling planting device A is divided. It is also possible to separate the piece 33 from each other and to rotate the shaft bodies 20L and 20R of the planting depth adjusting shaft 20 in the respective divided states to the rotating end portions. The planted depth adjusting lever 23 is provided on the side provided with the planted depth adjusting lever 23.
A stopper 67 for restricting the fall around the support shaft 35 is provided. In the case where the shafts 20L and 20R are rotated to the rotation ends in this way, the rotation phases of the shafts 20L and 20R are not adjusted even when the seedling planting apparatus A is restored to the working posture. In both cases, the fitting connection members 65 and 66 reach the fitted state in an appropriate relative posture. This other embodiment corresponds to claim 4 and can be applied to a seedling removal amount adjusting system.

(C) In addition, according to the present invention, if the seedling planting device is divided and the left and right directions of the divided seedling mounting bases are switched to a storage attitude in which the traveling machine body is oriented in the front-rear direction, for storage. The structure may be different from that of the above-mentioned embodiment, and can be applied to a seedling planting device with 10 or more plants.

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 showing a planting depth control system and a seedling removal amount control system.

FIG. 3 is a side view showing a planting depth control system and a seedling removal amount control system.

FIG. 4 is a sectional view of a locking structure of a planting depth adjusting lever.

FIG. 5 is a plan view of the transmission system of the seedling planting device in a working posture.

FIG. 6 is a plan view of the transmission system of the seedling planting device in the retracted posture.

FIG. 7 is a side view showing the postures of the first axis and the second axis.

FIG. 8 is a plan view of the rice transplanter with the seedling stand placed at the end of the sliding rail.

[Figure 9] Plan view of rice transplanter with divided seedling mount

FIG. 10 is a plan view of a rice transplanter in which the seedling planting device is divided and rotated.

FIG. 11 is a plan view of the rice transplanter with the seedling planting device set in the retracted posture.

FIG. 12 is a side view of the seedling planting device in the retracted posture.

FIG. 13 is a rear view of the seedling planting device in a stored state

FIG. 14 is a view showing a lever and a connecting member of another embodiment (a).

FIG. 15 (a) is a view showing an engaging structure of a lever in another embodiment (b) in a connected state; and (b) is a view showing an engaging structure of a lever in another embodiment (b) in a separated state.

16 (a), (b), (c), and (d) are plan views of the rice transplanter sequentially showing a state in which the seedling planting device is divided and stored in the conventional example.

[Explanation of symbols]

 3 Traveling vehicle 13 Seedling platform 20 Planting depth adjusting shaft 27 Seedling amount adjusting shaft 33 Engaging piece 34 Engagement holding part 61 Connecting member A Seedling planting device AL, AR Divided D Operation axis E Operation lever S Field Surface T operation locus W seedling

Front page continuation (72) Inventor Yasuhide Minamikawa 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Factory (72) Inventor Hiroaki Kitai 64, Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Sakai Factory (72) ) Inventor Susumu Yamamoto 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Plant Co., Ltd. (72) Inventor Takeshi Mukai 64, Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Plant Co., Ltd.

Claims (4)

[Claims] 1. A seedling (W) placed on a seedling stand (13)
The seedling planting device (A) that cuts out the plant with a planting mechanism and is planted in the field is vertically connected to the rear end of the traveling machine body (3), and the operation locus (T) of the tip of the planting claw that constitutes the planting mechanism (T )
Of the seedling removal amount adjusting shaft (27) for setting the relative position between the seedling placing table (13) and the working path (T) of the tip of the planting claw constituting the planting mechanism and the field scene (S). A rice transplanter equipped with an operating shaft (D) consisting of a planting depth adjusting shaft (20) for setting a position, wherein the seedling planting device (A) is divided at an intermediate position in the left-right direction, A storage posture in which the left and right directions of the divided objects (AL) and (AR) are changed to the front-rear direction of the traveling vehicle body (3) by changing the attitude around the longitudinal axis of the divided objects (AL) and (AR), and work The operation shaft (D) is configured so as to be switchable to a possible work posture and also allows the seedling planting device (A) to be divided.
Is provided for each of the divided objects (AL) and (AR), and the operation shaft (D) is rotated about the axis and the rotation operation position is held. Rice transplanter equipped with an operating lever (E). 2. The respective operation shafts (D) are arranged on the same axis when the seedling planting device (A) is set in a working posture, and the respective operation levers (E) are arranged. The grip is
The rice transplanter according to claim 1, wherein the rice transplanters are arranged at positions adjacent to each other in a lateral direction when the seedling planting device (A) is set to a work posture. 3. The respective operation shafts (D) are arranged on the same axis when the seedling planting device (A) is set in a working posture, and the respective operation levers (E) are arranged. When the seedling planting device (A) is set to the work posture, it is arranged in the adjacent position, and when the seedling planting device (A) is set to the work posture, one operation lever (E) is operated. There is a state in which the respective operation levers (E) are connected so as to operate the other operation lever (E) equally in the same direction, and a state in which the connection is released so that they can be separated when the seedling planting device (A) is divided. The rice transplanter according to claim 1, further comprising a switchable connecting member (61). 4. A seedling (W) placed on a seedling stand (13)
The seedling planting device (A) that cuts out the plant with a planting mechanism and is planted in the field is vertically connected to the rear end of the traveling machine body (3), and the operation locus (T) of the tip of the planting claw that constitutes the planting mechanism (T )
Of the seedling removal amount adjusting shaft (27) for setting the relative position between the seedling placing table (13) and the working path (T) of the tip of the planting claw constituting the planting mechanism and the field scene (S). A rice transplanter equipped with an operating shaft (D) consisting of a planting depth adjusting shaft (20) for setting a position, wherein the seedling planting device (A) is divided at an intermediate position in the left-right direction, A storage posture in which the left and right directions of the divided objects (AL) and (AR) are changed to the front-rear direction of the traveling vehicle body (3) by changing the attitude around the longitudinal axis of the divided objects (AL) and (AR), and work It is configured to be switchable to a possible work posture, the operation shaft (D) is separated by the seedling planting device (A) in the retracted posture, and the seedling planting device (A) is integrally rotated in the working posture. To do
A fitting portion is formed on the divided surface, and an operation lever (E) is provided for the operation shaft (D) on the side supported by one of the divided objects, and the engagement formed on the operation lever (E) A rice transplanter in which an engagement holding portion (34) that engages with the piece (33) and holds the operation position of the operation lever (E) is formed on the side of the other divided product.